소리의 공간 제어를 위한 구형 다채널 스피커 어레이 설계

강동수,최정우,이정민,김양한,Kang, Dong-Soo,Choi, Jung-Woo,Lee, Jung-Min,Kim, Yang-Hann 한국음향학회 2012 韓國音響學會誌 Vol.31 No.4

The objective of this paper is to design multichannel spherical loudspeaker array by considering various positioning methods such as Gaussian grid, Lebedev grid and packing method. For the spatial sound manipulation, which is to make desired sound field by controling multiple sound sources, the Kirchhoff-Helmholtz integral states that sound fields can be reproduced in terms of infinite control sources on the integral surface. But since we cannot control infinite number of sources for the implementation, we have to allocate finite number of sound sources which can approximately act as infinite number of sources. To manipulate sound field inside of a sphere (which is typical example of three dimensional array) by controlling sound sources on the surface, three methods of allocating sound sources, which are Gaussian grid, Lebedev grid and packing method, are reviewed. For each geometry, the performances of manipulation rendered by time-reversal operator and higher-order ambisonics are compared. The objective of this paper is to design multichannel spherical loudspeaker array by considering various positioning methods such as Gaussian grid, Lebedev grid and packing method. For the spatial sound manipulation, which is to make desired sound field by controling multiple sound sources, the Kirchhoff- Helmholtz integral states that sound fields can be reproduced in terms of infinite control sources on the integral surface. But since we cannot control infinite number of sources for the implementation, we have to allocate finite number of sound sources which can approximately act as infinite number of sources. To manipulate sound field inside of a sphere (which is typical example of three dimensional array) by controlling sound sources on the surface, three methods of allocating sound sources, which are Gaussian grid, Lebedev grid and packing method, are reviewed. For each geometry, the performances of manipulation rendered by time-reversal operator and higher-order ambisonics are compared.

포르투갈 교통사고 사상자 절반줄이기 성과에 대한 고찰

강동수,김기용,Kang, Dong-Soo,Kim, Ki-Yong 대한교통학회 2010 교통 기술과 정책 Vol.7 No.3

교통안전 선진국 진입을 위한 제7차 국가교통안전기본계획

강동수,이헌주,신성필,Kang, Dong-Soo,Lee, Heon-Ju,Shin, Sung-Pil 대한교통학회 2011 교통 기술과 정책 Vol.8 No.4

연구문헌분석을 활용한 교통문화지수의 개선방향에 관한 연구

강동수,조성진,이수일,김태호,Kang, Dong-Soo,Jo, Sung-Jin,Lee, Soo-Il,Kim, Tae-Ho 대한교통학회 2011 교통 기술과 정책 Vol.8 No.4

