transform boundary 中文意思是什麼

transform boundary 解釋
轉換邊界
  • transform : vt (使)變形;(使)變化[轉化,轉變];變態,改變(性質、機能等),改造,改革;【數學】變換;【電...
  • boundary : n 邊界,疆界,限界 (between);(球場)邊線;界標;界限,范圍,分野。 aboundary dispute 邊界糾紛...
  1. Secondly, the 3 - d video coding algorithm based wavelet transform using lifting scheme is proposed, which not only increases computer speed but also gives superb video playback quality without any boundary. finally, the wavelet transform using lifting scheme is used in the object - based video coding, which support scalability and user interactions

    三是在提升小波和任意形狀的圖像編碼的基礎上提出了任意形狀的三維視頻編碼方法,它不僅支持可伸縮性編碼方法,並且支持可交互性,更適于互動式視頻服務和遠程監控。
  2. In order to overcome the difficulty mentioned above, this paper provides an improved heat transfer equation and a mended bem for the problems. first of all, the enthalpy and the " virtual temperature " are introduced into the paper to eliminate several mutative thermophysical properties in the heat transfer equation. secondly, the movement of the boundary between the solid and liquid phases in the billet is educed by virtue of the laplace transform

    這些改進包括:引入熱焓和「虛擬溫度」的概念,對非常數的熱物性參數進行整合:充分考慮鑄坯凝固潛熱釋放帶來的影響,利用「溫度回升法」來加以處理;利用拉氏變換和反拉氏變換的原理來對凝固過程中鑄坯內部固液相界面的移動方程進行了推導和求解,在凝固過程中充分考慮鑄坯內部的固液兩相的影響等等。
  3. The main work includes : based on biot ' s dynamic consolidation equations, by the method of integral transform and matrix transfer, two - dimensional consolidation of layered saturated soils is studied. then, the general integral solutions of stress ( including pore pressure ) and displacement ( including fluid flow ) of any point were obtained under harmonic vibration loads according to staunch boundary condition. second, a program to verify the correctness of this dissertation is developed

    主要工作有:本文根據biot平面動力固結方程,運用積分變換和矩陣傳遞的方法,研究了成層飽和地基的二維biot固結問題,根據下邊界為不透水基巖的邊界條件,獲得了地基表面作用簡諧振動荷載時,任意點應力(包括孔壓) 、位移(包括流體流量)的一般積分形式解。
  4. This paper illustrates detailedly the thin groupware auto - adaptive recognition system ; it also illlustrates the procession of capture image and take indispensable foreclose to wipe off noise in order to get boundary easilyer. the recognition system uses " hough " transform method to make the recognition area orientation, and according to the unstable environment such as lights which leads to the change of the image ' s brightness, thresholds picture using an iterative selection method and then growing process for cell image segmentation based on local color similarity and global shape criteria, adaptively gets the best threshold to divide the washer off the background. the recognition system uses the classifier based on minimal - error - ratio bayes method to make decision after getting image characteristic

    本文詳細介紹了薄形組合件自適應識別系統;闡明了圖像的分通道自動採集過程,以及對採集到的原始圖像所進行的預處理方法。通過採用哈夫變換去除偽邊緣點的方法,有效地解決了識別區域的定位問題。針對裝配零件(主要是墊片)薄、小導致圖像信息少、識別難度大,以及材質不一導致採集到的組合件圖像亮度波動等問題,提出了使用最佳閾值迭代法和使用種子填充的圖像串列分割技術,自適應地找出最佳閡值,使墊片和背景分離,從而提取墊片數目信息。
  5. The main work includes : for the torsional vibrations of a rigid disk on saturated media, first, the dynamic governing equations are solved by the use of hankel transform and the general solutions in the hankel transform fields are formulated. then, considering the mixed boundary - value condition, the dual integral equations of the torsional vibrations of a rigid disk on saturated grounds are obtained, which can be reduced to the fredholm integral equations of the second kind and solved by numerical procedures. consequently, the dynamic compliance coefficient curves and the torsional angle amplitude curves versus the dimensionless frequency are presented and contrasted to that of the elastic one

    在前人研究的基礎上,本文基於陳龍珠等曾提出的一組實用飽和土波動方程,用解析或半解析的方法首次較系統而深入地研究了飽和半空間地基與基礎的扭轉振動問題,主要工作有:對于飽和地基上剛性圓板的扭轉振動,作者首先採用hankel變換求解了動力控制方程,得到了該控制方程在hankel變換域內的通解,然後由混合邊值條件建立了飽和地基上剛性基礎扭轉振動時的對偶積分方程,並將其化為易於數值求解的第二類fredholm積分方程,用數值方法計算了基礎的動柔度和扭轉角幅值與振動頻率的關系曲線,並將其與單相彈性介質情況進行了對比分析。
  6. The numerical method based on the coupling of the finite difference method in time domain with the discrete fast fourier transform is applied to calculate the first four eigenfrequencies and eigenfunctions of the six - cavity with open boundary. the absorbing boundary condition for tem wave is tested numerically, and it is applied to writing the code. the cold testing of the cavity is done and the results are good agreement with the numerical results

