分子膜

The author studied firstly, systemtically and roundly on the membrane molecular biology of Cysticercus cellulosae during development, and put forward the biomembrane system, chemical compose, the process of phosphorus metabolism and biomembrane characteristic, and their changes during development.

首次对猪囊尾蚴膜分子生物学进行了较系统全面的研究，提出了猪囊尾蚴的生物膜系统、生物膜化学组成、膜磷脂代谢的途径及其生物膜特性以及发育过程中的变化。

NaA zeolite membranes have been found a potential application in the separation of the small-sized gas molecules by molecular sieving and dehydration of liquid mixtures by pervaporation. However, there are some problems in the preparation in the NaA zeolite membranes such as the scarce support types, insufficient study on the synthesis rules and few literature concerning the NaA zeolite membranes preparation on the inner surface of the tubular support.

中文题名NaA型沸石分子筛膜的合成及渗透性能研究副题名外文题名 Preparation and permeation studies on NaA zeolite membrane 论文作者董强导师徐南平教授时钧院士学科专业化学工程研究领域\研究方向学位级别博士学位授予单位南京工业大学学位授予日期2001 论文页码总数108页关键词膜分离沸石分子筛膜微滤膜馆藏号BSLW /2003 /TQ028 /23 NaA型沸石分子筛膜在小分子气体分离和渗透汽化分离等领域预期有着良好的应用前景。

It caused aggregation of purple membrane fragments at very low concentration. This effect might be attributed to its positive charges because cationic surfactant DTAB acted the same. On the other hand, melittin seemed to have behavior similar to CHAPS which has a rigid cholane ring,both had little effect on the conformation of retinal chromporphores.In consideration of the two-dimensional crystalline structure of purple membrane,melittin may form a rigid conformation such as α-helix on the surface of the membrane.

通过与三种在结构和电荷上不同的表面活性剂与紫膜的作用相比较，可以年出蜂毒作为带正电荷的分子与同样带正电的表面活性剂DTAB在引起紫膜凝聚方面表现相同；但在对紫膜可见光区的吸收光谱和圆二色谱的影响上却与具有刚性结构的CHAPS相似，表明蜂毒可在紫膜表面以一种刚性较大的构象存在，不能进入膜蛋白流水区的深层。

Stationary,falling-film,the UIC and centrifugal molecular distillatory in common use,and also the application and the development trend inchemical products,medicine,light industry and food industry of molecular distillation were introduced.

本文分析了分子蒸馏技术的机理，介绍了目前常用的静止式、降膜式、刮膜式和离心式分子蒸馏器，以及分子蒸馏技术在化工、医药、轻工和食品行业的应用情况和发展趋势。

We find in the monolayer membranes hypericin have the right amount of cholesterol to stabilize monolayer, and at least three cholesterol molecules can support a hypericin molecule.

我们在分子单层膜中发现金丝桃素必须要有胆固醇才能稳定处於单层膜上，而且至少要三个胆固醇分子才能支撑一个金丝桃素分子。

Last results showed that desiccation and priming could make the membrane structure to be preserved and restored. Many kinds of substances protect the membrane structure, such as soluble sugars, proteins, amphiphilic molecules, calcium ion, polyamine and other radical cleared system of nonenzyme katalyst, etc. These protective substances cooperate together to stabilize the structure of membrane lipids and proteins, and to keep the integrality of membrane structure, so the membrane function can exert normally and seed vigor can be improved.

研究表明，超干和引发处理可使膜结构得到保持与修复，很多种类的物质参与了膜结构的保护，例如可溶性糖、蛋白质、两性分子、Ca2+、多胺及其他非酶促自由基清除系统等，保护物质协同作用，稳定膜脂及膜蛋白的结构，保持膜系统的完整性，使膜功能得以正常发挥，强化了种子活力。

Last results showed that desiccation and pruning could make the membrane structure to be preserved and restored. Many kinds of substances protect the membrane structure, such as soluble sugars, proteins, amphiphilic molecules, calcium ion, polyamine and other radical cleared system of nonenzyme katalyst, etc. These protective substances cooperate together to stabilize the structure of membrane lipids and proteins, and to keep the integrality of membrane structure, so the membrane function can exert normally and seed vigor can be improved.

