• Journal of the HCI Society of Korea
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• v.13 no.3
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• pp.35-42
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• 2018

Social Networking Sites (hereafter SNSs) have become a part of people's daily routines. Beginning as a hobby/communicating tool for a specific group of people, SNSs have expanded in terms of the number of users, frequency of access, and depth and range of sharing. It is recently reported that the users experience SNS fatigue from being connected at all time. However, limited research has addressed this issue. The purpose of the present study was to examine the mediating role of reputational concern and expectation of others' responses on the relationship between narcissism and Facebook fatigue. A total of 329 Facebook users completed an online survey. The results showed that individuals who rated high on narcissism experienced a high level of Facebook fatigue, and that both reputational concern and expectation of others' responses partially mediated the relationship between narcissism and fatigue. Implications of the findings and suggestions for future research are discussed.

• Journal of the Korea Convergence Society
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• v.9 no.3
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• pp.173-179
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• 2018

The purpose of this study was to explore college students' use of learning strategies in a flipped learning class, and to examine the students' use of learning strategies in relation to their achievement levels. The participants were 33 college students who took an introduction to English education course. The study used three data collection procedures: (1) students' performance score; (2) a pre-and post-survey of student learning strategies; (3) a survey of student perception towards the flipped learning experience. Data were analyzed by using paired samples t-test and ANOVA. Results showed that the students used different learning strategies in the beginning and the end of the course, depending on their achievement levels. In particular, significant differences were found among three groups in terms of time management, concentration, selecting main idea, self-testing, and test strategies. The result indicates that learning strategies can be effectively trained and developed in the flipped learning environment with the consideration of students' levels.

• Journal of the Korea Convergence Society
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• v.11 no.5
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• pp.335-340
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• 2020

In this study we conducted a questionnaire survey by purposive quota sampling(n=566) by status of workers(permanent workers, temporary workers and business owners) and age group(20-59 years old) for single households engaged in economic activities in order to compare the health behaviors and health checking by employment type and age. By employment type, the sleep time of permanent workers was significantly less than that of other groups(p<0.001), and the rates of health and oral examinations in permanent workers were significantly higher(p<0.001). By age group, as the age increased, the oral condition was worse(p<0.001), but the rates of not taking oral examinations were significantly higher(p=0.023). This study can be meaningful as basic data for making a healthy living environment according to various characteristics of single households.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2007.11a
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• pp.1015-1018
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• 2007

VE is one of the most effective and systematic tool available to achieve the required function at minimum cost and manage in many industrial fields. The purpose of the preparation phase VE job plan is to establish a cooperation system referring to groups for the successful implementation of VE, and to achieve a common objective to collect sufficient materials required in the analysis phase. The Quality Model is used to measure the requirement of shareholders(users and owners)in the project. It also offers a guideline on decision making when executing the function definition, function arrangement, function evaluation, and the idea evaluation of VE. However, the current the preparation phase business confirms that the required items of owners and users has not suggested definite goals and directions. This study analyzes the problems of current work in the preparation phase from case study, survey and interviews of experts. It then proposes a new process after understanding the required items of owners, users and experts.

• Korean Journal of Construction Engineering and Management
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• v.9 no.4
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• pp.111-119
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• 2008

VE is one of the most effective and systematic tool available to achieve the required function at minimum cost and manage in many industrial fields. The purpose of the preparation phase VE job plan is to establish a cooperation system referring to groups for the successful implementation of VE, and to achieve a common objective to collect sufficient materials required in the analysis phase. The Quality Model is used to measure the requirement of shareholders(users and owners)in the project. It also offers a guideline on decision making when executing the function definition, function arrangement, function evaluation, and the idea evaluation of VE. However, the current the preparation phase business confirms that the required items of owners and users has not suggested definite goals and directions. This study analyzes the problems of current work in the preparation phase from case study, survey and interviews of experts. It then proposes a new process after understanding the required items of owners, users and experts.

• The Journal of the Korea Contents Association
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• v.8 no.6
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• pp.130-139
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• 2008

The purpose of this study was to develop psychological skill training program for actor with considering the ecological validity of social, cultural environment in Korean but also examine the effect of psychological skill training through psychological counseling and field study to decrease stage-anxiety. The experimental group were 2 actors, who were selected by purposive sampling. The psychological skill training program to decrease stage-anxiety for actor was composed of five stages, 12times and categorized as orientation, breathing regulation, progressive relaxation training, group counseling, heart rate bio-feedback training, self concentration, routine training, behavior therapy & self reinforcement, image training. The effects was examined on stage performance anxiety scale, psychological counseling and observation of experts. As the result of applying the psychological skill training to decrease stage-anxiety, cognitive state anxiety, somatic state anxiety were decreased. According to the result of counseling and observation, they were changed affirmative on self confrontation, harmony and rapport between actor and object. This result demonstrated the psychological skill training & counseling to decrease stage-anxiety for actor were effective.

