알칼리 處理가 폴리에스테르 纖維의 構造에 미치는 影響

趙龍錫,金完守 대구효성가톨릭대학교 1987 연구논문집 Vol.34 No.1

Polyethylene terephthalate(PET) fibers which were drawn at the temperature of 80℃ with draw ratios of 1.5, 2.0, 2.5 and 3.0 at the rate of 1%/sec were treated with 30% aquous solution of NaOH at 40℃ for 1hr. Experimental studies on the surface photograph, weight loss, birefringence, and thermal shrinkage of PET fibers have carried out. Results form these studies are as follows: 1. In the treatment of alkali, pit shapes of fibers were altered from a round shape to a longish oval with increasing draw ratio. 2. There was a linear relationship between the weight loss and specific surface area of PET fiber. 3. The birefringence of treated PET fibers generally became hower than that of untreated. 4. The thermal shrinkage of treated PET fibers was less than that of untreated.

共同住宅 中央 集中 煖房設備의 信賴度에 관한 硏究

김동완,정순성,조용수 東亞大學校 建設技術硏究所 1997 硏究論文集 Vol.21 No.1

The purpose of this study is to obtain reliability of heating equipment’s in apartment building. Field data concerning the failure of heating equipment’s recorded at the apartments constructed 14 years ago are used. As a result of the field data analysis, failure time distribution and cumulative hazard function of boiler, heat exchanger, steam header and various pumps are expressed in Weibull probability graph. The scale and shape parameters, MTBF of each equipment’s are presented by regression line of Weibull probability graph. Presented parameter will be come into use a reference data to evaluate the reliability, to plan the maintenance scheme, and to evaluate economic renewal of equipment’s.

코자 정(로자탄 칼륨 50mg)에 대한 로자르탄 정의 생물학적 동등성

김용원,박완수,김성수,서지형,조성희,이헌우,류재환,이경태 한국약제학회 2006 Journal of Pharmaceutical Investigation Vol.36 No.2

6개 원소로 이루어진 짝이중결합화합물과 R_2AsCI와의 반응

주완철,이용암,유응철 성균관대학교 기초과학연구소 1986 論文集 Vol.37 No.2

From the reactions of orthohydroxy-6-membered conjugated system, benzil-mono-orthohydroxyanil, with Me_2AsCl and chloro [Toluene-(2, 3)-dithiolato(2)] arsenic (Ⅲ), reaction products was isolated. From the IR and NMR-spectroscopic analysis for these reaction products, it is confirmed that reaction products are charge-transfer complexes of As. From these results, we found that the chemical behaviour of trivalent As is not analogous to trivalent P.

