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query stringlengths 1 13.4k | pos stringlengths 1 61k | neg stringlengths 1 63.9k | query_lang stringclasses 147
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Tunable magnetism and spin-polarized electronic transport in graphene mediated by molecular functionalization of extended defects | Quantized alternate current on curved graphene | The Mediatorless Electroanalytical Sensing of Sulfide Utilizing Unmodified Graphitic Electrode Materials | eng_Latn | 11,600 |
The generation of nanostructured particles in high-temperature flames is important both for the control of emissions from combustion devices and for the synthesis of high-value chemicals for a variety of applications. The physiochemical processes that lead to the production of fine particles in turbulent flames are hig... | Flame synthesis represents a viable technique for large-scale production of titanium dioxide (TiO2) nanoparticles. A key ingredient in the modeling of this process is the description of the chemical kinetics, which include Ti oxidation, hydrocarbon fuel combustion, and chlorination. While detailed chemical mechanisms h... | We report enhancement of the mechanical stability of graphene through a one-step method to disperse gold nanoparticles on the pristine graphene without any added agent. | eng_Latn | 11,601 |
The paper studies the impact of gaseous water on the stability of micron aluminum powders in time at room temperature using the method of gravimetric analysis. The stability was studied using methods of thermal analysis during heating up to 1200 °С in air. The composition of products was analyzed using X-ray diffractio... | For testing the determination of the reactivity of aluminum powders it is proposed to use the following parameters: temperature of the beginning of oxidation, maximal oxidation rate, degree of transformation (degree of oxidation) of aluminum, relative thermal effect. Parameters for an evaluation of the reactivity of po... | We report enhancement of the mechanical stability of graphene through a one-step method to disperse gold nanoparticles on the pristine graphene without any added agent. | eng_Latn | 11,602 |
By making use of the induced transformation of graphite oxide (GO) to laser scribed graphene (LSG), the coated layers of GO/carbon nanotubes (CNTs) hybrid powders on flexible polyethylene terephthalate sheets were patterned into LSG/CNTs micro-supercapacitors (LSG/CNTs-MSCs). In the presence of CNTs with a smaller diam... | Laser reduction of graphene oxide is a promising technology for manufacturing advanced devices such as supercapacitors, sensors and transistors, owing to its distinctive advantages in selective and localized GO reduction, direct micro-nanoscale patterning, and no requirement for chemicals. However, the fundamental mech... | MLL1 regulates circadian promoters by depositing H3K4 trimethyl marks, whose levels are also modulated by the NAD+-dependent deacetylase SIRT1. SIRT1 is now shown to promote circadian deacetylation of MLL1, thus affecting MLL1's methyltransferase activity. | eng_Latn | 11,603 |
The research project 'An Evaluation of Transformational Change in NHS North East' examines the progress and success of National Health Service (NHS) organisations in north east England in implementing and embedding the North East Transformation System (NETS), a region-wide programme to improve healthcare quality and sa... | Objective ::: To test the effectiveness of a Bayesian model employing subjective probability estimates for predicting success and failure of health care improvement projects. | We report enhancement of the mechanical stability of graphene through a one-step method to disperse gold nanoparticles on the pristine graphene without any added agent. | eng_Latn | 11,604 |
It is well known and well established by scientific observation that a free neutron radioactively decays into a proton plus an electron plus an anti-neutrino with a mean life time before decay of about 900 seconds. ::: That established fact conflicts sharply with the hypothesis that the neutron is composed of two down ... | The rest mass of the neutron is exactly equal to the rest mass of a proton plus that of an electron plus the mass equivalent of the kinetic energy of those two particles after they have electrostatically accelerated from very far apart toward each other to a separation distance of a proton diameter. That fact is either... | We report enhancement of the mechanical stability of graphene through a one-step method to disperse gold nanoparticles on the pristine graphene without any added agent. | eng_Latn | 11,605 |
The key features of the complete, stable nickel—carbon phase diagram have been established at pressures up to 54 kbar, and these features have been directly related to the nucleation and growth characteristics of diamonds in this system. At pressures in excess of 52.5 kbar, a liquid+graphite+diamond eutectic is formed ... | High quality cubic diamond crystals were grown using the temperature gradient method at high pressure and high temperature (HPHT), in a new FeNi alloy as solvent. The crystals were grown at relatively low temperatures suitable for the growth of {100} faces. An increase in the radial growth rate, and inhibition of the a... | 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 | 11,606 |
A procedure is presented for investigating entanglement loss in polymer liquids during steady-shear flow. The method combines steady shearing with small-amplitude step strain measurements to determine the elastic modulus Ge of an entangled polymer network under steady-state flow conditions. In this study, superimposed ... | Non-reversing and reversing double-step strain flows on concentrated entangled polystyrene in diethyl phthalate or tricresyl phosphate were employed to characterize transient entanglement properties affecting subsequent chain stretch and relaxation. An extended Doi-Edwards tube theory for double-step strain flows was e... | We report enhancement of the mechanical stability of graphene through a one-step method to disperse gold nanoparticles on the pristine graphene without any added agent. | eng_Latn | 11,607 |
Vanadium nitride and nitrogen-doped graphene nanosheet (G) hybrid materials were prepared by a facile sol–gel method combined with a thermal treatment at 800 °C under ammonia atmosphere. It was found that VN nanoparticles adhered to the surface of nitrogen-doped graphene nanosheets and/or were embedded in the graphene ... | Red phosphorus (RP) is considered to be one of the promising anode materials for lithium-ion batteries (LIBs) on account of its high theoretical capacity (2596 mAh g−1), abundant resources, and environmental friendliness. However, the intrinsic insulating nature and large volume change during lithium insertion/extracti... | The self-healing mechanism of radiation-induced defects in nickel–graphene nanocomposite is investigated by atomistic simulations. Compared with pure nickel, nickel–graphene nanocomposite has less defects remained in the bulk region after collision cascades, illustrating self-healing performance. Nickel–graphene interf... | eng_Latn | 11,608 |
Ni-YSZ (nickel - yttria stabilized zirconia) is a material widely used for electrodes and supports in solid oxide electrochemical cells. The mechanical and electrochemical performance of these layers, and thus the whole cell, depends on their microstructure. During the initial operation of a cell, NiO is reduced to Ni.... | The BOA beamline at the Swiss spallation neutron source SINQ at Paul Scherrer Institut is a flexible instrument used mainly for testing novel techniques and devices for neutron scattering and optics, but, due to the large and relatively homogeneous field of view, it can be successfully used for experiments in the field... | We report enhancement of the mechanical stability of graphene through a one-step method to disperse gold nanoparticles on the pristine graphene without any added agent. | eng_Latn | 11,609 |
This paper is focused on how the spectroscopic properties of conjugated polymers evolve in the size range between single polymer chains and the bulk material. The measurements used single-particle spectroscopy techniques and include both static and dynamic measurements. The main observation of this work is that the spe... | Despite intense, long-term interest in organic semiconductors from both an applied and fundamental perspective, key aspects of the electronic properties of these materials remain poorly defined. A particularly challenging problem is the molecular nature of positive charge carriers, that is, holes or oxidized species in... | We report enhancement of the mechanical stability of graphene through a one-step method to disperse gold nanoparticles on the pristine graphene without any added agent. | eng_Latn | 11,610 |
We report here on an in situ experimental analysis of the growth processes of tin dioxide nanoparticles (with mean particle radius of less than 5nm) and the oriented attachment of these particles onto SnO2 nanobelts, used as single crystalline substrates, through electron irradiation by transmission electron microscopy... | Ion beam irradiation is a potential tool for phase formation and material modification as a non-equilibrium technique. Localized rise in temperature and ultra fast (∼10−12 s) dissipations of impinging energy make it an attractive tool for metastable phase formation. As a matter of fact, a major component of materials s... | We report enhancement of the mechanical stability of graphene through a one-step method to disperse gold nanoparticles on the pristine graphene without any added agent. | eng_Latn | 11,611 |
