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辐射频率
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  radiation frequency
     The experimental results showed that the main mode of the radiation was the TM_(01) mode, and the microwave power exceeded 500 MW, with an power efficiency of above 3%, a radiation frequency of about 3.6 GHz, and a pulse width of over 20 ns.
     结果表明:微波辐射主模为TM01模,辐射功率大于500 MW,微波转换效率大于3%,辐射频率约3.6 GHz,微波脉宽大于20 ns。
短句来源
     A misunderstanding of applying the correspondence principle to the radiation frequency of hydrogen atom
     对应原理对氢原子辐射频率应用的一个误解
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     The radiation frequency tunability of the relativistic klystron amplifier still depends on design of the extract cavity.
     相对论速调管放大器辐射频率的可调性还取决于提取腔的设计。
短句来源
     Result indicated that on the condition of electric field with 10kHz~18GHz radiation frequency, 20~60V/m field strength, the electric igniter can meet with the anti-RF demands of weapon system. The low pass filter can effectively decrease and eliminate the radio-frequency interference of some frequency band, ensure the anti-RF ability of sensitive electric igniter, and the performance of electric igniter isn’t change.
     结果表明在电场辐射频率为10kHz~18GHz,场强为20~60V/m的条件下,该电点火具可以满足武器系统防射频要求,低通滤波器能有效降低和消除各种频段的射频干扰,保证敏感型电点火具的防射频能力,且电点火具性能不受影响。
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     Virtual cathode oscillation frequency is in agreement with the empiric expression (1~2π1/2 )ωpeb. Up to 10% of microwave efficiency is gained. In addition, dependence of radiation frequency and efficiency on external magnetic field, electron beam intensity, electron energy and beam radius is studied through simulation calculation.
     得到了清晰、合理的物理图象,虚阴极振荡频率符合(1~2π~(1/2)ω_(peb)的经验规律。激发微波的效率可高达10%。此外,通过模拟计算,研究了辐射频率、辐射效率与外加导引磁场、电子束流强度、电子束能量和电子束半径的依赖关系。得到了一些合理而有价值的规律。
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  signal frequency
     2. We theoretically study the high-electron-mobility transistor driven by the terahertz radiation, and calculate the gate-to-source/drain admittance and the detection responsivity of the HEMT as a function of the signal frequency.
     2.理论研究了外加太赫兹辐射下高电子迁移率场效应管,模拟计算了高迁移率半导体的栅和源(或漏)的导纳以及探测响应率与入射太赫兹辐射频率的依赖关系。
短句来源
     The response is proportional to signal power and has three characteristic frequency regions depending on whether the internal self generated Josephson frequency, w\-0 , is larger than, equal to, or smaller than the signal frequency, w .
     结果表明 ,辐射响应正比于辐射功率 ,并且根据Josephson固有频率w0 是大于、等于、还是小于辐射频率w ,可将响应分为三个特性频率区 .
短句来源
     The response is proportional to signal power and has three characteristic frequency regions depending on whether the internal self generated Josephson frequency, w 0 is larger than, equal to, or smaller than the signal frequency, w .
     结果表明 ,辐射响应正比于辐射功率 ,并且根据 Josephson固有频率 w0 是大于、等于还是小于辐射频率 w,可将响应分为三个特性频率区 .
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  “辐射频率”译为未确定词的双语例句
     The measurement results show that the radiation power exceeds 300 MW with a frequency of 34~38 GHz and a pulse width exceeds 10 ns, and the radition mode is TM0n mode.
     测试结果表明:微波辐射功率超过300MW,信号脉宽大于10ns,辐射频率介于34~38GHz之间,辐射模式为TM0n模。
短句来源
     Relationship between frequency of electromagnetic radiation induced by rock fracture and the elastic parameters
     岩石破裂电磁辐射频率与弹性参数的关系
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     It is found that E1s, E2s andE2s- E1s decrease with an increasing radiation intensity or with decreasingradiation frequency, which implies that an intense THz fields can enhanceionization of dopants in semiconductors.
     通过理论计算发现,E_(1s)、E_(2s)及E_(2s)-E_(1s)随着辐射强度的增加或辐射频率的降低而降低,这表明了强THz激光可以增大对半导体杂质的电离。
短句来源
     The variation tendency of Tb is consistent with that of If.
     Tb与If随辐射频率变化的整体趋势一致.
短句来源
     Methods Mice were exposed to electromagnetic fields with frequency of 935 MHz and power density of(0 μW)/cm~2,(570 μW/cm~2),(1 400 μW/cm~2) for 35 days(2 h/day). By the end of five weeks the mice were sacrificed,the testis and epididymis were severed and weighed. And the count,motility and morphology of sperm in epididymis were investigated.
     方法用移动电话的模拟辐射源对小鼠进行全身辐射,辐射频率为935 MHz,时间为2 h/d,连续35 d,按平均功率密度分为3个组,即0μW/cm2组(对照组)、570μW/cm2(辐射组)和1 400μW/cm2(辐射组)。
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  radiation frequency
For the same simulated explosion, a study is made of the importance of the spectral dependence of the absorption coefficient on the radiation frequency.
      
