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1,403 | 79,325 | Insertion techniques for the heuristic solution of the job shop problem | Discrete Applied Mathematics | In this paper we deal with the heuristic solution of the classical job shop problem. Both the constructive and the iterative phase of our algorithm apply insertion techniques combined with beam search. In the first phase we successively insert the operations into feasible partial schedules. In the iterative phase we generate paths in a particular neighbourhood graph instead of investigating the neighbourhood completely. To select "interesting" neighbours, we use the combinatorial path structure of feasible solutions of the job shop problem. The results of our algorithm are compared with those from other well-known methods on benchmark problems. © 1995. | ["Werner F.", "Winkler A."] | ["7102647088", "25935589000"] | 1,995 | 53 | ["Insertion algorithm", "Job shop problem", "Neighbourhood heuristics", "Path search", "Scheduling"] | 10.1016/0166-218X(93)E0127-K | Article | English | [{"id": "60018362", "name": "Fakultät für Mathematik, Technische Universität Otto von Guericke, 39016 Magdeburg, PSF 4120, Germany", "fullName": "Fakultät für Mathematik, Technische Universität Otto von Guericke", "reference": "a", "fullAddress": "39016 Magdeburg, PSF 4120, Germany", "departmentId": "103941239"}] |
1,404 | 79,355 | Aspiration Based Simulated Annealing Algorithm | Journal of Global Optimization | An aspiration based simulated annealing algorithm for continuous variables has been proposed. The new algorithm is similar to the one given by Dekkers and Aarts (1991) except that a kind of memory is introduced into the procedure with a self-regulatory mechanism. The algorithm has been applied to a set of standard global optimization problems and a number of more difficult, complex, practical problems and its performance compared with that of the algorithm of Dekkers and Aarts (1991). The new algorithm appears to offer a useful alternative to some of the currently available stochastic algorithms for global optimization. | ["Ali M.M.", "Storey C."] | ["35345300500", "58373596900"] | 1,997 | 0 | ["Aspiration value", "Continuous variables", "Global optimization", "Simulated annealing", "Stochastic"] | 10.1023/A:1008202703889 | Article | English | [{"id": "60015375", "name": "Department of Computer Science, Åbo Akademi University, Turku, Finland", "fullName": "Department of Computer Science, Åbo Akademi University", "reference": "a", "fullAddress": "Turku, Finland", "departmentId": "103793995"}, {"id": "60017098", "name": "Department of Mathematical Sciences, DeMontfort University, The Gateway, Leicester, United Kingdom", "fullName": "Department of Mathematical Sciences, DeMontfort University, The Gateway", "reference": "b", "fullAddress": "Leicester, United Kingdom", "departmentId": "103883316"}] |
1,405 | 79,365 | An improved method for the isolation of κ-casein | BBA - Biochimica et Biophysica Acta | An improved method for the isolation of κ-casein, the rennin sensitive material of whole casein, is described. Acid casein is used as starting material and a comparatively high yield of product is obtained. The κ-casein has been characterized by sedimentation velocity, sensitivity to calcium and rennin, and by zone electrophoresis in concentrated urea. © 1961. | ["McKenzie H.A.", "Wake R.G."] | ["7004650354", "35571271700"] | 1,961 | 88 | [] | 10.1016/0006-3002(61)90281-5 | Article | English | [{"id": "60008950", "name": "Australia", "fullName": null, "reference": "a", "fullAddress": "Australia", "departmentId": "103494122"}, {"id": "60012708", "name": "Department of Biochemistry, Stanford University, Palo Alto, CA, United States", "fullName": "Department of Biochemistry, Stanford University", "reference": "b", "fullAddress": "Palo Alto, CA, United States", "departmentId": "113656614"}] |
1,406 | 79,433 | A remark on trace properties of K-cycles | Journal of Operator Theory | In this paper we discuss trace properties of d<sup>+</sup>-summable K-cycles considered by A. Connes in [6]. More precisely we give a proof of a trace theorem on the algebra A of a K-cycle stated in [6], namely we show that a natural functional on A is a trace functional. Then we discuss whether this functional gives a trace on the whole universal graded differential algebra Ω(A). On the one hand we prove that the regularity conditions on K-cycles considered in [6] imply the trace property on Ω(A). On the other hand, by constructing an explicit counterexample, we remark that the sole K-cycle assumption is not sufficient for such a property to hold. © Copyright by THETA, 1996. | ["Cipriani F.", "Guido D.", "Scarlatti S."] | ["7004286019", "7003441480", "6506913689"] | 1,996 | 20 | ["Dirac operator", "Noncommutative geometry", "Singular traces", "Traces on K-cycles"] | null | Article | English | [{"id": "60015138", "name": "Mathematical Department, University of Nottingham, Nottingham, University Park NG7-2RD, United Kingdom", "fullName": "Mathematical Department, University of Nottingham", "reference": "a", "fullAddress": "Nottingham, University Park NG7-2RD, United Kingdom", "departmentId": "103777921"}, {"id": "60027509", "name": "Dipartimento di Matematica, Università di Roma Tor Vergata, 1-00133 Roma, Via dellaa Ricerca Scientifica, Italy", "fullName": "Dipartimento di Matematica, Università di Roma Tor Vergata", "reference": "b", "fullAddress": "1-00133 Roma, Via dellaa Ricerca Scientifica, Italy", "departmentId": "104393125"}] |
1,407 | 79,496 | Topological defects inside domain walls | Physical Review D - Particles, Fields, Gravitation and Cosmology | We investigate the presence of topological defects inside domain walls in a specific system of coupled real scalar fields. This system belongs to a general class of systems of coupled real scalar fields, and presents some interesting properties in 1+1 dimensions. The potential that identifies the system is defined with two parameters, and we show that this is enough to implement the idea concerning the presence of defects inside defects. © 1996 The American Physical Society. | ["Bazeia D.", "Ribeiro R.F.", "Santos M.M."] | ["7003421042", "7202534625", "7402561370"] | 1,996 | 47 | [] | 10.1103/PhysRevD.54.1852 | Article | English | [{"id": "60011324", "name": "Departamento de Física, Universidade Federal da Paraíba, João Pessoa, 58051-970, Caixa Postal 5008, Brazil", "fullName": "Departamento de Física, Universidade Federal da Paraíba", "reference": "a", "fullAddress": "João Pessoa, 58051-970, Caixa Postal 5008, Brazil", "departmentId": "103607042"}, {"id": "60011324", "name": "Departamento de Matemática, Universidade Federal da Paraíba, João Pessoa, 58051-970, Brazil", "fullName": "Departamento de Matemática, Universidade Federal da Paraíba", "reference": "b", "fullAddress": "João Pessoa, 58051-970, Brazil", "departmentId": "100294028"}] |
1,408 | 79,517 | Issues in the estimation and application of latent structure models of choice | Marketing Letters | Our paper provides a brief review and summary of issues and advances in the use of latent structure and other finite mixture models in the analysis of choice data. Focus is directed to three primary areas: (1) estimation and computational issues, (2) specification and interpretation issues, and (3) future research issues. We comment on what latent structure models have promised, what has been, to date, delivered, and what we should look forward to in the future. © 1994 Kluwer Academic Publishers. | ["Dillon W.R.", "Böckenholt U.", "de Borrero M.S.", "Bozdogan H.", "de Sarbo W.", "Gupta S.", "Kamakura W.", "Kumar A.", "Ramaswamy B.", "Zenor M."] | ["7102981646", "7003790494", "57215636357", "6602434210", "7003867939", "7407275522", "7004159593", "55619311862", "57215637250", "6506203515"] | 1,994 | 12 | ["discrete choice", "finite mixture models", "latent structure models"] | 10.1007/BF00999208 | Article | English | [{"id": "60017536", "name": "Southern Methodist University, United States", "fullName": "Southern Methodist University", "reference": "a", "fullAddress": "United States", "departmentId": null}, {"id": "60000745", "name": "University of Illinois, United States", "fullName": "University of Illinois", "reference": "b", "fullAddress": "United States", "departmentId": null}, {"id": "60000060", "name": "Lehigh University, United States", "fullName": "Lehigh University", "reference": "c", "fullAddress": "United States", "departmentId": null}, {"id": "112891548", "name": "University of Tennessee, United States", "fullName": "University of Tennessee", "reference": "d", "fullAddress": "United States", "departmentId": null}, {"id": "60025778", "name": "University of Michigan, United States", "fullName": "University of Michigan", "reference": "e", "fullAddress": "United States", "departmentId": null}, {"id": "60030162", "name": "Columbia University, United States", "fullName": "Columbia University", "reference": "f", "fullAddress": "United States", "departmentId": null}, {"id": "60015543", "name": "University of Pittsburg, United States", "fullName": "University of Pittsburg", "reference": "g", "fullAddress": "United States", "departmentId": null}, {"id": "60003892", "name": "Arizona State University, United States", "fullName": "Arizona State University", "reference": "h", "fullAddress": "United States", "departmentId": null}, {"id": "60032211", "name": "University of Texas, United States", "fullName": "University of Texas", "reference": "i", "fullAddress": "United States", "departmentId": null}] |
1,409 | 79,578 | Computational models in atomic collision studies | Nuclear Inst. and Methods in Physics Research, B | Some recent developments in computational models of atomic collision studies are described and the relative merits of the binary collision and molecular dynamics approaches are discussed. © 1992. | ["Smith R.", "Webb R.P."] | ["7410291654", "7403006881"] | 1,992 | 22 | [] | 10.1016/0168-583X(92)95836-G | Article | English | [{"id": "60000891", "name": "Department of Mathematical Sciences, Loughborough University, Loughborough, Leicestershire LE11 3TU, United Kingdom", "fullName": "Department of Mathematical Sciences, Loughborough University", "reference": "a", "fullAddress": "Loughborough, Leicestershire LE11 3TU, United Kingdom", "departmentId": "105452992"}, {"id": "60021097", "name": "Department of Electronics and Electrical Engineering, University of Surrey, Guildford, GU2 5XH, United Kingdom", "fullName": "Department of Electronics and Electrical Engineering, University of Surrey", "reference": "b", "fullAddress": "Guildford, GU2 5XH, United Kingdom", "departmentId": "105382343"}] |
1,410 | 79,625 | Fast Algorithms for the DFT and other Sinusoidal Transforms | IEEE Transactions on Acoustics, Speech, and Signal Processing | A new matrix factorization is proposed for DCT-IV, which is the basis of fast algorithms for many sinusoidal transforms. The new fast algorithm for DFT, based on the new factorization, requires the same number of multiplications and far fewer additions than the Preuss algorithm. © 1986 IEEE | ["Suehiro N.", "Hatori M."] | ["7004490264", "7102025638"] | 1,986 | 60 | [] | 10.1109/TASSP.1986.1164854 | Article | English | [{"id": "60018735", "name": "Research and Development Center, Toshiba Corporation, Saiwai-ku, Kawasaki 210, Japan", "fullName": "Research and Development Center, Toshiba Corporation", "reference": "a", "fullAddress": "Saiwai-ku, Kawasaki 210, Japan", "departmentId": "103958839"}, {"id": "60025272", "name": "Faculty of Engineering, University of Tokyo, Bunkyo-ku, Tokyo 113, Japan", "fullName": "Faculty of Engineering, University of Tokyo", "reference": "b", "fullAddress": "Bunkyo-ku, Tokyo 113, Japan", "departmentId": "109957668"}] |
1,411 | 79,650 | Structure identification in relational data | Artificial Intelligence | This paper presents several investigations into the prospects for identifying meaningful structures in empirical data, namely, structures permitting effective organization of the data to meet requirements of future queries. We propose a general framework whereby the notion of identifiability is given a precise formal definition similar to that of learnability. Using this framework, we then explore if a tractable procedure exists for deciding whether a given relation is decomposable into a constraint network or a CNF theory with desirable topology and, if the answer is positive, identifying the desired decomposition. Finally, we address the problem of expressing a given relation as a Horn theory and, if this is impossible, finding the best k-Horn approximation to the given relation. We show that both problems can be solved in time polynomial in the length of the data. © 1992. | ["Dechter R.", "Pearl J."] | ["7003845249", "7101604154"] | 1,992 | 99 | [] | 10.1016/0004-3702(92)90009-M | Article | English | [{"id": "60007278", "name": "Information and Computer Science, University of California, Irvine, CA 92717, United States", "fullName": "Information and Computer Science, University of California", "reference": "a", "fullAddress": "Irvine, CA 92717, United States", "departmentId": null}, {"id": "60027550", "name": "Cognitive Systems Laboratory, Computer Science Department, University of California, Los Angeles, CA 90024, United States", "fullName": "Cognitive Systems Laboratory, Computer Science Department, University of California", "reference": "b", "fullAddress": "Los Angeles, CA 90024, United States", "departmentId": "100287525"}] |
1,412 | 79,651 | Estimation of the radiation source term with a conjugate-gradient method of inverse analysis | Journal of Quantitative Spectroscopy and Radiative Transfer | The conjugate-gradient method of inverse analysis using an adjoint function approach is presented for the solution of an inverse radiation problem for estimating the source term from measured exit radiation intensities in a plane-parallel slab. The advantage of the method is that the inverse problem is solved as an optimization problem in function space with no prior information on the functional form of the unknown source term. © 1992. | ["Li H.Y.", "Ozisik M.N."] | ["9277253900", "7006522247"] | 1,992 | 19 | [] | 10.1016/0022-4073(92)90013-T | Article | English | [{"id": "60004923", "name": "Mechanical and Aerospace Engineering Department, North Carolina State University, Raleigh, NC 27695, P.O. Box 7910, United States", "fullName": "Mechanical and Aerospace Engineering Department, North Carolina State University", "reference": "a", "fullAddress": "Raleigh, NC 27695, P.O. Box 7910, United States", "departmentId": "105453151"}] |
1,413 | 79,707 | Iterated function system and Ruelle operator | Journal of Mathematical Analysis and Applications | We consider a generalized iterated function system where the weights are variable functions. By using the Ruelle operator and a dynamical system consideration we prove that if the system is contractive and the weights are strictly positive functions and satisfy the Dini condition, then there exists a unique eigenmeasure (corresponding to the Ruelle operator) on the attractor. If in addition the maps are conformal and satisfy the open set condition, then we prove that they satisfy the strong open set condition, and by using this we can give a description of theL<sup>p</sup>-scaling spectrum and the multifractal structure of the eigenmeasure. The work extends some results of [Proc. London Math. Soc.73(1996), 105-154;Adv. Appl. Math.19(1997), 486-513;J. Statist. Phys.86(1997), 233-275;Indiana Univ. Math. J.42(1993), 367-411]. © 1999 Academic Press. | ["Fan A.H.", "Lau K.-S."] | ["7005673105", "7401559998"] | 1,999 | 58 | [] | 10.1006/jmaa.1998.6210 | Article | English | [{"id": "60002272", "name": "Department of Mathematics, University of Cergy-Pontoise, 95302, Cergy-Pontoise, 2, Avenue A. Chauvin, France", "fullName": "Department of Mathematics, University of Cergy-Pontoise", "reference": "a", "fullAddress": "95302, Cergy-Pontoise, 2, Avenue A. Chauvin, France", "departmentId": "103162692"}, {"id": "60015543", "name": "Department of Mathematics, University of Pittsburgh, Pittsburgh, PA 15260, United States", "fullName": "Department of Mathematics, University of Pittsburgh", "reference": "b", "fullAddress": "Pittsburgh, PA 15260, United States", "departmentId": "105382103"}] |
1,414 | 79,718 | A bi-Hamiltonian formulation for separable potentials and its application to the Kepler problem and the Euler problem of two centers of gravitation | Physics Letters A | We give here a bi-Hamiltonian formulation for natural Hamiltonian systems separable in generalized elliptic, generalized parabolic and spherical coordinates. It requires the use of an extra variable so that the phase space is odd dimensional and the Poisson brackets are degenerate. The general results are illustrated by several examples: in particular the Kepler problem and the Euler problem of two centers of gravitation are discussed. © 1991. | ["Rauch-Wojciechowski S."] | ["6602478287"] | 1,991 | 22 | [] | 10.1016/0375-9601(91)90604-7 | Article | English | [{"id": "60009358", "name": "Department of Mathematics, Linköping University, S 581 83 Linköping, Sweden", "fullName": "Department of Mathematics, Linköping University", "reference": "a", "fullAddress": "S 581 83 Linköping, Sweden", "departmentId": null}] |
1,415 | 79,757 | Compactness in fuzzy topological spaces | Journal of Mathematical Analysis and Applications | Since earlier approaches to compactness in fuzzy spaces have serious limitations, we propose a new definition of fuzzy space compactness. In doing so, we observe that it is possible to have degrees of compactness, which we call α-compactness (α a member of a designated lattice). We obtain a Tychonoff Theorem for an arbitrary product of α-compact fuzzy spaces and a 1-point compactification. We prove that the fuzzy unit interval is α-compact. © 1978. | ["Gantner T.E.", "Steinlage R.C.", "Warren R.H."] | ["6506197245", "6508001046", "7401711716"] | 1,978 | 199 | [] | 10.1016/0022-247X(78)90148-8 | Article | English | [{"id": "60008609", "name": "Department of Mathematics, University of Dayton, Dayton, OH 45469, United States", "fullName": "Department of Mathematics, University of Dayton", "reference": "a", "fullAddress": "Dayton, OH 45469, United States", "departmentId": "103478312"}, {"id": "60018988", "name": "University of Nebraska at Omaha, Omaha, NE 68101, United States", "fullName": "University of Nebraska at Omaha", "reference": "b", "fullAddress": "Omaha, NE 68101, United States", "departmentId": null}] |
