When an ideal diode was alive under a magnetic field, it could emit a thermal electron from its negative plate.
通过理论分析,利用理想二极管外加磁场的方法,证明了真空中热电子发射的电子动能分布符合费米-狄拉克分布。
By using scan electron microtechnique and thermal analysis, wood plastic composite mechanism is studied.
采用扫描电子显微技术和热分析对木塑复合机理进行研究。
Kaolinite from sediments in Prydz Bay and adjacent sea area is identified by X-ray differential thermal analysis, infrared absorption spectrum and electron micrograph.
本文对采自南极普里兹湾及邻近海域沉积物中的高岭石运用X射线衍射、差热分析、红外吸收光谱及电子显微照相等方法进行了鉴定。
Organic thermal-protective coating is special coating material applied in many areas including aerospace, electron and electricity, textile, construction and so on.
有机涂层中的热防护涂层是一种具有特殊用途的材料,在航空航天、电子电气、纺织、建筑等领域有着广泛的应用。
Then X ray diffraction (XRD), Scanning Electron Microscopy (SEM) were used to analysis the inside structure of starches with different hydrolysis rates, DSC for the thermal properties analysis;
其次采用X射线衍射(XRD)、扫描电镜(SEM)等分析方法对不同水解率的淀粉微晶进行结构分析,DSC进行热性质分析;
An electron plasma may be in thermal equilibrium state under the confinement by electric and magnetic fields.
电子等离子体在静磁场和静电场的束缚下,可以达到热平衡态。
Then we detected the physiochemical characteristics of the MS sample through scanning electron microscopy ( SEM ) , infrared spectrum ( IR )and differential thermal analysis ( DTA ) .
通过多种检测手段,如:扫描电镜(SEM)、红外光谱(IR)、示差热分析(DTA)等对制备样本的理化特性进行检测。
The graft-copolymer was analyzed with infrared spectrum, thermal analysis, laser Raman spectum, and its structure was analyzed with scanning electron microscope.
利用扫描电镜照片分析了接枝共聚物的结构;
The thermal decomposition products were characterized by the powder X-ray diffraction (XRD) and transmission electron microscopy (TEM).
运用X -射线粉末衍射(XRD)、透射电镜(TEM)等技术对碱式碳酸铜热重分解产物进行了表征。
Laser and electron beam welding produce thermal shocks on the materials with rapid transient and concentrated high energy beam.
激光、电子束等高能束焊接加热具有升温速度快、热集中性与瞬时性强等特点,对被焊材料造成热冲击。
The structure and grain size were established by X-ray diffraction spectroscopy, differential thermal analysis and electron microscope. The application of product was probed also.
用x -射线衍射分析、差热分析、电镜等方法确定了其结构和粒度,并对产品的应用进行了初步探讨。
The thermal shock behavior of 4 kinds of impurity doped graphites was investigated under a simulated plasma disruption condition using high-energy laser and electron beam.
用高能激光束和电子束轰击实验材料,模拟聚变堆面对等离子体材料在等离子体破裂时的工作状态,考察了4种掺杂石墨材料在热冲击下的热腐蚀规律。
The combined effects of the electron thermal conductivity and the impurity radiation on ohmic heating of tokamak plasmas are studied by using a set of simplified energy balance equations.
本文利用欧姆加热条件下简化的能量平衡方程研究了热传导与杂质辐射的综合效应。
The prepared powders and the green and sintered hollow-fiber membranes were characterized by thermal analysis, X-ray diffraction, scanning electron microscopy and X-ray energy dispersive spectroscopy.
用热分析、X射线衍射仪、扫描电镜、X射线能谱等技术对制备的粉体、烧结前后的中空纤维膜进行了表征。
The thin film can be prepared by a plurality of film plating techniques such as high vacuum thermal evaporation, electron beam deposition and sputtering.
该薄膜可采用高真空热蒸发、电子束沉积以及溅射等多种镀膜技术制备。
The application and features of vaccum strip coating processes such a thermal jet evaporation, magnetron sputtering, electron-beam evaporation and plasma enhanced EB evaporation process were reviewed.
介绍了新一代连续带钢镀膜技术-真空镀膜的工艺特点及应用现状。
Scanning electron microscopy were used to observe the changes in the microstructure of YSZ coatings before and after thermal shock, to study the failure process of coating during thermal shock;
利用扫描电镜观察YSZ涂层热震前后显微组织的变化,研究涂层在热震过程中的失效过程;
With the merits of high hardness, high thermal conduction, negative electron affinity, diamond is deemed one of the preferred materials of the field emission cathode.
金刚石因具有高硬度、高热导率、负电子亲和势等优点而成为场发射阴极的首选材料之一。
The impact test, the thermal shock test and the scanning electron microscopy were used to investigate the effect of rare earth oxide on the adhesiveness between the glass coating and the base metal.
利用斑点试验、点蚀试验、电化学测试及扫描电镜等方法 ,研究了熔敷温度、保温时间和稀土添加量等工艺参数对热熔敷法制备的玻璃涂层耐蚀性的影响 ,探讨了添加稀土提高玻璃涂层耐蚀性的机理。
The results showed that electronic thermal conductivity had different effects on electronic maximum temperature, electron-phonon coupling time and electron-phonon coupling temperature.
结果表明:电子热导率对金靶材表面电子最高温度,电声耦合时间及电声耦合温度都有不同程度影响。
The results showed that electronic thermal conductivity had different effects on electronic maximum temperature, electron-phonon coupling time and electron-phonon coupling temperature.
结果表明:电子热导率对金靶材表面电子最高温度,电声耦合时间及电声耦合温度都有不同程度影响。
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