반도체 공정의 변동이 존재하는 NAND 플래시 메모리를 위한 ADDA 기반 에러 복구 기법

이선민(Seonmin Lee),지정주(Jeongju Jee),박현철(Hyuncheol Park) 한국통신학회 2022 한국통신학회 학술대회논문집 Vol.2022 No.2

반도체 공정의 변동이 존재하는 NAND 플래시 메모리를 위한 ADDA 알고리즘 기반 최적의 LDPC 복호 방식을 예측하는 에러 복구 기법을 제안한다. 제안 기법은 소스 도메인과 타겟 도메인의 데이터 분포가 상이한 경우 도메인 변화를 줄여 다수의 NAND 플래시 칩에서 높은 예측 성능을 보장하도록 학습한다. 제안 기법을 통해 다수의 칩에서 높은 정확도로 최적의 복호 방식을 예측하여 낮은 지연시간으로 읽기에 성공할 수 있음을 전산실험을 통해 확인하였다.

딥러닝 기반 의료 설문 결측 데이터 보간

이선민(Seonmin Lee),김동욱(Donguk Kim),이태현(Taehyeon Lee),김민태(Mintae Kim),김학재(Hakjae Kim),이성주(Sungju Lee) 한국정보과학회 2020 한국정보과학회 학술발표논문집 Vol.2020 No.12

Will Alsop 건축의 색채사용특징에 관한 연구

이선민(SeonMin, Lee) 한국색채학회 2015 한국색채학회 논문집 Vol.29 No.2

윌 알솝은 일상의 지루함과 싫증을 상쇄시키며, 즐거움을 제공하는 독창적이고 혁신적인 건축을 추구한다. 그의 건축색채 역시 건축의 개념과 같이 대담하고 강렬하며, 상상적인 느낌을 주기 때문에 사람들에게 즐거움과 함께 강렬한 흥미를 유발시킨다. 이와 같은 독창적인 색채는 그의 건축 사고과정인 스케치와 형태발상과정과 일치하고 있다. 따라서 본 연구는 건축개념과 직관적 스케치과정에서 나타난 직관적 색채가 치밀한 조화이론이나 배색의 체계를 근간으로 하지 않는 건축색채에 관한 연구로서 의의를 가진다. 그러므로 직관적인 회화나 스케치가 지닌 건축색채의 전환적 가치, 직관적 사고과정에 의한 색채 추출, 사용방식과 함께 색과 건축 개념과의 연계적 속성을 연구하였다. 연구의 범위는 2000년도 이후 알솝 회화와 건축을 대상작품의 전반적인 계획 개념은 그의 홈페이지에 소개된 내용과 포웰(Kenneth Powell)의 ‘Will Alsop 1990-2000’ 에 소개된 내용으로 계획의도를 파악하였다. 작품의 이미지 역시 색채가 적극적으로 사용되고 설명된 부분을 중심으로 진행하였다. 건축의 색채분석 범위는 개념스케치와 외부의 형태와 색채를 중심으로 하였으며 내부의 경우 외부와 연계되어 명확한 색채사용기법이 사용된 경우도 분석의 대상으로 하였다. 연구의 결과 알솝의 건축개념과 스케치에서 나타난 대담성과 높은 채도가 건축에도 사용되고 있었다. 비정형적인 형식과 상상적인 건축을 추구하는 그의 건축개념은 대담한 색의 선택과 정형적이지 않는 색의 배열, 상상적이고 이미지적인 패턴에 의해 구현되고 있었다. 특히 직관적인 스케치에서도 나타났던 다듬어지지 않은 형태를 추구하는 그의 건축개념은 정제되어 있지 않은 분명한 색채 변화, 높은 채도와 밝은 색에 의해 구현되고 있었다. 그리고 사람들에게 즐거움을 주기위한 건축개념은 상상력을 발생시키는 형태와 함께 투명색과 같은 재료의 속성과 혼합된 색의 복합적 사용 방식에 의해 극대화되고 있었다. 또한 공간의 명백한 경계 라인 형성은 색과 형태의 일치에 의해 구현되고 있었다. Will Alsop seeks to provide a unique and innovative architectural to delight and offset the boredom and weariness of life. And also his colors in architectural, because they offer to imagine feeling, daring and intense colors such as the concept of architecture, it would cause intense interest and enjoyment with people. This unique color is thought to be due to his architectural thinking process in the form of his ideas and sketches, was formed in the closely linked structure to the idea, not the process and by the color palette and color harmony theory. As to the architectural concept and associated structures of Will Alsop, the result at the architectural color features are as follows: First, daring and high saturation seen in the architectural concept and sketches of Alsop was also used in architecture. Boldness of the space, was shown to be implemented by multi color, bold color, contrast color, the color pixel and the juxtaposition of color. Second, his architectural concept of the pursuit of atypical forms and imaginative architecture was being implemented by the irregular arrangement of colors that do not have a bold choice and shaping of color, imagination and image patterns. Third, his architectural concepts seeking not to be smoothed and refined form that can be also easily found in an intuitive sketch, was being implemented by unrefined color change, the bright colors and high saturation. Fourth, the architectural concept for implementing a pleasant image, was made through the use of transparent color with a form that causes the imagination. And, it has been analyzed to be maximized by a combination of how the properties of the material and mixed color, like to the illumination color and metallic colors, etc. Finally, through the pursuit of a clear boundary lines of the original architectural form and space, it was analyzed to be implemented by the intense color being distinguished the type of space to shape, and match of color and form.

