非穩定問題 的英文怎麼說

中文拼音 [fēiwěndìngwèntí]
非穩定問題 英文
transient problem
  • 非 : Ⅰ名詞1 （錯誤） mistake; wrong; errors 2 （指非洲） short for africa 3 （姓氏） a surname Ⅱ動詞1 ...
  • 穩 : 形容詞1 （穩定; 穩當） steady; stable; firm 2 （穩重） steady; staid; sedate 3 （穩妥） sure; rel...
  • 定 : Ⅰ形容詞1 （平靜; 穩定） calm; stable 2 （已經確定的; 不改變的） fixed; settled; established Ⅱ動詞...
  • 問 : Ⅰ動詞1 （請人解答） ask; inquire 2 （詢問; 慰問） question; ask about [after]; inquire about [aft...
  • 題 : Ⅰ名詞1. （題目） subject; title; topic; problem 2. （姓氏） a surname Ⅱ動詞（寫上） inscribe; write
  • 穩定 : 1 （使穩定） stabilize; steady 2 （穩固安定） stable; steady 3 （物質的性能不易改變的作用） stabi...
  • 問題 : 1 （需回答的題目） question; problem 2 （需研究解決的矛盾等） problem; matter 3 （事故或意外） tr...
  1. With the fourier series technique, the disturbance is discomposed into predominant mode and high frequency harmonics. the nonlinear stability of three - dimensional disturbances for the blasius boundary layers is studied

    藉助fourier級數的方法將擾動波分解為基本模態和高頻模態，研究了三維擾動的非線性邊界層穩定性問題。
  2. Secondly, nonlinear threshold of two - dimensional rt instability was analyzed in planar and cylindrical and spherical geometries. density amplitude was defined relating to instable interface and formulae of nonlinear threshold values for rt instability in three geometries were given, then the lared - s code was used to simulate two - dimensional rt instability in three geometries and simulation results agreed well with the formulae

    其次，討論了二維平面、柱和球幾何中rt不穩定性發生非線性偏離的閾值問題，給出了三種幾何中密度擾動振幅的非線性閉值公式，並且用lared一s程序進行了檢驗，計算結果表明柱和球幾何中的模藕合機制與平面幾何不同，存在幾何效應的影響。
  3. The second section : under the conditions of nonlinear boundary controbility, we consider the initial boundary value problem of camassa - holm equations with dissipative. by using the contractive mapping fixed point theorem and a priori estimates, the existence of global smooth s olution, global attractor in h ~ ( 2 ), t ime p eriodic s olution or almost - periodic solution and the global exponential stability are proved

    第二部分：在非線性控制邊界條件之下，對于帶耗散項的camassa ? holm方程的初邊值問題，用壓縮映射不動點原理及先驗估計方法，證明了整體光滑解的存在性、整體解的指數穩定性、 h ~ 2空間中整體吸引子的存在性以及時間周期解和殆時間周期解的存在性。
  4. Following the linear analysis, a new nonlinear theory for curved members with i - shaped sections is presented according to the theory of finite deformation, in which the effect of transverse stress is also incorporated

    在線性分析的基礎上，依據有限變形理論，建立了工字形曲梁涉及穩定問題的非線性理論，其中考慮了橫向正應力的影響。
  5. In this paper, we studied the deterministic mechanism of isi with the unstable period orbit ( upo ) ; we tested many isi data from different model with the method of approximate entropy ( apen ) to study the method which is used in testing the degree of complicacy of isi and we built up a system including hardware and software for our lab to view and record action potential, firing frequency and isi in real time. results 1. spontaneous firing patterns were observed from neurons of supraoptic nucleus ( son ) in hypothalamus with the method of patch clamp

    本研究通過對大鼠視上核神經元自發放電的非穩定周期軌道的計算，討論了isi的確定性問題；利用近似熵的方法對多種神經放電的isi資料進行了復雜度的測量，討論了這種方法在isi的復雜度測量第四軍醫大學碩士論文中的應用；另外，還開發出一套記錄原始放電和isi的程序，解決了採集isi的問題。
  6. This paper studies nonlinear dynamic problems of tall building structures, first, constitutes linear dynamic equation and elasto - plastic dynamic equation of structure by using qr method, later, solves the dynamic equation by using spline unconditional stable algorithm, last, programs corresponding computer programs with c program language, and calculates some example and a tall building in constructing the courses and the results prove that qr method is not only simple in calculating and fast in constringency rate, but also precise, that qr method is a effective and economic new method

    本文研究高層建築結構彈塑性動力問題，先利用qr法建立了結構線性動力方程及彈塑性動力方程，然後利用樣條無條件穩定演算法求解了動力方程，最後利用c語言編寫了相應的計算程序，計算了一些例題和分析了一個工程實例。 qr法在理論上及方法上不用有限元法及流動法則，避免了這些傳統方法在分析非線性問題時所帶來巨大困難的缺陷。計算結果表明，這種方法不僅計算簡便，而且精度高，收斂速度快，是一種經濟有效的新方法。
  7. In order to solve the static, dynamic and material nonlinear problems of mega - frame structure, this paper analyzes mega - frame structure by qr - method and sets up a new computational form. in this paper, the author adopts the method of repeated increment and no limit stabilization to handle t he elastic - plastic rigid equation and dynamic equation

    然後，利用qr法對巨型框架結構進行分析，解決該結構的靜力、動力及材料非線性問題，利用增量迭代法及樣條無條件穩定演算法分別求解彈塑性剛度方程及動力方程，建立了高層巨型框架結構分析的新的計算格式。
  8. Problem set 2 : continuum approximations of non - stationary random walks, random walk in a harmonic well, steps with fat tails, saddle - point asymptotics

