Materials Literature
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The increasing energy consumption and environmental concerns due to burning fossil fuel are key drivers for the development of effective energy storage systems based on innovative materials.Among these materials,graphene has emerged as one of the most promising due to its chemical,electrical,and mechanical properties.…
The stress state around circular openings,such as boreholes,shafts,and tunnels,is usually needed to be evaluated.Solutions for stresses,strains and ultimate bearing capacities of pressurized hollow cylinder are common cases.Stress analytical method for plane problem of a double-layered thick-walled cylinder subjected…
C/CSiCHfC composites 作为先锋用器官的包含铪的聚合物和 polycarbosilane 的一个混合答案经由先锋渗入和热分解被制作。微观结构和 composites 的阶段被扫描电子显微镜学和 X 光检查衍射分析。composites 的脱离抵抗不到 3,000 被评估 ? 牡敫獲眠牥 ? ?捣獥晳汵椠 ? 敤整瑣湩 ? 潰祬潭灲楨浳椠 ?? 樠瑡浡湡楳朠湥瑯灹獥 ? 湡 ? 桴 ? 卉剓洠牡敫 ? 瘠獩椭攠晦 ' 太 B? 潆牵愠慮祬敳 ? 慭獳洭癯浥湥 ? 諟Ｄ禎潿洜睌绐摀?潤畣敭瑮摥猠潬数映楡畬敲 s 牥氠祡牥瀠慨敳 ? 吠敨瀠楲慭楲祬猠牴歩? 汳灩映 ' 椅蹧炭鷽螙擢撱唱 e 慭汬琠牨獵? 潣灭湯…
Water pollution has become serious environmental problem nowadays. Advanced oxidation processes(AOP) have been widely applied in water treatment.However, traditional Fenton reaction based on Fe2﹢-H2O2 system has obvious drawbacks, which limit its applications In this study, magnetic Fe3O4core-C shell nanoparticles(Fe3…
Methotrexatum/zinc-aluminum layered double hydroxides(MTX/Zn-Al-LDHs) compounds were prepared by the improved coprecipitation method in the alcohol-aqueous mixed solvent. The influence of molar ratios of Zn2+/Al3+/MTX(R value) on the structure and morphologies of the compounds was systematically studied. The MTX/LDHs…
Hot ductility of Ti-V bearing steel was studied by theoretical calculation and thermal simulation experiment.Meanwhile,microsegregation and precipitates were analyzed.The results showed that elements S,Ti and O were enriched at the grain boundaries,while the hot ductility was deteriorated by inclusions of(Fe,Mn,Si,Al)…
Diamond-like carbon(DLC) and Nitrogen-doped diamond-like carbon(N-DLC) films were synthesized by glow discharge plasma enhanced chemical vapor deposition(PECVD) using a hybrid ion beam system. The microstructure and surface topography of films were characterized by Raman spectroscopy, X-ray photoemission spectroscopy…
摘要： 采用电子束熔化焊、电子束熔-钎焊和电子束阻隔熔化焊方法来实现钒合金与不锈钢异种金属之间的连接。研究发现钒合金与不锈钢连接界面处产生的脆性金属间化合物是影响接头性能的关键因素。采用电子束直接熔化焊时，接头界面会产生贯穿性裂纹导致焊缝直接断裂。电子束熔-钎焊中利用熔化的不锈钢润湿未熔化的钒合金母材，有效控制了液-固界面反应，实现冶金结合。在钒合金与反应区形成厚度20 m的扩散层，在接头中未发现有金属间化合物σ相的产生。电子束熔钎焊接头的抗拉强度达到200 MPa。在电子束阻隔熔化焊中采用Ag作为中间层添加元素，很好地抑制了V/Fe界面的金属间化合物的产生，显著提高了接头性能，接头抗拉强度超过400 MPa。电子束熔-钎焊和阻…
The effect of air-lift device on the nitrogen removal efficiency of ANAMMOX reactor was studied by increasing the substrate concentration to improve nitrogen load rate and inoculate ANAMMOX sludge. The results showed that the effluent recirculation was achieved by using nitrogen gas produced from the ANAMMOX process a…
从我在不同温度在张力的变丑期间以不同条件使结晶在 syndiotactic 聚丙烯形成 III 的形式的阶段转变被在 situ 同步加速器使用宽角度 X 光检查衍射技术调查。在所有情况中，这阶段转变的出现被观察。这转变的发作紧张被发现是结晶化温度和绘画温度依赖者决定的水晶的厚度。在这阶段转变上拉温度的效果被变化与温度在机械性质理解。而且，阶段转变的水晶的厚度相关性表明这形成我到从 III，阶段转变沿着没经历导致的应力融化的拉长的方向和再结晶与他们的正常在那些 lamellae 首先发生。
