• 마이크로전자및패키징학회지
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• 제9권4호
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• pp.31-34
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• 2002

For the mold die sticking mechanism, the major explanation is that the silica as a filler in EMC (epoxy molding compound) wears die surface to be roughened, which results in increase of adhesion strength. As the sticking behavior, however, showed strong dependency on the EMC models based on the experimental results from different semiconductor manufacturers, chemisorption or acid-base interaction is apt to be also functioning as major mechanisms. In this investigation, the plasma source ion implantation (PSII) using $O_2, N_2$, and $CF_4$ modifies sample surface to form a new dense layer and improve surface hardness, and change metal surface condition from hydrophilic to hydrophobic or vice versa. Through surface energy quantification by measuring contact angle and surface ion coupling state analysis by Auger, major governing mechanism for sticking issue was figured out to be a complex of mechanical and chemical factors.

• International Journal of Advanced Culture Technology
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• 제10권2호
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• pp.162-173
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• 2022

In non-face-to-face teaching-learning, a survey was conducted on 55 students in the department of chemistry education at university A on the variables (behavioral control, instructor-learner interaction, cognitive learning) affecting learning satisfaction and academic achievement. There were relatively large positive correlations between variables. The positive correlation between them was found to be the factors that influenced learning satisfaction and academic achievement in non-face-to-face teaching-learning. The average values of non-face-to-face teaching-learning for each variable were lower than the corresponding values of face-to-face teaching-learning, respectively. As a result of the perception survey on the detailed factors of each variable, negative responses were relatively high in factors such as 'concentration of behavior' in behavioral control, 'level-considered explanation' in instructor-learner interaction, and 'knowledge understanding' in cognitive learning.

• Nuclear Engineering and Technology
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• 제56권4호
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• pp.1407-1424
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• 2024

In Pressurized Water Reactors, most of the failed fuel rods are often observed at the periphery of the fuel assembly, especially near the core baffle. The rod vibration-induced fretting wear is a significant failure mechanism strongly correlated with the coolant and support conditions. This paper presents a coupled vibration model of double-rod to predict the grid-to-rod fretting (GTRF) wear. A motion-dependent fluid force model is used to simulate the coolant cross flow, the gap constraints with asymmetric stiffness between spring and dimple on the vibration form, and the fretting wear are discussed. The results show the effect of the coupled vibration on the deterioration of wear, providing a sound theoretical explanation of some failure phenomena observed in the previous experiment. Exploratively, we analyze the impact of the baffle jet on the GTRF wear, which indicates that the high-velocity cross-flow will significantly affect the vibration forms while sharply changing the wear behavior.

• 산업융합연구
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• 제20권11호
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• pp.1-10
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• 2022

본 연구의 목적은 여대생의 데이트 폭력 인식이 데이트 폭력 피해자 행동에 미치는 영향에서 폭력허용도의 매개효과를 분석하는 것이었다. 본 연구를 위해 U대학교 4개 학과에 재학 중인 여대생 161명을 대상으로 설문을 배포 및 수집하였다. 통계분석은 빈도와 백분율, 상관분석, 단순회귀분석, 계층적 다중회귀분석, Sobel 검증을 시행하였다. 연구 결과 첫째, 여대생의 데이트 폭력에 대한 인식이 데이트 폭력 피해자 행동 간에 부적 영향을 미치는 것으로 나타났고, 설명력은 5%였다. 둘째, 폭력 허용도는 모든 데이트 폭력 피해자의 행동에 정적영향을 미치는 것으로 나타났고, 설명력은 12%로 나타났다. 셋째, Sobel 검증 결과 첫 번째 단계에서 여대생 데이트 폭력에 대한 인식은 폭력에 대한 허용도를 유의하게 설명하였고, 두 번째 단계에서는 데이트폭력 인식이 데이트 폭력 피해자의 행동을 유의하게 설명하였다. 세 번째 단계에서는 폭력을 허용하는 것으로 데이트폭력 피해자의 행동을 설명하였고, 네 번째 단계에서는 폭력에 대한 허용을 도입하였을 때 데이트 폭력 인식이 데이트 폭력의 피해 행동에 미치는 영향은 감소하였지만 유의미한 수준은 아니었다. 즉, 폭력허용도는 데이트 폭력 인식이 데이트 폭력 피해자 행동에 미치는 영향에서 부분 매개효과를 보였다. 향후 데이트 폭력의 피해자 예방을 위해 폭력에 대한 인식을 높이고, 폭력에 대한 허용을 낮출 수 있는 실용적인 프로그램 개발 및 적용이 필요할 것이다.

