極大極小原理 的英文怎麼說

中文拼音 [jídàjíxiǎoyuánlǐ]
極大極小原理 英文
minimax principle
  • 極 : i 名詞1 （頂點; 盡頭） the utmost point; extreme 2 （地球的南北兩端; 磁體的兩端; 電源或電器上電流...
  • 小 : Ⅰ形容詞1 （體積、面積、數量、強度等不大） small; little; petty; minor 2 （年紀小的; 年幼的） youn...
  • 原 : Ⅰ形容詞1 （最初的; 原來的） primary; original; former 2 （沒有加工的） unprocessed; raw Ⅱ動詞（原...
  • 理 : Ⅰ名詞1 （物質組織的條紋） texture; grain （in wood skin etc ） 2 （道理;事理） reason; logic; tru...
  1. The first one : fitting together ultimate values of every dimensions in one dimension - chain one by one, educing many equations by itself, calculating results, and comparing these results of close dimension to find maximal and minimal values. the second one : projecting all dimensions on two preestablished axis, then providing the solutions to analyze whether every projected dimensions is increscent or decreasing, and synthesize the effect of every projected dimensions to close dimension, educing many equations by itself, at last calculating the result of close dimension. the third one : according to monte carlo analysis, getting every dimensions " values from every dimensions " tolerances at random time after time, simulating the actual circumstances of mass production using these dimensions, and calculating reasonable results of close dimension economically

    鑒于這類系統在各大中小型企業的廣泛應用與相對滯后的研究水平，本文提出了三種新的能切實地解決目前尺寸鏈計算機輔助分析解算中存在的各種難題的設計方案，第一種方案將尺寸鏈中各組成環能取的極值組合起來，自動列方程組，求解每個組合情況下的封閉環尺寸，最後比較這些結果，得出封閉環的最大最小值；第二種方案將尺寸鏈各組成環向預先設定好的兩個方向投影，之後再分析各尺寸環投影分量的增減性，並且提供了組成環兩個方向上的投影分量增減性不一的復雜情況下的解決辦法，綜合組成環各投影分量的增減性，然後自動列出方程組，最後根據各組成環的投影分量以及所列的方程組來確定尺寸鏈封閉環的尺寸；第三種方案以蒙特卡洛法為原理，在尺寸鏈各組成環的取值范圍內使用計算機產生大量隨機數，模擬實際大批量生產中的零件尺寸分佈情況，以更經濟更合理的方式分析、計算封閉環尺寸。
  2. First the author introduces the design of the flame monitoring system based on pic16f877 mcu in details. the detector, ( ecadata company ’ s production ), si - photodiode, is used as the sensor. its photoelectric current output is proportional to input light ’ s energy

    經方案比較，決定選用基於火焰的紅外光譜輻射特性的火焰檢測原理，研製開發火焰監測系統，檢測元件選擇ecadata公司生產的紅外雪崩型硅光電二極體，光電二極體在接受紅外輻射時，其產生光電流的大小與入射光能量成正比。
  3. This article puts forward a solution named divide - assemble by deducing the size of bp neural network to overcome entering the local best point, the dividing process is that a big bp neural network is divided into several small bp neural networks, every small bp neural network can study alone, after all small bp neural networks finish their study, we can assemble all these small bp neural networks into the quondam big bp neural networks ; on the basis of divide - assemble solution, this article discusses the preprocessing of input species and how to deduce the size of bp neural network further to make it easy to overcome entering the local best point ; for the study of every small bp neural network, this article adopts a solution named gdr - ga algorithm, which includes two algorithms. gdr ? a algorithm makes the merits of the two algorithms makeup each other to increase searching speed. finally, this article discusses the processing of atm band - width distribution dynamically

