A modified polyol process was used to prepare 40% Pt/C electrocatalyst for direct methanol fuel cells. TEM and XRD were carried out to characterize the as-synthesized samples.
通过调变的多元醇法制备了40%Pt/C直接甲醇燃料电池阴极电催化剂，应用透射电镜及X射线衍射方法表征催化剂。
For polypyrrole/carbon nanotube composites, the morphology of fabricated composites can be found not only particle-type of polypyrrole but also tube-type of core-shell structure of polypyrrole/carbon nanotube composites which has been further confirmed by TEM image analysis.
进一步导入奈米碳管形成聚吡咯/奈米碳管复合材料后，由FE-SEM及TEM观察可知，其表面形态除了聚吡咯颗粒聚集外，奈米碳管表面有聚吡咯层的披覆，形成「核-壳结构」。
Micell morphologies of SPPBGE in water were observed with TEM, they change with the concentration and molecular structure.
用透射电镜观察了胶束形态，受溶液浓度、物质结构等因素的影响，胶束形态各异、大小不均。
SARS may accelerate the establishment of national reaction sys-tem to meet the future disaster.
SARS除了带给人类灾难以外，也带给我们更多的思考，并可能会促成我们建立相应的机制，以应对未来可能出现的更大灾难。
TEM and SEM were used to test the structure and figure of polyamine flocculants.
利用电子透射电镜和电子扫描电镜对聚合物的结构形貌进行了表徵。
By using TEM and STM, it is confirmed that surface of inner pore and pore diameter distribution were important for the activity of catalyst.
通过透射电子显微镜和隧道扫描显微镜对Ys载体进行结构表征，证实了其内孔表面的大小与孔径分布状态对催化剂活性的作用。
Water-soluble malonic acid C_(60) mono-adduct was synthesized by Bingel reaction. The self-assembly of CdS nanoparticles with C_(60) derivatives by electrostatic interactions was obtained and characterized by 1HNMR、TEM、IR、Uv-Vis、PL spectroscopy.
利用Bingel反应合成水溶性C_(60)丙二酸单加成衍生物，研究其与CdS半导体纳米粒子间的自组装，用1HNMR、TEM、IR、Uv-Vis、PL等方法表征，并探索了上述体系中加入Eu~(3+)时荧光性质变化。
Aligned CNT films are analyzed by SEM, TEM and Electron energy spectrum. The growth mechanism of aligned CNT films is studied based on the experiments.
研究表明，两步淀积工艺制备的金刚石薄膜具有更为优异的场发射特性和稳定性，尤其适于作为FED的阴极材料。
The calvarium of offsprings was used to investigate the effects of fluoride on ul-trastructure by LM and TEM.
NaF浓度为3户nunoUL时，抑制了细胞的活性／期细胞数明显增多，G／M期细胞明显减少。
A crack penetrating a nano particle was observed by TEM, which was cused by the residual stress induced by the thermoelastic mismatch between the dispersion phase and the matrix.
明确观察到Al〓O〓基纳米复相陶瓷穿晶断裂过程中，由于热弹失配产生的残余应力诱导裂纹穿过纳米弥散颗粒并发生偏折的TEM图象。
In this paper, a simple coprecipitation technique had been successfully applied for preparation of pure ultrafine single phase Ta_2O_5-based solid electrolyte powders. Ammonia spirit was used to precipitate M~Ti~(4+、Zr~(4+)、Fe~(3+) and Ta~(5+) cations as hydroxides simultaneously. The effects of precipitating process conditions (such as consistency of reactant, content of PEG, pH and rate of titration) on the coprecipitation of the products and the calcination temperature were studied and the optimum process conditions for the manufacture of powders were determined. DTA, XRD, TEM, grain-size distribution meter and some other experiment methods had been employed to characterize the products. The effluent treatment was researched by lime and evaporation, and the content of F~- was tested by ion chromatograph.
