• Title/Summary/Keyword: quality maintenance

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Housing Improvement Elements Depended on the Analysis of Urban Residents' Perceived Korean Housing Quality Related to Mental Health (거주자가 지각한 정신건강 관련 주거의 질 분석에 기초한 주거 개선요소)

  • Choi, Byungsook;Park, Jung-A
    • Journal of the Korean housing association
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    • v.24 no.6
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    • pp.189-197
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    • 2013
  • The purpose of the study was to analyze the improvement elements depended on housing quality measurement tool related to mental health. The data for the analysis was collected through questionnaire survey method from November 1, 2012 to January 17, 2013, and the sample consisted of 720 respondents living in single detached houses, multi-families detached houses, apartments, and town houses in 4 cities, Seoul, Busan, Daejeon, and Kwangju. The data were analyzed using descriptive statistics. The results of improvement elements are as follows: 1) Pedestrian-threaten street from cars in physical safety 2) A secluded or dark spot and fear of walking at night in social security, 3) Indoor noise, outdoor noise, and evidence of abandoned trash heap/bottle in neighborhood in health & sanitation, 4) Illegal parking and heating control system in facility convenience, 5) Extra kitchen, number of bathrooms, and community spaces in space convenience, 6) Openness and spaciousness of indoor room, and satisfaction of house and neighborhood in comfort, 7) Management common/sharing space in maintenance, 8) Energy saving facility and environment friendly materials use in sustainability, 9) Burden on housing cost, asset value on house, and school district in economic value, 10) Reflection of residents style, surrounding building's number of layers, and neighborhood appearance of preference in housing environment image.

Effects of Soft Steam Treatments on Quality Characteristics of Potatoes (감자의 품질특성에 대한 저온스팀 열처리 방식의 효과)

  • Cheigh, Chan-Ick;Lee, Jin-Hee;Chung, Myong-Soo
    • The Korean Journal of Food And Nutrition
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    • v.25 no.1
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    • pp.50-56
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    • 2012
  • This paper examines the effects of various methods of soft steaming(i.e., forced convection-boiler, forced convection-fan, and natural convection) on the quality of potatoes. In particular, the paper investigates the effects of cooking conditions (the steaming method, the treatment time, and the temperature) on the color(L, a, b), moisture content, texture profile, and ascorbic acid of potatoes. The results indicate that not only the cooking method, the treatment time, and the temperature but also the heat transfer mechanism had considerable influence on potato quality. In addition, natural convection steaming was superior to other treatment methods in terms of nutrient retention and texture maintenance. The results of this study should be useful for establishing commercial standards for processing potatoes and improving the quality of thermally processed foods.

Water Quality Control System Development for Cooling Towers (냉각탑 수질관리를 위한 자동화 시스템 개발)

  • Lee, Ki-Keon;Song, Moo-Jun;Lee, Young-Jae;Sung, Sang-Kyung;Kang, Tae-Sam
    • Journal of Institute of Control, Robotics and Systems
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    • v.14 no.1
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    • pp.36-41
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    • 2008
  • Cooling tower is an important equipment of the cooling systems for large buildings like factory and department store. Water used for cooling in cooling tower is reused continuously. If the water is polluted, corrosion and scale can happen at equipments and pipes. In order to prevent this problem, it is necessary to control the water quality using chemicals. To control the water quality, an automatic control system is designed, fabricated, and experimented. The control system is based on an imbedded microcontroller. Relays are used for power driving, an LCD and LED for display, and RS485 for remote data acquisition. Monitoring program is also developed for easy man-machine interface and extraction of data stored in the imbedded processor and EEPROM. The control system calculates amounts of chemicals necessary using sensor data and injects the chemicals into the cooling tower on proper time. The developed water quality control system is expected to reduce cost of maintenance and extend the lifetime of the cooling systems with low cost.

