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自动站月报表预审中极值异常现象浅析 被引量:4
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作者 吴昊 吴晓丽 王昌花 《气象》 CSCD 北大核心 2011年第2期254-256,共3页
近年新型自动气象站在地面测报中发挥越来越大的作用,而地面预审是保证气象资料正确性的一项重要工作。随着计算机处理在地面审核中的应用,可以解决数据间相当多的逻辑错误,但由于现行地面气象测报业务软件月报表预审的功能尚不甚完备,... 近年新型自动气象站在地面测报中发挥越来越大的作用,而地面预审是保证气象资料正确性的一项重要工作。随着计算机处理在地面审核中的应用,可以解决数据间相当多的逻辑错误,但由于现行地面气象测报业务软件月报表预审的功能尚不甚完备,以及受仪器故障和失误操作等的影响,容易造成记录的气象要素极值数据出现异常,分析此类问题成因并提出相关处理方法,以及就如何保证B、Z、A、J文件完整性,尤其是B到A文件转换时极值出现错误进行探讨,避免报表数据错误造成错情。 展开更多
关键词 自动站 月报表 计算机预审 极值异常
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A New Congestion Prevention Policy for the Router
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作者 李拥军 周文慧 齐德昱 《Journal of Shanghai Jiaotong university(Science)》 EI 2006年第3期286-289,共4页
The performance of one router will degrade and the network will have congestion because many packets arrive in the router at the same time. A new congestion prevention policy for router, which is based on the M/G/1 re... The performance of one router will degrade and the network will have congestion because many packets arrive in the router at the same time. A new congestion prevention policy for router, which is based on the M/G/1 retrial queue with Bernoulli vacation and generic retrial, vacation, setup and service time, is proposed. In this policy, the packets from other routers find the router busy and the packets will be queued in the orbit in accordance with a first-in-first-out (FIFO) discipline which the router starts to process. Only the packet at the head of the queue is allowed access to the router for processing. The ergodical condition of this model is analyzed and the probability generating functions of content of system are obtained. At last, some performance measures and numerical results are given. 展开更多
关键词 congestion prevention retrial queue first-in-first-out (FIFO)
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