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A finite-element simulation for the drying process of ceramics is performed. The heat and moisture movements in green ceramics caused by the temperature gradient, moisture gradient, conduction, convection and evaporation are considered. The finite-element formulation for solving the temperature and moisture distributio... | In the DPST (Direct Prototype Spray Tooling) sprayed directly prototype tooling technology of Huazhong University of Science and Technology , due to brittle characteristics of ceramic materials, there was low efficient in the processing of large mold .The study would obtain sprayed ceramic prototypes through Industrial... | Berzelius failed to make use of Faraday's electrochemical laws in his laborious determination of equivalent weights. | eng_Latn | 45,759 |
Discrete particle element analysis of aggregate interaction in granular mixes for asphalt: combined DEM and experimental study | Incorporation of Rubber Powder as Filler in a New Dry-Hybrid Technology: Rheological and 3D DEM Mastic Performances Evaluation | Path collective variables without paths | eng_Latn | 45,772 |
Development of Geopolymer with Coal Fired Boiler Ash | Comparative study on the characteristics of fly ash and bottom ash geopolymers. | Fire-resistant geopolymer produced by granulated blast furnace slag | eng_Latn | 45,780 |
ELECTRICALLY CONDUCTIVE CB/PET/PE COMPOSITE PREPARED THROUGH EXTRUSION AND HOT STRETCHING | Based on the previous study of in-situ fibrillation of general engineering plastics/general-purpose plastics, it was attempted to prepare fibrillar carbon black (CB)/poly(ethylene terephthalate) (PET)/polyethylene (PE) composite with electrical conductivity through extrusion and hot stretching. CB and PET were first me... | Ag-added Y–Ba–Cu–O bulk superconductors were joined using Ag-added Er–Ba–Cu–O solder and different Er211 contents. Microstructural analysis revealed that the volume fraction of Er211 at the joint with a composition of Er123:Er211 = 4:1 was the same as that for the expected volume fraction of the initial composition. Th... | yue_Hant | 45,878 |
Study on composite resin cores. Part 2. Effect of pressing composite resin | In this study, we investigated effects of pressing in building composite resin cores on compressive strength, retention of prefabricated post and sealing ability. 1. Compressive strength increased by pressing in composite resin cores. 2. Prefabricated post to the retentive forces was not influenced by pressing, but inc... | Abstract The physicochemically derived swelling stress in articular cartilage plays a crucial role in determining the pattern of stress sharing between the exudable fluid and the ‘solid’ components comprising its matrix. This pattern of stress sharing in turn influences the manner in which cartilage consolidates or def... | eng_Latn | 45,909 |
Synthesis of Titanium Pillared Clay Nano Functional Material | Polymer/nano-clay composites have better barrier properties, fire resistance and higher mechanical properties since nano-caly particles were reinforcing the composites on a molecular scale. Titanium pillared clay was made by introducing polymeric titanium oxide cations into the bentonite structure by cation exchange. T... | Objective To study the best extracting technology of Compound Taizishen Granule prescription.Methods The total polysaccharides and total saponins were determined by UV spectrophotometer.With the content of total polysaccharides and total saponins as comprehensive indexes,orthogonal test was applied to investigation of ... | eng_Latn | 45,911 |
The Microstructure and Thermal Performance of Phenolic Resin(PF)/Rectorite(REC) Nanocomposites Produced by High Pressure Method | High pressure method was used to produce phenolic resin(PF)/rectorite(REC) nanocomposites.The microstructure and thermal performance of the nanocomposites was studied by X-ray diffraction(XRD),transmission electron microscope(TEM),and thermal analysis.The experimental results show that exfoiated resin/clay nanocomposit... | Objective To study the best extracting technology of Compound Taizishen Granule prescription.Methods The total polysaccharides and total saponins were determined by UV spectrophotometer.With the content of total polysaccharides and total saponins as comprehensive indexes,orthogonal test was applied to investigation of ... | eng_Latn | 45,913 |
Microemulsions with commercial nonionic surfactants: study of their formation and detergency properties | ABSTRACT Microemulsion regions in systems of commercial nonionic surfactant, water and aliphatic hydrocarbon have been determined. The influence of hydrocarbon chain length, nature of surfactant and temperature in microemulsion formation was studied. Textile deter-gency tests of these microemulsions, in conditions of m... | Abstract A mixture of mono- and di-substituted nitriles was separated on six different liquid phases, but a mixture of mono- and di-substituted anilines was separated on only two liquid phases. The forces influencing the separation and elution order of these solutes are discussed. The absence of selective interactions ... | eng_Latn | 45,915 |
Granular formulation and manufacturing method | Object of the present invention to provide a granular preparation hours even in average particle diameter, can be effectively controlled drug dissolution characteristics. The present invention provides a granule formulation, wherein that the first coating layer containing a water-insoluble polymer particles and inorgan... | The pharmacodynamics is affect by particle size of wild G.Lucidum.This paper uses laser equipment of particle size analysis of the particle size for wild G.Lucidum powders. The study is focused on dispersion medium kind, dispersion medium quantity, ultrasonic time and temperatures for the influence of wild G.Lucidum po... | eng_Latn | 45,922 |
Growth mechanisms and selectivity for graphene or carbon nanotube formation on SiC ( 0 0 0 1 ¯ ): A density-functional tight-binding molecular dynamics study | Abstract We have performed density-functional tight-binding simulations mimicking the thermal decomposition of the SiC ( 0 0 0 1 ¯ ) surface to reproduce the experimentally observed growth of either graphene or carbon nanotubes. A graphene-like network was obtained from a layer-by-layer decomposition of the SiC surface... | A controllable impregnation of glass fibre structures used in high performance fibre reinforced cement composites can nowadays only be obtained by hand lay-up means, constraining possible structural applications of this promising composite. This paper discusses an innovative manufacturing process designed for the mecha... | eng_Latn | 45,926 |
Acceleration of Particle Based Fluid Simulation with Adhesion Boundary Conditions Using GPU | We present adhesion boundary conditions for smoothed particle hydrodynamics (SPH) with implicit surfaces. An existing method called ghost SPH addresses adhesion boundary conditions and produces plausible liquid animations using ghost particles. The generation of ghost particles, however, takes considerable computation ... | The aim of this study was to determine the basic rheological parameters of dispersed highly concentrated lignite aqueous suspensions. Typical dilatant behavior was observed, where critical parameters of dilatancy were determined for different size fractions and concentrations. To modify the non-Newtonian behavior of th... | eng_Latn | 45,934 |
Modeling the viscoelastic compaction response of 3D woven fabrics for liquid composite molding processes | In liquid composite molding processes, the compaction characterization of fibrous reinforcements plays a key role in determining the thickness, fiber volume content, and part shape. This study pres... | Abstract In this research the moisture susceptibility and rutting resistance Stone mastic Asphalt containing amorphous carbon powder as filler material were investigated. Amorphous carbon powder was used as a replacement of the limestone filler by 25, 50, 75 and 100%. Performance of the mixtures was evaluated using ind... | eng_Latn | 45,936 |
