您要查找的是不是:
- The field emission triodes with nanodot emitters exhibited a low gate turn-on voltage of 45 V and high emission current density of 25 mA/cm2 at 120 V. 此场效发射三极体拥有45伏特之低闸极启始电压,且在120伏特的闸极电压下,场效发射电流密度高达25毫安培/平方公分。
- We suggest that as lead-free cathode materials, BNBT and BT outweigh PZT from environmental consideration in spite of the fact that the field emission current density of PZT is slightly higher than that of both BNBT and BT. 结果认为:锆钛酸铅材料的电子发射电流密度略优于其他两种材料,但从无铅化角度来讲,钛酸钡与钛酸铋钠材料将有望取代现有的锆钛酸铅铁电阴极材料。
- DEVELOPMENT OF THE VACUUM DIODE WITH THE HIGH EMISSION CURRENT DENSITIES FERROELECTRIC CATHODE MATERIAL 强发射电流铁电阴极真空二极管试验装置的研制
- cathode emission current density 阴极发射电流密度
- emission current densities 发射电流密度
- Calculate the Surface Field Strength and Emission Current Density of Field Emitter Cathode with Coefficient Method 待定系数法计算场致发射体阴极表面场强和发射电流密度
- emission current density 放射电流密度
- A carbon nanotube cathode with high emission current has been fabricated with the screen printing method. 研究了利用丝网印刷法制备碳纳米管阴极,以获取很大的发射电流。
- The dependence of the field emission current on the applied voltage approximately followed the Fowler-Nordheim (F-N) theory. 场发射电流与电压关系符合Fowler-Nordheim(F-N)理论。
- However, the samples prepared at low current densities had a more crystalline appearance and are generally of much better mechanical strength. 然而在低电流密度下制备的样品有更好的晶型外观并且通常有更好的机械强度。
- NBT has lower current density than that of PZT,but the switching threshold of emission is lower and the depolarization property is better. 与PZT的发射性能相比,NBT发射电流密度稍低,但NBT具有更低的发射起始阈值,更高的耐压强度和更好的退极化性能。
- The magnetic hysteresis curve of iron foil prepared by electrodeposition in different cathodic current densities and temperature was tested. 测试了电沉积溶液温度和阴极电流密度变化时电沉积铁箔的磁滞回线。
- The current densities of anodic oxidation process for aluminium material is an important scale on quality evaluation of aluminium films. 由于电流密度对铝膜阳极氧化的质量影响较大,故它是研究阳极氧化质量评估的重要指标之一。
- It can greately improve the transconductance and current density. 其中pHEMT(pseudo-HEMT,即赝配HEMT)表现尤为特殊,它能够非常显著地改善HEMT的跨导和电流密度,因此具有广阔的应用前景。
- The electron an d current densities, defined by the solution of the Schr?dinger system, converge to a solution of the compressible Euler equation with nonlinear pressure. 由量子力学中的薛定谔方程的解所定义的电子密度和电流密度当Planck常数趋于零时收敛于古典力学中的非线性可压缩欧拉方程的解。
- This specially designed cell is intended for use in studies on time and location measured current densities with different humidification and flow field design. 这个特别设计的电池是用以研究在不同加溼的状况与流道的设计下,测量各时间与位置的电流密度。
- Analysis of the product gave 96.4% of the theoretical active oxygen for lead dioxide, with no significant difference between materials prepared at the different current densities. 对产物的分析表明;产物的活性氧含量为二氧化铅理论值的96.;4%25;且在不同电流密度下制备的材料之间没有显著差异。
- From the practical results,the protection potentials and protection current densities meet the design requirements and are in accord with technical standards. 从实际运行的结果看,罐底板的保护电位都达到了设计要求和标准规定,保护电位分布相当均匀。
- The overvoltage varies inversely with the current density to some extent. 超电压在某种程度上随电流密度成反比地变化。
- Another high-current application that has been proposed is lossless power transmission lines, which can carry much higher current densities than nonsuperconducting ones. 另外一项与高电流有关的应用,是不会损耗能量的电力传输线,因为它能携带的电流大小远高于传统非超导传输线。