浅谈新疆测震台网传输链路的改造

要做到IP到台站有很多种方式可选,根据新疆测震台网各台站的现状列举了7类不同的数据传输方式,这些数据传输方式在新疆测震台网中均得到应用,也都达到IP到台站的目的.分别对这些数据传输链路的原理及优缺点进行阐述,并结合目前各台站具体情况作链路适用性的相关分析,希望能够对其他省局台网的台站通信链路设计、改造起到参考.     

More than just access to fish: The pros and cons of fisher participation in a customary marine tenure (Padu) system under pressure

The Padu system of South Asia has received growing attention as an example of customary marine tenure that has survived despite rapid development and change throughout the region’s fisheries. This paper describes the Padu system as it functions at Pulicat lagoon, India, where it has enjoyed decades of legitimacy amongst its members, and has contributed to sustainable fishing. Recently, however, the Padu system has become unstable, driven by pressures of an expanding fishing population, reduced access to fishing grounds and a growing ‘shared poverty’. In spite of this, fisher loyalty to uphold the Padu system remains strong. This raises questions about the broader social, political and cultural meanings of Padu, which extend beyond access to a lucrative fishery. The paper highlights a trade-off between the benefits received through Padu membership at a societal level through collective action, and the individual costs of partaking in ‘shared poverty’, which is inherently distributed unequally amongst fishing families. The paper concludes with a discussion on the future of the Padu system in Pulicat, drawing from evolutionary pathways of other Padu systems in the region. It is suggested that, in the Pulicat case, the high social values attributed to the Padu system, alongside complex power structures, may hinder institutional adaptation.     

海量录井层序“砂地比”的自动计算

       在陆相层序地层研究中,多条录井地层“砂地比”的对比分析是判断物源方向、揭示沉积环境、辅助层序地层划分 及岩相古地理研究中的一项重要指标,为地学研究中最基本的方法。本文使用Access 数据库技术以层序为单位实现了海量 录井地层“砂地比”的快速计算,与传统的方法相比,提高了工作效率,增强了数据的准确性和可靠性。实践证明,该方 法是一种切实可行的科学计算方法,可以在地学研究中推广使用。     

Access to land reconsidered: The land grab,polycentric governance and Tanzania’s new wave land reform

Inspired by Ostrom’s concept of polycentric governance, this article aims to refine the analytical framework through which contemporary access to land is analysed. By drawing on extensive fieldwork and conducting a review of the existing literature on the making and implementation of Tanzania’s 1999 land reform, it challenges some of the main assumptions behind the land access and land grabbing literatures about the level at which agency is placed. Processes governing access to land are more contingent than they are most often depicted, involving actors at the local, national and international levels. National and local level actors are often more important than, in particular, the land grab literature tends to suggest. This implies that the state should be seen not merely as a site of ‘legitimate theft’, but also as one in which rights may be upheld. Based on the experience of Tanzania, the article suggests that analytical a priori assumptions about where agency is placed should be abandoned and replaced with empirical research into the relations between actors at all levels.     

基于Access的钻孔资料查询界面设计

矿山数据资料多,在勘查阶段设计后续钻孔工程时经常要查阅之前的钻孔资料。本文是在整理马来西亚吉兰丹州Ulusokor金矿区钻孔资料过程中用Access设计的一个简单查询界面,充分利用了Access用户友好的操作界面及其查询修改记录的强大功能,使得查询起来不再麻烦,既有利于资料整理,又有利于后续工程的布置。     

利用Access97编制科技论文登记及统计数据库

介绍利用Access97编制科技论文登记数据库的具体过程及使用方法。通过该数据库，可以及时将发表的科技论文入库。当论文全部入库后，可以方便地进行查询及统计，从而得出有效的数据，大大提高了工作效率。     

The determinants of primary health care utilization: a comparison of three rural clinics in Southern Honduras

Primary health care utilization is poorly understood in many parts of the developing world. This is especially true in rural places, such as Santa Lucia, Intibuca, Honduras, where there are only three primary health care facilities servicing almost 12,000 people, and generally speaking access to care is limited. This study examines the factors that can be used to explain primary health care utilization, and aims to improve the understanding of patient utilization behavior. A better understanding of utilization can be used by health service planners to improve primary health care delivery in this and similar locations. The findings of this research indicate that utilization can be explained, to a large extent, by factors relating to economic status and walking time to clinic. These findings are consistent with findings from prior research. In addition, a home territory variable is used to examine spatial variations of utilization behavior. This variable has not been considered in previous utilization research, and is found to be a very significant determinant of health facility utilization in the study area.     

动态分段思想在公路地理信息系统中的实现

动态分段是一种全新的线性特征的动态分析技术,可以有效地解决公路线性特征的动态分析问题,实现公路图形和属性数据间的双向动态可视化查询。文章以Arc/Info为代表,分析了动态分段技术的原理,结合VB6.0、MapObjects2.2和Access,初步介绍了公路GIS中动态分段的数据结构与算法,并探讨了如何实现公路GIS的过程。     

测氡数据软件的设计

在论述了测氡法的基本原理、工作方法及数据处理的基础上,针对测氡数据放射性衰变的特点和在实际工作中受干扰因素较多等原因,对实测数据进行分析、校正与处理.从实际应用出发,设计开发了可视化和集成化的测氡数据处理软件系统,便于对实测数据进行预处理、校正与成图.     

Rural food accessibility: An analysis of travel impedance and the risk of potential grocery closures

This paper examines the potential spatial impact of grocery store closures and their impact on the food accessibility of the population of one rural county in Southern Illinois. Additionally, we offer public health officials a simple method for locating populations at particular risk of food inaccessibility in the event of a grocery store closure. A model is introduced for weighting different types of food outlets based on the types of food products offered to potential customers. By using a weighted system for measuring different types of food outlets, individual addresses, and a novel method of visualizing food access, we find an improved means of locating areas of risk in a fluid food-access landscape.