DEHPA 담체함유 액체막에 의한 우라늄(Ⅵ) 추출

김우식,현영진,염경호,탁희경 연세대학교 산업기술연구소 1985 논문집 Vol.17 No.1

The extraction of uranium(VI) through a W/O/W liquid membrane containing DEHPA was studied in the counter transport system. The optimum stable conditions of W/O emulsion were determined; the optimum concentrations of surfactant span 80 and paraffine oil were 2 Vol.% and 50 Vol.%, respectively. The extraction results showed that more than 95% of uranium(VI) was extracted during 10 minutes when the carrier concentration was 4 Vol.%, internal aqueous phase; 1N-H₂SO₄solution, external aqueous phase; pH 2 and mixing speed; 350 rpm.

브라질 경제 : 정부의 실패인가? 시장의 실패인가? Government Failure? Or Market Failure?

김우택 서울大學校 스페인中南美硏究所 1991 이베로아메리카硏究 Vol.2 No.-

This paper discusses the Brazilian economic policies during the last 20 years from the standpoint of what economic reasoning supported that kind of policies. And we investigate whether these policy-decisions are based on the belief in market mechanism or,on the contrary, on the idea that government can do better than market. If the underlying logic of policy making was the latter, we may conclude that the current Brazilian economic crisis is the outcome of government failure. The basic lines of economic policies in the 70s are: 1) promotion of deficit financed growth and 2) acceleration of government led import substitution. Motivated by the oil shock, the implementation of these policies were possible only through increasing borrowings of recycled petro-dollars. Inflation and consequent economic instability caused by the fiscal deficits and credit expansion became a burden to persistant growth, while gains from these were insignificant. The 1980s were marked by recurrent crises of debt and inflation. And economic policies of the 80s focused on these two issues. Bacuse of the requirement to meet the debt services, external economic policy turned to making of trade surpluses. And domestic economic policy was nothing but stabilization program to control the increasing inflationary pressure. Policies of the 80s, as those of the 70s, were inspired not by price mechanism of market, but were attempts to solve the problems by govermnent regulation and market control. We conclude that the current Brazilian economic crisis is government made. This government failure originated from the misjudgement of reality and the belief on wrong economic theory which promises prosperity without cost.

對外 債務 : 償還 能力 面에서 본 政策 比較 Comparing policies from the perspective of 'capacity to repay'

金宇澤 서울大學校 스페인中南美硏究所 1992 이베로아메리카硏究 Vol.3 No.-

This paper intends to compare policy responses to debt crisis in major debtor countries. Many differences in policy responces have been widely recognized between Korea and Latin American debtor countries. We restrict our attention to the way that these countries cope with the balance of payments difficulties arising from servicing the debt. We chose the foreign exchange earning ability as a indicator of 'capacity to repay'. If debt/export ratio decreases, we may say that the capacity to pay improves. Starting with this premise, we derived a condition which warrants the non-deterioration of capacity to pay. And this condition permits us to conclude the followings. First, the difference between international interest rate and debtor countries' export growth rate is the key to dynamics of debt crisis. If the growth rate of export of borrowing countries remains well above the international interest rate, the debtor countries can support some current account deficits, as long as they are not very large, without deteriorating the capacity to repay. Second, the importance of export growth rate increases with debt/export ratio. The implication of these conclusions is that, for the most severly indebted countries which have high debt/export ratio, it would be advantageous to pursue export driving strategies and to keep the export growth rate high. However, the major Latin American debtors opted for more handy solution of import restrictions and trade balance surpluses. It was very costly choice for the Latin Americans.

韓國民俗假面劇의 固有舞臺構造에 關한 硏究

金遇鐸 성균관대학교 대동문화연구원 1975 大東文化硏究 Vol.10 No.-

Korean Traditional Folk Dramas have had no set stage of their own. They have been performed on an improvised round-in stage tentatively set for occasions. The purpose of the present study is to make the proper stage for and give the acting place of their own to the traditional mask dramas. The study, therefore, investigates into the traditional folk dramas representative in Korea. It gathers the common elements, physical and conceptional, of the stage out of the still primitive ground stages of the mask dramas, and for them attempts to shape theoretically the first open air theatre with the truncated circular stage in the centre and the amphitheatric auditorium around it.

