Using Lagrangian Relaxation to Solve Ready Mixed Concrete

specializing in the production of large, medium and small concrete mixers, concrete mixing stations, stabilized soil mixing stations and other equipment. It is a heavy industry enterprise integrating R & production and sales.

Using Lagrangian Relaxation to Solve Ready Mixed Concrete ...

Apr 28, 2019  Using Lagrangian Relaxation to Solve Ready Mixed Concrete Dispatching Problems Pavan Kumar Narayanan, David Rey, Mojtaba Maghrebi, and S. Travis Waller Transportation

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Using Lagrangian Relaxation to Solve Ready Mixed Concrete ...

Using Lagrangian Relaxation to Solve Ready Mixed Concrete Dispatching Problems. The logistics and planning problem of delivering ready mixed concrete (RMC) to a

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Using Lagrangian Relaxation to Solve Ready Mixed Concrete ...

Using Lagrangian Relaxation to Solve Ready Mixed Concrete Dispatching Problem. ... Ready mix concrete (RMC) dispatching forms a critical component of the

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Using Lagrangian Relaxation to Solve Ready Mixed Concrete ...

1 Using Lagrangian Relaxation to Solve Ready Mixed 2 Concrete Dispatching Problems 3 4 Pavan Kumar Narayanan 5 Department of Mathematics, State University

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Using Lagrangian Relaxation to Solve Ready Mixed Concrete ...

The logistics and planning problem of delivering ready mixed concrete ... solve the RMCDP by using a Lagrangian relaxation technique. ... attempt is made

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Using Lagrangian Relaxation to Solve Ready Mixed Concrete ...

Using Lagrangian Relaxation to Solve Ready Mixed Concrete Dispatching Problems October 2015 Transportation Research Record Journal of the Transportation Research Board

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A Hybrid Solution Approach for Ready-Mixed Concrete ...

Feb 01, 2009  Using Lagrangian Relaxation to Solve Ready Mixed Concrete Dispatching Problems 28 April 2019 Transportation Research Record: Journal of the Transportation Research Board, Vol. 2498, No. 1 Integrated scheduling of ready-mixed concrete production and delivery

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(PDF) Using Benders Decomposition for Solving Ready Mixed ...

Using Lagrangian Relaxation to Solve Ready Mixed Concrete Dispatching Problem. Article. ... Optimally solving large scale Ready Mixed Concrete Dispatching Problems (RMCDPs) in

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lagrangian relaxation - Using LR-based method to solve ...

An example for the Set Covering Problem: "A lagrangian heuristic for set‐covering problems" (Beasley, 1990) Embedding the Lagrangian relaxation inside a branch-and-bound algorithm. It is similar to a LP-based branch-and-bound, but at each node, you solve a (whole) Lagrangian relaxation instead of a linear relaxation.

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‪Mojtaba Maghrebi‬ - ‪Google Scholar‬

Using Lagrangian relaxation to solve ready mixed concrete dispatching problems PK Narayanan, D Rey, M Maghrebi, ST Waller Transportation Research Record 2498 (1), 84-90 , 2015

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Centralized Carrier Collaboration Multihub Location ...

Jan 01, 2012  The CCCMLP was formulated as a variant of the P-hub location problem, which is NP-hard and solved with Lagrangian relaxation. Numerical experiments were conducted to gain insight into the performance of the CCCMLP formulation under various network sizes and numbers of hubs. ... Using Lagrangian Relaxation to Solve Ready Mixed Concrete ...

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Smart Construction Group

Maghrebi, M., et al., Solving ready-mixed concrete delivery problems: Evolutionary comparison between column generation and robust genetic algorithm, in Computing in Civil and Building Engineering (2014). 2014. ... P.K., et al., Using Lagrangian relaxation to solve ready mixed concrete dispatching problems. Transportation Research Record, 2015 ...

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Select Hub Publications by Dr Mojtaba Maghrebi UNSW Research

Narayanan P; Rey D; Maghrebi M; Waller ST, 2015, 'Using Lagrangian Relaxation to Solve Ready Mixed Concrete Dispatching Problems', 94th Transportation Research Board, Washington DC, USA., presented at 94th Transportation Research Board, Washington DC, USA., 11 - 15 January 2015

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The Graduate School Newsletter

Using Lagrangian Relaxation to Solve Ready Mixed Concrete Dispatch Problems May 16th ommencement Undergraduate: 10 a.m. 2 p.m. Graduate: 6 p.m. May 18th First Day of Semester (Summer 2015) May 21st MAT Exam 2:30p.m. — 4:30p.m. l utler Library 318 May 25th Memorial Day June 1st Graduation Applications Due (August 2015) ...

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David Rey UNSW Engineering

Maghrebi M; Rey D; Waller ST; Sammut C, 2014, 'Reducing the Number of Decision Variables in Ready Mixed Concrete for Optimally Solving Small Instances in a Practical Time', in Proceedings CSCE 2014 General Conference, Canadian Society for Civil Engineering, Halifax, pp. 763 - 770, presented at CSCE 2014 General Conference, Halifax, 28 May 2014 ...

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Mojtaba Maghrebi - Greater Sydney Area Professional ...