The investigation of early hydration and pore structure for limestone powder wastes blended cement pastes | Abstract This work systematically investigates the early hydration process and pore structure evolution of high limestone powder wastes content blended cement pastes by non-contact impedance measurement and microstructural tests. According to the evolution of impedance response, the early hydration process of blende ce... | Bascd on the whole physical of inverse humidity given in literature, a new scheme of land-surface process parameterization is designed. The new scheme has successfully simulated appearing the inverse humidity phenomenon in desert near oasis. The simulated result is coincident with the observed ones, so that the new sch... | eng_Latn | 45,941 |
Solitons of dipolar spinor condensates in an optical lattice | Solitons of dipolar spinor condensates confined in a one-dimensional optical lattice are studied in terms of the equation of motion of the spinor which is reduced to the sine-Gordon equation in the limit of strong dipole–dipole interaction and weak external magnetic field. It is shown that the solitons obtained analyti... | The aim of this study was to determine the basic rheological parameters of dispersed highly concentrated lignite aqueous suspensions. Typical dilatant behavior was observed, where critical parameters of dilatancy were determined for different size fractions and concentrations. To modify the non-Newtonian behavior of th... | eng_Latn | 45,948 |
Chemical/Mechanical Analyses of Anhydride-Cured Thermosetting Epoxys: DGEBA/NMA/BDMA | The chemical state of cure in a thermosetting resin was used to predict the resin's equilibrium modulus. High performance liquid chromatography analyses of the sol fraction yielded molar dynamics for monomeric, oligomeric, and polymeric molecules. Their population density distributions were compared with theoretical pr... | Background ::: Anthropometric models remain appropriate alternatives to estimate body composition of peripubertal populations. However, these traditional models do not consider other body components that undergo major changes during peripubertal growth spurt, with restrictions to a multicompartimental approach as a qua... | eng_Latn | 45,954 |
Studies on the absorption and disposition of 3H-labelled talc in the rat, mouse, guinea-pig and rabbit | Abstract The absorption and disposition of talc was studied in rats, mice and guinea-pigs, following a single oral dose of 3 H-labelled material. The translocation of talc in the rabbit urogenital tract was studied after single and multiple intravaginal applications. More than 95% of the dose of orally administered tal... | Reference to the AC-13 asphalt mixture gradation,the rubber particles instead of part of the fine aggregate were added to the asphalt mixture as aggregate.Through indoor Marshall test the effect of the rubber particles on the asphalt mixture Marshall mechanical index was analyzed.The results show that by adding the rub... | eng_Latn | 45,985 |
Numerical study of the motion behaviour of three-dimensional cubic particle in a thin drum | The motion of three-dimensional cubic particles in a thin rotating drum is simulated by the SIPHPM method. The drums with frictional or smooth front and rear walls, and the particles of cubic and spherical shapes, and different particle numbers are considered to study the effect of cubic particle shape, end-wall fricti... | Based on the theory of elastic mechanics,an analytical solution was derived for a compress sample of triaxial compression test.According to the mechanical characteristics and the analytic solution of the compress sample,a method and a formula for calculating the Poisson ratio of grain were put forward.The experimental ... | eng_Latn | 45,993 |
Damage Creation in Single Crystal Silicon Induced by He Ion Implantation at Different Energies | Single crystal silicon samples were implanted at room temperature with He ions of different energies (40, 160 and 1550keV) to the same fluence of 5×10~(16) ions/cm~2. Cross-sectional transmission electron microscopy was used to study on the formation of cavities after the subsequent annealing at 800℃ for 1h. The result... | A controllable impregnation of glass fibre structures used in high performance fibre reinforced cement composites can nowadays only be obtained by hand lay-up means, constraining possible structural applications of this promising composite. This paper discusses an innovative manufacturing process designed for the mecha... | eng_Latn | 46,010 |
Dependence of Some Physical Characteristics of Epoxy Compounds on the Filler Parameters | The effect of the dispersion and thermophysical properties of the filler on the characteristics and aging of the UP5-162 epoxy compound is investigated. It is shown that the particle size and homogeneity of filler distribution affect significantly the internal mechanical stresses during compound curing. Thermal aging o... | In liquid composite molding processes, the compaction characterization of fibrous reinforcements plays a key role in determining the thickness, fiber volume content, and part shape. This study pres... | eng_Latn | 46,020 |
Mineral Processing Scientific Research on a Gold-Bearing Polymetallic | In this article amalgamation flotation combined flowsheet and adaptable technology additions was adopted basing on the full demonstration and experimental study,in addition of head grade:Au 7.18 g/t,Ag47.7 g/t, Cu 0.207%,experiment index:flotation bulk concentrate contain Au 54.00 g/t,Ag 509.0 g/t,Cu3.13%,the recovery ... | FIELD: foundry, namely casting method with use of casting mold having consumable model. SUBSTANCE: method comprises steps of producing porous powdered part of non-evaporated powder; manufacture of casting mold with use of porous powdered part as consumable model; casting melt metal to prepared casting mold. At casting ... | eng_Latn | 46,039 |
Design Proposal for Concrete Cover Separation in Beams Strengthened by Externally Bonded Tension Reinforcement | Existing experimental observations have shown that the application of externally bonded reinforcement (steel plate, FRP laminate, overlay, etc.) to strengthen RC structures can lead to brittle failures involving debonding of the external reinforcement before the design load is reached with classical failure modes. The ... | Abstract Methods of estimating the concentration of effective network chains from the stress—strain behaviour of elastomers both dry and swollen in solvents are discussed. It is pointed out that while measurements in uniaxial extension are more difficult to carry out experimentally than measurements in uniaxial compres... | eng_Latn | 46,097 |
Epoxy resin-modified cement binder composition as a coating or seal | A) at least one epoxy resin, binder (A); B) containing a water at least one amine compound as amine curing agent, an aqueous curing agent (B); C) at least one water including hydraulic inorganic binder, preferably cement, a multi-composition comprising a solid agent (C), based on the total weight, it contains at least ... | Performance of metal gasket influenced by the final design of the forming result. Good shape of the gasket will give optimal leakage performance. It is difficult to produce good shape because of the spring back effect. In this study, we investigated the forming process of metal gasket 400MPa-mode for two types of dies ... | eng_Latn | 46,098 |
Experimental Research on Mineral Processing of High Content of Slime and Finely Disseminated Bauxite Ore | The content of slime was high and the A/S ratio was relatively low,and the objective mineral was finely disseminated,so it was extremely difficult to be separated. Based on the ore property,the measures such as pre-desliming,combination of stage grinding and check classification and adopting the collector of EMLB-2 wer... | By feeding the silkworms with the nano Fe3O4 powder together with mulberry leaves, we directly obtained silkworm spun pristine magnetic silk fiber, MSF. To compare with the normal SF found that this MSF not only has expected magnetic properties, but also has enhanced thermal stability and mechanical properties, e.g. st... | eng_Latn | 46,106 |
