• 지역사회간호학회지
• /
• 제15권1호
• /
• pp.110-121
• /
• 2004

Purpose: This study was performed to identify factors associated with drinking behavior using Transtheoretical Model in workers. Method: The study method was a survey of 216 marine shipping metal workers in Koje city from November 11, 2002 to November 30, 2002. Result: The subjects were divided in four stages of drinking behavior: 38.9% in pre contemplation stage, 38.6% in contemplation stage, 17.6% in preparation stage and 7.9% in action & maintenance stage. The amount of drinking was significantly decreased as the workers progressed through each stage. Helping relationships(HR) and Self reevaluation(SR) were identified as the main processes of change in all stages. Self liberation(SEL), Counter conditioning(CC), Helping relationships(HR), Self reevaluation(SR), Dramatic relief (DR) and Social liberation(SL) were used higher than average. The self efficacy score increased as the workers progressed through each stage, but not significantly. The Pros score of decisional balance was the highest in the pre contemplation stage and decreased as the workers progressed through each stage. but not significantly. The Cons score of decisional balance was the highest in the preparation stage, but not significantly in as the workers progressed through each stage. Conclusion: This study can provide the basis of a staged matching alcohol reducing program using TTM for more effective and useful intervention.

• 대한토목학회논문집
• /
• 제11권1호
• /
• pp.167-176
• /
• 1991

본 연구에서는 기존의 구성 모델인 hyperbolic모델과 Cam-clay모델을 적용하는 유한요소해석 프로그램을 개발하였다. hyperbolic모델에서는, 전단중의 체적 변형을 고려하는 새로운 모델을 제시하였으며, 또한 기초 아래 지반의 밀도 증가로 인한 매개 변수값의 변화를 고려하는 새로운 개념을 제안하고자 했다. 이와 더불어 보다 타당하다고 생각되는 계산 알고리즘을 제안하였다. 또한 Cam-clay모델을, 연구 사례가 많지 않은 모래질 흙에 적용함으로써 모래질 흙의 거동을 한계 상태 개념의 관점에서 분석해 보고자 하였다. 이를 위해 일반적인 압밀 배수 삼축 압축 시험과 모형 기초 재하 실험을 실시하였다. 그 결과, 본 논문에서 제안한 수정 hyperbolic모델을 사용함으로써 기존 모델보다, 기초에 작용하는 하중의 크기가 극한 지지력의 50%일때, 기초의 침하량 예측에 있어서 약 60% 정도, 결과의 향상을 기할 수 있었다. Cam-clay모델을 모래에 적용하는 경우에는 과압밀 효과를 고려할 수 있는 모델 및 변형률 연화를 고려할 수 있는 계산 알고리즘이 필요하다고 생각된다. 초기 포아송비의 크기는 Cam-clay모델의 경우 결과에 큰 영향을 미치지 않았으나, hyperbolic모델의 경우 결과에 큰 영향을 미치므로, 초기값의 선정에 신중하여야 함을 알 수 있다.

• 한국컴퓨터정보학회논문지
• /
• 제24권6호
• /
• pp.189-197
• /
• 2019

The purpose of this study was to investigate about the effects of parental rearing behavior on self-esteem and gender role stereotype during adolescence and to reveal the mediating effect of self-esteem on adolescents' gender role strerotype. Also investigated the relationship among these variables and condition variables. For this purpose, used the Second Grade longitudianl Panel data of Middle School from the Korea Youth Panel Survay(KYPS). And the latent growth model was analyzed 3,449 men and women adolescents' cases of the first, the fourth and the sixth wave of the Korea Youth Panel Survey(KYPS) administered by Korea Institute for Youth development. And the structural equation model was used to investigate whether self-esteem mediates parental rearing behavior and male and female gender role Strerotype. The results of this study, the direct effect between variable factors showed that the more positive the parenting behavior of the second grader of middle school is, the more positive the self-esteem of male adolescents and the initial value of stereotypes of male gender role. It also affects the self-esteem of female adolescents and stereotypes of female gender roles but not statistically significant. The male gender role stereotypes were decreased in influence by the rate of change of parental rearing behaviors, and the initial value and the rate of change of self-esteem were statistically influenced to the male gender role stereotypes and the higher the self-esteem, the higher the self-esteem. However, there was no significant effect on stereotypes of female gender roles. As a result of analyzing the mediating effect of self-esteem, partially mediated between the initial value of parental rearing behavior and initial stereotype of male gender role, but there was no longitudinal mediation effect. There was no mediating effect of self-esteem between parental rearing behaviors and stereotypes of female gender roles and there was no longitudinal mediation effect. The effect of condition variable gender was found that female adolescents are more affected by paretal rearing behavior than male adolescents and also affected by the growth process. The monthly income of households influenced the initial value of parental rearing behaviors and showed a difference in parental rearing behavior according to household income. And the higher the mother 's educational level, the more the self-esteem of male adolescents was affected.

