• 한국원자력학회:학술대회논문집
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• 한국원자력학회 1996년도 추계학술발표회논문집(1)
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• pp.415-420
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• 1996

The main objective of the present study is to propose a new measure of uncertainty importance based on distributional sensitivity analysis. The new measure is developed to utilize a metric distance obtained from cumulative distribution functions (cdfs). The measure is evaluated for two cases: one is a cdf given by a known analytical distribution and the other given by an empirical distribution generated by a crude Monte Carlo simulation. To study its applicability, the present measure has been applied to two different cases. The results are compared with those of existing three methods. The present approach is a useful measure of uncertainty importance which is based on cdfs. This method is simple and easy to calculate uncertainty importance without any complex process. On the basis of the results obtained in the present work, the present method is recommended to be used as a tool for the analysis of uncertainty importance.

• 한국사회복지학
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• 제62권4호
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• pp.5-32
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• 2010

사회복지실천기술은 사회복지실천의 3대 요소 중의 하나임에도 불구하고 이에 대한 연구는 매우 부족하다. 그 이유는 사회복지사의 사회복지실천기술 활용을 측정할 수 있는 도구의 부재와도 관련이 있다. 본 연구는 이러한 문제를 인식하고 사회복지사들이 실천현장에서 사용하는 실천기술이 어떤 것이고 어느 정도인지를 측정할 수 있도록 하기 위하여 한국어판 Practice Skills Inventory(PSI)를 개발하고 평가하는 목적을 갖고 수행되었다. 임상현장에서 활동하는 의료사회복지사와 정신보건사회복지사 310명을 대상으로 한국어판 PSI를 평가한 결과 한국어판 PSI도 영어판 PSI와 마찬가지로 4개 요인으로 구성된 척도로 확인되었다. 또한, 한국어판 PSI는 양호한 수준의 신뢰도와 타당도를 가지고 있는 것으로 평가되어 비록 PSI가 외국에서 개발된 척도이나 국내 사회복지사의 사회복지실천기술을 측정하는데 유용한 도구임이 입증되었다. 마지막으로 사회복지 연구, 실천, 교육을 위한 함의가 제공되었다.

• 대한인간공학회지
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• 제25권3호
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• pp.61-66
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• 2006

Awkward work postures in workshop highly affect on work-related musculoskeletal disorders(WMSDs). Especially, in automobiles assembly process, these awkward work postures of workers may cause serious injury and illness. This study is to compare the performance among the evaluation tools which can measure the work-loads caused by the awkward work postures in automobiles assemble process. RULA, REBA and TVAL(Toyota Verification of Assembly Line) are used as the evaluation tools. The 85 jobs selected in the automobiles assembly process are applied to the three tools and their performances are analyzed after the evaluation of the work-load in each job. Through various measures of performance such as statistical test, DUNCAN test, regression test etc., the tendencies and characteristics among them are analyzed in detail.

• Safety and Health at Work
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• 제11권2호
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• pp.178-186
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• 2020

Background: Cognitive impairment is a public health burden. Our objective was to investigate associations between work hours and cognitive function. Methods: Multi-Ethnic Study of Atherosclerosis (MESA) participants (n = 2,497; 50.7% men; age range 44-84 years) reported hours per week worked in all jobs in Exams 1 (2000-2002), 2 (2002-2004), 3 (2004-2005), and 5 (2010-2011). Cognitive function was assessed (Exam 5) using the Cognitive Abilities Screening Instrument (version 2), a measure of global cognitive functioning; the Digit Symbol Coding, a measure of processing speed; and the Digit Span test, a measure of attention and working memory. We used a prospective approach and linear regression to assess associations for every 10 hours of work. Results: Among all participants, associations of hours worked with cognitive function of any type were not statistically significant. In occupation-stratified analyses (interaction p = 0.051), longer work hours were associated with poorer global cognitive function among Sales/Office and blue-collar workers, after adjustment for age, sex, physical activity, body mass index, race/ethnicity, educational level, annual income, history of heart attack, diabetes, apolipoprotein E-epsilon 4 allele (ApoE4) status, birth-place, number of years in the United States, language spoken at MESA Exam 1, and work hours at Exam 5 (β = -0.55, 95% CI = -0.99, -0.09) and (β = -0.80, -1.51, -0.09), respectively. In occupation-stratified analyses (interaction p = 0.040), we also observed an inverse association with processing speed among blue-collar workers (adjusted β = -0.80, -1.52, -0.07). Sex, race/ethnicity, and ApoE4 did not significantly modify associations between work hours and cognitive function. Conclusion: Weak inverse associations were observed between work hours and cognitive function among Sales/Office and blue-collar workers.