Study of the rheological properties of dispersed lignite suspensions | The aim of this study was to determine the basic rheological parameters of dispersed highly concentrated lignite aqueous suspensions. Typical dilatant behavior was observed, where critical parameters of dilatancy were determined for different size fractions and concentrations. To modify the non-Newtonian behavior of th... | A statistical analysis has been made of the distribution functions for residence time of a liquid in different flow formulations. The region of application of the different models of longitudinal dispersion is discussed. | eng_Latn | 46,110 |
Characterization of three recycled materials for alternative use of mortars | Because natural resources in construction are limited, it is advisable to look for new alternatives that meet comparable functions, and likewise, reduce consumption of non-renewable resources. The use of recycled materials is of benefit to the uncontrolled elimination of residues that cause the use of the public resour... | Introduced the application of the principle of wet magnesia flue gas desulphurization technology and process,this paper absorption oxidation reaction in which the absorber tower system design and application of the device,and provides a theoretical basis and reference. | eng_Latn | 46,121 |
Processing and characteristics of TiB2 toughened B—Ti—C composites | B-Ti-C composites toughened by TiB2 particles were produced by reaction sintering of B4C, TiC and TiB2 powders. Microstructure and mechanical properties of the composites were studied. A notable improvement on flexure strength and fracture toughness were achieved in B4C composites containing 10%TiB2 and 20%-30%TiC(volu... | Objective To study the best extracting technology of Compound Taizishen Granule prescription.Methods The total polysaccharides and total saponins were determined by UV spectrophotometer.With the content of total polysaccharides and total saponins as comprehensive indexes,orthogonal test was applied to investigation of ... | eng_Latn | 46,126 |
Effects of particle size distribution, surface area and chemical composition on Portland cement strength | The fineness of a Portland cement and its chemical composition are the key factors in determining cement strength characteristics. This paper describes a study of the relationship between cement particle size distribution and surface area, and the effects of size distribution, surface area and chemical composition on c... | The properties of the system EHEC/SDS/water in solution show considerable time dependence during several hours after preparation. The paper discusses various reasons for this time dependence. Similar time dependence in polymer solutions has been observed elsewhere. It is found that although the system properties vary, ... | eng_Latn | 46,130 |
Spin-label study of immiscible polymers—II. Influence of polyisoprene on end-labelled polystyrene | Abstract Electron spin resonance spectra of blends of polyisoprene (PIP) and polystyrene (PS), carrying a nitroxide spin-label, show that the PIP exerts a plasticizing influence on the labelled chain-ends of PS. This effect presumably occurs at the interphase where certain of these chain-ends appear to be in a predomin... | The goals of the paper are to understand the impact damage behavior and identify the effect of surface protective materials on impact resistance in filament wound composite pressure vessels. For these, a series of low velocity impact tests was performed on specimens cutting from the full scale pressure vessel by the in... | eng_Latn | 46,142 |
The importance of physicochemical swelling in cartilage illustrated with a model hydrogel system | Abstract The physicochemically derived swelling stress in articular cartilage plays a crucial role in determining the pattern of stress sharing between the exudable fluid and the ‘solid’ components comprising its matrix. This pattern of stress sharing in turn influences the manner in which cartilage consolidates or def... | Summary In the pilot study, a new geomodeling technology is presented for developing 3D heterogonous geomodels for Athabasca McMurray (MCMR) oil sands. The geomodels were used to simulate SAGD thermal recovery. Both conventional SAGD completions and SAGD with ICD completions were tested. The simulation results show tha... | eng_Latn | 46,145 |
Treatment of substrates for improving ink adhesion to the substrates | Than the primer treatment with the treating composition to allow the aqueous ink composition of superior polymer-based, and generally discloses a production method thereof. More particularly, the polymer substrate may be a hydrophobic polymer substrate, such as those comprising a polyolefin, which exhibit excellent ink... | The aim of this study was to determine the basic rheological parameters of dispersed highly concentrated lignite aqueous suspensions. Typical dilatant behavior was observed, where critical parameters of dilatancy were determined for different size fractions and concentrations. To modify the non-Newtonian behavior of th... | eng_Latn | 46,149 |
A new approach to treating plastic strain in glassy polymers | A new deformation mechanism of glassy polymers is suggested. The approach is based on experimental data obtained in deformation calorimetric studies, residual strain e res recovery rate measurements, thermally stimulated creep, DSC, and others. Work and heat of deforming a sample were measured, and the concomitant vari... | The paper introducess the implemented conditions which colling recycle of flexible base on Ying-DaLine.It over all xpounds the investigation of road condlitions of original pavement,indoor trial study,determination of trial lot plan as well as completion of trial lot etc. | eng_Latn | 46,155 |
Screening of Fine Granular Material | This article describes screening of fine granular materials, including minerals. The first part of the study presents a description of screening and an analysis of resulting conclusions. The second part describes screens that have been developed in Lodz Technical University labs. From a number of screens only three hav... | In liquid composite molding processes, the compaction characterization of fibrous reinforcements plays a key role in determining the thickness, fiber volume content, and part shape. This study pres... | eng_Latn | 46,158 |
Interfacial properties of zirconium dioxide prepared by the sol-gel process | Abstract The properties of the zirconium dioxide-water interface have been studied in aqueous solutions of NaCl, Na 2 SO 4 , CaCl 2 and CaSO 4 . Zirconium dioxide has been prepared by the sol-gel process. Electrophoretic mobility has been determined as a function of pH in the presence of various electrolytes at differe... | A calculation model is developed for mechanical seals with a laser-textured micro-pore face. The dimensionless hydrodynamic pressure distribution on the seal face at various conditions and micro-pore geometry parameters is obtained from a solution of the Reynolds equation by finite difference method. An optimum micro-p... | eng_Latn | 46,164 |
RAST Model: simulation of tensiotraces to facilitate drophad engineering | Tensiography is a technique that determines the physical and chemical properties of a liquid by illuminating a growing pendant drop from within using a source fibre. Light reflected internally at the surface of the drop is recieved by a collector fibre and is converted into an electric signal called a tensiotrace, whic... | In this paper,the soil disturbance induced by the construction process of dry-cement jet mixing columns,the change of the radial stress and the tangential stress,and the analytial solution of the radial displacement are all analysed in this paper,the analytial solution to the boundary between the plastic section and th... | eng_Latn | 46,166 |
THE EFFECT OF POLYMER IN STEEL FIBER REINFORCED CEMENT COMPOSITES | Three kinds of polymers, polymethylaarylate emulsion (PAE) , polyvinyl formal solution (PV-FO),styrene acrylate copolymer emulsion(SA) are chosen to study the effect of polymer in steel fiber reinforced cement composites (SFRCC). The experimental results shonw that the bonding properties in SFRCC are remarkably im prov... | Most theories about macromolecular crowding focus on two ideas: the macromolecular nature of the crowder and entropy. For proteins, the volume excluded by the crowder favors compact native states over expanded denatured states, enhancing protein stability by decreasing the entropy of unfolding. We tested these ideas wi... | yue_Hant | 46,169 |