研究表明，超干和引发处理可使膜结构得到保持与修復，很多种类的物质参与了膜结构的保护，例如可溶性糖、蛋白质、两性分子、Ca(上標 2+)、多胺及其他非酶促自由基清除系统等，保护物质协同作用，稳定膜脂及膜蛋白的结构，保持膜系统的完整性，使膜功能得以正常发挥，强化了种子活力。

Adding a small quantity of three functional group of polyvalent can improve the water resistance and decoration of copolymer emulsion after film forming. The structure form of interpenetrating networks has a greater destroy degree to the micro crystal of polyurethane film forming substance than the effect of the prepolymer capping graft copolymer.IV, This article studies on the heat stability of acrylate modified polyurethane dispersion, researches the changes of the structure of acrylate modified polyurethane dispersion afterheating, and analyses by the heat analysis, infrared ray and heat analysis, and mass spectrometery.

利用拉曼光谱和扫描电镜、红外光谱等测试技术，分析了丙烯酸酷及丙烯酸酷一有机硅等改性聚氨酷水分散体的成膜过程—利用预聚体封端技术合成的丙烯酸酷改性聚醚聚氨酷的成膜过程包括乳液颗粒的挤压成膜与分子硬段的微区结晶，有机硅氧烷的引入将同时出现硅氧烷的水解缩合；具有互穿网络结构的丙烯酸酷改性聚氨酷水分散体因丙烯酸酷的互穿而限制了聚氨酷硬段在成膜过程中的结晶，聚合物成膜以挤压成膜为主，有机硅的复合改性同样出现硅氧烷水解缩合现象。8。

Residence time detection is carried out for wiped film molecular distillation by the impulse response method.

文章采用脉冲示踪法测量了刮膜式分子蒸馏中物料的停留时间分布，研究了示踪剂浓度和电导率强度的关系及刮膜转速、进料速率和物料粘度对停留时间的影响，并与降膜式分子蒸馏停留时间作了比较。

Therefore, the EL spectra of (Znq_2)_4 is wider than that of Znq_2. 4._2 was synthesized. The analysis of molecular spatial structure and the characterization of material performance of_2 and Liq showed that two Liq molecules and two Naq molecules were connected by Na-O-Na bond bridges to form_2. Compared with Liq,_2 exhibits stronger rigidity in planar molecular structure, larger steric hindrance and intermolecular distance, and much smaller molecular polarity, thus resulting in much longer fluorescence lifetime, much higher fluorescence quantum efficiency, wider energy bandgap and better film formability. When used as light-emitting layer in OLED,_2 shows lower formation probability of excited dimmer and exciplex formation than Liq, thus emits bluer light with higher current efficiency than Liq. When_2 ultrathin film is used as electron injection layer in OLED, it exhibits higher current density, higher luminance, lower turn-on voltage and higher current efficiency than Liq ultrathin film for the existence of sodium ions in_2 ultrathin film. 5. The summarization the relationship between molecular spatial structure and material performance of Alq_3,(Znq_2) and Liq, lead the conclusion that the molecular spatial structure of Mq_n affects its material performance in such aspects as the rigidity of planar molecular structure, intermolecular interaction, molecule stacking mode and intermolecular distance.

制备了_2，通过对_2和Liq的分子空间结构与性能进行分析与讨论，发现_2是通过两个Na-O-Na键桥将两个Liq和两个Naq连接构成的，其分子平面结构的刚性程度强于Liq，空间位阻大于Liq，分子之间的距离大于Liq，分子极性远远小于Liq；_2的荧光寿命长于Liq，荧光量子效率高于Liq，成膜性优于Liq；_2的禁带宽度比Liq大，光致发光光谱中_2的最大发射峰较Liq发生蓝移；当_2在OLED中作为发光层时，激发二聚体与激基复合物的生成几率远远小于Liq，发的光比Liq更蓝，电流效率大于Liq；_2超薄膜中有Na离子的存在，与Liq超薄膜相比，当其在OLED中作为电子注入层时，具有更大的电流密度，更高的发光强度，更低的阈值电压和更高的电流效率 5、对上述Alq_3、Znq_2和Liq的分子空间结构与材料性能之间的关系进行了归纳总结，认为Mq_n的分子空间结构主要在分子平面结构的刚性程度，相邻分子之间的相互作用，分子堆叠的方式和分子之间的距离这四个方面影响其性能。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失