    本文從bp網的結構出發，以減小bp神經網路的規模為手段來克服陷入局部極小點，提出了bp神經網路的拆分組裝方法，即將一個大的bp網有機地拆分為幾個小的子bp網，每個子網的權值單獨訓練，訓練好以後，再將每個子網的單元和權值有機地組裝成原先的bp網，從理論和實驗上證明了該方法在解決局部極小值這一問題時是有效的；在拆分組裝方法基礎上，本文詳細闡述了輸入樣本的預處理過程，更進一步地減小了bp網路的規模，使子網的學習更加容易了；對于子網的學習，本文採用了最速梯度? ?遺傳混合演算法（即gdr ? ? ga演算法） ，使gdr演算法和ga演算法的優點互為補充，提高了收斂速度；最後本文闡述了用以上方法進行atm帶寬動態分配的過程。
  4. Fast algorithms of both discrete and orthonormal wavelet and wavelet packet coefficient are diagrammatized to be introduced. daubechies wavelet is applied to help to discuss the application and test on signal filtering and noise reduction with the principle and threshold implementation ; the basic principle to pickup the fault characteristics is introduced mainly about the relations between the maximum module and signal saltation point and how to characterize the saltation point with lipschitz exponent

    展示了離散正交小波變換的mallat快速演算法和小波包系數分解的快速演算法；重點應用daubeches小波探討了小波變換在信號濾波去噪中的應用和實驗，闡述了其基本原理和通過閾值化處理實現濾波的具體方法；探討了用小波變換進行故障特徵提取的原理，說明了小波變換模極大值和信號突變點之間的關系以及怎樣用李氏指數來表徵突變點的性質。
  5. In this experiment, the quantity change of partial pressure of main elements is given by longtime dynamic measuring of metal dewar exhausting with quadrupole mass spectrometer ( qms ), the results show that exhausting technology influences outgassing of dewar vacuum vessel, this paper gives the theory, equipment, method, data and disturb fators, we also give primary investigation how the main gases affect the vacuum integrity of dewar and point out the possible ways which can be applied to present technology

    摘要實驗研究用四極質譜儀對金屬杜瓦排氣進行長期動態監測，跟蹤內部主要氣體成分的分壓強的大小變化，得出排氣工藝對杜瓦內表面放氣量大小的影響，介紹了實驗的原理、裝置、方法、數據和干擾因素，對影響杜瓦真空度的主要氣體成分進行了初步研究，提出改進杜瓦排氣工藝的可能方向，對工藝處理具有實際意義。
  6. The flexible decision method of bargaining for the kind of cooperative game is presented. the solution by the method is egalitarian and efficient. under some condition, it is the lexicographic maximin solution

    柔性決策方法，根據這種方法求出的解具有公平性和有效性，符合管理科學的基本原則；在一定的條件下，這種解也是字典序極大極小解
  7. Then, with the concept of accumulated failure probability, the proposed approach combines the least ? quares method with bayes " theorem, takes advantage of the parameter estimation for single weibull distribution to each derived subgroup data set, and estimates the parameters of each subpopulation. the estimates given by this paper also satisfy the maximum likelihood equation. the mean time to failure and the reliability estimation of the mixed population are given

    然後通過利用累積失效概率等概念，對每個導出的子組數據集聯合運用最小二乘法、貝葉斯定理和對單一威布爾分佈的參數估計法，從而得到每個子總體的滿足極大似然原理的參數估計，給出了該混合總體平均壽命和可靠度的估計。
  8. Also, the author ’ s design strategy and creativity has been given in this paper. specifically, it includes : based on the feasibility analysis of the fit selection of control parameters in the aeration process, the aeration process of wastewater treatment of the joint - constructional complete - mixed activated sludge process has been aimed at in this paper. then, the state equations of the aeration process have been proposed in this paper, which is on the base of dissolved oxygen concentration ( do ) and discharge quantity of sludge ( qw ) as control variables, the concentration of bod and sludge as state variables. based on the present study on optimization control of wastewater treatment, the multivariable optimal control model with restriction factor has been presented in the paper with introducing modern control theory and system analysis into the field of activated sludge wastewater treatment,

