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逐时变化源强在大气扩散模型AERMOD中的应用 被引量:1
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作者 程吉 吴成志 张怡悦 《当代化工研究》 2021年第19期87-89,共3页
本文结合实际案例,采用基准年逐时变化风速和年平均风速两种方法分别计算了堆场作业扬尘的起尘量,并采用AERMOD模型预测了两种方法计算的源强对周边大气环境的影响,结果表明:两种方法的全年最大日均浓度和年均浓度差异较大,采用逐时变... 本文结合实际案例,采用基准年逐时变化风速和年平均风速两种方法分别计算了堆场作业扬尘的起尘量,并采用AERMOD模型预测了两种方法计算的源强对周边大气环境的影响,结果表明:两种方法的全年最大日均浓度和年均浓度差异较大,采用逐时变化风速计算源强预测的结果比采用年平均风速源强预测结果要小。 展开更多
关键词 AERMOD 大气扩散模型 逐时变化 堆场源
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Research on logistics domain-oriented cloud resource management model and architecture 被引量:1
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作者 张小东 Zhan Dechen Chu Dianhui 《High Technology Letters》 EI CAS 2017年第1期96-108,共13页
To address the challenges posed by resource shortage or surplus to enterprises productivity,Internet platforms have been widely used,which can balance shortage and surplus in broader environments. However,the existing... To address the challenges posed by resource shortage or surplus to enterprises productivity,Internet platforms have been widely used,which can balance shortage and surplus in broader environments. However,the existing resource management models lack openness,sharing ability and scalability,which make it difficult for many heterogeneous resources to co-exist in the same system. It is also difficult to resolve the conflicts between distributed self-management and centralized scheduling in the system. This paper analyzes the characteristics of resources in the distributed environment and proposes a new resource management architecture by considering the resource aggregation capacity of cloud computing. The architecture includes a universal resource scheduling optimization model which has been applied successfully in double-district multi-ship-scheduling multi-container-yard empty containers transporting of international shipping logistics. Applications in all these domains prove that this new resource management architecture is feasible and can achieve the expected effect. 展开更多
关键词 resource attribute resource service model resource calendar resource management architecture resource service optimized scheduling
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