Materials Literature
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在对流 undercooled 的粒子生长的一个动态系统融化由拉紧流动的 biaxial 开车被建模。在粒子生长的接口进化的一个一致地有效的 asymptotic 解决方案借助于多重可变扩大方法被获得。方位角角度和极的角度的功能证明在拉紧的 biaxial 的粒子生长的接口形状流动的分析答案被拉紧流动的 biaxial 显著地使变形。在流动来在里面并且导致的表面附近处于更高本地的生长率拉紧流动结果的 biaxial 降低本地生长流动外面去的表面附近的率。由于处于本地生长率的差别，一个开始球形的粒子将在拉紧流动的 biaxial 演变为延长像桶的形状。
帮助血浆的燃烧(PAC ) 上的详细研究 premixed 丙烷 / 空气混合的特征被介绍。PAC 与一个多信道的分光计电子上，以及光学地被测量。特征被稳定的燃烧温度和燃烧稳定性限制表明，并且结果与常规燃烧(CC ) 相比。稳定的燃烧温度大小证明进燃烧系统的 PAC 的介绍能增加稳定的燃烧温度，并且增长随分泌物电压的增加是更著名的。而且，当血浆也被使用进燃烧过程和燃烧稳定性限制的扩大的分泌物电压结果的增加时，燃烧稳定性的富有、弱的限制两个都被扩大。温度头和排放光谱的大小说明运动改进在血浆由反应种类引起了，这是为电流的主要改进小径燃烧系统。
Tensile strength isone ofthekey factorsof concrete material that need be accurately defined in analysis of concrete structures subjected to high-speed impact loads. Dynamic tensile strength of concrete material is usually obtained by conducting laboratory tests such as direct tensile test, Brazilian splitting test and…
By means of optical microscope(OM), X-ray diffraction(XRD), scanning electron microscopy(SEM)and transmission electron microscopy(TEM) analyses, the microstructures of as-cast and heat-treated Mg–4Zn–1Y(wt%) alloy containing quasi-crystal phase were studied.The microstructure of the as-cast alloy consists of a-Mg soli…
The cellulose reactivity is a key param- eter in the viscose rayon production process. To increase the reactivity of hardwood kraft-based dissolving pulp, a combined mechanical refining and enzymatic treatment was applied based on the hypothesis that a mechanical pretreatment can enhance the subsequent enzymatic treat…
Shock wave lithotripsy (SWL) revolutionized the treatment of kidney stones when first introduced three decades ago. Instead of open stone surgery, ultrasonic shock waves could be applied from outside the body to fragment stones in-situ, offering a non-invasive approach to stone therapy. Although still widely utilized…
Bio-ceramsite 技术是在喝水的预告的处理的最有效的技术之一。在这个工作， bio-ceramsite 被 Citrobacter freundii 制作(C。freundii ) ceramsite 上的固定。当前的学习的调查结果建议 bio-ceramites 为 Cd (II ) 和 Pb (II ) 和移动效率显示出 biosorption 能力因为 Pb (II ) 比 Cd (II ) 低。吸附机制能被归因于静电的吸引力和共有原子价债券。房间的形态学由于 peptidoglycan 和 lipopolysaccharide 的集会的分离在 Cd (II ) 和 Pb (II ) 的吸附以后变化了。荧光极化在膜…
In this paper, the debonding of a single fiber-matrix system of carbon fiber reinforced composite （12FRP） AS4/Epson 828 material is studied using Cohesive Zone Model （CZM）. The effect of parameters namely, maximum tangential contact stress, tangential slip distance and artificial damping coefficient on the debonding l…
Drill pipe is a critical and vulnerable component in oil gas industry. A novel feed-through alternating current field measurement(ACFM) is proposed to achieve in-service detection for axial cracks on the surface of drill pipe. The finite element model is built by ANSYS software for analyzing the induced electromagneti…
SiCx thin films with silicon quantum dots(QDs) were prepared by plasma enhanced chemical vapor deposition(PECVD) and thermal annealing. Transmission electron microscopy(TEM) observation shows that a large number of silicon QDs growing in Si Cx films. Memory structure with double barrier which consist of Si Cx thin fil…