    具體包括:以完全混合、表面曝氣合建式活性污泥工藝的污水處理曝氣過程為研究對象，在闡述了曝氣過程式控制制參數選取可行性的基礎上，建立了以溶解氧濃度do和活性污泥排放量qw為控制變量，以曝氣池中有機物濃度s和微生物濃度x為狀態變量的活性污泥曝氣過程的基本狀態方程;運用現代控制理論的觀點和污水處理理論，在現有關于污水處理最優控制問題研究的基礎上，建立了有約束條件多變量能耗最小數學模型，該數學模型是以有機物排放總量和狀態變量的末值條件作為約束條件，曝氣過程的能耗最小作為目標泛函;採用增廣拉格朗日乘子法對最優控制問題進行轉化，並對應用極大值原理求解能耗最小這一最優控制問題進行了詳細的解析;引入約束運算元，應用具有控制約束的共軛梯度演算法對能耗最小這一最優控制問題進行求解，並進行模擬實驗驗證。
  9. In modern laboratories like cern or fermilab in illinois, physicists accelerate antiprotons or positrons produced by nuclear reactions to the speed of light and collide them with conventional particles to produce tiny starbursts of primordial energy, recreating forms of matter and energy unseen since the big bang

    像cern現代實驗室或伊利諾斯州費米實驗室，物理學家加速核反應產生的反質子或正電子到光速，而且把它們同常態粒子碰撞產生自大爆炸以後從未見過的物質和能量再生形態的原始能量極小星光閃耀。
  10. The algorithm makes use of maximum entropy of information theory and gets optimal solution by a small - scale

    該演算法利用了信息論中極大熵原理，使演算法以較小的規模得到較好的最優解。
  11. First we introduce theory and merits of graphic wavelet transform, then mallat algorithm, multi - scale characteristic, quadratic b - alpine wavelet and the coefficients of this filters, and etc. later we calculate the gradient matrix based on the result of wavelet transform, thin the contour and get spatical information

    先介紹圖像小波分解方法的原理、 mallat快速演算法、多尺度特性、 3階b -樣條小波基函數的選取及其濾波器系數的推導等，然後根據小波變換結果計算梯度矢量矩陣，進行非極大值抑制和雙閾值化，提取目標輪廓。
  12. In this application, the lorentz force generated by the interaction between the current in the wire and the geomagnetic field produces an electro - dynamic drag leading to a fast orbital decay. in this paper, we make an intensive study of the process of de - orbiting using electro - dynamic tether system. the concrete work includes : firstly, i have studied the basic principle of how to generate the electro - dynamic drag, modeled via accuracy geomagnetism, made a concrete analysis of the de - orbiting duration, the magnitude and direction of electro - dynamic drag under the action of the dipole and accurate geomagnetic models, set up a counterbalance between electro - dynamic torque and gravity gradient torque, emulate the de - orbiting process of spacecraft, and compared the change of six orbital factors and the de - orbiting duration under the action of the dipole and accurate geomagnetic models

    本文對基於電動力纜繩的航天器離軌過程進行了深入研究，具體工作如下:首先，本文研究了電動力纜繩產生電動力拉力的基本原理，建立了精確地磁場模型;分別在偶極子模型和精確地磁場模型作用下，對電動力拉力的大小、方向、離軌時間及電動力纜繩傾角的大小進行了計算分析;建立了電動力力矩與纜繩系統重力梯度力矩的平衡關系;分析了電動力力矩為系統提供能量的原理;最後分別在偶極子地磁場模型和精確地磁場模型作用下，對受電動力纜繩作用的航天器的離軌過程進行模擬，分析了在不同精度地磁場模型下，航天器離軌過程中各軌道參數的變化情況，並比較了不同模型對離軌時間的影響。
  13. Solution of nonlinear ship motion equations in oblique regular seas. in this thesis, a new method is presented about calculating nonlinear ship motion responses in oblique seas based on minimized theory

    哈爾濱工程大學博士學位論文關于斜浪中非線性船舶運動方程的求解:本文提出了按極小化原理確定斜浪規則波中船舶非線性運動響應的新方法。
  14. The results showed that the water absorption ability of food super - fine powders could be determined stably and effectively by the self - made equipment, the water absorption abilities were different when the powders were made from different kinks of grains : the powders began to absorb water earlier and the speed of water absorption became rapider while the particle size of the powders was smaller, and the speed suddenly tended to increase and reached the limit value when the particle size of the powders was up to a certain value

