Xem 1-20 trên 351 kết quả Oscillations
  • Tham khảo tài liệu 'oscillating cam mechanism', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

    pdf38p nguyenphuong_28 29-04-2010 186 96   Download

  • Tham khảo tài liệu 'chapter 13: sine wave oscillator circuits.', kỹ thuật - công nghệ, điện - điện tử phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

    pdf16p xinpha 06-10-2011 46 5   Download

  • Tham khảo tài liệu 'chapter 14: nonsinusoidal oscillators', kỹ thuật - công nghệ, điện - điện tử phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

    pdf19p xinpha 06-10-2011 46 5   Download

  • On the Oscillation, the Convergence, and the Boundedness of Solutions for a Neutral Difference Equation In this paper, the oscillation, convergence and boundedness for neutral difference equations $$\Delta(x_n + \delta_nx_{n-\tau}) + \sum_{i = 1}^r\alpha_i(n)F(x_{n-m_i})=0, \quad n = 0, 1, \cdots$$ are investigated. Keywork: Neutral difference equation, oscillation, nonoscillation, convergence, boundedness.

    pdf8p tuanlocmuido 19-12-2012 29 2   Download

  • The oscillation and convergence of the solutions of neutral difference equation r ∆(xn + δxn−τ ) + i=1 αi (n)F (xn−mi ) = 0, n = 0, 1, · · · are investigated, where mi ∈ N0 , ∀i = 1, r and F is a function mapping R to R. Keyworks: Neutral difference equation, oscillation, nonoscillation, convergence.

    pdf11p tuanlocmuido 19-12-2012 34 2   Download

  • Entrained oscillations in Ca 2+ underlie many biological pacemaking phe-nomena. In this article, we review a long-range signaling mechanism in smooth muscle that results in global outcomes of local interactions. Our results are derived from studies of the following: (a) slow-wave depolariza-tions that underlie rhythmic contractions of gastric smooth muscle;

    pdf8p mobifone23 18-01-2013 34 2   Download

  • Ứng dụng Momentum, đo lường Momentum, đà tăng trưởng, sự cần thiết của đường biên trên và biên dưới, xây dựng chỉ số dao động Oscillaor bằng 2 đường di động,... là những nội dung chính trong bài giảng "Chỉ số Oscillator". Mời các bạn cùng tham khảo.

    ppt43p phamxuanuhng 17-10-2015 31 2   Download

  • Agenda: Positive feedback oscillator concepts, negative resistance oscillator concepts (typically employed for RF oscillator), equivalence between positive feedback and negative resistance oscillator theory, oscillator start-up requirement and transient, oscillator design - Making an amplifier circuit unstable, constant |Γ1| circle, fixed frequency oscillator design, voltage-controlled oscillator design.

    pdf49p bko123 19-02-2017 45 1   Download

  • A new approach to the theory of hierarchic wave-oscillation dynamic systems. A set of new ideas and concepts (which the authors treat as a new version of the theory of hierarchic dynamic systems) are set forth in the article. In turn, the set of hierarchic principles is put in the methodogical basis of this theory.

    pdf10p dangthitrangtrang 07-05-2018 32 1   Download

  • In this paper, the author goes into the analysis of determining the quantities, giving the block diagram, programming and applying calculation of the free oscillation frequency level 1, 2 to a particular tugboat of 440kW.

    pdf6p viboruto2711 16-05-2019 19 1   Download

  • The main purpose of this paper is to find the homogenized equation and the associate continuity conditions in the explicit form of a boundary-value problem in a twodimensional domain with an interface oscillating rapidly between two concentric ellipses. This boundary-value problem originates from various problems in practical applications.

    pdf9p thienthanquydu 17-10-2018 14 0   Download

  • Thia paper presents our research on the interaction between no linear oscillations, Van-der-Pol's systems subjected to complicated excitations ancl quasilinear o::;cillations in systems with large static deflections [1-4]. It is well known that there is always an interaction of some kind between nonlinear oscillations, namely, between the forced, parametric and self-excited oscillators.

    pdf9p thienthanquydu 21-10-2018 13 0   Download

  • In the first case, equations of the first approximation are obtained by means of the Krylov-Bogoliubov-Mitropolskii technique, their averaging is performed, frequencyamplitude and resonance curves are studied, on the stability of the given system is considered. In the second case, the possibility of chaotic behavior in a deterministic system of oscillator type is shown.

    pdf13p thienthanquydu 21-10-2018 16 0   Download

  • The influence of the exciting force to resonant characteristics in a model of the small oscillation is investigated. Averaging method is used to determine resonant stationary solutions of all possible resonant oscillations and their stability. The numerical simulations used for oscillations in time domain and the analytic approaches give consistent results.

    pdf11p chikychiky 26-10-2018 12 0   Download

  • In this paper results of a numerical model, based on the TIDEFLOW-2D Software, for the tidal oscillation and current in the Gulf of Tonkin (GT) are presented . The model was tested as follows: i) the observed values of the four main tidal constituents M2 , S2, K i, 01 at the 44 coastal stations and islands were compared with computed ones; ii the computed tidal levels ware compared with the correlative ones in the Tide Tables.

    pdf9p chikychiky 26-10-2018 14 0   Download

  • In this paper, oscillations and stability of nonlinear oscillators with time delay are studied by means of the asymptotic method of nonlinear mechanics. Harmonic, superharmonic, subharmonic and parametric resonances of a Duffings oscillator are analyzed. Analytical method in combination with a computer is used.

    pdf14p chikychiky 27-10-2018 12 0   Download

  • The present paper is devoted to examine the interaction between parametric and forced oscillations in fundamental resonances. Some remark about the resolution of the equations determining the stationary oscillations will begiven, some particularities of the resonance curve will be described.

    pdf8p bautroibinhyen211 28-10-2018 15 0   Download

  • Parametric oscillation of the rectangular thin plate on the elastic foundation with two coefficients1 when making mention of the creep of material, has been investigated in earlier publications (see for example [2, 3]). However forced oscillation of the rectangular thin plate, to the author's knowledge, has not been hitherto examined.

    pdf7p bautroibinhyen211 28-10-2018 24 0   Download

  • The paper is concerned with the investigation of the quasiperiodic oscillations of a nonlinear dynamic system of Liapunov type with time lag. The following results are obtained: The necessary and sufficient conditions for the existence of the quasiperiodic solution describing the oscillating processes. The approximate quasiperiodic solution in the power series.

    pdf8p chikychiky 01-11-2018 16 0   Download

  • The interaction of nonlinear oscillations is an important and interesting problem, which has attracted the attention of many researchers. Minorsky N. [5] has stated "Perhaps the whole theory of nonlinear oscillations could be formed on the basis of interaction".

    pdf8p chikychiky 01-11-2018 18 0   Download




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