This study aimed to develop novel galactosy- lated cholesterol modified-glycol chitosan (Gal-CHGC) micelles for targeting delivery of doxorubicin (DOX) in live cancer cells. Three kinds of Gal-CHGC conjugates were synthesized and characterized. The mean particle size and critical aggregation concentration of these pol…
为基于表面的干扰，电浆子挥动的 248 nm 的一种新影印石版术技术被使用计算机模拟建议并且示威。基本结构由表面电浆子电磁声子(SPP ) 组成干扰面具和多层的电影 superlens。用迅速凋落的波浪上的 superlens 的扩大效果，近的地 SPP 干扰模式被想象到远地，然后在相片上被暴露抵抗(PR ) 。模拟基于有限差别时间结果当从 248 nm 来源的 p 极化光是时，在干扰模式的半最大值(FWHM ) 的完整的宽度是大约 19 nm 的领域(FDTD ) 方法表演垂直地事件到结构。同时，焦点的深度为积极 PR 是为否定 PR 和 60 nm 的 150 nm，它在平常的 SPP 影印石版术比那大得多。
Natural bio-substances are ideal template substrates for the fabrication of functional artificial nanostructured materials due to their unique naturally produced structures and properties that prior to man-made ones. As being one of the most abundant natural polymers, natural cellulose substances possess unique struct…
这个工作介绍 NiS/graphene/carbon nanotube (NiS/GNS/CNT ) 是的 composites 为在海闪光的 supercapacitor 应用程序的电极材料信号系统。NiS nanosheets 仔细在传导性的 GNS-CNT 网络上被抛锚。作为结果， NiS/GNS/CNT 电极显示出 2 377 F 的一个高特定的电容 ? 獵湩 ? 剘? 湡 ? 桴 ? 楰瑴湩 ? 湯愠畬業楮浵愠 ?? 敲?瑬漠 ? 慧癬湡捩挠牯潲楳湯眠獡栠杩汨杩?摥椠 ? 整浲 ? 景瀠瑩搠灥桴 ? 楳敺愠摮搠湥楳祴漠 ? 楰? 甠楳杮愠栠杩 ?敲潳畬楴湯洠捩潲 ' 盏芿
Ceria (CeO2) has been used in a number of catalytic processes, either as a support or promoter. For a better understanding of the factors that control the reac- tivity of ceria, we have used well-ordered CeO2(111) films and ceria nanoparticles supported on an ordered SiO2 film, as model catalysts. The systems were exa…
Recently,the liquid-liquid interfacial synthesis is emerging as an efficient strategy for the preparation of nanomaterials,which exhibits several outstanding characteristics: mild,inexpensive,convenient and template-free. Owing to the unusual physicochemical properties,the liquid-liquid interface possesses unique adva…
We regard the nanocrystalline silicon films as an ideal one-dimensional quantum limiting surface structure,and study the band structure and density of states of the different thickness silicon( 111) quantum surface by the first-principles calculation. As the change of the thickness of the quantum surface well passivat…
Whey protein,one of the major components of milk proteins,is an essentially by-product of cheese making,which has not only excellent nutritional properties,but also unique colloidal physicochemical properties.This paper reviews the technology progress of using whey protein colloid properties in fields of the micro-cap…
A series of orange-red phosphors Ca3Y2-2x(Si3O9)2∶2xSm3+were synthesized by conventional solid-state reaction,and their photoluminescence properties were investigated.The X-ray diffraction(XRD)pattern shows that Ca3Y2(Si3O9)2∶Sm3+crystals are the pure phase.The excitation spectra contain the characteristic excitation…
The ternary Zn1-xCdx O( x = 0, 0.2) thin films with wurtzite structure and highly (002)-preferred orien- tations were deposited on glass substrates by the direct current (dc) reactive magnetron sputtering method. The X-ray diffraction, X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM), opt…