열대 원예작물의 특성과 재배법에 관한 조사

정삼택,이우승,김익홍 경북대학교 1987 새마을 硏究論叢 Vol.7 No.-

This investigation was conducted to know the characteristics and cultivation method of some tropical crops; fruit tree, vegetable and ornamental flowers growing in Tropical regions by literatures. 1) Most of fruits were utilized as raw-fruit itself and processing techniques are needed for the merchandise. Some fruit is lack of cultivation method. Pine apple and banana are the most common fruit in these regions. These fruit products can be exported to the temperate zone regions for the net-income of the farmers. 2) Vegetables are cultivated for the part of vitamin supply and on the whole, cultivation method is underdeveloped yet. But some vegetables are grown for the industrial oil, medicine manufacture, feed forage and green manure. 3) Ornamental flowers are grown for the cutflower and garden flower. From these results, It is believed that introduction and adaptability test must be conducted for the increased net-income of Korean farmers.

Holstein種의 血液化學値에 關한 硏究 : -Ⅰ. 成牝牛의 血液化學値- -Ⅰ. Blood Chemical Values of Adult Cows -

李載洪,林貞澤,韓邦根,金宇權 全南大學校 農漁村開發硏究所 1981 農業科學技術硏究 Vol.16 No.1

國內에서 飼育되고 있는 Holstein種成牝牛의 血液化學値를 얻고자 全南地域에서 飼育되고 있는 外觀上 健康하다고 認定된 經産牛 385頭를 對象으로 血液化學値를 調査檢討하여 다음과 같은 結論을 얻었다. 1. 平均血淸TP量은 7.35(5.10∼10.20)g/100㎖이었으며 年令의 增加에 따라서 漸漸 증가하는 傾向이 있었다. 2. 平均血淸Alb量은 3.51(2.50∼4.40)g/100㎖이었으며 年令別 差異는 認定할수 없었다. 3. 平均血淸Glb量은 3.84(1.40∼7.20)g/100㎖이었으며 年令의 增加에 따라서 漸漸 증가하는 傾向이 있었다. 4. 平均血淸 A/G比는 0.91(0.43∼2.64)이었으며 年令의 增加에 따라서 漸漸 증가하는 傾向이 있었다. 5. 平均血淸 cholesterol量은 179.38(46.4∼336.0)g/100㎖이었으며 年令의 增加에 따라 增加하여 4年牛를 頂点으로 다시 下向의 傾向을 나타내고 있었다. 6. 平均血淸 glucose量은 39.38(27.0∼57.3)㎎/100㎖로 낮았으며 年令別로 特徵的인 것은 發見할수 없었다. 7. 平均血淸 magnesium量은 2.72(0.20∼8.46)㎎/100㎖이었으며 老令牛에서 magnesium의 減少가 顯著하였다. 8. 平均血淸 calcium量은 8.69(6.34∼16.83)㎎/100㎖로 全般的으로 낮은 량이었으며 年令別 差異는 認定할수 없었다. 9. 平均血淸無機燐量은 5.88(3.50∼9.76)㎎/100㎖이었으며 年令別로 特徵的인 것은 發見할수 없었다. 10. 平均血淸Ca/P比는 1.48(0.68∼2.64)이었으며 年令別로 特徵的인 것은 發見할수 없었다. 11. 平均血淸 potassium量은 18.95(13.69∼24.24)㎎/100㎖이었으며 年令別 差異는 認定할수 없었다. 12. 平均血淸 sodium量은 315.90(282.86∼361.05)10.20)㎎/100㎖이었으며 年令別로 特徵的인 것은 發見할수 없었다. 13. 平均血淸 chloride量은 354.64(299.97∼361.05)㎎/100㎖이었으며 年令別 差異点은 發見할수 없었다. The present study was conducted to determine the blood chemical values of adult Holstein cows in Korea. Samples of blood were taken from 385 healthy cows in Chonnam province, and the results obtained are summarized as follows. 1. Mean serum totalprotein content was 7.35(5.10∼10.20)g/100㎖;it in creased with age. 2. Mean serum albumin content was 3.51(1.40∼4.40)g/100㎖;no differences were found between age groups in the serum albumin content. 3. Mean serum globulin content was 3.84(1.40∼7.20)g/100㎖; it increased with age. 4. Mean serum albumin/globulin ratio was 0.91(0.43∼2.64);it decreased with age. 5. Mean serum glucose concentration was 179.38(46.4∼336.0)g/100㎖;it increased up to 4 years of age and thereafter it decreased with age. 6. Mean serum glucose concentration was 39.38(27.0∼57.3)㎎/100㎖, which was low compared with other results. No differences were found in the glucose concentration between age groups. 7. Mean serum magnesium concentration was 2.72(0.20∼8.46)㎎/100㎖;it decreased significantly in older cows. 8. Mean serum calcium concentration was 8.69(6.34∼16.83)㎎/100㎖, which was low compared with other results. No differences were found in the calcium concentrati on between age groups. 9. Mean serum inorganic phosphate concentration was 5.88(3.50∼9.76)㎎/100㎖;no differences were found in the inorganic phosphate concentration between age groups. 10. Mean serum calcium/phosphate(Ca/P) ratio was 1.48(0.68∼2.64);no differences were found in the Ca/P ratio between age groups. 11. Mean serum potassium concentration was 18.95(13.69∼24.24)㎎/100㎖;no differences were found in the potassium concentration between age groups. 12. Mean serum sodium concentration was 315.90(282.86∼361.05)10.20)㎎/100㎖;no differences were found in the sodium concentration between age groups. 13. Mean serum chloride concentration was 354.64(299.97∼361.05)㎎/100㎖;no differences were found in the cholride concentration between age groups.

