溶質擴散 的英文怎麼說
中文拼音 [róngzhíkuòsǎn]
溶質擴散
英文
solute diffusion-
Transfer of soluble food materials might be accomplished by diffusion.
可溶性營養物質的轉移,可以通過擴散來完成。Using a dissolved conservative material as a tracer in the water, a three - dimension advection - diffusion water exchange numerical model was used to study the flushing time by discharge and the discharge dominated region of the yangtze estuary. the flushing time of the yangtze estuary is an important eigenvalue, which denotes the water environmental capability of estuary
然後應用以溶解態的保守性物質做為研究長江口水體交換的載體,建立了完全三維對流擴散型的長江口水體交換的數值模型,對長江口的水體交換時間做了一個整體的計算。Using a dissolved conservative material as a tracer in the water, a three - dimension advection - diffusion water exchange numerical model was used to study the flushing time by discharge and the discharge dominated region of the yangtze estuary based on the successful simulation of flow field
在成功模擬長江口流場的基礎上,同時應用以溶解態的保守性物質做為長江口水體交換的載體,建立了三維對流擴散型的長江口水體交換的數值模型,對整個長江口的水體交換規律進行了研究。In the low - temperature - freezing stage, the water is frozen as ice phase, while the solute precipitate as the salt phase. the velocity of ice phase growth ( vf ) in the solution and the velocity of solute diffusion ( vd ) decide that whether the heavy segregation of solute appears
當低溫冷凍時,水以冰的形式凍結,溶質則以鹽的形式析出,形成冰鹽兩相;冰相生長速率和溶質擴散速率決定了溶質鹽是否發生大的偏聚。Abstract : in this article, starting from solute s transport a nd diffusion equati on, aiming at the saturation state of liquid in homogeneous soil of impermeable stratum and on the condition that lots of saturated solute ( e. g. nutriment ) on t op of the soil maintain diffusion, a strict mathematical deduction is carried ou t, and the analytical solution of solute s concentration distribution in homogeneous s o il is given
文摘:從溶質輸移擴散方程出發,針對強透水層上均質土壤的液體飽和狀態,在頂層含有大量飽和溶質(如養分等)維持著滲透擴散的條件下,進行嚴密的數學推證,給出均質土壤中溶質濃度分佈的解析解。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。Oxygen diffusion transport and electrochemical reaction in the oxygen cathode of alkaline fuel cell ( afc ) and pemfc have been expressed with the tffa model, including oxygen transferring in gas channel of gas diffusion layer and reaction layer, oxygen dissolution and diffusion in thin - film of reaction layer, oxygen reaction and diffusion in flooded - agglomerate of reaction layer and the conduction of electron and ion. numeric algorithm of the model equations is also obtained
本文將tffa模型應用於堿性燃料電池( afc )和質子交換膜燃料電池( pemfc )陰極,推導出陰極各種傳遞和反應過程的描述方程,包括氧氣在氣體擴散層和反應層氣體通道中的擴散,氧氣在反應層薄膜中的溶解和擴散,氧在反應層浸漬聚集體中的反應和擴散以及電子和離子的傳導,並給出方程的數值解法。No is an intercellular messenger synthesized from l - arginine by no synthase ( nos ). as a liposoluble gas, no can affect other tissues by diffusion after produced in local tissue in the brain
體內的no是由no合成酶( nos )催化l -精氨酸而產生的,是一種結構簡單、易擴散的高脂溶性氣體物質。This paper take the conditions of tarim as an example, calculate quantity of gas generation, residual gas hydrocarbon, gas adsorption, gas dissolving in oil, gas dissolving in water, and gas diffusion under different geologic conditions, then according to the principle of material balance, work out gas expelling quantity
本文以塔里木盆地地質參數為例,計算了不同地質條件下氣源巖的生氣量、殘留氣態烴量、吸附氣量、油溶氣量、水溶氣量、擴散氣量,進而根據物質平衡法計算出排排氣量。Since the generated gas from gas source rocks is expelled in the form of separate phase, can it be useful for the form of pool. so, the expelling gas value of carbonate gas source rocks is more important, this paper, based on the principle of material balance, divide the tough problem of expelling hydrocarbon into relatively and easily investigated problems of gas hydrocarbon generation, residual and diffusion gas hydrocarbon and evaluate gas source rocks in temis of the magnitude of expelling gas ; hydrocarbon ( quantity of expelling gas = gas quantity of generation - adsorption - dissolving in oil - dissolving in water - diffusion )
由於所生成的氣態烴只有從源巖中以游離相運移出來之後才能對氣藏的形成做出貢獻,因此對氣源巖的排氣能力的評價顯得猶為關鍵。本文根據物質平衡法原理將比較棘手的排氣態烴問題,分解成相對較易考察的生氣態烴問題和殘留、耗散氣態烴的問題,以排氣量大小(排氣量=生氣量?吸附氣量?油溶氣量?水溶氣量?擴散氣量)為評價碳酸鹽巖氣源巖標準。Abstract : water solution polymerization and precipitation polymerization of ethenyl radical monomers were carried out at same conditions, and the differences between the products in molecular weight and other aspects were investigated
