首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 281 毫秒
1.
基因库(GenBank)的电子邮件检索   总被引:3,自引:0,他引:3  
基因库(GenBank)是由美国国立卫生研究院、美国国立医学图书馆以及美国国家生物技术信息中心建立发行的,所有已知核酸和蛋白质序列及其文献和生物学注释的公共数据库。可以通过WWW、FTP、E—mail获取其中的数据,本文主要介绍了查询服务器的检索方法。  相似文献   

2.
天气预报和人们生活关系密切 ,日益成为人们关注的焦点之一。国内大多数报纸只发布简单的天气信息 ,少数报纸如《北京青年报》和《京华时报》等已开始注重天气报道。像《纽约时报》等国外报纸的天气报道由来已久 ,且比较成熟。通过对比不难看出 ,国内报纸的天气报道有值得称道之处 ,但尚有不足 ,须取人之长补己之短 ,本文提出一些改进之道。  相似文献   

3.
Geographic information sources have evolved at the same rate as the many other information sources in the last half a century. This article discusses geographic literacy and spatial thinking, and the questions that derive from geographic inquiry. Librarians in academic libraries are most often called on to meet the complex specialized geographic information needs that arise from study and practice in those areas. The sources we use and the ways we respond to these needs have evolved and expanded with the advent of various digital technologies. In order to be able to work with these new technologies, librarians can develop specialized competencies in geographic information systems (GIS) which allow them to go beyond print maps and atlases in the provision of geographic information.  相似文献   

4.
ABSTRACT

The recently established Center for Fire Research and Outreach at the University of California, Berkeley has developed a web-based toolkit, the Fire Information Engine Toolkit (FIET), for wildfire-related needs. The FIET is intended to meet the needs of diverse user groups (homeowners, decision-makers, including fire operations, and researchers) at a variety of scales (local, community, and regional levels) before, during, and after wildfires. During the initial phase of the FIET, we have focused on developing pre-fire tools for homeowners and decision-makers at the local and community levels. For example, we have developed a science-based, parcel-level structure vulnerability assessment and ranking approach that will help homeowners and communities to identify hazards and prioritize planning and mitigation activities. A version of this assessment can be completed anonymously by homeowners interested in decreasing their vulnerability to wildfire, and a similar version can be downloaded and used by decision-makers on a community-wide level. In addition, we have developed a number of innovative web-based Geographic Information System (webGIS) applications including an interface to display results of the structure vulnerability assessment at a community level, as well as search-by-address maps of California's wildland-urban interface (WUI), fire threat, fire recurrence, and upcoming changes to building codes. In collaboration with researchers at Lawrence Livermore National Laboratory, the next phases of the FIET development will concentrate on enhancing the available tools, including incorporating real-time weather into fire behavior modeling and tools for evacuation modeling of natural disasters.  相似文献   

5.
SUMMARY

Since 2000, researchers and staff at the University of Washington have been developing a unified Geographic Information Systems database of Russian Federation socioeconomic, demographic, and political information at the raion and city (gorsovet) level. The Central Eurasian Interactive Atlas (CEIA) that has grown from this effort serves both to archive and to provide access to annual progressions of standardized geographic and tabular data covering the entire Russian Federation at a level of geographic detail not readily available elsewhere. As the CEIA grows, it will serve as a curricular and research focus of the UW's Russian, East European, and Central Asian Studies program.  相似文献   

6.
"The U.S. Bureau of the Census created the State Data Center program in 1978 to improve public access to census information. This article discusses the background, structure, and services of that program; the role of libraries in the program; and future directions in State Data Center/library relationships. The appendix lists contact person names, as well as addresses and telephone numbers for State Data Center lead agencies."  相似文献   

7.
Federal information policies, in general, have recognized the importance of open access to the digital data holdings of the government. Such policies have been supported by the Clinton administration's investment in a National Information Infrastructure. Recently, reports by the National Academy of Sciences and by the Vice President's National Performance Review have endorsed the creation of a National Spatial Data Infrastructure that will provide the spatial framework for the geographic data on the information superhighway. The success of such an enterprise will require the development of a suite of spatial data standards and policy tools. Existing standards, development activities, and mechanisms are described. Some of the policy challenges are unique to spatial data.  相似文献   

8.
"The U.S. Bureau of the Census has published on CD-ROM format data for the smallest geographic reporting levels....Providing access to the maps that define the reporting areas used by the Bureau within a county is one aspect of service that is unique to census files STF1A, STF1B, and STF3A. The paper illustrates the way these reporting levels are defined in the Tract/BNA Maps and Block Maps. The steps taken by one library to develop a link between a geographic area of interest to a patron and the areas defined on these maps are described. These steps include preserving and housing the maps in a way that makes them easy to use and preparing an index to the information contained on the maps using dBASE registered trademark software and information taken from STF1A using Extract software."  相似文献   

9.
介绍广州大学图书馆与广州市人民政府政务管理办公室、广州市档案局合作共建广州市政务服务资讯厅的概况,总结高校图书馆在政务资讯厅开展信息社会化服务的实践经验,探讨拓展资讯厅信息服务功能的努力方向。  相似文献   

