Hybrid cranes use ultracapacitors to store energy that is regenerated when lowering a container or during braking, and reuses this energy to assist the engine later on. A hybrid crane needs a system that optimizes the fuel cost by controlling in real time the two available power sources. Currently, the crane uses a rule-based heuristic strategy, which does not achieve optimal results and is dif...

Optimal foraging theory predicts that an individual should resort to intraspecific kleptoparasitism when this foraging strategy helps to maximize its intake rate. Thus aggressor and victim should be foraging at lower and higher rates, respectively, than the flock average (intake rate maximization). Independent of the maximization principle, moreover, an aggressor should attack when its intake r...

Automated guided vehicles (AGVs) in the U-shaped automated container terminal travel longer and more complex paths. The conflicts among AGVs are trickier. scheduling strategy of traditional is difficult to be applied terminal. In order minimize handling time all tasks avoid AGV simultaneously terminal, this paper establishes a hybrid programming model for conflict-free integrated quay cranes, A...

Conley and Wilkie (1993) introduced and axiomatized the Nash extension bargaining solution, defined on a domain of comprehensive but not necessarily convex problems. In this paper we present a non-cooperative game that implements the Nash extension solution in subgame perfect equilibria in the limit as the discount rate applied between rounds of play vanishes. Journal of Economic Literature Cla...

mining and metallurgical projects are among those that require the most sizeable invest-ments undertaken in iran. one target of the current development plan and the ministry of mines and industries has been to attract foreign investment in mining projects. a survey of world-class mining companies was conducted to determine their expectations and in order to recommend a frame work for iran aimed...