사람唾液 Superoxide Dismutase의 精製 및 性狀

이봉재,이병래,전현우,양종대,이근배 朝鮮大學校 附設 醫學硏究所 1986 The Medical Journal of Chosun University Vol.11 No.1

The purification and some properties of superoxide dismutase(O_(2-)-O_(2-) oxidoreductase, ECI. 15.1.1) of human saliva have been studied. Human saliva was collected from medical students, male and female together with smoking male students. The activity of superoxide dismutase was measured by the method of McCord and Fridovich. The superoxide dismutase was purified by ammonium sulfate precifitation, DEAE-cellulose and sephadex C-100 column chromatography. The results are summerized as follows : 1. Human saliva contain measurable amounts of superoxide dismutase. 2. The activities of superoxide dismutase. were 0.72U/㎖ in male and 0.73U/㎖ in female saliva. The activity of this enzyme was 0.81U/㎖ in smoker. Accodingly, there was no recognizabIe differences in the enzyme activity between smoker and non-smoker. 4. The human salivary superoxide dismutase was purified approximately 90 folds, and the molecular weight of the purified enzyme was estimated to be approximately 32,000 by gel filtretion. 4. Purified salivary superoxide dismutase has contained 1.83 atoms of copper and 2.00 atoms of zinc per molecule and was strikingly similar to the superoxide dismutase previonsly isolated from other cukaryotes by other investigatury. 5. The ultraviolet absorption spectrum of purified salivan- superoxide dismutase was 268㎚ which was similar to the value previously seen with the cytosolic enzyme of eukaryotes.

韓國經濟開發에 따르는 政治的 Cost

盧在鳳 서울大學校 附設 國際問題硏究所 1980 論文集 Vol.- No.6

지금까지 거론된 것은 본주제에 관련되는 광범함 문제들 가운데 일부분에 지나지 않는다. 다시 말하여 여기서는 주로 의식세계를 중심으로 하여 그것에 연관되는 현실을 정치의 국면에서 본 것이다. 그러므로 경제의 시각에서 볼 수 있는 문제들은 제외됐다. 이런 의미에서 이 소설은 하나의 서론적인 성격을 가진다고 할 것이다. 이런 한정된 범위에서 내릴 수 있는 결론에 이제 들어갈 차례다. 먼저 우리는 경제중심주의의 국제성과 또 그 권역성을 들었다. 이 경제중심주의는 내용에 있어서 본원적으로 탈정치라는 주장을 내포하고 있는 것인데, 역사적으로 보면 이것은 19세기의 자유주의의 전통에 이어진다. 다만 현대의 그것이 전세계의 것과 다른 것은, 자본주의와 사회주의라는 경제중심주의의 두 가지 변증법적인 선택가능성에 유의하여, 경제와는 별개의 범주에 속하는 민주주의를 전자와의 관계에 종식시키고, 현실적으로 그 발전은 경제발전의 결과일 수밖에 없다는 점에 있다.

國際 커뮤니케이션의 國際政治的 意義

盧在鳳 서울大學校 附設 國際問題硏究所 1985 論文集 Vol.- No.9

The main objective of this paper is to examine critically the interaction between international communication and international politics. As modern technology has developed rapidly, international communication has become increasingly globalized and penetrated into every aspect of national life in the world. At the first glance, international communication appears to have contributed to the common good of mankind. However, on close examination, the real workings of international communication tend to strengthen the existing structual inequalities among nations. Sometimes it has even generated new dimension of international inequality. This study thus intends to show how the real process of international communication, the media of which are mostly controlled by the advanced nations, has actually performed the function of maintaining the existing international political and economic hierarchical order. The main effects caused by such international communication in less developed countries' may be characterized, in a phrase, as the overflow of the Western "consumption culture." The absence of a countervailing cultural control device against it seems to give rise to new problems, namely the political, economic, social, and even security matters. Although the harmful effects of influx of uncontrolled international communication are so evident as reviewed in this paper, Korea does not seem to have drawn up an adequate plan to cope with the adverse effects of international communication. What is worse, some people seem to regard the inflow of the "consumption culture" as a device for national security, in the sense that it tends to guarantee the presence of foreign powers in the Korean peninsula, This is a regrettable phenomenon in that the kind of attitude seems to be a symptom of the crisis of national identity.

