• 한국디지털건축인테리어학회논문집
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• 제12권4호
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• pp.29-37
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• 2012

The main aim of the current research is to make the resources for the architectural planning available and usable from the investigation of the various dwelling needs in order for the multicultural family to make comfortable settlement. The members of multicultural families demand the various needs depending on their usage and identification of the dwelling space. The current research has conducted to define the solution to address the raised issue and unsatisfied factors from the dwelling that does not meet the multi-cultural families' demand, finding out from the survey/interview from the multicultural dwellers The methods to investigate is firstly to conduct the research based on the previous data with theological study, secondly, to perform the survey to the members of the multi-cultural families, and thirdly, to determine the satisfactory status and the requesting factors for the spaces by in-depth interview with selected members of multi-cultural families, using the diagram.

• 한국태양에너지학회 논문집
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• 제28권3호
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• pp.53-59
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• 2008

This paper reports an experimental investigation to design a tree-shaped wind power system using piezo-electric materials. The proposed system is to produce power if wind is strong enough to produce any bending motions in the energy converting elements, i.e., piezo-electric materials. Two different kinds of piezoelectric materials are used in the present study to produce power by scavenging energy from the wind. The soft flexible one made the leaf element while the hard one was applied to the trunk portion of the tree requiring rather strong winds to generate any power. Although small, each leaf deems to play the role of a power producer and currents are continuously trickling down to the storage battery installed at the bottom of the system.

• KIEAE Journal
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• 제14권5호
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• pp.13-20
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• 2014

Museums have developed various needs of the visitors and exhibits over the past two centuries. Currently, they have multiple functions of display, conservation, research and public education about artworks and cultural events. Therefore, exhibits should be displayed in various ways so that visitors can feel inter-relations with exhibits. The exhibition areas of museums should be provided with the stable lighting environment for visitors and artworks. For the study, I selected four museums, which were the Seoul Museum, the Mimesis Art Museum, the Seoul Museum of Art in Nowon and the National Museum of Modern and Contemporary Art in Gwacheon, and I measured illumination levels of the selected Museums, and then, I surveyed the visitors' responses on the lighting conditions of them. According to the results, the measurements of the illumination levels in the four museums showed that the illumination levels of them were effectively controlled to display the art works. However, the illuminance levels at some areas that drew the natural light as lighting source were much higher than recommended illumination values for museum. In the mean time, the answers of questionnaires showed that the natural light were so effective to light the museums although the natural light provided some areas with high illumination levels.

• KIEAE Journal
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• 제14권5호
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• pp.29-38
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• 2014

The Purpose of this study is to analyze the investigation of consumer's consciousness for Han-Ok construction of community facilities in an apartment housing. The contents of this study were largely composed of two parts; First was about concept and type of 'New Han-Ok type' public building. Second was about consciousness for Han-Ok construction of community facilities in an apartment housing. The result to this study is as following: 1) the concept of 'New Han-Ok type' public building should not only be defined in terms of cultural property or Han-Ok experience facilities but daily life and practical community. 2) the consciousness for Han-Ok construction of community facilities in an apartment housing was recognized affirmatively more than 75.9%. 3) the strengths of 'New Han-Ok type' public building was as following: daycare centers & small libraries & management office-use of eco materials, senior centers-traditional maintenance, community center-ease of daylight and ventilation. 4) Weaknesses of 'New Han-Ok type' public building was as following: daycare centers-security problem, senior centers-inconvenience of space, community facilities-inconvenience of facilities, small libraries-lack of storage space, management office-inconvenience of moving line. The conscious research for 'New Han-Ok type' public building should succeed for vitalizing for Han-Ok.

• International Journal of Air-Conditioning and Refrigeration
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• 제8권1호
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• pp.14-28
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• 2000

The frequency response characteristics of a condenser were numerically studied for the control of refrigeration and air conditioning systems. The important parameters, such as the refrigerant flow rate, refrigerant temperature, air velocity, and air temperature at the condenser inlet, were analyzed. Superheated vapor, two phase, and subcooled liquid domain in condenser can be described by using the energy balance equation and the mass balance equation in refrigerant and tube wall, the basic equation for describing the dynamic characteristics of condenser can be derived. The transfer function for describing dynamic response of the condenser to disturbances can be obtained from using linearizations and Laplace transformations of the equation. From this transfer function, analytical investigation which affects the frequency responses of condenser has been made. Block diagrams were made based on the analytic transfer function; dynamic responses were evaluated in Bode diagrams on the frequency response. Through this study, it became possible that the information about the dynamic characteristics of air-cooled condenser is offered. The results may be used for determining the optimum design parameters in actual components and entire systems. Also, the mathematical models, frequency response may be used to help understanding, evaluate optimum design parameters, design control systems and determine on setting the best controller for the refrigeration and air-conditioning systems.

