閉波導 的英文怎麼說

中文拼音 [bìbōdǎo]
閉波導 英文
closed waveguide
  • 閉 : Ⅰ動詞1. （關; 合） close; shut 2. （堵塞不通） block up; obstruct; stop up Ⅱ名詞（姓氏） a surname
  • 波 : Ⅰ名詞1 （波浪） wave 2 [物理學] （振動傳播的過程） wave 3 （意外變化） an unexpected turn of even...
  • 導 : 動詞1. （引導） lead; guide 2. （傳導） transmit; conduct 3. （開導） instruct; teach; give guidance to
  • 波導 : [物理學] （用在微波波段傳輸電磁波的裝置） waveguide; duct
  1. Powerformer have some changes in constract with the conventional generator ， subsequently it also have some new problems in order to have an economical ， efficient ， credible development and application the structure and the philosophy of electromagnetism of powerformer will be on speaking terms changes electrical design ， magnetism design ， thermal design and structural design are have some new changes above all ， the electromagnetism parameter and the harmonic magnetomotive force of powerformer are studied in this paper first ， it mainly utilizes analytics to deduce formula of slot leakage reactance it considers three instances ， including monolayer - slot ， multilayer isometric - slot and multilayer anisometric - slot then ， the analytics and the fem are utilized to calculate slot leakage reactance of stator winding of prototype of powerformer and compare their results second ， the theory of utilitzing fem to calculate the reactance of powerformer is simply introduced ， including stable reactance ， transient and subtransient reactance specially ， the saturated influence of the stable reactance is considered then ， the results are analysed final ， it mainly introduces the influence of harmonic magnetomotive force of stator winding and analyses the harmonic magnetomotive force of stator winding then ， it mainly analyse harmonic magneto - motive force of stator winding through arranging various arrays of stator winding and observe their influence

    基於上述原因，本文對powerformer的電磁參數以及定子繞組諧波磁勢進行了研究。首先是用解析法推導出powerformer定子繞組槽漏抗的計算公式，考慮了單層圓形半閉口槽、多層等半徑圓形半閉口槽和多層不等半徑圓形半閉口槽三種情況，並對powerformer樣機的定子繞組槽漏抗用解析法和有限元法進行了計算，並比較其結果；其次，簡要介紹了有限元法計算powerformer電抗參數的原理，包括穩態電抗、瞬態電抗和超瞬態電抗，對穩態電抗考慮飽和影響，對結果進行分析；最後，介紹定子繞組諧波磁勢對電機運行性能的影響並對定子繞組諧波磁勢進行了分析。然後通過對定子繞組進行不同排列來分析定子繞組諧波磁勢，看看繞組排列對諧波磁勢的影響。
  2. Interior of the country, a great number of famous groups were threatened by the marketing crisis and marketing failure. as " juren group " fell down, " taiyangshen group " went down, " feilong group " hit the ground and many advertising kings broke down, some of the excellent companies, which had ever presented the market trend, are now sinking into the condemn of general debility or even bankruptcy. since our country takes part in the wto, the competition will turn from the domestic, partial, un - integrate one to the one of international and overall

    上個世紀末波及全球的東南亞金融危機，造成東南亞地區的經濟倒退、企業倒閉；在國內， 「巨人」倒下、 「太陽神」下山、 「飛龍」落地、 「標王」破產，一大批知名企業被營銷危機和營銷失敗籠罩，過去曾是領導市場潮流風雲企業，而現在卻陷入虧損甚至破產的困境；隨著我國wto的加入，國內競爭逐步發展為國際的競爭，競爭日漸激烈，市場的競爭將由國內的、局部的、不完整的競爭轉向國際化的、全方位的競爭，市場特點將由國內市場的國際化變為國際市場的國內化，更多的企業將面臨營銷失敗。
  3. A one - dimensional oceanic mixed layer model with the m - y level - 2. 5 turbulence closure schemes is employed. the rate of energy loss by breaking waves is estimated by parameterization and incorporated into the model as a source of turbulence kinetic energy ( tke ) by modifying the existing surface boundary condition of tke equation. the velocity field and turbulence energy budget are calculated under different forcing conditions ( the results given below are for a wind speed of 20 m / s. )

    採用一維2 . 5階湍封閉混合層模式，根據參數化方法對波浪破碎導致的能量耗散率進行了估計，通過改變湍動能方程的上邊界條件引入波浪破碎對湍動能生成的影響，計算了不同風應力強迫下的混合層流場結構和湍能量收支（下述給出的結果是取風速為20m s得到的） 。
  4. The key components in laser gyro is he - ne ring laser, and the reciprocal action theory between light and medium is the base in studying the ring laser, use the lamb half classical theory, and on the base of density matrix theory, the optical brounch equation was established, which described the movement of amplifying medium atom in the ring syntonic cavity, and according to the medium polarize theory the self consistent equations was deduced, which describe the light intensity and phasic of the counter - propagating wave. on the basis of this equations, adopted the simulation software matlab and virtual instrument programming language labwindows / cvi, we can do some simulated experiments in study the phenomenas such as amplify and dispersive characteristic of medium, mode pushing effection, burned hole effection and pattern competition, lock - in of frequency and the characteristic of light intensity and phasic of the counter - propagating wave in laser gyro

