한국산 단풍나무속 목재식별에 관한 연구 - 심재 지질의 (脂質) TLC 에 의한 방법을 중심으로 -

박광우,김삼식 ( Kwang Woo Park,Sam Sik Kim ) 한국산림과학회 1984 한국산림과학회지 Vol.65 No.1

This study was identified 6 species of the genus Acer in Korea by the method of thin layer chromatography on lipids in heart wood, and researched affinity among the species for the characteristics of color reaction. The results were summarized as follows; 1) Total-lipid in heart wood of the six species was 4.39%, mean free-lipid was 2.85% and mean bound-lipid was 1.54%. 2) All the six species; A. ginnala, A. mono, A. negundo, A. palmatum, A. saccharinum and A, triflorum were identified by the characteristics of color reaction. Judging from the color reactions, A. palmatum and A. triflorum seem to be closer than other species.

한국산 단풍나무속의 잎의 형태 및 해부학적 연구

박광우,김삼식 ( Kwang Woo Park,Sam Sik Kim ) 한국산림과학회 1984 한국산림과학회지 Vol.64 No.1

This study was intended to identify 17 taxa. (5 varieties and 12 species) of the genus Acer in Korea on the basis of the shapes of stomata, the type of trichome on the different part of leaves, the shapes, arrangement and number of stele in cross section of petiole. The results obtained were summarized as follows; 11 The shape of guard cells of stomata in the genus Acer was anomcytical, and the size of the cells ranged from 10.25 to 21.00 μ in length and from 7.57 to 11.83 μ in width. 2) Eleven types of trichome on the leaf in the genus Acer were found; pilose, sericeous, velutinous, woolly, glabrate, puberulent, bladder hair, hispid, hirsute and uncinate. This characteristics also established a good criterion for identification of species. 3) The stele of petiole in the genus Acer was characterized by eustele and atactostele with polybranch, and the six groups of the shape of numerical change of stele; B$gt;M=T, B$lt;M=T, B=M=T, B$gt;M$lt;T, B$lt;M$lt;T, B=M$lt;T were found at Three parts of petiole, where, B : the number of ramified stele at the base part of petiole, M : the number of ramified stele at the middle part of petiole, T : the number of ramified stele at the terminal part of petiole. 4) The shapes of petiole in cross section of the genus Acer were a, b, c, d, e, f and g shape. The $quot;b$quot; shape appeared in 7 species and had the hightest appearance frequency. The $quot;a$quot; and $quot;c$quot; shape appeared both in 4 species. The $quot;g$quot; shape appeared in 3 species. And the $quot;d$quot;, $quot;e$quot; and $quot;f$quot; shape appeared in 2 species. In conclusion, it was possible to identify 17 taxa. of the genus Acer in Korea by the shape of stomata, trichome and the shape, arrangement, and number of stele in cross section at three parts of petiole.

2매 비구면 렌즈로 구성된 폰 카메라에서 미광 분포에 대한 연구

박광우,이종웅,Park, Kwang-Woo,Lee, Jong-Ung 한국광학회 2009 한국광학회지 Vol.20 No.1

A mobile phone camera consisting of two aspheric lenses is designed, and stray light distribution on the image plane is analyzed. We assume that most of the incident light is absorbed on the inner surfaces of the lens barrel and spacers, only a small fraction of the light is scattered uniformly. Assuming that 10% of the incident light is scattered on the barrel and spacers, the maximum value of stray light is 7.1% of the ideal image intensity. The result of analysis shows that stray light originated mostly from internal reflection on the ribs. The contributions of scattering by the barrel and spacers are relatively small. To reduce the internal reflection, thin absorbing plates are inserted between lenses, and the shapes of spacers are modified. After the redesigning of the lens barrel, the maximum value of stray light is reduced to 1.1% of the ideal image intensity. 2매의 비구면 렌즈로 구성된 카메라 폰 렌즈를 설계하고 상면에서 미광의 분포를 분석하였다. 미광분석에서는 렌즈 경통의 내면과 스페이서에서 대부분의 입사광은 흡수하고 일부만 균일하게 산란하는 것으로 가정하였으며, 경통과 스페이서에서 10%가 산란된다고 가정할 때, 미광의 최대치는 이상적인 상의 강도의 7.1%였다. 이 분석을 통하여 대부분의 미광은 렌즈 리브에서의 내부반사에 의하여 발생하며, 경통과 스페이서에 의한 산란의 기여는 상대적으로 작음을 알 수 있었다. 내부반사를 줄이기 위하여 렌즈사이에 얇은 흡광판을 삽입하고 스페이서의 모양을 수정하였으며, 경통의 재설계 후에는 산란광의 최대치가 이상적인 상의 강도의 1.1%로 감소하였다.