Apr 07, 2016  We attempt to solve the RMCDP, the logistics and planning problem of delivering Ready Mixed Concrete (RMC) to a set of demand customers from multiple depots by designing a solution algorithm, based on Lagrangian relaxation to reduce the complexity of the initial MIP model.

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Network Modelling Vol. 2 Blurbs New Blurbs Publications

TRB’s Transportation Research Record: Journal of the Transportation Research Board, No. 2498 consists of 13 papers covering the following topics relating to network modeling: Markov Chain Modeling of Pavement Surfacing Heuristic Approach to Capacitated Traffic Assignment Problem for Large-Scale Transport Networks Parking Reservation for Managing Downtown Curbside Parking Investigation of ...

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An Applications Oriented Guide to Lagrangian Relaxation ...

Using Lagrangian Relaxation to Solve Ready Mixed Concrete Dispatching Problems 28 April 2019 Transportation Research Record: Journal of the Transportation Research Board, Vol. 2498, No. 1 Scheduling dynamically positioned tankers for offshore oil offloading

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An improved Lagrangian relaxation approach to scheduling ...

Nov 02, 2017  Due to its complexity, Lagrange relaxation approach is adopted to solve this problem, which can yield near-optimal schedules within a reasonable computational time. By relaxing the complicated constraints, the relaxed problem can be decomposed into three subproblems by using the concave–convex procedure.

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Production scheduling and truck dispatching of ready mixed ...

Jan 01, 2008  Ready mixed concrete (RMC) is the primary material required for buildings and public infrastructure work. ... Solve the relaxation problem using CPLEX. Note that since the relaxation problem is still a mixed integer linear program, the CPLEX MIP solver is used to solve the relaxation problem. ... Lagrangian relaxation or column generation, may ...

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Transportation Research Record - Volume 2498, Number 1 ...

Jan 01, 2015  Using Lagrangian Relaxation to Solve Ready Mixed Concrete Dispatching Problems Pavan Kumar Narayanan Department of Mathematics, State University of New York at Buffalo, 332 Bishop Hall, 1300 Elmwood Avenue, Buffalo, NY 14222.

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‪David Rey‬ - ‪Google Scholar‬

Using Lagrangian relaxation to solve ready mixed concrete dispatching problems PK Narayanan, D Rey, M Maghrebi, ST Waller Transportation Research Record 2498 (1), 84-90 , 2015

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Select Hub Publications by Dr Mojtaba Maghrebi UNSW Research

Narayanan P; Rey D; Maghrebi M; Waller ST, 2015, 'Using Lagrangian Relaxation to Solve Ready Mixed Concrete Dispatching Problems', 94th Transportation Research Board, Washington DC, USA., presented at 94th Transportation Research Board, Washington DC, USA., 11 - 15 January 2015

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‪Mojtaba Maghrebi‬ - ‪Google Scholar‬

Using Lagrangian relaxation to solve ready mixed concrete dispatching problems PK Narayanan, D Rey, M Maghrebi, ST Waller Transportation Research Record 2498 (1), 84-90 , 2015

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Optimizacion de la producci´ on y despacho de´ SIO ...

lagrangian relaxation to solve ready mixed concrete dispatching prob-lems,” Transportation Research Record: Journal of the Transportation Research Board, no. 2498, pp. 84–90, 2015. [10] M. Maghrebi, V. Periaraj, S. T. Waller, and C. Sammut, “Column generation-based approach for solving large-scale ready mixed concrete

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David Rey UNSW Engineering

Maghrebi M; Rey D; Waller ST; Sammut C, 2014, 'Reducing the Number of Decision Variables in Ready Mixed Concrete for Optimally Solving Small Instances in a Practical Time', in Proceedings CSCE 2014 General Conference, Canadian Society for Civil Engineering, Halifax, pp. 763 - 770, presented at CSCE 2014 General Conference, Halifax, 28 May 2014 ...

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A more realistic approach towards concrete delivery ...

Apr 01, 2018  1. Introduction It is proven that the Ready Mixed Concrete Dispatching Problem (RMCDP) is NP-hard in the strong sense (Asbach, Dorndorf, and Pesch 2009), thus, finding an optimum solution using mathematical models can be computationally expensive and, even in reasonably sized instances, practically impossible, using today's computing facilities.

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Column Generation-Based Approach for Solving Large-Scale ...

Ready mix concrete RMC dispatching forms a critical component of the construction supply chain. However, optimization approaches within the RMC dispatching continue to evolve due to the specific size, constraints, and objectives required of the application domain.

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Select Publications by Dr Mojtaba Maghrebi UNSW Research

Maghrebi M; Periaraj V; Waller ST; Sammut C, 2014, 'Using Benders Decomposition for Solving Ready Mixed Concrete Dispatching Problems', in 2014 Proceedings of the 31st ISARC, University of Technology, Sydney, Sydney, pp. 680 - 688, presented at 31st International Symposium on Automation and Robotics in Construction and Mining, Sydney, 09 July ...

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Network Modelling Vol. 2 Blurbs New Blurbs Publications

TRB’s Transportation Research Record: Journal of the Transportation Research Board, No. 2498 consists of 13 papers covering the following topics relating to network modeling: Markov Chain Modeling of Pavement Surfacing Heuristic Approach to Capacitated Traffic Assignment Problem for Large-Scale Transport Networks Parking Reservation for Managing Downtown Curbside Parking Investigation of ...

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