• Earthquakes and Structures
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• 제17권5호
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• pp.521-532
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• 2019

This paper describes the construction of a laminar box for simulating the earthquake response of soil and structures. The confinement of soil in the transverse direction does not rely on the laminar frame but is instead achieved by two acrylic glass walls. These walls allow the behaviour of soil during an earthquake to be directly observed in future study. The laminar box was used to study the response of soil with structure-footing-soil interaction (SFSI). A single degree-of-freedom (SDOF) structure and a rigid structure, both free standing on the soil, were utilised. The total mass and footing size of the SDOF and rigid structures were the same. The results show that SFSI considering the SDOF structure can affect the soil surface movements and acceleration of the soil at different depths. The acceleration developed at the footing of the SDOF structure is also different from the surface acceleration of free-field soil.

• 한국철도학회:학술대회논문집
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• 한국철도학회 1998년도 추계학술대회 논문집
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• pp.119-128
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• 1998

An electromagnets and a single-sided linear induction motor(SLIM) are used for suspension and propulsion equipment respectively. The electromagnets and SLIM are installed in the same frame, called a bogie, to reduce the volume under the vehicle floor and to raise the response charateristics to follow the track. Then the 3-dimensional forces(thrust force, normal force, side force) generated by SLIM direct]y affect the suspension system as the disturbance force. Moreover, in the running condition, the gap length variation in the electromagnets is the same as the SLIM. Therefore, the mutual interaction between the electromagnets and the SLIM is an important problem to realize the smaller gap length. In this paper, the dynamic interaction is analyzed and confir

• International journal of advanced smart convergence
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• 제8권2호
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• pp.1-7
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• 2019

Drones will evolve from military to personal or social purposes. How can people socially interact with a drone that is familiar to them? This study explored the social proximity of human drone interaction with safety glass wall between participants and drone. The experiment results showed that drone's altitude, size and gender factor did not significantly affect social proxemics as to what extent participants got closer to hovering drones by the limitation of the distance from the safety wall. However, it shows a tendency that participants more closely approached an eye-level drone compared with an overhead drone, and females tended to approach more closely males. This study consequently demonstrated that most participants are nearly ready to allow a near field operation of social drone under safe conditions.

• 융합경영연구
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• 제12권5호
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• pp.41-51
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• 2024

Purpose: This study explores the distinctive characteristics of virtual influencers compared to human influencers and examines how parasocial relationships with human consumers affect brand attitude. The hypothesis suggests that virtual influencers can overcome social distance barriers, emphasizing their role in fostering engagement. Research design, data and methodology: A structural model based on the source credibility model and unique traits of virtual influencers analyzes these dynamics. An online survey conducted in April 2024 garnered responses from 286 participants. Results: Findings reveal that virtual influencers positively impact parasocial interactions, which in turn enhance parasocial relationships and brand attitudes. However, the proposed effect of novelty on brand attitude through parasocial interaction was not statistically supported. Conclusions: This study highlights the unique attributes of virtual influencers, such as anthropomorphism, empathy, and novelty, which enhance consumer engagement through parasocial interactions and influence brand attitude. It provides a comprehensive framework for leveraging virtual influencers in marketing, offering significant advantages in maintaining consistent brand messaging and reducing risks associated with human influencers.

• EDISON SW 활용 경진대회 논문집
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• 제2회(2013년)
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• pp.287-289
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• 2013

How the different thickness of thin films of black-P has an effect on its electronic band structure and structure has been studied by using SIESTA code. Although the interaction between the thin films has something to do with band reduction, it does not affect the inter-atomic distance between two nearest neighbour puckered layers.

• 한국조리학회지
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• 제20권5호
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• pp.71-75
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• 2014

The purpose of this study is to verify antecedent variables that affect emotional labor. The results are as follows. First, display rules positively affected deep acting and negatively affected surface acting. Second, customer contact time positively affected deep acting but did not affect surface acting. Third, the interaction between display rules and customer contact time did not have significant effects on surface acting but negatively affected deep acting. The implications based on these results are as follows. First, theoretically, this study extends the range of leading variables that affect emotional labor and verifies the moderation effects between these variables. Next, practically, this study suggests that presenting harmonious criteria with regards to display rules and customer contact time that fit well into the concept of food service company is a very useful tool to manage emotional labor of the employees. The limitation of this study is that the causal relationship between variables demonstrated in this study cannot be generalized due to convenience sampling and cross sectional research.

