The article is devoted to testing of economic and mathematical model for reequipment machine-tractor fleet (MTF) agricultural enterprise using the example simulating real technological economical processes used at enterprise. Moreover, daily capacity machines, schedule optimum agrotechnical terms operations, etc. are given as basic examples process in example. algorithm correction solving consi...

A simple mathematical model has been developed to identify and prioritize medical equipment in need of replacement. The model contains a total of ten attributes addressing four primary replacement issues: equipment service and support; equipment function; cost benefits; and clinical efficacy. Sensitivity to incomplete or subjective data is significantly reduced through the use of a "yes-no" (0,...

The aim of this paper is to analyze the macroeconomic effects of parametric reforms. An adjusted Auerbach-Kotlikoff model is used to study the effects of decreasing replacement and contribution rates of the pension system. The first part concentrates on the macroeconomic effect of reforms. Our results indicate that reducing the replacement and contribution rates increase the capital stock and d...

electric power industry have always try to provide reliable electricity to customers and at the same time decrease system costs. high voltage circuit-breakers are an essential part of the power network. this study has developed a maintenance and replacement scheduling model for high voltage circuit- breakers that minimize maintenance costs while maintaining the acceptable reliability. this mode...

This study tries to codify a proper mathematical model which can be predict the costs of repair and maintaining the tractors as precisely as possible for three common models of tractors in Shahid Beheshti cultivation firm in Andimeshk-Ahvaz road of Dezfoul. Studied tractors include: Newhland TM155 Tractor which is chosen from the most perfect file of 10 tractor machines and Jandier tractor-3140...

This study tries to codify a proper mathematical model which can be predict the costs of repair and maintaining the tractors as precisely as possible for three common models of tractors in Shahid Beheshti cultivation firm in Andimeshk-Ahvaz road of Dezfoul. Studied tractors include: Newhland TM155 Tractor which is chosen from the most perfect file of 10 tractor machines and Jandier tractor-3140...

One of the most important items for better file system performance is efficient buffering of disk blocks in main memory. Efficient buffering helps to reduce the widespeed gap between main memory and hard disks. In this buffering system, the block replacement policy is one of the most important design decisions that determines which disk block should be replaced when the buffer is full. To o...

one of the most important items for better file system performance is efficient buffering of disk blocks in main memory. efficient buffering helps to reduce the widespeed gap between main memory and hard disks. in this buffering system, the block replacement policy is one of the most important design decisions that determines which disk block should be replaced when the buffer is full. to overc...

One of the most important items for better file system performance is efficient buffering of disk blocks in main memory. Efficient buffering helps to reduce the widespeed gap between main memory and hard disks. In this buffering system, the block replacement policy is one of the most important design decisions that determines which disk block should be replaced when the buffer is full. To o...