• 보건교육건강증진학회지
• /
• 제27권4호
• /
• pp.177-188
• /
• 2010

Objectives: The aim of this study was to examine factors related to smoking behavior, and to develop multilevel communication strategies for smoking cessation. Methods: This paper reviewed theories and empirical findings with currents ecological models to develop communication strategies. Theory comparison was also performed to identify important mediators in the process of smoking cessation. Results: Factors that have been identified to influence smoking behavior ranges from individual perception, attitudes and self efficacy toward smoking to organizational norms, regulations, community capacity, media advocacy and public smoking regulation policy. In order to address these multi-level determinants of smoking behavior, objectives and strategies for smoking cessation intervention were developed utilizing ecological perspectives to cover intrapersonal, interpersonal(mainly family member and peers), organizational and community/public policy level factors. Conclusion: Multilevel approaches have advanced the existing knowledge on determinants of health behaviors. New direction of research focusing on testing multilevel intervention approaches should be expanded to inform the efficacy of applying social ecological models to health behavior change process.

• Korean Journal of Health Education and Promotion
• /
• 제3권1호
• /
• pp.83-98
• /
• 2001

Although periodic health examination has been one of the most common practices of preventive medicine, its effect on modification of risk behavior has been seldom assessed. Thus, this study attempted to demonstrate the influence of a health examination on modification of cardiovascular disease related health risk behaviors such as smoking, physical inactivity, and obesity. Data of 893 adults were derived from two types of a popular and highly acclaimed health examination program. With a conceptual model constructed using Persuasive Communication variables, McNemar tests examined Source-Outcome association, hypothesizing that different health examination programs would yield different levels of behavior change in smoking, physical inactivity, and obesity. No significant behavior change was found in any of the two health examination programs. Instead, previously established Receiver-Outcome relationship was reconfirmed by logistic regression modeling where gender was the most prominent predictor of all three behaviors. Men were more likely to be current smokers (OR=0.029), exercisers (OR=2.629), and obese (OR=0.237). The importance of followups after health examination is highly stressed as well as that of gender-specific health education strategies. This study recommends applying the social-ecological approaches in health examination, which emphasizes the support and collaboration at individual, family, organizations, community, and policy level to improve health. Long term and qualitative evaluation of health examination may provide more foundation for increasing the effectiveness of health education and communication in health examinations.

• 한국수소및신에너지학회논문집
• /
• 제35권2호
• /
• pp.121-128
• /
• 2024

In this study, a dynamic simulation model of a heavy-duty truck, equipped with a fuel cell power-train, has been developed and the dynamic behavior of the fuel cell stack has bee investigated using. Output change simulations were performed according to several drive cycle load change of a fuel cell truck. Mathworks' Simulink and Simscape program were used to develop the model. The model is comprised of fuel cell power train, power converter system and truck vehicle part. The vehicle runs at targeted speed of the truck, which is set as the load of the system. The dynamic behavior of the fuel cell stack according to the weight difference were analyzed, and based on this, the dynamic characteristics of the fuel cell output power and battery state with simple load was analyzed.

