• Journal of Korea Game Society
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• v.11 no.1
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• pp.37-46
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• 2011

Due to the advent of high performance feature-phone and smart-phone, the scale of mobile games and the member of developers are increased rapidly. The production process of mobile games is changing to meet these needs. Tools for efficient program development are produced worldwide, but tool's research for the event direction is inadequate. In the event direction, the game designers play more important roles than programmers. In this paper, we develop the mobile game event direction tool for game designers. And we make the events of the released mobile games to test the efficiency and usefulness of tool that we developed. The result shows that the performance is enhanced about 15% in development period.

• Journal of Institute of Control, Robotics and Systems
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• v.18 no.2
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• pp.126-132
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• 2012

The technique for estimation of sound source direction is one of the important methods necessary for various engineering fields such as monitoring system, military services and so on. As a new approach for estimation of sound source direction, this paper propose the bio-mimetic localization sensor based on mechanically coupling structure motivated by hearing structure of fly, Ormia Ochracea. This creature is known for its outstanding recognition ability to the sound which has large wavelength compared to its own size. ITTF (Inter-Tympanal Transfer Function) which is the transfer function between displacements of the tympanal membranes on each side has the all inter-tympanal information dependent on sound direction. The peak and notch features of desired ITTF can be generated by using the appropriate mechanical properties. A example of estimation of sound source direction using generated ITTF with monotonically changing notch and peak patterns is shown.

• Transactions of the Society of Information Storage Systems
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• v.7 no.1
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• pp.19-24
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• 2011

Holographic Data Storage System, one of the next generation data storage devices, is a 2-dimensional page oriented memory system using volume holograms in writing and retrieving process. Recently photopolymer with disc type substrate was selected as a media for the Holographic Data Storage System. The disc tilt occurs when the media rotates and the external disturbance applies. The disc tilt causes the change of the angle between the reference beam and the media, the data cannot be retrieved with the right angle or other data page is retrieved. The tilt is generated in a 2-axis direction (tangential, radial). The tangential tilt direction is the same with the multiplexing plane, while the radial tilt direction is a perpendicular to the multiplexing plane. In this research we propose 2-axis tilt angle servo system. The tilt errors are measured by using external photo detector and the additional red laser. Then the tangential direction tilt is compensated by using the galvano mirror. Also the radial direction tilt is compensated by the rotating prism between the relay lens in the reference field. Finally we confirm the compensation results through the Signal to Noise Ratio(SNR) and Bit Error Rate(BER).

• Journal of the Korea Convergence Society
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• v.10 no.1
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• pp.1-6
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• 2019

In this paper, we have studied a direction finding method of the radio signal by comparing the phase difference and its pattern from the uniform circular array antenna. In the phase comparison direction finding, if the length of the antenna baseline is longer than 0.5 wavelength of the incident signal, azimuth ambiguity occurs in which two or more azimuth angles are calculated in the same phase difference. The azimuthal ambiguity is removed by fusing the phase difference of the 5 antennas. The developed ambiguity elimination technology reduces the azimuth error where the antenna baseline is shorter than 1.236 wavelength in the uniform circular array with five antennas. This algorithm is very useful for the design of direction finder of an electronic information system.

• Journal of the Korea Convergence Society
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• v.8 no.11
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• pp.233-240
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• 2017

In recent years, graphics authoring tools have evolved into a variety of formats in line with the rapidly changing digital design field. However, in the field of interface design, screen shape and size depending on the user's environment, it needs more flexible and scalable authoring tools. Along with the emergence of variety of new tools, work processes are also changing. This study investigates what kinds of graphic authoring tools are currently used by designers and compared the result to the case of overseas and examined the difference in the environment of graphic authoring tool. This study looked at criteria and satisfaction of designers choosing authoring tools and how the choice depends on the type of company we are working in and the type of project we are involved in. Research shows that the choice of authoring tools depends on the type and efficiency of the project. Based on this, a reference is provided to establish the standard and working environment for designers and companies to select graphic authoring tools and propose the future direction of graphic authoring tool environments.