소형펀치시험의 유한요소해석에 의한 Mn-Mo-Ni 저합금강의 파괴강도 평가

李載奉,金民喆,吳聳俊,朴宰鶴,李奉相 대한금속재료학회 2002 대한금속·재료학회지 Vol.40 No.12

The critical fracture stresses(σ^*_f (sp)) in various low alloy steels for reactor pressure vessel(RPV) have been evaluated by finite element analysis(FEA) of small punch test in the cleavage temperature region(-150 ∼ -196℃). In order to improve the accuracy of the FEA results on small punch tests, the uniaxial stress-strain properties beyond the necking were optimized by comparing the results of uniaxial tensile test and its finite element analysis. The loaddisplacement curves and distances from center to fracture surface(D_f) of FEA results are in good consistence with the experimental results. The σ^*_f(sp) from small punch test in various reactor pressure vessel(RPV) steels were found to have a linear relationship to the values from the precracked specimens(σ^*_f(PCVN)). This result indicates that small punch tests could be a useful method to evaluate the cleavage fracture behavior of the low alloy steels.

신령버섯 고온기 지면재배법 개발에 관한 연구

조덕봉,김재창,최충식 광주보건대학 2001 論文集 Vol.26 No.-

Argaricus blazei Murill is an edible mushroom, which is beneficial for the anticancer and canceroidal. it grows naturally in Florida US and the centers of the field in Central and South America, but not in Korea. It has been planted in Japan since the Japanese biologists confirmed that this mushroom contains the immunity-activating material. Also, the method of cultivation of this mushroom has been developed and diffused in Korea since 1996. In Korea, it is mainly cultivated in Gyongbukdo, Gangwondo and so on, with 82.500㎡ of cultivation area. The method of ground cultivation is as follow; 1. make the ridges and rows into the greenhouse after the equipment of 85% of shade net with a double layer in the plastic greenhouse, then cover the ridges with 0.33㎜-thick of vinyl resins which are bored at 10㎝ of intervals. 2. stack the bran-mature-treated rice straw on 100~150㎏/3.3㎡ of the floor of vinyl resins. 3. inoculate the spawns at the bran-mature-treated rice straw. 4. raise them at 22~28℃ of temperature. control the temperature using an extractor fan or plastic wing of greenhouse in the season of high temperature. 5. the amount of fresh mushroom is about 30.6㎏/3.3㎡. This method makes it possible to cultivate the mushroom without any air-conditioning unit, and it can increase the coefficient of utilization of greenhouse. Therefore we can expect it to create higher quality and more amount of mushroom compared with traditional method. The high price of A. blazei prevents us from the extension of cultivation because it limits the customer class and the market. That is why we started to study about the ground cultivation method which makes it possible to extent the customer class and the market and to create the stable incomes by supplying the cheap mushroom of high quality.

中·소의 韓半島政策展望과 그 對策 : 韓國의 對中·소關係設定 方案모색을 中心으로 A Search for Some Possible Korean Relations with China and the Soviet Union

盧在鳳 서울大學校 附設 國際問題硏究所 1978 論文集 Vol.- No.5

Oligodeoxyribonucleotides의 합성을 위한 유기염기의 보호기 도입

노봉오,조재흥,신대현 조선대학교 기초과학연구소 1990 自然科學硏究 Vol.13 No.1

In this study the starting materials, 2'-deoxyriboadenosine and 2'-deoxyribocytidine, were protected selectively as the tritylation of the 5'-hydroxyl group and the N-acylation of the amino group with 4,4'-dimethoxytrityl chloride and benzoyl chloride, in a oneflask procedure. Protection of the amino group and the 5'-hydroxyl group in 2'-deoxyguanosine can be performed directly by isobutyric anhydride and 4,4'-dimenthoxytrityl chloride pyridine to obtain 2-N-isobutyryl-5'-O-dimethoxytrityl-2'-deoxyguanosine in a one-flask procedure. The protected deoxyribonucleotides have been crharacterized on UV, IR and ^1H-NMR spectroscopy.