1,416 | 79,822 | A short proof of the Chen-Manalastas theorem | Discrete Mathematics | Gallai and Milgram (1960) proved that a digraph with stability number α is spanned by α disjoint directed paths. Chen and Manalastas Jr (1983) proved that a strong digraph with stability number at most two is spanned by at most two consistent directed circuits. We slightly simplify the proof of the Gallai-Milgram theorem, while at the same time refining its statement, and use this sharpened version to obtain a relatively short proof of the Chen-Manalastas theorem. We also give a counterexample to a generalization of the Gallai-Milgram theorem conjectured by Hartman (1988). © 1995. | ["Bondy J.A."] | ["16418622200"] | 1,995 | 9 | [] | 10.1016/0012-365X(94)00173-1 | Article | English | [{"id": "60014171", "name": "University of Waterloo, Waterloo, Ont. N2L 3G1, Canada", "fullName": "University of Waterloo", "reference": "a", "fullAddress": "Waterloo, Ont. N2L 3G1, Canada", "departmentId": null}] |
1,417 | 79,866 | A Simple Expression for Optical FDM Network Scale Considering Fiber Four-Wave Mixing and Optical Amplifier Noise | Journal of Lightwave Technology | Possible transmission distance and number of channels are studied in optical FDM (frequency division multiplexed) systems. Optical amplifier noise and fiber four-wave mixing, which respectively restrict input power to a repeater and input power to a fiber, are taken into account. A simple analytical expression is derived for evaluating FDM network scale by using a Gaussian noise approximation. Calculation examples are also presented. © 1995 IEEE | ["Inoue K."] | ["55675854400"] | 1,995 | 33 | [] | 10.1109/50.387802 | Article | English | [{"id": "60025555", "name": "NTT Transmission Systems Laboratories, Kanagawa 238-03, Japan", "fullName": "NTT Transmission Systems Laboratories", "reference": "a", "fullAddress": "Kanagawa 238-03, Japan", "departmentId": null}] |
1,418 | 79,889 | Perturbation classes of semi-Fredholm operators | Mathematische Zeitschrift | null | ["Weis L."] | ["7004189987"] | 1,981 | 23 | [] | 10.1007/BF01214880 | Article | English | [{"id": "60009941", "name": "Fachbereich Mathematik der Universität Kaiserslautern, Kaiserslautern, D-6750, Erwin-Schrödinger-Straße, Germany", "fullName": "Fachbereich Mathematik der Universität Kaiserslautern", "reference": "a", "fullAddress": "Kaiserslautern, D-6750, Erwin-Schrödinger-Straße, Germany", "departmentId": null}] |
1,419 | 79,899 | Variational and Generalized Variational Inequalities with Discontinuous Mappings | Journal of Mathematical Analysis and Applications | In this paper, we derive several existence results for the variational and the generalized variational inequality problems where the mappings under consideration need not have any continuity properties. Uniqueness of the solution of the generalized variational inequality problem is also investigated. As a by-product, we obtain several existence and uniqueness results for the generalized complementarity problem. Applications to minimization problems with generalized convex functions are considered. © 1994 Academic Press, Inc. | ["Yao J.C.", "Guo J.S."] | ["55508684300", "7404489825"] | 1,994 | 42 | [] | 10.1006/jmaa.1994.1092 | Article | English | [{"id": "60011357", "name": "Department of Applied Mathematics, National Sun Yat-sen University, Kaohsiung, 80424, Taiwan", "fullName": "Department of Applied Mathematics, National Sun Yat-sen University", "reference": "a", "fullAddress": "Kaohsiung, 80424, Taiwan", "departmentId": "100263301"}, {"id": "60018029", "name": "Institute of Applied Mathematics, National Tsing Hua University, Hsinchu, 30043, Taiwan", "fullName": "Institute of Applied Mathematics, National Tsing Hua University", "reference": "b", "fullAddress": "Hsinchu, 30043, Taiwan", "departmentId": "103925675"}] |
1,420 | 79,906 | A Method for Eliciting and Comparing Causal Maps | Journal of Management | Causal mapping has long been valued as a tool for exploring individuals’ idiosyncratic beliefs. in this paper we do three things to make these benefits more utilizable by researchers. First, by detailing a replicable elicitation technique, we lay the ground for systematic and objective comparison of these beliefs: Systematic analysis and comparison require systematic elicitation. Secondly, through a careful analysis of what a causal map means, we have been able to refine a way of comparing maps which uses all of the available information within the maps and is objective in the sense that all subjective aspects of the method are made explicit (e.g., the pool of constructs, the interpretation of missing information, etc.). Thirdly, we discuss and extend various tools for analyzing the distance based measures which the comparison yields. In addition, a brief example of the use of the method is sketched. © 1995, Sage Publications. All rights reserved. | ["Markíczy L.", "Goldberg J."] | ["6603331302", "36849978200"] | 1,995 | 136 | [] | 10.1177/014920639502100207 | Article | English | [{"id": "60004407", "name": "Crantield University, Cranfield School of Management, Cranfield, Bedfordshire MK43 OAL, United Kingdom", "fullName": "Crantield University, Cranfield School of Management", "reference": "a", "fullAddress": "Cranfield, Bedfordshire MK43 OAL, United Kingdom", "departmentId": null}, {"id": "116710160", "name": "Budapest University, United States", "fullName": "Budapest University", "reference": "b", "fullAddress": "United States", "departmentId": null}] |
1,421 | 79,937 | Synthesis of the Troponoid Natural Product Nezukone Via Sequential Rearrangement of Two Isomeric Precursors | Australian Journal of Chemistry | Nezukone (1) has been synthesized in seven steps from the readily available ख<sup>3</sup>-trinorcarene (4). Key features of the sequence used include formation of the bicyclic isomer (2) of compound (1). Base-promoted isomerization of compound (2) followed by acidic workup then produced the isolable but highly unstable heptafulvenol (3), an extended enolic tautomer of nezukone (1). Under mildly basic conditions compound (3) rearranged to give the natural product (1). The X-ray crystal structure of the ring-fused cyclobutanone (8) is reported. © 1993 ASEG. | ["Banwell M.G.", "Cowden C.J.", "Gravatt M.G.", "Rickard C.E.F."] | ["7005590641", "36878743200", "57189412730", "36902140800"] | 1,993 | 7 | [] | 10.1071/CH9931941 | Article | English | [{"id": "60026553", "name": "School of Chemistry, The University of Melbourne, Parkville, Australia", "fullName": "School of Chemistry, The University of Melbourne", "reference": "a", "fullAddress": "Parkville, Australia", "departmentId": "113301987"}, {"id": "60005686", "name": "Department of Chemistry, The University of Auckland, Private Bag, Auckland, P.O. Box 12-492, New Zealand", "fullName": "Department of Chemistry, The University of Auckland, Private Bag", "reference": "b", "fullAddress": "Auckland, P.O. Box 12-492, New Zealand", "departmentId": "100276131"}] |
1,422 | 79,939 | Classical dirichlet forms on topological vector spaces-the construction of the associated diffusion process | Probability Theory and Related Fields | Given a (minimal) classical Dirichlet form on L<sup>2</sup> (E;μ) we construct the associated diffusion process. Here E is a locally convex topological vector space and μ is a (not necessarily quasi-invariant) probability measure on E. The construction is carried out under certain assumptions on E and μ which can be easily verified in many examples. In particular, we explicitly apply our results to (time-zero and space-time) quantum fields (with or with-out cut-off). © 1989 Springer-Verlag. | ["Albeverio S.", "Röckner M."] | ["7103305116", "7005906394"] | 1,989 | 63 | [] | 10.1007/BF00964372 | Article | English | [{"id": "60005322", "name": "Institut für Mathematik, Ruhr-Universität Bochum, Bochum 1, D-4630, Germany", "fullName": "Institut für Mathematik, Ruhr-Universität Bochum", "reference": "a", "fullAddress": "Bochum 1, D-4630, Germany", "departmentId": "103311600"}, {"id": "60027272", "name": "Department of Mathematics, University of Edinburgh, Edinburgh, EH9 3JZ, United Kingdom", "fullName": "Department of Mathematics, University of Edinburgh", "reference": "b", "fullAddress": "Edinburgh, EH9 3JZ, United Kingdom", "departmentId": "105446990"}] |
1,423 | 79,977 | Linking theorems and applications to semilinear elliptic problems at resonance | Nonlinear Analysis | null | ["e Silva E.A.d.B."] | ["57209858573"] | 1,991 | 106 | ["elliptic problems", "Linking", "minimax methods", "resonance"] | 10.1016/0362-546X(91)90070-H | Article | English | [{"id": "60031482", "name": "Departamento de Matemática, UFPE, 50737 Recife, PEI, Brazil", "fullName": "Departamento de Matemática, UFPE", "reference": "a", "fullAddress": "50737 Recife, PEI, Brazil", "departmentId": "100279385"}] |
1,424 | 80,017 | The ζ-Determinant and script C sign-Determinant on the Grassmannian in Dimension One | Letters in Mathematical Physics | We discuss the relation of the ζ-determinant of the Dirac operator on the interval to the canonical determinant, which appears naturally in this situation. This Letter is a pilot for papers in preparation on the ζ determinant defined on the infinite-dimensional Grassmannian of elliptic boundary problems for a Dirac operator in dimensions greater than one. | ["Booss-Bavnbek B.", "Scott S.G.", "Wojciechowski K.P."] | ["6506560792", "7401504196", "57216028111"] | 1,998 | 4 | ["Atiyah-Patodi-Singer condition", "Calderón projection", "Canonical determinant", "Dirac operator", "Grassmannian of boundary conditions", "Quillen determinant", "ζ-determinant"] | 10.1023/A:1007456629831 | Article | English | [{"id": "60024521", "name": "Institut for Matematik og Fysik, Roskilde University, DK-4000 Roskilde, Denmark", "fullName": "Institut for Matematik og Fysik, Roskilde University", "reference": "a", "fullAddress": "DK-4000 Roskilde, Denmark", "departmentId": null}, {"id": "60012227", "name": "Intl. School for Advanced Studies, Trieste, Italy", "fullName": "Intl. School for Advanced Studies", "reference": "b", "fullAddress": "Trieste, Italy", "departmentId": null}, {"id": "60024609", "name": "Department of Mathematics, IUPUI (Indiana/Purdue), Indianapolis, IN 46202-3216, United States", "fullName": "Department of Mathematics, IUPUI (Indiana/Purdue)", "reference": "c", "fullAddress": "Indianapolis, IN 46202-3216, United States", "departmentId": "104238526"}] |
1,425 | 80,019 | The acquisition of technology and small firms by large firms | Journal of Economic Behavior and Organization | This paper describes how large, typically multi-technology corporations build up and exploit their technological capability by purchasing small, technology-based firms in order to acquire their technology. The frequency, possible causes and economic effects of this phenomenon are elaborated, based on empirical studies of Swedish industry. A new mechanism for trading technology through the trading of small firms among large firms is proposed. © 1990. | ["Granstrand O.", "Sjölander S."] | ["6603230277", "24303897900"] | 1,990 | 158 | [] | 10.1016/0167-2681(90)90006-Y | Article | English | [{"id": "60000990", "name": "Chalmers University of Technology, Gothenburg, S-412 96, Sweden", "fullName": "Chalmers University of Technology", "reference": "a", "fullAddress": "Gothenburg, S-412 96, Sweden", "departmentId": null}] |
1,426 | 80,083 | Nonlocal regularization of L. C. Young's tacking problem | Applied Mathematics & Optimization | L. C. Young's tacking problem is a prototype of a nonconvex variational problem for which minimizing sequences for the energy do not attain a minimum. The "minimizer" of the energy is usually described as a Young-measure or generalized curve. In many studies, the tacking problem is regularized by adding a higher-order "viscosity term" to the energy. This regularized energy has classical minimizers. In this paper we regularize instead with a spatially nonlocal term. This weakly regularized problem still has measure-valued minimizers, but as the nonlocal term becomes stronger, the measure-valued solutions organize, coalesce, and eventually turn into classical solutions. The information on the measure-valued solutions is obtained by studying equivalent variational problems involving moments of the measures. © 1992 Springer-Verlag New York Inc. | ["Brandon D.", "Rogers R.C."] | ["7102384891", "7403530447"] | 1,992 | 20 | [] | 10.1007/BF01182325 | Article | English | [{"id": "60027090", "name": "Department of Mathematics and ICAM, Virginia Polytechnic Institute and State University, Blacksburg, 24061-0123, VA, United States", "fullName": "Department of Mathematics and ICAM, Virginia Polytechnic Institute and State University", "reference": "a", "fullAddress": "Blacksburg, 24061-0123, VA, United States", "departmentId": "104372241"}] |
1,427 | 80,094 | The neural network model RuleNet and its application to mobile robot navigation | Fuzzy Sets and Systems | In this paper the neural network models RuleNet and its extension, Fuzzy RuleNet, are described in detail. RuleNet is a feedforward network model with a supervised learning algorithm, a dynamic architecture and discrete outputs. The main characteristics of RuleNet are its efficient learning and propagation algorithms and the possibility to translate symbolic knowledge into the network and vice versa without loss of information. Fuzzy RuleNet is an extension to RuleNet with Fuzzy Logic. The main application area of this neuro-fuzzy model is fuzzy classification. An important characteristic of Fuzzy RuleNet is the possibility of knowledge transfer into and from the network without loss of information, therefore it can also be used for the generation of fuzzy systems (i.e. fuzzy rules and the corresponding membership functions). RuleNet and Fuzzy RuleNet have been applied to a hierarchic behavior based navigation system for mobile robots. As a first step, a wall following behavior has been implemented utilizing these network models. The achieved results in the simulation environment as well as on a mobile robot experimental platform are very encouraging. Copyright © 1997 Elsevier Science B.V. All rights reserved. | ["Tschichold-Gürman N."] | ["6507960614"] | 1,997 | 34 | ["Decision making", "Neuro-fuzzy systems", "Robotics"] | 10.1016/0165-0114(95)00351-7 | Article | English | [{"id": "60025858", "name": "Institute of Robotics, ETH Zürich, CH 8092 Zürich, Switzerland", "fullName": "Institute of Robotics, ETH Zürich", "reference": "a", "fullAddress": "CH 8092 Zürich, Switzerland", "departmentId": "104313584"}] |
1,428 | 80,129 | Traffic and video quality with adaptive neural compression | Multimedia Systems | Video sequences are major sources of traffic for broadband ISDN networks, and video compression is fundamental to the efficient use of such networks. We present a novel neural method to achieve real-time adaptive compression of video. This tends to maintain a target quality of the decompressed image specified by the user. The method uses a set of compression/decompression neural networks of different levels of compression, as well as a simple motion-detection procedure. We describe the method and present experimental data concerning its performance and traffic characteristics with real video sequences. The impact of this compression method on ATM-cell traffic is also investigated and measurement data are provided. | ["Gelenbe E.", "Sungur M.", "Cramer C.", "Gelenbe P."] | ["7006026729", "7004317179", "36902680800", "6506955681"] | 1,996 | 59 | ["ATM traffic", "Compression/decompression neural networks", "Motion detection"] | 10.1007/s005300050037 | Article | English | [{"id": "60008724", "name": "Department of Electrical Engineering, Duke University, Durham, NC 27708-0291, United States", "fullName": "Department of Electrical Engineering, Duke University", "reference": "a", "fullAddress": "Durham, NC 27708-0291, United States", "departmentId": "113215842"}, {"id": "60004305", "name": "Dept. of Elec. and Electronics Eng., Middle East Technical University, Ankara, Turkey", "fullName": "Dept. of Elec. and Electronics Eng., Middle East Technical University", "reference": "b", "fullAddress": "Ankara, Turkey", "departmentId": "112378739"}, {"id": "112494327", "name": "Ecl. Ctrl. des Arts et Manufactures, Paris, France", "fullName": "Ecl. Ctrl. des Arts et Manufactures", "reference": "c", "fullAddress": "Paris, France", "departmentId": null}, {"id": "60004305", "name": "Middle East Technical University, Ankara, Turkey", "fullName": "Middle East Technical University", "reference": "d", "fullAddress": "Ankara, Turkey", "departmentId": null}, {"id": "60108318", "name": "Polytechnic University, New York, NY, United States", "fullName": "Polytechnic University", "reference": "e", "fullAddress": "New York, NY, United States", "departmentId": null}, {"id": "112955182", "name": "University of Paris", "fullName": "University of Paris", "reference": "f", "fullAddress": null, "departmentId": null}, {"id": "60008724", "name": "Duke University", "fullName": "Duke University", "reference": "g", "fullAddress": null, "departmentId": null}, {"id": null, "name": "Department of Computer Science", "fullName": "Department of Computer Science", "reference": "h", "fullAddress": null, "departmentId": null}, {"id": "60000251", "name": "IEEE", "fullName": "IEEE", "reference": "i", "fullAddress": null, "departmentId": null}, {"id": "60004305", "name": "Dept. of Elec. and Electronics Eng., Middle East Technical University", "fullName": "Dept. of Elec. and Electronics Eng., Middle East Technical University", "reference": "j", "fullAddress": null, "departmentId": "112378739"}, {"id": "60000251", "name": "IEEE, IEEE Computer Society, IEEE Control System Society", "fullName": "IEEE, IEEE Computer Society, IEEE Control System Society", "reference": "k", "fullAddress": null, "departmentId": null}, {"id": "60008724", "name": "Duke University, Durham, NC, United States", "fullName": "Duke University", "reference": "l", "fullAddress": "Durham, NC, United States", "departmentId": null}, {"id": "60007566", "name": "Louisiana State University, Baton Rouge, LA, United States", "fullName": "Louisiana State University", "reference": "m", "fullAddress": "Baton Rouge, LA, United States", "departmentId": null}] |
1,429 | 80,135 | Estimation of the number of jumps of the jump regression functions | Communications in Statistics - Theory and Methods | This paper suggests an estimator of the number of jumps of the jump regression functions. The estimator is based on the difference between right and left one-sided kernel smoothers. It is proved to be a.s. consistent. Some results about its rate of convergence are also provided. © 1994, Taylor & Francis Group, LLC. All rights reserved. | ["Qui P."] | ["7102504660"] | 1,994 | 31 | ["a.s. consistent", "Jump regression junctions", "Kernel smoothers", "Rate of convergence"] | 10.1080/03610929408831378 | Article | English | [{"id": "60032179", "name": "Department of Statistics, University of Wisconsin - Madison, Madison, WI 53706, 1210 West Dayton Street, United States", "fullName": "Department of Statistics, University of Wisconsin - Madison", "reference": "a", "fullAddress": "Madison, WI 53706, 1210 West Dayton Street, United States", "departmentId": "109698521"}] |