Scanning electron microscopy (SEM) is a practical tool to determine the dimensions of nanometer-scale features. Conventional width measurements use arbitrary criteria, e.g., a 50 % threshold crossing, to assign feature boundaries in the measured SEM intensity profile. To estimate the errors associated with such a proce... | We assessed two approaches for determining shell thicknesses of core–shell nanoparticles (NPs) by X-ray photoelectron spectroscopy (XPS). These assessments were based on simulations of photoelectron peak intensities for Au-core/C-shell, C-core/Au-shell, Cu-core/Al-shell, and Al-core/Cu-shell NPs with a wide range of co... | We report enhancement of the mechanical stability of graphene through a one-step method to disperse gold nanoparticles on the pristine graphene without any added agent. | eng_Latn | 11,612 |
We grow high-density, aligned single wall carbon nanotube mats for use as interconnects in integrated circuits by remote plasma chemical vapor deposition from a Fe–Al2O3 thin film catalyst. We carry out extensive Raman characterization of the resulting mats, and find that this catalyst system gives rise to a broad rang... | Strong viscous behavior has been discovered in nanotube mats, as observed in boron nitride nanotube (BNNT) mats under low-amplitude dynamic flexure. The solid part of the mat (BNNTs) exhibits strong viscous character (loss tangent up to 13), strong elastic character (storage modulus up to 2.3 GPa), and strong mechanica... | Background ::: Serum calcium (Ca) and inorganic phosphate (Pi) concentrations and calcium-phosphate product (CPP) levels are positively associated with worse outcomes in patients with chronic kidney disease, but there are few data for Pi or Ca and none for CPP in patients with chronic heart failure (CHF). | eng_Latn | 11,613 |
The size distribution of particles in dispersions is an important property that is usually measured. In many cases, however, theoretical or semi-empirical models are developed to predict these distributions. The models, none the less, come with subtle constraints that limit the regimes of their applicability. At presen... | The solutions to the kinetic equation of coagulation are reviewed particularly from the standpoint of their asymptotic behavior. The coagulation equation is studied theoretically by means of a new similarity transformation. For the case of constant collision frequency factor, the transformed spectrum function approache... | We report enhancement of the mechanical stability of graphene through a one-step method to disperse gold nanoparticles on the pristine graphene without any added agent. | eng_Latn | 11,614 |
The article begins with an account of prewar German work, particularly that of von Ardenne, who established the theoretical basis of a scanning electron microscope and constructed an instrument which was primarily intended to overcome chromatic aberration when relatively thick specimens were examined by transmission. N... | Research concerning nano-materials (metal-organic frameworks (MOFs), zeolites, mesoporous silicas, etc.) and the nano-scale, including potential barriers for the particulates to diffusion to/from is of increasing importance to the understanding of the catalytic utility of porous materials when combined with any potenti... | Environmental transmission electron microscopy is recently of a great interest as well as ultra-high resolution observation using aberration correctors. This method is a kind of extension of so-called "in-situ electron microscopy" performed since the 1970's. It nowadays focuses on dynamic observation with atomic resolu... | eng_Latn | 11,615 |
The formation of covalent bonds to single-walled carbon nanotube (SWNT) or graphene surfaces usually leads to a decrease in the electrical conductivity and mobility as a result of the structural rehybridization of the functionalized carbon atoms from sp2 to sp3. In the present study, we explore the effect of metal depo... | The continuous downward scaling in integrated circuit (IC) technologies has led to rapid shrinking of transistor and interconnect feature sizes. While scaling benefits transistors by increasing the switching speed and reducing the power consumption, it has an adverse impact on interconnects by degrading its electrical ... | A unique approach using the large photoacoustic effect of single-walled carbon nanotubes (SWNTs) for targeting and selective destruction of cancer cells is demonstrated. SWNTs exhibit a large photoacoustic effect in suspension under the irradiation of a 1064-nm Q-switched millisecond pulsed laser and trigger a firecrac... | eng_Latn | 11,616 |
After a period of considerable and sustained hegemony, many commentators have argued that contemporary processes of globalisation are acting as a challenge to nation state sovereignty. The paper argues that geographers need to focus on the ways in which the nation state continues to act, albeit in a modified manner, wi... | A century ago, the American Geographical Society (AGS), then a half-century old, helped give birth to the Association of American Geographers (AAG), succored the fledgling association, and long rendered it invaluable support. By the mid-twentieth century, the shoe was on the other foot: a mature and much larger AAG was... | We report enhancement of the mechanical stability of graphene through a one-step method to disperse gold nanoparticles on the pristine graphene without any added agent. | eng_Latn | 11,617 |
The article examines the American political efforts to bring about an agreement between Israel and Egypt between 1967 and 1969 and analyses the reasons for their failure. But it does not focus exclusively on the Americans; it also outlines the alternatives for Egyptian action during the period in question and looks at ... | The Nation of Islam’s influence has extended beyond the United States. This Black American Muslim movement has used the intersection of race and religion to construct a blueprint of liberation that has bonded people of African descent throughout the Diaspora. Their transnational dimensions and ideas of freedom, justice... | We report enhancement of the mechanical stability of graphene through a one-step method to disperse gold nanoparticles on the pristine graphene without any added agent. | eng_Latn | 11,618 |
Used as a bare active material or component in hybrids, graphene has been the subject of numerous studies in recent years. Indeed, from the first report that appeared in late July 2008, almost 1600 papers were published as of the end 2015 that investigated the properties of graphene as an anode material for lithium-ion... | Carbon nanosheets were successfully prepared from easily available and low-cost petroleum asphalt via a facile and recyclable molten-salt method. The as-made carbon nanosheets exhibit excellent performance on energy storage both for lithium-ion batteries (LIBs) and sodium-ion batteries (SIBs): as the anode of LIBs, the... | We report enhancement of the mechanical stability of graphene through a one-step method to disperse gold nanoparticles on the pristine graphene without any added agent. | eng_Latn | 11,619 |
The photopolymer material of poly(vinyl cinnamate) (PVCi) is known as a liquid-crystal (LC) alignment film whose surface azimuthal anchoring energy is relatively small. However, the results of an experiment on LC reorientation under an electric field suggest that the genuine azimuthal anchoring energy is one order of m... | A series of experiments [C. Poulard and A. M. Cazabat, “Spontaneous spreading of nematic liquid crystals,” Langmuir 21, 6270 (2005)] on spreading droplets of nematic liquid crystal (NLC) reveals a surprisingly rich variety of behaviors. Small droplets can either be arrested in their spreading, spread stably, destabiliz... | It is desirable to develop an energy storage system with both high energy density and high power density along with excellent cycling stability to meet practical application requirements. Lithium-ion capacitors (LICs) are very promising due to the combined merits of the high power density of electrochemical capacitors ... | eng_Latn | 11,620 |
A detailed description of plasma–solid interaction is desirable for many technological applications such as plasma surface treatment and also for the development of plasma diagnostic techniques. To solve this rather complex problem, especially in the case of highly collisional or chemically active plasmas, methods of c... | The results of 2D particle and 3D particle/uid hybrid simulations are presented. We investigated a plasma sheath formed near substrates of dierent shapes and showed the inuence of magnetic eld on the sheath structure and particle uxes to the substrate. The studied solids were a cylindrical and a planar probe and a groo... | We report enhancement of the mechanical stability of graphene through a one-step method to disperse gold nanoparticles on the pristine graphene without any added agent. | eng_Latn | 11,621 |
Velocity diffusion has been observed to be significantly above that given by quasilinear theory in both test‐particle and self‐consistent simulations of the dynamics of turbulent electrostatic fields. Test‐particle simulations and analytic calculations for motion in a set of randomly phased waves find the diffusion coe... | A system of N particles \(\xi ^N = x_1 ,\upsilon_1,...,x_N ,\upsilon _N )\) interacting self-consistently with one wave Z = A exp(iφ) is considered. Given initial data (Z(N)(0), ξ N (0)), it evolves according to Hamiltonian dynamics to (Z(N)(t), ξ N (t)). In the limit N → ∞, this generates a Vlasov-like kinetic equatio... | We report enhancement of the mechanical stability of graphene through a one-step method to disperse gold nanoparticles on the pristine graphene without any added agent. | eng_Latn | 11,622 |
The investigation of energy transfer properties in photosynthetic multi-protein networks gives insight into their underlying design principles.Here, we discuss excitonic energy transfer mechanisms of the photosystem II (PS-II) C$_2$S$_2$M$_2$ supercomplex, which is the largest isolated functional unit of the photosynth... | Electronic and Vibrational Molecular States. Dynamics of Isolated and Open Quantum Systems. Vibrational Energy Relaxation and Redistribution. Intramolecular Electronic Transitions. Electron Transfer. Proton Transfer. Exciton Transfer. Concluding Remarks. | We report enhancement of the mechanical stability of graphene through a one-step method to disperse gold nanoparticles on the pristine graphene without any added agent. | eng_Latn | 11,623 |
