非暫時性的 的英文怎麼說
中文拼音 [fēizhànshíxìngde]
非暫時性的
英文
nonephemeral- 非 : Ⅰ名詞1 (錯誤) mistake; wrong; errors 2 (指非洲) short for africa 3 (姓氏) a surname Ⅱ動詞1 ...
- 暫 : Ⅰ形容詞(時間短) short; momentary Ⅱ副詞(暫時) temporarily; for the moment; for the time being
- 時 : shí]Ⅰ名1 (比較長的一段時間)time; times; days:當時at that time; in those days; 古時 ancient tim...
- 性 : Ⅰ名詞1 (性格) nature; character; disposition 2 (性能; 性質) property; quality 3 (性別) sex ...
- 的 : 4次方是 The fourth power of 2 is direction
- 暫時性 : temporal; transiency; transient; provisionality
- 暫時 : temporary; transient; for the time being
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The stability of electric power system has been being focused for a long time toprevent a power system from losing synchronism after sudden fault , researchers have done much work and got many accomplishments this paper applied the direct feedback linearization ( dfl ) technique on the power system , a strong nonlinear system simulation results by matlab proved this method efficiency main works and results are as follows : this paper compared some existing methods in excitation control , fast valve control and coordinated control respectively, analyzed the developments and actuality of nonlinear control research in brief, illustrated why ransient stability could be greatly improved by using the fast valve control in chapter 3 , indicated the importance of coordinated control farther this paper introduced the inverse system theory, based on which , discussed the dfl theory, pointed out which had consistency with the inverse theory, expanded the dfl theory combined the idiographic model equations , made which adapt to the model of a single machine - infinite bus power system this paper referenced abundance articles and educed a set of equations , which could describe the dynamical process of excitation and fast valve control for synchronous generators in the equations , there were several very important parameters of power system - - rotor angle ( ) , rotor speed ( ) , generator q axis voltage ( eq ) , transient voltage ( e ' q ) , active power ( pe ) , mechanical input power ( pm ) , valve opening ( ) , generator terminal voltage ( vt ) , based on the model , nonlinear coordinated controller and terminal voltage optimal controller have been designed by using the expanded dfl theory and lq optimal control theory the simulation results showed that the controller could keep power system transiently stable under the effects of a symmetrical 3 - phase short circuit fault , which achieved better postfault regulation compared with another two routine methods , one is the proportion excitation controller and proportion fast valve controller, the other is the proportion excitation controller and the optimal fast valve controller, which could exert good performance when met 1ittle disturbance either
在介紹逆系統理論的基礎上,詳細介紹了dfl理論,通過比較闡明了dfl理論其本質是逆系統方法的一類,並結合具體課題推導出的模型方程將dfl理論進行了擴展,使之適應于電力系統這個強非線性對象。通過參考大量的書籍文獻推導出一套實用的可將大型汽輪發電機勵磁與汽門綜合起來進行控制的模型方程,此模型方程涵蓋了電力系統中特別引人注目的幾個量- -轉子角、轉子轉速、發電機q軸電勢eq 、暫態電勢e ' q 、有功功率pe 、機械功率pm 、汽門開度、機端電壓vt ,在此基礎上建立了實用的電力系統簡化的數學模型,並將擴展的dfl理論應用於此模型系統,結合線性二次型最優控制理論設計出大型汽輪發電機的非線性綜合控制器及機端電壓最優控制器,通過模擬實驗與採用常規的按電壓偏差進行調節的比例式勵磁控制器+汽門比例控制及採用常規的按電壓偏差進行調節的比例式勵磁調節器和基於二次型性能指標設計的最優快控汽門(考慮發電機的飽和因素)進行了對比,證實了採用此種控制器可以有效地提高電力系統的暫態穩定性,並且在電力系統遭受小干擾時同樣具有良好的調節性能。In accordance to the defects presented in using the chinese road asphalt technical standards to assess the asphalt performance as well as the facts that the shrp test equipment of usa can not be widely employed in china since its being very expensive, the shrp rheological concept is utilized in the research project to carry out the exploration of the rheological properties of modified and non - modified asphalt by using conventional tests such as penetration and ductility. the conclusions obtained by using the conventional test rheological index to assess asphalt performance are compared with those by using the shrp rheological index and their certain correlation are found
針對目前我國道路石油瀝青技術標準評價瀝青路用性能存在的種種缺陷,以及美國shrp試驗設備因其昂貴性而暫時無法在國內大量推廣應用這一事實,本課題試圖利用shrp流變思想,採用針入度、延度等常規試驗設備進行改性及非改性瀝青流變特性的研究,並將常規試驗流變指標評價瀝青路用性能的結論與shrp流變指標評價結論作比較,找出它們之間的相關關系,從而肯定了採用常規試驗設備進行瀝青流變特性及路用性能研究的有效性。Occasionally they form small temporary groups made up of fewer than five adults
成年的非洲野驢偶爾也會組成暫時性的小團體,成驢的數量通常不超過五匹。The geometric explanation of the image principle presented in “ a new method to determine the transient stability boundary using nonlinear theory 1 is given. a theorem to determine the critical clearance time is derived. from the calculation results of two examples, the correctness of the theories put forward by this paper and paper 1 is verified
