• The Korean Journal of Emergency Medical Services
• /
• v.25 no.1
• /
• pp.135-146
• /
• 2021

Purpose: This study aimed to evaluate the Citizen-Corps-Active-In-Disaster (CAIND) according to a new viewpoint based on changes in basic theoretical concepts and establish a development plan. Methods: A documentary survey was administered, and the study followed the technical approach method. Detailed information on CAIND was taken from scholarly monographs, specialty publications, and previous studies, including master and doctorate dissertations. Results: CAIND may be defined as legal auxiliary organizations composed of local residents who volunteer to prepare for "all kinds of disasters as well as prevention activities" and instill the ideology of "leading service organizations of safety as a form of community involvement," "resident-friendly organizational activities based on autonomous operation," and "performing activities which supplement their demands according to the realization of social welfare and regional conditions." Conclusion: The newly established basic theoretical concept included the concepts of "professionalism and possibilities," "social expandability," "voluntary participation," and "the realization and complementation of social welfare"

• The Bulletin of The Korean Astronomical Society
• /
• v.46 no.2
• /
• pp.42.1-42.1
• /
• 2021

Galaxy/Halo finding based on the friends-of-friend (FoF) algorithm has been widely adopted for its simplicity and expandability to the phase-space. However, cosmological simulations have been progressively bigger in size and more accurate in resolutions, resulting in that galaxy/halo finding gets computationally expensive more and more. In fact, we confirm this issue through our exercise of applying the 6-dimensional (6D) FoF galaxy finder code, VELOCIraptor (Elahi et al.2019) on the NewHorizon simulation (Dubois et al. 2021), in which typical galaxies with about 1e11 M_sun (10⁷ particles) are identified with very low speed (longer than a day). We have applied several improvements to the original VELOCIraptor code that solve the low-performance problem of galaxy finding on a simulation with high resolutions. Our modifications find the exact same FoF group and can be readily applied to any tree-based FoF code, achieving a 2700 (12) times speedup in the 3D (6D) FoF search compared to the original execution. We applied the updated version of VELOCIraptor on the entire NewHorizon simulation (834 snapshots) and identified its galaxies and halos. We present several quick comparisons of galaxy properties with those with GALAXYMaker data.

• Journal of Korean Society of Industrial and Systems Engineering
• /
• v.46 no.3
• /
• pp.32-40
• /
• 2023

Recently, there are some outdoor floor advertising lighting devices as one of the active marketing methods. However, for outdoor use, there are many restrictions due to the Outdoor Advertisement Act, according to requiring high-output heat generation, waterproofing, and AC power, etc. The purpose of this study is to develop a Duo Light product optimized for indoor use through publicity and information guidance in normal times and automatic evacuation route guidance display in case of disaster, in conjunction with disaster safety. To that end, patent search and patent association analyses were conducted, and a comparative analysis with commercial products was conducted as a case study. In addition, prototypes were designed and produced through the review of operation principles, where field environment surveys and self-tests were conducted. Also, technology roadmaps were presented by preparing plans for expandability and advancement of products. For the analysis of technology commercialization, the feasibility of technology commercialization was examined through the analysis of Jolly's Model and Lean Canvas Model. The results of this study will be able to contribute to minimize human damage through the effective response to disasters, which can increase the effect of indoor advertising by using the proposed indoor floor advertising lighting device in advertising and disaster situations.

• International Journal of Internet, Broadcasting and Communication
• /
• v.15 no.4
• /
• pp.160-165
• /
• 2023

The pixel art style evolved from the shortcomings of computer image display technology has gradually transformed from a technical limitation into a widely recognized form of artistic expression since development in the early 20th century. This study analyzes the application and characteristics of the expandability of pixel art style design content in sub industries such as physical goods, environmental design, website design, digital art and illustration in the design field. It aims to explore the visual expression and sustainable development form of pixel art style under the development of new media technology that contradicts traditional technological concepts. The research results show that although the pixel art style generally pursues external visual features such as pixelated visual effects, sawtooth and matrix arrangements, its expansion in the art field shows a unique diversity of visual expressions. It has become an important means to convey nostalgic emotions and cultural values. Through this research, we hope to inspire more academic researchers and technology practitioners to explore the development potential of the pixel art style in emerging fields and promote its innovative application in design practice.