단풍나무속 수종의 (數種) 엽병 유관속지 (維管束枝) 변화형에 관한 연구

박광우,김삼식 ( Kwang Woo Park,Sam Shik Kim ) 한국산림과학회 1986 한국산림과학회지 Vol.73 No.1

This study was done to classify 15 species in the genus Acer through tracking of the changing shape of the vascular branch from the base part to the terminal part of petiole by the anatomical method. The basic vascular branches were 3 ea, except A. mandshuricum 3-4 ea. The vascular bundle was separated, moved and connected from the base part to the terminal part of petiol, the number of separated vascular branch was 11-32 ea., the number of connected vascular branch was 0-17 ea.., and the ratio of the separated vascular branch to the connected was 0.00-8.00. The maximum number of vascular branch in No, 39 of cross section part was observed in 12 species; A. ginnala and A. buergerianum were No. 11, A. truncatum and A. platanoides were No. 13, A. saccharium was No. 26. The number of the connected vascular branches with the main vascular branch were 0-6, while the number of the separated vascular branch were 0-7. On the ratio of separation to connection of the base vascular branch; $quot;A$quot;, $quot;B$quot; and $quot;C$quot;, the symmetrical shapes on the basis of $quot;B$quot; were A$gt;B$lt;C and A=B=C shape, the asymmetrical shape were A$lt;B$gt;C, A$lt;B$lt;C and A$gt;B$gt;C shape. The classical groups by the development of main vascular branch formation were obtained 7 groups of $quot;a$quot; through $quot;g$quot; shape. Especially, A. negundo and A. saccharinum were shown to have central vascular branches with unique changing patterns.

ECE 배광규격을 만족하는 5-chip LED 헤드렘프 설계

박광우(Kwang-Woo Park),Joo Jea-Young,Kim Da Ae 한국자동차공학회 2016 한국자동차공학회 학술대회 및 전시회 Vol.2016 No.11

기업지배구조와 주주부의 배분에 관한 연구

박광우(Kwang Woo Park),박래수(Rae Soo Park),황이석(Lee Seok Hwang) 한국증권학회 2005 Asia-Pacific Journal of Financial Studies Vol.34 No.4

우리나라보석 귀금속 수출산업의 현황과 문제점 및 대책 - 이리귀금속공단을 중심으로 -

박광우(Park Kwang Woo) 한국중소기업학회 1980 中小企業硏究 Vol.4 No.1

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헵벨의 『Maria Magdalena』에서 클라라의 죽음에 대한 책임문제와 비극의 원인

