• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2022.05a
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• pp.35-37
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• 2022

Online video conferencing systems such as Zoom and Discord are mainly used for non-face-to-face work due to their good accessibility and lack restriction of space. However, most online video conferencing systems are difficult to interact in both directions, and problems such as difficulty in communication and lack of immersion are emerging in participants who use them. On the other hand, Metaverse, which has attracted attention with the development of spatial computing, enables smooth interaction like the real world in the three-dimensional virtual world by utilizing hearing, visual, and touch information. In this paper, we propose a method of utilizing the metaverse platform to improve the problem of lack of immersion in the existing online video conferencing system. Through the proposal method, platform users can share and check each other's work screens in a virtual space and exchange various data. In order to improve participants' of immersion, the environment and improvement plan of the metaverse platform were constructed and compared with the existing online video conferencing platform.

• Journal of the Korean Society for Nondestructive Testing
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• v.28 no.6
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• pp.519-523
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• 2008

Poisson's ratio is one of elastic constants of elastic solids. However, it has not attracted attention due to its narrow range and difficult measurement. Transverse wave velocity as well as longitudinal wave velocity should be measured for nondestructive measurement of Poisson's ratio. Hard couplant for transverse wave prevents transducer from scanning over specimen. In the present work, a novel measurement of Poisson's ratio distribution was proposed. Immersion method was employed for the scanning over the specimen. Echo signals of normal beam longitudinal wave were collected. Transverse wave modes generated by mode conversion were identified. From transit time of longitudinal and transverse waves, Poisson's ratio can be determined without information of specimen thickness. This technique was demonstrated for aluminum and steel specimens.

• Proceedings of the Korean Institute of Surface Engineering Conference
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• 2017.05a
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• pp.151.1-151.1
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• 2017

This work studied the corrosion behavior of AZ31 Mg alloy galvanically coupled with Cu during immersion in 0.1 and 0.5 M NaCl solutions by in-situ observation and galvanic corrosion current measurement using a zero resistance ammeter. The corrosion behavior of AZ31 Mg alloy was also studied by salt spray test. The average galvanic corrosion density during 2 h immersion in 0.1 NaCl solution was found to decrease as an exponential function with increasing the surface area ratios between AZ31:Cu or with increasing the distance between AZ31 and Cu. The corrosion of electrodeposited Cu on AZ31 Mg alloy was concentrated at the area next to Cu (about 5 mm for immersion test and 2 mm for salt spray test) and pitting corrosion was accelerated at the area beyond the severely corroded area by the galvanic coupling effect.

• Journal of Digital Convergence
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• v.19 no.1
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• pp.117-124
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• 2021

This study seeks to understand the inter-relationship between employee enthusiasm, trust, immersion and satisfaction of employees working at a hospitality company based in Gwangju Metropolitan City. The purpose of this study is to examine the human resources management of workers in the hospitality industry by grasping the current situation of employees working in the service enterprise. As a result, corporate organizational support in the hospitality industry has a significant impact on the enthusiasm of employees. The enthusiasm of the employee is shown to be trusting, immersing, and satisfying in the work of the employee in the hospitality company, which can be seen as an organization, showing that the employee's passion plays a positive role in trust, immersion and satisfaction. As the employee's enthusiasm is reflected in the quality of the service product as a result, it can be regarded as the quality of the relationship that the employee is responsible for or positive feelings about the company in which he or she is in charge. Personnel management measures are required to strengthen pride and desire to achieve work so that employees can exercise their passion to feel trust, immersion, and satisfaction in their businesses and work. Therefore, it is necessary to provide tangible and intangible organizational support and introduce and implement personnel-related programs to enhance work pride and desire to achieve.

• The Journal of the Korea Contents Association
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• v.8 no.6
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• pp.159-166
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• 2008

The purpose of this research is to investigate empirically the relationship among organization identity, organization immersion, and pride(또는 self-esteem) of taxation public servants. The results of the research showed the following. First, the research showed that gender and work year, as individual characteristic variables, influence a significant effect on organization identity. Second, it turned out that the pride of taxation pubic servants influences a positive effect on organization identity, and groups of lower pride affect organization identity more than groups of higher pride. Third, it turned out that the pride of taxation public servants also influences a positive effect on organization immersion. In other words, taxation public servants with higher pride showed higher organization immersion. Groups of lower pride affect organization immersion more than groups of higher pride. These results verified that higher pride of organization members can strengthen organization identity and organization immersion.

