Bin-Yong Liang, Er-Lei Zhang, Jian Li, Xin Long, Wen-Qiang Wang, Bi-Xiang Zhi-Wei Yi-Fa Chen, Wan-Guang Bin Mei, Zhen-Yu Xiao, Jin Gu, Zun-Yi Shuai Xiang, Han-Hua Dong, Lei Peng Zhu, Qi Cheng, Lin Zhan-Guo Bin-Hao Wei Xiao-Feng Liao, Tao Yin, Dong-De Wu, Jiang, Yu-Feng Yuan, Zhong-Lin Yao-Bing Kai-Yan Wan Yee Lau, Xiao-Ping Zhi-Yong Huang

We study the performance of Selective Acknowledgments with TCP over the ATM-UBR service category. We examine various UBR drop policies, TCP mechanisms and network con gurations to recommend optimal parameters for TCP over UBR. We discuss various TCP congestion control mechanisms compare their performance for LAN and WAN networks. We describe the e ect of satellite delays on TCP performance over...

Der vorliegende Beitrag führt in das Thema Netzwerkvirtualisierung ein, beleuchtet die unterschiedlichen Methoden in LAN, WLAN und WAN und zeigt anhand konkreter Praxisbeispiele, inwieweit die konsequente Virtualisierung von Netzen – wir sprechen von „Total Network Virtualization“ – Unternehmen helfen kann, sowohl bei den Investitionen als auch bei Betriebskosten massiv Kosten zu reduzieren. 1 ...

Optimum controller placement in the presence of several conflicting objectives has received significant attention Software-Defined Wide Area Network (SD-WAN) deployment. Multi-objective evolutionary algorithms, like Non-dominated Sorting Genetic Algorithm II (NSGA-II) and Particle Swamp Optimization (MOPSO), have proved helpful solving Controller Placement Problem (CPP) SD-WAN. However, these a...

Thirty-seven infertile patients with varicocele were treated with Guizhi-Fuling-Wan (7.5 g/day) for at least 3 months. Before and after the administration, semen qualities such as sperm concentration and motility were examined, and the varicocele was graded. A varicocele disappearance rate of 80% was obtained with 40 out of 50 varicocele, and improvement of sperm concentration and motility were...

The paper addresses the issue of TCP-friendly congestion control mechanism for many-to-many communication environment. Lack of congestion control inhibits deployment of WAN applications that involve collaboration of groups of processes in the Internet environment. Recent efforts targeted unicast WAN congestion control (TFRC). We extend that approach to multicast many-tomany applications that op...

counted for 2.5% of all non-Hodgkin’s lym phoma (NHL) in south ern Tai wan ac cord ing to our pre vi ous study. There have been only three larger se ries on PBL from Tai wan. Huang et al re ported seven cases in 1987, with em pha ses on the pro tean clin i cal and ra dio log i cal man i fes ta tions. There were five dif fuse histiocytic lym pho mas and one case each of dif Chi nese Med i cal Jo...

4 Wan-li Liu , Yue-hao Lin , Han Xiao, Shan Xing, Hao Chen, Pei-dong Chi, 5 Ge Zhang* 6 7 State Key Laboratory of Oncology in Southern China, Collaborative Innovation 8 Center of Cancer Medicine, Sun Yat-sen University Cancer Center; 9 Department of Clinic Lab, Sun Yat-sen University cancer center; 10 Department of Microbial and Biochemical Pharmacy, School of Pharmaceutical 11 Sciences, Sun Ya...