城市生态林业建设的思考

城市生态林业建设是实现城市可持续发展的理想模式,也是现代城市发展所追求的目标。在二十一世纪,随着生态文明和信息革命的到来,对生态城市的理论及其实践的研究必将得到广泛的重视,研究的深度和广度也将得到进一步的拓展。生态城市的研究既要从国外的研究中吸取精华,又要结合我国的实际情况,走具有中国特色的城市生态林业建设之路。     

生态城市中社会生态的分析框架

生态城市的本质是社会与自然的协调发展,因此,对生态城市的研究离不开对其社会生态的分析.由于社会是极其复杂的,所以,社会分析的模式也应具有相应的复杂程度.文章以卢曼的社会理论为基础,阐述了生态城市社会生态分析的层次和角度,提出了进行社会分析的一系列因子.这种分析框架在厦门市生态城市概念性规划的研究中得到了初步验证.     

城市生态足迹计算方法的设计与案例

生态足迹是从生态学科角度衡量区域可持续发展的一种方法。阐述了生态足迹的概念和计算模型 ,设计了城市生态足迹计算方法。通过对城市物质和能源消费的分析 ,按照耕地、牧地、林地、化石能源用地、建筑用地和水域等土地类型以及食物、住宅、交通、商品、服务和废物等消费类型进行核算 ,建立了生态足迹计算矩阵 ,并同城市生态承载力进行比较。选取了广州、宁波、苏州和扬州 4个城市进行案例研究。结果表明 :案例城市处于生态不可持续状态 ,其人均生态赤字达 2 hm2以上 ;生态足迹分析有助于分析城市可持续发展进程 ,为决策提供参考     

生态城市建设的几点规划思考

生态城市是城市走可持续发展的必由之路,是理想的人居胜境。城市生态规划是建设生态城市的有效方法。如何搞好城市生态规划,目前仍是一个崭新的课题。文章通过如何建设好生态宁国的几点规划建议,试图探索城市生态规划的有效途径。以期对生态城市的建设及城市的可持续发展起到一定的促进作用。     

中新天津生态城确立指标体系

生态城市的指标体系的成功建立有助于定位生态城市发展方向,为生态城市的规划,建设和管理提供指导。本研究在掌握现有生态城市建设经验和指标体系的基础上,结合选址特点,构建出中新天津生态城指标体系,在指标体系结构中创新性地引入定量指标和引导性指标两种考核指标,对生态城市发展建设具有很好的指导作用。     

完善城市生态交通系统 优化市民和谐出行环境——以南京生态城市建设为例

为广大人民群众创造优美、舒适、健康、方便的生活环境,我国推行了“生态园林城市”的创建活动。实施绿色交通,完善城市生态交通系统,建设生态交通系统是生态城市建设的基本内涵之一。本文以南京生态城市建设为例,时生态城市与城市生态交通的关系、生态城市建设对城市交通建设的要求、生态城市整体交通规划理念、建设城市生态交通的措施与方法等方面进行了研究．以期对我国目前实施的国家生态园林城市建设起到一定的指导作用。     

循环经济生态城市建设若干建议

随着经济发展和资源的紧缺,循环经济理论得到了较大的发展,并在生态城市建设中发挥了重要的作用。分析了生态城市建立的条件和步骤,提出了循环经济生态城市建设若干有益的建议。     

生态美学之规约——论新型城镇化背景下生态城市美育观的培植

当前,伴随城镇化建设所产生的各种生态问题,越来越多的人士开始关注如何实现从工业文明到生态文明的过渡。人与自然和谐共生下的生态美学观点由此产生并得到重视,这是生态美学的新规约,也是当代美学适应现实发展的重要表现。本文通过分析当代人类居处的生态诉求,解读生态美学对城市生态学的发展意义;并结合我国开展新型城镇化的实践,探讨城市生态美育观的现实意义。     

创新市容环卫管理打造生态宜居南安

建设生态宜居城市是现代城市的发展方向,搞好市容环卫管理是建设生态宜居城市的关键环节.该文借鉴现代城市管理的研究成果,结合南安市市容环卫管理的实践经验,从建章立制、规范管理、城乡统筹、文明建设等方面对现代生态城市建设进行剖析、探索,具有较强的操作性、实用性.     

生态城市基本问题研究

生态城市的兴起和发展是可持续发展理念逐步深入与城市化进程中的必然。作为一个新概念,生态城市建设以生态城市系统为基础,有独特的构成、功能和运行机制。文章研究了生态整体规划设计方法的基本思想和原则,并试图归纳生态城市的主要模式,根据不同类型的城市指出相应的发展方向。     

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     

An affordable accurate evaluation of the binding conformations predicted by molecular docking studies in bio-system

Franck-Condon factors bridge the gap between theoretical modeling and experimental observations for molecular electronic spectroscopy and electron transfer.Under the displaced harmonic oscillator approximation,multidimensional Franck-Condon factors are decomposed into a product of many one-dimensional(1D)Franck-Condon(FC)factors,and each 1D-FC factor is associated with one Huang-Rhys factor that determines the leading contribution of     

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