• 한국자동차공학회논문집
• /
• 제6권5호
• /
• pp.1-9
• /
• 1998

The analysis concerns collapse behavior of framed vehicle models with the change of design parameters at the initial stage of conceptual design. Collapse analysis of a vehicle model with framed structures has been carried out using finite element limit analysis. The analysis makes sequential changes of design parameters from an initial model with frames of uniform section so as to stage then weak parts. As a result of those design changes, the collapse load of a model has been increased and the deflection toward a passenger room has been reduced. The results demonstrate the versatility of finite element limit analysis as a tool that confirms the safety of vehicle models.

• 한국지반환경공학회 논문집
• /
• 제15권6호
• /
• pp.41-48
• /
• 2014

본 연구에서는 현장응력상태 및 수위변동을 재현한 원심모형실험을 통하여 속도변화를 고려한 지속적 수위승강에 따른 제체의 거동을 검토하였으며, 기후변화에 따른 기습적 폭우 상황을 상정한 월류 시 제체의 파괴거동을 모사하였다. 실험 결과, 제체내의 간극수압 및 변위는 수위상승 및 하강속도에 비례하여 증감하며, 제정부 및 제체 하류측 사면부의 변위증분은 수위승강속도에 대하여 독립적임을 알 수 있었다. 또한 반복적이고 지속적인 수위변동은 변위의 누적을 통해 제체의 변형을 진행시키는 요인이 되며, 월류에 의해 저수지 제체의 안정성이 급격히 저하됨을 확인하였다. 따라서 호우 등으로 수위가 급상승하는 경우 간극수압, 변위 등을 실시간으로 감시하고, 이상 발생 시 수문개방 등을 통해 저수지의 수위를 조절하는 조치를 강구할 필요가 있다.

• 한국정보시스템학회지:정보시스템연구
• /
• 제25권3호
• /
• pp.1-30
• /
• 2016

Purpose The purpose of this study is to grasp the factors influencing domestic SNS users' privacy protection behavior and verify their relationship through self-efficacy and responsiveness. Thus, this study tries to suggest efficient and effective measures for SNS personal information protection. Design/methodology/approach To this end, with main variables of the protection motivation theory based on the assumption that when users are exposed to the threat to their health, they would have protection motivation and change their behavior of protecting their health, a research model was suggested. In addition, in order to empirically verify the research model, a survey was performed targeting general college students having the experience of using SNS. Findings As a result of the analysis, first, perceived effectiveness and self-efficacy had a positive effect on responsiveness. Second, perceived barrier had a positive effect on self-efficacy. Third, self-efficacy and responsiveness had a positive effect on privacy protection behavior. This study is expected to contribute to establishing an effective guideline for measures that could induce SNS users' privacy protection behavior.

• Nuclear Engineering and Technology
• /
• 제24권1호
• /
• pp.30-39
• /
• 1992

본 연구에서는 붕산주입 및 회석운전동안에 노심의 붕산농도를 변화시키기 위한 보충수 유량을 예측하고 화학 및 체적제어계통을 포함한 원자로 냉각재계통내에 있는 각종 계통에서 붕산농도 거동분석을 위한 종합적 붕산주입 및 희석모델(INBAD)이 제안되었다. 이 모델은 기존의 노심코드와 새로 개발된 붕산주입 및 희석모델로 구성되어 있으며 붕산주입 및 희석모델은 단일 cell 모델 및 다중 cell모델을 이용하여 본 연구목적에 맞게 개발되었다. 또한, 본 모델에서는 보다 실제적인 붕산농도 거동분석을 위하여 가변적 가압기 가열기 출력 및 선택적인 보충수 운전형태 (직접주입 또는 간접주입)가 모사되었다. 이 모델의 유용성을 증명하기 위하여 영광 3,4호기 설계자료를 이용하여 각종 계통에서 직접주입 및 간접주입운전에 대한 붕산농도 거동분석을 수행하였고, 노심의 붕산농도에 대한 가압기 가열기의 영향을 검토하였다. 그 결과 본 모델은 붕산주입 및 희석운전시에 각종 계통에서 붕산농도 변화를 정확히 예측할 수 있음을 보여 주었다.