• 대한가정학회지
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• 제40권12호
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• pp.85-108
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• 2002

The objectives of this study were to investigate the trend of the attitude and the behavior about consumer's internet premium advertisement and its application and the factors which influence on the attitude and the behavior about consumer's premium advertisement and its application; the demographic variables, internet communication-environment variables and variables in relation to consumer's premium advertisement application. For these purpose, the data collected two way: internet survey and questionnaire survey. The data used in this study included people who have looked an internet Premium Advertisement more than once during internet use. Major findings were as following: (1) The attitude of internet premium advertisement and its application could be described as the mean 34.16 md 24.61 separately(3.11 and 2.73 point on 5.00 points scale). The behavior of application about internet premium advertisement was measured as a behavior of application whether or not; application 18.7% and unapplication 81.3%. (2) The attitude of application about internet premium advertisement was significantly different according to age, joining frequency on internet, past experience of winning a premium, purchasing information search, interesting connection on the internet, the risk about the money loss and negative evaluation of other persons, the economical values of premiums, winning possibility, and preferable premiums. The behavior of application about internet premium advertisement, the behavior of application whether or not was significantly different according to sex, age, school career, a circuit speed, a period of using, joining frequency and a using place, past experience of winning a premium, purchasing information search, interesting connection on the internet, the risk about the negative evaluation of other persons, the economical values of premiums, winning possibility, and preferable premiums. (3) When looking at the influence of variables about the attitude of application about internet premium advertisement, the most influence variables was the past experience of winning a premium, and next was winning possibility, sex, the interest about the premiums which made the consumer want to apply, the economical values of premiums, the purpose of purchase information search and the using time. The explanation of those variables were 22.6%. As the result of the Logistic analysis, it was found that the frequency of the internet connection, the past experience of winning premiums, the risk about the outflow of credit information, interesting premiums, and premium advertisement were the most important variables to affect the possibility of the behavior of application about internet premium advertisement critically.

• 한국가정과학회지
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• 제6권2호
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• pp.1-12
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• 2003

This study is designed to analyse the difference between consciousness and behaviors for environmental preservation dependant on independent variables and to identify factors that affect the behaviors of environmental preservation. For this study, a questionnaire that included measurements of environmental preservation consciousness and behaviors was produced as a studying tool. Targets were 520 boy and girl students in the second grade of two high schools in Gwangju and three high schools in small districts of Chonnam Province and 482 questionnaires were distributed for the analysis. The data collected was analysed using SAS Program Package to obtain frequency, percentage, standard deviation, and correlation and T-Test One-way ANOVA, Duncan's M411ip1e Range Test, Multiple Regression were performed. The results of the analyses are as follows : 1. Overall, environmental preservation consciousness is higher than preservation behaviors. Interest in air pollution is the highest in both environmental preservation consciousness and behaviors and it is low in recycling. 2. The environmental preservation consciousness has a significant difference dependant on sex, regions, order of birth, educational background of parents and income level. the performing degree of environmental education, consciousness about kinds of environmental preservation, and whether the learning of theory and practice of environmental education is performed. 3. The environmental preservation behaviors has a significant difference dependant on regions, educational background of mother, mother's job, income level, acquiring of information, performing degree of environmental education and consciousness of kinds of environmental education. 4. Variables that affect environmental preservation behavior are environmental preservation consciousness, acquiring information, performing degree of environmental education and awareness of environmental preservation. Their power of explanation is 15%.

