유용성 도료와 수용성 도료의 유해성 비교에 관한 연구 : 자동차 보수용 도료를 중심으로

권은혜,김광식,오정룡,최정근,정윤석,이유진,김은아,송세욱,정호근 한국산업위생학회 2001 한국산업보건학회지 Vol.11 No.1

The purpose of this study is to substitute water-based painting materials for the current solvent-based ones used in motor-repairing process to minimize the exposure of organic solvents to the painters. This study assessed the exposure of organic solvents to the painters using water-based and solvent-based painting materials and compared compositions, painting processes and the health hazards of the application of these alternative painting materials. The results of this study are as follows. 1. solvent-based painting materials used in motor-repairing process consist of various organic solvents, which consist primarily of toluene, xylene, ethyl benzene, ethyl methyl bezene, trimethyl bezene, ethyl acetate, butyl acetate, methyl isobutyl ketone, 2-ethoxy ethanol, 2-ethoxy ethyl acetate and toluene-2.4-diisocianate and the others. These organic solvents are know as health-hazardous substances. But water-based painting materials are high-solid, low-solvent ones and consist of such two organic solvents as 2-butoxy ethanol and 2-heptanone and the others. 2. The painters using solvent-based painting materials in motor-repairing process are exposed to various organic acetate, methyl isobutyl ketone, trimethyl benzene, 2-ethoxy ethanol, and 2-ethoxy ethyl acetate. But the painters using solvent-based ones are only exposed to 2-butoxy ethanol and 2-heptanone. 3. By using water-based painting materials in stead of solvent-based painting materials containing health-hazardous organic solvents, the exposure of such organic solvents in the painter's breathing zone can be largely prevented. 4. This study recommends water-based painting materials as substitutes for the current solvent-based ones used in motor-repairing process to minimize the exposure of organic solvents to the painters.

수입각증후군에 의한 급성 복증 1례

정은욱,지삼룡,이영태,박지훈,김동기,제인수,채두근,박성재,박은택,이연재,이상혁,설상영,정정명 白中央醫療院 2005 仁濟醫學 Vol.26 No.1

Afferent loop syndrome is an uncommon complication of a gastrectomy and Billroth Ⅱ reconstruction. It may cause symtoms at any time from the first postoperative day to many years after the gastrectomy. Afferent loop syndrome is characterized by abdominal pain, vomiting and elevation of serum amylase. Thus, it is difficult to differentiate afferent loop syndrome from other cause of acute pancreatitis. However, the history of gastrectomy can be an important clue for diagnosing afferent loop syndrome. We experienced one case of chronic afferent loop syndrome with acute pancreatitis. After appropriate management, the abdominal pain disappeared and serum amylase level decreased. We report this case with a review of relevant literatures.

관입시험법에 의한 콘크리트 압축강도 추정식의 제안에 관한 연구

신정식,이성용,권영웅 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.1(구조계)

This study concerns the new strength equation of concrete by penetration test. There are not only few estimate strength equations of concrete, but also many problems to apply them because of time, cost, easiness, structural damage, reliability and so on. For this study, there performed a series of test and proposed a equation as follows; fc = 1670 - 106d + 1.81d² here, fc : estimated compressive strength of concrete by kgf/cm² d : Probe exposed of concrete by mm.

폐질환환자의 동맥혈가스분석

현정애,김재룡,전동석 啓明大學校 醫科大學 1986 계명의대학술지 Vol.5 No.2

Arterial blood gas anlysis has been established as an important aid to diagnosis, therapy, and prognosis in pulmonary diseases. Authors analyzed the results of arterial blood gas analysis of 136 pulmonary disease patients requiring oxygen therapy at the emergency room. In patients with chronic obstructive pulmonary disease, the findings are consistent with respiratory acidosis, PCO₂being abnormally high in 53.3% of the cases and PO₂below 80mmHg in 88.9%. In patients with bronchial asthma, the PO₂levels were higher than ones with chronic obstructive pulmonary disease but the results of remaining parameters were essentially similar. The patients of lung cancer were significantly iincreased in pH, comparing with ones of other pulmonary diseases (p<0.005), and significantly fell in PCO₂comparing with ones of bronchial asthma (p<0.01).

북한민속과 문화정책, 문화유산 실태

장정룡 江陵大學校統一問題硏究所 1997 統一問題硏究 Vol.13 No.-

Heart-Rate와 Velocity에 의한 Vo₂max 推定硏究

蔡政龍,朴準基 군산대학교 1987 論文集 Vol.14 No.-

The purpose of this study was to evaluate the predicatablity of Vo2 max from a 800m Running performance of high school girls, and investigate the relationship between Vo2 max, as predicted by 800m Running test, and velocity per minute of 800m -Run. The subjects of this study consisted of ten trained girls (16yrs) and twenty untrained girls (16yrs : 10, 17yrs : 10), Heart rate was monitored by telemeter system 108, and running time measured. The results of this study were as follows ; 1.Vo2 max values for trained 16 years girls was 3.10±0.41ℓ /min, and Vo2 max values expressed in ㎖/kg/min, was 79.17 ± 20.28㎖/kg/min. 2.Vo2 max values for untrained 16years girls was 2.55 ±0.14ℓ /min, and Vo2 max values expressed in ㎖/kg/min was 63.64 ± 6.96㎖/kg/min. 3.Vo2 max values for untrained 17 years girls was 2.44±0.13ℓ /min, and Vo2 max values expressed in ㎖/kg/min was 56.41 ± 4.98㎖/kg/min. 4.The correlation coefficient between velocity per minute of 800m - Run and Vo2 max expressed in ℓ/min was r=0.94(trained 16yrs), r=0.88(untrained 16 yrs), r=0.76(untrained 17 yrs). 5.The regression formulas for predicting maximal oxygen uptake (y) based on the velocity Per minute of 800m -Run (x) were y=0.01376x-0.83713(trained 16 yrs), y=0.01057x-0.13451 (untrained 16 yrs), y=0.0792x+0.56730 (untrained 17 yrs).

