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Cost Sharing under Uncertainty: An Algorithmic Approach to Cooperative Interval-Valued Games

Kimms, Alf; Drechsel, Julia - In: BuR - Business Research 2 (2009) 2, pp. 206-213

will present a general mathematical programming algorithm which can be applied to find an element in the interval core. As …

Persistent link: https://www.econbiz.de/10010421344

Exact Solutions to the Symmetric and Asymmetric Vehicle Routing Problem with Simultaneous Delivery and Pick-Up

Rieck, Julia; Zimmermann, Jürgen - In: BuR - Business Research 6 (2013) 1, pp. 77-92

In reverse logistics networks, products (e.g., bottles or containers) have to be transported from a depot to customer locations and, after use, from customer locations back to the depot. In order to operate economically beneficial, companies prefer a simultaneous delivery and pick-up service....

Persistent link: https://www.econbiz.de/10010421381

Two phase genetic algorithm for vehicle routing and scheduling problem with cross-docking and time windows considering customer satisfaction

Baniamerian, Ali; Bashiri, Mahdi; Zabihi, Fahime - In: Journal of Industrial Engineering International 14 (2018) 1, pp. 15-30

/tardy deliveries with scheduling of inbound and outbound vehicles to increase customer satisfaction. A two phase genetic algorithm (GA …) is developed for the problem. For investigating the performance of the algorithm, it was compared with exact and lower … results show that the proposed two phase algorithm could achieve optimal solutions in small-size instances. Also in large …

Persistent link: https://www.econbiz.de/10011995818

Valuing Public Investments to Support Bicycling

Götschi, Thomas; Hintermann, Beat - In: Swiss Journal of Economics and Statistics 150 (2014) 4, pp. 297-329

We develop a framework for assessing the net benefits of investments to promote bicycling, which explicitly accounts for internal costs of bicycling. We apply our model to eight Swiss cities using data from the Swiss national travel survey and find that increasing the level of bicycling by...

Persistent link: https://www.econbiz.de/10011933326

Aerodynamic effect of bicycle wheel cladding: A CFD study

Arora, B. B.; Bhattacharjee, Sourajit; Kashyap, Vishesh; … - In: Energy Reports 5 (2019), pp. 1626-1637

Aerodynamic drag in a bicycle can originate through the rotation of wheels, and the addition of cladding on the wheels … has a pronounced impact on the same. In the present work, the effect of cladding on the wheels of a bicycle is studied in … Simulation is used to conduct an external analysis of flow air around the bicycle and rider. The k-ε turbulence model is used to …

Persistent link: https://www.econbiz.de/10012652060

Closing the gap in linear bilevel optimization: a new valid primal-dual inequality

Kleinert, Thomas; Labbé, Martine; Plein, Fränk; … - In: Optimization Letters 15 (2020) 4, pp. 1027-1040

Linear bilevel optimization problems are often tackled by replacing the linear lower-level problem with its Karush–Kuhn–Tucker conditions. The resulting single-level problem can be solved in a branch-and-bound fashion by branching on the complementarity constraints of the lower-level...

Persistent link: https://www.econbiz.de/10014504266

A Cooperative and Adaptive Variable Neighborhood Search for the Multi Depot Vehicle Routing Problem with Time Windows

Polacek, Michael; Benkner, Siegfried; Doerner, Karl F.; … - In: BuR - Business Research 1 (2008) 2, pp. 207-218

In this paper we propose two cooperation schemes to compose new parallel variants of the Variable Neighborhood Search (VNS). On the one hand, a coarse-grained cooperation scheme is introduced which is well suited for being enhanced with a solution warehouse to store and manage the so far best...

Persistent link: https://www.econbiz.de/10010421332

A set-covering formulation for a drayage problem with single and double container loads

Ghezelsoflu, A.; Di Francesco, M.; Frangion, A.; Zuddas, P. - In: Journal of Industrial Engineering International 14 (2018) 4, pp. 665-676

This paper addresses a drayage problem, which is motivated by the case study of a real carrier. Its trucks carry one or two containers from a port to importers and from exporters to the port. Since up to four customers can be served in each route, we propose a set-covering formulation for this...

Persistent link: https://www.econbiz.de/10011995863

Vehicle routing problem for the minimization of perishable food damage considering road conditions

Buelvas Padilla, María Paula; Nisperuza Canabal, Paula … - In: Logistics Research 11 (2018) 2, pp. 1-18

Transportation is one of the post-harvest activities in which perishable food products may suffer mechanical damage, which translates into a substantial loss of quality and product value. The main source of this type of damage in transportation is vibration, influenced, among others factors, by...

Persistent link: https://www.econbiz.de/10011902112

Research on multi-objective emergency logistics vehicle routing problem under constraint conditions

Du, Miaomiao; Yi, Hua - In: Journal of Industrial Engineering and Management (JIEM) 6 (2013) 1, pp. 258-266

Purpose: Aim at choosing a relative good vehicle routing in emergency conditions under constraint conditions when disaster happens. Rapid response and rescue can save a lot of people. Design/methodology/approach: Modeling analysis: establishing a mathematical model of multi-objective emergency...

Persistent link: https://www.econbiz.de/10011939041