弱擾動 的英文怎麼說

中文拼音 [ruòrǎodòng]
弱擾動 英文
weak disturbance
  • 弱 : Ⅰ形容詞1 （氣力小; 勢力差） weak; feeble 2 （年幼） young 3 （差; 不如） inferior 4 （接在分數或...
  • 擾 : Ⅰ動詞1 （擾亂; 攪擾） harass; trouble 2 （客套話 因受人款待而表示客氣） trespass on sb s hospital...
  • 擾動 : excitation; turbulent motion; turbulence; destabilization; [物理學] perturbation motion; [地質學]...
  1. In addition, it was the sign of the initial amplitude growth rate, not the manner of the interface motion that determined whether the amplitude could increase. at weakly nonlinear stage, mode - coupling equations were derived in cylindrical and spherical geometries. it showed that the nonlinear terms were inversely proportional to the position of the interface in cylindrical and spherical geometries

    在弱非線性階段，推導了柱和球幾何中模耦合方程，結果表明：非線性作用項反比于界面的位置，界面的位置越小，非線性作用越強，反之越弱；同時柱幾何中模耦合方程的解表明，在收縮幾何中，擾動在界面兩側的發展是不對稱的，在弱非線性階段，不穩定性向內發展的部分受到慣性力的擠壓，而向外發展的部分受到慣性力的拉伸。
  2. Strongly strengthening of the low level jet and releasing of the latent heat of condensation have effect on the occurrance of the disturbance of the moist potential vorticity in low lever, which is important conditions to the genesis and development of mesoscale vortex

    低空急流的加強以及凝結潛熱的釋放均可以影響到低層濕位渦擾動的產生，從而有利於中尺度低渦的生成和發展。減弱低空急流的對比實驗證明了低空急流在對流層中低層中尺度低渦的生成和發展過程中起著關鍵性作用。
  3. The numerical results indicate that the deformation within the solid inner core is very small. however, in the fluid outer core, the changes of the displacement with relatively low spherical harmonic degree ( n < 10 ) is very complicated via the radius, due to the resonance near the eigenfrequenies of the core long - period oscillations. while the spherical harmonic degree of the loading is larger than 10, the deformation and the gravitational perturbation in the core are very small, and the earth ' s deformation response is dominantly represented as the radial displacement in the elastic mantle

    研究了地球在日月引潮力和表面負荷作用下的形變特徵，數值計算結果表明，在固體內核中的形變很小，由於在長周期核模本徵頻率附近的共振，液核中低階（ n 10 ）位移隨半徑的變化非常復雜，當負荷階數超過10時，地核中的形變和擾動位都很小，地球的響應主要表現為彈性地幔中的徑向位移，且隨深度增加急劇減弱，地表負荷love數與信號頻率的依賴關系很弱，給出了體潮love數計算的一種有效的近似處理方案。
  4. The phenomena of initial disturbance vorticity translating into spiral bands is most evidently for it locating at the periphery of radius of maximum wind ( rmw ), near rmw next and the spiral bands vanish when it is positioned in the inner core region. indicating that the farther the distance from the tc center, the more distinctly the spiral bands and the opposite is true

    初始圓形擾動渦度場轉化為螺旋臂渦量帶的現象是初始擾動位於渦旋最大風速半徑（ rmw ）外圍最顯著，其次是rmw附近，當擾動位於渦旋內核區時幾乎沒有螺旋臂結構形態出現，表明，初始擾動離tc中心越遠，其強迫渦旋rossby波形成的螺旋帶結構越明顯，反之越弱。
  5. Through analysis of potential vorticity in isobaric surface field, in low - troposphere a positive potential vorticity disturbance exist and form incline disturbance column northward before rainstorm generation, at the same time have also reflected positive potential vorticity disturbance for severe convection weather trigger role in lower - troposphere ; soon positive potential vorticity disturbance in high - troposphere downward, form one vertical disturbance column, now corresponding precipitation develop stage ; in the prosperous stage of rainstorm that maintains isolines of horizontal distribution and still have straight positive potential vorticity disturbance in 600 - 700 hpa isobaric surface field ; when near ground arises negative potential vorticity disturbance, precipitation also weaken

