• Proceedings of the KIEE Conference
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• 2009.07a
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• pp.1881_1882
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• 2009

Simple quadratic potential functions for unicycle robot path planning are presented, where proposed algorithm for path planning has the different environment for each robot based on LOS(Line Of Sight) between a target and an obstacle, unlike a conventional path planning. In doing so, the proposed algorithm assumes that each swarm robot equips its own vision instead of a ceiling camera. In particular, this paper presents that each robot follows its different local leader. As a result proposed algorithm reduces local minimum problems by the help of each local leader.

• Proceedings of the Korean Institute of Interior Design Conference
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• 2003.05a
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• pp.187-191
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• 2003

Modern interior design is expanding diversely, with the rapid development of technology and change of era. The basic of interior space that is rapidly changing consists of floor, wall and ceiling, and these are formed by materials, materials for structure or finishing materials. In the modern interior space, materials are utilized to present an atmosphere that meets the trend of the dissolution of post-modernism and the trend of minimalism. Accordingly, in this study, designers who take serious view on the relation of space and material, and the relation focusing on completed works, in modern interior design were investigated. The interrelation of the representation of each material, organic space, minimal space, and the space of Oriental fusion style were investigated through the works of modern interior designers, such as Karim Rashid and Ettore Sottsass.

• Korean Institute of Interior Design Journal
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• no.1
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• pp.26-31
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• 1992

The purpose of this study was to determine the effect of a pleasantly designed interior inpro-spatial behavior. For pleasantly designed interior, the existing interior was remodeled through the change of finishing materials for major architectural elements such as wall, floor and ceiling, and changes of furniture and it's arrangement. Prospatial behavior was operationalized as seat arranging behavior and measured through the arranged condition and observable arranging behavior. Time-series design, one of quasi-experimental design was used. The data in this study were extracted from an existing field experimental research. One hundred forty four video tapes recorded during 6 months out of 2 years period ware used. In conclusion , the pro-spartial behavior change was a mid-term positive effect of pleasantly designed environment. In an environmental setting where pro-spatial behavior was most important, a certain time cycle to change the environment needs to be considered.

• Korean Institute of Interior Design Journal
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• no.14
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• pp.55-62
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• 1998

One of the major changes in the information era is that the concept of workplace is changing, Therefore this research is to provide basic data for future home office design by surveying office workers's opinions about preferred design for home office. This research is based on a survey of 215 office workers in Seoul. The major findings are ; Office workers prefer an isolated type of workplace that is arranged by U-shped workstation at home. Office workers preferred ivory color of walls and ceiling in home office, Brown color for the floor and brown ivory beige green and grey colors are preferred for the furniture. For home office furniture office workers put to an importance on desk chair computer table cabinet filbox sofa mobil lack credenza, and tea table.

• Korean Institute of Interior Design Journal
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• no.15
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• pp.39-48
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• 1998

This study has been peformed to investigate storage space types of old-fashioned traditional dwelling units where older couples maintain their traditional farming lives. In this study it is observed that residents of the traditional farm-houses are exposed to higher level of environmental and emotional pressures. However it is also observed that the older residents are generally manifesting a consistent subculture of the old-timers without noticeable complaints. The usage and morphology of storage spaces are as follows: (1) Storage space in the ceiling are under control of old couple and used for seasonally varied farm products and household equipment. (3) All the households use longterm storage space under wooden floor; the hidden ground is used for keeping miscellaneous tools and fermented foods for years. Overall in this stud it is observed that traditional farm houses are well modified for physically and emotionally frail elderly residents.

• Korean Institute of Interior Design Journal
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• no.2
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• pp.29-39
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• 1994

The purpose of this study was to design rural kitchen furnitures. Thirty seven rural houses were selected for this study. Present and past uses of space for cooling and dining were investigated by a field survey method. The Major findings were that ; 1) Sink, mixing, and range centers should be installed in rural kitchen 2) The depth of working center, 550-600mm was recommended. And working space cold be added by 150mm in depth and 100mm in height. The height of working center, 820mm-850mm was recommended . The minimum width of sink was 900 mm and the optimum one was 1200mm. The optimum width of mixing center and cooking center were 600m respectively 3) In the low ceiling of kitchen or the wooden structure of kitchen, a wall cabinet without upper cupboard was recommended. On the basis of the results, four types of rural kitchen furnitures is proposed.

• Proceedings of the Korean Institute of Interior Design Conference
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• 2006.05a
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• pp.87-90
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• 2006

The purpose of this project is to greatly elevate the image of a high-technology wireless communication company by improving its office space environment through remodeling techniques. In order to accomplish this goal, the design concept was established in the direction of harmonious beauty with maximized functionality and aesthetics. Specifically, an efficient traffic line was planned in consideration of the connectivity between mutual spaces, and smooth yet strong formal aesthetics was given to such things as planes, frontal surfaces, and ceiling design, so as to do away with the existing authoritarian atmosphere and create an image of a futuristic company.

• Proceedings of the Korean Institute of Interior Design Conference
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• 2006.05a
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• pp.65-66
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• 2006

The motor show is the most popular show in domestic exhibitions. It provides many interesting events and exhibition programs from small parts of the car to luxury sedans. It should be spatially designed for not only display programs but also various other programs such as concerts or events. And it needs to approach strategic and complex plans for unique stand design because of a great number of visitors' safety and accomodation, and competition with other companies. S motor is the company of middle standing, producing the most luxurious sedans and SUVs. I had to find a display and space composition way to harmonize with luxurious sedans and outdoor vehicles in a booth. The booth had to be distinctive and unique inspite of relatively small and handicaped area compared with other companies' booths. So I designed two major plans; ceiling structure covered whole booth space and office space for staff. These plans could get completely majesty and unique design for booth, events and other programs. And the structure of booth was minimalized for visitors' safety and accomodation in great event time.

• Transactions of the Korean Society of Mechanical Engineers
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• v.18 no.5
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• pp.1288-1300
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• 1994

Mathematical modeling and numerical calculation on the flow and thermal characteristics induced by fire in a partial enclosure are performed. The solution procedures include the Shvab-Zeldovich approximation for the physical transport equations, low Reynolds number k-.epsilon. model for the turbulent fluid flow and Discrete Ordinate method(DOM) to calculate the radiative heat transfer. PMMA(Polymethylmethacrylate) is adopted as a solid fuel. Two different cases are considered : combustions with and without gas radiation occuring in a open cavity for variable pyrolyzing location of PMMA. When the fire source is located at the left-wall, the flow region of flame gas is limited at the left-wall and ceiling and recirculation region of inlet gas is formulated at neat the floor. In case of neglecting the radiative heat transfer, more large flame size and higher temperature is predicted. It is essential to consider the radiative heat transfer for analysis of fire phenomenon.

• Journal of the Korean Society for Aviation and Aeronautics
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• v.19 no.4
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• pp.105-110
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• 2011

The flight test comes at the end of the aircraft development process and is an unique part. The purposes of the flight test are to evaluate the characteristics of the aircraft and validate its design in the real operating environment. Atmospheric considerations are key elements, when the planner of flight test establishes the flight test planning. The primary objective of atmospheric considerations is to ensure safety of the vehicle. The planning through atmospheric considerations can minimize flight cancellations caused by severe weather. In this paper, we present a program for flight suitability distinction, and develop a program for calculation of available sorties.