• Journal of Korean Institute of Industrial Engineers
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• v.34 no.3
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• pp.328-336
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• 2008

This research proposes a method for economic-statistical design of adaptive moving average (A-MA) charts. The basic idea of the A-MA chart is to accumulate previous samples selectively in order to increase the sensitivity. The A-MA chart is a kind of adaptive chart such as the variable sampling size (VSS) chart. A major advantage of the A-MA chart over the VSS chart is that it is easy to maintain rational subgroups by using the fixed sampling size. A steady state cost rate function is constructed based on Lorenzen and Vance (1986) model. The cost rate function is optimized with respect to five design parameters. Computational experiments show that the A-MA chart is superior to the VSS chart as well as to the Shewhart $\bar{X}$ chart in the economic-statistical sense.

• Journal of Korean Institute of Industrial Engineers
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• v.26 no.2
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• pp.171-182
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• 2000

For the last five years, data mining has drawn much attention by researchers and practitioners because of its many applicable domains. This article presents an adaptive decision tree algorithm for dynamically reasoning machine failure cause out of real-time, large-scale machine status database. Among many data mining methods, intelligent decision tree building algorithm is especially of interest in the sense that it enables the automatic generation of decision rules from the tree, facilitating the construction of expert system. On the basis of experiment using semiconductor etching machine, it has been verified that our model outperforms previously proposed decision tree models.

• Proceedings of the Korean Society for Language and Information Conference
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• 2007.11a
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• pp.136-145
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• 2007

This paper explains how we define and represent modality in E-HowNet. Following Lyons (1977, reviewed in Hsieh 2003, among others), we hold that modals express a speaker's opinion or attitude toward a proposition and hence have a pragmatic dimension and recognize five kinds of modal categories, i.e. epistemic, deontic, ability, volition and expectation modality. We then present a representational formalism that contains the three most basic components of modal meaning: modal category, positive or negative and strength. Such a formula can define not only modal words but also words that contain modal meanings and cope with co-compositions of modals and the negation construction.

• International Journal of Industrial Entomology and Biomaterials
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• v.5 no.1
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• pp.131-134
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• 2002

Mulberry being the only food of silkworm, Bombyx mori L., is of great economic importance to the silk industry, The success in cocoon production mainly depends on the supply of quality leaves in sufficient quantity. In mulberry, where the economic product is leaf, the uptake of nitrogen from soil is very heavy and high responses to application of nutrients have been reported. Nitrogen supports vegetative growth particularly the leaf biomass. Variation in nitrogen harvest index and other physiological and yield contributing traits were estimated in five mulberry genotypes. Considerable variation was observed for nitrogen harvest index, protein yield per plant and harvest index. The correlation studies indicated the protein yield per plant was significantly correlated with leaf yield, nitrogen content in leaf, nitrogen harvest index and harvest index. The broad sense heritability estimates revealed that harvest index showed highest heritability (88.07%) followed by nitrogen content (82.52%), protein yield (70.28%) and nitrogen harvest index (66.52%).

• Proceedings of the Korean Information Science Society Conference
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• 2011.06d
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• pp.198-201
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• 2011

최근 정보통신 기술의 급속한 발전으로 인간과 컴퓨팅간의 응용 융합 연구가 활발하게 진행되고 있다. 그 중에서도 증강 현실 기술 분야는 인간이 보고 느끼는 현실감을 극대화 하여 인간의 실세계를 가상세계로 아주 잘 표현하고 있다. 본 논문에서는 유비쿼터스 기술을 기반으로 원하는 시간에, 원하는 지역에서, 원하는 정보를 제공받으며 온도나 감촉을 느끼고, 향기를 맡는 등 실제 체감하는 것과 똑같이 여행할 수 있도록 오감인식과 증강현실 기술을 이용한 여행체험 증강 현실이 가능한 설계를 제안한다. 이를 통해 앞으로는 여행하기 위하여 많은 돈과 시간을 들이지 않고도 원하는 지역을 3차원 전용체험관에서 여행할 수 있으며, 어린이 혹은 청소년들이 세계적 박물관을 관람할 경우 현실보다 더 실재감 있고, 현실보다 더 풍부한 정보를 얻을 수 있으므로 유용하게 활용할 것으로 기대한다.

