• Journal of the Korean Geographical Society
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• v.33 no.3
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• pp.377-394
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• 1998

The magnetic record of loess deposits may be one of the most detailed and useful records of Quatermary climate change on the continents. Stratigraphic variations of magnetic parameters define alternating zones of high and low concentrations of magnetic minerals. All the concentration-sensitive magnetic parameters show an increase within the interstadial Gilman Canyon Formation and interglacial Brady soil and a systematic decrease within the Wisconsinan Peoria loess. The influence of climate change on magnetic records is confirmed by a high correlation between the magnetic parameters and biological proxies. Rock magnetic data appear to be better correlated with temperature-sensitive biological proxies than does a precipitation-sensitive index such as the aridity index derived from opal phytoliths. Simultaneous, higher resolution sampling of magnetic and biological proxies proved to be a better sampling tactic, and enhanced the feasibility of rock magnetic parameters as independent climate proxies.

• Journal of Digital Contents Society
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• v.18 no.8
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• pp.1543-1550
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• 2017

Previous research on smartphone has been focused on personal performance, accessibility, and information gaps in information system quality. In order to analyze the relationship between the use of smartphone information and personal characteristics, this study conducted a survey of 300 tourists at Jeju Airport, by using three variables of self-efficacy, 'impulsiveness and demographic variables (age, sex, education level, etc.) of smartphone use with personal characteristics. In conclusion, self-efficacy and impulsiveness seem to be positively related to the use of smartphone because it seems to be a living environment in which the desired information can be acquired within a desired time. In addition, there seems to be a difference between a mobile native environment in which online and offline boundaries are always connected and an environment in which 40 to 50 digital literacies are connected. This can be interpreted as a result of additional analysis.

• Journal of the Korean Society of Earth Science Education
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• v.9 no.2
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• pp.233-242
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• 2016

The purpose of this study was learning about the project 'stratum and the rock ' of pre-primary teachers to the effects of self-directed learning ability and environmental sensitivity. This study was set up experimental treatment period of 15 weeks from March 2016 to June, students who are B Education University of fourth grade the first semester participated, in the study, It was composed of 34 students of 1 class taking 'strata and rock' lecture. Experimental study group consisted of exploration activities on the field experience about strata and rock. Set the area they want to explore the site by teams. The results of this study are as follows. First. learning about the project 'stratum and the rock ' of pre-primary teachers was effective to self-directed learning skills. 2nd, Learning about the project 'stratum and the rock ' of pre-primary teachers was effective to environmental sensitivity. 3rd, The students showed a positive response and were interested in the project 'stratum and the rock ' of pre-primary teachers.

• Journal of The Korean Association of Information Education
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• v.25 no.3
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• pp.571-578
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• 2021

This study compares Online SW-based maker education in terms of self-efficacy, learning motivation, and interest after applying differently according to blended learning strategies. First, a SW maker program for blended learning was developed and applied as a live seminar-type class including real-time interactive and a support-providing class consisting of online content and Q&A. As a result of comparing the differences between students according to the two strategies divided into pre- and post- survey, in the self-efficacy part, there was a significant difference in the positive efficacy and the overall part, and in the learning motivation part, the live seminar form was significantly higher in the confidence part. In the interest part, the support-providing form showed a significantly higher average in the instrumental interest and nervous part. In order to maintain the effect of maker activities like existing face-to-face situations in Online learning, it is necessary to increase sharing time between students, an integrated learning environment, and sufficient provision of exploration time and learning materials.

• Proceedings of the Korea Water Resources Association Conference
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• 2022.05a
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• pp.416-416
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• 2022

RCP(Representative concentrate pathways) 기후변화 시나리오에서는 2100년까지 연강 강수량과 강우지속시간이 지속적으로 증가할 것으로 예측하고 있다. 이에 도시지역의 하천 범람 및 내수 침수 예방을 위해 방재성늑목표의 상향조정과 방재 인프라의 설계년수 재조정 등에 대한 논의가 진행되고 있다. 하지만 수재해 예방을 위한 강우설계기준에서는 무강우 지속시간의 설정을 확보할 수 있는 최대 규모의 모집단을 통해 산정하는 방식으로 제시되고 있어 최근 기후변화로 인한 강우특성의 변화가 반영되기에 어려움이 있다. 본 연구에서는 부산광역시 강우자료의 모집단을 10년, 20년, 30년으로 구분하여 자기상관계수(Autocorrelation coefficient, AC) 분석, 변동계수(Coefficient of variation, CV) 분석, 연평균 강우사상 발생 개수(Average annual number of rainfall event, NRE) 분석 방법을 적용하여 비교 분석을 수행하였다. 그 결과, 자기상관계수 분석 방법과 변동계수 분석 방법에서는 모집단의 규모가 클수록 튀는 자료를 상쇄하여 안정적인 결과를 나타내는 반면, 연평균 강우사상 발생 개수를 확인 하였을 때는 대상기간에 큰 영향을 받지 않는 것으로 확인되었다. 또한, 모집단의 규모가 클수록 무강우 지속시간이 길어지는 것으로 분석되어 기후변화로 인한 최근의 강우특성을 반영하기 위해서는 모집단의 규모를 크게 잡는 것이 효과적이지 않을 수 있다는 점을 확인하였다. 이는 강우자료 분석 시 분석방법 및 모집단의 규모를 달리하여 무강우 지속시간을 산정해보고, 설계 목적에 따라 적정한 의사결정이 필요함을 시사한다.

