18 Ni 마르에이징 강의 기계적 성질에 미치는 Mo 첨가량의 영향

김학모,김인배,박세윤 ( Hak Mo Kim,In Bae Kim,Se Yoon Park ) 한국열처리공학회 1991 熱處理工學會誌 Vol.4 No.3

Effects of Mo content and aging conditions on the amount of retained austenite and mechanical properties of 18 Ni maraging steels were investigated. Maraging steels were fabricated with variation of Mo content, 3, 5, 7, 9% and heat treated by austenitizing at 840℃ for 1 hour and then aged at 480℃ for 0.5∼100 hours. It was found that the amount of retained austenite after aolution treatment was negligible up to 5% Mo. 8 and 11 volume percents of retained austenite were obtained with 7 and 9% Mo respectively. The maximum hardness and yield strength without great loss of impact toughness were attained in the range of 4∼8 hours of aging time at 480℃ with 5% Mo. It was concluded, as a result, that the optimum Mo content for the good combination of strength and toughness is to be 5% Mo.

중세 국어의 보조용언에 대한 연구

손세모돌 한양대학교 한국학연구소 1994 韓國學論集 Vol.24 No.-

바닥輻射 煖房시스템의 熱傳達 特性

연인모,김대기,이세균 충북대학교 건설기술연구소 2002 建設技術論文集 Vol.21 No.2

The object of this study is to investigate the thermal characteristics of heating system with floor radiation for residential building. As a first step, the thermal resistance of floor constructed with mortar and concrete has been studied while hot water is supplied through pipe under the floor surface. A heat transfer model of floor heating system which has natural convection and radiation from floor surface to the heating space has been developed to predict the heat transfer and the temperature of floor surface. Also, expriments have been performed and the results have been compared with those of heat transfer model. This study does not include all the heat transfer characteristics associated with typical heating system with radiant floor in detail. However, heat transfer modeling developed in this study can be a first step in design of comfortable floor temperature. Therefore, the results of this study can provide important informations to construct and optimize such a system.

졸겔법에 의한 알루미나 박막의 제조 및 특성(Ⅰ) ; 코팅용 알루미나 sol의 합성

최세영,안준모,이재호,윤태일 연세대학교 산업기술연구소 1993 논문집 Vol.25 No.1

The properties of alumina sol for single layer Anti-Reflective film by dip-coating were investigated. Transparent alumina sol could be obtained by heating the sol within 2 hours after hydrolysis at room temperature. The particle size of sols decreased with increasing the amount of nitric acid, while the specific surface area and the total pore volume of heat treated gels increased, up to the ratio of 0.1 mol nitric acid per 1 mol alkoxide. Excess addition of nitric acid above 0.1 mol resulted in decrement of the specific surface area and the total pore volume, and broadness of the pore size distribution. The average pore diameter and the total pore volume of heat-treated gel at 400℃ with composition of 1 alkoxide·100 water·0.1 nitric acid in ratio were ?? and 0.315 cc/g, respectively.

