基于改进灰靶的山区隧道施工场地布置方案优选

山区隧道施工场地布置方案评选是一项综合考虑各方面因素的多目标决策问题,为提高山区隧道施工场地布置方案决策的准确性,提出基于改进灰靶决策的方案优选模型。首先,通过分析山区隧道施工场地方案布置主要影响因素,构建方案可行性、方案经济性、环境影响和社会效益影响为核心的山区隧道施工场地布置方案评价指标体系;其次,从原始样本数据量化处理、指标权重赋予、靶心距的计算等方面依次对传统灰靶决策模型进行改进,通过对比各方案靶心距实现方案水平排序与决策;最后,以牛栾村隧道施工场地布置设计方案为例,对上述方法进行验证,研究表明：基于改进灰靶决策评选出的方案与实际选择方案一致,该方法呈现了各方案的优劣,使山区隧道施工场地布置方案评选更科学、合理,并通过指标敏感性分析择出对方案评选影响较大的指标,为决策者做出最终决策提供依据。     

浅谈沿街小商铺的火灾危险性及防范措施

本文对沿街小商铺存在的消防安全隐患及火灾特点进行了归纳总结,对如何充分运用行政、法律、技术防范措施来加强沿街小商铺的消防安全治理,消除各类火灾隐患进行了有针对性的阐述。     

建筑消防设施中的常见问题及对策

近年来,随着消防法律法规的进一步完善、各类专项治理的进一步深入、消防宣传“五进”工作的逐步到位和火灾隐患大排查、大整治工作的向纵深推进,消防安全责任制得到了较好落实,社会消防安全意识普遍提高,火灾隐患严重的局面得到了有效遏制,消防安全环境有了根本改善。但是,由于部分地区经济的相对滞后和少数人消防安全意识的淡薄．一些单位或业主对消防安全仍抱侥幸心理,舍不得花钱按国家要求配备基本的消防设施,致使新的火灾隐患仍在一定程度上不断人为产生。     

探析多权益人建筑场所火灾隐患现象与安全对策

党中央、国务院高度重视消防安全工作,加大火灾隐患排查整治力度。近几年来先后在全国范围内对火灾隐患进行全面普查和跟踪监管。但随着经济社会的快速发展,静态的隐患得以根除,而动态的隐患随着市场经济结构形式的变化而日益凸现,特别是大量的多个权益人合在一起的建筑场所火灾隐患,给消防安全监督管理工作带来了一系列新问题和新要求,多权益人建筑场所消防安全管理长效机制亟待完善。     

基于效用的施工导流方案多目标决策模型

根据水电工程导流方案的选择与导流建筑物的投资费用、工期、系统风险率及其风险损失之间的关 系,提出确定决策者效用函数的方法;运用多目标决策理论建立基于效用的施工导流方案决策模型,对考虑 决策者的风险偏好拟定的导流方案集进行优选。实例分析表明,基于效用的施工导流方案多目标决策模型 能够反映决策者的风险偏好,按照正隶属度极大原则优选导流方案,使决策者获得最大的满意度。     

基于决策者风险态度的导流方案多目标决策研究

以导流方案优选为核心,在效用理论的基础上考虑决策者的风险态度,建立导流系统标准的效用损失函数,在导流系统标准期望效用损失均衡原则的指导下,合理分配施工导流系统风险,制定导流方案,运用多目标决策理论,建立基于决策者风险态度的导流方案多目标决策模型.实例分析表明,该决策模型是有效的,可以较好地解决导流方案的多目标决策问题.     

浅议中学学校消防安全工作

文章以中学学校为研究对象,中学生的消防安全意识不强,火灾隐患比较多,容易酿成火灾事故,而中学承载着培育新生力量的重任,因此提高各行政部门和校领导对中学消防安全的认识,树立和培养广大中学师生的消防安全意识对构建和谐校园是非常重要的。     

ATS资源选择与配置的灰色局势决策模型

ATS研制的日益复杂精细化趋势使得测试资源的优化选择和配置问题也日益突出。针对传统方法存在不足,基于灰色理论和多目标多属性决策理论提出了一种快速、有效的资源选型决策方法:首先综合分析资源选择与配置的重要因素及测试属性,构建了灰色局势资源决策模型;然后通过对多个配置目标加权合成求解该模型,并利用属性权重进行二次决策,最后获得最优的资源选择与配置方案。工程实例分析表明,该方法科学可靠、可操作性强,能够有效解决ATS硬件集成中的测试资源选择与配置问题。     

社区消防网格化管理探讨

随着我国城市化进程不断加快,当前社区消防安全工作已经明显滞后于新形势发展的要求,笔者分析了影响社区消防工作的因素和火灾隐患的成因,提出了实施消防网格化管理,构建和谐社区的具体措施。     

大学校园消防安全思考

根据近年来全国校园火灾频发,损失惨重的事实,分析了校园火灾多,损失重的原因,从根源上探讨了校园中存在的火灾隐患.提出了在校园中建立健全消防安全管理机制,加强消防安全教育,加强消防安全管理,建立良好的消防安全环境的防范措施.     

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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