輻射效率 的英文怎麼說

中文拼音 [fúshèxiàolǜ]
輻射效率 英文
efficiency of radiation
  • 輻 : 名詞（車輪中車轂和輪圈的連接物） spoke
  • 射 : Ⅰ動詞1 （用推力或彈力送出） shoot; fire 2 （液體受到壓力迅速擠出） discharge in a jet 3 （放出） ...
  • 效 : Ⅰ名詞（效果; 功用） effect; efficiency; result Ⅱ動詞1 （仿效） imitate; follow the example of 2 ...
  • 率 : 率名詞（比值） rate; ratio; proportion
  • 輻射 : radiation; exposure; radio; beaming
  • 效率 : productiveness; efficiency; productivity; workpiece ratio
  1. Using the particle - in - cell ( pic ) model, a 8 millimeter relativistic backward wave oscillator underlying superradiance mechanism was gotten, the influence on both operation frequency and radiation efficiency of the guiding magnetic field, the diode voltage, the beam current and the beam radius as well as the corrugation structure were also presented

    採用pic方法，通過數值模擬優化設計了超輻射狀態下的8毫米相對論返波振蕩器，分析了引導磁場、二極體電壓、電子束流、電子束半徑、周期慢波結構等對器件的輻射功率及輻射效率的影響。
  2. The sample with low emitter efficiency has completed as the method of above. this lead to the greatly decrease of the reverse recovery time and the low reverse leakage and forward voltage, especially the excellent temperature character of the leakage. the test date shows that the samples reach the first class of international level

    本論文作者通過模擬測試，驗證了課題研究的理論設想，並設計製作了具有低陽極發射效率結構的高壓功率frd ，利用局域鉑摻雜和電子輻照相結合的壽命控制方式，實現器件反向恢復時間的極大減小，並且反向漏電流、軟度因子、正向壓降等關鍵參數也較理想，且具有極佳的漏電溫度特性，達到器件綜合性能的優良折衷，達到國際先進水平。
  3. Then, the radiation efficiency at low frequency and frequency response at high frequency in fluid are computed respectively by both sysnoise software and autosea software

    然後結合sysnoise軟體和autosea軟體分別計算殼體在流場中聲輻射效率在低頻段和高頻段時的頻率響應。
  4. Results are presented for the sound radiation efficiency and power of the modes of the rectangular baffled plate subjected to simply - supported boundary conditions when the plate is excited by obliquely incident plane wave

    通過計算，得到了嵌在無限大障板中簡支板模型在斜波入射作用下的聲輻射功率和輻射效率。
  5. 6 ) the self - absorption of thz waves in doped zn0. 95cd005te < 110 > crystals is the main factor which affects the generation efficiency of thz waves

    對于不同摻雜的zll095cd005te 110單晶，晶體產生thz輻射效率不同的主要原因是晶體對thz輻射的吸收不同。
  6. Our results explain the mechanisms of the composition and doping dependent thz radiation efficiency for the different crystals. experimental results in this thesis are useful for growing eo crystals with high performance, and suggest that more parameters are required for better characterization of this kind of crystals as thz wave emitters. the main results and conclusions are listed as follows : 1 ) experimental measurements with low cd composition zn1 - xcdxte < 110 > crystals ( 0 < x < 0. 25 ) as thz emitters indicate the optimum composition of x = 0. 05

    在國際上，我們首次用實驗研究了不同組分、不同摻雜的zn _ （ 1 - x ） cd _ xte < 110 >單晶（ x = 0 0 . 25 ）對thz輻射的吸收情況和它們產生thz輻射的相位匹配情況，並首次從晶體對thz輻射的吸收和晶體的相位匹配角度解釋了這些晶體產生thz輻射效率不同的原因。
  7. In this thesis, we study the thz pulse generation efficiency of the < 110 > - oriented zn1 - xcdxte crystals with various composition ratios and doping levels, using thz time - domain spectroscopy. it is found that both absorption and phase matching condition play important role. it is the first time to systematically study < 110 > - oriented zn1 - xcdxte crystals with various composition ratios and different doping levels using thz time - domain spectroscopy

    本論文中，我們利用thz時域光譜系統對不同組分、不同摻雜的zn _ （ 1 - x ） cd _ xte < 110 >單晶（ x = 0 0 . 25 ）作為thz輻射材料的性能和光譜響應進行了研究，發現晶體對thz輻射的吸收和晶體的相位匹配是影響晶體產生thz輻射效率的重要因素。
  8. By using of effective mobility power flow method, vibration level and radiated power level of a element cylindrical shell are studied

    利用有效導納功率流法研究了基本圓柱殼體的表面振級和聲輻射功率級。
  9. Using finite element and boundary element method, a modal analysis model of complex structural acoustic radiation in light fluid is proposed for computing modal acoustic radiation frequency, farfield sound pressure, modal radiated acoustic power and acoustic radiation efficiency

