• 인터넷정보학회논문지
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• 제21권1호
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• pp.87-93
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• 2020

The popularity of social media has led to a variety of communicative behaviors among users. This study targeted Facebook as a representative social medial platform because it has the most subscribers in order to investigate factors that influence Facebook usage. In particular, because a person's behavior is based on how they are perceived by others, self-conscious behavior was examined in the study. Facebook usage and news consumption were examined to ascertain the effects of self-consciousness. An online survey was conducted to examine how private SC and public SC (SCs), affects Facebook usage (profiles and writing posts) and news consumption (clicking "like" and sharing news). 616 participants completed the survey, and results indicated that public SC was positively related to the degree of profile updating and post writing. On the other hand, private SC was positively related to the degree of news sharing. These results suggest that psychological elements significantly predict a user's behavior on Facebook.

• 한국멀티미디어학회:학술대회논문집
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• 한국멀티미디어학회 2000년도 추계학술발표논문집
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• pp.561-566
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• 2000

컴퓨터 통신 시스템은 단말기와 C.P.U와의 접속 방법에 따라 시분할 시스템과 분산 시스템으로 나누어지는데 이들 두 가지 시스템에서 버퍼에서의 큐잉 형태는 각기 다르다. 본고에서 시분할 시스템의 역 다중화기의 큐잉 형태에 대해서 분석하였고 그것은 결국 M/G/1모델로 나타낼 수 있음을 보여주고 있다.

• 보건행정학회지
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• 제26권1호
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• pp.63-70
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• 2016

Background: Selective health benefit was introduced for decreasing economic burden of patients. Medical devices with economic uncertainty have been covered as selective health benefit by National Health Insurance since December 2013. We aimed to analyze impact of selective health benefit to medical expenditure and provider behavior focused on electrosurgery (ultrasonic shears, electrothermal bipolar vessel sealers) for gastric cancer patients covered since December 2014. Methods: We used the National Health Insurance claims data of 2,698 patients underwent gastric cancer surgery between August 2014 and March 2015. Medical cost and patient sharing per inpatient day were analyzed to verify that covering electrosurgery increased medical expenditure and changed provider behavior from open surgery to endoscopic or laparoscopic surgery. Additionally, we analyzed the claim rate of medical device or goods relating gastric endoscopic and laparoscopic surgery. Results: Medical cost and patient sharing per inpatient day were increased after covering electosurgery as selective health benefit (39,724/1,421 won). However, there were no medical expenditure increases after adjusting claim of electosurgery and patient sharing was decreased 1,057 won especially. The coverage of selective health benefit did not increase the claim rate of medical device or goods related endoscopic or laparoscopic surgery, either. Conclusion: Covering electosurgery decreased patient economic burden and did not change of provider behavior. Expanding selective health benefit is needed to decrease economic burden of severe patients. Further study should evaluate the long term effect with accumulated data.

• 한국멀티미디어학회논문지
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• 제25권8호
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• pp.1188-1202
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• 2022

This study aims to investigate what communication phenomenon social viewing is associated with, and how satisfaction with using live commerce affects, taking into account that live commerce is a form of content consumption based on social viewing. In particular, social viewing is classified in this study as message production and sharing activities that influence users' satisfaction with live commerce viewing, as well as how two-dimensional social viewing behaviors are associated with users' perception of social presence. Then, the impact of these factors on improving viewing satisfaction is determined. It is also designed to investigate the moderating effect of social presence and viewing satisfaction as a function of the size of users' social networks by taking into account how social viewing affects the degree of social exchange among users. The findings of the analysis are as follows. First, social viewing behaviors. i.e., sharing and production behavior were identified as strong factors that have a direct impact on social presence and viewing satisfaction. Second, social presence plays a moderating role in the relationship between social viewing behavior and viewing satisfaction. Third, the impact of sharing behavior on social presence and viewing satisfaction was greater than the that of production behavior. Fourth, network size (number of followers and followings) had no direct effect on social reality or viewing satisfaction, but it had a moderating effect on the relationship between production behavior and social presence. Based on the findings, the implications and recommendations were discussed.

