Hydraulic turbine runners are used in electricity generation. These consist of a cylinder around which are welded, at regular spacings, a number of blades w...

In this paper the authors describe a heuristic principle for the solution of an important class of problems. Using real-world examples, it is then shown how...

Post box collection constitutes a complex and costly operation in most postal services. The authors recently undertook a study aimed at improving this opera...

A qualitative model is proposed by the economic analysis of the power exchange between two utilities. The model combines an infinite horizon optimal control...

This article examines a constrained shortest path problem which occurs in the design by column generation of vehicle routes constructed to satisfy a set of t...

This paper describes a vehicle flow model for a two-echelon location-routing problem involving deliveries from primary to secondary facilities and from secon...

The aim of this paper is to develop an exact algorithm for the asymmetrical distance constrained vehicle routing problem. The problem is solved by means of ...

The single-vehicle dial-a-ride problem with time window constraints for both pick-up and delivery locations, and precedence and capacity constraints, is solv...

This paper describes an exact algorithm for a general class of asymmetrical vehicle routing problems. Vehicle routes start and end at a central depot. Visi...

Let n facilities be located on a bounded linear market and assume that demand for a homogenous commodity is uniformly distributed along that market. Initial...

This paper presents an exact algorithm for a generalized version of the Travelling Salesman Problem which consists of finding the shortest Hamiltonian cirnui...

This paper describes an exact algorithm for the asymmetrical multiple travelling salesman problem. The problem is solved by branch and bound and a flow circ...

Cet article traite d'un problème de plus court chemin sous contraintes. Il s'agit du chemin d'un véhicule complétant un sous-ensemble de demandes de transpo...

This paper deals with the optimal location of post boxes in an urban or in a rural environment. The problem consists of selecting sites for post boxes which...

This paper presents an integer linear programming formulation for the symmetrical capacitated vehicle routing problem (CVRP). This formulation includes degr...

It is well-known (see Pang and Chan [7]) that Newton's method, applied to strongly monotone variational inequalities, is locally and quadratically convergent...

Cet article décrit dive3rs types d'horaires de travail en vigueur dans les entreprises et les services publics, ainsi que les principales méthodes de recherc...

This paper examines a family of permutation problems on 0-1 matrices. These problems arise in scheduling and in archaeological seriation. Three exact algor...

This paper presents a survey of exact algorithms for various types of vehicle routing problems. Algorithms are divided into three main categories: direct s...

Le présent article décrit des méthodes algorithmiques de traitement des exigences rigides et souples dans certains problèmes complexes d'optimisation combina...