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- Molecular dynamics simulations have been carried out for mixtures of Lennard-Jones fluids. Selfdiffusion coefficients and mutual diffusion coefficients have been obtained for Ar and Ar/Kr mixture. 采用分子動(dòng)力學(xué)(MD)模擬的方法;計算了模型流體氬及氬/氪溶液的自擴散系數和互擴散系數;及其與溫度的關(guān)系.
- Prediction of mutual diffusion coefficients in polymer solutions using UNIFAC-relat-ed activity coefficient model UNIFAC-ZM活度系數模型預測聚合物溶液中溶劑擴散系數
- The moisture diffusion coefficient was increased at the early drying sta... 隨后,隨含水率逐漸降低呈逐步減少趨勢。
- Since a mutual diffusion between adhesive layer and matrix and a innerstress on interfaces exist,there is a optimal thickness of adhesive layer in composites. 由于聚合物粘接層和基體聚合物的相互擴散以及界面內應力的存在,復合材料中存在一個(gè)最佳的聚合物粘接層。
- The diffusion coefficient of RaA atoms,being 0.071cm~2/s,was determinedusing two-filter wall deposition method. 采用壁沉積方法;測得 RaA 的擴散系數 D=0.;071cm~2/s。
- The longer time and the bigger convection and diffusion coefficient was,the bigger the polluted region. 作用時(shí)間越長(cháng),擴散系數越大,污染物影響范圍越大,質(zhì)量濃度值越高。
- Results Increasing vascular permeability coefficient P and the drug diffusion coefficient D, AUC will increase. 結果增大腫瘤間質(zhì)中毛細血管對藥物的通透性P,提高藥物在腫瘤間質(zhì)的擴散系數D,AUC的值均增大。
- The effective diffusion coefficient and rate constant of intraparticle transport were calculated. 求出了顆粒內有效擴散系數和顆粒內擴散速率常數。
- Diffusion coefficient can be deduced from matano method using electronic microprobe. 采用電子顯微探針?lè )?,“俁野”數值方法推導出擴散系數。
- The impurity concentration profile depends on epitaxy growth velocity, growth time and impurity diffusion coefficient. 如果雜質(zhì)的擴散系數很小,雜質(zhì)在外延層中的深度分布是均勻的。
- The effective diffusion coefficient of water-solubility chloride ion in GBC concrete is 17% of that in the OPC. GBC混凝土比普通混凝土具有更強的抗氯離子擴散性能,其水溶性氯離子有效擴散系數只有普通混凝土的17%25。
- At the same sintering temperature, the diffusion coefficient during the PCH process is larger than that of HP. 燒結溫度越高,元素的相對擴散系數越大;相同燒結溫度下,PCH樣品的相對擴散系數要高于HP樣品,即PCH過(guò)程中原子擴散要快于HP過(guò)程。
- To calculate distribution of sediment concentration in vertical under wave and current, a model of silt diffusion coefficient distribution in vertical is set up. 為了計算波流共同作用下含沙量沿垂線(xiàn)的分布,建立了沿垂線(xiàn)分布的泥沙擴散系數模型。
- Aim: To explore apparent diffusion coefficient (ADC) in the diagnosis of infarction core and ischemic penumbra(IP) affter acute cerebral infarction. 探討磁共振表觀(guān)擴散系數(adc)值對急性期腦梗死核心和缺血半暗帶(IP)的診斷價(jià)值。
- The experimental results show that surface mortar layer can significantly reduce the chloride ion diffusion coefficient of concrete. 結果表明,致密的表面砂漿層能顯著(zhù)地降低混凝土本體的氯離子擴散系數。
- The chemical diffusion coefficient DLi Versus lithium content x in CoFe3Sb12 has been examined by EIS for the first discharge. 采用交流阻抗方法研究了Li~+在CoFe_3Sb_(12)電極中的擴散系數D_(Li)。 。
- In case of Newtonian flow, the effective diffusion coefficient obtained by this method is perfectly in agreement with the result by Aris. 在牛頓流體情況,本方法得到的等效擴散系數和Aris的結果完全相同。
- Because natural gas and water have different relaxation time and diffusion coefficient,we can use DSM and SSM to identify them. 由于天然氣和水的弛豫時(shí)間和擴散系數的差異,可以利用差譜分析法(DSM)和移譜分析法(SSM)來(lái)識別天然氣。
- According to Fick's law under the constant carbon potential and diffusion coefficient D that has nothing to do with the distribution of ... 根據菲克定律,在恒定攻勢、擴散系數D與聯(lián)濃度分布無(wú)關(guān)且為常數的條件下,給出了滲層政濃度分布的數學(xué)模型。
- Purpose: To retrospectiely assess the apparent diffusion coefficient (ADC) for prediction of malignancy and prognosis of malignant astrocytic tumors. 目的:回顧性分析表觀(guān)彌散系數預測惡性星形細胞瘤的分級與預后方面的價(jià)值。