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。
Corrosion of five steel bodies of passenger cars of models 1985, 1990, 1995, 2000, & 2005 that are used in Mosul city were studied under atmospheric and aqueous during 2009-2010. Atmospheric corrosion rates were below 1.7 mpy, which is classified as low corrosion, this is due to dry weather conditions during the study…
The goal of the present study was the development of composition analysis method for vision pigments chromophore groups of different animals with the use of high performance liquid chromatography as well as the development of synthetic method for all-E-3,4-didehydroretinal – one of standard compounds. The all-E-3,4- d…
O objetivo deste trabalho e o estudo teorico das propriedades mecânicas de uma monocamada de grafeno, utilizando como ferramenta a teoria do funcional da densidade (DFT). Submetemos a folha de grafeno a tensoes uniaxiais nas direcoes armchair e zigzag. Analisamos o comportamento da curva de tensao versus deformacao no…
A evolucao da microestrutura de um aco inoxidavel bifasico com estrutura martensitico-ferritica (AIMF) foi estudada durante o tratamento termico de revenimento atraves de medicoes in situ das fracoes de fase por difracao de raios X. Para a liga de AIMF o revenimento e realizado para ajuste das propriedades do material…
The contribution describes preparation of the so-called green in which polycaprolactone serves as matrix and the reinforcement consists of nano- and micro-dust of selected exotic woods, i.e., teak, garapa and massaranduba. The composites were processed into nanofibers (by electrostatic spinning technology Nanospider)…
Os amidos nativos apresentam caracteristicas limitadas para uso industrial, precisando muitas vezes ser modificados ou tratados. Entretanto, a utilizacao de produtos quimicos esta cada vez sendo menos preferida, para preservacao da saude humana e meio ambiente. Portanto, a mistura de amidos e o tratamento fisico com u…
Using extensive Monte Carlo (MC) simulations of colloids immersed in a nematic liquid crystal we compute an effective interaction potential via the local nematic director field and its associated order parameter. The effective potential consists of a local Landau-de Gennes (LdG) and a Frank elastic contribution. Molec…
Layered Double Hydroxide (LDH) belongs to a class of ceramic materials that present structure formed by stacked layers of double metals hydroxides and an anion into the lamellar space. They present a large variety of applications possibilities, as industrial, environment, medicine, among others. Non-calcined Mg-Al lay…
In this paper are reported the preparation, characterization and investigation of the photoluminescence properties of new hybrid materials containing EDTA lanthanide ions ( Eu3+ , Gd3+ and Tb3+ ) complexes covalently bonded on the chitosan surfaces matrices of low (QPB) and medium (QPM) molecular weights, precursor an…
Abstract : The goal of the project was to investigate the fundamental factors that control the elevated temperature mechanical and thermal properties of ultra-high temperature diboride ceramics that are relevant to future Air Force needs related to hypersonic aviation and scramjet propulsion. The three main areas of r…
Gliclazide (GZ) is practically insoluble in water and its bioavailability is limited by dissolution rate. The aim of the present study was to enhance the dissolution rate and bioavailability of GZ by complexation with hydroxypropyl (HP)-β-cyclodextrin (CD) applying three different methods; physical mixing, kneading te…
The use of chemotherapeutic drugs in cancer therapy is often limited by problems with administration such as insolubility, inefficient biodistribution, lack of selectivelty, and inability of the drug to cross cellular barriers. To overcome these limitations, various types of drug delivery systems have been explored, a…
\n Uma das alternativas possíveis para substituir os materiais sintéticos na área de embalagem de alimentos é o desenvolvimento de filmes baseados em biopolímeros. Vários estudos têm demostrado o melhoramento nas propriedades de filmes baseados em biopolímeros, devido à utilização de nanopartículas como reforço. No en…
Based on the T-S fuzzy neural network, the types of corona discharge are recognized. In this paperthree types of corona discharge test model are designed, then characteristic signals of corona discharge, the maximum, minimum and mean value and including the fractal dimension, are extracted, and then used as the input…
Using extensive Monte Carlo (MC) simulations of colloids immersed in a nematic liquid crystal we compute an effective interaction potential via the local nematic director field and its associated order parameter. The effective potential consists of a local Landau-de Gennes (LdG) and a Frank elastic contribution. Molec…
Abstract Not Provided
Since energetic material fragmentation governs the surface area available for burning and potential escalation to violent reaction modes (e.g., deflagration-to-detonation transition and XDT modes), it is critical that hazard response models accurately capture impact damage response. The objective of this work is to a…
본 연구에서는 열 분해법으로 크기가 각각 D=4.67 nm, 5.64 nm 및 6.34 nm인 균일한 산화철 나노입자를 제조하여 강자성 공명 신호를 측정하였다. 측정된 강자성 공명 신호는 입자의 부피가 로그 정규 확률 분포를 갖는 초상자성 나노입자에 대하여 계산한 결과와 비교 분석하였다. 강자성 공명 신호의 선폭은 나노입자의 크기가 증가함에 따라 넓어졌으며, tanh( $V^2$ )에 비례하는 특성을 보였다. 이러한 나노입자의 크기에 따른 선폭 증가는 나노입자들 표면에 분포하는 표면 스핀과 결정 이방성 특성을 갖는 내부 스핀들에 의한 두 가지 강자성 공명 신호의 중…
N-Chloro-N-(benzoyloxy)benzamide has been synthesized by chlorination of N-benzoyloxybenzamide with tert-butylhypochlorite. The structure of N-chloro-N-(benzoyloxy)benzamide has been соnfirmed by its NMR 1H and mass-spectra. Upon storage at −26 °C, the labile N-chloro-N-(benzoyloxy)benzamide quickly converts into N-(b…
We give relatively simple sufficient conditions on a Fourier multiplier, so that it maps functions with the H$\ddot{o}$lder property with respect to a part of the variables to functions with the H$o$lder property with respect to all variables. With the using of these sufficient conditions we prove the solvability in H…