Flexural strength of composites: influences of polyethylene fiber reinforcement and type of composite | Main problem ::: The microfill veneering of hybrid composite restorations has been indicated to improve esthetics. Also, polyethylene fiber reinforcement has been proposed for use in composite restorations in high-stress clinical situations. However, minimal information in the literature addresses the influence of such... | A fluorinated elastomer composition exhibiting a less weight change in all plasma processings, including NF3 plasma processing, O 2 plasma processing and CF4 plasma processing, performed in the process of semiconductor manufacturing, thus having striking resistance to plasma. There is further provided a molding of the ... | eng_Latn | 46,172 |
Analysis of the Hydrodynamic Effects in Non-connecting Mechanical Seals with a Laser-textured Micro-pore Face | A calculation model is developed for mechanical seals with a laser-textured micro-pore face. The dimensionless hydrodynamic pressure distribution on the seal face at various conditions and micro-pore geometry parameters is obtained from a solution of the Reynolds equation by finite difference method. An optimum micro-p... | A device for surface sealing, in particular of landfills, dumps, heaps or the like, with a mineral sealing layer (1) provided with a water-permeable layer (2, 3; 2, 4; 10, 11, 3) is provided, characterized in that the water-permeable layer (2, 3; 2, 4; 10, 11, 3), sealing elements (2; 10), joints (3) and / or gaps (4) ... | eng_Latn | 46,174 |
Hypothesis to Explain the Preferred Orientations of Quartz and Calcite Produced During Syntectonic Recrystallization | The hypothesis presented in this paper explains the preferred orientations of quartz and calcite produced during Syntectonic recrystallization, in terms of the preferential growth of grains that are stable with respect to the translation mechanisms operative in particular stress fields. The common preferred orientation... | In IDSS,indexes for decision need usually be quantilized for further analysis and process.Bothconverse qualitative mapping(CQM)and property coordinate study and analysis are new methods in theory of property.The former is to quantilize indexes,and the latter is to study sample,then to get global satisfying degree of in... | eng_Latn | 46,183 |
Studies on Thermal Performance of Advanced Aerogel-Based Materials | The present work describes the development and assessment of aerogel-based brick fillings, as well as aerogel blow-in insulation with optimized thermal performance. The brick filling was developed within the EU Horizon 2020 project Wall-ACE. The focus of this work was the assessment of the brick filling developed by th... | PURPOSE OF THIS PATENT is the use of polymers SPECIAL GRAFT FOR IMPROVING THE RESISTANCE TO GASOLINE polycarbonates and / or polyester thermoplastic aromatic mixtures of polycarbonate and / or polyester WITH THESE POLYMERISED SPECIAL GRAFT AND, IF ANY, TERMOPLASTICAS WITH OTHER RESINS AND / OR EFFECTIVE AMOUNTS Customa... | eng_Latn | 46,190 |
Mechanical Properties of Cement Composites with Alternative Binders | The paper refers to previous research in the field recycling and reuse of secondary raw materials. It deals with utilization of micro-grounded recycled material and fly-ash as a partial substitution of Portland cement in cementitious composites. Six sets of test specimens with varying recipe were prepared for testing o... | The paper introducess the implemented conditions which colling recycle of flexible base on Ying-DaLine.It over all xpounds the investigation of road condlitions of original pavement,indoor trial study,determination of trial lot plan as well as completion of trial lot etc. | eng_Latn | 46,195 |
The elasto-plastic analysis of the soil disturbance induced by construction of dry-cement jet mixing cloumns | In this paper,the soil disturbance induced by the construction process of dry-cement jet mixing columns,the change of the radial stress and the tangential stress,and the analytial solution of the radial displacement are all analysed in this paper,the analytial solution to the boundary between the plastic section and th... | Abstract Many human operations have created a large population of small orbital debris in near Earth environment. The threat they represent for satellites is a major factor for the preparation of future space missions. Several experiments devoted to the study of this environment, as well as various materials exposed to... | eng_Latn | 46,208 |
Interactions between lead and different binders | The present study describes the interactions between lead nitrate, representative of soluble lead compounds, and seven cements based on either ordinary Portland cement (OPC) or ground-granulated blast furnace slag (GGBFS). Suspensions of cements contaminated by lead nitrate were investigated by means of electrical cond... | Abstract : JAYCOR determined that much of the pressure trace detail from the M-198 155mm howitzer with the M203 charge could be understood in terms of gas dynamics and the gun and ground geometry. The objective was to determine the feasibility of simulating the far field muzzle blast and to interpret the field data alr... | eng_Latn | 46,210 |
what are the benefits of polymers | The benefits of polymer additives in this study are shown to include improved shear stability, enhanced water resistance, and increased yield. Polymer additives are available in a variety of forms, including liquid, gel, powder and pellet, for ease of use.he benefits of polymer additives in this study are shown to incl... | What is gum base? Gum base is what gives chewing gum its âchew.â It is made of a combination of food-grade polymers, waxes and softeners that give gum the texture desired by consumers and enable it to effectively deliver sweetness, flavor and various other benefits, including dental benefits. | eng_Latn | 46,234 |
We investigate active learning with access to two distinct oracles: Label (which is standard) and Search (which is not). The Search oracle models the situation where a human searches a database to seed or counterexample an existing solution. Search is stronger than Label while being natural to implement in many situati... | We study the rates of convergence in generalization error achievable by active learning under various types of label noise. Additionally, we study the general problem of model selection for active learning with a nested hierarchy of hypothesis classes and propose an algorithm whose error rate provably converges to the ... | Blunt trauma abdomen rarely leads to gastrointestinal injury in children and isolated gastric rupture is even rarer presentation. We are reporting a case of isolated gastric rupture after fall from height in a three year old male child. | eng_Latn | 46,338 |
The Optimality of a Fast CNF Conversion and its Use with SAT | Despite the widespread use and study of Boolean satisfiability for a diverse range of problem domains, encoding of problems is usually given to general propositional logic with little or no discussion of the conversion to clause form that will be necessary. In this paper we present a fast and easy to implement conversi... | Short text classification problem need to face some special problems to be solved different from traditional text classification,such as short text length,features sparse.This paper uses the feature extended method based on theme Ontology.It can get better classification performance by considering the semantic relation... | eng_Latn | 46,371 |
Blood Analysis by Headspace Gas Chromatography: Does a deficient sample volume distort ethanol concentration? | This study was prompted by a recent judgment in the Royal Courts of Justice (Gregory v. Director of Public Prosecutions, 2002) in a case of driving a motor vehicle after consuming too much alcohol ... | In a recent paper, the authors introduced the notion of sample width for binary classifiers defined on the set of real numbers. It was shown that the performance of such classifiers could be quantified in terms of this sample width. This paper considers how to adapt the idea of sample width so that it can be applied in... | eng_Latn | 46,375 |