• Korean Journal of Human Ecology
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• v.7 no.1
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• pp.81-99
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• 2004

This study examined one room(studio apartment) residential deweller's housing behavior and housing need, and the relationship between the sense of housing values and housing satisfaction of one-room residence, The study surveyed 302 one-room residents in Busan city. The researcher modified, complimented, and used the previous researches on housing values and housing satisfaction. The analysis of the data used SPSS Win 10.0 program. The results of the research can be summarized as follows: 1. The motive of choosing one-room residence was mainly the closeness to the school or work, Jeonse(Rent with a one-room deposit) was more common than ownership, and the size is one-room residence was 10 to 15 Pyeong. 2. Among the five housing values of one-room residence dwellers, that is, amenity, indoor and outdoor environment, economy/convenience, convenience in transportation, and the interior functionality, the convenience in transportation was ranked highest, and the indoor and out door environment and economy/convenience followed. 3. The housing satisfaction of one-room residents was highest in location, and also high in the safety and the security or privacy, and the convenience of inside facility.

• The Journal of Korea Robotics Society
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• v.5 no.2
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• pp.169-176
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• 2010

Robotic software has been dramatically complicated as performing intelligent service tasks. These types of robots demand a very powerful software framework to make them easy. Robotic software framework means an integrated software environment that simplifies jobs of robotic software engineer by providing tools, reusable components, and runtime environments. Finally it reduces the project cost. There are lots of works related with them. Among them we focus on five frameworks that are MSRDS, ERSP, OROCOS, OpenRTM, and OPRoS. In terms of intelligent service robot, the study on robotic software frameworks is very important. And outlook on them is also very important in the sense of that the robotic software frameworks should be used to initiate service robot market.

• Journal of the Korean Institute of Landscape Architecture
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• v.23 no.2
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• pp.44-62
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• 1995

This study investigated the landscape space of Chosun Dynasty pavilions in the Sang-ju Region. Five renowned pavilions were selected for study by Phenomenological and IDRISI (4.1) S/W. The results were as follows ; Pavilions were erected for studying cultivating moral sense admiring the view relieving illness and commemorat memoring people. A total of 248 pavilions were erected in the Sang-ju Region between 1392 and 1895 AD, most of them duing he golden age from 15001670 AD. Pavilions and open space were composed in harmony with nature borrowing natural landscape features. Landscape characteristics were analysised with IDRISI(4.1) S/W; pavilions were ma711y located at the bottom of a mountain with stream The Inner garden was formed by a fence and Lagerstroemia indica or a few trees. The Outer garden was formed by mixed stands of Pinus dentsiflora, Zelkowa serreta, Acer formosum and well conserved natural vegetation.

• Proceedings of the KSRS Conference
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• 2003.11a
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• pp.1180-1182
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• 2003

In Asian countries, paddy field is indispensable for our lives not only as a source of food but also ecosystem, hydrology, landscape, culture and global warming. In this sense it is necessary to get the detailed spatial distribution of paddy field in Asian region. Remote sensing seems to be the most appropriate tool to estimate paddy field. In this study, two Terra/ASTER images acquired on different date were used to get a map of paddy field with different planting. ASTER's 15-m resolution was found to be enough to be recognize individual paddy field . Paddies with different planting stages were divided into five types using their spectral patterns. As a result a map of paddies with different planting was obtained with tolerably high accuracy.

• The Journal of Korean Academy of Orthopedic Manual Physical Therapy
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• v.24 no.2
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• pp.69-74
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• 2018

Background: The purpose of this study was to investigate the effect of a complex exercise program for elderly people who had experienced a fall on their balance ability and proprioception when their visual sense was blocked. Methods: The subjects were 24 elderly people with experienced fall. They were equally and randomly divided into a blind group and a general group. The subjects performed the complex exercise program for 30 minutes, twice a day, five days a week for 4 weeks a total of 20 times. Outcome measures were the 10-meter walking test (10MWT), Berg balance scale (BBS), Fukuda stepping test(FST), proprioception test (PT). Results: After the intervention, the blind group showed improvements in 10MWT, BBS, FST, PT. The general group showed improvements in 10MWT and PT. Conclusions: The complex exercise program for elderly people helped enhance their balance ability and proprioception.