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相较于城市发展,农村污水的排放量相对较少,但在排放的过程中却具有随意性和无序性的弊端,给收集和处理带来了极大的挑战.笔者认为,农村污水处理可以选择分散式的路径,在传统技术演变的基础上,选取不同的组合工艺. 相似文献
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One of the challenging scheduling problems in Cloud data centers is to take the allocation and migration of reconfigurable virtual machines as well as the integrated features of hosting physical machines into consideration. We introduce a Dynamic and Integrated Resource Scheduling algorithm (DAIRS) for Cloud data centers . Unlike traditional loadbalance scheduling algorithms which often consider only one factor such as the CPU load in physical servers , DAIRS treats CPU, memory and network bandwidth integrated for both physical machines and virtual machines . We develop integrated measurement for the total imbalance level of a Cloud datacenter as well as the average imbalance level of each server. Simulation results show that DAIRS has good performance with regard to total imbalance level, average imbalance level of each server, as well as overall running time. 相似文献
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<正>本文针对由拖管、沉井方式施工的污水排水管道项目,拖管施工完成后,由于存在地下障碍物、周边土层情况不理想以及施工工期因素的影响,部分连接井原设计的沉井法无法实施。本文所述沉井深度为10m,通过变更设计采用了钢板桩的支护形式,同时考虑基坑深度较深、施工现场条件复杂,施工影响因素多,施工中钢板桩选用拉森桩形式,并多种措施并举,加强了钢板桩支撑能力,保证了支撑体系的安全。 相似文献
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通过在沥青混合料中利用部分拌合楼回收粉替代矿粉,分析其对沥青混合料性能产生的影响。试验结果表明:掺加一定量回收粉对沥青混合料的水稳定性、高温稳定性和低温抗裂性影响不大。 相似文献
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