Today , the criterions for anti - seismic design are very simple . in order to solve the problems in anti - seismic design , the research is carried out the work that has been done include the following aspects : ( 1 ) based on the deep analysis of the basic discipline of friction - reinforced theory and pseudo - cohesion concept , failure modals that can be existed in the reinforced earth retaining wall and their prevention measure and calculational methods are analysed and summarized 本文主要针对加筋土挡墙抗震设计中存在的问题展开研究,主要研究内容和取得的成果如下: ( 1 )利用摩擦加筋原理和准粘聚力理论对加筋土的基本原理进行了深入分析,对加筋土挡墙可能存在的各种破坏模式及其防治措施、计算方法等作了深入分析和总结。
Ins / gps / sar integrated navigation system have promoted widespread interest in the field of navigation . in this paper , the overall frame and the key techniques of ins / gps / sar integrated navigation system are studied through a large amount of simulations , the design of the simulations in this paper strive to close with the practice , so many modals and the parameters in these modals are chosen from practice Ins gps sar组合导航系统是当前导航领域的热点之一,本文主要研究了ins gps sar组合导航系统的总体方案及相关关键技术,并进行了大量的仿真研究,在每个关键技术方案的设计和仿真中都力求贴近实际,许多物理模型及参数的选取都从实际的研究工作得到。
In current network applications , c / s modal is the mainstream . but with the quick development of the distribute computing and new network technology , more and more people focus their attention on p2p modal in recent days . the main difference between p2p modal and c / s modal is that the former does n ' t rely on a server , thus control is distribute . some modals of p2p even do n ' t require a server . the p2p modal has excellent redundancy . no single fault point in p2p modal . p2p modal can be a good complementarity of c / s modal . and of course , as a new technology , p2p modal is not maturate . it even has n ' t a standard protocol till now 而随着分布式计算的深化和网络技术的进一步发展,对等式网络模型( p2p )开始受到重视,并成为最近的技术热点之一。 p2p模型与c s模型相比,最大的不同是降低了对服务器的依赖及其分散控制,一些p2p模型甚至不需要服务器。 p2p系统的冗余性很好,没有单一的失败点。
As the application of distributed real - time systems is becoming more and more popular , the scheduling mechanism faces new requirements and challenges because of the coexistence of different kinds of time - constraint tasks . to date , available real - time middleware scheduling modals aim at some aspect of scheduling and do not apply to this problem 随着分布式实时系统应用的日益广泛,不同时间约束实时任务并存的情况给系统的调度机制带来了新的需求和挑战;而目前主要的实时中间件的调度模型针对性较强,不适用于这种情况。
The preceding five steps modal frequencies and the corresponding vibration modals of the main frame are calculated . by means of the comparison basic frequency with the other vilration sources and the analysis of each other step vibration modes , the structure is proved to be safe this dissertation studied the important mechanism of the roadheader 求出其5阶固有频率和振型,将固有频率与振源频率比较,并对各阶振型进行动态观察与分析,得出了其在正常工作时不会发生共振的结论。