    計算x波段六腔開放腔前四個模式的場分佈;根據第二章公式分別計算x波段六腔開放腔前四個模式的電子負載電導並總結了這四種工作模式渡越效應的規律,基於這種小信號理論分析了x波段渡越輻射振蕩器,得到了工作模式及可能產生的模式競爭。
  7. Thirdly, the method to calculate the 3 - d dynamic responding of layered transversely isotropic saturated soils to an arbitrary buried source in cylindrical coordinate as well as to an arbitrary harmonious source in rectangular coordinate is presented respectively. based on biot ' s wave theory, the 3 - d wave equations in cylindrical coordinate for transversely isotropic saturated poroelastic media are transformed into a group of governing different equations with 1 - order by the fourier expanding with respect to azimuth and hankel integral transform method or by the double fourier transform method with respect to horizontal coordinates in rectangular coordinate. then, transfer matrixes within layered media are derived under the continuous conditions, drainage conditions and the boundary conditions

    基於飽和土的biot波動理論,通過fouricr變換,將橫觀各向同性飽和土三維非軸對稱波動方程轉化為一組一階常微分方程組,再經har止el變換,建立問題的狀態方程,求解狀態方程得到傳遞矩陣;利用傳遞矩陣,結合飽和層狀地基的邊界條件、排水條件及層間接觸和連續條件,首次給出層狀橫觀各向同性飽和地基在任意地展力作用下的三維非軸對稱動力響應的解析解。
  8. The extrapolation was used in this method for improving efficiency and accuracy, and the quasi shannon interval wavelet collocation method was constructed based on the concept of interpolation wavelet transform. this method can handle the problems of complex boundary conditions and improve computation accuracy greatly

    在此基礎上,根據區間插值小波的概念,構造了擬shannon區間小波配置法,數值算例表明該方法不但可以消除邊界效應,而且可大幅度提高計算精度。
  9. In addition, several way are adopted to optimize the one dimensional transform architecture. improving the architecture resulting from the standard lifting scheme reduces the critical path delay ; an embedded boundary extension algorithm is adopted instead of the standard symmetric extension and it ’ s easier to implement ; the pipeline technique is adopted to increase the speed of processing ; coefficients of the multipliers are transformed into csd forms and the multiplications are substitute by minimum shift - add operations

    改進了由標準的提升演算法得到的變換結構,減小了關鍵路徑上的延時;採用內嵌的邊界延拓來代替標準的對稱延拓,實現更加簡單;採用流水線技術顯著提高了處理的速度;把乘法器系數表示為csd形式,將常系數乘法優化為最少的移位加操作。
  10. At the beginning of fourth chapter, the article transforms the solving problem of partial differential equation for the american put price into a standard initial and boundary value problem of parabolic type by making some transformations. afterwards, the solving problem of parabolic type is transformed into a initial value problem of ordinary differential equation with respect to through fourier transform again. at the last section of the fourth chapter, the article solves the initial value problem with the progressive euler method and the finite element method

    在第四章,對美式看跌期權價格所滿足的偏微分方程定解問題通過作一系列變換,使之轉化為一個標準的拋物型初、邊值問題,接著又通過傅里葉變換,把拋物型初、邊值問題轉換為一個關于時間變量的常微分方程初值問題,然後再分別利用改進的歐拉法和有限元法對其進行了求解。
  11. Thus the resistance factor and vibration modes of the soil layer are obtained and used to analysis the pile response. by considering the interaction between the soil layer and the pile with boundary condition of continuity of displacement and equilibrium of force at the interface of soil layer and pile, the dynamic equilibrium equation of pile is solved and an analytical solution for the pile response in frequency domain is yielded, which is used to define complex stiffness and mobility at the level of the pile head. based on the convolution theorem and inverse fourier transform, a semi - analytical solution of velocity response in time - domain subjected to a semi - sine exciting force is given

    首先通過引入勢函數方法對土體位移進行分解,從而將土體動力平衡方程解耦,求解得到了土層的振動模態和阻抗因子,然後利用該解以小應變條件下樁土接觸面上力平衡和位移連續條件來考慮樁土耦合作用,求解樁的動力平衡方程,得到了樁頂的頻域響應解析解、復剛度和速度導納,利用卷積定理和傅里葉逆變換,求得了半正弦脈沖激振力作用下樁頂速度時域響應半解析解。
  12. Secondly, on the basis of the research on the characteristics of the wavelet coefficients, the combination of the ezw ( embedded zerotree wavelet ) and advanced rle ( run length encode ) is presented to realize the efficient codes of the wavelet coefficients. finally, the improved periodic extension algorithm is used to solve the boundary problem appeared in wavelet transform. the algorithm is realized by software and the good processing results are obtained

