Takayasu`s disease(무맥증, pulseless disease)의 마취례

윤명자,전세웅 대한마취과학회 1970 Korean Journal of Anesthesiology Vol.3 No.1

A case of anesthesia for a patient of $quot;pulaeless disease$quot; (Takayasu's disease) was reported. During her general anesthesia, blood pressure was measured at the femoral artery by auscultatory method. There are numerous problems to evaluate the result of indrect measurements of arterial blood pressure obtained by auscultatory method. For accurate measurements of blood preasure, the relationship between the circumference of the arm and the blood preasure should be considered, which was emphasized by Ragan and Bordley. The auscultatory method of blood preasure measurement wsa reviewed.

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.

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.

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.

Isolation of Campylobacter jejuni from fresh produce: comparison of culture-based and PCR-based methods, and microbiome analysis of enriched cultures using metagenomics

Jung-Whan Chon(Jung-Whan Chon),Kidon Sung(Kidon Sung),Kun-Ho Seo(Kun-Ho Seo) 한국예방수의학회 2018 한국예방수의학회 학술대회자료집 Vol.2018 No.-

악성간엽종의 외과적 치료 -1례보고-

양수호,전양빈,전순호,김혁,정원상,최요원,전석철,전석훈,박문향,지행옥,Yang, Soo-Ho,Chon, Yang-Bin,Chon, Soon-Ho,Kim, Hyuk,Chung, Won-Sang,Choi, Yo-Won,Chon, Suk-Chul,Chon, Suk-Hoon,Park, Moon-Hyang,Jee, Heng-Ok 대한흉부심장혈관외과학회 1998 Journal of Chest Surgery (J Chest Surg) Vol.31 No.2

악성 간엽종은 유아와 태생기에서 매우 드문 종양이다. 악성간엽종은 성인에서 극히 드물고 섬유조직이외의 둘 또는 그 이상의 간엽성분으로 구성된 종양으로 결체조직의 어떤 형태로도 분화할 가능성이 있는 태생기 간엽에서 기원한다고 생각된다. 환자는 61세 남자로 2개월 전 가래를 동반한 기침을 주소로 검사를 받던 중 우폐상부에 매우 큰 종괴를 보이는 암종으로 입원하였다. 환자는 우폐상부 미세침윤조직검사상 편평상피세포암 의심하에 우전폐절제술을 받았다. 수술장 소견상 종괴는 흉벽과 심하게 유착되었으며 우폐하부까지 침습된 소견을 보이는 악성간엽종으로 진단되었다. 환자는 수술후 5,000rad의 방사선 조사를 받고 수술후 6개월째인 현재까지 재발징후없이 경과 관찰중이다. Malignant mesenchymoma is a very rare tumor presented during the embryonic and infant period and malignant mesenchymoma in the adult is extremely rare. Tumor is composed of two or more unrelated mesenchymal derivatives apart from fibrous tissue. These tumors are thought to be originated from embryonic mesenchyme capable of differentiating into any type of connective tissue. A 61 years old man with complaints of cough and copious sputum of onset of two months was admitted after initial examinations, showing a very huge mass over the right upper lobe. Right pneumonectomy with partial rib resection of 3rd, 4th, and 5th ribs was performed due to the initial diagnostic impression of squamous cell carcinoma by the fine needle aspiration biopsy. The operative field presented a mass locating across the interlobal fissure with severe adhesions to the chest wall. Postoperatively, the patient received 5,000 rads of radiotherapy and presently, 6 months later, has shown no signs of recurrence.