振蕩方法 的英文怎麼說

中文拼音 [zhèndàngfāng]
振蕩方法 英文
oscillation method
  • : 動詞1. (搖動; 揮動) shake; flap; wield 2. (奮起) brace up; rise with force and spirit
  • : Ⅰ動詞1 (搖動; 擺動) swing; sway; wave 2 (無事走來走去; 閑逛) loaf; wander; roam; loiter; go a...
  • : Ⅰ名詞1 (方形; 方體) square 2 [數學] (乘方) involution; power 3 (方向) direction 4 (方面) ...
  • : Ⅰ名詞1 (由國家制定或認可的行為規則的總稱) law 2 (方法; 方式) way; method; mode; means 3 (標...
  • 方法 : method; means; way; technique; process; procedure; plan; device; recipe; fashion; tool; maneuver
  1. The modified method of characteristics with adjusted advection based on weno interpolation for nonlinear convection - diffusion equation

    對流擴散程的基於加權本質非插值的調整對流的修正特徵差分解
  2. A method to eliminate self - oscillation in testing hfe of low power uhf audion

    時自激的一種消除
  3. In order to verify the accuracy, credence and effectiveness of the unstructured overset grid algorithm, steady and unsteady flow field of naca0012 airfoil are simulated. the unsteady flow field is caused by the oscillation of the airfoil. the two computational results are both compatible well with the experimental data

    為了驗證非結構重疊網格的正確性、可靠性和有效性,本文對基於非結構重疊網格的naca0012翼型的定常流場以及簡諧的非定常流場進行了數值模擬,均取得了與實驗數據符合良好的結果。
  4. Surface transverse wave has the 1. 6 high frequency than rayleigh type surface acoustic wave ( using the same technology the frequency of devices of stw has about 1. 6 high frequency than rayleigh type surface acoustic wave ). the paper introduces the theory, design parament, technology and result expeiment of surface acoustic wave ( includes rayleigh surface acoustic wave and surface transverse wave, simple stw ) with low insertion loss, high q and researches the high frequency, low phase noise oscillator with 1ghz stw resonator as frequency element. and describes measurement method and finally experimantal result of the low phase noise surface acoustic wave oscillator

    本文研究了以低損耗、高q值聲表面波(其中包括聲表面瑞利波- - rayleighsurfaceacousticwave ,和聲表面橫波等)諧器的工作原理、設計參數、製作工藝及其實驗結果,並且研究了以1ghzstw諧器為頻控元件的高頻率、低相位噪聲聲表面波器,以及低相位噪聲聲表面波器的測試和最終的測試結果。
  5. 5 ) the features of the olr and velocity potential ( x ) mjo spreading eastward, northeastward ( wnp ) and southeastward ( wsp ) are researched on the climatic and interannual scale

    5 )用改進了的復經驗正交函數( ceof )分析了從赤道印度洋到西太平洋然後向正東、東北、東南三條路經上的olr及速度勢x的季內傳播特徵。
  6. Discussion of several analytical approaches and tools about subsynchronous resonance

    幾種次同步分析和工具的闡述
  7. 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,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。
  8. In this paper, high - order accurate weighted essentially non - oscillatory ( weno ) schemes are investigated and their applications in hyperbolic conservation laws are discussed. based on this, a new weno difference scheme which based on dispersion - relation - preserving relation is developed, and representative test cases with this scheme for computational aeroacoustics ( caa ) problems has been implemented and compared in order to test capability of wave capturing ; in addition, weno schemes generally do not converge at high order in the presence of contact discontinuity of euler equations, so a conservative front tracking technique coupling weno schemes and level set method to simulate the translating density profile is presented here, and numerical simulation with this technique for representative test case has been implemented and results show the desired accuracy

    本文研究了高階精度加權基本無( weno )格式及其在雙曲守恆律程中的應用,在此基礎上作了兩個面的工作:一是針對高頻聲波問題構造出一種基於保色散關系( drp )的weno有限差分格式,並對計算氣動聲學( caa )問題的代表性算例進行了大量數值實驗,比較了該格式捕捉波數的能力;另外,針對高階weno格式在處理euler程的接觸間斷時精度有所降低的問題,研究了利用界面追蹤技術levelset和高階激波捕捉weno格式相結合的一種守恆追蹤,並且給出有代表性的密度滑移面問題的算例,得到一致高階精度的數值模擬結果。
  9. " for the invention of the separated oscillatory fields method and its use in the hydrogen maser and other atomic clocks

    發明分離及其在原子鐘中的應用
  10. Aim to eliminate the influences of backlash nonlinear characteristics, a second generation adaptive pid controller based on single neuron is given. the result of simulation and the debug of actual digital servo system shows that the controller can effectively get rid of the sustained oscillation of the system caused by the backlash characteristics, and can improve the system accuracy

    隨后,採用改進型單神經元自適應pid控制器來消除間隙非線性對系統的影響,模擬結果表明所採用的能有效消除間隙特性引起的系統自,並且能夠提高系統的跟蹤精度。
  11. 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,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以檢測信號持續時間。
  12. The numerical simulation of axisymmetric two - dimensional shock tube is studied, which has a conical convergent section, and its driving gas is the hot product of hydrogen oxygen detonation. finite volume tvd scheme is adopted and the mesh is local orthogonal. the primitive equations are euler s equations of multi - component flow. the new method of eliminating numerical oscillation at the interface of two materials is extended to two dimensions. the mechanical character of this shock tube is analyzed