本论文以金属Ta和R(R分别为Ti，Fe和Zr金属)为原料，氢氟酸为溶剂，氨水为沉淀剂，采用反向滴定化学共沉淀法制备超细氧化钽基固体电解质粉体；研究了反应物浓度、分散剂PEG10000的用量、pH值、干燥条件、焙烧温度及其它因素对氧化物粉体制备工艺的影响，确定了最佳工艺参数；并用差热仪、透射电镜、离心粒度分布仪、激光粒度仪等实验手段对固体电解质粉体有关性质进行了测试和表征；采用石灰法、蒸发法对含氟含氮废水进行了有效处理，用离子色谱仪检测了处理后废水中氟离子的含量。
Based on XRD measurement of residual stress in the matrix and TEM observation of microstructure, the mechanism of microyield and microcreep of the particle reinforced composites was analyzed.
利用XRD方法测定了复合材料中的残余应力，利用TEM及HRTEM研究复合材料的微观组织结构，在此基础上分析了复合材料的微屈服与微蠕变机制。
Secondly, we examine the COBRA with segmented parabolic reflectors. The design of the reflector is re-expatiated, which is composed of several equivalent parts of parabolic reflector with the same axis and focus. The radiation formulas are deduced with Current Distribution Methods, and the radiation patterns are calculated. The results show that it can produce high-gain circularly polarized field in the boresight direction (the gain is about 30dBi when the diameter of the reflector is 1.3m) and its 3dB bandwidth is 78%. The radiation formulas of TEM coaxial mode as the radiation mode of COBRA are also deduced. At last, a new folding antenna has been put forward and designed.
在COBRA天线方面：重新阐述了反射面的设计公式，该反射面是几块不同焦距抛物反射面的共焦共轴组合；用电流分布法推导了天线的辐射公式并编写了计算程序，利用该程序对天线的辐射方向图和频带宽度进行了讨论，计算表明这种天线可以在轴线上获得高增益的圆极化波(当反射面直径为1.3m时增益为30dBi)，其3dB带宽为78％；推导了同轴TEM模作为COBRA天线馈源时的辐射公式；最后，提出并设计了一种折叠式COBRA天线。
In this paper, the deformation process of PET spherulites from spherulite to network structure during biaxial stretching in twice was investigated by means of TEM, C PM.
用透射电子显微镜、聚敛偏光显微镜及小角X射线衍射研究了聚对苯二甲酸乙二酯球晶在双轴二次拉仲下由球晶结构转变到网络结构的过程。
Diameter of the core and thickness of the shell were measured with TEM after each stage of synthesis.
利用TEM等对乳液和微胶囊进行表征。
Among them the Gear's algorithm with variable order and variable step-length is most suitable for control sys- tem simulation.
微分方程组的数值解法很多，其中以变阶变步长Gear算法最适合控制系统仿真。
The experiments of UWB pulse generation using a photoconductive switch in GaAs: Cr operating in linear mode and parallel plate Blumlein transmission line, and radiation by an exponential TEM horn are described.
开展了光导开关产生超宽带电磁脉冲的实验研究工作，利用工作在线性模式的GaAs光导开关、平板Blumlein传输线和指数形TEM天线，实验获得辐射脉冲半高宽1.2ns、峰值功率100kW的超宽带电磁脉冲。
TEM morphology observed the modified silica dispersed in PET matrix, having average particles diameter of 50 to 100 nanometers.
TEM形态分析，观察到改质之二氧化矽粒子直径大约在50 nm至100 nm左右。
Based on this, the effect of firing schedules on the opacification was also observed.
采用DSC、XRD和TEM等测试手段，研究了分相-析晶乳浊熔块在热处理过程中的相变过程，并在此基础上研究了不同的烧成制度对釉面乳浊度的影响。
The desulfurizers were characterized by XRD, TEM and TPR. The stability of desulfurizers in ammonia water and hydrochloric acid was studied. Additionally, the changes of concentration of H2S in the off-gas were investigated in the sweetening process and the desulfurization capacities of two desulfurizers were compared.
用XRD、TEM和TPR等方法表征制得的两种凹凸棒石基脱硫剂，研究凹凸棒石基脱硫剂在氨水、盐酸中的稳定性；通过检测脱硫过程中尾气中H2S浓度的变化并分析脱硫剂的硫容比较两种脱硫剂的脱硫性能。