• 한국건설순환자원학회지
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• 제17권1호
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• pp.22-27
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• 2022

• 대한교통학회지
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• 제29권6호
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• pp.75-83
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• 2011

본 연구에서는 항공화물 서비스 경쟁력 평가 요소 및 중요도를 결정하고, 실제 항공화물 운송사에 대한 서비스 품질을 평가하고자 한다. 항공화물 서비스에 대한 평가 대상을 Skyteam의 주요 화물 서비스 상품인 Equation Heavy, Equation, Variation, Dimension로 정하였고, 이 서비스 상품에 대한 품질 평가를 실행하였다. 본 분석은 전문가 설문 조사, AHP 및 퍼지적분(Fuzzy Integral) 등의 방법론들을 적용하였고, 선행 연구와 전문가 인터뷰, 그리고 요인분석을 통해 주요 평가요소를 추출하여 서비스 품질 평가모형을 구축하였다. 주요 평가요소는 인프라, 신뢰성, 신속 대응성, 경제성, 안전성 요소 등을 설정하였다. 이 다섯 가지 요소를 바탕으로 하여 수게노(Sugeno)가 제안한 퍼지 적분 방법론에서 파생된 알고리즘을 적용하여 최종으로 화물 서비스 품질을 분석하였다.

• PNF and Movement
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• 제20권3호
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• pp.341-349
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• 2022

Purpose: The purpose of this study is to compare the muscle activity of the hip abductors and the ratio between the hip abductor muscle group according to the range of hip abduction during the clam exercise. Methods: This study was conducted on 18 healthy men in their aged 20 to 29 who had not been diagnosed with spine-related diseases. The subjects performed a clam exercise without rotation of the pelvis in a state of 60° hip flexion and 90° knee joint flexion in the side-lying position. Using Myomotion equipment and EMG, the muscle activity of the hip abductor muscles and the activity ratio between the hip abductor muscle group were measured during the clam exercise by dividing the range into initial, mid-range, and terminal sections. Repeated measures analysis of variants was employed to compare the activity and use of hip abductor muscles according to range of motion during the clam exercise. Results: Gluteus medius muscle activation was significantly increased in the comparison of muscle activity in the initial, mid-range, and terminal sections of hip abduction. Tensor fasciae latae muscle activation was significantly increased in the comparison of muscle activity in all range of motion sections as well. The gluteus medius-tensor fasciae latae muscle activation ratio was significantly increased in the terminal section compared to the initial section. Conclusion: The gluteus medius and tensor fasciae latae had higher muscle activities as they approached the terminal section during the clam exercise, and the hip abduction activity ratio of the gluteus medius and tensor fasciae latae was higher as the range of motion approached the terminal section.