Materials Literature
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The fabrication of high performance materials using EPDM rubber and polyethylene mixtures with a low cost, nonpolluting and minimum investment technology is studied. These new materials can be used for obtaining a lot of goods for the economy, sport and private life.
The antibonding VHS of the high temperature superconductor Bi-2212 appears in the extreme overdoped regime, a part of the cuprate phase diagram little studied to date. Observation of this VHS motivated taking a fresh look at the cuprates using fundamentals of electronics as the foundation for understanding the physics…
In this thesis, two types of complex hydrides doped with transition metals as potential hydrogen storage materials were investigated using density functional theory (DFT) calculations. TiAl3 cluster as well as its interaction with hydrogen was characterized. Our calculation showed that Ti atom and three Al atoms form…
Se caracterizó estructural, vibracional y eléctricamente películas de V2O5. nH2O sintetizadas por el método de enfriamiento rápido (quenching). Las películas sometidas a tratamientos térmicos de 100 °C y 200 ºC durante 24 horas presentaron ligeras variaciones en la estructura cristalina, con orientación preferencial a…
建立冷凝回流混合酸消解，ICP—MS法测定高纯石墨中35种痕量元素的方法。采用1mL HNO3，1mL HClO4和3mL H2SO4于220℃消解0．2g样品，以Sc、Rh、Cs、Re作内标，ICP—MS法测定各元素的方法检出限为0．0006～0．1μg·L^-1，加标回收率达82％～110％，相对标准偏差（RSD，n=10）为0．58％～5．8％。该方法适用于高纯石墨中痕量杂质含量的测定。
The electrofluxed metal cost reduction can be achieved by means of getting cast consumable electrode using iron-rich pellets and ligature. Producing of the unit cast blank for ESR by method of casting into special molds is economical. In this work the authors provide calculation of the thermophysical processes taking…
-mercapto-propyl trimethoxysilane (MPTS ) 和 -methacryloxy propyltrimethoxysilane (MPTES ) 在 hydroxylated 玻璃底层上是自我装配的形成二维的器官的单层(MPTS-MPTES SAM ) 。终端 thiol 组(嘘) 在 MPTS-MPTES， SAM 在原处被氧化进酸性硫酸基的酸组(SO3H ) 赋予这部电影以好化学吸着能力。然后稀土元素(RE )( 基于镧) 合成薄电影被准备由自己组装技术基于同样准备的 SAM，利用酸性硫酸基的酸的化学吸着能力组织。自动力量显微镜(AFM ) ， X 光检查光电子 spectrometry (X…
Thermal destruction of petroleum heavy residues (tar oil, asphalt, visbreaking residue) obtained from JSC ”Naftan” has been studied by differential scanning calorimetry and thermogravimetry. Petroleum residues thermal transformations have been ascertained to have three stages. On the first stage at 250-380.C weak chem…
Very small amount of U-232 is included in UO3 powder reprocessed from spent fuel. Bi-212 and Tl-208 (those are) the daughter nuclides of U-232 are the major gamma sources and they increase the gamma dose rate on the surface of UO3 storage container. So, it is necessary to pay attention to the exposure doses of workers…
Functionalization and selected area deposition of carbon coated iron nanoparticles form solution
Photonic crystals are periodic structures that are formed from a material of certain refractive index organized into a regular lattice that is surrounded by a medium having a different refractive index. The difference between these refractive indices determines the nature of the so‐called photonic bandgap, which is an…
The electron and nuclear spin degrees of freedom in two-dimensional semiconductor quantum dots are studied as important resources for such fields as spintronics and quantum information. The coupling of electron spins to their orbital motion, via the spinorbit interaction, and to nuclear spins, via the hyperfine intera…
Um die Bedeutung unterschiedlicher Aufnahmewege für die interne Verfügbarkeit und Akkumulation von Cadmium zu untersuchen, wurde C. elegans über verschiedene Partikel und über Medium dem Schadstoff exponiert. Die biologische Verfügbarkeit wurde anhand der veränderten cdr-1-Genexpression mittels Real-Time-PCR bestimmt.…
This chapter contains sections titled: Moments of response of a one-degree-of-freedom linear system: irregularity factor of response Autocorrelation function of response displacement Average numbers of maxima and minima per second Equivalence between the transfer functions of a bandpass filter and a one-dof linear sys…
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 2009.
Structural change of a molten Cu55 cluster on Cu（010） substrate during freezing at two different cooling rates is investigated by molecular dynamics simulations based on the embedded atom method. The analyses of energy per atom and pair distribution functions show that cooling processes have great influence on the str…
Mercaptoacetic acid-stabilized CdTe quantum dots (QDs) are prepared directly in aqueous solution. The multi-layer films of acrylate copolymer and CdTe nanoparticles were obtained by the layer-by-layer electrostatic self-assembly. It is shown that positively charged acrylate copolymer can be directly assembled outside…
脱落酸（ABA）在植物的生长发育和环境胁迫响应等过程中具有重要作用。ABA合成与分解代谢的动态平衡共同调控植物内源ABA水平。ABA 8’位甲基羟基化途径是高等植物内源ABA代谢的主要途径；8＇-羟化酶是该代谢途径的关键酶，属于P450酶系。生物化学和基因组学研究表明，拟南芥CYP707A家族基因编码8’-羟化酶，该基因家族广泛存在于高等植物中，调控植物内源ABA代谢，介导ABA相关的生理生化过程。本文综述了ABA分解代谢的基本途径，详细概述了ABA8’位甲基羟基化途径及该代谢途径的关键酶8，-羟化酶。同时介绍了8＇-羟化酶编码基因-CYP707A家族基因的生物学特征和功能。
Understanding of the catalytic domains within porous catalysts is essential for control of these systems in order to obtain desired reaction yields and selectivities. This body of work consists of studies on two types of porous catalysts, mesoporous silica and zeolites, that can have interesting cooperative catalytic…
Doping in zinc oxide (ZnO) thin films were discussed in this dissertation.The optimizations of undoped ZnO thin film growth using molecular-beam epitaxy (MBE) were discussed. The effect of the oxygen ECR plasma power on the growth rate, structural, electrical, and optical properties of the ZnO thin films were studied.…