1,430 | 80,138 | Spectral theory and generator property for one-sided coupled operator matrices | Semigroup Forum | Many initial value problems like Volterra equations, delay equations or wave equations can be reduced to an abstract Cauchy problem governed by an operator matrix. We introduce a new class of unbounded operator matrices corresponding to these equations and study the spectral theory, compute the adjoint and analyze the generator property of its elements. The abstract results are illustrated by a series of applications. | ["Engel K.-J."] | ["7102242792"] | 1,999 | 43 | [] | 10.1007/s002339900020 | Article | English | [{"id": "60017246", "name": "Mathematisches Institut, Universität Tübingen, D-72076 Tübingen, Auf der Morgenstelle 10, Germany", "fullName": "Mathematisches Institut, Universität Tübingen", "reference": "a", "fullAddress": "D-72076 Tübingen, Auf der Morgenstelle 10, Germany", "departmentId": null}] |
1,431 | 80,225 | Mixed-spin Ising model on the Bethe lattice | Physical Review B | We obtain the phase diagram of a ferromagnetic mixed Ising system, consisting of spin-1/2 and spin-S variables, on a Bethe lattice of coordination number z, with nearest-neighbor exchange interactions and single-ion terms. The problem is formulated as a discrete nonlinear map. There is a tricritical point for S integer and z5. In the infinite-coordination-number limit, we regain the results of an exact calculation for a Curie-Weiss version of the model. © 1991 The American Physical Society. | ["Da Silva N.R.", "Salinas S.R."] | ["22966001900", "7004583498"] | 1,991 | 43 | [] | 10.1103/PhysRevB.44.852 | Article | English | [{"id": "60011324", "name": "Departamento de Física, Universidade Federal da Paraiba, CEP 58059 João Pessoa, PB, Caixa Postal 50059, Brazil", "fullName": "Departamento de Física, Universidade Federal da Paraiba", "reference": "a", "fullAddress": "CEP 58059 João Pessoa, PB, Caixa Postal 50059, Brazil", "departmentId": "103607042"}, {"id": "60008088", "name": "Instituto de Física, Universidade de São Paulo, CEP 01498, São Paulo, SP, Caixa Postal 20516, Brazil", "fullName": "Instituto de Física, Universidade de São Paulo", "reference": "b", "fullAddress": "CEP 01498, São Paulo, SP, Caixa Postal 20516, Brazil", "departmentId": "105429480"}] |
1,432 | 80,295 | Learning, wage dynamics, and firm-specific human capital | Journal of Political Economy | We introduce a dynamic and fully strategic model of wage determination in the presence of firm-specific human capital. In this model, human capital is interpreted as information. We show that equilibrium exists and is efficient and that it gives rise to a unique distribution of the social surplus. We show further that the equilibrium wage is determined by three factors. Consideration of these factors allows us to determine when and how the market mechanism enables the worker to capture some of the returns to firm-specific human capital. We relate our findings to the ongoing empirical debate concerning the return to tenure. | ["Felli L.", "Harris C."] | ["7003920559", "57198580644"] | 1,996 | 62 | [] | 10.1086/262044 | Article | English | [{"id": "60003059", "name": "London School of Economics", "fullName": "London School of Economics", "reference": "a", "fullAddress": null, "departmentId": null}, {"id": "60100632", "name": "King's College, Cambridge, Ont., Canada", "fullName": "King's College", "reference": "b", "fullAddress": "Cambridge, Ont., Canada", "departmentId": null}] |
1,433 | 80,343 | On the Linear Conjecture in the Deterministic and Stochastic Stability of Discrete Systems | IEEE Transactions on Automatic Control | Some generalization of Aizer-man's conjecture for deterministic and stochastic stability of discrete systems is considered in this correspondence. Presented theorems - are concerned with the verification of this conjecture. Copyright © 1968 by The Institute of Electrical and Electronics Engineers, Inc. | ["Bubnicki Z."] | ["56000116300"] | 1,968 | 11 | [] | 10.1109/TAC.1968.1098860 | Article | English | [{"id": "60019987", "name": "Automatic Control Dept, Technical University of Wroclaw, Wroclaw, Poland", "fullName": "Automatic Control Dept, Technical University of Wroclaw", "reference": "a", "fullAddress": "Wroclaw, Poland", "departmentId": "115426577"}] |
1,434 | 80,445 | Plural and multiple small-angle scattering from a screened Rutherford cross section | Nuclear Inst. and Methods in Physics Research, B | The object of this paper is to employ the screened Rutherford cross section to construct a charged-particle multiple-scattering theory that does not suffer from either the small step-size artefact associated with the conventional Molière multiple-scattering distribution or the large step-size instability of the theory of Keil et al. [Z. Naturforsch. 15a (1960) 1031]. An exact numerical solution to the Wentzel elastic-scattering integral is found for charged particle step-sizes less than about 3000 mean-free-paths. The new distribution contains explicitly the expected single and no-scattering distributions in the limit of small step-size, matches the standard Molière distribution for large step-sizes and is expressed in terms of simple functional forms and numerical tables that may be sampled quickly for use in Monte Carlo methods. The new distribution may be expressed entirely in terms of only two parameters - a "reduced" angle and the mean free path. The large-angle limit of the distribution is expressed analytically and compared to the results of Keil et al. and Molière. Despite the fact that the conventional Molière distribution is based upon the assumption that many interactions participate in the development of the multiple-scattering angle, it is found that Molière's large-angle limit is mostly correct although the large-angle behaviour is dominated by one or two interactions! The design of a Monte Carlo electron transport algorithm that incorporates the unique features of the new distribution is discussed. © 1994. | ["Bielajew A.F."] | ["7003647356"] | 1,994 | 26 | [] | 10.1016/0168-583X(94)95288-4 | Article | English | [{"id": "60009839", "name": "Canada", "fullName": null, "reference": "a", "fullAddress": "Canada", "departmentId": "103535330"}] |
1,436 | 80,515 | SSDT: A scalable subspace-splitting classifier for biased data | Proceedings - IEEE International Conference on Data Mining, ICDM | Decision trees are one of the most extensively used data mining models. Recently, a number of efficient, scalable algorithms for constructing decision trees on large disk-resident dataset have been introduced. In this paper, we study the problem of learning scalable decision trees from datasets with biased class distribution. Our objective is to build decision trees that are more concise and more interpretable while maintaining the scalability of the model. To achieve this, our approach searches for subspace clusters of data cases of the biased class to enable multivariate splittings based on weighted distances to such clusters. In order to build concise and interpretable models, other approaches including multivariate decision trees and association rules, often introduce scalability and performance issues. The SSDT algorithm we present achieves the objective without loss in efficiency, scalability, and accuracy. © 2001 IEEE. | ["Wang H.", "Yu P.S."] | ["9733957100", "7402366049"] | 2,001 | 5 | [] | null | Conference Paper | English | [{"id": "60017366", "name": "IBM T. J. Watson Research Center, Yorktown Heights, NY 10598, United States", "fullName": "IBM T. J. Watson Research Center", "reference": "a", "fullAddress": "Yorktown Heights, NY 10598, United States", "departmentId": null}] |
1,437 | 80,522 | Fly view, a Drosophila image database, and other Drosophila databases | Seminars in Cell and Developmental Biology | FlyView is an image database for Drosophila development and genetics, particularly for gene expression patterns. Thousands of enhancer trap lines have now been isolated by different methods, particularly by using a variety of trans posons with the resulting flies being kept in a great many laboratories. We are collecting pictures of expression patterns of all lines that are available for use by Drosophila researchers and now offer about 1800 images of about 350 enhancer trap lines in FlyView. This article also summarizes information on the other main Drosophila resources: FlyBase - the main Drosophila database, Flybrain, an online atlas and database of the Drosophila nervous system, and Interactive Fly, a cyberspace guide to Drosophila genes and their roles in development. | ["Janning W."] | ["6701490027"] | 1,997 | 21 | ["Database", "Drosophila", "Internet", "Pictures", "World Wide Web"] | 10.1006/scdb.1997.0172 | Article | English | [{"id": "60000401", "name": "Inst. fur Allg. Zool. und Genetik, Westfälischen Wilhelms-Univ., D-48149, Münster, Schloßplatz 5, Germany", "fullName": "Inst. fur Allg. Zool. und Genetik, Westfälischen Wilhelms-Univ.", "reference": "a", "fullAddress": "D-48149, Münster, Schloßplatz 5, Germany", "departmentId": "103057909"}] |
1,438 | 80,559 | Interior and boundary peak solutions for a mixed boundary value problem | Indiana University Mathematics Journal | The aim of this paper is to study the effect of the domain topology on the existence of solutions with arbitrarily many peaks in the interior of the domain and arbitrarily many peaks on the boundary of the domain for a singularly perturbed mixed boundary value problem. | ["Dancer E.N.", "Yan S."] | ["7004171796", "7401744723"] | 1,999 | 40 | ["Nonlinear partial differential equations", "Small diffusion"] | 10.1512/iumj.1999.48.1827 | Article | English | [] |
1,439 | 80,746 | Microorganisms from the gunflint chert | Science | These structurally preserved Precambrian fossils from Ontario are the most ancient organisms known. | ["Barghoorn E.S.", "Tyler S.A."] | ["6505847679", "55343489500"] | 1,965 | 408 | [] | 10.1126/science.147.3658.563 | Article | English | [{"id": "60009982", "name": "Department of Botany, Botanical Museum, Harvard University, Cambridge, MA, United States", "fullName": "Department of Botany, Botanical Museum, Harvard University", "reference": "a", "fullAddress": "Cambridge, MA, United States", "departmentId": "105288991"}] |
1,440 | 80,761 | Modulo scheduling with reduced register pressure | IEEE Transactions on Computers | Software pipelining is a scheduling technique that is used by some product compilers in order to expose more instruction level parallelism out of innermost loops. Modulo scheduling refers to a class of algorithms for software pipelining. Most previous research on modulo scheduling has focused on reducing the number of cycles between the initiation of consecutive iterations (which is termed //) but has not considered the effect of the register pressure of the produced schedules. The register pressure increases as the instruction level parallelism increases. When the register requirements of a schedule are higher than the available number of registers, the loop must be rescheduled perhaps with a higher //. Therefore, the register pressure has an important impact on the performance of a schedule. This paper presents a novel heuristic modulo scheduling strategy that tries to generate schedules with the lowest //, and, from all the possible schedules with such //, it tries to select that with the lowest register requirements. The proposed method has been implemented in an experimental compiler and has been tested for the Perfect Club benchmarks. The results show that the proposed method achieves an optimal // for at least 97.5 percent of the loops and its compilation time is comparable to a conventional top-down approach, whereas the register requirements are lower. In addition, the proposed method is compared with some other existing methods. The results indicate that the proposed method performs better than other heuristic methods and almost as well as linear programming methods, which obtain optimal solutions but are impractical for product compilers because their computing cost grows exponentially with the number of operations in the loop body. © 1998 IEEE. | ["Llosa J.", "Valero M.", "Ayguadé E.", "González A."] | ["7003466550", "24475914200", "7003451410", "58587126700"] | 1,998 | 0 | ["Instruction scheduling", "Loop scheduling", "Register allocation", "Register spilling", "Software pipelining"] | 10.1109/12.689643 | Article | English | [{"id": "60000251", "name": "IEEE, Spain", "fullName": "IEEE", "reference": "a", "fullAddress": "Spain", "departmentId": null}, {"id": "60000251", "name": "IEEE Computer Society, Spain", "fullName": "IEEE Computer Society", "reference": "b", "fullAddress": "Spain", "departmentId": null}, {"id": "60007592", "name": "Departament d'Arquitectura de Computadors, Universitat Politècnica de Catalunya, Barcelona, Spain", "fullName": "Departament d'Arquitectura de Computadors, Universitat Politècnica de Catalunya", "reference": "c", "fullAddress": "Barcelona, Spain", "departmentId": "104962199"}] |
1,441 | 80,970 | A Photochemical Approach to the Fully Functionalized Ring System of Chilinene, a Key Alkaloid of the Berberine Family | Tetrahedron Letters | The fully functionalized ring system of the berberine alkaloid chilinene has been prepared in a seven step synthesis. Key steps in the synthesis are the photocyclization of an imide-thioether and the oxidative formation with Pb(OAc)<sub>4</sub> of a novel hexacyclic orthoester which led directly to the desired product. © 1987. | ["Mazzocchi P.H.", "King C.R.", "Ammon H.L."] | ["6701655792", "24428549900", "57194225692"] | 1,987 | 27 | [] | 10.1016/S0040-4039(00)95444-3 | Article | English | [{"id": "60020304", "name": "Department of Chemistry, Biochemistry University of Maryland, College Park, MD 20742, United States", "fullName": "Department of Chemistry, Biochemistry University of Maryland", "reference": "a", "fullAddress": "College Park, MD 20742, United States", "departmentId": "100251417"}] |
1,442 | 80,980 | Correlation found between the HOMO-LUMO energy separation and the chemical reactivity at the most reactive site for isolated-pentagon isomers of fullerenes | Physical Chemistry Chemical Physics | For isolated-pentagon isomers of fullerenes with up to 90 carbon atoms, the HOMO-LUMO energy separation is closely associated with the chemical reactivity at the most reactive site of the molecule. To be exact, the T value correlates very well with the minimum bond resonance energy (min BRE). Here, the T value is the HOMO-LUMO energy separation multiplied by the number of carbon atoms, and the min BRE is the minimum bond resonance energy in the molecule. This correlation explicitly shows that an isolated-pentagon fullerene isomer with chemically reactive substructures in general has a small HOMO-LUMO gap energy. | ["Aihara J.-I."] | ["7007166179"] | 2,000 | 96 | [] | 10.1039/b002601h | Article | English | [{"id": "60103680", "name": "Department of Chemistry, Faculty of Science, Shizuoka University, Oya, Shizuoka 422-8529, Japan", "fullName": "Department of Chemistry, Faculty of Science, Shizuoka University", "reference": "a", "fullAddress": "Oya, Shizuoka 422-8529, Japan", "departmentId": "109957719"}] |
1,443 | 80,996 | A polynomial-time approximation scheme for maximizing the minimum machine completion time | Operations Research Letters | We consider the problem of assigning a set of n jobs to a system of m identical parallel machines so as to maximize the earliest machine completion time (without using idle times). This problem has applications in the sequencing of maintenance actions for modular gas turbine aircraft engines. Up to now, only approximation algorithms were known whose worst case ratio was bounded strictly away from one. In this note, we derive the first polynomial-time approximation scheme for this problem. The time complexity of our algorithms is O(cεn log m), where cε is a constant that depends on the desired precision ε. © 1997 Elsevier Science B.V. | ["Woeginger G.J."] | ["7006428435"] | 1,997 | 133 | ["Approximation algorithm", "Approximation scheme", "Scheduling", "Worst-case analysis"] | 10.1016/s0167-6377(96)00055-7 | Article | English | [{"id": "60019663", "name": "Institut für Mathematik, Graz University of Technology, A-8010 Graz, Steyrergasse 30, Austria", "fullName": "Institut für Mathematik, Graz University of Technology", "reference": "a", "fullAddress": "A-8010 Graz, Steyrergasse 30, Austria", "departmentId": "112389515"}] |
1,444 | 81,095 | Convergent and asymptotic iteration methods in General Relativity | Communications in Mathematical Physics | We show that the fast motion iteration method in General Relativity gives an asymptotic approximation to exact solutions of the reduced Einstein equations. Rigorous estimates of the error commited at each step of the iteration are derived. © 1979 Springer-Verlag. | ["Christodoulou D.", "Schmidt B.G."] | ["57214607320", "16511007400"] | 1,979 | 18 | [] | 10.1007/BF01221128 | Article | English | [{"id": "60074065", "name": "Max-Planck-Institut für Physik und Astrophysik, München 40, D-8000, Germany", "fullName": "Max-Planck-Institut für Physik und Astrophysik", "reference": "a", "fullAddress": "München 40, D-8000, Germany", "departmentId": null}] |
1,445 | 81,141 | A domain decomposition and overlapping method for the generation of three-dimensional boundary-fitted coordinate systems | Journal of Computational Physics | A new method is presented for numerically generating boundary-fitted coordinate systems for arbitrarily shaped three-dimensional regions. In the method, the three-dimensional region of interest is decomposed into several hexahedrons, each of which has two grid surfaces overlapped with each of the neighboring hexahedrons. Based on this method, a new computer program GRID-3D has been developed, which allows the generation of an unlimitted number of different types of coordinate systems. Application to a variety of geometries confirms that GRID-3D is a convenient and efficient tool in the generation of boundary-fitted coordinate systems even for a considerably complicated configuration consisting of many different components. © 1984. | ["Miki K.", "Takagi T."] | ["54780355500", "57216606280"] | 1,984 | 30 | [] | 10.1016/0021-9991(84)90044-5 | Article | English | [{"id": "60003381", "name": "Energy Research Laboratorv, Hitachi Ltd. 1168, Hitachi-shi, Ibaraki, 316, Moriyama-cho, Japan", "fullName": "Energy Research Laboratorv, Hitachi Ltd. 1168", "reference": "a", "fullAddress": "Hitachi-shi, Ibaraki, 316, Moriyama-cho, Japan", "departmentId": "106026052"}] |
