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- 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。
- cathode emission current density 阴极发射电流密度
- 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
- 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。
- 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
- 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 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。
- Based on the thermionic emission theory of the current density of 4H-SiC Schottky barrier diodes under the forward bias, the calculations for the Schottky barrier height ? eff and the specific on-resistance R on are presented. 在分析 4H SiC肖特基势垒二极管正向电流热电子发射理论的基础上 ;计算了肖特基势垒高度?eff和串联电阻Ron.
- Much attention is paid on the economic current density in the conductor. 很重视对导体中的经济电流密度的评估。
- Tunneling process is important in the low to moderate current density range. 在中等及中等以下电流密度下,隧道穿透过程是重要的。
- The current density reduces along with the temperature of hollow cathode rise. 电流密度随空心阴极温度的升高而下降。
- 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。
- emission current densities 发射电流密度
- 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。
- The conversion increased with the increase in current density and with the decrease of the thickness ofsulfur bed. 实验发现由疏转化为硫酸的量随电流密度的增加而增加,随硫床层厚度的降低而增加。
- Tin whisker growth at high current density was more than the one at lower current density. 实验结果显示,电流密度高的试片锡须生长数量较多于电流密度低的试片。
- When the current density finally reaches the steady state,the pore distribtion is complete. 当上升过程结束,电流密度达到稳定值后,孔的分布已完成.
- There was no significant difference of the VGCC current density between control group and BFP or HSH971 treated group. 单独应用上述浓度的BFP和HSH971孵育细胞6h,VGCC电流密度较空白对照组差别无显著性。 (P>0.;肠)