Volume 26, Issue 9
مرور بر اساس
ارسال های اخیر
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Real-time Scheduling of a Flexible Manufacturing System using a Two-phase Machine Learning Algorithm
(Materials and Energy Research Center, 2013-09-01)The static and analytic scheduling approach is very difficult to follow and is not always applicable in real-time. Most of the scheduling algorithms are designed to be established in offline environment. However, we are ...
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Modeling and Hybrid Pareto Optimization of Cyclone Separators Using Group Method of Data Handling (GMDH) and Particle Swarm Optimization (PSO)
(Materials and Energy Research Center, 2013-09-01)In present study, a three-step multi-objective optimization algorithm of cyclone separators is catered for the design objectives. First, the pressure drop (Dp) and collection efficiency (h) in a set of cyclone separators ...
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Performance Analysis of a Repairable Robot Safety System with Standby, Imperfect Coverage and Reboot Delay
(Materials and Energy Research Center, 2013-09-01)The present study deals with a robot safety system composed of standby robot units and inbuilt safety unit. When the main operative unit fails, it is replaced by the standby robot unit available in the system. The concept ...
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Reliability Measures Improvement and Sensitivity Analysis of a Coal Handling Unit for Thermal Power Plant
(Materials and Energy Research Center, 2013-09-01)The present paper investigates the reliability and sensitivity analysis of a coal handling unit of a thermal power plant using a probabilistic approach. Coal handling unit is the main block of a thermal power plant and it ...
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Solving a Redundancy Allocation Problem by a Hybrid Multi-objective Imperialist Competitive Algorithm
(Materials and Energy Research Center, 2013-09-01)A redundancy allocation problem (RAP) is a well-known NP-hard problem that involves the selection of elements and redundancy levels to maximize the system reliability under various system-level constraints. In many practical ...
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Designing Incomplete Hub Location-routing Network in Urban Transportation Problem
(Materials and Energy Research Center, 2013-09-01)In this paper, a comprehensive model for hub location-routing problem is proposed which no network structure other than connectivity is imposed on backbone (i.e. network between hub nodes) and tributary networks (i.e. ...
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Short-term Price-based Unit Commitment of Hydrothermal GenCos: A Pre-emptive Goal Programming Approach
(Materials and Energy Research Center, 2013-09-01)The solution of single-objective unit commitment problems for generation companies participating in deregulated markets may not directly be implementable mainly because of neglecting some conflicting secondary objectives ...
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Comparing Three Proposed Meta-heuristics to Solve a New p-hub Location-allocation Problem
(Materials and Energy Research Center, 2013-09-01)This paper presents a new mathematical model, in which the location of hubs is fixed and their capacity is determined based on facilities and factories allocated to it. In order to feed the client's nodes, different types ...
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A Nonlinear Model for a Capacitated Location-allocation Problem with Bernoulli Demand using Sub-sources
(Materials and Energy Research Center, 2013-09-01)This study presents a capacitated multi-facility location-allocation problem with stochastic demands based on a well-known distribution function. In this discrete environment, besides the capacitated facilities, we can ...
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Bayes Interval Estimation on the Parameters of the Weibull Distribution for Complete and Censored Tests
(Materials and Energy Research Center, 2013-09-01)A method for constructing confidence intervals on parameters of a continuous probability distribution is developed in this paper. The objective is to present a model for an uncertainty represented by parameters of a ...
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Estimation and Prediction of Residential Building Energy Consumption in Rural Areas of Chongqing
(Materials and Energy Research Center, 2013-09-01)Energy simulation is a vital part of energy policy of a country, especially for a developing country like China where energy consumption is growing very rapidly. The present study has been conducted to simulate the total ...
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Simulation and Experiment on Conveying Device of Cutting System of Small Sugarcane Harvester (RESEARCH NOTE)
(Materials and Energy Research Center, 2013-09-01)The main problem is less efficiency and blocking during sugarcane harvesting in hilly areas. This paper researched the cutting and transporting system of a small sugarcane harvester using virtual prototype technology. The ...
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A two Stage Heuristic Solution Approach for Resource Assignment during a Cell Formation Problem
(Materials and Energy Research Center, 2013-09-01)Design of Cellular Manufacturing System involves four major decisions: Cell formation (CF), Group layout (GL), Group scheduling (Gs) and Resource assignment (RA). These problems should be regarded, concurrently, in order ...
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Capacitated Multimodal Structure of a Green Supply Chain Network Considering Multiple Objectives
(Materials and Energy Research Center, 2013-09-01)In this paper, a supply chain network design problem is explained which contains environmental concerns in arcs and nodes of network. It is assumed that there are some routes such as road, rail and etc. in each pair of ...
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Monitoring and Change Point Estimation of AR(1) Autocorrelated Polynomial Profiles
(Materials and Energy Research Center, 2013-09-01)In this paper, a remedial measure is first proposed to eliminate the effect of autocorrelation in phase-ІІ monitoring of autocorrelated polynomial profiles, where there is a first order autoregressive (AR(1)) relation ...



