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Fabricability of Reaction-sintered SiC for Ceramic Heat Exchanger Operated in a Severe Environment

Choong-Hwan Jung、Jiyeon Park2011-01-31Journal of the Korean Ceramic Society

Silicon carbide (SiC) is a candidate material for heat exchangers for VHTR (Very High Temperature Gas Cooled Reactor) due to its refractory nature and high thermal conductivity.This research has focused on demonstration of physical properties and mock-up fabrication for the future heat exchange applications.It was fou…

Advanced ceramic materials synthesisAluminum Alloys Composites PropertiesAdditive Manufacturing and 3D Printing Technologies

Magnetocrystalline anisotropy and uniaxiality of MnAs/GaAs(100) films

J. Magnus Wikberg、Ronny Knut、Sumanta Bhandary 等 12 位作者2011-01-31Physical Review B

We present an investigation of the magnetic behavior of epitaxial MnAs films grown on GaAs(100). We address the dependence of the magnetic moment, ferromagnetic transition temperature (${T}_{c}$), and magnetocrystalline anisotropy constants on epitaxial conditions. From thorough structural and magnetic investigations,…

ZnO doping and propertiesMagnetic and transport properties of perovskites and related materialsMagnetic Properties of Alloys

Development of Nano-structured Zn-Ni Multilayers and their Corrosion Behaviors

S. Yogesha、Ramesh S. Bhat、K Venkatakrishna 等 6 位作者2011-01-31Synthesis and Reactivity in Inorganic Metal-Organic and Nano-Metal Chemistry

Composition modulated multilayer alloy (CMMA) coatings of Zn-Ni was developed using single bath technique (SBT). CMMA coatings were developed galvanostatically using square current pulses. The cyclic cathode current densities (CCCDs) and number of layers were optimized for highest corrosion resistance. Experimental re…

Metal and Thin Film MechanicsElectrodeposition and Electroless CoatingsCopper Interconnects and Reliability

Evaluation of breakdown characteristics of CO2 gas for non-standard lightning impulse waveforms - breakdown characteristics under single-frequency oscillation waveforms of 5.3 MHz to 20.0 MHz

Genyo Ueta、Junichi Wada、Shigemitsu Okabe2011-01-31IEEE Transactions on Dielectrics and Electrical Insulation

SF6gas, an insulation medium used for gas insulated switchgear (GIS), has a high global warming potential, hence the search for an effective alternative means from the environmental perspective. The authors are focusing on CO2gas, which has a lower global warming potential (GWP), as one of its potential alternatives.…

High voltage insulation and dielectric phenomenaLightning and Electromagnetic PhenomenaPower Transformer Diagnostics and Insulation

Crystal growth, spectroscopic characterization, and continuous wave laser operation of Nd3+-doped LiLuF4 crystal

Chao Zhao、Y. Hang、L.H. Zhang 等 8 位作者2011-01-31Laser Physics Letters

Nd 3+ -doped LiLuF 4 single crystal with high optical quality was grown by Czochralski technique. The segregation coefficient of Nd 3+ in LiLuF 4 crystal was determined by the inductively coupled plasma atomic emission spectrometry method. Polarized absorption and fluorescence spectra were investigated. The peak absor…

Luminescence Properties of Advanced MaterialsSpectroscopy and Laser ApplicationsSolid State Laser Technologies

Surface Characteristics and Bioactivity of Oxide Films with Haloid Ions Formed by Micro-Arc Oxidation on Titanium in Vitro

Jianxue Li、Guofeng Wu、Jiang Jiang 等 4 位作者2011-01-31Materials and Manufacturing Processes

Ti-based implant materials have specific complications associated with their applications because of their unsatisfactory bioactivity. Hence, a surface which displays selective biointeractivity, i.e., enhancing the bioactivity of material but inhibiting pathogenic microbial adhesion, would be highly desirable. The aim…

Bone Tissue Engineering MaterialsDental Implant Techniques and OutcomesTitanium Alloys Microstructure and Properties

Molecular Dynamics Simulations of a Binding Intermediate between FKBP12 and a High-Affinity Ligand

Lilian Olivieri、Fabrice Gardebien2011-01-31Journal of Chemical Theory and Computation

We characterized a binding intermediate between the protein FKBP12 and one of its high-affinity ligands by means of molecular dynamics simulations. In such an intermediate, which is expected to form at the end-point of the bimolecular diffusional search, short-range interactions between the molecular partners may play…

