There are many factors that influence the break-over voltage and current. They include gate voltage, background doping, cathode doping degree, device dimension, minor carrier lifetime, gate efficiency, voltage amplification factor and so on. The control of device performances are set forth.
对SITH，分析了负阻出现的条件，给出了转折电压和电流的表达式，讨论了转折电压、转折电流与栅偏压、漂移区掺杂浓度、阴极掺杂情况、器件几何尺寸、少子寿命、栅效率和电压放大因子等的关系。
The amplification and over-expression of the T-bet gene may play a role in the development of N-NK/T-L.
结论T.bet基因在N-NK／T-L肿瘤细胞中存在基因扩增和过表达，T-bet基因的异常表达可能在N-NK／T—L的发生中起一定作用，并有必要对其是否可作为分类依据和辅助诊断的指标做进一步研究。
Over the past few years, with the development of chirped-pulse laser amplification technology, femtosecond table-top-terawatt high power laser system has been developed. This opens for study a whole new regime of laser physics, laser chemistry and other areas.
近些年来，随着啁啾脉冲放大技术的发展，建立起来了时间宽度为飞秒量级的台式太瓦级高功率激光实验装置，为激光物理学、激光化学等领域提供了新的实验手段。
Cable. Make use of this principle, we can quickly locate the target cable or break point from large amount of cables, under carpet, the inner of decoration wall and over ceiling1 operation is simple, reliable, the interface is nimble, use is broad, bionic form, carry-over are convenient, since our link tester has two signal output port, it can work when switch is running, this is very convenient. 2 applies to all metal cable such as network cable, tele phone line cable, video cable, automobile circuit. it can not be work with high voltage(above 80V), if you want to locate it, please turn off the cable power supply3 can test the telephone line polarity, connectedness, rough position of breaking point.4 uses the two crocodile clamp to avoid getting rid of the job of make network cable. Use the RJ45/RJ11 interface can connect to the network and the telephone line directly.5 link tester can find out that pair of circuit line cable from large mount of cables. 6 high amplitude ranks 200 times amplification circuit is sui table to locate long distance cable.7 two-sided network lines sequence indicator is easy to examine the network line cable whether or not correctly conveniently. 8 portable types multifunctional bag can encase most of your engineering tools; remit your messy carry-over of implement bothering. 9 adopt two 9V batteries.
线路通产品特点：1 操作简单、性能可靠，接口灵活、用途广泛，仿生外形、携带方便，由于本设备采用了信号双路输出方式，可以解决交换机工作状态下使用，避免了关掉交换机影响其他线路的使用的麻烦。2 适用于查找网络电缆、电话线路、视频电缆、汽车电路、无强电状态下的所有金属电缆。3 可以测试电话线路极性、连通性，断点大概位置。4 两个鳄鱼嘴夹，避免了去做水晶头的麻烦，RJ45/RJ11接口线，可直接连接网络和电话线模块。5 寻线器快速地在众多紊乱的线路中找出需要查找的那一对线路线缆。6 高音频振幅级别200倍的放大电路，适合长距离电缆定位。7 双面网络线续灯可以更直观方便的检查校正网络线续线路连接是否正确。8 便携式多功能软包，可以把您工程施工、维护的基本工具装齐，免除您工具散乱携带的麻烦。9 本寻线器采用2节9V电池。
Be work with high voltage(above 80V), if you want to locate it, please turn off the cable power supply3 can test the telephone line polarity, connectedness, rough position of breaking point.4 uses the two crocodile clamp to avoid getting rid of the job of make network cable. Use the RJ45/RJ11 interface can connect to the network and the telephone line directly.5 link tester can find out that pair of circuit line cable from large mount of cables. 6 high amplitude ranks 200 times amplification circuit is suitable to locate long distance cable.7 two-sided network lines sequence indicator is easy to examine the network line cable whether or not correctly conveniently. 8 portable types multifunctional bag can encase most of your engineering tools; remit your messy carry-over of implement bothering. 9 adopt two 9V batteries.
l线路通产品特点：1 操作简单、性能可靠，接口灵活、用途广泛，仿生外形、携带方便，由于本设备采用了信号双路输出方式，可以解决交换机工作状态下使用，避免了关掉交换机影响其他线路的使用的麻烦。2 适用于查找网络电缆、电话线路、视频电缆、汽车电路、无强电状态下的所有金属电缆。3 可以测试电话线路极性、连通性，断点大概位置。4 两个鳄鱼嘴夹，避免了去做水晶头的麻烦，RJ45/RJ11接口线，可直接连接网络和电话线模块。5 寻线器快速地在众多紊乱的线路中找出需要查找的那一对线路线缆。6 高音频振幅级别200倍的放大电路，适合长距离电缆定位。7 双面网络线续灯可以更直观方便的检查校正网络线续线路连接是否正确。8 便携式多功能软包，可以把您工程施工、维护的基本工具装齐，免除您工具散乱携带的麻烦。9 本寻线器采用2节9V电池。
The main disadvantage of push-pull class A amplification over single-ended class A, is the necessity for a phase splitter stage to generate the oppositely-phased drive signals.
