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功率
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  power
    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
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  power capacity
    The Study on Power Capacity of Rectangular Waveguide
    矩形波导功率容量研究
短句来源
    In the range of 3.7 -4.05 GHz, the simulated result shows an antenna VSWR of below 1.5. At 4.0GHz, antenna Directivity is 24.26 dB and the aperture efficiency is 78.4%, and the axial ratio is 1.65. In the end, array antenna's power capacity is analyzed and simulated, which proves that this array antenna can radiate high power microwave of 1GW.
    对该天线进行了理论分析和数值模拟,结果表明在3.7~4.05 GHz的范围内,天线驻波比小于 1.5,中心频率4GHz下方向性系数达24.26 dB,口径效率78.4%,在轴向轴比值1.65,功率容量达lGw。
    The optimized results are shown as follows: the inner diameter of bent circular waveguide is 7.0cm, the axial distance between the above two ports is 8.03cm, and the axial length is 15.11cm, The overall power conversion efficiency exceeds 90% in the frequency range from 3.41 to 3.74GHz, with its value up to 95.6% at 3.60GHz, the power capacity exceeds 2.00GW.
    模拟结果表明,当波导内径为7.0cm,可以得到轴线间距8.03cm,轴向长度15.11cm的小型模式转换器,频率在3.41~3.74GHz内,功率转换效率超过90%,其中,频率为3.60GHz,功率转换效率达到95.6%,功率容量超过2.00GW。
短句来源
    The paper gives out the main parameters of the ridge waveguide, cut-off wavelength of the main module, the single module working band of the ridge waveguide, the characteristic impedance of the ridge waveguide, the power capacity of the ridge waveguide, the attenuation of the ridge waveguide, the completed calculation methods for the parameters and the correction curves of some parameters.
    给出脊波导的主要参数 :主模截止波长、脊波导单模工作带宽、脊波导特性阻抗、脊波导功率容量、脊波导衰减 ,及各参数的完备计算方法、部分参数的修正曲线
短句来源
    A High Power Broadband Hybrid Ring and the Analysis of Its Power Capacity
    一种大功率宽带混合环及其功率容量分析
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  “功率”译为未确定词的双语例句
    A Simplified Design of A Class of High-Power Microwave Filter
    一类大功率微波滤波器的一个简化的设计方法
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    The Data Digital Spectral Analysis in Random Vibration
    随机振动数据的数字功率谱分析
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    The APC Experiment of Semiconductor Lasers
    半导体激光器的自动功率控制实验
短句来源
    Analysis for the Bias of the Spectral Estimate of Frequency Sources
    频率源功率谱估计的偏差分析
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    On Spectral Calculation for a Class of Digital Angle-Modulated Signal
    一类数字调角信号的功率谱计算
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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.
      
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  power capacity
One of the technological obstacles is the stability of local power grid owing to the increasing proportion of the wind power capacity.
      
Meanwhile, a typical cylindrical box type window is calculated and used as an example to discuss the power capacity, the special harmfulness and elimination of ghost mode resonance when the window is used to transmit high power Continuous Wave(CW).
      
Normalized stress-length (stress-midwall circumference) area and maximum rate of stress development (do/dtmax) indicated decreased myocardial work and power capacity.
      
Heat power capacity of the internal source in light-transparent coatings of planar solar collectors
      
The limiting power capacity of internal and surface processes of heat absorption by a heat‐protective material is considered.
      
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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...

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。

~~

功率放大机的速度超过一定的限度时,输出电流将有振荡的分量;如果不能迅速衰减,则失真的现象将使功率放大机归于无用.作者在本文中采用基本的运算方程式,来决定这个临界速度的近似值.

By means of a ferrite Faraday-rotator, the performance of an ordinary reflex klystron can be improved. When the output of the klystron is less than a certain specified value, say p, no Faraday-rotation occurs, and thus the r-f signal can be transmitted with very little attenuation. However,when its output is greater than p, a current passed through the solenoid,and Faraday-rotator will attenuate the r-f signals considerably. Such a device tends to limit the amplitude of the microwave energy passing through the...

By means of a ferrite Faraday-rotator, the performance of an ordinary reflex klystron can be improved. When the output of the klystron is less than a certain specified value, say p, no Faraday-rotation occurs, and thus the r-f signal can be transmitted with very little attenuation. However,when its output is greater than p, a current passed through the solenoid,and Faraday-rotator will attenuate the r-f signals considerably. Such a device tends to limit the amplitude of the microwave energy passing through the device, and therefore called a ferrite microwave limiter. Experimental results of the performance characteristics of an X-band ferrite microwave limiter is presented.

利用法拉第旋轉效应,能够制成一种微波限幅器,用来改善一般反射式速調管的性能。当速調管輸出功率小於某一特定值p时,不产生法拉第旋轉。因此,射頻訊号能够以很小的衰減输出。然而,当它的输出功率大於p时,在磁化线圈中便有电流流过,法拉第旋轉器使得射頻訊号大大地衰減,这样,就使得微波能量通过这一設备时,限制了訊号的振幅。因此称之为铁氧体微波限幅器。实驗結果証明,在三公分波段中用铁氧体微波限幅器来改善反射式速調管的性能是完全可行的。

 
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