排序方式: 共有12条查询结果,搜索用时 15 毫秒
1.
2.
3.
金华市雨水资源化潜力及效益评价 总被引:1,自引:0,他引:1
雨水资源化是缓解城市水资源压力的一条经济、快捷、有效的途径。在对金华市雨水资源化的潜力和可行性分析的基础上,结合国内外雨水资源利用实例,对金华市雨水资源化利用的经济效益和生态环境效益进行了定性与定量的评价,并针对金华市本身的特点,提出雨水综合利用的基本途径和措施,对缓解金华市水质性缺水问题、减少城市洪涝灾害、改善城市的生态环境、实现节水型社会的建设和水资源的可持续利用具有一定的指导意义,也可以为金华市今后的水资源规划和经济建设提供一定的参考。 相似文献
4.
5.
6.
金华市区居民用水量影响因素的关联分析 总被引:1,自引:1,他引:0
国内外大量研究表明,居民用水量的变化受多种因素影响。运用灰色关联分析法,对金华市区居民用水量的影响因子进行排序后发现:气温是影响居民用水的主要因子,其次为日照、降水和人口,而住房面积和收入对其影响较小。据此提出关注气候变化,指导供水调度;控制人口,协调供需矛盾;调节水价,推动节水工作等建议,为政府制定相关用水管理政策提供参考。 相似文献
7.
8.
研究表明儿童时期具有的情绪能力,是他们以后生活中能否成功的最好预示.虽然情绪是一种主观意识,但情绪状态的变化总会伴随一定的生理变化.从而我们可以从生理参数的角度,用一套客观的评价标准来研究情绪状态.为了让测试儿童处在一个相对自然的状态,使情绪识别结果的可信度更高,我们提出了"穿戴式"生理参数采集系统的概念.本文的研究重... 相似文献
9.
10.
Constructional and micro-dynamic process of the water-transferring composite was analyzed. This composite can transmit water
to soil with a self-adjustable speed to ensure the survival of seedlings in arid and semi-arid regions when it is embedded
in soil around the roots of the seedlings. It is obtained from natural plant fiber coated with a colloid made by mixing a
certain proportion of polyacrylamide and montmorillonite. The rules of water being transmitted to soil by the coating under
different condition were tested by M-30 quick moisture measure instrument. The process of water-desorption of the coating
material was investigated by a Perkin Elmer Diamond S II thermal multi-analyzer. Moreover, the micro-dynamic behavior was
detected by a FEIQuanta 2000 environment scanning electron microscope. The results demonstrate that montmorillonite has lower
water-desorption energy barrier than polyacrylamide and can lose water more easily. montmorillonite particles bridge up to
be the main water-transmit material at low water potential (when the soil relatively dry or when the temperature is high),
and they break bridge at high water potential while the polyacrylamide acts as the main water-transmit material. 相似文献