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Geant4 and beyond: recent progress in precision physics modeling

Matej Batič、M. Begalli、Min Cheol Han 等 12 位作者2014-07-22arXiv (Cornell University)

This extended abstract briefly summarizes ongoing research activity on the evaluation and experimental validation of physics methods for photon and electron transport. The analysis includes physics models currently implemented in Geant4 as well as modeling methods used in other Monte Carlo codes, or not yet considered…

Nuclear reactor physics and engineeringNuclear Physics and ApplicationsElectron and X-Ray Spectroscopy Techniques

Advanced Polymer Composite for Radioactive Waste Containment

Mohammad Shadab、Rania Khalaf、Faisal Al-Samaraie 等 4 位作者2014-07-22DSpace at AUS (American University of Sharjah)

In 2009, the Emirates Nuclear Energy Corporation (ENEC) was launched as a step into providing clean, safe and efficient nuclear energy in the UAE. As oil reserves decline, ENEC aims to satisfy about 25% of the energy demand of the UAE by 2020. For this purpose, initial drilling for the set-up of four nuclear reactors…

Graphite, nuclear technology, radiation studiesNuclear and radioactivity studies

Energy spectrum of underdoped cuprates in pseudogap phase

L. P. Gor’kov、G. B. Teǐtel'Baum2014-07-22arXiv (Cornell University)

In the search for mechanisms of high-temperature superconductivity it is critical to know the electronic spectrum in the pseudogap phase from which superconductivity evolves. The lack of angle-resolved photoemission data for every cuprate family precludes an agreement as to its structure, doping and temperature depend…

Physics of Superconductivity and MagnetismMagnetic and transport properties of perovskites and related materialsAdvanced Condensed Matter Physics

SELF REINFORCED POLYAMIDE 12/CARBON FIBRE HYBRID COMPOSITES

P.J. Hine、Mark Bonner、I. M. Ward 等 5 位作者2014-07-22Lirias

This paper describes the manufacture and properties of self reinforced polymer hybrid composites based on a combination of carbon fibres and oriented polyamide 12 fibres and tapes. Three different hybridisation techniques (intra-yarn, intra-layer and inter-layer) were investigated. In intra-yarn hybridisation, tows we…

Mechanical Behavior of CompositesNatural Fiber Reinforced CompositesFiber-reinforced polymer composites

Theoretical elucidation of possibility of Majorana modes in a two dimensional Dirac system

Partha Goswami2014-07-22arXiv (Cornell University)

Here we present the theoretical clarification of possibility of eight Majorana-like modes (quasi-particles which are self-conjugate) close to the experimentally inaccessible Dirac points of a two-dimensional monolayer Dirac system. The valley-mixing and the spin-degeneracy lifting are the main requirements. These are…

Graphene research and applicationsTopological Materials and PhenomenaQuantum Mechanics and Non-Hermitian Physics

Подавление высокочастотного шума выхлопной системы легкового автомобиля

Г. М. Макарьянц、К. А. Крючков、Artur Safin 等 6 位作者2014-07-22Journal of Dynamics and Vibroacoustics

The paper presents the decision for the question of the excessive catalytic collector high frequency noise in the automobile engine exhaust system. The high level noise has been observed under the idle state engine condition. In order to understand the causes of the high catalytic collector noise emission the research…

Vehicle Noise and Vibration ControlMaterial Properties and ApplicationsTechnical Engine Diagnostics and Monitoring

Innentitelbild: Bindungseigenschaften lokaler Strukturmotive in amorphem GeTe (Angew. Chem. 40/2014)

Volker L. Deringer、Wei Zhang、Marck Lumeij 等 7 位作者2014-07-22Angewandte Chemie

Einen Ausflug ins Amorphe unternehmen R. Mazzarello, R. Dronskowski et al.: In ihrer Zuschrift auf S. 10993 ff. berichten sie über die Bindungsverhältnisse in amorphem GeTe, einem prototypischen Phasenwechselmaterial zur Datenspeicherung. Ausgehend von einem Moleküldynamik-Schnappschuss analysieren sie die Rolle versc…

Crystal Structures and PropertiesPhase-change materials and chalcogenidesOrganoselenium and organotellurium chemistry

