Materials Literature
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Dans les pays à climat froid comme le Canada, la Norvège, la Russie, la Finlande, les États-Unis, la Chine et le Japon, l'accumulation de glace sur les équipements des réseaux électriques peut causer de sérieux problèmes résultant en des pannes d'électricité avec des conséquences socioéconomiques parfois désastreuses.…
MnSi1.70+x(x=0, 0.05, 0.1, 0.15) compounds have been prepared by induction melting-annealing procedure combined with spark plasma sintering method. The phase composition and the thermoelectric properties of higher manganese silicide (HMS) with different Si contents are investigated. The results indicate that the sampl…
Based on the electromagnetic resonant characteristic of the metallic dendritic cells, we present a metamaterial absorber (MA) composed of periodic array of double dendritic cells. The unit cell of the absorber is composed of two metallic elements on the substrate, a two-level dendritic cell and a three-level dendritic…
In this paper chromium to 1,00% and copper to 1,50% influence at constant molybdenum content of about 1,50% on the nodular cast ironwith carbides microstructure has been presented. It was found, that as a result of synergic addition of above-mentioned elements there isthe possibility obtaining an ausferrite in nodular…
The present paper reviews the literature on recent ethno medicinal uses of every plant part of Calotropis procera (1968-2009) and its medicinal properties used for the treatment of various ailments as in the case of many types of fevers, rheumatism, indigestion, cough, cold, eczema, asthma, elephantiasis, nausea, vomi…
Recent experiments involving near-contact underwater explosions on air-backed plates suggest the following failure mode categories: (1) holing and petaling, (2) complete or partial edge tearing due to shock only, (3) complete or partial edge tearing due to shock and bubble collapse, and (4) large deformation without r…
铝二硫化物 nanoflakes 被一个简单热水的过程在相对低的温度作为反应物用钠 molybdate 和 thiourea 综合。X 光检查衍射(XRD ) 和传播电子显微镜学(TEM ) 显示样品在 510 nm 附近与平均厚度有 2H-MoS2 的结构和 nanoflakes 的形态学。当他们为锂离子电池被用作阳极时，电气化学的性质的结果显示 MoS2 粒子的形态学和尺寸在他们的能力上有效果。同样准备的 MoS2 样品有高可逆的分泌物能力直到 994.6 mAreaction 温度，通风率和激动人心的率。ATAD 系统的反应温度能在等温的结晶化上从 25 绅士(TBC8-eb ) 的周围的温度被提起(L 乳的酸)(PLLA…
与不同再热的温度， thixoformed A356 合金的 Pitting 行为被评估。线性打扫 voltammetric 测试被用来在 3.5% NaCl 答案学习 thixoformed， rheocast 和严肃演员组 A356 合金的 pitting 行为。一个模拟方法也被使用以便识别在本地流电的夫妇之间的本地流电的腐蚀水流密度。结果获得了到 thixoformed 样品的 pitting 腐蚀的电阻在 600 熔 ? 熔形成了的表演吗？？
有多空的核心(MSMMC ) 的 Mesoporous 硅石 microspheres 被一种 O1/W/O2 双乳剂技术准备。当 tetraethyl orthosilicate ( TEOS )是在有 P123 的 O1/W/O2 双乳剂的 hydrolyzed 时(有一个公式的 triblock 共聚物惊讶( CH2CH2O ) 20 ( CH2CH ( CH3 ) O ) 70 ( CH2CH2O ) 20H )溶解在水的阶段，内部油微滴将为空空核心用作模板，为在壳的 mesopores 的模板，和水的阶段充当的 P123 功能限制空间为水解作用进程微反应堆，因此与可控制的尺寸和空核心形成 MSMMC 。在由一个高温度的老…
In the wake of previous studies on the rattling-and-jumping diffusion in smectic liquid crystal phases of colloidal rods, we analyze here for the first time the heterogeneous dynamics in columnar phases. More specifically, we perform computer simulations to investigate the relaxation dynamics of a binary mixture of pe…
In the electrospining process a web of nanofibres is formed on various surfaces, the web usually consisting of nanofibres of different diameters. There is no one opinion about the reasons for such phenomena as the distribution of the nanofibre diameter is also very sophisticated. The goal of this article is to analyse…
The effect various biologically compatible low molecular weight plasticizers (containing ester groups and hydroxyl groups) on stress-strain properties (modulus of elasticity, tensile strength, ultimate elongation, etc.) and the biodegradability (in phosphate buffer solution and in the soil) of the biodegradable alipha…
In the present study silver nanoparticles were obtained using the ability of chitosan to form chelate compounds with metal ions and taking advantage of its reducing properties. The reduction process was conducted at the temperature 60°C or applying γ radiation from 60Co cobalt source. A preliminary characteristic whic…
International audience
In order to rationally determine the parameters in the Johnson-Holmquist(JH) concrete constitutive model,the relationship of cohesive strength with the Mohr-Coulomb criterion was founded,and a method through triaxial test was presented to acquire the failure surface parameters.The failure strength of concrete was obta…
SF6 decomposition method demonstrates a broader application potential in on-line fault detection and diagnosis thanks to its anti-interference against electromagnetic noises and vibration as well as its applicability for the diagnosis of overheating fault. The present study attempts to fill the existing research gap b…
Al–Zn codeposition on an AZ91D magnesium alloy from a Lewis acidic aluminum chloride-1-ethyl-3-methykimidazolium chloride ( -EMIC) ionic liquid containing various contents of has been successfully established. The experimental results showed that the amount of Zn in the deposit increased with increasing concentration…
Aluminum alloys have high potential as light structural materials. In this work light and electron microscopy and X-ray diffraction were used to study the structure and phase composition of deformed bulk samples from the Al-7075 and the Al-3003 alloys. Severe plastic deformation was carried out by the dynamic channel…
This article investigates the physicochemical properties of vanadium pentoxide prepared by anodic electrodeposition onto two nanoporous alumina templates having pore sizes of 50 and 200 nm. formed inside the templates was an amorphous structure with flakelike (50 nm) and round (200 nm) shapes. The capacitance of was m…
The paper deals with a novel method of preparing silver nanoparticles suspended in aqueous solution using cellulose fibres, which does not involve any chemical surfactants. The synthesised nanoparticles had crystalline structure and substantially smaller size, about 2-8 nm during the first few days after the synthesis…