Optimal extensions of the transportation flows and competition between suppliers and demanders
Central places ; Centrality ; Competition ; Economic behaviour ; Market area ; Optimization ; Topology ; Transport ; Transport cost ; Transport network
Optimization models of transportation network improvement
Présentation des deux grands types d'optimisation utilisés pour améliorer les réseaux de transport. 1) Méthodes d'optimisation numérique: modèles de programmation linéaire| modèles de programmation discrète| méthodes de contrôle optimal. 2) Modèles
théoriques pour améliorer de façon optimale les réseaux: topologies optimales sur les graphes. L'A resitue ces problèmes d'optimisation dans la problématique plus générale de planification des transports: extension de l'utilisation des transports et évolution
using optimal channel networks (OCN), where each network is characterized by an exponent γ conditioning its overall topology. Finally, it is found numerically that the structural averaged stream length self-similar dimension D1 is closely related
Optimal models of river branching angles in Models in geomorphology.
Derives an optimality model for the geometry of stream junctions and discusses the effects on angles of the two parameters that compose the general optimal angular geometry models.
The AA. demonstrate a new method for obtaining optimal solutions to the Multi-Weber Problem and prove the optimality of the results. The paper seeks to improve implementation of the algorithm to make the solutions economically attractive.
This paper examines the socially optimal (and also equilibrium) locations of two stores or libraries on a linear market of unit length. If each consumer has probability of finding a desired product at each store, then the socially optimal locations
are never completely centralized for full information, but are completely centralized for when costly visit search is necessary. The Nash equilibrium locations of two stores, and various alternative models for the socially optimal locations of two stores
Optimizing the spatial structure of the agricultural production function
Agricultural production ; Agriculture ; Demand ; Location ; Model ; Optimization ; Production fonction ; Profit ; Scenario ; Spatial structure
The equilibria of optimal production with price elasticity as well as of capital intensity with labor employment determine spatial limits of the optimal production zone which is shifted outward subject to the provision of cheap transportation
. It will help in extending outwardly the optimal spatial limits of capital investment and will mobilize capital resources of farmers in the periphery for efficient and competitive capital-dominated farming.
Water resources optimization and eco-environmental protection in Qaidam Basin
Arid area ; China ; Ecosystem ; Environmental conservation ; Model ; North-Western China ; Optimization ; Sustainable development ; Water ; Water resources
Based on the essential principle of sustainable development, this paper puts forward a general idea on water resources optimization and eco-environmental protection in Qaidam Basin, and identifies the competitive multiple targets of water resources
optimization. According to the Multiple Targets Decision by the Closest Value Model, the best plan of water resources optimization, eco-environmental protection and sustainable development in Qaidam Basin is finally decided.
Recherche du nombre optimal de candidatures auquel doivent se soumettre d'éventuels immigrants pour rendre maximales leurs chances de gagner. Aux Etats-Unis.
Consideration of the available equations for prediction of aeolian sand transport led to the development of a model which relies on optimization techniques for the production of improved performance. The model has been applied