small perturbations 中文意思是什麼

small perturbations 解釋
小擾蕩
  • small : adj 1 小 （opp large） 少 （opp large numerous） 細小的；窄小的；瑣細的；些微的；少額的（收入等）...
  1. Under the action of universal gravitational forces the small perturbations will grow.

    在萬有引力的作用下，小擾動會加強。
  2. In order to keep variations negligibly small, only small perturbations will be considered.

    為了使變分小到可以忽略的程度，僅考慮微小的擾動。
  3. The fact is that small density perturbations or departures from perfect homogeneity, are unavoidable in such a medium.

    小的密度擾動或對理想均勻性的偏離在這樣的物質中不可避免。
  4. Some asteroids, despite their small size, possess satellites of their own. a handful of others suffer serious perturbations by major planets and travel in highly eccentric orbits, which can send them well beyond the orbit of jupiter. the so - called near - earth asteroids cross the earth s orbit and make occasional close calls to our home planet

    有些小行星體積雖小，但竟然擁有衛星而有些小行星，由於受到其他大行星的強烈攝動，軌道為極狹長的橢圓，遠日點甚至延伸至木星的軌道以外近地小行星則會越過地球的軌道，不時在我們的庭園掠過，偷窺地球的一切，若有天真的登門造訪旄轟！
  5. Secondly, by incorporating the temporal difference prediction technique with the genetic algorithm, a novel hybrid genetic neural networks for controlling nonlinear chaotic system based on the scheme of small perturbations and the use of gradient descent learning method is presented ( known as hygann strategy )

    2 .研究了一種將暫態誤差預測技術、小擾動控制技術、梯度下降法和遺傳演算法（ ga ）融合起來控制非線性混沌系統的復合遺傳神經網路方法（簡稱hygann法） 。
  6. The author uses comparison theorem for stochastic differential equations to explore the limit behavior of one - dimentional discontinuous dynamical system with small random perturbations

    作者利用隨機微分方程的比較定理，確定間斷動力系統在小隨機擾動下的極限分佈。
  7. In this paper periodically perturbed hopf bifurcation to lienard equation with limited time delay is sdudied in detail. that is, the influence of small periodic perturbations on system exhibiting hopf bifurcation is sdudied. in particular, the excitation frequency and the critical natural frequency of hopf bifurcation in the cases of harmonic resonance. subharmonic resonance, ultraharmonic resonance, and ultrasubharmonic resonance is discussed. it is shown that in some parameter regions the sestyms exhibit harmonic solution bifurcation, subharmonic solution bifurcation, ultraharmonic solution bifurcation, ultrasubharmonic solution bifurcation and quasi - periodic solution

    本文詳細研究了具有限時滯li nard方程的周期擾動hopf分支，即在該系統經歷hopf分支時，研究小周期擾動對系統的影響，特別是討論了擾動頻率與hopf分支周期解的固有頻率在共振、次調和共振、超調和共振、超次調和共振的情形。
  8. Secondly, the response problem of a random structure under evolutionary random excitation is solved by the stochastic perturbation method combined with the unified approach. our derivation is based on the following three indispensable assumptions : 1, the random perturbations must be small fluctuations ; 2, the random parameters of the system are mutually independent ; 3, the random parameters and the random excitation are mutually independent too

    2 ）將統一解法與隨機攝動法相結合，推導中採用了三個不可或缺的假設： （ 1 ）隨機攝動是一個小量； （ 2 ）系統各個隨機參數是相互獨立的； （ 3 ）系統的隨機參數與所受的隨機激勵是統計獨立的。
  9. But adjoint method and lsv method are based on linear theory and can only describe the development of small perturbations during the validity period of tangent linear model

    在計算得到切線性模式的奇異向量后，可以用這些奇異向量構造初始誤差。線性奇異向量方法也是一種線性理論，只能描述切線性模式有效時段內小擾動的發展。
  10. Some new continuity characteristics of generalized inverses under small perturbations

    擾動后運算元廣義逆連續的新特徵
  11. What is important however in that the susceptible part of the crust can be activated with relatively small perturbations or by modification of the overall driving conditions

    然而，對于地殼這樣的易受影響的部分來說，重要的是它可以由對驅動狀態的相當小的動搖或改變來觸發。
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