郑州市水资源开发利用评价及前景分析

采用对比分析方法,分析郑州市水资源开发利用现状,说明郑州市水资源开发利用程度、开发问题和潜力,论证郑州市属于资源缺水型城市,并对今后郑州市水资源的开发利用情况及趋势进行分析,提出一些解决郑州市水问题的途径和方法.     

郑州市2009-2020年人口预测与分析

运用logistic增长模型和非线性回归方法,通过1978-2006年郑州市人口数据对郑州市2009-2020年的人口发展规模作出预测．预测结果显示,郑州市2010年达到793．6396万人,2020年郑州市人口将达到958．86747万人.     

郑州市环境库兹涅茨曲线分析

根据1985~2005年郑州市经济发展主要指标和环境污染物排放量的统计资料,分析了郑州市人均GDP与工业"三废"排放量的相关关系,并建立了经济发展与环境污染之间的模拟模型.研究结果表明:郑州市EKC曲线表现为"U"型、倒"U"型等,目前仍处于工业发展期.最后对郑州市经济与环境的可持续发展问题进行了探讨.     

轨道交通对郑州市空间形态的引导作用

随着郑州城市人口的增加和城市规模的扩大,郑州也开始了轨道交通的建设.国内外的经验表明轨道交通对城市空间形态的引导作用是非常显著的.本文从郑州市城市空间结构现状、轨道交通线网与城市空间形态、轨道交通站点与城市空间形态、轨道交通与城市发展轴、轨道交通与城市中心等五个方面分析探讨了轨道交通对郑州市空间形态的引导作用,推断出轨道交通将形成郑州市空间结构的新骨架,它会引导郑州市向"两轴多中心"城市空间形态发展.     

郑州市城区"八五"─"九五"期间环境空气质量发展变化趋势及规律分析

以"八五"-"九五"期间郑州市城区环境质量监测数据为准,对郑州市环境空气质量发展变化的总趋势进行分析和讨论,从中发现规律,为"十五"期间进一步改善郑州市环境空气质量提出相应的建议和对策.     

城市园林绿地不同群落类型碳储量研究 ——以郑州市公园绿地为例

以郑州市公园绿地中的80个样地为研究对象,比较分析了城市园林绿地中不同群落类型、群落层次等的碳密度和碳储量,同时对郑州市公园绿地植被碳储量进行了总体估算,定量评价了郑州市公园绿地在抵消二氧化碳排放,减缓温室效应方面所起的作用.研究结果表明,郑州市公园绿地不同群落类型及群落层次碳密度存在较大差异,常绿针叶林平均碳密度最大,为85.28 t·hm-2,而落叶阔叶林最小,为50.69 t·hm-2.经估算,2018年郑州市公园绿地总碳储量为294 684 t,可见郑州市公园绿地在增汇减排方面具有巨大潜力,生态效益显著.     

郑州市工业“三废”污染的环境库兹涅茨曲线特征分析

以郑州市为例,选取2000—2015年郑州市人均GDP作为经济指标、工业"三废"排放量作为环境指标,运用EXCEL与STATA统计软件进行数据分析,构建郑州市工业"三废"排放量和人均GDP的计量模型,拟合出郑州市的环境库兹涅茨曲线的回归模型图.研究结果表明,郑州市工业"三废"排放量与人均GDP之间的关系拟合曲线符合"N"形、部分倒"U"形等特征,2000—2015年郑州市人均GDP与工业"三废"的排放量之间的关系并不是全都符合标准的环境库兹涅茨曲线(倒"U"线)关系.最后针对不同的曲线特征对郑州市可持续发展问题进行了探讨并提出政策建议.     

灰色模型在郑州市人口预测中的应用

采用灰色模型法,对郑州市2011—2025年人口发展趋势进行了预测.明确了郑州市未来人口发展趋势的特点,揭示了郑州市未来面临的主要人口问题,并据此提出了有针对性的对策建议,既可供相关部门进行人口与经济社会发展宏观规划时参考,也可为郑州市政府制定发展决策提供支持.     

郑州市大学生排球运动中常见运动损伤调查研究

对郑州市4所高校大学二年级排球教学班的大学生运动损伤情况进行调查,结果显示:郑州市高校95.7%大学生在排球健身中出现过运动损伤,损伤部位集中在肩、手、腕、膝和踝关节.对郑州市大学生排球健身运动中常见的损伤发生部位及损伤类型进行归类,探讨总结常见损伤的原因,并提出相应的预防措施.     

郑州市低碳生态城市评价与发展保障机制研究

我国正处在城市化的快速发展时期,城市发展面临着向低能耗、低排放、低污染的低碳生态化转型,低碳生态城市建设成为我国城市发展转型的趋势.以郑州市为例,依据城市复合生态系统理论和低碳发展理念,构建低碳生态城市评价指标体系,运用熵权-改进的TOPSIS模型对郑州市2000-2009年低碳生态城市进行综合评价,GM(1,1)灰色预测模型对2020年低碳生态发展远景进行预测研究,结果表明:郑州市低碳生态城市评价综合指数呈逐步上升趋势,预计到2020年将达到0.9818.同时,对比分析郑州市2000年与2009年低碳生态城市建设的主要成绩与不足,并运用SPSS提取主成分,分析影响郑州市低碳生态城市建设的主要影响因子,在此基础上提出了郑州市低碳生态城市建设的发展保障机制.     

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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