1,446 | 81,164 | Superlinear and quadratic convergence of primal-dual interior-point methods for linear programming revisited | Journal of Optimization Theory and Applications | Recently, Zhang, Tapia, and Dennis (Ref. 1) produced a superlinear and quadratic convergence theory for the duality gap sequence in primal-dual interior-point methods for linear programming. In this theory, a basic assumption for superlinear convergence is the convergence of the iteration sequence; and a basic assumption for quadratic convergence is nondegeneracy. Several recent research projects have either used or built on this theory under one or both of the above-mentioned assumptions. In this paper, we remove both assumptions from the Zhang-Tapia-Dennis theory. © 1992 Plenum Publishing Corporation. | ["Zhang Y.", "Tapia R.A."] | ["55949826500", "7103257800"] | 1,992 | 20 | ["Linear programming", "primal-dual interior-point algorithms", "quadratic convergence", "superlinear convergence"] | 10.1007/BF00940179 | Article | English | [{"id": "60024997", "name": "Department of Mathematics and Statistics, University of Maryland, Baltimore County Campus, Baltimore, Maryland, United States", "fullName": "Department of Mathematics and Statistics, University of Maryland, Baltimore County Campus", "reference": "a", "fullAddress": "Baltimore, Maryland, United States", "departmentId": "105340227"}, {"id": "60005286", "name": "Department of Mathematical Sciences and Center for Research in Parallel Computation, Rice University, Houston, Texas, United States", "fullName": "Department of Mathematical Sciences and Center for Research in Parallel Computation, Rice University", "reference": "b", "fullAddress": "Houston, Texas, United States", "departmentId": "103308332"}] |
1,447 | 81,171 | Isolated hard photon emission in hadronic Z<sup>0</sup> decays | Physics Letters B | We report on a study of energetic, isolated photons in a sample of ∼ 320 000 Z<sup>0</sup> hadronic decays. Energetic isolated photons probe the short-distance structure of QCD. We compare our data with the prediction of several QCD-based calculations. A search for new processes with one or two photons in the hadronic final state is also presented. No evidence for physics beyond the standard model is found. © 1992. | ["Adriani O.", "Aguilar-Benitez M.", "Ahlen S.", "Akbari H.", "Alcaraz J.", "Aloisio A.", "Alverson G.", "Alviggi M.G.", "Ambrosi G.", "An Q.", "Anderhub H.", "Anderson A.L.", "Andreev V.P.", "Angelov T.", "Antonov L.", "Abtreasyan D.", "Arce P.", "Arefiev A.", "Atamanchuk A.", "Azemoon T.", "Aziz T.", "Baba P.V.K.S.", "Bagnaia P.", "Bakken J.A.", "Baksay L.", "Ball R.C.", "Banerjee S.", "Bao J.", "Barillère R.", "Barone L.", "Nattiston R.", "Bay A.", "Becattini F.", "Becker U.", "Behner F.", "Behrens J.", "Beingessner S.", "Bencze Gy.L.", "Berdugo J.", "Berges P.", "Bertucci B.", "Betev B.L.", "Biasini M.", "Biland A.", "Bilei G.M.", "Bizzarri R.", "Blaising J.J.", "Blumenfeld B.", "Bobbink G.J.", "Bocciolini M.", "Bock R.", "Böhm A.", "Borgia B.", "Bourilkov D.", "Bourquin M.", "Boutigny D.", "Bouwens B.", "Brambilla E.", "Branson J.G.", "Brock I.C.", "Brooks M.", "Buisson C.", "Bujak A.", "Burger J.D.", "Burger W.J.", "Burq J.P.", "Busenitz J.", "Cai X.D.", "Capell M.", "Caria M.", "Carlino G.", "Carminati F.", "Cartacci A.M.", "Cerrada M.", "Cesaroni F.", "Chang Y.H.", "Chaturvedi U.K.", "Chemarin M.", "Chen A.", "Chen C.", "Chen G.M.", "Chen H.F.", "Chen H.S.", "Chen J.", "Chen M.", "Chen M.L.", "Chen W.Y.", "Chiefari G.", "Chien C.Y.", "Chmeissani M.", "Chung S.", "Civinini C.", "Clare I.", "Clare R.", "Coan T.E.", "Cohn H.O.", "Coignet G.", "Colino N.", "Contin A.", "Crijns F.", "Cui X.T.", "Cui X.Y.", "Dai T.S.", "D'Alessandro R.", "de Asmundis R.", "Degré A.", "Deiters K.", "Dénes E.", "Denes P.", "DeNotaristefani F.", "Dhina M.", "DiBitonto D.", "Diemoz M.", "Dimitrov H.R.", "Dionisi C.", "Dova M.T.", "Drago E.", "Driever T.", "Duchesneau D.", "Duinker P.", "Duran I.", "El Mamouni H.", "Engler A.", "Eppling F.J.", "Erné F.C.", "Extermann P.", "Fabbretti R.", "Fabre M.", "Falciano S.", "Fan S.J.", "Fackler O.", "Fay J.", "Felcini M.", "Ferguson T.", "Fernandez D.", "Fernandez G.", "Ferroni F.", "Fesefeldt H.", "Fiandrini E.", "Field J.", "Filthaut F.", "Finocchiaro G.", "Fisher P.H.", "Forconi G.", "Foreman T.", "Freudenreich K.", "Friebel W.", "Fukushima M.", "Gailloud M.", "Galaktionov Yu.", "Gallo E.", "Ganguli S.N.", "Garcia-Abia P.", "Gau S.S.", "Gele D.", "Gentile S.", "Goldfarb S.", "Gong Z.F.", "Gonzalez E.", "Göttlicher P.", "Gougas A.", "Goujon D.", "Gratta G.", "Grinnell C.", "Gruenewald M.", "Gu C.", "Guanziroli M.", "Guo J.K.", "Gupta V.K.", "Gurtu A.", "Gustafson H.R.", "Gutay L.J.", "Hangarter K.", "Hasan A.", "Hauschildt D.", "He C.F.", "Hebbeker T.", "Hebert M.", "Herten G.", "Herten U.", "Hervé A.", "Hilgers K.", "Hofer H.", "Hoorani H.", "Hu G.", "Hu G.Q.", "Ille B.", "Ilyas M.M.", "Innocente V.", "Janssen H.", "Jezequel S.", "Jin B.N.", "Jones L.W.", "Kasser A.", "Khan R.A.", "Kamyshkov Yu.", "Kapinos P.", "Kapustinsky J.S.", "Karyotakis Y.", "Kaur M.", "Khokhar S.", "Kienzle-Focacci M.N.", "Kinnison W.W.", "Kirkby D.", "Kirsch S.", "Kittel 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Physics Institute", "reference": "l", "fullAddress": "St. Petersburg, Russian Federation", "departmentId": null}, {"id": "60024147", "name": "Bulgarian Academy of Sciences, Institute of Mechatronics, BU-1113 Sofia, Bulgaria", "fullName": "Bulgarian Academy of Sciences, Institute of Mechatronics", "reference": "m", "fullAddress": "BU-1113 Sofia, Bulgaria", "departmentId": "104220202"}, {"id": "60114720", "name": "INFN - Sezione di Bologna, I-40126 Bologna, Italy", "fullName": "INFN - Sezione di Bologna", "reference": "n", "fullAddress": "I-40126 Bologna, Italy", "departmentId": null}, {"id": "60018710", "name": "Institute of Theoretical and Experimental Physics, ITEP, 117 259 Moscow, Russian Federation", "fullName": "Institute of Theoretical and Experimental Physics, ITEP", "reference": "o", "fullAddress": "117 259 Moscow, Russian Federation", "departmentId": null}, {"id": "60025778", "name": "University of Michigan, Ann Arbor, MI 48109, United States", "fullName": "University of Michigan", "reference": "p", "fullAddress": "Ann Arbor, MI 48109, United States", "departmentId": null}, {"id": "60031855", "name": "Tata Institute of Fundamental Research, Bombay, 400 005, India", "fullName": "Tata Institute of Fundamental Research", "reference": "q", "fullAddress": "Bombay, 400 005, India", "departmentId": null}, {"id": "60016653", "name": "I. Physikalisches Institut, RWTH, W-5100 Aachen, FRG2 2 Supported by the German Bundesministerium für Forschung und Technologie.", "fullName": null, "reference": "r", "fullAddress": null, "departmentId": null}, {"id": "60016653", "name": "Germany", "fullName": null, "reference": "s", "fullAddress": "Germany", "departmentId": null}, {"id": "60021660", "name": "INFN - Sezione, Roma amd Università di Roma La Sapienza, I-00185 Rome, Italy", "fullName": "INFN - Sezione, Roma amd Università di Roma La Sapienza", "reference": "t", "fullAddress": "I-00185 Rome, Italy", "departmentId": null}, {"id": "60003269", "name": "Princeton University, Princeton, NJ 08544, United States", "fullName": "Princeton University", "reference": "u", "fullAddress": "Princeton, NJ 08544, United States", "departmentId": null}, {"id": "60025371", "name": "University of Alabama, Tuscaloosa, AL 35486, United States", "fullName": "University of Alabama", "reference": "v", "fullAddress": "Tuscaloosa, AL 35486, United States", "departmentId": null}, {"id": "60004718", "name": "University of Geneva, CH-1211 Geneva 4, Switzerland", "fullName": "University of Geneva", "reference": "w", "fullAddress": "CH-1211 Geneva 4, Switzerland", "departmentId": null}, {"id": "60025171", "name": "Laboratoire de Physique des Particules, LAPP, F-74941 Annecy-le-Vieux, France", "fullName": "Laboratoire de Physique des Particules, LAPP", "reference": "x", "fullAddress": "F-74941 Annecy-le-Vieux, France", "departmentId": null}, {"id": "60003548", "name": "Central Research Institute for Physics, the Hungarian Academy of Sciences, H-1525 Budapest 114, Hungary", "fullName": "Central Research Institute for Physics, the Hungarian Academy of Sciences", "reference": "y", "fullAddress": "H-1525 Budapest 114, Hungary", "departmentId": "104409818"}, {"id": "60023824", "name": "National Institute for High Energy Physics, NIKHEF, NL-1009 DB Amsterdam, Netherlands", "fullName": "National Institute for High Energy Physics, NIKHEF", "reference": "z", "fullAddress": "NL-1009 DB Amsterdam, Netherlands", "departmentId": null}, {"id": "60023824", "name": "University of Nijmegen, NIKHEF, NL-6525 ED Nijmegen, Netherlands", "fullName": "University of Nijmegen, NIKHEF", "reference": "aa", "fullAddress": "NL-6525 ED Nijmegen, Netherlands", "departmentId": null}, {"id": "60030612", "name": "University of California, San Diego, CA 92182, United States", "fullName": "University of California", "reference": "ab", "fullAddress": "San Diego, CA 92182, United States", "departmentId": null}, {"id": "60027950", "name": "Carnegie Mellon University, Pittsburgh, PA 15213, United States", "fullName": "Carnegie Mellon University", "reference": "ac", "fullAddress": "Pittsburgh, PA 15213, United States", "departmentId": null}, {"id": "60006164", "name": "Los Alamos National Laboratory, Los Alamos, NM 87544, United States", "fullName": "Los Alamos National Laboratory", "reference": "ad", "fullAddress": "Los Alamos, NM 87544, United States", "departmentId": null}, {"id": "60025995", "name": "Institut de Physique Nucléaire de Lyon, IN2P3-CNRS/Université Claude Bernard, F-69622 Villeurbanne Cedex, France", "fullName": "Institut de Physique Nucléaire de Lyon, IN2P3-CNRS/Université Claude Bernard", "reference": "ae", "fullAddress": "F-69622 Villeurbanne Cedex, France", "departmentId": null}, {"id": "60009254", "name": "Purdue University, West Lafayette, IN 47907, United States", "fullName": "Purdue University", "reference": "af", "fullAddress": "West Lafayette, IN 47907, United States", "departmentId": null}, {"id": "60026175", "name": "Lawrence Livermore National Laboratory, Livermore, CA 94550, United States", "fullName": "Lawrence Livermore National Laboratory", "reference": "ag", "fullAddress": "Livermore, CA 94550, United States", "departmentId": null}, {"id": "100318508", "name": "High Energy Physics Group, Taiwan", "fullName": "High Energy Physics Group", "reference": "ah", "fullAddress": "Taiwan", "departmentId": null}, {"id": "60027631", "name": "Institute of High Energy Physics, IHEP, Beijing, China", "fullName": "Institute of High Energy Physics, IHEP", "reference": "ai", "fullAddress": "Beijing, China", "departmentId": null}, {"id": "60019118", "name": "China", "fullName": null, "reference": "aj", "fullAddress": "China", "departmentId": null}, {"id": "60024266", "name": "Oak Ridge National Laboratory, Oak Ridge, TN 37830, United States", "fullName": "Oak Ridge National Laboratory", "reference": "ak", "fullAddress": "Oak Ridge, TN 37830, United States", "departmentId": null}, {"id": "60028419", "name": "Departamento de Fisica de Particulas Elementales, Universidad de Santiago, E-15706 Santiago de Compostela, Spain", "fullName": "Departamento de Fisica de Particulas Elementales, Universidad de Santiago", "reference": "al", "fullAddress": "E-15706 Santiago de Compostela, Spain", "departmentId": "104439361"}, {"id": "60020195", "name": "Paul Scherrer Institut, PSI, CH-5232 Villigen, Switzerland", "fullName": "Paul Scherrer Institut, PSI", "reference": "am", "fullAddress": "CH-5232 Villigen, Switzerland", "departmentId": null}, {"id": "60020044", "name": "Shanghai Institute of Ceramics, SIC, Shanghai, China", "fullName": "Shanghai Institute of Ceramics, SIC", "reference": "an", "fullAddress": "Shanghai, China", "departmentId": null}, {"id": "60030635", "name": "DESY-Institut für Hochenergiephysik, O- 1615 Zeuthen, Germany", "fullName": "DESY-Institut für Hochenergiephysik", "reference": "ao", "fullAddress": "O- 1615 Zeuthen, Germany", "departmentId": null}, {"id": "60000239", "name": "University of Lausanne, CH-1015 Lausanne, Switzerland", "fullName": "University of Lausanne", "reference": "ap", "fullAddress": "CH-1015 Lausanne, Switzerland", "departmentId": null}, {"id": "60031581", "name": "California Institute of Technology, Pasadena, CA 91125, United States", "fullName": "California Institute of Technology", "reference": "aq", "fullAddress": "Pasadena, CA 91125, United States", "departmentId": null}, {"id": "60009982", "name": "Harvard University, Cambridge, MA 02139, United States", "fullName": "Harvard University", "reference": "ar", "fullAddress": "Cambridge, MA 02139, United States", "departmentId": null}, {"id": "60071343", "name": "Department of Natural Sciences, University of Cyprus, Nicosia, Cyprus", "fullName": "Department of Natural Sciences, University of Cyprus", "reference": "as", "fullAddress": "Nicosia, Cyprus", "departmentId": "109934294"}, {"id": "60028229", "name": "University of Hamburg, W-2000 Hamburg, Germany", "fullName": "University of Hamburg", "reference": "at", "fullAddress": "W-2000 Hamburg, Germany", "departmentId": null}] |
1,448 | 81,199 | Computing p-values for the generalized Durbin-Watson and other invariant test statistics | Journal of Econometrics | Shively, Ansley, and Kohn (1990) give an O(n) algorithm for computing the p-values of the Durbin-Watson and other invariant test statistics in time series regression. They do so by evaluating the characteristic function of a quadratic form in standard normal random variables and then numerically inverting it. In this paper we obtain a new expression for the characteristic function which simplifies the handling of the independent regressors and so is easier to evaluate. We also obtain general, easily computable bounds on the integration and truncation errors which arise in the numerical inversion of the characteristic function. Empirical results are presented on the speed and accuracy of our algorithm. © 1992. | ["Ansley C.F.", "Kohn R.", "Shively T.S."] | ["6602772437", "36004205900", "6603724032"] | 1,992 | 17 | [] | 10.1016/0304-4076(92)90109-5 | Article | English | [{"id": "60005686", "name": "University of Auckland, Auckland, New Zealand", "fullName": "University of Auckland", "reference": "a", "fullAddress": "Auckland, New Zealand", "departmentId": null}, {"id": "60028333", "name": "University of New South Wales, Kensington, NSW 2033, Australia", "fullName": "University of New South Wales", "reference": "b", "fullAddress": "Kensington, NSW 2033, Australia", "departmentId": null}, {"id": "60013372", "name": "University of Texas at Austin, Austin, TX 78712, United States", "fullName": "University of Texas at Austin", "reference": "c", "fullAddress": "Austin, TX 78712, United States", "departmentId": null}] |
1,449 | 81,226 | Does K-selection imply prudent predation? | Theoretical Population Biology | Competition models are derived from predator-prey models. The population parameters r and K are thus expressed as composites of quantities measuring properties of the individual. This enables us to show that the idea that K-selection maximizes K is not valid as a general principle and is equivalent to asserting that selection on predators leads to prudent predation. Models of density-dependent selection, which predict maximization of K, implicitly assume no evolution of hunting efficiency. A valid general principle instead states that K-selection minimizes the equilibrium density of prey or food resource. It is then shown that the phenotypic profiles of r- and K-selected organisms are often identical. They diverge only if there are genetic constraints of a particular kind between the various evolving traits. Furthermore, divergence is in opposite direction to that which is commonly expected. © 1984. | ["Matessi C.", "Gatto M."] | ["6601967285", "7006490979"] | 1,984 | 19 | [] | 10.1016/0040-5809(84)90014-5 | Article | English | [{"id": "60021199", "name": "Istituto di Genetica Biochimica ed Evoluzionistica, CNR, 27100 Pavia, Via S. Epifanio 14, Italy", "fullName": "Istituto di Genetica Biochimica ed Evoluzionistica, CNR", "reference": "a", "fullAddress": "27100 Pavia, Via S. Epifanio 14, Italy", "departmentId": "104075138"}, {"id": "60023256", "name": "Dipartimento di Elettronica, Politecnico di Milano, 20133 Milan, Via Ponzio 34/5, Italy", "fullName": "Dipartimento di Elettronica, Politecnico di Milano", "reference": "b", "fullAddress": "20133 Milan, Via Ponzio 34/5, Italy", "departmentId": "104181898"}] |
1,450 | 81,367 | Some problems with extended inflation | Physical Review D | The recently proposed extended inflation scenario is examined. Upper bounds on the Brans-Dicke parameter are obtained by requiring that the recovery from the supercooled regime be such that the presently observed Universe could have emerged. These bounds are well below the present-day experimental limits, implying that one must use models which have a potential to fix the present value of the Brans-Dicke-like scalar field. The implications for extended inflation in such models are discussed. © 1989 The American Physical Society. | ["Weinberg E.J."] | ["7102858085"] | 1,989 | 184 | [] | 10.1103/PhysRevD.40.3950 | Article | English | [{"id": "60030162", "name": "Physics Department, Columbia University, New York, NY 10027, United States", "fullName": "Physics Department, Columbia University", "reference": "a", "fullAddress": "New York, NY 10027, United States", "departmentId": "104523991"}] |
1,451 | 81,399 | Representations for eigenfunctions of expected value operators in the Wishart distribution | Statistics and Probability Letters | Recent articles by Kushner and Meisner (1980) and Kushner, Lebow and Meisner (1981) have posed the problem of characterising the 'EP' functions f(S) for which Ef(S) for which E(f(S)) = λ<sub>n</sub>f(Σ) for some λ<sub>n</sub> ε{lunate} R, whenever the m × m matrix S has the Wishart distribution W(m, n, Σ). In this article we obtain integral representations for all nonnegative EP functions. It is also shown that any bounded EP function is harmonic, and that EP polynomials may be used to approximate the functions in certain L<sup>p</sup> spaces. © 1983. | ["Richards D."] | ["7401578938"] | 1,983 | 2 | ["eigenfunctions", "expectation operator", "harmonic function", "homogeneous function", "Wishart matrix", "zonal polynomials"] | 10.1016/0167-7152(83)90062-7 | Article | English | [{"id": "60025111", "name": "Department of Statistics, University of North Carolina at Chapel Hill, Chapel Hill, NC 27514, United States", "fullName": "Department of Statistics, University of North Carolina at Chapel Hill", "reference": "a", "fullAddress": "Chapel Hill, NC 27514, United States", "departmentId": "100242139"}] |
