振蕩周期 的英文怎麼說

中文拼音 [zhèndàngzhōuqī]
振蕩周期 英文
hunting period
  • 振 : 動詞1. （搖動; 揮動） shake; flap; wield 2. （奮起） brace up; rise with force and spirit
  • 蕩 : 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...
  • 周 : Ⅰ名詞1 （圈子; 周圍） circumference; periphery; circuit 2 （星期） week 3 [電學] （周波的簡稱） c...
  • 期 : 期名詞[書面語]1. （一周年） a full year; anniversary 2. （一整月） a full month
  1. Curves of the set - up and water level are offered. the water level is inverse ratio to the average depth of the sea

    從近似水位表達式可以看出，增水水位與平均水深成反比；風暴潮與天文潮的非線性相互作用出現了明顯的潮周期振蕩。
  2. During flood years, the center of negative anomaly is around ural mountains, the center of positive anomaly is around high - latitude of east asia and another negative and positive center are over okhotsk sea and the north - west pacific, respectively

    通過對夏季旱澇等級指數的morlet型和mexicanhat型小波變換分析，發現山東夏季旱澇指數主要存在著2 5年和7年左右的周期振蕩。
  3. Because the speech signal is periodicity at sonant which vocal cords surge in low frequency and similarity to white noises at surd, the pitch can be detected in traditional way through the correlation operation without the speech produce model

    在人類語音的濁音段，聲帶發生較低頻率的振蕩，語音信號呈明顯的準周期性，而在清音段，語音信號則類似於白噪聲。
  4. Still the spectrogram, in which there was exactly equal value between every frequency component, manifested the property of periodical oscillation

    頻率譜中各諧頻之間具有嚴格相等的差頻，表現出周期性振蕩的特性。
  5. 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。
  6. A high weathercock frequency is essential for the stability of the guidance loop.

    從制導迴路的穩定性角度來看，短周期振蕩頻率高是基本的。
  7. It has been shown that : with the increase of the kerr medium intensity parameter u, the rabi oscillation extent of the mean photon number decrease and the rabi oscillation frequency becomes rapid, the antibunching effect becomes strengthened ; with the increase of n, the interaction between the field and atoms gradually becomes weak, however, the interaction between the field and the kerr medium gradually becomes strengthened and happen in advance ; with the increase of the coupling constants of two atoms, the rabi oscillation extent of the mean photon number decrease and the rabi oscillation frequency becomes rapid too, the antibunching effect becomes weak

    結果表明：隨著值的增加，光子統計演化曲線的rabi振蕩的幅度減小，振蕩頻率變快，系統的反聚束效應增強；隨著初始場強（ ? ）的增大，場與原子的相互作用逐漸減弱，而與介質的相互作用逐漸加強並提前發生。隨著原子間耦合系數g的增大，光子統計演化曲線的rabi振蕩的幅度減小且振蕩周期縮短，同時，系統的反聚束效應減弱。
  8. 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
  9. The radiation field evolves from a steady saturation state to a limit cycle oscillation state, and eventually to chaotic oscillation state as the current increases, the region in which the field exhibits limit cycle or chaotic oscillation is called the " soft " and " hard " nonlinear regime, respectively : ( 1 ) in the " soft " nonlinear regime, the radiation field is characterized by period doubled bifurcation and the discrete power spectrum

    隨著電流的增大，輻射場經歷由穩定飽和到極限環型的周期振蕩，並最終過渡到非周期性混沌振蕩的演化過程，按其狀態可分為「軟」和「硬」兩種非線性區域： （ 1 ）在「軟」非線性區域，場的極限環振蕩態和穩定飽和態是交替出現的，其特徵是典型的倍周期分岔，輸出功率譜是分立的。
  10. This isi series oscillation has following characters : ( 1 ) long term cycle duration, whose duration of most oscillations ranged from 3 0 - 120ms, so we called it slow wave oscillation ; ( 2 ) large amplitude of oscillation, the minimum isi is about 2ms while the maximum is beyond 40ms, which suggested that the firing frequency vary from several tens to hundred hz ; ( 3 ) abrupt turn always occurs during the continuous change in isi, this turn is called inflexion temporarily

    該振蕩波有下述特徵： （ 1 ）振蕩周期較長，多數在30 ? 120s范圍，故稱慢波振蕩； （ 2 ）振蕩幅度較大，其isi振蕩最小值在zms左右，最大值可達40ms ，表明放電頻率可在幾十到幾百k范圍內變動； （ 3 ）在isi連續變化過程中往往出現突然轉折，暫稱其為拐點。
  11. The time series of temperature are expected to be the longest possible so as to examine various modes of oscillation periods