Protein Structure and DynamicsEnzyme Structure and FunctionSignaling Pathways in Disease

Direct observation of the spin configurations of vertical Bloch line

JinBae Kim、Hiroyuki Akinaga、Jongryoul Kim2011-01-31Applied Physics Letters

We observed the spin configurations of Bloch lines in a ferromagnetic MnAs film on GaAs(001) by conventional magnetic force microscopy (MFM) and tilt-scanning (TS)-MFM. Due to the high lateral resolution of conventional MFM measurements, we were able to demonstrate the out-of-plane magnetic components within the Bloch…

Physics of Superconductivity and MagnetismMagnetic properties of thin filmsMagnetic and transport properties of perovskites and related materials

Study on Reutilization with Aerobic Microbes of Organic Food Waste Leachates

Bo-Mi Kang、Hyeon-Uk Hwang、Jihoon Kim 等 5 位作者2011-01-31대한환경공학회지

This test established the bioavailability and sample input by mixing the maintaining the microbial machine parts and food waste leachates in weight of 2:1 as advanced experiment, maintaining the constant temperature, agitating and observing its weight and property change for 60 hours. And, I injected daily the establi…

Composting and Vermicomposting TechniquesAgriculture, Soil, Plant ScienceMetallurgy and Material Science

Catalytic Reduction of Nitroarenes with Polymeric Palladium Nanoparticles

Rupesh Kumar、Veena Yadav、Shweta Gupta 等 5 位作者2011-01-31Synthesis and Reactivity in Inorganic Metal-Organic and Nano-Metal Chemistry

An efficient synthesis of Pd nanoparticles in water has been developed using PEG10k as the capping agent. The PEG10k-Pd NPs (2 mol%) efficiently catalyzes reduction of nitro compounds performed in air. The stability of the catalyst allows an extensive recycle in the reduction of nitro compounds.

Catalytic Processes in Materials ScienceInnovative Microfluidic and Catalytic Techniques InnovationNanomaterials for catalytic reactions

Haemocyte-derived SPARC is required for collagen-IV-dependent stability of basal laminae in Drosophila embryos

Nathalie Martinek、Jaffer Shahab、Manuela Saathoff 等 4 位作者2011-01-31Journal of Cell Science

The authors wish to publish the following addendum to J. Cell Sci. 121, 1671-1680.Further characterization of the SPARC-null fly line Df(3R)nm136, generated by P-element mutagenesis, has revealed that the line carries a secondary mutation in the neuralized locus, in addition to an absence of SPARC. We have confirmed i…

Electrospun Nanofibers in Biomedical ApplicationsBone and Dental Protein Studies

Effects of Rapid Heating on Microstructure and Mechanical Properties of Modified Vibrated Al–Si–Mg Alloys Using a Fluidized Bed

N. H. S. Swamy、Matthew Joseph、N. M. Nagarajan 等 4 位作者2011-01-31Materials and Manufacturing Processes

This article presents the results of the investigations carried out on the separate and combined effects of modification, vibration during solidification, and heat treatment (processing conditions) on the microstructure and mechanical properties of cast Al-(7/12/16)%Si-0.35%Mg alloys. Superior mechanical properties ar…

Microstructure and mechanical propertiesAluminum Alloy Microstructure PropertiesAluminum Alloys Composites Properties

High Device Yield of Resistive Switching Characteristics in Oxygen-Annealed $\hbox{SrZrO}_{3}$ Memory Devices

Meng-Han Lin、Ming-Chi Wu、Yihan Huang 等 5 位作者2011-01-31IEEE Transactions on Electron Devices

This paper reports the effects of rapid thermal annealing (RTA) on resistive switching (RS) characteristics and mechanisms of SrZrO3(SZO)-based memory devices. SZO thin films were deposited on LaNiO3(LNO) (100)/Pt/Ti/SiO2/Si using radio-frequency magnetron sputtering and were followed by an RTA process in N2, Ar, and…

Advanced Memory and Neural ComputingElectronic and Structural Properties of OxidesFerroelectric and Negative Capacitance Devices

Semi-analytic approach to diverted tokamak equilibria with incompressible toroidal and poloidal flows

Shi Bingren2011-01-31Nuclear Fusion

Generalized Grad–Shafranov equation for tokamak equilibrium with incompressible toroidal and poloidal flows is solved to obtain a double-null diverted configuration based on an approach presented before (Shi 2008 Plasma Phys. Control. Fusion 50 085006 ). This solution consists of only two terms of base functions obtai…

