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conversion     
相关语句
  转换
    INVESTIGATION ON OPTOELECTRONIC CONVERSION ATERIAL——CulnS_2 CulnSe_2 AND THEIR SOLIDSOLUTIONS
    CuInS_2、CuInSe_2及其固溶体光电转换材料的研究
短句来源
    THEORETICAL ANALYSIS ON THE PHOTOELECTRIC CONVERSION OF POLYMER SEMICONDUCTOR
    聚合物半导体光电转换的理论分析
短句来源
    THE INFLUENCE OF HIGH-LOW JUNCTION IN EPITAXIAL p-Si ON PHOTOELECTRICAL CONVERSION EFFICIENCY
    外延p-Si中的高-低结对光电化学转换效率的影响
短句来源
    Using D/A Converter to Complete High-precision A/D Conversion
    利用D/A转换器实现高精度A/D转换
短句来源
    A UNIQUE DIRECT ENERGY CONVERSION DEVICE——ALKALI METAL THERMOELECTRIC CONVERTER
    一种独特的热电能量直接转换器件——碱金属热电转换器(AMTEC)
短句来源
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  转化率
    the incident photon-to-current conversion efficiency was raised from 7.59% to 48.32%, 41.19% and 18.92% respectively.
    电池的单色光光电转化率从7.59%分别上升至48.32%、41.19%和18.92%。
短句来源
    The maximal incident photon-to-current conversion efficiency was 48.32% at the wavelength 560nm.
    电池的单色光光电转化率在波长560nm处达到最大,为48.32%。
短句来源
    For example, a maximum methanol conversion of 90.51% , a CO_2 selectivity of 97.77%(mol) and a outlet CO concentration of dry-based gas of 0.56%(mol) are obtained at 220℃ over self-prepared Cu_(45)Zn_(45)Al_(10) catalyst.
    如:自制催化剂Cu_(45)Zn_(45)Al_(10)于甲醇水蒸气重整反应,在220℃时,甲醇转化率达到90.51%,二氧化碳选择性97.77%,产品氢气中一氧化碳的含量为0.56%(干基);
短句来源
    2) In the experiment of CO selective oxidation, the catalyst is CuO/CeO_2, which is prepared by impregnating CuO into CeO_2 support. The catalytic activity is evaluated in the continuous fixed bed reactor too, choosing the CO percent conversion and the CO_2 selectivity as evaluation indexes. The content of CO below 10 ppm after reaction must be achieved or else the excessive CO will poison the membrane.
    2)CO选择氧化部分的实验中,以CuO/CeO_2为催化剂,采用浸渍法将CuO负载在CeO_2气凝胶上,催化剂活性评价也在固定床上进行,选定CO转化率和CO_2的选择性作为评价指标,反应后所得气体中的CO含量要低于10 ppm,以满足PEMFC用氢的纯度要求。
短句来源
    The results indicate that conversion of H_2S is proportional to temperature (t), current density (i) and time (T) in a certain arrange.
    结果表明,H_2S的转化率随着温度和电流密度的增大而增加; 随着反应时间的增加,H_2S的转化率也随之增大,但30min后,H_2S转化率保持稳定;
短句来源
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  变换
    Electrical prospecting Data Nonlinearly Located by the Method of Space Conversion
    利用空间变换实现电法数据的非线性归位
短句来源
    Conversion Process Study and Engineering design of Half bridge Type of Thyristor Arc Welding Inverter
    半桥式晶闸管弧焊逆变器变换过程研究及工程设计
短句来源
    The theoretical analysis and test result of the prototype of 1kW 27VDC/190VDC have indicated that this kind of converter has the advantages such as high power density,high conversion efficiency,strong over-load ability,low output voltage ripper and input current ripper,and it has the important application value in the low input voltage,high power conversion fields.
    1kW 27VDC/190VDC原理样机的理论分析和试验结果表明,该变换器具有功率密度高,变换效率高,过载能力强,输出电压和输入电流纹波小等优点,在低压输入大功率直流变换场合具有重要应用价值。
短句来源
    This paper introduces the design and implementation of 2/4 lines speech interface and echo canceller. This 2/4 lines speech interface includes A/D,D/A conversion,ADPCM coding and decoding,and adaptive echo canceller etc.
    文章介绍了一种2/4线话音接口和回波抵消器的设计与实现方案,该方案实现了2/4线的话音接口,包括A/D、D/A变换,ADPCM编解码,自适应回波抵消等。
短句来源
    Delta conversion is the new technology used in UPS in recent years.
    Delta变换技术是近年来在UPS中使用的新技术。
更多       
  换算
    A Refinement of Coal Low Calorific Value Q_(DW)~f→Q_(DW)~y Conversion Formula
    煤质低位发热量Q_(DW)~f→Q_(DW)~y换算公式的改进
短句来源
    Discussion about Conversion Method for Crossed Crossing Distance and Temperature of Overhead Transmission Lines
    架空输电线路交叉跨越距离温度换算方法的讨论
短句来源
    Cleaning standard and concentration conversion of the main pollutants in coal power station
    燃煤电厂主要污染物浓度换算与净化要求
短句来源
    A new calibration method of SF6 density relay is proposed, in which the process of SF6 filling and exhaust as well as the pressure-temperature conversion are automatically controlled by microchip, which is convenient to use and with good accuracy.
    提出了一种新的SF_6密度继电器现场校验法,即采用16位单片微机来自动完成SF_6的充、放气过程以及对SF_6密度继电器动作值的压力-温度换算,该法灵活方便,同时又能保证很高的准确度。
短句来源
    The operating characteristic test method of AC contactor, the attracting voltage simulating test method of AC contactor at +40℃ and at -5℃, and the release voltage method of conversion of AC contactor at -5℃ were described in this paper.
    本文描述了交流接触器动作特性试验方法 ,以及在 +40℃时吸合电压的模拟试验方法和 - 5℃时吸合电压的模拟试验方法和 - 5℃时释放电压的换算方法。
短句来源
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  conversion
But there appeared to be species difference in arteether metabolism, highest conversion being recorded with humans followed by rats and monkeys.
      
