In recent years, hard turning, an alternative to grinding, which provides low cost and good surface quality, has become an attractive method to the manufacturers. In this experimental study, AISI H11 hot work tool steel that has been hardened up to 50 HRC was subjected to hard turning tests with coated carbide tooling. The analyses were carried out by applying response surface methodology with the analysis of variance method. A total of 27 experiments were modeled utilizing 3 3 full factorial design and were carried out using a CNC lathe. The effects of the cutting parameters on surface roughness, energy consumption, electric current value, and sound intensity level were investigated. Optimum cutting parameters and levels were determined according to these optimum values. The relationship between cutting parameters and output variables was analyzed with two-dimensional and three-dimensional graphics. The results show that while the most effective parameter on the surface roughness was the feed rate (88.62%), the most effective parameter on the sound intensity level was the cutting speed (44.92%). In addition, the cutting depth was the most effective parameter on both electric current (52.20%) and energy consumption (46.15%). Finally, regression coefficients were determined as a mathematical model, and it was observed that this estimated model gave results that were very similar to those achieved with real experiment (correlation values: 97.64% for surface roughness, 98.72% for energy consumption, 97.22% for electric current value, and 91.38% for sound intensity level).

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Abdominal trauma accounts for 7–10% of hospital admissions due to trauma. Depending on the mechanism of occurrence, abdominal traumas are classified as either blunt or penetrating. The most important risk after trauma is hypovolemic shock. Deaths caused by blunt trauma are frequently the result of diagnostic difficulties and treatment delays. Abdominal surgery after traumatic injury is performed for two reasons; bleeding due to injury to vascular structures or a solid organ (e.g., spleen, liver, kidney) or injury due to perforation of a hollow organ (stomach, small intestine, colon, gallbladder). Patients may remain asymptomatic until they have lost 50–60% of their blood volume. Through inspection, auscultation, and palpation, the damaged organs and the presence of hemorrhage should be examined during the physical examination. The findings of peritoneal irritation are incredibly critical. Even though some studies indicate a mortality rate as high as 25.8% for abdominal injuries, the overall mortality rate is 10%. Other studies reveal mortality rates ranging from 15% to 17.1%. It should not be forgotten that the patient with abdominal trauma may have multi-trauma. The patient’s vital signs, abdominal examination, and hematocrit should be checked at frequent intervals. Early surgical evaluation is important. It is important to remember that the main source of bleeding and shock may be the abdomen.

Selections from a 1924 novella by the Turkish writer Hüseyin Rahmi, depicting women and their husbands discussing drinking, dress, and the public lives of women.