• Journal of the Korean housing association
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• v.19 no.4
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• pp.71-78
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• 2008

The study was intended to suggest the design alternatives and guidelines of village community center as a common living space for the elderly in rural area. First, two design alternatives were derived from the previous research which examined the conditions and old persons' needs of village community center. Then, the design guidelines were proposed on the basis of the previous research and the elderly's evaluation for those two alternatives. The subjects were 85 old residents who were more than 60 years old and lived in rural area in Gyungnam. The interview was carried out using a questionnaire, models, and isometrics of two alternatives. The subjects evaluated positively both of two alternatives. The design guidelines of village community center were derived as follows: Both of two alternatives can be used as a model of village community center. The dining and living space in the center should be opened and large. Both of indoor and outdoor toilet should be arranged in village community center. Also, each toilet for man and woman should be separated.

• Korean Institute of Interior Design Journal
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• v.16 no.1 s.60
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• pp.119-125
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• 2007

Changing depends on the one and only out of many design elements constituting the outside, and a Lighting design has an easy characteristic among space. Therefore accuse various sensitivity to watch when lighted up the same environment with Lighting of other colors, and it is an interesting point to show a communication tendency of a Lighting design in the present age escape from a general idea transmit a change of sight to a man of experience directly, and to clarify space simply, and to show various power of expression. The study of a book tried to make a searching examination for a generation cause of this tendency by trying to observe the modern Lighting design tendency that various desires were reflected in of the modern society in various general ideas of communication.

• Journal of architectural history
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• v.28 no.4
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• pp.7-16
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• 2019

In this study, I would like to inquire about the composition of oegi(外機) on the hip and gable roof. Oegi purlin compose the basic member of framework of a hip and gable roof in both sides roof, supporting the inside end of the side rafter. However, the oegi purlin is not simply used to form hip and gable roof. The effects of using oegi purlin have the advantages of spatial. The spatial advantages are the width of the toekan(退間) increases as the oegi purlin escapes from column row and to increase the ceiling height by becoming a point of staying the ceiling. That reflect the desire to expand indoor space due to changes in worship behavior. Oegi purlin was used not only for structural needs, but also for altering in indoor space due to the changing times.

• International Journal of Aeronautical and Space Sciences
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• v.7 no.2
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• pp.50-55
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• 2006

Currently, a gas fueled diffusion flame is used for the relay torch system. It could be burned cleanly but should be stable at severe weather condition such as rain of up to 55 mm/h, winds of up to 70 km/h and also produce a highly bright yellow visible flame. This paper presents torch diffusion flame characteristics on the various wind speeds and rainfall conditions. From the results, flame lengths are controlled by the momentum flux ratio of fuel and ambient air flow and flame stability is much influenced by the mixing characteristics with air flow. Flame is fluctuated above than 200 mm/h rainfall and blow out is occurred about 300 mm/h rainfall condition.

• The Bulletin of The Korean Astronomical Society
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• v.34 no.1
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• pp.112-112
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• 2009

• Elastomers and Composites
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• v.56 no.2
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• pp.72-78
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• 2021

A phase-change material (PCM) is a material that has the ability to delay heat transfer by absorbing heat from its environment or releasing heat to its environment while its phase changes from solid to liquid or liquid to solid at a specific temperature. As it is applied, it can contribute to environmental conservation such as energy savings and carbon dioxide emission reduction. In order for a PCM to store and release heat, the volume change during its phase transition should be large, and thus a phase transition space is required. When a PCM is used as a polymer additive, it is confined within the polymer, and there is no phase transition space; thus, its ability to absorb and release heat is significantly reduced. Therefore, in this study, porous silica was used to provide EVA/PCM compounds with sufficient space for their phase transition, and to improve the compatibility between the EVA and PCM, modified silica is used: surface-modified 5 wt% silica with 3-methacryloxypropyltrimethoxysilane. The compound was prepared and compared with the silica compound. The presence or absence of the modified silica surface modification was confirmed using Fourier-transform infrared spectroscopy and thermogravimetric analysis, the heat capacity of the compound was evaluated based on a differential scanning calorimetry analysis, and its mechanical strength and morphology were determined using scanning electron microscopy.

• Nuclear Engineering and Technology
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• v.33 no.5
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• pp.483-497
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• 2001

In this work, a neuro-fuzzy inference system combined with the wavelet denoising, PCA (principal component analysis) and SPRT (sequential probability ratio test) methods is developed to detect the relevant sensor failure using other sensor signals. The wavelet denoising technique is applied to remove noise components in input signals into the neuro-fuzzy system The PCA is used to reduce the dimension of an input space without losing a significant amount of information. The PCA makes easy the selection of the input signals into the neuro-fuzzy system. Also, a lower dimensional input space usually reduces the time necessary to train a neuro-fuzzy system. The parameters of the neuro-fuzzy inference system which estimates the relevant sensor signal are optimized by a genetic algorithm and a least-squares algorithm. The residuals between the estimated signals and the measured signals are used to detect whether the sensors are failed or not. The SPRT is used in this failure detection algorithm. The proposed sensor-monitoring algorithm was verified through applications to the pressurizer water level and the hot-leg flowrate sensors in pressurized water reactors.

• Journal of the Korean Institute of Landscape Architecture International Edition
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• no.1
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• pp.131-134
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• 2001

Green and plants, as it symbol the life and depute the nature, always give human an easy comfort psychologically. The paper is a brief analysis to the idea frame of urban construction and reform of Kunming through our practice about ten years. On which three main principles should be carefully considered. One is that the green-space composed of plant system is of the important infrastructure of a modern city as it can not be instead of by any other factor in the ecological system of the city. The other is that in the course of planning and construction the local feature as well as its culture tradition in history should be pied more attention. In order to create a distinguish character of itself the third may be more important that to coordinate each key elements of it such as green, water, light, building, road, etc., to get a harmonious sphere of human and nature. A modern city should be a green city in which nature and man co-exist harmoniously.

• Nuclear Engineering and Technology
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• v.32 no.5
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• pp.485-494
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• 2000

In this work, a fuzzy neural network is used to estimate the relevant sensor signal using other sensor signals. Noise components in input signals into the fuzzy neural network are removed through the wavelet denoising technique . Principal component analysis (PCA) is used to reduce the dimension of an input space without losing a significant amount of information. A lower dimensional input space will also usually reduce the time necessary to train a fuzzy-neural network. Also, the principal component analysis makes easy the selection of the input signals into the fuzzy neural network. The fuzzy neural network parameters are optimized by two learning methods. A genetic algorithm is used to optimize the antecedent parameters of the fuzzy neural network and a least-squares algorithm is used to solve the consequent parameters. The proposed algorithm was verified through the application to the pressurizer water level and the hot-leg flowrate measurements in pressurized water reactors.

• Journal of the Korean Institute of Rural Architecture
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• v.2 no.2
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• pp.63-73
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• 2000

The objectives of this study are understanding on the type and the characteristic of the architecture in the saltern. At result, there are warehouse of the salt, residence of salt man and office building. These architectures are clearly different from Korean traditional architecture and constructed in special area (a saltern), on special purpose. These are not excellent architectural form, but materials and forms of these architectures are reasonably suitable for the regional characteristic and the function. Today, the architecture in the saltern, are gradually disappear, therefore the researches and the memories are meaningful in this study.