聯結納稅制度의 國家間 比較硏究

李愚澤,金讚燮 한양대학교 서해경제연구소 1999 서해경제연구 Vol.4 No.-

폐철을 이용한 크롬(VI)의 환원적 제거

임우택,정용식,유건상,김종현,김영훈 7개 국립대학교 환경연구논문집 공동발행 위원회 2005 공업기술연구 Vol.5 No.-

Cr(VI) is a known toxic heavy metal which is found frequently in many industrial sites. Contaminates soil and ground water with Cr(VI) is a big enviromental concern due to the high toxicity. Permeable Reactive Barrier(PRB)is an innovative remedial technology intensively studied and developed recenty. The most popular PRB material is zero-valent iron which is environmentally favorable and cheap. Scrapped steels and precleaned scrapped steels were tested in this study for Cr(VI). Scrapped steels were precleaned wuth detergent, acetone, hexane.The precleaned scrapped steel showed relatively high reactivity for Cr(VI). The results indicate that the scrapped steel could be used as PRB material after proper pretreatments.

A Study on the Interdisciplinary Approach to Tax Problems

李愚澤 漢陽大學校 産業經營硏究所 1992 産業經營硏究 Vol.4 No.-

租稅行政의 適正節次(Due Process)에 관한 연구 : For Protection of Taxpayers' Rights 納稅者의 權益保護을 위하여

李愚澤 漢陽大學校 産業經營硏究所 1994 産業經營硏究 Vol.6 No.-

아파트 團地內 騷音特性과 住民意識

李澤九,金甲洙,成相雨 嶺南大學校 環境問題硏究所 1994 環境硏究 Vol.13 No.2

幹線 道路邊 住宅團地 內에 道路交通騷音의 水平傳播 特性은 道路邊 1列棟과 2列棟 사이에 9dB(A) 程度의 騷音 減衰가 있으며 鉛直傳播 特性은 一般的으로 1層에 1dB(A) 程度의 騷音增加 現象이 있으므로 아파트 團地 建設時 騷音이 問題化될 所持가 있는 團地에 있어서는 아파트 棟의 配置를 考慮해야 한다. 그리고 騷音과 住民意識 關係에서 心理的, 精神的, 身體的 影響은 各 要因別로 10∼40% 程度를 나타내고 있으며, 騷音의 被害程度는 電話걸 때, TV 聽取時, 讀書, 思索, 睡眠 등의 影響은 住民의 20∼50% 程度가 被害意識을 나타내고 있으며 騷音의 影響은 定住意識이나 住居年數에도 큰 關係가 있음을 알 수가 있었다. 따라서 아파트 團地 內의 騷音問題는 深刻함을 알 수 있고 그의 對策 마련이 時急한 實情이다. This stucy is to grasp the noise condition of Apartment development, to analyze the characteristics about horizontal and vertical propagation of noise, and to grip dweller's sense about noise. The major results of this paper may be summarized as follows; 1) Reduction in 7dB at roadside and first row, 16dB at second row and 20dB at third row was appeared in the noise's horizontal propagation in Apartment development. 2) The propagation's characteristics of noise by the number of floors in same Apartment dong was increased about 1dB(A) by each floor. 3) In the relation between noise and dweller's conscious, an intention of settlement is a factor of noise also, the degree of noise is apparently appeared by the number of floors and the influence of dwelling history is appeared very much. 4) Constructing Apartment development, the arrangement of Apartment dong obtaining sound insulation is considered in Apartment development which is going into question of noise.

韓國人 胃癌患者에서 HL-A抗原 分布에 關한 硏究

朴愚澤,金鎭福 서울의대 1974 서울의대잡지 Vol.15 No.4

기업합병시 영업권회계에 관한 연구

이우택,이남수 漢陽大學校 産業經營硏究所 1998 産業經營硏究 Vol.10 No.-

PEMFC의 효율적 시뮬레이션을 위한 Matlab/Simulink와 PSIM기반의 Co-Simulation

임채홍,이우택 국립7개대학공동논문집간행위원회 2005 공업기술연구 Vol.5 No.-

Fuel Cell system is expected to use widely in the near future. Proton Exchange Membrane Fuel Cell(PEMFC) system is broadly investigated due to low operating temperature and fast start up characteristics. To shorten the time and effort putting into development, the simulation procedure is needed, For Simulating Fuel Cell system, specified tools are necessary because Fuel Cell system consists of control system, power generation system and power conversion system. Matlab/Simulink is useful to simulate Fuel Cell's control algorithm and V-I characteristics. PSIM is useful to simulate Fuel Cell system's power conversions. This paper, focuses on Co-Simulation of PEMFC system using Matlab/Sumulink and PSIM. Co-Simulation is an effective method to simulate PEMFC's complicated characteristics.

