• Proceedings of the Korea Water Resources Association Conference
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• 2006.05a
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• pp.391-395
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• 2006

본 연구에서는 새로운 일차원 하천 흐름모형인 SNS(Super- aNd Sub critical flow model)를 개발하였다. 이 모형은 연속방정식과 운동량방정식을 상류이송기법을 이용하여 해석하고, 생성항을 처리할 수 있는 특별한 기법을 사용하고 있다. SNS 모형은 보나 여수로 등에서 발생하는 불연속 흐름을 모두 해석할 수 있고, 우리나라와 같이 하상의 변화가 매우 심한 하천에서도 쉽게 적용할 수 있는 장점이 있다. 본 연구에서 개발한 SNS 모형은 우리나라 하천에서와 같이 하상의 변화가 매우 심하고, 보와 같은 구조물이 많이 설치되어 있는 하천에서 추가적인 작업없이 바로 적용할 수 있다. 또한 댐 여수로와 같이 매우 빠른 흐름, 도수가 발생하는 흐름에서도 추가적인 내부경계조건없이 다양한 조건의 흐름을 해석할 수 있는 장점이 있다. 부정류 상태의 다양한 흐름을 모의할 수 있고, 상하류 경계조건을 고정하여 부등류를 모의할 수도 있다. 본 연구에서 개발한 SNS 모형은 우리나라의 특별한 상황에 대한 고려가 미흡하였던 기존의 모형에 비해 여러 가지 장점을 지니고 있기 때문에 국내 하천의 다양한 흐름조건에 널리 사용될 수 있을 것으로 판단된다.

• The Journal of the Korea Contents Association
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• v.20 no.3
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• pp.506-514
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• 2020

The purpose of this paper is to examine the factors influencing usage intentions of Social Network Services (SNS) in MICE (Meeting, Incentive travel, Convention, and Exhibit and Event) and moderating effects of gender. This model tests various theoretical research hypotheses relating to MICE industry, SNS characteristics, and Technology Acceptance Model (TAM). The target population of this study is SNS users with MICE participation experience. The results of hypothesis testing are as follows. First, information provision, convenience, service quality and SNS usage experience positively influence attitudes toward SNS. Second, attitude positively influences usage intention of SNS. Finally, information provision and service quality to attitudes toward SNS for males are significantly large than those for females. Convenience and SNS usage experience to attitudes toward SNS for females are significantly large than those for males. And attitude to usage intention toward SNS for males are significantly large than those for females. The results of this study will provide various implications to improve usage intentions of SNS in MICE industry.

• Korean Journal of Social Welfare
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• v.69 no.1
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• pp.223-254
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• 2017

This study was carried out to examine whether the moderated mediating effect of SNS addiction resulting from marital dissatisfaction and loneliness is influenced by gender or size and composition of social capital. 714 married men and women in their 20's to 40's were participated in this study. The data were collected by online research center with quota sampling based on demographical proportion. To analyze this research model, the moderated mediating effect utilizing structural equation was used. The results of this study were summarized as follows. First, it is verified that the loneliness moderated between marital dissatisfaction and SNS addiction. Since the relationship between independent and dependent variable is insignificant, comparison of competition model was able to determine if mediating effect was fully or partially shown. As a result, the complete mediated model was ultimately chosen because its various goodness-of-fit index including $x^2$ performed fairly well. Second, the mediating effect which moderates social capital size was presented in the mediated model between the marital dissatisfaction, loneliness and SNS addiction. Specifically, It implies that group who recognizes their social capital big recognizes the route and effect size more than that who considers their social capital small. And the moderated mediating effect depending on different type of social capital among the marital dissatisfaction and loneliness and between SNS addiction was substantiated. It implies that disequilibration of SNS social capital in face-to-face sphere and in online acted as a danger fact with respect to the marital dissatisfaction, loneliness and SNS addiction. The implications of these findings were discussed, and directions for future studies were also proposed.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.11 no.6
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• pp.61-69
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• 2016

The purpose of this study is to examine the factors influencing usage intention of social network service (SNS) in social enterprise. This model tests various theoretical research hypotheses relating the social enterprise, task-technology fit (TTF), technology acceptance model (TAM), and usage intention of SNS. The data were gathered from 84 questionnaire respondents. Smart partial least square (PLS) 2.0 have been utilized for deriving the study results. The result of hypothesis testing are as follows. First, TTF positively influence perceived usefulness, perceived ease of use, and usage intention of SNS. Second, perceived usefulness positively influence usage intention of SNS. But perceived ease of use does not influence usage intention of SNS. This study will provide theoretical and practical implications of TTF and usage intention of SNS in social enterprise.

