Field emission scanning electron microscopy(FESEM) and energy dispersive X-ray spectrometry(EDX) were used to obtain the morphology,number-size distribution and chemical compositions of individual mineral particles collected during the two dust storm episodes in April 2005 in Beijing.
应用场发射扫描电子显微镜和X射线能谱仪,研究了2005年4月北京市区2次典型沙尘天气PM10样品中矿物单颗粒的形貌、数量-粒度分布和化学组成。
The crystals from the experiment were measured by scanning electron microscopy (SEM) to confirm the influence of these factors.
利用扫描电子显微镜对所得到的晶体进行了测定,从而确定了溶剂、过饱和度和杂质对愈创木酚甘油醚晶习的影响。
The structure was characterized with scanning electron microscopy, high resolution transmission electron microscopy, and electron diffraction pattern.
采用扫描电子显微镜(SEM)、高分辨透射电子显微镜(HRTEM)、电子衍射对新材料结构进行了表征。
S_2-4 were prepared, and their microenvironmental changes in the process of COD- removing from contaminated surface water were studied by scanning electron microscope (SEM).
利用扫描电子显微镜(SEM)分析了在去除污染地表水COD过程中固定化球形颗粒的微环境变化,指出物理阻隔、吸附和种群排斥联合作用是固定化微环境对不利外界环境的主要屏蔽机理;同时还指出了通过该方法制备得到的固定化颗粒存在的结构缺陷。
Scanning electron microscope investigated the morphology of support,supported catalysts and polyethylene particles.
扫描电子显微镜 (ＳＥＭ)是研究材料形态、形貌的强有力工具 ,并广泛用于载体催化剂的研究[1～ 4 ] 。
The paper introduces principle of scanning electronic microscope briefly; illust rates its applications of structure, nano size and ferroelectric domain taking e xample for ferroelectric ceramic materials; and explains its developmental tende ncy in combined functions with other instruments and several general questions i n scanning electronic microscope analysis of ceramic materials.
简要介绍了扫描电子显微镜的工作原理;以铁电陶瓷为例阐述了这种检测仪器在新型陶瓷材料的显微结构分析、纳米尺寸研究及铁电畴的观测领域中的用途,说明了扫描电子显微镜与其他设备的组合以实现多种分析功能的发展趋势和陶瓷材料在扫描电镜分析时的几个常见问题。
Briefly introduces the observation of the formation process of scraps of easy cutting steel by scanning electronic microscope,and analyzes effect of metal impurity on crackle when the scraps are formed.
主要介绍了在扫描电子显微镜下观察易切钢切削形成过程,同时分析金属夹杂物在切屑形成时对裂纹形成的影响,收到了满意的效果,为国内金属易切钢切削机理研究探索了一种新方法。
With the help of an optical microscope and a scanning electronic microscope conducted are the detailed observations of the microscopic state change relationship of a Jiafu pulverized coal combustion process.
应用光学显微镜和扫描电子显微镜对加福煤粉燃烧过程中微观形态的变化规律进行了详细的观察。
The micromorphology and crystallization of the electrospun non-woven membranes were studied by a scanning electron microscope(SEM) and X-ray diffraction(XRD),respectively.
采用高压静电纺丝法制备了EVOH-g-SO3H离子聚合物无纺布膜,并采用扫描电子显微镜(SEM)及X射线衍射仪(XRD)对该无纺布膜的微观形貌及结晶行为进行了表征。
Chip behaviors were analyzed using scanning electron microscope(SEM),to study the effects of applied load,scan cycles and scanning direction on nanomachining of Al and Cu samples.
切屑形态通过扫描电子显微镜(SEM)进行观察,分析了不同垂直载荷、循环次数和针尖加工方向下铝铜被加工表面的切屑形成过程。
The performance of the ESEM and its application in textile;
环境扫描电子显微镜的性能及其在纺织上的应用
Analytical research on aged silk by SEM;
扫描电子显微镜对老化丝织品的分析研究
SEM OBSERVATION OF SYNTHETIC FIBER;
合成纤维的扫描电子显微镜观察