نتایج جستجو برای: the geo

تعداد نتایج: 16054955  

Journal: :Computers & Geosciences 2011
Martin Breunig Sisi Zlatanova

3D geo-database research is a promising field to support challenging applications such as 3D urban planning, environmental monitoring, infrastructure management, and early warning or disaster management and response. In these fields, interdisciplinary research in GIScience and related fields is needed to support the modelling, analysis, management, and integration of large geo-referenced data s...

2017
Shufang Wang Yuejing Ge Yuli Liu Xiao Xue

In the last 30 years, China’s economic power has experienced great changes and has brought about a profound impact on the world economy. This led us to ask a question: do changes in China’s economic power shift the geo-economic relationships between China and its neighboring countries? To answer this question, we researched the evolution of geo-economic relationships between China and the Assoc...

2005
Richard Onchaga

Geographic information services (geo-services) are gaining popularity as an efficient and costeffective framework for integrating geo-information systems, within and between enterprises, to enhance enterprise business processes. Geo-services can be chained dynamically to create customised geo-information and value-added services and therefore offer a business opportunity for disparate partners ...

2005
Yang Kun Wang Jun Peng Shuang-yun

From the perspective of spatial information sharing and interoperation, the concept of geo-ontology has been proposed in this paper. At first, a brief introduction to the Geo-Ontology concept has been described and the hierarchical structure of geo-ontology has also been analyzed. Then, the traditional method of ontology construction has been discussed and the existing problems have also been s...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی - دانشکده اقتصاد 1393

در این پایان نامه به مدل صف ‎geo/geo/1 ‎با تعطیلی چندگانه ی همراه با کار‏ و سرویس گروهی می پردازیم. نخست‏، در فصل اول کلیات و مفاهیم پایه بیان می شوند. سپس‏، این مدل صف‏ در فصل دوم با فرض ورودهای اول وقت و در فصل سوم با فرض ورودهای با تاخیر تحلیل می شود. هدف از این تحلیل‏، یافتن احتمال های اندازه ی سامانه‏، میانگین طول صف و میانگین زمان انتظار در صف است. در فصل چهارم‏، با بیان دو مثال عددی تا...

Journal: :TATuP - Zeitschrift für Technikfolgenabschätzung in Theorie und Praxis 2009

Journal: :Nature 1994

2014
Beatrice Alex Kate Byrne Claire Grover Richard Tobin

In this paper we present the Edinburgh Geo-annotator, a web-based annotation tool for the manual geo-resolution of location mentions in text using a gazetteer. The annotation tool has an interlinked text and map interface which lets annotators pick correct candidates within the gazetteer more easily. The geo-annotator can be used to correct the output of a geoparser or to create gold standard g...

Journal: :iranian journal of toxicology 0
maryam mohammadi roozbahani department of the environment, ahvaz branch, islamic azad university, ahvaz, iran soheil sobhan ardakani department of the environment, hamedan branch, islamic azad university, hamedan, iran hoda karimi msc graduated in environmental sciences, young researchers & elite club, ahvaz branch, islamic azad university, ahvaz, iran rezvan sorooshnia msc graduated in environmental sciences, young researchers & elite club, ahvaz branch, islamic azad university, ahvaz, iran

background: soil serves as a major reservoir for contaminants as it can bind to various chemicals. the aim of this study was to evaluate the levels of some metals (cd, cu, fe and v) in soil samples collected from different stations of ahvaz industrial complex ii to determine the natural and anthropogenic contribution of metal in the soil. methods: this was an experimental study that carried out...

Journal: :iranian journal of environmental sciences 0
gurumoorthi k faculty of marine sciences, annamalai university, parangipettai - 608 502, india venkatachalapathy r department of physics, annamalai university, annamalai nagar - 608 002, india

the concentration of selected trace metals (fe, cd, cu, pb, and zn) in 30surface sediments were measured using atomic absorption spectrometer to investigatethe spatial and seasonal variations of trace metals along kanyakumari coast, india. toassess the environmental risk of trace metals, enrichment factor, geo-accumulation index,pollution load index, and ecological risk index have been calculat...

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