돌연변이성에 의한 수중유기 오염물질의 독성평가

유영식,채수권,권우택,김남천 서울보건대학 1996 서울보건대학 부설 한국보건과학연구소 논문집 Vol.3 No.1

한강수계 팔당댐 유입 하천수를 대상으로, 다환방향족 탄화수소를 선택적으로 유리하게 흡착하는 blue-rayon을 이용하는 현수법 및 column법으로 유기물을 흡착 추출하여, Salmonella typhimurium TA 98 및 TA 100에서의 돌연변이원성을 검색한 결과 다음과 같았다. 1. 흡착 유기물량은 8월이 11월에 비하여 약 1.7배 높았고, 현수법과 column법에서의 차는 없었다. 2. TA 100 균주에서 돌연변이원성은 나타나지 않았다. 3. TA 98균주에서의 돌연변이원성은, S-9mix 첨가의 계가 S-9mix비첨가의 계보다 높았고, 11월이 8월보다 높게 나타났다. Column법이 현수법에 비하여 돌연변이원성은 예민하게 검출되었다. In order to evaluate the toxic effect of organic pollutants in aquatic environments, organic substances extracted from blue-rayon adsorbates in Kyimgan River with the hanging and column methods were assayed by the Ames Salmonella mutagenicity test. Amounts of organic extracts adsorbed with the blue-rayon hanging method and the blue-rayon column method were similar. The mutagenicity toward TA 100 strain was not shown. The mutagenicity toward TA 98 with S-9mix was higher than that without S-9mix. For the quantitative concentration of polycyclic aromatic hydrocarbons in water, it was shown that the blue-rayon column method was more efficient than the blue-rayon hanging method.

축우 부루셀라병의 ELISA 진단법에 관한 연구

임윤규,이두식,박전홍,양기천,김승호,김공식,현관종,김우택,이영순 濟州大學校 農科大學 動物科學硏究所 1993 動物科學論叢 Vol.8 No.1

Enzyme-linked Immuno sorbent Assay (ELISA) for the serological diagnosis oi Bruceiia abortus was developed and compared with plate aggluhnation test Cell wall antigen was extracted from Brucella abortus 1119-3 by sonicabon and with a sodium deoxychlate solution Optimum protein concentra tion of coating antigen 0.4㎍/100㎕ protein on each microtiter plate well. Horse radish peroxidase(HRP) labled protein-G was used as a tracer of reacted antibodies ELISA confirmed the agreeable results of 40 rases out of 43 cases by plate aggulutination test ELISA diagnosed positive cases (10 out of 12) and negatiw cases (1 out of 12) with dubious sera by plate agglutination test From this results EL ISA could be used for the early diagnostic tools of Brucellosis in cattle.

