Materials Literature
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Bismuth chalcogenides Bi$_2$Se$_3$ and Bi$_2$Te$_3$ are semiconductors, which can be both thermoelectric materials (TE) and topological insulators (TI). Lattice defects arising from vacancies, impurities, or dopants in these materials are important in that they provide the charge carriers in TE applications and compro…
While each atom species in PbSe corresponds to a single crystallographic site and transport measurements reveal a single carrier density, $^{207}$Pb NMR reveals a more complicated picture than previously thought comprising three discrete homogeneous carrier components, each associated with $n$- or $p$-type carrier fra…
We have compared and contrasted magnetic, magnetocaloric and magnetoresistive properties of Gd and Dy members of the rare-earth (R) series RFe5Al7, crystallizing in ThMn12 structure, known to order antiferromagnetically. Among other observations, we would like to emphasize on the following novel findings: (i) There ar…
Non-invasive local probes are needed to characterize bulk defects in binary and ternary chalcogenides. These defects contribute to the non-ideal behavior of topological insulators. We have studied bulk electronic properties via $^{125}$Te NMR in Bi$_2$Te$_3$, Sb$_2$Te$_3$, Bi$_{0.5}$Sb$_{1.5}$Te$_3$, Bi$_2$Te$_2$Se an…
A decade ago, a macroscopic theory for closure relations has been proposed for systems out of Onsager's region. This theory is referred to as the "Thermodynamic Field Theory" (TFT). The aim of the work was to determine the nonlinear flux-force relations that respect the thermodynamic theorems for systems far from equi…
Cerium oxide nanoparticles (CeO2 NPs) were synthesized using Aspergillus niger culture filtrate. The mycosynthesized CeO2 NPs were characterized by UV–Visible (UV–Vis), Fourier Transform Infrared (FT-IR), X-ray diffraction (XRD), Micro Raman, Thermogravimetric/Differential Thermal Analysis (TG/DTA), Photoluminescence,…
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Established in 1964, the IUCN Red List of Threatened Species has evolved to become the world’s most comprehensive information source on the global conservation status of animal, fungi and plant species.
Oriental Journal of Chemistry is a peer reviewed quarterly research journal of pure and applied chemistry. It publishes standard research papers in almost all thrust areas of current chemistry of academic and commercial importance. It provides a platform for rapid publication of quality research papers, reviews and ch…
This PDF file contains the front matter associated with SPIE Proceedings Volume 9497, including the Title Page, Copyright information, Table of Contents, Introduction (if any), Authors, and Conference Committee listing.
Experimental work is held to investigate how nanoparticle affects the hydrodynamic properties of the fluid.Nano zinc oxide particles with different diameters using different time duration with ultrasonic method are produced.Thermal conductivity enhancement, changes in viscosity, heat capacity, shear rate and density o…
Toward the realization of sustainable society, the use of biomass has gathered much attention. However, many of the biomasses do not show thermoplasticity ; the lignocelluloses, which is the most abundant biomass, also does not show thermoplasticity that conflicts with the conventional polymer processing. For further…
无论对深入理解电子-原子的作用机制，还是在材料等领域的实际应用，电子轰击原子的内壳电离截面都具有重要意义。当前电子碰撞引起原子内壳电离的实验数据多集中在几十keV 入射能量和中小Z 靶原子,其它数据相对比较缺乏。本工作以能量为1.0 MeV电子轰击Ta 和Au 靶，通过测量靶原子特征X射线的产额，获得其K壳电离截面分别为13.3 和10.1 b，L 壳电离截面分别为554 和338 b。并将实验结果和相应的理论进行了对比，结果显示，本实验测得的K壳电离截面与Casnati、Hombourger 理论值、L 壳电离截面与Scoeld和Born-Bethe 的理论值相符。 Accurate experimental data for…
Objective To evaluate the relationship between glucose-regulated protein 78 (GRP78) and diabetes mellitus-induced influence on myocardial protection provided by remifentanil postconditioning in vitro. Methods H9c2 cells were cultured in DMEM/F12 culture medium supplemented with 10% fetal bovine serum. The cells were s…
The work is devoted to the analysis of integrated capabilities improve toxicity and fuel efficiency of automobile and tractor engines while maintaining a sufficient level reliability of their designs through the use of automatic control systems of thermal State. Based on data carried out by motor experiment solved com…
We propose an Adaptive Perfectly Matched Layer (APML) to be used in diffraction grating modeling. With a properly tailored co-ordinate stretching depending both on the incident field and on grating parameters, the APML may efficiently absorb diffracted orders near grazing angles (the so-called Wood's anomalies). The n…
采用浸渍法合成了Cu-Mn/gama-Al 2 O 3 催化剂, 通过XRD、BET、H2-TPR和XPS等方法对经不同温度(300~600℃)焙烧的催化剂进行表征, 采用固定床管式反应装置考察了焙烧温度对催化剂催化氧化甲苯的影响, 并讨论活性组分、表面Cu + /(Cu + +Cu 2+ )和Mn 4+ /(Mn 4+ +Mn 3+ )摩尔比值与催化剂活性的关系。结果发现, 550℃焙烧温度的催化剂活性最好, 氧化能力最强, 其转化率为95%时对应的反应温度 T 95 (286℃)最低, CO 2 的选择性达100%。在550℃焙烧时生成的Cu 1.4 Mn 1.6 O 4 新相以及催化剂表面中相对含量更高的Cu + 和Mn 4…
The orientation dynamics of low-mass compounds (LMCs) in cross-linked rubber during uniaxial stretching were studied. Small amounts of LMCs such as4-cyano-4'-pentylbiphenyl (5CB) and styrene-based tackifier (TF) were added into polybutadiene rubber (BR). The rubber sheets were uniaxially stretched by a tensile machine…
Subject of Research. Computation of composite material designs requires application of numerical methods. The finiteelement method usage is connected with surface approximation problems. Application of volumetric and laminar elements leads to systems with large sizes and a great amount of computation. The objective of…
Subject of Study. The paper deals with preparation processes of ultradisperse, homogeneous powder Sr1-хNdхF2+х (х= 0.003-0.2), with use of ammonium fluoride as the fluorinating agent taken over 114-120 % from stoichiometry. Method. Nitrate of strontium, neodymium nitrate hexahydrate, with the content equal to 99. 99 %…