    人們希望溫度的時間系列盡可能地長，以便能研究各種波的振蕩周期。
  12. The rapid advances of laser technology in the past few decades have made the production of extremely short laser pulses, containing only a few, even only one or nearly one, cycles of optical oscillations, which led to many new questions

    隨著激光技術的快速發展，實驗中已經可以得到接近光學振蕩周期的超短激光脈沖。此類脈沖的時間和空間部分在傳輸過程中會相互耦合、相互影響，從而帶來一系列的新的傳輸效應，成為當今激光領域的一個研究熱點。
  13. The period of oscillation of qubit in a parabolic linear bound potential quantum dot

    拋物線性限制勢量子點量子比特的振蕩周期
  14. Propagation of a femtosecond laser pulse with duration of several optical periods of oscillation in a nonlinear fiber

    具有幾個光振蕩周期的飛秒激光脈沖
  15. ( 2 ) the stronger ( weaker ) the intensity of dipole or unipole forcing source and basic flow, the periods of lfo the shorter ( longer )

    （ 2 ）偶、單極強迫熱源強度和基流強度的增強（減弱） ，使得大氣低頻振蕩周期有縮短（延長）的趨勢。
  16. Taking account of the change in temperature and precipitation, it can be found that west china is becoming wanner and wetter, especially in northwest china, while northeast china and north china warmer and drier

    具有準10年振蕩周期，清楚的反映了90年代的南澇北旱形式。高原和西北西部地區的增濕明顯，而東北、華北和西北東都在減濕。
  17. 29 representative stations of northwest china are selected using eof analysis, and the detailed results of characteristics are given for temporal and space variation of interarmual change and decadal change. the main conclusions are followed : ( 1 ) the tendency of precipitation in northwest china is positive to the west of 103 e longitude and opposite to the east of it. there is a periodic oscillation of quasi - three years of precipitation and a mutation in the middle of 80s in spring precipitation of northwest china

    用eof分析方法選取西北地區29個代表站，分別對其春季和夏季近50a降水進行年際變化和年代際變化時空特徵分析，結果發現（ 1 ）西北地區近50a降水時空趨勢變化以103 e為基準線，以西為正，以東為負，並有準3a的振蕩周期， 80年代中期西北地區春季降水出現了氣候突變。
  18. Recent progress in ultrafast optics has allowed the generation of ulfcraintense light pulses comprising merely a few field oscillation cycles. the arising intensity gradient allows electrons to survive in their bound atomic state up to external field strengths many times higher than the binding coulomb field and gives rise to ion - ization rates comparable to the light frequency resulting in a significant extension of the frontiers of nonlinear optics and ( nonrelativistic ) high field physics

    隨著超快光學技術的發展，僅含幾個振蕩周期的超強脈沖已經能產生，且其強度梯度可使電子存在比庫侖束縛場高許多倍的外場產生的原子束縛態上，並產生了同光頻相差不大的電離率，從而促進了非線性光學前沿及非相對論的強場物理的延伸。
  19. The anti - rolling tanks have three types including passive anti - rolling, controlled passively anti - rolling tank and active anti - rolling tank. the controlled passively anti - rolling tank has high performance, and it can adjust the water oscillation period through the valves in the upper of side tank in order to adapt the roll period. thus the controlled passively anti - rolling has favorable effect in the any states

    其中，可控被動式減搖水艙是一種高效能的減搖水艙，它可以通過自動控制系統調節邊艙頂部的氣閥開關來調節水艙內水流振蕩周期，以適應經常變化的橫搖周期，保證在任何海浪作用下水艙都具有良好的減搖效果。
  20. The calculation of dynamic response under the loading of incident pulses with different rising - time shows that the oscillation of stress wave reflects the macro - heterogeneity of laminated materials, and that the oscillation becomes more distinct as the rising - time becomes steeper. for the periodical laminate, the oscillation period of stress wave depends on the width of each cell and the width of the whole representative cell

    針對兩種不同上升沿入射波加載時的計算表明，應力波的振蕩現象反映了材料的分層非均勻特性，上升沿越陡，振蕩越明顯；對于周期性分層材料，應力波的振蕩周期與各層的厚度以及周期性代表單元的總厚度是相關的。
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