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- Long long ago, we knew the periodic motion of a planet. 很久以前, 我們就知道行星的周期運動(dòng)。
- The computation of lyapunov exponent with different parameters shows that there were double periodic, almost periodic and chaotic motion behavior in this system. 通過(guò)對系統李雅普諾夫指數的計算，發(fā)現了該系統存在倍周期、概周期運動(dòng)以及混沌運動(dòng)現象。
- Existence of almost periodic solutions for a class of pendular equations. 一類(lèi)擺動(dòng)方程概周期解的存在性。
- The harmonic oscillator is an exceptionally important example of periodic motion. 諧振子在周期運動(dòng)中是特別重要的。
- A small periodic motion of the celestial pole of Earth with respect to the pole of the ecliptic. 章動(dòng)地球天極就黃道極而言的小的周期性轉動(dòng)
- It can be seen that a study of periodic motion will lay the foundation for future work in many different fields of physics. 由此可見(jiàn)，周期運動(dòng)的研究，是研究物理學(xué)各個(gè)領(lǐng)域的基
- By using properties of scalar almost periodic function, properties of uniform almost periodic matrix function are discussed. 摘要利用純量概周期函數性質(zhì)討論了一致概周期矩陣函數的一些性質(zhì)。
- W.Hai, Y.Duan, L.Pan. An analytical study for controlling unstable periodic motion in magneto-elastic chaos[J]. Phys. Lett., 1997,A234:198. 海文華;段宜武;朱熙文等.;控制離子云混沌運動(dòng)中的不穩定性[J]
- Since H. Bohr proposed the theory of almost periodic function, this field has been developed greatly. Bohr提出概周期函數理論以來(lái);這一領(lǐng)域得到了很大的發(fā)展;其發(fā)展過(guò)程的一個(gè)主要特點(diǎn)就是其函數范圍不斷擴大.
- Periodic motion is motion in which the position(s) of the system are expressible as periodic functions, all with the same period. 周期性運動(dòng) 是系統的運動(dòng)位置呈現周期性的運動(dòng)。
- The authors investigate the Fourier series of Weyl almost periodic functions by the new definition and prove the Parseval's equality. 通過(guò)新形式的定義研究范爾概周期函數的傅立葉級數和帕塞瓦爾等式。
- A nonlinear Volterra integrodifferential equation is investigated. The existence and uniqueness of almost periodic solutions for the equation is obtained. 研究非線(xiàn)性Volterra方程概周期解,得到方程存在唯一概周期解的一組充分條件。
- Using the method of topological degree, we prove the existences of positive almost periodic solutions for a generalizaed infectious diseases model equation. 摘要給出推廣的傳染病方程正概周期解存在的一個(gè)定理，并用拓撲度方法給出簡(jiǎn)潔的證明。
- Another definition of Weyl almost periodic functions is introduced by using trigonometric polynomial. it is proven that the equivalence of these two definitions. 摘要利用三角多項式給出范爾概周期函數新形式的定義，并證明兩個(gè)定義方式的等價(jià)性。
- Robust periodic motion control of the mover of a permanent magnet (PM) linear synchronous motor (LSM) drive is achieved by use of a recurrent neural network (RNN) controller in this study. 摘要本研究利用遞迴式類(lèi)神經(jīng)網(wǎng)路控制器來(lái)達成永磁線(xiàn)型同步馬達動(dòng)子位置之周期性運動(dòng)的強健性控制。
- The numerical results show that the time domain response of the laminated plates induced by the in-line force of non-steady component oscillating flow is similar to harmonic motion with certain ribbon which is formed by period motion. 計算結果表明，零均值流量脈動(dòng)流順流向作用力誘發(fā)反對稱(chēng)角鋪設層合板的時(shí)域響應近似于具有一定帶寬的諧波運動(dòng)，而這一帶寬又是由一定周期運動(dòng)形成的。
- We present existence theorem for pseudo almost periodic solutions with piecewise constant argument by means of unique decomposite character and for pseudo almost periodic sequence solutions of relevent difference equations. 摘要利用偽概周期函數唯一分解性質(zhì)，研究相關(guān)差分方程的偽概周期序列解，并以此為工具得出一類(lèi)帶逐段常變量微分方程偽概周期解的存在唯一性。
- We studied the periodic motions due to the nonlinear resonances of D-C and C-N stretches of DCN molecule. 我們對氰化氘（DCN）振動(dòng)體系的非線(xiàn)性效應引致周期軌跡的過(guò)程進(jìn)行詳細的研究。
- The results of Berger and Chen are extended. And the variational method is proved to be available to solve the existence and uniqueness of the almost periodic solutions of nonlinear Duffing equations with damping. 推廣了Berger和Chen的結果,證明了經(jīng)典的變分方法對于解決帶阻尼的非線(xiàn)性Duffing方程有界解的存在唯一性問(wèn)題是同樣適用的。
- The present paper is concerned with the module containment of almost periodic solution for a nonautonomous, singularly perturbed differential equations with piecewise constant argument. 提示：該介紹信息是由機器自動(dòng)翻譯完成，我們不保證機器翻譯的正確度，也不對由于內容的誤譯或者客戶(hù)對它的錯誤使用所引起的任何直接的,或間接的可能的問(wèn)題負責。