Blow up Analysis for Anomalous Granular Gases | We investigate in this article the long-time behaviour of the solutions to the energy-dependant, spatially-homogeneous, inelastic Boltzmann equation for hard spheres. This model describes a diluted gas composed of hard spheres under statistical description, that dissipates energy during collisions. We assume that the g... | This paper presents the application of Artificial Neural Network (ANN) modeling for the prediction of abrasion resistance of Persian handmade wool carpets. Four carpet constructional parameters, namely knot density, pile height, number of ply in pile yarn and pile yarn twist have been used as input parameters for ANN m... | eng_Latn | 46,376 |
Minimally invasive surgical video analysis: a powerful tool for surgical training and navigation | Analysis of minimally invasive surgical videos is a powerful tool to drive new solutions for achieving reproducible training programs, objective and transparent assessment systems and navigation tools to assist surgeons and ::: improve patient safety. This paper presents how video analysis contributes to the developmen... | Abstract Machine learning techniques have been widely applied to production processes with the aim of improving product quality, supporting decision-making, or implementing process diagnostics. These techniques proved particularly useful in the investment casting manufacturing industry, where huge variety of heterogene... | eng_Latn | 46,391 |
Gradiometer Response Analysis for Current Multipole Sources | The paper presents an analytical study on the first order gradiometer effects for current multipoles as biomagnetic field sources. A tensor representation of the field expansion up to the current octupole is given and applied for the multipole description of an elementary source model. The sensitivity of first order gr... | In this paper, the problems of measuring similarity in LDA face space using different metrics and fusing the associated classifiers are considered. A few similarity measures used in different pattern recognition applications, including the recently proposed Gradient Direction (GD) metric are reviewed. An automatic para... | kor_Hang | 46,392 |
Iterative learning algorithms for linear Gaussian observation models | In this paper, we consider a signal/parameter estimation problem that is based on a linear model structure and a given setting of statistical models with unknown hyperparameters. We consider several combinations of Gaussian and Laplacian models. We develop iterative algorithms based on two typical machine learning meth... | In this paper we consider an alpha-series process when the distribution of the first occurrence time of an event is assumed to be truncated normal distribution. Firstly, we study several nonparametric inferences including the Least-square estimate (LSE) and the Maximum-likelihood estimate (ML). Some estimators of the p... | eng_Latn | 46,413 |
Machine Learning Prediction of Response to Cardiac Resynchronization Therapy. | Background: Cardiac resynchronization therapy (CRT) has significant nonresponse rates. We assessed whether machine learning (ML) could predict CRT response beyond current guidelines. Methods: We an... | Summary In the pilot study, a new geomodeling technology is presented for developing 3D heterogonous geomodels for Athabasca McMurray (MCMR) oil sands. The geomodels were used to simulate SAGD thermal recovery. Both conventional SAGD completions and SAGD with ICD completions were tested. The simulation results show tha... | eng_Latn | 46,416 |
Material Cost Control Method Selection and Optimization for Coal Mine Production System | In view of the existing problem in coal material cost management which can′t be effectively solved by single cost control method,a new material cost control method was proposed which integrated activity cost method,responsibility cost method with standard cost variance,based on the deep analysis of production system an... | In this work we present a decision support system for the melanoma diagnosis using individual methods and the collaboration between these methods. The system designed uses a photograph of the lesion and it makes a preprocessing task to extract the region of interest. Then, several characteristics of the image are analy... | eng_Latn | 46,426 |
Efficient realization of classification using modified Haar DWT | The Haar discrete wavelet transform is used as inspiration for a new simple and fast algorithm to train multiclass dyadic decision trees. A localized ordering of the training data changes a multidimensional Haar transform into the one dimensional case, and avoids cache misses. The resulting tree has very simple structu... | A weightedL2 norm is introduced in which Markov operators, e.g., associated with noisy maps, are contracting provided the kernel (i.e., the transitional distribution) is smooth enough. This results in strong relaxational properties of noisy maps. Similar to this norm, integral functionals appear useful when studying sp... | eng_Latn | 46,437 |
A pilot study to determine whether machine learning methodologies using pre-treatment electroencephalography can predict the symptomatic response to clozapine therapy | Bias in error estimation when using cross-validation for model selection | Improvements on Cross-Validation: The 632+ Bootstrap Method | eng_Latn | 46,446 |
approximation by deep neural nets with . | The power of deeper networks for expressing natural functions | Delayed neuropathy after organophosphorus insecticide (Dipterex) poisoning: a clinical, electrophysiological and nerve biopsy study. | eng_Latn | 46,449 |
A Note on the Analysis of (Q.r) Policy : GLD Approximation vs Distribution Free Approach | In this article, we consider the analysis of a continuous review (Q, r) inventory model with a mixture of back orders and lost sales, assuming Weibull distribution for the lead time demand (LTD). The use of generalized λ-type distribution (GLD) in approximating the LTD is demonstrated. Through numerical studies, optima... | We address the problem of comparing the performance of classifiers. In this paper we study techniques for generating and evaluating bands on ROC curves. Historically this has been done using one-dimensional confidence intervals by freezing one variable - false-positiverate, or threshold on the classification scoring fu... | kor_Hang | 46,490 |
Density testing in a contaminated sample | We study non-parametric tests for checking parametric hypotheses about a multivariate density f of independent identically distributed random vectors Z1, Z2,... which are observed under additional noise with density ψ. The tests we propose are an extension of the test due to Bickel and Rosenblatt [On some global measur... | In the process of engineering machine's design, ansys damnified conduit's reliability, with Artificial Neural Network and Finite element methods, for example, the distortion conduit is corrodent or bended. this way give a very good solving way to imperfect structuress Reliability Analysis. | eng_Latn | 46,494 |
Lazy Transformation-Based Learning | We introduce a significant improvement for a relatively new machine learning method called Transformation-Based Learning. By applying a Monte Carlo strategy to randomly sample from the space of rules, rather than exhaustively analyzing all possible rules, we drastically reduce the memory and time costs of the algorithm... | This paper,applies the LSTAR model to an empirical study of the Shanghai stock A index.The results show that there is significant characteristic of nonlinear logistic transition in the Shanghai stock A market.The LSTAR model successfully detects the cyclical behavior and makes improvement in forecast performance relati... | eng_Latn | 46,513 |