Finite-element modeling for efficient organic bulk-heterojunction photovoltaics is presented. Given the complexity of the architecture, it has been hard to devise a sufficiently compact description of the physics of charge and exciton dynamics. This paper delineates the most essential set of equations that allow to rep... | Nanostructured and chemically modified graphene-based nanomaterials possess intriguing properties for their incorporation as an active component in a wide spectrum of optoelectronic architectures. From a technological point of view, this aspect brings many new opportunities to the now well-known atomically thin carbon ... | 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 | 11,624 |
Organizations store their information in electronic or paper documents. This information is severely underutilized in the daily work of most organizations. Because there are no effective means to access the documents, employees do not find relevant information, or are not even aware of its existence. We describe Inform... | In recent years, we have been developing a new framework for acquiring medical knowledge from Encyclopedic texts. This framework consists of three major parts. The first part is an extended high-level conceptual language (called HLCL 1.1) for use by knowledge engineers to formalize knowledge texts in an encyclopedia. T... | We report enhancement of the mechanical stability of graphene through a one-step method to disperse gold nanoparticles on the pristine graphene without any added agent. | eng_Latn | 11,625 |
The capture/push behavior of a particle in front of a solidification interface was analyzed theoretically and experimentally in this work. Van der Waals force, viscous force, and force due to interfacial energy played important roles in the particle capture/push process. Directional solidification experiments were cond... | In this article, a new mechanism so-called wet cluster engulfment and the related formula were proposed to predict the critical solidification velocity for nanoparticles engulfment by a solidification front. According to the mechanism, the most important issue in the engulfing of the nanoparticles is the aggregation of... | We report enhancement of the mechanical stability of graphene through a one-step method to disperse gold nanoparticles on the pristine graphene without any added agent. | eng_Latn | 11,626 |
Manipulating the morphology of inorganic nanostructures, such as their chirality and branching structure, has been actively pursued as a means of controlling their electrical, optical and mechanical properties. Notable examples of chiral inorganic nanostructures include carbon nanotubes, gold multishell nanowires, meso... | The following article is an edited transcript based on the MRS Medalist presentation given by Charles M. Lieber of Harvard University on December 4, 2002, at the Materials Research Society Fall Meeting in Boston. Lieber received the Medal "for controlled synthesis of nanowire and nanotube materials." This presentation ... | 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 | 11,627 |
A concept of two steps voltage increasing mode derived from constant voltage mode was developed to fabricate micro-arc oxidation (MAO) coatings on ZK60 Mg alloy. Growth characteristic, microstructure and corrosion resistance of coatings were investigated and compared with the constant voltage mode. An additional and di... | The effects of different negative voltages on micro-arc oxidation coating fabricated on ZK60 Mg alloy were investigated under two steps increasing mode of 280-360V. The microstructure, coating thickness and corrosion resistance of coatings were evaluated by scanning electron microscopy (SEM), energy disperse spectrosco... | We report enhancement of the mechanical stability of graphene through a one-step method to disperse gold nanoparticles on the pristine graphene without any added agent. | eng_Latn | 11,628 |
Nanomaterials offer large reaction surfaces making for high-rate lithium-ion transfer and fewer constraints to avoid fracture. Nevertheless, surface effect arises inevitably due to so high surface-to-volume ratio. Accordingly, the fundamental framework of surface stress is involved to study diffusion-induced stresses w... | This paper presents a comprehensive model coupling the effects of hydrostatic stress, surface/interface stress, phase transformation and the structure of electrodes. First, the governing equation o... | 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 | 11,629 |
Hexagonal boron nitride ( h BN) monolayers have attracted considerable interest as atomically thin sp 2 -hybridized sheets that are readily synthesized on various metal supports. They complement the library of two-dimensional materials including graphene and open perspectives for van der Waals heterostructures. In this... | Near-ambient pressure X-ray photoelectron spectroscopy and scanning tunneling microscopy experiments are performed to study the intercalation of oxygen and nitrogen at different partial gas pressures and different temperatures in the graphene/Ni/Ir(111) system of different morphologies. We performed detailed experiment... | 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 | 11,630 |
Molecular-dynamics simulations were used to investigate the storage capacity of hydrogen in single-walled carbon nanotubes (SWNT's) and the strain of nanotube under the interactions between the stored hydrogen molecules and the SWNT. The storage capacities inside SWNT's increase with the increase of tube diameters. For... | Theoretical (thermodynamic) and experimental backgrounds are considered for developing a much simpler, more technological and effective method (in comparison with the known megabar compression dynamic and static meth- ods) of producing a high-density solid molecular ("reversible") hydrogen carrier by means of hydrogen ... | 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 | 11,631 |
There is the need for a clear understanding of the transition process and economic development in Ethiopia. The country’s move towards a free market economy will be critically analyzed as an important step to fight poverty. This will also raise the question of what policies need to be changed to make the nation competi... | The failures of communism outline of a new society the capacity to change how great? relevant analogies in economic history sequencing - shock therapy versus gradualism internal liberalization opening the economy currency reform macroeconomic stabilization privatization. | We report enhancement of the mechanical stability of graphene through a one-step method to disperse gold nanoparticles on the pristine graphene without any added agent. | eng_Latn | 11,632 |
Methods of preparing silicon nitride and materials as powders, and as materials consolidated from the powders, and also as films and coatings, are reviewed. Information on the structure and on the physicochemical properties of silicon nitride materials is analysed and discussed. The bibliography includes 172 references... | A ceramic with dense nanosize structure was obtained by conventional sintering of samples formed from nanosize Si3N4 powder with Al2O3 and Y2O3 additives by cold isostatic pressing. The microstructure and density of the ceramic obtained were investigated. The technological conditions for obtaining silicon nitride ceram... | We report enhancement of the mechanical stability of graphene through a one-step method to disperse gold nanoparticles on the pristine graphene without any added agent. | eng_Latn | 11,633 |
Our analysis of the experimental data related to nonphotochemical laser induced nucleation in solutions leads to the inevitable conclusion that the phase transformation is initiated by particles that are metallic in nature. This conclusion appears paradoxical because the final products are dielectric crystals. We show ... | We consider the effect of metal electrodes on the polarizability and nucleation of metal phases responsible for the operations of the emerging solid state memory. Our analysis is based on the image charge approach. We find results for point dipoles in static and oscillatory fields as well as an erect cylindrical nucleu... | We report enhancement of the mechanical stability of graphene through a one-step method to disperse gold nanoparticles on the pristine graphene without any added agent. | eng_Latn | 11,634 |
Subwavelength diameter microfiber with carbon nanotube (CNT) cladding attracts wide attention for its significant effect on evanescent coupling and interaction. In this paper, the physical mechanism and spatial expression of the light field near CNT coated microfiber are analyzed by the electromagnetic calculation and ... | Graphene has been attracting great interest as the basis of novel photonic devices and sensors due to its many unique optical and electric properties that are quite different from conventional film materials. In this paper, we propose and demonstrate a novel hybrid graphene-microfiber waveguide structure and its applic... | Carbon nanotubes (CNTs) and carbon nanofibers (CNFs) are potential materials for the most advanced silicon devices and circuits due to their excellent electrical properties such as high current capacity and tolerance to electromigration. In addition, at high frequencies, these materials exhibit transport behavior which... | eng_Latn | 11,635 |
The authors report on a new tungsten-hardmask-based diamond dry-etch process for fabricating diamond zone plate lenses with a high aspect ratio. The tungsten hardmask is structured by electron-beam lithography, together with Cl2/O2 and SF6/O2 reactive ion etching in a trilayer resist-chromium-tungsten stack. The underl... | Focusing hard x-ray free-electron laser radiation with extremely high fluence sets stringent demands on the x-ray optics. Any material placed in an intense x-ray beam is at risk of being damaged. Therefore, it is crucial to find the damage thresholds for focusing optics. In this paper we report experimental results 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 | 11,636 |
