• 수산해양교육연구
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• 제28권6호
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• pp.1614-1628
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• 2016

The purpose of this study was to examine the relationship between the safety awareness and safety practice of international marriage woman in Kimhae and Changwon city. We carried out a questionnaire survey that was targeted at 138 subjects. Data collected were analyzed with SPSS 21.0 statistical program. Analysis methods were t-test, one way ANOVA, Scheffe test, Perarsons correlation coefficient, and multiple linear regression. The results were as follows. First, safety awareness point was an average of 4.10 point which was higher level. Safety practice point was an over intermediate level of an average of 3.23 point. Second, safety awareness had statistically significant difference according to age, year of Korea residence, born Nation, whether or not Korean citizenshilp, monthly income, temper, satisfaction of marriage. Third, safety practice had statistically significant difference according to housing, monthly income, health state, satisfaction of marriage. Fourth, safety Practice had a positive correlation with home safety awareness, traffic safety awareness, fire safety awareness, and emergency care awareness. Therefore, a higher safety awareness results in having a very well safety practice. Fifth, International Marriage Women from Japan had the highest the level in the Safety Awareness and Safety Practice. From now on, two cities should have a major concern for safety education of fire and emergency care. And the safety education based on learning need analysis need to be done substantially.

• Safety and Health at Work
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• 제10권1호
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• pp.95-102
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• 2019

Background: In a cluster-randomized trial, the Safety and Health Involvement For Truck drivers intervention produced statistically significant and medically meaningful weight loss at 6 months (-3.31 kg between-group difference). The current manuscript evaluates the relative impact of intervention components on study outcomes among participants in the intervention condition who reported for a post-intervention health assessment (n = 134) to encourage the adoption of effective tactics and inform future replications, tailoring, and enhancements. Methods: The Safety and Health Involvement For Truck drivers intervention was implemented in a Web-based computer and smartphone-accessible format and included a group weight loss competition and body weight and behavioral self-monitoring with feedback, computer-based training, and motivational interviewing. Indices were calculated to reflect engagement patterns for these components, and generalized linear models quantified predictive relationships between participation in intervention components and outcomes. Results: Participants who completed the full program-defined dose of the intervention had significantly greater weight loss than those who did not. Behavioral self-monitoring, computer-based training, and health coaching were significant predictors of dietary changes, whereas behavioral and body weight self-monitoring was the only significant predictor of changes in physical activity. Behavioral and body weight self-monitoring was the strongest predictor of weight loss. Conclusion: Web-based self-monitoring of body weight and health behaviors was a particularly impactful tactic in our mobile health intervention. Findings advance the science of behavior change in mobile health intervention delivery and inform the development of health programs for dispersed populations.

• 한국식품위생안전성학회지
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• 제34권4호
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• pp.380-387
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• 2019

여러 규모의 가정간편식 제조업체를 대상으로 설문조사를 통해 업체의 식품안전문화를 수행 정도와 각 업체들이 식품안전문화 요소들에 대해 인식하는 중요도를 조사하고, 식품안전문화 측정요소들이 HACCP 선행요건프로그램을 수행하는데 미치는 영향 수준을 분석하였다. 식품안전문화의 측정은 기업문화, 경영진의 의지, 교육 훈련 및 종업원의 참여 등 식품안전문화의 5개 요소를 지표로 평가하였다. 식품안전문화 요소가 HACCP 선행요건프로그램의 수행도에 미치는 영향은 로지스틱 회귀 분석을 실시하여 분석하였다. 식품안전문화 요소의 수행도는 기업문화, 종업원의 참여 부분에서는 업체 규모에 따른 유의적 차이가 나타나지 않았으나(p>0.05) 경영진의 의지, 자원의 투입, 교육 훈련의 경우 대규모업체에서 유의적으로(p<0.05) 높았다. 한편 기업의 문화는 대규모업체에서는 중요도가 높다고 인식하고 있었으나 소규모업체에서 중요성에 대한 인식도가 매우 낮아 업체 규모에 따른 인식도의 불균형을 보여주었다. 식품안전문화 요소들이 기업의 HACCP 선행요건프로그램의 수행도에 미치는 영향을 조사한 결과 '종업원의 교육 훈련'이 HACCP 수행도에 통계적으로 유의하게(p=0.043) 영향을 미치는 식품안전문화 요소로 나타나 HACCP 내실을 기하기 위해서는 종업원들에 대한 교육 훈련이 매우 중요함을 시사하였다.

