我国纯碱生产循环经济模式探讨

分析现阶段我国纯碱工业循环经济理论模型和实践模式。阐明了通过“点”和“面”结合发展循环经济,能够达到节省投资、节能降耗和降低成本等目的,从而提高行业竞争力,实现行业的可持续发展。     

Treatment of metalworking fluids: development of a bioconsortium for the treatment of nanofiltration permeate

Traditional treatment methods of waste metalworking fluids produce an aqueous phase containing toxic components and with a high Chemical Oxygen Demand (COD). In this paper, a biological solution is proposed to further reduce both the effluent COD and its toxicity. A method to develop a bioconsortium from microbes found in the waste metalworking fluid is proposed. The development took place in three phases: feasibility, bioconsortium development and optimisation. Flask tests have been used to show the feasibility of using the metalworking fluid indigenous microbial community for the degradation of the nanofiltration permeate of the metalworking fluid. A suspended bioreactor allowed the development of a better‐adapted consortium. Finally, a fixed bed bioreactor inoculated with the developed bioconsortium was set up and run for 8 months to test the bioconsortium's robustness and to optimise the biological process. A bioconsortium was successfully developed using a simple method and a 90% reduction in the original nanofiltration COD level was achieved by the fixed bed bioreactor. Copyright © 2005 Society of Chemical Industry     

新、旧煤气净化系统并网过程中出现的问题与解决办法

本文对焦化厂煤气系统并网过程中出现的问题进行了分析，同时提出了解决办法，以便于其它厂矿进行此项工作时参考。     

应用灰色关联分析法评价选矿生产综合效益

尝试灰色关联分析法在选矿生产管理中的应用，通过实例验证了该方法不仅可行而且实用。     

A study of multi-user diversity technology on MIMO-OFDM system

In this paper, we study the orthogonal frequency division multiplexing （OFDM） for transmission of signals over wireless channels, and the multiple-input multiple-output （MIMO） for assisting fading and improving link reliability without sacrificing bandwidth efficiency. The technologies of OFDM and MIMO are combined to be used in next generation high-rate wireless mobile systems. After simulations, we could see that the combination of OFDM and MIMO seems to be very promising when aiming at the design of very high-rate wireless mobile systems. Together with the simulations, we describe the application of OFDM and outline the block diagrams of an OFDM modulator and demodulator and a MIMO-OFDM system. And also we study several methods for combining the different diversity at the receiver, and analyze the performances of diversity in OFDM-MIMO system with simulation results.     

论高职艺术设计专业工学结合教育模式

通过解读工学结合、艺术设计专业教学和市场对人才的需求三个方面,运用设计教育历史与现实比较的方法,重点对高职艺术设计专业特点、学生现状、师资建设、专业教学、课程建设以及当前市场经济发展对专业技术人才需求的紧迫性等方面的分析,揭示工学结合模式对高职艺术设计专业教育的重要性。     

论标志设计意象的妙合

标志的设计创意过程是概念的综合与创造的过程,在创意(意)与表现(象)、造型元素的提炼与组合、形式美法则的运用、继承与发展等方面进行综合创造,达到巧妙的融合.文中用孝感学院标志形象设计案例阐述了作者在标志设计创意方面的独特感悟--"意象的妙合",一个标志可以在形与意、具象与抽象、图与底、动与静、聚与散、新与旧等多方面同时形成"妙合"关系.     

9E型联合循环发电机组停机方式的优化分析

为改变原燃气蒸汽联合循环机组停机操作时间长、经济性差的现状,在确保设备安全的前提下,对原停机操作步骤作相应调整、优化。优化调整后缩短了停机时间、降低了油耗、提高了经济效益。对同类型发电机组操作方法的改进具有普遍的参考意义。     

超高层民用建筑给排水设计简介

通过对某银行大厦的设计,对建筑高度超过100m的公共建筑的给排水系统有了更深刻的理解,对生活给水系统及消防给水系统的竖向分区有了更深入的掌握,本文就该设计的过程与体会与大家分享。     

校园网上教育资源的整合方案

从宏观上提出了校园网上教育资源整合的技术策略 ,阐明了校园网上教育资源管理系统的体系结构