導出代數 的英文怎麼說

中文拼音 [dǎochūdàishǔ]
導出代數 英文
derivative algebra
  • 導 : 動詞1. （引導） lead; guide 2. （傳導） transmit; conduct 3. （開導） instruct; teach; give guidance to
  • 代 : Ⅰ動詞1 （代替） take the place of; be in place of 2 （代理） act on behalf of; acting Ⅱ名詞1 （歷...
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 導出 : leading-out; derive; derivation
  1. Based on the above, a surrogate models are built for thermal conductibility performance of sandwich panel with " v - type " folded core in this paper, and they can be optimized by multi - subject. the numerical simulation function and optimization design method in condition of lightest weight are shown in this paper

    其次，用isight軟體重新設計了40組不同構型的試驗設計點，並以此為基礎對v型褶皺芯材夾層板的熱傳導性能構建了可用的代理模型，給出了數值模擬函數和最輕重量條件下的優化設計方法。
  2. A normal transform is introduced, and there are enough much grids in the region between the critical layer and the wall, where the variation of the disturbance is the quickest. the finite - difference of governing equations with fourth - order accuracy in the normal direction is utilized in full regions including points close the wall, and is very important for accurately discreting equations. the combination of global and local methods is implemented, and a new iterative formula is derived

    對于曲線坐標系下的拋物化穩定性方程，文中發展了求解的高效數值方法:引進法向變換，使得在臨界層與壁面之間的擾動量變化最快的區域有更多的法向網格點;導出包含邊界鄰域在內的完全四階精度的法向有限差分格式，這對方程精確離散至關重要;採用全局法和局部法相結合的方法及其新的迭代公式，大大加速收斂並得到更精確的特徵值。
  3. Based on the general mathematical models of multibody system dynamics such as the kinematics models of multibody dynamical systems, the ordinary differential equation models and the differential algebraic equation models of dynamics, general forms of the sensitivity equations of the systems are deduced by using direct differentiation method and adjoint variable method

    基於通用的多體機械繫統運動學數學模型，常微分方程形式的動力學數學模型、微分/代數方程形式的動力學數學模型分別採用直接微分方法、伴隨變量方法推導出了系統的狀態靈敏度方程的通用形式。對于微分/代數形式的數學模型
  4. In section 3, i introduce a new kind of two - mode bosonic realization of su ( 1, 1 ) lie algebra, on the basis of which the two - mode su ( 1, 1 ) coherent states in the two - mode fock space are derived

    第三部分引進一種新的雙模su （ 1 ， 1 ）李代數的玻色子算符實現形式，在此基礎上導出了在雙模fock空間上的雙模su （ 1 ， 1 ）相干態。
  5. Control, if any of the data being exported comes from a member that was marked as sensitive in the source code, a warning message is displayed to the user in a message box, telling them that sensitive data is being exported and providing an opportunity to cancel the export

    控制項導出敏感狀態數據時，如果要導出的任何數據來自源代碼中標記為敏感的成員，則會在一個消息框中向用戶顯示一條警告消息，通知用戶將要導出敏感數據並提供一個機會取消導出。通過將特定成員的
  6. In fifth century kubo derived his theoretical linear formula for calculating non - local response function

    Kubo早在50年代就導出了計算非局域響應函數的線性理論公式。
  7. We have deduced the iterative formula by the theory of the dynamic system, proved that the quadratic convergence holds under the weak conditions, and done the numerical experiments

    利用動力系統理論推導出該方法的迭代公式，證明其在某些弱條件下至少是二階收斂的，最後給出了數值結果。
  8. It has been deduced that the search direction remains the same but that the step length decreases in optimizing the improved cost function with the conjugate gradient algorithm from the gradient of the cost function that the fir filter apporaches the contrary point spread function ( psf ) more, and that the estimated image is closer to the original one

    從代價函數的梯度入手推導出共軛梯度演算法，其搜索方向保持不變而搜索步長變小，使濾波系數更加退近於點擴展函數逆運算元，從而使估計圖像與原始圖像更加接近。
  9. By means of the measuring the natural frequencies of a beam on a elastic foundation together with the transfer matrix method and the computer algebraic language ， the paper deduces the high - order equation ， which contains unknown quantity of the stiffiness of supports. this method ， the validity of which has feen verified by experiments ， can be applied to identifying the foundation coefficient