독일 집합주거단지의 색채사용 방식

이선민(Lee, SeonMin) 한국색채학회 2019 한국색채학회 논문집 Vol.33 No.2

The purpose of this study was to extract the characteristics of color usage and of collective housing in Germany with an emphasis on rationality, functionality, and connectivity. The methodology was to study four residential complexes: Kichsteigfeld near Potsdam, Tegel near Berlin, and Kichrode and Pelikan Viertel near Hanover in Germany. The analysis of color usage was based on “form,” “landscape,” “user,” “material,” “resident,” “policy,” etc. As a result of the study, first, four unified palettes with characteristics unique to the region were applied, and palettes including a basic color with small changes in color were used. Second, color was applied in a way that maintained simple form. Simple form maintenance was ensured through color matching of basic form and architectural elements. Third, a stable and pleasant residential environment image was maintained despite the use of various colors due to repeated and cross use of casting colors and auxiliary colors applied to the interior and exterior of all collective dwellings and public facilities. Fourth, the method of applying paint on the concrete surface occupied most of the time, and the color by the material was hardly used. Fifth, I could not find the location, name, signs, or decorative or intimacy graphics. Finally, the color of the building maintained a stable and pleasant residential environment due to the color matching the fences, outdoor common facilities, garages, and shared space. The results of this study are expected to be used as reference material for the planning and type calculation of settlement housing by understanding the relationship between color and form from the planning stage, together with the usage of collective housing color.

UN studio 건축의 색채사용특징에 관한 연구

이선민(Seonmin, Lee) 한국색채학회 2013 한국색채학회 논문집 Vol.27 No.4

모더니즘에 의해 사라진 장식이 디지털 건축으로 전환되면서 현대 건축의 색채도 전환적 관점을 맞이하고 있다. 현대의 건축 색채는 상징적 색채나 단조로운 구성방식에서 벗어나 색채 수의 증가와 함께 더욱 화려해지고 고밀도 화 된 장식체계로 전환되고 있다. 특히 옵아트가 가진 다양한 특성들이 현대건축과 긴밀하게 결합되면서 색채사용방식에 많은 가능성을 제시해주고 있다. 따라서 본 연구에서는 UN studio 건축을 대상으로 옵아트의 특성을 기준으로 색채사용방식을 연구해본 결과 다음과 같은 결론을 얻을 수 있었다. 첫째, 자연현상을 디지털로 표현하기 위하여 픽셀 화 된 고밀도의 병치적인 색채와 반복적 색채사용을 볼 수 있었다. 빛의 분산적 체계와 일치되는 색채사용방식으로 색채가 건물의 표피를 광학적인 이미지로 전환시키는 요소가 되고 있었다. 둘째, 정량적 변화와 점이적 색채사용을 볼 수 있었다. 특히 형태와 조명이 밀접하게 연계되면서 건축표피를 역동적으로 전환시킬 뿐만 아니라, 유동적 형태 변화를 더욱 강화하는 도구로 색채가 사용되고 있었다. 셋째, 빛으로 전환된 색채는 건축 표피와 겹쳐짐으로서 미디어와 같은 표피를 생성시키고 있었다. 일루젼에 의해 시각적 불안정성을 나타내는 다이나믹 한 표피는 구체적 형상이나 영역 성을 가지지 않는 미완성적 색채의 범위와 색채의 번짐과 혼합을 통하여 구현되고 있는 것으로 분석되었다. 이제 건축 색채는 디지털 건축의 중요한 장식 체계이자 계획개념의 실천도구로서 무한한 가능성을 제시하고 있음을 본 연구를 통하여 알 수 있었으며, 이와 같은 가능성에 대한 색채연구가 지속되어야 할 것으로 생각된다. Color of modern architecture is reaching a point of transition as the decoration disappeared by the modernism is switched to the digital architecture. The color of modern architecture has been introduced to high-density decorative scheme and become even more gorgeous with increasing the number of color away from symbolic color or monotonous composition method. Especially, various attributes on the optical art are presented. the many possibilities in the way of use of colors being combined with modern architecture. In this study, the following conclusions were obtained the characteristics of color use for UN studio architecture from the side of expression characteristics on optical art. First, it could be seen that repeated use of color and parrallel color of the pixelated density for the natural phenomena to a digital representation. Color was a fact as transition elements from the epidermis of building to color image of the optical system while matching colors using way that is consistent with light distributed system. Second, it could be found the quantitative change and the use of transitional color. In particular, as closely linked to the form and light, color was used for tool for strengthening, not only the dynamic conversion of architecture epidermis but also the change in flexible form Third, the colors switched from the light were to produce epidermis, such as the media to the overlaps of architecture epidermis. It was analyzed that the dynamic epidermis indicating the instability by a visual illusion color was being implemented through the unfinished range of colors and smearing and mixing of colors, not containing specific shape or area characteristics. Now, it could be found that color of architecture suggest the endless possibilities as a practical tool for planning concept and important decorative scheme in digital architecture. Therefore, it will be considered to be continuous study on the possibility of architecture color.

