linear diffusion 中文意思是什麼

linear diffusion 解釋
線性擴散
  • linear : adj. 1. 線的，直線的。2. 長度的。3. 【數學】一次的，線性的。4. 【動、植】線狀的；細長的。5. 由線條組成的，以線條為主的，強調線條的。
  • diffusion : n. 1. 散布，發散。2. 傳播，普及。3. 冗長。4. 【化學】滲濾。5. 【物理學】擴散，漫射。
  1. Non - linear dynamical systems and chaotic phenomena. random processes and diffusion. ising model and lattice gas. quantum systems and electronic structures. percolation, fractal and self - similarity. neural network and genetic algorithm

    非線性動力系統與混沌現象、隨機過程和擴散現象、易幸模型與格子氣體的統計模擬、量子系統與電子結構、展透、碎形與自我類似、類神經網路與基因演演算法。
  2. According to the computation process of the fem and assumption, associating of the fem mesh that have separated and the grouting stress diffusion equation, the integral stiffness matrix and the load matrix can be formatted, then the displacement of the nodal point can be got after solving the simultaneous linear equations. and then the grouting parameter can be computed and analyzed

    然後，依據有限元法的計算步驟和所作的假設，結合已經離散化了的網格、灌漿壓力擴散衰減公式，形成整體剛度矩陣、荷載矩陣，經求解后得到結點的位移，並依此計算分析灌漿參數。
  3. At the initial stage of planar technique, b was employed as ideal diffusion impurity in base - region of npn si planar devices because of the match of its solid - solubility and diffusion coefficient in si with those of p in emission - region, and the good shield effect of sio2 film to b. but because of the relatively large solubility ( 5 1020 / cm3 at 1000 ) and the small diffusion coefficient, the linear slowly - changed distribution of acceptor b in pn junction can not be formed, which could not cater to the requirement of high - reversal - voltage devics. thereafter b - a1 paste - layer diffusion technology and close - tube ga - diffusion technology had been developed, while the former can lead to relatively large the base - region deviation and abruptly varied region in si, which caused severe decentralization of current amplification parameter, bad thermal stability and high tr ; the latter needed the relatively difficult pack technique, with poor repeatability, high rejection ratio, and poor diffusion quality and productio n efficiency

    在平面工藝初期，由於b在硅中的固溶度、擴散系數與n型發射區的磷相匹配， sio _ 2對其又有良好的掩蔽作用，早被選為npn硅平面器件的理想基區擴散源，但b在硅中的固溶度大（ 1000時達到5 10 ~ （ 20 ） ，擴散系數小， b在硅中的雜質分佈不易形成pn結中雜質的線性緩變分佈，導致器件不能滿足高反壓的要求，隨之又出現了硼鋁塗層擴散工藝和閉管擴鎵工藝，前者會引起較大的基區偏差，雜質在硅內存在突變區域，導致放大系數分散嚴重，下降時間t _ f值較高，熱穩定性差；後者需要難度較大的真空封管技術，工藝重復性差，報廢率高，在擴散質量、生產效率諸方面均不能令人滿意。
  4. The method is firstly applied to solve the linear convection - dominated diffusion problems and the optimal l2 - error estimates of the unknown function c and the vector flux p are gained

    此方法首先被用於求解線性對流擴散問題，得到了關于未知函數c及伴隨函數p的最優l ~ 2誤差估計。
  5. Many factors regarding the modifying coefficients of circular and rectangular section are analyzed : ( 1 ) it is theoretically proved that the diffusion coefficient of cl - in concrete is dependent of modifying coefficients ; ( 2 ) through analysis of the results of numerical value calculation, it is discovered that the relation between the modifying coefficients and the thickness of protection layer of concrete is linear, from which the function expression of these two variables is gain ; at the same time, the influence on modifying coefficient of the radius of circular section and the thickness of cl - on the surface of concrete ; based on these, practical calculating method of beginning corrosion time of steel of circular section is set up ; ( 3 ) to rectangular section, the diffusion of cf in concrete is two - dimension diffusion

    討論了影響矩形截面以及圓形截面修正系數的因素： （ 1 ）從理論上證明了氯離子在混凝土中的擴散系數與修正系數無關； （ 2 ）通過圓形截面數值計算結果的分析，發現圓形截面修正系數與保護層厚度基本成線性關系，並建立了二者之間的聯系；分析了圓形截面半徑、混凝土表面氯離子濃度對修正系數的影響，從而建立了圓形截面鋼筋初始銹蝕時間的實用計算方法； （ 3 ）在矩形截面氯離子侵蝕下，混凝土處於二維擴散狀態。本文通過計算分析，證明二維擴散的影響區域從邊角開始向中間逐步擴散，並證明了二維擴散影響區域依賴于氯離子擴散系數與氯離子擴散時間的乘積。
  6. And takes the method of passing electricity in wet environment to carry on the reinforcement corrosion acceleration to the reinforced concrete, and uses the linear polarization method to carry on the test to the polarized resistance and corrosion current density of the steel bar flowed through by electricity at different time, analyzing the rule of the change of the reinforcement corrosion parameters, and test the chloride ion diffusion coefficient to evaluate the impermeability of the concrete

