• 한국주거학회:학술대회논문집
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• 한국주거학회 2005년도 추계학술대회 논문집
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• pp.287-290
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• 2005

Precast Concrete apartments were main stream of domestic industrialized housing around 90's , and Steel Houses applying Steel Stud technique with light weighted steel have been dominant portion since 1995. On the other hand, various building techniques including Steel Stud method and highly prefabricated and industrialized Unit method are prevailing in developed countries like Japan. Steel stud and Unit Box have their own merits an demerits, but the more crucial aspect is that the constant design standard should be applied in each design procedure. It entails the necessity of industrial housing development on the Open System basis. In this study, the design standard for Unit house will be established coping with the established preparing standard for design specifications defined by Architectural Law and Promotion Law of Housing Construction. That is for design standard of industrialized private housing on the Open System basis.

• 한국주거학회:학술대회논문집
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• 한국주거학회 2005년도 추계학술대회 논문집
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• pp.291-294
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• 2005

Precast Concrete apartments were main stream of domestic industrialized housing around 90's , and Steel Houses applying Steel Stud technique with light weighted steel have been dominant portion since 1995. On the other hand, various building techniques including Steel Stud method and highly prefabricated and industrialized Unit method are prevailing in developed countries like Japan. Steel Stud and Unit Box have their own merits and demerits, but the more crucial aspect is that the constant design standard should be applied in each design procedure. It entails the necessity of industrial housing development on the Open System basis. In this study, the design standard for Unit house will be established coping with the established preparing standard for design specifications defined by Architectural Law and Promotion Law of Housing Construction. That is for design standard of industrialized private housing on the Open System basis.

• 한국통신학회논문지
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• 제22권6호
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• pp.1244-1250
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• 1997

An arbitrary shaped iris in rectangular waveguideis investigated using FEM-CDMA with triangularprism elements in this paper. The volume of irisis subdivided into a relatively small number of triangular prism elements and FEM is used to formulate the field distribution. On the other hand, the fields in the waveguide region are represented by BIM derived from the waveguide Green's function and boundary conditions. The proposed method is verified through the design and experiment for the circular iris filter using WR-90 waveguide.

• 무역학회지
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• 제42권1호
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• pp.125-139
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• 2017

최근 세계 1위 시장인 중국 스마트폰 시장에서 급경한 변화의 바람이 불고 있다. 화웨이, 샤오미 등 중국 회사들이 빠른 속도로 부상 중이며, 괄목할만한 성장세를 보이고 있다. 본고는 이러한 중국에서 지금까지 연구가 미진한 죠링허우(90 後)를 대상으로 스마트폰 재구매의도에 영향을 미치는 선행요인과 자아이미지일치성(SIC)의 매개효과를 실증적으로 분석하고자 하였다. 연구결과, 첫째, 브랜드요인, 개인적경험요인은 재구매의도와 유의한 정(+)의 관계를 보였으나, 기타 다른 요인들(디자인요인, 가격요인, 기능적요인)은 유의한 관계를 보이지 않았다. 둘째, SIC는 브랜드요인과 재구매의도 사이에서 매개효과를 나타냈지만, 개인적경험요인과 디자인요인은 SIC의 간접효과가 없는 것으로 나타났다. 따라서 중국 죠링허우를 효과적으로 공략하기 위해서는 브랜드이미지를 강화하여 어떻게 명품브랜드로 육성할 것인지 그리고 개인적 경험요인을 어떻게 증강시킬 것인지 고려해야한다. 또한 SIC를 강하게 느낄수 있도록 브랜드 관련 다양한 마케팅 활동 및 이미지 제고에 노력해야한다.

• Journal of Korean Biological Nursing Science
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• 제15권2호
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• pp.90-98
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• 2013

Purpose: The purpose of this study was to develop a clinical practice nursing students' microbiology program based on the mastery learning model, and to evaluate the effects of the program on nursing students' knowledge, self-efficacy, performance, and satisfaction related to the nursing students' microbiology program. Methods: The program was developed by using the processes of the mastery learning model. The pre-experimental research design involved a one group pretest-posttest design. The setting was a university located in Incheon, Korea. A total of 130 nursing students participated in the program including a theoretical lecture, clinical practice, and formative and summative evaluation. Results: Using the program that was designed and developed, results for the total score of self-efficacy, knowledge, and performance in the post-test application were significantly higher than in the pre-test application (p<.05). The satisfaction of hand hygiene and disinfection/contaminated hand microbial culture and disinfection test received the highest ratings. Conclusion: The application of a clinical practice nursing students' microbiology program was effective, and can be expanded to other nursing students. Future research with other study designs was warranted in order to prove the effect of a microbiology program based on the mastery learning model.

