無導數法 的英文怎麼說

中文拼音 [wúdǎoshǔfǎ]
無導數法 英文
derivative free method
  • 無 : 無Ⅰ動詞（沒有） not have; there is not; be without Ⅱ名詞1 （沒有） nothing; nil 2 （姓氏） a surn...
  • 導 : 動詞1. （引導） lead; guide 2. （傳導） transmit; conduct 3. （開導） instruct; teach; give guidance to
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 法 : Ⅰ名詞1 （由國家制定或認可的行為規則的總稱） law 2 （方法; 方式） way; method; mode; means 3 （標...
  1. Many more criteria for the convergence of infinite series were developed by leading mathematicians.

    許多第一流的數學家推導了無窮極數收斂的很多判別法則。
  2. Firstly, in spherical coordinate system, the sovp formulation for the time - harmonic electromagnetic fields of the current dipole in conductive infinite - space is derived, using reciprocity theorem and transforming relations between special functions. then, selecting appropriate coordinate system, using superposition principle, the boundary - value problem of modified magnetic vector potential on the problem of a time - harmonic current dipole in spherical conductor is solved and analytical solution is obtained. finally, by means of the addition formulas of legendre polynomial and spherical harmonics function of degree n and order 1, the analytical solution in spherical coordinate system specially located is transformed into that in spherical coordinate system arbitrarily located

    首先利用特殊函數間的轉化關系和互易定理推導得到了無限大導體空間中球坐標下時諧電流元電磁場的二階矢量位形式：然後利用疊加原理，選擇合適坐標系，求解了導體球中時諧電流元的修正磁矢量位邊值問題，得到了問題的解析解；最後依據不同坐標系下電磁場解的轉化原理，藉助勒讓德多項式和n次1階球諧函數的加法公式，將坐標系特殊安放時的電磁場解析解變換到坐標系一般安放時的解析解，給出了球內電場和球外磁場的並矢格林函數。
  3. Second, this paper analyzes the relation of reactive support service with voltage, power limit curve, transaction amounts. according to the power limit curve, this paper analyzes the source of the reactive cost to get an interzone cost function. using marginal cost theory, it concludes that the reactive spot price is the derivative of the cost function in generator buses

    另外，本文還從發電機角度上分析了無功服務與電壓、功率限制曲線、發電機向負荷傳輸電能大小的關系；根據功率限制曲線對發電機無功成本的來源進行詳盡剖析，從理論上確定一個分區間的成本函數；並依據短期邊際成本理論可推出，計算發電機節點的電價可採用無功成本函數的偏導數的方法。
  4. Discussion on methods to do the summation infinite progression

    導數在無窮級數求和方法中的應用
  5. Tv and radio stations broadcast news about her activities and teachings. through god s boundless glory, landmarks of enlightenment were erected in cities and countries around the globe, lighting the way for countless lost sheep, leading them to master and back to the kingdom of infinite light. those of us who were privileged to accompany her on the tour to assist with the multitude of tasks required to deliver lectures to thousands of people in city after city, country after country, with no respite between crowded lecture venues, could only look upon master with amazement

    1993弘法那百日期間，發送出無以計數的免費樣書傳單及海報，無遠弗屆的報紙廣播電視，載印師父的法相與教理，載播放送師父的法音，以數十種不同的語文，密集地從一個城市到一個城市，從一個國家到一個國家，帶著上帝無限的榮光，在地球的每一個角落，高高樹立起開悟的標志，照亮行路，引導數之不盡的迷途羔羊，走向師父返回光亮的國度。
  6. Out of many series of innumerable commands of napoleon not carried out, one series of commands for the campaign of 1812 was carried out ; not from any essential difference between the commands carried out and those not carried out, but simply because the former coincided with the course of events that led the french soldiers into russia ; just as in stencil - work one figure or another is sketched, not because the colours are laid on this side or in that way, but because on the figure cut out in stencil, colours are laid on all sides

    在拿破崙的無數未被執行的命令中，關於一八一二年戰役的那些命令被執行了，這並非因為那些命令與別的未被執行的命令有什麼不同，只因為那一系列命令與導致法國軍隊進入俄國的一系列事件相符合正如用鏤花模板繪制這樣或那樣的圖形，並非在哪一面或照什麼樣塗上顏色，而是在模板上雕刻的圖形的各個面都塗上顏色。
  7. Secondly, according to the requirement of the parametric sensitivity analysis, the method based on orthogonal experiment is chosen to cope with the difficulty of obtaining the sensitivity analysis through the partial derivative of explicit function. and it also overcomes the traditional single factor cyclical method ' s shortcoming ? impossibility to analysis interactional factors. furthermore, some significative conclusions are acquired from the sensitivity analysis

