• 지역사회간호학회지
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• 제33권3호
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• pp.312-320
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• 2022

Purpose: This study was performed to explore the effect of the delivery format on teaching presence, learning presence, and learning outcomes in distance learning of nursing students. Methods: A descriptive survey was conducted to understand teaching presence, learning presence, and learning outcomes depending on the delivery format of distance learning. Quota sampling methodology was used to recruit 295 nursing students from all over the country, and data collection was done from July 27 to September 10, 2020. The first delivery format for distance learning was synchronous learning in which communication between the instructor and students occurred simultaneously. The second delivery format was asynchronous learning in which prerecorded videos were provided and communication did not occur simultaneously. Results: In synchronous learning, teaching presence (especially direct facilitation) and learning presence (especially emotional expression) had a statistical significance that was higher than in asynchronous learning. However, in learning outcomes, there was no statistically significant difference. There were significant positive correlations between teaching presence, learning presence, and learning outcomes, and there were significant positive correlations. Conclusion: It can be suggested that learning outcomes can be improved if presence is improved in the distance learning environment based on the results of this study. It is necessary to add contact with nursing students and instructors to improve teaching presence in the asynchronous learning, and it is necessary to help students express their emotions to improve learning presence.

• 한국정보시스템학회지:정보시스템연구
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• 제27권2호
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• pp.29-52
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• 2018

Purpose As the number of SNS users increases, the importance of SNS advertisement is also increasing. Thus, the purpose of this study is to analyze the effect of factors on effectiveness of SNS advertising, and expand research on users' attitude and behavior intention toward SNS advertising. Design/methodology/approach This study was designed to examine the structural relationships among SNS service attribute, users' cognitive characters, psychological factors, users' attitude and behavior intention toward SNS advertising. Concretely, SNS service attribute was presented as online interactivity, and users' cognitive characters were presented as perceived relevance and perceived intrusiveness. In addition, psychological factors were presented as presence experience and message credibility, users' attitude toward SNS advertising was presented as advertisement attitude and users' behavior intention was presented as WOM. Findings The results showed that online interactivity has a positive effect on presence experience and message credibility, but perceived intrusiveness has a negative effect on presence experience and message credibility. Perceived relevance has a positive effect on presence experience, but does not have significant effect on message credibility. Presence experience and message credibility have positive effects on advertisement attitude and WOM, and advertisement attitude also has a positive effect on WOM. Based on the results from this study, academic and practical implications can be drawn. First, the study extended the scope of research about SNS advertising through focusing on SNS service attribute and SNS users' cognitive characters and identified the relationship between presence experience, message credibility, advertisement attitude and WOM. Second, the results of this research can provide practical guidelines to develop effective advertising strategies for companies which promoting SNS as a marketing tool.

• 한국의류학회지
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• 제46권4호
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• pp.583-599
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• 2022

This study aims to clarify the implications of rapidly growing live commerce in China by examining the multifaceted aspects of social presence, in particular to help small commerce operators and platform companies. It examines the effect of cognitive and affective social presence on consumer engagement by evaluating consumption values and trust in streamers. In this survey study, the responses of 221 individuals residing in large cities of China were analyzed using structural equation modeling. The results showed that cognitive social presence had a positive effect on consumer engagement by mediating the utilitarian value and trust in streamers. Furthermore, affective social presence had a positive effect on consumer engagement through the hedonic value and trust in streamers. Thus, our research provides a new perspective to approaching a multidimensional social presence and understanding consumer behavior in live commerce. Moreover, it contributes to the application and expansion of social presence theory in this field.

• 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.

• 한국멀티미디어학회논문지
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• 제21권8호
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• pp.1002-1020
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• 2018

Virtual reality (VR) technologies, which have been improved of late, offer experiences closer to reality than before. While VR technologies are expected to be an effective medium if used in learning content that cannot be offered in real life, distraction factors in VR technologies may prevent the users' presence and flow, making these technologies ineffective. Therefore, this study, through experiment and observation, analyzed the effect of distraction factors on the user's experience perception and learning effect when using HMD-based immersive VR. Experimental results revealed that the distraction factors were shown to have a negative, albeit not generally significant (except for tactile interactivity), effect on vividness, tactile interactivity, locomotive interactivity, presence, and flow. Ultimately, they were shown to have a negative effect on learning.

• Geomechanics and Engineering
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• 제15권2호
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• pp.739-744
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• 2018

This paper presents the results of numerical modeling studies on the effect of displacements of tunneling in granular soils. Presence of building loads is considered, to find displacement generated at the surface on tunnel. Effect of varying eccentricities of building is simulated, to find influence of building on vertical and horizontal displacement. Studies were carried out in two cases of with and without a geosynthetic layer installed at the bottom of the footing. Results of analysis revealed, the presence of geosynthetic layer under footing, with building placed on centre line, reduced the surface displacements compared to displacement generated without geosynthetic layer. Presence of geosynthetic layer under footing had a dominant effect in reducing displacements in high storey structures. However, when the building was shifted to greater eccentricities from centre line, presence of geosynthetic layer, led to insignificant reduction of displacements on the centre line at the surface.

