风口防灌渣自动控制系统在信钢高炉的应用

炼铁厂每年多次发生因各种事故造成风机突然停风事故,严重的导致风口全部灌渣,为公司造成了一定的损失。不在同一供电线路上的两台风机间安装一套拨风系统,该套拨风系统可以有效的避免风机突然停风时高炉灌风口事故的发生。只要有效地拨风一次即可从避免事故的损失中把安装的两套总投资弥补回来。     

水利基础设施项目效益审计评价指标及模型构建

水利基础设施项目效益审计评价指标较为缺乏,而且尚未构成体系.研究和建立效益审计评价指标体系的目的是对人们的意识和行为有一个引导作用,从水利基础设施项目立项、设计、施工、竣工后营运等环节都能使人们有一种意识,既要考虑项目带来的经济效益还要考虑社会效益和环境效益.文中根据水利基础设施的特点,运用定性与定量相结合的方法构建了水利基础设施项目效益审计评价指标体系,并建立模糊综合评价模型,综合评价水利基础设施项目的经济效益、社会效益及环境效益.     

宁夏引黄灌区蔬菜喷灌技术研究与示范

为了提升宁夏供港蔬菜喷灌技术应用水平,开展了蔬菜喷灌技术研究,集成喷灌水源工程建设技术、水资源配置技术、黄河水净化处理技术、蔬菜喷灌技术等,建立了蔬菜喷灌技术模式并开展示范.供港蔬菜基地年生产蔬菜4~5茬,每天进行喷灌1~2次、喷灌时间25~50 min,年实际灌溉水量在0.945万~1.875万m3/hm2,产量3.0万~4.5万kg/hm2.实践结果表明,供港蔬菜基地喷灌产量较高,经济效益较好,但用水量较大、水分生产效率较低.未来需严格控制灌水量在4~5 mm/d,降低冬灌用水量,避免初春地面灌溉.     

Influence of Irrigation Modalities (Irrigation Management and Dryland), Fruit Ripening,and Cultivation Modality (Organic and Conventional) on Quality and Chemosensory Profile of Hojiblanca and Picual Extra Virgin Olive Oils

A study with controlled field and authentic samples of olives, obtained in similar conditions of soil, climate, region, harvest, and with the same cultivation techniques and considering simultaneously different agronomic factors (olive variety, fruit ripening degree, irrigation, and organic or conventional production system) is performed to evaluate their influence on quality and added value of extra virgin olive oil (EVOO). Agronomical and physicochemical parameters, polyphenols, tocopherols, and fatty acid composition and volatile and sensory profiles are determined in Hojiblanca and Picual VOOs obtained from different fruit ripening degrees and different cultivation modalities (conventional with and without irrigation, and organic with irrigation). Among volatile compounds, 1-hydroxy-2-propanone, (E)-linalool oxide, and 2-acetylfuran are described for the first time in EVOO. The variable that most influences the chemosensory composition of EVOOs is the variety, followed by the stage of ripeness, and, within each variety, the cultivation modality. Organic irrigation differ from conventional modalities, showing significant differences in acidity, stability, tocopherol and polyphenol contents, fatty acid composition, and sensory attributes. Practical Applications: Results are of great importance, due to their applicability to the EVOO sector, allowing one to know the qualitative, chemical and organoleptic differences between organic and conventional EVOO, and factors that improve the quality and performance of EVOO.     

节水灌溉远程控制系统的设计与实现

介绍了一种以Visual Basic6．0为软件开发平台。采用3级结构的计算机远程控制节水灌溉自动控制系统的设计方案。所有灌溉事件自动插入数据库，并自动形成各种报表。以便对灌溉数据进行统计分析。     

沧州城市用水现状分析与节水措施研究

文中通过对沧州城市生活用水、工业用水等用水主体分析,提出了最终实现水资源的可持续利用,支撑社会经济的可持续发展的措施:一是加强管理,明确考核指标,落实节水管理责任制;二是合理提高水价,用经济手段节水;三是推广使用节水型器具、设备,规范用水器具市场;四是加大节水技改力度,加强科技应用,改变用水工艺等多种节水措施研究。     

污水灌溉问题分析

介绍了污水灌溉的概念、方式及其发展历史,指出在当前水资源紧张和污灌技术已经比较成熟的情况下进行污水灌溉的可行性,重点介绍了以色列的污水灌溉优化模型,最后提出污水灌溉存在的问题并给出了相应的对策.     

废污水灌溉对土壤和地下水水质的影响及控制

结合废污水灌溉现状,分析了各类污水灌溉区不同层次土壤中污染物含量和地下水水质状况,讨论了废污水中不同物质对土壤和地下水影响,并提出了科学灌溉的控制措施.     

井灌水稻区晒水池内井水增温效果试验研究

通过田间试验，探求了井灌水稻区晒水池内井水增温与其几个影响因素的函数关系。水温T与水流经路程L、池内水的流速v、气温T‘等同时对晒水池内水温（静水状况、动力状况）随气温T’、水深H的日变化规律作了初步探讨，建立了相应的数学模型。并推荐设计了几种晒水池增温技术方案，为今后进一步深入研究晒水池内井水增温技术措施、优化晒水池尺寸、优化灌溉制度提供了数量指标与科学依据。     

浅析桦川县星火灌区节水灌溉

介绍了桦川县星火灌区基本情况，浅析了灌区节水灌溉的措施及其效益，提出了目前仍存在的问题及解决途径。