自振狀態 的英文怎麼說

中文拼音 [zìzhènzhuàngtài]
自振狀態 英文
self-oscillating regime
  • 自 : Ⅰ代詞（自己） self; oneself; one s own Ⅱ副詞（自然;當然） certainly; of course; naturally; willin...
  • 振 : 動詞1. （搖動; 揮動） shake; flap; wield 2. （奮起） brace up; rise with force and spirit
  • 狀 : Ⅰ名詞1 （形狀） form; shape 2 （情況） state; condition; situation; circumstances 3 （陳述事件或...
  • 態 : 名詞1. （形狀; 狀態） form; condition; appearance 2. [物理學] （物質結構的狀態或階段） state 3. [語言學] （一種語法范疇） voice
  • 狀態 : status; state; condition; state of affairs: （病的）危險狀態 critical condition; 戰爭狀態 state o...
  1. Section ii describes the design approach and implementation of speech module on mcf5249 coldfire core. the speech codec optimizes g. 729a codes and added voice activity detection of g. 729b to save bandwidth ; the implementation of acoustic echo cancellation uses nlms algorithm and it can reduce echo though designing adaptive fir filter and speech detector ; the dtmf and cpt generate signal using two second order digital sinusoidal oscillators and detect signal by picking up the frequency information. but only get the frequency information is not enough in cpt detector, this thesis introduces a method

    其中對語音編解碼器的設計採用優化g . 729a代碼達到設計要求，並在此基礎上加入g . 729b的靜音檢測模塊，以進一步降低網路傳輸帶寬;對回聲消除器的設計採用nlms演算法，通過設計自適應fir濾波器和語音檢測器達到回聲消除目的;對雙音多頻設計，信號發生端採用構造靜態參數表並通過二階正弦振蕩器產生信號，信號檢測端提取頻率信息以檢測信號;對呼叫進程音設計，除了類似雙音多頻的信號發生及頻率檢測設計外，還需要檢測信號持續時間，作者設計了一種基於匹配狀態表的方法以檢測信號持續時間。
  2. Abstract : we have studied the spontaneous emission from a three - level atom with an external - driving field in a photonic crystal. as a result of quantum interference and photon localization, the population in the two upper levels displays quasi - oscillatory oroscillatory behavior. this depends on the initial atomic state and the relative positions of the two upper levels from the forbidden gap. the intensity and the phase of the external field can affect spontaneous emission from the atom. the properties are different from a three - level atom either in vacuum or in aphotonic crystal without an external driving field

    文摘:討論了在雙光子驅動場作用下，三能級原子在光子晶體中的自發發射問題.由於量子干涉和光的局域化作用，兩個上能級中的占據數將具有周期振蕩或準周期振蕩的性質，這不僅依賴于兩個上能級與禁帶的相對位置，同時也依賴于原子的初始狀態，而且還與驅動場的強度、驅動場的入射位相有關.這些性質既與真空中帶有驅動場的原子的自發發射性質不同，也有別于無驅動場作用下光子晶體中三能級原子的自發發射性質
  3. This subject is a national fund project in science : an attribute theory and method for thinking construction and memory style ( 60075016 ), and a branch fund project in development of education, science and technology of shanghai ( 01g04 ) : intelligence modeling. it is also another one of shanghai zhenhua limited liability corporation : status detection and security estimation for derrick

    本課題是國家自然科學基金項目：思維建構與記憶模式的屬性論方法（ 60075016 ）和上海市高教科技發展基金項目：思維建構與智能模擬的屬性論方法（ 01g04 ）的子課題，同時也是上海振華有限公司的項目：橋吊狀態監測與安全評估系統。
  4. Although self - syn chronous vibration and vibratory synchro nization transmission have been applied, in, mechanical engineering successfully ， the, transient processes of self - synchron ization and synchronization transmission, in vibratory machines are still obscure. the physical processes of vibratory mac hines from asynchronous condition to syn chronous condition or from one type of s ynchronous condition to another co uld not be explained quantitatively acco rding to available, mechanical models. in this paper the pro blem is addrested specially

