Mechanical & Industrial Engineering: المرسلات الحديثة
السجلات المعروضة 601 -- 620 من 1460
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Enhanced compact models for the connected subgraph problem and for the shortest path problem in digraphs with negative cycles
(2013 , Article)We investigate the minimum-weight connected subgraph problem. The importance of this problem stems from the fact that it constitutes the backbone of many network design problems having applications in several areas including ... -
Optimal planning of liquefied natural gas deliveries
( Elsevier , 2016 , Article)We investigate the problem of designing an optimal annual delivery plan for Liquefied Natural Gas (LNG). This problem requires determining the long-term cargo delivery dates and the assignment of vessels to the cargoes ... -
MIP models for minimizing total tardiness in a two-machine flow shop
( Palgrave Macmillan Ltd. , 2013 , Article)We propose compact mixed-integer programming models for the NP-hard problem of minimizing tardiness in a two-machine flow shop. Also, we propose valid inequalities that aim at tightening the models' representations. We ... -
Improved bounds for hybrid flow shop scheduling with multiprocessor tasks
(2013 , Article)In this paper, we investigate the problem of minimizing makespan in a multistage hybrid flow-shop scheduling with multiprocessor tasks. To generate high-quality approximate solutions to this challenging NP-hard problem, ... -
A matheuristic for the robust integrated airline fleet assignment, aircraft routing, and crew pairing problem
( Elsevier , 2022 , Article)We address an integrated airline scheduling problem that combines three airline planning processes: fleet assignment, aircraft routing, and crew pairing. For a given daily flight schedule, the problem requires simultaneously ... -
A lifted compact formulation for the daily aircraft maintenance routing problem
( INFORMS Inst.for Operations Res.and the Management Sciences , 2013 , Article)Given a set of flights for a specific fleet type the aircraft routing problem (ARP) determines the flying sequence for each individual aircraft while incorporating specific considerations of minimum turn time maintenance ... -
A hybrid simulation-optimization approach for the robust Discrete Time/Cost Trade-off Problem
( Elsevier , 2015 , Article)We investigate a stochastic Discrete Time/Cost Trade-off Problem. This multimode project scheduling problem, requires assigning modes to activities, and scheduling the activities so that the sum of the activities cost and ... -
A branch-and-price algorithm for the two-stage guillotine cutting stock problem
( Palgrave Macmillan Ltd. , 2013 , Article)We investigate the two-stage guillotine two-dimensional cutting stock problem. This problem commonly arises in the industry when small rectangular items need to be cut out of large stock sheets. We propose an integer ... -
Combinatorial benders decomposition for the two-dimensional bin packing problem
( INFORMS Inst.for Operations Res.and the Management Sciences , 2021 , Article)The two-dimensional bin packing problem calls for packing a set of rectangular items into a minimal set of larger rectangular bins. Items must be packed with their edges parallel to the borders of the bins, cannot be ... -
A particle swarm optimization approach for predicting the number of COVID-19 deaths
( Nature Research , 2021 , Article)The rapid spread of the COVID-19 pandemic has raised huge concerns about the prospect of a major health disaster that would result in a huge number of deaths. This anxiety was largely fueled by the fact that the severe ... -
A novel model and decomposition approach for the integrated airline fleet assignment, aircraft routing, and crew pairing problem
( INFORMS Inst.for Operations Res.and the Management Sciences , 2017 , Article)Given a daily flight schedule and a set of aircraft fleets, the airline scheduling problem assigns individual aircraft and groups of crew to each flight based on specific considerations of aircraft maintenance requirements ... -
An integrated approach for airline flight selection and timing, fleet assignment, and aircraft routing
( INFORMS Inst.for Operations Res.and the Management Sciences , 2013 , Article)Airline profits critically depend on the nature and efficiency of service they provide and accrue from a complex planning process involving schedule design fleet assignment aircraft routing and crew scheduling which are ... -
A model for enhancing robustness of aircraft and passenger connections
( Elsevier , 2013 , Article)Airlines schedules are often subject to various uncontrollable factors that cause disruptions and delays. These delays not only constitute, for many passengers, the painful part of air travel, but also represent for airlines ... -
A simulation-optimization approach for the stochastic discrete cost multicommodity flow problem
( Taylor and Francis Ltd. , 2020 , Article)This article addresses a variant of the Discrete Cost Multicommodity Flow (DCMF) problem with random demands, where a penalty is incurred for each unrouted demand. The problem requires finding a network topology that ... -
An exact algorithm for the single machine problem with unavailability periods
( Inderscience Publishers , 2015 , Article)We investigate the single machine scheduling problem with job release dates and due dates, and multiple planned unavailability time periods. This problem arises in the context of machine scheduling with planned preventive ... -
A simulation-optimization approach for robust aircraft routing
( Universite de Lorraine , 2015 , Conference)To mitigate the impact of unpredictable disruptions, airlines are seeking to pro-actively design schedules that incorporate some robustness features. In this paper, we propose a novel simulation-optimization approach using ... -
An assignment-based lower bound for a class of two-machine flow shop problems
(2013 , Article)We present an assignment-based lower bound that is valid for a wide class of two-machine flow shop problems with a regular additive performance criterion. We provide empirical evidence that this new bound consistently ... -
Optimization of design and operation of solar assisted district cooling systems
( Elsevier , 2020 , Article)The demand for air conditioning and cooling services is rapidly increasing worldwide. As cooling demand has high coincidence to occur in countries with high solar irradiation, the combination of solar thermal energy and ... -
Optimization models for a single-plant District Cooling System
( Elsevier , 2015 , Article)A District Cooling System (DCS) is an interconnected system encompassing a centralized chiller plant, a Thermal Energy Storage (TES) unit, a piping network, and clusters of consumers' buildings. The main function of a DCS ... -
Solving a large-scale crew pairing problem
( Palgrave Macmillan Ltd. , 2015 , Article)Airline companies seek to solve the problem of determining an assignment of crews to a pre-determined flight schedule with minimum total cost, called the Crew Pairing Problem (CPP). Most of the existing studies focus on ...
