initial stability 中文意思是什麼

initial stability 解釋
初復原性
  • initial : adj 最初的，開始的；原始的；初期的，初發的。 the initial boiling point 【化學】初餾點〈第一滴餾物...
  • stability : n. 1. 穩定，穩定性，穩度。2. （船等的）復原力。3. 鞏固；堅定，持久不變。
  1. The following are such theories and methods as nonlinear theory considering interaction between support and rock mass, which, based on quantity analysis technology and actual data of initial crust stress, can simulate complex geological condition, carven shape and supporting so that provide important reference for analysis of stability of rock mass around underground carven and design of supporting

    隨之而來的是考慮支護與圍巖共同作用的非線性理論和方法。這些理論和方法一般都以數值分析為手段，以實測地應力資料為基礎，能模擬復雜的地質條件、洞室形狀及支護措施，從而為地下洞室圍巖穩定性評價和支護設計提供重要的參考依據。
  2. The initial study to strengthen tissue engineering stand fibrin glue stability

    纖維蛋白膠穩定性的初步研究
  3. In addition, all the system states are on the sliding hyperplane at the initial instant, the reaching phase of smc is eliminated and the global robustness and stability of the closed - loop system can be guaranteed with the proposed control strategy

    此外，控制策略使得系統的初始狀態已經處于滑模面上，從而消除了滑模控制的到達階段，進而確保了閉環系統的全局魯棒性和穩定性。
  4. 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。
  5. Initial research into effect of confined aquifer on slope stability of excavation

    初探承壓含水層對基坑邊坡穩定性的影響
  6. Relating closely to the main problem of the high sidewall and wide span underground cavities excavation stability of xiluodu hydroelectric project, the evolution characters of geo - stress field in deep - cutting gorge and the whole features of the stress field, strain field and plastic failure zone around the underground chambers after excavation are studied systematically in the dissertation, based on a great deal of data gathered in field investigation and taking the flac3d v2. 0 software as basic computation tools. meanwhile, in the course of research, the new methods of dynamic numerical simulation are summarized and applied. furthermore, the effects of rock mass qualities, initial geo - stress field and excavation procedure on surrounding rock mass stability are discussed

    本文緊密結合溪洛渡水電工程大跨度、高邊墻復雜地下廠房洞室群，施工開挖過程中和開挖后圍巖穩定性研究這一重大課題，在詳盡的野外地質調查工作和對大量基礎地質資料的整理與分析基礎上，以目前國際工程地質界公認的最新通用軟體flac ~ （ 3d ） 2 . 0版作為基本計算工具，從整個壩區地應力場的研究開始，通過動態數值模擬分析這一新的模擬思路，系統地研究了深切峽谷區地應力場多階段的特徵和演變規律，進而對左、右岸地下廠房洞室群開挖全過程中圍巖應力場、變形場和塑性破壞區的變化特徵，進行了全過程動態數值模擬研究，並詳細討論了圍巖質量、初始地應力場、施工開挖順序對大型地下洞室群圍巖穩定性的影響。
  7. The stability behavior of kiewitt ' s suspen - dome was analyzed on the initial state. by the geometrical nonlinear finite element method, the equilibrium path is traced using the cylindrical arc length technology and incremental newton - raphson method. the influence of kinds of parameters is studied

    採用非線性有限元理論，結合牛頓荷載增量法和柱面弧長法的跟蹤技術，對kiewitt型弦支穹頂結構進行了考慮幾何非線性的全過程分析；為了掌握各個參數對靜力穩定性的影響程度，進行了參數分析。
  8. A new kind of generalized energy is proposed as the lyapunov function, and thereby resulting in a new criterion of generalized nonlinear symmetric stability. it shows that not only must the dissipative coefficient be greater than a certain critical value but the initial disturbance amplitude must be synchronously smaller than another marginal value as well