로버트 벤츄리 건축의 색채사용특징에 관한 연구

이선민(Lee, SeonMin) 한국색채학회 2017 한국색채학회 논문집 Vol.31 No.4

This study was conducted to extract characteristics of colors associated with architectural concept based on popularity for Robert Venturi architecture. The method of study was derived of the analysis standard based on the architectural concept in his book and criticism. I have looked at the concept and perspective of the architect in terms of what kind of color usage is being transformed and implemented by using 12 colors of works. As a result of analyzing the works, the following features could be extracted. First, the complexity of architecture has been strengthened by the double blending by introduction of materials and dual colors, a way not to match the base finish material, the style, form and color of architecture. Second, it was strengthened to the opposition to the architectural form by contrasting descriptive letters, patterns and colors, intrusion of contrasting colors with architectural colors. Third, it was considered the intimacy with the public by means of characters and patterns with increased readability and recognition, explanatory and familiar colors, playful and decorative patterns. Fourth, the symbolism of the building has been strengthened by the color that is stronger than the form, commercial symbols and symbolic colors indicating the name and use of the building. The results of this research are expected to be used in the introduction of the popular centered method of using colors and the establishment of perspectives pursued by Robert Venturi.

식생이 곡선수로 흐름에 미치는 영향

이선민(Lee, Seonmin),최성욱(Choi, Sung-Uk) 대한토목학회 2016 대한토목학회 학술대회 Vol.2016 No.10

외해 해조류 양식시설의 동적특성 해석

이선민(Seonmin Lee),황하정(Hajung Hwang),나원배(Won-Bae Na) 한국해양공학회 2013 韓國海洋工學會誌 Vol.27 No.6

Eco-friendly and sustainable seaweed biomass energy have been under the spotlight as the future of renewable energy. However, seaweed culture is primarily conducted inshore, with the research on offshore culture still an early stage. For massive biomass production, a systematic engineering approach is required to devise offshore seaweed culture facilities rather than the conventional empirical ones. To establish the fundamental behavior of seaweed culture facilities, the dynamic characteristics of a seaweed culture facility were analyzed in the study. For this purpose, numerical analyses of the seaweed culture facility (a frame type) were carried out by using the hydrodynamic simulation program ANSYS-AQWA. For the analysis, environmental loads were considered using the wave spectra and co-linear current, mooring variables were selected as parameters; and time domain analyses were carried out to acquire the time series responses and eventually the dynamic characteristics. Finally, the mooring performance was evaluated. It was found that the motion could be controlled by adjusting the buoyancy and mooring slope.

레이놀즈응력모형을 이용한 침수식생 패치 흐름 모의

이선민(Lee, Seonmin),최성욱(Choi, Sung-Uk) 대한토목학회 2019 대한토목학회 학술대회 Vol.2019 No.10

마뉴엘 고트랑 건축의 색채사용특징에 관한 연구

이선민(Lee, SeonMin) 한국색채학회 2016 한국색채학회 논문집 Vol.30 No.4

Manuelle Gautrand tells that architecture can uplift the human"s emotion or sentiment, and monotonous, flat and dry architecture not contained a soul should be avoided. Therefore, in the "disobedience" and "boldness", "plural", she has a view to be found the solutions for architecture. She shows a strong boldness architecture through the intense use of color with a symbolic and figurative forms. In particular, she embodies the colors through the "tight combination of forms and colors" in architecture. Therefore, analysis of the use of color appeared in 15 feature her artwork based on an analysis on her architectural concept and thought process, the followings were produced characteristics from her architecture. First, it could be found a use of strong color attention with boldness not familiar, to link for unmasking in her architecture. Second, it could be found the colors as a tool for generating output in the form introduced in conjunction with the process and strategies in her architecture. Third, it could seen that the color to enhance the spatial pattern with emphasizing the shape in her building. Last, it could seen that the color use for aspects of humanism by enriching the meaningless and non-reactive architecture.