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Öğe Factors facilitating child abuse in sports in Turkey: The case of elite athletes(2020) Çetin, Erdal, Hacısoftaoğlu İlknurThis study analyzed child abuse practices and the factors facilitating abuse in sports organizations in Turkey. It used qualitative research methods through individual interviews in order to understand the case experientially and in-depth from various perspectives. Semi-structured, in-depth interviews were conducted with 39 individuals older than 18 years of age who had either previously done or were currently involved in an individual sport. The interviews retrospectively focused on the abuse practices experienced by the participants during their childhood and the factors facilitating these practices. Furthermore, this piece of research utilized content analysis of the interview data and explored the factors leading to abuse practices in sports under four main themes. Thus it was concluded that the most important factors leading to child abuse in sports include types of relationships built in sports fields; sociological factors outside the sport field; sports-specific locations and problems experienced in child protection in Turkey.Öğe Investigation of the most suitable machining parameters for quasi-isotropic carbon fiber reinforced composites(5th International Bursa Scientific Researchs Congress, 2024) Adin, Mehmet ŞükrüCarbon fiber reinforced composites are widely used materials in the aerospace and aviation industries due to their superior properties. In order to make such materials ready for use, machining is required. However, various difficulties are encountered during the machining of these materials. Therefore, great importance is attached to research on high-quality machining of these materials. For this purpose, in this research, carbon fiber reinforced epoxy composite with "0°/45°/90°" fiber angles (known as quasi-isotropic fiber orientation), which creates a more uniform strength distribution, was chosen as the workpiece. In this context, average surface roughness (Ra) values were investigated by drilling the carbon fiber reinforced epoxy composite workpiece with a 5.2 mm diameter High Speed Steel (HSS) drill at different spindle speeds (1200, 2400, 4800 rev/min) and different feed rates (0.04, 0.12, 0.20 mm/rev) parameters. As a result of the experimental study carried out, it was observed that the surface roughness increased depending on the increase in the feed rate, and decreased depending on the increase in the number of revolutions. The smallest surface roughness value was found as 2.15 μm, and the largest surface roughness value was found as 4.15 μm. It was revealed that the largest surface roughness value was 93% higher than the smallest surface roughness value.
