• Journal of the Korean Society for Precision Engineering
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• v.25 no.8
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• pp.21-28
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• 2008

Fizeau interferometer is used for inspecting the lens surface profile accurately. This study is focused on the design and optical measuring techniques for large optical components, such as a reflection mirror for large area lithography or astronomical purpose. A tower type Fizeau interferometer is designed and set up in horizontally with a 45$^{\circ}$ fold mirror which makes easy to align the optical path of heavy interferometer system. To align the optical path, a five-axes stage for the interferometer is required. This study shows a method of the 45$^{\circ}$ fold mirror alignment by using a three-axis stage instead of adjusting the interferometer itself or measuring object. This system will be installed on the large optics polishing machine during the manufacturing process as an on-machine inspection system.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• autumn
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• pp.325-328
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• 2003

폴드와 타 동유럽국가들이 내년에 유럽연합(EU)에 가입할 예정이다. EU에 가입한 후 폴란드는 도로분야의 투자에 박차를 가한 것이며 2005년까지 도로망을 보수할 것이다. 현재 폴란드 정부가 도로의 모든 건설투자 비용을 충당할 수 없으므로 민${\cdot}$관 협력에 기초하여 프로젝트 자본조달에 관한 새로운 방법을 발전시키고자 한다. 고도로 개발된 도로 교통망 없이는 국가 경제측면에서 경쟁력을 제고할 수 없으므로 EU 전체의 도로 교통망을 도입 하고자 한다. 도로 교통망의 성공적인 확대는 폴란드와 같이 아직 EU에 소속되지 않은 동유럽 국가의 교통 기반시설의 기초가 될 것이며 이것은 전채유럽의 이익을 가져 올 것이다.

• Proceedings of the Korean Information Science Society Conference
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• 2002.04a
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• pp.700-702
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• 2002

단백질 구조를 정렬하는 방법은 단백질의 모티프 또는 폴드를 찾는데 사용되고 있으며, 기능적 또는 구조적으로 연관된 단백질을 분류하는데 유용하게 사용되고 있다. 본 논문에서는 단백질 이차 구조($\alpha$-나선 구조와 $\beta$-병풍구조)를 기반으로 하는 단백질 구조 정렬 방법에 대하여 기술한다. 제안된 단백질 이차 구조 요소 기반의 정렬방법은 단백질 구조를 단백질 이차 구조 요소와 그들 사이의 관계(수소결합, 상대적 위치)를 이용하여 표현하고, 표현된 두 개의 구조를 단백질 이차 구조 요소와 그들 사이의 관계만을 이용하여 비교하는 방법으로 기존의 방법보다 빨리 정렬할 수 있다.

• The Transactions of the Korean Institute of Electrical Engineers P
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• v.61 no.1
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• pp.5-9
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• 2012

In this paper, multi folded dual monopole antenna for WLAN communication of dual bend is designed and fabricated. The proposed multi folded dual monopole antenna are consisted of two folded rectangle loops by microstrip fed that is modified dual monopole antenna. Therefore, the outside rectangle loop structure of the proposed antenna is extended a dual monopole. The characteristics of the proposed antenna is analyzed return loss and radiation patterns by the FDTD tools. As a result a bandwidth of proposed antenna has about 0.82GHz from 2.0 to 2.82[GHz] and 0.7GHz from 5.46 to 6.16[GHz]. It is used WLAN communications of 2[GHz] and 5[GHz].

• Proceedings of the Korean Institute of Interior Design Conference
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• 2007.11a
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• pp.118-121
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• 2007

Modem society has been complicated and diverse, and then various paradigms coexist. We can see Postmodernism moving in the flows of modern architecture. Therefore looming large is the Fold architecture that can surmount the limit of design in Postmodernism and Deconstruction and suits to the modern culture as an architectural alternative. So I believe this research can make us perceive the streams of modern interior space by considering the features and meanings of Fold conception which has been noticeable in the overall architecture and culture since the middle of 1990's with analyzing and defining atypical organic Fold characteristics appearing in modern interior since 2000, and also predict the next changing direction.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2020.07a
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• pp.337-339
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• 2020

