대추나무 미친병에 관한 연구 (1) - 이병식물의 (罹炳植物) 내외형태학적 특징 및 그 명명에 대해서 -

홍순우(Soon Woo Hong),김종진(Chong Chin Kim) 한국식물학회 1960 Journal of Plant Biology Vol.3 No.1

HONG, Soon-Woo, & KIM, Chong-Chin: A study of virus disease on chinese date tree (I). On the external and the internal morphogical characteristics of disease inrected plants. Kor. Jour. Bot. 3 (1). 32-38. 1960 Since the peeuliar virus disease of chinese date tree (Zizyphus jujuba Mill. var. inermis Rehd.) has been noted in South Korea around 1950, 70% to 80% of the economically important trees have been either completely destroyed or infected with the virus, severe damage has been noted, particularly, across the area ranged from middle east to the middle part of Korea, including Seoul area. Yoon,-Koock-Byung in 1958 first reported the disease and described it might be caused by a kind of yellows. But he did not conform in his paper that the disease is pecisely caused by yellows virus. The authors, hereby intend to identify the true cause of the disease of the chinese date tree by studying the external symptoms of the disease and the internal morphological characteristics of the diseaset plant which shows various abnormalities in contrast to the healthy checks. In view of fact that the leaves of the infected plants become yellowish in color similar to the peach yellows, aster yellows, it is likely to be identifiable as the common yellows. Furthermore, the abnormal characteristics observed by the authors are as follow: The floral organs such as petals, sepald, stamens, and pistil turn into vegetative leaves, the leaves on heavily infected plant appear as small sized one and also showing as a common witch`s broom like symptom. There are also an occuring of numerous advantitious shoots developed from both of stems and roots. The amount of photosynthetc starch grains increses iIn parenchymatous cells, necrosis takes place in mesophyll, Partlcularly, Palisade Parenchyma in the leaves of infected plants are distinguished in contrast to the healthy checks. From the symptoms and the present experiments described above, the authors are belived that the disease of chinese date tree is not caused by the yellows. It appears the disease is rather similar to the symptoms of sandal spike virus which was noted in India early in this centry. But the host plant of sandal disease, Santalum album L. and the insect vector, Jassus indicus Wal., have never been reported in Korean flora and the founa. The temperature and the other environmental factors is auite different Korea ard India. Thus the authors believe that the peculiar disease must be an endemic new virus origin in Korea and must be called as shoot cluster disease of chinese date tree.

21세기 기독교 언어

홍순우 국제기독교언어문화연구원 1999 기독교언어문화논집 Vol.3 No.-

Dr. Soon Woo Hong. 1999. Christian Language in the 21st Century. Collected Papers on Christian Language Culture. This papers aims at discussing the concept of the 21st century we are facing and inquiring into Christian language for its refinement, for humanity and the language are destined in partnership with each other. On the basis of the purpose, this paper puts forward an argument on a definition of language, Biblical language substance, linguistic permanence, and linguistic force in connection with national force. And final)y this paper reaches a conclusion. In conclusion, this paper proposes that in the 21s1 century we human beings should speak in partnership with one anther without any obstacle as the Spirit gives all of us utterance, filled with the Holy Spirit, as found in the Day of Pentecost. (Professor of Hoseo University, Former President of Seoul Theological University)

Virus 에 감염된 대추나무의 이병엽과 (罹炳葉) 건전엽에 (健全葉) 있어서의 유리 (遊離) amino 산의 정성적 비교

홍순우(Soon Woo Hong),하영칠(Yung Chil Hah) 한국식물학회 1961 Journal of Plant Biology Vol.4 No.1

Hong, Soon-Wooe and Yung-Chil, Hah (Dept. of Botany, Seoul National University, Seoul, Kerea.) A compantive investigation of free amino acids in healthy and virus diseased Chinese date tree. Kor. Jour. Bot. 4 (1)9~12 1961 : A comparative investigation of free amino acids content in healthy check and virus diseased leaves of Chinese date tree, Zizyphus jujuqa Mill var. inermis Rhed, was carried out by authors throughout the growing season of 1959 and 1960 from June to October. The methods of qualitative analysis of free amino acids applied in this experiment is followed by Moore and Stein.^(1.2). free amino acids determined in this experiment are shown in Fig. 1 and Table 1. As the figure and the table are shown, three more amino acids such as glutarmine, asparagine and histidine are detected in the diseased material. The additiolal amino acids which are known as diamines in diseased leaves are conspicuous. It is presumed that the diamine might be increased by the self-reproduoion of the virus in cooporation with certain enzymes which are carrying out the protein metabolism in the host protoplast in contrast with the healthy checks which is carrying out normal protein metabolism,^(3.4.5). From the histological point of view, the facts of phloem degeneration or necrosis in diseased leaves, it seems to interrupt to move free amino acids from roots to leaves and it possibly takes place an excessive productitn of NH_3 which is diaminated by the metabolism of nitrogen compounds in such conditioned leaves.^(6.8) Therefore, it is also presumed that additional diamino acids are accumulated in diseased leaves. There are no change of amino acids in both materials of this plant throughout the growing season qualitatively, and this result agrees with the paper of Knight.^9

