forward problem 中文意思是什麼

forward problem 解釋
正演問題
  • forward : adv 1 向前，前進 （opp backward）。2 【航海】在船頭，向船頭（opp aft）。3 今後，將來。4 出來，出...
  • problem : n. 1. 問題，課題；疑難問題；令人困惑的情況。2. 【數、物】習題；作圖題。3. （象棋的）布局問題。adj. 1. 成問題的；難處理的。2. 關于社會問題的。
  1. The design of design of learning activity are consisted of putting forward problem context, anglicizing problem, resolving problem and submit, evaluation of scheme to resolve problem

    學習活動的設計主要包括問題情境的提出、問題的分析、問題的解決以及問題解決方案的提交和評價。
  2. The problem of calculating the core attributes of a dicision table is studied, a new discernibility matrix and the computation of core is put forward in this paper, and correctness of this method is proved. this method is the same with consistent and antipathic dicision tables

    論文對目前求核方法存在的問題進行了分析，提出了一種新的可區分矩陣與求核方法，並證明了方法的正確性，該方法適用於任何決策表（相容的或不相容的） 。
  3. Summarizing the 50 years of study and reconstruction for the song dynasty water - powered armillary sphere and celestial globe tower, this paper puts forward again the historical problem whether or not the tower could operate perfectly or successfully in the song dynasty

    摘要在50年的研究並在結構和原理上復原出原大的水運儀象臺后，有理由重新提出歷史上水運儀象臺曾否成功運行的問題。
  4. We describe the meaning of chaos > future idea of chaotic theory and influence on forecast ; introduce the character of chaotic time series, and point out the problem and shortage of the methods already existed computing character value which are fractal dimension and the largest lyapunov exponent and improve on it ; present the forecast principle of forecast method based on chaotic attractor, and point out the shortage of local field forecast method based on chaotic attractor and bring forward improved on methodo at the same time, we put forward a banausic algorithm and compare two models using practical example

    論述了混飩的含義與混淪理論的未來觀及其對預測的影響；介紹了。混飩時間序列的特徵，指出了己有的計算分形維及最大李雅譜諾夫指數這兩個特徵量的方法存在的問題與不足，並對此進行了改進；給出了基於混飩吸引子的預測方法的預測原理，指出了常用的基於混燉吸引子預測的局域法的不足並給出了改進方法，同時，給出了其實用演算法，並用實例進行了比較。
  5. The classic difference scheme of euler is employed to solve the forward problem, and the truncated singular value decomposition is used to solve the ill - conditioned system of algebraic equation

    用古典歐拉差分格式求解正問題，用截斷奇異值分解法求解病態方程組。
  6. ( 2 ) using fem simulation software package, eit forward problem of 2d head model could be solved and the scalp potential could be figured out when brain conductivity varies

    （ 2 ）應用有限單元模擬軟體實現了二維頭模型eit正向問題的求解，並可根據腦組織的不同電導率得到對應的頭皮電位分佈。
  7. This software can be used to construct automatically 16 electrodes and 32 electrical electrodes finite element method ( fem ) division model. the equi - potential lines in any drive pattern can be plotted and the boundary potential changes in its forward problem can be obtained. using back projection method, the impedance imaging in simulation and real measurement can be reconstructed

    該軟體對任意形狀、結構的場域可實現自動剖分，可建立16電極、 32電極求解模型；正問題部分可給出各種激勵情況下的等位線分佈和邊界電位變化情況；逆問題部分用反投影法實現了圖像重構，並成功應用於所研製的測試系統。
  8. The author established the simulation software, made it convenient to set the parameters of the resistance sensor with circular and square pipe, flow pattern, solve the forward problem and reconstruct the image

    作者在論文工作中建立了電阻層析成像系統的模擬軟體，利用該軟體可以方便地設置圓形管道、方形管道電阻傳感器的參數以及流型分佈，進行電阻層析成像的正問題求解和逆問題圖像重建演算法的研究。
  9. A finite element simulation software is developed for ert system. the main functions include the self - division of finite element, the setting of flow pattern and the solution of the forward problem, et al.

