Ecological andthropology is an important subdiscipline of anthropology 摘要生态人类学是人类学领域中一门重要的分支学科。
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As a new programme of science studies , the sociology of scientific knowledge ( ssk ) has been a vigorous subdiscipline since the early 1980s , which has become increasingly influential both within the history and philosophy of science and in sociology and social science more generally 科学知识社会学是科学的社会研究中最活跃的分支学科, 80年代以来在编史学、哲学、社会学和其他社会科学领域产生了广泛影响。
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Combining with the evolution of congestion control mechanisms , the existed technologies for congestion avoidance and recovery in ip networks are reviewed . the unsolved problems and hot spots in subdiscipline , such as tcp flow control , end - to - end flow control and enhanced mechanism in intermediate nodes , are summarized , and the advantages and disadvantages of all kinds of schemes for active queue management are emphatically analyzed 本文回顾了ip网络中已有的拥塞控制技术；研究了internet中tcp的基于窗口的端到端拥塞控制方法以及ip层采用的拥塞控制机制，总结了tcp流量控制和中间节点增强机制等各研究子方向中需要解决的问题。
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