• Proceedings of the Korean Society of Computer Information Conference
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• 2021.01a
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• pp.125-126
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• 2021

본 연구는 대학교육에서 학습자 주도수업에 대표적으로 활용되는 PBL-교수학습방법을 SNS기반 온라인 플랫폼에서의 과제수행을 통해 해결하는 PBL-수업모형을 개발하는 것을 목표로 한다. 이를 위해 선행연구 및 이론탐색을 통해 PBL-수업설계에 대한 선행연구를 고찰하고, 적용 가능한 수업모형 및 교육내용을 선정하여 기초내용을 구성한 후 3인의 교육공학 전문가와 5인의 대학교수를 대상으로 FGI 인터뷰 방법을 통하여 연구결과를 도출한다. 과거 PBL-교수학습방법을 적용한 수업설계 들이 모의수행이나 발표 후 토론에 한정되었던 것에 반해 본 연구에서는 SNS기반 온라인 플랫폼에 직접 적용하는 매체제작 및 커뮤니티 활동을 포함하는 수업활동이 도출 되었으며, 실행 가능한 수업모형 개발을 위해 대상자 인터뷰와 분석을 통해 이를 위한 교수학습방법을 설정할 것이다. 본 연구를 통해 제시될 SNS기반 온라인 플랫폼을 활용한 PBL-학습모형은 이후 고등교육기관의 교수학습모형 개발을 위한 기초자료로 활용될 것이다

• Knowledge Management Research
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• v.14 no.5
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• pp.151-176
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• 2013

소셜네트워크 서비스(SNS)를 사용하는 이유는 무엇일까? 게임, 정보의 검색, 시간 보내기, 단순한 반복적인 습관 등 다양한 이유가 있을 수 있겠지만, 가장 공통적인 이유는 재미(fun)이다. 그렇다면 사용자들이 SNS를 이용하면서 느끼는 재미의 개념은 무엇이며 이러한 재미는 어떻게 이루어져 있는가? 라는 의문을 갖게 된다. 재미 현상을 이해하는 것이야말로 SNS현상의 본질을 이해하는 것이 될 것이며, 향후 개발되는 SNS의 많은 부분을 보다 재미있게 만드는데 필요한 단초를 제공할 수 있다는 점에서 매우 중요하다. 이에 본 연구에서는 (1)SNS 사용자들이 어떤 종류의 재미를 느끼는지를 살펴보고, (2)재미를 구하기 위하여 어떤 행동을 하는지를 고찰하였다. 또한, (3)이러한 행동을 체계적인 설명을 위하여 SNS에서 재미를 구하는 가치 양식이 어떻게 달라지는지를 하나의 모형(재미진화모형)으로 제시하였다. 재미진화모형은 보기(seeing), 가지기(having), 하기(doing), 되기(being)4가지 단계로 이루어지며, 각 단계로 진행되면서 몰입(commitment)는 커지게 된다. 보기단계에서는 사실 모든 SNS 행동에서 사람들은 가장 먼저 "보는 것"을 통해 재미를 느낀다. 가지기(having) 단계에서는 보는 것만으로 재미를 지속하기는 어려우며, 정상적인 경우 일정기간이 지나면 그 활동의 구성요소를 소유하고 싶어한다. 하기(doing) 단계에서는 가지기의 재미는 다시 발전하여 그 활동과 직접 관련된 행동으로 나타난다. 마지막으로 되기(being) 단계에서 동일시 과정이 발전하면 보다 성숙한 형태의 재미추구 양식이 나타난다.

