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多水源管网供水方式研究 被引量:6
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作者 贾宝秋 张秀双 +1 位作者 付明庆 卢姗姗 《沈阳建筑大学学报(自然科学版)》 CAS 北大核心 2012年第5期915-920,共6页
目的为了保证城市供水的可靠性,满足用户对用水量的需求.方法对城市多水源给水系统的配水实行分时分级供水方式并对此理论进行分析,建立分时分级方程.结果得出满足用户逐时用水量变化的多水源管网供水方式,使水量调节从静态变为动态.结... 目的为了保证城市供水的可靠性,满足用户对用水量的需求.方法对城市多水源给水系统的配水实行分时分级供水方式并对此理论进行分析,建立分时分级方程.结果得出满足用户逐时用水量变化的多水源管网供水方式,使水量调节从静态变为动态.结论分时分级供水是城市多水源给水管网供水的一种有效方式,适应了城市用水量的逐时变化,使泵站和管网设计、运行更合理. 展开更多
关键词 多水源 分时分级 供水 管网
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Statistical Analysis of the Relationship between Macroscopic Anomalies and Earthquakes
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作者 Lu Shuangling Qu Baoan +5 位作者 Cai Yin Zhang Ming Zhao Xiaohe Zhao Rui Yu Cheng Li Bo 《Earthquake Research in China》 CSCD 2015年第4期539-553,共15页
Macroscopic anomalies from"Earthquake Cases in China"are statistically analyzed in this paper. The conclusion is as follows: The probability of occurrence of macroscopic anomalies before earthquakes increase... Macroscopic anomalies from"Earthquake Cases in China"are statistically analyzed in this paper. The conclusion is as follows: The probability of occurrence of macroscopic anomalies before earthquakes increases with magnitude. The larger the earthquake magnitude, the more macroscopic anomalies appear. The temporal distribution of macroscopic anomalies is as follows: There are few macroscopic anomalies at beginning; as time goes on,the number of macroscopic anomalies increases; the increase of macroscopic anomaly quantity accelerates with the impending earthquake and reaches a climax when the earthquake breaks out. The spatial distribution pattern of macroscopic anomalies is as follows: macroscopic anomalies appear at the epicenter at the beginning,then spread out,and finally arise explosively at the epicenter area. 展开更多
关键词 Macroscopic anomaly Relationship with earthquake Animal anomaly Groundwater anomaly
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