    實驗結果顯示：根據毛細原理自製的毛細吸水測定儀能穩定、有效地測定食品超細粉的吸水性；不同來源的超細粉吸水性不同；同一種食品超細粉粒度越小，吸水開始早、吸水速度越快；超細粉粒度達到某一粒度值時，吸水速率突然增大並達到極限。
  15. Design of power system stabilizer based on minimax principle

    基於極大極小值原理的電力系統穩定器的設計
  16. Minimax principle deals with the relation between the minimax value and maximin value of a function

    極小極大原理論述的是函數的極小極大值與極大極小值之間的關系。
  17. In the article, the mechanism of temperature field has been researched and the math model of 3d unsteady temperature field is established according to analyze the cracking reason, produce mechanism of temperature crack, the specialty of crack in mass concrete. the thermal conduction equations are converted into extremum of functional analysis through calculas of variations

    本文通過對大體積混凝土裂縫的成因，溫度裂縫的產生機理，溫度裂縫的特點，研究了大體積混凝土溫度場機理，建立了數學模型，並用變分原理將三維瞬態溫度場的熱傳導方程問題轉化為泛函的極小值問題。
  18. Based the basic principle of the accumulation of induced electric charges across the resistivity discontinuities and the induction current channeling inside the conductive bodies inspirited by the mt field, we set up the relation between the measured field on the earth surface and the distribution of the induced source underground by means of the defining the electric charge occurrence probability function and the electric dipole occurrence probability function and the spacial distributing of the " correlation probability ". the " image " of the field sources underground, or the distributing graphy of the induced electric charges and the induced current in the mesuring area can be drawed, from which we can get the outline of the geological anomaly on the meaning of the probability

    大地電磁場概率成像方法是一種新的地球物理成像反演方法，它是根據在大電磁波場的激勵下，地下介質電阻率間斷處產生感應電荷積累和導體內部產生感應電流，從而產生感應電磁場的原理，相應地定義了感應電荷發生概率函數和感應電偶極子發生概率函數，通過「相關概率」發生的大小的空間分佈，建立了地表觀測場與地下場源空間分佈的內在聯系。地下場源分佈概率的「像」 ，即測區的感應電荷和感應電流的概率的分布圖像，就是測區內地質體在概率意義下地質異常體的分佈輪廓。
  19. Firstly, the basic theory of full - bridge phase - shift zvs pwm converters are expatiated and another three kinds of circuits of full - bridge phase - shift zvs pwm converters are discussed. there are four kinds of problems which are emphasized : how to expand the zvs range ; how to reduce the circulation in the primary side of the transformer in order to minimize the on state losses ; how to decrease the loss of effective duty circle and how to eliminate the parasitic oscillation of the output rectifiers

    本文首先分析了基本的全橋移相zvsdc dc變換器的工作原理，為解決滯后橋臂不易實現零電壓開關（ zvs ）的情況，討論了另外三種全橋移相zvsdc dc變換器的電路拓撲，重點分析並解決了四個方面的問題：如何擴大zvs的負載范圍；減小變壓器原邊環流，降低變換器系統通態損耗；減少變壓器次邊有效占空比丟失；消除輸出整流二極體的寄生振蕩。
  20. Meanwhile, the telephone gateway in tetra system is introduced. in further research, the principle of tetra speech coding algorithm ? algebraic codebook excitation linear prediction ( acelp ) is introduced and analysed in detail, which is a advanced codebook excitation linear prediction ( celp ). acelp algorithm replaces the excitation signals with algebraic codebook and uses some technique such as minimizing the mean square error ( mse ) and the analysis - synthesis method to obtain characteristic parameters of speech

    同時，介紹tetra系統的市話網關，並在接下來的研究中詳細介紹tetra電話網關中應用到的語音編解碼演算法? ?代數碼本激勵線性預測碼（ acelp ）的基本原理，它是一種簡化了的碼本激勵線性預測碼（ celp ） ，它把激勵信號用代數碼本代替，並且運用了均方誤差最小、分析?合成等技術提取出語音的特徵參數，極大地降低了比特率，而且具有較好的重建語音質量。
分享友人
分享到 Line

分享到臉書