• Korean Institute of Interior Design Journal
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• no.21
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• pp.10-16
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• 1999

Mathematics is considered to the beginning of designing thinking because of the sense of logical order system. In this study, it was regarded the mathematics as the logic and the measurement of design system. as is often the case in history, mathematics, it is regard as conceptual model of architectural though, as aesthetic proportional measure and the mirror of thought. The direction of this study is rather multi-sided approaching to the spatial concept than one-sided plane. It is multi-acceptable way to apply mathematical principle to the pace and to be a flexible one. And boundary of interpretation of the flexibility means potential use-ability, and the strictly meaning of flexibility means that the acception of the various Secession and the Change of space. And the various interpretation of the flexibility only can expressed in the relation of opposite concept: the assembly and the disassembly, the expand and the decease, the open and the close and the construct and the de-construct. Mathematics provide the resonable way in architectural thinking and endow the order as logical organizatiov. Regarding these facts, this research is for making it possible to consider the expression property of interior space combination as the way of understanding the accepting of the changes of the times with the mathematical induction, using the rational method like the mathematical arrangement organizatiov.

• Archives of design research
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• v.16 no.1
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• pp.159-168
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• 2003

Modern fashion shop is changed by the changing of fashion style. And as purchasing pattern is changed to consuming pattern which has strong individuality, functions as space which reflet characteristics of products and consumers in order to present sensitive and individual image are also required, besides conventional concept as space which simply focused on sale. Meanwhile, in the 1980's, the fashion presented retro mood modernly by popularization of post-modernism and introduced minimalism that is one of the anti-cultures in the 1960's. Recently minimalistic trends which are expressed by various attempts and a new point of view are introduced to the fashion shop by interior designer. Therefore, in this study, minimalistic characteristics which appear in the composition of interior space of the modern fashion shop are researched by theoretical consideration and analysis of examples and consistent direction of fashion shop is presented.

• Korean Institute of Interior Design Journal
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• v.18 no.6
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• pp.3-11
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• 2009

The ratio of old persons among the total population is rapidly increasing and the apartment has become to the representative housing type in Korea. This means that many old persons would live in multi-family houses. Therefore the study was intended to examine the preferred characteristics of interior space organization in multi-family house by the aged. The characteristics were the number and usage of bedroom, necessity and type of dress room, type of living room, arrangement of work centers in kitchen, LDK type, the number and layout of bathroom, and type of entrance and balcony. The subjects were 122 old persons who lived in multi-family houses in Ulsan. The individual interview was carried out for collecting the data. The results were as the followings; The characteristics of interior space organization in multi-family houses preferred by the elderly were three bedroom, two bathroom, DK or LDK type, open planned living room, L shape arrangement of kitchen work center, entrance connected directly to outdoor space such as elevator hall or corridor, and the balcony located in front of living room and at the back of small bedroom. Even thouth the average age of population has increased, many apartments still be planned and provided without consideration of old persons. This study would contribute to plan the multi-family houses for the elderly.

• Korean Institute of Interior Design Journal
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• no.18
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• pp.103-109
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• 1999

The purpose of this research is to suggest the ultimate solution to the interior elements and ways to express specific function within interior design of the new high-speed train station in Korea through careful studies based on the characteristics of each areas in the stations. During the research, it became very clear that the most important points in designing of the high speed train station's interior space can be found from close examination on whether each space allocation was thoughtfully organized to provide enough space to accommodate various activities of the users. Another point is to realize, within the space program, that there should be a clear understanding of the future expansion plan and reserving sufficient areas for the future growth. Also the problem of requiring larger floor areas to accommodate various functions divided by separate units must be recognized simultaneously during the programming. The new high-sped train must be able to function as a multi service facility of the future. In summary this research is to present datas and suggestion to various areas in the station and redefine its new meaning of train station space program with much borader concept which can be adopted to the process of better space programing.

• The Journal of the Korea Contents Association
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• v.16 no.2
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• pp.143-151
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• 2016

Many people interested in indoor air quality monitoring since they spend a majority of their time indoors such as homes and offices. This paper proposes the effective indoor air quality monitoring system and it can gauge carbon dioxide, particulate matter and VOCs(Volatile Organic Compounds) which can be harmful to humans. The proposed system is composed of three main modules which are device, web server, and mobile application. In order to evaluate the performance, we tested two cases which are candle and smoke. We monitor the condition of indoor air quality with our mobile application. Also, we developed the information graphics to compare the condition of air quality between indoor and outdoor and this mobile application improves usability.