Are real tongue movements easier to speech read than synthesized? | Speech perception studies with augmented reality displays in talking heads have shown that tongue reading abilities are weak initially, but that subjects become able to extract some information from intra-oral visualizations after a short training session. In this study, we investigate how the nature of the tongue move... | We focus on the problem of learning semantics from multimedia data associated with broadcast video documents. In this paper we propose to learn semantic concepts from multimodal sources based on style and context detectors, in combination with statistical classier ensembles. As a case study we present our method for de... | eng_Latn | 46,536 |
Cognitive Architectures for Sensory Processing | A Fast Learning Algorithm for Deep Belief Nets | Clinicopathological features and prognosis of mucinous cystic neoplasm with ovarian-type stroma: a multi-institutional study of the Japan pancreas society. | kor_Hang | 46,562 |
Alarm prediction in large-scale sensor networks — A case study in railroad | Support-vector networks | Learning internal representations by error propagation | eng_Latn | 46,591 |
Scaling Distributed Machine Learning with the Parameter Server | Machine Learning: A Probabilistic Perspective | Pilot study for evidence-based nursing management: improving the levels of job satisfaction, organizational commitment, and intent to leave among nurses in Turkey. | eng_Latn | 46,610 |
To Combat Multi-Class Imbalanced Problems by Means of Over-Sampling Techniques | A study of the behavior of several methods for balancing machine learning training data | A multiple resampling method for learning from imbalanced data sets | eng_Latn | 46,631 |
A Multiple Expert Approach to the Class Imbalance Problem Using Inverse Random under Sampling | A study of the behavior of several methods for balancing machine learning training data | Design and comparison of CMOS Current Mode Logic latches | eng_Latn | 46,642 |
a comparison of resampling techniques to handle the class imbalance problem in machine learning : conversion prediction of spotify users - a case study . | Predicting churn in mobile free-to-play games | Neural Networks for Automated Essay Grading | eng_Latn | 46,737 |
Ensembles of Recurrent Neural Networks for Robust Time Series Forecasting | Dropout: a simple way to prevent neural networks from overfitting | Tazarotene gel is safe and effective in the treatment of acne vulgaris: a multicenter, double-blind, vehicle-controlled study. | eng_Latn | 46,754 |
A Meta-Transfer Objective for Learning to Disentangle Causal Mechanisms | Understanding Machine Learning: From Theory to Algorithms | automation in agriculture : a study . | kor_Hang | 46,824 |
Confidence Bands for ROC Curves | We address the problem of comparing the performance of classifiers. In this paper we study techniques for generating and evaluating bands on ROC curves. Historically this has been done using one-dimensional confidence intervals by freezing one variable - false-positiverate, or threshold on the classification scoring fu... | By labrary analysis of coal seam roof and bottom rock samples which are obtained from Qinshui coalfield,the results are used to regression analyse with well logging visual resistivity and naturalγ,and then the regression equation is obtained,furtherly,using the equation to whole coalfield for forecasting overall distri... | eng_Latn | 46,899 |
A light and electron microscope study of rat abducens nucleus neurons projecting to the cerebellar flocculus. | Injection of horseradish peroxidase (HRP) into the cerebellar flocculus of the rat was employed to identify neurons in the abducens nucleus that project to the flocculus. The number, ultrastructural features and precise localisation of these neurons in the nucleus were examined. They were present bilaterally and repres... | Abstract : These abstracts provide a synopsis of research projects conducted by dental officers enrolled in the first, second, and third year residency programs at the National Naval Dental Center, Bethesda, Maryland, during the academic year 1977-1978. The projects were completed in partial fulfillment of the requirem... | eng_Latn | 47,017 |
in what lobes are present the association areas of the brain | Damage to the frontal lobe's association areas can cause impairment to mental abilities such as judging, planning and using initiative. The case study conducted on Phineas Gage, showed a dramatic change of personality after an accident damaged his frontal lobes. | Association area. Association areas can be located in the four cortical lobes of the Cerebral cortex. They are primarily involved in processing and integrating information from the senses and relate to higher mental abilities such as [[[thinking]] and reasoning. | eng_Latn | 47,106 |
which brain areas are involved in decision making | The Striatum Is a Decision-Making Hub. A February 2015 study, from the Okinawa Institute of Science and Technology (OIST) Graduate University in Japan, found that a key part of the brain involved in decision-making, called the striatum, appears to operate hierarchically within its three different sub-regions. | Location: Frontal and upper area of the cortexFunction: Carries out higher mental processes such as thinking, decision making, and planning. You use your frontal lobe nearly everyday. You use it to make decisions, such as what to eat or drink for breakfast in the morning, as well as for thinking or studying for a test. | eng_Latn | 47,185 |
Brain Activity during Simulated Deception: An Event-Related Functional Magnetic Resonance Study | Functional connectivity of the anterior cingulate cortex within the human frontal lobe: a brain-mapping meta-analysis | Spiky follicular mycosis fungoides: a clinicopathologic study of 8 cases | eng_Latn | 47,246 |
Analysis of the subcomponents and cortical terminations of the perisylvian superior longitudinal fasciculus: a fiber dissection and DTI tractography study | Perisylvian language networks of the human brain | Segmentation-Based Image Copy-Move Forgery Detection Scheme | eng_Latn | 47,247 |
where is amygdala | The amygdala is the name of the collection of nuclei found in the anterior portions of the temporal lobes in the brains of primates (4). The amygdala receives projections from frontal cortex, association cortex, temporal lobe, olfactory system and other parts of the limbic system. | The amygdala is also located in the temporal lobe, which processes emotions and memories. All these functions are important in studying temporal lobe epilepsy since they are affected in several ways during a temporal lobe seizure. | eng_Latn | 47,292 |
Connections Can Be Toxic: Terrorist Organizational Factors and the Pursuit of CBRN Terrorism | Despite plentiful scholarship relating to the prospect of terrorists utilizing chemical, biological, radiological, or nuclear (CBRN) weapons, little of this work is both quantitative in nature and global in scope. Leveraging open-source data, this study quantitatively explores factors influencing the terrorist organiza... | Abstract : The present study shows by example the potential amount of information available in a set of observations of targets where there are known relations between these targets. Known relations between objects significantly reduces the set of possible explanations behind a set of observations. The application here... | eng_Latn | 47,354 |
New Japan leader maps out robust policy | Newly elected Prime Minister Shinzo Abe on Friday pledged to start debate on revising Japan's pacifist constitution, study a collective defense system with the United States and reverse the country's fiscal troubles. | PARIS - French President Jacques Chirac told his government to push for the Paris Club of creditor nations to put a moratorium on debt payments owed by countries hit by tsunamis in southeast Asia. | eng_Latn | 47,454 |
a fascinating look at the dark underbelly of the military | Singer is renowned as an expert in the privatization of the military, and has appeared regularly on major news programs like CNN, CNBC, and Nightline. He documents how private companies have taken on an increasingly large role in military operations and support, both on the battlefield and in logistical and support rol... | This is a page turner, and a wealth of information that the lame stream media just will not tell you. WHY? Because it doesn't fit the narrative they are trying to spin.