    開發了ert有限元模擬軟體包，主要功能有：對給定的場域按要求進行自動剖分，設置流型，求解ert正問題等。
  10. With the rapid development of numerical technology and cfd simulation, the numerical technology for the forward problem of impeller machinery design had a good investigation and application, but the turbulence model need to be improved

    由於計算流體力學和計算技術的迅速發展，利用數值技術進行流體機械正問題研究已經較為成熟，並有一定的研究與應用，但湍流模型尚待進一步完善。
  11. 3 ) a simulation software of numerical calculation of eeg was developed based on matlab, after the methods used to solve eeg forward problem and inverse problem had been analysed. the software included three modules : 3d reconstruction of real head model, eeg forward problem using bem, eeg inverse problem using shrinking loreta - focuss algorithm. in the future, spatio - temporal source model will be investigated and the simulation software will be optimized and developed

    3 ）研究了在具有真實幾何結構及電磁參數的頭模型下腦電正、逆問題的求解方法，形成了自己的思想，開發了基於matlab環境的腦電信號產生源分析計算軟體，實現了從mri圖像出發建立頭的數值計算模型，用bem演算法計算腦電正問題，用shrinkingloreta ? focuss方法進行腦內電活動的反演的一系列計算模擬。
  12. Firstly, in this paper the theory of light propagation and diffusion is introduced. the software of femlab based on finite element method is used to simulate the nir light fluence in the tissue, which is just the forward problem of optical ct

    本文首先介紹了光在組織中的傳輸及其擴散近似理論，並用基於有限元方法（ fem ）開發的femlab軟體模擬了光在生物組織中的分佈，此即光學ct的正向問題。
  13. Thesis is giving first place to the thread with shandong guangyue steering knuckle factory marketing strategy planning, and spreads out according to the logical train of thought to put forward problem, analysis problem and settlement problem

    本文所做研究的目的就是試圖通過定性分析和定量分析相結合的方法，為山東光岳轉向節總廠制定一個可操作的營銷戰略，以求實現企業的可持續發展。
  14. Shandong guangyue steering knuckle should positioning himself a specialized commercial automobile steering knuckle producer, and at the same time, according to the different characteristics of each objective marketpositioning enterprise a reliable supplier on lorry steering knuckle oem market, and positioning product the best safety capability on bus steering knuckle oem market, on oem market of automobile used in agriculture positioning product a steering knuckle made by a specialized commercial automobile steering knuckle producer. thesis is giving first place to the thread with shandong guangyue steering knuckle factory marketing strategy planning of joint, and spreads out according to the logical train of thought to put forward problem, analysis prob lem and settlement problem

    應將企業重新定位於專業化的商用車轉向節製造商。同時，依據企業擁有的可進行差別化的優勢和各目標市場的不同特點，在載貨車轉向節配套市場將企業定位於最可靠的供應商，在客車轉向節配套市場將企業產品定位於安全性能最好的轉向節，在農用車配套市場將企業產品定位於專業的商用車轉向節製造商生產的農用車轉向節。
  15. The thesis analyzes the forward problem at different circumstances

    並針對不同的條件進行了分析，探討了重構條件。
  16. The state of the art of process tomography technique is reviewed. the forward problem and inverse problem of ert are analyzed. the existing problems are discussed

    在閱讀大量參考文獻的基礎上，歸納總結了過程層析成像技術的發展歷程及現狀，指出了ert技術的優越之處及其廣闊的工業應用前景。
  17. The forward problem is solved using a finite element technique in two dimensions that is a foundation of the inversion problem. this paper finished 2 - d finite element forward program based on the theory of 2 - d finite element technique

    正演計算是電阻率反演成像的基礎，本文從二維有限元基本理論出發，完成了高密度電法的二維有限元正演模擬程序，為後期多方法反演奠定了基礎。
  18. When coaxial - line probe is used to measure the permittivity of biological tissues, the pulse is used as an excitation in order to get more information in frequency domain. so frequency - dependent finite difference time - domain method is used to calculate the forward problem. it need not change the pulse into frequency - domain, and can calculate the problem in time - domain, which saves the memory space and makes calculation fast genetic algorithm ( ga ) is used to solve the inverse problem

    在同軸線用於獲取生物組織的介電常數的研究中，為了獲得更多的頻域信息，採用脈沖作為激勵，故數值計算的方法採用基於頻域的時域有限差分法，該方法不用將脈沖變為頻域問題，可在時域中直接求解，因此極大節約了計算空間，在短時間內可計算完正問題。
  19. The order in the latter two phases can be adjusted according to different conditions. also constructs basic instruction flow : set up teaching context and put forward problem - organize teaching and inquiry, exchange with each other - enlighten and guard, synthesize and develop

    並在學生學習環節的基礎上構建了「創設情境，提出問題? ?組織教學，互動探究? ?啟發引導，整合拓展」的探究性學習的教學基本流程。
  20. Firstly, as a forward problem is solved for each iteration of ga reconstruction, calculating the electric field for a given distribution permitivity and driving source - this aspect will be treated with more detail. the thesis uses finite element method ( fem ) to solve it, because fem can conveniently handle inhomogeneous dielectric, converge well, and spare computing time by compacting the matrix

    本文首先建立了介電成像的數學模型，採用有限元方法求解正問題，有限元方法的優點在於能方便地處理非均勻介質、具有良好的收斂性、可以壓縮系數矩陣而節省計算時間，這有利於應用遺傳演算法進行優化。
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