    通過對等壓面的位渦分析，發現了在暴雨發生前，在對流層低層有正位渦擾動存在並向北形成傾斜的擾動柱，同時也反映了對流層低層正位渦擾動對強對流天氣的觸發作用；隨后高層正位渦向下擾動，形成一個垂直擾動柱，這時對應降水的發展階段：在暴雨的鼎盛階段， 600 700hpa上空維持水平分佈的等值線，在其上還有正的位渦擾動；當近地面出現負的位渦擾動時，降水隨之也減弱。
  6. It is found that the mesoscale mountain has significant influence on the location and intensity of the heavy rain area, and the bell - mouthed area and the riverway area of xichang are favorable to the occurrence and development of mesoscale disturbance and heavy rain

    地形梯度分析表明，西昌地區所處的河谷地形和場區所處喇叭口小地形，有利於中小尺度氣壓擾動的發生、發展和暴雨的產生，當地形梯度減弱時，降水量相應減弱。
  7. When increase the amplitude of the weak psb disturbance, slug structure is formed in pipe flow firstly, this is the first transition

    當加大psb弱擾動的幅值后，流動中首先出現塞流結構，即第一次轉捩。
  8. Under the influence of the submergence the turbulence intensity are quite high at the end stage of burning. however, the turbulence intensity decreases obviously at the medium stage and the preliminary stage of burning because the flow disturbance is eliminated by the mixture of injection flow and main flow

    受噴管潛入的影響，結束時刻流場的湍流脈動非常強烈，而中間時刻和初始時刻，由於加質流與主流的強迫混合可以消除氣流擾動向下游的傳播和擴展，流場的湍流脈動明顯減弱。
  9. The new model develops the advantages of accumulation generation in the grey forecasting method, weakens the effect of stochastic - disturbing factors in original sequence, strengthens the regularity of data, and avoids the theoretical defects existing in the grey forecasting model

    新模型發揮了灰色預測方法中「累加生成」的優點，弱化了原始序列中隨機擾動因素的影響，增強了數據的規律性，同時避免了灰色預測方法及模型存在的理論缺陷。
  10. For the feedback controller design, under the condition of that the noise and disturbance had been eliminated through disturbance observer, an anti - windup state feedback controller is proposed to solve the problem in which most of the existing anti - windup schemes can not guarantee the asymptotic closed - loop stability even for open - loop stable systems subjected to actuator saturation

    對于反饋控制器設計，考慮了系統的物理約束即驅動飽和的影響，在系統的量測噪聲和外部擾動已經通過擾動觀測器減弱的條件下，提出了一種抗漂移的狀態反饋控制器設計方法。模擬結果表明所提方法的有效性。
  11. Unlike traditional differential geometrical method, the robust adaptive neural net - based control emphasizes on the theory and application of intelligence control in nonlinear system that is weighed by robust performance index. the problem of robust reliability and stability in a kind of weak nonlinear system is first proposed in the dissertation, and then it deeply analyses and discusses the problem of how to design track controller in strong nonlinear system with uncertainties and external disturbance on the premise of guaranteeing the whole system ' s robust performance index. the distributed 3d flight simulation platform is mainly used to validate real - time program and evaluate the efficiency of advanced flight control laws, therefore, some theories and techniques related to the platform are also introduced

    基於神經網路的魯棒自適應控制研究和分散式三維飛行模擬平臺的構建是本論文研究的兩個主要內容，與傳統微分幾何方法不同的是，基於神經網路的魯棒自適應控制側重於智能控制方法在以魯棒性為性能指標的非線性系統中的理論和應用研究，論文以一類弱非線性系統的魯棒可靠鎮定問題為引線，逐步深入地分析和探討了在保證整個被控系統魯棒性能指標的前提下，對于幾類具有不確定性和外部擾動的強非線性系統跟蹤控制器的設計問題；分散式三維飛行模擬平臺主要用於先進飛行控制律的實時程序驗證和效能評估之用，因此關于平臺的一些開發原理和技術方法也在文中給出了介紹。
  12. In chapter four, by using reductive perturbation technique, ion acoustic solitary wave in weakly relativistic plasmas under transverse perturbation, the propagation of solitons in an inhomogeneous dusty plasma and the modulational instability of dust - acoustic waves in warm dusty plasmas are all discussed respectively

