四氧化三锰的制备方法

本文对用各种锰原料制备四氧化三锰的方法进行综合评述     

Impact of Argumentative Negotiation on Collaborative Engineering

Engineering of complex systems involves multiple disciplinary design teams with diversified skills. The team members must work together to make joint decisions, but are often faced with difficulties when trying to reach agreements. Negotiation has been studied as a method for facilitating information exchange, mutual understanding, and joint decision-making. In our previous work, we introduced an argumentative negotiation model to support collaborative engineering. In this paper, we present an experiment study that was conducted to assess the impact of this negotiation support system on the process and the outcome of collaborative design. The results of the experiment have demonstrated the positive effects of the approach.     

商榷用水煤浆代替轻油改造年产30万吨合成氨

介绍用水煤浆代替轻油原料，改造年产３０万吨合成氨装置，重点论述其制氨工艺单元的合理组合和国产化措施。     

基于网络的多媒体课件制作的设计思索

本文论述了网络多媒体教学的特点,提出了多媒体课件制作应该遵循的原则,以及优秀多媒体课件应具备的标准。     

对潭口新区工程方案编制与实践的认识

潭口新区建设方案编制以节能降耗为出发点,机采系统依靠井底流压和目标产量确定工作参数,杆柱组合采用能耗最低设计方法,根据斜井抽油杆侧向力分布状况设计抽油杆扶正器设置间距;注水系统优化地面管网布局,降低了高压注水单耗;集输系统对单井集油管线进行了优化设计,充分利用油井伴生气资源,实现了单管常温集输和单管油气密闭集输,减少了原油损耗,降低了区块的能耗水平。     

精密铸造4种制壳工艺特点分析及改进方向探讨

对目前国内精铸行业中广泛应用的4种制壳工艺的特点进行了分析对比。从精铸件质量比较，水玻璃型壳较差，复合型壳、硅溶胶-低温蜡型壳次之，硅溶胶-中温蜡型壳最好。而从制壳成本比较，水玻璃型壳最低，硅溶胶-中温蜡型壳最高。对这4种制壳工艺分别提出了改进措施。     

运用多媒体课件讲授大学数学课程的几点体会

针对大学数学课程的特点,结合教学实践,从教案书写、课堂教学设计、课件的制作三个方面探讨运用多媒体课件的教学体会。     

关于高校毕业生就业数据库编制方法的研究与探讨

高校毕业生就业数据库编制工作量大,时间紧,任务重,责任重大,每逢毕业生离校临近之际,便是就业工作人员夜以继日地加班之时。本文介绍运用VF制作毕业生就业数据库,可以轻松完成就业数据库的编制。     

Condition evaluation of existing reinforced concrete bridges using fuzzy based analytic hierarchy approach

There is an urgent need for a systematic methodology for condition assessment of the bridges because the old bridges of most of the countries are inadequate to carry current-day traffic and satisfy the present codal provisions and even in newer bridges, deterioration caused by unforeseen service condition and deferred maintenance is of great concern. In view of this, an attempt has been made in this study to develop a systematic procedure and formulations for condition evaluation of existing bridges using Analytic Hierarchy Process in a fuzzy environment. Analytic Hierarchy Process (AHP) is an efficient decision making tool for complicated problems with multiple evaluation criteria and uncertainty. Fuzzy logic approach has been used to take care of the uncertainties and imprecision in the bridge inspector’s observations. In this paper, first, a methodology has been proposed for condition ranking of number of reinforced concrete (RC) bridges. Then, based on the results obtained from prioritization, rating of the most deserved bridge has been carried out using MADM based fuzzy logic. Computer programs have been developed based on the formulations presented in this paper for evaluating condition of existing bridges and the details are presented in the paper. The methodology and its application are demonstrated through a case study. This methodology would certainly help the engineers and policy makers concerned with bridge management to overcome the problem related to prioritization and decision on funding related to rehabilitation of bridges.     

基于工作过程的网页制作技术课程改革

为了提高计算机专业课程的教学质量和学生的专业技能,必须对现在的课程教学模式进行改革,以适应现代企业对高职人才的要求,实现教学与就业岗位零距离接轨。以网页制作技术课程为例,根据课程对应的职业岗位群,分析网页设计师在工作过程中所需要的能力,并以此为依据设置教学内容,安排实训项目。实践证明,课程改革情况良好,学生的学习兴趣大大提高,并积极参与项目锻炼,专业技能得到了提升。