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高坝下游水垫塘内淹没冲击射流实验研究 总被引:1,自引:0,他引:1
结合乌江构皮滩水利枢纽工程,用热膜流速仪在1:380的精细模型上量测了高拱坝挑跌流在水垫糖内的流速场,并由实验成果分析了淹没射流在水垫塘内的消能过程,计算了消能率。同时在1:110的工程模型上量测了水垫塘内的流速场,并与前者进行比较分析。 相似文献
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施工项目进度成本集成管理目标是实现施工过程进度、资源和成本的动态平衡,在管理中起着重要作用。 相似文献
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不同预处理方式对玉米叶和玉米秆酶解率的影响 总被引:1,自引:0,他引:1
1 INTRODUCTION Enzymatic hydrolysis of the cellulose to glucose from inexpensive and abundant sources, followed by ethanol fermentation to produce alternative liquid transportation fuels is very attractive[1―4]. However, lignocellulosic biomass must first be pretreated to open up its structure, so that the high yields vital to economic success can be realized. Pretreatment is currently one of the most expensive steps in such bio- conversion routes, which account for one-third of the total… 相似文献
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