    自同步振動和振動同步傳動在機械工程上已獲得成功應用，但是振動機械實現自同步振動和振動同步傳動的過渡過程長期以來卻一直不明確，利用現有的振動機械模型還不能定量解釋系統從不同步到同步、或是從一種同步狀態過渡到另一種同步狀態的物理過程。
  5. Dynamic tests are applied to the beams, and during the course of the dynamic testing, mode parameters were obtained under the initial state, prestressed state and different damage degrees of the beams

    振動測試分別在試驗梁的初始狀態，張拉完畢，以及各種不同的損傷狀態下進行，動力試驗數據主要包括自振頻率以及模態振型。
  6. The states of the system and their differential signals are obtained on time by tracking differentiator, and the influence induced by nonlinear periodic load disturbance is compensated adaptively

    電力系統混沌振蕩狀態和它的微分信號由微分跟隨器實時提取，並通過微分跟隨器對非線性周期性負荷擾動的影響進行自適應補償。
  7. In the double bioreactors system, a spontaneous oscillation is displayed in the first bioreactor due to a time delay ; a forced oscillation exhibits in the second bioreactor

    主要思路是設計兩個反應器串聯，使第一個反應器處于自激振蕩狀態，迫使第二個反應器產生強迫振蕩。
  8. Because the self - oscillation, the dynamic accuracy of the servo system is not only correlative with servo system parameters but also influenced by the input signal amplitude, frequency and the system self - oscillation state

    由於自振蕩狀態的存在，伺服系統的動態精度不僅與伺服系統的參數有關，還受到輸入信號幅值、頻率以及自振蕩頻率的影響。
  9. For the amplitude - frequency response at the self - oscillation frequency is one, a method to calculate the dynamic accuracy and the index of the servo system is provided, by comparing them, the scheme to design the verifying unit is presented

    利用伺服系統在自振蕩頻率點的幅頻特性為1這一特點，將輸入信號頻率、幅值、系統的自振蕩狀態和系統的參數聯系起來，構建了伺服系統動態精度的計算公式和指標估算經驗公式，並根據兩者的關系提出動態精度校正方案。
  10. According to the phinel formula, this article discusses all kinds of polarization of reflected light and refracted light during the natural light and the ray - polarized light are incident in different incident angles

    摘要依據菲涅耳公式，討論了自然光、線偏振光以不同的入射角入射時反射光和折射光的各種偏振狀態。
  11. An experimental apparatus of falling film absorption in a vacillating is set up to check the reliability of theoretical model and to have a deep understanding of heat and transfer of practical falling film absorption ; falling film absorption with tfe / nmp solution in a static vertical tube and that in a vacillating tube are investigated respectively

    為驗證理論模型的可靠性並進一步深入了解實際搖擺降膜吸收過程中熱、質傳遞規律，自建了搖擺振動單管吸收試驗臺；分別對靜止和搖擺狀態下tfe / nmp垂直管內降膜吸收進行實驗研究。
  12. Intelligent structure, an integration of sensors, actuators, microprocessors, and structural base materials together, is capable of recognizing, estimating and actuating. it can base on the characteristics of the controlled object, working environment and the control requirement, and relies on mechanics principle to reduce the harmful vibration

    可以根據結構的當前狀態和所處的工作環境，按照預先所設定的工作方式作自適應調節，通過將外部能量輸入受控結構，與結構本身的振動能量相互抵消來實現振動控制。
  13. Thirdly, subspace iterative method is adopted in the paper, and natural periods and modes of preceding fifteen steps of zhongshan no. one bridge are solved, dynamic characteristics of this kind of structural system are obtained, inherent link between dynamic characteristics and structural rigidity is discussed deep, the viewpoint is provided that dynamic characteristics of a structure are considered as important basis whether structural scheme is rational ; in addition, the author brings out some own views and opinions about calculational methods of prestress value of different sorts of tie rods, simulation of local rigidity region, foundation of a local finite element model of a node

    另外，提出在施工階段中某些構件的應力有可能比成橋狀態的應力還大，需防止在施工狀態中構件因強度不足而破壞；再次，採用于空間迭代法，求解了拱式組合體系橋梁的自振周期和振型，得出該種結構體系的動力特性，深入探討了動力特性和結構剛度之間的內在聯系，提出了把結構的動力特性作為判斷結構方案是否合理的重要依據。此外，本文還就系桿預應力值的確定方法、局部剛度區域的模擬、節點局部有限元分析提出了作者的見解和看法，對解決類似問題得出了一些有參考意義的結論。
  14. In the course of the low phase noise research, by integrating many aspects, using recent accomplishments, i come up with my method and theory, that by comprehending and controlling subcircuit of oscillator ' s resonator, can let us know exactly their working states. using this method and theory, combining the vco circuit of this subject, i deduce and demonstrate particularly the reason of low frequency oscillation, and come up with the measure of avoiding it. this makes design and producing vcos can avoid the disturbing of low frequency oscillation, and improve the features of vcos. at later process of debugging vco, using this method makes the vco achieves very good working state