Graphene provides a fascinating testbed for new physics and exciting opportunities for future applications based on quantum phenomena. To understand the coherent flow of electrons through a graphene device, we employ a nanoscale probe that can access the relevant length scales--the tip of a liquid-He-cooled scanning pr... | The temperature effect of quantum interference on resistivity is examined in monolayer graphene, with experimental results showing that the amplitude of the conductance fluctuation increases as temperature decreases. We find that this behavior can be attributed to the decrease in the inelastic scattering (dephasing) ra... | 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 | 11,637 |
We present a simple yet effective one-step approach with a specially designed substrate holder to synthesize single crystalline ternary CdSxSe1–x nanobelts with uniform chemical stoichiometry and accurately controllable compositions (0 ≤ x ≤ 1). The micromorphologies and detailed structures of these nanobelts were stud... | Arrays of ZnO/CdSSe core/shell nanowires with shells of tunable band gaps represent a class of interesting hybrid nanomaterials with unique optical and photoelectrical properties due to their type II heterojunctions and chemical compositions. In this work, we demonstrate that direct focused laser beam irradiation is ab... | 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 | 11,638 |
This paper presents a semi-analytical model (SAM) for three-dimensional frictional magnetoelectroelastic (MEE) contact of two multiferroic bodies, together with a set of effective solution methods. The frequency response functions (FRFs) for the MEE fields in a multiferroic half-space are analytically derived with resp... | Author(s): Zhang, Xin; Wang, Q Jane; Harrison, Katharine L; Jungjohann, Katherine; Boyce, Brad L; Roberts, Scott A; Attia, Peter M; Harris, Stephen J | © The Author(s) 2019. Published by ECS. We offer an explanation for how dendrite growth can be inhibited when Li metal pouch cells are subjected to external loads, even... | We report enhancement of the mechanical stability of graphene through a one-step method to disperse gold nanoparticles on the pristine graphene without any added agent. | eng_Latn | 11,639 |
The resulting stationary states and scattering properties of an effective potential brought about by embedding a quantum well in another well are investigated in this work. The composite well system is constructed via a superposition of modified Poeschl - Teller potential wells. The energy spectrum in each composite we... | Part I: One-Body Problems without Spin. One-Dimensional Problems. Problems of Two or Three Degrees of Freedom without Spherical Symmetry. The Angular Momentum. Potentials of Spherical Symmetry. The Wentzel-Kramers Brillouin (WKB) Approximation. The Magnetic Field.- Part II: Particles with Spin. One-Body Problems. Two-a... | We report enhancement of the mechanical stability of graphene through a one-step method to disperse gold nanoparticles on the pristine graphene without any added agent. | eng_Latn | 11,640 |
Progress in electrorheology was reviewed for micro- and nano-suspensions. Characteristics required for the suspensions and related materials were shown. Some proposed models were discussed. Electrically induced microstructures, yielding, and related physical properties were also discussed in terms of theory and experim... | Electro-rheological (ER) nano-suspensions based on titanium dioxide nano-particles with particle diameter around 400 nm and a chemically modified silicone oil with a viscosity of 0.04 Pa·s were prepared. Microgap flow behavior in the absence of an external electric field and the ER responses were investigated in relati... | We report enhancement of the mechanical stability of graphene through a one-step method to disperse gold nanoparticles on the pristine graphene without any added agent. | eng_Latn | 11,641 |
The interfacial thermal resistance (ITR) between a carbon nanotube (CNT) and adjoining carbon, silicon, or copper substrate is investigated through non-equilibrium molecular dynamics simulation (NEMD). The theoretical phonon transmission also is calculated using a simplified form of the diffuse mismatch model (DMM) wit... | The miniaturization in energy devices and their critical needs for heat dissipation have facilitated research on exceptional thermal properties of novel low-dimensional materials. Current studies demonstrated the main challenge for solving thermal transport issues is the large thermal contact resistance across these lo... | Experimental and theoretical analyses were used to study the effect of thermal contact resistance in two materials, aluminum and graphite. Experimental investigation included the use of a modern laser flash device to measure the effective thermal conductivity of each material for three different cases: in direct contac... | eng_Latn | 11,642 |
We report on molecular dynamic calculations of combined tension–torsion of chiral single-wall nanotubes. We work within the framework of objective structures that exploits symmetry groups to enable torsion of chiral nanotubes, in addition to non-equilibrium extension. We apply the method to study the mechanical respons... | While considerable efforts in the form of (numerical) atomistic simulations have been expended to understand the mechanics of defect formation under applied strain, analogous analytical efforts have been rather few. In this work, based on the physics at the nanoscale, defect nucleation in single-walled carbon nanotubes... | 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 | 11,643 |
An important and so far neglected class of structural elements affecting the overall properties of metal oxide nanopowders are interfaces between individual nanocrystals. In this work, we show experimentally that these defects inside a powder of compressed MgO nanocubes are subject to photoexcitation in the UV light ra... | The nature and magnitude of the optical gaps of rocksalt alkaline earth (MgO, CaO, SrO, MgS, MgSe) and transition metal chalcogenide (CdO, PbS) nanoparticles are studied using time-dependent density functional theory (TD-DFT) calculations on (MX)32 nanoparticles. We demonstrate, just as we previously showed for MgO, th... | We report enhancement of the mechanical stability of graphene through a one-step method to disperse gold nanoparticles on the pristine graphene without any added agent. | eng_Latn | 11,644 |
Rejecting simplifying notions of globalisation as a macro-economic force, this book provides a grounded picture of the various ways in which people's biographies are tied up with the global cultural economy. The main argument of the book is that the globalisation of lives is experienced by people as the 'extension' of ... | In the context of globalization and European integration, the interplay between social boundaries and territorially defined political borders becomes more complex in that they become increasingly delinked. In some regional settings, this might imply that while the political border is softened, the socio-cultural closur... | We report enhancement of the mechanical stability of graphene through a one-step method to disperse gold nanoparticles on the pristine graphene without any added agent. | eng_Latn | 11,645 |
Grinding, as the last process of most products, directly affect the machining accuracy and surface quality of the product. Multi-parameter input and output and nonlinear mapping between the parameters of the grinding process play the most important part of computer simulation applied to grinding process. In this paper,... | Materials engineers easily recognize that the conduction of heat within solids is fundamental to understanding and controlling many processes. We could cite numerous examples to emphasize the importance of this topic. Some important applications that fall in this category include estimating heat losses from process equ... | We report enhancement of the mechanical stability of graphene through a one-step method to disperse gold nanoparticles on the pristine graphene without any added agent. | eng_Latn | 11,646 |
We investigate one-dimensional aperiodic multilayer microstructures in order to achieve near-total absorptions at preselected wavelengths in a graphene monolayer. The proposed structures are designed using a genetic optimization algorithm coupled to a transfer matrix code. Coupled-mode-theory analysis, consistent with ... | Graphene has unique properties which make it an ideal material for photonic and optoelectronic devices. However, the low light absorption in monolayer graphene seriously limits its practical applications. In order to greatly enhance the light absorption of graphene, many graphene-based structures have been developed to... | 134. This article is concerned with the thermodynamic formulation of the Activated Complex Theory (otherwise called Transition State Theory or Absolute Rate Theory). ["Comments by the Editor" incorrectly cites Golden article as being from 1977. It's actually from 1971.] | eng_Latn | 11,647 |
Consumer electronics have increasingly relied on ultra-thin glass screen due to its transparency, scalability, and cost. In particular, display technology relies on integrating light-emitting diodes with display panel as a source for backlighting. In this study, we undertook the challenge of integrating light emitters ... | The catalyst-free molecular beam epitaxial growth of GaN nanowires and their heterostructures on a SiOx template is studied in detail. It was found that by optimizing the growth temperature, highly uniform and vertically aligned GaN nanowires and InGaN/GaN heterostructures with excellent optical properties can be obtai... | Let E be an arbitrary directed graph and let K be any field. It is shown that the Leavitt path algebra A of the graph E over the field K is a Zorn ring if and only if the graph E satisfies the Condition (L), that is, every cycle in E has an exit. It is also shown that the Leavitt path algebra A is a weakly regular ring... | eng_Latn | 11,648 |
