نتایج جستجو برای: gis دریافت مقاله

تعداد نتایج: 174783  

2013
Kheir Al-Kodmany

This paper provides detailed examinations on the use of GIS in nonprofit organizations. We interviewed planners and GIS experts in key nonprofit organizations in the City of Chicago to comprehend their actual usages of GIS, faced challenges, and accumulated experiences. Organizations reported on dozens of projects where GIS was used for practical urban planning applications. Findings indicate t...

1998
Gert van Maren Rick Germs Frederik Jansen

Virtual reality is becoming a popular tool to visualize 3D GIS data. Direct interaction with the GIS data, however, is often limited. In this paper, we present a multi-view approach to support 3D GIS interaction within VR-environments. This approach is implemented in the Karma VI system, using existing GIS and VR technology. We describe the multi-view approach, the system components and the int...

Journal: :Journal of the Visualization Society of Japan 2003

2016
Meghan Cope Sarah Elwood

“Qualitative GIS – isn’t that kind of an oxymoron?” This comment from a colleague with years of experience working with GIS echoes the title of an editorial from an edition of Environment and Planning dedicated to the topic (Kwan and Knigge: 2006), and voices lingering concerns about the limitations of GIS. Qualitative GIS: A Mixed Methods Approach serves as an invitation to scholars in fields ...

ژورنال: :علوم تغذیه و صنایع غذایی ایران 0
یاسمن جمشیدی نائینی y jamshidi naeini faculty of nutrition sciences and food technology, shahid beheshti university of medical sciencesدانشکده علوم تغذیه و صنایع غذایی، دانشگاه علوم پزشکی و خدمات بهداشتی درمانی شهید بهشتی محمداسماعیل اکبری me akbari national nutrition and food technology research institute, faculty of nutrition sciences and food technology, shahid beheshti university of medical sciencesانستیتو تحقیقات تغذیه ای و صنایع غذایی کشور، دانشکده علوم تغذیه و صنایع غذایی، دانشگاه علوم پزشکی شهید بهشتی مرتضی عبداللهی m abdollahi national nutrition and food technology research institute, faculty of nutrition sciences and food technology, shahid beheshti university of medical sciencesانستیتو تحقیقات تغذیه ای و صنایع غذایی کشور، دانشکده علوم تغذیه و صنایع غذایی، دانشگاه علوم پزشکی شهید بهشتی مرجان عجمی m ajami cancer research institute, shahid beheshti university of medical sciencesمرکز تحقیقات سرطان، دانشگاه علوم پزشکی شهید بهشتی حسین داوودی h davoodi national nutrition and food technology research institute, faculty of nutrition sciences and food technology, shahid beheshti university of medical sciencesانستیتو تحقیقات تغذیه ای و صنایع غذایی کشور، دانشکده علوم تغذیه و صنایع غذایی، دانشگاه علوم پزشکی شهید بهشتی

سابقه و هدف: نتایج مطالعات حاکی از احتمال نقش محافظتی ویتامین d در برابر سرطان پستان می باشند. این مطالعه جهت ارزیابی ارتباط دریافت ویتامین d و ابتلا به سرطان پستان در زنان ایرانی انجام شد. مواد و روشها: در مجموع 135 مورد جدید سرطان پستان در مرکز جامع کنترل سرطان با 135 شاهد همسان شدند. اطلاعات عوامل خطر سرطان پستان، مواجهه با آفتاب و مصرف مکمل ویتامین d از طریق تکمیل پرسشنامه عمومی به دست آمد....

2007
Christine E. Dunn

Recent years have witnessed a burgeoning of applications of GIS which grant legitimacy to indigenous geographical knowledge as well as to ‘offi cial’ spatial data. By incorporating various forms of community participation these newer framings of Geographical Information Systems as ‘Participatory GIS’ (PGIS) offer a response to the critiques of GIS which were prevalent in the 1990s. This paper r...

2005
Hongyou Liang Shengwu Hu Chaofei Qiao

The fuzziness-based uncertainty of GIS products is studied from objective and subjective aspects respectively in this paper. From the point of view of objective aspect, the fuzziness-based uncertainty of GIS products consists of items concerning the data sources of GIS products. From the point of view of subjective aspect, the fuzziness-based uncertainty of GIS products includes human’s apprais...

2005
Eileen M. Trauth Hongmei Wang Rui Wang

Most current natural language based Geographical Information Systems (GIS) still interact with the user with the “question-answer” model. They do not support users effectively because the communication between the user and the system is easy to be broken down due to the ambiguity nature of the natural language. The collaborative interaction model was proposed for GIS so that GIS could simulate ...

Journal: :Library Trends 2006
Kim M. Ricker

The implementation and development of effective mentoring is crucial to the growth and success of Geographic Information Systems (GIS) librarianship and staffi ng. Mentoring is necessary to fi ll the gaps for all staff members, especially students. I propose that mentoring can assuage many of the staffi ng obstacles to successful GIS programs. Effective mentoring will create a healthy and produ...

Journal: :Trans. GIS 2003
Vincent B. Robinson

The development of fuzzy sets in geographic information systems (GIS) arose out of the need to handle uncertainty and the ability of soft computing technology to support fuzzy information processing. An overview of the fundamentals of fuzzy sets is used to illustrate its use in GIS. The use of some terms within both the GIS and fuzzy information processing community is clarified. Since one of t...

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