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성규진,류학현,박성수,강병재,임성준,김용선,이승훈,조성호,김준영,윤정희,김완희,권오경 한국임상수의학회 2010 한국임상수의학회지 Vol.27 No.6
Outcomes of non-surgical and surgical treatments for thoracolumbar intervertebral disc disease (IVDD) are well-reported. However, little is known regarding the outcome for treatments of cervical IVDD. This study systematically reviewed the outcomes in dogs with cervical IVDD that were managed non-surgically and surgically. Clinical success rates for surgical treatment were significantly higher (100%) than for non-surgical treatment (51.4%). In the non-surgical treatment group, clinical success rates were negatively correlated with spinal cord compression rates. Based on the results of this study, surgical treatment is deemed more effective than non-surgical treatment for dogs with cervical IVDD. Also, the degree of spinal cord compression on computed tomography or magnetic resonance imaging is a useful prognostic indicator before non-surgical treatment.
데이터 bagging을 활용한 링 타입 Auto Tool Changer shaft의 가속 수명 인자 적정성 평가에 관한 연구
강세찬(Se-Chan Kang),김성재(Seong-Jae Kim),성규진(Gyu-Jin Seong),윤도환(Do-Hwan Yoon) 한국기계가공학회 2023 한국기계가공학회지 Vol.22 No.2
Machine tools that are capable of large-scale complex processing are in high demand. However, the drum-type ATC, currently being used, has difficulty in maintaining rigidity due to the increased weight of the tool. Thus, a ring-type ATC that would provide rigidity while reducing costs is considered. The tool replacement shaft of the cam box, one of the main components of ATC, is greatly affected by the increase in tool weight and load acting in various directions. Thus, its fatigue life should be considered. A life test can be conducted to determine its fatigue life, but because the required life is long, the test takes a considerable amount of time. This problem can be solved by using the accelerated life test, but the parameter data required to perform the test are insufficient. In this study, we present a structural analysis of the cambox shaft, derive the shape parameters required for an accelerated life test, and confirm that the parameters derived using data bagging techniques are accurate.