중국에서 이식한 종어 (Leiocassis longirostris Gunther)의 외부 형태 및 초기생활사

이완옥,김경환,김대희,조용철,김응오 한국어류학회 2004 韓國魚類學會誌 Vol.16 No.1

한국에서 절멸된 것으로 알려진 종어 (Leiocassis longifostris)를 국내에 복원하고, 양식대상종으로 개발하기 위하여 중국에서 도입하여 외부형태를 비교하고, 난발생 과정 및 부화자어의 형태를 연구하였다. 도입된 표본의 계수·계측형질을 국내와 중국에 알려진 문헌과 비교한 결과 큰 차이를 보이지 않았다. 중국에서 도입한 암수 한쌍의 성어에서 채란하였고, 습식법으로 수정하였다. 수정란의 크기는 2.01∼2.10 mm(n=10)이었으며, 알의 형태는 원반형이고, 난막은 무색투명하였으며, 강한 접착력이 있었다. 난황은 담황색이고 유구는 없었다. 수정 1시간 후에 배반이 완성되었고, 1시간 30분 후에 난할이 시작되었다. 수정란의 수온을 21.5∼23.0℃로 유지할 때 30∼50분 간격으로 이후 난할이 계속되었다. 수정 후 상실기는 6시간에 도달하였고, 낭배기는 20시간 20분 후에 완성되었다. 난황 표면에서 관찰되는 특이한 연동운동은 상실기에 시작되어 포배기 말기인 30% epiboly기까지 계속되었다. 수정 75시간 후에 부화에 이르렀고, 부화 직후 자어의 크기는 전장 5.91∼6.10 mm 이었다. 부화 3일 후에 입이 열리고, 수염과 부레가 완성되었으며, 전장 9.07 ∼9.37 mm까지 자랐다. 부화 15일후에는 모든 지느러미가 완성되어 후기자어기 상태이었고, 전장 14.80∼16.50 mm로 자랐으며, 부화 25일 후에는 체형, 체색 그리고 생활습성 등이 성체와 유사하고, 전장은 18.59∼22.35 mm까지 성장하였다. The Long-snout bullhead, Leiocassis longirostris, is an introduced fish from China which had become extinct in Korea. Its morphological characteristics and early life history was studied to obtain useful information required for restoration of the species and also for its utilization as an aquaculture fish. Measurements and counts of specimens introduced into Korea were included in the range of those taken from the known literature of Korea and China. Eggs were obtained by fertilization by wet method in the laboratory using one mature male and female adults of introduced L. longirostris. The fertilized eggs measured 2.01-2.10 ㎜ (n = 10) in diameter. The eggs were diskshaped and strongly adhesive, with colorless transparent membrane. The yolk was pale yellow in color with no oil globule. The blastodisc was formed in about 1 hour and cleavage started around 1 hour 30 minutes after fertilization. The cleavage intervals were about 30-50 minutes at 21.5-23℃. The morula stage was reached at 6 hours, and gastrulation was completed at 20 hours 20 min. after fertilization. Peristalsic movements of the yolk surface started at the morula stage and continued to the blastula stage (30% epiboly). Hatching occurred 75 hours after fertilization, and newly hatched larvae were 5.91-6.10 ㎜ (n = 10) in total length (TL). The mouth was open, and barbels and the air-bladder were completely formed 3 days after hatching, at 9.07-9.37 ㎜ TL. All the fin rays were completely formed and the larvae became a postlarva 15 days after hatching at 14.80-16.50 ㎜ in TL. Body shape, color pattern, and habitat behavior were similar to those in the adult at 25 days after hatching and a size of 18.59-22.35 ㎜ TL.

共同住宅 中央 集中 煖房設備의 信賴度에 관한 硏究

김동완,정순성,조용수 동아대학교 건설기술연구소 1997 硏究報告 Vol.21 No.1

The purpose of this study is to obtain reliability of heating equipments in apartment building. Field data concerning the failure of heating equipments recorded at the apartments constructed 14 years ago are used. As a result of the field data analysis, failure time distribution and cumulative hazard function of boiler, heat exchanger, steam header and various pumps are expressed in Weibull probability graph. The scale and shape parameters, MTBF of each equipments are presented by regression line of Weibull probability graph. Presented parameter wi31 be come into use a reference data to evaluate the reliability, to plan the maintenance scheme, and to evaluate economic renewal of equipments.

토양에서 분리한 Bacillus sp. G1으로부터 혈전 용해 효소의 순수 분리 및 그 유전자 크로닝

갈상완,조용운,김홍출,이상원,권득남 진주산업대학교 1998 산업과학기술연구소보 Vol.- No.5

토양으로부터 새로운 혈전 용해효소 생성 미생물을 순수 분리하였으며, 그 미생물의 특성을 조사하여 Bacillus종으로 확인하였다. 이 미생물로부터 혈전 용해 효소를 cthanol precipitation, DEAE-Sephadex G-50 column 그리고 Sephadex G-75 gel filteration column chromatography를 통하여 순수 분리하였다. 이 enzyme은 핏덩어리를 분해시키는데 고도로 특이적이며, 직접 분해시키는 type이었다. 이 효소의 분자 무게는 28 kDa 정도였으며, N-terminal amino acid sequence는 Gln-Thr-Gly-Gly-Ser-Ile-Ile-Asp-Pro-Ile-Asn-Gly-Tyr-Asn-Ser-Gly-Ile-Thy-Gln-Ala였다. 이 효소를 암호화하는 유전자를 위 미생물의 chromo-some으로부터 short-gun방법에 의해 크로닝하였으며 현지 DNA 연결순서 결정 중이다. 여러 가지 알려진 혈전 용해 효소와의 N-terminal amino acid 연결 순서 비교에서 이 효소는 Bacillus가 생성하는 새로운 혈전 용해 효소임을 확인하였다. A Bacillus sp. strain producing a new fibrinolutic enzyme was isolated from soil. The fibrinolytic enzyme was purified to electrophoretic homogeneity through consecutive procedures including ethanol precipitation, DEAE-sephadex A-50 column and Sephadex G-75 gel filtration column. The enzyme was highly specific forward fibrin clots and their direct degarder. The molecular weight of the enzyme was 28 kDa and the first 20 amino acids of the N-terminal sequence were Gln-Thr-Gly-Gly-Ser-Ile-Ile-Asp-Pro-Ile-Asn-Gly-Tyr-Asn-Ser-Gly-Ile-Thy-Gln-Ala. The gene encoding the fibrinolytic enzyme was cloned from chromosomal DNA of the bacillus sp. GI by the shot gun method. In comparison of the N-terminal amino acid sequence with those of several fibrinolytic enzymes the GK is a novel fibrinolytic enzyme of Bacillus sp. strain.

