The building of virtual reality system for the opencast mine is a complicated and systemic project. The building process of virtual system includes data collection, GIS geodatabase, model designing and raster textures making. GIS data is from field survey, maps, and remote sensing images. The import phase is the building of kinds of models in different environment. This paper introduced several...

BACKGROUND The Global Programme to Eliminate Lymphatic Filariasis (GPELF) depends upon Mass Drug Administration (MDA) to interrupt transmission. Therefore, delimitation of transmission risk areas is an important step, and hence we attempted to define a geo-environmental risk model (GERM) for determining the areas of potential transmission of lymphatic filariasis. METHODS A range of geo-enviro...

In general, Geographical Information System (GIS) has four main components, namely data input, data model, data analysis and manipulation, and data presentation. These components are vital in order to make GIS fully functional. This paper is centred upon the research activities of selecting, synthesis, designing and implementing the data model components. The primary research issue is to develo...

Although Geographic Information Systems (GIS) have been recognised as the most advanced technology for the management of geospatial information, they are still unable to efficiently manage the temporal dimension. Originally this problem affected only the study and analysis of highly dynamic phenomena. Today’s expansion of GIS technology, the ease to acquire and store geospatial data and the inc...

GIS technology is more and more used even in the technical practice of a construction industry. In the preparatory phase of the construction, the problems of a spatial positioning (location) of the construction have to be solved jointly with the checking of the feasibility and purposefulness, the traffic projects are worked out, and the alternative, more detailed solutions of technical problems...

We tested two alternative models of integration among the cockroach giant interneurons (GIs) for determining the directions of wind-evoked escape turns. One model, called steering wheel, pits contralateral GIs against one another; the other, called population vector model, involves a vector computation among the GIs. In testing each model theoretically, the population vector was found to accoun...

Geographical Information Systems (GIS) are often used to assess and monitor the environmental impacts caused by mining activities. The aim of this work was to develop a new application to produce dynamic maps for monitoring the temperature variations in a self-burning coal waste pile, under a GIS open source environment—GIS-ECOAL (freely available). The performance of the application was evalua...

Assessment of soil erosion is expensive and intensively long exercise. A number of parametric models have been developed to forecast soil erosion at drainage basins, yet Universal Soil Loss Equation, popularly known as USLE model is most widely used empirical formula for estimating annual soil loss from agricultural basins. With the advance of Remote Sensing technique it becomes possible to mea...

In this study, a GIS-based tool has been developed to evaluate and predict coastal water quality issues for the Pearl River Estuary (PRE). The developed system consists of three key components. The first component is a database of hydrodynamic and water quality data collected from various public domains. This database is linked with the GIS for efficient retrieval, display, and analysis of hist...

Despite considerable research interest in the handling of uncertainty within GIS, the production of what has been described as an error sensitive GIS is still some way off. The increasing use of objectoriented (OO) technology presents a variety of opportunities, but also impediments to the implementation of such an error sensitive GIS. An important barrier stems from the lack of homogeneity wit...