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Interaction of static charges in graphene within Monte Carlo simulation

V. V. Braguta、S. N. Valgushev、А. А. Николаев 等 5 位作者2014-05-02Physical Review B

The study of the interaction potential between static charges within Monte Carlo simulation of graphene is carried out. The numerical simulations are performed in the effective lattice field theory with noncompact ($3+1$)-dimensional Abelian lattice gauge fields and ($2+1$)-dimensional staggered lattice fermions. It i…

Graphene research and applicationsTheoretical and Computational PhysicsTopological Materials and Phenomena

Optimizing the fabrication of diffractive optical elements using a focused ion beam system

A. Vijayakumar、Ulrike Eigenthaler、Kahraman Keskinbora 等 8 位作者2014-05-02Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE

In the past, UV lithography has been used extensively for the fabrication of diffractive optical elements (DOEs). The advantage of this technique is that the entire structure can be written at one time, however, the minimum feature size is limited to about 1 μm. Many 1-d and 2-d periodic grating structures may not nee…

Orbital Angular Momentum in OpticsOptical Coatings and GratingsSurface Roughness and Optical Measurements

Photomask-based integration process of low-defect suspended carbon nanotubes into SOI MEMS

Shih‐Wei Lee、Matthias Muoth、Christofer Hierold2014-05-02Nanotechnology

A fully-developed photomask-based integration process is reported. The process can integrate suspended carbon nanotubes (CNTs) into micro-structures on silicon-on-insulator chips. The process features batch-compatible fabrication and post-growth metallization of suspended CNTs, which has never been demonstrated by any…

Carbon Nanotubes in CompositesNanowire Synthesis and ApplicationsMechanical and Optical Resonators

Towards X‐ray in‐situ visualization of ammonothermal crystal growth of nitrides

Saskia Schimmel、Ulrike Künecke、Hasan Baser 等 9 位作者2014-05-02Physica status solidi. C, Conferences and critical reviews/Physica status solidi. C, Current topics in solid state physics

Abstract In‐situ X‐ray visualization of hydrothermal growth of silicalite‐1 is applied as an intermediate step for developing X‐ray in‐situ visualization techniques for ammonothermal growth of nitride materials. In‐situ X‐ray imaging of silicalite‐1 crystals grown by the bulk material dissolution technique (Shimizu an…

Advanced ceramic materials synthesisMachine Learning in Materials ScienceInorganic Chemistry and Materials

ZnSe/ZnS quantum dots - photosensitizer complexes: optical properties and cancer cell photodynamic destruction effect

Irina V. Martynenko、Vera Kuznetsova、Anna Orlova 等 8 位作者2014-05-02Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE

In present study complexes between non-toxic ZnSe/ZnS quantum dots and chlorin e6 molecules that are widely used as photosensitizers in photodynamic therapy were formed. It was found that in aqueous solution cationic ZnSe/ZnS quantum dots and chlorin e6 formed stable complexes that exhibit efficient photoexcitation en…

Quantum Dots Synthesis And PropertiesNanoplatforms for cancer theranosticsPhotodynamic Therapy Research Studies

The strain-rate effects on the numerical simulation of steel beams under blast loads

S.K. Hashemi、Mark A. Bradford2014-05-02WIT transactions on the built environment

Currently, there is significant interest amongst computational mechanics researchers in the area of investigating structures under blast loads. The explosive effect can impart damage, ranging from minor to full structural failure. Recent advancements in computer technology have enabled the ability to implement softwar…

High-Velocity Impact and Material BehaviorStructural Response to Dynamic LoadsFire effects on concrete materials

Mechanisms Study of NH3Formation in the Reaction Between H2and Char Edge Models Containing 2-Pyridone

Jing Xin、Baomin Sun、Hengyi Zhu 等 6 位作者2014-05-02Combustion Science and Technology

Molecular modeling research based on transition state theory and density functional theory was performed to clarify the mechanisms for NH3 evolution during the reaction of H2 with char edge models containing 2-pyridone in zigzag and armchair configurations. The thermal chemical activation energy and enthalpy change we…