• Journal of Korea Water Resources Association
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• v.41 no.10
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• pp.1067-1077
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• 2008

An understanding of temporal trends of stream flows can help in the river management and the water resources planning for natural circumstances and human communities. Changes in temperature, precipitation, flow, and land use (agriculture, flood prevention activities, reservoir operation, interbasin diversion, etc.) are all eventually reflected in the flow pattern of the river. An assumption that the stationarity of the hydrologic series implying time-invariant characteristics of the time series accepted in water structure designs can no longer be valid if the flow changes as a result of the climate change or the stream flow use. Therefore, the identification and description of the characteristics of changes in hydrologic time series is a very important task in the river basin management. In this study, the statistical tests on the flow change forced by excess water diversions in the Sumjin River basin were performed by ways of single variable and time series variable comparisons. The tests showed that currently the Sumjin River basin statistically keeps its homogeneity in annual streamflow series, but the changed situation has been appeared in dry season streamflow series.

• Journal of Digital Convergence
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• v.19 no.12
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• pp.63-77
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• 2021

This study aims to explore the differential effects of teacher support on Chinese EFL students' listening ability in a blended learning environment. 87 third-year English-major students in a Chinese university participated in this study and they were randomly divided into an autonomy group (n=22), an emotional group (n=22), a cognitive group (n=22) and a control group (n=21). Each experimental group received relevant teacher support during their 17-week course learning while the control group did not. To confirm the effects of teacher support, pre- and post- listening tests were conducted. The results of the paired t-tests demonstrated that all groups showed statistically significant improvement in their English listening ability. The results of the one-way ANOVA for the post-test revealed that autonomy support and cognitive support were more effective than emotional support in improving students' listening ability. Based on the findings, this study hopes to provide insights for EFL teachers in designing and arranging the activities in a blended course.

• Journal of Convergence for Information Technology
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• v.11 no.10
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• pp.68-73
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• 2021

This study was to identify the effects of using Gratitude Diary Writing on self-esteem and internal-external locus of control to adolescent. A randomized controlled experimental design was used. There were 20 participants in the experimental group, and 19 in the control group. Data were analyzed using Chi-square test, Fisher's exact test, t-test. The results of self-esteem(t=5.142, p=<.001) and internal-external locus of control(t=5.821 p=<.001)l showed statistically significant differences between the two groups. Using thank journal writing is effective in improving adolescents self-esteem and internal-external locus of control. If the gratitude diary writing effect of gratitude is verified by selecting a wide sample, it is expected that it will be helpful for generalize activities.

• Journal of Teachers' Pension
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• v.5
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• pp.219-241
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• 2020

연기연금제도는 연금 지급개시연령 도달 이후 일정 기간 연금수급을 포기하는 대신 급여에 일정액을 가산하여 지급하는 제도이다. 연기연금은 지급개시연령 도달 이전에 수급을 신청하면 일정액을 가산하여 차감하고 지급하는 조기연금과 상호보완적인 기능을 수행하며 유연은퇴(flexible retirement)의 주요한 축을 구성한다. 연기연금제도의 정책적 목적은 수급자별 다양한 재무적 상황에 따라 보다 유연한 은퇴설계와 노후소득 확충을 지원하는 제도적 장치를 마련하는 것이다. 하지만 현재 연기연금제도는 국민연금에는 시행되고 있으나 사학연금을 비롯한 직역연금에는 도입되지 않고 있다. 최근 공적연금간 급여규정 수렴화에도 불구하고 사학연금을 비롯한 직역연금에서 연기연금을 도입하지 않는 배경에는 공적연금간 급여 형평성 등 많은 쟁점사항들이 영향을 미치기 때문일 것이다. 하지만 이 연구는 그러한 기저의 논쟁에서 벗어나 제도의 재무적 특성 분석을 목적으로 한다. 분석자료는 연금수급을 위한 요건을 충족한 퇴직자 중 연금수급연령 미도달자로 이들 대기자 그룹의 미시자료를 이용해 연기연금 적용 시 제도의 총급여액 증가를 야기하지 않는 재정 중립적 증액률(plan-neutral deferral rate)을 산출하였다. 분석결과, 분석자료를 대상으로 한 산술적 증액률은 6.75%였으나 민감도 분석의 결과를 반영한 적정수준은 6% 이하일 것으로 사료된다. 이는 장기적 추정의 특성상 적용되는 가정변수 수준에 따라 변동폭이 클 뿐만 아니라 하위 구성집단간의 이질적 특성으로 산출되는 증액률의 편차가 크기 때문이다. 따라서 재정 안정성을 훼손하지 않기 위해서는 보수적 관점의 접근이 필수적이다. 연구의 구성은 크게 세 부분으로 II장에서는 소득활동관련 연금의 주요한 수단으로 연기연금의 제도적 필요성을 검토하고, III장에서는 실제 사학연금 가입자 자료를 이용해 재정 중립적 증액률을 산출하고 주요 변수별, 특성 집단별 증액률에 대한 분석결과 및 시사점을 기술하였다. IV장에서는 장기 재정안정성을 저해하지 않기 위해 적정 증액률 산정 시 추가적으로 고려해야 되는 재무적 관련사항을 기술하였다.