隱函數方程 的英文怎麼說

中文拼音 [yǐnhánshǔfāngchéng]
隱函數方程 英文
implicit function equation
  • 隱 : Ⅰ動詞（隱瞞; 隱藏） hide; conceal Ⅱ形容詞1 （隱藏不露） hidden from view; concealed 2 （潛伏的; ...
  • 函 : 名詞1. [書面語] （匣; 封套） case; envelope 2. （信件） letter 3. （姓氏） a surname
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 方 : Ⅰ名詞1 （方形; 方體） square 2 [數學] （乘方） involution; power 3 （方向） direction 4 （方面） ...
  • 程 : 名詞1 （規章; 法式） rule; regulation 2 （進度; 程序） order; procedure 3 （路途; 一段路） journe...
  • 函數 : [數學] function函數計算機 function computer; 函數計算器 function calculator; 函數運算 functional operation
  1. In this text, we first do some research on the genetic algorithm about clustering, discuss about the way of coding and the construction of fitness function, analyze the influence that different genetic manipulation do to the effect of cluster algorithm. then analyze and research on the way that select the initial value in the k - means algorithm, we propose a mix clustering algorithm to improve the k - means algorithm by using genetic algorithm. first we use k - learning genetic algorithm to identify the number of the clusters, then use the clustering result of the genetic clustering algorithm as the initial cluster center of k - means clustering. these two steps are finished based on small database which equably sampling from the whole database, now we have known the number of the clusters and initial cluster center, finally we use k - means algorithm to finish the clustering on the whole database. because genetic algorithm search for the best solution by simulating the process of evolution, the most distinct trait of the algorithm is connotative parallelism and the ability to take advantage of the global information, so the algorithm take on strong steadiness, avoid getting into the local

    本文首先對聚類分析的遺傳演算法進行了研究，討論了聚類問題的編碼方式和適應度函數的構造方案與計算方法，分析了不同遺傳操作對聚類演算法的性能和聚類效果的影響意義。然後對k - means演算法中初值的選取方法進行了分析和研究，提出了一種基於遺傳演算法的k - means聚類改進（混合聚類演算法） ，在基於均勻采樣的小樣本集上用k值學習遺傳演算法確定聚類數k ，用遺傳聚類演算法的聚類結果作為k - means聚類的初始聚類中心，最後在已知初始聚類數和初始聚類中心的情況下用k - means演算法對完整數據集進行聚類。由於遺傳演算法是一種通過模擬自然進化過程搜索最優解的方法，其顯著特點是隱含并行性和對全局信息的有效利用的能力，所以新的改進演算法具有較強的穩健性，可避免陷入局部最優，大大提高聚類效果。
  2. In this article, we give sufficient conditions for the existence of solutions to the vectorial hamilton - jacobi equations with dirichlet boundary condition : obtaining, in addition, an application to the theory of existence of minimizers for a class of non - convex variational problems

    本文給出了一類依賴于自變量和未知函數的梯度的向量情況隱式偏微分方程的dirichlet問題的弱解的存在性的充分條件，並將該結果應用到一類非擬凸變分問題中去。
  3. We develop some methods for evaluating the security of lsb steganography using randomness test and two - dimension self - correlation function. 4 ) evaluation of the statistical visibility of information hiding algorithms

    提出了基於二維自相關函數徑向譜和隨機性檢驗（包括順序檢驗、遊程檢驗和一維自相關檢驗）的lsb信息隱藏安全性評估方法。
  4. Examples indicate that the method is available and exact for implicit expressed performance function, and it is a new and effective way for structure reliability analysis

    實例數值結果表明，基於神經網路將隱式函數轉化為明確表達的極限狀態方程是可行的，同時該方法具有較高的精度，為結構可靠度計算提供了新的有效思路和手段。
  5. In this paper, the circuit used for testing sheet resistance is designed using single chip processor. additionally, we have expressed van der pauw function as a polynomial form through local and global reversal development by using the normalized polynomial match, being convenient not only for programming, but also for sheet resistance testing when using van der pauw and rymaszewski methods

    本文還利用單片機系統設計了薄層電阻測試電路，對于程序中用到的范德堡隱函數，利用非線性反演和規范化擬合的方法推導出其多項式顯函數形式。這不僅給對我們編寫程序提供了方便，也為使用范德堡法和rymaszewski法測量薄層電阻提供了便利。
  6. Three finite - difference methods, i. e., stagger grid, implicit and explicit algorithms, are analyzed in detail. multi - grid algorithm is firstly introduced in elastic wave simulation, to solve for the stability problem inherent in stagger grid and implicit algorithm, also for the efficiency problem inherent in explicit algorithm, and the precision, stability and efficiency for simulation of elastic wave arc increased by multi - grid method. phase - delay method is provided to effectively absorb boundary reflection and increase efficiency for wave motion simulation, based on phase delay and amplitude decaying features along wave propagation