    其次根據軌跡優化問題靈敏度分析的需要，選取基於正交試驗的靈敏度分析方法，解決了軌跡優化問題沒有顯函數，無法通過求其偏導數獲得靈敏度的難點，同時克服了傳統的單因素輪換法對該類問題進行靈敏度分析帶來的弊端? ?無法對有相互作用的因素進行靈敏度分析，並通過對軌跡優化問題進行靈敏度分析，得出了一些有益的結論。
  8. Only clouds of points instead of grids are distributed over the computational domain and the spatial derivatives of the considered partial equations are estimated using a least - square curve fit on local clouds of points

    與傳統的網格方法不同，無網格方法的核心是用「點雲」離散求解區域，並基於當地點雲離散結構，引入二次極小曲面逼近空間導數。
  9. The preliminary results obtained by solving n - s equations show - viscous effects clearly. in addition, based on euler equations the effects of point distribution, cloud structure and weight selection on computational results have been analyzed, which results in having a convenient technique of point distribution in the computational domain and a rule of point selection forming an appropriate. clouds of points used in the computation

    此外，論文結合無粘euler方程的求解，對無網格演算法涉及的計算域內點的分佈、當地點雲結構及空間導數逼近的加權因子等問題對計算結果的影響進行了分析和比較，完善了方便的區域離散布點方法，明確了點雲生成選點準則。
  10. These problems are as follows : the guidance principle is not in accordance with the regulation of civil procedure, too many improper subjects begin this procedure, it is difficult for the party to begin this procedure, the reasons for retrial are regulated too rigidly, the setting of administrative courts is not rational, there is no limitation to the number of times of retrial, the regulation for retrial period is too simple and there is no definite regulation for court costs and so on

    該章分析了我國再審程序存在的主要問題：指導思想有失偏頗，再審程序啟動主體過多且不合理，當事人申請再審難以啟動再審程序，申請再審事由的規定過于原則，再審的管轄法院設置不合理，再審無次數限制，申請再審的期間規定過于簡單，再審的訴訟費用無明文規定等。
  11. On the basis of the theory of thin shells and the non - moment assumption, the equations of motion of the cylindrical shells under longitudinal line - loading are derived in the case of ignoring the shearing stress, and then, the set of partial differential equations are solved by the fourier series method

    基於薄殼理論和無矩假定，在略去剪切應力的情況下推導了圓柱殼在縱向線載荷作用下的運動方程，並採用fourier級數法進行了求解。
  12. Due to the poor regularity of solutions at large time. ( 0. 2. 1 ) can not defined in classical way. i, e., the defi nition of the derivatives at any points has no sense. so it may be rather difficult in the research of classical way and must be defined in weak sense. in order to guarantee the uniqueness of weak solutions, a condition ( entropy inequality ) must be need to pick out " good " solution ( entropy solutions )

    由於大時間范圍內守恆律（ 0 . 1 . 1 ）的解表現為很差的正則性，它不能在古典意義下定義，即在每一點下的導數無意義，使得古典辦法研究遇到很大困難，它只能在弱意義下定義弱解，但往往這種弱解不唯一，需要某條件限制確保解的唯一性，在數學上稱為熵條件，滿足該條件的弱解稱為熵解。
  13. Derivative - free methods

    無導數方法
  14. This feature reflects the physical phenomenon of breaking of waves and development of shock waves. in the fields of fulid dynamics, ( 0. 2. 1 ) is an approximation of small visvosity phenomenon. if viscosity ( or the diffusion term, two derivatives ) are added to ( 0. 2. 1 ), it can be researched in the classical way which say that the solutions become very smooth immediately even for coarse inital data because of the diffusion of viscosity. a natural idea ( method of regularity ) is obtained as follows : solutions of the viscous convection - diffusion pr oblem approachs to the solutions of ( 0. 2. 1 ) when the viscosity goes to zeros. another method is numerical method such as difference methods, finite element method, spectrum method or finite volume method etc. numerical solutions which is constructed from the numerical scheme approximate to the solutions of the hyperbolic con - ervation laws ( 0. 2. 1 ) as the discretation parameter goes to zero. the aim of these two methods is to construct approximate solutions and then to conside the stability of approximate so - lutions ( i, e. the upper bound of approximate solutions in the suitable norms, especally for that independent of the approximate parameters ). using the compactness framework ( such as bv compactness, l1 compactness and compensated compactness etc ) and the fact that the truncation is small, the approximate function consquence approch to a function which is exactly the solutions of ( 0. 2. 1 ) in some sense of definiton