흄의 철학에서 상상력의 성격과 의미

강동수(Kang, Dong-Soo) 새한철학회 2012 哲學論叢 Vol.70 No.4

흄은 상상력을 정신적이며 후천적인 기능으로 해명하였던 최초의 철학자로 평가될 수 있다. 그의 상상력 해명은 다른 특색을 가지고 있다. 그는 자신의 『인성론』에서 상상력의 성격과 한계에 대해서 해명하였다. 그에 따르면, 상상력이 관념연합 원리들에 따라 작용하는 정신 근본적인 기능이며, 그 원리들은 경험과 습관을 통해서 형성된다. 이러한 상상력은 선천적인 능력이 아니라 오직 경험을 통해서 습득되는 기능이다. 상상력은 주어진 관념을 기계적으로, 즉 수동적으로 조합하여 오성에 전달하는 매개기능도 아니며, 그리고 없어도 좋을 부차적인 기능이 아니다. 상상력은 필요에 따라 그리고 상황에 맞게 능동적으로 관념들을 분리하고 재결합하는 근본 기능이다. 이런 성향은 상상력과 이성의 동근원성에서 유래한다. 흄은 상상력에 개입하는 원리들을 두 종류로, 즉 영원하고 불가항력이며 보편적인 원리와 가변적이며 불규칙적인 원리로 구분한다. 영원하고, 불가항력적이며 보편적인 원리들은 모든 사유와 활동의 기초이며, 그 원리들이 제거되면 곧 바로 인간의 본성도 사라지고 폐허가 된다. 반대로 가변적이고 불규칙적인 원리는 인류에게 불가피하지 않고 필연적이지도 않다. 이러한 구분은 그가 구획하였던 상상력, 공상, 망상 사이의 차이를 이해하는 데 도움이 된다. 공상과 망상은 가변적이고 불규칙적인 원리에 따라 상상력이 작용하는 경우에 적용되는 명칭들이다. 상상된 관념이 공상인지 아니면 망상인지 판가름하는 것은, 일상적인 이해와 다르게, 인상이 아니라 습관과 신념이다. David Hume has elucidated imagination as an acquired mental faculty. In his elucidation a different character was concealed. We inquired into the character and meaning of imagination that treated in Hume’A Treatise of Human Nature. According to his explanation, imagination is a mental, active and fundamental faculty which is operating with principles of union of ideas. These principles are formed through experiences and customs. Imagination is not a function which mediates mechanical, passively between sense and understanding, and is not a secondary function which do without it. Rather than Imagination is a fundamental and active faculty which separates or unites suitably with ideas by a necessity and a situation. This disposition originate in the same origin of imagination and reason. Hume distinguished principles in imagination. The one is permanent, irresistible, and universal principles. These are the foundation of all our thoughts and actions. The other is changeable, weak, and irregular principles. If universal principles would be removed from imagination, then human nature must be perished and gone to ruin. But irregular principles are neither unavoidable to mankind, nor necessary. The difference of principles is useful to understanding for the difference between imagination, fancy and caprice. By him, differently to ordinary comprehension, it is not in an impression but in the custom and belief that imaginary idea is decided as a fancy or caprice.

삼중화된 회로에서의 결함 감지를 위한 방법에 관한 연구

강동수(Dong-Soo Kang),이종길(Jong-Kil Lee),장경선(Kyoung-Son Jhang) 한국정보과학회 2011 한국정보과학회 학술발표논문집 Vol.38 No.1B

SRAM-based FPGAs are very sensitive to single event upset(SEU) induced by space irradiation. To mitigate SEU effects, space applications employ some mitigation schemes. The triple modular redundancy(TMR) is a well-known mitigation scheme. It uses one or three voters as well as three identical blocks performing the same work. The voters can mask out one error in the outputs from the three replicated blocks. One SEU error in TMRed circuits can be masked but it needs to be detected for some reasons such as to analyze the SEU effects in the satellite or to recover the circuits from the error before additional error occur. In this paper, we developed a fault detection circuit and reporting system to detect a fault on the TMRed circuits. To verify our error detection circuit and reporting circuit, we performed an irradiation test at MC-50 Cyclotron. Experimental results showed that error detection circuit can detect a fault on the TMRed test circuit in radiation environment.

