• Journal of Korea Society of Digital Industry and Information Management
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• v.15 no.1
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• pp.77-86
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• 2019

Comparative analysis to secure safety of Blockchain Many investors have invested in virtual currency such as bit coins as a new investment due to increased popularity of virtual currency around the world. Also, virtual currency such as bit coin has a security technology and it has been relatively proved. popularity of virtual currency is rising as a new investment alternative because of this reason. This paper focused on the block chain's transparency and security of distributed ledger technology, which is relatively safe without third party's intervention. Many governments and companies around the world are developing and working on block chain technological development to introduce due to these reasons However, there are some suggestion that block chain has minor risks to its security. In this paper, it will examine security vulnerabilities from importance of security of Blockchain which relates to transactions of Bitcoin which stored by governments and companies around the world. This paper will propose measure which will improve safety and efficiency of Blockchain technology such as the existing Blockchain method, Blockchain proposal, traceability and awareness about hacking.

• Journal of Fashion Business
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• v.27 no.2
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• pp.70-87
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• 2023

Today, VR, AR, and MR technologies that travel between real world and virtual world are rapidly developing. These technologies are adopted in luxury fashion brands for virtual fashion shows and runways, virtual retail shops and virtual fitting services. Despite its growth potential and social importance, virtual fashion space has been studies insufficiently. Therefore, this study aimed to examine the consumer experience on the virtual fashion space types, components of virtual fashion space, perceived value, and continuous usage intention. Prada, one of the most active luxury fashion brands in the VR field, was selected as the stimulus for an in-depth interview. Participants experienced virtual fashion show space through VR device (Oculus Quest 2 from Meta) before responding to the questions about their experience. Results showed that material space was more like virtual whereas perceptual space felt like reality. Participants could imagine about more virtual image from material space and more real image from perceptual space elements. Moreover, perceptual space enhanced the immersion, presence, and interactivity compared to material space. Most participants perceived that the virtual fashion show was useful and playful, leading to the continuous usage intention. It implies that improvements for some technical limitation from VR device and virtual contents can provide quality consumer experience in the future. Based on results of this study, fashion companies can establish useful marketing strategies for consumers' immersive and playful experiences when introducing virtual fashion space.

• Proceedings of the KIEE Conference
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• 2000.07d
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• pp.3109-3111
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• 2000

Recently. internet applications for efficient cyber education have drawn much interests. The world-wide web provides new opportunities for cyber education over the internet. This paper presents a virtual lab system which can be used on the world-wide web. The proposed virtual lab system provides the improved learning methods which can enhance the educational efficiency in electrical engineering experiments. If the students enter the virtual lab system on the web. they can make experiments on basic electrical and electronic principles through simple mouse manipulation. Since proposed virtual lab system is implemented to describe the actual lab system. the students can obtain similar experimental data through it. Several sample Java applets are illustrated as examples.

• Journal of Fisheries and Marine Sciences Education
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• v.17 no.3
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• pp.427-433
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• 2005

The study of Web GUI(Graphic User Information) system for Virtual Reality System is mainly performed on effective methodology which transform real world data to computing world data. MGIS(Marine Geographic Information System) has its own target on reliable data service by acquisition of geometric information using accurate measurement and graphical visualization. This type of raw data visualization can be built without software tools, yet is incredibly useful for interpreting and communicating data. Even simple visualizations can aid in the interpretation of complex 3D relationships that are frequently encountered in the geosciences. The Virtual Reality Modeling Language provides an easy way for geoscientists to construct complex visualizations that can be viewed with free software. This study propose a three dimensional Web GUI system using MGIS-based three dimensional data models and virtual imaging system. Finally, we design a Web GUI system integrating above data models.

• Archives of design research
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• v.11 no.1
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• pp.303-312
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• 1998

Recently, with the excessive uses of Internet, virtual spaces for the on-line introduced VRML are emerging. The inhabited virtual world includes a complex process and human experiences. The VR interactivity is now being examined, and it is the important aspect for creating VR application which may include navigating the virtual world, turning features on and off, and interacting with other users. Therefore, the study of this field is favored with a competitive advantage to the present and future multimedia designer. Thus, the subject of this thesis is for the design of virtual world, focusing on interactivity. The contents include the types of the VR interactivity, and their classifying and studying, according to the existing theories based on the literature and web sites. The types are for the user navigation, for the user interactions with other users and objects, and for the creation of metaphors. As the results of this study, it is suggested the effective application and the proposal.

• 한국HCI학회:학술대회논문집
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• 2009.02a
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• pp.1287-1292
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• 2009

There have been many experiments and researches of virtual marionettes which mostly focused on controlling the marionettes more delicately and precisely. This paper will prove that performances using virtual marionettes can show more than simply controlling other objects delicately and precisely. The performance that this paper is discussing about used not only a virtual marionette but also an actual marionette. In this performance, a human manipulated an actual marionette and the actual marionette controlled a virtual marionette. This performance is meant to represent a controlling relationship between an actual world and a virtual world. This recursive and duplicate process will show that experiments using virtual marionettes can express more diverse objectives than existing experiments.

