농업회계관리의 전산시스템 구축에 관한 연구

이동호,양병우,이승형 韓國農業政策學會 1996 농업경영정책연구 Vol.23 No.2

Lanthanoid계 Perovskite형 촉매를 이용한 고정원배가스에서 Nox와 SOx의 동시제거

이병용,이춘우,정석진 경희대학교 자연과학종합연구원 1996 자연과학논문집 Vol.2 No.-

ABO_(3)형태의 Perovskite계열 복합 산화물 촉매를 사용하여 SCR공정(Selective Catalytic Reduction Process)에서 프로필렌을 환원제로 사용하여 HOx 및 SOx제거 활성을 조사하여 보았다. LaCoO_(3)촉매는 NO제거 활성이 A Site에 Ce이 40%치환되었을 때, 최고의 활성을 나타내었으며 B Site에는 60%의 Fe을 부분치환하였을 경우 저온에서의 활성향상이 있었다. 또한 전체적인 NOx제거활성 결과와 산소결함(Oxygen Vacancy)측정 결과가 선형적으로 비례함을 얻을 수 있었고, 이로 부터 Perovskite형 촉매의 반응원리를 산소결함량과 연관하여 설명할 수 있었다. In this article, ABO_(3) type Lanthanoid Perovskite catalysts have been investigated to remove NOx and SOx simultaneously in S.C.R Process(Selective Catalytic Reduction Process) using propylene as reducing agent. When the catalysts were substituted 40% of A site by Ce, it was up to the maximum activity for LaCoO_(3) catalysts. In case that B site of the catalysts were partially substituted 60% by Fe, there were improvement of the low temperature activity. Activity of these catalysts is related to the presence of Oxygen Vacancy in the catalysts. Reaction mechanism of perovskite type catalysts in S.C.R Process would be examined based on the upper results.

외국인 투자유치 마케팅전략에 관한 연구

李愚採,金炳先 강남대학교 사회과학연구소 2000 사회과학논총 Vol.9 No.-

In the late 1990s, Korean firms, stimulated by Asian financial crisis that took place in 1997, undertook internal restructuring that caused a decline of direct investment in Europe during the period.Korean firms that have finished internal restructuring are expected to resume their expansion strategy in the early 2000s. The objectives of the study are: 1) to develop a framework for identifying the most promising Korean firms for the A Country inward foreign direct investment; 2) to select Korean manufacturing and service firms that have strong potential to invest in the A Country within three to five years of time frame; 3) to provide marketing ideas to approach these Korean firms effectively and to speed up the actual investment decisions

組織培養에 의한 마늘의 Virus 無毒株 養成 및 增殖方法에 관한 硏究

李庚熙,金炳友,金鐘天,金龍基 건국대학교 1976 學術誌 Vol.20 No.2

In order to obtain virus-free garlic plants the experiments attempted to investigate beneficialy excisable segments for tissue culture, virus-free segments, and the method of propagation by means of tissue culture on the modified White's medium. Results of these studies are summarized as follows. 1.It is suggested that the growing point of bulbil was the best suitable for tissue culture as beneficialy excisable segment. 2.The viability of garlic plants by heat treatment was also good with 4 weeks treatment at 38 ± 1℃. 3.When bulb and bulbil were transplanted from NAA-free medium to the medium added with NAA, the medium added with 0.1-1.0 mg/l of NAA was most excellent. 4.It was found that low-temperature treatment for 4 weeks at 0-4℃ was essential for the continuous growth by dormancy breaking of the bulb formation plants while grown invitro.

한국진출 이동통신기기 다국적기업의 글로벌 R&D 전략과 조직유형에 관한 연구

李愚採,金炳先 강남대학교 사회과학연구소 2000 사회과학논총 Vol.10 No.-

The level of the multinational's R&D activities in Korea is relatively low until early 1990s, since mid 1990s, the level of the multinational's R&D activities have become higher and even some multinationals have tried to make the Asian Innovation Center in Korea. The purpose of this paper is to present the direction of global R&D strategy and organization type for korea companies through case analysis of global mobile telecommunications equipment companies to participation in korea.