• 한국전자거래학회지
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• 제18권1호
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• pp.33-55
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• 2013

개인의 관심사나 사회적 문제를 토론하는 장으로 소셜 네트워크 사이트가 최근 활발하게 쓰인다. 기업에 대한 소식들이 소셜 네트워크 사이트의 사용자들 사이에서 회자되기는 마찬가지다. 이처럼 소셜 네트워크 사이트는 정보가 확산되는 주요 통로로 사용되나, 어떻게 그것이 가능한지에 대한 학문적 이해는 부족한 형편이다. 소셜 네트워크 사이트에서 정보가 전파될 때, 개인과 개인 간의 담화, 혹은 한 개인이 자신의 지인들에게 정보를 알려주는 방법에 따른다. 그런데 이와 같은 개인적 노력으로도 사회적 파장을 불러올 만큼 소셜 네트워크 서비스의 정보 확산은 대단하다. 본 논문은 '정보 매개하기'를 중심으로 어떻게 개인 수준의 정보 전파가 네트워크 수준의 정보 확산을 가져오는지를 이해하려 한다. 특히 정보 매개하기에 있어서 '정보 걸러내기의 효과'의 역할에 관심을 집중했다. 시뮬레이션의 결과를 통해, 정보 매개하기 활동이 정보 전파를 활성화시키며, 나아가 정보 확산에 기여하는 것으로 드러났다. 또한 정보 걸러내기 효과가 있을 때, 매우 작은 확률로 정보 매개하기 활동이 있다고 해도, 그 영향력은 아주 크다는 점을 보였다. 즉, 이미 정보 전파가 있었다는 사실이 다른 사람들의 관심을 끌 수 있다면 비록 소수만이 정보 전파 활동을 하더라도 정보는 아주 빨리 퍼져나갈 수 있다.

• 디지털융복합연구
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• 제17권7호
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• pp.99-108
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• 2019

본 연구에서는 공유자동차 서비스에 대한 지각된 가치들(환경적 가치, 기능적 가치)과 위험, 소비자의 주관적 규범, 친사회적 행동 능력이 서비스에 대한 태도 및 이용의도에 미치는 영향을 분석하였다. 또한 이러한 영향 요인들과 소비자 태도 간의 관계에서 소유욕이 조절변수의 역할을 하는지 탐색하고자 하였다. 중국 소비자 238명의 설문 응답조사 자료를 구조방정식 모형을 이용하여 분석한 결과를 살펴보면 다음과 같다. 공유자동차에 대한 지각된 환경적 및 기능적 가치, 주관적 규범, 친사회적 행동 능력 모두 소비자 태도에 긍정적인 영향을 미쳤으나 공유자동차에 대한 위험지각은 유의한 영향을 미치지 않았다. 또한 환경적 가치 및 주관적 규범이 서비스에 대한 태도에 영향을 미치는 관계에서 소유욕이 조절한다는 점을 알 수 있었다. 이러한 결과를 통하여 본 연구가 공유경제 서비스와 관련된 유용한 마케팅 전략을 제공해줄 수 있을 것으로 기대한다.

• Geomechanics and Engineering
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• 제36권6호
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• pp.545-561
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• 2024

