using lagrangian relaxation to solve ready mixed concrete

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 Research Record 2019 2498 : 1 , 84-90

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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 of New York, NY, USA 6 [email protected] ...

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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 set of demand customers from multiple depots is addressed. The RMC dispatching problem (RMCDP) is closely related to the vehicle routing problem, with the difference that a truck may ...

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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 to solve this NP-hard problem by using ...

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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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Chapter 12 Lagrangian Relaxation

the optimal solution of the Lagrangian dual coincides with the optimal solution of the initial problem. Also, the bound obtained thanks to the Lagrangian relaxation is at least as good as the one obtained from fractional relaxation. 12.2.1 Lagrangian dual Consider the following integer linear programme: Minimize cTx subject to Ax=b x∈X (12.3)

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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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‪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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A more realistic approach towards concrete delivery ...

Apr 01, 2018  "Using Lagrangian Relaxation to Solve Ready Mixed Concrete Dispatching Problems." Transportation Research Record: Journal of the Transportation Research Board 2498: 84-90. Naso, D., M. Surico, B. Turchiano, and U. Kaymak. 2007. "Genetic Algorithms for Supply-chain Scheduling: A Case Study in the Distribution of Ready-mixed Concrete."

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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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A planning model with a solution algorithm for ready mixed ...

In this study the authors employ network flow techniques to construct a systematic model that helps ready mixed concrete carriers effectively plan production and truck dispatching schedules under stochastic travel times. The model is formulated as a mixed integer network flow problem with side constraints. Problem decomposition and relaxation techniques, coupled with the CPLEX

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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 si...

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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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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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Journal articles: 'Adaptive multi-scale method' – Grafiati

List of journal articles on the topic 'Adaptive multi-scale method'. Scholarly publications with full text pdf download. Related research topic ideas.

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ATI RN Comprehensive Predictor Form A, B, C, AND ATI ...

ATI RN Comprehensive Predictor Form A 1. A nurse in a pediatric unit is preparing to insert an IV catheter for 7-year- old. Which of the following actions should the nurse take? A. (Unable to read) B. Tell the child they will feel discomfort during the catheter insertion. C. Use a mummy restraint to hold the child during the catheter insertion. D. Require the parents to leave the room during ...

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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

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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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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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Chapter 9: Lagrangian Relaxation Julia Programming for ...

Chapter 9 Lagrangian Relaxation. Computational methods based on Lagrangian relaxation have been popularly used for solving many optimization problems, especially for mixed integer linear programming problems and combinatorial optimization problems. The key idea behind the algorithm is typically that we relax hard constraints to make the relaxed ...

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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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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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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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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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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 si...

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Mojtaba Maghrebi UNSW Engineering

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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‪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. 13: 2015: Complex Number Formulation and Convex Relaxations for Aircraft Conflict Resolution. D Rey, H Hijazi.

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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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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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ready-mixed concrete Genetic Algorithm Mathematical ...

M.Y. Cheng, D.H. Tran, Integrating chaotic initialized opposition multiple-objective [6] S.Q. Wang, C.L. Teo, G. Ofori, Scheduling the truckmixer arrival for a ready mixed differential evolution and stochastic simulation to optimize ready-mixed concrete concrete pour via simulation with risk, J. Constr. Res. 2 (2001) 61–71 (Available truck ...

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