대추나무 미친병에 관한 연구 (2) - 엽 (葉) 유관속구조에 미치는 해부학적 영향에 대해서 -

홍순우 (Soon Woo Hong) 한국식물학회 1960 Journal of Plant Biology Vol.3 No.2

HOHG, Soon-Woo (Kores U. Seoul. Korea): A study of virus disease on Chinese date tree (Ⅱ) On the anatomical effects of the shoot cluster disease on the vascular structure of the infacted plants. Kor. Jour. Bot. Vol.3 (2) 29-34 1960 From the view point of phytopathological anatomy, the author has tried to study the effect of the shoot cluster disease virus on the internal structure of vascular tissues of chinese date tree (Ziziphus jujuba var. inermis Rehd.) comparing healthy checks and diseased plants. The materials were collected at tht several sites, Kumgock-Ri, Masuc-Ri, Kyungi-Do, and near the campus of Korea University and around the area of Chongam-Dong, Seoul City, from August 15th to September 5th 1959. The leaf materials of healthy and diseased plants are fixed and aspirated in two kinds of killing solutions, formalin-acetic acid alcohol solution and Craf Ⅲ solution. Sections were cut at 5-10 μ thickness and stained with the double staining reagents of safranin and fast green. In this experiment the author has observed that there are marked structural changes in infected plants in contrast of healthy checks. As figures 3-7 show that the following characteric changes have taken place on infected plants: 1) the arrangement of irregularly developed sieve elements in phloem, 2) the degeneration of phloem elements, 3) the irregular arrangement of epidermis in mid-vein, 4) more necrosis is observed among the parenchymatous cells, 5) abundant accumulation of starch grains in parenchymatous cells,. In contrast to the above irregularities caused by the virus disease, the healthy checks appear normal structures as shown iu figures 1 and 2. In adding to the all features noted above, the author could also observe an interesting feature that the xylem elements in mid-vein vascular bundle tissues are considerably disorganized to show the unspecialized vessel elements, the irregularly arranged xylem elements. Hewever, this kind of irregularities which occur in xylem under the virus infection has not been reported previously. The features noted on the internal structure of vascular bundle under the condition of infection by the shoot cluster disease on chinese date trees appear to be more or less closely similar to the symptoms of the bunchy-top of banana and the yellow dwarf disease of barley in respect to the fact that whether phloem necrosis takes place as a primary symptom or a secondary symptom. In all these disease, primary histological changes of hypoplasia and hypertrophy are proceeded by the necrosis of phloem.

수군 녹조류 (數群 綠藻類) 의 유리 아미노산 분포에 따른 계통학적 연구 조류의 화학성분과 계통학적 상관성에 대하여 (3)

이민재(Min Jai Lee),홍순우(Soon Woo Hong),이인규(In Kyu Lee) 한국식물학회 1962 Journal of Plant Biology Vol.5 No.3

LEE, Min-Jai, HONG, Soon-Woo & LEE, In-Kyu, (Dept. of Botany, Seoul National Univ.) An analytical studies of free amino acid and its relationship among the main groups of green algae (Ⅲ). Kor. Jour. Bot. V (3) : 25-29, 1962. Succeeding the previous papers, nineteen species of marine green algae and three species of fresh water green algae are analyzed to the free amino acid patterns by paper chromatogram, and it has been described as containing significant qualities of the pattern in relation to phylogenetic studies. Those seem to have a tendency of recognizable pattern on inter-Orders and inter-Phyla of marine algae. And the patterns of fresh water and marine green algae are also carried out referring to these studies.

페놀베타인 유도체합성(XI)

우성주,박예진,황순호,홍유화,김남재,김인종,김신규 慶熙大學校 1996 論文集 Vol.25 No.-

Tetrahydroberberine-13-one was treated with ethylchloroformate to give the C_8-N bond cleaved product 1. On the treatment with Lawesson's reagent (LAS), chloroketone 2 derived from the hydrolysis of 1 afforded the thioketone 3. On the other hand, spirotype-chloroketone 4 was transformed to diaziridine 8 by a reduction, chlorination and aziridine introduction. Also, spirotype-chlorothioketone 6 was obtained from chloroketone 4.