對論文《運用非線性系統理論確定電力系統暫態穩定域的一種新方法》 1中所提出的映射機理作了幾何解釋;提出了確定電力系統臨界切除時間的定理;通過對一簡單電力系統和電科院6機22節點算例的計算,驗證了本文及文1所提出的理論的正確性。Finally, the problem of exponential filters for nonlinear time - delayed systems is considered. the filters designed by using the given approach can guarantee the stead - state and transient performance. by choosing suitable attenuation index, the perfect performances of filters can be attained
四、研究了一類不確定非線性時滯系統的指數濾波器設計問題,提出了一種設計指數濾波器的方法,使用該方法設計的濾波器可以同時保證濾波器的穩態性能和暫態性能,通過選取濾波器的衰減指數,可以使得濾波器具有良好的衰減性能,模擬結果很好地驗證了所給出的方法。Conclusions : our findings suggest that in automobile workers, occupational noise exposure may have sustained, not transient, effects on vascular properties and also enhances the development of hypertension
結論:我們的發現支持汽車製造廠工人的職業噪音暴露對于血管特性可能有持續性而非暫時性之影響,並且也會增加發生高血壓的風險。Judging by the different magnitude and direction of the wavelet packet coefficient modular maximum, we can select the single phase - to - earth line. the method using wavelet singularity detection theory to extract the fault time is discussed. a fault distance measurement algorithm combining wavelet analysis used for separating the character from the transient fault signal with artificial neural networks used for the nonlinear approximation from the transient character to fault distance is presented
論文提出利用各個出線零序電流在頻帶上小波包系數模極大值的方向和大小的不同來實現故障選線,討論了利用小波分析的奇異性來判斷故障啟動時刻,提出將小波分析和人工神經網路結合,利用人工神經網路的非線性逼近能力,實現故障暫態量到故障距離的非線性映射,完成測距。Or, to use the language of economists, the impact of sars was a temporary demand shock rather than a permanent loss in output
又或者以經濟學家的講法,非典型肺炎的影響屬于暫時性的需求震蕩,而不是永久性的產值損失。A non - linear feed - forward loop is used to realize the coordinated control between the two controlled variables at the two control ends at first. secondly, a constant ac voltage control is implemented for a short period after the ac fault removal. finally, a staggered recovery strategy for different hvdc subsystems is also adopted, with the restart time interval of them optimized using the steepest descent gradient search method
該協調恢復策略的三個特點是:在常規的控制器結構中加入一個基於準穩態工作點的非線性前饋迴路;在交流故障被切除后的一個短暫時間內,逆變側採用定交流電壓控制:對不同的直流輸電子系統採取一種漸進的恢復策略。Article 5 a business combination under the same control is a business combination in which all of the combining enterprises are ultimately controlled by the same party or the same parties both before and after the business combination and on which the control is not temporary
第五條參與合併的企業在合併前後均受同一方或相同的多方最終控制且該控制並非暫時性的,為同一控制下的企業合併。Consolidation scope relates to the issue of accounting entity. generally speaking, companies should be consolidated into the statements as long as they control or be controlled. however, in prac
在對合併范圍分析時,具體地,我們研究了暫時性控制、削弱的控制、非相似的業務、不重要的子公司、企業集團內部交叉持股下的合併會計報表等特定情形。Under such condition, all the competition edges that enterprises always owned before such as funds, large - scale production and local government monopoly become temporary
在這種「非連貫性」新經濟環境中,企業傳統上所具備的任何競爭優勢,例如,資金優勢、規模經濟、地方政府壟斷等都只能是一時的、短暫的。At the same time, contradiction of imbalance development in different areas and demand of internal economic development effect the internal stabilization, to transfer the internal contradiction and keep internal stabilization, america think it need enemy, and regard china as it ' s main enemy after cold war. on the other hand, the contradiction between china and surrounding countries provides chance for us to combine these countries to surround china
同時對中國的合圍也是中國周邊國家對自己的國家安全進行思考後做出的戰略選擇,對中國周邊國家而言,中國是一個大國,雖然中國的國家戰略是非擴張性的,但這並不能從心吻碩士學位論文master 』 5thesis理上讓中國周邊國家有一種安全感,他們需要藉助於美國來實現其暫時的國家安全。The transient analysis and simulation studies in time - domain showed that the transient capacitance current of busbar is unable to be caught due to the limitation of the given sampling frequency, therefore the transient current singularity of the fault line and the non - fault line will approximate, which prevents to identify the fault line with the criterion calculation result of transient current protection
研究結果表明,線路出口故障時暫態電流保護完全失去選擇性的根本原因是,在給定的采樣頻率的限制下,難以捕捉到過渡過程中極其短暫的母線分佈電容中的暫態電流,從而故障線路與非故障線路暫態電流波形的奇異性相近,根據故障線路和非故障線路的暫態保護判據計算結果不能正確識別故障線路。When a non - profit foreign economic organization applies for the permission to set up its resident representative office, it may be exempt from presenting the certificate of creditworthiness required in article 3 of the " interim provisions "
非營利性外國經濟團體申請設常駐代表機構時,對《暫行規定》第三條所要求提交的資本信用證明書可以免交。Extraordinary creative activity has been characterized as revolutionary, flying in the face of what is estabished and producing not what is acceptable but what will become accepted
非凡的創造性活動通常被認為是具有叛逆性(或者說是革命性)的,它敢於公然向陳規挑戰,雖然暫時不被認可,但最終被人們普遍認同。分享友人