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。
The present paper reports the Photoluminescence (PL) of the Sr2CeO4 phosphor, singly doped with Erbium rare-earth ion with different concentrations (0.01, 0.1, 0.2, 0.5 and 1%).The phosphor samples were synthesized using the standard solid state reaction technique. The effect of Er dopant on the structural, morphologi…
Usage of combustion processes for production of target products is less common than the application of catalytic processes. However, there are known examples of production of carbon black, HCl, TiO2 etc. Some research work was done at the Institute of Combustion Problems (Almaty, Kazakhstan) consider the synthesis in…
The work presented here focuses on the investigations of metallo-porphyrins and their gasochromic behavior. Gasochromic materials change their color while they are exposed to a certain gas. So they offer the possibility to develop very selective chemical gas sensors. In the focus of this work is the metallo-porphyrin…
The paper presents a short overview of selected problems related to the numerical analysis of localized deformations. After defining the localization phenomenon and the class of gradient models, two simulation examples are shown. They are applications of the plasticity theory with a Laplacian of the hardening paramete…
Carbon nanotubes (CNTs) have been grown on commercially available silicon carbide (SiC) fabric by the catalytic chemical vapour deposition (CCVD) technique. These CNT coated SiC fabrics were used to develop Silicon Carbide–Carbon Nanotube–Silicon oxy Carbide matrix composites (SiC/CNTs/SiOC) by sol gel technique. Sili…
90Sr having moderate half life (t1/2 = 30 yr) is of major concern for radioactive waste management. Metal antimonate compounds have been employed for the removal of 90Sr from low level liquid waste stream (LLW). Antimonate compounds of tin, manganese, and zirconium were synthesized and their composite materials were p…
Magnetic ordering and spin dynamics of $5f$ electrons in ferromagnetic $\ensuremath{\beta}$-UB${}_{2}$C with ${T}_{\mathrm{C}}=74.5$ K have been investigated by muon spin rotation and relaxation ($\ensuremath{\mu}$SR). The experimental data indicate a slowing down of the spin fluctuations of the U moments on approachi…
The inhibition effect of cetyl trimethyl ammonium bromide (CTAB) on the corrosion of mild steel in 1.0 mol L−1 hydrochloric acid (HCl) has been studied at different temperatures (25–60°C) by weight loss and potentiodynamic polarization methods. The results reveal that CTAB behaves as an effective inhibitor in 1.0 mol…
Silicon Carbide (SiC) was synthesized by carbothermal reduction of silica precursor and carbon precursor. The silica precursor was obtained from tetraethoxysilane. Sucrose was used as carbon source. Tetraethoxysilane (TEOS) was hydrolyzed in acidic water (pH = 2). The molar ratio of TEOS-H2O-EtOH was taken as 1:8:2 in…
Abstract Novel 3D metal‐oxide‐metal capacitors for 60 GHz applications in a CMOS 45 nm process are proposed. Relatively high capacitances density of 3 fF/μm2 and quality factors from 3.2 to 10.2 at 60 GHz are measured. The study is validated up to 110 GHz for different capacitance values. © 2011 Wiley Periodicals, Inc…
We demonstrate reproducible formation of mesoporous germanium layers suitable for solar energy applications by electrochemical etching in highly concentrated electrolytes. For long anodization times or thick layer formation a porosity gradient is observed leading eventually to high porosity regions and cavity formatio…
The author uses computer simulations to measure the spectra of thermal line edge roughness (LER) and line width roughness (LWR) in a two-dimensional, symmetric, lamellar diblock copolymer melt over a range of segregation strengths. These measurements demonstrate that increased segregation strength results in a signifi…
Pineapple shell extract (PSE) and its ultrafiltered fractions were tested for enzymatic browning inhibition of fresh-cut banana slices and for banana polyphenol oxidase (PPO) inhibition. PSE and its permeate were effective in browning inhibition of banana slices stored at 5 °C. They also showed significantly higher in…
We study the crackling noise emerging during single crack propagation in a specimen under three-point bending conditions. Computer simulations are carried out in the framework of a discrete element model where the specimen is discretized in terms of convex polygons and cohesive elements are represented by beams. Compu…
Abstract This study describes preparation of poly (acrylic acid)‐grafted cotton fibers and release of antibiotic drug gentamicin sulfate from them under physiological conditions. Poly(acrylic acid) has been grafted onto cellulose backbone of cotton fibers via Ce(IV)‐initiated polymerization in aqueous medium. The cond…
We have investigated swift heavy ion-induced mixing in Ni/Teflon and Au/Teflon systems using 120 MeV Au ions. Our earlier studies showed that the Ni/Teflon system exhibits strong interface mixing, as determined by Rutherford backscattering spectrometry (RBS). In the present work, the Ni/Teflon system is further studie…
Alkyd acrylic hybrid emulsions can offer cost/performance advantages over common 1K coatings such as polyurethane dispersions (PUDs), acrylic emulsions and blends. Hybrid emulsions with different ratios of alkyd resin to acrylic monomers were synthesized. Emulsion with resin-to monomer ratio of 1:1 (wt/wt) with total…
Ewald's method yields internal electric fields in a polar material consisting of local and macroscopic components. The macroscopic component is a priori undefined. It depends on the boundary conditions imposed at the surface of the macroscopic medium. The boundary conditions ordinarily used in periodic electronic-stru…
The effects of temperature and time on the grain growth kinetics of selected steels have been experimentally determined. The steels examined are 1045, 4140, 4340, 8620, 9310 and 52100. Samples were heat treated at temperatures ranging from 850C to 1050C in increments of 50C and held for 30 minutes, 2, 4, and 9 hours.…
UNLABELLED: PKSIIIexplorer, a web server based on 'transductive Support Vector Machine' allows fast and reliable prediction of Type III polyketide synthase proteins. It provides a simple unique platform to identify the probability of a particular sequence, being a type III polyketide synthases or not with moderately h…