• Korean Institute of Interior Design Journal
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• no.21
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• pp.101-106
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• 1999

This study has been designed to explore the preferences of interior space for those living in apartment housing. It also examines the relationships between preferences of interior space, such as storage space, organization type of LDK(the living room, the dining room, and kitchen), space facing south, an interior garden, the concept of each room and the characteristics of the consumers, such as age, educational background employment status of homemakers, occupation of the primary income provider, family-life cycle, total household income, the size of floor space, and homeownership. In conclusion, this study suggests that at the time of designing apartment housing units, serious consideration should be given to the built-in closets or storage space in the anbang and to the location of a child's room facing to the south of the dwelling, especially for the families with a child attending primary school or younger and higher education level of homemaker. This study also recommends that the organization of the living room, the dining room, and the kitchen should be varied according to the housing size and the age of homemaker.

• Journal of the Korean housing association
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• v.18 no.3
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• pp.19-29
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• 2007

This study is aimed at interpreting into changes and characters of function applied into quantative analysis in ubiquitous house. Digital technology being introduced into architectural fields, It applied expansively from design and construction to user's convenience. The application of digital technology is presented to various change like effectiveness and exactness in design and function of space, which is overlayed digital space to physical space beyond the extent of receiving human needs in physical space. In ubiquitous house, digital technologies are supplied to function coordinated with life, appreciating into positional informations of human and materials, spatial informations. Ubiquitous house is comparably effective into funtional expansion, user's convenience, safty, which, for the future, is going to using on housing of high performance encouraging the application of advanced technology. Therefore this study is classified into human behaviors, functions, performances and characters of digital system in ubiquitous house, which being established into the relation of elements, is interpreted numerically into functional changes and charats being applied to ARM.

• International Journal of Advanced Culture Technology
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• v.4 no.1
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• pp.28-30
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• 2016

Due to the high increment in usage and built-in advanced technology of smartphones, human activity recognition relying on smartphone sensor data has become a focused research area. In order to reduce noise of collected data, most of previous studies assume that smartphones are fixed at certain positions. This strategy is impractical for real life applications. To overcome this issue, we here investigate a framework that allows detecting the status of a traveller as idle or moving regardless the position and the direction of smartphones. The application of our work is to estimate the total energy consumption of a traveller during a trip. A number of experiments have been carried out to show the effectiveness of our framework when travellers are not only walking but also using primitive vehicles like motorbikes.

• 제어로봇시스템학회:학술대회논문집
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• 2004.08a
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• pp.1535-1538
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• 2004

In this paper, an Intelligent Bed Robot System (IBRS) is proposed, that is a special bed equipped with robot manipulator. To assist a patient using IBRS, pose and motion estimation process is fundamental. It is designed to help the elderly and the disabled for their independent life in bed without other assistants. For this purpose, we use the pressure sensor distributed mattress for detecting the change of motion on the bed. Using that data, we control the robot arm to move to the appropriate position and serve to the user. In addition, we can estimate the user's intention based on the change of pressure and use those data to control the robot arm guide.

• Journal of the Korea Furniture Society
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• v.19 no.1
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• pp.66-74
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• 2008

This paper reviews a new kitchen space by analyzing the user life style and their house environment where ubiquitous system is considered. The kitchen space where ubiquitous system is applied was differ in their house atmosphere and the role of kitchen area. Those changes under ubiquitous system has the kitchen becomes the central space of the house and the furnishings including home appliances and furnitures. This furniture and built-in machine will get a communication ability with user in the living and kitchen space. And it will include a high technology like as RFID, home network and so on.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2004.10a
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• pp.1048-1052
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• 2004

The ubiquitous environment is to support people in their everyday life in an inconspicuous and unobtrusive way. This requires that information of the person and her preferences, liking, and habits are available in the ubiquitous system. In this paper, we propose the context aware system that can provide the tailored information service for user in ubiquitous computing environment. The system architecture is composed of 4 domain models that can perform some pre-defined tasks independently. And we suggest the hybrid algorithm combined with fuzzy and Bayesian network to reason what information is suitable for user environment. Finally, we apply to agent based RGA(Research Guide Assistant).

• Journal of Korea Multimedia Society
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• v.13 no.6
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• pp.841-848
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• 2010

Conventional filters using email header and body information equally judge whether an incoming email is spam or not. However this is unrealistic in everyday life because each person has different criteria to judge what is spam or not. To resolve this problem, we consider user preference information as well as email category information derived from the email content. In this paper, we have developed a personalized anti-spam system using ontologies constructed from rules derived in a data mining process. The reason why traditional content-based filters are not applicable to the proposed experimental situation is described. In also, several experiments constructing classifiers to decide email category and comparing classification rule learners are performed. Especially, an ID3 decision tree algorithm improved the overall accuracy around 17% compared to a conventional SVM text miner on the decision of email category. Some discussions about the axioms generated from the experimental dataset are given too.

• The Transactions of the Korean Institute of Electrical Engineers P
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• v.58 no.1
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• pp.1-8
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• 2009

Recently, application of non-linear load is gradually increased. Non-linear load produces harmonic components of current during the energy conversion transition. Passive filter is used for reducing of harmonics in the user power systems. This filter, which is composed of capacitor and reactor, frequently get out of order by electrical stress. There are voltage and current increase when capacitor and reactor are applied in the user's filter systems. If increased voltage and current is above stipulated values, they have severely an influences on the life of capacitor and reactor. This paper describes that the voltage and current of capacitor used for filter is within the limits of allowable values, but reactor is beyond the limits and reveals spike voltage. Therefore this phenomenon brings about premature fault of reactor and capacitor.

• Korean Institute of Interior Design Journal
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• no.19
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• pp.121-127
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• 1999

The objective of this study was to criticize the model house of apartment and suggest a evaluation model which could be used as an effective tool. The evaluation model had been developed based on the theoretical framework suggested by previous results of research related on housing design, which comprised the following four components : 1) the paradigm of future home and life-style, 2) marketing effects of housing developer, 3) goals and principles of housing design and 4) results of user-preferences study, an evaluation model was suggested as a preliminary form which would be modified in detail after series of tests in the field. The evaluation model will be used to provide standardized criteria for the quality of model houses, and eventually help to improve the quality of apartment housing design by balanced information from theorist, user and developer.

• Proceedings of the Korean Institute of Interior Design Conference
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• 2003.05a
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• pp.29-34
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• 2003

The purpose of this study was identifying the user needs for the planning of public space in apartment dwelling units. 298 apartment residents in Haeundae, Pusan responded to the structural questionnaire, which included the residents' satisfaction for the location and size of the living room, the kitchen and the dining room, the space usage of the living room and the dining room, and preferred layout of the public space. The main findings are as follows. 1) The important household characteristics to consider are identified as family life cycle and the number of family members. 2) The levels of residents' satisfaction were differed by the household characteristics and the types of apartment. 3) Activities related to recreation, entertainment, and family meals in living room and formal and informal entertainments in the dining room were occurred in different way as to the household characteristics and the types of apartment. 4) The younger families in the smaller sized apartments had more diverse preference to the layout of the public space.