• 한국생활과학회지
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• 제15권3호
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• pp.449-455
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• 2006

We researched the comfort degree of 8 bodily parts while high school students carry out 9 different motions common to them. We observed high school students to study active effection when they are wearing Saenghwal Hanboks as a school uniform. As a result of this study, the highest degrees of comfort were recorded at standing position, walking, and upright sitting position with one's waist keeping 90 degree. On the other hand, the lowest degrees of comfort were experienced when they bend forward 45 degree and 90 degree each, and also when arms were folded across the chest. Furthermore, students reported that their buttocks, waist, and knees were comfortable during observation period, but that their backs, shoulders, and arm hole were uncomfortable throughout. In general, girls felt more comfortable than boys did, while they were wearing Saenghwal Hanbok as a school uniform.

• Structural Engineering and Mechanics
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• 제90권1호
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• pp.51-70
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• 2024

Poorly designed reinforced concrete (RC) columns of actual moment-resisting frame (MRF) buildings can undergo Axial Compression Ratios (ACR) so high as their demand exceeds their capacity, even for serviceability gravity load combinations, this lack commonly leads to insufficient seismic strength. Nonetheless, many seismic design codes do not specify limits for ACR. The main contribution of this research is to investigate the need to limit the ACR in seismic design. For this purpose, three prototype 6 and 11-story RC MRF buildings are analyzed in this paper, these buildings have columns undergoing excessive ACR, according to the limits prescribed by standards. To better that situation, three types of alterations are performed: retrofitting the abovementioned overloaded columns by steel jacketing, increasing the concrete strength, and reducing the number of stories. Several finite element analyses are conducted using the well-known software SAP2000 and the results are used for further calculations. Code-type and pushover analyses are performed on the original and retrofitted buildings, the suitability of the other modified buildings is checked by code-type analyses only. The obtained results suggest that ACR is a rather reliable indicator of the final building strength, hence, apparently, limiting the ACR in the standards (for early stages of design) might avoid unnecessary verifications.

• 한국조경학회지
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• 제27권1호
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• pp.90-100
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• 1999

The Fallingwater, one of Wright's best designs, is known as a good example of "Organic Architecture". Its landscape characteristics are harmonious relationship between architecture and landscape, adaptable siting, composition of spatial and visual structure, floating spaceness, interlocking of water and house, dramatic approach, and vernacular material use. This characteristics had begun from the Prairie architecture, but also had influenced by the culture and art of the Far East. He was open to foreign cultures. Staying in Japan for years, he had travelled China, too. In this process, he might be exposed to Korean art and culture which were under Japan at that time. Comparing the front image of the Songkwang Temple to that of the Fallingwater, their compositions between architecture, water, and landscape are so similar to each other. They are also close to each other in terms of spatial structure. Therefore the landscape characteristics found in the Fallingwater design are more similar to Korean landscape architectural characteristics than Japanese ones. Therefore we are going to suggest the hypothesis that Wright is influenced by Korean landscape design in the design of the Fallingwater. Considering his impact upon the design world, it will be significant if the concept of Korean traditional landscape design is placed behind his design of the great architecture.hitecture.

• 전산구조공학
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• 제9권2호
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• pp.143-151
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• 1996

구조 및 전기적 제약조건을 고려한 전자력 발사기의 최적설계에 대해 연구하였다. 펄스형 대전류가 흐르는 발사기의 단면적이 최소화되었으며 각 요소(레일, 측면벽, 세라믹 및 강철)의 허용응력과 예하중을 고려하였다. 전기적 제약조건은 발사기의 성능을 저하시키는 와전류 효과를 방지하기 위한 세라믹의 두께로 정하였다. 90mm발사기의 설계에서 응력해석과 최적화는 ANSYS코드를 사용하여 수행되었다. 예하중을 받는 최적설계에서는 예하중을 받지 않는 최적설계보다 53%의 단면적이 감소되었다. 레일의 원호각이 45.deg.일때 발사기의 성능이 가장 양호하다. 레일의 원호각이 45.deg.일때 Fahrenthold 연구결과와 비교하여 9%의 변형량 감소와 10.4%의 변형량 감소를 얻었고, 예하중도 186Mpa에서 59.8Mpa로 감소되었다. 연구결과는 설계 요구조건을 충분히 만족시켜 주고 있음을 보여 주었다.

• 마이크로전자및패키징학회지
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• 제12권2호
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• pp.175-179
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• 2005

본 논문에서는 평행 결합선로를 이용하여 구조가 간단하고 광대역 특성을 갖는 $180^{\circ}$ bit X-대역 위상 변이기를 설계하고 마이크로머시닝 (micromachining) 공정을 이용하여 제작하였다. 이 위상 변이 기는 한쪽 끝이 접지된 $90^{\circ}$ 평행 결합선로와 한쪽 끝이 단락된 $90^{\circ}$ 평행 결합선로를 병렬로 연결한 구조를 갖는다. 이분법 이론에 의해 $180^{\circ}$ bit 위상 변이기에 대한설계 공식을 유도하고, 이를 적용하여 중심주파수 10GHz에서 대역폭 6GHz, ${\pm}5^{\circ}$의 위상 변이를 갖는 광대역 $180^{\circ}$ bit위상 변이기를 설계, 제작하였다.