• 한국생산제조학회지
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• 제21권5호
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• pp.755-760
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• 2012

In this study, three dimensional cutting force components and surface roughness appeared in high speed cutting by using tungsten carbide endmill tools implanted ion or not found mutual relations through several analysis of statistical dispersion. It is showed that cutting force(Fx) is affect with spindle speed and feed rate, cutting force(Fy) is affect with spindle speed and ion implantation time and cutting force(Fz) is affect with feed rate in interaction through the statistical method of ANOVA of cutting force and surface roughness, it is analyzed that it is affected of spindle speed and feed rate in surface roughness.

• 디지털융복합연구
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• 제14권1호
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• pp.387-398
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• 2016

2000년대 들어 꾸준히 성장한 국내 게임시장 규모는 10조 원 대 진입을 눈앞에 두고 있다. 게임 시장의 규모만 커진 것이 아니라 온라인 게임의 사용 행태도 변하고 있다. 전통적인 비디오 게임과 다르게 온라인 게임은 인터넷을 통해 사회적 상호작용을 허용한다. 온라인 게임은 일상적인 활동이 되었고, 사회적 상호작용은 큰 영향을 미치고 있다. 사회적 상호작용이 긍정적인 영향만을 미치는 것이 아니라 이로 인해 온라인 게임을 과도하게 이용하는 경우도 발생하고 있다. 이러한 상황에서 포괄적으로 바라보았던 사회적 요인을 체계화하여 온라인 게임의 과도한 이용 행태에 미치는 영향을 살펴볼 필요가 있다. 본 연구에서는 사회적 상호작용 요인을 고독 탈피, 가상세계 연계 확대, 현실세계 결속 강화로 세분화하고, 이러한 사회적 상호작용 요인이 온라인 게임 과몰입에 미치는 영향을 파악하였다. 본 연구는 온라인으로 수집된 자료의 분석을 통해 고독 탈피, 가상세계 연계 확대, 현실세계 결속 강화 모두 온라인 게임의 과몰입에 통계적으로 유의한 영향을 준다는 점을 실증하였다.

• International Journal of Computer Science & Network Security
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• 제21권12호
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• pp.45-52
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• 2021

The article proves the relevance of developing conceptual frameworks for managing the quality assurance of logistics activities in the context of socio-economic interaction of their participants. It is established that the fundamental difference of the logistic approach in management from traditional approaches is the allocation of a single management function of previously separated, disparate material flows, as well as economic, technological, information integration of chain links into a single system capable of effective management of these flows. It is substantiated that the functioning of the enterprise as a logistics system can be represented in the form of a triad of logistics components, namely: supply logistics, production logistics, sales logistics. Management of quality assurance processes of logistics activities in the context of socio-economic interaction of their participants is a functional component of the entire logistics system due to the quality of work and interaction of all participants in the implementation of certain activities. The quality of logistics activities will affect the level of economic potential, rationalization and optimization of all logistics flows. It is proved that the management of quality assurance processes of logistics activities in the context of socio-economic interaction of their participants involves the following main areas: the introduction of a quality system of logistics processes; development and implementation of the general strategy of quality improvement at the enterprise; internal integration; controlling. Management of quality assurance processes of logistics activities in the context of socio-economic interaction of its participants requires compliance with the following requirements: systematic and comprehensive management of all flow processes; coordination of criteria and indicators for assessing the effectiveness of the entire logistics system; dissemination of the use and application of information technology; ensuring partnerships and close interaction of all participants in sales networks.

• 산업기술연구
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• 제19권
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• pp.245-251
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• 1999

The joint in the concrete pavement provides a control against transverse or longitudinal cracking at slab, which may be caused by temperature or moisture variation during or after hydration. Without control of cracking, random crack may cause more serious distresses and result in structural or functional failure of pavement system. Sometimes, joint itself, purposed to control crack, may cause a distresses in joint due to its inherent weakness in structural integrity. Thus, the load transfer capacity in joint is very important for serviceability and durability. The purpose of this dissertation was to develop an evaluation system at joints of jointed concrete pavement using finite element analysis was performed using ILLI-SLAB program with a selected variables which might affect fairly to on the performance of transverse joints. The most significant variables were selected from precise analysis. It was concluded that the variables which most significantly affect to pavement deflections are the modulus of subgrade reaction(K) and the modulus of dowel/concrete interaction(G), and limiting criteria on the performance of joints at JCP at 300pci, 500,000 lb/in. respectively.