    從含摩擦耗散的f平面上boussinesq近似下的非線性方程組出發，提出了一種新的廣義能量作為lyapunov函數，導得了一種新的非線性對稱穩定性判據：即不僅耗散系數大於某一臨界值而且同時初始擾動振幅小於另一臨界值。
  9. At the initial stage of planar technique, b was employed as ideal diffusion impurity in base - region of npn si planar devices because of the match of its solid - solubility and diffusion coefficient in si with those of p in emission - region, and the good shield effect of sio2 film to b. but because of the relatively large solubility ( 5 1020 / cm3 at 1000 ) and the small diffusion coefficient, the linear slowly - changed distribution of acceptor b in pn junction can not be formed, which could not cater to the requirement of high - reversal - voltage devics. thereafter b - a1 paste - layer diffusion technology and close - tube ga - diffusion technology had been developed, while the former can lead to relatively large the base - region deviation and abruptly varied region in si, which caused severe decentralization of current amplification parameter, bad thermal stability and high tr ; the latter needed the relatively difficult pack technique, with poor repeatability, high rejection ratio, and poor diffusion quality and productio n efficiency

    在平面工藝初期，由於b在硅中的固溶度、擴散系數與n型發射區的磷相匹配， sio _ 2對其又有良好的掩蔽作用，早被選為npn硅平面器件的理想基區擴散源，但b在硅中的固溶度大（ 1000時達到5 10 ~ （ 20 ） ，擴散系數小， b在硅中的雜質分佈不易形成pn結中雜質的線性緩變分佈，導致器件不能滿足高反壓的要求，隨之又出現了硼鋁塗層擴散工藝和閉管擴鎵工藝，前者會引起較大的基區偏差，雜質在硅內存在突變區域，導致放大系數分散嚴重，下降時間t _ f值較高，熱穩定性差；後者需要難度較大的真空封管技術，工藝重復性差，報廢率高，在擴散質量、生產效率諸方面均不能令人滿意。
  10. In chapter two, under non - lipschitz condition, the existence and uniqueness of the solution of the second kind of bsde is researched, based on it, the stability of the solution is proved ; in chapter three, under non - lipschitz condition, the comparison theorem of the solution of the second kind of bsde is proved and using the monotone iterative technique, the existence of minimal and maximal solution is constructively proved ; in chapter four, on the base of above results, we get some results of the second kind of bsde which partly decouple with sde ( fbsde ), which include that the solution of the bsde is continuous in the initial value of sde and the application to optimal control and dynamic programming. at the end of this section, the character of the corresponding utility function has been discussed, e. g monotonicity, concavity and risk aversion ; in chapter 5, for the first land of bsde, using the monotone iterative technique, the existence of minimal and maximal solution is proved and other characters and applications to utility function are studied

    首先，第二章在非lipschitz條件下，研究了第二類方程的解的存在唯一性問題，在此基礎上，又證明了解的穩定性；第三章在非lipschitz條件下，證明了第二類bsde解的比較定理，並在此基礎上，利用單調迭代的方法，構造性證明了最大、最小解的存在性；第四章在以上的一些理論基礎之上，得到了相應的與第二類倒向隨機微分方程耦合的正倒向隨機微分方程系統的一些結果，主要包括倒向隨機微分方程的解關于正向隨機微分方程的初值是具有連續性的，得到了最優控制和動態規劃的一些結果，在這一章的最後還討論了相應的效用函數的性質，如，效用函數的單調性、凹性以及風險規避性等;第五章，針對第一類倒向隨機微分方程，運用單調迭代方法，證明了最大和最小解的存在性，並研究了解的其它性質及在效用函數上的應用。
  11. Abstract : by employing the concept of photon flux, the evolution of the phase and photon flux in the eigenmode state in three - wave mixing, and the requirements for the initial phase and photon flux in this state, are studied in the paper. a special state in which there are only exchanges of the photon flux but no phase variations in the three - wave mixing process is investigated. an all - optical switch based on the eigenmode pushpull nonlinear - optical - mirror is presented, and the properties of this all - optical switch are numerically calculated. the numerical results show that the performance stability is extremely good, and the intensity and phase of the output signal beams can be easily realized and controlled

    文摘:利用光子流概念研究了三波混頻中本徵模狀態的相位和光子流的變化，以及該狀態對光波的初始相位和初始光子流的要求，研究了三波混頻中只有光子流的交換卻沒有相位變化的特殊狀態，提出了本徵模狀態推拉式非線性光環鏡的全光開關，並數值計算了這種全光開關的性能，數值結果表明，該光開關的性能穩定性好，並且易於實現和控制輸出信號光的光強及相位
  12. There are four characteristics of the evolution of tidal creek as follows : ( 1 ) in the initial stages, tidal creek develops by continuous eroding trace to the source and depriving of the top of other tidal creeks. ( 2 ) the transverse moving of tidal creek occur mostly in the lower part, the middle part and the outlet take second place, and the upper part is more stability. ( 3 ) the different level branches of tidal creek transform into each other in the whole evolution course