10.
Since its first Code of Practice was published in 2003, setting the first international standard for reporting usage of scholarly content, Counting Online Usage of Networked Electronic Resources (COUNTER) has been continually refining the code of practice to meet the evolving needs of its library, publisher, and vendor membership. The latest release of the Code of Practice went into effect in early 2014 and introduced several improvements over the prior releases. Work is now underway on Release 5 of the COUNTER Code of Practice with a promise that it will provide further improvements to better report on usage of scholarly information in an ever-changing discovery and access environment. This column discusses current challenges and how Release 5 might address them.  相似文献   

11.
A case is made for the desirability of a national alcohol information network. The information activities carried on by both the National Clearinghouse for Alcohol Information (NCALI) and the Rutgers Center of Alcohol Studies (RCAS) are described. The establishment of a cooperative information-sharing arrangement between these two centers, and its subsequent discontinuation due to federal budget cuts, is recounted. The current prospects for improved information services to alcohol professionals is reviewed.  相似文献   

12.
期刊信息资源共享和开发利用的实现途径   总被引:4,自引:0,他引:4  
旨在探讨期刊信息资源共享和开发利用的实现途径, 认为建立期刊联合目录数据库, 并将WWW 技术与数据库技术紧密结合, 开发基于W eb 平台的期刊数据库应用系统, 则是在更大范围内实现期刊资源共知、共享、开发利用的基础和行之有效的途径。中国科学院文献情报中心牵头研建的“全国中西日俄文期刊联合目录数据库”正是这样的W eb 平台期刊数据库应用系统, 本文简要阐述了该数据库的概况、网络服务系统的功能特点、服务对象和方式及其进一步扩展的服务功能。  相似文献   

13.
Abstract

“To make significant contributions at appropriate points in the research process, information specialists must be positioned for proactive service to their users” (Von Seggem p. 101). At the National Center for Manufacturing Sciences Manufacturing Information Resource Center, information specialists are part of their customer' s team and contribute valuable expertise, information, and skills. The synergy of this relationship will be illustrated by describing three projects where these knowledge workers collaborated with their customers. From this experience, these information professionals share recommendations for fostering the customer librarian partnership. In conclusion, the synergistic practices described are related to literature on the topic of librarian customer teamwork.  相似文献   

14.
15.
将2005年以来本体在语义检索、信息系统、知识管理知识发现、机器翻译、医学生物学以及地理信息系统等领域的应用现状进行了总结分析;在对本体应用领域揭示的基础上,对今后的发展趋势进行了展望。  相似文献   

16.
ABSTRACT

A data warehouse, developed for United States Department of Energy/National Nuclear Security Administration (USDOE/NNSA) Pantex Plant in a multi-department collaboration, brings data from disparate datasets and spatial information about the site together into a single database accessible through an intranet web page or ArcGIS software. The web page directs queries of buildings, facilities, and areas through a Geographic Information System (GIS) viewer that displays spatial site information and chemical hazards data. The Spatial Database Engine (ArcSDE) provides the vehicle for linking mainframe datasets, downloaded daily, to current spatial information about buildings and facilities that store chemicals of potential concern to firefighters and other emergency responders. The system is available to the plant's shift supervisors and individual GIS users throughout the department.  相似文献   

17.
ABSTRACT

Emergency response to an atmospheric release of chemical or radiological contamination is enhanced when plume predictions, field measurements, and real-time weather information are integrated into a geospatial framework. The Weather Information and Display (WIND) System at Savannah River National Laboratory (SRNL) utilizes such an integrated framework. The rapid availability of predictions from a suite of atmospheric transport models within this geospatial framework has proven to be of great value to decision makers during an emergency involving an atmospheric contaminant release.  相似文献   

18.
The Internet has changed the way that people look for and obtain statistical information. The Internet will be the primary means by which the Census Bureau releases Census 2000 data, making more data available to the public than ever before. But information also will be available in other media such as print and CD-ROM.  相似文献   

19.
With the current economic situation, and the latest advancements in information technology, the information profession is faced with the need to continuously redefine the library as a concept and as a physical environment. Current trends increasingly appear to define the library as a provider of information. This article describes the argument for resource sharing with its different attributes as it appears in the literature, as well as its validity in the case of Kuwait. Two main research collections in Kuwait that constitute the basis for the information infrastructure of the country are used as examples. These collections are the Kuwait University Libraries, and the National Scientific and Technical Information Center, “NISTIC”. A profile of the two collections including their coverage, trends in budget, and service are used to justify the viability of resource sharing among two leading institutions in Kuwait.  相似文献   

20.
期待翻译软件的新突破   总被引:3,自引:0,他引:3  
因特网已渗透到人们的衣食住行及社会生活各个方面, 虽然网络没有国界, 信息不分种族, 但80% 的网站和90% 的网络信息是英文的, 多数国人与世界交流受到语障制约。国家科委早已将机器翻译列入“863”计划, 近年来翻译软件成果累累, 只是这些成果与人们的要求尚有较大距离, 此项研究仍然任重道远。  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号