資源問題 : 그 政策的 考廬 Policy Considerations

盧在鳳 서울大學校 附設 國際問題硏究所 1980 論文集 Vol.- No.6

세계적으로 자원문제가 관심의 대상이 되었던 1973년의 석유파동에서부터, 한국에 있어서도 자원문제는 현재와 미래에 있어서 심각한 문제로 인식되기에 이르렀다. 자원이 부족한 한국으로서는 이 문제가 단순히 경제생활의 한 부분의 문제가 아니라, 경제생활 자체의 의식과 구조의 전면적인 재조정을 요하는 전반적 문제라는 성격을 띠고 있다.

X-ray照射를 利用한 濟州産마늘의 發芽抑制

金在河,朴庸奉 제주대학교 1988 논문집 Vol.27 No.-

Quality of Cheju-grown garlic were compared with non-irradiated groups. While most of the non-irradiated garlic showed sprouting, no irradiated garlic gave any deteriorated quality by sprouting after 9 months storage and 12krad was found to be most effective dose in sprout inhibition. In weight change as well, iradiated group gave lower weight decrease than non-irradiated ones, but no significant differences were found between doses. Farm type out-door storage showed slightly higher weight decrease than in-door type. To see the changes of constituents during storage, contents of carbohydrate, total sugar and fructosan were analyzed. In general, constituents were decreased as the storage period goes by and also more decreased in irradiated samples than non-irradiated group, but the differences were not significant,

慶州지역의 亭子建築에 관한 硏究 : 그 建築的 類型에 관하여 on its architectural typology

申載億,金奉烈 울산대학교 1992 공학연구논문집 Vol.23 No.1

慶州地域에는 다른 地域에 비해 많은 亨子가 存在해 왔으나 이들에 대한 體系的 硏究는 물론 槪括的 硏究도 별로 수행되지 않았다. 본 論文에서는 學界별로 알려지지 않은 33개소의 亨子를 조사하고 이중 9개소에 대해서는 精密實測調査와 人文調査를 시행한 결과를 밝혀내었다. 또한 調査된 亨子建築의 類型學的 分類를 통해 이들의 典型을 밝혀내고 社會的, 機能的 變化에 따라 생긴 平面上의 變異를 살펴보았다. 이 地域 亨子建築의 典型은 失子의 武夷精舍를 모델로 한 玉山里 獨樂堂의 溪亨에서부터 비롯아며 이를 垈地의 條件이나 機能的인 차異에 따라 變化시킨 것으로 보인다. 애초의 몇 예에서 個인的 書室로 사용되던 亨子는 곧 先祖를 崇尙하기위한 齊室로 쓰이기 시작하였고, 이 지역의 儒學的 뿌리에 바탕을 둔 門中 亨子로 오늘날까지 이어져 내려오고 있다. There exist many traditional paavilions in Kyung Joo Province probably due to its inhabitants Confucian tendency, and still many pavilions are built even in these days. An outline survey covered 33 pavilions in the area and 9 of them were surveyed in extensive detail in this paper. The typological groupings of them were shown to explain the variations in plan according to socio-fuctional change. Pavilions typically followed the prototype of 'Kye-Jung', a 17 c. pavilion after Chu-tzu's theory, although they varied in plan according to their site or function. Pavilion appeared to have originated from a personal study but its function gradually cahnged into more a memorial or retualistic one pertaining to a family or a clan.