1,452 | 81,426 | Tool condition monitoring in metal cutting: A neural network approach | Journal of Intelligent Manufacturing | This paper discusses the application of neural network-based pattern recognition techniques for monitoring the metal-cutting process. The specific application considered is in-process monitoring of the condition of the cutting tool. Tool condition monitoring is an important prerequisite for successful automation of the metal cutting process. In this paper, we demonstrate the application of supervised and unsupervised neural network paradigms to pattern recognition of sensor signal features. The supervised technique used is backpropagation and the unsupervised technique used is adaptive resonance theory (ART). The results support the premise that, despite excellent classification accuracy by both networks, the unsupervised system holds greater promise in a real world setting. The advantages are discussed and a framework for exploiting them in tool condition monitoring systems is presented. © 1991 Chapman & Hall. | ["Burke L.I.", "Rangwala S."] | ["7102048603", "7003365862"] | 1,991 | 48 | ["adaptive resonance", "back-propagation", "neural network applications", "Tool condition monitoring"] | 10.1007/BF01471175 | Article | English | [{"id": "60000060", "name": "Department of Industrial Engineering, Lehigh University, Bethlehem, 18015, PA, United States", "fullName": "Department of Industrial Engineering, Lehigh University", "reference": "a", "fullAddress": "Bethlehem, 18015, PA, United States", "departmentId": "103037171"}, {"id": "60021378", "name": "AT and T Bell Laboratories, Sotid State Technology Center, Breinigsville, 18031, PA, United States", "fullName": "AT and T Bell Laboratories, Sotid State Technology Center", "reference": "b", "fullAddress": "Breinigsville, 18031, PA, United States", "departmentId": "117959029"}] |
1,453 | 81,481 | Building material characterization from complex transmissivity measurements at 5.8 GHz | IEEE Transactions on Antennas and Propagation | In this letter, an improvement of the well-known internal multireflection model of transmission coefficients is proposed in order to obtain better agreement with complex measured data. The reason for the introduced changes is explained. To obtain the data, measurements were performed at 5.8 GHz using a vector network analyzer, which provided information on the amplitude and phase of the transmission coefficient. By comparing the model and measurements, both the real and imaginary parts of the material complex permittivity were estimated for four different building materials. © 2000 IEEE. | ["Cuiñas I.", "Sánchez M.G."] | ["6603851742", "7401473966"] | 2,000 | 39 | ["Dielectric materials", "Electromagnetic scattering", "Permittivity measurement", "Urban propagation"] | 10.1109/8.884501 | Article | English | [{"id": "60026134", "name": "Department Tecnoloxías das Comunicacións, Campus Universitario S/n, Universidade de Vigo, E36200 Vigo, Spain", "fullName": "Department Tecnoloxías das Comunicacións, Campus Universitario S/n, Universidade de Vigo", "reference": "a", "fullAddress": "E36200 Vigo, Spain", "departmentId": "104328181"}] |
1,454 | 81,488 | Solving the discretized timeâindependent Schrödinger equation with the Lanczos procedure | Journal of Chemical Physics | A new method is presented to find bound state solutions of the oneâ, twoâ, or threeâdimensional Schrödinger equation. The equation is turned into a sparse matrix eigenvalue problem by representing the potential energy surface and the wave function on a grid. The Laplacian is represented by a high (10th) order finite difference formula. Eigenvalues are found by the Lanczos procedure [J. Cullum and R. A. Willoughby, J. Comp. Phys. 44, 329 (1981)] and transition probabilities (FranckâCondon factors) are found by the recursive residue generation method [A. Nauts and R. E. Wyatt, Phys. Rev. Lett. 51, 2238 (1983)]. Examples are given for the 1D Morse oscillator and the 2D HénonâHeiles potential. Numerical convergence can be checked easily and highly accurate results can be obtained. The algorithm is fast, easy to implement, and vectorizable. © 1990, American Institute of Physics. All rights reserved. | ["Groenenboom G.C.", "Buck H.M."] | ["6701311997", "24524524500"] | 1,990 | 25 | ["ALGORITHMS", "EIGENVALUES", "LAPLACIAN", "NUMERICAL SOLUTION", "SCHROEDINGER EQUATION", "TRANSITION PROBABILITIES"] | 10.1063/1.458575 | Article | English | [{"id": "60032882", "name": "Department of Organic Chemistry, Eindhoven University of Technology, 5600 MB Eindhoven, P.O. Box 513, Netherlands", "fullName": "Department of Organic Chemistry, Eindhoven University of Technology", "reference": "a", "fullAddress": "5600 MB Eindhoven, P.O. Box 513, Netherlands", "departmentId": "105278780"}] |
1,455 | 81,573 | Integrated-optic polarization controller with unlimited transformation range | Applied Physics Letters | We demonstrate a novel waveguide polarization controller that allows endless transformations from any varying general input polarization state into any varying general output state. The electro-optic controller is implemented in lithium niobate and produces adjustable elliptical birefringence of constant total phase retardation via three independent drive voltages. We show that it allows fast and reset-free automatic polarization control using an entirely analog feedback circuit that derives its error signal from the intensity in the prescribed output polarization. | ["Heismann F.", "Divino M.D.", "Buhl L.L."] | ["7004391933", "6603051228", "7005721959"] | 1,990 | 13 | [] | 10.1063/1.103387 | Article | English | [{"id": "60014300", "name": "AT and T Bell Laboratories, Holmdel, NJ 07733, Crawfords Corner Road, United States", "fullName": "AT and T Bell Laboratories", "reference": "a", "fullAddress": "Holmdel, NJ 07733, Crawfords Corner Road, United States", "departmentId": null}] |
1,456 | 81,585 | Asymptotically fast solution of toeplitz and related systems of linear equations | Linear Algebra and Its Applications | We present an inversion algorithm for the solution of a generic N X N Toeplitz system of linear equations with computational complexity O(Nlog<sup>2</sup>N) and storage requirements O(N). The algorithm relies upon the known structure of Toeplitz matrices and their inverses and achieves speed through a doubling method. All the results are derived and stated in terms of the recent concept of displacement rank, and this is used to extend the scope of the algorithm to include a wider class of matrices than just Toeplitz and also to include block Toeplitz matrices. © 1980. | ["Bitmead R.R.", "Anderson B.D.O."] | ["7005950247", "7404263205"] | 1,980 | 167 | [] | 10.1016/0024-3795(80)90161-5 | Article | English | [{"id": "60019870", "name": "Department of Electrical, Electronic Engineering James Cook University Queensland, 4811, Australia", "fullName": "Department of Electrical, Electronic Engineering James Cook University Queensland", "reference": "a", "fullAddress": "4811, Australia", "departmentId": "104012629"}, {"id": "60010571", "name": "Department of Electrical Engineering The University of Newcastle, NSW 2308, Australia", "fullName": "Department of Electrical Engineering The University of Newcastle", "reference": "b", "fullAddress": "NSW 2308, Australia", "departmentId": null}] |
1,457 | 81,613 | Paired comparison, triple comparison, and ranking experiments as generalized linear models, and their implementation on GLIM | Psychometrika | A wide variety of paired comparison, triple comparison, and ranking experiments may be viewed as generalized linear models. These include paired comparison models based on both the Bradley-Terry and Thurstone-Mosteller approaches, as well as extensions of these models that allow for ties, order of presentation effects, and the presence of covariates. Moreover, the triple comparison model of Pendergrass and Bradley, as well as models for complete rankings of more than three items, can also be represented as generalized linear models. All such models can be easily fit by maximum likelihood, using the widely available GLIM computer package. Additionally, GLIM enables the computation of likelihood ratio statistics for testing many hypotheses of interest. Examples are presented that cover a variety of cases, along with their implementation on GLIM. © 1991 The Psychometric Society. | ["Critchlow D.E.", "Fligner M.A."] | ["6603791049", "6507306133"] | 1,991 | 43 | ["Bradley-Terry models", "generalized linear models", "paired comparisons", "ranking models", "Thurstone-Mosteller models"] | 10.1007/BF02294488 | Article | English | [{"id": "60003500", "name": "Department of Statistics, The Ohio State University, Columbus, 43210, Ohio, 1958 Neil Avenue, United States", "fullName": "Department of Statistics, The Ohio State University", "reference": "a", "fullAddress": "Columbus, 43210, Ohio, 1958 Neil Avenue, United States", "departmentId": "100268215"}] |
1,458 | 81,622 | Analysis and development of effective invariant kinetic parameters finding method bassd on the non-isothermal data | Thermochimica Acta | The connection of the method of estimating effective invariant kinetic characteristics with the common ways of describing the complicated process by means of multiparametric dependences and the main equation of non-isothermal kinetics is discussed. This method gives the possibility to transform variables, which makes the statement inverse kinetic problem conditions better. The validity of the method has been shown by the experimental data of the butyl rubber decomposition. © 1985. | ["Levchik S.V.", "Levchik G.P.", "Lesnikovich A.I."] | ["7006411928", "6701638265", "7003394512"] | 1,985 | 25 | [] | 10.1016/0040-6031(85)85841-X | Article | English | [{"id": "60046660", "name": "Institute of Physico-Chemical Problems, Byelorussian State University, cxMinsk, Belarus", "fullName": "Institute of Physico-Chemical Problems, Byelorussian State University", "reference": "a", "fullAddress": "cxMinsk, Belarus", "departmentId": null}] |
1,459 | 81,636 | Wirephoto quality improvement by unsharp masking | Pattern Recognition | We present a simple technique for improving, in real time, the quality of wirephoto pictures. This technique can be incorporated in conventional wirephoto transmitters with very little cost. © 1970. | ["Schreiber W.F."] | ["7102093513"] | 1,970 | 59 | [] | 10.1016/0031-3203(70)90007-5 | Article | English | [{"id": "60022195", "name": "Department of Electrical Engineering, Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA, United States", "fullName": "Department of Electrical Engineering, Research Laboratory of Electronics, Massachusetts Institute of Technology", "reference": "a", "fullAddress": "Cambridge, MA, United States", "departmentId": "105248806"}] |
1,460 | 81,639 | An admissible and optimal algorithm for searching AND/OR graphs | Artificial Intelligence | An AND/OR graph is a graph which represents a problem-solving process. A solution graph is a subgraph of the AND/OR graph which represents a derivation for a solution of the problem. Therefore, solving a problem can be viewed as searching for a solution graph in an AND/OR graph. A "cost" is associated with every solution graph. A minimal solution graph in a solution graph with minimal cost. In this paper, an algorithm for searching for a minimal solution graph in an AND/OR graph is described. If the "lower bound" condition is satisfied, the algorithm is guaranteed to find a minimal solution graph when one exists. Furthermore, the "optimality" of the algorithm is also proved. © 1971. | ["Chang C.L.", "Slagle J.R."] | ["7407037528", "7005864643"] | 1,971 | 54 | [] | 10.1016/0004-3702(71)90006-3 | Article | English | [{"id": "100488532", "name": "Heuristics Laboratory, Division of Computer Research and Technology, Bethesda, MD 20014, United States", "fullName": "Heuristics Laboratory, Division of Computer Research and Technology", "reference": "a", "fullAddress": "Bethesda, MD 20014, United States", "departmentId": "106103940"}, {"id": "60006577", "name": "National Institutes of Health, Department of Health, Education and Welfare, Bethesda, MD 20014, United States", "fullName": "National Institutes of Health, Department of Health, Education and Welfare", "reference": "b", "fullAddress": "Bethesda, MD 20014, United States", "departmentId": "103371728"}] |
1,461 | 81,740 | Virasoro anomaly, trace anomaly and the Liouville action for 2D gravity | Physics Letters B | The relation among the 2D general covariance, the Weyl invariance, the Virasoro anomaly and the trace anomaly in a conformal field theory coupled to 2D gravity is investigated in canonical formalism. A novel Liouville action, which is a local functional of 2D metric fields, is obtained. The quantization in the conformal and the light-cone gauges is briefly discussed. © 1994. | ["Fujiwara T.", "Igarashi Y.", "Kubo J.", "Tabei T."] | ["7403542471", "24556539400", "7006373704", "7006133895"] | 1,994 | 5 | [] | 10.1016/0370-2693(94)00937-6 | Article | English | [{"id": "60000099", "name": "Department of Physics, Ibaraki University, Mito, 310, Japan", "fullName": "Department of Physics, Ibaraki University", "reference": "a", "fullAddress": "Mito, 310, Japan", "departmentId": "103039834"}, {"id": "60022313", "name": "Faculty of General Education, Niigata University, Niigata, 950-21, Japan", "fullName": "Faculty of General Education, Niigata University", "reference": "b", "fullAddress": "Niigata, 950-21, Japan", "departmentId": "104141045"}, {"id": "60008743", "name": "Max-Planck-Institut für Physik, Werner-Heisenberg-Institut, D-80805 Munich, Föhringer Ring 6, Germany", "fullName": "Max-Planck-Institut für Physik, Werner-Heisenberg-Institut", "reference": "c", "fullAddress": "D-80805 Munich, Föhringer Ring 6, Germany", "departmentId": null}, {"id": "60024784", "name": "Japan", "fullName": null, "reference": "d", "fullAddress": "Japan", "departmentId": "104249918"}, {"id": "60024784", "name": "Graduate School of Science and Technology, Kanazawa University, Kanazawa, 920-11, Japan", "fullName": "Graduate School of Science and Technology, Kanazawa University", "reference": "e", "fullAddress": "Kanazawa, 920-11, Japan", "departmentId": "113159736"}] |
1,462 | 81,791 | Chronological algebras and nonstationary vector fields | Journal of Soviet Mathematics | A calculus is developed, reflecting the most general group-theoretic properties of flows, defined by nonstationary differential equations on manifolds. © 1981 Plenum Publishing Corporation. | ["Agrachev A.A.", "Gamkrelidze R.V."] | ["7004057199", "6506468968"] | 1,981 | 45 | [] | 10.1007/BF01084595 | Article | English | [] |
1,463 | 81,869 | Spatiotemporal complexity in traveling patterns | Physical Review Letters | This is a study of the nonlinear interactions of solitary waves or impulses in homogeneous, extended media. We obtain the set of ordinary differential equations for the positions of the impulses in the nearest-neighbor approximation. Solutions with constant velocity lead to pattern maps that give the successive spacings of the impulses. From among the infinitely many metastable patterns given by the maps, the system chooses one asymptotically through a hierarchical evolution. © 1988 The American Physical Society. | ["Elphick C.", "Meron E.", "Spiegel E.A."] | ["56992924800", "7003920262", "7004599730"] | 1,988 | 70 | [] | 10.1103/PhysRevLett.61.496 | Article | English | [{"id": "60030162", "name": "Department of Astronomy, Columbia University, New York, NY 10027, United States", "fullName": "Department of Astronomy, Columbia University", "reference": "a", "fullAddress": "New York, NY 10027, United States", "departmentId": "104524021"}] |
1,464 | 81,958 | Application of an artificial neural network in chromatography - Retention behavior prediction and pattern recognition | Chemometrics and Intelligent Laboratory Systems | Layered feed-forward neural networks are powerful tools particularly suitable for the analysis of nonlinear multivariate data. In this paper, an artificial neural network using improved error back-propagation algorithm has been applied to solve problems in the field of chromatography. In this paper, an artificial neural network has been used in the following two applications: (1) To model retention behavior of 32 solutes in a methanol-tetrahydrofuran- water system and 49 solutes in methanol-acetonitrile-water system as a function of mobile phase compositions in high performance liquid chromatography. The correlation coefficients between the calculated and the experimental capacity factors were all larger than 0.98 for each solute in both the training set and the predicting set. The average deviation for all data points was 8.74% for the tetrahydrofuran-containing system and 7.33% for the acetonitrile-containing system. 2). To classify and predict two groups of different liver and bile diseases using bile acid data analyzed by reversed- phase high performance liquid chromatography (RP-HPLC). The first group includes three classes: healthy persons, choledocholithiasis patients and cholecystolithiasis patients; the total consistent rate of classification was 87%. The second group includes six classes: healthy persons, pancreas cancer patients, hepatoportal high pressure patients, cholelithiasis patients, cholangietic jaundice patients and hepatonecrosis patients; the total consistent rate of classification was 83%. It was shown that artificial neural network possesses considerable potential for retention prediction and pattern recognition based on chromatographic data. | ["Zhao R.H.", "Yue B.F.", "Ni J.Y.", "Zhou H.F.", "Zhang Y.K."] | ["7401975925", "36792433200", "7201636855", "7404743345", "56027285600"] | 1,999 | 23 | ["Artificial neural network", "Error back-propagation algorithm", "High resolution gas chromatography", "Pattern recognition", "Retention behavior", "Reversed-phase high performance liquid chromatography (RP- HPLC)"] | 10.1016/S0169-7439(98)00100-2 | Conference Paper | English | [{"id": "60019499", "name": "Natl. Chromatography R and a Centre, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116011, No. 161, Zhongshan Road, China", "fullName": "Natl. Chromatography R and a Centre, Dalian Institute of Chemical Physics, Chinese Academy of Sciences", "reference": "a", "fullAddress": "Dalian 116011, No. 161, Zhongshan Road, China", "departmentId": "103815820"}] |
1,465 | 82,062 | General fuzzy least squares | Fuzzy Sets and Systems | A model for least-squares fitting of fuzzy-valued data is described. A previous process obtained for triangular fuzzy numbers is generalized and improved to include all fuzzy numbers represented by single maxima piecewise continuous functions with compact support. The new model is compared with the previous procedure and its applicability is demonstrated. © 1997 Elsevier Science B.V. | ["Ming Ma.", "Friedman M.", "Kandel A."] | ["24374067300", "7403710425", "7103056431"] | 1,997 | 80 | ["Banach space", "Embedding", "Fuzzy least squares", "Fuzzy number space", "Fuzzy numbers"] | 10.1016/S0165-0114(96)00051-6 | Article | English | [{"id": "60007740", "name": "Computer Science and Engineering Department, University of South Florida, Tampa, FL 33620-5350, 4202 E. Fowler Avenue, United States", "fullName": "Computer Science and Engineering Department, University of South Florida", "reference": "a", "fullAddress": "Tampa, FL 33620-5350, 4202 E. Fowler Avenue, United States", "departmentId": "108366307"}, {"id": "60019616", "name": "Harbin Institute of Technology, Harbin 150001, China", "fullName": "Harbin Institute of Technology", "reference": "b", "fullAddress": "Harbin 150001, China", "departmentId": null}, {"id": "60028915", "name": "NRCN, Physics Department, Beer-Sheva, P.O. Box 9001, Israel", "fullName": "NRCN, Physics Department", "reference": "c", "fullAddress": "Beer-Sheva, P.O. Box 9001, Israel", "departmentId": "100258457"}] |