• Journal of The Korean Association of Information Education
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• v.13 no.3
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• pp.291-302
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• 2009

The Educational situation of studying the effect of maximizing through Student's Self-directed demand varying educational environment on a Learner-Centered understanding of existing ICT deficiencies. But schools recognize computer skill learning as all of computer education contents. This study is established in an 'e-PBL environment' in use with 'Ulsan Cyber Home Study' on a learner-centered and design teaching method for an effective computer course. This study presents effective learner-centered teaching methods. It does this using the web environment 'Ulsan Cyber Home Study' and reconstructing each unit of the ICT textbook 'Our Living and Information'.

• Culinary science and hospitality research
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• v.21 no.5
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• pp.119-128
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• 2015

The purpose of this study is to develop and test a model that explains the potential influences of: 1) consumers' values, 2) their attitudes toward green practices and/or environmental concerns, and, 3) "green hotel" visit behaviors. In addition, the study will clarify how these variables relate to each other. The findings of this study will further our understanding of what drives green hotel visit behaviors and will provide insights for public policymakers and industry marketers.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.17 no.4
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• pp.573-586
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• 2016

This study attempted to look into the effects of the job environment and job esteem on job satisfaction in the field of skin beauticians. To achieve this, a survey of their characteristics, job environment, job esteem and job satisfaction was carried out on 470 women in their 20s~50s working at skin care shops in the Seoul and Gyeonggi areas. First, it was found that the effects of the working environment on their vocational satisfaction, sense of belonging, level of contribution, wages and welfare, which are sub-factors of job satisfaction, are relatively high. This result shows that it is important to ensure proper resting facilities and resting areas. Second, it was shown that the higher the social evaluation, self-(implicit) assessment, future value, and self-fulfillment orientation, the higher the sub-factors of job satisfaction. This means that it is important to treat skin beauticians as professionals in order to improve their social recognition. The sub-factors of job environment-working conditions, organizational environment and job stability, and sub-factors of job environment-social evaluation, self(intrinsic) evaluation, future value and self-achievement orientation, had a major effect on the sub-factors of job satisfaction, respectively. Together with the general improvement in the sub-factors of job environment, the future value, as well as social evaluation, self(intrinsic) evaluation and self-achievement orientation, which together constituted the current value of job esteem, were the major factors affecting job satisfaction. Consequently, this study hopes to contribute to the development of the skin beauty industry by providing basic data on personnel management for skin care managers to improve skin beauticians' job satisfaction.

• Journal of The Korean Association For Science Education
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• v.25 no.3
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• pp.364-370
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• 2005

The purpose of this study was to examine middle school students' (N= 153) perceptions of motivational climate (teacher learning/teacher comparison/peer learning/peer comparison/peer worry) and their achievement goals (task/performance/performance-avoidance). The influence of perceptions of motivational climate emphasized by science teachers and/or peers on achievement goals was explored by stepwise regression. Although there was no difference in male/female perceptions of motivational climate, there was significant difference in their achievement goals. Regression result indicated that the pursuit of learning by peers made the strongest contribution to students' task goal. On the other hand, promotion via comparison by science teachers or peers had little effect on inducing performance goal. Anxieties about mistakes were found to be the strongest contribution to predictions on students' performance-avoidance goal. The promotion of comparison by science teachers was related to not only performance goal, but also performance-avoidance goal. Lastly educational implications for intervention efforts designed to enhance the quality of student motivational development in science education are discussed.

• Journal of Korean Home Economics Education Association
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• v.22 no.4
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• pp.51-64
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• 2010

The purpose of this study was to investigate the effects of individual psychology, family environment and social environment factors on adolescents' behavior problems. The subject of this study were 500 middle school students who reside in Incheon, Geonggi-Do and 483 self reported questionnaires were used for final analysis. The findings of this study suggested that there was no significant difference between male and female adolescents in externalizing behavior problems. However, it was found that female adolescents experienced more internalizing behavior problems than male adolescents. Secondly, low levels of self-control and more contact with delinquents. were associated with more externalizing behavior problems for male and female adolescents. Self-esteem, self-control, marital conflict and contact with delinquents were related to more internalizing behavior problems for male adolescents. In addition, self-esteem, parenting behavior and contact with delinquents affected female's internalizing behavior problems.