Roussos Dimitrakopoulos

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96 results — page 3 of 5

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As more and more data about mining complex operations is collected and stored, it becomes increasingly important for computer systems to help human operators...

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The mining value chain comprises many inter-related components, from mines to transportation, to customers. When the individual components are optimized sep...

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This study presents a production scheduling optimization method for a mining complex, which provides a flexible long-term plan for future investments and ope...

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Management and storage of waste and tailings are critical concerns in open pit mining, especially when the available space is limited but also to reduce the ...

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Long-term open pit mine scheduling is generally assessed with a mixed integer programming (MIP) formulation which can be solved with different operations res...

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This paper analyzes the effects of geological heterogeneity representation in a producing reservoir, when different stochastic simulation methods are used, s...

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For pattern-based simulation methods such as SIMPAT, filtersim, wavesim, ect, patterns are stored by scanning a training image with a sliding template. Dimen...

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The traditional mine planning framework employs a flawed approach in the design of ultimate pit limits and phases. Conventional methods arbitrarily confine ...

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This paper presents three hyper-heuristic approaches for the stochastic open-pit mine production scheduling problem with one processing stream (SMPS) and one...

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Complex polymetallic mining projects with multiple processing streams tend to require tight blending constraints, with different operational and processing t...

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With the advent of inexpensive sensors and digital storage, increasing amounts of data about a mining complex can be collected. This can include camera imagi...

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Every mining operation faces a decision on additional drilling at some point during its lifetime. The two questions that always arise with this decision are ...

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Recent developments in the global rare earth elements (REE) sector have caused a surge in motivation for nations outside of China to secure their own REE sup...

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A decomposition method is developed to optimize a mineral value chain composed of a one or multiple mines and a material flow circuit. In the proposed decomp...

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As open pit mining of a mineral deposit deepens, the cost of extraction may increase up to a threshold where transitioning to mining through underground meth...

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High-order sequential simulation techniques for complex and non-Gaussian spatially distributed variables were developed over the last few years. This paper p...

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Mineral value chains consist of material from multiple sources, several processing streams, and transportation systems that combine to generate various salea...

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Over the past several years, there has been substantial progress in developing new stochastic mine planning optimization models and computationally efficient...

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This paper presents a new high-order, non-stationary sequential simulation approach, aiming to deal with the typically complex, curvilinear structures and hi...

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A stochastic integer-programming (SIP) model is presented to optimize long-term scheduling of underground mine operations while considering geological uncert...

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