1,3-Disubstituted Pyrido [2,3-d] Pyrimidinedione

류정욱,이기창,강삼룡 明知大學校 産業技術硏究所 1984 産業技術硏究所論文集 Vol.3 No.-

1,3-Disubstituted pyrido [2, 3-d] pyrimidine-2, 4-diones derivatives were synthesized by the following method A and B. Method A: 1-Substituted pyrido [2, 3,-d] pyrimidine-2, 4-diones were prepared by the reaction of 2-[N-substituted amino] nicotinic acid with urea at high temperature. On the other hand method B:1-Substituted pyrido [2, 3-d] pyrimidine-2 4-dione prepared by the reaction of 2-[N-substituted amino] nicotinamide with ethyl carbonate at low temperature. It was largely affected by catalyst and temperature that the synthesis of 2-[N-substituted amino] nicotinic acid as starting material, and amide of 2-[N-substituted amino] nicotinic and derivative was synthesized by the typical nucleophilic substitution of acyl halide. Considering the reaction time and temperature, however, it is clear that the method B is more efficient than the method A. The former requires only 2-3 hours of reaction time at 20-40℃, while the latter requires 7 hours at 180-200℃. Yields for two methods obtained were 60% all. Yields of 1, 3-disubstituted pyrido [2, 3-d] pyrimidine-2, 4-dione as object was obtained about 60% by the reaction of intermediate material with alkylated in the DMF solvent. It has been affirmed that the mechanism of reactions involved in synthesis was of nucleophilic substitution. The molecular structure, and molecular weight of 1, 3-disubstituted pyrido [2, 3-d] pyrimidine-2, 4-diones were confirmed by the analysis of physicochemical instrumentation such as IR, NMR, and Ms spectra, and the physical properties were examined.

브랜드아파트의 차별화 계획요소에 대한 거주자의 선호도 조사연구

배정익,손재룡,이경회 대한건축학회 2003 대한건축학회논문집 Vol.19 No.9

Since the middle of the 1990's, the domestic apartment market is not focused on the differential architectural design factors or the preference of consumer's needs but on which company builds the apartment housings. This structure is needed for a new change by the reasons of the decontrolling price of domestic apartment housings and the IMF (International Monetary Fund), which caused the stagnation of housing. In this processing, brand strategy is added and simultaneously differentiation of design factors are added as a part of brand strategies. This study investigated residents’ preferences focusing on architectural design factors used in the marketing strategy of brand apartment housings. And based on such results of survey the further directions of architectural design factors are suggested in the 4th. In conclusion, it is found that the brand apartment housing residents evaluate standards on apartment housing differently than standards in the past. That is, moving away from the basis of orientation and the floor to focusing of living space design can be interpreted. In order to develop the differentiation of architectural design factors we have to subdivide different design factors into detail areas and then studies of design factors should be continuously conducted.

山林休養 適地評價를 위한 GIS 技法에 관한 硏究 : 江原大學校 山林科學大學 演習林을 대상으로

崔朝龍,崔晶棋,禹鍾春 한국산림경제학회 2003 산림경제연구 Vol.11 No.1

본 연구에서는 GIS 기법을 이용하여 강원대학교 연습림을 대상으로 산림휴양기능을 평가해 보았다. 연습림 전체 면적 중 31개 지역의 400ha정도가 산림휴양기능을 발휘할 수 있는 능력이 있는 지역으로 나타났다. 이 지역들을 임반별로 살펴보면 총 7개 임반으로서 3, 4, 5, 6, 7, 14, 21 임반이 이에 해당되는 것으로 나타났다. 현재 연습림의 산림경영목표에 따라 자연학습·휴양림지역으로 관리되고 있는 지역은 7, 8, 9 임반이다. 따라서 본 연구결과에 의하면 7 임반이 모든 여건을 고려할 때 산림휴양기능을 발휘할 수 있는 가장 적절한 임반이라고 사료된다. This study was tried to evaluate the suitable area for recreational forests in the Research Forests of Kangwon National University using GIS technique. The results showed that around 400ha in 31 areas of the Forest was suitable for the recreational function. In terms of compartment, these areas were included in the compartment 3, 4, 5, 6, 7, 14 and 21. Compartment 7, 8, and 9 are designed and managed as natural learning and recreational forests. Considering these, we think that the 7th compartment is the most suitable region for forest recreational function.

운동부하 방법의 차이가 혈당 및 혈중 젖산 농도의 변화에 미치는 영향

채정룡,이갑철,김형준,박정호 군산대학교 체육과학연구소 2000 體育科學硏究所 論文集 Vol.2 No.-

Effect of sub-maximal exercise load differences onthe change of blood glucose and lactate contents were investigated. The results were as follows: 1. Blood glucose is quite relative under exercise load intensity (THR 70%, 90%) right after exercise and at the stage of relaxation. 2. Blood lactate contents were the most immediately after the exercise. 3. Under exercise load (THR 90%), Blood glucose and lactate are less related with each other before and after the exercise; on the other hand, in a restoring stage the result was reverse. Therefore; the higher the exercise intensity is, the more blood lactate is comcentrated immediately after exercise and it talkes a lot longer to go back to the stage of before exercise: the research revealed.