文摘:針對目前溶液聚合體系中、後期粘度高,熱擴散不利,從而影響分子量提高的問題,進行乙烯基類單體在同等條件的水溶液聚合及沉澱聚合,比較了獲得的聚合物產物在分子量及應用性質上的差異。Systematically investigate the hydrocarbon generation of organic matter ( oil and gas generation from organic matter and oil to gas ), residual hydrocarbon of source rocks ( residual liquid hydrocarbon of rocks, gas adsorption of rocks, gas dissolving in oil and gas dissolving in water ) and gas diffusion etc. take the conditions of tarim as an example, calculate quantity of oil and gas generation, residual liquid hydrocarbon, gas adsorption, gas dissolving in oil, gas dissolving in water, and gas diffusion under different geologic conditions, then according to the principle of material balance, work out oil expelling and gas expelling quantity
對評價中遇到的有機質生烴(有機質成油、成氣、油成氣) 、源巖殘留烴(巖石殘留液態烴、巖石吸附天然氣、油溶氣、水溶氣) 、天然氣擴散等問題進行了較為系統的研究,並以塔里木盆地地質參數為例,計算了不同地質條件下烴源巖的生油氣量、殘留液態烴量、吸附氣量、油溶氣量、水溶氣量、擴散氣量,進而根據物質平衡法計算出排油量、排氣量。Regard particle chemical fertilizer ( nitrogen or the nitrogen phosphorus compound fertilizer, etc. ) as core, top layer coating one low water soluble or as becoming the membrane material inorganic substance or organic polymer of person who dissolve a little, spread or wraps up the membrane to resolve gradually but releases nutrients through the bag membrane
產品簡介:以顆粒化肥(氮或氮磷復合肥等)為核心,表層塗覆一層低水溶性或微溶性的無機物質或有機聚合物作為成膜物質,通過包膜擴散或包膜逐漸分解而釋放養分。Passive diffusion : in this process, transport across a cell membrane depends on the concentration gradient of the solute
被動擴散在被動擴散過程中,跨細胞轉運依賴于溶質濃度梯度。Using these approaches, diffusion coefficients were obtained for the first time for complexes under tensile stress condition and no stress condition respectively
用這些計算方法,首次從實驗上求得了空位與溶質原子復合體分別在低張應力狀態和無應力狀態下的擴散系數。Vacancy - solute atom complexes diffusion and non - equilibrium segregation in alloy steels
溶質原子復合體擴散與非平衡偏聚Special attention is paid to the consequences of methanol crossover in cathode reaction and cathode over - potential. good agreement is found between simulations and experiments in regard to the v - i character of dmfcs. based on the theory of parallel electrode reaction, it becomes possible to obtain quantitatively the value of over - potential caused by methanol crossover, which is either implicit or not included in the overall cathode over - potential in previous models
該模型涵蓋了dmfc中的主要物理化學過程,包括:甲醇水溶液在膜電極內的擴散、對流和電遷移;質子在陽極催化劑層和陰極催化劑層內的傳遞;氧氣、水蒸汽在陰極的擴散;陽極催化劑層內的甲醇氧化反應動力學;以及陰極催化劑層內的氧還原和甲醇氧化反應動力學。For the first time, take tarim basin as an example to establish theoretical, industrial threshold value of organic enrichment of carbonate source rocks. calculate gas quantity of generation, adsorption, dissolving in oil, dissolving in water, diffusion of unit area carbonate rocks at different geologic conditions. and then according to the material balance principle, figure out the corresponding organic carbon content when gas being started expelling from source rocks with separate phase
分別計算了不同地質條件下單位面積碳酸鹽巖的生氣量及源巖和圍巖各種形式的殘留和耗散氣量(吸附氣量、油溶氣量、水溶氣量、擴散氣量) ,進而根據物質平衡原理計算出源巖開始以游離相有效排氣時所對應的有機碳含量,並將它作為該地質條件下氣源巖的有機質豐度理論下限值。Calculate gas quantity of generation, adsorption, dissolving in oil, dissolving in water, diffusion of unit area carbonate rocks at different geologic conditions. and then according to the material balance principle, figure out the corresponding organic carbon content when gas being started expelling from source rocks with separate phase. regard it as the theoretical threshold value ( tocmin ) of gas source rocks at that same geologic condition
分別計算了不同地質條件下單位面積碳酸鹽巖的生氣量及源巖和圍巖各種形式的殘留和耗散氣量(吸附氣量、油溶氣量、水溶氣量、擴散氣量) ,進而根據物質平衡原理計算出氣源巖開始以游離相有效排氣時所對應的有機碳含量,並將它作為該地質條件下氣源巖的有機質豐度理論下限值。Take the liquid - liquid transient mass diffusion for granted, experiments on fast transient mass diffusion between a nacl solution and pure water was conducted. with the experimental results, the physical mechanism of fast transient mass diffusion was revealed
以液體與液體間的快速瞬態擴散傳質問題為例,對nacl溶液和純水快速接觸的瞬態擴散傳質問題進行了實驗研究,根據實驗結果,揭示了快速瞬態分子擴散過程中質量傳遞物理機制。分享友人