• The Magazine of the Society of Air-Conditioning and Refrigerating Engineers of Korea
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• v.33 no.6
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• pp.32-36
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• 2004

주택의 공기질 환경에 대하여 사회적 이슈가 된 새집증후군에 대한 언론매체의 집중적 보도와 실내 공기질이 인체에 미치는 영향에 대한 연구보고서의 잇따른 발표에 따라 실내 공기 질에 대한 관심이 점점 더 고조되고 있는 시점에 환경부의 실내공기질 관리법에 의해 2004년 5월부터 신축되는 공동주택의 경우 포름알테히드와 VOCs등 새집에서 발생되는 유해 물질을 입주 전 측정하여 공고하여야 한다는 법이 제정이 되어있다. 따라서 각 건설사 및 관련 업계에서는 실내의공기질을 개선하기 위한 다양한 방법을 연구하고 있으며 일차적으로 유해오염물질이 발생되지 않는 건축자재를 사용하는 근본적인 오염원인을 제거하는 source control를 선행을 하고 2차적으로 거주자가 주거생활을 하면서 발생시키는 오염물질인 $CO_2$및 분진 냄새 등은 강제환기를 통해서 개선시키는 방법을 채택하여 실내공기 질을 개선하고자 노력하고 있다. (중략)

• The Journal of Korean Institute of Communications and Information Sciences
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• v.35 no.6B
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• pp.888-894
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• 2010

For the indoor positioning, wireless fingerprinting is most favorable because fingerprinting is most accurate among the technique for wireless network based indoor positioning which does not require any special equipments dedicated for positioning. The deployment of a fingerprinting method consists of off-line phase and on-line phase and more efficient and accurate methods have been studied. This paper proposes a bayesian algorithm for wireless fingerprinting and indoor location determination using fuzzy clustering with bayesian learning as a statistical learning theory.

• Proceedings of the Korea Information Processing Society Conference
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• 2016.04a
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• pp.139-141
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• 2016

본 논문에서는 실시간 실내 다중 이동 로봇 충돌 회피에 관한 연구이다. 충돌 회피 기법에는 센서를 이용한 포텐셜 필드 기법 등 다양한 방법[1,2,3]이 있지만 좁은 실내 공간에서 사용하기에는 제한점이 많다. 본 논문에서 제안하는 시스템은 서버, 감시카메라, 로봇 세 가지로 구성되어 있으며 여러 모듈간 상호작용을 통한 충돌 회피 시스템을 제안한다. 감시카메라는 서버에게 실시간으로 영상을 제공해 실내 상황을 파악하게 한다. 서버는 실내 공간에 있는 모든 로봇을 관리하고 감시카메라로부터 받은 영상을 이용한 맵 매칭을 통해 로봇의 위치를 파악한다. 그다음 로봇의 위치를 토대로 경로를 생성하여 로봇에게 전송한다. 로봇 또한 서버에게 경로, 속도를 전송 받아 목적지로 이동하며 서버로부터 지속적인 관리를 받아 충돌을 방지해 목적지까지 신속하고 정확하게 이동하는 것이 본 논문의 목적이다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2016.10a
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• pp.461-462
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• 2016

IPS 측위는 GPS음영 지역인 실내의 특정 위치 정보를 판단하는 시스템으로 현재 위치에서 발생되는 신호 정보를 수집하는 시스템과 이 신호들로 구성된 실내 측위 지도, 측위 위치를 결정하기 위한 알고리즘 등에 따라 여러 종류로 나누어진다. 대표적인 IPS로 2.4Ghz, 5.0GHz 대역의 무선 신호(WiFi, BLE, Sensor Network, etc)를 활용하는 RF신호 기반 WPS 등이 있다. RF 신호를 기반으로 하는 실내 측위는 발생 기기의 고장, 장애물 발생, 채널 간섭 현상 등으로 인해 측위 시점 수집된 신호와 구축된 지도의 신호 정보가 달라 측위 정확도가 낮아지는 경우가 발생한다. 본 논문에서는 앞서 언급한 문제점을 해결하기 위해 기존 RF 환경을 사용하는 IPS 방안에 대하여 분석한다. 또한 RF 이외의 실내 측위 기술들에 대해서도 설명하고 측위 정확도를 위해 단일 측위 방식이 아닌 복합 측위 방식에 대한 설계를 제안한다.

• Journal of Life Science
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• v.22 no.8
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• pp.1085-1091
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• 2012

The purpose of this study is to investigate the effects of indoor and outdoor exercise environments on bone mineral density and body composition in old women. A total of 26 old women were randomly divided into two groups: an indoor exercise group (IE, n=13) and an outdoor exercise group (OE, n=13). The exercise groups performed moderate exercise (HR max 50~70%; RPE 11-15) three times a week for 60 minutes over 20 weeks. After exercise training, bone mineral density was significantly improved in the OE group as compared with the IE group. Body fat mass was significantly decreased in the IE group. Weight, lean body mass, and body fat mass were significantly decreased in the OE group. Body mass index was significantly decreased in the outdoor exercise group as compared to the IE group. Our findings show that a 20-week program of outdoor exercise training improves bone mineral density and body composition in old women. As mentioned above, it has been found that engaging in an outdoor exercise program for 20 weeks has a positive effect on bone mineral density and body composition in old women. In conclusion, engaging in the outdoor exercise program, including aerobic and resistance exercises, for 20 weeks improved bone mineral density and inhibited bone loss in old women and had a positive influence on vitamin D levels, thereby potentially lowering the risk of osteoporosis.