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diffusion of
相关语句
  扩散
    Diffusion of Aromatics in HZSM 5 Zeolite
    芳烃在HZSM-5沸石中的扩散
短句来源
    By using molecular dynamics (MD) simulation,the diffusion of 12 amino acids,such as glycine and alanine was simulated at 298.15K with constant NVT ensemble trajectory,and the diffusion coefficients were calculated with differentiation-interval variation.
    采用分子动力学模拟的方法模拟了298.15K正则系综下甘氨酸、丙氨酸等12种氨基酸在水中的扩散过程,扩散系数的计算采用微分-区限变分法。
短句来源
    Furthermore,the diffusion of oxygen in water was simulated with the same method,and satisfactory results in good agreement with the experimental value were obtained.
    还用同样的方法模拟了氧气在水中的扩散过程,模拟结果与实验结果吻合也较好。
短句来源
    Diffusion of Oligomeric Penetrants in Rubbery Polymer Matrixes A Study of Simulation of Molecular Dynamics
    寡聚物在高分子母体中的扩散──分子动力学模拟研究
短句来源
    MONTE CARLO SIMULATION OF DIFFUSION OF SOLUTE IN POLYMER GEL
    凝胶网络中溶质分子扩散特性的Monte Carlo模拟
短句来源
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  中扩散
    Study of Diffusion of Small Molecules in the Silicone Polymers Using Molecular Simulation
    分子模拟研究小分子在聚硅氧烷中扩散行为
短句来源
    DEVELOPMENT OF DIFFUSION OF GAS IN POLYMERS
    气体在聚合物中扩散的研究进展
短句来源
    As well known, the body fluid and blood are typical non-Newtonian fluid, so it is very important to investigate the diffusion of the nutritious molecules in non-Newtonian fluid for controlling the diffused process and helping the clinical treatment.
    生物体液、血液均为非牛顿流体,研究营养类分子在非牛顿流体中扩散,对控制扩散过程、指导临床治疗具有实际意义。
短句来源
    The diffusion of CO2 in PS has been measured. Furthermore, by using the residuary section area method, we have achieved the relationship of the CO2 diffusion thickness to CQ> diffusion time in PS.
    结合CO_2的扩散及释压发泡,获得了CO_2在PS中扩散过程的数据,采用剩余界面法得出了CO_2在PS中的扩散厚度与扩散时间的关系。
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  “diffusion of”译为未确定词的双语例句
    Study on Surface Adsorption and Interface Diffusion of Multilayer Gas-Sensing Films
    多层气敏薄膜表面吸附及界面扩散的研究
短句来源
    DIFFUSION OF O_2,N_2,CH_4 ON CARBON MOLECULAR SIEVE
    O_2,N_2,CH_4在碳分子筛上的扩散系数计算
短句来源
    Experimental Methodology for Study Diffusion of Leaked Hazardous Gas
    危险气体泄漏扩散的实验方法研究
短句来源
    The addition of Mo in Ni-B/TiO_2-Al_2O_3 can increase the average pore width and pore volume, which can result in the diffusion of furfural alcohol from the surface of the catalyst easier.
    对于糠醛加氢制糠醇反应来讲,不同载体的催化剂所表现的催化活性及对糠醇的选择性的大小顺序如下:浸渍法制备复合载体的Ni-B/TiO_2-Al_2O_3>溶胶凝胶法制备复合载体的Ni-B/TiO_2-Al_2O_3>Ni-B/γ-Al_2O_3。
短句来源
    By measuring diffusion behavior of PEG with various molecular mass in SA/CS-CaCl 2/PMCG microcapsules, it was shown that molecular mass cut-off of the microcapsules membrane was about 2000. Meanwhile, diffusion of small solutes including glucose, lactose, ethanol and L-glutamic acid in three kinds of SA/CS-CaCl 2/PMCG microcapsules were determined.
    通过测定不同相对分子质量的PEG传递透过SA/CS -CaCl2 /PMCG生物微胶囊的性能 ,确定了SA/CS -CaCl2 /PMCG膜的截留相对分子质量在 2 0 0 0左右。
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  diffusion of
One DR peak associated with the short-distance diffusion of oxygen vacancies was observed in both temperature and frequency spectra.
      
The method of NMR spin echo with the magnetic field pulse gradient was used for studying self-diffusion of water molecules in the radial root direction.
      
Diffusion of an Organic Cation into Root Cell Walls
      
Nonspecific pore-forming proteins (porins) are the major proteins of the outer membrane of Gram-negative bacteria responsible for diffusion of low-molecular-weight compounds.
      