• 한국산업보건학회지
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• 제18권3호
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• pp.185-188
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• 2008

Objectives: The purpose of this study is to analyze the occupational safety and health(OSH) state of precarious employee. Methods: The questionnaire of this survey is composed of 9 categories that are the workplace general information and the state of occupational injury and disease, OSH organization, OSH education and training. The subjects of this survey were the Manufacturing. The hypothesis of this study is where the proportion of precarious employee is higher, the OSH state is worse. To verify this hypothesis, we grouped the subjects into three categories by the proportion of precarious employee like as 0%(all standard employee), less than 30% and 30% or more. Using the SPSS 12.0 program to analyze the data, logistic regression analysis were implemented to find affective factors for the rate of occupational injury and disease. Results: 2,633 manufacturing workplaces were included for subjects. The proportions of precarious employee were 9.6 %. In manufacturing industry, about 70 % companies had no precarious employee. 16.8 % companies were in less than 30 % group, 13.2 % companies were in 30% or more group. For the rate of occupational injury and disease, the precarious group were 0.85(${\pm}1.8$), 1.19(${\pm}2.9$), 0.59(${\pm}1.1$). There was a trend that the higher precarious proportion groups was the higher rate of occupational injury and disease by the logistic regression analysis. It is more strong relationship than company size and OSH committee. Conclusions: We could find a significant result there was a positive relationship between the hiring proportion of precarious employee and the rate of occupational injury and disease in manufacturing industry with 50 employees and more.

• Nuclear Engineering and Technology
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• 제53권9호
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• pp.3085-3099
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• 2021

Investigations of large commercial aircraft impact effect on nuclear power plant (NPP) buildings have been drawing extensive attentions, particularly after the 9/11 event, and this paper aims to numerically assess the damage and vibrations of NPP buildings subjected to aircrafts crash. In Part I of present paper, two shots of reduce-scaled model test of aircraft impact on NPP were conducted based on the large rocket sled loading test platform. In the present part, the numerical simulations of both scaled and prototype aircraft impact on NPP buildings are further performed by adopting the commercial program LS-DYNA. Firstly, the refined finite element (FE) models of both scaled aircraft and NPP models in Part I are established, and the model impact test is numerically simulated. The validities of the adopted numerical algorithm, constitutive model and the corresponding parameters are verified based on the experimental NPP model damages and accelerations. Then, the refined simulations of prototype A380 aircraft impact on a hypothetical NPP building are further carried out. It indicates that the NPP building can totally withstand the impact of A380 at a velocity of 150 m/s, while the accompanied intensive vibrations may still lead to different levels of damage on the nuclear related equipment. Referring to the guideline NEI07-13, a maximum acceleration contour is plotted and the shock damage propagation distances under aircraft impact are assessed, which indicates that the nuclear equipment located within 11.5 m from the impact point may endure malfunction. Finally, by respectively considering the rigid and deformable impacts mainly induced by aircraft engine and fuselage, an improved Riera function is proposed to predict the impact force of aircraft A380.

• Nuclear Engineering and Technology
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• 제39권4호
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• pp.287-298
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• 2007

As part of the $AP1000^{TM}$ pressurized water reactor design certification program, a series of integral systems tests of the nuclear steam supply system was performed at the APEX-1000 test facility at Oregon State University. These tests provided data necessary to validate Westinghouse safety analysis computer codes for AP1000 applications. In addition, the tests provided the opportunity to investigate the thermal-hydraulic phenomena expected to be important in AP1000 small-break loss of coolant accidents (SBLOCAs). The APEX-1000 facility is a 1/4-scale pressure and 1/4-scale height simulation of the AP1000 nuclear steam supply system and passive safety features. A series of eleven tests was performed in the APEX-1000 facility as part of a U.S. Department of Energy contract. In all, four SBLOCA tests representing a spectrum of break sizes and locations were simulated along with tests to study specific phenomena of interest. The focus of this paper is the SBLOCA tests. The key thermal-hydraulic phenomena simulated in the APEX-1000 tests, and the performance and interactions of the passive safety-related systems that can be investigated through the APEX-1000 facility, are emphasized. The APEX-1000 tests demonstrate that the AP1000 passive safety-related systems successfully combine to provide a continuous removal of core decay heat and the reactor core remains covered with considerable margin for all small-break LOCA events.