오디오 초 해상도 기술은 저 해상도의 오디오 신호를 이용하여 고 해상도의 오디오를 복원 또는 생성해 내는 기술이다. 본 기술 분야는 기존에 주파수 대역 확장, 인공 대역 확장 기술 등으로 연구되었으나, 최근 딥러닝 기술의 발전, 이미지 초 해상도 기술 연구 등에 힘입어 오디오 초 해상도 기술 이라는 이름으로 주로 연구되고 있다. 본 논문에서는 이러한 오디오 초 해상도 기술에 연구 동향에 대하여 설명하고, 기존의 논문 들에서 주로 다루고 있는 음성 데이터 베이스가 아닌 MedleyDB 음악 데이터 베이스를 활용하여 실험을 수행하였다. 실험은 4-폴드 교차 검증을 통해 수행되었으며, 실험 결과 제안하는 컨벌루션 신경망 구조 기반 오디오 초 해상도 기술은 입력 저해상도 오디오 대비 SNR 이 3.41 dB 향상됨을 확인하였다.

• Journal of the Korean Institute of Landscape Architecture
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• v.36 no.5
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• pp.1-12
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• 2008

Since the late 20th century, post-modern society has needed new styles in environmental design. The land art begun during that time supplied the momentum for the birth of the hybrid environmental design. The new design approach, focusing on land form and landscaping begun with land-form architecture, raised a powerful current of hybridization in the environmental design genres. The new picturesque landscape design distinguished by manipulated land forms and sublimated aesthetics appeared under the influence of land art and land-form architecture. Similarly, landscape urbanism was formed by the fusion of landscape architecture and urbanism. Therefore, the representative hybrid styles in environmental design appear as new picturesque landscape design, land-form architecture and landscape urbanism. With the new, strong interest in land and landscape, this same new interest was given to 'time' on account of the dynamics and indeterminacy of urban society. This new interest in land and time gave rise to new hybrid methodologies for environmental design such as mapping, diagramming and folding. These three tools have been applied most comprehensively in landscape urbanism. The 'fold' is the most popular design tool for most of the hybrid genres. The 'diagram' is the second-most popular design tool mostly for landscape urbanism and land-form architecture. Mapping is being actively applied to landscape urbanism and passively applied in new picturesque landscape design. In general, landscape urbanism seems to be a timely and suitable alternative for contemporary urban society. It displays very high potentials in the regeneration of the locality through the comprehensive hybrid methodology. It is necessary to actively engage in and develop landscape urbanism fit the local needs.

• Aerospace Engineering and Technology
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• v.4 no.2
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• pp.135-141
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• 2005

The procedure of conceptual and detailed design of sub-scale combustor using bipropellant swirl or impinging injector with external or internal mixing for a liquid rocket engine are described in this paper. The sub-scale combustor uses liquid oxygen(LOx) and kerosene as propellants and has a injector head, an ablative material combustor wall and a water cooled nozzle. The injector head has LOx manifold, fuel manifold, fire face plate, one center swirl or impinging injector and 18 main swirl or impinging injectors.

• Journal of the Korean Society of Propulsion Engineers
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• v.6 no.3
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• pp.19-27
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• 2002

The sequence of the propellant supply for ignition of a liquid rocket engine combustor is very important in the reliable and safe operation of the engine. The ignition sequence of KSR-III main engine was briefly described and the measuring parameters and their reliability determining ignition sequence were examined in this paper. The filling time of the engine propellant manifolds and the valve open/close time were reviewed to obtain the exact and reliable time of the propellant supply to the combustor. The combustion characteristics of the engine at starting were discussed at different supply lead of propellant. Finally, the hot firing test results with cyclogram determined by measuring parameters were presented.

• The Research Journal of the Costume Culture
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• v.19 no.4
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• pp.805-819
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• 2011

In contemporary society, heterotopia is the law dominates thoughts and is the concept reconstituted spaces calls order in chaos. And that is the place which refuses the paradoxical and social custom and sometimes poses a danger and rise in rebel. The purpose of this study is to study how forms of clothing fluid form images are expressed in modern fashion develop body around in the spatial relationship between the body and its environment. The study method consider changed characterastics of fluid space through the heterotopia thinking system of Foucault Michel. Based on this method, the heterotopia space that appeared in the plastic arts in aspects of artistic significance and aesthetic value was examined. Based on the above discussion on modern fashion Fluid Form were expressed in any formative characteristics were considered. The results of this study are as follows. Fluidity is the transformed interaction. It expanded external representation of organic body structure and reconstructed flexible forms of dynamic structures continuously. Transformation is the new space structure. It constructed invisible transformation and developed convertible dress space by combining a variety of functional overlap and fold. Deconstruction was expressed structural forms, expanding the existing forms in the open structure which have ambiguous boundaries.