Buscar
Mostrando ítems 1-10 de 111
Modelagem de dados de entrada para simulação estocástica de lavra
(Escola de Minas, 2010)
Mine simulation depends on data that is both coherent and representative of the mining operation. This paper describes a methodology for modeling operational data which has been developed for mine simulation. The methodology ...
UML Profile for Mining Process: Supporting Modeling and Simulation Based on Metamodels of Activity Diagram
(Hindawi Publishing Corporation, 2014-02-04)
An UML profile describes lightweight extension mechanism to the UML by defining custom stereotypes, tagged values, and constraints. They are used to adapt UML metamodel to different platforms and domains. In this paper we ...
Modelagem de dados de entrada para simulação estocástica de lavra
(Escola de Minas, 2010)
A simulação de lavra depende da utilização de dados coerentes e representativos da operação da mina. Esse trabalho propõe uma metodologia de modelagem de dados especificamente desenvolvida para simulação de lavra. A ...
Photorealistic simulated modelling from fractals applied to mined-out pit restoration
(Universidad Nacional de Colombia Sede Medellín, 2014-08-25)
3D modelling has been used to simulate the restoration of mining environments, mainly due to ease of use. However, this technique poorly models natural structures, such as leaves, coastlines, mountain systems, etc. Recent ...
Integral transform analysis of radionuclide transport in variably saturated media using a physical non-equilibrium model: Application to solid waste leaching at a uranium mining installation
(2020-01-01)
The Generalized Integral Transform Technique (GITT) was employed to simulate transient one-dimensional flow in variably saturated porous media, as well as radioactive waste transport within different layers (a solid waste ...
Simulation software VENTSIM™ the influence of implementation of work abandoned sealings ventilation of an underground coal mine
(Universidad Nacional de Colombia - Sede Medellín - Facultad de Minas, 2018-01-01)
Es común encontrar que en algunas unidades mineras de la cuenca carbonífera de Sinifaná, no ejercen el debido control sobre lo sellamientos y, por tanto, permiten que el aire realice recorridos por zonas que no requieren ...
An enhanced VLC channel model for underground mining environments considering a 3D dust particle distribution model
(MDPI, 2022)
Underground Mining (UM) is a hostile industry that generally requires a wireless communication system as a cross-cutting axis for its optimal operation. Therefore, in the last five years, it has been shown that, in addition ...
Spatial modeling of discontinuity intensity from borehole observations at El Teniente mine, Chile
(Elsevier, 2017)
This work addresses the problem of predicting the discontinuity intensity P32 (discontinuity area per unit volume
of rock mass) in space and of quantifying the uncertainty in the true P32 values, using information from ...
Human resource allocation in business process management and process mining: a systematic mapping study
(Emerald Group Publishing Ltd, 2018)
urpose Human resource allocation is considered a relevant problem in business process management (BPM). The successful allocation of available resources for the execution of process activities can impact on process ...
Evaluation of load losses in the ventilation circuit by the use of fortification in coal mines, study case: nechí mine, amagá, antioquia
(Universidad Nacional de Colombia, 2014)
The research aims to identify the variables which influence on the increase of risk for explosions in underground coal mines, especially in the accumulation of coal dust on top of the fortification, as well as analyze how ...