Adsorption of rare-earth atoms onl silicon carbide nanotube: a density-functional study

Zhiwei An、Jiang Shen2014-07-22Modern Physics Letters B

In this paper, we investigate the adsorption of a series of rare-earth (RE) metal atoms ( La , Pr , Nd , Sm and Eu ) on the pristine zigzag (8, 0) silicon carbide nanotube ( SiCNT ) using density functional theory (DFT). Main focuses are placed on the stable adsorption sites, the corresponding binding energies, and th…

Carbon Nanotubes in CompositesGraphene research and applicationsBoron and Carbon Nanomaterials Research

Synthetic control over the dynamics of mesoscaled cargo release from colloidal polymer vectors inside live cells

Harvind S. Chahal、Dev S. Chahal、Patrick M. McBride 等 4 位作者2014-07-22Journal of Polymer Science Part A Polymer Chemistry

ABSTRACT Directed delivery of mesoscaled cargo—for example, nanocrystals, proteins, or nucleic acids—to cells using polymer vectors impacts numerous biomedical fields. We introduce here the concept of dynamic complementarity as a simple, yet powerful approach to control the rate of mesoscaled cargo dissociation from c…

Nanoparticle-Based Drug DeliveryRNA Interference and Gene DeliveryPolymer Surface Interaction Studies

离子改性Y分子筛吸附分离1,1,1,2-四氟乙烷/1,1-二氟-2-氯乙烯

张闯、Bo Zhang、尉明全2014-07-22Acta Scientiarum Naturalium Universitatis Sunyatseni

用CaCl 2 、La(NO 3 ) 3 和Ce(NO 3 ) 3 溶液对NaY分子筛进行离子改性制备出CaY、LaY和CeY分子筛。将其及NaY为吸附剂,利用动态吸附法评价其吸附分离1,1,1,2-四氟乙烷(HFC-134a)产品中微量1,1-二氟-2-氯乙烯(HCFC-1122)的性能。同时采用X射线衍射(XRD)、吡啶红外(FTIR)和氨-程序升温脱附(NH 3 -TPD)等手段对新鲜及再生后的吸附剂进行结构和表面性质表征。结果表明:CaY、LaY与CeY分子筛上的Bronsted酸中心可与HCFC-1122形成p-吸附配合物,从而将吸附流出气中HCFC-1122的残余率降低至1.0%以下;Bronsted酸强度越高,p-吸…

Catalytic Processes in Materials Science

Morphological evolution of ternary InxGa1-xAs nanowires (NWs) grown with Au particle-assisted using vertical chamber MOCVD

Edy Wibowo、Zulkafli Othaman、Samsudi Sakrani 等 7 位作者2014-07-22Malaysian Journal of Fundamental and Applied Sciences

The morphology and chemical composition of InxGa1-xAs NWs grown on undoped GaAs (111)B substrate have been investigated using scanning electron microscopy (SEM) and energy dispersive x-ray (EDX), respectively. SEM images show that InxGa1-xAs NWs underwent morphological evolution as temperature changes. By changing the…

Quantum Dots Synthesis And PropertiesAdvancements in Semiconductor Devices and Circuit DesignNanowire Synthesis and Applications

In Vitro Bacterial Screening and Degradation Kinetics of a Terpolymer Ligand and Its Transition Metal Complexes

Mohamed A. Riswan Ahamed、Raja S. Azarudeen、N. Prabu 等 4 位作者2014-07-22Advances in Polymer Technology

ABSTRACT A novel terpolymer ligand involving 2‐amino‐6‐nitro‐benzothiazole–semicarbazide–formaldehyde was synthesized in a 1:1:2 mole ratio with a dimethylformamide reaction medium at 150 ± 2°C for 6 h. The synthesized ligand was used to prepare various metal complexes with Cu2+, Ni2+, and Zn2+ metal ions. The structu…

Chemical Synthesis and CharacterizationX-ray Diffraction in CrystallographyPolymer Synthesis and Characterization