We present an algorithm, instantiated in a freeware application called MeanTimes, that permits the parameterized production and transformation of a hierarchy of well-formed rhythms. Each "higher" rhythmic level fills in the gaps of all "lower" levels, and up to six such levels can be simultaneously sounded. MeanTimes h... | In a comprehensive work with important implications for tuning theory and musicology, Easley Blackwood, a distinguished-composer, establishes a mathematical basis for the family of diatonic tunings generated by combinations of perfect fifths and octaves.Originally published in 1986.The Princeton Legacy Library uses the... | We report enhancement of the mechanical stability of graphene through a one-step method to disperse gold nanoparticles on the pristine graphene without any added agent. | eng_Latn | 11,649 |
This paper predicts the evolution of nanopores during anodic oxidation of aluminum. The theory is based on approximate nonlinear evolution equations of the interfaces, which reproduce all the observed patterns, and using them for stability analysis. The pore structure in the early stages is described by the Damped Kura... | The self-organization of porous nanostructures in anodic metal oxide is consid- ered. A mathematical model which incorporates the chemical reactions at the metal-oxide and oxide-electrolyte interfaces and elastic stress caused by the electrostrictive efiects is de- veloped. It is shown through linear stability analysis... | 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 | 11,650 |
We study the Rayleigh instability of polystyrene (PS) thin films coated in the nanopores of anodic aluminum oxide (AAO) templates. After thermal annealing, the surface of the PS thin films undulates and the nanostructures transform from nanotubes to Rayleigh-instability-induced nanostructures (short nanorods with encap... | Rayleigh instabilities in thin polymer films confined within nanoporous alumina membranes were studied. Thin films of poly(methyl methacrylate) (PMMA) were prepared by filling cylindrical nanopores in an anodic aluminum oxide (AAO) membrane with a PMMA solution in chloroform followed by solvent evaporation. When the PM... | We report enhancement of the mechanical stability of graphene through a one-step method to disperse gold nanoparticles on the pristine graphene without any added agent. | eng_Latn | 11,651 |
The 2D janus hybrid (gold NPs/graphene) superstructures were built via a rapid, solventless sputtering method in 10 seconds. The size and morphology of gold NPs can be fine controlled by adjusting the sputtering current and time. The resulting graphene hybrids also enjoyed tunable area density and desirable thermal sta... | We report enhancement of the mechanical stability of graphene through a one-step method to disperse gold nanoparticles on the pristine graphene without any added agent. | Summary ::: ::: Morphological and molecular genetic analyses of the Aipenser gueldenstaedtii sensu Berg (1934) were accomplished using individuals collected in the southern part of the Caspian Sea. The distribution of specimens in the space of principal components were calculated using 28 morphometric characters. The r... | eng_Latn | 11,652 |
Crystallisation behaviour of poly (ethylene oxide) (PEO) and isotactic polypropylene (iPP) on graphene surface was investigated by means of polarized microscopy, wide angle X-ray diffraction (WAXD), and Raman techniques. Results indicated that graphene influences the crystallisation and crystal structure of iPP and PEO... | Nanocomposite strain sensors, particularly those consisting of polymer–graphene composites, are increasingly common and are of great interest in the area of wearable sensors. In such sensors, application of strain yields an increase in resistance due to the effect of deformation on interparticle junctions. Typically, w... | A nonlinear programming approach to the problem of learning in nonparametric and unsupervised environments is put forth in this study. The approach exploits the concept of optimal partitioning of the given data set as the objective of such nonparametric unsupervised learning. This partitioning or clustering is achieved... | eng_Latn | 11,653 |
The electrical conductance and principal structural and mechanical properties of gold nanowires, exhibiting reversibility in elongation-compression cycles at ambient conditions, were investigated using pin-plate experiments and molecular dynamics simulations. Underlying the reversible nature of the nanowires are their ... | The article examines the effect of atomic number, temperature and tempering time on microstructure and mechanical of Ni bulk by molecular dynamics simulation and deformation z-axis. Samples Ni with N = 4000, 5324, 6912, and 8788 atoms at 300 K, 6912 atoms at T = 1100, 900, 700, 500, 300 K and 6912 atoms at 900 K after ... | We report enhancement of the mechanical stability of graphene through a one-step method to disperse gold nanoparticles on the pristine graphene without any added agent. | eng_Latn | 11,654 |
Unlike conventional dry stamp-based printing methodologies, the suggested wet PDMS stamping technique allows for the generation of well-patterned graphene source/drain electrode structures. It is clarified that the electrical characteristics of soluble In–Ga–Zn–O (IGZO) TFTs can be improved effectively by adjusting the... | In this study, a novel method based on the transfer of graphene patterns from a rigid or flexible substrate onto a polymeric film surface via solvent casting was developed. The method involves the creation of predetermined graphene patterns on the substrate, casting a polymer solution, and directly transferring the gra... | The effect of water exposure on amorphous indium-gallium-zinc oxide (a-IGZO) semiconductors was reported. It was found that water can diffuse in and out of the a-IGZO film, reversibly affecting the transistor properties. Two competing mechanisms depending on the thickness of the active channel were clarified. The elect... | eng_Latn | 11,655 |
A challenge in organic thermoelectrics is to relate thermoelectric performance of devices to the chemical and electronic structures of organic components inside them on a molecular scale. To this end, a reliable and reproducible platform relevant to molecular-level thermoelectric measurements is essentially needed. Thi... | As a derivative material of graphene, graphene oxide films hold great promise in thermal management devices. Based on the theory of Fourier formula, we deduce the analytical formula of the thermal conductivity of graphene oxide films. The interlaminar thermal property of graphene oxide films is studied using molecular ... | 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 | 11,656 |
The temperature dependence of the saturation magnetization of a series of ionimplanted YIG films is presented. The films were implanted with neon ions at an energy of 450 keV; the dose ranged from 2 to 5*1014 ions/cm2. The experimental data can be described by the molecular field theory showing that the ion-implanted p... | We report that in an in-plane magnetised magnetic film the in-plane direction of a propagating spin wave can be changed by up to 90 degrees using an externally induced magnetic gradient field. We have achieved this result using a reconfigurable, laser-induced magnetisation gradient created in a conversion area, in whic... | We report enhancement of the mechanical stability of graphene through a one-step method to disperse gold nanoparticles on the pristine graphene without any added agent. | eng_Latn | 11,657 |
Plasmonic properties of metal nanomaterials critically affect on thermal treatments. One of such effects is ‘plasmonic-bleaching’ observed in ‘atom beam co-sputtering’ derived Ag:TiO 2 nanocomposite thin films, when annealed at 450 °C. The origin of bleaching is investigated using glancing angle X-ray diffraction and R... | A polarization-independent gas sensor based on crescent plasmonic dipole antenna loaded with graphene monolayer is introduced in this paper for environment monitoring applications. Single, dual, and four arms crescent dipoles are designed, analyzed and investigated. The proposed gas sensor has reconfigurable absorption... | 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 | 11,658 |
We examine the issue of stability of probability in reasoning about complex systems with uncertainty in structure. Normally, propositions are viewed as probability functions on an abstract random graph where it is implicitly assumed that the nodes of the graph have stable properties. But what if some of the nodes chang... | Some ideas around 3n+1 iterations.- Analysis of the Collatz graph.- 3-adic averages of counting functions.- An asymptotically homogeneous Markov chain.- Mixing and predecessor density. | We report enhancement of the mechanical stability of graphene through a one-step method to disperse gold nanoparticles on the pristine graphene without any added agent. | eng_Latn | 11,659 |
A review is given of the results of investigations of the channelling of high-energy charged particles in bent single crystals carried out in the last fifteen years. These investigations have given rise to new applications of crystals in the control of high-energy particle beams in modern accelerators: in beam lines, i... | Beam steering performance of bent silicon crystals irradiated with high-intensity and high-energy protons has been studied. In particular, crystals of the type used for collimation and extraction purposes in the Large Hadron Collider and the Super Proton Synchrotron at CERN have been irradiated at the HiRadMat CERN fac... | We report enhancement of the mechanical stability of graphene through a one-step method to disperse gold nanoparticles on the pristine graphene without any added agent. | eng_Latn | 11,660 |