    對由前向爆轟產生驅動氣體並具有局部錐形收縮截面的軸對稱激波管利用兩相常比熱完全氣體的歐拉程組和有限體積tvd格式在局部正交的網格上進行了二維數值模擬。將消除兩種介質界面處數值的新成功地推廣到二維情況。分析了該激波管的力學特性。
  13. To overcome the disadvantages of pseudo - compressibility algorithm, four - order artificial dissipation term is added to the right of the differential equation, and the recommended formula is offered for the choice of the artificial dissipation coefficient

    為了克服人工可壓縮可能帶來的數值,本文在離散程的右端顯式添加四階人工耗散項,並就人工耗散系數的選取給出了推薦公式。
  14. Digital simulations reveal many valuable characteristics of the power system low frequency oscillation. the limit of conventional analysis and the appearance of new technique such as wams together with the advance of the nonlinear theory, require a new method for oscillation research of power grid, which can combine small and large disturbances analysis effectively

    論文指出,由於傳統小信號穩定分析的局限性,及動態監測設備和非線性理論等新技術與理論的迅速發展,有必要研究新的分析,以更加有效地揭示互聯系統小擾動、大擾動后的機理,並研究相應的控制策略。
  15. According to the guidline, two nd : yag lasers have been designed and set up, one is end - pumped by lower output power ld using a selfoc micro lens, and the other is end - pumped by high output power ld using a pair of lenses are designed, and the characteristics such as output power and power stabilization of both solid - state lasers are investigated. thirdly, when an empty liquid crystal cell is inserted in the cavity of the nd : yag laser pumped by high power ld, the laser can operates in single axial mode. finally, according to the relationship between the laser output power and the longnitudinal a ld - end - pumped nd : yag laser sensor for displacement measurement has been investigated theoretically and demonstrated experimently, the results indicate that when the mean radius of pumping inside the laser cavity is far less than that of the oscilating laser mode, the exponential of the output power is a gauss function of the longitudinal positon of focused spot of ld pumping beam, both the measurement range and the sensitivity are dependent on the incident pumping power, as the incident pumping power is increased, the measurement range is enlarged and the sensitivity is improve d

    本文首先介紹了ld泵浦nd : yag激光器的發展狀況、主要特性及其應用,從四能級速率程出發,推導了ld泵浦nd : yag激光器的閾值、輸出功率和斜效率的表達式,並簡述了激光器的工作原理、結構型式和倍頻;其次,以空間相關的速率程為基礎,提出了ld端面泵浦nd : yag激光器的設計,給出了一定泵浦耦合式下,光模尺寸、最佳輸出耦合率、泵浦光模尺寸、泵浦光焦斑位置等參數的選取依據,以此為依據,設計了自聚焦透鏡耦合小功率ld泵浦nd : yag激光器和透鏡組耦合高功率ld泵浦nd : yag激光器,對激光器的輸出功率和功率穩定性等特性進行了實驗研究;再次,在帶尾纖輸出的高功率ld泵浦nd : yag激光腔內插入一隻空液晶盒,觀察到了激光器以單縱模運轉;最後,根據泵浦光焦斑端面位置對激光輸出功率的影響規律,提出了ld端面泵浦nd : yag激光位移傳感新,並進行了理論和實驗研究,研究結果表明:當激光晶體內泵浦光平均光斑半徑遠小於西安理工大學碩士學位論文光束腰半徑時,激光輸出功率的自然指數與泵浦光焦斑的縱向位置成高斯變化規律,測量范圍和靈敏度依賴于泵浦功率,隨著泵浦功率的增加,測量范圍擴大,靈敏度提高,當端面泵浦功率為7 . 24w (最大輸出功率為1 . 926w )時,激光位移傳感器的測量范圍和靈敏度分別是13 . 045mm和0 . 148mw / pm 。
  16. In this dissertation, two kinds of optimization, methods are proposed. firstly, only these linking weights corresponding to the control rules that affect the control performance significantly are updated in order to reduce the compute works and speed up the training progress. secondly, the updating step is adjusted adaptively in accordance with the error and the change of error of the system based on the t - s model to get better performance

    針對模糊神經網路控制器一般存在著在線權值調整計算量大、訓練時間長、過度修正權值可能導致系統劇烈等缺點,提出了兩種模糊神經網路控制器的優化:在線自學習過程中僅對控制性能影響大的控制規則相關的權值進行修正,以減小計算量,加快訓練速度;基於t - s模糊模型,根據偏差及偏差變化率大小動態自適應調節權值修正步長,抑制控制器輸出的劇烈變化,避免系統發生劇烈
  17. Modelling method research of rlc damping - oscillatory ircuits based on matlab7

    阻尼電路建模研究
  18. Electromagnetic compatibility - part 4 - 12 : testing and measuring techniques ; oscillatory waves immunity test

    電磁兼容性.第4 - 12部分:試驗和測量.波抗擾試驗
  19. Electromagnetic compatibility - part 4 : testing and measuring techniques - section 12 : oscillatory waves immunity test ; basic emc publication

    電磁兼容性.第4部分:試驗和測量.第12節:波抗擾性試驗.基本電磁性發布
  20. If you don ' t want a high bandwidth transistor to oscillate place lossy components in at least 2 of the 3 leads. ferrite beads work well

    如果你不想通過在高帶寬晶體管三個引腳中的至少兩個引腳放置損耗元件的消除。鐵氧體磁珠會起到很好的作用。
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