查询词典 electron

The results show that an electron efficiency over 27% is predicted for suitable dimensions for the complex cavity and magnetic field coefficient and current and the velocity ratio of the electron beam.

标 签 3 mm波段二次谐波回旋管复合腔多模注波互作用 3mm band Second-harmonic Gyrotron Complex cavity Multiple mode interacting with an electron beam

The magnitude of degradation is electron energy dep endent,it goes up as the electron energy increases.

标 签 电子辐照热控涂层光学性能空间环境 electron exposure thermal control coating optical characteristics space environment

In addition, electron gets the transversal drift velocity and meanwhile causes an additional temperature rise in this crossing field produced by space charge field and longitudinal solenoid field.

标 签 电子冷却空间电荷冷却效率漂移速度温升 Electron cooler Space charge Cooling efficiency Transversal drift velocity Temperature rise

Flower-like ZnO nanorods were prepared with the hydrothermal method and characterized by X-ray diffraction and scanning electron microscopy.

利用水热法合成花状的ZnO纳米棒，并对其进行X射线衍射（X-ray diffraction， XRD与扫描电子显微镜（scanning electron microscope， SEM 表征。

Based on the analysis to cascading system of electron multiplication, one more general hypothesis about multiplication process statistics is prompted, and the expressions of noise factor and gain variation factor in cascading multiplication system and their relationships are given.

标 签 电子倍增级联系统噪声因子增益起伏因子 electron multiplication cascading system noise factor gain variation factor

Methods The otoconia of 18 guinea pigs were damaged by a high G force (10 Gy 5 min), and their utricle macula were observed by scanning electron microscopy at 1 h, 2 d and 8 d after the damage respectively. The elements of different kinds of otoconia were measured qualitatively and quantitatively by electron probe Xray microanalysis.

给予过载刺激(10 Gy 5 min)造成18只豚鼠耳石的损伤破坏，用扫描电镜（scanning electron microscopy，SEM）分别观察过载刺激后1 h、2 d、8 d时其椭圆囊囊斑，用X射线显微能谱分析技术(electron probe Xray microanalysis，EPMA)测量不同形态类别的耳石元素构成。

Titanium plate first was cleaned by glow Discharge using argon plasma to eliminate surface contaminants and to produce a consistent and reproducible titanium oxide surface layer. Then an intermediary allylamine deposition was covalently linked to the oxide layer by glow discharge, followed by the covalent binding of albumin to the free terminal NH2 groups using glutaraldehyde as a coupling agent. Surface morphologies were observed by scanning electron microscopy and atomic force microscopy.

样本以扫描式电子显微镜及原子力显微镜﹙AFM﹚观察表面形态变化，以能量分散光谱仪进行表面元素变化之定性分析，使用X光光电子能谱仪检测表面化学键结与元素变化作定性分析与半定量分析，并以胶样金免疫标示法配合使用场发射枪扫描式电子显微镜(Field Emission Scanning Electron Microscope， FEG SEM)，观察钛金属表面白蛋白连接情形作定性分析与定量分析。

Under the model of local thermody n amic equilibrium, the electronic temperature of Cu plasma are deduced to be in t he 104 scale by the relative line intensities. Finally, space characteristics of electron temperature are obtained near the target, the strength and FWHM of N 500.52 nm spectral line are analysed.

在局部热力学平衡条件近似下，根据谱线的相对强度，得到了等离子体电子温度约在104 K以上，给出了靶面附近电子温度的空间演化规律，并探讨了N500.52 nm谱线的谱线强度和半高全宽随激光能量的变化规律标签激光烧蚀谱线展宽电子温度 Laser ablation Line-Broadening Electron temperature

Scanning electron microscopy,transmission electron microscopy,circular dichroism and small-angle X-ray diffraction were used to analyze the aggregation mode of CSG in the organogel phase.A hierarchical self-assembly model was proposed to explain the transition from molecular to primary and secondary structure.It is shown from our results that CSG can aggregate into a micellar fibril nanostructure with high length-to-width ratio which is bundled and entangled to form a three-dimensional(3D) network that immobilize the fluid component probably by surface tension.Moreover,sol-gel polymerization of tetraethoxysilane was carried out using CSG in the gel phase.

通过扫描电镜(ScanningElectron Microscopy，SEM)、透射电镜(Transmission Electron Microscopy，TEM)、圆二色谱(Circular Dichroism，CD)和小角X—射线衍射仪(Small-angle X-rayDiffraction，SAXRD)考察CSG分子自组装行为结果表明，CSG形成的聚集体具有多级结构：首先CSG通过手性堆叠自组装形成直径在9—10nm的细纳米纤维，这些细的纳米纤维再以不规则的六方堆积的方式进行排列，构成直径在40—100nm的粗纳米纤维(即细纳米纤维的&捆束&)，最后粗纳米纤维互相粘连形成三维网络状结构，使有机溶剂&固定&，从而形成凝胶；以CSG有机凝胶为模板，四乙氧基硅烷为前体，通过溶胶—凝胶聚合的方法制备了直径大约为100nm的二氧化硅纳米管。3。

The camera length of electron diffraction in transmisson electron microscopy is one of the main technical parameters in designing electron microscope and the electron diffraction analysis to microcrystal sample. According to Bragg law, the formula of calculating TEM electron diffraction camera length is derived from the research on the ray path of electron diffraction images in TEM and the comparison on electron diffraction with ordinary electronic diffractometer. The difference of physical significance of electron diffraction camera length between TEM and ordinary electronic diffractometer is discussed.

透射式电子显微镜(Transmisson Electron Microcopy， TEM)中的电子衍射相机长度，是电子显微镜设计和对微晶体样品进行电子衍射分析的主要技术参数之一依据布拉格定律，经对TEM中电子衍射成像光路的探讨与研究，并通过TEM与普通电子衍射仪的电子衍射的对比分析，导出了TEM电子衍射相机长度的精确计算公式，阐述了TEM和普通电子衍射仪的电子衍射相机长度所表征的物理意义的区别。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。