The problem of information weak consistency must be considered by the load balancing algorithm whn it performs schedu1ing . in order to using the weak consistency information effectively , we propose a smallest k - subset random algoritlun ( skr and conduct a lot of simulation 为了有效利用系统中的弱一致性信息，使之成为负国防科学技术大学研究生院学位论文载平衡调度的决策依据，我们提出了一种基于信息弱一致性模型的最小k子集随机算法，并进行了性能模拟分析。
The simulation results show that the effect of mgo algorithm is great . comparing mgo algorithms with other related algorithms , such as bt , fef , fcef and la , there exist some extent of performance improvement in broadcast , scatter , gather and all - gather operation . further , the performance improvement ratio is increased as more computers ad Mgo算法与相关的bt 、 fef 、 fcef 、 la算法相比，在广播、分布、聚合、全聚合等全局通讯操作的性能上，均有不同程国防科学技术大学研究生院学位论文度的提高，并且性能提高百分比基本上随着集群中计算机结点数目的增加而加大。
Once the view is created by outjoin , those existing algorithms may fail in view maintenance . this paper introduce a new view maintenance algorithm , which can handle view involving outjoin , regular join and data inconsistency . moreover , our maintenance mechanism minimizes the number of the queries that need to be sent to the local database systems for view maintenance , which is an efficient way to make the multidatabase system more efficient 针对传统的视图维护算法在有外连接或数据不一致的情况下会出现错误的问题，本文提出了一种新的视图维护算法： vmdt算法，该算法不仅解决了外连接及数据不一致问题，而且最大限度地减少了国防科学技术大学研究生院学位论文mdbs与ldb之间的通信量，解决了嵌套异常问题。
Anqing diamond is a well imported japanse german advanced technology and equipment manufactures . the company is frequently cooperated with experts from japanese germany . at the same time , more and more researchers and qualified technicians are employed . what ? s more , anqing diamond is a project supported by researchers and experts from china polytechnic university , tsing - hua university hefei industry university etc . , who research and produce high quality piston rings and develops multiple most sophisticated technologies 公司全面引进德国日本等国际上活塞环制造的先进技术和现代化设备，与德国日本专家建立经常性的技术交流和友好协作，聘请国内外活塞环制造业高水平的研究人才和专业技术人才，并与中国科学技术大学清华大学合肥工业大学等国内知名大学专家学者共同研制开发生产高品质内燃机活塞环。
The notification model is imported to deliver the fault events efficiently . facing the entities on different level , like object , process and mainframe , a fault detection model of tree structure is adopted to enhance the scalability . and finally a ring - check algorithm is proposed to resolve the single - failure problem 本文引入通告模型实现了失效事件的有效传播；针对对象、进程、主机等不同层次的实体采用树型结构的监控国防科学技术大学研究生院学位沦文机制增强了失效监控的可伸缩性;并提出一个环形检测算法以解决单点失效问题。
Such as the move rule of agent under the driving of benefit , competition and conflict between agents , the influence of pollution on agent ' s moving , the burthen of environment , the population dynamic of agent with propagate ability , the agent ' s trade behavior and rules under the multi - resource condition , the function and ability of market , the reason and laws of the price fluctuating 研究和解释了社会生活中的一些典型现象，例如：利益驱动下的agent移动规律， agent间的竞争和冲突，污染对agent移动的影响，环境的负荷能力，具有生殖能力情况下的agent国防科学技术大学研究生院学位论文人口动力学，在多资源条件下的ag地间的贸易行为和规律，市场的作用与能力，以及价格波动的原因和规律等。
The " centered command , distributed decision " in modern c4isr system can be realized through horizontal intra - group cooperation and vertical inter - group cooperation . 4 . . a new group awareness mechanism , dhga , and a new cooperation control mechanism , dhcc , are proposed for the dynamic hierarchical cooperation of cooperation model dreascom , and their performance are also evaluated 国防科学技术大学研究生院学位论文3 .建立了基于群簇结构的复杂的动态实时强协同协作模型dreascom ，通过协作群体内成员之间的横向自主协作和不同协作群体之间的纵向协作控制，实现了新一代作战指挥控制系统中的“集中控制、分布决策” ，提供了对新一代作战指挥控制系统中动态、实时、强协同的协作行为的支持。
Also , the thesis provides a kind of optimization mechanism and the layered algorithm to customize the demultiplexing method strategy for every class of distributed object . the algorithm is provided to directly locate method , which has good space and time efficiency . when we apply these to starbus , the efficiency of starbus can be improved 30 % according to benchmark presented by us 基于mlmd和corba计算模型提出了一个可灵活配置的多端口orb结构，支持层次管理域的部署，并讨论了流控机制的实现，基于reactor国防科学技术大学研究生院学位论文模板的扩展技术提出了一种事件类型“借用”策略的公平、自调度的流控机制算法。
It is found from the experiment that under the conditions of peak magnetic field of 0 . 57t , beam pulse fwhm ( full width of half maximum ) of 44ns , a microwave radiation pulse with fwhm 25ns and whole width of 35ns is produced , when the intensity of the guiding magnetic field rises , the peak microwave power changes little but the width of the pulse reduces . the a - k gap also has obvious influence on the microwave radiation , the stable and higher microwave output is obtained under suitable gap 实验中还发现，在峰值磁场0 . 57t和束流半高宽44ns情况下，得到了25ns半高宽和35ns底宽的微波脉冲信号，随着导引磁场增加，微波信号幅值基本不变，但国防科学技术大学研究生院学位论文是微波脉冲宽度会逐步减少;实验中还发现磁场线圈位置有一定的轴向调节范围，说明在磁场轴向分布的一定变化范围内，器件都可以正常工作，这对以后的永磁场系统导引的微波实验有利。
A multimedia proxy server model is proposed based on the layer - encoding model . the server model makes the server ' s cache be used effectively and can adapt the changing of network bandwidth . in the server model , the data quality of a program stored in the server ' s cache , is directly related to the requesting frequency and requested bandwidth of the program 本文提出了一套基于分层编码模型的多媒体代理服务器模型，该模型能自动适应国防科学技术大学研究生院学位论文工nternet中的带宽变化，充分利用代理服务器的cache空间，并使cache中缓存的多媒体数据质量与其点播频率和点播带宽成正比。
