石河子雾霾天气成因分析及防治建议

通过对全疆主要城市空气质量指数的收集分析,同时对石河子市雾霾天气不同时期的环境质量监测数据分析比对,得出影响石河子市天气形成雾霾的主要原因并提出防治建议。     

石河子市环境空气质量变化分析

本文从燃煤消耗量的变化、城市小锅炉数量的变化、城市机动车保有量的增加、城市建设和气象条件等五个因素的变化分析了石河子市城市空气质量变化。     

干旱荒漠地区城市空气质量变化分析

文章利用近20年的环境空气监测资料 ,针对干旱荒漠地区的石河子市空气质量变化情况以及可能引起变化的各项条件进行分析 ,从而为干旱荒漠地区的城市生态化建设提供可靠的参考依据。     

“十一五”期间本溪市空气质量变化趋势及改善途径浅析

分析了＂十一五＂期间本溪市空气质量监测数据在不同年度、不同季节和不同污染因子的动态变化趋势,结合本市实际,指出了影响本溪市空气质量的主要因素,探讨了改善空气质量的途径。     

兵团城镇化建设进程中的风险调查研究——以石河子市为例

文章对兵团城市之一——农八师石河子市在城镇化进程中可能存在的风险进行了调查研究,并且对存在不同风险的原因进行了分析,为石河子市城镇化走一条又好又快的可持续发展之路做了一定的基础性工作。     

成都平原经济区城市空气质量时空变化特征

基于2016—2020年成都平原经济区城市空气质量监测数据，应用空气质量综合指数评价法、Pearson相关分析法，对成都平原经济区空气质量时空变化特征、成都市主要污染物变化特征进行了研究.结果表明：1) 2016—2020年，成都平原经济区城市群中空气质量指数出现了2个高值和2个低值中心，高值中心分别位于成都市、德阳市，2个低值中心分别位于雅安市、遂宁市，即成都市和德阳市空气质量最差，雅安市和遂宁市的空气质量最优；对于不同季节，1—12月，成都平原经济区的空气质量综合指数呈U字型变化，即空气质量6—10月较好，11月—次年2月较差.2) 2016—2020年，成都市PM_2.5质量浓度值皆超过了国家二级标准限值，并且以PM_2.5为首要污染物出现频率最高，而O₃、CO、SO₂年均质量浓度在研究时段内均低于国家二级标准质量浓度限值.3) 2016—2020年，成都市PM_2.5质量浓度与能见度呈显著负相关；年尺度上，成都市PM_2.5质量浓度与平均气温呈低度负相关，...     

汉中市城区空气质量现状分析与防治对策

本文利用汉中市2005年1月～2006年12月城区空气质量日报数据分析空气质量状况。结果显示汉中市城区空气质量为二级良，首要污染物为吸入颗粒物，其成因与汉中市不同季节气象要素有密切关系；据此从环境保护管理角度，提出空气污染防治对策。     

试论当前我市房产市场价格定位问题

近年来，石河子市房地产事业取得了很大的发展，对促进当地经济发展起到了重要作用，但一个不容忽视的问题也同时出现：空置商品房面积随之增加。把握最新国家房产政策，剖析当前我市不同收入水平居民家庭，在收入水平、消费水平、消费结构、消费心里以及支付能力等方面的差异性。依据抽样     

城市森林结构对空气负离子水平的影响

选择在吉林市具有代表性的城市森林类型作为研究对象，对不同结构类型城市森林中的空气正负离子浓度进行了测定，并对观测数据进行方差分析。结果表明，不同结构城市森林空气负离子水平差异极显，以乔灌草结构的复层林中空气负离子水平最高，空气质量最佳，空气清洁度等级最高，而草坪的各项指标最低，说明高大乔木对提高空气质量起到主导作用。     

石河子召开建设国家创新型城市推进大会

2月27日，兵团党委常委、副政委、师市党委书记、政委卢晓峰在石河子市建设国家创新型城市推进大会上指出：石河子市做为天山北坡经济带上的区域性中心城市，迫切需要以创新型城市建设为契机，加快区域创新体系建设，优化资源配置、创新发展模式、搭建创新平台、培养创新人才、营造创新环境，     

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