• 한국의료질향상학회지
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• 제21권1호
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• pp.12-31
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• 2015

Objectives : The purpose of this study was to develop the qualification system for training of Quality improvement professionals who work for improving patients' safety and healthcare quality. Methods : Based on the various laws and regulations, and the operational status of other professionals' qualification systems, a basic plan of professional qualification system of QI was drawn. And through meetings with QI experts, the final scheme of the concrete qualification system was developed. Results : For management of professionals's certification or qualification, fairness and reliability are important. To do this, setting the official standard, providing a standardized training program and having appropriate qualification test are required. In order to operate the qualification system strategically, 1) the introduction step, 2) dissemination and expansion step, and 3) fusing step should be considered. As a governing body for QI specialists' qualification, 'QI professionals' qualification Center (tentative)' must have the committee to assure fairness, professionalism, and reliability. In addition, 'QI Experts Certification Department (tentative)" to develop standards for the qualification tests and conduct the tests program,' QI experts Education Department (tentative name)" must be able to operate and maintain the QI training for professional qualifications. QI professional qualification exam must be taken by everyone regardless of age, gender, race, occupation, education, and work experience. The examination should include management, leadership, strategic planning and design, quality management, health care information, patient safety culture. Practical training courses can have three step programs; beginning, intermediate and special level. Conclusion : The QI qualification system need strategic approaches for the experts working for healthcare quality improvement and patient safety. It should include the program of standardized contents and test, and operating protocol of the qualificaton system.

• Journal of Preventive Medicine and Public Health
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• 제38권1호
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• pp.53-60
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• 2005

Objectives : To identify the relationship between the internet addiction of adolescents and their Health Promotion Lifestyle Profile and Perceived Health Status, and thereby to detect the impact of internet addiction on the health of adolescents, produce the basic information necessary to develop a prevention program for internet addiction and to plan for a health promotion program. Methods : This study was designed as a cross-sectional study, and the subjects were the second-grade students of three junior-high and three high schools located in the city of K in Kyung Gi Province. Out of 769 subjects, 764 completed the questionnaires (99.3%); 369 (48.3%) junior-high school students and 395 (51.7%) high school students. The questionnaires were composed of Young's Internet Addiction, Health Promotion Lifestyle Profile, Perceived Health Status, and general characteristics. We used t-test, ANOVA in means comparison between groups, X2-test in frequency analysis, and multiple regression analysis in multivariate analysis, using the SAS $8.1^{\circledR}$ program. Results : There was a statistically significant difference in Health Promotion Lifestyle Profile according to internet addiction status (severe addiction vs. other status, p<0.0001). The Perceived Health Status scores was lowest in the severe addiction group (p<0.001). There was also a significant negative correlation between internet addiction and Health Promotion Lifestyle Profile (p<0.0001). The results of multiple regression showed that Young's Addiction Score was significant for the subjects' Health Promotion Lifestyle Profile after controlling for other variables (p<0.0001). Conclusions : This study showed that the severe internet addiction group had the lowest score in Health Promotion Lifestyle Profile and Perceived Health Status, which suggests that the addiction could have a negative effect on the health status of adolescents.

• 한국산업보건학회지
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• 제16권2호
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• pp.183-192
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• 2006

Predicting energy expenditure (EE) is important to prevent work-related musculoskeletal disorders (WMSDs). The problem to predict EE is that the standard of EE is based on western data. The authors checked average EE by job categories to provide basic data for suggesting proper work intensity for Korean workers. This study was conducted from 2003 to 2005. Study subjects were recruited from 4 car parts assembly plant, 2 car assembly plant, 2 Heavy machine manufacturing plant and 2 shipyards. Total study subjects were 515 male workers. To estimate VO2max, sub-maximal test was conducted to measure VO275%max by bicycle ergometer (Combi Co, Aerobike 75XL II). Heartbeats were recorded with heartbeat recorder (Polar Electro Co, Finland, S810) during work. EE of work was calculated by recorded heartbeat and individual regression equation which was derived from sub-maximal test. Subjects were classified into 4 industry and 8 work posture, 23 job task categories. Mean EEs (S.D.) according to industry classification (kcal/min) were 4.9 (0.7), 4.8 (0.7), 4.9 (0.7), 5.0 (0.9), and 4.0 (0.5) for Car Part manufacture, Car Assembly, Ship Building, Heavy Machinery Manufacture, and Hospital Office, respectively. The results suggest that Korean male workers of exceeding to the NIOSH criteria will be needed to plan for job rescheduling to maintain $worker^{\circ}$Øs health. Further study to establish Korean work intensity standard would be needed.

