近似模式 的英文怎麼說

中文拼音 [jìnsìmóshì]
近似模式 英文
approximation model
  • 近 : Ⅰ形容詞1 （空間或時間距離短） near; close 2 （接近） approaching; approximately; close to 3 （親...
  • 模 : 模名詞1. （模子） mould; pattern; matrix 2. （姓氏） a surname
  • 式 : 名詞1 （樣式） type; style 2 （格式） pattern; form 3 （儀式; 典禮） ceremony; ritual 4 （自然科...
  • 近似 : approximate; similar; approach; approximation; roughness; propinquity
  • 模式 : model; mode; pattern; type; schema
  1. Textual research proves it feasible to slice directly on 3 - d models and abnegate stl format file that is usually used in all kinds of rapid prototyping machine, it has a significantly practical value

    經過本文的研究證明了通過對三維cad模型直接進行切片處理，舍棄了stl格式文件這一目前各類激光快速成形機上通用的模型近似處理環節是完全可行的，並具有重要的實用價值。
  2. Based on the analysis of mechanism for joint region, the " frame - wall " and " aslope compression stub column " mechanical models and yielding patterns of core zone of the joints are set up. the shear load - carrying formulation for joint core zone is also given in terms of plastic ultimate analysis. and then, the comparisons between the formulas given in this paper and that of chinese design code ( draft ) and nonlinear fem as well are presented

    對節點核心區的抗剪，通過受力機理的分析，建立了鋼「框架剪力墻」加混凝土「斜壓短受力體系及其屈服機制，根據塑性極限分析，給出了節點核心區抗剪承載力計算的迭加公式， 《規程》公式和非線性有限元近似模擬分析結果進行了比較。
  3. The main contents are as follows. ( 1 ) filter cloth and the surrounding soil mass are taken as an approximate isotropy in horizontal section, the relationship of stress and strain is studied, the anisotropy is fully considered, the constitutive model of filter cloth reinforcement fly - ash compound is obtained, it is tested with numerous indoor experiments. ( 2 ) the permeable coefficient is introduced into the constitutive relationship of soil mass with relevant seepage theory ( kozeny - carman experience formula ). the test of filter cloth depositing hi the condition of long term seepage flow is done hi the dissertation, the varying regular of permeable coefficient without pressure is presented

    本文首先對國內外的研究現狀作了回顧和總結，然後主要針對土工織物加筋粉煤灰復合體的本構關系和計算理論進行研究，主要內容有： （ 1 ）將土工織物和周圍土體視為一種近似的彈性非線性橫觀各向同性體，研究它的應力應變關系，充分考慮它的各向異性，得到土工織物加筋粉煤灰復合體的本構模型，然後通過大量室內試驗進行分析驗證； （ 2 ）引入有關滲流理論，即柯茲尼-卡爾曼（ kozeny - carman ）經驗公式，將滲透系數引進到土體本構關系中。
  4. ( 4 ) on the efficient method for the dynamical core of the new generation multi - scale forecasting model i ) we present a new multi - level sparse approximate inverse preconditnioner for the complicated 3 - d helmholtz equations in the new generation weather forecasting model. as a result, the new sparse approximate inverse preconditioned gcr and gmres algorithms are given and successfully applied in the dynamical core. numerical tests show that the new algorithms perform very efficiently, and can greatly improve the efficiency of numerical model

    對此，本文提出了一種基於逐層門限技術的近似逆矩陣稀疏模式預選方法，並構造了相應的稀疏近似逆預條件子，結合gcr演算法和g州[ r衛s演算法，首次將逐層門限稀疏近似逆預條件子應用於新一代多尺度預報模式動力內核的實際計算，數值實驗表明這里給出的方法可以大大提高數值模式的計算效率。
  5. Collisonal quantum interference ( cqi ) was observed in the intramolecular rotational energy transfer in the experiment of the static cell, and the integral interference angles were measured. to observe more precise information, the experiment in the molecular beam should be taken, from which the differential interference angle can be obtained precisely. in this paper, the theoretical model of cqi is described in an atom - diatom system in the condition of the molecular beam, based on the first - born approximation of time dependent perturbation theory, taking into accounts the anisotropic lennard - jones interaction potentials. the method of observing and measuring correctly the differential interference angle is presented. the changing tendencies of the differential interference angle with the impact parameter, velocity, and et al. are discussed

    分子內部轉動傳能的靜態池實驗觀察到了碰撞量子干涉效應（ cqi ） ，並且測得積分干涉角，為了獲得更加精確的分子內部轉動傳能的碰撞量子干涉效應信息，實驗就必須要採用分子束實驗進行.本文理論上採用各項異性相互作用勢，應用含時微擾理論的一級波恩近似，假想在分子束實驗的條件下，建立在原子-雙原子分子體系中碰撞量子干涉的理論模型.理論上推導出微分干涉角具體表達式，通過計算定性地討論了微分干涉角隨著碰撞參數、速率等的變化趨勢，同時初步探討了實驗的正確觀測途徑，得出了採用分子束進行實驗觀測的實驗方法，為進一步進行分子束實驗提供了理論基礎，對實驗的進行起到了一定的借鑒作用
  6. A. teel, d. nesic etc. initially studied iss stabilization of nonlinear sample - data systems of this type in 1998. practical stabilization of nonlinear sampled - data systems based on discrete - time approximation with sufficiently small sampling periods has been studied in recent years. the sufficient conditions have been given for the practical st abilization of the above case