    潮溝的演變具有以下特點： （ 1 ）潮溝在形成初期，不斷進行溯源侵蝕和襲奪以擴大集水面積而發展壯大， （ 2 ）潮溝的側向移動主要發生在潮溝的下段，中段和口門次之，上段最為穩定（ 3 ）不同級別的支潮溝之間處在不斷地相互轉化過程之中。
  13. In this paper, through the overall stability analysis, the flexion eigenvalue, the nonlinear overall stability factor of the perfect structure and the nonlinear overall stability factor considering the initial imperfection of the different cable form projects and the relevant single - layer spherical latticed shell were compared ; the effect of different cable form projects to the structural overall stability was obtained

    本文對選定的三個布索方案進行了整體穩定分析，比較了各方案的屈曲特徵值、完善結構的非線性整體穩定系數和考慮初始缺陷的非線性整體穩定系數，並和相應單層球面網殼做了對比，得到了布索圈數對結構整體穩定性能的影響。
  14. The application of finite element method in the stability analysis is studied, by calculate the lattice structure ’ s critical force with finite element method. the initial moment method is improved

    用有限單元法對不同腹桿布置形式的構件進行了穩定性計算，對等效慣性矩的計算公式進行了驗證。
  15. Firstly, many fixed models are modeled at different operating points through mechanism analysis. an optimal model set based on the ideal of on - line learning is proposed, which included fixed models and adaptive models. when the operating point exceeds the initial modeling range, stability results are still obtained

    首先，通過機理分析，在典型工況點下建立多個固定模型，基於在線學習器思想，給出了一種優化模型集的方法，採用固定模型加自適應模型組成新的優化模型集，在運行工況超出初始建模範圍時，仍能保證系統的穩定性。
  16. The shape of cross section of gravity dams under basic loads was optimized from an initial quadrilateral region with the stability of dam bodies against sliding and the tensile stress in dam heels taken as restraints

    以四邊形為初始域，以重力壩的穩定和壩踵拉應力為約束條件，對基本荷載作用下的重力壩基本斷面形狀進行優化。
  17. It proposed evaluation methods and evaluation guideline and standard of earm on the initial strength, workability, formed strength and water stability through a lot of experiments

    提出了earm初始強度、成型強度、水穩性的試驗方法、評價指標、技術標準與配合比設計方法。
  18. The results of aggregate distribution and stability on ferrisols used by le bissonnais ' s method suggested that, treatment method and initial size had greatly affected on aggregate stability and aggregate distribution. fast wetting ( fw ) treatment had the largest disruption while wet - stirring ( ws ) treatment had the lowest disruption

    採用lebissonnais法的三種處理方法測定富鐵土的團聚體分佈與團聚體穩定性的結果表明，濕處理后的顆粒分佈隨處理的不同以及初始團聚體的大小不同而變化很大。
  19. The fundamental failure modes of cfst arches are loss of stability and loss of material strength. the process of a cfst arch from initial loading to the arrival of ultimate load - capacity before failure is a process of complicated nonlinearity

    鋼管混凝土拱的破壞形態主要有失穩破壞和強度破壞，拱從開始加載至達到破壞前的極限承載力的過程是一個復雜的非線性過程。
  20. This paper discussed the collapse patterns of reinforced frame structures and its mechanism first, and then analyzed the movement stability of construction applying the theory of controlling blasting and dynamic ; after that the lose - stability condition of reinforced frame structures during blasting demolition was studied, a mechanical model of blasting demolition of reinforced frame structure was established ; at last this paper applied abaqus analysis software to reinforced frame structures taking lose - stability as the initial condition

    本文首先討論了框架結構建（構）築物的倒塌模式並分析了建（構）築物的倒塌機理，又運用控制爆破原理和動力學理論進行了結構體運動穩定性分析，研究了框架結構建（構）築物爆破拆除的失穩條件，建立了框架結構建（構）築物倒塌的力學模型;並以結構失穩條件為初始條件，運用abaqus軟體對框架結構建（構）築物爆破拆除倒塌過程進行了數值模擬分析。
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