Also , the reciprocity of creep between dam base and body , and stress - seepage field couple between dam and its base are something intricateo anciently , study on dam body is rather abundant , but quite few on dam base . aiming these hot and difficult spots in dam building , combining one of the great projects sponsored by national natural science fund ( no . 50139030 ) , and real projects analysis of xin ' anjiang dam and longyangxia dam , this dissertation studied these complex problems mentioned hereinbefore 大坝是一个包括坝体和坝基的复杂系统,不仅坝基与坝体结构与荷载之间有复杂的相互作用,由于自身材料的特点,坝基蠕变与坝体徐变之间也有复杂的相互影响;而坝基应力场与渗流场、坝体应力场与渗流场的相互作用也是一个十分难解决的问题。
Taking wcdma rnc system into consideration , this project analyses rohc and conclude the flow chart and basic modules of compression and decompression . this project goes through software requirement specification , high level design , low level design , coding and testing . though testing , it implements header compression of rtp / udp / ip packet and achieves high robustness 本课题结合wcdmarnc系统,在对rohc进行了全面分析的基础上,对rohc的模块进行了详细划分,归纳了各种压缩与解压缩流程,经过了软件需求分析、总体设计、详细设计、软件编码、软件测试等各个阶段,完整的实现了rtp / udp / ip数据包的头部压缩功能,并经测试证明,达到了较好的健壮性。
Chapter 5 makes a converse - project analysis of a lcos chip which from a hmd product , for the reason that we can not get the chips ’ pin definition , the sequential and the electric properties documents . after measurement by oscillograph , then combined with the works above , we got the pin definition and the basic sequential properties 通过示波器的测定及读数统计,再结合上一章的算法、时序计算结果和第二章对lcos技术的理解,得出了该芯片20个引脚的功能对应关系和基本时序特性。
Firstly , most theoretical researches and practical explorations deal with the farmland consolidation practices in northern plains and correspondingly farmland consolidation project planning and design in southern hilly region is less involved . secondly , farmland consolidation , however , has just begun in china and it mainly aims to increase agrarian areas in a majority of regions , not yet to attain the sustainable utilization of land resources based on the project analyses . behind the current " positive increase " in economic benefits , the truth is the " negative increase " in ecological , social and economic benefits in the long run 然而现阶段我国在农地整理的研究上还存在一些不足之处:一是这方面的理论研究与实践探索目前还主要集中在北方平原地区,对南方丘陵地区的农地整理规划设计探讨得比较少;二是在当前我国农地整理项目规划设计的实践中还普遍存在一些问题,大多数地区农地整理目标仍主要是扩大耕地数量,补偿因非农建设占用的耕地,尚未进入以项目分析为基础,以土地资源的可持续利用为目标的阶段,一些反映近期经济效益的喜人的“正数增长”后面,往往掩盖着长远的生态效益、社会效益和经济效益等方面的“负数增长” 。
Based on the information construction master plan of tobacco trade , related architecture of information security standard and laws and regularity in point in china , this thesis presents an omni faceted project of the national bureau lan ' s security architecture , security management policy , security protect and security execution . the project analyses current conditions and security requirement of the national bureau ' s network , and it confirms to requirement of practical applications and future demand 本论文根据烟草行业信息化建设总体规划,参照有关信息安全标准体系和我国相关法律和法规,在分析国家局网络现状和安全需求的基础上,结合实际应用和未来发展,提出了国家局网络系统的全方位安全体系设计方案,以及安全管理策略、安全工作的保障和实施等。