    本文通過實測彈性地基梁的固有頻率，以傳遞矩陣法為基礎，利用計算機代數語言，導出以支承剛度為未知數的高次方程，從而識別出地基系數，並通過實驗驗證該方法的正確性。
  10. Expressions in three kinds of perfectly matched layer ( pml ) absorbing boundary conditions is also given. second, the numerical theories of the auxiliary fields fdtd method is studied, including the stability of the differential equations and the numerical dispersive relationship. the stability of two kinds of differential formulations and three kinds of pml is compared, using a straight method depending on the pmax - t graph

    更進一步，研究了輔助場fdtd方法的數值理論，對其微分方程、差代方程的穩定性進行了分析，比較了有耗媒質中的兩種差分格式和三種理想匹配層中的差分格式的穩定性，提出了一種通過p _ （ max ） - t曲線判定穩定性並求出穩定性條件的直觀方法，並導出了該方法的色散關系式。
  11. After giving the legendre polynomials approximation to parametric speed of the curve, the author gives the jacobi polynomials approximation to parametric speed with endpoints interpolation. from this, two algebraic offset approximation algorithms, which preserve the direction of normal, are derived

    給出了曲線參數速度的legendre多項式逼近，進一步給出了參數速度的插值區間端點的jacobi多項式逼近，由此導出了保持法矢平移方向的兩個等距代數有理逼近演算法
  12. A new computational formula to nonlinear adjustment by parameters, in consideration of the second - order terms, is derived in this paper from the precise orthogonality condition equations to nonlinear least squares by analyzing the direct solving process and iterative computing method of the linearized model

    在分析線性化的非線性參數平差的近似直接解法與迭代解法基礎上，利用非線性最小二乘的精確正交性條件方程，推導出顧及到二次項的非線性參數平差的一種新的計算公式。
  13. Using them, we divided the necklace words into 5 classes, namely : a, b, c, d and e. we also discuss a natural involution of necklace lie algebra. in section 1. 3, taking the advantage of the classification by the index arrays, pointed out the space spanned by class a, b, c respect ! vivety are subalgebras of nq

    2節中，我們對項鏈字引入左右指標數組，利用它們把項鏈李代數n _ q的基分成了a ， b ， c ， d ， e5類。我們還討論了由重箭圖自然自同構導出的李代數的一個自然的對合。在1
  14. Then, the auxiliary fields fdtd is used to the periodic structure made of dispersive material, such as the pyramid absorbers in anechoic chamber. the permittivity vs frequency property of the absorber is approached by some dispersive equation model, such as debye model and lorentz model, so the broadband response of the absorber can be gotten through one calculation

    然後將輔助場fdtd應用到色散媒質周期結構中，導出了色散媒質中的迭代式，並以暗室吸波材料陣列為例進行計算，提出用某一類型的介電常數色散函數（如debye型、 lorentz型等）來逼近材料的介電常數頻率特性的方法，從而可以對吸波材料進行一次性寬頻計算。
  15. Aim at the dtc ' s blemish mentioned above and the direction of dtc technique development, the dissertation put great emphasis on the work as follows, with an eye to exalt dtc system function : ( 1 ) a new speed - flux observer of an induction motor is proposed to enhance the accuracy of flux observing, which is an adaptive closed - loop flux observer and different from the traditions. a new adaptive speed - observation - way is deduced out according to the popov ' s stability theories ; ( 2 ) to improve the performance of dtc at low speed operation, we have to exalt the accuracy of the stator flux estimation and a new way of bp neural network based on extended pidbp algorithm is given to estimate and tune the stator resistance of an induction motor to increase the accuracy of the stator flux estimation ; ( 3 ) digital signal processor is adopted to realize digital control. an device of direct torque control system is designed for experiment using tms320lf2407 chip produced by ti company ; ( 4 ) bring up a distributed direct torque control system based on sercos bus, sercos stand for serial real time communication system agreement which is most in keeping with synchronous with moderate motor control ; ( 5 ) the basic design frame of the hardware and software of the whole control system is given here and some concrete problem in the experiments is described here in detail

