نتایج جستجو برای: سیستم اطلاعات جغرافیایى gis geography information system

تعداد نتایج: 3232971  

2003
Mathew Weaver Lois M. L. Delcambre Leonard D. Shapiro Jason Brewster Afrem Gutema Timothy Tolle

A digital library typically includes a set of keywords (or subject terms) for each document in its collection(s). For some applications, including natural resource management, geographic location (e.g., the place of a study or a project) is very important. The metadata for such documents needs to indicate the location(s) associated with a document and users need to be able to search for documen...

2005
David J. Unwin

The increasingly widespread use of Geographical Information Systems (GISystems, widely known as GIS) has meant that a version of ‘geography’ has been exported to many other disciplines and walks of life where this technology has been found to be useful. As an undergraduate, one of us read Applied Geography by Dudley Stamp (Stamp, 1960). It is full of ideas and examples of the applications of ge...

2002
Mei-Po Kwan Jiyeong Lee Michael F. Goodchild Donald G. Janelle

The study of human activities and movements in space and time has long been an important research area in social science. One of the earliest spatially integrated perspective for the analysis of human activities patterns and movement in space-time is time-geography. Despite the usefulness of time-geography, there are very few studies that actually implemented its constructs because of a lack of...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز 1387

چکیده ندارد.

Journal: :Annals of the Association of American Geographers. Association of American Geographers 2013
Douglas B Richardson

Space-time integration has long been the topic of study and speculation in geography. However, in recent years an entirely new form of space-time integration has become possible in GIS and GIScience: real-time space-time integration and interaction. While real-time spatiotemporal data is now being generated almost ubiquitously, and its applications in research and commerce are widespread and ra...

2003
Harvey J. Miller Elizabeth A. Wentz

A common—perhaps modal—representation of geography in spatial analysis and geographic information systems is native (unexamined) objects interacting based on simple distance and connectivity relationships within an empty Euclidean space. This is only one possibility among a large set of geographic representations that can support quantitative analysis. Through the vehicle of GIS, many researche...

Journal: :health scope 0
hassan mohammadpour department of occupational hygiene engineering, collage of health, shahid beheshti university of medical sciences, tehran, ir iran seyyed ali moussavi najarkola department of occupational hygiene engineering, collage of health, shahid beheshti university of medical sciences, tehran, ir iran; department of occupational hygiene engineering, collage of health, shahid beheshti university of medical sciences, p. o. box: 19835-35511, tehran, ir iran. tel: +98-2122432040-41, fax: +98-2122432037 mahdi jalali department of occupational hygiene engineering, hamadan university of medical sciences, hamedan, ir iran amin hosseini asl department of surveying engineering, faculty of civil engineering, toosi university of technology, tehran, ir iran alireza rahmati department of occupational hygiene engineering, collage of health, shahid beheshti university of medical sciences, tehran, ir iran

background in many industries, noise is attributed as the most prevalent harmful agent threatening workers' health. geographic information system (gis) is an applicable surveying tool in civil engineering. but, the use of gis for noise and hearing loss screening seems to be partly a new approach. objectives this study aimed to apply gis in noise and hearing loss screening in the production hall...

2009
Barbara Hofer Andrew U. Frank

Processes are central for geographic information science; yet geographic information systems (GIS) lack capabilities to represent process related information. A prerequisite to including processes in GIS software is a general method to describe geographic processes independently of application disciplines. This paper presents such a method, namely a process description language. The vocabulary ...

Journal: :Computers, Environment and Urban Systems 2003
Harvey J. Miller

Geographic information systems (GIS) are convenient and potentially powerful platforms for transportation and urban analysis. Most GIS-based tools for transportation and urban analysis continue a place-based representation that is increasingly ill-suited to answer important questions in theory, policy and practice. The increasing disconnection between people and places means that a people-based...

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