In order to make abstract concepts in " signal and system " and the " digital signal processing " such as spectrum , the spectrum mixed structure , filter , plus windows etc visualize in the intuitionistic and audible form to enable students to understand and master , so author determined to study voice signals 以上两句都不太行,在摘要中要注意两件事:首先是一般不会涉及到写论文的人,不用我、我们这样的词;其次,一般不用主动语态。
According to the characteristics of the object developed , this paper brings forward the mixed structure of the multi - layer distributed client / server structure and the multi - layer distributed browser / server structure . in addition , the paper brings forward the developing method of middleware technique , which integrates delphi ' s midas and microsoft com + technology for the aspects of the running efficiency and the security of the software 根据开发对象特点,本文提出了多层分布式client server和分布式web结合的混合结构,并以提高软件的运行效率和安全性为着眼点,提出了一种结合delphimidas技术和com +技术的中间件开发方法。
Circuit design is the basis of design of demultiplexer . speed , power and chip area are the main factors that should be considered in circuit design . every circuit structure has its merits and drawbacks , e . g . cmos logic family has a slower speed , but lower power , smaller area , scfl ( source couple fet logic ) family has a higher speed , but higher power , larger area . we should choose a proper circuit structure or their mixed structure for certain design to get a good tradeoff among the three factors . flip - flop is the fundamental element of demultiplexer , setup time and hold up time are key factors , which influence the speed of circuit , thus the design aim is how to reduce them . in this thesis we place emphasis on the design of scfl latches 速度、功耗、面积是电路设计要考虑的主要因素,不同的电路形式具有不同的优缺点,如cmos互补逻辑电路功耗低,面积小,速度相对较慢; scfl (源极耦合fet逻辑)电路速度高,功耗和面积较大。所以要针对具体设计需要选用适当的电路形式或其组合结构,以满足设计要求。触发器是分接器的基本组成单元,建立时间和保持时间是影响电路速度的关键,所以减小建立时间和保持时间是触发器设计的主要目标,本文着重介绍了scfl锁存器的设计和优化方法。
According to the actual working situation , this system adopts mixed structure of the multi - layer distributed client / server structure and the multi - layer distributed browser / server structure . this structure lightens the burden of web server and avoids stack analyses of the response to the client 根据电厂的实际工作情况,本系统采用多层分布式client server和分布式web相结合的混合网络结构,避免了采用单一网络结构带来的大量的客户端程序安装或浏览器端的大量客户响应分析。
The corporation mainly specializes in the manufacture of different kinds of high - speed ships of high - performance and in the research , design , manufacture , as well as after - sale service of steel ships , aluminum ships and steel - aluminum mixed structure ships with under 5000t 通过资本运作,公司重组了具有70年造船历史的湖北船厂;在产品经营上,销售收入、利润成倍增长,一跃成为国内高速船舶市场最具竞争力的品牌,拥有国产高速船舶市场70 %的份额;在国际市场开拓也卓有成效,目前已实现产品40 %外销,其性能、质量在国际市场上颇受好评。