Now showing items 1-4 of 4
Land use and Opportunities for Crime: Using GIS as an Analysis Tool
(Virginia Tech, 2001-05-22)
It is important to identify the link between land use and opportunities for crime in order to create safer living environments in cities. Changes in land use change urban form and this leads to changes in the routine ...
U/Pb Zircon Ages of Plutons from the Central Appalachians and GIS-Based Assessment of Plutons with Comments on Their Regional Tectonic Significance
(Virginia Tech, 2001-09-28)
The rocks of the Appalachian orogen are world-class examples of collisional and extensional tectonics, where multiple episodes of mountain building and rifting from the pre-Cambrian to the present are preserved in the ...
The Validity of Using a Geographic Information System's Viewshed Function as a Predictor for the Reception of Line-of-Sight Radio Waves
(Virginia Tech, 2001-08-31)
A Geographic Information System (GIS) viewshed is the result of a function that determines, given a terrain model, which areas on a map can be seen from a given point(s), line or area. In the communications industry, this ...
RF and GIS: Field Strength Prediction for Frequencies between 900 MHz and 28 GHz
(Virginia Tech, 2001-08-15)
This thesis presents a model to predict signal strength for frequencies between 902 MHz and 28 GHz. The model approximates diffraction using the knife-edge concept and equations proposed by Lee (1985). LOS pathways are ...