단보논문 : 벡터내적 기반 카메라 자세 추정

전재춘 ( Jae Choon Chon ) 大韓遠隔探査學會 2008 大韓遠隔探査學會誌 Vol.24 No.6

본 저자가 제안한 카메라 외부표정에서 광속조정법에 기반한 카메라 자세계산 방법을 보완하기 위해 (전재춘과 Shankar, 2007,2008), 본 논문은 카메라 자세를 벡터내적으로 결정하는 방법을 소개한다. 카메라 위치를 기준으로 각 지상기준점의 방향벡터와 카메라 광축 단위벡터간의 사잇각을 통하여 이 단위벡터를 계산하는 것이다. 카메라 위치는 벡터내적에 의해 계산된다. 카메라의 수평/수직 단위벡터는 Yakimovsky와 Cunningham(1978)의 카메라 모델(CAHV)을 이용하였다. In order to improve a camera rotation calculation based on the bundle adjustment in Chon`s camera motion (Chon and Shankar, 2007, 2008), this paper introduces a method calculating the camera rotation. It estimates a unit vector in the optical axis of a camera through the angles between the optical axis and vectors passing a camera position and ground control points (GCP). The camera position is estimated by using the inner product method proposed by Chon. The horizontal and vertical unit vectors of the camera are determined by using Yakimovsky and Cunningham`s camera model (CAHV) (1978).

Allelopathic Potential and Antioxidant Activity of Leaf Extracts from Several Wild Plant Species

Chon,Sang-Uk,Cha,Young-Ju 한국자원식물학회 2004 Plant Resources Vol.7 No.1

Several wild plant species are known to contain biologically active substances that are allelopathic to weed species as well as antioxidant to foods. Plant extracts or residues from leaves of 4 species, Achyranthes japonica (speedwell), Cucumis sativus (Cucumber), Trifolium repens (white clover), and Vicia angustifolia (narrowleaf vetch) were bioassayed against Medicago sativa (alfalfa) or Echinochloa crus-galli (barnyard grass) to determine their allelopathic effects, and used for measurement of antioxidant activities. The aqueous extracts applied on filter paper significantly inhibited root growth of alfalfa. Aqueous extracts or residues from V. angustifolia showed the most inhibitory effect on alfalfa or barnyard grass seedling growth and followed by A. japonica and T. repens. Oxidative stability by Rancimat method, antioxidant activity by TBA (2-thiobarbituric acid) method and DPPH (1,1-diphenyl-2-picrylhydrazyl) radical scavenging activity for the ground samples or methanol extracts were the greatest in V. angustifolia, although were less than those of commonly used antioxidants, BHT (butylated hydroxytoluene) and ascorbic acid. These results suggest that the wild plant species had potent allelopathic and antioxidant activities, and that their activities differed depending on plant species.

Remarks on 'A Korean Grammar' - Especially Putting Emphasis on the Noun -

Chon,Hang-Keun 개신어문학회 1985 개신어문연구 Vol.4 No.-

Phytotoxic Effect of Lettuce (Lactuca sativa L.) Leaf Extract on Seedling Growth of Crops and Weeds

Chon,Sang-Uk,Choi,Seong-Kyu 한국자원식물학회 2004 Plant Resources Vol.7 No.1

Lettuce (Lactuca sativa L.) is known to contain water-soluble substances that are biologically active. Aqueous or methanol extracts and residues from leaves of lettuce plants were assayed to determine their allelopathic effects, and the causative allelochemicals from fractions were quantified by means of HPLC analysis and bioassayed. Extracts from oven-dried leaf samples were more phytotoxic than those from freeze-dried samples. Leaf extracts of 40 g L^-1 were completely inhibitory on root growth of alfalfa (Medicago sativa L.), while root growths of barley (Hordeum vulgare L.) and soybean (Glycine max L.) were less sensitive. Early seedling growth of both alfalfa and barnyard grass (Echinochloa crus-galli) was significantly reduced by methanol leaf extracts. The major allelopathic substances analyzed by HPLC were coumarin, trans-cinnamic acid, o-coumaric acid, p-coumaric acid and chlorogenic acid. Of them p-coumaric acid was found as the greatest amount (8.9 mg 100 g^-1) in the EtOAc fraction; only coumarin was found in all the fractions. Hexane and EtOAc fractions of L. sativa reduced alfalfa root growth more than did BuOH and water fractions. These results suggest that lettuce had potent herbicidal activity, and that its activity differed depending on type and amount of causative compounds by fraction.

