土木工程类复合型执业人才培养的研究与实践

根据复合型执业人才培养模式的要求,对土木工程专业理论课程教学内容进行合并、增删、优化组合;在实践教学环节方面,安排大四学生在施工现场实践近1年,由项目经理、工程监理和发包方驻地工程师进行综合指导。理论与实践紧密结合的复合型执业人才培养的改革实践获得了极好的效果。     

国内设计行业如何面对加入WTO后的挑战

中国加入世界贸易组织 (WTO) ,对于我国工程设计行业将产生深刻的影响。工程勘察设计咨询业隶属于服务贸易领域 ,所有成员国都必须接受《服务贸易总协定》(GATS)规定。加入WTO后 ,国外建筑事务所会大量涌入 ,将依靠其先进的技术和管理、优厚的融资能力冲击我们的工程的咨询设计市场。为了能在激烈的市场竞争中立于不败之地 ,分析了解国外事务所的经营管理模式 ,分析国内外工程设计行业的差距 ,研究对策 ,做好准备是当务之急     

高校扩招下工程图学的教学实践与探讨

文章分析了高校扩招给工程图学教学带来的困难 ,并实践和探讨了一种在保证教学质量的前提下提高教学效率的现代教学模式     

Communication of risk: health hazards from mobile phones

Summary. Possible health hazards from mobile phones arise from the use of the phones themselves and via the base stations that relay signals. Except for an increase in traffic accidents induced by the use of mobile phones in cars the evidence for a health hazard is at most indirect, but it cannot be entirely dismissed; the phones have not been widely used for sufficiently long for direct epidemiological studies to have high sensitivity for detecting any induced incidence of cancer, for example. The background and evidence are briefly reviewed and the steps taken in the UK to make information widely available described.     

Circuit optimization via sequential computer experiments: design of an output buffer

In electrical engineering, circuit designs are now often optimized via circuit simulation computer models. Typically, many response variables characterize the circuit's performance. Each response is a function of many input variables, including factors that can be set in the engineering design and noise factors representing manufacturing conditions. We describe a modelling approach which is appropriate for the simulator's deterministic input–output relationships. Non-linearities and interactions are identified without explicit assumptions about the functional form. These models lead to predictors to guide the reduction of the ranges of the designable factors in a sequence of experiments. Ultimately, the predictors are used to optimize the engineering design. We also show how a visualization of the fitted relationships facilitates an understanding of the engineering trade-offs between responses. The example used to demonstrate these methods, the design of a buffer circuit, has multiple targets for the responses, representing different trade-offs between the key performance measures.     

The utilization of prevailing evaluation policy in the selection of performance measures

This study considers the problem of inferring a functional evaluation criterion from existing performance measure policies. The objective is to develop a rational basis by which to adaptively evaluate a current best set of performance measures from alternative sets. The analysis is based on a matrix approach for relating system characteristics to performance measures across a set of activities. A procedure for ranking measure combinations which are candidate implementation alternatives is devised using this matrix representation and cost information. An example illustrating the procedure is presented.     

工科院校"金融工程"专业研究生课程体系研究

结合中国工科院校的自身特点和优势及社会需求,按照培养创新人才的要求,提出工科院校 "金融工程"专业在进行研究生课程体系设置时应从打好理论基础、利用自身的技术性优势、培养有针对性的应用型人才、培养学生的创新精神以及与本校其他院系相结合开拓新的教学和研究方向等五个方面着手。     

交通拥堵与雾霾污染的因果关系——基于收敛交叉映射技术的经验研究

交通拥堵与雾霾污染是制约现代城市发展的两大顽疾,准确识别交通拥堵与雾霾污染之间的交互影响,有助于城市管理者重新审视现行治堵与治霾政策的合理性。本文借助大数据平台采集了我国99个城市的高德拥堵延迟指数（CDI）、空气质量指数（AQI）及六种分项空气污染物浓度日报数据,首次采用收敛交叉映射（CCM）方法实证考察了交通拥堵与雾霾污染之间的因果关系。研究发现,CDI与AQI以及CDI与分项污染物组成的动态系统均呈现明显的非线性与弱耦合特征。基于CCM检验结果,大多数城市的CDI与AQI之间不存在显著的因果关系;从分项空气污染物的角度,大多数城市的CDI与主要空气污染物之间不存在显著因果关系,但与次要空气污染物之间却存在显著的单向或双向因果关系。上述结果表明,尽管交通拥堵与雾霾污染之间有一定关联,但在因果关系上现有的经验证据并不支持两者相互影响,治堵和治霾不能“一箭双雕”而必须“双管齐下”。本文的研究在经验上丰富了关于交通拥堵与雾霾污染交互影响的讨论,对城市管理者更加谨慎与合理地制定治堵政策与治霾政策有重要现实意义。     

大工程文化育工程人的实践探索

大工程文化是河北工程大学基于新时代工程教育实践和学校发展实际,凝练升华而成的大学文化系统,其“十一大”脉系,在学校育人实践中发挥了重要作用,为落实立德树人根本任务提供了精神动力。     

多车场集送一体化车辆调度问题及其遗传算法研究

针对物流配送中的多车场一体化车辆调度问题提出了智能处理方法,采用了基于自然数的一体化配送对路径表示方式,用里程约束来控制车场的插入,以增加惩罚的方式加入时间窗约束。并且根据具体约束情况设计了改进的遗传算法,采用了动态染色体、改进的交叉和变异法、内部扰动和外部扰动等技术,提高了遗传算法的优化效率和优化效果。介绍了此算法的原理,给出了具有一个代表性算例试验结果和结果分析。试验结果表明了此方法对优化有里程和时间窗约束的多车场一体化车辆调度问题的有效性。