• Journal of Digital Convergence
• /
• v.11 no.2
• /
• pp.59-70
• /
• 2013

The arcade game market is 2nd big market in the world following console game market. It is a driving force of growth for game industry but its Korean case was decreasing growth of game industry by various kinds of factors. Therefore, it is placed too much emphasis on online game industry and it lost industry growth power. The characteristics of arcade game are spatiality, expandability of device, rewardability, amusemenability. The importance of arcade game are development of new device and freedom of application it but it is restricted by prior deliberation and regulation of industry in korea. Many problems arise from classifying speculation device to arcade game and relaxation of regulation. In this paper, we analyze effectiveness from policy change in Arcade game industry, especially we focused on regulation policy. Also, we found problems and suggested alternatives by comparision on policy of foreign country.

• Journal of Service Research and Studies
• /
• v.6 no.2
• /
• pp.37-49
• /
• 2016

Due to the expandability of smartphone, the mobile application market is growing explosively. However, as happens in other digital contents markets, piracy of mobile applications is prevalent. This study investigated the effects of behavioral factors on smartphone application piracy. The research model consists of factors from the theory of planned behavior model - subjective norms, attitudes toward piracy and perceptions of behavioral control. In addition, perceived consequences, past behavior and habit was included. The past behavior of PC software piracy was a meaningful predictor of habit, and habit was found to influence significantly the smartphone piracy intention. The result also shows that perceived benefit had significant effect on attitude, but both perceived legal and technical risk were not significantly related to attitude. Implications for research and practice are discussed.

• Journal of Digital Convergence
• /
• v.14 no.5
• /
• pp.421-426
• /
• 2016

This study suggests a board fence design with a convergence-style mural. The basic structure contains pictorial factors with mural paintings on the fence. It is also equipped with electricity facilities inside the fence itself, so it has not only the unique function of the fence but also the complexity and expandability in order to be used as a garden lighting and security alarm system. All the components meet the standard so they can be manufactured in a factory. Through this design proposal, this study tries to suggest a fence which encourages personal or social communication one another as well as the basic function of the fence. As a result, the fence realizes a broad convergence function of its usefulness for social functioning such as the crime prevention as well as an esthetic function.

• The Journal of Society for e-Business Studies
• /
• v.18 no.3
• /
• pp.17-43
• /
• 2013

This research is to assess the relationship Big Data attributes and disaster response process. The hypothesis are designed to form decision making between situation awareness and disaster response by defining major attribute of Big Data(Volume, Variety, Velocity, Complexity). It is proved whether there is a moderating effect in cause-and-effect relationship by visualizing Big Data. To test the hypotheses, it was conducted a questionnaire survey of civil servants in charge of disaster-related government employees, and collected 320 data(without 12 undependable responses). The research findings are suggested the attributes of accumulation, expandability, flexibility, real-time, analytical, combination of Big Data have a strong effect on disaster manager's situation awareness.

• The Journal of the Korea Contents Association
• /
• v.14 no.4
• /
• pp.397-406
• /
• 2014

Recently the existing urban facility management integrating with advanced IT has been created more effective and various service for solving the problems what are the inadequacy of operating system, data continuity and expandability, etc. Therefore this study analyzed the research trend of BIM based urban facility maintenance, and implemented the environment with smart facility maintenance function and facility information system. Also this suggested the BIM based maintenance system framework after considerations as system operation and construction are deducted for development of system managing urban facility like bridge and tunnel. The output will be used as preliminary data for the study of development of maintenance system and derivation of real scenarios.

• Transactions of the Korean Society of Mechanical Engineers A
• /
• v.21 no.9
• /
• pp.1373-1384
• /
• 1997

There have been a number of expert systems which are concerned with the design of machine elements such as gear, shaft, bearing and so on. However the design of more complicated systems such as gear dreives are still difficult. Thus, in consideration of the integrative nature of the system, we develop a design support system for gear drives which is composed of various machine elements-gear, shaft, bearing, key and so on. Design systems for each machine element are developed and integrated through object-oriented approach. Databases essential for data reference and/or data control in the design process are built up independently and interface to the main program. Expert systems are also developed and integrated for intelligent support to the designer, in those of the determination of gear specification and the selection of bearing types. Through the integration of design environment for each machine element, it is expected to increase the convenience in the design process and the stability of the design solution. And also the system management, including addition of various design/analysis modules and expansion to the gear drives of other types, can be conveniently achieved since the system has developed under due consideration of its efficiency and expandability through object-oriented programming approach.