• 드라이브 ㆍ 컨트롤
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• 제14권1호
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• pp.35-40
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• 2017

Whereas fuel economy of a vehicle is measured using a chassis dynamometer, that of construction machinery such as an excavator shall be presumably measured using simulated work cycle. In order to measure fuel consumption under a simulated work cycle, a measurement methodology, while excavator operates in dynamic(transient) motion, needs to be examined and developed. In this work, three methods (gravimetry, ECU CAN signal and mass flow meter) are studied and compared. This work reveals that when ECU CAN signal is properly calibrated and evaluated, compared to gravimetry or mass flowmeter, it could be used to measure fuel consumption with accuracy and thus for approval of the fuel economy of construction machinery.

• 한국멀티미디어학회논문지
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• 제21권12호
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• pp.1481-1492
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• 2018

Musculoskeletal disorders show symptoms of pain and dysfunction caused by accumulation of minute damage on nerves and blood vessels which are related to specific body parts. This is more likely to occur in the elderly. In Korea, 40.3% of the agricultural population is over 65 years old. In these cases, the portion of musculoskeletal disorders is more than 80% in acute/chronic diseases related to agricultural work. Therefore, measures for physical health care and safety prevention of elderly farmers are needed. In this study, we intend to propose a method to measure musculoskeletal health condition through the motion recognition device and VR contents. For this, we analyze the agricultural work causing musculoskeletal disorders of farmers, and suggest a motion analysis algorithm that can measure the health condition of the musculoskeletal system. In addition, we are going to propose a training method customized for farmers on the basis of VR contents in order to prevent musculoskeletal disorders.

• 기술사
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• 제22권4호
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• pp.35-39
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• 1989

• 대한인간공학회지
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• 제31권1호
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• pp.157-163
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• 2012

Objective: This study is to understand medical management method in shipbuilding industry. Background: In shipbuilding industry, medical management for prevention of work-related musculoskeletal diseases due to limitations of engineering measures may be important measure. Results: Medical management of musculoskeletal diseases can be divided into primary, secondary, tertiary preventions. Primary preventions consist of symptom survey, appropriate work placement with work capacity evaluation, health promotion. Second preventions are early detection of symptomatic patient and appropriate treatment. Tertiary preventions are rehabilitation treatment and early return-to-work by return-to-work evaluation. In addition, patients with psychological counseling for emotional problems are needed. Conclusion: Medical management measures such as improving the work environment to be made are expected to exert greater effects.

• 대한간호학회지
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• 제15권3호
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• pp.39-49
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• 1985

The study was carried out to measure the degree of work stress among clinical nurses, and to identify factors influencing the work stress. Data was collected from 215 staff nurses working in the Seoul National University Hospital from the end of February to first of march, 1984. The results and suggestion of study were: 1. Nurses perception of work stress. 1) Mean score of total work stress of nurses was 4.467, when maximum score was 6. High degree of work stress is evident among nurses. 2) The highest rank of stress factor was inter-personal relationship with physicians, night duty, heavy work load, inadequate working condition and payment were other stress factors. 2. Relationships between situational variables and degree of stress. There was significant correlation-ship between nurse's total work stress score and educational levels (r=0.153, p=0.032).

• The Journal of Korean Physical Therapy
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• 제2권1호
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• pp.65-74
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• 1990

This study was carried out to measure the degree of work-related stress and to identify factors influencing the excessive stress among clinical physical therapists. One thousand and five physical therapists surveyed nationwide met the established criteria for inclusion in the study. The respondents were an average age of 27.1 years, $34.5\%$ were married, and $61.2\%$ were female. Most of the respondent $(48.1\%)$ worked in local clinics. The average stress score was 50.9. Analysis-of-variance test demonstrated significant difference in the degree of stress among treatment facilities. There was a significant relationship between treatment facilities (general hospital, local hospital, clinic), number of patients treated per day, job satisfaction, low back pain and work-related stress, respectively. Work-related stress was unrelated to matters of sex, marital status, education. Hospital administrators, physical therapydirectors, directors, and individual therapists should work within their organizations to reduce work stress and its detrimental effects. Further research is necessary to investigate preventive measures to decrease the work-related stress.