    在水平分層介質接收函數的波形反演研究的基礎上，本文系統闡述了非均勻介質中彈性波傳播數值模擬常用的三種有限差分方法：顯式差分、隱式差分和交錯網格法，首次將多重網格演算法應用於彈性波方程的數值模擬問題，克服了交錯網格法和顯式差分法穩定性差，以及隱式差分法計算效率低的缺點，大大提高了彈性波數值模擬的精度、穩定性和計算效率。
  7. A method of plotting the isovalue line of implicit functions by computer is introduced, the comparison of our method with traditional method of intensity scaling is given. by using of our method, some examples of isopotential and interference in college physics are displayed

    通過介紹有關隱函數等值線的計算機繪制方法，與傳統的物理圖形強度定標法作了比較.用此方法舉例模擬了大學物理課程內容中電荷等勢線和波的干涉圖象
  8. At the same time, according to the excellent capability of ip curves, we study fitting and description of objects, determination of invariants of objects, symmetry detection and recognition of objects based on ip curves. in all, the main contributions in the dissertation are as follows : ( 1 ) a method of determining automatically the scale of the multiscale edge detection is proposed based on the variant distance of the variogram function, and a method of segmenting texture images is also presented. the variograin values are taken as stochastic and structural properties of texture images and variant distance is taken as the size of image window

    同時，基於隱含多項式曲線良好的物體描述與識別能力，對物體邊界輪廓的擬合、描述、不變量特徵的提取、識別以及物體對稱性檢測作了系統的研究，主要成果及創新之處有： （ 1 ）基於變差函數的變程，提出了圖像多尺度邊緣檢測中尺度大小的自動確定方法；將變差函數的變差值作為紋理的統計和結構特徵，依據變程確定窗口大小，給出一種新的紋理圖像的分割方法。
  9. According to the theory of equivalent time, creep as a function of equivalent time is expressed. by fitting experimental data, parameters of creep in equivalent time field are obtained ; initial strain implicit solution of elastic creep equation in equivalent time field is derived

    根據等效時間理論，將徐變表示為等效時間的函數，通過擬合試驗數據，得出等效時間域彈性模量和徐變度公式的計算參數，推導了等效時間域的彈性徐變方程的初應變隱式解法。
  10. In this paper, a 3d finite element analysis software ( fzfx3d ) was compiled to simulate the construction process of mass concrete structures constructed with sequence method. based on the practical project xiluodu arch dam, the dam ' s construction process was simulated by a small time step size, 0. 5 or 1 days. the environmental temperature change, hydration heat rise, artificial cooling, creep, volume deformatio

    運用laplace變換方法將溫度的求解表示為只與空間坐標及澆築時間有關的函數，從而避免了用隱式差分法、有限元法求解時需求解聯立方程的因而對測點選擇的依賴，也避免了顯式差分法求解穩定性受時間步長，測點間距大小限制的缺點，因而具有測點布置靈活的特點。
  11. A better desired ventilation form is acquired by comparing the three efficiency values. on the basis of recently materials collected in the field at home and abroad, this paper adopts two - equation turbulence model by analysis and comparison, and sets up mathematical model to study three - dimentional indoor turbulent flow. control - volume method and power - law scheme is used to discrete these differential equations. according to semi - implicit method for pressure - linked equations ( simple algorithm ), author writes a general program in c language for simulation of the velocity profile, temperature and pollution concentration distributions of indoor airflow, and the writing, the debugging and the running of the program. all are completed in microsoft visual c + + 6. 0 environment

    在收集國內外在這一領域內的大量資料的基礎上，通過分析與比較，採用了k -雙方程模型來研究室內氣流的濃度分佈，建立了描寫穩態的三維紊流室內氣流濃度分佈的數學模型，採用控制容積法和冪函數分佈方案來離散微分方程組，按壓力藕合方程的半隱式法（ simple ）演算法，用c語言編寫了計算室內氣流流場和溫度場、濃度場的通用程序，並在microsoftvisualc + + 6 . 0環境下對程序進行編制、調試與運行，並對調試工作做了探討與分析。
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