    當考慮粘性后，即在數學上反映為（ 0 . 1 . 1 ）中多了擴散項（二階導數項） ，即使很粗糙的初始數據，解在瞬間內變的很光滑，這由於流體的粘性擴散引起，這種對流-擴散問題可用古典的微分方程來研究。自然的想法就是當粘性趨于零時，帶粘性的對流-擴散問題的解在某意義下趨于無粘性問題（ 0 . 1 . 1 ）的解，這就是正則化方法。另一辦法從離散（數值）角度上研究僅有對流項的守恆律（ 0 . 1 . 1 ） ，如構造它的差分格式，甚至更一般的有限體積格式，有限元及譜方法等，從這些格式構造近似解（常表現為分片多項式）來逼近原守恆律的解。
  15. Compactly supported function is used to construct the trial function, and weighted residual method with compactly supported function is employed to discretize the differential equation

    無網格法是以一系列節點離散求解域，使用緊支函數構造試函數，採用加權余量法導出微分方程等效形式。
  16. The influence of optical source chirp on femtosecond soliton interaction is studied numerically, and the unequal amplitude method can reduce the interaction. in addition high - order coupled equations governing the evolution of two orthogonal polarization components of the same wave are derived by using multi - dimension derivation expansion method of singular perturbation theory and the dispersion relation. furthermore, a class of optical solitary wave solutions, such as the bright - bright, dark - dark, bright - dark, and combined solitary waves are found under certain parametric conditions

    數值研究了源啁啾飛秒孤子間相互作用，提出了抑制該作用的可能方案；用奇異攝動多重尺度導數展開法和色散關系推導了耦合高階非線性薛定諤方程（ chnlse ） ，並用行波變換法得到了一系列孤波解析解，分析了它們在光纖中傳輸的必要條件，也討論了它們的穩定性，為實現飛秒光脈沖在光纖中的無畸變傳輸作理論上的探索。
  17. Furthermore, when the divided ii1 differences are used to approximate to the derivatives that are coefficients in linear arithmetic representations, computing linear arithmetic representations is converted to compute predicate residuals completely, which needs to analyze neither static nor dynamic data dependencies between the statements on w. at this time, the improved method is more powerful to generate test data, and can be used for black - box testing

    更進一步，當用均差作為謂詞函數關于輸入變量的導數的近似時，計算線性算術表示就全部轉化為計算謂詞殘量，而後者無須分析w上各語句之間的靜態、動態數據依賴關系。此時，改進后的方法比原方法生成測試數據的能力更強，能夠用於黑盒測試數據的自動生成。
  18. We try the unsupervised wsd method based on equivalent pseudowords by the na ? ve bayes model and maximum entropy in paper. it gets 81 % correct rate on the test data of senseval - 3, which is obvious better than supervised method accordingly

    利用得到的兩種較優的機器學習方法:貝葉斯模型及最大熵模型，本文嘗試了基於等價偽詞的無指導詞義消歧方法，在senseval - 3的測試數據上獲得了81 %的正確率，明顯優于相應的有指導方法。
  19. Using a generator ' s parameter, this paper gets the reactive cost function. in order to assure the rationality of the cost function, it calculates the derivative of the cost function and the real - time price with the cost function. the last, this paper discusses the application of the cost function

    綜合上述兩個部分，通過具體的發電機的參數得到無功成本函數，採用該成本函數求偏導數，並採用該成本函數計算實時電價，觀察採用這兩種方法計算得到的發電機節點的電價是否合理，驗證無功成本函數的正確性。
  20. In chapter 1, we first introduce the development of optimization and some extensive optimality conditions which to decide the optimum solution. we review several extensive derivative descent methods of unconstrained programming and feasible descent methods of constrained programming

    在第一章我們首先簡要的介紹了最優化問題的提出以及判斷最優解常用的最優性條件，回顧了無約束優化問題常用的幾類導數下降類演算法和約束優化問題的可行方向法。
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