• 한국산학기술학회논문지
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• 제13권5호
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• pp.2023-2029
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• 2012

본 연구의 목적은 LT 협동학습이 학습부진아의 학업성취 및 학습태도에 미치는 효과를 검증하는데 있다. 본 연구의 목적을 달성하기 위하여, 중학교 2학년 2개 학급의 학습부진아들을 대상으로, 8주에 걸쳐서 LT 협동학습과 강의식 수업을 각각 적용한 후, 그 효과를 검증하기 위하여 t검증과 다변량분석을 실시하였다. 연구결과, LT 협동학습은 강의식 수업에 비하여 학습부진아의 학업성취와 학습태도의 증진에 있어 통계적으로 유의한 차이가 있었다. 특히, 학습태도의 하위 변인 중에서 자신감, 성공기대, 주의집중, 열의에서 유의한 차이가 발견되었다. 이러한 연구 결과를 볼 때, LT 협동학습은 강의식 수업에 비해 학습부진아의 학업성취 및 학습태도를 신장시키는데 있어 효과적이며, 특히 학습부진아의 자신감, 성공기대, 주의집중, 열의를 높여주는 교수방법임을 발견할 수 있었다. 따라서 학습부진아들의 학업성취 및 학습태도를 신장시키기 위한 교육프로그램을 계획할 때, LT 협동학습을 적극적으로 적용하려는 다양한 시도가 필요할 것으로 사료된다.

• 한국표면공학회:학술대회논문집
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• 한국표면공학회 2018년도 춘계학술대회 논문집
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• pp.25-25
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• 2018

Electron beam melting (EBM) is one of powder based additive manufacturing technology used to produce parts for high geometrical complexity and directly with three-dimensional computer aided design (CAD) model. It is kind of the most promising methods with additive manufacturing for a wide range of medical applications, such as orthopedic, dental implant, and etc. This research has been investigated the microstructure and mechanical properties of as fabricated and hot iso-static pressing (HIP) processed specimens, which are made by an Arcam A1 EBM system. The Ti-6Al-4V titanium alloy powder was used as a material for the 3 dimensional printing specimens. Mechanical properties were conducted with EBM manufacturing and computer numerical control (CNC) machining specimens, respectively. Surface morphological analysis was conducted by scanning electron microscopy (SEM) for their surface, dissected plan, and fractured surface after tensile test. The mechanical properties were included tensile stress-strain and nano-indentation test as a analysis level between nano and macro. As following highlighted results, the stress-strain curves on elastic region were almost similar between as fabricated and HIP processed while the ductile (plastic deformed region) properties were higher with HIP than that of as fabricated processed.

• 한국의류학회지
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• 제31권8호
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• pp.1262-1272
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• 2007

The purpose of this study was to examine the development trend of smart fiber by textile companies in Daegu/North Gyeongsang Province. This examination includes the development fields of smart fiber, investment size, information sources and the use degree of those, research-related infrastructure, relationship between companies' characteristics and their interests in smart fiber. Research data were collected by a survey. The definition and classification(4 areas and 12 development products) of smart fiber followed ones of Smart Fiber Technology Roadmap by the Ministry of Commerce, Industry and Energy. Data were analyzed using SPSS 11.0 program for frequency, means, t-test, and $X^2$-test. Among respondents, the numbers of dying and finish companies and export traders were the highest. It revealed that 19.6% of companies were developing smart fibers. Within 12 development products, vapor permeable/waterproof fiber showed to be most being developed, while medical fiber for human has not been developed and wasn't made an investment plan for developing. It was discovered that the biggest problem of smart fiber development was the lack of experts and the best outcome of smart fiber development was preoccupation of future market. It showed that companies got information from textile fairs but didn't often use information sources. The companies appeared to have a weak intention about research of smart fiber. The more important a company considered functionality of textile products and the more innovative and stabler the company was, the higher interest in smart fiber companies had. It was concluded that textile companies in Daegu/North Gyeongsang Province were aware of the importance of smart fiber development but they were not strongly interested in it and not enthusiastic in taking action on it.

• 한국직업건강간호학회지
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• 제8권1호
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• pp.42-55
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• 1999

The purposes of this study were to understand health-promoting behavior of client visiting health-promoting center, to identify the major subscales affecting performance in health promoting behavior to facilitate nursing intervention for health promoting of this population and to test Pender's Health Promotion Model. The subjects for this study were 177 sampled among clients from health-promoting center in General Hospital at Teajon. Data was collected by self-reported questionnaires from February 11 to May 22, 1998. Analysis of the data was done by frequency, t-test, ANOVA, Pearson Correlation Coefficient, Stepwise multiple regrssion using SPSS-PC. The results of the study were summarized as follows : 1. The mean score of performance in the health-promoting behavior was 109.22 and range was 71 to 170. The subscale of the highest mean score was self-actualization(30.77) and the subscale of the lowest mean score was exercise(10.50). 2. The most important variable in the health promoting behavior was the perceived self-efficacy. The perceived self-efficacy explained 15.8% of the variance in health promoting behavior. The combination of perceived self-efficacy, perceived barriers, religion, perceived benefits, perceived symptom, and age explained 43.5% of the variance in health promoting behavior. 3. In the relationships between individual characteristics and experience and health promoting behavior, age, religion, the significant differences in the subscale of the health promoting behavior ; sex, educational state, previous occupation, monthly income, marrital state, perceived symptom, and visiting plan of health-promoting center. 4. The health promoting behavior was statistically significant correlated with perceived benefits, perceived barriers, affect related to action, and perceived self-efficacy.