한 대학 신입생의 우울수준과 관련변인에 관한 연구

이명학,남해성,손석준,이정애,김병우 대한보건협회 1994 대한보건연구 Vol.20 No.2

1994년도 한 대학 1년생을 대상으로 8개항목의 생활만족지수(LSI-W) 그리고 20개항목의 우울지수(CES-D) 및 관련변인들을 조사하여 각각의 점수와 우울증의 유병률을 계산하고 서로간의 관련성을 조사하여 다음과 같은 결과를 얻었다. 1. 생활만족지수의 평균점수는 9.98이었고 비흡연군, 비음주군, 운동을 하는 군에서 평균점수가 유의하게 높았다(p<0.01). 2. 우울지수의 평균점수는 17.2였고 여학생에서 남학생보다 유의하게 높았고, 우울증의 유병률은 19.8%이었고 여학생에서 남학생보다 유의하게 높았다(p<0.01). 3. 우울증세 고위험군과 저위험군에 있어서 건강에 대한 본인의 생각과 본인이 인지하는 체중에서 차이가 있었으며, 생활만족지수, 가족수, 체중, 신장에서 유의한 차이를 보였다(p<0.05). 4. 우울지수와 생활만족지수, 연령, 종교활동기간, 신장, 체중등과는 음의 상관을 나타내고(p<0.01), 가족수, 수면시간, 경제수준과는 양의 상관을 보였다(p<0.01). 5. CES-D에 영향을 미치는 변수를 알아보기 위한 단계적 로지스틱 회귀분석에서 생활만족도, 성별, 건강에 대한 본인의 생각, 본인이 인지하는 체중, 흡연, 음주가 CES-D에 의한 우울증 발현에 있어서의 유의한 요인으로 나타났다(p<0.05). The questionnaire survey using the Center for Epidemiological Studies-Depression Scale(CES-D) and 8-items Life Satisfaction Index Well-being(LSI-W) and other variables was conducted to determine the prevalence of depression and to identify the correlation among CES-D and related factors. Study population was the whole freshman group newly enrolled in a university. The results were as follows; 1. Mean score of LSI-W was 9.98 and that score was higher in non-smokers, non-drinkers and exercise group (p<0.01). 2. Mean score of CES-D was 17.2 and the prevalence of depression was 19.8%. And those were significantly higher in female than in male(p<0.01). 3. Perceived health status, perceived weight, LSI-W, family size, weight and height were significant variables between high and low risk group of depression(p<0.05). 4. CES-D score was negatively correlated with LSI-W, age, duration of religious life, height, weight and po-sitively correlated with family size, sleeping time and economic status(p<0.01). 5. In the regression analysis significant predictors of the depression were sex, preceived health status, weight, smoking and drinking(p<0.05).

水稻少肥栽培時의 增收對策 및 必要水量決定에 關한 硏究 및 菜蔬增收를 爲한 效果的 灌漑方法 : C. 施設栽培에서 菜蔬增收를 위한 效果的인 灌水方法에 關한 硏究 Study on the Watering Method for Vegetable Crops in Controlled Cultivation

李庚熙,金炳友 건국대학교 1982 學術誌 Vol.26 No.2

This study was carried out to find out the effect of finest soil moisture levels on the growth of red pepper and cucumber, the proper method of watering under the plastic film mulching cultivation, and the method of watering considered the amount of evaporation. This experiment was carried out at the clay soil in the experimental farm of Kon-Kuk university from 11th Feb. to 30th July 1979. The results obtained in this study were as follows; 1. The watering when the soil moisture levels were PF 1.8-2.1 was most effective for the growth of red pepper, and PF 1.5-1.8 for the cucumber. 2. Watering 210 mm with 3 days interval was the 7est method for the red pepper during 60 days long early harvesting period, and cucumber required 270 mm watering wroth 1.1 days interval. 3. There was no difference between the red pepper yield produced from PF 1.8 to PF 2.4 soil moisture levels under the condition of plastic film mulching culture, and the soil moisture levels of PF 1.8-2.1 were effective to increase the cucumber yield. 4. The requirement of the amount of watering in the plastic film mulching cultivation was only 507ercent compared with that of non-mulching culture, and the times of watering was reduced about half. 5. Plastic film mulching treatment was more effective to increase the yield of red pepper and cucumber in spite of same soil moisture levels compared with non-mulching cultivation. 6. The amount of watering was required about one and half times as much as compared with the amount of evaporation during the experimental period, and the increasing of watering times was effective for the higher field in red pepped and cucumber. 7. At the Held of high water table, the cultivation mulched only with the plastic film promoted the growth of red pepper and cucumber compared with the treatment of watering without plastic film mulching.