Neutral Protease를 이용한 닭 간 단백질 가수분해물의 산업적 이용에 관한 연구

박숙영,김우정,이근택 강릉대학교동해안지역연구소 1990 東海岸硏究 Vol.1 No.2

영양학적으로 매우 우수한 부존자원이라 할 수 있는 닭 간의 단백질을 protease인 Neutrase를 이용하여 효소적으로 가수분해를 하였다. 가수분해시의 최적조건을 파악하기 위하여 온도, 시간, pH 및 효소 첨가량 (E/S ratio) 의 조건을 검토하고 수분과 기름의 흡수성, 유화활성, 점도등의 기능성을 조사하였다. 아울러 다시료 비교법에 의한 관능검사를 시행하였다. Neutrase를 이용하여 닭 간 단백질을 가수분해 시켰을 때 온도 50℃, pH 6.0에서 최대활성을 나타내었고, 효소의 첨가량이 증가할 수록 가수분해도는 증가하였다. 수분과 기름의 흡수성과 유화활성도는 반응시간이 지날수록 감소하였고 점도는 증가하였다. 동결건조된 닭 간 단백질 가수분해물의 냄새와 색깔에 대한 관능평가에서는 썩은내와 역겨운 냄새만이 1% 범위에서 유의성이 있었다. 또한 효소적 가수분해는 닭 간 단백질 가수분해물의 색을 붉은색이 감소하는 대신 좀더 밝고, 녹색을 띠도록 하였다. Chicken liver is a potential valuable source of nutrients. Chicken liver protein was enzymatically hydrolyzed using a kind of protease, Neutrase. In order to determine the optimum conditions of hydrolysis process, the parameters of reaction temperature, time, pH, and enzyme to substrate ratio (E/S ratio) were investigated. To evaluate the functional properties of hydrolysate, water and oil absorption capacity, emulsifying capacity and viscosity were measured. Sensory tests by multiple comparison test were also carried out. The optimum condition for the hydrolysis were 50℃ and pH 6.0 and degree of hydrolysis incrased with increasing E/S ratio. Water and oil absorption and emulsifying capacity were decreased and viscosity was increased during hydrolysis. The sensory evaluation of odor and color of freeze-dried chicken liver protein hydrolysates showed a significant increase in 'spoiled' and 'nauseous' (p < 0.01). It was also found that the proteolytic hydrolysis caused the color of chicken liver protein hydrolysates to be brighter, less redish and more greenish.

Radiocobalt의 體內 汚染에 對한 除染效果

정인용,정현우,김태환,진수일,윤택구 대한방사선 방어학회 1988 방사선방어학회지 Vol.13 No.1

국내 原子力 産業의 施設增大로 放射線核種汚染의 가능성이 날로 증가되고 있음에도 불구하고 종사자 및 인근주민에 대한 診療對策에 관한 연구가 전무한 실정에 있어 이에 대한 기초자려마련의 일환인 應急處置方案을 수립코자 58CoCl2 1μCi를 마우스 (NIH-(GP))의 腹腔內에 投與한 후 CoNa3 DTPA 8.4mg/0.2ml saline, CoNa3 DTPA 8.4mg/0.2ml saline, saline 5ml등을 각각 投與하였으며, cobalt의 全身殘存量, 體內分布 및 尿內 含有된 量을 測定하기 위해 投與 後 4, 8, 12, 48시간, 그리고 7일에 MCA의 Ge-detector로 放射能을 計測하였고, 또한 각 實質臟器內 殘存된 cobalt의 放射能을 測定하기 위하여 각 group당 6마리의 마우스를 屠殺解體하여 測定하였던바 다음과 같은 결론을 얻었다. CoNa3 DTPA 處置群에서는 汚染된 放射性 cobalt의 全身殘存率의 減少 및 排泄率 增加에 유효한 效果가 있었으며, system contamination에 대한 방어효과는 CoNa3 DTPA, CoNa3 DTPA 그리고 saline 順으로 유효하였다. 결론적으로 본 실험결과로 볼 때 放射性 cobalt의 體內汚染에 대한 緊扱措置는 CoNa3 DTPA와 다량의 물을 동시에 投與함으로써 體內汚染된 放射性 cobalt의 排泄을 促進시킬 것으로 사료된다. In case of the acute intake of radionuclide, an early medical treatment may be necessary, but the little is established the procedures to decontaminate the victims of internal contamination in Korea. The purpose of the present investigation is to study chemical agents to remove radiocobalt from the victims and to provide a more reliable procedure for the treatment. The removals of radiocobalt from the NIH-(GP)mice injected intraperitoneally with lμCi of 58Co as CoCl2 were investigated with doses of either CaNa3 DTPA 8.4mg/0.2ml saline, CoNa3 DTPA 8.4mg/0.2ml saline, or saline 5ml. The radioactivity was determined by MCA and Ge-detector on 4, 8, 12, 48 hours and 7 days for the whole body, organ distribution and urine excretion. Six mice per each group were sacrificed for the measurement of cobalt retention in the parenchymal tissue. The cobalt trisodium chelate had a pronounced effect on reducing the whole body retention and increasing the excretion rate. Regarding to the systemic protective effects, CoNa3 DTPA, CaNa3 DTPA and saline were effected significantly in order. In conclusion, the extrapolations from these results to human were suggested that the rapid administration of cobalt trisodium chelate and an amount of saline to the contaminated person after internal contamination of radiocobalt were markedly increasing the decontamination effects.