In an urban environment, the occlusion of satellite broadcasts varies across space and thus, preplanning for collection of GPS points requires consideration of these obstructions. This paper presents a GIS embedded model (ArcGIS and ArcObjects) for predicting GPS error via modeling PDOP in an urban environment. The "skyview" model predicted PDOP for spatial locations as a function of the percen...

* لوئسم هدنسيون : فيرـش نابايخ ،ناهفصا يوـك ،يـفقاو نب ،يناطلس نسحم ديهش حرف تسب كلاپ ،شخب 10 / 8 نفلت : 3168058 0913 email: [email protected] فده و هنيمز : ميزنآ نيرتمهم زا زانژيسكا ولكيس ميزنآ نيدنلاگاتسورپ زتنس ريسم ياه ا شياديپ و اه ندب رد باهتل تسا ناسنا . هزات رد رثا تاقيقحت نيرت ت رخ ي زانژيسكا ولكيس ميزنا زا يب 2 لولس رب هدش هديد ناسنا زغم يبصع ياه ب تسا ه يروط...

America’s 95,000 miles of coastline are subject to natural and man-made processes that continually alter its shape and character. The accuracy, consistency, and currency of our national shoreline need to be frequently ensured, especially during this era of rapid coastal development. Countless applications depend on NOAA’s National Spatial Reference System to determine where the land meets the s...

مداخل يعسوت رامعم ميمصت " ةجاحلا بسح ةددعتم طئاسو " ABSTRACT in this paper we develop a Vhdlbased scalable architecture of a multimedia on demand server model. Te three server subsystems are:the control subsystem, the communication subsystem and the storage subsystem are modeled. The communication subsystem is designed as an interconnection network with meshed-pipe structure and delivers packe...

A Geographic Information System (GIS) was used as analysis tool to study the spatial distribution of dengue virus-infected Aedes mosquitos in Thailand. Global Positioning System (GPS) instruments were used to map villages involved in dengue epidemiological studies in Ratchaburi Province, Thailand. Differentially processed GPS data, with a spatial resolution of approximately 1 meter, were incorp...

Seasonal variation in habitat selection by the mountain goat Oreamnos americanus is not well understood due to the difficulties of monitoring animal movement in all months of the year. The use of global positioning system (GPS) wildlife telemetry collars offers an opportunity to overcome this obstacle, however satellite acquisition problems associated with GPS wildlife telemetry collars create ...

The problem of proposed topology for network comes when using Prim’s algorithm with default distance (unrealistic distances) between network’s nodes and don’t care about the lakes, high hills, buildings, etc. This problem will cause incorrect estimations for cost (budget) of requirements like the media (optic fibre) and the number or type of Access-points, regenerator, Optic Amplifier, etc. Thi...

This study proposed a Context-Aware emergeNcy rEmedy system (CANE), based on the operations of a real hospital, to provide complete and convenient functions for emergency processes and medical consultants using mobile communication networks. The CANE system combines emergency medical services with GIS/GPS technology, mobile multimedia communications and context-aware controls. The CANE system l...

Today, incorrect use of lands and land use changes, excessive grazing, no suitable using of agricultural farms, plowing on steep slopes, road construct, building construct, mine excavation etc have been caused increasing of soil erosion and sediment yield. For erosion and sediment estimation one can use statistical and empirical methods. This needs to identify land unit map and the map of effec...