• Journal of The Korea Institute of Healthcare Architecture
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• v.27 no.3
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• pp.17-26
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• 2021

Purpose: This study is a case study in which the space was improved by applying the design direction derived through the theoretical basis and service design process to the outpatient department and health examination center in mental health facilities used by various stakeholders. And it aims to present implications through this. Methods: The research method is based on the analysis of the service design process with a focus on literature review. Results: As a result of deriving the design direction, it was organized into 1) improvement of spatial arrangement, 2) improvement of wayfinding system, and 3) creation of comfortable environment. The design improvement plan suggested division of areas, change of nurse station location, creation of a pleasant waiting space for the outpatient department, reinforcement of access, improvement of room relocation and flow, and increased comfort of common spaces for the health examination center. Implications: First, it is necessary to expand research and application of spatial planning and environmental design reflecting the characteristics of patients and environments of mental health institutions. Second, in the medical environment, the divided territoriality should be reviewed for various stakeholders as well as the coexistence. Third, it is necessary to promote medical service and environmental improvement through the service design process.

• Journal of the Korean housing association
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• v.16 no.4
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• pp.17-28
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• 2005

The purpose of this study was to find out the residents' needs fur rural houses and to suggest the policy directions for developing Korean rural viewscape houses. The subjects were 386 houses and residents. They were selected according to accessibility, area characteristics, administrative district, and village types. The data were collected by using the interview and observation method based on the questionnaire. By analyzing the residents' needs for rural houses, the following conclusions were derived: 1) In order to preserve the rural characteristic, the government should lead to establish the yard space and the exterior design factors such as wall material and color, and the shape, material, and color of roof. 2) At the same time, the government should provide the residents with the subsidy for house improvement, so that they can build the desirabe size of house and the aged remodel their houses. 3) The contemporary design model of rural Han-ok should be developed and built. 4) The new rural house model improving roof design should be developed, because present houses with slab roofs and skirt roofs spoil the harmony with the rural natural environment. 5) The direction of rural houses for viewscape was defined as to satisfy residents' needs for convenient housing lift and to harmony visual and physical factors - building form, material and color - involving Korean rural housing culture.

• The Research Journal of the Costume Culture
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• v.17 no.5
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• pp.758-768
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• 2009

This study aims to analyze contemporary women's sense of fashion aesthetic by looking into the design and trend of T-panties, which have now carved out a new niche in the world's 21st century female underwear markets. By this, I'd like to reassure readers of the importance of T-panties, which has only been recently recognized, and more generally suggests the future direction of prominent T-panty design development. This study aims to analyze contemporary women's sense of fashion aesthetic by looking into the design and trend of T-panties, which have now carved out a new niche in the world's 21st century female underwear markets. By this, I'd like to reassure readers of the importance of T-panties, which has only been recently recognized, and more generally suggests the future direction of prominent T-panty design development. The domestic formativeness of all styles is divided into three types: modern feminine, mono-bosom, and utopian narcissist image. This study is baseds on the documents study.

• The KSFM Journal of Fluid Machinery
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• v.5 no.3 s.16
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• pp.40-45
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• 2002

Since the previous cut-and-try design algorithm requires much cost and time, the automated design technique with the CFD and optimum design algorithm has recently been concerned. In this work, the Navier-Stokes equation was solved to gain more detailed viscous flow information of cascade with rotor-stator interactions. The H-grid embedded by O-grid was generated to obtain more accurate solution by eliminating the branch cut of H-grid near airfoil surface. To handle the relative motion of the rotor to the stationary stator, the sliding multiblock method was applied and the cubic-spline interpolation was used on the block interface boundary. To validate present procedure, the time-averaged aerodynamic loads were compared with experimeatal data. A good agreement was obtained. The Modified Method of Feasible Direction (MMFD) was used to carry out the sensitivity analysis of the change of aerodynamic performance by the changes of the cascade geometry. The present optimization of the cascade gave a dramatic reduction of the drag while the lift maintains at the value within the user-specified tolerance.

• Transactions of the Korean Society of Automotive Engineers
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• v.21 no.4
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• pp.77-82
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• 2013

In this paper, the design of experiment with two-way factorial design was adopted and from that, optimum values of welding variables including the welding speed and rotation speed were found to improve the strength of AZ31 magnesium alloy sheets joined by the friction stir technique. Tool with shoulder diameter of 12 mm and pin diameter of 3.5 mm was used. Also the welding direction was aligned with the material rolling direction, and dimensions of the AZ31 magnesium alloy sheets were $100{\times}100{\times}2mm$. Conditions of rotation speed were 1000, 1100 and 1200 rpm and those of welding speed were 200, 300 and 400 mm/min. As far as this work is concerned, the optimal conditions for friction stir joint were predicted as the rotation speed of 1200 rpm and welding speed of 200 mm/min.