Advanced Chemical Physics StudiesCatalytic Processes in Materials ScienceAmmonia Synthesis and Nitrogen Reduction

From Molecular Magnets to Magnetic Nanomaterials – Deposition of Co7 Single‐Molecule Magnet; Theoretical Investigation of the Exchange Interactions

V. Tangoulis、Michalis Skarlis、Catherine P. Raptopoulou 等 5 位作者2014-05-02European Journal of Inorganic Chemistry

Abstract The synthesis, characterization, and magnetic behavior of a new Co7 disc [CoII4CoIII3(Htea)3(tea)3](NO3)2·2CH3OH·1.5H2O (1, H3tea = triethanolamine), which was isolated in high yield in the presence of only triethanolamine, is reported. Magnetic measurements confirmed that 1 belongs to the family of single‐mo…

Magnetism in coordination complexesPorphyrin and Phthalocyanine ChemistryMolecular Junctions and Nanostructures

A dual-targeting nanocarrier based on modified chitosan micelles for tumor imaging and therapy

Haiyan Chen、Yuqi Chen、Hai‐Bo Yang 等 8 位作者2014-05-02Polymer Chemistry

Conventional chemotherapy suffers from non-specificity, lack of aqueous solubility and multidrug resistance. Tumor-targeting nanotherapeutics exhibit unique advantages in the delivery of drugs specifically into tumors. Here, folic acid (FA), methionine (Met) and a near infrared (NIR) fluorescence probe (cypate, ICG de…

Nanoparticle-Based Drug DeliveryRNA Interference and Gene DeliveryNanoplatforms for cancer theranostics

Hydrodynamic ram analysis of aircraft fuel tanks with different composite T-joint designs

Sebastian Heimbs、T. Duwensee、André C. Nogueira 等 4 位作者2014-05-02WIT transactions on the built environment

Three different composite T-joint designs were investigated experimentally and numerically for application in fuel-filled wing tanks under hydrodynamic ram (HRAM) loads. The test campaigns covering 0 T-pull and 30 T-bending tests were conducted under quasi-static and high-rate dynamic conditions in order to assess pot…

Fluid Dynamics Simulations and InteractionsHigh-Velocity Impact and Material BehaviorStructural Response to Dynamic Loads

Theoretical studies of the local structures and electron paramagnetic resonance parameters for Cu2+center in Zn(C3H3O4)2(H2O)2single crystal

Huaming Zhang、Wenbo Xiao、Xiong Wan2014-05-02Radiation effects and defects in solids

The electron paramagnetic resonance (EPR) parameters (g factors gxx, gyy, gzz and hyperfine structure constants Axx, Ayy, Azz) are interpreted by taking account of the admixture of d-orbitals in the ground state wave function of the Cu2+ ion in a Zn(C3H3O4)2(H2O)2 (DABMZ) single crystal. Based on the calculation, loca…

Photochemistry and Electron Transfer StudiesSolid-state spectroscopy and crystallographyElectron Spin Resonance Studies

The reduction of peak overpressure using concrete blast barriers

Roman Hájek、Marek Foglar2014-05-02WIT transactions on the built environment

Due to the rise of terroristic attack threat, public buildings should be designed to ensure as much safety of its visitors as possible. This paper is focused mainly on understanding of blast wave dynamics in interaction with the solid building and its equipment. Especially pressure wave reflections inside a confined s…

Combustion and Detonation ProcessesHigh-Velocity Impact and Material BehaviorStructural Response to Dynamic Loads

Melt/solid-state polytransesterification supported by an inert gas flow – an alternative route for the synthesis of high molar mass poly( l -lactic acid)

Izabela Steinborn‐Rogulska、Paweł G. Parzuchowski、Gabriel Rokicki2014-05-02Polymer Chemistry

When the conventional method of melt polycondensation of lactic acid is carried out a product of low or medium molar mass (MM) unsuitable for commercial application may be obtained. In contrast, the ring opening polymerization of lactide (ROP), the commercially adopted method for the synthesis of poly(L-lactic acid) (…

biodegradable polymer synthesis and propertiesAdditive Manufacturing and 3D Printing TechnologiesCarbon dioxide utilization in catalysis