Evidence of Josephson junction behavior in top-gated LaAlO$_3$-SrTiO$_3$

V. V. Bal、Manan Mehta、Sangwoo Ryu 等 7 位作者2014-07-22arXiv (Cornell University)

We demonstrate top-gate tunable Josephson junction like behavior in the two dimensional electron gas at the LaAlO$_3$-SrTiO$_3$ interface. A combination of global back-gating and local top-gating is used to define the junctions, providing an efficient way for much finer spatial control over the properties of the inter…

Semiconductor materials and devicesMagnetic and transport properties of perovskites and related materialsElectronic and Structural Properties of Oxides

Crystal growth and structural investigation of a new metal–organic crystal:β-alanine cadmium bromide monohydrate (β-ACBM)

R. Renugadevi、R. Kesavasamy2014-07-22Phase Transitions

A new metal–organic crystal, β-alanine cadmium bromide monohydrate (β-ACBM) has been grown from aqueous solution by slow evaporation technique. The grown crystals have been subjected to single crystal X-ray diffraction to determine the crystal structure. The β-ACBM crystallized in monoclinic system, which belongs to t…

Crystal structures of chemical compoundsCrystallography and molecular interactionsNonlinear Optical Materials Research

The Laplacian Eigenvalues and Invariants of Graphs

Rong-Ying Pan、Jing Yan、Xiao‐Dong Zhang2014-07-22arXiv (Cornell University)

In this paper, we investigate some relations between the invariants (including vertex and edge connectivity and forwarding indices) of a graph and its Laplacian eigenvalues. In addition, we present a sufficient condition for the existence of Hamiltonicity in a graph involving its Laplacian eigenvalues.

Graphene research and applicationsSynthesis and Properties of Aromatic CompoundsGraph theory and applications

Investigation of the corrosion resistance of welded joints in iron–nickel alloys

Z. A. Sidlin2014-07-22Welding International

Results of investigations into the effect of chromium, which determines corrosion resistance, and its content in specimens of deposited metal on EK77 alloy varies in the range 21.1–20.8%, are presented. The optimum ratio of the alloying elements chromium, copper, manganese and silicon is determined. Data for the corro…

Welding Techniques and Residual StressesMaterial Properties and ApplicationsEngineering and Environmental Studies

Innenrücktitelbild: Selective Targeting of Tumor and Stromal Cells By a Nanocarrier System Displaying Lipidated Cathepsin B Inhibitor (Angew. Chem. 38/2014)

Georgy Mikhaylov、D. Klimpel、Norbert Schaschke 等 9 位作者2014-07-22Angewandte Chemie

Ein neues Wirkstofftransportsystem mit Krebs-assoziiertem extrazellulärem Cathepsin-B als Zielstruktur wird von B. Turk, O. Vasiljeva et al. in ihrer Zuschrift auf S. 10241 ff. vorgestellt. Das entwickelte System basiert auf einem lipidierten, Cathepsin-B-spezifischen, in die Hülle der liposomalen Nanoträger eingebaut…

Nanoparticle-Based Drug DeliveryProtease and Inhibitor Mechanisms

Inside Cover: Bonding Nature of Local Structural Motifs in Amorphous GeTe (Angew. Chem. Int. Ed. 40/2014)

Volker L. Deringer、Wei Zhang、Marck Lumeij 等 7 位作者2014-07-22Angewandte Chemie International Edition

A glimpse into amorphous materials. In their Communication on page 10817 ff. R. Mazzarello, R. Dronskowski et al. investigate the bonding nature of amorphous GeTe, a prototypical phase-change data-storage material. Starting from a molecular-dynamics snapshot, the role of different structural motifs is elucidated by th…

Phase-change materials and chalcogenidesSolid-state spectroscopy and crystallographyMolecular spectroscopy and chirality

Glass forming ability of Zr–Al–Ni(Co,Cu) understood via cluster sharing model

Jixiang Chen、Yi Cheng2014-07-22Progress in Natural Science Materials International

Clusters are shared atoms in different ways with their neighboring clusters in the crystalline phases. Cluster formula [effective cluster] 1 (glue atom) x can be used to describe crystalline phases, and the effective cluster means the true cluster composition due to cluster overlapping in the phase structure. Degree o…

Metallic Glasses and Amorphous AlloysPhase-change materials and chalcogenidesQuasicrystal Structures and Properties