复杂产品研发技术风险管理研究与应用

从分析和控制产品研发技术风险的角度,定义产品研发技术风险.提出了由产品技术风险和过程技术风险构成的技术风险二维模型,建立了复杂产品研发的技术风险管理体系结构.在功能层次上,技术风险管理包括技术风险识别、技术风险评估、制订风险处理计划、技术风险跟踪、技术风险控制;而在过程层次上,则包括总体系统级、子系统级、部件级、工艺级和制造级等过程.最后,结合高精度光刻机产品研发,对复杂产品研发技术风险管理进行了应用验证.     

网络安全技术与校园网络安全解决方案刍探

网络作为信息化建设的主要载体,网络安全已经成为当前网络建设中不可忽视的重要问题.网络安全防范在技术层次上主要有防火墙技术、安全审计技术、身份验证技术、数据加密技术、入侵监测技术等手段.分析了校园网的特点和安全隐患,提出了相应的技术解决手段和管理策略.     

虚拟华师校园三维模型的构建

介绍了构造三维模型相关的技术,包括模型制作技术、实例技术、外部引用技术、LOD技术和图像处理技术.以虚拟华师校园为例,详述了场景建模的过程,内容包括:资料的准备、在Creator建模平台中创建三维模型和进行模型的集成.并以建筑物的建模过程详细介绍了模型的构建步骤.     

等离子体在绿色技术中的发展

随着绿色技术的兴起,绿色技术的研究已成为热点.阐述了绿色技术与可持续发展的关系,分析了绿色技术在国内外的发展现状,及其在食品加工和包装、纺织、化学工业和环境等典型领域的创新与应用.重点阐述了等离子体技术在海洋外来生物入侵性传播和海洋赤潮灾害治理、大气污染治理及消除生物污染等方面的应用.     

几种流行的数据库应用开发技术

随着计算机技术的发展,数据库应用开发技术也发生了巨大的变化,像FoxBASE、FoxPro等传统数据库开发软件已不能满足信息系统的要求.本文讲述了几种常用的数据库应用开发技术,包括ASP技术、ASP.net技术和JSP技术,对J2EE的应用框架进行了简要说明,并对每种技术的编程方式.特点和数据库访问技术进行了阐述.     

艺术·技艺·技术--西方艺术的历史性及其相关问题

本文分析了西方艺术的历史性生成,并区分了艺术、技艺和技术的自身边界.在此基础上,作者试图指出对于现代和后现代艺术而言,艺术不再是创造,而是技术的技术化.通过对于艺术、技艺和技术的思考,艺术应回溯到技术的技艺的层面,让技术通过技艺回归艺术.     

中国膏体技术发展现状与趋势

膏体技术能够有效解决采矿引发的环境和安全问题,是实现绿色开采的关键技术,近年来在国内矿山得到了迅速推广.科学进步加速了膏体技术智能化控制、精准化制备和个性化采充的步伐,提升了我国膏体技术的研究水平.介绍了膏体技术基本概念和特点并统计了膏体技术在中国的发展历程,系统性分析了我国全尾砂浓密脱水技术、结构流管输技术、采场多场影响机制、新材料开发和膏体工程化实验室建设最新研究进展,同时对膏体技术在井下充填和地表堆存领域的实践效果进行了介绍.指出了膏体技术仍面临着严峻挑战,并将从数字化和智能化方面突破,实现浓度自适应控制、膏体精密制备、采场个性化充填和系统3D模块化设计装配,引领中国矿业绿色发展.     

管窥机械设计制造及其自动化的发展方向

从工业革命到现在,机械制造行业已经存在了三百多年的发展历程.我国机械制造企业经过了近几十年的发展,积累了丰富的生产和管理经验.从整个行业发展的大环境来看,与电子、信息、高新技术行业技术创新的高频率来比,中国传统机械制造行业的产品更新发展速度较为稳定.机械设计制造及其自动化是综合利用了多种技术,从而系统地在多功能、高质量、高可靠性和低能耗的意义上实现特定功能价值并使整个系统最优化的系统工程技术.这些技术既包含机械技术、微电子技术、自动控制技术等系统上的技术,也包含一些辅助支持技术比如转换技术、软件编程技术等.本论述主要分析机械设计制造及其自动化的发展方向.     

胚胎移植技术的研究进展及前景展望

哺乳动物胚胎移植技术主要包括超数排卵、胚胎回收、胚胎冷冻和解冻及胚胎的移植等技术环节.胚胎移植技术是目前生殖生物学和畜牧繁殖学领域应用较为广泛的一项技术,从它诞生至今,已体现出了其巨大的研究和应用价值.就该技术的相关内容和研究进展作了系统综述,并对其发展前景作了预测.     

基于MCS-51单片机的智能电动阀门控制器

阀门是管道系统中应用最广泛的执行机构.随着机电一体化技术和计算机控制技术的发展,实现阀门的数字化、智能化和网络化已经变得十分迫切.设计了一种基于MCS-51单片机的智能电动阀门控制器,给出了硬件设计、部分软件流程图及控制方法.采用了智能控制、自校正、自诊断和数字通信等技术,提高了系统的实时性和可靠性.实现了电动阀门的数字化、智能化和网络化.     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that     

On the Thermodynamic Limit for Responses to Static Electromagnetic Fields

For molecular systems,the quantum-mechanical treatment of their responses to static electromagnetic fields usually employs a scalar-potential treatment of the electric field and a vector-potential treatment of the magnetic field.Although the potential for each field separately is associated with the choice of an(unphysical)origin,the precise choice of the origin for the electrostatic field has little consequences for the results.This is different for the     

Call for Papers

<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with     

Journal of Donghua University ( English Edition) Contents of Volume 31

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