Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
Attempts have been made to estimate corrosion rate and electrochemical parameters of aluminum in 5 mass% phosphoric acid solution which is in open-to-air and stagnant solution condition in the view point of corrosion weight loss and polarization measurements. It is shown that the dissolution of aluminum in phosphoric…
采用化学沉淀法在富锂层状正极材料0.5Li2MnO3？0.5LiNi1/3Co1/3Mn1/3O2表面包覆一层SrF2薄膜。利用X射线衍射仪、扫描电子显微镜、透射电子显微镜和充放电测试技术研究SrF2包覆对正极材料的晶体结构、微观形貌和电化学性能的影响。结果表明,正极材料表面包覆了一层厚约20-30nm的SrF2膜。包覆SrF2后,材料的首次库仑效率从70.5%增加到72.7%,且包覆改善了材料的倍率性能和循环性能。随着充放电倍率的增大,包覆样与未包覆样的放电容量差值随之增大;包覆样循环40次后容量保持率为95.1%,高于未包覆样84.8%的容量保持率。
Networked nanographite (NNG) was grown by using photoemission-assisted plasma enhanced chemical vapor deposition (CVD) on SiO2 (90 nm) /Si substrates and the career gas dependence of electric resistivity, chemical configuration, and grain size was investigated from Raman spectroscopy, SIMS, and four probes method. In…
In this paper, we present a new method for simultaneous diagnosis of fault in distribution transformer. It uses an adaptive neuro-fuzzy inference system (ANFIS), based on Dissolved Gas Analysis (DGA). The ANFIS is first trained in accordance with IEC 599, so that it acquires some fault determination ability. The CO2/C…
Chondrocytes grown from cartilage explants and then cultured with rehydrated previously desiccated thin strands of cartilage called "cartilage fluff matrix" or "fluff" filled the gaps between the strands of fluff making new cartilage and invaded the cartilage strands. The cells stained similar to the deep layers of no…
采用天然碳酸盐矿物(方解石、白云石)作为吸附剂,以去除废水中的Cd2+,试验了废水中Cd2+初始浓度、pH值、反应时间、温度及吸附剂粒径等因素对Cd2+去除效果的影响。其中Cd2+初始浓度、pH值、反应时间对Cd2+的去除率影响更为显著:Cd2+初始浓度为3.2 mg·L-1时,方解石、白云石对Cd2+去除率达到96.53%、95.42%,但随着初始浓度的增加去除率降低;当Cd2+废水pH值为7.0时,方解石、白云石对Cd2+的去除率分别为95.0%、99.44%,酸性条件下Cd2+的去除率较低;去除率随反应时间增加而增加,当反应时间为24 h时,方解石、白云石对Cd2+去除率达到98.1%、95.7%。利用去离子水与0.01 m…
Нанолисты оксида графена получали химической конверсией графита; они были охарактеризованы методами просвечивающей электронной микроскопии и ИК-спектроскопии с преобразованием Фурье. Разработан электрохимический сенсор на основе пленки композита никельграфен путем внедрения Ni2+ в стеклоуглеродный электрод, модифицир…
У энтеробактерий известно два семейства специфических секретируемых ингибиторов лизоцима типа C, выделяемых из периплазматического пространства: Ivy и PliC. Способность микроорганизмов к дистантной инактивации лизоцима (антилизоцимная активность) максимально проявляется у штаммов и видов, несущих гомологи гена pliC. П…
金属材料の接着接合に必要な表面処理技術について解説した。従来からの溶接に代わって採用されつつある接着剤を用いる接着接合では，利点もあるが欠点もあるので，欠点を最小とするための考慮が必要である。初期接着強さの改善と接着強さのばらつき幅の低減には，表面の接着性を向上させるために何らかの表面処理を実施することが望ましい。表面の接着性を大きく改善するには，薬品や活性ガスやプライマーなどの処理が必要である。表面処理の手法には，以前から種々の手法が採用されているが，金属でも活性ガスを用いた乾式洗浄が注目されている。