人類平和와 人間環境

洪淳佑 세계평화교수협의회 1974 아카데미論叢 Vol.2 No.1

탄소성 변형을 받는 냉간 압연강의 X선 잔류응력 특성에 관한 연구

홍순혁,이동우,양광호,조석수,주원식 동아대학교 생산기술연구소 2000 生産技術硏究所硏究論文集 Vol.5 No.1

In textured material, diffraction angle 2θ usually shows a nonlinear relation against sin^2Ψ due to elastic anisotropy of crystals. SPHD and SPCD steel is cold-rolled carbon steel for automobile. The characteristics X-ray for stress measurement is Cr K_α and Mo K_α1characteristic X-ray. The sin^2Ψ-2θ diagram under elastic strain seems to have a linear behavior using regression line of data but has a nonlinear behavior in distribution of data by Cr K_αcharacteristic X-ray. As the plastic strain of specimen increases, the nonlinearity of 2θ with respect to sin^2Ψ increases remarkably. On the other hand, the diffraction angle 2 θ by Mo K_α1 characteristic X-ray shows a good linearity on sin^2Ψ-2θ diagram under plastic strain as well as elastic strain. Therefore, This paper presents the measurement of residual stress in cold-rolled carbon steel for automobile using penetration depth of Mo K_α1 charateristic X-ray and multiplicity factor of crystal diffraction plane.

신경회로망을 이용한 원공 결함 패턴 인식에 관한 연구

홍순혁,이동우,허건,조석수,주원식 동아대학교 생산기술연구소 2000 生産技術硏究所硏究論文集 Vol.5 No.1

Ultrasonic inspection of defects has been focused on the existence of defect in structural material and need has much time and expenses in inspecting all the coordinates (x, y) on material surface. Neural networks is information processing system modeling human brain and can have an application to coordinates (x, y) of defects by multi-point inspection method. Ultrasonic inspection modeling is optimized by neural networks which makes defect echo, back-wall echo and ultrasonic transducer units of input layer and absolute and relative coordinates of defects and defect pattern units of output layer. This method can predict coordinates (x, y) of defects within engineering estimated mean error Ψ.

Integrative L2 Grammar Teaching Using Grammar-Based Task Approach

Hong,Soon-woo 순천향대학교 인문학연구소 2005 순천향 인문과학논총 Vol.16 No.-

이 연구는 영어를 외국어로 학습하는 환경에서 영어를 학습할 때 어떻게 하면 문법을 효율적으로 습득할 수 있는지에 관한 고찰을 목적으로 한다. 근래에 들어 외국어 환경에서 영어문볍학습은 상대적으로 그 중요성이 덜 강조되어 오고 있는 추세이다. 이것은 이전의 문법위주의 영어학습 방법에 대한 비효율성의 실망감에서 기인했을 것이다. 외국어로서 영어의 습득에서 정확성이 먼저일까? 아니면 유창함이 먼저일까? 이 질문이야 말로 외국어로서 영어를 가르치는 근본적인 출발점이라 할 수 있다. 분명 한국의 전통적 영문법 교육은 그 한계가 분명해 보였다. 모든 문법을 외재적으로 습득하고도 학습자들은 자연스러운 발화가 전혀 이루어지지 않은 사례가 너무 많기 때문이다. 그렇다고 해서 외국어환경에서 직접적 문법을 학습시키지 않고 자연스러운 습득을 기다리는 것도 그 한계가 분명 해 보인다. 내국인 없는 원어민만의 수업으로 완전한 영어습득이 가능해 보이지 않기 때문이다. 본고에서는 외재적 문법설명보다는, 의사소통적 교수법의 틀 안에서, 학습자들이 스스로 문법을 깨 닳게 만드는 Grammar-Consciousness-Raising Task (GCRT)를 통해서 학습할 때, 다른 TBA (Task Based Approach)와의 차이점을 알아보고 그 효율성에 대하여 고찰해 본다. GCRT는 외국어의 환경에서 매우 효과적인 방법임에는 분명해 보인다. 하지만 주어진 주제에 대해 말하고 싶어 하지 않는 학습자 들이나, 기초적인 대화조차 할 수 없는 초보자들에게는 적합하지 않는 단점도 알 수 있었다.