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In addition, for photodiodes passivated with thin SiO2, Photocurrent decreases slightly, however dark current increases remarkably.

实验中还发现,薄钝化的二极管的光电流衰减最小,其暗电流增加最显著。

Current measurement ; optical current transformer ; photoelectric cell ; calibration ; temperature compensation

电流测量;光学电流互感器;光电池;校验;温度补偿

In an electrolytic cell with proton exchange membrane as the diaphragm, it was found from the electrooxidation of 3-picoline at a PbO2 electrode in acetone/water mixed solvents that the current density at the same anode potential not only increases remarkably, but also the selectivity and the current efficiency of electrooxidation from 3\|picoline to nicotinic acid increase obviously compared with the pure water as the solvent.

在以质子交换膜为隔膜的电解槽内,通过3-甲基吡啶在PbO2电极上的电氧化研究,发现在丙酮-水混合溶剂中,与纯水作溶剂相比,不仅在相同阳极电位下电流密度大幅度上升, 3-甲基吡啶电氧化生成烟酸的选择性和电流效率也明显提高。

The unified discrete iterative map model of peak current and valley current controlled buck, boost, and buck-boost converters is established, and the unified piecewise smooth iterative map and their corresponding characteristics equations are also derived.

本文建立了峰值电流和谷值电流控制Buck,Boost,及Buck-Boost变换器的统一离散迭代映射模型,并导出了统一的分段光滑迭代映射方程及特征值方程,通过数值仿真得到了占空比变化时的正、逆分岔图和Lyapunov指数谱。

As a result that this design, on the one hand, protected microwave system better, on the other hand, it made the microwave transmit efficiently; Using triangle copper plane to couple rectangle wave-guide can make the microwave transmission efficiency reach as high as 92%; Adjusting the magnetic electric current can realize the changes of the magnetic profiles.

这种设计,一方面能很好地保护微波系统,另一方面又能使微波高效地馈入,效率高;同时采用三角形均铜片的耦合矩形波导的设计,使微波转换功率达92%;磁场分布的设计上,通过改变磁场线圈电流来实现,当磁场线圈电流减小时,ECR 区位置朝微波窗口方向移动,将更有利于提高微波的吸收。

When the current increases,this phenomenon becomes more and more obvious,and the temperature of inflection point becomes lower and lower.

在小电流情况下,这种现象不很明显,随着电流的增加,现象表现得越来越明显,拐点出现的温度也越来越低,而且温度超过拐点之后,正向电压值增加得更快。

The effects of the linear birefringence and incident polarizing angle upon the performance of a bulk glass optical current sensor are derived and analyzed, a modulation formula to describe the influences of the linear birefringence to the output signal of the sensor is given.The effect of the incident polarizing angle upon the performance of the system and the condition to determine if or not it can exert the influence are also given.

对线性双折射及入射起偏角对光学玻璃电流传感器输出特性的影响进行了理论推导与分析,给出了光学玻璃电流传感器在非理想状态下线性双折射对输出电压的调制函数的数学表达式,并给出了入射起偏角对系统影响的数学表达式及其对系统有无影响的条件。

When the sulfur concentration is in the range of 0~4 mg/L, the elemental sulfur has a linear relation with the peak current of polarography.

该方法灵敏度高,当元素硫浓度为0.1 mg/L 时仍可以看到明显峰电流;精密度和准确度较好,对1 mg/L 元素硫的测定,标准偏差为0.02;元素硫浓度在0~4 mg/L 浓度范围与极谱峰电流呈线性关系。

The fundamental positive component, which is employed to determine the phase angle of the source current reference, is obtained by performing harmonic analysis on the source voltage, while the magnitude of the source current reference is determined from the viewpoint of energy-balance.

该方法通过对电源电压进行谐波分析,得出电压的基波正序分量,由此来确定电源电流参考的相位信息;同时从能量平衡的角度确定电源电流参考信号的幅值信息。

One wire carries the negative force and another carries the positive force of electricity.

一条电线传导正电极电流,另一条传导负电极电流

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And discuss some key point of integrated management system design, include hazard identification and risk assessment and risk control in the occupational health and safety management, the measure of satisfaction target of customer, the flawlessness of law system, the integration of the integrated management system and enterprise standardization system, unify lead institution and work orgnization, integreted internal audit and integrated management review.

同时,论述了一体化管理体系构建中的几个主要问题,包括职业健康安全管理中的危险源辨识、风险评价和风险控制、顾客满意度的科学监测、法律、法规体系的完善、一体化管理体系与企业标准化体系的有机结合、统一的领导机构和工作机构、一体化的内部审核和管理评审。

Deepwater Taranaki is investigated for its petroleum potential, using all available seismic data tied to shallow-water wells.

运用与浅水井相关的现有全部震波探测数据考察了深海区塔拉纳基盆地的油藏前景。

If you're huffing and puffing at any point during the run, slow down and make sure you can take deep breathes.

如果你任何时候在跑步过程中气喘如牛,降低速度并且确保你能够深呼吸。