dynamic diffusion 中文意思是什麼
dynamic diffusion
解釋
動態擴散-
This article takes the basic of agrotechnical diffusion as the main line, regards the whole system of agrotechnical diffusion as a dynamic consecutive course, and divided the course into three sub - systems, viz. science and technological innovation, technical diffusion and technical application. the contact of the three depends on the flow of information in different course in the whole system
本文以農業技術擴散的基本路徑為主線，將整個農業技術擴散系統看做一個動態的連續過程，並將這個過程劃分為科技創新，技術推廣和技術應用三個子過程，它們在系統中的聯系是由信息在不同過程間流動來完成的。 -
The model characterizes many dynamic transport and complexation processes that include radial diffusion, excipient complexation and crystalline drug dissolution
模型利用徑向擴散，輔料絡合作用和晶體藥物的溶出度來表徵多個動力學運輸和絡合過程。 -
The authors analyzes the function change of urban in its evolvement and the eco - environmental problems caused by this change. based on this analysis and the method of systems ecology founded by odum h t, the authors discuss the aim and the principle of urban eco - environment planning under the sustainable development ; put forward the general view of urban eco - environment planning in which the kernel is the adjusting of industry structure, land - use structure and spatial pattern ; construct the dynamic simulating model of eco - environment planning of guangzhou city, china which organizes the models of economy, population, the equilibrium of carbon and oxygen, and other models of atmospheric diffusion, rainwater sedimentation, vegetation absorbing to so
在剖析城市演化歷程中的功能變遷與導引的生態環境滯脹類型和危害的基礎上，著重利用系統生態學的原理和方法，探討了可持續發展要求下的城市生態環境規劃的目標原理和研究的內容方法及過程提出了以產業結構土地利用結構和空間格局的調整為核心制定城市生態環境規劃的總體思路創造性地融大氣擴散雨水沉降和植被吸納so -
Based on an analysis of dynamic conditions for migration and precipitation of gold grains in water system and their diffusion in soil, this paper has advanced a discriminant formula for surfacce ore potential of gold anomalies from 1 : 50000 stream sediment survey, recounted methods for estimating the highest gold grade ores within the anomalies, calculated the discriminant indices for qinba area, and summed up index characteristics of ore - induced gold anomalies in 1 : 10000 soil survey, estimation formulae for orebody location as well as coefficients and constants of slope angles of various orders and grades
摘要在分析金粒在水系中運移、落淤和在土壤中擴散動力條件的基礎上，本文建立了五萬分之一水系沉積物測量金異常地表含礦性的判別公式，闡述了推算異常內礦石最高金品位的方法並計算了秦巴地區的判別指數；總結出萬分之一土壤測量礦致金異常的標志特徵、礦體定位的估算公式及各級次地形坡度角的系數和常數。 -
Abstract : a technical concept, “ reverse source quantity ”, based on artificial neural network, has been pointed out in order to carry out a numerical dynamic simulation on hydrocarbon diffusion process
文摘:提出實現烴類重氣泄散態勢的動態過程數值預測新構想基於人工神經網路的「反求源」技術。 -
Finally, this paper set up the substitute model between the new technology and the old one and studied characteristic of the diffusion system applied system dynamic method such as the stable points and phase portrait and hopf bifurcation and limit cycle of it. then studied the probability distribution function of them, and the probabilistic equation of this system
最後建立了四川大學碩士畢業論文創新技術和舊技術的技術更替模型，並運用系統動力學的方法分析了擴散系統在其不動點附近的變化特徵和相圖以及改進系統的hopf分支、極限環等性質，討論了新舊技術的概率分佈，並且將動力學方程轉化為概率方程進行分析。 -
The diffusion coefficient of bovine serum albumin ( bsa ) was studied by dynamic light scattering in different ionic strength solutions
利用動態光散射技術研究了牛血清白蛋白分子的擴散系數在不同強度離子溶液中隨著蛋白分子濃度變化的規律。 -
Based on the analysis of gas - solid multiphase catalytic reaction, the chemical reaction model is established. when the reaction is controlled by the chemical dynamic, the reaction rate is introduced by consideration of the adsorption and desorption effects. when the reaction is controlled by mass transfer, the diffusion coefficient is established which can present the flow rate increases in small reynolds domain ; for the internal diffusion, the internal diffusion coefficient is derived, and then the internal diffusion is coupled with chemical reaction to represent the phenomenon that the diffusion and the chemical reaction occur cocurrently
本文在考慮催化轉化器載體內發生的傳熱傳質現象的基礎上，建立了催化轉化器的一維單孔道和三維多孔道傳熱傳質模型;在分析載體內以氣-固多相催化反應為特點的工作機理的基礎上，建立了催化轉化器的化學反應模型:當催化轉化處于化學動力學控制區時，引入了考慮吸附、表面反應和脫附的表面化學反應速率公式，當催化轉化處于質量輸運控制區時，引入了決定外擴散能力的擴散系數公式和和決定內擴散速率的內擴散系數公式，並與化學反應速率相耦合，得出由擴散過程決定的化學反應速率公式。 -
Study of diffusion tube calibration gases preparation and dynamic volumetric method
擴散管標準氣體及其動態配氣方法的研究 -
It also studies the problem of real option pricing when the underlying assets follow the pure jump poisson, mixed jump - diffusion merton and mean - reversion model, and obtains the price formula or partial differential equation to price and hedge the real option. when the value of real option can not separate from the value of project, or the uncertainties are endogenous to real option holder, it is difficult to pricing the real option by the ways of no - arbitrage. in this paper we present a approach named valuation with comparison, its basic point is to value the project or program with flexibility by means of decision tree analysis ( dta ) and stochastic dynamic programming ( sdp ), and the results are compared with that of non - flexibility, finally,
