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- 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 Langmuir probe was used to diagnose the plasma characteristics in the vicinity of substrate to investigate the relationship between the ion current density, pulse voltage and working pressure. 本文首先利用朗谬耳探针对基底附近的等离子体特性进行了诊断,考察了离子电流密度与脉冲电压和工作气压的关系。
- 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。
- 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。
- The influence of bar rotating speed and plasma current on the powder yield was researched and optimal process parameters were obtained. 本文对采用等离子旋转电极工艺 (PREP)生产该种类型粉末进行了研究 ,探讨了棒料转速、等离子电流强度等对粉末收得率的影响 ,获得了最佳的生产工艺参数。
- Welding,the increase of plasma current influence more on behavior of bead penetration than weld joint width when using Coaxial Plasma-MIG welding. 焊接过程中,焊丝与母材在高温时熔敷共同形成焊缝中过渡;
- Compared with Offset Plasma-MIG.Welding, the increase of plasma current influence more on behavior of head penetration than weld joint width when using Coaxial Plasma-MIG welding. 与偏置式等离子-MIG焊接低碳钢相比,用同轴等离子-MIG焊接铝合金时等离子电流的增加对焊缝影响更大,而对熔宽的影响相对较小;
- 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)
- The anode gas should be humidified as much as possible, when PEMFC operated at low current density. 故PEMFC在小电流密度工作时,应该使阳极气体充分增湿;
- The current density of discharge is related to the vacuum width, voltage and air pressure. 放电电流密度的大小与空腔尺寸、放电电压和工作气压有关;
- Results show that the proportion of inward to outward growth varies with intensifying time and current density. 结果表明,微弧氧化陶瓷层向内与向外的生长比例受强化时间和电流密度综合控制。
- Many parameters,such as current density,time on and off,pulse frequence,can be interceded in pulse electrolysis. 脉冲电解可以调解电流密度、电流的通断时间、脉冲频率等多个参数,为控制金属沉积层的质量和沉积速度提供了有力的手段。
- The influence of parameters of plasma?rotating?electrode process,such as bar rotating speed,plasma current,flowrate of plasma gas etc,on FGH95 powder yield was studied and optimal parameters were oftained. 本文研究了采用等离子旋转电极工艺制取FGH95合金粉末时,棒料转速、等离子弧电流强度、工作气体流量等制粉工艺参数对粉末收得率的影响。
- SEM results reveal that the SEI film of graphite is denser and uniformer in lower current density than that in higher. SEM结果显示, 小电流密度下石墨表面的SEI膜较致密、 均匀, 而大电流密度下的则疏松、 不均一;
- But current density and heat flux on deformed weld pool surface are not similar Gauss distribution. 而变形熔池表面的电流密度和热流密度分布则不再符合近似的高斯分布。