1,466 | 82,069 | Scaling behaviour of the effective chiral action and stability of the chiral soliton | Physics Letters B | The effective chiral action is evaluated within a novel improved heat-kernel expansion, which includes gradients of the chiral field in a non-perturbative way. This expansion is valid for both small and large momenta. The exact scaling behaviour of the effective action of a localized chiral field with respect to changing its spatial size is found. From this it is proved that the radiatively induced derivative terms cannot absolutely stabilize the chiral soliton against collapsing. The collapsing of the soliton is, however, accompanied by a vanishing of the baryon charge. It is argued that the effective chiral action constrained to a fixed baryon number may still admit stable soliton configurations. © 1987. | ["Reinhardt H."] | ["8788671800"] | 1,987 | 7 | [] | 10.1016/0370-2693(87)91653-4 | Article | English | [{"id": "60030840", "name": "The Niels Bohr Institute, University of Copenhagen, DK-2100 Copenhagen Ø, Blegdamsvej 17, Denmark", "fullName": "The Niels Bohr Institute, University of Copenhagen", "reference": "a", "fullAddress": "DK-2100 Copenhagen Ø, Blegdamsvej 17, Denmark", "departmentId": null}, {"id": "105902659", "name": "Central Institute for Nuclear Research, Rossendorf, Pf. 19, DDR-8051 Dresden, GDR1 1 Permanent address.", "fullName": null, "reference": "b", "fullAddress": null, "departmentId": null}] |
1,467 | 82,174 | Radiation Damage Factor for Ion-Implanted Silicon Detectors Irradiated with Heavy Ions | IEEE Transactions on Nuclear Science | Ion-implanted silicon detectors were irradiated with 18–150 MeV 16O, 20 MeV 40Ar, and 53 MeV 110Xe. A linear increase of the leakage current was observed as a function of the particle fluence up to 2.2 x 108 cm-2. Extracted damage factors are proportional to the averaged nuclear stopping power over five orders of magnitude covering heavy ions studied in the present work and also protons of 25–800 MeV energies. © 1995 IEEE | ["Kurokawa M.", "Motobayashi T.", "Ieki K.", "Shimoura S.", "Murakami H.", "Ikeda Y.", "Moriya S.", "Yanagisawa Y.", "Nomura T."] | ["8979415700", "8401955700", "7003316368", "9432795800", "35372518200", "35430733100", "57194228188", "57109932100", "57131296200"] | 1,995 | 0 | [] | 10.1109/23.387356 | Article | English | [{"id": "60025272", "name": "Institute for Nuclear Study, University of Tokyo, Tanashi, Tokyo 188, Japan", "fullName": "Institute for Nuclear Study, University of Tokyo", "reference": "a", "fullAddress": "Tanashi, Tokyo 188, Japan", "departmentId": "109938918"}] |
1,468 | 82,177 | Unified formulation of linear iterative learning control | Advances in the Astronautical Sciences | Iterative Learning Control (ILC) refers to a class of control techniques that improves the performance of a process by repeated trials. It is naturally applicable in repetitive operations because of its ability to compensate for unknown repetitive disturbances. Recently there has been a proliferation of ILC laws in the literature with a good fraction of them - including several with extensive experimental validation - originated from linear control concepts. It is becoming increasingly necessary to have a unifying framework from which global perspectives on these ILC laws can be gained. Such a unified ILC formulation is presented in this paper. With this unified formulation, very general insights about various ILC structures and the relationship among them can be made. Discrete-time representation is used in this unification because this is how ILC is implemented in practice. | ["Phan M.Q.", "Longman R.W.", "Moore K.L."] | ["57205979762", "7004376576", "7403339373"] | 2,000 | 48 | [] | null | Article | English | [{"id": "60003269", "name": "Dept. of Mech. and Aerosp. Eng., Princeton University, Princeton, NJ 08544, United States", "fullName": "Dept. of Mech. and Aerosp. Eng., Princeton University", "reference": "a", "fullAddress": "Princeton, NJ 08544, United States", "departmentId": null}, {"id": "60030162", "name": "Department of Mechanical Engineering, Columbia University, New York, NY 10027, 500 West 120th Street, United States", "fullName": "Department of Mechanical Engineering, Columbia University", "reference": "b", "fullAddress": "New York, NY 10027, 500 West 120th Street, United States", "departmentId": "104524009"}, {"id": "60031706", "name": "Dept. of Elec. and Comp. Engineering, Utah State University, Logan, UT 84322, United States", "fullName": "Dept. of Elec. and Comp. Engineering, Utah State University", "reference": "c", "fullAddress": "Logan, UT 84322, United States", "departmentId": "104608804"}] |
1,469 | 82,199 | A comparison of filter diagonalisation methods with the Lanczos method for calculating vibrational energy levels | Chemical Physics Letters | In this Letter we compare two low-storage filter diagonalisation methods for calculating energy levels and compare both to the Lanczos algorithm. We are able to calculate energy levels in a high-lying window in the vibrational spectrum of H<sub>2</sub>O with fewer matrix-vector products using the Lanczos algorithm than using the filter diagonalisation methods. We find that the Lanczos calculation is less costly and that the cost of building the Hamiltonian and overlap matrices in the filtered basis is excessive if one uses a non-Chebyshev discrete variable representation filter. | ["Huang S.-W.", "Carrington Jr. T."] | ["56140280900", "7003962645"] | 1,999 | 52 | [] | 10.1016/S0009-2614(99)00889-1 | Article | English | [{"id": "60009507", "name": "Département de Chimie, Univ. Montreal, C.P. 6128, S., Montreal, Que. H3C 3J7, Canada", "fullName": "Département de Chimie, Univ. Montreal, C.P. 6128, S.", "reference": "a", "fullAddress": "Montreal, Que. H3C 3J7, Canada", "departmentId": "100250991"}] |
1,470 | 82,307 | Wavelet-based digital image watermarking | Optics Express | A wavelet-based watermark casting scheme and a blind watermark retrieval technique are investigated in this research. An adaptive watermark casting method is developed to first determine significant wavelet subbands and then select a couple of significant wavelet coefficients in these subbands to embed watermarks. A blind watermark retrieval technique that can detect the embedded watermark without the help from the original image is proposed. Experimental results show that the embedded watermark is robust against various signal processing and compression attacks. © 1998 Optical Society of America. | ["Wang H.-J.M.", "Su P.-C.", "Kuo C.-C.J."] | ["7501732398", "7101814838", "55533887300"] | 1,998 | 112 | [] | 10.1364/OE.3.000491 | Article | English | [{"id": "60029311", "name": "Dept. of Elec. Engineering-Systems, University of Southern California, Los Angeles, CA 90089-2564, United States", "fullName": "Dept. of Elec. Engineering-Systems, University of Southern California", "reference": "a", "fullAddress": "Los Angeles, CA 90089-2564, United States", "departmentId": "113762476"}] |
1,471 | 82,319 | Modeling physical systems by effective harmonic oscillators: The optimized quadratic approximation | The Journal of Chemical Physics | A mathematical formalism is developed to map a physical system described by a general potential energy function onto one consisting of effective harmonic oscillators. The present focus is on many-body systems characterized by a temperature, so the theoretical effort is devoted to the partition function through a diagrammatic representation of its cumulant expansion in the quadratic reference system. Appropriate diagram summation and renormalization strategies lead to an "optimized quadratic approximation" (OQA) for both the quantum and classical partition functions of general systems. Diagrammatic methods are also used to develop accurate higher order corrections to the OQA. Applications to representative problems are presented with good success. © 1995 American Institute of Physics. | ["Cao J.", "Voth G.A."] | ["7403354091", "7005823898"] | 1,995 | 40 | [] | 10.1063/1.469207 | Article | English | [{"id": "60006297", "name": "Department of Chemistry, University of Pennsylvania, Philadelphia, PA 19104-6323, United States", "fullName": "Department of Chemistry, University of Pennsylvania", "reference": "a", "fullAddress": "Philadelphia, PA 19104-6323, United States", "departmentId": "110184976"}] |
1,472 | 82,417 | Some important properties of edge shape functions | IEEE Transactions on Magnetics | Some important properties of edge shape functions are investigated such as (1) a method for deriving edge shape functions from nodal shape functions, and (2) required conditions for solving uniform magnetic field problem using hexahedral edge elements. The followings are obtained for respective items: (1) there are a few possibilities to derive edge shape functions from identical nodal shape functions, and (2) 1st order hexahedral edge elements cannot give uniform fields. © 1998 IEEE. | ["Ahagon A."] | ["6603078841"] | 1,998 | 8 | ["Edge element", "Gauge transformation", "Nodal element", "Shape function", "Uniform magnetic field problem"] | 10.1109/20.717777 | Article | English | [{"id": "60107350", "name": "Home Appliance Research Laboratory, Matsushita Electric Industrial Co., Ltd., Yamato-Koriyama 639-1188, Japan", "fullName": "Home Appliance Research Laboratory, Matsushita Electric Industrial Co., Ltd.", "reference": "a", "fullAddress": "Yamato-Koriyama 639-1188, Japan", "departmentId": "117662410"}] |
1,473 | 82,428 | Suppression of the line broadening by fast Rabi flopping effects | Physical Review A | We report on a new mechanism that can lead to line narrowing. We show that the line-broadening effects associated with a broadband source can be suppressed by irradiating the system with a coherent pump. We give explicit results for this suppression in spontaneous emission from a two-level system. © 1989 The American Physical Society. | ["Agarwal G.S.", "Singh S."] | ["55629866800", "7407873709"] | 1,989 | 5 | [] | 10.1103/PhysRevA.39.2239 | Article | English | [{"id": "60029516", "name": "School of Physics, University of Hyderabad, Hyderabad 500 134, India", "fullName": "School of Physics, University of Hyderabad", "reference": "a", "fullAddress": "Hyderabad 500 134, India", "departmentId": "100294407"}] |
1,474 | 82,466 | Exactly solvable toy model for the pseudogap state | European Physical Journal B | We present an exactly solvable toy model which describes the emergence of a pseudogap in an electronic system due to a fluctuating off-diagonal order parameter. In one dimension our model reduces to the fluctuating gap model (FGM) with a gap Δ(cursive Greek chi) that is constrained to be of the form Δ(cursive Greek chi) = Ae<sup>iQcursive Greek chi</sup>, where A and Q are random variables. The FGM was introduced by Lee, Rice and Anderson [Phys. Rev. Lett. 31, 462 (1973)] to study fluctuation effects in Peierls chains. We show that their perturbative results for the average density of states are exact for our toy model if we assume a Lorentzian probability distribution for Q and ignore amplitude fluctuations. More generally, choosing the probability distributions of A and Q such that the average of Δ(cursive Greek chi) vanishes and its covariance is 〈Δ(cursive Greek chi)Δ*(cursive Greek chi′)〉 = Δ<sup>2</sup><sub>S</sub> exp[|cursive Greek chi - cursive Greek chi′|/ξ], we study the combined effect of phase and amplitude fluctuations on the low-energy properties of Peierls chains. We explicitly calculate the average density of states, the localization length, the average single-particle Green's function, and the real part of the average conductivity. In our model phase fluctuations generate delocalized states at the Fermi energy, which give rise to a finite Drude peak in the conductivity. We also find that the interplay between phase and amplitude fluctuations leads to a weak logarithmic singularity in the single-particle spectral function at the bare quasi-particle energies. In higher dimensions our model might be relevant to describe the pseudogap state in the underdoped cuprate superconductors. | ["Bartosch L.", "Kopietz P."] | ["6601953031", "56268472500"] | 2,000 | 10 | ["02.50.Ey Stochastic processes", "71.10.Pm Fermions in reduced dimensions (anyons, composite fermions, luttinger liquid, etc.)", "71.23.-k Electronic structure of disordered solids"] | 10.1007/s100510070092 | Article | English | [{"id": "60031514", "name": "Inst. für Theoretische Physik, Universität Göttingen, 37073 Göttingen, Bunsenstrasse 9, Germany", "fullName": "Inst. für Theoretische Physik, Universität Göttingen", "reference": "a", "fullAddress": "37073 Göttingen, Bunsenstrasse 9, Germany", "departmentId": null}] |
1,475 | 82,540 | Algorithms, software and sequential optimal sampling schedule designs for pharmacokinetic and physiologic experiments | Mathematics and Computers in Simulation | The problem of designing optimal blood sampling protocols for kinetic experiments in pharmacology, physiology and medicine is briefly described, followed by a presentation of several interesting results based on sequentially optimized studies we have performed in more than 75 laboratory animals. Experiences with different algorithms and design software are also presented. The overall approach appears to be highly efficacious, from the standpoints of both laboratory economics and resulting model accuracy. Optimal sampling schedules (OSS) have a number of different time points equal to the number of unknown parameters for a popular class of models. Replication rather than distribution of samples provide maximum accuracy when additional sampling is feasible; and specific replicates can be used to weight some parameter accuracies more than others, even when a D-optimality criterion is used. Our sequential experiment scheme often converged in 1 step and resulting optimal sampling schedules were reasonably robust, allowing for biological variation among the animals studied. © 1982. | ["DiStefano III J.J."] | ["7005026826"] | 1,982 | 18 | [] | 10.1016/0378-4754(82)90654-1 | Article | English | [{"id": "60027550", "name": "Departments of Computer Science and Medicine, Biocybernetics Laboratory, University of California, Los Angeles, CA 90024, United States", "fullName": "Departments of Computer Science and Medicine, Biocybernetics Laboratory, University of California", "reference": "a", "fullAddress": "Los Angeles, CA 90024, United States", "departmentId": "104396402"}] |
1,476 | 82,624 | Dynamic optimization of constrained chemical engineering problems using dynamic programming | Computers and Chemical Engineering | In many chemical engineering process control applications, one frequently encounters differential-algebraic optimization problems. Such optimal control problems are difficult to solve, in general, because of the presence of singular arcs for systems whose Hamiltonian is linear with respect to the control variable. We propose the use of absolute error penalty functions (AEPF) in handling constrained optimal control problems in chemical engineering by posing the problem as a nonsmooth dynamic optimization problem. We show that Iterative dynamic programming (IDP) is a very useful technique for solving constrained dynamic optimization problems without unduly increasing the dimension of the system or the computational burden. A move suppression criterion has been incorporated into the IDP algorithm in order to penalize excessive control moves. To show the efficacy of the method, an analytical (exact) solution of a simple problem is obtained using least squares control theory and compared with results obtained using IDP. Results obtained for other seemingly difficult optimal control problems in chemical engineering compare very favourably with those reported in the optimization and optimal control literature. © 1995, All rights reserved. | ["Dadebo S.A.", "Mcauley K.B."] | ["6603356435", "7005469759"] | 1,995 | 140 | [] | 10.1016/0098-1354(94)00086-4 | Article | English | [{"id": "60016005", "name": "Chemical Engineering Department, Queen's University, Kingston, Ontario, K7L 3N6, Canada", "fullName": "Chemical Engineering Department, Queen's University", "reference": "a", "fullAddress": "Kingston, Ontario, K7L 3N6, Canada", "departmentId": "109547999"}] |
1,477 | 82,631 | Continuous Room-Temperature Operation of Optically Pumped Two-Dimensional Photonic Crystal Lasers at 1.6 μm | IEEE Photonics Technology Letters | In this letter, continuous operation is realized from two-dimensional slab photonic crystal lasers at room temperature. The laser structure is prepared by wafer fusion of an InGaAsP active layer with an AlAs layer that is wet oxidized into an Al<sub>2</sub>O<sub>3</sub> layer subsequently. The incident threshold pump power at 0.98 μm is 9.2 mW for a ∼10-μm-diameter hexagonal cavity lasing at 1.6 μm. | ["Hwang J.K.", "Ryu H.Y.", "Song D.S.", "Han I.Y.", "Park H.K.", "Jang D.H.", "Lee Y.H."] | ["7403896994", "7202277251", "7402443659", "7201559095", "55971675200", "7102794539", "34978057700"] | 2,000 | 82 | ["InGaAsP-InP", "Microcavity", "Photonic crystal", "Semiconductor laser", "Wafer fusion"] | 10.1109/68.883808 | Article | English | [{"id": "60032144", "name": "Department of Physics, Korea Adv. Inst. Sci. and Technol., Taejon 305-701, South Korea", "fullName": "Department of Physics, Korea Adv. Inst. Sci. and Technol.", "reference": "a", "fullAddress": "Taejon 305-701, South Korea", "departmentId": "111815122"}, {"id": "60001558", "name": "Electronics and Telecom. Res. Inst., Taejon 305-701, South Korea", "fullName": "Electronics and Telecom. Res. Inst.", "reference": "b", "fullAddress": "Taejon 305-701, South Korea", "departmentId": null}] |
1,478 | 82,639 | Characterisation of five novel zebrafish Eph-related receptor tyrosine kinases suggests roles in patterning the neural plate | Development Genes and Evolution | Eph-related receptor tyrosine kinases (RTKs) are the largest known subfamily of RTKs, comprising at least a dozen members. Expression studies suggest roles for these genes in patterning and differentiation of the nervous system, the neural crest, developing limbs and somites. Some of the recently isolated family of ligands for Eph-related RTKs have been shown to function as positional identifiers in the retinotectal system. We have previously characterised three Eph-related RTKs in the zebrafish (rtk1-3). Here we report the identification of five new zebrafish Eph-related RTKs (rtk4, rtk5, rtk6, rtk7 and rtk8) and describe their dynamic expression patterns. Based on these expression patterns, we propose that rtk4-8 play various roles in establishing territories within the developing central nervous system (CNS) and in the subsequent differentiation of defined neuronal populations. © Springer-Verlag 1997. | ["Cooke J.E.", "Xu Q.", "Wilson S.W.", "Holder N."] | ["7202378922", "7403743591", "55228586400", "7005543148"] | 1,997 | 28 | ["Eph receptors", "Neural patterning", "Neural plate", "Receptor tyrosine kinases", "Zebrafish"] | 10.1007/s004270050082 | Article | English | [{"id": "60011520", "name": "Devmtl. Biology Research Centre, Randall Institute, King's College London, London, WC2B 5RL, 26-29 Drury Lane, United Kingdom", "fullName": "Devmtl. Biology Research Centre, Randall Institute, King's College London", "reference": "a", "fullAddress": "London, WC2B 5RL, 26-29 Drury Lane, United Kingdom", "departmentId": "103616267"}] |
