Based on this exasperate antenna performance, a new rectifier with high power conversion efficiency and low turn-on voltage is presented.
考虑到单线圈天线的性能降低，设计了一个新的具有高效率低启动电压的电荷泵整流电路。
In addition, the surface morphology of active composite layer and the interface modification between active layer and electrodes could also influence the power conversion efficiency of the solar cell.
通过对器件活性层和电极界面进行修饰和采用不同溶剂、不同给受体掺杂比例、不同活性层厚度成膜等方法对器件进行优化并研究其与器件性能之间的关系；
The company boasts that it produces over 300 watts (300W) of power in the C band, with 60% efficiency of power conversion.
公司称，已开发成功C波段，功率为300W，功率转化效率为60%的放大器。
The problem has been that high temperatures are necessary to power heat-based conversion systems, yet solar cell efficiency rapidly decreases at higher temperatures.
问题是热能转化系统需要更高的温度，而太阳能电池的效率在高温下迅速降低。
Researchers are applying the design to semiconductor materials to make solar cells that they hope will save money on materials costs while still offering high power-conversion efficiency.
研究者正把这项设计应用到制造太阳能电池的半导体材料上，这样他们希望在节省材料成本的同时仍可以提供高效率的能量转换。
An analog maximum power point tracking (MPPT) controller integrated circuit (IC) based on open-circuit voltage method was proposed to enhance the photovoltaic conversion efficiency of solar cell.
为提高光伏电池的光电转换效率，设计一种基于开路电压法的光伏电池最大功率点跟踪(MPPT)控制芯片。
But solar energy photovoltaic power cost is high and its conversion efficiency is low.
但太阳能光伏发电存在成本较高和能量转化效率较低的问题。
The result indicates that the slow wave structure significantly improves the microwave output power and conversion efficiency. The simulated microwave frequency agrees well with the predicted value.
研究结果表明这种慢波结构相对原结构在微波输出功率和转换效率上都有很大提高，微波工作频率与预测相符合。
The effects of the velocity distribution uniformity on conversion efficiency and durability and pressure loss on engine power and fuel economy have been discussed.
讨论了流速分布均匀性对催化转化器转化效率和载体寿命的影响；压力损失对发动机动力性、经济性的影响。
Input and output power of instruments was measured, and efficiency of energy conversion instruments and energy loss was calculated, and effective methods were put forward to improve the system.
测量了各装置的输入输出功率，计算了能量转换装置的转换效率和传输过程中的能量损耗，提出了改进系统的有效途径。
An analytic expression is developed describing the relationship between conversion efficiency and the characteristic parameters of SOA and input pump power.
得到了波长转换效率与半导体光放大器特性参数以及注入泵浦光功率等关系的解析表达式。
These converters perform from positive to positive and negative DC DC voltage increasing conversion with high power density, high efficiency and cheap topology in simple structure.
该变换器完成从正电压至正和负电压的DC- DC升压变换，功率密度和效率高，拓扑结构简单价廉。
At low output voltage, the majority of the rated power of traditional adjustable linear power supply is wasted in the internal power supply and the conversion efficiency is low with huge volume.
传统的可调整线性电源在输出电压低时，电源的大部分额定功率耗费在电源内部，变换效率很低，而且体积庞大笨重。
The double-clad fiber laser has the advantages of simple structure and high reliability, high output power, high conversion efficiency, high beam quality.
它具有结构简单紧凑、输出功率高、稳定可靠、光电转换效率高、光束质量好等优点。
Mode conversion efficiency has been calculated as functions of acoustic frequency, interaction length, guiding layer thickness, and acoustic drive power density.
模式转换效率可化作声波频率、声光作用长度、波导厚度和声波功率密度的函数，并利用数值计算得出结果。
The results of simulation show that the output power and energy conversion efficiency of the said chimney increase along with increasing the area of heat-collecting shed and the height of the chimney.
数值模拟结果表明，太阳能烟囱的输出功率及能量转换效率随集热棚面积和烟囱高度的增加而增加。
The results show that the converter have good ZVS and a special property of loading character, and it has a higher efficiency of power conversion and lower EMI.
结果表明，变换器有良好的零电压软开关特性和负载特性，较高的功率转换效率和较低的电磁辐射。
The signal power output of high conversion efficiency is depended on the optimum crystal lengths, pump intensity and signal power.
高转换效率的信号光输出取决于抽运光和初始信号光的强度及晶体长度的最佳优化值。
In the case of low laser power, by means of cylindrical focusing laser beams, energy conversion efficiencies were increased by a factor of 8 to 30 with a maximum conversion efficiency of 64%.
利用圆柱面透镜将激光束聚焦的办法使能量转换效率提高了8到30倍。用此方法最高能量转换效率达到了64%。
Characteristics of thin disk laser are analyzed. By using some relevant parameters, we obtain numerical values of beam quality, output power and conversion efficiency.
对薄片激光器的输出特性进行了分析，设计了相关参数，并在此参数下得出了光束质量、输出功率和转换效率的理论值。
What is the definition of "Efficiency of a power conversion system"? How to measure?
请问电源转换系统效率的定义，怎样去测量？
By high performance constant-current drive power reached more than 90%, conversion efficiency than traditional fluorescent lamp province electricity rate reaches above 60%.
采用高性能恒流驱动电源，转换效率大于90%，比传统日光灯省电率达60%以上。
Improving the traditional tracking control circuit and power combination to improve the system's energy conversion efficiency about 7 to 10 percentage points, with high stability.
改进传统的控制电路与功率跟踪相结合，提高系统的能量转换效率7到10个百分点，具有较高的稳定性。
As the power efficiency of traditional silicon-based solar cell is low and also it costs high, concentrator photovoltaic systems with high conversion efficiency will become the main direction.
由于传统的硅基太阳能电池发电效率低、成本高，因此高转换效率的聚光太阳能系统将成为研究太阳能发电的主要方向。
The shortcoming of hard switch is that the power loss of power devices increases with the switching frequency, which is no good for system integration and improvement of conversion efficiency.
在硬开关状态下，PWM功率变换器的致命弱点是开关管开关损耗随开关频率成正比增加，不利于系统的集成和转换效率的提高。
The converter provides high conversion efficiency with a simple power component design.
在简单的电力部件设计的情况下，转换器提供了高的转换效率。
As an important method of measuring the conversion efficiency, the measuring of shaft power has become an major parameter in newly-built ships' inspection and acceptance.
作为计算转换效率的重要手段，轴功率测量已成为船厂及船东验收新造船舶的主要参数。
Test results demonstrated that the converter has the advantages of simple topology, high power density, high conversion efficiency, high power factor, uninterruptible power supply, low cost.
试验结果表明，这种变换器具有电路拓扑简单、功率密度高、变换效率高、功率因数高、不间断供电、成本低等优点。
The conversion efficiency of the average power is 4.2% from pump diode to OPO signal output and the signal pulse duration is about 13 times shorter than that of the depleted pump light.
实验中获得的由二极管注入泵浦功率至opo信号光平均输出功率的转换效率达4.2%，信号光脉冲宽度比消耗后的泵浦光脉冲宽度压缩了13倍。
The measured solar-to-fuel energy conversion efficiency — defined as the heating value of the fuel produced divided by the solar radiative power input — reached 0.8 per cent.
测量的太阳能与燃料转换效率（产生的燃料加热值与太阳辐射输入功率之比）达到 0.8%。
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