USDOE Office of Science (SC)、C. Skinner、R. Sullenberger 等 6 位作者2012-07-20OpenAlex
Lithium conditioned plasma facing surfaces have lowered recycling and enhanced plasma performance on many fusion devices. However, the nature of the plasma-lithium surface interaction has been obscured by the difficulty of in-tokamak surface analysis. We report laboratory studies of the chemical composition of lithium…
Particle accelerators and beam dynamicsMagnetic confinement fusion researchFusion materials and technologies
Lu‐Tao Weng、Chi‐Ming Chan2012-07-20Wiley Encyclopedia of Composites
Abstract Surface analysis has played an important role in the development of many advanced materials, including composites. This article describes the principles and instrumentation of the three most widely used surface analysis techniques: X‐ray photoelectron spectroscopy (XPS), Auger electron spectroscopy (AES), and…
Ion-surface interactions and analysisDiamond and Carbon-based Materials ResearchElectron and X-Ray Spectroscopy Techniques
Takanori Ago2012-07-20Institutional Repositories DataBase (IRDB)
This paper extends a mixed oligopoly model developed by Matsushima and Matsumura (MM) into a two-dimensional space with one public firm and two private firms. By doing so, another type of equilibrium is established : In one dimension the private firms choose the same location, whereas in the other dimension they are l…
Modular Robots and Swarm Intelligencebiodegradable polymer synthesis and properties
Parantap Sarkar2012-07-20theses.fr (ABES)
Les nanorubans de graphene (NRGs) sont des materiaux prometteurs pour l'organique electronique, a mi chemin entre polymeres conjugues et nanotubes de carbone. Deux approches differentes pour la synthese de nanorubans aromatiques sont developpees et evaluees. La premiere est fondee sur la formation de ceramidonines par…
Carbon Nanotubes in CompositesSynthesis and Characterization of PyrrolesMulticomponent Synthesis of Heterocycles
王春波、雷鸣、阎维平 等 5 位作者2012-07-20OpenAlex
利用高压热重?傅里叶红外联用的方法研究大同烟煤在增压富氧条件下燃料 N 的释放行为,主要考察压力对 NOx排放特性的影响.实验结果表明,压力的改变对燃料 N 的迁移转化过程影响显著.由于含氮前驱体的生成机制不同,压力升高后,其转化率变化规律并不一致.随着压力的升高,挥发分产量的增加,燃料 N 向 NO 的转化率逐渐上升.在2 MPa 以下时,由于 NO 浓度和氧分压的增加,燃料 N 向NO2的转化率逐渐升高,但在3 MPa 时,随着 NO2分解速率的加快和产量的减少,NO2的转化率有所下降.燃料 N向 NOx 的转化率随着压力升高单调增加
Advanced Combustion Engine TechnologiesCatalytic Processes in Materials ScienceIndustrial Gas Emission Control
魏浩铭、巩海波、曹丙强2012-07-20Journal of Inorganic Materials
采用电化学沉积法制备了ZnO纳米棒, 首先讨论了电化学沉积参数对氧化锌(ZnO)纳米棒形貌的影响, 并对不同长度ZnO纳米棒的光吸收和反射等性质进行了研究. 实验发现沉积时间是影响纳米棒长度、直径的重要因素, ZnO纳米棒的微观形貌对其光学性质有重要影响. 然后以氧化锌纳米棒为n型材料, 以氧化亚铜为p型材料, 通过电化学沉积法构筑了ZnO/Cu 2 O异质结太阳能电池, 并测试了其光伏性能, 研究表明增长纳米棒阵列的长度使得开路电压、短路电流密度及光电转换效率等性能得到提升. 最后, 综合分析了氧化锌纳米棒形貌与所组装电池的性能之间的关系, 发现调控氧化锌纳米棒的形貌是提高ZnO/Cu 2 O异质结太阳能电池光伏性能的有效途径.