Aldose reductase (AR) is an enzyme that catalyzes the conversion of glucose to sorbitol, which is in turn converted to fructose by sorbitol dehydrogenase.
      
The conversion of CNB could reach 99.9%, and the dechlorination of chloroaniline (CAN) was less than 1.9% when catalyzed by Pt-Sn-B/CNTs and more than 8.0% when catalyzed by common hydrogenation catalysts.
      
Results show that HY is an efficient catalyst for the acetalization and ketalization with high conversion and selectivity in mild conditions.
      
Under these conditions, the conversion and selectivity were over 50% and 97%, respectively.
      
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This paper discusses an advanced dual-slope integration A/D conversion technique-dual-slope integration A/D conversion with self-correcting zero. In this advanced A/D conversion system, since the correcting voltage to compensate drifts is rapeatedly stored by the capacitor, the specifications of offset voltage, offset current and drift with the used D.C. operational amplifiers will be depressed effectively.In addition, this paper states the logical system design of this dual-slope integration...

This paper discusses an advanced dual-slope integration A/D conversion technique-dual-slope integration A/D conversion with self-correcting zero. In this advanced A/D conversion system, since the correcting voltage to compensate drifts is rapeatedly stored by the capacitor, the specifications of offset voltage, offset current and drift with the used D.C. operational amplifiers will be depressed effectively.In addition, this paper states the logical system design of this dual-slope integration A/D conversion with self-correcting zero.

本文分析了一种改进型的双积分式模/数转换技术——自动校零的双积分式模/数转换。这种改进型的模/数转换系统中,由于靠电容周期性地记忆为补偿零漂的校零电压,所以能有效地降低对所采用的直流运算放大器的失调与漂移指标要求。 其次,本文还介绍了这种自动校零的双积分式模/数转换系统的逻辑设计方法。

This paper introduces some basic experiments about silicon solar cell by ion implantation. Ion implantated p+/n and n+/p silicon solar cells have been made, with a conversion efficiency higher than 10% under AMI illumination.

本文介绍了离子注入硅太阳电池的基本实验,研制出p~+/n和n~+/p两种类型的离子注入硅太阳电池,AM1效率优于10%。

A simple photo-galvano-voltaic cell has been constructed by using a Nesa glass coated with SnO2 on both sides as transparent electrodes, one of which is further coated with a photosensitizing dyestuff, meso-tetraphenylporphrin (TPP), forming the photo-cathode, and using an aqueous solution of thionine and Fe+++/Fe++redox couple as the electrolytic solution. By adding a surfactant, Na Lauryl sulfate, into the solution the. surface resistance of the TPP film is greatly lowered, so that the photocurrent of the...

A simple photo-galvano-voltaic cell has been constructed by using a Nesa glass coated with SnO2 on both sides as transparent electrodes, one of which is further coated with a photosensitizing dyestuff, meso-tetraphenylporphrin (TPP), forming the photo-cathode, and using an aqueous solution of thionine and Fe+++/Fe++redox couple as the electrolytic solution. By adding a surfactant, Na Lauryl sulfate, into the solution the. surface resistance of the TPP film is greatly lowered, so that the photocurrent of the cell, is markedly enhanced, and the light conversion efficiency is increased more than twofold. It has been demonstrated that a multilayer liquid film photo-galvano-voltaic cell with film thickness less than 100μ cangreatly increase the light conversion efficiency, and the open-circuit voltage of more than two volts can be easily achieved. Several properties especially the semiconducting characters of the TPP coating material have been shown by analyzing the action spectrum, the Ⅰ-Ⅴ characteristic curve, and the photores-ponse light intensity dependency of this photo-galvano-voltaic cell.

用四苯基卟吩在导电玻璃上的涂层为光电极,构成光生伏打-光原电池(PGV电池) 添加十二烷基硫酸钠能显著提高光电流,使光能转换效率倍增。构成多层液膜PGV电池,开路光电势易于超过2伏。本文讨论了上述电池的若干性质。

 
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