Piled raft foundation has become widely used in the recent years because it can increase bearing capacity of foundation with control settlement. The design for a piled raft in terms vertical load and lateral load need to understands contribution load behavior to raft and pile in piled raft foundation system. The load-bearing behavior of the piled raft, especially concerning lateral loads, is highly complex and challenge to analyze. The complex mechanism of piled rafts can be clarified by using three dimensional (3-D) Finite Element Method (FEM). Therefore, this paper focuses on free-standing head pile group, on-ground piled raft, and embedded raft for the piled raft foundation systems. The lateral resistant of piled raft foundation was investigated in terms of relationship between vertical load, lateral load and displacement, as well as the lateral load sharing of the raft. The results show that both vertical load and raft position significantly impact the lateral load capacity of the piled raft, especially when the vertical load increases and the raft embeds into the soil. On the same condition of vertical settlement and lateral displacement, piled raft experiences a substantial demonstrates a higher capacity for lateral load sharing compared to the on-ground raft. Ultimately, regarding design considerations, the piled raft can reliably support lateral loads while exhibiting behavior within the elastic range, in which it is safe to use.

• The Journal of Asian Finance, Economics and Business
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• 제9권10호
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• pp.201-214
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• 2022

Transformational leadership styles are seen as key to inspiring employees to embrace change, as well as to build a sense of responsibility and autonomy at work. This study aims to examine the impact of managers' emotional capacity on transformational leadership behavior in enterprises in Vietnam. Using quantitative research methodology, through exploratory factor analysis (EFA) and linear structure model (SEM), with survey data of 632 samples who are managers of different levels in the enterprise. Research results show that the emotional capacity of managers has both a direct and indirect impact on transformational leadership behavior through the intermediary factors of knowledge sharing at work and corporate social responsibility for employees. Based on that, the study proposes a number of recommendations to promote transformational leadership behavior in enterprises. The findings of this study have demonstrated the importance and impact of managers' emotional capabilities across multiple dimensions of transformational leadership behavior. These are both theoretical and practical contributions that provide managers with greater insight into their emotional capabilities and the need for transformational leadership behaviors. At the same time, the results of this study will also be an important foundation for further research.

• Journal of Information Technology Applications and Management
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• 제14권4호
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• pp.139-158
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• 2007

Information sharing is key to effective supply chain management. In reality, however, it is impossible to get perfect information. Accordingly, only uncertain information can be accessed in business environment, and thus it is important to deal with the uncertainties of information in managing supply chains. This study adopts meteorological forecast as a typical uncertain information. The meteorological events may affect the demands for various weather-sensitive goods, such as beer, ices, clothes, electricity etc. In this study, a beer distribution game is modified by introducing meterological forecast information provided in a probabilistic format. The behavior patterns of the modified beer supply chains are investigated. for two conditions using the weather forecast with or without an information sharing. A value score is introduced to generalize the well-known performance measures employed in the study of supply chains, i.e.. inventory, backlog, and deviation of orders. The simulation result showed that meterological forecast information used in an information sharing environment was more effective than without information sharing, which emphasizes the synergy of uncertain information added to the information sharing environment.

• 한국정보시스템학회지:정보시스템연구
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• 제29권1호
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• pp.1-22
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• 2020

Purpose Along with increasing use of mobile devices, the sharing economy platform services, which generate profits by sharing products owned or labor, have been activated. A representative example of the sharing economy platform service is Airbnb, which connects providers having idle residential space with users. The results revealed that the cases of superhosts and professional companies had a positive and negative effect on user satisfaction, respectively. Based on signaling theory, this study drew the following implications: residential space providers should make an effort to meet the superhost conditions suggested by Airbnb, and offering residential spaces by individual suppliers rather than professional accommodation companies can more heighten user satisfaction. Design/methodology/approach Because sharing behavior is promoted through trust between interested parties, this study aimed to verify the effects of provider characteristics on user satisfaction in a sharing economy platform service. Specifically, it analyzed user satisfaction, according to host attributes (i.e., "superhost or not," gender, and "professional company or not") among the characteristics of Airbnb suppliers. Findings The results revealed that the cases of superhosts and professional companies had a positive and negative effect on user satisfaction, respectively. Based on these analyses results, this study drew the following implications: residential space providers should make an effort to meet the superhost conditions suggested by Airbnb, and offering residential spaces by individual suppliers rather than professional accommodation companies can more heighten user satisfaction.