共查询到20条相似文献,搜索用时 140 毫秒
1.
RESEARCHONMODELINGOFHUMANBODYINTHREE-DIMENSIONALCOMPUTERANIMATIONSongShunlin;ZhanYongzhao;XueAnrong;DingYuemeiRESEARCHONMODEL... 相似文献
2.
Ruibin Qu 《计算机辅助绘图.设计与制造(英文版)》1994,(2)
CURVEANDSURFACEINTERPOLATIONBYSUBDIVISIONALGORITHMSRuibinQuCURVEANDSURFACEINTERPOLATIONBYSUBDIVISIONALGORITHMS¥RuibinQuAbstra... 相似文献
3.
NEWINSIGHTSINTOPRINCIPLESFORDESIGNINGARCHITECTUREOFENVIRONMENTSYSTEMFORTOOLINTEGRATION─INTHECASEOFPRODUCTIONMACHINESDESIGNZha... 相似文献
4.
求解具有间断系数的SH波方程的分步差分方法何柏荣(南开大学)冯德益,聂永安(天津市地震局)THEFRACTIONALSTEPDIFFERENCEMETHODSFORSOLVINGTHESHWAVEEQUATIONWITHDISCONTINUOUSCO... 相似文献
5.
扁球壳的边界元分析的一种简便方法龙述尧,蒯行成,李家宝,陈军(湖南大学)ACONCISEMETHODOFBOUNDARYELEMENTANALYSISFORSHALLOWSPHERICALSHELLS¥LongShu-yao;KuaiXing-che... 相似文献
6.
殷福亮 《数值计算与计算机应用》1996,(3)
滑动奇DCT和DST的快速算法殷福亮(大连理工大学)FASTALGORITHMSFORAFAMILYOFRUNNINGODDDISCRETECOSINEANDSINETRANSFORMS¥Yinfuliang(DalianUniversityofTe... 相似文献
7.
A COUNTER-EXAMPLE TO A FAST ALGORITHM FOR FINDING THE CONVEX HULL OF A SIMPLE POLYGON 总被引:1,自引:0,他引:1
ACOUNTER-EXAMPLETOAFASTALGORITHMFORFINDINGTHECONVEXHULLOFASIMPLEPOLYGONGodfriedToussaintACOUNTER-EXAMPLETOAFASTALGORITHMFORFI... 相似文献
8.
粘性项参与构造的隐式矢通量分裂格式及其数值模拟刘仪,曹琦,刘斌(西安交通大学涡轮教研室)IMPLICITFLUXVECTORSPLITTINGSCHEMESWITHVISCOUSANDNUMERICALSIMULATION¥LiuYi;CaoQi;L... 相似文献
9.
AFASTHIDDEN-LINEREMOVALALGORITHMFOR3-DIMENSIONALBUILDINGSQinKaihuai;TongGeliang;ZhangNan;ChenDailin;LiYungui;ShenWenduAFASTHI... 相似文献
10.
迟学斌 《数值计算与计算机应用》1995,(4)
应用嵌套排序的并行CHOLESKY分解算法迟学斌(中国科学院计算中心)PARALLELCHOLESKYDECOMPOSITIONUSINGNESTEDDISSECTIONTECHNOLOGY¥ChiXuebin(ComputingCenter,Aca... 相似文献
11.
一种基于故障的ATM over SDH网的生存性机制 总被引:1,自引:0,他引:1
本文在充分分析了ATM over SDH网在生存性方面所面临的各种问题的基础上,结合ATM over SDH网特有的网络结构,在这种多层网的恢复方案中,针对网状网结构提出了一种基于故障的生成性机制,即在不同的故障情况下采取不同的恢复/保护措施,从而满足网络对生存性的要求。 相似文献
12.
同步数字系列(SDH)比传统的准同步数字系列(PDH)具有许多明显的优点。这篇文章介绍了微波SDH传输设备在通信网中的应用,并讨论了研制微波SDH设备的关键技术。 相似文献
13.
14.
15.
16.
17.
《Computers & Operations Research》2005,32(2):379-394
In this paper, we address the SDH network design problem (SDHNDP) which arises while designing the fixed part of global system for mobile communications access networks using synchronous digital hierarchy (SDH) rings.An SDH ring is a simple cycle that physically links a subset of antennae to a single concentrator. Inside a ring, a concentrator handles the total traffic induced by antennae. Technological considerations limit the number of antennae and the total length of a ring.The SDHNDP is a new problem. It belongs to a class of location-routing problems that introduce location into the multi-depot vehicle routing problem. In this paper, we precisely describe the SDHNDP and propose a mixed integer programming-based model for it. Furthermore, we devise a heuristic algorithm that computes a feasible solution.We report the results of our computational experiments using the CPLEX software, on instances comprising up to 70 antennae or six concentrator sites. An analysis provides insight into the behavior of the lower bound obtained by the LP relaxation of the model, in response to the network density. This lower bound can be improved by adding some valid inequalities. We show that an interesting cut can be obtained by approximating the minimum number of rings in any feasible solution. This can be achieved by solving a “minimum capacitated partition problem”. Finally, we compare the lower bound to the heuristic solution value for a set of instances. 相似文献
18.
19.
本文介绍了典型的宽带城域网组网技术,包括千兆以太网(GE)技术、POS(Packet over SDH)技术、以SDH为基础的多业务传送平台(MSTP)技术、ATM技术以及弹性分组环(RPR)技术,对它们的特点、优缺点和适用范围进行逐一分析,并给出了宽带城域网的设计原则。 相似文献
20.
提出了基于SDH(同步数字系列)传输技术实现雷达数据宽带传输的方案,给出了实现雷达数据传输的SDH网络拓扑结构和虚级联的数据通道分配方案。 相似文献