박광우 ( Park Kwang Woo ) 한국독일언어문학회 2019 독일언어문학 Vol.0 No.84

독일시민비극은 레싱의 『미스 사라 삼손』부터 헵벨의 『마리아 막달레나』까지 긴 역사를 가지고 있다. 전통적 시민비극에서는 지배계층과 피지배계층간의 갈등이 주제로 나타나는 반면에 헵벨의 『마리아 막달레나』에서는 더 이상 계층 간의 갈등이 나타나는 것이 아니라, 소시민적인 좁고 편협한 사고방식, 소시민적인 사회 자체에 대한 비판이 나타난다. 헵벨은 이 드라마로 현실사회를 적나라하게 고발하는 사회비극을 만들었는데, 이 비극은 가구를 만드는 목수 안톤의 가정을 통해서 그 당시 서민들의 힘든 사회상황을 적나라하게 묘사했다. 이 작품에서 안톤의 염세주의는 헵벨이 실제로 살아왔던 인생여정과 관련되어 생겨난 것이라고 생각할 수 있다. 본고의 중심내용은 안톤의 딸 클라라의 죽음에 대한 책임문제와 비극의 원인이다. 클라라가 자살을 선택함으로써 관객에게 큰 충격을 주는데, 왜 이런 상황까지 왔는지, 그 비극의 원인을 살펴보려고 한다. 또한 그녀의 죽음에 대한 책임은 어느 한 개인에게 있는지 아니면 다수의 사람들에게 있는지, 더 나아가 그 당시 사회의 도덕관념, 사회관념과도 관계가 있는 지를 살펴보았다. 클라라의 죽음은 아버지의 편협한 사고방식, 소시민적인 생활의 어려움, 결혼 전의 정조관념, 부모 자식 간의 갈등 등에서 그 원인을 찾을 수 있다. Das deutsche burgerliche Trauerspiel hat eine lange Geschichte von Lessings Miss Sara Sampson bis Hebbels Maria Magdalena. Im traditionellen burgerlichen Trauerspiel wurde die Kritik an Konflikten zwischen der oberen und unteren Klasse thematisiert. Im Vergleich mit diesen traditionellen burgerlichen Trauerspielen stellt Hebbel in seinem Drama Maria Magdalena neue Aspekte dar. Er kritisiert nicht mehr die Konflikte zwischen der herrschenden und der unterdruckten Klasse, sondern die kleinburgerliche Gesellschaft selbst. Mit diesem Drama schuf Hebbel ein realistisches Trauerspiel. Es beschreibt die damalige beschwerliche Lebenssituation der Familie Anton und ist damit durch einen unmittelbaren Gegenwartsbezug geprägt. In diesem Stuck wird die pessimistische Lebenseinstellung des Antons beschrieben. Dieser Pessimismus steht im engen Zusammenhang mit Hebbels schwieriger Lebenssituation selbst. Seine muhselige und beladene Kindheit wurde ein Motiv fur Maria Magdalena. In diesem Artikel sind die Verantwortung von der Frage nach dem Klaras Tod und die Ursachen vom Trauerspiel thematisiert. Zusammenfassend kann man kann sagen, dass fast alle Figuren eine Mitschuld an Klaras Tod tragen, wenn auch in unterschiedlichem Maße. Die Ursachen dafur sind in einer Kombination von Egoismus bzw. mangelndem Mitgefuhl und einer inneren oder äußeren Abhängigkeit von Gesellschaftsnormen zu sehen. Durch Klaras Tod werden Antons engherzige Denkweise, die Schwierigkeit im burgerlichen Leben, die Keuschheit vor der Ehe, die Konflikte zwischen Eltern und Kindern kritisiert.

한국산 Prunus 속 수 (數) 종의 (種) 엽밀선의 (葉蜜腺) 형태에 관한 연구

박광우(Kwang Woo Park),정우홍(Woo Hong Chong) 한국산림과학회 1990 한국산림과학회지 Vol.79 No.4

Morphological characters on the leaf nectar gland of Korean Prunus 4 species and 1 form were observed by SM. The results were summarized as follows ; The shapes of nectar gland on the plane figure were two, the circular and the irregular ovate. The species of circulr shape were P. maackii, P. maximowiczii, P. sargentii and P. yedoensis. The irregular ovate shape was only one species, P. pendula for. ascendens. The shapes of nectar gland on the side figure were the reentrant apices and the rounded. The reentrant apices were two shapes. First, the species of the center reentrant was three, P. madckii, P. sargentii and P. yedoensis . Seconei, the species of the irregular reentrant was P. pendula for. ascendens. The rounded apex was only one species, P. mazimotuiczii . Especially on the P. pendula for, ascendens, the upheaval situation on surface of leaf blade was due to the sinking of reverse part of leaf blade at the nectar gland. The point of this abnormal shape was well distinguished from the other species. On the frequency by the part of leaf with nectar gland, the species to be observed only at the leaf base was P. pendula for. aseendens, the other species was observed two part of leaf base and petioles. In this study, some Prunus species were well keyed out on the basis of the morphological characters of leaf nectar gland.

3D 후미등 이미지 구현을 위한 복합렌즈 설계

박광우(Kwang-Woo Park),김상유(Sang-Yoo Kim),이윤철(Yun-Chul Lee),김종국(Jong-Guck Kim),노수빈(Su-Bin Noh) 한국조명·전기설비학회 2018 한국조명·전기설비학회 학술대회논문집 Vol.2018 No.11