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Distributions and sources of n-alkanes in PM_(2.5) at urban,industrial and coastal sites in Tianjin,China

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Journal of Environmental Sciences 2010年第10期22卷 1551-1557页

作者： weifang li Yue Peng Zhipeng Bai State Environmental Protection Key Laboratory of Urban Ambient Air Particulate Matter Pollution Prevention and Control College of Environmental Science and Engineering Nankai University Tianjin 300071 China. Tianjin Academy of Environmental Protection Science Tianjin 300191 China liaoning Provincial Environmental Monitoring Center Shenyang 110031 China

Aliphatic hydrocarbons （n-alkanes） associated with fine particulate matter were determined in the ambient air of urban, industrial and coastal areas in Tianjin, China, where intensive coal burning for industrial and domestic purpose takes place, n-Alkane homologues from C12 to C35 were quantifiable in all samples with C20-C31 being the most abundant species. Average concentrations of the total n-alkanes were 148.7, 250.1 and 842.0 ng/m3 in July, April and January, respectively. Seasonal variations were mainly attributed to ambient temperature changes and coal combustion for residential heating. Among the three studied areas, the highest levels of n-alkanes were observed in the industrial complex in winter and spring, but in summer the coastal alkane concentration moved up to the highest. A mono-modal distribution for n-alkanes was observed in spring and summer with odd carbon number predominance and a maximum centered at C27-C31, suggesting the release of plant wax into the atmosphere. The bimodal distribution with maxima at C22 and C26 observed in winter indicated a substantial influence of fossil fuel sources. All the CPIs （CPI1, CPI2, CPI3） values, varying between 0.64 and 1.97, indicated the influence of anthropogenic emissions on fine organic aerosols. The estimated contributions of plant wax to total n-alkanes were on average of 12.9%, 19.1% and 26.1% for winter, spring and summer, respectively.

关键词： PM2.5 n-alkanes distribution pattern CPIs plant wax

Chemical composition of PM_(2.5) during winter in Tianjin,China

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Particuology 2011年第3期9卷 215-221页

作者： Jinxia Gu Zhipeng Bai weifang li liping Wu Aixia liu Haiyan Dong Yiyang Xie Tianjin Institute of Urban Construction Tianjin 300384 China State Environmental Protection Key Laboratory of Urban AmbientAir Particulate Matter Pollution Prevention and Control College of Environmental Science and Engineering. Nankai University Tianjin 300071. China Tianjin Institute of Meteorological Instruments. Tianjin 300074 China Tianjin Environmental Monitoring Central Station Tianjin 300191 China

PM2.5 samples for 24h were collected during winter in Tianjin, China. The ambient mass concentration and chemical composition of the PM2.5 were determined. Ionic species were analyzed by ion chromatography, while carbonaceous species were determined with the IMPROVE thermal optical reflectance （TOR） method, and inorganic elements were measured by inductively coupled plasma-atomic emission spectrometer. The daily PM2.5 mass concentrations ranged from 48.2 to 319.2 μg/m^3 with an arithmetic average of 144.6 μg/m^3. The elevated PM2.5 in winter was mostly attributed to combustion sources such as vehicle exhaust, heating, cooking and industrial emissions, low wind speeds and high relative humidity （RH）, which were favorable for pollutant accumulation and formation of secondary pollutants. By chemical mass balance, it was estimated that about 89.1% of the PM2.5 mass concentrations were explained by carbonaceous species, secondary particles, crustal matters, sea salt and trace elements. Organic material was the largest contributor, accounting for about 32.7% of the total PM2.5 mass concentrations. SO4^2-, NO3^-, Cl^- and NH4^＋ were four major ions, accounting for 16.6%, 11.5%, 4.7% and 6,0%, respectively, of the total mass of PM2.5.