    論文選取cdf ( 2 , 2 )小波基,取得了較好圖像壓縮效果;二、通過對小波系數的特點的研究,提出了將嵌入式零樹編碼和改進的遊程編碼相結合的方法,實現了小波系數的有效編碼;三、採用改進的周期延拓法解決圖像進行小波分解時出現的邊界問題,並通過軟體實現,取得較好的處理效果。
  13. The moment method is used to calculate the rcs of three - dimensional targets in this paper. these targets include conducting targets, dielectric targets and coat targets. triangular patches are used to model the surface of the target, then electric field integral equation ( efie ) and magnetic field integral equation ( mfie ) are built which satisfy the boundary conditions. the rwg vector base functions are used to denote equivalent electric current and magnetic current on the surface of the target. finally use the galerkin method ( rwg vector base functions are basis function and test function ) to transform integral equations into matrix equation. when obtain the equivalent electric current and magnetic current, we can calculate the scattering field and the rcs of the target

    本文利用矩量法計算了三維導體目標、介質目標、塗層目標的雷達散射截面。首先採用三角形面元對物體表面幾何形狀進行模擬,然後建立滿足邊界條件的電場積分方程( efie )和磁場積分方程( mfie ) ,將物體表面的等效電磁流用rwg矢量基函數表示,最後利用伽略金法( rwg矢量基函數既作為基函數又作為檢驗函數)將電磁場積分方程轉化為矩陣方程求解未知電磁流系數,得到了表面的等效電磁流后,可以計算散射場和目標的雷達散射截面。
  14. These nne and ne faults become a long transform fault system and formed a boundary between the eastern margin of china continental plate and philippine sea plate

    這些北北東向和北東向斷層形成一條巨長的轉換斷層系列,也是中國大陸板塊東緣與菲律賓洋塊的一條邊界。
  15. Using the displacement functions and the technique of double fourier transform, the governing differential equations for transversely isotropic saturated poroelastic media are easily solved and, the fourier transformed stress and displacement solutions coorespondingly are obtained. then, under the boundary conditions, the analytical solutions for half - space are presented

    藉助位移函數及雙重fourier變換,研究了直角坐標系下橫觀各向同性飽和土的動力響應問題,得到了飽和半空間體在任意分佈的表面諧振荷載作用下穩態響應的一般解。
  16. Review of linear algebra, applications to networks, structures, and estimation, lagrange multipliers, differential equations of equilibrium, laplace ' s equation and potential flow, boundary - value problems, minimum principles and calculus of variations, fourier series, discrete fourier transform, convolution, applications

    線性代數回顧,網路,結構以及估計的應用,拉格朗日乘數,平衡態的微分方程,拉普拉斯方程和勢流,邊值問題,最小值原理和變分法,傅立葉級數,離散傅立葉變換,卷積,應用。
  17. The general stress and displacement solutions of non - axisymmetric problems are obtained by hankel transform, then the theoretical solutions of stress and displacement in transversely isotropic elastic half - space under arbitrary loading are put forward by introducing boundary conditions. the homogeneous elastic half - space solutions evolved from the theoretical solutions in the paper are in accord with classical ones. solutions under horizontal and vertical loading can be obtained respectively by specializing arbitrary loading ; by analogy, solutions under other loading can be also obtained

    進而引入邊界條件得到一般荷載作用下橫觀各向同性彈性半空間的應力、位移分量理論解,此解經過退化后得到均質彈性半空間理論解與經典解吻合,對一般荷載的特殊化可以分別得到水平荷載下和豎直荷載下的理論解,如此類推,可以得到其它類型荷載的解答。
  18. By the properties of k - th order symmetric function, we obtained some estimations of integral mean value of the solutions of the boundary value problems for some kind of special partial differential equations in dk which can be changed into laplace equations in the unit circle by way of suitable transform

    另外, d _ k上的某一類特殊的偏微分方程經過適當變換后轉化為單位圓上的laplace方程,其邊值問題的解的積分平均估計可由k次對稱化函數的性質較好給出。
  19. When solving the problems, we use the support vector regression ( svr ). first assuming the formula of function, then according to the differential and boundary conditions we transform the original problem to the quadratic programming problem. finally, use the learning algorithm of svr to decide the parameters

    只要事先假設出所求函數的表達式,然後根據已知的微分關系和邊界條件對待求函數進行約束將原問題轉化為二次規劃問題,再採用支持向量機回歸演算法對樣本進行學習即可求出參數,確定待定函數的關系式。
  20. This paper implements differential formation of quasilinear differential equations, furthermore lumped equivalent circuit mode at boundary and constraints between voltage and current have been incorporated to find boundary conditions. because partial differential equations can transform into ordinary differential equations, it transforms telegraph equations into ordinary differential equations

    本文根據偏微分數值解理論應用一階擬線性方程的差分格式,並根據電壓、電流在始端、終端上的約束關系,運用傳輸線集中參數的等效模型確定邊界條件;最後模擬計算得到響應波形。
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