Magnetic confinement fusion researchFusion materials and technologiesSuperconducting Materials and Applications

Molecular beam epitaxy growth of InGaN-GaN superlattices for optoelectronic devices

C. Boney、D. Starikov、Iván Coto Hernández 等 5 位作者2011-01-31Journal of Vacuum Science & Technology B Nanotechnology and Microelectronics Materials Processing Measurement and Phenomena

In the absence of native substrates for InGaN films, the achievement of thick InGaN films of high structural quality remains a challenge. The investigation of InGaN-GaN superlattice (SL) structures is one potential way to increase optical absorption at energies below the GaN bandgap while reducing the formation of det…

GaN-based semiconductor devices and materialsMetal and Thin Film MechanicsGa2O3 and related materials

Electrostatics of Ultimately Thin-Body Tunneling FET Using Graphene Nanoribbon

Kai‐Tak Lam、Yue Yang、Ganesh S. Samudra 等 5 位作者2011-01-31IEEE Electron Device Letters

The effect of 2-D electrostatic environment on the device performance of ultimately thin-body tunneling field-effect transistors (UTB-TFETs) using graphene nanoribbons (GNRs) is investigated by varying the gate-oxide thickness and insulating material with different dielectric constants (k ). Compared to Si TFETs with…

Graphene research and applicationsSemiconductor materials and devicesAdvancements in Semiconductor Devices and Circuit Design

Artificial neural networks applied to DGA for fault diagnosis in oil-filled power transformers

Mohammad Golkhah、Sahar Saffar Shamshirgar、Mohammad Ali Vahidi2011-01-31Journal of Electrical and Electronics Engineering Research

Dissolved Gas Analysis (DGA) is a popular method to detect and diagnose different types of faults occurring in power transformers. This objective is obtained by employing different interpretations of dissolved gases in the mineral oil insulation of such transformers. This paper engages these interpretations and applie…

High voltage insulation and dielectric phenomenaPower Transformer Diagnostics and InsulationWater Quality Monitoring and Analysis

The effect of water content on the dielectric strength of polyalphaolefin (PAO) coolants

Stephen L. Gunderson、George W. Fultz、Christina Snyder 等 6 位作者2011-01-31IEEE Transactions on Dielectrics and Electrical Insulation

Many variables can affect the dielectric strength of coolants and insulating fluids including particulates, water content, temperature, viscosity, and pressure. The present paper evaluates the effects of dissolved water content, adjusted in a controlled manner, on the dielectric strength and the variability of breakdo…

Semiconductor materials and devicesHigh voltage insulation and dielectric phenomenaPower Transformer Diagnostics and Insulation

Intrinsic metastability of orthorhombic HfTiO4 in thin film hafnia-titania

Massiel Cristina Cisneros-Morales、C. R. Aita2011-01-31Applied Physics Letters

Orthorhombic (o) HfTiO4 is crystallized when sputter deposited hafnia-titania nanolaminates with ultrathin layers and bilayer (HfO2)0.5(TiO2)0.5 composition are annealed between 573 and 1173 K. However, o-HfTiO4 demixes after annealing at 1273 K, a result not predicted from bulk thermodynamics. X-ray diffraction and R…

Semiconductor materials and devicesElectronic and Structural Properties of OxidesFerroelectric and Negative Capacitance Devices

The Synthesis, Spectroscopic, Fluorescence, and Thermal Properties of a 1,10-phenanthroline Containing Derivative of Phenoxycyclotriphosphazene and its Ru(II) Complex

İbrahim Kecin、Fikriye Tuncel Elmalı、Nebahat Demirhan2011-01-31Synthesis and Reactivity in Inorganic Metal-Organic and Nano-Metal Chemistry

A new phenoxycyclotriphosphazene derivative ligand, 2-chloro -2-salicylideneimino-1,10-phenanthrolino-4,4,6,6-bis[spiro(2′,2″-dioksi-1′,1″-bifenil)]cyclotriphosp- hazane (CS-CP), has been synthesized from the reaction of 2,2-dichloro-4,4,6,6-bis[spiro(2′,2″-dioxybiphenyl)] cyclotriphosphazane and 5-salicylideneimino-1…

Metal complexes synthesis and propertiesCrystal structures of chemical compoundsLanthanide and Transition Metal Complexes