The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The research of 3D geological modeling and visualization is a huge and complicated system engineering. Through the analysis, induction and abstraction about the spatial geological data, we establish a space class library of GeoSIS, in which the objects related to 3D modeling are systematically classified based on the OOP and COP. The functions, such as the integration of geological data, construction...
The spatial data model is one of the core technologies of 3D geological modeling. The expression and precision of the model directly affect the effects of the visualization and application of geological body. A framework is proposed consisting of model definition, model classification and design method by classifying, comparing and analyzing for spatial data model. The data structure and topological...
Three-dimension geological faults modeling rely on multi-sources faults data heavily. A series of approaches are adopted to triangulate geological faults by analyzing different data types. For multi faults, the priority of each fault is set according to its intersecting or restricting relationships. Based on the highest priority of faults within research region, a new Recursion algorithm dividing...
The exploitation of coal seam gas is influenced by various geological factors. In order to study the weights of these factors, this paper establishes a BP neural network prediction model by taking No.3 coal seam in the representative area of southern Qinshui basin as an example. It finds out that the potential coal-seam gas capacity of southern area of Qinshui basin is influenced by some primary factors...
The macro-treatment model of mine geological environment, namely the prevention treatment model, the progressive treatment model and the aftereffect treatment model, was brought forward on the basis of mining level and severity of environmental geology problems. The control factors are emphasized and the scientific measures are advocated in the prevention treatment model. The progressive treatment...
In this paper, a technique is discussed for surface texture mapping in 3D modeling system. An ideal work-flow approach to texture mapping is designed by analysis texture mapping and its key technique. An index table is firstly constructed, including index No., filename of texture image, size of texture image, etc. A class approach for the data of solid-model is used to distinguish which unit of the...
Coal mine safety evaluation analyses mine's existent dangerous and harmful factors, and judges mine's potential risks. The evaluation result is propitious to guard against accidents and make management decisions. This paper analyses all kinds of influence elements on coal mine safety, constructs evaluation indexes system, measures weights using AHP, and applies dynamic fuzzy theory in mine safety...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.