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 power 功率(50207)电力(49144)电源(19509)
 功率
 Study on High Power Microwave Transmission Line and Mode Conversion 高功率微波传输线及模式变换研究 短句来源 Research on the Peak-to-Average Power Ratio for Wireless Communication Systems Using OFDM OFDM无线通信系统中峰均功率比的研究 短句来源 Per-path-per-weight Beamforming and Power Control in CDMA System CDMA每路径权矢量波束成形与功率控制 短句来源 Researches on Techniques of Reducing the Peak-to-Average Power Ratio in Multi-Carrier Communication Systems 多载波通信系统中峰值平均功率比抑制技术研究 短句来源 Study of Coupling Effect and Propagation Mechanism of High Power Microwave Pulse 高功率微波脉冲的耦合与传播研究 短句来源 更多
 电力
 Design of a Remote Control of Electric Power System 电力遥测装置总体设计 短句来源 An Optical Link of 30/32 Channel PCM Signal Transmission for Power Networks 电力系统光纤传输PCM30/32路信号的研究 短句来源 THE SPECIFICATION OF THE PROTOCOL OF USER LAYER IN THE POWER SYSTEM REAL-TIME DATA TRANSMISSION 电力系统实时数据传输应用层协议描述 短句来源 CHINESE POWER SYSTEM TELECOMMUNICATIONS TOWARDS THE 21 CENTURY 迈入21世纪的中国电力通信（一） 短句来源 China’s Energy Structure and Electric Power Planning 我国的能源结构与电力规划 短句来源 更多
 电源
 Investigation of Electromagnetic Interference (EMI) Issues of Switching Mode Power Supply(SMPS) 开关电源（SMPS）电磁干扰（EMI）问题的研究 短句来源 An Average Model and System Analysis for the High Frequency Switching Power Supply 高频化开关电源的平均模型及系统分析 短句来源 Analysis and Design of Switched Power Supply in Colar TV Set Beijing Brand Model 8306 北京牌8306型彩色电视机开关电源的分析和设计 短句来源 The Design of a 400 W Power Supply for 32-bit Microcomputers 32位微机400W电源的研制 短句来源 Constant Power Supply for the Filament of High-power Transmitting Tube 大功率发射电子管灯丝电源的恒定功率供电 短句来源 更多
 能量
 Restriction of Power and Process Process of Convergence in LMS Algorithm LMS算法的能量约束和收敛过程 短句来源 The simulation results show that the VCGG algorithm performs better, in terms of power efficiency, number of communication neighbors and interference, than the existing SΘGG and SYaoGG algorithms. 模拟结果显示:VCGG算法与SΘGG,SYaoGG等算法相比,减少了节点的传输功率,降低了通信邻居节点的数目,减轻了邻居节点的干扰,提高了能量的使用效率. 短句来源 It's concerned first in this paper with the analysis of key factors of direct sequence code UWB (DS-UWB) interference power to narrow bandwidth system by research of power spectral density (PSD) of DS-UWB signal, which including energy spectral density (ESD) of pulse shape, PSD of modulated signal and pulse repetition frequency (PRF). 从信号功率谱密度角度分析了DS-UWB信号对窄带系统的干扰,讨论了脉冲能量谱密度(ESD),已调信号功率谱和脉冲重复频率(PRF)对DS-UWB信号功率谱即干扰功率产生的影响。 The test results show that the power fibers have high light transmission in the visible and near infrared wavelength, the transmission is above 99. 7 percent, at the same time the capacity of enduring laser power density for 1. 06μm laser light is 3. 5GW/cm2 for pulse laser and 2. 0MW/cm2 for cw laser, they have comparatively laser destructive threshold. 测试表明该能量光纤在可见光到近红外波段具有较高的光透过率,每米达到99．7％以上,1．06μm脉冲激光功率密度达到3．5GW／cm2,连续激光功率密度达到2．0MW／ cm2,具有较高的激光损伤阈值。 Power Attack of SERPENT and SAFER Cipher Algorithm SERPENT和SAFER密码算法的能量攻击 短句来源 更多

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 power
 If is a ?2-grading of a simple Lie algebra, we explicitly describe a-module Spin0 () such that the exterior algebra of is the tensor square of this module times some power of 2. The operation adj on matrices arises from the (n - 1)st exterior power functor on modules; the analogous factorization question for matrix constructions arising from other functors is raised, as are several other questions. Let q be a power of p and let G(q) be the finite group of Fq-rational points of G. We prove a Tauberian theorem of the form $\phi * g (x)\sim p(x)w(x)$ as $x \to \infty,$ where p(x) is a bounded periodic function and w(x) is a weighted function of power growth. A new C*-algebra of strong limit power functions is proposed. 更多
 The time lag due to the backlash of the regulator and the heat fluetuation of the heater were diminished by the following two improvements. (1)The regulator (murcury thermo-expansion type) is put into constant vibration by placing it near the motor of the stirrer to diminish the backlash of murcury column. (2)The switch of the relay is shunted by several lamp resistances, so that the heater maintains constant heating with lesser power when the relay switch is in the“off”position,but with full power... The time lag due to the backlash of the regulator and the heat fluetuation of the heater were diminished by the following two improvements. (1)The regulator (murcury thermo-expansion type) is put into constant vibration by placing it near the motor of the stirrer to diminish the backlash of murcury column. (2)The switch of the relay is shunted by several lamp resistances, so that the heater maintains constant heating with lesser power when the relay switch is in the“off”position,but with full power rating when the relay switch is in the“on”position. As a result,the precision of control of temperature of a thermostat may be improved more than 10 times. At room temperature of 20-30℃ and thermostat temperature of 40℃,the variation of reading of the Beckmannthermometer (estimate reading 0.002℃) can not be observed. 在普通的恒温器中加以下列二改进,可以减小由于调节器迴差及加热器热量起伏所引起之时滞,提高精密度达10倍以上。在室温20—30℃,槽温40℃可维持柏克曼温度计(估计0.002℃)读数不变(±0.001℃以上)。改进:(1)由电动搅拌器使调节器(汞膨胀式)产生振动,可以减小汞柱迴差。 (2)在替续器之加热开关上并联电阻,使有一定功率经常加热,可以减小热量起伏。 A simple equivalent circuit of the taper section of a class of high-power mierowave filter consisting of taper sections of radial line and sections of uniform line is established. I?y making use of the equivalent circuit a simplified design of tnis class of filter of one or more sections is developed. 对于过渡波导节构成的一类大功率微波滤波器,我们建立了过渡节的等效电路,最后,根据此等效电路我们即可建立单节及多节由过渡波导节构成的大功率微波滤波器的分析和设计的一个简化方法。 According to the relation between the power spectrum and the autocorrelation function, a simple method for the measurement of the power spectrum from the autocorrelation function, or vice versa, is given. The apparatus used for the measurement consists of a photoelectric waveform generator and a harmonic analyser. The errors in autocorrelation function are discussed in case of the power spectrum being obtained by the filter method. 本文根据频谱和自关函数相互变换的关系,给出一种简单的频谱或自关函数的转换测量方法。文中还分析了有关转换测量中的误差问题. << 更多相关文摘
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