Q band

英 [kjuː bænd] 美 [kjuː bænd]

网络  Q带

医学



双语例句

  1. Systems requiring band and high Q.
    需要频带和高q值的系统。
  2. The resonator exhibited a very high Q value about 30000 at 77 K. The filter showed an excellent selectivity. At the band edge of the filter, the slope was about 17 dB/ MHz.
    在77K时,它具有很高的品质因子,约为30000.测试结果表明,该滤波器具有很好的选择性,带边陡度为17dB/MHz,带外抑制优于-90dB。
  3. The Effect of Q-value of the Quartz Resonator on the Filter Characteristic at Very Narrow Frequency Band
    石英谐振器的Q值对甚窄带滤波器性能的影响
  4. Forward error correction ( FEC) can improve the performance of optical communications systems. Two kinds of FEC are, In band FEC and Out of band, employed by the Optical Transport Network.
    分析FEC两种形式在高速光传送网络系统中的应用与对于系统Q值改善。
  5. Design of the high Q following band-pass filter
    高Q值跟踪带通滤波器的研究与设计
  6. This paper describes the measurements of several high frequency parameters of the fixed condenser by a resonance method with the aid of a wide frequency band Q meter.
    本文主要介绍用谐振法(借助于宽频带Q表)测试固定电容器的几个高频参数。
  7. Central Frequency Adjustable High Q Value Micromechanical Band Pass Filter
    一种中心频率可调节的高Q值微机械带通滤波器初探
  8. At the same time it only uses a high Q Band Rejection Filter ( BRF) in relatively lower frequency, this indirect programmable trapping wave in wide range of higher frequency will be accomplished.
    在警用扰频技术领域,间接可编程陷波法有着极其独特的应用优势,使用他可以在干扰频段范围内任意开辟出一个通讯频段窗口。
  9. Two high Q bandpass filters at millimeter wave band based on Substrate Integrated Waveguide ( SIW) and Low Temperature Co-fired Ceramics ( LTCC) are designed in this thesis, and one is realized.
    本文主要讲述了基于介质集成波导(SIW)技术和LTCC工艺的毫米波频段高Q滤波器的研制。
  10. The paper introduces the LRC series connection resonance, requirements of resonance, the frequency of resonance and the length of acceptable frequency band.
    本文介绍了LRC串联谐振、谐振条件、谐振频率、通频带宽度,并且推导了通频带宽度与Q值的关系。
  11. These results suggest that the excited state S_2 populated by TPE or OPE may relax via radiationless process to the fluorescence state induced by OPE of Q band, and then show a normal fluorescence emission behavior.
    本文分析表明:在TPE下,该分子跃迁到激发态S2,经历了无辐射弛豫到达OPE的同一荧光能级,呈现激发Q带所产生的正常的荧光发射;
  12. Study on the absorption spectra of the v_3 band Q branch of sf_6 using co_2 laser sideband spectrometer
    CO2激光边带光谱仪用于SF6分子v3带Q支吸收谱的研究
  13. The transient absorption spectra of Q band and B_y band of Chlorophyll a in ethanol have been observed.
    观测到叶绿素a的Q带和By带的瞬态吸收谱。
  14. A series of tetracarboxylic metal phthalocyanines are synthesized and their electronic absorption spectra are investigated. There are several factors influence the maximum absorption wavelength λ max of Q band: the electronic structure of central metal atom; peripheral substituents;
    合成了系列四羧基金属酞菁配合物,研究了中心金属的电子层结构、取代基效应以及溶剂的极性对于配合物电子吸收光谱最大吸收峰波长λmax的影响。
  15. At the same time, the changes of main frequency, frequency band and quality factor with the variations of gas saturation are analyzed.
    同时在频率域内探讨了纵横波的主频、带宽、品质因素Q随不同含气饱和度的变化。
  16. Matching of narrow band interference filter with central wavelength of Q switch double frequency laser
    窄带干涉滤波器与YAG调Q倍频激光器的匹配
  17. In this paper, the band concentricity ft, information entropy H and lack-information/, have been used to quantitatively analyze the seismic activity patterns in the western part of North Tianshan in Xinjiang.
    文中应用带状集中度Cb值、信息熵H值及缺信量Iq值,定量分析了近年来新疆境内北天山西段小震活动图象的异常特征。