    本文以不同水灰比、不同含氣量、不同引氣劑的鋼筋混凝土為研究對象，採用濕通電法對鋼筋混凝土進行加速銹蝕，同時採用線性極化法對不同通電時間的極化電阻和腐蝕電流密度進行測試，分析銹蝕參數的變化規律，並通過測定cl -擴散系數來評價其抗滲性。
  7. Using the linear model and the diffusion communication model of technological innovation as theoretical bases, this dissertation emphasizes two important roles of government for enterprise technological innovation. the first role is to support the r & d of investors during pre - competition

    論文利用技術創新的線性模型和創新擴散通信模型作為理論分析的基礎，提出政府對于企業技術創新作用的兩方面重點：一是支持首創者競爭前研究開發。
  8. In the 3rd section we introduce how to use mathematical model to study financial problems, whose assets running on mixed jump - diffusion process, first we get the famous non - linear feynman - kac formula by fbsde, then let the solution of the bsde be a investor ' s utility function, and it ' s the so - called recurse utility function. second, we can prove that this utility function is a continue viscosity solution of the variation inequality which we get above, and we get the comparison theory. third we can use the result to financial market to study the optimal consumption and portfolio problem or evaluate the american option

    第三章介紹了利用金融資產價格運行基於復合跳躍? ?擴散過程的數理模型來研究金融經濟問題，通過結合運用正倒向隨機微分方程，推導得到著名的非線性feynman - - kac公式，並且將相應的倒向隨機微分方程的解記為投資者的值函數，這也就是通常所說的效用值函數；接著我們可以證明此效用值函數為某一偏微積分變差不等式的連續粘性解，並且得到了比較原則；這些結果可以應用到金融領域用於消費投資組合的選擇或是美式期權的估值。
  9. L ) the existence of local solutions in the part of the existence of local solutions, we investigate the intial boundary value problems for the more general quasilinear system : we consider the existence of local solutions of the system ( 2 ) when it may be a cross - diffusion system and u g ( g is a open subset of rn ). in order to use the results of h. amann [ 1 ] on local existence for quasilinear systems ( 2 ), we find that the results of h. amann on the corresponding linear system were not proved completely. especially for the case of cross - diffusion systems ( 2 )

    1 ）局部解存在性在局部解存在性部分，我們研究的為更一般的擬線性耦合方程組的初邊值問題：我們研究了在u g （ g是使散度型方程組（ 2 ）中的系數矩陣a （ x ， u ）的特徵值實部大於零的區域）時散度型方程組（ 2 ）解的局部解存在性。在我們應用h . amann的局部解存在性理論時，我們發現h . amann的關于散度型方程組（ 2 ）局部解存在性理論的證明並不完整。
  10. For simplicity and from the properties of local fitting, we only show the asymptotic theory of the local linear estimations for the drift and diffusion functions respectively

    為簡單起見，我們只給出了局部線性估計的相合性和漸進正態性的證明
  11. Preprocessing of smoothing often brings about blurred image. in this paper, we add linear masks to the minutia preserving smoot - hing algorithm which based on solving a nonlinear diffusion equation. compared with other existing methods, this improved algorithm has better performance preprocessing of noisy images

    一般的平滑演算法往往因過度平滑使得圖像細節特徵模糊，針對這一情況，在傳統的基於偏微分方程的演算法中，加入對大麴率邊界點進行線性模板匹配的改進，對比現存的保邊界平滑演算法，實驗結果表明，改進的演算法優于其他演算法。
  12. Diffusion and transference of organic pollutants in water environment is a non - linear process which will be affected by many factors

    水環境中有機污染物的擴散遷移是一個由多種因素影響的復雜的非線性過程。
  13. An apparent activation energy of 182. 35kj / mol was obtained for the range of 1250 c to 1350 c, and that of 82. 32kj / mol for the range of 1350 c to 1400 c. at the same time, the relation between reaction velocity and reaction time is linear in the range of 1250 c to 1350 c, but it is a parabola curve in the range of 1350 c to 1400 c. so it can be concluded that the process undergone in the range of 1250 c to 1350 c is controlled by chemical reaction while that in the range of 1350 c to 1400 c by diffusion