    第三部分：在采樣周期固定的條件下，研究基於近似離散化模型上設計的關于參數t一致的漸近穩定采樣控制器能夠以漸近穩定方式一致鎮定其連續受控系統的條件。
  7. First, the nonlinear ls problem without constraint is converted to that subjected to inequality constraints by putting constraints on the do as of the received signals and toas of the first arrived signal with geometrically based single - bounce ( gbsb ) statistical channel model and cost - 207 model. then, a penalty function is used in the estimation of ms position

    首先，用基於幾何結構的單次反射圓模型和cost - 207模型，對期望定位用戶的各條多徑信號的波達方向和最先到達多徑信號的時間進行約束，將傳統的解無約束的非線性最小二乘定位問題或近似線性最小二乘定位問題轉化為解不等式約束的非線性最小二乘定位問題；然後，用內點罰函數法估計移動臺的位置。
  8. Abstract : a new waveguide which can change the wide wall of a rectangular waveguide into a symmetric arc wall is named as a cam - rectangular waveguide. comparing to sectoral waveguide, the new waveguide has the same voltage characteristics and is easier to be produced and fixed. an approximate formula of the dominant mode fields and the normalized conductance of a longitudinal resonant slot cut in the curved wall of a cam - rectangular waveguide are given. a resonant slot linear array in c & x band is designed, in which the slot voltage distribution is equiphase and the input is matched. the input voltage stationary ware ratio and the h - plane pattern of the antenna are measured. the experimental results show the conformance with theoretical results

    文摘:把常用的矩形波導一個寬面改成圓弧形構成的波導稱為圓突-矩形波導.這種波導與扇面波導相比：電性能相當；波導管結構更加簡單，容易加工，便於安裝.文中給出圓突-矩形波導中主模場，圓曲面上縱向槽歸一化諧振電導近似公式.設計了c和x波段波導曲面縱向諧振縫隙線陣，縫隙電壓相位為同相分佈，輸入端匹配.實際測量了天線輸入端電壓駐波比和h面方向圖，理論與實驗相吻合
  9. Evading risk in financial trading market cries for pricing options to a nicety. asian option, as the most flourish options in the finace market, the pricing has been focused on always. the exact pricing formula for the geometric average asian option had existed, but as to the european - style arithmetic average asian option, due to the dependence structure between the prices of the underlying asset, no analytical formula exists. on the hypothesis that the market is frictionless and without transaction costs 、 on the base of b - s ’ s and in the binomial tree model, we provide several algorithms for computing an accurate value of the european - style arithmetic average asian option. following rogers and shi and by jensen ’ s inequality, many different upper and lower bounds are provided ; meanwhile a formula have got by the comonotonicity and approximating the distribution function. all of the algorithms are easy for programming. with the development of computer, more accurater price can be computed quickly. and numerical example proved that these algorithms are very accurate

    對于幾何平均亞式期權它的定價相對簡單，已經給出了定價公式。對于算術平均亞式期權，它的未定權益具有軌道依賴特性，一直沒有得到它的定價方程的解析解形式。本文基於對市場是無摩擦且在沒有交易費用的情況下，在b - s模型下，利用二叉樹模型給出了算術平均亞式期權定價方法;並總結了利用jensen 』 s不等式給出的各種不同情況下的上下界;同時應用共單調性和近似分佈函數的方法也給出了算術平均亞式期權價格的近似公式。
  10. In the models, the time dependent parabolic equations, deduced from the mild slope equations with currents or not, are used as the governing equations. based on the general conditions for open and fixed natural boundaries with an arbitrary reflection coefficient and phase shift, the boundary conditions for the present models are treated. the alternative direction implicit method is used to solve the governing equations and the numerical schemes are unconditional stable

    在建立模型時，將原始的橢圓型緩坡方程的近似型式? ?依賴時間變化的拋物型方程，作為控制方程；從將開邊界條件、不同反射特性的固壁邊界條件相統一的表達式出發，對邊界條件進行處理；用adi法數值求解控制方程，格式無條件穩定；節省了計算機內存和計算量。
  11. Based on the analytic analysis of the linear synchronous motor ’ s layered model, the paper deducted the composing of air gap magnetic fields and the analytic expression of levitating and advancing force. these results provide theoretic guidance not only for the analysis and measurement of the vehicle ’ s air - gap magnetic fields but also for the eatablishment of the

    採用各向異性介質近似模擬齒槽區域，並引入定子和轉子等效電流層的概念，建立了直線同步電機的磁場分層模型，在此基礎上得到了氣隙磁場的組成以及懸浮力和推力的解析表達式，為氣隙磁場的分析和測量以及列車運動情況下電磁力軟測量模型的建立提供了理論指導。
  12. The main contributions of the dissertation are as follows : on the basis of experimental results, the operational effects, such as the magnitude of magnetic field, the temperature and the rate of shear strain, on the shear stress of the mr fluid are shown and models of the quasi - bingham model and a nonlinear model for the shear stress of the mr fluid also are developed, in which the characteristic of " shear - thin " of the mr fluid is described