• Cartoon and Animation Studies
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• s.46
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• pp.107-128
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• 2017

Time is an indispensable element in creating a story. This makes comics artists use various time techniques such as prolepsis, summary, ellipsis and flashback to increase immersion in story when they create comics. This is intended to make a study on retrospective structure among various temporal structures. Retrospective structure means progress in different time sequence, and increases immersion by making readers become strained or relaxed. Besides, retrospective structure plays a role of increasing or decreasing the pace of story. The person who systematically put the retrospective structure into shape is $G\acute{e}rard$ Genette. He in his book "Narrative Discourse" classified retrospective structure into three types. These are made up of structure of analepse externes, analepse internes and analepse mixted. This makes a study on retrospective structure in narrative comics based on $G\acute{e}rard$ Genette's retrospective structure. To this end, Kang Full's webtoon was analyzed. The reason to analyze Kang Full's is that this work has storyline where things happening in parental generation is interwined with things in offspring generation, accordingly this is work suitable for studying the retrospective structure. This study is intended to examine whether three retrospective structures suggested by $G\acute{e}rard$ Genette are actually used through an analysis of , and as a result, it is intended to prove the fact that retrospective structure has an effect on immersion in work.

• East Asian Journal of Business Economics (EAJBE)
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• v.8 no.2
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• pp.15-27
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• 2020

Purpose - The purpose of this study is to analyze the relationship between the self-leadership of flight attendant and organizational effectiveness, the self-leadership of flight attendant and customer orientation, and the organizational effectiveness and customer orientation. Research design, data and methodology - To examine these research models, samples were collected from 318 flight attendants during Nov to Dec, 2019. Research Model established hypothesis 1 and hypothesis 2 that the three elements of self-leadership will affect organizational effectiveness and customer orientation. It also established hypothesis 3 that organizational effectiveness will affect customer orientation Results - The analysis on the effect of self-leadership have positive effect both on job satisfaction and organizational immersion. As a result of the relationship between organizational effectiveness and customer orientation, job satisfaction and organizational immersion have positive effect on both voluntary customer orientation and business customer orientation. Conclusions - Self-leadership affected positively on job satisfaction, organizational immersion and business customer orientation. the company have to provide flight attendant with incentives when they achieve good results. Also, company have to expand flight attendant's authority in their work environment. Organizational effectiveness affected positively on customer orientation so company have to give flight attendants with consistent seminars about company's vision and goal.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2011.05a
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• pp.369-371
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• 2011

Since users can experience new type of experiment system using augmentation technology and its data visibility, it is a media that is suited to educational purpose application. This paper developed an augmentation-based experimentation that excludes risks and ehnances immersion in chemical experiment. This virtual chemistry experiment system utilizes users' hands to control 3D objects in experiment through interface that interacts virtual objects without markers that are the cause of losing immersion in existing augmentation system. To maximize immersion effect, we propose a virtual chemistry experiment system that enables collaborative work.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2003.06a
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• pp.678-681
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• 2003

In conventional optical data storage numerical aperture (NA) cannot be over 1 because of diffraction limit. To overcome this limitation. solid immersion lens(SIL) have produced a great interest in near-field optical data storage. In conventional optical recording method, the dual lens system using object lens and SIL had been studied generally. But the conventional SIL system has some critical problems that must be solved. The problems are heat, contamination. alignment of optical components and so on. To solve these problems. this work proposes enhanced SIL which has several advantages for mechanical and optical issues. This new SIL system named elliptic SIL(ESIL) can use evanescent energy in near-field more effectively. In addition. because of applying the inside recording unlike previous surface recording, ESIL can clear up the problems. The design and analysis of ESIL art executed by using CODE V. Also, in this paper we composed actual data recording system and achieved recording experiment by applying ESIL to magneto-optical recording. In conclusion. we analyze the improvement of aerial density and the reasonability of application to real data storage system.

• Korean Journal of Food Science and Technology
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• v.21 no.6
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• pp.735-741
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• 1989

For the accurate prediction of freezing time, probably the most difficult factor to measure and major error source is the surface heat transfer coefficient. In this work, surface heat transfer coefficient were determined for still air freezing and immersion freezing methods by theory of the transient temperature method and confirmed by using a modification of plank's equation to predict the freezing time of ground lean beef. The results showed the cooling rate of immersion freezing was about 11 times faster than that of still air freezing method. A comparison of surface heat transfer coefficient of copper plate and ground lean beef resulted an difference of 25-30% because the food sample surface is not smooth as copper plate. Also, when h-values measured by ground lean beef were applicated to modified model, the accuracy of its results is very high as difference of about 8%.