ZnO nanorod–templated well-aligned ZrO2 nanotube arrays for fibroblast adhesion and proliferation

Zhisong Lu、Zhihong Zhu、Jinping Liu 等 5 位作者2014-05-02Nanotechnology

Cellular responses to porous tubular structures have recently been investigated in highly ordered ZrO2 nanotube arrays fabricated with anodization. However, the potential applications of the nanotube arrays are hindered by instrument requirements and substrate limitations, as well as by the complicated processes neede…

Bone Tissue Engineering MaterialsMarine Biology and Environmental ChemistryAnodic Oxide Films and Nanostructures

Frontispiz: Particle Display: A Quantitative Screening Method for Generating High‐Affinity Aptamers

Jinpeng Wang、Qiang Gong、Nupur Maheshwari 等 7 位作者2014-05-02Angewandte Chemie

H. T. Soh et al. beschreiben in der Zuschrift auf S. 4896 ff. ein neues Partikeldisplay für das Aptamer-Screening, das leistungsfähige Aptamere schnell und kostengünstig zugänglich macht.

Advanced biosensing and bioanalysis techniquesAdvanced Electron Microscopy Techniques and ApplicationsNanocluster Synthesis and Applications

Structural, electrical and optical properties of CuGaTe2 absorber for thin‐film solar cells

A. Messous、A. Bouloufa、K. Djessas 等 4 位作者2014-05-02Physica status solidi. C, Conferences and critical reviews/Physica status solidi. C, Current topics in solid state physics

Abstract Near‐stoichiometry composition CuGaTe2 (CGT) thin films prepared by close‐spaced vapour transport (CSVT) with copper excess in the source has been investigated and was confirmed by energy dispersive spectroscopy. The influence of temperature substrate on structural properties of CGT was studied, with the opti…

Quantum Dots Synthesis And PropertiesChalcogenide Semiconductor Thin FilmsCopper-based nanomaterials and applications

Arrays of millimeter-sized glass lenses for miniature inspection systems

Josep Albero、Stéphane Perrin、Sylwester Bargiel 等 7 位作者2014-05-02Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE

In this paper, we adapt a technique employed for glass microlenses fabrication in order to obtain matrices of millimeter size lenses for inspection applications. The use of microfabrication processes and Micro-Electro-Mechanical Systems (MEMS) compatible materials allow the integration of lenses larger than usual in m…

Advanced optical system designAdvanced Measurement and Metrology TechniquesOptical Coatings and Gratings

Assessing the spatial correlation and conduction state of breakdown spot patterns in Pt/HfO2/Pt structures using transient infrared thermography

E. Miranda、Michele Riccio、Gianluigi De Falco 等 6 位作者2014-05-02Journal of Applied Physics

The generation and conduction state of breakdown spot patterns in HfO2-based metal-insulator-metal structures are investigated using transient infrared thermography in combination with spatial statistics. The spots are created at a low generation rate by applying an appropriate constant voltage stress to the devices.…

Semiconductor materials and devicesAdvanced Memory and Neural ComputingMachine Learning in Materials Science

Pareto optimal mapping for tile-based network-on-chip under reliability constraints

Qianqi Le、Guowu Yang、William N. N. Hung 等 5 位作者2014-05-02International Journal of Computer Mathematics

Mapping for network-on-chip (NoC) is one of the key steps of NoC design. To improve the performance and reliability of NoC architectures, we present a comprehensive optimization algorithm with multiple objectives. We propose to find the Pareto optimal solutions, rather than a single solution usually obtained through s…

Graphene research and applicationsAdvanced Memory and Neural ComputingInterconnection Networks and Systems

Design of a novel horizontal impact machine for testing of concrete specimens

Petr Máca、Jan Zatloukal、Radoslav Sovják2014-05-02WIT transactions on the built environment

A novel design approach of an impact testing apparatus for concrete and highperformance cementitious composite specimens is described in this paper. To date, various approaches have been adopted when measuring the behaviour of concrete under impact loading. Most of the research teams used machines based on a guided dr…

Innovative concrete reinforcement materialsGeophysical Methods and ApplicationsHigh-Velocity Impact and Material Behavior