    摘要採用有限元和邊界元方法建立了輕流體介質中復雜結構振動聲輻射的模態分析模型，可計算結構的聲輻射模態頻率、模態場點聲壓、模態輻射聲功率和聲輻射效率等聲場特性參數。
  10. Radiation modes are dependent on the radiator ' s geometry shape and vibration frequency, but are not relative to the material characteristic and the border condition of the radiator. further more, the radiation efficiency of the radiation modes falls off very rapidly with the increase of modes order at low frequency. the adjoint coefficient of sound radiation modes is proportional to the corresponding sound radiation power

    聲輻射模態由輻射體的幾何形狀和振動頻率決定，與輻射體本身的材料特性以及邊界條件無關；特別是在中低頻率時，聲輻射模態對應的輻射效率隨模態階數的增加而迅速降低。
  11. Besides, eigenvalue analysis is used in sound - impedance matrix. with the help of optimization theory, the conclusion is received that the radiation efficiences by a group of velocity distribution corresponding to eigenvector are proportional to the eigenvalue of the velocity vectors

    並對阻抗矩陣進行了特徵值分析，從理論上說明了特徵向量對應的一組速度分佈，其輻射效率正比于該階特徵向量對應的特徵值。
  12. The inventive antenna has a very even radiation field on the horizontal plane and is thus ideal for the radio transceiver used in mobile communications

    本發明的天線結構具有寬頻與輻射效率高的優點，適合應用於行動通訊之無線收發機。
  13. Thus a completely numerical compute analysis method is established in fluid about vibrational radiation efficiency at full frequency

    從而建立一套圓柱殼體在流場中振動聲輻射效率在全頻段的數值計算分析方法。
  14. Taking gear case as research object, we studied the sound radiant efficiency of complex box - shape structure under practical stimulation by experiment, mainly observed the difference of sound radiant efficiency between the complex structure under practice stimulation and the known simple structure

    以變速箱為對象，對實際激勵條件下箱形結構的聲輻射效率進行了試驗研究，重點考察了這種結構在實際激勵下的聲輻射效率同已知的簡單結構聲輻射效率的異同以及激勵的改變對輻射效率的影響。
  15. The main parameters of mobile antenna, such as vswr, return loss etc., are introduced. furthermore, the radiation problems by sar are considered in the chapter

    論文第二章將考慮手機系統對天線的要求，介紹了天線的主要參數如vswr 、回波損耗和輻射效率。
  16. The use of aperture coupled feeding widens the working band and increases the isolation. simultaneously, the application of round patch can upgrade the gain and radiation efficiency of the antenna

    採用口徑耦合饋電能夠展寬帶寬，提高隔離度，而採用圓形作為貼片形狀可以提高天線的增益和輻射效率。
  17. By experiment, we found that the variation of gear case radiant efficiency with frequency keep accordance with that of simple one as a whole, but the radiant efficiency of gear case will go beyond any calculation result of empirical formula when the frequency is below 250hz. we also found that stimulation changes affect radiant efficiency little by varying speed experiment, and it can be ignored in engineering calculation. the rectangle structures as gear case, possess characters of both plane and ball, and their sound radiant efficiency lie between plane and ball region

    通過試驗發現，總體上變速箱輻射效率隨頻率的變化規律同簡單構件的輻射效率是一致的，但在250hz以下的低頻區域，變速箱的輻射效率大大高於任何一個經驗公式的計算結果；通過換檔試驗發現，激勵的改變對輻射效率的影響不很顯著，工程計算可以不予考慮；對于變速箱這類三個方向尺寸差別不大的結構，其輻射性質具有平板和球源的雙重特徵，輻射效率介於平板和脈動球源之間，據此提出在工程應用時可以取平板和脈動球源輻射效率的平均作為此類結構輻射效率的觀點。
  18. Numerical analysis of vibration awl sound radiation efficiency from a submerged cylindrical shell has been carried out by using fem methods, bem methods and statistical energy methods

    摘要利用有限元、邊界元和統計能量分析方法並結合軟體對圓柱殼體在流場中受激振動及聲輻射效率作了數值計算分析研究。
  19. The optional dimention of cfa is determined through simulation in cst mws with maximum radiation efficency ( including port absorb efficiency ) of antenna

    在cstmws中以天線的輻射效率（包括埠吸收效率）最大為準則，確定cfa的最佳尺寸。
  20. Finally applies this structure in antenna, and gives a example of rectangular patch antenna. from the example, it can be observed that the high impedance surface can restrain the backwards radiation. 2

    最後將這種高阻抗表面運用到天線上，給出了一個矩形貼片天線的模擬例子，從中觀察到了高阻抗表面能抑制後向輻射，增強輻射效率的作用。
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