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상생형 스마트공장 도입기업과 미도입기업의 성과분석에 관한 연구
황중하,김태성 대한안전경영과학회 2024 대한안전경영과학회지 Vol.26 No.1
A Smart factories are systems that enable quick response to customer demands, reduce defect rates, and maximize productivity. They have evolved from manual labor-intensive processes to automation and now to cyber-physical systems with the help of information and communication technology. However, many small and medium-sized enterprises (SMEs) are still unable to implement even the initial stages of smart factories due to various environmental and economic constraints. Additionally, there is a lack of awareness and understanding of the concept of smart factories. To address this issue, the Cooperationbased Smart Factory Construction Support Project was launched. This project is a differentiated support project that provides customized programs based on the size and level of the company. Research has been conducted to analyze the impact of this project on participating and non-participating companies. The study aims to determine the effectiveness of the support policy and suggest efficient measures for improvement. Furthermore, the research aims to provide direction for future support projects to enhance the manufacturing competitiveness of SMEs. Ultimately, the goal is to improve the overall manufacturing industry and drive innovation.
자동차부품기업 품질경영 요인이 기업성과에 미치는 영향도 분석 연구
황중하,김태성 한국컨설팅학회 2023 컨설팅융합연구 Vol.3 No.3
본 연구는 대구와 경북 지역의 전자 및 자동차 부품 제조 중소기업을 대상으로, ISO 9001 품질경 영시스템(QMS) 인증 후 품질경영활동과 정착활동이 경영성과에 미치는 영향을 조사하고 개선 방안을 모색하 는 것을 목적으로 하였습니다. 연구 결과에 따르면, 품질경영시스템의 요소인 지원, 성과평가, 개선은 경영성과 에 직접적인 영향을 미치지 않았습니다. 그러나 리더십과 운영에 대한 품질경영시스템과 정착활동은 경영성과 에 유의미한 영향을 미쳤으며, 규제효과 역시 경영성과에 영향을 미쳤습니다. 이러한 연구 결과는 중소기업의 품질경영시스템 도입과 운영이 경영성과에 긍정적인 효과를 가져올 수 있다는 것을 시사 합니다. 따라서, 중소 기업은 리더십 강화와 운영 중점에 초점을 맞춘 품질경영시스템과 정착활동을 통해 경영성과를 개선할 수 있 을 것으로 기대됩니다. The purpose of the study is to understand the impact of small and medium-sized enterprises' quality management system introduction and establishment activities on business performance and to suggest solutions. A survey was conducted targeting electronic and automobile parts manufacturing companies located in Daegu and Gyeongbuk. The research results are as follows: First, support, performance evaluation, and improvement of quality management system elements did not affect management performance. Second, the quality management system and establishment activities (participation), which are internal elements, have a significant impact on leadership and operation, and have also had a significant impact on leadership, operation, performance evaluation, and improvement according to management performance. Third, quality management system establishment activities (QMS training) showed significant results in leadership and operation, and leadership, operation, performance evaluation, and improvement had a significant impact on management performance. These results show that the introduction and operation of a quality management system in small and medium-sized businesses leads to quality management activities and has a positive impact on business performance. The purpose of this study is to suggest directions for improving management performance and settlement activities after establishing a quality management system for small and medium-sized enterprises in the future.
답차 및 자전거 Ergometer 운동부하검사의 비교관찰
김경호(Kyung Ho Kim),황중하(Joong Hwa Hwang),이주형(Joo Hyung Lee),배현혜(Hyun Hae Bae),이호영(Ho Young Lee),김용민(Yong Min Kim),김현수(Hyeon Su Kim),이순규(Soon Gyu Lee),이병기(Byung Ki Lee),이중기(Choong Ki Lee),박희명(Hi Myung Pa 대한내과학회 1995 대한내과학회지 Vol.49 No.4
N/A Objectives: For the evaluation of cardiopulmonary endurance, treadmill (TM) and bicycle ergometer (EG) are the most commonly used modes of exercise testing, and the results obtained by these two modes are known to be different. However, it is still controversial that which parameters are how much different. The purpose of our study is to compare two modes of testing in healthy subjects. Methods: Sixty-nine healthy subjects consisting of 34 males and 35 females participated in the study. All the subjects underwent symptom-limited maximal exercise tests by both TM and EG modes at an interval of less than seven days. The TM tests were done by Bruce protocol in both genders, and in the EG tests, work load was increased by 25 watts once every minute for males and 15 watts for females. Results: The maximal heart rate, oxygen uptake and oxygen pulse (HR max, VO2 max & O2 pulse max) by the TM mode of testing were significantly greater than those by the EG mode in both genders, particularly in females. The differences in HR max were approximately 7% and 9% in males and females, respectively, whereas those in VO2 max and O2 pulse max were 11-25%. The VO2, max by TM and EG modes showed highly significant correlation. At maximal exercise, the minute ventilation was significantly different between the two modes, and VE by the TM mode was approximately 15% and 22% greater than by the EG mode in males ad females, respectively. Among variables reflecting ventilatory reserves at maximal exercise, the ratio of VE. max to maximal voluntary ventilotion (MVV) in ;he TM mode was approximately 15% and 22% greater in males and females, repectively. The breathing reserve (MVV-VE max) in the EG mode was approximately 79% and 147% greater in males and females, repectively. The results of these two variables, VE max/MVV and MUV-VE max, are explained by the more marked increase in VE max by the TM mode and denote that the ventilatory reserve capacity at maximal exercise is greater in the EG mode. Conclusion: Our study reveals that the TM mode of maximal exercise testing induces more pronounced cardiopulmonary responses than the EG mode, particularly in females. And this is well manifested by the facts that VO2 max, O2. pulse max and VE- max obtained by the TM mode of testings are 10% or more than those by the EG mode. The HR max by the TM mode was also greater than that by the EG mode in both genders, but its difference was less than 10%.