theory diffusion 中文意思是什麼

theory diffusion 解釋
擴散理論
  • theory : n. 1. 理論，學理，原理。2. 學說，論說 （opp. hypothesis）。3. 推測，揣度。4. 〈口語〉見解，意見。
  • 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. Many of the above-mentioned trends can be rationalized in terms of quasi-steady diffusion theory.

    上述的許多問題可用準穩態擴散理論加以推理。
  2. Photon diffusion theory and its application in biomedicine

    光子擴散理論及其在生物醫學中的應用
  3. In the part of theory study, based on the research fruit which the scholars before had made, from the competition ' s and competitiveness ' s initial definition, the essential connotation can be dredged up. depend on the analysis of the charter and function, the city ' s functions can be definituded as which cluster is means and diffuse is purpose. that is, the function of cluster can streghten through diffusion, the integrative competitiveness advantage reflects those functions together flatly. so, based on the shanghai social & science academe ' s and ni pengfei ' s urban competitiveness model - - goss, quality and flux can be used to contain the abundance content of urban competitiveness, as a result, the urban competitiveness indicator system can be established

    在理論研究部分，在整合前人研究成果的基礎上獨辟蹊徑，從競爭和競爭力的原始定義出發挖掘城市競爭力的基本內涵，通過對中心城市特徵和職能的分析，明確了城市經濟集聚的目的是為了擴散，擴散才能進一步增強集聚的能力，而綜合競爭力的優勢則恰恰在這一點上集中反映了城市集聚和擴散功能的強弱；最後借鑒上海社會科學院和倪鵬飛的研究模型? ?用總量、質量和流量三個一級指標來涵蓋城市競爭力的豐富內容，並由此架構評價指標體系。
  4. The boundary condition at bed surface of diffusion equation of nonuniform sediment is derived based on the concept of exchange intensity of stochastic theory by the author

    摘要文中首先給出了由我們建立的床面泥沙交換理論導出的非均勻沙擴散方程的邊界條件。
  5. In chinese medicine theory, the pathogenesis of bph is associated with qi transformation of the triple burner, impaired diffusion and downbearing of the lung, unable to govern regulation of the waterways, the splenic transformation failure and unable to upbear the clear and downbear the turbid, damp - heat pouring down into the bladder, kidney vacuity and yang debilitation, qi transformation disturbance of lower burner, so the bph is caused by the disturbance of qi transformation in the lung, spleen and kidney triple burner

    前列腺增生病的發病機理，中醫學認為與三焦氣化功能有關。肺失肅降，不能通調水道下輸膀胱：脾失健運不能升清降濁，濕熱下注膀胱腎陽虛衰，下焦氣化失司，致開閡不利。故前列腺增生病是肺脾腎三臟三焦氣化失調所致。
  6. The microstructure, structure, composition, phase of joint region, and the microstructure and composition of fracture have been analyzed using the equipment of metallurgical microscope, sem, eds, xrd and binary eutectic phase diagram for the al - cu system and diffusion theory

    利用金相顯微鏡、掃描電鏡、能譜儀、 x射線衍射分析儀，結合al - cu二元合金相圖及擴散理論，分析了接頭區域的形貌、組織、成分、相組成，以及斷口形貌、成分。
  7. Based on the theory of technical innovation and technical innovation diffusion elaborated, as well as fluxionary calculus and game theory, the thesis analyses corporation adoption with game theory in the process of technical innovation diffusion : analyzes in the situation of information symmetry and information asymmetry the gambling between the supplies and the latent users of innovation, discusses the mechanism of the phenomenon " reversion choice " with emphasis in the situation of information asymmetry, and also introduces signal transmission model and information screen model to realize pareto improvement ; at the same time it analyzes in the situation of complete rationality and limited rationality the gambling between the latent users of innovation

    依據已闡述的技術創新和技術創新擴散理論，以及微積分、博弈論等相關理論，對技術創新擴散中企業採用行為進行了博弈分析:分析了信息對稱和信息不對稱情況下創新供給者與創新潛在採用企業之間的博弈，重點討論了信息不對稱時「逆向選擇」現象發生的機理，並引入信號傳遞模型和信息甄別模型以實現帕累托改進;同時分析了完全理性和有限理性情況下創新潛在採用企業間的博弈。
  8. Image and vision computing, 1999, 17 : 201 - 212. 9 tang b, sapiro g, caselles v. diffusion of general data on non - flat manifolds via harmonic maps theory : the direction diffusion case