관상동맥질환 및 뇌경색이 동반된 인슐린비의존형 당뇨병에 있어서 파라옥소나제 유전자다형성

김우식(Woo Shik Kim),김영설(Young Seol Kim),김상화(Sang Hwa Kim),팽정령(Jung Rhung Paeng),우정택(Jeong Tack Woo),김성운(Sung Woon Kim),최영길(Young Kil Choi),양인명(In Myung Yang) 대한내과학회 1998 대한내과학회지 Vol.55 No.5

N/A Objectives: Paraoxonase is a high-density-lipoprotein-associated enzyme capable of hydrolysing lipid peroxides. Thus it might protect lipoproteins from oxidation. It has two isoforms, which arise from a glutamine (A isoform) to arginine (B isoform) interchange at position 192. More recently, Ruiz et al. investigated the relationship between the paraoxonase genetic polymorphism and coronary heart disease in a case-control study of NIDDM in France. We investigated the correlation between the polymorphism of paraoxonase gene and cardiovascular disease in Korean diabetic patients. Methods: Of 106 patients with NIDDM, 50 had confirmed cardiovascular disease (coronary heart disease or ischemic stroke). The other 56 patients had no history of such disease and ECG abnormality. An additional control group of non-diabetic, healthy subjects (N=55) was selected. The polymorphism of paraoxonase gene was assessed by VCB-RFLP in their blood leukocytes DNA. Results: The healthy control revealed paraoxonase genotype frequencies of 18.1% AA, 36.4% AB and 45.5% BB. The NIDDM group revealed paraoxonase genotype frequencies of 11.3% AA, 39.6% AB, 49.1% BB. The genotype frequencies did not differ between healthy control with diabetic group. The genotype frequencies did not differ between diabetic group with coronary heart disease and diabetic control group(AA; 8.4% vs 12.5%, AR; 45.8% vs 37.5%, BB; 45.8% vs 50.0%). There was also no difference in genotype frequencies between diabetic group with ischemic stroke and diabetic control (AA; 11.5% vs 12.5%, AB; 38.5% vs 37.5%, BB; 50.0% vs 50.0%). In multiple logistic regression analysis with other risk factors, hypertension emerged as the most related factors for cardiovascular disease, but paraoxonase genotype was not associated with the presence of cardiovascular disease. Conclusion: In Korean diabetic patients, the polymorphism of paraoxonase gene might not be associated with the presence of coronary heart disease or ischemic stroke.

CONSTRUCTION, ASSEMBLY AND COMMISSIONING OF KSTAR MAIN STRUCTURES

Yang, Hyung-Lyeol,Bak, Joo-Shik,Kim, Byung-Chul,Choi, Chang-Ho,Kim, Woong-Chae,Her, Nam-Il,Hong, Kwon-Hee,Kim, Geung-Hong,Kim, Hak-Kun,Sa, Jeong-Woo,Kim, Hong-Tack,Kim, Kyung-Min,Kim, Sang-Tae Korean Nuclear Society 2008 Nuclear Engineering and Technology Vol.40 No.6

The KSTAR device succeeded in first plasma generation on $13^{th}$ June of 2008 through comprehensive system test and commissioning. Among various kinds of the key factors that decisively affected the project, success in the construction and assembly of the major tokamak structure was most important one. Every engineering aspects of each structure were finally confirmed in the integrated commissioning period, and there were no severe troubles and failures prevented the KSTAR device from operating during the commissioning and the first plasma experiments. As a result, all of the experiences and technologies achieved through the KSTAR construction process are expected to be important fundamentals for future construction projects of superconducting fusion devices. This paper summarizes key engineering features of the major structures and of the machine assembly.