當實物期權的價值不能從項目價值中分離出來，或者影響基本資產價格的不確定性內生於期權的持有者時，此時實物期權的價值一般難以直接利用無套利方法得到，本文通過對現有文獻進行歸納，提出一種比較定價法，其基本要點是利用決策樹、動態規劃法或二叉樹模型等技術來確定嵌有柔性的項目或方案的價值，然後將其與沒有柔性的項目或方案進行比較，從而獲得各種柔性的價值，作為這種方法的一個應用，本文研究了柔性勞動合約的設計與定價問題，研究表明，對企業重要員工採用長期勞動合約，而對一般員工採用短期合約可以節約勞動力使用成本。 -
Influence of some parameters are analyzed, such as : d ( diffusion rates ), v ( coefficient of convection ). double or three compartments model of soc is used. it is found that the diffusion process for different compartments of organic carbon in soil is very differently. this model could also calculated the accumulation of soc in soil per year, which is helpful to understand the dynamic process of organic carbon storage in soil
最後一章本論文對新老有機碳在土壤當中的遷移積累進行了數值模擬，分析了不同參數對有機碳擴散的影響，得到了不同年齡的有機碳在土壤中的分佈規律，這為進一步預估中國土壤中的有機碳動態變化打下了基礎。 -
In this thesis, a semi - classical model of the force on an atom is used to describe the motion of a two - level atom interacting with a standing wave laser field. the velocity dependent force and momentum diffusion are derived through optical bloch equations by using the matrix form of the continued fraction technique. by investigating the dynamic properties of atoms in laser field, we can control and manipulate the mechanical motion of an atom
本文利用半經典理論，從二能級原子在激光駐波場中所滿足的運動方程出發，推導出密度矩陣元所滿足的遞推關系，利用矩陣連分數方法求解出密度矩陣元，從而求出依賴于原子運動速度的光壓力與動量擴散系數，通過討論原子在激光場中的動力學行為，為原子在激光場中被囚禁、形成原子列陣以及可控制的量子態，從而為量子信息處理提供理論基礎。 -
In this paper, we established the stochastic evolvement models for innovation diffusion based on random graphs, small - world networks and scale - free networks, and studied the dynamic character of innovation diffusion
摘要分別建立了基於隨機網路、小世界網路和無標度網路的創新隨機演化模型，討論了創新擴散的動力學性質。 -
Considering the dynamic of spatial transfer of knowledge, the above learning mechanism for cluster also reflects the " knowledge induction - knowledge diffusion " model, which, if run efficiently, will promote clusters " knowledge base to extend and upgrade and their technological capability to continuously evolve. in fact, the formation and operation of the learning division mechanism for cluster has to need support from an extensive policy system, which is constituted of the policy of clustering enterprises, the policy of coordinating institution and public service institution and the policy of local government
事實上，集群技術學習的分工機制的形成和良好運轉需要一個廣義政策體系的支撐，因此本文最後從集群企業、集群中間機構和公共部門以及當地政府三個方面討論了該政策體系的設計問題，以更好地推動集群中的技術學習分工和集群技術能力演進。 -
In view of improving the efficiency of fertilizer, we paid more attention to the effect of water dynamic process and strength on nutrient availability. in this research, by model test, four kinds of agricultural soils were studied, concerning about the effect of drying - wetting alternation and temperature on potassium availability, ions " diffusion in soils under different levels of water content, and the distribution coefficient of potassium between solution and soil phases
因此，本研究通過室內模擬土壤水分的動態變化，對水分變化的過程（干濕交替不斷進行）和變化強度對養分有效性的影響，不同水勢狀態下養分離子在固、液相間的分配關系，以及不同水分條件下養分的擴散遷移規律等方面進行了探討。 -
Diffusion tensor imaging parameters dynamic change in acute cerebral ischemia of rats : experimental study
磁共振增強減影技術在結核性腦膜炎中的運用 -
The paper expounds on the following aspects. firstly, on the basis of analysis of current techniques for measuring plant water potential and with the dynamic characteristics of vapor diffusion in consideration, the relationship between the transient process of humidity at the position of the sensor and the water potential of the plant sample is studied in depth, and the corresponding testing apparatus for the on - line non - invasive automatic monitoring of plant water potential is designed
在仔細分析現有植物水勢測量技術原理及優缺點和所開發的植物水勢測量儀的基礎上，考慮植物水分擴散的動態特性，研究樣品水分無阻尼自然擴散，其上方空氣的暫態過程與水勢的關系，設計了研究植物水勢在線無創傷自動監測技術的試驗裝置。 -
The numerical simulation models for the three - dimensional wind field and concentration field are set up through solving the equations of atmospheric dynamic - thermodynamics and diffusion equation for a complicated terrain, which are verified by combining the practice of yunnan kaiyuan electric power plant
通過術解復雜地形上的大氣熱力- -動力學方程組及擴散方程，建立了三維的風場、濃度場的數值模擬模式，並以雲南開遠電廠為例對模式進行了驗證。 -
In the two - substance attenuate consistency problem, by means of constituting the compulsive convection function of diffusion process, as well as integrating adjoint function, the adjoint variational principle and its finite element method of two - substance attenuate consistency are deduced, and all kinds of dynamic conditions and their variational expressions are discussed
在二組元稀薄濃度問題中，通過構造擴散過程的強制對流項並結合伴隨運算元的有關理論推導了二組元稀薄濃度問題的伴隨變分原理及其有限元方法，同時討論了擴散問題的各類動力條件及其變分表達式。 -
Standard test methods for water vapor diffusion resistance and air flow resistance of clothing materials using the dynamic moisture permeation cell
使用動態透濕單元法測試布質材料耐水蒸氣擴散性和耐氣流性的標準試驗方法
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