Author: Jun ZhouPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Analysis of a Mine-mill Production System Using Simulation and Integer Programming
Author: Jun ZhouIntelligent Decision-making Models for Production and Retail Operations
Author: Zhaoxia GuoPublisher: Springer
ISBN: 3662526816
Category : Technology & Engineering
Languages : en
Pages : 330
Book Description
This book provides an overview of intelligent decision-making techniques and discusses their application in production and retail operations. Manufacturing and retail enterprises have stringent standards for using advanced and reliable techniques to improve decision-making processes, since these processes have significant effects on the performance of relevant operations and the entire supply chain. In recent years, researchers have been increasingly focusing attention on using intelligent techniques to solve various decision-making problems. The opening chapters provide an introduction to several commonly used intelligent techniques, such as genetic algorithm, harmony search, neural network and extreme learning machine. The book then explores the use of these techniques for handling various production and retail decision-making problems, such as production planning and scheduling, assembly line balancing, and sales forecasting.
A Short Course on Mine System Simulation Using a Digital Computer
Author: Young Chang KimPublisher:
ISBN:
Category : Computer simulation
Languages : en
Pages : 154
Book Description
New Integer Programming Approaches to Open-pit Mining and Metabolic Engineering Problems
Author: Amanda G. SmithPublisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
We study new optimization-driven approaches to two engineering problems, employing techniques from integer, bilevel, stochastic, and multi-objective programming. We first present an approach to the open-pit mining truck dispatching problem that utilizes mixed-integer programming (MIP). The truck dispatching problem seeks to determine how trucks should be routed through the mine as they become available. We describe an optimization-driven approach to solving the dispatching problem in the form of a MIP model. The model is difficult to solve directly, so we present a heuristic that quickly produces high-quality feasible solutions to the model. We give computational results demonstrating the effectiveness of the proposed heuristics and several key model components. To show that our model finds solutions that meet the open-pit mining objectives while accounting for key problem components in novel ways, we embed the MIP-based dispatching policy in a discrete-event simulation of an open-pit mine. We further create two additional heuristic dispatching policies that rely on a new nonlinear rate-setting model that treats queueing at each site as an M/G/1 queue. We present a full computational study of the three policies in which we perform output analysis on key metrics of the open-pit mine simulation. We show that the MIP-based dispatching policy consistently outperforms the heuristic dispatching policies on open-pit mines with a variety of characteristics. The second problem we study is selecting metabolic network changes in cellular organisms. In this problem, enzymes are used to alter the rates at which reactions occur in cellular organisms, causing the cell to increase the output of a desired biochemical product. In existing bilevel MIP models, the lower-level cellular objective is modeled as either maximizing cellular growth or minimizing the biochemical output. We combine these perspectives with two new bilevel MIP models: a single-objective maximum productivity model and a bi-objective maximum yield and maximum growth model. We finally present two-stage stochastic extensions of both models in which we maximize the expected values of productivity, yield, and growth when the planned changes to the metabolic network are uncertain. Because the stochastic bi-objective model contains a complicating budget constraint that lacks parallel structure, we describe a heuristic that alternates between a scenario decomposition-based algorithm and allocating the budget to individual scenarios. Ultimately, we show that this methodology can be implemented to find solutions that meet the metabolic engineering objectives but which are less sensitive to uncertainty than solutions to existing models. This dissertation includes the following three supplemental data files: - A2-SimData.xlsx: data used to generate the simulation of an open-pit mine described in Chapter 3, - A3-CoreModel.xlsx: data used to generate instances of bilevel metabolic engineering models of the core network reconstruction of E. coli as described in Chapter 4, and - A3-iJR904.xlsx: data used to generate instances of bilevel metabolic engineering models of the iJR904 network reconstruction of E. coli as described in Chapter 4.
Advances in Productive, Safe, and Responsible Coal Mining
Author: Joseph HirschiPublisher: Woodhead Publishing
ISBN: 0081013019
Category : Technology & Engineering
Languages : en
Pages : 338
Book Description
Advances in Productive, Safe, and Responsible Coal Mining covers the latest advancements in coal mining technology and practices. It gives a comprehensive introduction to the latest research and technology developments, addressing problems and issues currently being faced, and is a valuable resource of complied technical information on the latest coal mining safety and health research. As coal's staying power has been at the forefront of the world's energy mix for more than a century, this book explores critical issues affecting coal mining, including how to maintain low-cost productivity, address health and safety hazards, and how to be responsible environmental stewards. This book takes a holistic approach in addressing each issue from the perspective of its impact on the coal mining operation and industry as a whole. - Explains how to effectively produce coal within existing environmental constraints - Encapsulates the latest health and safety research and technological advances in the coal mining industry - Written by authors who have developed the latest technology for coal mines
Operations Research/management Science
Author: Über die Litel des Kaisers von Oesterreich ... (Sur les titres de l'Empereur d'Autriche et leurs variations.).
Author: List of Bureau of Mines Publications and Articles ... with Subject and Author Index
Author: United States. Bureau of MinesPublisher:
ISBN:
Category : Mineral industries
Languages : en
Pages : 226
Book Description
Modeling, Design and Optimization of Multiphase Systems in Minerals Processing
Author: Luis A. CisternasPublisher: MDPI
ISBN: 3039284002
Category : Technology & Engineering
Languages : en
Pages : 232
Book Description
Mineral processing deals with complex particle systems with two-, three- and more phases. The modeling and understanding of these systems are a challenge for research groups and a need for the industrial sector. This Special Issue aims to present new advances, methodologies, applications, and case studies of computer-aided analysis applied to multiphase systems in mineral processing. This includes aspects such as modeling, design, operation, optimization, uncertainty analysis, among other topics. The special issue contains a review article and eleven articles that cover different methodologies of modeling, design, optimization, and analysis in problems of adsorption, leaching, flotation, and magnetic separation, among others. Consequently, the topics covered are of interest to readers from academia and industry.
APCOM XXV 1995
Author: Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 612
Book Description