• 한국전문물리치료학회지
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• 제12권1호
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• pp.54-62
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• 2005

The purpose of this study was to find the effects of using aid in enhancing walking ability inpatients with spinal cord injury who have received rehabilitative care. The study population consisted of 24 spinal cord injury patients referred to the Department of Rehabilitation Medicine in the National Rehabilitation Center (NRC). All subjects were ambulatory with or without an assistive devices. All of the participants were assessed on SCIM II, WISCI II, FIM, MBI, gait speed (m/s), and walking endurance (120 min/m). The data were analyzed using a paired t-test, a one-way ANOVA, and a Duncan test. The results revealed that TSCIM II and all of the items of SCIM II of the cervical ASIA D group patients were higher than those of the Thoracic ASIA A and C group patients (p<.05). The FIM, MBI, and WISCI II of the cervical ASIA D group patients were higher than those of the Thoracic ASIA C group patients (p>.05). The walking velocities of the lumbar ASIA C group patients were higher than those of Thoracic ASIA A group patients (p<.05). The walking endurance of the lumbar ASIA C group patients was higher than that of the thoracic ASIA C group patients (p<.05). The ASIA D group patients used bilateral standard canes or crutches, but none used AFO. The ASIA A and C group patients used bilateral standard walkers with KAFO for standing and walking. The findings suggest that injury level as well as the functionality of walking aids should be considered when formulating a rehabilitative plan for patients with spinal cord injury.

• Spatial Information Research
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• 제14권1호
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• pp.57-65
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• 2006

일반적으로 퇴적물 준설에 대한 조사는 GPS/Echo Sounder 및 Total Station/Echo Sounder를 조합한 음파탐사 방법을 이용하여 대상지의 수평위치 및 수심에 대한 관측을 실시하고 있으며, 하상의 단면계산, 저수량 및 준설계획량 등을 추정하게 된다. 이후 준설계획에 대한 계획고 및 준설토량에 대한 세부적인 계획을 수립하게 된다. 하지만 Echo Sounder를 사용하는 음파탐사 방법은 퇴적물에 대한 정확한 분포를 파악할 수 없는 단점이 있다. 본 연구는 저수지 하부의 퇴적물 및 이의 분포를 파악하여 저수지 준설계획을 수립하여 기존의 탐사방법에 대한 준설능력 향상에 중점을 두었다. 또한 기존의 음파탐사 방식과 다른 레이더탐사 장비를 이용한 GPS/GPR(Ground Penetration Radar)을 사용하여 저수지의 수평위치, 수심값을 결정하고 동시에 원지반에 분포하고 있는 퇴적물의 분포를 추정, 준설에 적용하고자 하였다. 우선 현장의 시료채취를 통한 수조모형실험을 실시하여 장비에 대한 정확도 검증을 거친 후 현장적용에 적용하여 그 가능성을 평가하였다.

• 한국수자원학회논문집
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• 제37권8호
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• pp.631-641
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• 2004

본 연구는 개념적 준분포형 모형인 SLURP 모형의 소양강댐유역의 적용가능성에 대해 다루었다. SLURP모형은 강우의 시공간적 변화를 반영하여 강우-유출을 해석하여 관개계획 및 수자원 관리 효과를 판단할 수 있는 준분포형 모형이다. DEM으로부터 지형분석프로그램인 TOPAZ/SLURPAZ와 연계하여 빠르고 쉽게 지형매개변수와 지형자료를 획득할 수 있다. NOAA/AVHRR 위성영상을 이용하여 월별 NDVI를 산출하였으며, 대상유역 주변의 5개의 기상 관측소를 통해 일별 수문기상자료(이슬점, 일사량, 최대ㆍ최소 대기 기온, 상대습도 등)을 얻었다. DEM NDVI, 수문기상자료를 이용하여 1998년부터 2001년까지 4 개년도의 일별유출량을 모의하였다. 매개변수 최적화를 위하여 민감도 분석 및 SCE-UA 방법을 사용하였으며 대상기간의 Nash-Sutcliffe의 모형효율과 WMO 통계량을 통해 소양강댐 유역의 SLURP모형의 적용성을 검증하였다.