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).

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.

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.-

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.

日帝下(1920년대) 朝鮮人受刑人의 食生活狀況과 그 背景

김천호 한국식생활문화학회 2003 韓國食生活文化學會誌 Vol.18 No.1

The objects of this study are to find out (1) real situation of the food supply in prison under Imperial Government of Japan more cleary (historical meaning) and (2) which might help in understanding wrong present food consumption patterns in Korea which causes environmental as well as health problems. It is generally known that the length of the Japanese occupation for Korea is 36 years. However, it is concluded in this study that it was longer (70 years; from 1875 to 1945 from when Japanese Army attacked and occupied Yungjongdo and Kanghwado island to the time when they were defeated on World WarⅡ.) Korea was annexed by Japan in 1910 then the Imperial Government of Japan dismissed the Korea Army, controlled the Office of Justice and the management of prison by force. Since then about 50% of all land was fell into Japance Government ownership and 80% of Korean farmers became as tenant. After this change, Korea farmers were forced to pay extremely high rent (up to 80% of its harvest). Forced immigration, low price procurement of grain by Japanese government up to more than 30%of their production, was practiced. Accordingly, the food situation of Korean farmers became miserable, which may caused more violations of Imperial Japanese Law. Malnutrition, epidemic diseases, mortality rate of infants soared and average life expectancy shortened to 20-30 years old. This was the period of World Economic Crises and Food Crises in Japan. It was said then that if one Japanese comes to Korea then 200 Koreans will starved to death. Meanwhile, Proconsul Bureau of Chosun requested to the Department of Medicine, the Imperial University of Kyungsung to survery food supply situation of Koreans in prison throughout Korean Objectives of the survey then was not only to find out scientifically whether it is agreeable in maintaining prisoner's health and also find out the possibility to save food during food crisis. Survey was started from 1923 and ended in 1945, and it focussed on prisoners in the Seodaemoon Prison. This report is the outcome of the first survey. They concluded that the food supplied was nutritionally(had)no problem, in compare with those of workers in the factory, students in the dormitory in Japan and with those of prisoners in Taiwan. France and Germarny. Amount of grain supplied were different according to their work lord and was divided into 9 different levels. Total grain was consisted of 50% millet, 30% soybean and 20% indica rice(variety). However, there were no difference in the amount of supply of side dishes between work groups. For the highest working group group, 3280g of of boiled grain per day was supplied to make stomach full but as a side dishes, salty fermented bean paste, fermented fish and salty soups, etc was supplied. Deficiency of animal protein were observed, however, high intake of soybean may possibly caused animal protein deficiency problem. On the contrary, the intake of water soluble vitamins were insufficient but the level of calcium and iron intake seems to be sufficient, however, imbalance of intake of nutrition may caused low absorbation rate which might caused malnutrition. High intake of dietary fiber and low intake of cholesterol may possibly prohibited them from so called modern disease but may caused the defect in disease resistancy againist epidemics and other traditional disease. Over intake of salt(20-30g per day)was observed. Surveyors who attended in this survey, mentioned that the amount of food in take may nutritionally be sufficient enough but the quality of food(and possibly, the taste of food)were like that of animal feed. For the officials who received this report might consider that considering the war situation and food crisis. the supply situation of food in the prison may considered to be good enough(because they are not starving) But as a Korean who studied this report, one feel extremely pity about those situation because(situation of) those period were very harsh under the Imperial Law and keeping the Law by Korean were almost impossible, therefore, about one third adult violated the Law and were put jail. And they were treated like animals.

金融實名制下 金融去來秘密保護制度의 整備

李天杓 서울大學校 經濟硏究所 1993 經濟論集 Vol.32 No.2

모든 금융거래를 實名으로 해야 하게 됨에 따라서 금융거래자의 金融去來에 대한 情報가 公權力 또는 第 3 者에 의해 남용되거나 오용될 가능성이 커졌다. 이를 방지하기 위해서는 금융거래비밀보호제도가 정비되어야 한다. 그러나 금융거래비밀을 지나치게 보호하면 그것을 통한 범죄행위에 대한 증거의 추적등이 어려워져 사회안녕 질서유지에 制約을 줄 수 있다. 여기에서 금융거래비밀보호라는 私益과 범죄행위의 증거추적이라는 公益의 調和가 필요하게 된다. 8ㆍ12金融實名制는 종래보다는 진전된 금융거래비밀보호규정을 가지고 있다. 그러나 그것은 금융감독자의 정보요구에 대한 절차규정, 국세청의 정보요구에 대한 절차규정, 금융기관간 및 금융기관내부에서의 정보유통에 대한 제한규정 등에 의해 보강되어야 한다. 나아가 돈세탁방지법의 제정과 內部者去來防止장치의 강화에 의해 8ㆍ12金融實名制에서의 금융거래비밀보호규정은 補完되어야 한다.

VLSI를 위한 연속시간의 MOSFET-C Wien-Bridge 발진회로 설계

李鍾寅,申奎宰 群山大學校自然科學硏究所 1988 自然科學硏究 Vol.3 No.-

The improved Wien-Bridge oscillator circuits consisting of a new MOSFET-Capacitor gain amplifier is proposed. The performance of improved oscillator has tested using characteristics equation and open-loop measurement. The resulting circuit has been extended the range of operation of the oscillator. The new circuits can be fully integrated.