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南海中部海盆海山磁性反演及初步解析

海洋学报 2003年第2期25卷 57-66页

作者：金钟南京大学海岸与海岛开发教育部重点实验室

南海中部海盆分布着众多海山,从实测磁异常反演海山磁性是南海海盆古地磁研究新的重要课题,它有助于解决南海海盆的运动方向和运动形式等问题.对南海海盆16座海山作磁性反演取得了较高的计算精度.对南海中部海盆海山磁性反演表明,海山... 详细信息

南海中部海盆分布着众多海山,从实测磁异常反演海山磁性是南海海盆古地磁研究新的重要课题,它有助于解决南海海盆的运动方向和运动形式等问题.对南海海盆16座海山作磁性反演取得了较高的计算精度.对南海中部海盆海山磁性反演表明,海山均为非均匀磁化体,海山形成经过多期火山喷溢叠加.海山磁性差异清晰地显示了海盆分区特征.南海海盆分东部海盆区和西南部海盐区,海盆地壳运动规律差异较大:东部海盆以逆时针旋转由南往北运移;西南海盆先经历了顺时针旋转,后改为逆时针旋转,由北往南运移.

关键词：南海中部海盆海山磁性反演

A research ON URBAN RECREATIONISTS' TRAVELING BEHAVIORS IN SHANGHAI

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Journal of Geographical Sciences 1996年第1期6卷 26-35页

作者： Wu Bihu(Department of Tourism Studies, East china Normal University, Shanghai 200062People’s Republic of china) Department of Tourism Studies East China Normal University Shanghai 200062 China

Urban recreationists consist of those who have used urban recreational facilities, no matter they are local residents or nonlocals. Traveling models will exert impacts not only on the use of urban recreational facilities but also on the development and management of recreational resources. Taking Shanghai as a sample of destinaton and origin of urban recreationists, the author did his study based on data from comprehensive travel measurement and users' survey, including field questionnaire survey, mailing questionnaire survey, home survey, and cordon monitonng. To analyze traveing models of urban recreationists in Shanghai, the author used techniques of Recreational Activity Space (RAS) and the Use Curve (UC) Analysis. Rogarding Shanghai as an origin, the author first discussed types and characteristics of the RASs which are presented by isotourist lines in the proper and outskirts of Shanghai, the Yangtze Delta and the china's Mainland respectively. These RASs reflect the trave directional bias of Shanghainese. Then the author regarded Shanghai as a deshnahon and analyzed the RASs of tounsts from Otier provinces, which demonstrated the attractiveness of and distance decay of Shanghai. He found that a U-shaped UC model existed in the distance decay under the influence of attractiveness and distance. Finally, the author suggested, that the availability, periodicity and attractiveness, besides distance, are the basic mechanisms that affect the urban recreationists' traveling models in a city such as Shanghai.

关键词： Shanghai recreationist traveling behavior recreational activity space,use curve

Application of mesoscale modeling optimization to development of advanced materials

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Progress in Natural Science:Materials International 2004年第8期14卷 8-15页

作者： SONG Xiaoyan(School of Materials Science and Engineering, Beijing University of Technology, Beijing 100022, china) Beijing Univ Technol Sch Mat Sci & Engn Beijing 100022 Peoples R China

The rapid development of computer modeling in recent years offers opportunities for materials preparation in a more economic and efficient way. In the present paper, a practicable route for research and development of advanced materials by applying the visual and quantitative modeling technique on the mesoscale is introduced. A 3. simulation model is developed to describe the microstructure evolution during the whole process of deformation, recrystallization and grain growth in a material containing particles. In the light of simulation optimization, the long-term stabilized fine grain structures ideal for high-temperature applications are designed and produced. In addition, the feasibility, reliability and prospects of material development based on mesoscale modeling are discussed.

关键词： mesoscale computer simulation Monte Carlo technique deformation recrystallization grain growth.

Payment for Environmental Services:The Sloping Land Conversion Program in Ningxia Autonomous Region of china

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china & World Economy 2008年第2期16卷 66-81页

作者： Lei Zhang Qin Tu Arthur P. J. Mol Assistant Professor Environmental Policy Group Wageningen University Wageningen the Netherlands Associate research Fellow Institute of World Economics and Politics Chinese Academy of Social Sciences Beijing China and Development Economics Group Wageningen University Wageningen the Netherlands Professor Environmental Policy Group Wageningen University Wageningen the Netherlands

china＇s Sloping Land Conversion Program has been implemented since 2002. It aims to achieve goals of ecological recovery and poverty alleviation, by retiring steeply sloping land from crop production and freeing surplus agricultural labor for off-farm activities. Given the huge investment that has been poured into it, and its ecological and social impacts, this government-initiated program has attracted significant academic attention and triggered a flood of debate. Since 2004, the debate has concentrated on the sustainability of the program. Although targets have been overachieved in some provinces, concern has still emerged regarding the livelihood of farmers after subsidies stop. The present paper analyzes the implementation of the Sloping Land Conversion Program in Ningxia Autonomous Region, with a focus on the required social capital for sustained participation o f farmers and the development of off-farm economic activities.

