Traumatic optic nerve injury may lead to almost instantaneous blindness.We describe a case of cashel tail bag sight loss after a perforating injury to the eye.The case is unusual in that the patient remained conscious and the trauma to the eye was isolated.A full ophthalmological examination was therefore possible within hours as well as early magn
Graphene is regarded as a promising solid-state lubricant; however, its frictional properties under varying conditions remains limited.In this study, atomic force lovesense 3 microscopy (AFM) is used to measure the frictional behavior of graphene supported on four different substrates.It is found that for hard substrates, roughness reduces the inte
The purpose of this paper is identifying speculative rational bubbles and applying early warning indices to illustrate these bubbles in USD/IRR informal exchange rate during volatile period of March 2011 to September 2018.The deviation of the exchange rate from fundamental values which is known as bubble may occur as a result of a speculative attac
Based on data from the production and maintenance department, the highest downtime happen in JDK machine at ABC company.High downtime caused by spare parts lacking or replacement parts when the machine damaged, it cause the engine stop longer.This study analyze and determine spare part inventory the policy, especially critical components in JDK mac