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- Keywords Polypyrrole;charge transport;chronocoulometry;apparent electron diffusion coefficient; 聚吡咯;电荷传输;计时库仑法;电子表观扩散系数;
- electron diffusion coefficient 电子扩散系数
- The moisture diffusion coefficient was increased at the early drying sta... 随后,随含水率逐渐降低呈逐步减少趋势。
- The diffusion coefficient of RaA atoms,being 0.071cm~2/s,was determinedusing two-filter wall deposition method. 采用壁沉积方法;测得 RaA 的扩散系数 D=0.;071cm~2/s。
- The longer time and the bigger convection and diffusion coefficient was,the bigger the polluted region. 作用时间越长,扩散系数越大,污染物影响范围越大,质量浓度值越高。
- Results Increasing vascular permeability coefficient P and the drug diffusion coefficient D, AUC will increase. 结果增大肿瘤间质中毛细血管对药物的通透性P，提高药物在肿瘤间质的扩散系数D，AUC的值均增大。
- The effective diffusion coefficient and rate constant of intraparticle transport were calculated. 求出了颗粒内有效扩散系数和颗粒内扩散速率常数。
- Diffusion coefficient can be deduced from matano method using electronic microprobe. 采用电子显微探针法，“俣野”数值方法推导出扩散系数。
- The impurity concentration profile depends on epitaxy growth velocity, growth time and impurity diffusion coefficient. 如果杂质的扩散系数很小，杂质在外延层中的深度分布是均匀的。
- 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强的抗氯离子扩散性能，其水溶性氯离子有效扩散系数只有普通混凝土的17%25。
- At the same sintering temperature, the diffusion coefficient during the PCH process is larger than that of HP. 烧结温度越高，元素的相对扩散系数越大；相同烧结温度下，PCH样品的相对扩散系数要高于HP样品，即PCH过程中原子扩散要快于HP过程。
- To calculate distribution of sediment concentration in vertical under wave and current, a model of silt diffusion coefficient distribution in vertical is set up. 为了计算波流共同作用下含沙量沿垂线的分布,建立了沿垂线分布的泥沙扩散系数模型。
- Aim: To explore apparent diffusion coefficient (ADC) in the diagnosis of infarction core and ischemic penumbra(IP) affter acute cerebral infarction. 探讨磁共振表观扩散系数(adc)值对急性期脑梗死核心和缺血半暗带(IP)的诊断价值。
- The experimental results show that surface mortar layer can significantly reduce the chloride ion diffusion coefficient of concrete. 结果表明,致密的表面砂浆层能显著地降低混凝土本体的氯离子扩散系数。
- 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)电极中的扩散系数D_(Li)。 。
- In case of Newtonian flow, the effective diffusion coefficient obtained by this method is perfectly in agreement with the result by Aris. 在牛顿流体情况,本方法得到的等效扩散系数和Aris的结果完全相同。
- Because natural gas and water have different relaxation time and diffusion coefficient,we can use DSM and SSM to identify them. 由于天然气和水的弛豫时间和扩散系数的差异,可以利用差谱分析法(DSM)和移谱分析法(SSM)来识别天然气。
- According to Fick's law under the constant carbon potential and diffusion coefficient D that has nothing to do with the distribution of ... 根据菲克定律，在恒定攻势、扩散系数D与联浓度分布无关且为常数的条件下，给出了渗层政浓度分布的数学模型。
- Purpose: To retrospectiely assess the apparent diffusion coefficient (ADC) for prediction of malignancy and prognosis of malignant astrocytic tumors. 目的：回顾性分析表观弥散系数预测恶性星形细胞瘤的分级与预后方面的价值。
- Decreasing hydraulic conductivity and diffusion coefficient may delay the increasing rate of the concentration ratio at the base of a GCL. 结果表明，减小渗透系数和扩散系数可以有效减缓衬垫底部浓度比的增加速度。