• 기독교교육논총
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• 제72권
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• pp.165-182
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• 2022

연구 목적 : 본 연구의 목적은 학업성취에 가장 중요한 영향을 미치는 요인 중에서 흥미수준에 따라서 인지적 실재감이 몰입에 미치는 영향을 탐색하기 위한 것이다. 연구 내용 및 방법 : 본 연구는 B대학의 사범학부에서 교직교과목을 수강한 162명을 대상으로 했다. 연구를 위해 흥미수준, 인지적 실재감, 몰입을 설문을 통해 자료를 수집했다. 수집된 자료는 흥미 수준에 따라 인지적 실재감이 몰입에 어떠한 영향을 주는지 검증하기 위해, 흥미 수준의 평균을 기준으로 저집단과 고집단으로 구분하여 다중 회귀 분석을 수행하였다. 그 결과 흥미수준 고집단에서 인지적 실재감의 하위요인 학습 관리 정도가 .071이며, 흥미수준 저집단에서 인지적 실재감의 하위요인 학습 관리 정도가 .143 수준으로 정적인 영향이 있었다. 결론 및 제언 : 이와 같은 결과로, 흥미수준에 따라서 인지적 실재감의 학습 관리 정도가 몰입에 미치는 영향이 확인되었다. 본 연구 결과를 통해 몰입에 있어서 인지적 실재감 지원을 통해 흥미수준을 향상할 수 있는 수업설계 전략을 제언하였다.

• 디지털융복합연구
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• 제17권4호
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• pp.299-307
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• 2019

본 연구는 3D 가상현실(Virtual Reality) 기술을 활용하여 디지털 사이니지 광고를 경험하고 이를 통한 실재감과 상호작용성이 브랜드 경험과 디지털 사이니지 태도에 어떠한 차이가 나타나는지를 실험을 통해 규명하였다. 인지적 실재감, 감성적 실재감, 미디어 실재감과 상호작용성 수준(고 vs. 저)을 독립변인으로 하고 브랜드 경험과 태도를 종속 변인으로 하는 Two-Way MANOVA분석을 실시하였다. 연구결과, 첫째, 인지적 실재감은 상호작용성이 낮은 경우 행동적 경험을 통해 가장 효과적으로 형성되는 것으로 나타났다. 둘째, 감성적 실재감 역시 상호작용성 수준이 낮은 경우 감성적 경험에 긍정적인 영향을 주는 것으로 나타났다. 셋째, 미디어 실재감은 상호작용성 수준이 낮으면 감성적 경험에 긍정적인 영향을 미치는 것으로 나타났다. 본 연구는 디지털 기술을 이용할 경우 적절한 수준의 상호작용성 수준을 통해 미디어 전략과 기술의 특성에 따른 실재감을 전달하는 커뮤니케이션 전략이 요구된다. 향후 연구에서는 상호작용성 수준에 있어 양적 차원이 아닌 질적 차원에서의 접근이 필요하다.

• Geomechanics and Engineering
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• 제25권3호
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• pp.245-251
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• 2021

The present study investigated the ageing effect on compressibility, permeability and shear strength behavior of kaolin and bentonite samples in the presence of NaCl and CaCl₂ solutions. The compressibility, permeability and shear strength parameters were determined on the 60, 190, and 250 days cured samples. The results have shown that, the kaolin sample becomes more compressible in the presence Ca²⁺ ions with ageing. Generally, the normalized compression index values of bentonite samples increased at the end of 60 days and 250 days curing time periods. The normalized permeability value of kaolin decreased by ageing in the presence of Na⁺ ions almost twofold. The permeability values of bentonite increased both in NaCl and CaCl₂ solutions during ageing. In the presence of Na⁺ ions kaolin had higher max. shear stress value than Ca²⁺ ions. When the max. shear stress values of 0, 60 and 190 days samples were compared, it was seen that NaCl solution had no significant effect on the shear strength of kaolin sample. However, the shear strength of kaolin increased in the CaCl₂ solution during ageing. In the presence of Ca²⁺ ions the max. shear stress value of bentonite was higher. The results of this study have shown that ageing has significant effects on the compressibility, permeability and shear strength of kaolinitic and bentonitic clayey soils.

• 한국융합학회논문지
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• 제10권6호
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• pp.139-146
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• 2019

본 연구는 HMD 가상현실 광고를 경험한 사용자가 현존감(인지적, 감성적, 미디어 현존감)과 인게이지먼트 수준에 따라 광고태도와 기억 효과에 어떠한 차이가 나타나는지를 실증적으로 살펴보았다. 특히 기억 효과의 경우 사용자가 광고를 통해 기억 하는 정보를 '개별적인 속성 기억정보(ARM: Attribute-Related Memory)'와 '종합적인 평가 기억정보(GRM: Global-Related Memory)'로 구분하여 연구를 진행하였다. 연구결과, 첫째, HMD 기반 가상현실 광고에 대한 태도는 현존감의 유형에 상관없이 모두 긍정적인 태도를 형성하였다. 둘째, 가상현실 광고에서는 인게이지먼트 수준이 낮으면 제품 속성 중심의 정보들을 기억하는 ARM이 증가하나 반대로 인게이지먼트 수준이 높으면 제품에 대한 태도 중심의 평가적 정보에 대한 기억인 GRM이 증가하는 것으로 나타났다. 셋째, 인지적 현존감과 미디어 현존감은 모두 인게이지먼트 수준이 낮으면 ARM이 GRM보다 많이 기억하는 것으로 나타났다. 향후 연구에서는 연구의 일반화를 위해 피험자 수를 늘리고 가외 변인을 줄일 수 있는 실험물 조작이 요구된다.