부산지역 사무소 건물의 연면적에 따른 냉방설비 시스템의 라이프 사이클 코스트 분석

정순성,김동완,조용수 동아대학교 건설기술연구소 1997 硏究報告 Vol.21 No.1

This study is aimed at proposing an economic Cooling System by total area using Life Cycle Costing, a general economical efficiency analysis method considering total amount of investment, service life, salvage value and the change of price caused by interest rate or inflation. LCC elements of Cooling System are Initial costs, Operations costs, Maintenance costs, Replacement/Alteration costs, Tax costs, Salvage costs etc., and considerable factors are Discount or Interrest rate, Escalation, Service life etc. In order to compare design alternatives, both present and future costs for each alternative must be brought to a common point in time. Costs may be converted to today's cost by the present-worth method, or may be converted to an annual series of payments by the annualized method.

농촌지역 중학생들의 체력과 정신건강에 관한 연구

장봉우,김태완,조경욱,김용인 忠北大學校 平生體育硏究所 1997 平生體育硏究所 論文集 Vol.9 No.-

This study was performed to investigate the relationship between the physical fitness and mental health state of the rural middle school students. Two-hundred thirty-four middle school students were placed into two gender groups(boys and girls) and/or three age groups(14, 15, and 16 yrs). All subjects completed the physical fitness tests and the mental health questionnaire. After those tests, the data was collected and analyzed by MANOVA and ANOVA, and Pearson's correlation and multiple regression. The conclusions were as follows. First, in consequence of the physical fitness comparison by gender and age, while aging, boys did not show a significant difference in power, balance, ability, and flexibility, having significant improvements in muscle strength, muscular endurance, and cardiovascular endurance. Second, in consequence of the analysis of mental health state by gender, results showed that boys were better than girls in the mental health state, especially boys were better in Somatization, Anxiety, Photic Anxiety, and Psychotism. Third, in consequence of the analysis of mental health status by age, results showed a significant difference in Obsession and Interpersonal Sensitivity among nine symptom check-up lists. The older the students were, the more they were suffering from Obession, and Interpersonal Sensitivity. Finally, in consequence of the analysis of the relationship between physical fitness and mental health status by gender, the physical fitness factors of boy students had no meaningful relationship with mental health factors. On the other hand, girl students had a meaningful relationship between muscle strength and mental health factors-Anxiety, Interpersonal Sensitivity, Hostility, Phobic Anxiety, Paranoid Adaption, and Psycotism. Also girl students had a significant relationship between flexibility and mental health factors-Obsessive, Somatization, Depression, Hostility, Phobic Anxiety, Paranoid Ideation and Psychotism.

건축공사시방서에서의 KS규격의 국제인증방안에 관한 연구

김경식,이재섭,김용수,이규진,조용훈,최완철,전재열,이현수,구재동,이기환 대한건축학회 2004 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.24 No.1

The purpose of this research is make out construction specifications for International Construction. Using off-shore products incur cost increase and longer delivery term of construction. and inconvenient on International Construction. Expand the range of additional local products conforming to performance. Life Cycle Cost. maintainability. operability. user's acceptability, etc.. And this study is suggest the standard formats and the techniques for construction specification.