Solar-Powered Water Purification MethodsCopper-based nanomaterials and applicationsSupercapacitor Materials and Fabrication
Tanja Tomić2012-07-20OpenAlex
This paper reflects on the weldability of steel API 5L X80. The steel was delivered in a plate form, and was produced by the TMCP (Thermo Mechanical Controlled Process). FCAW (Flux Cored Arc Welding) was applied as a welding technology using three different filled wires. The flux in the wires was of rutile and basic c…
Hydrogen embrittlement and corrosion behaviors in metalsMetal and Thin Film MechanicsWelding Techniques and Residual Stresses
Jamiatul Akmal2012-07-20OpenAlex
Adhesive joint is commonly used in composite pipe connection. The problem is still frequent failure, failures usually starts from the edges and propagate to the center. This is due to uneven stress distribution and stress concentration at the edge of the connection. To further believe that, in this st udy carried out…
Material Selection and PropertiesStructural Load-Bearing AnalysisEngineering Structural Analysis Methods
M. Montabone2012-07-20Wiley Encyclopedia of Composites
Abstract In the frame of the space applications, the trend of looking for light weight and higher performance spacecraft structures is considered a design driver for the cost reduction and exploration applications. In commercial applications, the saving of few kilograms per pounds enable the decreasing of the fuel mas…
Material Properties and ApplicationsSpacecraft Design and TechnologyStructural Analysis and Optimization
Diogo Queirós2012-07-20Portuguese National Funding Agency for Science, Research and Technology (RCAAP Project by FCT)
A eficácia do processo de produção de polihidroxialcanoatos (PHA) por culturas microbianas mistas (MMC) depende da fase de selecção de culturas. Este passo é determinante para o passo seguinte de acumulação, pois a sua optimização depende da estabilidade e da capacidade de produção da cultura seleccionada. Neste proje…
biodegradable polymer synthesis and propertiesRecycling and Waste Management TechniquesAdditive Manufacturing and 3D Printing Technologies
Antonopoulou, Sofia K.2012-07-20DSpace - NTUA (National Technical University of Athens)
Σκοπός της παρούσας μεταπτυχιακής εργασίας είναι η σύνθεση, ο χαρακτηρισμός και η συγκριτική συμπεριφορά επισκευαστικών υλικών δομικών στοιχείων. Ακόμα, αποτιμάται η αποτελεσματικότητα της επισκευής δοκιμίων σκυροδέματος και οι παράγοντες που την επηρεάζουν. Πιο συγκεκριμένα, πραγματοποιήθηκαν συνθέσεις γεωπολυμερικών…
Material Selection and PropertiesEpoxy Resin Curing ProcessesInnovations in Concrete and Construction Materials
Stephen Y. Chou、Wen‐Di Li、Fei Ding 等 9 位作者2012-07-20OpenAlex
Abstract : Princeton University has carried out research to investigate the physics of surface-enhanced Raman scattering (SERS), develop new nanostructure designs to control and increase SERS sensitivity, and to use innovative high-precision large-area nanopatterning technologies to fabricate SERS nanostructures. Part…
Advanced Nanomaterials in CatalysisGold and Silver Nanoparticles Synthesis and ApplicationsQuantum Dots Synthesis And Properties
Σάββας, Δημήτριος Νικηφόρος2012-07-20DSpace - NTUA (National Technical University of Athens)
Στην παρούσα μεταπτυχιακή εργασία εξετάζονται οι μηχανικές ιδιότητες καθώς και η ικανότητα απόσβεσης ταλαντώσεων, δοκιμίου αποτελόύμενο από πλαστικό υλικό ενισχυμένο με νανοσωλήνες άνθρακα (ΝΣΑ), που υπόκειται σε ανακυκλιζόμενη φόρτιση. Ειδικώτερα μελετάται η επίδραση της διεπιφανειακής διατμητικήςαντοχής (ΔΔΑ)του υλι…
