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借助中国2010上海世博会的契机,对给水排水新技术情况进行了全面调研,总结了世博会上展示和应用给水排水新技术的展馆和地标,解读了各个国家和地区向世界展示的给水排水方面的最新技术和先进理念,展望了城市给水排水技术未来发展的动态及趋势,指出了世博后上海给水排水技术的重点发展方向. 相似文献
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莱芜铁矿选矿厂在污水处理过程中采用工业微机进行控制,通过合理设定各项参数,使外排水达标,同时提高了浮选精矿回收率。 相似文献
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介绍了新加坡污水处理、海水淡化和污水回用的基本情况,结合深圳市实际,提出深圳市水资源利用的粗浅建议。 相似文献
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分析了株洲市非公有制经济的现状及其原因,论述了财政收入的受制因素,在此基础上提出了发展非公有制经济增加财政收入的对策. 相似文献
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通过分析H型钢的生产背景及现状,明确了综合成材率对于钢铁企业降低生产成本、提高市场竞争力的重要性。分析日常生产过程中影响综合成材率的制约因素,合理制定措施有效消除制约因素对于成材率的影响。 相似文献
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对小城镇给水工程规划的几点认识 总被引:1,自引:0,他引:1
任大伟 《有色冶金设计与研究》2003,24(3):57-58
通过东莞市洪梅镇给水工程规划的实例,提出对小城镇给水工程规划中用水量预测、给水系统布局、管网规划等问题的几点认识。 相似文献
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2010年和2015年陇南市相继发生重大尾矿外泄事故,尾矿库安全形势极其严峻。因此,为了预防和阻止尾矿库事故的发生,对陇南市尾矿库环境安全现状进行了统计分析,总结出目前陇南市尾矿库的特点及存在的环境安全隐患。结果表明:陇南市尾矿库以铅锌矿和山谷型尾矿库为主,规模小,数量多,安全度水平较低;部分尾矿库无证运行,相关资料不完善;多数尾矿库未进行合理闭库措施,环境风险重大。对陇南市所辖县区的12座尾矿库进行实地调查,分析了陇南市尾矿库合理闭库存在的问题,提出如下解决措施:采用扩挖回填法、灌浆法和土工布覆盖法等措施对坝体存在裂缝的尾矿坝进行修复处理;对“零”坡度排水沟进行V字形、“拱桥形”或“梯形”坡度设计,将环库截洪沟设计为低于库区表面;改滩面反坡为顺坡设计;对稀薄覆土或裸露滩面实施库顶部压覆碎石、上部覆土并恢复植被;闭库后加强管理,完善监测设施。 相似文献
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Kay Aaron C.; Gaucher Danielle; Peach Jennifer M.; Laurin Kristin; Friesen Justin; Zanna Mark P.; Spencer Steven J. 《Canadian Metallurgical Quarterly》2009,97(3):421
How powerful is the status quo in determining people’s social ideals? The authors propose (a) that people engage in injunctification, that is, a motivated tendency to construe the current status quo as the most desirable and reasonable state of affairs (i.e., as the most representative of how things should be); (b) that this tendency is driven, at least in part, by people’s desire to justify their sociopolitical systems; and (c) that injunctification has profound implications for the maintenance of inequality and societal change. Four studies, across a variety of domains, provided supportive evidence. When the motivation to justify the sociopolitical system was experimentally heightened, participants injunctified extant (a) political power (Study 1), (b) public funding policies (Study 2), and (c) unequal gender demographics in the political and business spheres (Studies 3 and 4, respectively). It was also demonstrated that this motivated phenomenon increased derogation of those who act counter to the status quo (Study 4). Theoretical implications for system justification theory, stereotype formation, affirmative action, and the maintenance of inequality are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
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Vladimir Mirlas 《Canadian Metallurgical Quarterly》2009,135(3):269-278
High water table and soil salinization processes are common in irrigated fields in Israel. Subsurface drainage systems are a common technique to solve soil salinity problems. Subsurface drainage models can contribute to the efficiency of the drainage system as it can assist in the selection of the proper drainage system and its proper placement in the field. In this study we used the MODFLOW groundwater flow model to simulate groundwater levels in Jahir irrigated fields, the Jordan Valley, Israel. Using a three-layer groundwater flow model, the most efficient drainage system was found to be a combination of deep drains with relief wells and a pump placed in the area with soil salinity problem and upward hydraulic pressure. It was found that simulated drainage system can yield nearly 200,000?m3 of water per year. Given certain information, a spatially distributed groundwater flow model such as MODFLOW can provide more reliable information than different analytical solutions for planning of an effective subsurface drainage system. 相似文献