• 지역사회간호학회지
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• 제9권2호
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• pp.441-457
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• 1998

The purpose of this study is to provide fundamental information for the development of new sex education image media through the analysis of those tools produced by Planned Parenthood Federation of Korea. Twenty three video tapes related to the sex education were analysed. The data were sampled on the basis of the sex education instructions for primary and secondary schools published by the Seoul Office of Education in 1996 and the list of sex education information composed by the Planned Parenthood Federation of Korea with the following requirements. 1) The education materials are oriented to the middle and high school students as well a juveniles and are being used in public health centers and schools. 2) The education materials are not confined to the single subject such as AIDS or contraception. Because this study is focused on the analysis of image media, an analysis method widely and effectively used in public media study was chosen. The frequency analysis and percentage treatment were done by an SAS program. The results of the study are as follows : 1. An analysis of the material structure type showed that the frequency of the following subjects in 15 video tapes, composed as drama and cartoon, had this decreasing orde : sex behavior, sex relation ships, sex health, human development, personal technique, and society and culture. 2. The eight tapes of explanation and counseling showed a different sequence from that of the drama and cartoon material, primarily treating human development with 5419 seconds (47.9%) of type. The following were also considered in decreasing order: at 2000seconds (17.6%) sex behavior, at 1366 seconds (12.1%) sex health, at 1240 seconds (11.0%) society and culture, at 667 seconds (6.0%) relation ships, and at 611 seconds (5.4%) personal technique. 3. In a thematic analysis those education materials dealing with human development show this frequency sequence: anatomic physiology, reproduction, and adolescence. In relation, ships the sequence is dates, love, marriage and vows, and family. For personal technique, it is expressed as asking for help, and an empnasis on moral values. For sex behavior, they focus on abstinence, the co-responsibility of sex behavior, the sexual response of the human, and sexual nightmares. For the sex health area, the focus is contraception with abortion and reproductive health following that. In society and culture diversity is considered. 4. An analysis of the differences in production and content between 1980s and 1990s was also done. For materials produced in the 1980s the frequency of the subjects follows this order: sex behavior, human development, relation ships, sex health, personal technique, and society and culture with sub subjects such as abstinence, dating, adolescence, anatomic physiology, reproduction, calls for help, and the sexual response of a human being. For materials produced in the 1990s, highest frequency was sex behavior, the same as the 1980s. The rest of the material follows this decreasing order: relationships, human development, sex health, society and culture, and personal technique with sub subjects such as dating, co-resposibility in sex behavior, abstinence, and love frequently considered.

• 한국융합학회논문지
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• 제8권7호
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• pp.63-73
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• 2017

본 융합연구의 목적은 간호사의 코칭행동수준과 감성지능이 조직유효성에 미치는 영향을 확인하기 위한 서술적 조사연구이다. 연구대상자는 B, U광역시 4개의 종합병원 간호사이며, 2017년 3월 2일부터 2017년 3월 23일까지 자기기입식 설문지로 조사 후 최종 182부를 IBM SPSS 21.0프로그램을 이용하여 분석하였다. 연구결과 코칭행동수준 $3.28{\pm}0.42$점, 감성지능 $3.27{\pm}0.45$점, 조직유효성 중 조직몰입 $2.89{\pm}0.52$점, 직무만족도 $2.94{\pm}0.53$점, 이직의도 $3.24{\pm}0.56$점이었다. 조직몰입은 코칭행동수준, 감성지능과 정적상관관계가 있었고, 조직유효성에 영향을 미치는 융합요인은 프리셉터 경험(${\beta}=.25$, p=.001), 간호직 만족도(${\beta}=.26$, p<.001), 코칭행동수준(${\beta}=.26$, p<.001)이었고 설명력은 25%이었다. 따라서 간호사의 조직몰입을 높이기 위해서 직무의 특성을 만족시키고, 코칭행동수준을 향상시키는 중재프로그램이 마련되어 적용된다면 조직유효성을 높일 수 있을 것으로 기대한다.