The study of evaluation about the apron quality management and shield efficiency in 4 university laboratories of dae-gu, Kyungpook area (방사선(학)과 Apron 성능평가 및 관리 조사-대구, 경북지역 4개 대학교-)

  • Choi, Beom-Hee;Kim, Yong-Gug;Park, Seo-Hyun;Shin, Yong-Il;You, Young-Jun;Kim, Ye-Ri;Park, Chang-Hee
    • Korean Journal of Digital Imaging in Medicine
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    • v.15 no.1
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    • pp.47-54
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    • 2013
  • This study evaluated the apron quality management and shield efficiency in the education laboratory for radiology students. For making a proposal of effective control of lead apron, Eighteen aprons, used in 4 university laboratories of dae-gu, Kyungpook area, were analyzed regarding their uniformities, transmission doses, lead equivalent and shield efficiencies. In conclusion, the lead apron uniformity was generally good. Also, the shield efficiency corresponding to lead equivalent was high. However, the quality control of lead apron was not satisfactory. Since there is a potentially possible chance for students to be exposed to a radiation during practical radiation-training in the education laboratory, the quality-control maintenance of the lead apron should be unceasingly maintained for the radiation protection.

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Comparison of Dietary Self-efficacy, Obesity Stress, and Obesity-related Quality of Life According to BMI and Stages of Change in Vegetable Consumption for Nursing Students (간호대학생의 체질량지수와 채소섭취 행동변화단계별 식이효능감, 비만스트레스, 비만관련 삶의 질 비교)

  • Kim, Myoung Sook
    • The Journal of Korean Academic Society of Nursing Education
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    • v.21 no.1
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    • pp.65-74
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    • 2015
  • Purpose: This study was carried outto compare dietary self-efficacy, obesity stress, and obesity-related quality of life (OQOL) according to BMI and stages of change in vegetable consumption. Methods: A convenience sample of 326 nursing students agreed to complete a questionnaire. Data were collected from October 7 to October 18, 2013. Results: Obesity stress and obesity-related quality of life were significantly different according to BMI. Dietary self-efficacy showed a significant difference between the pre-contemplation/contemplation stage, preparation stage, and action/maintenance stage (F=50.18, p<.001). With obesity stress, there was a significant difference between the PC/C, P, and A/M stages (F=17.63, p<.001). Dietary self-efficacy had a positive correlation with OQOL (r=.11, p<.001) and a negative correlation with obesity stress (r=-.14, p=.012). And obesity stress had a negative correlation with OQOL (r=-.45, p<.001). Conclusion: These findings emphasize that nutritional-intervention programs for changes in behavior during the PC/C and P stages of change in vegetable consumption need to develop strategies to enhance dietary self-efficacy for nursing students.

Literature Review on the Reliability in KSQM for 50 Years (품질경영학회 50주년 특별호: 신뢰성 분야 연구 리뷰)

  • Sung, Si-Il;Kim, Yong Soo;Mun, Byeong Min;Bae, Suk Joo
    • Journal of Korean Society for Quality Management
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    • v.44 no.1
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    • pp.29-42
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    • 2016
  • Purpose: This paper reviews the papers on reliability issues which are published in the Journal of the Korean Society for Quality Management (KSQM) since 1965. The literature review is purposed to survey a variety of reliability issues for several categories Methods: We divide all of reliability issues into 9 categories: acceleration test, reliability estimation, system reliability, software reliability, reliability data collection and analysis method, lifetime distribution, maintenance and warranty strategy, reliability applications, and reliability applications to military area Results: Dividing all of papers on reliability published in KSQM for 50 years into 9 categories, we provide a chronological roadmap for individual categories, and summarize the contents and contributions of surveyed papers Conclusion: The review paper is expected to provide future direction to improve reliaiblity theories and applications in manufacturing and service industries

What is Outcome-Based Education? (제도적인 관점에서 본 성과중심교육)

  • Kim, Bok Ki;Min, Sang Won;Yoon, Woo Young
    • Korean Medical Education Review
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    • v.15 no.1
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    • pp.1-8
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    • 2013
  • Outcome-Based education (OBE) is reviewed from the institutional perspective. The demand for and international trends in OBE are briefly examined and several term related to OBE, especially educational objective and program outcomes (POs), are introduced. It is stressed that systems for continuous quality improvement and quality assurance should be established to ensure the maintenance of the OBE system. Because the criteria for accreditation contain a criterion regarding the quality assurance related to program outcomes, several critical issues are considered regarding the POs themselves and the reduction of the POs. The core value of OBE is not only to provide appropriate education services to students to prepare them with the minimum skills and abilities for advancing their professional service, but also to guarantee the quality of graduates. In addition, the educational program should be continuously improved by employing the evaluation results acquired during the operation of the OBE systems. It is certain that an OBE system is one important aspect of student-centered education.