This book gives you the ammunition to keep your ammunition. | eng_Latn | 47,477 |
Incompletely specified (Mealy type) sequential machines and their generalizations to infinite machines are discussed. Convenient algebraic techniques for the study of such machines are introduced. These techniques are based on binary relations and on an extension of the usual concept of homomorphism to multivalued mapp... | The object of this paper is to study the realization of a sequential machine from several smaller machines. The basic tools in this investigation are the partitions with the substitution property and the partition pairs. It is shown that to every (loop-free) realization of a sequential machine from n smaller machines c... | Berzelius failed to make use of Faraday's electrochemical laws in his laborious determination of equivalent weights. | eng_Latn | 48,504 |
The cooperative nonlinear scattering processes between two resonator modes stimulated by the excited atomic beam, ::: it is studied. It is demonstrated that these collective scattering phenomena between the Stokes and Anti-Stokes ::: resonator modes take place due to energy transfer between these fields. The quantum pr... | We study the performance and limitations of a coherent interface between collective atomic states and single photons. A quantized spin-wave excitation of an atomic sample inside an optical resonator is prepared probabilistically, stored, and adiabatically converted on demand into a sub-Poissonian photonic excitation of... | The antithesis of Specker's theorem states that every sequence eventually hounded away from each point of [0,1] is eventually bounded away from [0,1]. We show constructively (that is, with intuitionistic logic) that this is equivalent to a version of the fan theorem. | eng_Latn | 48,519 |
This paper starts with an intuitive notion of representational spaces, which is intended to provide an improved version of Kuhn's concept of paradigms. It then proceeds to study the following topics in terms of this new notion: incommensurability, paradigm change, explanation of anomalies, explanation of regularities, ... | In scientific explanations, the explanans theory is sometimes incommensurable with the explanandum empirical data. How is this possible, especially when the explanation is deductive in nature? This paper attempts to solve the puzzle without relying on any particular theory of reference. For us, it is rather obvious tha... | The existence of a winning strategy in the well-known Banach-Mazur game in a completely regular topological space X is proved to be equivalent to the generic existence of solutions of optimization problems generated by continuous functions in X | eng_Latn | 48,538 |
The study of uniformly r.e. classes of r.e. sets is a classical topic in recursion theory. In this context the problem to characterize the r.e. classes admitting a recursive enumeration without repetition or a one-one numbering had attracted a great deal of research effort. In 1958, Friedberg [F58], utilizing his insig... | Generalized numberings are an extension of Ershov's notion of numbering, based on partial combinatory algebra (pca) instead of the natural numbers. We study various algebraic properties of generalized numberings, relating properties of the numbering to properties of the pca. As in the lambda calculus, extensionality is... | generating families in the restricted three body problem is available in our book collection an online access to it is set as public so you can download it instantly. Our book servers saves in multiple locations, allowing you to get the most less latency time to download any of our books like this one. Merely said, the... | eng_Latn | 48,542 |
Steel strip to be used in the manufacture of carbonated beverage packs is treated to incorporate sulfur into its surface layers by diffusion during the annealing cycle that is normally conducted after cold rolling and cleaning operations. The steel is first treated with an aqueous sulfide solution, dried and then heate... | The 1990 papers of Cohen and Levesque (C&L) on rational interaction have been most influential. Their approach is based on a logical framework integrating the concepts of belief, action, time, and choice. On top of these they define notions of achievement goal, persistent goal, and intention. ::: ::: We here revisit th... | We prove that groups acting geometrically on delta-quasiconvex spaces contain no essential Baumslag-Solitar quotients as subgroups. This implies that they are translation discrete, meaning that the translation numbers of their nontorsion elements are bounded away from zero. | eng_Latn | 48,555 |
Deciding the inequivalence of context-free grammars with 1-letter terminal alphabet is σp-2--complete | Abstract This paper deals with the complexity of context-free grammars with 1-letter terminal alphabet. We study the complexity of the membership problem and the inequivalence problem. We show that the first problem is NP-complete and the second one is Σ P 2 -complete with respect to log-space reduction. The second res... | We describe some connections, via composition, between two functional spaces: the space of (sub)critical branching mechanisms and the space of Bernstein functions. The functions ${\bf e}_\alpha: x\to x^{\alpha}$ where $x\geq0$ and $0<\alpha\leq 1/2$, and in particular the critical parameter $\alpha=1/2$, play a disting... | eng_Latn | 48,577 |
T09-O-01 Unconsummated marriages: a separate clinical entity or simply a consequence of single sexual dysfunctions? | Starting from a rewiew of international literature about unconsummated marriages, our group found a big discrepance in the meaning that researchers gave to this expression. Urologists pointed up that the main causes were related to male defaillance in reaching and mantaining an adequate erection or controlling the ejac... | We continue the study of bottom-up unranked tree automata with equality and ::: disequality constraints between direct subtrees. In particular, we show that ::: the emptiness problem for the nondeterministic automata is decidable. In ::: addition, we show that the universality problem, in contrast, is undecidable. | eng_Latn | 48,599 |
Analysis on the flexible employment policy and study on the sharing model for faculty | this paper analyzes the system conflicts of flexible employment policy for faculty,such as the conflicting requirements for host and guest,conflicting on concurrent requirements,conflicting requirements for results sharing.The cause for the distance between theory and practice on flexible employment policy is illustrat... | I n this note we generalize the results of S.Kumar and B.Fisher [S.Kumar and B.Fisher, A common fixed point theorem in fuzzy metric space using property (E.A.) and implicit relation, Thai J. of Mathematics, Vol 8(2010) Number: 439-446] and we generalize the results by using weakly compatible mappings along with the pro... | eng_Latn | 48,604 |
Perpetuality for Full and Safe Composition (in a Constructive Setting) | We study perpetuality in calculi with explicit substitutions having full composition. A simple perpetual strategy is used to define strongly normalising terms inductively. This gives a simple argument to show preservation of β-strong normalisation as well as strong normalisation for typed terms. Particularly, the stron... | By studying relative literature and questionnaires,the authors studied the teaching mode,course system,training modes,teaching contents of continual education of the high school P.E. masters. Countermeasures were put forth as to the P.E. continual education,teaching mode and teaching contents. | eng_Latn | 48,617 |
SIGACT News Complexity Theory Column 10 | We survey techniques and results obtained over the past thirty years for space-bounded probabilistic computation. We use a common framework for the study of both finite-state automata and logarithmic-space-bounded Turing machines. In particular, we present recent advances on space-efficient deterministic simulation of ... | We give an almost complete classification of empty lattice simplices in dimension 4 using the conjectural results of Mori-Morrison-Morrison, later proved by Sankaran and Bober. In particular, all of these simplices correspond to cyclic quotient singularities, and all but finitely many of them have width bounded by 2. | kor_Hang | 48,618 |
Certificateless universal designated multi-verifiers sequential multi-signature scheme | Sequential multi-signature schemes were based on discrete logarithm problem or identity,and existed certificate management and key escrow problems.Universal designated multi-verifiers signature scheme allowed a signature holder to designate a set of signature verifiers,in such a way that only designated verifiers could... | We continue the study of bottom-up unranked tree automata with equality and ::: disequality constraints between direct subtrees. In particular, we show that ::: the emptiness problem for the nondeterministic automata is decidable. In ::: addition, we show that the universality problem, in contrast, is undecidable. | eng_Latn | 48,625 |
