نتایج جستجو برای: the grass geographic information system

تعداد نتایج: 16380864  

Journal: :Journal of the Korean Association of Geographic Information Studies 2011

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه بیرجند - دانشکده علوم 1391

in this thesis, we consider a mathematical model of cancer with completely unknown parameters. we study the stability of critical points which are biologically admissible. then we consider a control on the system and introduce situations at which solutions are attracted to critical points and so the cancer disease has auto healing. the lyapunov stability method is used for estimating the un...

2007
Christian Brodbeck John Fulton Joey Shaw Timothy McDonald Donn Rodekohr

The adoption of precision agriculture technologies and site-specific management has been limited in the forest industry. Geographic information systems (GIS) and remote sensed imagery have been used in forest management, but at a landscape scale, typically to prescribe and schedule treatments for a diverse collection of relatively large tracts. Individual stands have traditionally been treated ...

Journal: :Automation and Control in Technical Systems 2015

Journal: :Journal of Engineering Science 2021

The article examines the issue of using geographic information systems (GIS) and WEBGIS technologies to predict areas likely be flooded. Probabilistic flood hazard maps (0.5%, 0.1% 1% risks) were used, obtained from a model installation in an area subject risk, this case, municipality Ungheni Republic Moldova, which has been flooded past. application GIS is necessary prevent floods affecting ho...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی - دانشکده ادبیات و زبانهای خارجی 1390

monumental changes occurring on a daily basis have altered the world into a global village of expanding technology and shrinking geography in which preparing language learners for intercultural communication seems to be a sine qua non for modern language education. employing a cross-sectional design in its first phase, this study investigated the intercultural sensitivity and language proficien...

Journal: :International Journal of Computer Theory and Engineering 2014

Journal: :محیط زیست طبیعی 0
فریده عتابی استادیار دانشگاه آزاد اسلامی، واحد علوم و تحقیقات تهران، ایران یوسف رشیدی دکترای مهندسی شیمی، شرکت کنترل کیفیت هوا، شهرداری تهران، ایران علیرضا قراگوزلو استادیار دانشگاه آزاد اسلامی، واحد علوم و تحقیقات تهران، ایران آتنا عربی کارشناس ارشد مهندسی محیط زیست، واحد علوم و تحقیقات تهران، دانشگاه آزاد اسلامی، ایران

particulate and gaseous emissions of pollutants from industries and auto-exhausts are responsible for rising discomfort, aggravates respiratory and cardiovascular. in this study, a system for air quality information in tehran city has been developed, using an online web-based geographic information system. this web-based gis application allows users to recognize areas with a potential increase ...

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