• International Commerce and Information Review
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• v.16 no.3
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• pp.3-23
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• 2014

This study focused on causes of use reluctant intention because closed SNS was more active than open SNS was despite tremendous growth of SNS to have negative influence upon not only SNS contents suppliers but also marketing business using SNS. The survey were conducted a total of 205 participants with adult over colleague student, 197 copies that excluded questionnaire with unfaithful answer were used in the analysis, and we used path analysis of structural equation modeling. The results of modified path model showed that interactivity was influenced by value, and then affecting "trust ${\rightarrow}$ satisfaction ${\rightarrow}$ using reluctant intention" path and "satisfaction ${\rightarrow}$ using reluctant intention" path. These result reflected that interactivity have a double-edged sword and value is very important standard to make a positive of negative role of interactivity. These results suggested that interactivity was found to have influence upon not only behavioral willingness that took actions depending upon either improvisation or situation but also behavioral intention path that thought and took actions in reasonable way. The interactivity had double-edged sword to help develop SNS and to produce negative results.

• Journal of Digital Convergence
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• v.13 no.8
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• pp.161-168
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• 2015

Given social problems of social network service (SNS) addiction, it is critical to understand user's formation mechanism of SNS addiction. Since a number of studies have demonstrated the negative outcomes of excessive SNS use, the researchers examined important antecedents of SNS addiction as SNS habit that is considered as a key driver of SNS addiction. Moreover, the effects of self-expression, network management, and information search on SNS addition formation were investigated. The proposed theoretical model was empirically tested by using longitudinal survey data collected from 206 Facebook users. The analysis results indicate that SNS habit plays an important role in forming SNS addiction. Further, self-expression, network management, and information search influence SNS addiction through SNS habit. The analysis results offer some in-depth perspectives to SNS providers and government that establish policies or digital convergence strategies to induce healthy SNS use.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.19 no.5
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• pp.236-243
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• 2018

The purpose of this study was to investigate the mediating effects of parental attachment and ego resiliency in the tendency toward social networking site (SNS) addiction in college students. For this purpose, 382 college students in the Jeju area were surveyed and their responses analyzed. To analyze the collected data, structural equations were implemented using SPSS Statistics version 18.0. According to the results of the study, there is a significant negative correlation between attachment formation and SNS intoxication in college students, and a negative correlation between ego resiliency and SNS addiction. Also, there is a significant positive correlation between formation of parental attachment and ego resiliency in college students, indicating that parental attachment and ego resiliency are significant factors in lowering SNS addiction. Second, in order to examine the mediating effects of ego resiliency in the relationship between the formation of parental attachment and SNS addiction in college students, a research model and a competition model were established and verified. As a result, the relationship between parent attachment and SNS addiction was mediated completely, and the research model is more appropriate. These findings suggest that ego resiliency is of practical significance in seeking ways to improve the problem of SNS addiction in the future. In other words, overuse of SNSs by university students can lead to addiction, but strengthening ego resiliency enables sound SNS use.

• Information Systems Review
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• v.16 no.3
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• pp.135-160
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• 2014

Most Social Network Service (SNS) provide online chat, video and file sharing, blogging and others. Because of this advantage, people depend on SNS to communicate with others. However, recently SNS encourage people to reveal too much information broadly so SNS users are concerned about privacy invasion and data spill. They also feel fatigue in process of touching people they don't know while using SNSs. That is the reason why they attempt to switch from opened SNS to Closed SNS. Therefore, the purpose of this study is to empirically investigate and analyze the effect of the factors on the SNS users' switching behavior when using SNS. To accomplish this purpose, this research adopted "Push-Pull-Mooring (PPM)" framework. The PPM is proposed by population geologist, who used it to explain the incentives of demographic migration. Following PPM model, this research empirically examines the three categories of antecedents for SNS switching intention toward closed SNS: push (i.e., weak connection, privacy concern, relative complexity), pull (i.e., enjoyment, belongingness, peer influence), mooring (i.e., SNS fatigue, user resistance) factors. The survey was conducted for 285 users on SNS communities in Korea. The results of this study are as follows; First, wear connection and privacy concern are significantly related to SNS switching intention. Second, enjoyment and belongingness are significantly related to SNS switching intention. Finally, the results show that SNS fatigue has a moderating effect on the links between push factors and SNS switching Intention. Also, user resistance has a moderating effect on the links between pull factors and SNS switching Intention. These findings contribute to the SNS literature both theoretically and practically.