查询词典 aggregation function

In this thesis, researches have been made on the structure of membrane protein and the process of protein aggregation and disaggregation by employing the two advantages of atomic force microscopy : nanometer resolution in liquids and in situ observation following a biological dynamical process during a long period. This thesis consists of four parts.

本论文利用原子力显微镜能够在溶液中观察生物大分子的结构并可以达到纳米级分辨率和能够在近生理的环境中对生物样品的活性过程进行跟踪观察的两大优势分别对膜蛋白的结构和蛋白质积聚、解聚的过程进行了研究。

At the same time, in view of some deficiency of traditional modeling methods, a new approach to system modeling梞ultiresolution modeling and aggregation/disaggregation梙as been developed since 1980s,and is now being used in the simulation and optimizing decision-making for large scale complex systems.

复杂系统的仿真和优化控制是以建立对象合理而准确的数学模型为基础的，但复杂系统本身具有一定的复杂性，对其进行建模和仿真时，会存在大量不同模式的信息数据(定量的、半定量的、定性的)，它们从不同角度不同层次反映系统的行为，而且往往具有不同的粒度和分辨率，传统的建模方法不能满足复杂系统的要求。

In this system, we introduces cluster architecture to provide global and scalable streaming caching proxy service mechanism; We implement streaming media transfer protocol on caching proxy end; We implement layered caching mechanism (global disk caching and memory caching) using dynamic sharing running memory buffer algorithm to support more stable and real-time parallel streams; We implement client request aggregation by means of streaming session sharing to reduce disk I/O and serve more user; We propose single streaming image to support the unify of pre-fetching streaming and caching streaming, which guarantees the proxy streaming of transparency for client; We design and implement streaming pre-fetching mechanism based on packet feedback information to reduce the number of "rebuffering" on client end; We bring forward streaming caching admission control policy fit for streaming caching proxy server to guarantee the QoS of streaming service.

该系统引入集群架构以提供全局的、可扩展的缓存代理服务机制；实现了缓存代理端的流媒体传输协议；采用动态共享运行缓冲区算法实现了分层缓存机制(全局磁盘缓存和内存缓存)以支持更多稳定、实时的并发流；利用流会话共享机制实现了客户请求聚集，从而减少磁盘I/O同时能服务更多的客户；提出了单一流映像，以支持预取流和缓存流的统一，从而保证代理端服务流对客户的完全透明；设计并实现了基于包反馈信息的流数据预取机制，从而减少了客户端的"rebuffering"次数；提出了适合于缓存代理服务器的流缓存准入控制策略，保证了流服务的QoS。

We have studied Aβ1-42 aggregation at different concentrations from 100 to 600nM, the results show that the association rate constant is strongly dependent upon the Aβ concentration, but the dissociation rate constant influenced by buffer has no salient change.

在不同浓度的Aβ1-42凝集反应中，发现结合速率常数ka随反应溶液中蛋白的浓度减小而明显地降低，解离速率常数kd主要受缓冲液的影响，并无明显的改变。

The institutions of farmland cultivation in Saccams area is a conception of institutional configuration, that are the aggregation of the interactions of the Hollander, the aborigine and the emigration of Hahn people, as well as the arrangement of formal and informal institutions of agricultural development, including the institutions of feudal tenure, landdag, cabessa, definition the property right, apply for receiving farmland to cultivate, distribute the certificate of land dominium, tithe taxation, encouraging measures etc, which theV.O.

荷据时期台湾赤崁一带之垦佃制度为一制度结构的概念，系为当时期荷、原、汉三者间的互动以及各种与农业发展有关之正式与非正式制度安排的总和，包括荷兰东印度公司由上而下所强加施行之原住民封建领地制度、地方会议制度、汉人首领制度、财产权界定、徵税措施、对汉人移民及从事农作之激励措施等有助於农业发展环境建构之正式制度的安排，以及汉人移民土地拓垦方式、租佃习惯及意识型态等非正式制度的安排。

These growth units were absorbed and join the crystal lattice on the growth interface through collision and aggregation.The powders with better crystallinity and double cone or tetrahedron shape were obtained after amorphous ZnS was treated by solventthermal method.

采用溶剂热处理高浓度条件下制备的ZnS无定形粉末，得到晶态结构完整，形状为双锥状或四面体状的粉末。

Local velocity ; slip velocity ; circulating fluidized bed ; cocurrent downflow ; aggregation

局部速度；滑落速度；循环流化床；并流下行；聚并

With the increasing of length of hydrophobic chain, the cmc of CnE3SO3 decreases, the micelle aggregation number increases, the number and size of "electronegative cavity" also increase, the capability for calcium-tolerant has a relevant increasing.

随着疏水连的增长，他的CMC降低，胶束聚集数增大，负电空穴的数目和大小都有所增加，因此耐钙稳定性也有一个相应的增加。

The components and molecular aggregation in mixed Langmuir films and LB films are strongly affected by some non-covalent intermolecular interactions, such as electrostatic interaction, hydrogen bond, complexation, van der Waals force, etc.

在混合Langmuir膜和LB膜中，分子的组分和集合形态在很大程度上受到分子间作用力的影响，这种分子间作用力都是是非共价力，如静电相互作用、氢键、配位、范德华力等作用。

The molecular aggregation with various functions in the body is formed through hydrogen bond, electrostatic force, Van der waals force and hydrophobic force between biomacromolecules and small molecules, and between the biomacromolecules.

在生命体系中，核酸、蛋白质和糖类是生物体的三大基本要素，生物大分子间以及生物大分子与在生命过程中起重要作用的有机小分子通过氢键、电荷相互作用、范德华力以及疏水作用等分子间作用力组成各种功能特殊的分子集合体。

Chinese traditional virtue is humility and wariness,the compliment and praise to the others should be declination

中国人的传统美德是谦虚谨慎，对别人的恭维和夸奖应是推辞。如

We bought this house on the never-never.

我们以分期付款的方式买下这座房子。