的主要缺点推挽放大了A类单端A类，是有必要的一个阶段分流阶段产生相反相驱动信号。
Addressed us over the loudspeaker Hearing Aid and Amplification System
透过扩音器对我们演讲助听器与声音扩大系统
To reduce the impact of optical signals in EDFA amplification process, EDFA gain control over the tilt is exactly necessary.
为了减少这种影响，在EDFA对光信号进行放大的过程中，就需要对EDFA的增益斜率进行一定的控制。
However, because of the uncertainty of the brand itself and the over-amplification of the brand functions in brand research, it causes that whether in practice or in theory, brand management is applied in stead of marketing management, and causes the emptiness in brand method application.
然而由于品牌本身的不确定性和品牌研究中对品牌功能的无限放大，导致简单地用品牌经营代替营销管理和品牌工具运用中的大而无当。
Hardware which used multi-level amplification, filtering, voltage RMS calculation, analog-digital conversion and other modules on the sensor signals transmitted over the secondary treatment, we can get the voltage value that is associated with the concentration in the end.
硬件采用多级放大、滤波、电压真有效值计算、模数转换等模块对传感器传输过来的信号进行二次处理，最终得到与浓度相关的电压值。
The fuctions of impedance matching, over voltage protection, AC/DC coupling and amplification/attenuation in the analog circuit are designed to enhance the reliability and testing precision of the module.
设计了具有阻抗匹配、过电压保护、AC/DC耦合、放大/衰减功能的前端信号处理电路，提高了模块的可靠性和总体测试精度。
Centrosome amplification and over-expression of P53 protein in esophageal carcinoma
中心体异常及P53蛋白过表达在食管癌变过程中的作用
Over the coming years, Segovia would perfect his technique and push luthiers to experiment with new woods and designs that could increase the natural amplification of the guitar.
随后的几年中，塞戈维亚的技艺日臻纯熟，鼓励弦乐器工匠去对吉他进行木材和设计方面的设计改进试验，这样放大了吉他自然音量。
Chirped-Pulse Spectrum Shaping Using the Over-Saturating Course in Optical Parametric Chirped Pulse Amplification
光参量啁啾脉冲过饱和放大实现超短脉冲的频谱整形
This method was invented by Notomi et al. in 2000, and it has been applied in many fields because of its many advantages such as faster, more sensitive, cheaper and easy to judge results etc. over conventional nucleic acid amplification methods.
该方法是Notomi等2000年发明的，由于它与其它的核酸扩增方法相比较，具有更快捷，更敏感，更廉价和能即时判断结果等优点，已经应用到了多种病原核酸的检测上。
The result indicates that the (amplification) capability of Tgo enzyme is the same as that of Taq enzyme. But the amplification fidelity of Tgo enzyme is over 30 times higher than that of Taq enzyme and 1.6 times higher than that of Pfu.
该酶的扩增性能与Taq酶相当，而扩增忠实性分别比Taq酶、Pfu酶高30倍和1.6倍。
Simulation demonstrates that the maximum breakdown voltages of N-and P-channel LDMOS are higher than 320 V, and the isolation structure can withstand the voltage over 300 V, which ensure reliable operation of high-voltage amplification.
模拟结果显示，N沟道和P沟道LDMOS晶体管的最大击穿电压都超过了320V，高压隔离超过300V，从而可以确保其高压放大功能。
The effects of ribA amplification on riboflavin biosynthesis of strain B. subtilis RH13、B. subtilis PK and B. subtilis PK/pXJ96 showed that the expression of ribA gene was the limit factor for riboflavin over production in the strain with lower riboflavin operon expression level.
研究了ribA基因的扩增对工程菌B.subtilisRH13、B.subtilisPK和B.subtilisPK/pXJ96核黄素生物合成能力的影响。结果表明：在核黄素操纵子表达量低的工程菌中，ribA基因的表达是核黄素过量合成的限制因素。
A transmission scheme of 2.5 Gbit/s over 250 km unrepeated span, which is based on the DFRA + EDFA hybrid amplification technology.
提出了基于DRFA+EDFA混合放大技术，实现传输速率为2.5Gbit/s、无中继距离为250km的传输技术解决方案。
Methods Liver cancer Bel? 7407 cells cultured in vitro were exposed to different concentrations of BMK over 72 hours and their enzymatic activity was measured using polymerase chain reaction-telomere repeated amplification (PCR? TRAP). Meanwhile cell proliferation suppression was measured using MTT.
方法：不同浓度的BMK处理体外培养的人肝癌Bel7404细胞72h，聚合酶链反应端粒重复扩增（PCRTRAP）法测定端粒酶活性，四甲基偶氮唑盐比色（MTT）法测定细胞增殖抑制。