GaN micro- (or nano-) column structures have been studied in an attempt to enhance the LED performance by improving the light extraction and reducing the strain due to the large lattice mismatch between GaN and InGaN. Nowadays columnar LEDs are drawing attention as a candidate for a multicolor emission source as illus…
It is known that zwitterions acquire a positive electrical charge under the isoelectric point (I.P.), which increases its adsorption to hairs. We focused on this unique property of zwitterions to increase the amount of adsorption to hair. The target compound was 2-(dimethyldocosylammonio)ethyl octadecyl ethyl phosphat…
日本は，社会インフラの老朽化にともなうメンテナンスの時代が到来している。安心・安全を第一にこれら社会インフラ，とくに鋼構造物の耐力を維持するためには“防食”の担う役割は今後ますます増大する。本報は，重防食塗装の歴史に触れた後，近年の重防食塗装のトレンドとして，VOC削減などの環境負荷低減や，高耐久性材料，省工程型塗料を用いたライフサイクルコストの低減，さらには塗膜診断による適正な塗り替えについて一部紹介する。
This paper is based on bio heat transfer equation and demonstrates its application in solving one dimensional physiological heat distribution problems pertaining to limbs. The biological properties are assumed to vary along the radial direction. The dermal region is made up of three layers, namely epidermis, dermis, a…
采用射频等离子体增强化学气相沉积（RF-PECVD）技术，使用SiH4加GeH4的反应气源组合生长微晶硅锗（μc-Sil-xGex：H）薄膜．研究了电极间距对μc-Sil-xGex：H薄膜结构特性的影响．发现薄膜中的Ge含量随电极间距的降低逐渐增加．当电极间距降至7mm时，μc-Sil-xGex：H薄膜具有较大的晶粒尺寸并呈现较强的（220）择优取向，同时具有较低的微结构因子．通过薄膜结构特性的变化分析了反应气源的分解状态，认为Ge含量的提高主要是SiH4的分解率降低所导致的．在较窄的电极间距（7mm）下，等离子体中GeH3基团的比例较大，增强了Ge前驱物的扩散能力，使μc-Sil-xGex：H薄膜的质量得到提高．
1Laboratoire d’Energetique Moleculaire et Macroscopique, Combustion, UPR CNRS 288, Ecole Centrale Paris, Grande Voie des Vignes, 92295 Châtenay-Malabry, France. 2CIRMM, Institute of Industrial Science, University of Tokyo, Japan. 3Ecole Centrale Paris, Laboratoire de Photonique Quantique et Moleculaire, CNRS (UMR 8537…
Synthesis of hollow nano silica particles with methyl groups based on inorganic template method. Typically, silica coating on calcium carbonate template is formed via sol-gel reaction, and then template is removed by addition of diluted hydrochloric acid solution. When a methyltriethoxysilane （MTES） having one methyl…
U FDTD (Finite Difference Time Domain) računarskim simulacijama elektromagnetskih polja često je potrebno pored tačkastih izvora, čije se polje prostire u svim pravcima numeričkog domena, implementirati i izvore čije se polje prostire samo u jednom pravcu
A Doctoral Thesis. Submitted in partial fulfilment of the requirements for the award of Doctor of Philosophy of Loughborough University.
The preparation process of ultrafine ultra-thin Ni80Cr20 alloy wire was studied by cold drawing. The property of NiCr alloy wire was characterized by SEM, XRD and tensile tester. The results show that the optimal electrolyte concentration and time were 0.05 mol/L and 3 s in the process of electrolytic corrosion, respe…
采用非等温动态示差扫描量热法（DSC）和热失重分析法（TGA）研究了N,N,N’,N’-四缩水甘油胺-3,3’-双（4-氨基苯氧基）二苯砜/甲基纳迪克酸酐/2-乙基-4-甲基咪唑（TGBAPS/MNA/EMI-24）体系的固化反应过程及固化物的热稳定性。由Kissinger方程和Ozawa方程求得该体系固化反应的表观活化能分别为84.1kJ/mol和87.1kJ/mol;由Crane方程求得固化反应近似为一级反应;TGBAPS/MNA/EMI-24体系固化物具有良好的耐热性能,其Tg为215℃,5%、15%和30%的失重温度分别为317℃、331℃和359℃。