Carbon-13 concentrations in the product and MPD yields were measured depending on the laser radiation frequency and Freon 22 and bath gas (nitrogen) pressure.
      
The Effect of Laser Radiation Frequency on the IR Multiphoton Dissociation of Triethylsilane
      
The dependences of the HF* luminescence intensity on the distance Δx between the region in which molecules were excited and the surface and on the laser radiation frequency at different values of Δx were obtained.
      
A comparative study of the effect of IR laser radiation frequency on the yield of secondary reactions and luminescence intensity as functions of the laser pulse energy upon IR multiphoton dissociation of triethylsilane was performed.
      
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  signal frequency
A procedure of signal frequency measurement by the supersolvable pseudoestimates on the basis of the MUSIC and Unitary ESPRIT or their combination was described.
      
Encoding is observed for the signal frequency into a number of fixed levels of sustained pulses in the enzyme activity.
      
Thus, the signal frequency determines the pattern of physiological shifts, influencing the relaxation "quality".
      
Signals are processed in two channels where the spectra of the additive mixture of the signal and interference, which is present within the signal frequency band, are formed.
      
Here, ω = 2πf, f is the signal frequency, ν the electrolyte viscosity, D a diffusion coefficient, and R the radius of the gauze filaments.
      
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A detailed discussion is made on phase-space motion equations and radiation field equations for free-electrons near the magnetic resonance in the axial and helical magnetic fields. Red-shift spectral broadening and gain enhancement for free-electron radiation are obtained near magnetic resonance. Our theory is applicable to variable periodic and taper helical wiggler fields.

本文用单粒子理论方法,详细讨论了螺旋磁场近磁共振下的电子相空间运动方程和辐射场方程,得到了近磁共振下电子辐射的频率红移,谱线展宽和增益增强.我们的理论还适用于变周期和梯度螺旋磁场的情况.

Variations of output energy with the periodic length of the wiggler are calculated

本文计算了自由电子激光器输出能量随摆动器空间周期长度的变化。结果表明:固定辐射频率和工作物质的长度,当摆动器选择最佳空间长度时,激光器输出能量最高;对固定周期长度的摆动器,激光器的输出频谱是随工作物质长度的变化而变化的。

The electromagnetic induced conformation transformations of biological macromolecules are discussed from the quantum theory of interactions between atoms and radiation fields. Based on the proposed theory, the nonthermal microwave resonances phenomena in living cells are explained.

讨论了分子构象与电磁场的相互作用,建立了电磁辐射下分子构象变换的量子理论。据此可以解释活体细胞(大肠杆菌酵母菌)生长率对于微波电磁辐射的频率依赖关系。生物体内蛋白质和核酸分子的构象变换对于实现生物功能具有重要意义。已知很多构象变换皆与分子和电磁场的作用有关。例如,视紫红质吸收可见光后,11—顺视黄醛转变成全一反视黄醛,这一构象变换是视觉光化学的基础;生物膜中构成离子通道的蛋白分子在膜电位和离子流的作用下产生构象变换,是通道和闸门开关的物理基础;近年一些实验发现在微波电磁场作用下大肠杆菌、酵母菌等的生长率表现出极有兴趣的频率依赖,有人把这个实验结果和Fr(?)hlich态联系起来,我们认为细胞复制过程中要经过大分子的构象交换,而上述实验则可用电磁辐照下分子构象的跃迁来解释。本文将对分子构象与电磁场的相互作用作一初步讨论,着重于建立电磁辐射下分子构象变换的量子理论。

 
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