Silicon nanowires （SiNWs） have been widely studied as light harvesting antennas in photocatalysts due to their ability to absorb broad-spectrum solar radiation, but they are typically limited by poor photoelectrochemical stability. Here, we report the synthesis of reduced graphene oxide-SiNW （rGO-SiNW） heterostructure…
我们基于一个维的多孔的硅(PS ) 建议一个紧缩的双乐队的通带过滤器(BPF ) 由电气化学的蚀刻的 photonic 水晶。由在多孔的硅 microcavity (PSM ) 的中心插入高、低的反射索引层的三个时期，二座突然地反响的山峰在回声波长的双方上出现在高反射率站乐队。通过模拟和实验，二座回声山峰和回声波长的物理机制也被学习。回声波长能仅仅由调整每 PS 层，不同回声波长在有在二座锋利的回声山峰之间的不同宽度的有效光厚度(传输结束字符) 被调节，这被发现。而且，分析显示氧化让蓝移动为低波长比那为高波长变得更大。如此的制作 BPF 基于 PS dual-microcavity 是容易的被制作并且低花费，它有益于综合光设备的申…
The inlet deflector rollers of a recoiling line are sprayed rollers. Short scratch lines have been found on the surface of steel sheets during commissioning. By adjusting the control parameters of the line and investigating the manufacturing process of inlet deflector rollers,the root cause of the scratches was found.…
Unsaturated acid esters of polyethylene glycol (PEG) are important monomers for the preparation of polymers. In addition, multifunctional polymers can be synthesized by the graft copolymerization of unsaturated acid esters of PEG with other monomers. The research development of the condensation reaction of PEG with co…
GdBO33∶ Pr3+ and GdBO3∶ Pr+ ,Yb3+ samples were prepared by solid state reaction at high temperature. XRD patterns,excitation spectra and emission spectra in the Vis-NIR range of the obtained samples were studied in detail at room temperature. The emission of 2F5/2→2F7/2( 980 nm)of Yb3+ was observed under 446 nm excita…
For photovoltaic applications,low-cost SiNx-coated metallurgical grade silicon（MG-Si） wafers were used as substrates for polycrystalline silicon（poly-Si） thick films deposition at temperatures ranging from 640 to880 ℃ by thermal chemical vapor deposition.X-ray diffraction and Raman results indicated that high-quality…
In order to evaluate thoron exposure in indoor environments, field measurements of both concentration and its size distribution were carried out in three typical rural residential houses in China, and exposure dose was evaluated using dosimetric method. Results show that the thoron progeny size distributions of rural…
-induced 结晶化以后的聚合(SSP ) 融化 transesterification 反应。融化 BPAPC 的行为和 SSP 上的结晶化条件的效果与微分扫描热量测定(DSC ) 被调查，厄布洛德粘性方法和胶化浸透层析(GPC ) 。使结晶的 prepolymers 的 SSP 的反应动力学为各种各样的反应时期作为反应温度的功能被学习。作为结果， BPAPC 粒子(2 公里) 的分子的重量从 1.9 瀠慨敳琠? 潦浲琠敨挠湯畤瑣癩?慰桴慷 y 增加了的粘性一般水准
An ultra-thin and broadband absorber which consists of periodic rings with gaps is proposed in this paper. The periodic rings are printed on the middle metallic layers in a four-layer substrate of total thickness is only 3.4 mm. Simulation results, which are gotten by using finite element method(FEM) and finite-differ…
Ti O2 manifested as nucleating agent was introduced in Ge-Sn-Se ternary chalcogenide glass by heat-melt method. Then the samples were heat-treated for different time. The experiment results indicated that heat treatment process can lead to the precipitation of Ge Se2 monoclinic crystals and Sn Se2 hexagonal crystals i…