    本實驗採用的試樣是以鈦白粉和活性碳按1 ： 30的比例混合料為原料，在6mp下成型為37 . 2 26mm的柱形樣塊，分別在1250 、 1350和1400于氮化爐中測定反應速率與時間的關系。當反應在1250 1350時，表觀活化能為182 . 35kj mol 160kj mol ，反應速率與時間的關系是線性的，說明此階段反應由化學反應控制。當反應在1350 1400時，表觀活化能為82 . 32kj mol 160kj mol ，反應速率與時間的關系符合拋物線方程，說明此階段反應由擴散控制。
  14. First. for linear systems in more general divergent form stated in [ 1 ], we give a complete proof on the generation of an analytic semigroup for the linear system by verifying the general sufficient condition on the analytic semigroup ( (. a, b, ) is a - regular elliptic bvp ), which make up for the insufficiency in the existence of local solutions which was established by h. amann [ 2 ]. thus the h. amann ' s theory on local existence and global existence of ( 1 ) is valid for cross - diffusion system ( 1 )

    所以我們首先利用h . amann [ 1 ]中給出的關于解析半群的充分條件（ （ a ， b ， ， ， ）是正則橢圓初邊值問題） 。詳細的證明了（ 2 ）對應的線性方程組生成解析半群，從而說明了h . amann的局部解存在性和整體解存在性理論在散度型方程組（ 2 ）中也是成立的，這在一定程度上彌補了h . amann [ 2 ]中局部解存在性理論證明的不完善。
  15. The construction of eco - industrial park ( eip ) is an important way to solve the question about pollution and shortage of resources and a new attempt to change the linear production method that causes the serious pollution and the shortage of resources. the long - term stability of eco - industrial park is the ultimate pursue of the constructor of eco - industrial park and an important research content of the researcher. this research first has carried on the summary to the eco - industrial park research and practice achievement, then introduced diffusion structural theory to analyse the structure and nature of eco - indurial park, and proposed the viewpoint that the key of maintaining the stability of eco - industrial park lies in adjusting the behavior of the eco - industrial park ’ s main body ? enterprise, government and community. in the third chapter. author proposed the eco - industrial park ’ s enterprise partner choice appraisal target and the appraisal method, then used gambling theory analysing the nature of enterprise ’ s cooperation in eco - industrial park and proposed the correlation suggestion about designing enterprise ’ s cooperation contract, finally analysed the enterprise ’ s most important cooperation project ? technology innovation cooperation analyzes and described the way of the eco - industrial park ’ s enterprise technology innovation. in the fourth chapter, author used the gambling theory and the econology theory analysed the government ' s role and behavior in maintending eco - industrial park ’ s stablity, and explaned and analysed the government ’ s four methods ? the economy, the law, the administration and the education method, then obtained the conclusion that the subsidy method is the government ’ s first choice. in the fifth chapter, author contrast the ecology industrial system and the natural ecosystem, and union related ethics and the sociological viewpoint to analyse the community ’ s role and behavior in maintending the stability of eco - industrial park, and put forward some proposals to community ' s behavior

    本研究首先對生態工業園區的理論研究與實踐成果進行了綜述，然後引入耗散結構理論分析了生態工業園區的結構和性質，提出並論證了保持生態工業園區穩定運行的關鍵在於調整好生態工業園區中的企業、政府和社區這三個行為主體的行為的觀點，並在第三、第四和第五章中對企業、政府和社區三方面對生態工業園區穩定性的影響分別進行了探討。在文章的第三章中提出了生態工業園區企業合作夥伴選擇的評價指標和評價方法、並使用重復博弈理論對園區中企業合作的性質進行分析和對企業合作的契約設計提出相關建議，最後對生態工業園區企業最重要的合作項目? ?技術創新合作進行了分析並描繪出園區企業技術創新的路徑。在文章的第四章中利用博弈理論和環境經濟學理論對政府在保持生態工業園區穩定運行過程中的角色和行為進行分析，對經濟、法律、行政和教育這四大手段進行了詳細的闡釋和分析，得出經濟手段中的補貼手段是政府保持生態工業園區穩定運行的首選方法的結論。
  16. In addition to showing the solution to linear qd and its analysis, one form of nonlinear qd is discussed. compared with other color diffusion techniques, considering the interactions between channel pairs, qd has the following advantages : 1 staircasing effect is avoided ; 2 as diffusion tensor, the image derivative is regularized without requiring additional convolution ; 3 less time is needed. experimental results demonstrate the effectiveness of linear and nonlinear qd applied to natural color images for denoising by both visual and quantitative evaluations

    雖然講四元數用於圖像處理已有了一些研究，但都是研究四元數傅立葉分析四元數小波分析或將簡化的四元數偏微分方程用於灰度圖像處理，而本文第一次將四元數擴散用於顏色圖像處理，這樣的好處包括： 1可以避免一般非線性擴散的階梯效應2四元數擴散不需要對圖像導數進行高斯卷積等歸整化操作3更為省時。
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