• 한국음향학회지
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• 제34권4호
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• pp.282-287
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• 2015

본 논문은 공연장에서 의자 설치 조건의 변화가 의자의 흡음특성에 미치는 영향에 관하여 실험적인 연구를 실시하였다. 실제 공연장 의자의 흡음특성을 재현한 1/10 스케일의 축소 의자와 인체모형을 이용하여 실험을 진행하였다. 실험변수로는 의자의 흡음정도, 의자 열 간격의 변화, 청중의 착석유무, 그리고 바닥의 카펫설치 유무로 제한하였다. 열 간격에 따른 청중의 착석 및 바닥의 카펫설치 유무의 영향을 평균적으로 분석하였을 때 의자의 흡음률이 낮을수록 즉, 카펫 혹은 청중 등의 부가적인 흡음력이 없을 때, 열 간격에 의한 흡음률 변화폭이 작게 나타났다. 의자 열 간격 평균 주파수 대역별 흡음률 증가 값에 따르면 주변 인자에 의한 흡음률의 변화는 주파수대역별로 다르게 나타났다.

• KIEAE Journal
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• 제13권3호
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• pp.111-120
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• 2013

The purposes of this study were to investigate the actual state of the indoor thermal and air environment in general apartment houses during winter in Cheongju City, to analyze the related factors with the indoor thermal and air environment, and to make suggestions for the improvement. A series of visiting field investigation was conducted in twenty units between 28th December, 2010, and 11th March, 2011. The field investigations included the measurement of physical indoor environmental conditions, the observation of architectural characteristics and resident's behavior, and the on-site questionnaire survey of residents. The measured values of each units were compared to evaluation standard and were categorized to group by the difference between units. Factors related to the difference of the measured values between the groups were analyzed. The findings are summarized as followed. The indoor temperature of apartment houses during winter in Cheongju City was generally suitable. The relative humidity was slightly dry, while the $CO_2$ concentration was found to be excessively high. The factors related indoor environment were analysed as heating operation, ventilation, gas range use, and hanging out the wash to dry in indoors.

• 의료ㆍ복지 건축 : 한국의료복지건축학회 논문집
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• 제22권4호
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• pp.105-115
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• 2016

Purpose: This study is a case study of a small-mid sized hospital to promote a full-scale remodeling to ensure the quality and competitiveness of the medical services and trying to arrange the remodeling characteristics of small-mid sized hospital which is suffering from aging facilities as well as chronic congestion and lack of spaces. Methods: Research was conducted by consultation with hospital executives and each department operators, and on-site investigation, Results: The result of this study can be summarized into two points. The first one is that existing statistical value like area per bed, in the remodeling of the small-mid hospitals may not mean much. planners have to verify the necessary room space areas in close consultation with the department operators. And after confirming layout possibilities, they have to create the program. The second one is that remodeling planning can be a realistic plan with structural and installation diagnosis at the same time. If so, it is advisable to proceed architectural design from the beginning for cost and time savings. Implications: This results can be applied to small-mid hospitals to apply to the medical law revision and others.

• 한국실내디자인학회:학술대회논문집
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• 한국실내디자인학회 2002년도 춘계학술발표대회 논문집
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• pp.159-162
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• 2002

In the middle of 1940s, Hassan Fathy, a great Islamic contemporary architect, built cheap multifamily houses, schools, mosques and public market in the village of Gourna, near Luxor, Egypt for the poor Egyptian. At that time the western style houses made of concrete materials were so expensive for the Egyptian people in the rural area, that Hassan Fathy, a young architect, challenged to build the houses for them. He considered seriously the expenses that the lower-class Egyptians in the rural area could pay for building houses. He built up gorges arch-style building and done-style building by using traditional materials, which consisted of reeds, roues and mud brick for adobe. He made the design of houses cool in summer and warm in winter. The houses in the Gourna village were, afterwards, highly evaluated, in the sense that they represented the Islamic uniqueness of architecture and its beauty. As a result, the Gourna village made him receive many of awards including the Aga Khan Award. This study tries to focus on the reviewing of modern Islamic architecture by analyzing Hassan Fathy's architectural art, on the investigation of traditional materials used for building the Gourna village, and finally on the contribution for the research of Islamic architecture

• 한국소음진동공학회논문집
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• 제20권10호
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• pp.960-967
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• 2010

The sound field can be classified to the direct, diffract and reverberant sound field. If the sound absorption material in a room is not applied sufficiently, the reverberant sound field increases and the sound pressure in a room also increases when the sound source exists in a room. Therefore, the reverberation time should be controled in order to reduce the reverberant sound as well as sound pressure level in a room. Even though the reverberation time is specified and researched widely in architectural engineering, it is rarely performed in a marine engineering. Therefore, in this research, the reverberation time in a navel vessel is researched related to the noise reduction in a cabin.