Materials Literature
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Hybrid CdS/P3HT photovoltaic devices using F-doped SnO2 (FTO)-coated ZnO nanorod arrays as electrodes were studied in this work. The crystalline FTO, made using low-cost spray pyrolysis deposition (SPD), displayed a nominally complete and uniform coating over the entire outer surface of the ZnO nanorods. The photovolt…
Piezoelectric single crystals of 0.69Pb(Mg1/3Nb2/3)O3–0.31PbTiO3 were grown by a top-seeded solution growth method that prevented phase segregation and promoted the (001)-growth. The morphotropic phase boundary (MPB) structure was confirmed by X-ray diffraction and the dielectric, piezo- and ferro-electric properties…
A theoretical study of the temperature dependence of dynamic effects in the rate limiting step of the reaction catalyzed by thymidylate synthase is presented in this paper. From hybrid Quantum Mechanics/Molecular Mechanics (QM/MM) optimizations of transition state structures within a fully flexible molecular model, fr…
Abstract In this work, the effect of Al ternary alloy addition on Ni–Ti alloys has been investigated. It has been seen that, with Al addition, martensite transformation temperatures decrease at different rates in Ti-rich and Ni-rich alloys. The paraequilibrium temperature, T 0 , and the chemical driving force for mart…
Complex metal oxides such as BaTiO3 are widely sought materials in the ceramic and electronic industries due to their piezoelectric, ferroelectric, and dielectric properties. The synthesis of BaTiO3 typically requires harsh reaction conditions such as high temperature and pressure that provide poor control over compos…
We analyze the local structure of two-dimensional packings of frictional disks numerically. We focus on the fractions xi of particles that are in contact with i neighbors, and systematically vary the confining pressure p and friction coefficient μ. We find that for all μ, the fractions xi exhibit power-law scaling wit…
An oligonucleotide modified with Ni-nitrilotriacetate (NTA) was successfully synthesized and used for the stoichiometric functionalization of QDs. This synthetic approach allowed for the facile preparation of DNA-QD conjugates with a defined DNA/QD ratio using well-known Ni-histidine coordination chemistry. A FRET bas…
This paper presents the results of a study on antimicrobial activity of polymer filter nonwovens produced by needle-punching or melt-blowing with an addition of disinfecting agents. The first part of the paper discusses how the biocidal activity of nonwovens is a function of the active agent added to the nonwovens, th…
Study on the nitration of phenyl-substituted porphyrins showed that protonation of the porphyrin macroring does not affect the relative reactivity of the meso- and β-positions and phenyl groups.
The methanol solvate crystalline phase (M) of benzene-1,2,4,5-tetracarboxylic acid transforms selectively to a hydrate phase (H) or a non-solvate phase (N) depending on the presence of atmospheric water vapour; knowledge of the crystal structures of M and N, determined here using single-crystal and powder X-ray diffra…
The red phosphor EuBaB 9 O 16 was prepared by the conventional solid-state reaction method.The site-selective excitation and emission spectra and the luminescence decay curves have been investigated by using a pulsed, tunable, narrowband dye laser in the 5 D 0 → 7 F 0 region in EuBaB 9 O 16 crystals at 10 and 300 K. N…
A wet chemical route was used to prepare the oxygen deficient codoped perovskite oxide . Analysis of X-ray powder diffraction data showed that the sample belongs to the cubic crystal system with space group . Dynamic thermogravimetric (TG) analysis confirmed complete filling of oxygen vacancies by protonic defects dur…
The failure of steel components in multistage flash (MSF) desalination or power plants as a result of the deposition of carryover heavy metals/oxides is a common problem and reported by many authors. The present investigation was undertaken to study the corrosion behavior of mild steel and AISI 304L SS in presence of…
椰子 nucifera L 的能力。水(CW ) 用化学技术作为为在 0.5 mol/L HCl 的铝的酸腐蚀的无毒的腐蚀禁止者被学习了。CW 作为腐蚀禁止者显示出重要抑制，与在禁止者的最高的集中的 93% 效率。禁止的行动在金属表面追随者兰米尔吸附等温线上被归因于禁止者分子的吸附。
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Abstract This paper describes the development of an experimental platform which analyzes and controls the vibration of a Shape Memory Alloy (SMA) actuated and piezo sensed flexible beam. The vibration is controlled using the interactive force of a pair of almost identical SMA wires connected in an antagonistic manner,…
Effect of hydrogen on tensile properties of ferritic-pearlitic carbon steels was investigated. Tensile tests were conducted in air at room temperature using virgin and 10%-30% pre-strained specimens of the following carbon steels: IF (0.002mass%C), S15C (0.17mass%C) and S45C (0.43mass%C). Volume fraction of pearlite o…
Stable silver nanoparticles were prepared by the chemical process; these particles are incorporated in cotton fabrics. These cotton fabrics with silver nanoparticles are sterile and can be useful in to prevent or to minimize infection with pathogenic bacteria such as Staphylococcus aureus and Escherichia coli . The an…
The present study was directed to explore the toxic effects of orally administered TiO2 in mature male albino rats . Eighteen mature male albino rats were classified into three equal groups. The first group was used as control and fed on TiO2 free ration (C), the second and the third groups (T1) and (T2) were fed on r…
Geothermal well logging and instrumentation applications require electronics capable of 300°C operation. SiC device technology enables the design and fabrication of analog circuits that can operate at these temperatures. However, to build functional circuits, an interconnection and packaging technology must be demonst…