Semi-discretization method is expanded to determine the stability charts of NFDE for milling processes including process damping. The method is based on a special kind of discretization technique with respect to the past effect only. The convergence of approximate method is investigated by the example of delayed Mathie... | A cooling package for an automobile passenger compartment including a housing which encloses an evaporator core and a motor driven fan having rotatable air outlets to permit alternate horizontal or vertical mounting of the package within the automobile. | We report enhancement of the mechanical stability of graphene through a one-step method to disperse gold nanoparticles on the pristine graphene without any added agent. | eng_Latn | 11,661 |
The scientist‐practitioner philosophy of clinical practice is first placed in its historical context. The history of the scientist‐practitioner stance is marked by an enduring struggle between advocates and opponents of a research-based profession of clinical psychology. The criticisms of the scientist‐practitioner sta... | Sixty-two members of staff from clinical psychology doctoral training programmes across Britain completed a survey about their level of research output, the extent to which they felt this met their own expectations and job requirements, and how it influenced promotion prospects. In addition, they listed perceived barri... | We report enhancement of the mechanical stability of graphene through a one-step method to disperse gold nanoparticles on the pristine graphene without any added agent. | eng_Latn | 11,662 |
Quantum dots (QDs) integrated 2-dimensional (2D) materials have great potential for photodetector applications due to the excellent light absorption of QDs and ultrafast carrier transportation of 2D materials. However, there is a main issue that prevents efficient carrier transportation and ideal performance of photode... | Hybrid lead chalcogenide (PbE) (E = S, Se) quantum dot (QD)-layered 2D systems are an emerging class of photodetectors with unique potential to expand the range of current technologies and easily integrate into current complementary metal-oxide-semiconductor (CMOS)-compatible architectures. Herein, we review recent adv... | 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 | 11,663 |
The arrangement of atoms in an atomically clean (011) iron surface, and the chemisorption of oxygen atoms, and subsequent formation of a discrete thin crystalline oxide film on this surface have been investigated by low-energy electron diffraction (LEED). ::: ::: These data indicated that an atomically clean (011) surf... | Two-dimensional (2D) materials have attracted interest because of their excellent properties and potential applications. A key step in realizing industrial applications is to synthesize wafer-scale single-crystal samples. Until now, single-crystal samples, such as graphene domains up to the centimeter scale, have been ... | 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 | 11,664 |
We investigate electrical conduction and breakdown behavior of 3D nano-carbon-stacked multilayer graphene (s-MLG) system with complete interlayer decoupling. The s-MLG is prepared by transferring and stacking large-area CVD-grown graphene monolayers, followed by wire patterning and plasma etching. Raman spectroscopy wa... | The diffusion processes and kinetic barriers of individual carbon adatoms and clusters on graphene surfaces are investigated to provide fundamental understanding of the physics governing epitaxial growth of multilayer graphene. It is found that individual carbon adatoms form bonds with the underlying graphene whereas t... | Adenomyoepithelioma is thought to be a low-grade malignancy, and cases showing malignant behavior are rare. | eng_Latn | 11,665 |
CONTENTS 1. Introduction 455 2. Formation of Statistical System in the Process of Fast-hadron Collision 460 3. Fundamental Formulas of the Statistical Theory of Multiple Generation 464 4. Characteristics of the Multiple Generation Process (Comparison with Experiment) 465 5. Statistical Large-angle Scattering 474 6. Fun... | I describe studies done by the theory group of Lebedev Physical Institute in Moscow and point out the cross-influence of some of our work with that of Rolf Hagedorn, and show how this research continued and evolved up to the present. | We report enhancement of the mechanical stability of graphene through a one-step method to disperse gold nanoparticles on the pristine graphene without any added agent. | eng_Latn | 11,666 |
In this article, we attempted a study on field effect transport characteristics of graphene flakes. These graphene flakes were exfoliated by mechanical peeling-off technique and the electrical contacts were patterned by photo-lithographic method. Graphene devices have shown better transfer characteristics which was obt... | We study the impact of hot-carrier degradation (HCD) on the performance of graphene field-effect transistors (GFETs) for different polarities of HC and bias stress. Our results show that the impact of HCD consists in a change of both charged defect density and carrier mobility. At the same time, the mobility degradatio... | The oxidative polymorphism of debrisoquine (DBQ) has been determined in 89 patients with colo-rectal cancer and in 556 normal control subjects. Four patients and 34 controls, with a metabolic ratio >12.6, were classified as poor metabolisers of DBQ (n.s.). | eng_Latn | 11,667 |
Waviness is invariably present in vertically-aligned Carbon Nanotubes (CNTs) regardless of how controlled the fabrication process is. This study, using experiments and models, shows that such inherent waviness is the main mechanism by which the effective modulus of CNTs is reduced by several orders of magnitude. At thi... | Stretchable and transparent electrodes have been developed for applications in flexible and wearable electronics. For customer-oriented practical applications, the electrical and optical properties of stretchable electrodes should be independent of the directions of the applied stress, and such electrodes are called om... | Floating catalyst chemical vapor deposition uniquely generates aligned carbon nanotube (CNT) textiles with individual CNT lengths magnitudes longer than competing processes, though hindered by impurities and intrinsic/extrinsic defects. We present a photonic-based post-process, particularly suited for these textiles, t... | eng_Latn | 11,668 |
In this work, we provide some novel analytic and finite element solutions to the Euler–Bernoulli equation for graphene beams. Comparisons of the solutions and error analysis are demonstrated. | We measured the elastic properties and intrinsic breaking strength of free-standing monolayer graphene membranes by nanoindentation in an atomic force microscope. The force-displacement behavior is interpreted within a framework of nonlinear elastic stress-strain response, and yields second- and third-order elastic sti... | Berzelius failed to make use of Faraday's electrochemical laws in his laborious determination of equivalent weights. | eng_Latn | 11,669 |
The mechanisms leading to initiation of electrical breakdown in geometrically identical argon-filled tubes at different pressures were investigated by the memory curves. It was shown that the positive ions and metastable states, remaining from the previous discharge, have the dominant role in the initiation of breakdow... | The connection between nonhomogeneities of the electric field and the value of the breakdown voltage [direct current (dc), pulls] in gases (N/sub 2/, SF/sub 6/) under low pressure and small inter-electrode gap was investigated in this paper. The obtained results show that the values of the breakdown voltages for nonhom... | We report enhancement of the mechanical stability of graphene through a one-step method to disperse gold nanoparticles on the pristine graphene without any added agent. | eng_Latn | 11,670 |
We have studied the influence of SiO2 and TiO2 dielectric layers on the atomic intermixing of InxGa1−xAs/InP quantum well structures using the impurity-free vacancy disordering technique. Photoluminescence results revealed that an enhancement of interdiffusion was obtained when the samples were capped with SiO2. Althou... | We increased the Al content in the single quantum well InGaP/InAlGaP laser by strain-induced quantum well intermixing, and obtained a considerable enhancement (close to ten-fold increase) in the photoluminescence (PL) intensity. Among the annealing process investigated, we achieved lasing at 638 nm in conjunction with ... | Composites consisting of graphene nanosheets (GNSs) decorated with amorphous TiO 2 thin films were synthesized by an atomic layer deposition (ALD) technique. It was revealed that the TiO 2 thin films were uniformly deposited onto the worm-like GNSs. When used as anode materials in lithium ion batteries (LIBs), the TiO ... | eng_Latn | 11,671 |
A theoretical study based on first-principles calculations about the interaction and diffusion of Ni atoms on pristine graphene and graphene with a single vacancy is presented. In the first case, we explored the structural changes due to the adsorption of Ni on graphene and the effects on the electronic structure. In t... | The problem of finding minimum energy paths and, in particular, saddle points on high dimensional potential energy surfaces is discussed. Several different methods are reviewed and their efficiency compared on a test problem involving conformational transitions in an island of adatoms on a crystal surface. The focus is... | The self-healing mechanism of radiation-induced defects in nickel–graphene nanocomposite is investigated by atomistic simulations. Compared with pure nickel, nickel–graphene nanocomposite has less defects remained in the bulk region after collision cascades, illustrating self-healing performance. Nickel–graphene interf... | eng_Latn | 11,672 |
In this paper, functionalized single walled carbon nanotubes (FSWCNTs) were suspended in Ethylene Glycol (EG) at different volume fractions. A KD2 pro thermal conductivity meter was used to measure the thermal conductivity in the temperature range from 30 to 50 °C. Nanofluids were prepared in solid volume fraction of 0... | Nanofluids have attracted the attention of researchers in recent years considerably. Due to the increasing number of articles on nanofluids, they need to be reviewed. Thermal conductivity is one of the most important properties of nanofluids. There are many methods for preparing nanoparticles and nanofluids that are us... | 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 | 11,673 |