Furthermore, these inhibitors not only reduce the local tissue damage but also retard the easy diffusion of systemic toxins and hence increase survival time.
      
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Styrene-divinylbenzene eopolymer beads of 40% crosslinking were first sulfonated with concentrated sulphuric acid and then pyrolyzed under nitrogen atmosphere in a cracking furnace. The properties pf the carbonaceous absorbent were correlated with its structures such as the surface area, the distribution of pore diameters, density, strength, etc. The surface area exceeds 800M2/g, and the porosity for the adsorption of ereatinine and uric acid is over 98%. The optimum pore diameters of the adsorbent for the adsorption...

Styrene-divinylbenzene eopolymer beads of 40% crosslinking were first sulfonated with concentrated sulphuric acid and then pyrolyzed under nitrogen atmosphere in a cracking furnace. The properties pf the carbonaceous absorbent were correlated with its structures such as the surface area, the distribution of pore diameters, density, strength, etc. The surface area exceeds 800M2/g, and the porosity for the adsorption of ereatinine and uric acid is over 98%. The optimum pore diameters of the adsorbent for the adsorption of uric acid are 6-40A. Larger diameters (160-170 A). Facilitate the diffusion of ereatinine and uric acid into the pores and be adsorbed therein.

苯乙烯-二乙烯苯共聚物小球经浓硫酸处理后进行高温裂解,得到球形碳化树脂。测定球形碳化树脂的诸物理性质及其对肌酸酐、尿酸的吸附性能,并研究物理性质与吸附性能间的关系。裂解产品比表面可达800M~2/g以上,对肌酸酐和尿酸的吸附率可达98%以上。

A number of thermosets of liquid chloroprene-hydroxyethyl methacrylate copolymer(CP-co-HEMA) modified epoxy resin were prepared. The mechanical properties of theresin were improved after modification. The shear strength of the modified system beganto drop when CP-co--HEMA content is more than 30%. The data of the experiments carriedout by monitoring with IR and Curelastometer indicatad that during the curing the etherification of primary hydroxyl groups of CP-co-HEMA with epoxy groups and the self-polymerization...

A number of thermosets of liquid chloroprene-hydroxyethyl methacrylate copolymer(CP-co-HEMA) modified epoxy resin were prepared. The mechanical properties of theresin were improved after modification. The shear strength of the modified system beganto drop when CP-co--HEMA content is more than 30%. The data of the experiments carriedout by monitoring with IR and Curelastometer indicatad that during the curing the etherification of primary hydroxyl groups of CP-co-HEMA with epoxy groups and the self-polymerization of epoxy groups occur simultaneously and the etherification appeared tobring about an improvement in the mechanical properties of the thermosets thus obtained.The effects of the curing conditions and CP-co-HEMA content on morphology were studied.It was found that high temperature is in favour of microphase separation and when thecuring temperature is low thermodynamic diffusion of the system is a dominant factor.

本工作制备了一系列以N,N-二甲基苄胺为固化剂的液体氯丁二烯-甲基丙烯酸羟乙酯共聚物改性环氧树脂固化物。研究了液体共聚物用量和固化条件对改性体系物理性能的影响。用红外光谱法和固化仪方法,测定了固化反应速度,讨论了固化反应机理。用扫描电镜的方法,观察了液体共聚物用量和固化条件对改性体系形态结构的影响。

The model for the diffusion of chlorine gas into a chlorinated polyethylene particle has been proposed by investigating the solvent properties of the particle. A simplified methe-matical model has been established to describe the interior diffusion process.The experimental data, based on the weight ratio of unreacted nucleus of polyethylene to the whole CPE particle varied with the reaction time, has shown good agreement with the model. The effect of chlorination temperature on the reaction has also...

The model for the diffusion of chlorine gas into a chlorinated polyethylene particle has been proposed by investigating the solvent properties of the particle. A simplified methe-matical model has been established to describe the interior diffusion process.The experimental data, based on the weight ratio of unreacted nucleus of polyethylene to the whole CPE particle varied with the reaction time, has shown good agreement with the model. The effect of chlorination temperature on the reaction has also been investigated according to the Arrihenius equation in the present study.

本文从对于在聚乙烯的气、固相氯化反应过程中,反应的控制步骤是氯气进入氯化聚乙烯粒子的内扩散的论证出发,导出了一种简化的数学模型,该模型描述了氯化过程中氯化聚乙烯的溶剩值随反应时间的变化;通过实验证明,在100℃到130℃温度区间内,该模型可以很好地与实测数据相吻合;最后,根据阿累尼乌斯公式,研究了温度对反应速率的影响,并求得了反应的活化能和指前因子。

 
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