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1)  DC gain β
直流增益β
1.
The results showed that the SiGe HBTs on the SOI substrate with DC gain β higher than 300 were obtained,but devices on the SOI substrate shown higher self-heating effect than devices on n+ substrate.
性能测试表明,在SOI衬底上获得了直流增益β大于300的SiGeHBT,但SOI衬底上的SiGeHBT表现出较严重的自热效应。
2)  current Gainβ
电流增益β
3)  DC gain
直流增益
1.
In this paper,it is described that the uncertainty of evaluation results of DC gain and offset of linear measurement system by using the terminal-based straight line method,including the courses of analysis and evaluation of uncertainty.
介绍了用端基直线法评价线性测量系统直流增益和直流偏移指标时,测量结果的不确定度,包含了测量结果的不确定度分析和评价过程。
2.
The uncertainty of evaluation results of DC gain and offset of linear measurement system by using the least mean square method, including the courses of analysis and evaluation of uncertainty of them, is described.
介绍了用最小二乘法评价线性测量系统直流增益和直流偏移指标时测量结果的不确定度分析和评价过程。
3.
In this paper,a study has been done on the low temperature Charateristics of the DC gains of low frequency large power silicon transitors.
就晶体管的直流增益 h F E在 - 5 5℃低温条件下的变化及如何提高参数性能做了专题研
4)  high DC gain
高直流增益
5)  DC current gain
直流电流增益
1.
The DC current gain of the transistor with the emitter long edge parallel to orientation is greater than that of parallel to .
在对 In Ga P/ Ga As HBT特性的研究中发现 ,发射极长边与主对准边垂直 ([0 1 1 ]方向 )和平行 ([0 1 1 ]方向 )放置时 ,其直流电流增益和截止频率是不同的 。
6)  nonlinear DC gain
非线性直流增益
1.
The operational amplifier nonlinear DC gain is modeled with emphasis and simulation results show it introduces odd harmonic distortion.
重点实现一种运放非线性直流增益模型,仿真表明它更有效反映奇次谐波失真,为保证模型真实性,综合考虑调制器其他非理想因素,如时钟抖动、量化器失配、采样噪声、开关非线性电阻以及运放参数(色化噪声、饱和电压、增益带宽、摆率等)。
补充资料:1-[β,β,β-三(对氯苯基)丙酰]-4-甲基哌嗪
分子式:C26H25CL3N2O
分子量:487.85
CAS号:2390-22-9

性质:该品溶点213-215℃。作兽用驱虫药时常用基盐,又称Dieroden。盐酸盐的熔点为267-269℃,易溶于热水和醇。

制备方法:以三(对氯苯基)甲醇(Ⅰ)为原料,与氰乙酸加成得β,β,β-三(对氯苯基)丙腈(Ⅱ),经浓硫酸水解得β,β,β-三(对氯苯基)丙酸(Ⅲ),再用五氯化磷酰氯化,得到β,β,β-三(对氯苯基)丙酰氯(Ⅳ),最后与N-甲基哌嗪缩合制得海涛林。

用途:该品为治疗牛、羊矛形腔吸虫病的高效药物,具有作用强、驱虫率高(96%以上)、毒性低、适口性好等优点,国外畜牧业应用十分广泛。

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