单作用

Then the structure decomposed into a series of equivalent single degree of freedom system, the random wind-induced response and the equivalent static wind action based on Davenport spectrum of the structure with TLD are obtained. An example confirms this method.

此外，由于建立了将结构分解为一系列等效单自由度体系的一般方法，利用等效单自由度体系与抗震反应谱的关系，本文方法还可用于非经典阻尼非对称被动控制结构基于抗震反应谱的地震作用取值。

Increasing the selective reduction ability of NOx under lean burning condition, enhancing the thermal stability and decreasing the light-off temperature of the catalysts are the three key researching hot points in the area. And quality of the honey comb g-Al2O3 coatings, additives and the preparation parameters are the major effectors of the catalytic activation of the catalysts.

目前对单钯三效催化剂的研究的热点和难点在于：1 提高催化剂对氮氧化物的选择还原能力； 2 增强催化剂的高温热稳定性；3 降低催化剂的起燃温度。g-Al2O3 性能质量，助催化剂的选择及用量，涂层及催化剂的制备工艺等对单钯三效催化剂的催化活性起决定性作用。

Increasing the selective reduction ability of NOx under lean burning condition, enhancing the thermal stability and decreasing the light-off temperature of the catalysts are the three keyresearching hot points in the area. And quality of the honey comb g-Al2O3 coatings, additives and the preparation parameters are the major effectors of the catalytic activation of the catalysts.

目前对单钯三效催化剂的研究的热点和难点在于：1 提高催化剂对氮氧化物的选择还原能力； 2 增强催化剂的高温热稳定性；3 降低催化剂的起燃湿度。g-Al2O3 性能质量、助催化剂的选择及用量、涂层及催化剂的制备工艺等对单钯三效催化剂的催化活性起决定性作用。

Based on the the formal characteristics of "Lihe word"(another special disyllabic VO type structure in Mandarin),we found another important effect of nuclear stress,that is NS has the effect on syntactic structure to separate or conglutinate the combination of words within the NS domain, resulting the NS domain a expanding trend inside.

以该统计结果为基础，发现决定嵌偶词分布的条件是嵌偶词能否与邻近单音成分进行嵌偶，而制约嵌偶的规则有二：一是嵌偶的两个单音成分在句法结构上越近则越容易嵌偶；二是有"核心重音黏合力量"作用的两个成分容易嵌偶。

Libermann.The early researcheson this kind of manifolds were closely related to Physics and Mechanics.But since1991,S.Kaneyuki published his result on the algebraic condition for the existence ofinvariant〓structures on a coset space,Lie theory has played the most impor-tant role in the study of this kind of manifolds.In particular,dipolarizations in a Liealgebra are closely related to the homogeneous〓manifolds.Dipolarizationsin semisimple Lie algebras and the homogeneous〓manifolds associated withthese dipolarizations have been studied by S.Kaneyuki,Z.X.Hou and S.Q.Deng.Inthe partⅡ of this thesis we study the dipolarizations in some quadratic Lie algebrasand the homogeneous parakahler manifolds associated with these dipolarizations.

Libermann给出的，早期的有关类流形的研究与物理和力学密切相关，自从1991年金行壮二发表了陪集空间上存在不变仿凯勒结构的代数化结果后，李群及李代数理论在这类流形的研究中起着主要作用，特别地，李代数的双极化与这类流形密切相关，半单李代数的双极化的相关几何，金行壮二，候自新和邓少强等人已作了研究，二次李代数是比半单李代数更广且带有非退化不变双线性型的李代数，本文主要研究了二次代数的双极化及相关几何。

Methods: Tail suspension model and force-swim model of mice were used to observe the effect of Akebia fruit alcohol extract on relieving depression. The mechanism was examined by inhibiting reuptake of monoamine neurotransmitters.

采用小鼠悬尾实验、强迫游泳实验，抑制单胺重摄取作用实验等动物模型来考察预知子乙醇提取物抗抑郁作用及其作用机制。

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。

When applying monose that was easily utilized by HPB as substrate, the competition for common feed among different populations restrain their exertion of co-metabolism. While applying complex organic compounds including greese, ester and protein as substrate, the co-metabolism among different populations could be exerted and therefore the hydrogen-producing ability of HPB was enhanced via their cooperation.

以单糖为底物时，由于菌种间的竞争作用，抑制了高效HPFB的产氢能力，混合菌种协同作用不能有效地发挥；以复杂的有机物为底物时，菌种间的共代谢协同作用是可能积极地发挥，进而提高高效HPB的产氢能力。

Axial load, in-plane bending load and out-plane bending load are considered inthe loading-carrying capacity of T-shaped unstiffened and inner-stiffened RHS-CHSjoints in this paper.

在T形非加劲与加劲RHS-CHS节点研究中，分别考虑了支管轴向力作用、平面内弯矩作用、平面外弯矩作用三种单荷载作用情况。

To study the effect of different types of web cleaner on the card sliver quality,we have done the comparison test between the guide plate web cleaner and the anti-teeth guided flat web cleaner under the condition of the same amount of air volume.

用USTER AFIS单纤维测试系统对上述条件所加工的生条进行了检测，结果显示：反齿导向盖板式棉网清洁器所生产的生条质量总体上要好于导板式棉网清洁器，其原因是反齿导向盖板排除短绒、杂质、棉结等的作用是一种&主动&作用，而导板式棉网清洁器对短绒、杂质、棉结等的排除是一种&被动&作用，梳棉机后罩板处棉网清洁器以采用反齿导向盖板式棉网清洁器为宜。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。