• The Journal of the Convergence on Culture Technology
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• v.4 no.4
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• pp.309-316
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• 2018

In this study, we propose a 3D virtual reality based presentation training system to help implement the virtual presentation environment, such as the real world, to present it confidently in the real world. The proposed system provided a realistic and highly engaging presentation and interview environment by analyzing the speakers' voice and behavior in real time to be reflected in the audience of the virtual space. Using HMD and VR Controller that become 6DOF Tracking, the presenter can change the timing and interaction of the virtual space using Kinect, and the virtual space can be changed to various settings set by the user. The presenter will look at presentation files and scripts displayed in separate views within the virtual space to understand the content and master the presentation.

• Cartoon and Animation Studies
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• s.22
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• pp.81-97
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• 2011

The technology of 'Virtual Reality' has placed in advanced tools for human beings' joy and anger together with sorrow and pleasure in our generation. It has recently tried in a variety ways to use as an implication for treatment in the field of Cognitive Psychology. Especially, it widely approaches to human in terms of that a sense of reality in a virtual world through the five senses should reinterpret the meaning of cognition in the real world. Based on this paradigm shift, it allows for new treatment using the technology of virtual reality. A typical example is a field of Therapy in order to overcome panic disorder. It has advantages that in particular development of flexible interaction technologies in a virtual space can lead patients to experience psychological environments rather than physical one. the interaction technology provides environments in which users' five senses can be actively stimulated, it is very useful that information from the experiences in the virtual world allows people to learn through real experiences by renewing potential energies, advantages of Virtual Reality Therapy can be customized treatment by depending on symptoms in patients with panic disorder and are capable of differentiate application for the cure at each stage. It is to treat by leading patients to get accustomed to environments and situations in real world through care process with each symptom and stage. It is helpful that based on A Human-Sensibility Ergonomics, technologies like immersive virtual reality equipment, force-relative feedback and stereophonic sound, and like stimulating the sense of smell make people to induce experiences by stimulating human's five senses. There are many advantages of immersion in virtual world in that the phenomenon such as challenge, interaction, reality, illusion, and cooperation is expanded. As an application for therapy by growing such augmented reality, virtual space and sharing of data through the Internet and also inexpensive its availability have recently expanded the base. There are other benefits of Virtual Reality Therapy offering active interaction environments for cognitive experience which can provide appropriately adjusted environments for patients who are hard to overcome the real situation because of phobia. In addition to that it is safe and economical and patients' confidentiality is assured. Moreover, due to the principles of applying real-time navigation the Virtual Reality Therapy makes modification and supplementation easier and also it can reduce cybersickness because of the supply of Lenticular allowing people to see stereoscopy without eyeglasses, which makes sense of presence clearer. On top of that due to the development of interactive technologies, it is becoming close to sense of reality similar to real world by leading users to navigate by themselves and to operate objects in a virtual space. This paper will therefore examine, although it is of limited, characteristics of application of virtual reality technology based on A Human-Sensibility Ergonomics used for treatment for a disorder. this paper will analyse a range of its application and problems and it will suggest the future possibilities.

• The Journal of Korean Academic Society of Nursing Education
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• v.18 no.1
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• pp.81-94
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• 2012

Purpose: Virtual worlds are emerging in health care as an innovative way of helping clients take responsibility for and promote their own care. Yet, the concept of health promotion education in this environment has not been elucidated. Therefore, we undertook a concept analysis to discover the underlying attributes and contextual basis to generate a conceptual understanding of virtual worlds in the context of health promotion education. Methods: Using Rodgers' evolutionary view of concept development, we analyzed literature on virtual worlds that describe their use to discover critical attributes, antecedents, and consequences of this phenomenon. Eleven studies matching inclusion criteria were reviewed. Results: Analysis of the literature highlighted three areas of important domains: user, simulated environment, and education. This concept analysis extends our understanding of a virtual world for health promotion education. Conclusion: This study may help anticipate future trends in the use of virtual worlds in the context of health promotion education, serving as a stepping-stone for further research on this aspect of the study. The next step should focus on the development of an evaluation tool that can measure the factors identified in this analysis to determine their effects on outcomes and environmental interactions.

• Journal of Drive and Control
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• v.12 no.2
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• pp.27-33
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• 2015

Excavators are versatile earthmoving equipment that are used in civil engineering, hydraulic engineering, grading and landscaping, pipeline construction and mining. Effective operator training is essential to ensure safe and efficient operating of the machine. The virtual reality excavator based on simulation using conventional large size monitors is limited by the inability to provide a realistic real world training experience. We proposed a flexible observation method with a head tracking system to improve user feeling and sensation when operating a virtual reality excavator. First, an excavation simulator is designed by combining an excavator SimMechanics model and the virtual world. Second, a head mounted display (HMD) device is presented to replace the cumbersome large screens. Moreover, an Inertial Measurement Unit (IMU) sensor is mounted to the HMD for tracking the movement of the operator's head. These signals consequently change the virtual viewpoint of the virtual reality excavator. Simulation results were used to analyze the performance of the proposed system.