불완전한 주체와 진리의 윤리

여태천(Yeo, tae?chon) 한국비평문학회 2012 批評文學 Vol.- No.46

이 논문은 이상의 시에서 불완전한 주체가 끊임없이 탈주하며 불안해하는 근본적인 원인을 살펴보았다. 많은 연구자들이 이상의 시를 현대적인 것에 대한 무한한 동경으로 이해한다. 한국문학사는 그를 미래의 시인, 혹은 종잡을 수 없는 난해한 시를 쓴 시인으로 기록한다. 하지만 그 근거로 제시할 만한 것들이 이상의 시에는 그렇게 많지 않다. 실제로 이상은 끊임없이 현재로부터 탈주하고, 자신의 삶으로부터 자신을 분리하고자 했다. 그것은 결여로서의 세계, 말하자면 불가능한 현실 속에서 어떤 가능성을 찾는 일이었다. 이상의 시에서 불가능한 가능성은 끊임없이 그것에 대해 질문하는 주체의 아이러니를 통해 드러난다. 진리를 향해 걸어갔던 이상은 어떠한 위로의 말도 귀담아듣지 않았으며, 철저하게 현실과 타협하지 않았다. 그러한 이상이 자신의 삶을 소비하면서 지킬 수 있었던 윤리란 민족의 운명과 함께 할 만큼 거창한 것은 아니었다. 그러나 그것은 그 시대의 모든 불가능한 것들에 대한 가능성으로서 한 개인의 특별한 모험의 형식이기 때문에 매우 문제적이다. This article looks around the fundamental cause what makes incomplete subject to be anxious in Yi Sang"s Poetry. Many of researchers think that Yi Sang"s Poetry is an infinite longing for modernism or modernity. Also history of Korean literature praises him as a future poet, or devaluates him who composes an esoteric poems. However, there is not much to provide reasonable evidence for modernism or modernity in Yi Sang"s Poetry. Actually Yi Sang tried to escape from the present and separated himself from his life of distress. Those are finding a possibility in impossible reality which is a world of lack. Such as impossible possibility is exposed come out ironical behavior of subject who constantly question about that. Yi Sang is walking to truth alone, so that he did not bow down his ears to words of comfort. And he did not comprise with the reality. Yi Sang stuck to his last to consume his life because he think it is ethics. It is not so great that the ethics casts in its fortunes with nation. But the ethics is a possibility of all impossible, because it is a special form which run the risk of fortunes. Therefore it is almost problematic.

TCP-New Veno: The Energy Efficient Congestion Control in Mobile Ad-Hoc Networks

Cho, N.,Chung, K. SPRINGER-VERLAG 2006 Lecture Notes in Computer Science Vol.- No.4096

Breast Cancer: Early Prediction of Response to Neoadjuvant Chemotherapy Using Parametric Response Maps for MR Imaging

Cho, N.,Im, S.-A.,Park, I.-A.,Lee, K.-H.,Li, M.,Han, W.,Noh, D.-Y.,Moon, W.K. Radiological Society of North America 2014 Radiology Vol. No.

隱匿 國有財産의 還收에 대한 小考

金天卿 단국대학교 대학원 1983 學術論叢 Vol.7 No.-

Recently, accident of transaeting real estate are increasing by national property. This hiden national property has been returned by nation authority. Because the returned property has been distributed as a dishonest out after 8·15 liberation. Therefore the third persons are suffered a huge loss, and so they will be threated the right of live. It is because of false registration which is not promoting public confidence in recodation sysem. Therefore the writer insists that our country will induce " The title examination system on Anglo American law which helps in abtaining the perpect right as investigation in advance for every defects on dealing purpose real estate as prior relief measure of real estate transaction accident. And as aftcr the fact system, the defects on real estate registration which has not found by recording of serial survey, the writer also insist that our country will induce "The Title Insurance system" on Anglo-American Law which compensate loss of defection on the real estate. Because, the writer belive that the above two system are better those test plan of "Notarial Act system." Therefore, the writer suggest that "the title examination system" and "the title insurance system" be adopted by law The writer will describe general concept of the above two system.

國際資本移動, 資本移動의 統制 및 資本自由化

李天杓 서울大學校 經濟硏究所 1990 經濟論集 Vol.29 No.3

孟浩然의 遊覽詩

宋天鎬 명지대학교 인문과학연구소 1988 인문과학연구논총 Vol.5 No.-

Meng Hao-Ran(孟浩然) was a famous poet in Tang(唐) dynasty who led van of a landscape poet group. He composed two hundred and forty five poems in his life. Forty poems of which were pure landscape ones and others concerned with landscape. We note in this paper that Meng Hao-Ran used to write poems without leaving the record of the year written. Consquently the writing year in most of his poems as well as many parts of his life were so unclear that it is very difficult to understand his poems completely. To solve these problems I chose only the poems on excursion among many of his poems, and examined them thoroughly to find but both the writing year of poems and his record of acoomplishment. I was able to make it clear through this paper that he made journey four times in his life. His first trip which was made at the age of 37 took him to the mouth of river Yang Zi(揚子), but the purpose of it was not revealed. For his second trip made between forty and forty one, he went to the capital Chang'sn(長安) for the civil service examination, in which he was not successful. For his third trip between forty three and forty five, he took a trip to Yue Zhou(越州) to see great temples, Buddhist priests, and monks. It made him to be infatuated with Buddhism and Taoism, and in this period he wrote a number of poems. His fourth journey inabled him to observe Shu(蜀), situated in the interior part of the north-west in China, which was a hilly region; however the year he made the trip is unknown. What is note worthy is that none of Meng's poems in his first tour was found, however fortunately a few lines of his were found together in Li Bai's(李白) farewell poems when Meng Hao-Ran was going to leave for the mouth of the river Yang Zi(揚子).