    在低相噪研究中，綜合了各方面的情況，運用了當今低相噪vco的研究成果，並提出了自己的對諧振電路結構進行總體把握，從而準確得知電路的工作狀態的思想和理論。運用此方法，在論文中結合本vco電路拓撲結構，詳細推導和論證了低頻振蕩產生的原因，並提出了避免發生低頻振蕩的措施。使低相噪vco的設計及調試能免於低頻振蕩的干擾，從而有利於提高vco的各項指標。
  15. On the basis of analyzing the result of the test, we have improved the structure of the damper and revised the systematic model. we have experiments on the damper to test its damping performance. comparing with the simulation force - displacement curves, we gave an explanation of why the factual force - displacement have aberrances, which gave warrants to the parameter design and structure ' s improvement. we found the state equation of the semi - active suspension on the semi - active adaptive control strategy and use computer simulations to compare the passive suspension structure and er semi - active suspension. computer simulations indicate that er semi - active suspension have greatly improved driving smoothing and control stability. at the same time semi - active suspension is of simple structure and low cost. so in the long run, the semi - active suspensions may have wider application

    在對試驗結構進行分析的基礎上，改進了減振器的結構，修正了系統的模型；對自適應減振器性能進行了大量的測試，通過與模擬結果比較，分析了造成示功曲線局部畸變的原因，為機構及其參數設計以及改進提供了依據；基於振動半主動自適應控制策略，建立了半主動懸架系統的狀態方程，並且進行了模擬，從而得出與被動懸架結構相比，採用電流變流體減振器的半主動懸架在汽車行駛平順性和操縱穩定性上均有較大的改善，性能大為提高。
  16. This is because the frequencies of a living organism inevitably influence the subject, so the sensor has to be tuned to correspond to the frequency of the living organism. it must be set at that optimal point of complete resonance with the human body

    因為在分析的時候，人體振動的頻率難免會影響到分析的樣本，因此分析師必須將感應器的頻率調整到與自己一致的狀態，然後找出人體頻率和感應器頻率彼此共振的最佳點。
  17. In the recent years, with the development of microcomputer technology and the needs of industrial automation. we use computer to realize the control algorithm. but during the time of realizing the vsc, because of the limits of sampling, the ideal sliding mode does not exist

    近年來，隨著計算機技術的飛速發展和工業自動化領域的實際需要，控制演算法的實現經常利用數字計算機，但當採用數字計算機實現變結構控制演算法時，由於采樣過程的限制，理想的滑動模態不存在，狀態軌跡以抖振的形式沿著滑動平面運動，這是不利於工程的實際應用的。
  18. Based on the vibration model and testing data, the paper provides a systematic way to not only the choice of testing parameter but also drawing the conclusion. the paper has three parts. first, the paper discusses the vibration mechanism of slew bearing, analyzes features of vibration and signal and deduces the formula of feature frequency and inherent frequency

    本文從起重機大型回轉軸承裝置自身的結構特點出發，以結構動力學和信號分析理論為基礎，用現代機械測試與試驗技術為研究手段，從振動的角度對大型回轉軸承裝置的狀態監測與診斷進行了系統的研究。
  19. Rotating machines are popularly used in the industry world, advanced rotating machines usually have a self - diagnoses system to detect the working states of itself, and then get the best control strategy

    旋轉機械在工業控制等領域廣泛應用，國外高檔設備往往配有自振斷系統，實時監測設備運行狀態，並能夠根據設備狀態調整控制策略。
  20. Have build - in vibration sensor. when the car is driven at night, four lights will shine alternately ; and when the car stops, they will go to a stand - by situation automatically

    內置振動感應器，夜晚車行駛時4個燈交替閃爍；車靜止時，它會進入自動待機狀態
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