    論文的主要貢獻如下：通過測試磁流變液剪切應力與磁感強度、剪切應變速率、溫度的變化規律，建立了能反映磁流變液剪切變稀現象的剪切應力與剪切應變速率的磁流變液模型。根據磁流變液模型，從理論上建立了能在較寬的電壓內范圍比較準確地預報磁流變阻尼器輸出力的近似公式。
  13. 2. for the problem with size, stress and displacement constraints, the stress constraint is transformed into movable lower bounds of sizes, the displacement constraint is transformed into an approximate function which explicitly includes design variables by using mohr integral theory. a mathematical programming model of the optimization problem is set up. the dual programming of the model is approached into a quadratic programming model

    2 .對于尺寸、應力和位移約束的問題，將應力約束化為動態下限，用單位虛荷載方法將位移約束近似顯式化，構造優化問題的數學規劃模型，將其對偶規劃處理為二次規劃問題，採用lemke演算法進行求解，得到滿足尺寸、應力和位移約束條件的截面最優解。
  14. Third, the three methods including inertia ! completion, modal cost analysis and inner balanced method are researched respectively and deeply. in the case of the small damping and widely separated natural frequencies, the approximation expression of the modal cost is introduced, and the system is approximately balanced

    重點介紹了系統各階模態價值的封閉表達式和在弱阻尼、頻率足夠分開的情況下模態價值的近似計算公式；以及在弱阻尼、頻率足夠分開的情況下系統近似為內平衡，系統的奇異值也可由近似公式計算得到。
  15. At last, the valid data based fast emd algorithm was proposed. chaper five aimed to the requirement of the emd based time - frequency analysis in the field of rotating machinery signal analysis and fault diagnosis. studied the method of rotatory speed prediction to improve the precision of complete period sampling of vibration signals in rotating machinery, then, discussed the phenomenon of mode fission in noise signal anlysis by emd and provided the filter method to weaken the phenomenon. after then, found a process to analysis the signals using emd - based method in the field of rotating machinery signal analysis and fault diagnosis

    第五章針對旋轉機械信號進行emd時頻分析的要求，提出了提高整周期采樣精度的預測演算法和適合於單片機計算的近似公式；論述了模態裂解現象，並通過模擬信號和實際信號的研究，提出了使用濾波技術來減弱模態裂解現象的方法；給出了適合於旋轉機械振動信號基於emd時頻分析的工作步驟；研究了基於emd的旋轉機械振動信號自適應濾波技術。
  16. We give a mathematical proof for the model - approximately independence of anc coefficient. combining a concrete nuclear reaction, we check up the model - approximately independence of anc coefficient with numeric calculation. under the el transition condition, a expressions with anc coefficient to compute the cross section of radiative capture reaction has been given in this thesis

    我們對anc系數的近似模型無關性給出了一個數學形式理論證明，並結合具體的核反應，利用數值計算驗證了anc系數的近似模型無關性；在e1躍遷情況下，我們給出了一個用anc系數計算輻射俘獲反應截面的計算公式。
  17. Information note on the adoption of the build - operate - transfer model and its variants in developing transport infrastructures in selected places prepared by research and library services division

    由資料研究及圖書館服務部擬備有關選定地方採用建造營運移交模式及略有差異的近似模式興建運輸基礎設施的情況的資料摘要
  18. The comparing between amplitude characteristic equations deduced in this paper and the existed approximate expressions of the reflection and transmission coefficient in ti media and ava modeling has been done for different synthetic data and different theory model

    同時將本文建立的方程與現有的幾種計算橫向各向同性介質中反射、透射系數的近似公式進行了比較，對不同的理論模型和不同的地層條件進行了多波ava正演。
  19. To illustrate the superiority of this type of transition, the author adapted the local normal mode ( lnm ) based on couple - mode theory to explain the coupling between two lowest order modes along the transition. for the two important parameters, propagation constants difference between the two modes apy and mode coupling coefficient cy, which denoting power coupling between lnms, the approximation expressions using structure parameters were worked out. then the author compared three typical different transitions according to the demanding of power coupling, at last concluded that the parabolic - type transition can transport the light in shortest length with lowest loss

    對于表徵局部標準模之間功率耦合的兩個重要的參數_ （ ij ） （模式傳播常數差）和c _ （ ij ） （模式耦合系數） ，推導了用器件結構參數表達的近似公式，然後根據功率耦合的需求，在常見的三種不同輪廓的過渡區之間進行了比較，得出了拋物形輪廓過渡區能夠使光束在最短尺寸內以最低損耗通過波導的結論。
  20. In this thesis, there are three parts. first, we make the boussinesq approximation and study the effects of non - thermal wind and its spatial distribution on the superiority development of mesoscale symmetric disturbance

    主要進行了三個方面的工作：首先採用準boussinesq近似模式，研究了基流非熱成風因子及其空間分佈對中尺度對稱擾動優勢發展的影響問題。
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