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Specifically, itcontains 8 chapters.In chapter 1, the formation, structures, properties and the futureprospect of liposome were thoroughly reviewed;In chapter 2, the stibility and permeability of phopholipid -eleostericacid liposome were studied together with the effect of polymerizationof eleostearic acid. This membrane system was very sensitive to 〓,the effect of 〓 was clarified to increase the aggregation/fusion ofliposomes and made the permeability of mixed liposomes much higher;In chapter 3, two polymerizable conjugated diyne bolaamphiphiles were synthesized. They could form very stable mixed liposome, andthe diyne could be polymerized by UV light in bilayer liposomes, as aresult, the stability of mixed liposome against solvent or surfactantafter polymerization were enhanced. In chapter 4, two kinds of amphiphilic amino acids were synthesized andstable liposomes were formed therefrom After the condensationpolymerization of amino acid in bilayer liposomes, stable polypeptide liposomes were obtained, which had lower phase transition temperatureand higher permeability.In chapter 5, four kinds of glycolipids were synthesized and theiraggregation behavior in water was comparied. When incorporated intophospholipid bilayer membranes, they could increase the phase transitiontemperatures and inhibit the aggregation and fusion of mixedliposomesat lower temperature.In chapter 6 and 7, three kinds of steroidal bolaamphiphiles withdifferent chain lengths were synthesized. Incorporation of steroidalmoiety to the center of lipid bilayer membrane obviously increased themobility of lipid membrane and shifted Tc to lower temperature side incomparasion with cholesterol. The bolaamphiphile which was shorter thanthe hosted lipid bilayer membrane thickness influenced the lipid packingmore obviously.
全文共分8章:第一章对脂质体的形成、结构、性质及展望进行了较为详细的文献综述;第二章研究了磷脂-桐酸脂质体的稳定性,通透能力及桐酸的聚合对这些性质的影响;磷脂-桐酸混合脂质体为一类对〓灵敏的脂质体,〓的作用首先是使脂质体集聚然后使脂质体融合,并加速内包荧光物的释放;第三章通过合成两种可聚合共轭双炔双极性双亲分子DDCA,DDOL,研究了共双炔分子在双分子层脂质体膜上的聚合及对脂质体性质的影响,聚合可以提高脂质体相对于溶剂及表面活性剂的稳定性;第四章合成了两类氨基酸为极性基团的双亲分子,它们均可以在超声下形成稳定的脂质体结构;氨基酸基团可以在脂质体上进行缩聚反应,若聚合后脂质体表面仍有足够的亲水能力,则可得到稳定的多肽型脂质体;聚合后脂质体的相变温度降低,通透能力增加;第五章合成了四种亲水基团为单糖基的双亲分子GL-l,GL-2,GL-3, GL-4,研究了它们在水中的分散情况、集合体形态与分子结构的关系;在DMPC双分子层膜中加入糖脂分子可以使脂质体的相变温度提高,阻止脂质体在低温放置时的集聚与融合;第六章-第七章合成了三种不同碳链长度的双极性含胆甾环双亲分子 CL-1,CL-2,CL-3;它们可以象胆固醇一样与磷脂混合形成稳定脂质体,胆甾环基团位于脂质体双分子层膜的中间;与胆固醇的作用相反,它们可以增加磷脂双分子层膜的流动性,降低混合脂质体的相变温度;三种分子的作用与其碳链长度和磷脂双分子层膜的厚度有关,比膜厚度短的分子影响最大。
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The mathematical model of deflagration to detonation transition for coke p owder and oxygen mixture in one-dimensional closed system was established on th e basis of chemical reaction and two-phase reaction fluid mechanics theory. Num erical simulation of the process was successfully made through coordinate transf ormation and two-step display differential schemes.
根据化学反应和两相反应流体动力学理论,建立了焦炭粉-氧气混合物燃烧波在一维封闭空间内的爆燃爆震转捩现象的数学模型,运用坐标变换和M acCormack两步显式差分格式,成功地完成了过程的数值模拟。
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The fourth chapter talks about the weft carrier, in this part, we mostly introduce the big gripper shuttle in the comparative way and not only analyze the structure but also analyze the stress of the fatigable parts. In the fifth chapter, the shuttle box is our research emphasis, we start with the design principle and analyze its structure and the logic of the action of the parts. The sixth chapter discusses the shoot mechanism, builds its theory model and analyzes its law of motion from the view of kinematics and kinetics during the wefting. And then, we can consider the hydraulically shoot mechanism and comprehend its principle and some special parts. Subsequently, the content is about the flying of a shuttle, because the course of the flying of a shuttle is very complex, it is necessary to study the shuttle according to mechanics and to analyze its course of motion and its change of speed from the view of energy.
