molecular diffusion 中文意思是什麼
molecular diffusion
解釋
分子分散-
Constructing quantitative model with ordinary differential equations for the cell - cycle control system, it is appropriate to use ordinary differential equations ( odes ), because molecular diffusion, transcription, translation and membrane transport seem to be fast ( a matter of seconds ) compared with the duration of the cell cycle ( hours ). spatial localization of reactions can be handled by compart - mental modelling, in the spirit of pharmacokinetics
對于這樣的細胞周期控制系統，應用常微分方程是適合的，因為比起細胞周期的時間（以小時計）來，分子擴散，轉錄，翻譯和膜運輸是很快的（以秒計應用藥物動力學的區域化模型的方法，可以處理反應的空間分佈。 -
Research interest : surface science ; kikuchi electron holography ; electron multiple - scattering techinques ; molecular dynamical simulations ; ab initio total energy calculations ; self - diffusion on metal surfaces ; dissociative adsorption of h2 on metal surfaces
研究興趣:表面科學，電子全像術，電子多重散射分析理論技術，分子動力學模擬，第一原則總能量計算，表面原子動態學，氫分子的解離吸附。 -
The lower boundary of the region above which molecular diffusion dominates is 120 km altitude and is known as the turbopause.
分子擴散佔主導地位的區域下界約在120公里處稱為湍流層頂。 -
Topics include : molecular and turbulent diffusion, boundary layers, dissolution, phase partitioning, bed - water exchange, air - water exchange, settling and coagulation, buoyancy - driven flows, and stratification in lakes
探討課題計有:分子和紊流擴散、邊界分層、溶解、相之間的分割、底床與水間的交換作用、空氣與水間的交換作用、沉降和混凝、浮力流以及湖泊分層作用。 -
According to gaseous " molecular kinetic, the mass diffusion rate is within finite value. so theoretical conclusion of mass flux ' s producing and the essential relation of flux vs. force could be drawn. with the assumption that local density states in near equilibrium and the distribution is gradual changed, the classical first pick ' s law was modified considering mass relaxation time
根據氣體分子運動論對質量傳播速度為有限值情況下的質量流的產生及流與力之間的本構關系作了理論推導，在假定局域濃度處于近平衡態，其分佈為漸進的情況下得到了考慮質量鬆弛作用的經典fick第一定律的修正式。 -
Likewise, diffusion-controlled processes such as gas permeability are all dependent, to some extent, on molecular orientation and crystallinity.
同樣，擴散控制諸如透氣在一定程度上取決于分子排列和結晶度。 -
Topics covered include : mass transport through membranes ( diffusion, osmosis, chemically mediated, and active transport ), electric properties of cells ( ion transport ), equilibrium, resting, and action potentials, kinetic and molecular properties of single voltage - gated ion channels
內容包括：細胞膜上的物質傳輸（擴散、滲透、化學為媒介的傳輸以及主動傳輸） ；細胞的電子特徵（離子傳輸） 、平衡、靜息和動作電位；單個電壓門控離子通道的動力學和分子特性。 -
For low carrier-gas velocities the hetp may become large owing to molecular diffusion effects.
載氣線速低時，HETP是靠分子擴展影響而變大。 -
For low carrier - gas velocities the hetp may become large owing to molecular diffusion effects
載氣線速低時， hetp是靠分子擴展影響而變大。 -
When the graft ratio was high, the hydrophilic side chain was long and the molecular mass of the main chain of the hydrophilic matrix was great, the diffusion of pp - g - peg in pp blends would be poor, and the diffusion coefficient would also be small
接枝率越高、親水性側鏈的長度越長，親基體主鏈摩爾質量越大，接枝共聚物在聚丙烯共混體系中的遷移擴散性能越差，擴散系數越小。 -
The study indicates that, the slippage effect is a combined result of gas molecule slip on capillary wall and gas molecular diffusion inside capillary tube, and also a result of combination of concentration and pressure fields
研究認為，氣體滑脫效應是毛細管壁處氣體分子滑流和毛細管內部氣體分子擴散的綜合效應，是濃度場和壓力場作用疊加的結果。 -
These microlites and richer amorphous region will benefit the polycondensation reaction of pet, the diffusion of volatile by - products, and the approach of the end - groups of pet molecular chains by forming more routeways, which may result in the higher rate of ssp
作者認為這些更多數量的微晶體有利於固相縮聚過程中副產物小分子的擴散去除及pet大分子鏈端基的擴散接近，從而在宏觀上表現為pet mmt的固相縮聚速率大大提高。 -
Molecular diffusion induced by temperature is thermal diffusion, and that from an external field is forced diffusion
由溫度引起的分子擴散稱為熱擴散，由外場力引起的擴散稱為強制擴散。 -
Ca2 + ions from the reactants attended to be absorbed in the diffusion dilayer by the so3 - anion. calcium ions could compress the diffusion dilayer and reduce the aggregation number of aot molecular because of the higher charge density. the absorbance of ca2 + ions change of phase diagram of system and water core diameter
反應試劑溶液中的ca ~ （ 2 + ）離子傾向于被吸附在aot極性頭基的- so _ 3 ~ -陰離子附近，壓縮了極性頭基水解產生的擴散雙電層，使得aot分子的聚集體變小，也使得處于束縛狀態的水分子數量減少。 -
Combing the experimental results, the quantitative research was done for the non - fick effects during fast transient molecular diffusion
結合實驗結果，對快速瞬態分子擴散過程中表現出來的非fiek效應問題作了定量的理論研究。 -
Molecular diffusion is the predominant mechanism controlling volatile organic compounds transport within the composite liner
有機揮發性化合物在復合襯里中遷移時，其主要的機理是分子擴散作用。 -
Since the novel m41s mesoporous materials ( particularly mcm - 41 ) was firstly reported by mobil ' s researchers, much attention has been paid to this kind of materials. they have not only larger surface area, uniform pore structure and huge pore volume, which can reduce bottleneck phenomenon in molecular diffusion, but also higher mechanically and chemically stability as new inorganic materials. these materials have been widely used as catalysts, sorbents and separation materials as they were synthesized firstly
介孔材料作為一種新型功能材料，由於其具有較大的比表面積、長程有序的孔道結構、較大的孔容、良好的擴散性能和能夠減小分子擴散中的瓶頸效應等特點，以及作為無機材料所具有的機械和熱穩定性，所以自1992年mobil公司開發研製了以mcm - 41為代表的m41s系列介孔材料以來，被廣泛應用於催化、吸附和分離等領域。
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