低铁耗条件下转炉高碳低磷工艺实践与应用

对转炉炼钢实现低铁耗和高碳低磷工艺进行了分析，介绍了南钢公司转炉炼钢实践低铁耗条件下高碳低磷工艺的具体应用措施。     

日本锰质合金生产与锰矿石的消耗

本文全面介绍了日本近年特别是1990年锰矿石进口量和锰铁合金的生产情况。同时还介绍了锰质合金、电解金属锰和电解二氧化锰的进出口情况。日本1990年进口锰矿石143万t,高碳锰铁4.6万t,中、低碳锰铁0.3万t,硅锰21.8t。还列出了进口矿石和硬质合金来源国数量。此外,还介绍了日本重点锰质合金厂的产品。     

HDPE装置超负荷低能耗生产方案的设计与实施

本文介绍大庆ＨＤＰＥ装置提高生产能力及产品质量的方法。通过采用釜外络合催化剂新技术和提浆液浓度可将ＨＤＰＥ装置聚合釜单釜的生产能力由４．７５ｔ／ｈ提高到５．０ｔ／ｈ，各项能耗下降，收到了增产降耗的显著效果，并使产品质量，产量，品种，能耗，物耗，环保６项指标全部达到了设计要求。     

拉动内需要培育农村市场

农村市场是个庞大的消费市场,农民是消费的最大阶层。拉动内需不能不启动农村市场,不能没有农民的参与。     

1997年度大中型钢铁企业节能工作情况综述

第九次节能工作会议后，冶金工业掀起了节能降耗的新高潮。各企业都从本单位 实际出发，狠抓节能降耗工作，节能增效成绩显著。大中型钢铁生产企业全年节能３５０万ｔ标煤，超 出１９９７年初冶金工作会议确定的全行业节能３００万ｔ目标。创造效益２８亿元。     

Effects Of Ozone On The Production Of Biodegradable Dissolved Organic Carbon (BDOC) During Water Treatment

This article deals with the oxidation effect of ozone on the increasing fraction of biodegradable organic matter with the “ozotest” method, a laboratory technique which simulates the effect of ozonation and allows a complete oxidation assessment. Ozone treatment was performed on river water samples and sand filter effluent samples. Ozone consumption, reduction of UV absorbance and BDOC formation were monitored with applied ozone doses from 0 to 10 mg/L and with contact times from 0 to 60 min. The BDOC formation was optimum at an applied ozone dose of 0.25-0.5 mg O₃ per mg DOC (contact time = 5 min) corresponding to apparition of traces of residual ozone and maximum UV reduction. Maximum ozone consumption, UV reduction and BDOC formation occurred simultaneously during the first two minutes of treatment. Concerning BDOC formation, applied ozone dose showed a greater effectiveness than contact time. For the same quantity of consumed ozone, a short contact time associated with a high ozone dose was preferable to a long contact time and a low ozone dose.     

高速公路收费站车辆能耗研究

车辆通过高速公路收费站时,需要减速或停车缴费,当车辆较多时,容易形成排队,产生大量延误,大大削弱了车辆的运行效率,增加了车辆的能耗,同时使得车辆尾气的排放量增加,严重污染了环境。本文使用排队论知识对收费站车辆排队与疏散情况进行分析,减少车辆的排队等候时间和驶离站口所需时间,以达到减少行车能耗的目的。最后,通过一个实例给出几种收费方式下的能耗,并给出了相应的分析和建议,可为高速公路收费方式和能耗研究提供一定的参考。     

公共建筑节能技术的研究与工程应用

目前,随着我国经济的高速发展,对能源的需求也越来越大.而建筑行业是能源消耗的大户,资料显示:建筑能耗占全社会能耗的30%.在房屋建筑中采用高效的节能技术,将极大的减少我国的能源消耗量,有利于缓解我国能源紧张的情况.本文通过对公共建筑采取相应的节能技术措施,改善建筑物的保温隔热性能,从而提高人们的居住品质和工作环境,降低建筑物使用能耗,减少温室效应,让建筑物实现低能耗的运行,从而大大减少有害气体对环境的污染,加速与世界性的环保大趋势接轨.同时引入房屋质量保险制度对增强城市竞争力,保持我国经济的可持续发展和建设和谐社会,起着极为重要的作用.     

重钢新区铁区MES系统研究与实施

针对重钢集团环保搬迁铁区生产单元信息化建设具体要求,开发并实施铁区MES系统,同时简要介绍系统功能及应用效果。     

Exploring the value of purchasing online game items

The aims of this paper are to: (1) modify the theory of consumption values in order to investigate online game users’ perceived value of purchasable game items, and (2) develop a new construct – the “integrated value of purchasing game items” – based on the modified theory of consumption values. We found that the enjoyment, character competency, visual authority, and monetary values are appropriate for describing how online game users perceive the value of game items. Utilizing second order analysis, the “integrated value of purchasing game items” was developed. To show the validity of the new construct, we developed a research model and tested it using the results of 327 valid questionnaires. Results revealed that the new construct is statistically significant in affecting users’ intention to purchase game items.