1,479 | 82,770 | A reduced gravity, primitive equation model of the upper equatorial ocean | Journal of Computational Physics | This paper describes a fourth-order finite difference model of the equatorial ocean that is designed to study dynamic and thermodynamic processes on time scales of a decade or less. It is a primitive equation model employing the reduced gravity assumption so that the deep ocean is at rest below the active upper ocean. The model consists of a surface mixed layer and an active layer below, which is divided into an arbitrary number of numerical layers by means of a sigma coordinate. The model can be used in an unstratified version, when temperature acts as a passive tracer, as well as in the full stratified version. The numerical formulation of the model is described in detail. Experiments comparing three different horizontal smoothers: Shapiro filter, Laplacian friction, and biharmonic friction are presented. It is concluded that, at the level needed to maintain computational stability, the Shapiro filter damps the fields least; in addition, it is faster and easier to implement when the horizontal finite difference grid is stretched. © 1989. | ["Gent P.R.", "Cane M.A."] | ["7004890337", "7006248174"] | 1,989 | 158 | [] | 10.1016/0021-9991(89)90216-7 | Article | English | [{"id": "60021243", "name": "National Center for Atmospheric Research, Boulder, CO 80307, P.O. Box 3000, United States", "fullName": "National Center for Atmospheric Research", "reference": "a", "fullAddress": "Boulder, CO 80307, P.O. Box 3000, United States", "departmentId": null}, {"id": "60033011", "name": "Lamont-Doherty Geological Observatory, Palisades, NY 10964, United States", "fullName": "Lamont-Doherty Geological Observatory", "reference": "b", "fullAddress": "Palisades, NY 10964, United States", "departmentId": null}] |
1,480 | 82,836 | Representations of (1,0) and (2,0) superconformal algebras in six dimensions: Massless and short superfields | Letters in Mathematical Physics | We construct unitary representations of (1,0) and (2,0) superconformal algebras in six dimensions by using superfields defined on harmonic superspaces with coset manifolds USp(2n)/[U(1)]<sup>n</sup>, n = 1, 2. In the spirit of the AdS<sub>7</sub>/CFT<sub>6</sub> correspondence, massless conformal fields correspond to 'supersingletons' in AdS<sub>7</sub>. By tensoring them we produce all short representations corresponding to 1/2 and 1/4 BPS anti-de Sitter bulk states of which 'massless bulk' representations are particular cases. | ["Ferrara S.", "Sokatchev E."] | ["7103237551", "57204290654"] | 2,000 | 30 | ["Conformal supersymmetry", "Six dimensions"] | 10.1023/A:1007667404374 | Article | English | [{"id": "60019778", "name": "CERN Theoretical Division, CH 1211 Geneva 23, Switzerland", "fullName": "CERN Theoretical Division", "reference": "a", "fullAddress": "CH 1211 Geneva 23, Switzerland", "departmentId": null}, {"id": "60026007", "name": "Lab. d'Annecy-le-Vieux Phys. Theor., LAPTH, Chemin de Bellevue, F-74941 Annecy-le-Vieux Cedex, BP 110, France", "fullName": "Lab. d'Annecy-le-Vieux Phys. Theor., LAPTH, Chemin de Bellevue", "reference": "b", "fullAddress": "F-74941 Annecy-le-Vieux Cedex, BP 110, France", "departmentId": "105971456"}] |
1,481 | 82,857 | Noncompact gauge theories on a lattice: perturbative study of the scaling properties | Nuclear Physics, Section B | We investigate a new lattice regularization of gauge theories where gauge invariance with noncompact gauge fields is realized with the help of auxiliary fields. For the gauge group SU(2) there is only one auxiliary field. We construct the complete action for scaling dimension 2 of this field. In this case the regularization amounts to relaxing the unitarity of the Wilson link variables, but has the same renormalization scale parameter showing the stability of Wilson's fixed point. © 1992. | ["Becchi C.M.", "Palumbo F."] | ["22974274700", "56211872500"] | 1,992 | 12 | [] | 10.1016/0550-3213(92)90555-P | Article | English | [{"id": "60021660", "name": "Dipartimento di Fisica, Università di Genova, Sezione INFN, I-16146 Genoa, Via Dodecaneso 33, Italy", "fullName": "Dipartimento di Fisica, Università di Genova, Sezione INFN", "reference": "a", "fullAddress": "I-16146 Genoa, Via Dodecaneso 33, Italy", "departmentId": "104273154"}, {"id": "60021660", "name": "INFN, Laboratori Nazionali di Frascati, I-00044 Frascati, Rome, P.O. Box 13, Italy", "fullName": "INFN, Laboratori Nazionali di Frascati", "reference": "b", "fullAddress": "I-00044 Frascati, Rome, P.O. Box 13, Italy", "departmentId": null}] |
1,482 | 82,914 | One-way large range step methods for helmholtz waveguides | Journal of Computational Physics | A useful approach for long range computation of the Helmholtz equation in a waveguide is to re-formulate it as the operator differential Riccati equation for the Dirichlet-to-Neumann map. For waveguides with slow range dependence, the piecewise range-independent approximation is used to derive a second-order range stepping method for this one-way re-formulation. The range marching formulas are exact for each range-independent piece and a large range step is possible if the range dependence is gradual. Based on a fourth-order conservative exponential method for linear evolution equations, a fourth-order method that admits even larger range steps is developed for the one-way re-formulation. Numerical examples are used to demonstrate the improved accuracy of the fourth-order method. © 1999 Academic Press. | ["Lu Y.Y."] | ["7405479620"] | 1,999 | 34 | [] | 10.1006/jcph.1999.6243 | Article | English | [{"id": "60013983", "name": "Department of Mathematics, City University of Hong Kong, Kowloon, Tat Chee Avenue, Hong Kong", "fullName": "Department of Mathematics, City University of Hong Kong", "reference": "a", "fullAddress": "Kowloon, Tat Chee Avenue, Hong Kong", "departmentId": "113244337"}] |
1,483 | 83,058 | Classification of topological effects in molecular systems | Chemical Physics Letters | This article discusses two subjects which are shown to be closely connected. The first subject concerns the existence of pure diabatic states and the derivation of an adiabatic-to-diabatic matrix within a sub-Hilbert space. If certain requirements are fulfilled this sub-space behaves, for all practical purposes, like a full Hilbert space. The second concerns the necessary condition for having uniquely defined diabatic potentials. Fulfillment of this condition has led to the introduction of a matrix - the Topological matrix - which was found to contain the topological features of a given system. In the present Letter, the study of the topological matrix is extended to reveal new features. | ["Baer M."] | ["7102191141"] | 2,000 | 24 | [] | 10.1016/S0009-2614(00)00463-2 | Article | English | [{"id": "60003242", "name": "Dept. of Phys. and Appl. Mathematics, Appl. Phys. Div., Soreq NRC, 81800, Yavne, Israel", "fullName": "Dept. of Phys. and Appl. Mathematics, Appl. Phys. Div., Soreq NRC, 81800", "reference": "a", "fullAddress": "Yavne, Israel", "departmentId": "103215759"}] |
1,484 | 83,210 | The role of timing in reinforcement schedule performance | Learning and Motivation | Reinforcement schedules produce distinctive and reliable temporal patterns of behavior. Temporal discrimination is known to be an important ingredient in these patterns. We sketch a simple dynamic model for the discrimination of short time intervals, linear waiting, in terms of four assumptions: that the time before the onset of the reinforced response, waiting time, is determined by the food delay in the just-preceding interfood interval; that waiting is triggered by the most recent time marker; that different delays signaled by the same time marker are averaged; and that the effectiveness of a given stimulus as a time marker is limited by memory constraints. We show that recursive application of linear waiting can generate contiguity learning and many molecular patterns of behavior on interval schedules, such as the fixed-interval "scallop" and interresponse times on variable-interval schedules, as well as molar properties such as the hyperbolic relation between response and reinforcement rates on variable-interval schedules. Linear waiting also implies the high response rates on ratio schedules and their instability. Linear waiting does not seem able to account for differences in response rates between ratio and interval schedules equated for reinforcement rate, molar response functions on ratio schedules, and some features of responding on cyclic schedules. These failures highlight our limited understanding of the role of memory in timing and hint at additional mechanisms. © 1991. | ["Staddon J.E.R.", "Wynne C.D.L.", "Higa J.J."] | ["7006049668", "35607109100", "7003292414"] | 1,991 | 19 | [] | 10.1016/0023-9690(91)90023-2 | Article | English | [{"id": "60008724", "name": "Duke University, United States", "fullName": "Duke University", "reference": "a", "fullAddress": "United States", "departmentId": null}, {"id": "60025525", "name": "Universität Konstanz, Germany", "fullName": "Universität Konstanz", "reference": "b", "fullAddress": "Germany", "departmentId": null}] |
1,485 | 83,248 | Prediction of on-coil temperature of condensers installed at tall building re-entrant | Applied Thermal Engineering | Split-type air-conditioners that serve an apartment building often have the outdoor condensing units installed at the building re-entrants. Heat energy released by the condensing units induces a hot air plume which has its temperature increase all along the path up the building. When the plume reaches the upper floors, its elevated temperature degrades the condenser efficiency and may even interrupt the air-conditioner operation because of high-temperature cut. At the design stage, air-conditioning practitioners often find it very difficult to analyse the condenser performance when working in a cluster. The work requires the expertise of using an air flow simulation/computation tool to predict the condenser on-coil temperatures. This article presents a modelling/computation technique to tackle this problem. An application example is quoted to demonstrate the practicability of the approach. | ["Chow T.T.", "Lin Z."] | ["35338718500", "55664254300"] | 1,999 | 32 | ["Air-conditioning", "Thermal and flow simulation"] | 10.1016/S1359-4311(98)00042-8 | Article | English | [{"id": "60013983", "name": "Div. of Bldg. Science and Technology, City University of Hong Kong, Hong Kong, Hong Kong", "fullName": "Div. of Bldg. Science and Technology, City University of Hong Kong", "reference": "a", "fullAddress": "Hong Kong, Hong Kong", "departmentId": "103724847"}] |
1,486 | 83,347 | Higher twist corrections to Bjorken sum rule | Physics Letters B | Some higher twist corrections to the Bjorken sum rule are estimated in the framework of a quark-diquark model of the nucleon. The parameters of the model have been previously fixed by fitting the measured higher twist corrections to the unpolarized structure function F<sub>2</sub>(x, Q<sup>2</sup>). The resulting corrections to the Bjorken sum rule turn out to be negligible. © 1995. | ["Anselmino M.", "Caruso F.", "Levin E."] | ["7006817767", "7102575723", "7202747038"] | 1,995 | 9 | [] | 10.1016/0370-2693(95)00969-R | Article | English | [{"id": "60012259", "name": "Dipartimento di Fisica Teorica, Università di Torino, Istituto Nazionale di Fisica Nucleare, I-10125 Torino, Via P. Giuria 1, Italy", "fullName": "Dipartimento di Fisica Teorica, Università di Torino, Istituto Nazionale di Fisica Nucleare", "reference": "a", "fullAddress": "I-10125 Torino, Via P. Giuria 1, Italy", "departmentId": "103645292"}, {"id": "60008132", "name": "Centro Brasileiro de Pesquisas Físicas, CNPq, 22290-180 Rio de Janeiro, Rua Dr. Xavier Sigaud 150, Brazil", "fullName": "Centro Brasileiro de Pesquisas Físicas, CNPq", "reference": "b", "fullAddress": "22290-180 Rio de Janeiro, Rua Dr. Xavier Sigaud 150, Brazil", "departmentId": null}] |
1,487 | 83,348 | Arrangements in higher dimensions: Voronoi diagrams, motion planning, and other applications | Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) | We review recent progress in the study of arrangements of surfaces in higher dimensions. This progress involves new and nearly tight bounds on the complexity of lower envelopes, single cells, zones, and other substructures in such arrangements, and the design of efficient algorithms (near optimal in the worst case) for constructing and manipulating these structures. We then present applications of the new results to motion planning, Voronoi diagrams, visibility, and geometric optimization. © 1995, Springer-Verlag. All rights reserved. | ["Sharir M."] | ["7102671352"] | 1,995 | 6 | [] | 10.1007/3-540-60220-8_55 | Conference Paper | English | [{"id": "60005681", "name": "School of Mathematical Sciences, Tel Aviv University, Tel Aviv, 69978, Israel", "fullName": "School of Mathematical Sciences, Tel Aviv University", "reference": "a", "fullAddress": "Tel Aviv, 69978, Israel", "departmentId": "113159396"}, {"id": "60021784", "name": "Courant Institute of Mathematical Sciences, New York University, New York, 10012, NY, United States", "fullName": "Courant Institute of Mathematical Sciences, New York University", "reference": "b", "fullAddress": "New York, 10012, NY, United States", "departmentId": null}] |
1,488 | 83,428 | pH Control Using a Simple Set Point Change | Industrial and Engineering Chemistry Research | The control of the pH process plays an important role in wastewater treatment or cell growth rate in biological systems. However, pH control has been a difficult problem due to its nonlinearities and time-varying properties. Many authors proposed nonlinear pH control strategies to overcome, these drawbacks. However, their methods’ complicated control structures make practical implementation difficult. Therefore, in this study, we propose a new control strategy using a simple set point change. The proposed method has short identification time and reduces the effects of noise by considering many data points. © 1995, American Chemical Society. All rights reserved. | ["Sung S.W.", "Lee I.-B."] | ["7202731867", "36072610500"] | 1,995 | 22 | [] | 10.1021/ie00044a024 | Article | English | [{"id": "60032330", "name": "Department of Chemical Engineering, Pohang University of Science and Technology, Pohang, 790-784, San 31 Hyoja Dong, South Korea", "fullName": "Department of Chemical Engineering, Pohang University of Science and Technology", "reference": "a", "fullAddress": "Pohang, 790-784, San 31 Hyoja Dong, South Korea", "departmentId": "112678479"}] |
1,489 | 83,483 | Quantum similarity measures under atomic shell approximation: First order density fitting using elementary Jacobi rotations | Journal of Computational Chemistry | The elementary Jacobi rotations technique is proposed as a useful tool to obtain fitted electronic density functions expressed as linear combinations of atomic spherical shells, with the additional constraint that all coefficients are kept positive. Moreover, a Newton algorithm has been implemented to optimize atomic shell exponents, minimizing the quadratic error integral function between ab initio and fitted electronic density functions. Although the procedure is completely general, as an application example both techniques have been used to compute a 1S-type Gaussian basis for atoms H through Kr, fitted from a 3-21G basis set. Subsequently, molecular electronic densities are modeled in a promolecular approximation, as a simple sum of parameterized atomic contributions. This simple molecular approximation has been employed to show, in practice, its usefulness to some computational examples in the field of molecular quantum similarity measures. © 1997 John Wiley & Sons, Inc. | ["Amat L.", "Carbó-Dorca R."] | ["7003560052", "7006463633"] | 1,997 | 95 | ["Atomic shell approximation", "Carbó Index", "Elementary Jacobi rotations", "Promolecular densities", "Quadratic error integral function", "Quantum similarity measures"] | 10.1002/(SICI)1096-987X(199712)18:16<2023::AID-JCC7>3.0.CO;2-N | Article | English | [{"id": "60009952", "name": "Institute of Computational Chemistry, University of Girona, Girona 17071, Catalonia, Spain", "fullName": "Institute of Computational Chemistry, University of Girona", "reference": "a", "fullAddress": "Girona 17071, Catalonia, Spain", "departmentId": "103542662"}] |
1,490 | 83,578 | An O(nm)-time algorithm for computing the dual of a regular Boolean function | Discrete Applied Mathematics | We consider the problem of dualizing a positive Boolean function f{hook}: B<sup>n</sup> → B given in irredundant disjunctive normal form (DNF), that is, obtaining the irredundant DNF form of its dual f{hook}<sup>d</sup>(x) = f{hook}(x). The function f is said to be regular if there is a linear order ≳ on {1,...,n} such that i≳j, x<sub>i</sub> = 0, and x<sub>j</sub> = 1 imply f{hook}(x) ≤ f{hook}(x + u<sub>i</sub> - u<sub>j</sub>), where u<sub>k</sub> denote unit vectors. A previous algorithm of the authors, the Hop-Skip-and-Jump algorithm, dualizes a regular function in polynomial time. We use this algorithm to give an explicit expression for the irredundant DNF of f{hook}<sup>d</sup> in terms of the one for f{hook}. We show that if the irredundant DNF for f{hook} has m ≥ 2 terms, then the one for f{hook}<sup>d</sup> has at most (n - 2)m + 1, and can be computed in O(nm) time. This can be applied to solve regular set-covering problems in O(nm) time. © 1994. | ["Peled U.N.", "Simeone B."] | ["6701704009", "6603793166"] | 1,994 | 26 | [] | 10.1016/0166-218X(94)90215-1 | Article | English | [{"id": "60027561", "name": "United States", "fullName": null, "reference": "a", "fullAddress": "United States", "departmentId": "108041267"}, {"id": "60032350", "name": "Department of Statistics, University of Rome La Sapienza, Rome, Italy", "fullName": "Department of Statistics, University of Rome La Sapienza", "reference": "b", "fullAddress": "Rome, Italy", "departmentId": "113795183"}] |