Edge-dependent electronic properties of graphene nanoribbons (GNRs) have attracted intense interests. To fully understand the electronic properties of GNRs, the combination of precise structural characterization and electronic property measurement is essential. For this purpose, two experimental techniques using free-s... | We report the etching of and electronic transport in nanoribbons of graphene sandwiched between atomically flat hexagonal boron nitride (h-BN). The etching of ribbons of varying width was achieved with a focused beam of 30 keV He+ ions. Using in-situ electrical measurements, we established a critical dose of 7000 ions ... | 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 | 11,674 |
In this paper, the H ∞ state estimation problem for networked systems with Markov interval delay characteristic is investigated. A Markov chain is introduced to describe the delayed networked systems, considering the difficulty of obtaining the ideal knowledge of all transition probabilities, and a Markovian jump syste... | This paper focuses on stability and stabilization for a class of continuous-time Markovian jump systems with partial information on transition probability. The free-connection weighting matrix method is proposed to obtain a less conservative stability criterion of Markovian jump systems with partly unknown transition p... | We report enhancement of the mechanical stability of graphene through a one-step method to disperse gold nanoparticles on the pristine graphene without any added agent. | eng_Latn | 11,675 |
We report the structural and optical properties of Au nanoparticles embedded in a silica matrix synthesized by atom beam co-sputtering. The presence of surface plasmon resonant absorption indicates the formation of Au nanoparticles. Transmission electron microscopy (TEM) studies show the presence of Au nanoparticles wi... | Chemotherapy, the most commonly used therapeutic method for cancer, has the inherent constraint of low bioavailability. A number of physical cancer therapeutic treatments like radiation, ultrasound, photo-acoustic/photo thermal, microwave therapies are based on locating the afflicted sites with the help of imaging, but... | We report enhancement of the mechanical stability of graphene through a one-step method to disperse gold nanoparticles on the pristine graphene without any added agent. | eng_Latn | 11,676 |
In this work, we present a recursive Green’s function method to calculate electronic transport of armchair graphene nanoribbon (AGNR) and zigzag graphene nanoribbons (ZGNRs) quantum wires with randomly adsorption of monatomic gas molecules, which attached to two semi-infinite metallic leads. This model reduces numerica... | 539 ABSTRACT: Disordered T-shaped graphene nanodevice (TGN) was designed and studied in this paper. We demonstrated the intrinsic transport properties of the TGN by using Landauer approach. Knowing the transmission probability of an electron the current through the system is obtained using Landauer-Buttiker formalism. ... | 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 | 11,677 |
Microstructural evolutions during annealing of a plastically deformed AISI 304 stainless steel were investigated. Three distinct stages were identified for the reversion of strain-induced martensite to austenite, which were followed by the recrystallization of the retained austenite phase and overall grain growth. It w... | Diffraction Geometry and the X-Ray Powder Diffractometer.- The TEM and Its Optics.- Scattering.- Inelastic Electron Scattering and Spectroscopy.- Diffraction from Crystals.- Electron Diffraction and Crystallography.- Diffraction Contrast in TEM Images.- Diffraction Lineshapes.- Patterson Functions and Diffuse Scatterin... | We report enhancement of the mechanical stability of graphene through a one-step method to disperse gold nanoparticles on the pristine graphene without any added agent. | eng_Latn | 11,678 |
A theoretical study is presented of the effect of misfit strain on the transition from step flow to island nucleation dominated epitaxial layer growth on a vicinal surface. The analysis generalizes a set of reaction‐diffusion equations used for homoepitaxy to include the fact that heteroepitaxial strain changes the Arr... | Large-scale growth of single crystals on graphene can be useful for the development of 3D/2D or 2D/2D heterostructures. Here, through careful control of growth kinetics, the authors perform multiple cycles of direct growth/transfer of high-quality single-crystal GaN, using a single graphene/SiC substrate. | 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 | 11,679 |
The dependence of field emission properties of titanium dioxide (TiO2) nanotubes (NTs) has been studied as a function of NT diameter (D) and height (h), which varied in the ranges 18–500 nm and 500–12 000 nm, respectively. The studies showed a strong dependence of the field emission on these parameters. With an increas... | TiO2 nanowires with rutile structures on a SiO2/Si substrate were grown by thermal evaporation. A field-emission property of the low turn-on field was reduced to 3.5 and 2.6 V/μm under UVA in 10 min and UVC in 25 min. The wavelength of UVC was higher than the TiO2 band-gap, so the electrons more easily tunneled to the ... | We demonstrate the use of nanoimprint lithography as an alternative low-cost fabrication route for the production of ordered arrays of individual carbon nanotube field emitters. A high emission site density of 4×105cm−2 was observed and is well within the specification of the cathode for a field emission display. The m... | eng_Latn | 11,680 |
3D fluorescence microscopy of living organisms has increasingly become an essential and powerful tool in biomedical research and diagnosis. An exploding amount of imaging data has been collected, whereas efficient and effective computational tools to extract information from them are still lagging behind. This is large... | For the past 25 years NIH Image and ImageJ software have been pioneers as open tools for the analysis of scientific images. We discuss the origins, challenges and solutions of these two programs, and how their history can serve to advise and inform other software projects. | We report enhancement of the mechanical stability of graphene through a one-step method to disperse gold nanoparticles on the pristine graphene without any added agent. | eng_Latn | 11,681 |
Control of adsorbates and conduction on CVD-grown diamond surface, using scanning probe microscope | Nanofabrication on a hydrogen-terminated diamond surface is performed by controlling surface adsorbates, using a scanning probe microscope (SPM) technique. Insulated areas are successfully obtained by changing hydrogen termination to oxygen termination. The Auger electron spectrum (AES) indicated the presence of oxygen... | The XY model with quenched random disorder is studied numerically at T ¼ 0 by a defect scaling method as a model of a disordered superconductor. In 3D we find that, in the absence of screening, a vortex glass phase exists at low T for large disorder in 3D with stiffness exponent h �þ 0:31 and with finite screening and ... | eng_Latn | 11,682 |
Revealing two-competing processes in carrier dynamics of single-walled carbon nanotube films | Abstract Ultrafast time-resolved optical transmission in single-walled carbon nanotubes was measured as a function of pump fluence at a temperature of 200 K employing degenerate pump–probe experiment. We observed a relaxation dynamics with two components characterized by 0.1 and 1 ps, respectively. The signal amplitude... | Based on geologic features of the West Roadway of Guhanshan Coal Mine, late-model double-deck double-bend space net-crust bracket, which is composed of three-case-bar and three-arch, is designed. After spraying, the loading-carrying structure is formed, and the structure has good plasticity, that is, it can bear great ... | eng_Latn | 11,683 |
The Thermoelectric Properties of PbTe Doped with Na and PbI2 Elements | In this study, the PbTe samples doped with PbI2 or Na were prepared using powder metallurgical techniques. The preparation procedures were optimized by the experimental results with respect to powder particle size, compaction pressure, and influence of sintering parameters. The power factor profiles of the PbTe samples... | Abstract In recent years, various doping methods for epitaxial graphene have been demonstrated through atom substitution and adsorption. Here we observe by angle-resolved photoemission spectroscopy (ARPES) a coupling-induced Dirac cone renormalization when depositing small amounts of Ti onto epitaxial graphene on SiC. ... | eng_Latn | 11,684 |
Revealing attractive electron-electron interaction in a quantum dot by full counting statistics | Recent experiments [Nature 521, 196 (2015) and Nat. Commun. 8, 395 (2017)] have presented evidence for electron pairing in a quantum dot beyond the su- perconducting regime. Here, we show that the impact of an attractive electron-electron interaction on the full counting statistics of electron transfer through a quantu... | Abstract In recent years, various doping methods for epitaxial graphene have been demonstrated through atom substitution and adsorption. Here we observe by angle-resolved photoemission spectroscopy (ARPES) a coupling-induced Dirac cone renormalization when depositing small amounts of Ti onto epitaxial graphene on SiC. ... | eng_Latn | 11,685 |