이매패의 Carotenoid 색소성분 - 1. 홍합과 진주담치 근육의 Carotenoid 색소성분의 비교

강동수(Dong-Soo Kang),하봉석(Bong-Seuk Ha) 한국식품영양과학회 1991 한국식품영양과학회지 Vol.20 No.4

홍합과 진주담치 근육의 carotenoid를 TLC, column chromatography로 분리하고, NaBH₄에 의한 환원반응, I₂에 의한 이성화반응 및 UV-visible spectrophotometer로 비교하여 다음과 같은 결론을 얻었다. 홍합 근육의 총 carotenoid함량은 수컷이 0.4㎎%, 암컷은 2.7㎎%이며, 주 carotenoid는 수컷이 3, 4, 3’-trihydroxy-7’, 8’-didehydro-β-carotene 26.3%, pectenoxanthin 24.8% 및 mytiloxanthin 23.4%였고, 그외 pectenolone 14.0%, diatoxanthin 5.1%의 순으로 함유하며, 암컷은 mytiloxanthin 33.4%, pectenoxanthin 22.8% 및 3, 4, 3’-trihydroxy-7’, 8’-didehydro-β-carotene 22.5%였고, 그외 pectenolone 9.9%, diatoxanthin 6.1%의 순으로 함유하여 서로 유사하였다. 진주담치 근육의 총 carotenoid함량은 수컷이 1.1㎎%, 암컷은 3.2㎎%이며, 주 carotenoid는 수컷이 mytiloxanthin 33.8%, pectenoxanthin 28.4%였고, 그외 diatoxanthin 18.1%, pectenolone 9.7%, 3, 4, 3’-trihydroxy-7’, 8’-didehydro-β-carotene 5.5%의 순으로 함유하며, 암컷은 pectenoxanthin 44.7% 및 mytiloxanthin 35.6%였고, 그외 pectenolone 8.7%, diatoxanthin 5.0% 및 3, 4, 3’-trihydroxy-7’, 8’-didehydro-β-carotene 3.1%의 순으로 함유하여 서로 유사하였다. 그러나 홍합과 진주담치의 근육 carotenoid는 암컷이 수컷보다 총 carotenoid 함량이 높은 함량치를 보였고, diatoxanthin과 3, 4, 3’-trihydroxy-7’, 8’-didehydro-β-carotene의 함량에서 차이를 보였다. Carotenoid pigments from muscle of mussel, Mytilus coruscus, and blue mussel, Mytilus edulis, were separated by thin layer and column chromatography. The isolated carotenoids were identified by comparative test with reference carotenoids, reduction with sodium borohydride, isomerization with iodine and absorption spectrophotometry. The carotenoid contents in the muscle of mussel were 0.4㎎% in male and 2.7㎎% in female, and the carotenoids were composed of 23.4%, 33.4% mytiloxanthin, 26.3%, 22.5% 3,4,3'-trihydroxy-7', 8'-didehydro-β-carotene, 24.8%, 22.8% pectenoxanthin, 14.0%, 9.9% pectenolone and 5.1%, 6.1% diatoxanthin in male and female, respectively. While, the carotenoid contents in the muscle of blue mussel were 1.1㎎% in male and 3.2㎎% in female, and the carotenoids were composed of 33.8%, 35.6% mytiloxanthin, 28.4%, 44.7% pectenoxanthin, 18.1%, 5.0% diatoxanthin, 9.7%, 8.7% pectenolone and 5.5%, 3.1% 3,4,3'-trihydroxy-7', 8'-didehydro-β-carotene in male and female, respectively.

RF 마그네트론 스퍼터링을 이용한 WO₃/Ag/WO₃ 투명전극의 전기ㆍ광학적 특성 연구

강동수(Dong-Soo Kang),이붕주(Boong-Joo Lee),권홍규(Hong-Kyu Kwon),신백균(Paik-Kyun Shin) 대한전기학회 2014 전기학회논문지 Vol.63 No.11

WO₃/Ag/WO₃ multilayer was researched by using RF magnetron sputtering with transparent electrode. Process gas flow ratio with Ar/O₂ were selected the optimum conditions at 70sccm/2sccm and WO₃ thin film at its conditions was appeared at transmittance about 80% in the visible light region to the average. WO₃/Ag/WO₃ multilayer thin films were fabricated from the same process condition which was the same gas flow ratio of Ar and O₂ WO₃/Ag/WO3 thin films were appeared transmittance about 93% and sheet resistance about 6.41Ω/□. From the SEM images, each thin films were appeared when WO₃ is 40㎚ and O₂ is 10㎚.