关键词： PM2.5 Water-soluble ions Organic carbon (OC) Elemental carbon (EC) Crustal matter

The Relationship between Major East Asian Countries and the Arctic Council

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国际展望 2010年第6期 23-45+125页

作者： li weifang and WU Di

In recent years,with the debate over rights in the Arctic regions among coastal and world’s major countries,the Arctic issue has rapidly become a hot spot of global *** East Asian countries should also give active responses towards this *** that the Arctic Council,as an intergovernmental organization consisting of eight Arctic countries,plays a significant leading role in Arctic affairs, by providing an overview of the work and developing trend of the Arctic Council, this paper analyzes the necessity and feasibility for East Asian countries(mainly referring to China,South Korea and Japan)of their participation in the Council and also proposes the suggestions on this basis to promote these countries’position and their role in Arctic affairs.

关键词： The Relationship between Major East Asian Countries and the Arctic Council

International code for ships operating in polar waters:challenges to polar shipping safety rules in China

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Advances in Polar Science 2016年第3期27卷 146-153页

作者： li weifang HUANG Yan East China University of Political Science and Law Shanghai 200042China

Abstract With the sea-ice diminishing steadily in the polar regions, there has been growing interest in new transit routes through polar waters using cost-effective transportation. Among the international regulators over polar shipping, the International Maritime Organization （IMO） is the leading body concerned with drafting marine safety and environmental protection rules. The mandatory Polar Code （International Code for Ships Operating in Polar Waters） adopted by the IMO signals the consensus among maritime states to apply compulsory rules to vessels operating in Arctic and Antarctic waters. As the standing member of the IMO and a major global shipping power, China is preparing to adopt national regulatory standards to develop an adequate vessel infrastructure and crew training system. Proceeding in parallel with the developing polar shipping industry, China will also move ahead in comprehensive collaboration with the Nordic states regarding polar issues.

关键词： polar shipping marine safety IMO Polar Code China the Nordic countries

The impact of land use change on quality evolution of soil genetic layers on the coastal plain of south Hangzhou Bay

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Journal of Geographical Sciences 2008年第4期18卷 469-482页

作者： li Jialin li weifang YANG Xiaoping ZHANG Dianfa TONG Yiqing Coastal Resources and Environment Research Center Ningbo University Ningbo 315211 China

Land use change plays an important part in the studies of global environmental change and regional sustainable development. The change of soil quality can particularly reflect the impacts of human socio-economic activities on environment. Taking the coastal plain of south Hangzhou Bay as a study case, we analyzed the effects of land use changes on organic matter （OM）, total nitrogen （TN）, total phosphorus （TP）, available phosphorus （AP）, available potassium （AK）, total salinity （TS）, pH value in soil genetic layers, and assessed soil quality change related to different land use types from 1982 to 2003. The results show that：（1） The general change tendency of soil quality in the coastal plain of south Hangzhou Bay declined obviously in A layer and slightly rise in B （or P） layer and C （or W） layer. The contents of TP decreased generally in all soil genetic layers, but the variety difference of other soil quality indices was relatively great. （2） The change of soil quality in the areas where land use changed is far more remarkable than that with land use unchanged. The value of quality variety is A layer 〉B （or P） layer 〉C （or W） layer. （3） The changes of soil tillage, cultivation, fertilization, irrigation and drainage activities related to land use may make some soil-forming processes disappeared and bring in other new processes which will affect the soil quality and soil genetic layers directly.

关键词： land use soil quality soil genetic layer coastal plain south Hangzhou Bay

The Influence of Johnson on liang Shiqiu’s Human Nature Theory of Shakespeare Criticism

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Comparative literature:East & West 2010年第2期 94-97页

作者： li weifang College of literature,Henan University

人性论是梁实秋评论莎士比亚的理论基石,他认为莎士比亚之所以永恒不朽,是因为他的作品表现了基本的具有普遍意义的人性。这一批评观深受18世纪英国著名批评家约翰逊的影响。这是我们探知梁实秋批评观形成的有据可查的一个重要来源。梁... 详细信息

人性论是梁实秋评论莎士比亚的理论基石,他认为莎士比亚之所以永恒不朽,是因为他的作品表现了基本的具有普遍意义的人性。这一批评观深受18世纪英国著名批评家约翰逊的影响。这是我们探知梁实秋批评观形成的有据可查的一个重要来源。梁实秋的莎士比亚人性论批评,是学理探究、寻找普遍价值的学术性批评。