第五章谈的是梭箱,这部分从梭箱的设计原理入手,从结构的角度对梭箱进行分析,考虑到梭箱上各执行件间的动作存在一定的逻辑关系,还对执行件动作时间与控制作出论述,从中可以看出重型宽幅织机所独有的特性;第六章论述投梭机构,先构造出投梭机_重型宽幅织机引纬机构与梭箱的设计_构的弹性理论模型,从动力学的角度剖析投梭规律,随后分析液压式投梭的工作原--理和一些特型元器件;第七章论述梭子的飞行运动,考虑到梭子飞行运动的复杂性,我们把梭子飞行运动划分为三个阶段,然后分阶段介绍其运动规律,在对梭子进行_运动分析的同时还详细分析它的受力情况,在这一章的最后,我们对影响梭子飞行_的因素也作出了讨论;顺沿这一过程,即是第八章对制梭机构的论述,在这一部分,、主要研究制梭过程与制梭力的情况,同梭子飞行过程一样,制梭过程也分为三个阶段,就每个阶段而言,我们都对其进行受力与运动方面分析,同时也就一些容易出现的问题作出讨论;最后两章是对纬纱交接机构和纬纱的退绕与张力控制作出讨_论,鉴于这两部分不存在复杂的动力学方面的问题,论述重点便放在结构与原理的分析上面,包括分解纬纱交接机构,解析其动作过程,介绍储纬与纬纱张力的一些情况。
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Faunistic composition analysis showed that geographic units in Anhui Province could be divided into two groups along a boundary from northern Dabie Mountain to Chaohu Lake. Indomalayan species accounted for 60% of the total species in all geographic unit groups, with an increase in the group's prevalence from north to south.
基于分布型物种数的地理单元聚类分析结果表明,安徽省鸟类地理分布区大致以大别山北缘-巢湖一线为界分为两大组,两组在区系成分上存在较大的区域分异;东洋型物种在整个安徽境内比例均占60%以上,同时呈现由北向南递增的格局。
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Both active components of plant herbs with an analogical isomeride structure were chosen as research targets. A combination of intrinsic fluorescence, UV-Vis, FTIR and the molecular modeling techniques has been used to characterize the binding between both flavones and human gammaglobulin.
将互为同分异构体的两种植物药活性组分山姜素和豆蔻明作为研究对象,应用荧光光谱法、紫外光谱法以及红外光谱法并结合分子对接技术首次对这两种黄酮类化合物与人-γ球蛋白(Human gammagobulin, HG)的相互作用进行了详细研究。
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Firstly,Shanghai and Shenzhen stock return time series do not follow normal distribution,it presents leptokurtic and fat-tails;secondly,it is characteristic of long memory,non-linear,persistence and Non-periodic Cycle,which are obviously fractal market Features;finally,we discuss the chaotic dynamic characteristics of tow market,witch can prove the fact of fractal market from the side.
首先,沪深股市的收益率时间序列波动不服从正态分布,而是存在尖峰、胖尾和右偏的特征;其次,序列具有状态持续性,统计自相似性,非周期循环长度,等分形特征;最后,对两市的混沌动力学特征进行了初步探讨,从侧面印证两市为分形市场。
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Strain 117 and 43401 are most closely related to the type strains of Nocardia pseudobrasiliensis and Nocardia nova, sharing 16S rDNA sequence similarities of 98.2% and 98.7%, respectively.
在以16S rDNA序列为基础的系统发育树上,菌株117和43401在诺卡氏菌属的辐射分枝范围内形成单独的两个两枝。
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Then calculates clearances in radius direction for all kinds of nonparallel degree between input shaft and output shaft, and presents conditions of adjustability. Applies the experimental device, which is developed for this paper research, as example, introduce calculation formulation of overlapping coefficient and pressure angle while the distance between two centers is uncertain, in this way, we get the range of the center distance.
以本论文的实验研究装置为例,引入了中心距不确定状况下的重迭系数、压力角等计算公式,以两齿轮啮合时的分度圆不能相割为最小中心距,以两齿轮啮合的重迭系数不小于1为最大中心距,从而得到相应的中心距范围。
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Researching on the decision-maker's behavior hypothesis and classification principle in incomplete informational risk assessment, this paper built the rational decision-making route as①releasing the sequential or partible hypothesis of individual preference and alternatives independence condition in order to satisfy the actual decision-making;②keeping the optimal result of group decision-making according as the thought of"Binary comparison"of sequence path independence condition SPI building the hierarchy structure in opening frame of discernment to increase granularity of discernment.
研究不完全信息操作风险评价的决策者行为假设和分类方法,构建理性决策路径和决策机制:①放松Arrow选择理论的决策者个人偏好连续或可分假设、无关方案独立性条件,以满足决策过程的实际情况。②构建开放的决策识别框架,依据序贯路径无关条件的&两两比较&思想,保证群体决策结果的最优性;在开放的识别框架中建立层次结构,增加识别粒度。将主观信息表达转化为专家对某一属性判断的基本可信度分配,运用证据理论处理不完全信息的融合问题。③基于包含度的分层约简方法降低决策复杂度。
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The nucleus is surrounded by two membranes which are separated by a perinuclear space.
核被两层膜所包被着,这两层膜又被核周腔分隔开。
- 推荐网络例句
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We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.
索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称;三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起,称之为挽歌体诗人或者史诗诗人,他们被称为诗人,似乎只是因为遵守格律写作,而非他们作品的模仿本质。
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The relationship between communicative competence and grammar teaching should be that of the ends and the means.
交际能力和语法的关系应该是目标与途径的关系。
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This is not paper type of business,it's people business,with such huge money involved.
这不是纸上谈兵式的交易,这是人与人的业务,而且涉及金额巨大。