    激光陀螺的核心部件為he - ne環形激光器，而掌握光與介質的相互作用理論是研究激光器的關鍵，採用拉姆半經典理論為主，在密度矩陣理論的基礎上，推導環形諧振腔中描述he - ne氣體增益介質原子運動的光學布洛赫方程，運用介質極化理論得出描述激光陀螺反向行波的光強、位相所滿足的自洽場方程組，在此基礎上，運用matlab模擬軟體和虛擬儀器編程語言labwindows / cvi ，對激光陀螺中的介質增益色散特性、頻率牽引效應、燒孔效應及模競爭、閉鎖效應及環激光的光強和相位特性進行模擬試驗研究，並且運用全量子理論，對激光工作原理進行分析，得出二能級系統單模輻射場的光子數密度分佈，得出激光場的光子統計分佈，模擬激光場的動態建立過程。
  5. Measurement of liquid flow in closed conduits using transit - time ultrasonic flowmeters

    在封閉導管中用渡越時間超聲波流量計測量液體流量
  6. The algorithm of strapdown inertial navigation system is also discussed and then use the flight - track generator to give a simulation, since a closed loop feedback integrated navigation system is designed in this paper, and the output of the filter must feed back to the strapdown inertial navigation system, the analysis of the algorithm in strapdown inertial navigation system is important. the scheme to design the trajectory of gps and the simulation of gps constellation are then studied, the simulation of gps constellation is given from the calculation of vernal equinox base on the principle of celestial mechanics, this method of different from other methods given by other paper and is useful to the research of satellite navigation system. a new method to abstract noise modal in integrated navigation system is proved to be useful in practice, this method, which is given by use the principles of stochastic processes, statistics, time series analysis, and system identification, is suitable for the kalman filter in integrated navigation system

    如航跡產生器的設計，該航跡產生器是研究組合導航問題的前提，從國外一些研究組合導航系統的文獻中可以看出，設計這樣一個航跡產生器是非常必要的，所以本文自行設計了這樣一個系統；還討論了捷聯慣性導航系統中捷聯解算的方法，並進行了模擬研究，由於在本文設計的閉環反饋式組合導航系統中，對捷聯慣導系統的平臺誤差進行閉環控制，需要將濾波器輸出的校正量反饋到捷聯解算內部，所以必須對捷聯解算進行深入的研究和分析，更何況捷聯解算問題本身也是導航界的一個熱門研究課題；另外，本文還介紹了gps軌道及其星座模擬的設計思想和方案，與以往gps軌道和星座模擬不同的是本文從天體力學中計算春分點開始，逐步進行gps軌道及其星座模擬，這樣的設計方法對從事衛星導航的研究工作是有價值的；還對組合導航中誤差建模方法進行了研究，綜合運用隨機過程、概率統計、時序分析及系統辯識等方面的理論提出了一套適合組合導航卡爾曼濾波的誤差建模方法，並運用實際研究工作中的測量數據對該方法進行了驗證。
  7. These results are as follows. 1. the asymmetric cpw with conductor backing, the asymmetric cpw with wholly shielding and the asymmetric cpw with both finite substrate thickness and finite lateral ground planes are put forward, and the analyzing methods of these cpw ' s are presented

    本論文給出了分析該模型的保角變換方法，歸納了該模型所能演變出的共面波導種類，推導出了該模型特性參數面向cad的封閉解析表達式。
  8. In order to apply the research results of this paper to the optimum design of computer for cpw, the analytical closed - from of expressions is the best choice. so conformal mapping theories are used to analyze cpw ' s by this paper. the optimum programming, the numerical inversion of conformal transformation and the numerical predictor - corrector method have been utilized to calculate the characteristic parameters and field patterns of cpw ' s

    為了使本論文的研究成果便於應用於共面波導的計算機優化設計中，最好方法是得到封閉的解析表達式，所以本論文採用了保角變換理論宋分析非對稱共面波導，並且應用了優化計算方法、保角變換反演技術和數值預測糾正演算法對各種非對稱共面波導的特性以及場結構進行求解。
  9. With the rapid development of economic globalization, more and more international trade and transnational financial activities are undertaken, and it is recognized that the theoretical analysis of business cycle should not be done only within the framework of closed economy. under the opening economic circumstances, one country can transmit its own economic fluctuation to other countries of the rest world through trade and financial channels, in reverse, the economy of the same country would be affected seriously by other countries in the same way. consequently, it is worthwhile and of great sense to study the business cycle transmission mechanism of international trade

    隨著經濟全球化的迅猛發展，人們認識到經濟周期不應僅停留在封閉經濟條件下的理論分析，因為新形勢下各國間貿易和金融領域的頻繁交往，使一國可以通過這些途徑將本國的經濟周期波動傳遞到世界其他國家，相應地本國的經濟發展也會因外來沖擊的影響而發生波動，因此研究在開放的經濟條件下，國際貿易對一國經濟周期的傳導機制就具有了相當重要的意義。
  10. Quick closing valves, water hammer or supply pressure fluctuations can cause intermittent discharge

    迅速關閉閥門，水錘或供應壓力波動可能導致間歇性排放。
  11. , in this paper, an integrated navigation system composed of strapdown inertial navigation system ( sins ) and global positioning system ( gps ) was simulated for the purpose of testing the effect of this combination and compare the different performance of two kinds of kalman filters between the position of open loop and close loop

    本文對gps / sins的組合導航模式進行了模擬，檢驗了其組合的效果，並比較了開環與閉環卡爾曼濾波的性能差異，闡述了聯合濾波的演算法、結構與效果。
  12. The observed quantity of the sins / od is the velocity ' s differences between sins and od, and the sins / od also adopts a closed kalman filter to estimate and correct the errors

    用捷聯慣導系統解算出的速度量和里程計所測量的速度量之差作為組合導航系統卡爾曼濾波器的觀測量，利用閉環卡爾曼濾波技術進行誤差估計與校正，並給出了系統模擬結果。
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