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Cu（OH）2-CuS04-H20系热力学平衡研究

黎彬、杜玮、郭亚文 等 4 位作者2012-01-01Acta Scientiarum Naturalium Universitatis Sunyatseni

根据热力学平衡原理，绘得Cu（OH）2-CuSO4-H2O体系在298．15K条件下的平衡pc-pH图。pc．pH图描述了不同铜离子的平衡浓度与pH值关系：pH值在3．49～4．76时，CuSO4的溶解度最小；pH值在7．32～10．68时，Cu（OH）2的溶解度最小。同时查明了Cu（OH）2和CuSO4在水中共同存在时对溶解度相互影响的规律。研究结果可为含铜废液的处理及铜的回收利用提供理论依据。

Copper-based nanomaterials and applicationsMetal Extraction and BioleachingChemical and Physical Properties in Aqueous Solutions

Определение граничных условий и физических свойств кусочно-однородного целика

Андрей Анатольевич Красновский2012-01-01Interexpo GEO-Siberia

The article considers a method to reconstitute contact conditions and mechanical characteristics of loading a compound pillar without regard to regularization. The stepwise approximation algorithm has been constructed, and it is shown in the article that the discrepancy of an approximate solution and an exact solution…

Advanced Theoretical and Applied Studies in Material Sciences and GeometryStructural mechanics and materials

Thermoelectric and electrical characterization of Si nanowires and GaNAs

P. Pichanusakorn2012-01-01eScholarship (California Digital Library)

Thermo-electricity offers an elegant solution to the problem of heat-to-electricity conversion. As a completely solid-state heat engine, thermoelectric materials confer many advantages in electricity generation and heat pumping. However, the efficiency of thermoelectric material, represented by the figure of merit, Z,…

Advanced Thermoelectric Materials and DevicesNanowire Synthesis and ApplicationsSemiconductor Quantum Structures and Devices

Ionic Liquids as Solvents for Catalytic Conversion of Lignocellulosic Feedstocks

Sean Joseph Dee2012-01-01eScholarship (California Digital Library)

The deconstruction and upgrading of lignocellulosic biomass dissolved in ionic liquids was studied as a potential alternative route to products traditionally synthesized from petroleum. While domestic biomass is a cheaper, lower carbon emission, alternative feedstock to petroleum, its utilization requires the selectiv…

Advanced Cellulose Research StudiesBiofuel production and bioconversionCatalysis for Biomass Conversion

Metal components of ceramic oxide fuel cells

Mark Reid2012-01-01Research Online (University of Wollongong)

The subject of this thesis is the metallurgical stability of an alloy selected for use in a ceramic oxide fuel cell. Fuel cells are a new and developing power generation technology with numerous designs and materials being considered for the construction of fuel cells. One particular design, a multilayer, laminated fu…

Advanced materials and compositesAdvanced Materials Characterization TechniquesMetallurgical and Alloy Processes

Understanding the electro-catalytic oxidation mechanism of urea on nickel electrodes in alkaline medium

Vedasri Vedharathinam、Gerardine G. Botte2012-01-01Default journal

Abstract In this paper, the electrocatalytic behavior of urea oxidation on a nickel electrode in alkaline medium was investigated using various electrochemical techniques: cyclic voltammetry (CV), linear sweep voltammetry (LSV), and rotating disc electrode voltammetry (RDE). Possible mechanisms have been proposed on t…

Electrocatalysts for Energy ConversionConducting polymers and applicationsElectrochemical Analysis and Applications

Silkworm silk cocoon structure-property relationship

Jasjeet Kaur2012-01-01Figshare

A collection of images examining the microstructure of raw cocoons. The research investigates how the microstructure varies from one layer to another in the same cocoon and also from one cocoon variety to another. The research is being undertaken to study the structure and property relationships, specifically the anti…

Silkworms and Sericulture ResearchInsect Utilization and EffectsSilk-based biomaterials and applications

PA1212-b-PEG嵌段共聚物的合成和非等温结晶动力学研究

霍丽、郭林2012-01-01广州化工

采用DSC方法研究了PA1212-b-PEG在不同降温速率下的结晶过程,并利用Avrami方程研究了其非等温结晶动力学。在非等温结晶过程中,随着降温速率的增大,结晶温度向低温偏移。综合利用Avrami方程得到Avrami指数为4,说明结晶是以异相成核,三维生长。

Synthesis and properties of polymersLiquid Crystal Research AdvancementsSolidification and crystal growth phenomena

“教师流动”大家谈——教师流动需践行角色转换

薛茂红2012-01-01江西教育：教学版

教师的不均衡分布，是各类学校之间存在悬殊差距的重要原因，因此教育均衡需要教师的合理流动。然而，在现实中由于种种原因，教师流动存在着一些困难，要么有教师不愿流动，要么有教师被动流动。那么怎样让教师真心流动、争先流动呢？至少需要以下三种角色的转换。一是接受方在待遇上要厚待流动教师。流动教师不是“流放”，而是客人。

Characterization and Applications of Magnetic NanoparticlesMicro and Nano RoboticsNanoparticle-Based Drug Delivery

