Materials Literature
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几先进高张力钢(DP590， DP780， DP980， M1180，和 M1300 ) 的破裂形态学在单轴的紧张形成了，穿透被扫描处理技术的图象分析的电子显微镜，然后份量上观察。导致紧张的 fractographs 被明显的制服或 bimodal 尺寸酒窝统治，当时砍导致 fractographs 有光滑的表面和很少酒窝。更高的等级 DP 钢的破裂地区更光滑。至于 M1180 和 M1300，破裂地区由很小的酒窝和光滑的易碎的表面组成。M1300 的酒窝尺寸(~ 1.2 m ) 比 M1180 的小(~ 1.6 m ) 。而且在张力的破裂，在平均酒窝直径(d) 和张力的力量之间的量的关联() 能被 d = 代表 10,502.3…
Due to the unique optical,electronic,magnetic and catalytic properties,functional nanomaterials provide new opportunities for the rapid development in a variety of disciplines and show considerable promise in different fields.Specifically,constructions of the novel electrochemical interface using various nanomaterials…
1 Introduction There exist calcium and sulfate ions outside sodium chloride in solution mining for calcium sulfate brine.The calcium and sulfate ions not only affect the purity of the vacuum salt products,but also increase the scaling of vacuum evaporation tanks and brine reusing pipes.Additives have certain impacts o…
Objective:The anti-inflammatory effects of Ecklonia cava(EC)and its mechanism of action were examined in phorbol-12 myristate 13-acetate(30 nmol/L)and A23187(1μmol/L)(PMACI)stimulated human mast cell line-1 cells.Methods:Nitric oxide content,inducible nitric oxide synthase and cyclooxygenase-2 protein expression,pro-i…
Stimuli-responsive peptides are referred as smart peptides capable of self-assembling into supramolecular structures that are responsive to environment changes. Such kinds of smart peptides can selfassemble spontaneously,so they are also called self-assembling peptides. Based on their property,smart peptides can be us…
有赤裸的金属杂质的合成熔化石英眼镜被温度依赖者分析了电的阻抗光谱学。复杂电的阻抗并且规范的绝缘的模量重叠在熔化石英玻璃里暗示电介质和传导松驰的单个机制。而且，温度上的电导率的依赖可以归因于占优势的电的松驰到去除或在挂氧的 nonbridged 之间的长期的电子跳跃。
1 Introduction Magnesium salts are very important by-product of salt lake industry in West China.Nearly 200 million cubic meters of waste brine are released to the environment
Three dimensional porous scaffolds for tissue engineering were fabricated by freeze drying a blend suspension of cellulose-nanofibers(CNFs) with poly(vinyl alcohol)(PVA), while the Influences of the concentration of CNFs suspension, the mass ratio of CNFs to PVA, the relative molecular mass(mass average) of PVA and th…
TiO2 decorated with partially crystallized Pd nanoparticles（Pd/TiO2-P） was successfully prepared by atmospheric-pressure dielectric barrier discharge cold plasma. The XRD and XPS analyses proved that Pd ions were reduced to partially crystallized metallic Pd nanoparticles in Pd/TiO2-P. The XPS spectra also indicated t…
Nanocrystal 结合在过去的十年在 nanostructure 制造吸引了首要的注意。巨大的努力和进步在理解它的机制被做了，得益于传播电子显微镜学的发展。然而，许多机制仍然保持不清楚，特别为 nanocrystals 缺乏站在稳固的底层上的一永久偶极子时刻。这里，我们报导一在里面 electron-excitationenhanced 货车 der Waals 相互作用导致的非结晶的碳底层上的磅 nanocrystals 的 situ 结合由传播电子显微镜学和第一原则计算学习了。electron-beam-induced 刺激罐头显著地提高在磅 nanocrystals 之间的货车 der Waals 相互作用并且减少在磅…
With the characteristic size reducing as well as the power densities exponentially increasing, elevated chip temperatures are true limiters to the performance and reliability of integrated circuits. To address these thermal issues, it is essential to use a set of on-chip thermal sensors to monitor temperatures during…
This paper reviews the recent developments metal-phase change material composites with a focus on thermal conductivity. There have been numerous studies in the literature using theoretical, numerical simulation and experimental methods. Metals in the composite occur mainly in three forms, porous foams metals, disperse…
H+-restacked nanosheets and nanoscrolls peeled from K4Nb6O17display different structures and surface characters. The two restacked samples with increased surface areas have an amazing visible-light response for the photodegradation of dyes, which is superior to commercial TiO2(P25) and Nb2O5. By comparison, H+/nanoshe…
Polycrystalline Pb( Zr0. 52Ti0. 48) O3ceramics in tetragonal phase with an average size 2-3 μm of uniformly distributed grains were prepared through a conventional solid state route. In-situ Raman measurements on individual single grain and multiple single grains in subsequence were carried out under a stress field by…
Distribution of natural radionuclide gives signif- icant parameter to assess the presence of gamma radioactivity and its radiological effect in our environment. Natural ra- dionuclides are present in the form of 226 Ra, 232 Th and 40 Ki n soil, rocks, water, air, and building materials. Distribution of natural radionu…
ZnO nanoparticles films were prepared via sol-gel process and incorporated into inverted organic photovoltaic devices with a structure of ITO/ZnO/P3HT:PCBM/MoO3/Ag,in which ZnO film served as an electron selective layer.The effects of annealing temperature of ZnO film on the device performance were investigated.When t…
在 15 浸泡了的先进合成 T300/5405 的变老的性质 # 水力的油， 4010 润滑油， RP-3 煤油和 AHC-1 清洁工被学习。吸收和 composites 的机械性质被测量，并且扫描电子显微镜学(SEM ) ，动态机械分析(直接存储器存取) 和红外线的分析(红外) 被用来调查性质变化合成。合成 T300/5405 的变老的机制也被讨论。试验性的结果证明吸收在 AHC-1 合成最大，并且另外的三媒介在 composites 上有小效果。机械性质在老化衰退了。composites 在测试经历了化学变化；在老化，和 AHC-1 清洁工和 4010 润滑油在 T g 上有最大的影响以后， T g 升起了或衰退。
Sr0. 97Si2N2O2∶ 0. 03Eu2 +phosphors were prepared by conventional high temperature solidstate reaction using Si3N4,SrCO3,and Eu2O3as the raw materials. Excited by near-ultraviolet,the phosphors emit bright yellowish-green light and the peak of the emission spectra is at 533 nm. The crystalline phase formations of the…
到 dimethylether (DME ) 的甲醇的催化变换在在超声的照耀的存在或缺席准备的 CuO/Al2O3， ZnO/Al2O3 和 ZnO-CuO/Al2O3 nanocatalysts 上被学习。催化剂被 X 光检查衍射(XRD ) 描绘，表面描述方法(赌注) ，扫描电子显微镜(SEM ) ， H2 温度规划了减小(H2-TPR ) ，温度规划了氨(NH3-TPD ) 的解吸附作用。在到 dimethylether， CuO/Al2O3 的活动， ZnO/Al2O3 和 ZnO-CuO/Al2O3 的甲醇的催化脱水期间，催化剂用超声的处理准备了的试验性的结果表演比在 ultrasonication 的缺席准备的那些高得…
Samples of three ultra-low carbon bake hardening(ULC-BH)steels(BH-0,BH-Mn,and BH-P)were prepared by two annealing processes followed by water quenching and overaging.The texture evolution in the as-treated steels was explored via EBSD and ODF,and the roles of Mn and P elements as well as heat treatment processes in th…