Interaction of the Important Species HNO and HFSO2 in the Atmosphere: Theoretical Study of the NOH and SOH Blue-Shifted Hydrogen Bonds | Ab initio molecular orbital and density functional theory (dft) in conjunction with different basis sets calculations were performed to study the n-h center dot center dot center dot o and s-h center dot center dot center dot o blue-shifted h-bonds in the hno center dot center dot center dot hfso2 complex. the geometri... | The treatment of graphene oxide (GO) with potassium thioacetate followed by an aqueous work-up yields a new material via the ring-opening of the epoxide groups. The new material is a thiol-functionalized GO (GO-SH) which is able to undergo further functionalization. Reaction with butyl bromide gives another new materia... | eng_Latn | 11,686 |
A novel and simple coplanar waveguide-fed planar monopole antenna for ultra-wideband applications | In this paper, a novel and simple CPW-fed planar monopole antenna is presented for UWB application. The antenna is fabricated on inexpensive FR4 substrate and fed by 50? CPW on the same layer. Measured data show that the antenna provides an impedance bandwidth of about 8GHz for the return loss less than 10dB. It is als... | Abstract We propose a new model which simulates the motion of free electrons in graphene by the evolution of strings on manifolds. In this model, molecules which constitute sheets of graphene are polygonal point-like structures which build ( N + 1 ) -dimensional manifolds. By breaking the gravitational-analogue symmetr... | eng_Latn | 11,687 |
Increased attractive forces between electrodes in an electric discharge | It has been shown that attractive forces exists in an electric discharge that are caused by the discharge itself. The increased attraction between the electrodes of the discharge is ascribed to the charges on the electrodes, and charges of opposite polarity electrons and ions which continuously approach the electrodes.... | The magnetic effects in ferromagnetic graphene basically depend on the principle of exchange interaction when ferromagntism is induced by depositing an insulator layer on graphene. Here we deal with the consequences of non-uniformity in the exchange coupling strength of the ferromagnetic graphene. We discuss how the in... | eng_Latn | 11,688 |
Multiband low profile Modified Inverted-FL strip antenna for 5.2/5.8 GHz WLAN and 5.5 GHz WiMAX applications in laptop computer | This paper contains a multiband low profile Modified Inverted-FL (IFL) strip antenna for 5.2/5.8 GHz WLAN and 5.5 GHz WiMAX operations in a laptop computer. The simulation results are analyzed by means of Numerical Electromagnetic Code-2 (4NEC2) software. This antenna covers −10 dB return loss bandwidth of 900 MHz (515... | We demonstrate snake-like motion of graphene nanoribbons atop graphene and hexagonal boron nitride (h-BN) substrates using fully atomistic nonequilibrium molecular dynamics simulations. The sliding dynamics of the edge-pulled nanoribbons is found to be determined by the interplay between in-plane ribbon elasticity and ... | eng_Latn | 11,689 |
Edge-reflection phase directed plasmonic resonances on graphene nano-structures. | The phase of graphene plasmon upon edge-reflection plays a crucial role on determining the spectral properties of graphene structures. In this article, by using the full-wave simulation, we demonstrate that the mid-infrared graphene plasmons are nearly totally reflected at the boundary together with a phase jump of app... | Abstract We have studied GaAs1−xBix (up to x∼3%) using Raman scattering with two different polarization configurations. Two Bi-induced phonon modes are observed at ∼186 cm−1 and ∼214 cm−1 with increasing Raman intensity as the Bi concentration increases. By comparing Raman selection rules for the observed Bi-induced ph... | eng_Latn | 11,690 |
Excellent dielectric properties of Polyvinylidene fluoride composites based on sandwich structured MnO2/graphene nanosheets/MnO2 | Abstract MnO 2 /graphene nanosheets/MnO 2 (MGM) is fabricated by a facile and effective ethanol-assisted graphene-sacrifice reduction method. The morphology and structure of the MGM are examined by scanning electron microscopy, transmission electron microscopy, X-ray diffraction and X-ray photoelectron spectroscopy. Th... | The diffuse mismatch model (DMM) is one of the most widely implemented models for predicting thermal boundary conductance at interfaces where phonons dominate interfacial thermal transport. In the original presentation of the DMM, the materials comprising the interface were described as Debye solids. Such a treatment, ... | eng_Latn | 11,691 |
Electrochemical Mechanism for Fullerene Formation in Plasma Arcs | During the synthesis of fullerenes by dc plasma arcs, it has been found that the anodic graphite rod consistently burns up, while the cathodic graphite rod grows slag at its end. Further investigations revealed that the anodic and cathodic graphite rods p | Abstract Thanks to their high hydrogen permeability, vanadium based alloys can be a valuable and sustainable alternative to palladium alloys, commonly employed in commercial membranes for hydrogen purification/separation. In this work, the unprecedented deposition of micrometric vanadium-based multilayers and their inv... | eng_Latn | 11,692 |
Origin of metazoan adhesion molecules and adhesion receptors as deduced from cDNA analyses in the marine sponge Geodia cydonium: a review | The phylogenetic relationships of the kingdom Animalia (Metazoa) have long been questioned. Whether the lowest eukaryotic multicellular organisms, the metazoan phylum Porifera (sponges), independently evolved multicellularity from a separate protist lineage (polyphyly of animals) or whether they were derived from the s... | The results of the theoretical investigation of the curvature influence of the strained graphene nanoribbon on its sensory ::: properties are presented in the given work. The attachment mechanisms of hydrogen atoms to the plane and the wavelike ::: graphene nanoribbon are studied by the tight-binding method. For the fi... | eng_Latn | 11,693 |
Electron Screening in 7Be + p --> 8B + photon reaction | We evaluate the effect of screening by bound electron in (7Be,e) + p --> (8B,e) + photon transition in the framework of the adiabatic representation of the three particle problem. Comparison with two approaches (united nucleus and static) is presented. We discuss possible applications of this effect both for Solar Neut... | Abstract The possibilities of diamond-like carbon film applications for protection and stabilization of selenium-containing photoreceptors in electrophotography have been studied experimentally. We have determined the optimal conditions for deposition of diamond-like a-C:H films as well as their thickness at which the ... | eng_Latn | 11,694 |
Patterning monolayer graphene with zigzag edges on hexagonal boron nitride by anisotropic etching | Graphene nanostructures are potential building blocks for nanoelectronic and spintronic devices. However, the production of monolayer graphene nanostructures with well-defined zigzag edges remains a challenge. In this paper, we report the patterning of monolayer graphene nanostructures with zigzag edges on hexagonal bo... | Genetic simulated annealing algorithm coupled with niche is applied to search rock slope's critical slip surface in this study.Based on the slope structural plane simulation,the genetic simulated annealing algorithm coupled with niche can search the critical slip composed of the joints and rock-bridges.Compared with ot... | eng_Latn | 11,695 |
Single electron tunneling as a possible conduction mechanism in diamond like carbon film | Nonlinear current voltage characteristics and in some cases also step like characteristics were observed in diamond like carbon films. We suggest that the transport mechanism is tunneling between conducting nanoparticles in the films and the observation of step like structures is a manifestation of Coulomb blockade fou... | We examine the influence of Ni impurity in cuprates on the distribution of hole carriers by performing numerically exact diagonalization calculations for a model consisting of $\text{Cu}\text{ }3d$, $\text{Ni}\text{ }3d$, and $\text{O}\text{ }2p$ orbitals. Using realistic parameters for the system, we find that a hole ... | eng_Latn | 11,696 |
Structural ordering of diamond like carbon films by applied electric field | Diamond like carbon films deposited by RF magnetron sputter deposition technique contain both SP2 and SP3 hybridized carbons. These films are structurally disordered and inhomogeneous. By the application of electric field across the film, these films are transformed to a more orderly structured diamond like carbon, bri... | A recently presented dynamic model concerning the electronically induced crystallographic transition is solved rigorously with higher-order terms in the distortion operator also taken into account. | eng_Latn | 11,697 |
Dual Counterion Systems of Carboxylated Nanocellulose Films with Tunable Mechanical, Hydrophilic, and Gas-Barrier Properties | Aqueous dispersions of C6-carboxylated cellulose nanofibrils with sodium counterions (CNF-COONa) and CNFs with tetraethylammonium counterions (CNF-COONEt4) were mixed at various weight ratios. Transparent, flexible CNF-COONa/NEt4 films were prepared by casting and drying aqueous mixtures with various Na/NEt4 molar rati... | Abstract This research is focused on the effects of nonlinear terms on the dynamical behavior of graphene reinforced laminated composite plates. Firstly, the governing equations of the graphene reinforced composite thin plate subjected to transverse excitations are derived by using the Hamilton's principle and the von ... | eng_Latn | 11,698 |
Interpretation of dynamical diffuse scattering of fast electrons in rutile | An Einstein model for thermal diffuse scattering is extended to a fully dynamical n-beam Bloch-wave treatment, where explicit account is taken of the scattering site symmetry from individual atoms. Dynamical effects in this model are related to orientation-dependent fluctuations in current density on localized scatteri... | We present the design for the chalcogenide nanofiber coated with a thin finite tellurite cladding. The effects of the thickness of the tellurite coating on the dispersion and the nonlinearity of the nanofiber are studied. | eng_Latn | 11,699 |
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