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区域水资源开发利用的阈限分析 总被引:108,自引:3,他引:108
区域水资源总量的有限性决定了其开发阈限存在的客观性。本文提出了区域水资源开发利用的总体模式,通过阈限分析,利用模糊综合评判模型确定了当前汉中盆地平坝区水资源开发利用所处的阶段,并提出相应的开发对策。 相似文献
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本文结合笔者多年的工作经验以及具体工程案例,主要对湖州广电梅地亚中心中的建筑规划设计作出了相关的阐述分析,以供读者参考。 相似文献
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采用凝胶型强碱性阴离子交换树脂与四丁基溴化铵溶液进行离子交换制取四丁基氢氧化铵溶液,考察了适宜的合成工艺条件。结果表明,四丁基溴化铵的浓度为27.0%,温度为15℃,再生液NaOH浓度为5.0%,交换柱内离子交换树脂的高径比为15时,交换度大于86.0%,产品(C4H9)4NOH(四丁基氢氧化铵)的溶液浓度大于10.0%。方法简单,离子交换树脂可再生。 相似文献
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湖州市织里中国童装城专业市场二三期修建性详细规划遵循现代、生态、以人为本和综合效益的原则,侧重于以国际性视野、前瞻性理念确定童装城专业市场二三期的功能定位、功能分区、组织模式、建筑设计。 相似文献
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The gap probability model for canopy thermal infrared emission with non-scattering approximation 总被引:1,自引:0,他引:1
To describe canopy emitting thermal radiance precisely and physically is one of the key researches in retrieving land surface temperature (LSI) over vegetation-covered regions by remote sensing technology. This work is aimed at establishing gap probability models to describe the thermal emission characteristics in continuous plant, including the basic model and the sunlit model. They are suitable respectively in the nighttime and in the daytime. The sunlit model is the basic model plus a sunlit correcting item which takes the hot spot effect into account. The researches on the directional distribution of radiance and its relationship to canopy structural parameters, such as the leaf area index (LAI) and leaf angle distribution (LAD), were focused. The characteristics of directional radiance caused by temperature differences among components in canopy, such as those between leaf and soil, and between sunlit leaf or soil and shadowed leaf or soil, were analyzed. A well fitting between experimental data an 相似文献
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