    論文第四章分別研究了弱相對論等離子體橫向擾動下的離子聲孤波、非均勻塵埃等離子體中孤子的傳播和塵埃等離子體中塵埃聲波的調制不穩定性。
  13. For two mesoscale vortices coexisting, the disturbance outside rmw diminishes the intensifying role of near eyewall disturbance on tc intensity. the two mesoscale vortices for east - west distribution are similar to azimuthally wave number two and intensify tc more strong than other two vortices distributing and weaker than actual azimuthally wave number two waves disturbance

    雙渦分佈條件下， rmw外圍區的擾動使近眼臂區擾動對tc的加強作用減弱，東-西分佈的兩渦類似於方位2波的擾動，比其他形式分佈的對tc強度的加強作用要強，但這種類博士學位論文：地形對渦旋r 。
  14. In this paper it is proved that the invariant sets of the expansive flows with the shadowing property show the continuity with perturbation and the weakly invariant sets of c ^ 0 flows have the generic property of continuous change with perturbation

    摘要證明緊致流形上具有跟蹤性的可擴流的不變集隨擾動的連續性及c ^ 0流的弱不變集隨擾動而連續變化的通有性。
  15. The disturbance located at inner region and near eyewall intensifying corresponds to the growth of amplitude of typhoon maximum tangential velocity with shorter period and the opposite is true. the weakening role of periphery disturbance intensity drop in typhoon maximum tangential wind reduces iv rossby obviously and the mean tangential wind display a strong vibrational characteristic for the periphery disturbance intensity growth

    臺風內核區和眼壁附近擾動的減弱（加強）使臺風最大切向風速的增幅減小（增大） ，且強度增強，風速變化的震蕩性加強，震蕩的周期縮短；強度減弱，風速變化的震蕩性減弱，震蕩的周期加長。
  16. Weak as it is, the disturbance in the wind field is discernible

    該風場的擾動雖然很弱，但是還是可以看得出來。
  17. The smaller convective patch corresponds to slight changes of maximum mean wind speed and the larger convective patch corresponds to the waves amplifying, the intensity of the inward propagation of vorticity strengthening distinctly, the amplitude of velocity change increasing and the period longing

    初始擾動尺度減小，渦旋rossby波減弱，對tc強度增強作用減弱；擾動尺度增大，波動增強，向內傳播的渦量顯著增大，但轉化為渦量帶現象變化不大，風速變化的震蕩性增強。
  18. The most distinct intensification in maximum azimuthally mean tangential velocity occurs when the convective patch is positioned in rmw, the second in the interior region. this intensification exhibit distinct vibration with 6 ~ 7h period and the vibration in inner region diminishes with shorter period

    Rmw附近擾動使最大平均切向風速增大最明顯，其次是內核區，而且這種增強表現出顯著的震蕩特徵，震蕩周期約為6 7h ，內核區的震蕩較弱，震蕩周期略短。
  19. An eigenvalue - based objective function to increase the system damping is proposed. different control schemes have been proposed and tested on a weakly connected power system with different disturbances, loading conditions, and parameter variations

    文中提出了不同的控制方案，並且對設計出的各種控制方案在不同的擾動、負載和參數變化情況下在弱聯繫系統上進行了模擬試驗。
  20. When the psb amplitude is weak, a series of hair - pin vortex will be formed. the formation, diffusion, breakup of the front edge of hair - pin vortex and the break of the head of hair - pin vortex lead to the first instability and form the slug structure

    在一定幅值的psb弱擾動作用下，圓管流動中出現一系列發卡渦，發卡渦前緣處環形渦的形成、擴散和破裂以及發卡渦頭部的破碎導致了流動的第一次失穩，產生塞流結構。
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