University Machine Research Articles

Thermal Imaging Ensures Aircraft Turbine Quality

AbstractHighest quality standards during the manufacturing process of engine components are indispensable for secure aviation. The research conducted at the RWTH Aachen University's machine tool laboratory focuses on temperature as the primary variable in the machining process. This is a complex process due to the high speeds and relatively thin chips. These chips have a minimum thickness of 15 micrometers, and required a fast, high‐resolution thermal imaging camera equipped with a macro lens.The thermographic studies confirm some of the common theories but have also resulted in corrections to the theoretically expected distribution of temperatures, which has in turn lead important insights, which help imtoprove quality and workmanship. The machine tool lab researchers have been able to define process conditions that ensure the highest quality and productivity at the same time.

MORTALITY RATES IN KERMANSHAH PROVINCE - 2000

Background & Objective: Mortality data can be the starting point for many epidemiological surveys. This study was conducted to determine the mortality rates of Kermanshah Province in 1379. Materials and methods: Mortality rate of rural and urban areas were obtained from Kermanshah Health Center and BaghFerdows Cemetery's archives, respectively. The data of other cities of the province were gathered through health centers through a standard national chart. The chart, which has been delivery by University's Machine – readable Services (UMS) consists of 17 etiologies of death. Statistical data related to the cemetery of Sonies and other religious minorities were not obtained. The completed forms were checked and coded. The repetitive items were omitted. The needed population size were obtained form the Health Affairs Organization of Kermanshah Province. Results: A total of 9234 dead persons were reported in Kermanshah Province (%41.3 female and %58.5 male). The crude death rate was 5.06 per thousand; median age was 50 +30 year, %67.8 were from urban and %32.2 from rural areas. The five common causes of death were cardiac disease (1.8 per 1000), suicide, poisoning and accidents (0.76 per1000), poorly defined causes (0.72 per 1000), cancer (0.45 per1000), and prepartum illnesses (0.41 per 1000). Discussion : Mortality rates in Kermanshah province are higher than the national norms. The mortality rate from five common causes of death is also higher when compared to the national norms. There is a need to study the causes of high mortality rate in kermanshah, especially those due to cardiac disease