• 대한인간공학회지
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• 제32권2호
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• pp.199-205
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• 2013

Objective: The aim of this study is to investigate the job rotation implementation at medium- or small-industries and to identify the viewpoint on job rotation as preventive activity of work-related musculoskeletal disorders(WMSDs). Background: Job rotation has been implemented in many industrial areas in order to prevent the WMSDs as one part of ergonomic program. Generally, the cases of implementation of ergonomic program or successful cases of job rotation were reported on the side of major or large company. Therefore, this study tried to inspect the current state of job rotation implementation at medium- or small-industries. Method: Survey was carried out for randomly contacted forty seven mangers responsible for safety. Survey contained the questionnaires on the general state of company, shift-work and job rotation. Results: The ratio of work-shift in medium- and small-industry was 34.0% and the ratio of job rotation was 19.1%. For manufacturing industry, the ratio was 37.9% and 17.2%, respectively. Conclusion: The implementation ratio of job rotation was relatively low considering the results of previous studies. Many managers appealed the quality decreasing of goods and the injuries of workers due to job rotation, though agreed to train the multi-functional worker and to prevent the WMSDs. Application: The results can be used for the fundamental data how the job rotation will be properly implemented in medium- and small-industry as an administrative control for MSDs.

• 대한간호학회지
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• 제44권5호
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• pp.534-541
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• 2014

Purpose: This study was done to examine the actual state of influenza vaccination among pregnant women and factors affecting vaccination rate. Methods: Data were collected using self-report questionnaires. Participants were pregnant women who participated in a prenatal education program at an acute care hospital in 2013. Data collected from 218 pregnant women were analyzed using the SPSS 18.0 Program. Results: Only 48.6% of the pregnant women had received vaccination when the influenza was prevalent. Statistically significant factors affecting the influenza vaccination rate among pregnant women were vaccination experience in the previous year, knowledge and attitude about vaccination, and gestation period. Conclusion: Results indicate that the influenza vaccination rate among pregnant women is lower than that of elders, healthcare workers, and patients with chronic diseases, who have been considered to be the mandatory vaccination recipients. Therefore, it is necessary to develop programs and policies which provide information including safety of vaccines for pregnant women and to induce positive attitudes towards vaccination for these women, in order to ultimately improve the vaccination rate.

• 한국지반신소재학회논문집
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• 제11권4호
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• pp.71-77
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• 2012

본 연구에서는 지반구조물에서 수집된 계측데이터를 대상으로 확률통계적 방법을 사용한 상태평가를 위한 분석기법과 자동화 프로그램을 개발하였다. 복잡한 지반구조물에 설치한 계측시스템으로부터 수집된 계측자료의 평가를 위해서는 자료처리(data driven) 기반의 비모수적(non-parametric) 모델링 방법이 유용할 것으로 판단된다. 실제 지반구조물(보강토옹벽 및 터널)에서 수집된 센싱 데이터를 이용하여 개발된 평가기법의 검증을 실시한 결과 환경적 요인과는 구별되는 구조적 거동을 확인할 수 있었다.

• 대한기계학회논문집A
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• 제22권1호
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• pp.148-159
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• 1998

Spot welding palys a key role in increasing productivity and weight reduction of the final products. This paper proposes a systematic approach on the design of spot weld configuration, dealing with the requried number and location of spot weld joints under the given design parameters, such as the applied loads, lap area, and individual spot weld strength. The optimal design of a spot-welded joint is postulated as a state when the safety factors of all spot weld points (i) are evenly distributed and (ii) reach maximum value. A CAD program is developed to arrange the optimal location of each spot weld based on the derived objective function and constraints. The CAD tool integrates the optimization procedure with Finite Element Analysis (FEA) code through an interface. The interface automatically provides geometrical data and mesh configuration for different spot weld locations to FEA model. It also extracts the transmitted load of each spot weld from the FEA code, and allows the optimization code predict an improved arrangement of spot weld locations. The feasibility of the developed approach is demonstrated by the selected examples.