    通過對線性四元數擴散方程的近似解進行研究，證明了當方程的參數在一定范圍內可以具有對于顏色圖像導數的歸整化。
  9. On theory, based on the latest research of the international neuro - physiologist and psychologist on no, we detail several important results highlighting the role of source structure in the diffusion process, such as point source, hollow sphere source and irregular structure. second, we have had a advanced research on self - organizing feature maps. and some qualities of sofm have been analyzed

    理論地，在國際神經生理學、心理學與醫學關于內源性一氧化氮（ no ）最新研究的基礎上，深入分析一氧化氮的非局部擴散遞質和逆轉錄信使的特性，同時針對模型的不同結構（包括對稱形狀和不規則形狀）給出模擬結果。
  10. The voltage of lithium - intercalation reaction, impedance and structural stability of intercalation - type cathode material were analysed and calculated. theoritical results show that the reaction voltage depends on the content of lithium and the bond energy, and that the key ways to lower the electrode impedance are to increase the electronic conductivity of the electrode and the diffusion coefficient of lithium ion in the host and to decrease the size of powder. in addition, the thermal stability of lithium - insertion structure can be improved by using crystallographic co - lattice theory and doping treatment

    本文從嵌入式陰極材料的嵌鋰反應的電壓、阻抗及結構穩定性的分析和理論計算著手，得到了電壓取決于基體中各種離子間的鍵能及鋰含量、降低電極阻抗的關鍵是提高電子型導電性和li ~ +在基體中的擴散系數及減小粉末粒度的理論依據及其利用晶體的共格原理和摻雜改性的方式來提高材料嵌鋰結構的熱穩定性的設計思路。
  11. By adopting the optical diffusion communication technology and ppm coding theory, the paper presents a new method to build a wireless lan that is fit for broad communication with so many advantages, such as high security, huge capacity and freeing from frequency limitation

    論文涉及了計算機網路通信和光通信兩個不同的技術領域，較全面地分析研究了基於光散射通信技術組網所涉及到的多方面、多學科的理論與技術。
  12. On the basis of the safety system engineering theory. applying the dow fire & explosion index and the normal stability gauss mathematical diffusion model etc., combining with the practice of mouping port, the hazards during the handling and storage of liquid chemicals in bulk have been analyzed and the risks of fire explosion and leakage ( including water pollution and water pollution ) have been assessed. taking into account of insufficient consideration of the human factor in the dow fire & explosion index, the soft compensation coefficient has been raised

    本文以安全系統工程為理論基礎，運用道氏火災爆炸指數法、平均運動方程組以及常穩態高斯數學擴散模型，結合牟平港散化運輸、裝卸的實際，對牟平港散化儲運的火災爆炸危險性和毒物泄漏危險性（包括水污染性和大氣污染性）進行了定性和定量的分析評價。在評價程序上，針對道氏火災爆炸指數法中對人為因素和管理水平等考慮不足的問題，提出了軟補償系數的概念，找出了散化碼頭日常監督管理工作的重點。
  13. It is described that the innovatory technology of selective diffusion and study on surface passivation in theory for crystalline silicon solar cell

    本文的主要內容是介紹晶體硅太陽電池選擇性擴散新工藝和表面鈍化的理論研究。
  14. The theory and experiment of measuring diffusion coefficients in terms of mr signal attenuation has been established for decades, but recent advance of diffusion tractography has enabled us, for the first time, to visualize and analyze the axonal fiber tracts in the living brain non - invasively

    其實，利用磁振訊號衰減量測到擴散系數之理論與實驗已確立了幾十年，但近年來擴散神經纖維束造影的發展，第一次使我們能夠在活體非侵襲性的觀察和分析神經軸突纖維束。
  15. By introducing the diffusion caused by sediment colliding, the diffusion theory is revised, and the equation for sediment concentration distribution is derived from theory analysis

    進而在引入顆粒碰撞擴散的基礎上，對泥沙顆粒擴散理論進行修正，從而在理論上得到了挾沙水流泥沙含量分佈規律的公式。
  16. At same time macroscopical and microcosmic mathematical model of nitridation are investigated. in this paper the thermodynamics of direct - nitridation, effect of temperature and nitrogen ambience on nitridaton and self - diffusion are discussed in the theory of physical chemistry in detail