Fabrication and Optical Properties of ZnO Nanocrystal/GaN Quantum Well Based Hybrid Structures

Kuo Chieh-Yi2012-01-01KTH Publication Database DiVA (KTH Royal Institute of Technology)

Optical properties of hybrid structures based on zinc oxide nanocrystals (NCs) and Gallium Nitride quantum well (QW) has been studied. The ZnO NCs thin films on the top of GaN QW structures were fabricated using spin coating. The surface morphology was characterized by scanning electron microscopy (SEM). We have perfo…

GaN-based semiconductor devices and materialsZnO doping and propertiesGa2O3 and related materials

Study of the Electrochemical System of Antimony-Tellurium in Dimethyl Sulfoxide for Growth of Nanowire Arrays, and an Innovative Method for Single Nanowire Measurements

Philip Kalisman2012-01-01ProQuest Demo Repository

There is a strong interest in thermoelectric materials for energy production and savings. The properties which are integral to thermoelectric performance are typically linked, typically changing one of these properties for the better will change another for the worse. The intertwined nature of these properties has lim…

Chalcogenide Semiconductor Thin FilmsAdvanced Thermodynamics and Statistical MechanicsAdvanced Thermoelectric Materials and Devices

Технология нанесения наноструктурных многофункциональных покрытий на детали горно-шахтного оборудования

Г. С. Жетесова、Alexandra Zhukova、Д. С. Жунуспеков 等 4 位作者2012-01-01Международный журнал экспериментального образования

New materials are the foundation of 21st century technology. Nanosystems and materials industry one of the priority directions of science and technology, today affecting almost all areas of research and activities. An important and rapidly developing area of materials science is applied to the surface engineering of t…

Material Properties and Applications

Strategie per l’avvicendamento di colture da energia

Andrea Monti、Mekonnen Hailemariam Giweta、Darío Fernando Luna 等 7 位作者2012-01-01Archivio istituzionale della ricerca (Alma Mater Studiorum Università di Bologna)

Fra le specie annuali a uso energetico adatte \nai nostri areali, alcune sono ampiamente note \n(mais, colza, girasole, ecc.) e non comportano \nquindi particolari problematiche, altre sono \ninvece di nuova introduzione (sorgo, kenaf, \ne canapa) e quindi a più incerta collocazione \nnegli avvicendamenti colturali

Metallurgy and Material ScienceDiverse academic and cultural studies

氯化石蜡-52（T302）的改性及其摩擦性能研究

孔令杰、张东恒、官婷婷 等 4 位作者2012-01-01Acta Scientiarum Naturalium Universitatis Sunyatseni

以二正丁基胺、二硫化碳等合成了中间体二正丁基二硫代氨基甲酸钠,并用其通过亲核取代反应对氯化石蜡-52（T302）进行了化学改性。用红外、元素分析和热重等手段进行了表征和分析。采用多功能摩擦试验机、四球摩擦磨损试验机、旋转氧弹、PDSC等试验手段,考察了该添加剂在HVI150基础油中的摩擦学性能和抗氧化效应。结果表明,改性后的添加剂T302G具有良好润滑性能和辅助抗氧作用。

Magnesium Oxide Properties and ApplicationsMetal-Organic Frameworks: Synthesis and ApplicationsThermal and Kinetic Analysis

РАЗРАБОТКА ЭКОНОМНОЛЕГИРОВАННОЙ СТРОИТЕЛЬНОЙ СТАЛИ КЛАССОВ ПРОЧНОСТИ 345 И 390

Морозов Юрий Дмитриевич、Науменко Алексей Александрович、Нижельский Дмитрий Вадимович 等 4 位作者2012-01-01Metallurg

Выполнен анализ применяемых при производстве сварных строительных металлоконструкций сталей в современной отечественной и зарубежной практике. Выявлены общие тенденции и различия в системах легирования сталей, используемых для производства толстолистового проката из наиболее массово применяемых классов прочности. В ла…

Engineering and Environmental StudiesMaterial Properties and Failure MechanismsIndustrial Engineering and Technologies

Effect of layering methods, composite type, and flowable liner on the polymerization shrinkage stress of light cured composites

권영철2012-01-01Seoul National University Open Repository (Seoul National University)

Objective: The aim of this study was to investigate the effect of layering methods using a methacrylate-based composite, a flowable composite liner and a low shrinkage silorane-based composite on the polymerization shrinkage stress of light cured composites.\n\nMethods: Twenty four aluminum blocks were used to prepare…

Epoxy Resin Curing ProcessesPhotopolymerization techniques and applicationsMaterial Properties and Applications

Effects of Structural and Compositional Characteristics on the Electrical and Optical Properties of InGaN/GaN Multi Quantum Wells

구길호2012-01-01Open Access System for Information Sharing (Pohang University of Science and Technology)

The atomic structure, composition and epitaxial quality in the vicinity of the interface between GaN and InGaN in the multi-quantum wells (MQWs) determine the optical, electrical, and mechanical properties of the optoelectronic devices. GaN-based light-emitting diodes (LEDs) contain a quantum confinement structure wit…

Ga2O3 and related materialsMetal and Thin Film MechanicsGaN-based semiconductor devices and materials