因子分析法和熵值法在高校科技创新评价中的应用

在已有研究的基础上总结出了一套科学合理并具有可行性的高校科技创新评价指标体系,并把因子分析法和熵值法应用于高校科技创新评价.首先对高校科技创新评价体系的5个一级指标分别进行因子分析,然后运用熵值法对其确定权重.分析结果表明两种方法的结合使用能够简化分析对象的结构,使评价结果更具科学性、客观性.     

关于可信软件开发的若干问题思考

在信息科学时代,现代社会的发展日益依赖软件,实现可信软件的开发在一定程度上契合现代社会的需求,也是自身发展的内部需求。但是,可信软件的开发是一个系统而复杂的过程,强调可信软件开发中各方工作的有效落实。本文分析了可信软件的研究现状,阐述了软件架构与开发,并基于此,论述了强化软件架构,开发可信软件的若干建议。本文旨在强化对可信软件的认识,并为今后相关领域的研究提供一定的参考资料。     

Research and Application of Dynamic Equation for Full Frontal Impact

Full frontal impact theory needs researching and exploring to satisfy the primary safety design of occupant restraint system,avoiding the increasingly "engineering"trend in order to develop and design safety vehicle. After occupant restraint system is simulated by using linear elastic stiffness k,the occupant-vehicle frontal rigid barrier impact model is established. Dynamic equation of dummy chest coupling vehicle is built for full frontal impact based on ordinary vehicle deceleration by Hooke law,and the equation is solved by comparing coefficient and satisfying boundary qualifications. While relative vehicle characteristic parameters are kept unchanging,the actual vehicle deceleration is fitted to the simplified equivalent square wave( ESW),tipped equivalent square wave( TESW) and equivalent dual trapezoids wave( EDTW). Phase angle  and amplitude A of dynamic equations based on ESW,TESW and EDTW are calculated and deduced. The results show that: the dynamic equation of dummy chest coupling vehicle can be well utilized to instruct the primary safety design of full frontal impact for objective vehicle to satisfy chest deceleration demands and the equation based on TESW is best for this design.     

以品牌专业建设为契机 抓住发展机遇 全面提高专业建设质量

专业建设是高等学校最重要的教学基本建设,是教育教学工作的基础和重要生命线,是高等学校人才培养的重要依托。加强本科品牌专业的建设可提升学校本科专业建设的整体水平,提高学校本科人才培养质量、效益和竞争力。文章围绕如何开展品牌专业建设,结合学校实际,着重从品牌专业内涵、建设原则、内容和评价办法等方面进行了阐述。     

冰箱门面板冲压工艺分析及模具设计

分析冰箱门面板的冲压工艺,介绍模具设计中应注意的问题及滚压式结构的特点     

线材轧制技术的新进展

介绍了ＤａｎｉｅｌｉＭｏｒｇａｒｄｓｈａｍｍａｒ公司与Ｍｏｒｇａｎ公司提供的线材生产的新设备、新技术。并对其做了分析比较，特别对实现无序轧制多品种生产进行了讨论，指出新型高效线材轧机、高速切头飞剪和相关技术的采用，将推进线材轧制技术的新进展。     

20G高压锅炉管裂纹原因分析

对20G高压锅炉管产生裂纹的原因进行了分析，结果表明是冷拔工艺不当所致。     

Achievements and developing trend of welding technology in Chinese shipbuilding

ＡｃｈｉｅｖｅｍｅｎｔｓａｎｄｄｅｖｅｌｏｐｉｎｇｔｒｅｎｄｏｆｗｅｌｄｉｎｇｔｅｃｈｎｏｌｏｇｙｉｎＣｈｉｎｅｓｅｓｈｉｐｂｕｉｌｄｉｎｇ￥ＺＨＯＵＧｕｏｓｈｅｎｇａｎｄＷＵＪｉｎｇ（ＳｃｉｅｎｃｅａｎｄＴｅｃｈｎｏｌｏｇｙＢｕｒｅａｕｏｆＣＳＳＣ...     

Effect of surface modification of metal hydride electrode on performance of MH/Ni batteries

A novel method was applied to the surface modification of the metal hydride(MH)electrode of MH/Ni batteries.Both sides of the electrode were plated with a thin silver film about 0.1μm thick using vacuum evaporation plating technology,and the effect of the electrode on the performance of MH/Ni batteries was examined.It is found that the surface modification can enhance the electrode conductivity and decrease the battery ohimic resistance.After surface modification,the discharge capacity at 5C(7.5A)is increased by 212 mA.h and the discharge voltage is increased by 0.11 V,the resistance of the batteries is also decreased by 32%.The batteries with modified electrode exhibit satisfactory durability.The remaining capacity of the modified batteries is 89%of the initial capacity even after 500 cycles.The inner pressure of the batteries during overcharging is lowered and the charging efficiency of the batteries is improved.     

薄壁防渗墙施工工艺

结合建造薄壁防渗墙工程实例,通过分析几种施工工艺的成墙原理和优缺点,合理选择薄壁防渗墙施工工艺。