    問題2 ：非穩定型隨機漫步的連續極限，具調合井的隨機漫步，具備巨大尾部的漫步，鞍點近似解。
  9. The stability of the landslide is a critical problem for feasibility of the project, and has a direct influence upon the operation of the lower reservoir and the power system. the sliding mass has been studied by some designer in geological investigation. the study showed that guishan sliding mass is in stabilization under natural condition, is not in stabilization under vii earthquake intensity

    在前期的研究中曾對滑坡體的穩定問題進行了研究，研究結果認為從宏觀定性分析，滑體處于穩定狀態，但經過計算，在度地震烈度下，處于極限平衡或不穩定狀態，為確保工程安全，對推動式的龜山滑坡體採取削坡減載的開挖方式將是行之有效的方案，這樣可以提高滑坡體在地震條件下的穩定性，因此，研究龜山滑坡體在不同開挖方式方案條件下的穩定性問題具有非常重要的實際意義。
  10. In the forth chapter, which is the kernel of this paper and embodies innovation of the paper ' s work, it introduces the two kinds stability problems, discusses the first stability problem and the second stability problem, puts forward the solving method, and leads nonlinear influence into the stability problems

    第4章是本文研究的核心部分，介紹高墩大跨梁橋的兩類穩定問題，論述了第一類穩定問題和第二類穩定問題，並提出其求解方法，將非線性影響引入穩定問題。
  11. Considering the shear strenth of unsaturated soil, the method of analysis of limit equilibrium has been approved and it can be used in the analysis of the stability of saturated - unsaturated slopes

    在考慮非飽和區土體抗剪能力的情況下，對傳統的邊坡極限平衡分析方法作了改進，使之可應用與飽和?非飽和區土體的邊坡穩定問題。
  12. Transforming the problem of robust hurwitz and schur stability of interval system into checking the nonsingularity of a set of uncertain matrices, then establish necessary and sufficient conditions for the robust hurwitz and the robust schur stability of interval system base on - analysis. 3. a new sufficient lmi condition for the robust stability is established with respect to polytopic uncertainty

    把區間系統等價轉換為一參數擾動矩陣集，利用這個轉換我們把連續區間系統的魯棒hurwtiz穩定和離散區間系統的魯棒schur穩定的等價於一參數擾動矩陣集的魯棒非奇異問題，然後利用結構奇異值的定義，給出區間系統的魯棒hurwtiz穩定和魯棒schur穩定的結構奇異值的充分必要條件。
  13. Based on the theories of the nonlinear finite element, the stability of the complex slope is discussed in this thesis

    本文以非線性有限元理論為基礎，研究了復雜土坡的非線性穩定問題。
  14. Problems of nonlinear computational instability in evolution equations

    發展方程的非線性計算不穩定問題
  15. In the first chapter, the history and present situations, the new results and the existing questions of researchs on unsteady well flow problems are introducted. further more, the questions to be researched in this thesis are outlined. in the second chapter, the specific discharges, the drawdowns and the well functions are derived on two - regime well flow problems about two kinds of common seepage laws

    （五）結論在第一章中，詳細地介紹了地下水非穩定井流問題研究的歷史與現狀，總結了前人在地下水滲流規律研究方面得到的一些結果，客觀地分析了目前線性與非線性兩種流態並存區域上非穩定井流問題解析解的研究成果及存在的問題，並確定了本論文所要研究的問題。
  16. In this dissertation, the nonlinear filter methods are deeply studied on theory and application for the attitude estimation from vector observations of the three - axis stabilized satellite attitude measurement system. furthermore, for the shortages in extended kalman filter, several improved schemes are presented

    本文針對基於矢量觀測的三軸穩定對地定向衛星的姿態確定問題，從理論和應用兩個方面對衛星姿態確定的非線性濾波技術作了深入和細致的研究。
  17. 4 considering a class of uncertain lur ' e singular system with time - delays, the problem of robust stability is investigated based on barbalat ' s lemma and nonsingular linear transformation of model reduction. furthermore, the approach of design of robust h # state feedback controller is also introduced

    4 、針對一類不確定lur 』 e奇異時滯系統，基於barbalat引理以及非奇異降階變換，討論了lur 』 e奇異時滯系統的魯棒穩定問題，提出了魯棒h _狀態浙江大學博士學位論文反饋控制器的設計方法。
  18. Many difficulties exist in the development process of agriculture economy nowadays, and it appears an unsteady state in development. agriculture cannot play its basic role before solving these problems and dispelling the unsteady state

    解決農業經濟發展中存在的問題，消除農業經濟發展的非穩定狀態，是充分發揮農業基礎性作用的前提。
  19. Geometric nonlinear behaviors in large span cable - stayed bridges have been analyzed in this paper, which include the sag of inclined cable stays caused by their own dead weight ; the interaction of large bending and axial deformation in bending members ; and the large displacements effects. then analyzing theories and researching levels of geometric nonlinear problems of modern cable - stayed bridges have summarized. and methods of modeling cable - stayed bridges for nonlinear finite element analysis have been discussed, which are the equivalent modulus of elasticity, introducing stability functions and continuously modifying geometry of structure

    本文分析了大跨徑斜拉橋幾何非線性的主要影響因素，包括斜拉索的垂度效應、彎矩與軸向力組合效應和大變形效應，同時對目前斜拉橋幾何非線性問題的分析理論和研究水平進行了綜述，相應討論了各非線性影響因素的處理方法，即分別採用等效彈性模量法、引入穩定性函數和實時修正結構的幾何位置。
  20. By using the artificial neural network method, which can deal with nonlinear problem, a systematic surrounding rock stability classfication evaluation method is constructed in this paper

    本文從人工神經網路方法出發，利用其處理非線性問題能力強的特點，建立一種較系統的圍巖穩定性分類評價方法。
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