Most models of aggregate economic activity, like the standard neoclassical growth model, ignore the fact that equipment and structures are maintained and repaired. Once physical capital is purchased in these models, there are typically no more decisions made regarding its use. The theme of this article is that there is evidence to suggest that incorporating expenditures on the maintenance and r...

Earnings Median annual earnings, including commission, of home appliance repairers were $28,860 in 2000. The middle 50 percent earned between $21,840 and $38,040 a year. The lowest 10 percent earned less than $17,300, and the highest 10 percent earned more than $45,750 a year. Median annual earnings in the two industries employing the largest numbers of home appliance repairers in 2000 were $27...

In the proposed study, a medical device maintenance management system (MEDEMAS) is designed and implemented which provides a data pool of medical devices, the maintenance protocols and other required information for these devices. The system also contains complete repair and maintenance history of a specific device. MEDEMAS creates optimal maintenance schedule for devices and enables the servic...

Maintenance is the process that preserves or restores a desired state of a system or facility. The maintenance process includes three major activities: inspection, planned maintenance, and disturbance handling (where disturbances are unplanned system states). Inspection is the activity in which information about state is monitored to allow prediction or early detection of disturbances. Planned ...

Abstract Repair and maintenance operations of wind turbines constitute a significant part costs energy. In this paper, technologies structural repair damaged turbine blades are reviewed. Costs repair, technological contribution to the discussed. Technologies compared, including hand layup lamination, vacuum with infusion, ultraviolet curing high temperature thermal systems. Computational models...

The nucleolus is the subnuclear membrane-less organelle where rRNA is transcribed and processed and ribosomal assembly occurs. During the last 20 years, however, the nucleolus has emerged as a multifunctional organelle, regulating processes that go well beyond its traditional role. Moreover, the unique organization of rDNA in tandem arrays and its unusually high transcription rates make it pron...