关键词： china Sloping Land Conversion Program social capital sustainability

An optimization approach to the similarity criteria of flows and its application

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Progress in Natural Science:Materials International 2006年第3期16卷 241-247页

作者： ZHOU Jifu and LI Jiachun (Institute of Mechanics, Chinese Academy of Sciences, Beijing 100080, china) [a]Institute of Mechanics Chinese Academy of Science Beijing China

In the present paper, we propose an optimization approach to investigate the similarity criteria of complex flows. With this approach, we may identify the dominant dimensionless variables governing complex flows by numerical sensitivity analysis. Firstly, we define the sensitivity factor and examine its dependence on the dimensionless variables. Then, we apply this approach to study the similarity criteria of porous media flow in a presumed oil reservoir. The similarity principle obtained from the numerical sensitivity analysis is in agreement with the theoretical law, thus demonstrating the feasibility of the proposed optimization approach. Further explanation is given by analyzing the deviation of pressure distribution in a model from its prototype. In addition, we examine the effects of flow parameter variation on the sensitivity factors and find that the dominant dimensionless variables may change from different sets of parameters.

关键词： similarity optimization sensitivity analysis complex flows model.

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文东地区沙河街组油源对比与注入史研究

西南石油大学学报（自然科学版） 2010年第2期32卷 31-34,195-196页

作者：张庆峰潘中亮罗小平常振恒 "油气藏地质及开发工程"国家重点实验室.成都理工大学四川成都610059 中国石化中原油田分公司勘探开发科学研究院河南濮阳457001

运用地球化学研究手段,对文东地区沙二和沙三段原油、油砂和泥岩进行了饱和烃气相色谱-质谱分析,认为沙二和沙三段原油来自沙三段烃源岩;通过对研究区储层流体包裹体的分析,结合原油构造演化资料,对沙二和沙三段油藏的成藏时期进行了分... 详细信息

运用地球化学研究手段,对文东地区沙二和沙三段原油、油砂和泥岩进行了饱和烃气相色谱-质谱分析,认为沙二和沙三段原油来自沙三段烃源岩;通过对研究区储层流体包裹体的分析,结合原油构造演化资料,对沙二和沙三段油藏的成藏时期进行了分析。沙二段油气藏主要成藏期为东营中后期及抬升剥蚀期,主成藏期为3.～17Ma;沙三段为两期油气充注,第一期为在东营初期(距今3.～23.a),为主成藏期;第二期发生在明化镇期(距今10～0Ma)之后。对文东地区成藏模式进行了分析,把文东地区油藏分为近洼原生型、油源断层控制的调整型和浅层次生型3.。

关键词：文东地区盐湖相地球化学特征流体包裹体油气成藏期

公共关系视野中的“社会责任”研究——对美、台、中三地期刊的分析和比较

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国际新闻界 2010年第8期32卷 28-34页

作者：薛可陈晞余明阳上海交通大学媒体与设计学院上海交通大学安泰经济与管理学院

'社会责任'是公共关系研究中的一个重要议题。从某种意义上来说,公共关系正是在对企业'社会责任'的认识和实践过程中发展起来的。本文通过对美、台、中三地共六本公关及传播学等相关学术期刊中所刊登的有关'社会责任'的论文进行内容分析... 详细信息

'社会责任'是公共关系研究中的一个重要议题。从某种意义上来说,公共关系正是在对企业'社会责任'的认识和实践过程中发展起来的。本文通过对美、台、中三地共六本公关及传播学等相关学术期刊中所刊登的有关'社会责任'的论文进行内容分析,通过比较研究来回顾三地公关学术界在'社会责任'研究上的发展状况,并探讨其中所存在的差异和问题。

关键词：公共关系社会责任期刊

论农村政策基础研究——对当前中国农村研究的反思及建议

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学习与探索 2004年第5期 23-27页

作者：贺雪峰华中师范大学中国农村问题研究中心湖北武汉430079

当前以实证材料为基础的中国农村研究,主要是以与西方对话为特点的农村学术研究和以总结推广农村实践经验为特点的农村政策研究。这两类研究的共同弱点是,缺乏对中国农村社会状况尤其是其非均衡状况的关注。通过研究农村政策在农村实践... 详细信息

当前以实证材料为基础的中国农村研究,主要是以与西方对话为特点的农村学术研究和以总结推广农村实践经验为特点的农村政策研究。这两类研究的共同弱点是,缺乏对中国农村社会状况尤其是其非均衡状况的关注。通过研究农村政策在农村实践的具体机制及后果,以理解中国农村非均衡的内部结构,从而将抽象的中国农村具体化,可以构成农村政策基础研究,从而为农村政策研究提供理论资源。

关键词：中国农村政策基础研究村庄政治社会现象区域研究农村非均衡状况

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农村建设用地制度改革研究

上海财经大学学报（哲学社会科学版） 2010年第2期12卷 33-40,48页

作者：高富平华东政法大学民法研究中心上海200042

新一轮农村土地改革包括促进土地承包经营权流转和农村建设用地市场化两项内容,但建设用地制度改革显然是结束城乡二元发展模式、实现城乡一体化发展的关键,是整个农村土地制度改革的核心。农村建设用地制度改革的基本内容和目标是同地... 详细信息

新一轮农村土地改革包括促进土地承包经营权流转和农村建设用地市场化两项内容,但建设用地制度改革显然是结束城乡二元发展模式、实现城乡一体化发展的关键,是整个农村土地制度改革的核心。农村建设用地制度改革的基本内容和目标是同地同权,即:使农村建设用地去身份、市场化,最终使农村建设用地与城市建设用地具有相同的性质和流通能力,实现城乡建设用地市场并轨。要实现这一目标,必须赋予农民集体土地开发权,引导农村走自主城市化的道路。

关键词：农村土地改革农村建设用地城乡一体化