A Research on Development of Applique Armor Kit for Design of Manufacturing Technology based on the Reverse Engineering (역설계 기반 제조기술 설계를 통한 방탄용 부가장갑킷트 개발에 관한 연구)

  • Ko, Dong Hyeon;Moon, Tae Sang;Kim, Young Ki
    • Journal of Korean Society for Quality Management
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    • v.49 no.3
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    • pp.233-243
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    • 2021
  • Purpose: The study focused on localization of the enhanced applique armor kit (EAAK), which are applied to Korea Assault Amphibious Vehicle (KAAV). Methods: For this propose, we developed the manufacturing technology by analyzing the original products. Considering the conditions used in the military, we made the test evaluation criteria. Results: In results, The EAAK developed through this research performs equivalent performance compared to Rafael, Co. Thus, It is possible not only stably supply a parts of EAAK for maintenance, but also to reduce costs due to import substitution effect. Conclusion: It is expected that the manufacturing technology and test evaluation criteria accumulated through this study can be used in the localization of similar parts.

The effect of fibroblast growth factor receptor inhibition on resistance exercise training-induced adaptation of bone and muscle quality in mice

  • Cho, Suhan;Lee, Hojun;Lee, Ho-Young;Kim, Sung Joon;Song, Wook
    • The Korean Journal of Physiology and Pharmacology
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    • v.26 no.3
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    • pp.207-218
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    • 2022
  • Aging in mammals, including humans, is accompanied by loss of bone and muscular function and mass, characterized by osteoporosis and sarcopenia. Although resistance exercise training (RET) is considered an effective intervention, its effect is blunted in some elderly individuals. Fibroblast growth factor (FGF) and its receptor, FGFR, can modulate bone and muscle quality during aging and physical performance. To elucidate this possibility, the FGFR inhibitor NVP-BGJ398 was administrated to C57BL/6n mice for 8 weeks with or without RET. Treatment with NVPBGJ398 decreased grip strength, muscular endurance, running capacity and bone quality in the mice. FGFR inhibition elevated bone resorption and relevant gene expression, indicating altered bone formation and resorption. RET attenuated tibial bone resorption, accompanied by changes in the expression of relevant genes. However, RET did not overcome the detrimental effect of NVP-BGJ398 on muscular function. Taken together, these findings provide evidence that FGFR signaling may have a potential role in the maintenance of physical performance and quality of bone and muscles.

Auto Qualification Test Guide of Control Loading System for Flight Simulation Training Device (모의비행훈련장치용 조종반력시스템의 자동-QTG 구현)

  • Chun-Han Hong;Won-Seok Shin;Sang-Jin Jung;Byeong Soo Kim
    • Journal of the Korean Society for Aviation and Aeronautics
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    • v.32 no.2
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    • pp.11-19
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    • 2024
  • Flight simulators are crucial devices for aircraft piloting training and simulation, requiring regular inspections to maintain performance and operational quality. This study explores the development of an automated inspection system for flight simulators to automate quality inspections of control loading systems (CLS). While quality inspection of the control loading system (CLS) is essential for flight simulators, manual inspections are common practice. To address this, we developed an Auto Qualification Test Guide (Auto QTG) using artificial control logic and sensor data and applied it to the militarily simulator. Experimental results demonstrate that Auto QTG successfully automates quality inspections of CLS, enhancing accuracy and efficiency. This automated inspection system is expected to contribute to improving the operation and maintenance of flight simulators.