    針對上面提到的直接轉矩控制的缺陷和未來直接轉矩控制技術發展方向，本論文重點做了以下幾個方面的工作，目的在於提高dtc系統的綜合性能： （ 1 ）提出一種新型的速度磁鏈觀測器，新型的速度磁鏈觀測器採用自適應閉環磁鏈觀測器代替傳統的積分器從而提高磁鏈觀測的精度，並且根據popov超穩定性理論推導出轉速的新型自適應收斂律； （ 2 ）改善系統的低速運行性能，主要從提高低速時對定子磁鏈的估計精度入手，提出了一種提高定子磁鏈觀測精度的新思路? ?利用基於bp網路增廣pidbp學習演算法來實時在線地修正定子電阻參數； （ 3 ）採用數字信號處理器dsp實現系統全數字化硬體控制，結合ti公司生產的tms320lf2407晶元，設計了直接轉矩控制系統的實驗裝置； （ 4 ）提出了基於sercos總線網路化分散式的直接轉矩控制系統， sercos （ serialrealtimecommunicationsystem ）是目前最適合同步和協調控制的串列實時通信協議； （ 5 ）基本勾勒出整個控制系統的硬體和軟體設計基本框架，詳細描述一些實驗中的具體的細節問題。
  16. In order to overcome difficulties in the recovery of historical tritium concentration in the determination of shallow groundwater age by the method of mathematical physical model, this paper, just taking the expolatianal model as the example, deduces a new formula to calculate the groundwater age based on the equation of the tritium mathematical physical and the tritium analysis results in different times

    摘要為克服應用氚同位素方法確定現代地下水年齡過程中存在的，需確定地下水系統輸入項的歷史背景濃度問題，本文根據地下水同位素數學物理方程，以全混模型為例，利用不同時期地下水同位素的測試結果，通過數學迭代運算，推導出計算現代地下水年齡的計算公式。
  17. Difference from other algebraic structures which are introduced for some logic system, implication algebra is a abstraction of one logic connective, i. e. implicative operator, and other operators in it are all introduced by implicative operator. the main results of this paper is given as the following : 1

    特別值得提出的是，與其它為研究邏輯系統而引入的代數結構不同，蘊涵代數是對一個邏輯聯結詞，即蘊涵運算元（蘊涵邏輯聯結詞）抽象而得到的，其它運算元均是由蘊涵運算元誘導而得到。
  18. The first - order perturbation method correct for forcing decoupling method based on perturbation theory is put forward to decrease error ; iii. the complex modal method is introduced into analysis of non - classical damping systems to eliminate error of forcing decoupling method, and improve the complex modal response spectrum, which can apply to design of non - classical damping systems ; iv. for exerting the energy dissipation capability of each device, a two - step optimum method, whose controlling function is extremum expectation of interbedded displacement, is put forward to optimize the number and position of device ; v. the problem of iterative method applied to analyze energy dissipation systems is indicate, and give some primary advice based on pilot study

    為改善上述缺點，本文進行了以下的研究工作：在忽略耗能器附加質量的基礎上，推導出適用於耗能減震結構的攝動法，減少振型分解法在迭代計算過程中的工作量，加快計算速度；針對運動方程的強行解耦所產生的誤差，根據攝動法原理，對其進行一階攝動修正；為消除強行解耦振型分解法用於非比例阻尼結構分析時產生的誤差，引入狀態空間對系統進行復模態分析，並改進了基於復模態理論的、適用於非比例阻尼結構設計的雙反應譜方法；對于耗能器的數量和位置優化進行了一些探討和研究。
  19. In order to analytically deduce the characteristic scaling law, we have constructed a simplified piecewise linear model that describes the characteristic phenomenon so that we can quantitatively and analytically deduce the sudden change of the rules of the fractal dimension of the strange repeller and the averaged lifetime in the region occupied by the original attractor at a critical parameter value when the repeller disappears

    為了解析地導出這種激變的特徵標度律，我們構造了一個描述這種特徵現象的簡化分段線性模型，並藉助它定量地解析描繪了當奇異排斥子在臨界參數值消失時，奇異排斥子的分數維和在原混沌吸引子區域迭代的平均生存時間的突變。
  20. Gets a collection of code attribute metadata that is included when the code is exported

    獲取導出代碼時所包括的代碼屬性元數據的集合。
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