查询词典 permeability

A special technique for quantifying the anionic sites of vascular endothelial cells is introduced so as to study the relationship between the ca pillary vessel anionic sites and vascular permeability.

介绍一种定量观察血管内皮细胞表面阴离子场的技术方法，以研究毛细血管腔面阴离子场与血管通透性的关系。

The results show that with Cd2 + Stress Pistia stratiote large increase of the concentration of leaf tissue of the chlorophyll content decreased, while the MDA, soluble protein content, proline content, lipid membrane permeability, SOD, POD, CAT, nitrate reduction The first enzyme content was increased at different times and reached a peak after the downward trend.

结果显示，随着镉胁迫浓度的增加大薸叶组织内的叶绿素含量呈下降的趋势，而丙二醛、可溶性蛋白含量、脯氨酸含量、脂膜相对透性、超氧化物歧化酶、过氧化物酶、过氧化氢酶、硝酸还原酶的含量呈先升高并在不同的浓度达到高峰后再下降的趋势。

A pot experiment was conducted to investigate the effect of soil water on protective enzymes of superoxide dismutase, catalase and peroxidase, and also on membrane lipid peroxidation including malonaldehyde and plasma membrane permeability in pea (Pisum sativum Linn.) leaf during flowering and pod-bearing stages under drought stress and water recovery conditions. Antioxidant ability of pea during flowering and pod-bearing stages was also analyzed.

为探讨不同水分条件对豌豆保护酶系统和膜脂过氧化的影响，采用盆栽人工控水试验方法，模拟干旱胁迫及复水条件，研究了不同水分处理对花荚期豌豆叶片超氧化物歧化酶、过氧化氢酶、过氧化物酶活性以及过氧化产物丙二醛含量和脂膜相对透性的影响，并对花荚期豌豆抗氧化能力进行了综合评价。

Treating with different concentration of PEG 6000 in 1/2 Hoagland nutrient solution for 3 days, the physiological indexes , such as, Pn, chlorophyll fluorescence parameters, cell membrane permeability, MDA and relative water contents of Plantago asiatica L. and Viola philippcia Cay, were studied. The Pn of P. asiatica and V.

在不同浓度的PEG6000的1/2Hoagland营养液水分胁迫条件下，对处理3d的车前和紫花地丁的净光合速率、叶绿素荧光参数、细胞电解质外渗率、相对含水量和丙二醛含量等指标进行了测定和分析。

Objective To investigate the influence of CO2 pneumoperitoneum on intestinal mucosa permeability in rats with liver cirrhosis.

目的 探讨CO2气腹对肝硬变大鼠肠道黏膜通透性的影响。

These tests show that: 1. suction decreases with the increase of the water saturation in the chalk; 2. stress variants proposed are available for describing the stress state of the unsaturated chalk; 3. preconsolidation pressure increases with suction, while the effects of suction on the compressibility coefficients λ and κ are not evident; 4. as usual unsaturated soils, the permeability to oil of chalk increases with the suction; 5. yield strength of the chalk behaves with volumetric strain hardening; 6. cohesive behaviour of the chalk is related to the stress level, and relation between time-dependent deformation and logt is linear; 7. cohesion of the chalk decreases with the increase of the suction, while the elastic stiffness and the cohesion coefficient increase; 8. strength and elastic modulus increase with the strain rate, while the strain at the peak strength decreases with the increase of the strain rate.

试验结果表明，白垩中的虹吸力随水饱和度的降低而提高；吸力、水饱和度和强度的变化过程均与时间有关；可用由理论分析得到的应力状态变量描述非饱和白垩的平衡状态；前期固结压力随吸力增加而提高，而压缩指数λ与κ则同吸力无关；应力大于前期固结压力时，粘性变形与时间的对数关系曲线呈线性关系，其大小和增长速率均随吸力减小而增大，可视为白垩弹性刚度降低和粘性系数增大的结果；前期固结压力和变形模量随着应变速率的提高而提高，压缩指数κ和λ则随应变速率的提高而减小；应变速率较低时，粘性和吸力对前期固结压力及压缩指数的影响较小；白垩中油的渗透性随着吸力增加而提高；白垩在屈服阶段具有明显的体积应变硬化特性。

During the preformulation study, a great deal of transdermal enhancers in different styles was chosen to study the transdermal permeability of OXA in vitro.

在处方前研究中，选用大量不同类型的化学促渗剂进行药物体外渗透性研究。

Basing on the result of preformulation, the transdermal transit cumulate dose chosen as index, the effect of transdermal permeability of OXA by HPMC and sodium hyaluronate was investigated.

实验结果显示，棕榈酸异丙酯对四种药物的体外经皮渗透性均具有促进作用，尤其是对亲脂性药物促渗作用尤为显著。

In the preformulation study, the ultraviolet spectrum and HPLC methods for the assay of α-asarone were established firstly and then the physicochemical properties, especially the octanol/water partition coefficient and the solubility in various solvent systems such as alcohol, PEG 400, IPM, octanol were examined. The prediction permeability was then compared with actual transdermal parameters obtained from the in-vitro diffusion study , and feasibility of drug transdermal absorption was then analyzed.

在制剂开发的处方前研究工作中，首先建立了α-细辛醚的紫外及HPLC分析方法，测定了药物的油水分配系数及在生理盐水、各系列浓度的乙醇、PEG400、肉豆蔻酸异丙酯、正辛醇等溶媒中溶解度；其次，确立了药物体外经皮渗透研究的方法，并考察溶媒及促渗剂(乙醇、丙二醇、肉豆蔻酸异丙酯等)对药物体外经皮渗透性能的影响，计算药物经皮渗透的各参数，根据药物的药物动力学参数，分析了药物经皮吸收的可行性。

These findings demonstrate t hat the modulation of stress and of permeability may be two important factors in fluencing stress dissipation and shock absorption behavior of the disc during co m pressive and impact loads.

提示对压缩刚度和渗透性的调节可能是关节盘组织内部承受并缓冲应力的两种方式。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。