• 한국산학기술학회논문지
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• 제15권9호
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• pp.5610-5620
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• 2014

본 연구는 일부 사무직 행정공무원들의 직무스트레스 수준을 파악하고 사회심리적 요인(A형 행동유형, 통제신념, 자기존중감)과 직무스트레스와의 관련성을 규명하고자 시도하였다. 연구대상은 C도청에 근무하고 있는 공무원 634명(남자 505명, 여자 129명)이었으며, 자료 수집은 2013년 2월 18일부터 3월 10일까지의 기간 동안에 구조화된 무기명 자기기입식 설문지를 이용한 설문조사에 의하였다. 연구결과, 조사대상자의 직무스트레스 수준은 성별, 연령, 학력, 결혼상태, 직급, 근무경력, 공무원생활에 대한 만족도, 흡연상태, 음주상태, 수면시간, A형행동유형, 통제신념 및 자기존중감에 따라서 유의한 차이를 보였다. 사회심리적 요인과 직무스트레스 수준과의 상관관계를 보면, 업무요구도는 내적 통제신념과 유의한 음의 상관관계를 보였으며, 업무의 자율성은 A형행동유형, 내적 통제신념 및 자기존중감과 유의한 음의 상관관계를 보였다. 상사의 지지도는 외적 통제신념과 유의한 음의 상관관계를 보였다. 위계적다중회귀분석 결과 직무스트레스 수준에 영향을 미치는 요인으로는 연령, 주관적인 건강상태, 직위, 잔업시간, 질병으로 인한 결근, 업무에 대한 만족도, 수면시간, 여가시간, 외래진료경험유무, A형행동유형, 통제신념 및 자기존중감이 선정되었으며 이들의 설명력은 32.1%이었다. 위의 모델에서 보면 A형행동유형, 통제신념 및 자기존중감 등의 사회심리적 요인이 추가됨으로 해서 15.0%의 설명력을 증가시켜 직무스트레스에 사회심리적 요인이 큰 영향을 미치고 있음을 알 수 있었다.

• 한국산학기술학회논문지
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• 제21권8호
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• pp.277-286
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• 2020

본 연구는 간호대학 여학생의 골 건강에 대한 인지 및 지식과 골질량 증진행위를 파악하기 위한 서술적 조사연구이다. 연구대상은 K시와 D시 소재의 3개 간호대학에 재학 중인 간호대학 여학생 172명을 대상으로 2020년 3월 16일부터 4월 4일까지 일반적 건강관련 특성, 골 건강 인지, 골 건강 지식, 골질량 증진행위 도구를 이용하여 온라인 설문조사를 실시하였다. 수집된 자료는 SPSS WIN 22.0을 이용하여 서술적 통계, t-test, ANOVA, Pearson's correlation, 위계적 다중회귀분석을 하였다. 간호대학 여학생의 건강 인지 수준은 1.79점이었으며, 골 건강 지식수준 8.86점, 골질량 증진행위 수준은 2.78점으로 나타났다. 골질량 증진행위는 골 건강 지식(r=-0.21, p=.005)과 초경연령(r=-0.21, p=.004), 하루 15분 햇빛노출(r=-0.44, p<.000)간에 유의한 음의 상관관계가 있었다. 골질량 증진행위에 영향을 주는 변수 3가지를 단계별 회귀분석으로 투입하였을 때 모델 1의 골 건강 지식(β=0.21, p=.005)과 모델 2의 초경연령(β=-0.20, p=.005)을 투입했을 때 보다 모델 3의 하루 15분 햇빛노출(β=-0.38, p<.000)이 투입되었을 때 골질량 증진행위에 대한 설명력이 증가하여 20.6%의 설명력이 나타났다. 본 연구결과 골질량 생성에 비타민 D는 음식과 햇빛을 통해 체내로 들어오므로 골량이 증가하는 여대생의 햇빛 노출은 골질량 증진행위에 중요한 요인이다.