predicting the maintenance and management costs and replacement age of tractors in agricultural mechanized units, is important from several points. so, doing a timely agricultural operations, more accurate measure of the amount of income  including the cost of these items , determining the useful life of old tractors , replacement age, cost of the process changes and the possibility of examinin...

emerge from when multiple agents interact with one another. Many software systems have been successfully imAlthough many competing definitions of what conplemented using an agent paradigm which employs stitutes an agent exist there is generally good agreea number of independent entities that communicate ment that agents should operate in a system with with one another to achieve a common goal. ...

Living systems provide a good metaphor for the coordination of autonomous agents managing tasks according to their role in the system. The study of such systems from the point of view of General Systems Theory would benefit from computational experimentation. This paper proposes an agent-based methodology for system modeling as well as computational tools to develop and test system models. Biol...

maintenance is one of the inseparable parts of each industry and relations between this part and others consist of many dynamics and feedbacks. by this regard systems dynamic is a tool that can be used to analyze this part. in this paper for a company that produces wire and cable, cause and effect (feedbacks) between maintenance and others part are modeled. after creating stock-flow diagram, mo...

We propose in this paper an hypothetical reasoning model based on Assumption-Based Truth Maintenance Systems (ATMS). The model is integrated into a three levels hierarchical multi-agent architecture 3] 4] built with two kinds of agents called respectively specialist agent and supervisor agent. An ATMS is integrated into each specialist agent. The reasoning mechanism of the agent is based on a k...

Objectives . To upgrade and complement the existing load balancing model in multi-server systems, taking into account hardware characteristics of server equipment, as well most loaded components equipment video conferencing service cluster educational processes distance education. Methods The mathematical a mass exchange system is considered, when significant changes are introduced: penalties f...

Traditional theories regarding the etiology of borderline personality disorder have focused on poor attachment figures and/or traumatic experience. The present review posits an additional pathogenic course for this disorder. Specifically, the proposed mechanism involves a basic disruption of the neural hardware that supports the formation and maintenance of unconscious emotional memory, hardwar...

A major competitive advantage of production and service systems is establishing a proper maintenance policy. Therefore, maintenance managers should make maintenance decisions that best fit their systems. Multi-criterion decision-making methods can take into account a number of aspects associated with the competitiveness factors of a system. This paper presents a multi-criterio...

With large expansion plans for the offshore wind turbine industry there has never been a greater need for effective operations and maintenance. The two main problems with the current operations and maintenance of an offshore wind turbine are the cost and availability. In this work a simulation model has been produced of the maintenance process for a wind turbine with the aim of developing a pro...