종이상자포장기의 개발에 관한 연구

권경우,권병철,류봉조,명태식,박찬호,이광원 한밭대학교 산업과학기술연구소 1994 논문집 Vol.2 No.-

The paper describes the development of a new automatic wrapping machine using paper films as it has not been used so far. The most of the automatic wrapping machine have used the vinyl film causing environmental pollution, the paper films, however, have a weak point in the aspect of high temperature adhesion. Therefore, the mechanism of the existing wrapping machine should be altered to prevent it from curling effect through the technical know-how. A new method and technology reducing the curling effect in the automnatic wrapping machine are demonstrated by using developed blower. Thus it is exqection and will decrease environmental pollution.

몇가지 멀칭資料가 마늘의 生育에 미치는 影響

金炳友,李庚熙,李長洙 건국대학교 1978 學術誌 Vol.22 No.1

In the cultivation of the garlic, the limitted factor was known as the soil temperature in the spring, injury Hylemyia antiqua and soil moisture. This study was carried out to find out the effect of various mulching treatment on the growth of gralic, and the influence of various mulching such as transparent plastic film, straw and black plastic films on the soil temperature, soil moisture, appearance of Hylemyia antiqua, and development of clove and yield. The mulching treatment was applied on 30th March 1977, and Susan local variety was exermined as sample. The result were summerized as follows, 1. In the early period of growth, the soil temperature was raised about 5.2℃ by double mulching (straw under, transparent vinyl top),4.6℃ by transparent vinyl, 2.7℃ by black vinyl, 1.5℃ by straw compare with control. The latter period of growth, there was no different on the soil temperature between mulching treatment. 2. Moisture content in the soil was high by the mulching treatments at dry season. In mulching, double mulching (straws under, transparent vinyl top) treatment was effective, and the order of subsequently was straw, black vinyl, double mulching (trans-parent vinyl under, straw top), transparent vinyl, control. After the rain, the straw mulching was highest moisture content and the order of subsquently, control, double mulching (straw under, transparent vinyl top), double mulching (transparent vinyl under, straw top), black vinyl, transparent vinyl. 3. Appearance of weeds was significantly decreased double mulching (straw under, trans-parent vinyl top, black vinyl, double mulching (transparent vinyl under, straw top), and straw, but transparent vinyl was signinificantly increased the weed appearance. 4. The root dry weight was increased more by mulching treatment than control, and among the treatments, double mulching (straw under, transparent vinyl top) treatment was heaviest in root dry weight. 5. For the protection of Hylemyia antiqua, the mulching treatment was effective. But straw mulching was not. The fresh weight, the diameter, and the clove weight were increased by mulching treatment, auld among the treatment, double mulching (straw under, transparent vinyl top) treatment was most effective. In the early growth stake, the growth under the transparent vinyl mulching was more effective than double mulching (straw under transparent vinyl top) treatment, but in later growth stage, double mulching (straw under, transparent vinyl top) treatment promoted the growth more than transparent vinyl mulching. 7. The bulb weight was increased by mulching treatment more than control. Among the treatment, double mulching (straw under, transparent vinyl top) treatment was most effective.

Pyrantel Pamoate (Combantrin)에 依한 蛔蟲 및 鉤蟲感染의 集團治療

徐丙卨,朴定圭,趙昇烈,姜信榮,魚光本,康世喆,李源宰,李正雨,黃邱一 中央醫學社 1972 中央醫學 Vol.23 No.6

The mass treatment trial of pyrantel pamoate on Ascaris lumbricoides and Ancylostoma duodenale infections was carried out to school-children and inhabitants in rural areas in the central part of Korea. Pyrantel pamoate ("Combantrin") tablet (123 mg base) was administered as a single dose of 10. 0 mg per kg. body weight to a total of 4,198 Ascaris infected cases selected out of 4,436 (41. 6%) positives, who were screened from the total 10,660 collected stool specimens. Of these, only 3,169. cases were followed up after treatment to provide an analysis in this study. Incidentally 161 cases with concomittently infected hookworm were also subjected to assess the efficacy of pyrantel pamoate against A. duodenale. The egg negative conversion rate on A. lumbricoides was 95.3%, and on A. duodenale, 97.5% four weeks following treatment. In failed cases, the egg reduction rates on both of the infections were 97.6% and 97.3% respectively. No side effects and no problem in drug administration were demonstrated. It is concluded that this study confirms the high efficacy of pyrantel pamoate in the treatment of Ascaris lumbricoides and Ancylostoma duodenale infections and also proves the acceptability and safety of this drug in the mass treatment of ascariasis in a population with relatively high worm burden.