Epoxy Resin Curing ProcessesPolymer Foaming and CompositesInjection Molding Process and Properties
Ζαχαρίας Χ. Γιάχος2012-07-20DSpace - NTUA (National Technical University of Athens)
Στα πλαίσια αυτής της διπλωματικής εργασίας μελετάται το φαινόμενο του καμπτικού και του στρεπτοκαμπτικού λυγισμού σε μέλη από χάλυβα S235. Σε πολλές περιπτώσεις φόρτισης που ένα μελος καταπονείται από αξονική θλιπτική δύναμη και μονοαξονική ή διαξονική κάμψη, ενδέχεται να χάσει την ευστάθεια του, προτού εξαντληθεί η…
Composite Material MechanicsMaterial Selection and PropertiesCalcium Carbonate Crystallization and Inhibition
林旻、MinLin b Jingwu Zheng a2012-07-20Ningbo Institute of Materials Technology and Engineering, CAS Institutional Repository
A 50 mm Al–CrcoatingonNdFeBsinteredmagnetswaspreparedthroughdippinginsolution,\nshaking dry andheatingat300 1C. ThemorphologyandcompositionoftheAl–Crcoatingwereinvestigated with scanningelectronmicroscope,\nenergydispersivespectrometerandX-raydiffraction.Thecorrosion\nresistanceofNdFeBsinteredmagnetswithandwithouttheA…
Magnetic Properties of AlloysMagnetic properties of thin filmsMagnetic Properties and Applications
Slamet Ardwian Mulyana2012-07-20OpenAlex
Tuntutan dalam memberikan keakuratan data dalam kemajuan teknologi yang berkembang pesat telah memberikan dorongan pada teknologi ilmu pengetahuan bahan. Salah satu material yang berkembang pesat adalah komposit. Dimana komposit adalah dua lapisan yang digabungkan untuk mendapatkan kekuatan suatu bahan yang maksimal.P…
Material Selection and PropertiesGeotechnical and construction materials studies
Ir Rachmad Basuki2012-07-20OpenAlex
Jalur jalan pantai utara pulau jawa (Pantura) merupakan jalur transportasi strategis dan ekonomis dengan volume lalu lintas padat dan beban kendaraan tinggi. Permukaan jalan yang ada merupakan lapisan beraspal yang cukup tebal hasil pelapisan(overlay) beberapa kali dan lapis pondasi jalan yang ada diperkirakan sudah m…
Geotechnical and construction materials studiesUrban Transport Systems AnalysisMaterial Selection and Properties
Rahmat Fauzinudin2012-07-20OpenAlex
Pembentukan membran perovskit La0,7Sr0,3CoyFe1-y (0,6≤y≤1,0) dengan diameter 55 mm berhasil dilakukan pada tekanan 7 ton, dengan bantuan aditif amilum sebagai binder. Kelima jenis membran yang dihasilkan menunjukkan kerapatan yang lebih baik pada sintering suhu 1250 oC daripada sintering suhu 1100 oC, karena pemanasan…
Catalytic Processes in Materials Science
Cornel H Driessen、Donatta Y-J Ji、Amin S. Rizkalla 等 4 位作者2012-07-20PubMed
This study evaluated the diametral tensile strength of composite resin core materials with and without fiber dowels. Eight groups were established (n = 20), four with composite resins and four with fiber dowels. Samples were tested using a universal testing machine and evaluated using scanning electron microscopy. One…
Dental materials and restorationsMechanical Behavior of CompositesTextile materials and evaluations
沙依甫加马力·达吾来提、马凯、玉苏音·买苏木2012-07-20大学物理
本文首先对电磁理论中的对偶对称性以及对偶变换做了简要回顾.然后讨论了与电磁相互作用相联系的Aharonov-Casher和He—McKellar—Wilkens相位之间的对偶对称性.最后,在宇称不守恒但具有相对论不变性的条件下,给出了一般情况下描述Aharonov—Casher和He—McKellar—WilkeBS相位之间对偶对称关系的拉格朗日量,从而建立了统一的、不依赖于模型的描述Aharonov-Casher和He—McKellar—Wilkens相位之间对偶对称关系的方法.
Advanced Chemical Physics StudiesMagnetism in coordination complexesAdvanced NMR Techniques and Applications