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。
Single crystals of the mixed valence compound Pb₃Ni₁.₅Mn₅.₅O₁₅ were successfully grown. Polarized Raman spectroscopy revealed that they belong to the point group D(3d), in accordance with single-crystal x-ray diffraction data which were refined within the trigonal space group P3c1 (No. 165), with lattice parameters a…
Liquid−liquid equilibrium (LLE) results for ternary mixtures of {methanol (1) + methylbenzene (2) + decane (3)} at different temperatures from (298.15 to 313.15) K are reported. The compositions of the liquid phases at equilibrium were determined by gas−liquid chromatography. The data were correlated with the NRTL and…
Reaction of phenylmalonic acid dihydrazide with 2,4-pentanedione proceeded through a novel rearrangement to give 5,7-dimethyl-1-oxo-2-phenyl-1H-pyrazolo[1,2-α]pyrazol-4-ium-3-olate (DPO). This peculiar structure had a positive charge (cation) localized on the pyrazolium ring and a negative charge localized on the othe…
In recent years, the area of polymer nanocomposites based on organically modified clay has attracted much interest in academia and industry because of their peculiar and fascinating properties. Nanomaterials are presently considered to be high potential filler material, with high aspect ratio and extremely large surfa…
Abstract Summary: In this work the analysis of an accident in transport of dangerous goods is proposed. The objective of this study is to contribute to the determination of the causes that brought about the self‐polymerization of commercial divinylbenzene (DVB 63%) contained in an iso‐container, in order to prevent th…
The present work studies a nondestructive evaluation of the degradation of modified 9Cr-1Mo steel using a magnetic method based on the existence of the peaks of reversible permeability (RP) in the differential magnetization around the coercive force. The apparatus is based on detection of the voltage induced in a coil…
A novel Co/InP magnetic semiconductor nanocomposite was fabricated by electrodeposition magnetic Co nanoparticles into n-type porous InP templates in ethanol solution of cobalt chloride. The content or particle size of Co particles embedded in porous InP increased with increasing deposition time. Co particles had unif…
Sub-micrometer La 0.8 Ca 0.2 CrO 3 powders for ceramic interconnects of solid oxide fuel cells were synthesized by the aqueous combustion process. The materials were prepared from the precursor solutions with different glycine (fuel)-to-nitrate (oxidant) ratios (). Single-phase La 0.8 Ca 0.2 CrO 3 powders with a perov…
In order to include heat stress and comfort as design parameters in the development of advanced protective ensembles for firefighters and emergency responders, it is necessary to be able to measure and evaluate these factors. This chapter will focus on describing the laboratory test methods that are currently availabl…
The cleavage action of Ser-His on a series of single-stranded oligonucleotides was investigated by Fourier-transform ion cyclotron resonance mass spectrometry with electrospray ionization. It was found that polyadenine was selectively hydrolyzed at the terminal phosphodiester bond.
Abstract Summary: Innovative reactor internals consisting of a number of vertically stacked perforated plates have been proposed to increase mass transfer rates of volatiles from highly viscous polymer melts. A mathematical model comprising mass and enthalpy balances for the polycondensation of polyamide 6 has been us…
Abstract Summary: Diffusion of penetrants (e.g., monomers) in polyolefins is important not only in their manufacturing and down‐stream processing, but also in packaging and separation applications. We propose a general methodology linking the semi‐crystalline structure of polyolefins to their application properties. T…
Nominally undoped AlGaN / GaN heterostructure samples were grown on c-plane sapphire substrates by low-pressure metal-organic chemical vapor deposition, and their material properties, such as crystal quality, roughness of heterointerface, thickness and Al mole fraction of AlGaN barrier layer, were identified by high r…
The oligoester diols were synthesized via ring-opening polymerization of ϵ-caprolactone in the presence of creatinine and diethylene glycol or 1,4-butanediol as initiator systems. Thus, obtained oligomers were successfully used in the synthesis of segmented polyurethanes. The oligoester diols (poly(ϵ-caprolactone) and…
The gold nanoparticle solutions are well known as an extremely sensitive biomedical analytical tool due to the strong dependence of their absorption in the visible range on the environment. In this work, the colloidal nano golds were synthesized from metal precursor chloroauric acid (HAuCl4) using trisodium citrate de…
Abstract In this research work the early fatigue damage characteristics up to 50% of life has been investigated at near‐endurance stress amplitude in a medium carbon steel with hardened & tempered and normalized conditions by application of post fatigue tensile loading. During fatigue loading microvoids were generated…
Bacterial cellulose has proven to be a remarkably versatile biomaterial and can be used in wide variety of applied scientific endeavors, such as paper products, electronics, acoustics, and biomedical devices. In fact, biomedical devices recently have gained a significant amount of attention because of an increased int…
Electric field (E field) distributions of the silver rod-film nanostructures are calculated by the finite difference time domain method and compared with those of the individual nanorods. For the rod-film nanostructure, the incident waves are reflected back by the base layer and the superposition of the E fields of th…
본 연구에서는 항암제 전달체로 응용하기 위하여 천연고분자인 히알루론산(hyaluronic acid, HA)에 소수성기 도입을 위하여 담즙산(bile acid) 중 하나인 디옥시콜산(deoxycholic acid)(DA)을 개질하여 양친성 공중합체를 제조하였고, 이를 항암제 전달체로 응용하고자 하였다. 디옥시콜산이 결합된 히알루론산(HADA)의 물리화학적 특성은 1H NMR, FTIR, spectrophotometer와 TEM을 이용하여 측정하였다. 디옥시콜산이 결합된 히알루론산에 항암제(파클리탁셀)를 투석방법을 통하여 봉입시켰고, in vitro에서 KB 세포에 대…
Abstract Ensuring power quality in power systems demands fast calculation of harmonics. In this paper, a recursive algebraic approach to the calculation of current transformer (CT)‐derived current signal frequency and harmonics is proposed that is based on a fast but accurate recursive algorithm whereby in any stage o…