长江中游城市群石化产业空间组织研究——现状、机制与路径

石化产业是关乎国民经济的重要产业,在当前我国大规模发展石化产业的背景下,有必要对其空间组织进行深入讨论。基于长江中游城市群石化产业空间组织的分布状况,利用空间聚类、线性回归等数学工具,从其影响机制、问题评价和发展路径等方面进行分析,对长江中游城市群石化产业空间组织进行研究。结果表明长江中游城市群石化产业的空间集中程度不高,发展水平较低,需要通过培育和壮大产业集群来促进生产要素合理布局,提升产业竞争力,加速城市群建设。     

Organizations: INMARSAT: improving maritime communications

Improving maritime communications is the raison d'être of INMARSAT, of which 40 countries are now members. INMARSAT operates the world's only commercial satellite system devoted to international mobile communications. This article describes the system and the services which can be provided through it, and covers the policy issues of interest to INMARSAT. It concludes by considering the future of maritime mobile communications via satellite.     

荷兰海洋区测的组织与管理

全面介绍了荷兰地调局的组织设置与荷兰海洋区测工作的管理，分别就区测项目的设计、区测工作的组织与实施、区测工作的质量控制以及区测成果的表达和用户管理等几个方面进行了阐述，总结了荷兰区测工作组织与管理的基本经验。     

Actors working the institutions in sustainability transitions: The case of Melbourne's stormwater management

The role of agency in overcoming path dependence and enabling sustainability transitions is receiving increasing attention. Currently lacking are more empirically derived explanations of the co-evolutionary dynamics between actors and institutional change that could potentially provide guidance on facilitating such transitions into the future. This paper investigates these dynamics through a longitudinal case analysis of Melbourne's transition to improved stormwater quality treatment. The complex data collection, analysis and validation approach, which included oral histories, semi-structured interviews, industry workshops and documentary analysis, examined the nuances of the actor-related strategies and institutional enabling processes throughout the different phases of the transition over the last fifty years. The results revealed the importance of a small group of loosely connected frontrunners from across government, private, community and scientific sectors who, through a mix of creating and disrupting institutional strategies, managed to facilitate a growing and diverse actor-network that steered this transition over decades. The establishment of networked bridging organisations was also instrumental because they formed different types of networks and alliances over time for protecting and deepening the reach of the transition dynamics across the city. The findings suggest there is no single cause–effect relationship nor one dominant intervention or action that shifted the urban stormwater management regime. Rather, it showed that the co-evolutionary processes between the broader transitional dynamics were played into by frontrunners and their actor-networks in such a way that emerging new narratives diffused, giving meaning to the evolving scientific agendas and on-the-ground experiments, which led to new institutional structures and enabling administrative tools. It seems as though each one of these dimensions is as crucial as the other in explaining the outcomes of this successful sustainability transition.     

基于过程时空数据模型的城市地籍信息组织方法

以文献①中提出的基于过程的面向对象时空数据模型(POOSDM)为理论基础,将其应用于城市地籍信息管理系统中,以验证该模型的实践可行性。POOSDM是从时空语义建模的角度反映空间对象的演变过程,以及在这个过程中产生的事件因果联系,并且通过过程语义和面向对象思想的结合解决了时空动态数据的组织、存储和查询问题。通过分析城市地籍信息的时空变化特点,研究以POOSDM为基础的地籍地理实体对象化描述过程、相关定义和对象构建方法,探索城市地籍综合信息的组织方法和演变过程,为城市地籍时空数据管理提供新思路。     

甘肃岷县某金矿钻探施工技术与管理

分析了复杂地层的成因,通过精心筹划、严密组织、技术攻关、研制冲洗液、有针对性地研制钻头、规范作业,解决了施工护壁难和取心难题,较好地提高了施工效率和钻孔施工质量。     

矿山地理信息系统（TT—MGIS^2000）图形数据组织研究

介绍了矿山地理信息系统（TT－MGIS^2000)图形数据组织方式－－图层分层管理。TT－MGIS^2000将图形数据分为地物类和专题两大类。地物类包括点，线，面，注记等，专题分为面状专题，地物类专题，网络专题，栅格专题，TIN专题等。     

数字地球网格计算雏议

数字地球将为人类提供关于我们地球的海量自然和人文数据与信息 ,是我们生活的行星的一个多分辨率 ,四维虚拟表达。网格计算被认为是解决数字地球问题的最好方法。数字地球问题的解决必须通过异构的计算资源 ,信息系统 ,设备 ,人之间的相互协作 ,而这些都是地理位置或组织结构分散的。本文介绍我们在生成用于解决数字地球问题的核心中间件的研究工作以及结果。因为网格计算本身是一门比较新的领域 ,网格计算与数字地球的有机结合将为数字地球提供一个全新的计算工具     

东北地区地域组织创新研究

目前，尚无对地域组织及其创新内涵的统一认识。作者认为，地域组织创新是一个地域制度创新的必然产物，也是我国地方经济发展的客观要求。本文在对地域组织创新的基本认识基础上，总结与评述了建国后东北地区地域组织的发展历程与创新形式，分析了东北地区在地域组织创新中存在的关键性问题与障碍因素，最后对东北地区地域组织创新的宏观背景与基本依据进行了探讨，提出了东北地区未来地域组织的创新方向与形式。     

Cavernous weathering,dynamical instability and self‐organization

Cavernous weathering may be conceptualized as a self‐reinforcing process, characterized by positive feedback within the weathering system. A morphometric study of caverns in the Valley of Fire State Park, Nevada, USA, demonstrates the applicability of a dynamically unstable, or conditionally unstable, model of cavernous weathering systems. Outcrop surfaces displaying caverns tend to show increasing fragmentation of the surface in the early stages of cavernous weathering, succeeded by convergent evolution of the surface in which caverns tend to grow and coalesce. A paradoxical relationship exists between the weathering system output at the scale of individual forms and the outcrop scale: caverns tend toward minimum interior surface area by developing a spheroidal form, yet the outcrop surface tends toward maximum exposed surface area by increasing the degree of fragmentation of the surface. Copyright © 2004 John Wiley & Sons, Ltd.