1,491 | 83,593 | An Alternative to White Light Interferometric Sensing | Journal of Lightwave Technology | An optical scanning technique is presented as an alternative to white light interferometry. In this technique, it is possible to eliminate the receiving interferometer used in a conventional two-interferometer white light interferometric system and hence a simple, stable and compact sensor device may be realized. A high resolution and large operating range also becomes possible with this system. © 1995 IEEE | ["Wang D.N.", "Ning Y.N.", "Palmer A.W.", "Grattan K.T.V.", "Weir K."] | ["7407075918", "7102383029", "24312641700", "57203080984", "7003961825"] | 1,995 | 7 | [] | 10.1109/50.387814 | Article | English | [{"id": "60025704", "name": "Department of Electrical, Electronic and Information Engineering, City University, Northampton Square, London EC1V OHB, United Kingdom", "fullName": "Department of Electrical, Electronic and Information Engineering, City University, Northampton Square", "reference": "a", "fullAddress": "London EC1V OHB, United Kingdom", "departmentId": "104303923"}] |
1,492 | 83,625 | Consistent quantitative model for the spatial extent of point defect interactions in silicon | Journal of Applied Physics | The silicon point defect properties which control the spatial extent of their interactions (e.g., interstitial diffusivity) have been calculated by many researchers. However, large discrepancies exist in the reported values of these parameters, and it is essential to have a consistent set of parameters for use in process simulation. To meet this need, we present here a model which includes important interactions which have been ignored in previous analyses, specifically bulk recombination of interstitials with vacancies and segregation of interstitials to surface oxide films. We assess the effectiveness of the model in predicting the spatial extent of point defect interactions by comparing simulation results with a wide range of experimental data. Although this same experimental data previously gave large differences in calculated parameter values, we obtain a single set of model parameters which can account for the full range of data in a consistent manner. © 1995 American Institute of Physics. | ["Agarwal A.M.", "Dunham S.T."] | ["35549053900", "7006130880"] | 1,995 | 0 | [] | 10.1063/1.359708 | Article | English | [{"id": "60019674", "name": "Electrical, Computer and Systems Engineering Department, Boston University, Boston, MA 02215, United States", "fullName": "Electrical, Computer and Systems Engineering Department, Boston University", "reference": "a", "fullAddress": "Boston, MA 02215, United States", "departmentId": "104002582"}] |
1,493 | 83,636 | An improved method for preparation of carboxylic esters using CsF- celite/alkyl halide/CH<sub>3</sub>CN combination | Synthetic Communications | A new method for efficient and chemoselective esterification of carboxylic acids in CsF-Celite/alkyl halide/CH<sub>3</sub>CN reaction system is described. | ["Lee J.C.", "Choi Y."] | ["55689901600", "7404777155"] | 1,998 | 42 | [] | 10.1080/00397919808007177 | Article | English | [{"id": "60014237", "name": "Department of Chemistry, Chung-Ang University, Seoul, 156-756, South Korea", "fullName": "Department of Chemistry, Chung-Ang University", "reference": "a", "fullAddress": "Seoul, 156-756, South Korea", "departmentId": "112657928"}] |
1,494 | 83,694 | An evaluation of the MOOD set of object-oriented software metrics | IEEE Transactions on Software Engineering | This paper describes the results of an investigation into a set of metrics for object-oriented design, called the MOOD metrics. The merits of each of the six MOOD metrics is discussed from a measurement theory viewpoint, taking into account the recognized object-oriented features which they were intended to measure: encapsulation, inheritance, coupling, and polymorphism. Empirical data, collected from three different application domains, is then analyzed using the MOOD metrics, to support this theoretical validation. Results show that (with appropriate changes to remove existing problematic discontinuities) the metrics could be used to provide an overall assessment of a software system, which may be helpful to managers of software development projects. However, further empirical studies are needed before these results can be generalized. © 1998 IEEE. | ["Harrison R.", "Counsell S.J.", "Nithi R.V."] | ["57200948126", "7005059140", "6508290025"] | 1,998 | 214 | ["Assessing object-oriented software", "Empirical software engineering", "Validating software metrics"] | 10.1109/32.689404 | Article | English | [{"id": "60025225", "name": "Department of Electronics and Computer Science, University of Southampton, Southampton, SO17 1BJ, United Kingdom", "fullName": "Department of Electronics and Computer Science, University of Southampton", "reference": "a", "fullAddress": "Southampton, SO17 1BJ, United Kingdom", "departmentId": "112357448"}] |
1,495 | 83,715 | Optimal Bayesian design applied to logistic regression experiments | Journal of Statistical Planning and Inference | A traditional way to design a binary response experiment is to design the experiment to be most efficient for a best guess of the parameter values. A design which is optimal for a best guess however may not be efficient for parameter values close to that best guess. We propose designs which formally account for the prior uncertainty in the parameter values. A design for a situation where the best guess has substantial uncertainty attached to itis very different from a design for a situation where approximate values of the parameters are known. We derive a general theory for concave design critria for non-linear models and then apply the theory to logistic regression. Designs found by numerical optimization are examined for a range of prior distributions and a range of criteria. The theoretical results are used to verify that the designs are indeed optimal. © 1989. | ["Chaloner K.", "Larntz K."] | ["6603963972", "6602859079"] | 1,989 | 287 | ["A-optimality", "Algorithm", "Bayesian design", "binary data", "D-optimality", "equivalence theorem", "logistic regression", "Nelder-Mead algorithm", "non-linear models", "optimal design", "optimization", "reliability experiments", "simplex method", "stress testing"] | 10.1016/0378-3758(89)90004-9 | Article | English | [{"id": "60029445", "name": "Department of Applied Statistics, University of Minnessota, St. Paul, MN 55108, United States", "fullName": "Department of Applied Statistics, University of Minnessota", "reference": "a", "fullAddress": "St. Paul, MN 55108, United States", "departmentId": "104490161"}] |
1,496 | 83,728 | A percolation model of catalyst deactivation by site coverage and pore blockage | Journal of Catalysis | The problem of catalyst deactivation by active site poisoning and pore blockage, under globally kinetic control, is analyzed. The catalyst pore space is represented by a three-dimensional network of interconnected pores. As a result, the effect of morphological properties of the catalyst pore space, i.e., its geometry (pore size distribution) and topology (connectedness), on the deactivation process is investigated, for the first time, simultaneously. The concepts of percolation theory, a modern theory of statistical physics of disordered media, are employed to show that both single-pore and bundle of parallel pore models perform rather poorly and that the interconnectivity of the pores plays a fundamental role in the overall catalytic behavior. The extension of the model to more complicated systems is also discussed. © 1985. | ["Sahimi M.", "Tsotsis T.T."] | ["35561714900", "7005792548"] | 1,985 | 103 | [] | 10.1016/0021-9517(85)90323-9 | Article | English | [{"id": "60029311", "name": "Department of Chemical Engineering, University of Southern California, Los Angeles, CA 90089-1211, United States", "fullName": "Department of Chemical Engineering, University of Southern California", "reference": "a", "fullAddress": "Los Angeles, CA 90089-1211, United States", "departmentId": "100243707"}] |
1,497 | 83,814 | Congruence lattices of function lattices | Order | The function lattice L<sup>P</sup> is the lattice of all isotone maps from a poset P into a lattice L. D. Duffus, B. Jónsson, and I. Rival proved in 1978 that for a finite poset P, the congruence lattice of L<sup>P</sup> is a direct power of the congruence lattice of L; the exponent is |P|. This result fails for infinite P. However, utilizing a generalization of the L<sup>P</sup> construction, the L[D] construction (the extension of L by D, where D is a bounded distributive lattice), the second author proved in 1979 that Con L[D] is isomorphic to (Con L) [Con D] for a finite lattice L. In this paper we prove that the isomorphism Con L[D]≅(Con L)[Con D] holds for a lattice L and a bounded distributive lattice D iff either Con L or D is finite. © 1994 Kluwer Academic Publishers. | ["Grätzer G.", "Schmidt E.T."] | ["7003606578", "7402693925"] | 1,994 | 5 | ["Congruence lattice", "function lattice", "Mathematics Subject Classifications (1991): Primary 06B10, Secondary 08A05"] | 10.1007/BF02115812 | Article | English | [{"id": "60009697", "name": "Department of Mathematics, University of Manitoba, Winnipeg, R3T 2N2, Man., Canada", "fullName": "Department of Mathematics, University of Manitoba", "reference": "a", "fullAddress": "Winnipeg, R3T 2N2, Man., Canada", "departmentId": "105339518"}, {"id": "60030035", "name": "Department of Mathematics, Transport Engineering Faculty, Technical University of Budapest, Budapest, 1111, Müegyetem rkp. 9, Hungary", "fullName": "Department of Mathematics, Transport Engineering Faculty, Technical University of Budapest", "reference": "b", "fullAddress": "Budapest, 1111, Müegyetem rkp. 9, Hungary", "departmentId": "105447271"}] |
1,498 | 83,824 | Classical codes as ideals in group algebras | Designs, Codes and Cryptography | The theory of algebraic codes is a perfect illustration of the fact that the more mathematical structure one is able to add to a system, the better are the descriptions one obtains: Changing from codes to linear codes, it is no longer necessary to compute all distances between any two codewords, only the codeword weights, in order to find the minimum distance. Going from linear codes to cyclic codes then, the linear structure is replaced by a much richer algebraic structure, and general results on properties of codes such as the BCH-bound, fast decoding algorithms, etc., may be developed. Thus it was an important result realizing that shortened Generalized Reed-Muller (GRM) codes are cyclic codes, since the GRM codes themselves were constructed only as linear codes. And it was interesting when S.D. Berman (see [1]) in 1967 discovered that the Reed-Muller codes over GF(2) may be described as ideals in a very natural algebra, namely the group algebra over an elementary abelian 2-group. Based on some properties of the GRM codes discovered by T. Kasami et al. in 1968 (see [7]), P. Charpin then could prove (see [2]) that a similar fact holds over GF(p). In retrospect, one is left with the impression that it is an extensive and complicated piece of work to establish these facts. Here, we go the opposite way and start with the algebra, develop some general properties, focus on some very basic ideals which happen to be the GRM codes. Our approach is very natural and is based on some classical results on group algebras developed by S. Jennings (see [6]) in the early forties, which P. Charpin apparently was unaware of. These results are straightforward when the underlying group is elementary abelian, and may be developed from scratch. The same methods apply to not only the extended Reed-Solomon codes but to all GRM codes over arbitrary finite fields. While the first sections may be of most interest to representation theory, our last section contains a new decoding algorithm of the Reed-Muller codes, which takes advantage of the underlying algebra structure, thus justifying the whole approach. There are definitely methods there, which may be applied to other group codes, such as those based on algebraic geometry. © 1992 Kluwer Academic Publishers. | ["Landrock P.", "Manz O."] | ["6602349872", "16436129000"] | 1,992 | 28 | [] | 10.1007/BF00141972 | Article | English | [{"id": "60029616", "name": "Department of Mathematics, Aarhus University, Aarhus C, DK-8000, Denmark", "fullName": "Department of Mathematics, Aarhus University", "reference": "a", "fullAddress": "Aarhus C, DK-8000, Denmark", "departmentId": "104500082"}, {"id": "60083617", "name": "Cryptomathic A/S, Forskersparken, Aarhus C, DK-8000, Denmark", "fullName": "Cryptomathic A/S, Forskersparken", "reference": "b", "fullAddress": "Aarhus C, DK-8000, Denmark", "departmentId": null}, {"id": "60016908", "name": "IWR, Universität Heidelberg, Heidelberg, D-6900, Germany", "fullName": "IWR, Universität Heidelberg", "reference": "c", "fullAddress": "Heidelberg, D-6900, Germany", "departmentId": null}, {"id": "101754117", "name": "Utility Consultants International, Frankfurt, D-6000, Germany", "fullName": "Utility Consultants International", "reference": "d", "fullAddress": "Frankfurt, D-6000, Germany", "departmentId": null}] |
1,499 | 83,854 | A mental model analysis of young children's conditional reasoning with meaningful premises | Thinking and Reasoning | Mental model theory has been used to explain many differing phenomena in adult reasoning, including the extensively studied case of conditional reasoning. However, the current theory makes predictions about the development of conditional reasoning that are not consistent with data. In this article, young children's performance on conditional reasoning problems and the justifications given are analysed. A mental model account of conditional reasoning is proposed that assumes that (1) young children can reason with two models and (2) the fleshing out of conditionals involves activation of information in semantic memory that uses the minor premise as a retrieval cue. © 2000, Taylor & Francis Group, LLC. | ["Markovits H."] | ["6701671135"] | 2,000 | 50 | [] | 10.1080/135467800750038166 | Article | English | [{"id": "60027863", "name": "Universite du Quebec a Montreal, Canada", "fullName": "Universite du Quebec a Montreal", "reference": "a", "fullAddress": "Canada", "departmentId": null}] |
1,500 | 83,890 | A new renormalization scheme in the Landau-Ginzburg-Wilson model | Physics Letters A | A new method of eliminating short-wavelength degrees of freedom from hamiltonians of the Landau-Ginzburg-Wilson model is proposed. For a class of models with hamiltonians of special form the problems of calculating the free energies and some correlation functions are approximately reduced to Cauchy problems for nonlinear partial differential equations. The possibility of application of the developed formalism in the theory of liquid-gas phase transitions is pointed out. © 1984. | ["Tokar V.I."] | ["6602624606"] | 1,984 | 29 | [] | 10.1016/0375-9601(84)90360-8 | Article | English | [{"id": "60011313", "name": "Institute of Metal Physics, Academy of Sciences of the UkrSSR, 252142 Kiev, Russian Federation", "fullName": "Institute of Metal Physics, Academy of Sciences of the UkrSSR", "reference": "a", "fullAddress": "252142 Kiev, Russian Federation", "departmentId": null}] |
1,501 | 83,896 | Probabilistic retrieval revisited | Computer Journal | The well-known probabilistic model for information retrieval based on Bayesian conditioning of probability functions is examined. It is extended to allow conditioning based on evidence derived from the 'passage of experience' which may be non-propositional in nature. This latter form of conditioning is derived from Jeffrey's work on probability kinematics and it is compared with the Dempster-Shafer approach to revising belief functions whilst motivating its appropriateness for adaptive information retrieval. This new form of conditioning is combined with a non-classical logic to define a new probabilistic model for information retrieval. © 1992 The British Computer Society. | ["Van Rijsbergen C.J."] | ["6603874964"] | 1,992 | 21 | [] | 10.1093/comjnl/35.3.291 | Article | English | [{"id": "60001490", "name": "Department of Computing Science, University of Glasgow, Glasgow, Scotland G12 8QQ, United Kingdom", "fullName": "Department of Computing Science, University of Glasgow", "reference": "a", "fullAddress": "Glasgow, Scotland G12 8QQ, United Kingdom", "departmentId": "103121064"}] |
1,502 | 83,929 | Modeling some effects of frontal lobe damage-Novelty and perseveration | Neural Networks | Neural networks are presented which simulate some behavioral effects of frontal lobe damage. On some cognitive tasks, frontal lesions cause perserveration of formerly rewarding choices of action. On other tasks, frontal lesions cause approach to objects just because they are novel. Both effects can be explained by weakening of signals between sensory and reinforcement loci. The networks that reproduce these data incorporate neural design principles developed for other purposes by Grossberg and his co-workers. These design principles include adaptive resonance between two layers of sensory processing; attentional gating of synapses between layers; and competition among gated dipoles containing on-units and off-units. © 1989. | ["Levine D.S.", "Prueitt P.S."] | ["35461937000", "6603123463"] | 1,989 | 65 | ["Frontal lobes", "Novelty", "Perseveration"] | 10.1016/0893-6080(89)90027-0 | Article | English | [{"id": "60003467", "name": "University of Texas at Arlington, United States", "fullName": "University of Texas at Arlington", "reference": "a", "fullAddress": "United States", "departmentId": null}] |
1,503 | 84,014 | The blow-up problem for exponential nonlinearities | Communications in Partial Differential Equations | We give a solution of the blow-up problem for equation □u = e<sup>u</sup>, with data close to constants, in any number of space dimensions: there exists a blow-up surface, near which the solution has logarithmic behavior; its smoothness is estimated in terms of the smoothness of the data. More precisely, we prove that for any solution of □u = e<sup>u</sup> with Cauchy data on t = 1 close to (ln 2, -2) in H<sup>s</sup> (ℝ<sup>n</sup>) × H<sup>s-1</sup>(ℝ<sup>n</sup>), s is a large enough integer, must blow-up on a space like hypersurface defined by an equation t = ψ(x) with ψ ∈ H<sup>s-146-9[n/2]</sup>(ℝ<sup>n</sup>). Furthermore, the solution has an asymptotic expansion ln(2/T<sup>2</sup>) + ∑<sub>j,k</sub> u<sub>jk</sub>(x)T<sup>j+k</sup>(ln T)<sup>k</sup>, where T = t - ψ(x), valid upto order s -151 - 10[n/2]. Logarithmic terms are absent if and only if the blow-up surface has vanishing scalar curvature. The blow-up time can be identified with the infimum of the function ψ. Although attention is focused on one equation, the strategy is quite general; it consists in applying the Nash-Moser IFT to a map from "singularity data" to Cauchy data. | ["Kichenassamy S."] | ["7003411907"] | 1,996 | 18 | [] | 10.1080/03605309608821177 | Article | English | [{"id": "60029445", "name": "School of Mathematics, University of Minnesota, 127 Vincent Hall, Minneapolis, MN 55455-0487, 206 Church Street S. E., United States", "fullName": "School of Mathematics, University of Minnesota, 127 Vincent Hall", "reference": "a", "fullAddress": "Minneapolis, MN 55455-0487, 206 Church Street S. E., United States", "departmentId": "118429528"}] |
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