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- Determination of gas diffusion coefficient of rock in the condition of water-saturated 饱和水条件下天然气在岩石中扩散系数的测定
- Study on the measurement of coal particale gas diffusion and diffusion coefficient 煤粒瓦斯扩散及扩散系数测定方法的研究
- Keywords gas diffusion model;third kind boundary condition;Biot's criterion of mass transmission;diffusion coefficient;Fourier's criterion of mass transmission; 瓦斯扩散模型;第三类边界条件;传质毕欧准数;传质傅立叶准数;
- Keywords gas diffusion through coal particles;the third Kind boundny condition;mass transfer biot criterion;diffusion coefficient;surface mass transfer coefficient; 煤粒瓦斯扩散;第三类边界条件;传质毕欧准数;扩散系数;表面传质系数;
- 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。
- 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。
- A dynamic model of gas diffusion without wind is established according to the Grads Theory. 在限定容器中气体介质是中性气体的情况下,由于中性气体在扩散过程中各向同性,扩散方程获得了简化。
- 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。
- The PTFE is effective as a binder and imparts hydrophobicity to the gas diffusion regime of the electrode. 聚四氟乙烯是有效的粘合剂和柔软剂疏水的气体扩散制度的电极。
- 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。
- There it is transformed into uranium hexafluoride, which in turn is sent to gas diffusion plant to be enriched. 在那里它被转化为铀的六氟化物,再被送进气体扩散工厂作富集处理。
- 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。
- It was found that the shape of absorption signal was controlled by the property of the analyte, the sample vaporization rate and the gas diffusion rate. 结果表明,吸收信号形状由被测元素的性质、样品气化速率和原子蒸气扩散速率决定。
- 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。
- Acid red B (ARB) solution was electrolyzed in a single-chamber cell and a two-chamber cell using Pt/C gas diffusion electrode (GDE) as cathode. 采用Pt/C气体扩散电极(GDE)为阴极;对酸性红B溶液进行单室电解和双室电解.
- 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。
- The gas diffusion layer of air electrode was prepared by the rolling method with acetylene black and 60% PTFE emulsion as raw materials. 以乙炔黑、60%25PTFE乳液为原料,用辊压法制备空气电极的气体扩散层。
- 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。