비코와 노발리스의 저작들에서 시적 수사학의 철학적 의미에 관한 연구

강동수(Kang, Dong-Soo) 새한철학회 2021 哲學論叢 Vol.105 No.3

이 연구는 비코(Giambattista Vico)와 노발리스(Novalis)의 저작 속에서 시적 사유가 철학에서 가지는 의미를 고찰하였다. 시적 사유는 철학적 사유의 원천적 특성을 지시하는 용어이다. 그들에게 시적 지혜 또는 질적 사유로 명명된 시적 사유는 객관주의의 양적 사유에 빠져서 창백해진 철학에 생기를 되살리는 계기를 제공한다. 시적 사유는 감각, 지성과 의지가 하나로 통합된 감정을 표현하는 형태이다. 객관주의는 감각과 지성을 분리하면서 감정을 사유에서 배제하여 생동성을 상실하게 만든다. 시적 사유의 감정은 개별 주관이 아니라 공동체의 공감으로 승화된 것이다. 이 감정은 철학이 신비와 경이로 부르는 초월적인 정신의 현전이며 초감각적인 현상을 해명하려는 토대이다. 철학은 공감적 세계가 존재한다는 경이에서 출발하며, 개별적인 감각에 내재하는 공감적 세계를 관조하는 보편적 사유가 된다. 공감적 세계는 초감각적인 현상으로서 정신이 대면해야 할 지평이다. 객관주의가 공감적 세계의 경이감을 배제하며 철학의 생동적 사유를 말살하였다. 철학은 시적 사유에서 잃어버린 경이를 발견한다. This study examined the meaning of poetic thinking in philosophy in the works of Giambattista Vico and Novalis. Poetic thinking is a term that indicates the original characteristics of philosophical thinking. For them, poetic thought, named as poetic wisdom or qualitative thought, provides an opportunity to revitalize the philosophy that became pale by falling into the quantitative thought of objectivism. Poetic thought is a form of thought in which the senses and intellect are integrated into one, in which image and emotion are integrated. Objectivism is criticized as causing the loss of the vitality of thinking by removing emotions from the senses. The emotion of poetic thought is sublimated by the sympathy of the community, not individual subjectivity. This emotion is the manifestation of the transcendental spirit, which philosophy calls mystery and wonder, and is the basis for unraveling the supersensory phenomena. Philosophy starts from the wonder of the existence of an empathetic world, and becomes a universal thought that contemplates the empathic world inherent in individual senses. The empathic world is a supersensory phenomenon and is the horizon the mind must face. Objectivism eliminated the wonders of the empathetic world and abolished the dynamic thinking of philosophy. Philosophy discovers lost wonders through poetic thinking.

양어사료의 어분대체원으로서 수산가공부산물의 이용 1. 오징어 가공부산물의 효소적 가수분해물의 성장효과

강동수(Dong Soo KANG),배태진(Tae Jin BAE) 전남대학교 수산과학연구소 1999 수산과학연구소논문집 Vol.8 No.-

To define the effects of various levels of dietary enzymatic hydrolysates using squid by-product for fish meal protein on growth and body chemical compositions of korean rockfish were bred for eight weeks with the four experimental diets of different squid hydrolysates. Effects on the weight gain and feed efficiency in korean rockfish, enzymatic hydrolysates using squid by-products addition group were very effective. In korean rockfish, weight gain ratios of enzymatic hydrolysates addition group were increased at 464.9~490.0%, compared with 385.2% at control group after eight weeks growth trial. Crude protein and lipid contents were increased, whereas moisture and crude ash contents were decreased in the chemical compositions of dorsal muscle after eight weeks growth trial. The total amino acids of squid enzymatic hydrolysates addition group were 3,615.4~3,714.4㎎%, compared with 3,379.7㎎% at control group after eight weeks growth trial. Amino acids such as glutamic acid, aspartic acid and lysine were rich in all the diet groups. Percentage of saturated acids(14:0), monoenoic acids(14:1), polyenoic acids(18:2n-6, 20:2n-6) were increased, but saturated acids(24:0), polyenoic acids(20:3n-3, 22:4n-6, 22:5n-3) were decreased after eight weeks growth trial.