Fragments of Arithmetic and true sentences | By a theorem of R. Kaye, J. Paris and C. Dimitracopoulos, the class of the Πn+1-sentences true in the standard model is the only (up to deductive equivalence) consistent Πn+1-theory which extends the scheme of induction for parameter free Πn+1-formulas. Motivated by this result, we present a systematic study of extensi... | Phonological questions of the sort ‘Is segment or feature [x] a surface-phonetic event or a property of the underlying mental representation?’ may be answered in some cases by considering the duration | eng_Latn | 48,658 |
Preliminary Study and Its Application of Navigation Grading Standard Planning of the Tributary Channel in TGP Reservoir Area | The navigation condition of tributaries at TGP reservoir area has improved essentially but it still lacks navigation grading standard,for the normal grading standard of inland river takes no consideration of the effect of reservoir on the tributary channel navigation.So the normal grading standard can't be applied to d... | Abstract This paper extends the results of an earlier paper by the author (this journal, 1991). New subsystems of the combinatory logic TRC shown in that paper to be equivalent to NF are introduced; these systems are analogous to subsystems of NF with predicativity restrictions on set comprehension introduced and shown... | eng_Latn | 48,673 |
A modal logic internalizing normal proofs | In the proof-theoretic study of logic, the notion of normal proof has been understood and investigated as a metalogical property. Usually we formulate a system of logic, identify a class of proofs as normal proofs, and show that every proof in the system reduces to a corresponding normal proof. This paper develops a sy... | Let X and Y be two inflnite dimensional real or complex Banach spaces. In this note we determine the forms of surjective additive maps ` : L(X) ! L(Y ) preserving the kernel's dimension or the range's codimension. As consequence, we establish that ` : L(X) ! L(X) preserves the kernel (respectively, the range) if and on... | eng_Latn | 48,690 |
Whst's the relationship between these two theorems? When studying Computational Logic last year, we had to prove a theorem called "Compactness Theorem" ("Teorema de Compacidad in Spanish) which states that a set of formulae $\Gamma$ is satisfiable if and only if every finite subset of $\Gamma$ is satisfiable I am now ... | Why is compactness in logic called compactness? In logic, a semantics is said to be compact iff if every finite subset of a set of sentences has a model, then so to does the entire set. Most logic texts either don't explain the terminology, or allude to the topological property of compactness. I see an analogy as, gi... | Which of the following sets are compact in $\mathbb{M}_n(\mathbb{R})$[NBHM_PhD Screening Test-2013, Topology] Which of the following sets are compact in $\mathbb{M}_n(\mathbb{R})$ (a) The set of all upper triangular matrices all of whose eigenvalues satisfy $|\lambda|≤2 $. (b) The set of all real symmetric matrices all... | eng_Latn | 48,826 |
The problem of cation distribution in the layered tetradymite structure compound SnSb2Te4 is not completely resolved by means of classical X-ray or electron diffraction studies. Mossbauer absorption measurements, reported here, give experimental evidence for a symmetrical and distorted structural environment around the... | We report the discovery of a new superconductor from phase change materials SnSb2Te4. Single crystals of SnSb2Te4 were grown using a conventional melting-growth method. The sample resistance under pressure was measured using an originally designed diamond anvil cell with boron-doped diamond electrodes. The pressure dep... | We prove that groups acting geometrically on delta-quasiconvex spaces contain no essential Baumslag-Solitar quotients as subgroups. This implies that they are translation discrete, meaning that the translation numbers of their nontorsion elements are bounded away from zero. | eng_Latn | 48,981 |
Laser shortpulse heating of metallic substrates requires microscopic examination of the energy transport in the irradiated region. This is because of low specific heat capacity of electrons, which results in nonequilibrium temperature distribution in this region. In the present study, laser shortpulse heating of gold w... | Laser short-pulse heating of silicon film is considered and effect of the spatial distribution of absorption coefficient on electron and lattice site temperatures is examined. The high absorption region in the silicon film resembles the presence of absorbed particles in this region, since the absorption coefficient of ... | We prove that groups acting geometrically on delta-quasiconvex spaces contain no essential Baumslag-Solitar quotients as subgroups. This implies that they are translation discrete, meaning that the translation numbers of their nontorsion elements are bounded away from zero. | eng_Latn | 49,001 |
Long-range interparticle interactions are revealed in extremely dilute thermal atomic ensembles using highly sensitive nonlinear femtosecond spectroscopy. Delocalized excitons are detected in the atomic systems at particle densities where the mean interatomic distance (>10 μm) is much greater than the laser wavelength ... | Part I: Spectroscopy. 1: Spectroscopy of molecular beams: an overview. 2: Magnetic and electric resonance spectroscopy. 3: Beam-maser spectroscopy. 4: Quantum amplifiers and oscillators. 5: Metrology with molecular beams. 6: Infrared laser spectroscopy. 7: Visible and UV spectroscopy: physical aspects. 8: Photofragment... | We prove that groups acting geometrically on delta-quasiconvex spaces contain no essential Baumslag-Solitar quotients as subgroups. This implies that they are translation discrete, meaning that the translation numbers of their nontorsion elements are bounded away from zero. | eng_Latn | 49,019 |
Analysis of the Application of Deferred Income Tax under the Balance Sheet Method | From 1983,the income tax accounting which was the tax payable method to the current enterprise accounting standards of the balance sheet method in China has experienced several times. From the " book value" "tax base" concept to study of " temporary difference in tax payment" and " the temporary difference" deeply,this... | Preface Bose-Einstein Condensation in Nonlinear System New Aspects of Relaxation Processes in Cryogenic Solids Induction Transformer Coupled Discharges: Investigation & Application P-Type InGaAs/AlGaAs Quantum Well Structures for Infrared Photodetection A D-3He Spherical Tokamak Reactor with the Plasma Current Ramp-Up ... | eng_Latn | 49,053 |
Temperature profiles in Hamiltonian heat conduction | We study heat transport in the context of Hamiltonian and related stochastic models with nearest-neighbor coupling, and derive a universal law for the temperature profiles of a large class of such models. This law contains a parameter α, and is linear only when α = 1. The value of α depends on energy-exchange mechanism... | Abstract We performed a parametric study of the fine (fs) and hyperfine structure (hfs) for the even parity configurations of ionized tantalum (Ta II) using improved experimental fs and hfs data for 88 levels. A multi-configuration fitting procedure was performed for 47 configurations taking into account second-order p... | eng_Latn | 49,054 |
A simple strategy for quantitative analysis in the network optimization method | In recent years,as one of the national only large local networks,mobile communication networks in Shanghai China was becoming more and more complex.There existed some differences between the perception of business clients and the operators' network indicators in the voice services.In order to improve the customer exper... | We study the pseudogap Anderson model as a prototype system for critical Kondo destruction. We obtain finite-temperature (T) scaling functions near its quantum critical point, using a continuous-time quantum Monte Carlo method and also considering a dynamical large-N limit. We are able to determine the behavior of the ... | eng_Latn | 49,061 |
Pseudopotential calculations of Cd1−xZnxTe: Energy gaps and dielectric constants | Abstract In this paper we present a study of the energy gaps, dielectric constants and their composition dependence in zinc-blende Cd 1− x Zn x Te over the entire composition range ( x from 0 to 1) at room temperature using pseudopotential formalism under a modified virtual crystal approximation which takes into accoun... | We mainly explore the linear algebraic structure like SU(2) or SU(1,1) of the shift operators for some one-dimensional exactly solvable potentials in this paper. During such process, a set of method based on original diagonalizing technique is presented to construct those suitable operator elements, J0, J_\pm that sati... | eng_Latn | 49,062 |
Size affected dislocation activity in crystals: Advanced surface and grain boundary conditions | Abstract Extended crystal plasticity theories are well established to study size-dependent hardening of metals. Surface and inner grain boundary conditions play a significant role for crystals at small scales as they affect the dislocation activity and, hence, alter strength and strain hardening behavior. Conventional ... | We review recent developments in quantum scattering from mesoscopic systems. Various spatial geometries whose closed analogues show diffusive, localized or critical behaviour are considered. These are the features that cannot be described by the universal random matrix theory results. Instead, one has to go beyond this... | eng_Latn | 49,074 |
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