关键词：莎士比亚梁实秋人性论批评观理论基石普遍意义永恒不朽基本的批评家约翰逊

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梁实秋莎评的人性论特征及其意义

外国文学研究 2011年第2期33卷 144-149页

作者：李伟昉河南大学文学院

人性论是梁实秋评论莎士比亚的理论基石,他认为莎士比亚所以永恒不朽,是因为他的作品表现了基本的具有普遍意义的人性。这一看法深受18世纪英国著名批评家约翰孙批评观的影响。梁实秋莎评人性论特征背后所彰显的,是一种学理探究、寻找... 详细信息

人性论是梁实秋评论莎士比亚的理论基石,他认为莎士比亚所以永恒不朽,是因为他的作品表现了基本的具有普遍意义的人性。这一看法深受18世纪英国著名批评家约翰孙批评观的影响。梁实秋莎评人性论特征背后所彰显的,是一种学理探究、寻找普遍价值的学术性批评。

关键词：梁实秋莎评人性论特征影响意义

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论朗松对比较文学影响研究的奠基性贡献——以《文学史方法》为中心

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外国文学研究 2016年第2期38卷 112-120页

作者：李伟昉河南大学比较文学与比较文化研究所

朗松对比较文学影响研究的基本框架和方法做出了建设性的学术勾画,隐含了后来被梵·第根总结出来的流传学、渊源学、媒介学研究的基本因素。他主张以历史方法研究文学史,历史地处理文学作品的来源和影响问题,具有明显的实证主义特征。... 详细信息

朗松对比较文学影响研究的基本框架和方法做出了建设性的学术勾画,隐含了后来被梵·第根总结出来的流传学、渊源学、媒介学研究的基本因素。他主张以历史方法研究文学史,历史地处理文学作品的来源和影响问题,具有明显的实证主义特征。他强调文学研究中的历史方法,却又意识到文学研究不同于历史研究;重视"特殊事实",又不忽略"感情色彩""美学意义"与"鉴赏趣味";关注影响,却反对把类似关系随意扩大为从属关系;既强调影响,又推崇独创。朗松的比较文学思想对于法国学派影响研究做出了奠基性的学术贡献,具有重要的借鉴价值和现实意义。

关键词：朗松文学史方法影响研究

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朱东润《莎氏乐府谈》价值论

外国文学研究 2019年第2期41卷 147-160页

作者：李伟昉河南大学比较文学与比较文化研究所

朱东润20世纪初在上海《太平洋》杂志发表的四篇《莎氏乐府谈》,是中国学界细腻贴近莎士比亚戏剧文本开展批评的开始。这四篇《莎氏乐府谈》洋洋洒洒两万余言,充分显示了作者对莎士比亚的专业认知,是现存篇幅最长、论述最细致、最早独... 详细信息

朱东润20世纪初在上海《太平洋》杂志发表的四篇《莎氏乐府谈》,是中国学界细腻贴近莎士比亚戏剧文本开展批评的开始。这四篇《莎氏乐府谈》洋洋洒洒两万余言,充分显示了作者对莎士比亚的专业认知,是现存篇幅最长、论述最细致、最早独立成章的完整的莎士比亚评论。其评论范围涉及到莎士比亚的简约生平、创作成就与不足、著作权、演员、戏剧布景等方面,既有对《罗密欧与朱丽叶》和《裘利斯·凯撒》等名剧精彩细腻的文本分析,又有自觉的中西文学比较层面的真知灼见,首次让当时读者对莎士比亚的基本面貌有了较之以往更具体、更详细的了解。朱东润是最早通过翻译引用莎士比亚戏剧原著进行莎评的莎学专家,他的评论注重艺术魅力的探讨,彰显了文本细读的可贵品格,又不失对作品思想价值内涵的揭示,体现出了客观务实、稳健执着的理性精神,对于读者以戏剧的形式管窥、认知莎士比亚具有重要价值,不仅标志着近现代中国学界从学术学理层面接受和研讨莎士比亚的开始,而且较早地探寻了文学创作不同体裁的差异特征与跨文化翻译接受规律,在中国莎士比亚接受史上具有开拓性和里程碑式的学术意义。

关键词：朱东润《莎氏乐府谈》文本细读比较意识价值