    同時本文用物理化學的原理討論了矽片氮氣直接氮化的熱力學方程、氮化條件的理論根據和原子的自擴散，從理論上證明隨溫度升高氮化加劇，氣氛純度越高氮化越容易的結論。
  17. The contents of this paper include the following several aspects : ( 1 ) a model of the fractures leakage is built through counting and analyzing the wealthy geological records of hae field, and a model of the fracture water transporting is also built according to the fracture water condition of its recharge and its runoff and its discharge in hae field ; ( 2 ) this paper studies the chemical behavior and the migration parameters of the elenent sr2 + in ground water in hae field, the main contents include : the presence form of the element sr in ground water is analyzed by way of the rmodynamics ; the absorption mechanism that granite and sand stone absorbs sr element is analyzed based on theory and experiment test the diffusion parameters of the element sr in water and in granite and in sand stone are researched with laboratory experiment test ; the partition coefficient of sand stone and granite to sr is tested by the batch way

    其研究內容包括以下幾個方面： （ 1 ）通過對我國hae預選處置場豐富地質資料的大量統計和分析，建立了該處置場的基巖裂隙滲透模型。再根據hae預選處置場基巖裂隙水的補給、徑流、排泄條件及水位動態特徵，建立了預選處置場基巖裂隙水水運動模型。 （ 2 ）對高毒性鍶元素在我國hae預選處置場地下水中的化學行為和遷移參數進行系統的研究，其中主要包括運用熱力學方法分析了鍶元素在地下水中的存在形態，利用理論分析與實驗測試相結合的方法分析了花崗巖和砂巖對核素鍶的吸附機制，採用室內實驗裝置研究了核素鍶在地下水中的擴散參數以及在花崗巖和砂巖中的本徵擴散參數，採用靜態批式法研究了鍶在砂巖和花崗巖中的分配系數。
  18. In the section 2, firstly based on the diffusion approximation theory, the temporal characteristics of the reflectance and the transmittance were theoretically analyzed in turbid tissues ; secondly, the curves were simulated that the intensity and the pulse shape of the time resolved reflectance and transmittance versus the absorption a, the scattering s and the anisotropy coefficient g in two different boundary conditions : semi - infinite turbid media and homogeneous slab ; at last, the optical properties can be derived from the curves ; in the section 3, the conditions of ultra short laser pulses of different pulse - width and shapes has been theoretical analyzed and calculated, besides, the simulated the curves of the intensity and pulse shapes of the reflectance and transmittance in a homogeneous slab are obtained for use and future studying

    第二章中首先根據漫射近似理論對超短脈沖在以生物組織為典型的混濁介質中傳輸進行了理論分析，然後對兩種邊界條件下產生的漫反射、漫透射光脈沖強度和形狀隨各光學特性參數的變化情況進行了數值模擬，最後得到了混濁介質的光學特性參數與漫反射、透射脈沖強度與形狀的關系曲線。第三章對不同形狀和脈寬的脈沖光源入射到混濁介質中產生的漫反射、漫透射脈沖的強度和形狀進行了理論分析和數值模擬，並將高斯脈沖與方波脈沖情況進行了對比，得到了各種情況的漫反射、漫透射脈沖強度、形狀與各光學特性參數的關系曲線，這對從分析脈沖形狀中提取介質的光學特性參數的信息有重要的意義。
  19. The various medium parameters have different influence on the reflection of the laser pulse. based on the diffusion approximation theory, the boundary condition of semi - infinite homogeneous media, the influence of the absorption a, the scattering s and the anisotropy coefficient g on the ultra short laser pulse of different pulse - width and shapes has been researched

    論文對超短脈沖在混濁介質中的傳輸進行了理論分析和數值模擬，並在不同脈寬的高斯脈沖和方波脈沖入射到混濁介質的漫反射、漫透射脈沖強度和形狀進行了理論分析和數值模擬，得到了它們與各光學特性參數的關系曲線。
  20. Singular boundary value problems for nonlinear ordinary differential equations, which arise in a variety of areas such as mechanics, boundary layer theory, diffusion and reaction equations, biology, ect, become an im - potant topic in ordinary equations fields

    非線性常微分方程奇異邊值問題來源於力學，邊界層理論，反應擴散過程，生物學等應用學科中，是微分方程理論中一個重要的研究課題
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