우리나라의 統一情勢展望 : 南北韓 統一方案考察

文世模 충남대학교 행정대학원 1984 行政硏究 Vol.3 No.-

21C를 향한 부산 지역의 Green사회체육 활성화 방안

이근모,오세복,김윤숙,김세정,이영덕 釜山大學校 附設 體育科學硏究所 1996 體育科學硏究所 論文集 Vol.12 No.-

The purpose of this study was to create plan of Green Sport for all in Pusan toward 21st century. The plan of Green Sport for all in Pusan toward 21st century was conducted by theoretical analysis based upon an advanced countries' sport for all state and Pusan's sport for all state. The result of this study are as follows; 1. To set plan for sport for all in Pusan, it should consider the environment of sport for all for citizen's social welfare. It is more important to use the present facilities effectively with the good management than expand sport for all facilities. To set budget for all facilities to expand it is expected from 2002 Pusan Asian Games's profit. 2. The public sport facilities and sport for all facilities should be open for citizen after build sport for all facilities at the near river and sea side. It should give permission to build green sport for all facilities in the zone of protect development. The regulation of entrance fees at the public sport center such as basketball gymnasium, soccer stadium, and baseball stadium. To enter public sport center, it is recommended free for athletes to do competition or exercise and for citizen the lowest fee is recommended during whole year. The officials should be consider very good quality of service for citizen. Also, school's sport facilities are recommended to open for citizen after school off. 3. It is recommended to build one sport center at every district(gu) in Pusan like Sport for all Pusan association (The memorial olympic hall). The olympic park should protect forever, it should not be allowed for other purpose whenever. 4. The government should set budget for labor's sport clubs. Also, the government try to encourage to expand labors' sport facilities in the company as the law promotion for labors' sport. 5. The government and the government of Pusan city should lead every company to keep the law of promotion for labors' sport. Also, the government leads company to promote sport for labors at each company by the reduction of taxation for company such as th incorporation tax and a real estate acquisition tax. For example, the government let them reduce company's tax for company's private sport facilities(center) so give them chance to invest for sport facilities. 6. KOC should keep remain neutral to promote territory's sport, university team in Seoul should get away from the victory oriented idea then they might participate as amateur at the national tournament. 7. To reduce traffic at the center of the Metropolis, the energy saving purpose, the effective using of the center of the Metropolis, and to increase sport for all people, the green sport for all underground facilities are recommended at the foot of Youngdo park and the public elementary, junior, high school's ground without the nature damage. And then it will be help a lot to citizen to stress out and to use effective leisure time for themselves. 8. It was suggested that the green sport for all facilities might build in the sea near the yacht race center at Soo young, Haeundae bathing resort and Kwangan ni bathing resort, with minimizing nature damage. The green cultural resport and ocean sport facilities were recommended at the sea side to play yacht, wind surfing, water ski, and water bicycle for touring and sport for all purpose. 9. The green winter sport resort and sport resort were recommended at Seungji park and Daeshin park for citizen. After build these facilities, it should be open for citizen every day.

Formocresol을 사용한 치수절단술시 Formaldehyde의 전신적 흡수, 분포 및 급성독성에 관한 연구

이범모,한세현 大韓小兒齒科學會 1990 大韓小兒齒科學會誌 Vol.17 No.1

Formaldehyde that is active constituent in fomaocresol used in pulpotomy is known astoxic agent that causes systemic toxicity. To determine the fate of ?? -formaldehyde which was absorbed following its application to pulpotomy sites, by-pass of posterior facial vein and cannulation of external carotid artery were established with 20G-polyethylene tube. Blood samples (0.2ml) were collectd in glass syringe before the pupotomy and then at 0, 3, 5, 10, 20, 30, 45, 60, 90 and 120 minutes there-after. Plasma was separated after centrifugation at 3000xg for 15 min and aliquots of plasma were counted by liquid scintillation counter. After liver, kidney, lung, heart, spleen, muscle, and socket were removed and solubilized with tissue solubilizer, the radioactivities in solutions were counted by liquid scintillation counter. The acute toxicity of formocresol wsa determined by BUN (Blood Urea Nitrogen), GOT (Glutamic Oxalacetic Transaminase) and OCT(Ornithine Carbamyl Transferase) assay in blood samples collected at 0, 2, 4, 6, 9 and 12 hours by means of cardiac puncture. The results were as follows: 1. The radioactivity of ?? -formaldegyde reached maximal value at 3-5 minutes and decreased thereafter. 2. About 8% of ?? -formaldehyde placed in the pulpotomy site was actually absorbed systemically until 2 hours. 3. About 50% of ?? -formaldegyde absorbed actually was distributed within 20 minutes. 4. The radioactivity of organ per gram was highest in the spleen and lowest in the muscle. 5. Total radioactivity of organ was highest in the liver and lowest in the heart. 6. There were no significant differences between control and experimental groups in BUN, GOT and OCT assay.

FORMOCRESOL을 이용한 치수절단술시 FORMALDEHYDE의 전신적 흡수 및 급성독성에 관한 연구

이범모,한세현,김관식,정동균 대한구강생물학회 1990 International Journal of Oral Biology Vol.14 No.1

Formaldehyde that is active constituent in formocresol used in pulpotomy is known as toxic agent that causes systemic toxicity. To determine the fate of the ^14C-formaldehyde which was absorbed following its application to pulpotomy sites, by-pass of posterior facial vein and cannulation of external carotid artery were established with 20G-polyethylene tube. Blood samples (0.2ml) were collected in glass syringe before the pulpotomy and then at 0, 3, 5, 10, 20, 30, 45, 60, 90 and 120 minutes thereafter. Plasma was separated after centrifugation at 3000 x g for 15 min and aliquots of plasma were counted by liquid scintillation counter. After liver, kidney, lung ,heart, spleen, muscle, and alveolar socket were removed and solubilized with tissue solubilizer, the radioactivities in solutions were counted by liquid scintillation counter. The acute toxicity of formocresol was determined by BUN, GOT and OCT assay in blood samples collected 0, 2, 4, 6, 9 and 12 hours by means of cardiac puncture. The results were as follows ; 1. The radioactivity of ^14C-formaldehyde reached maximal value at 3-5 minutes and decreased thereafter. 2. About 8% of ^14C-formaldehyde placed in the pulpotomy site was actually absorbed systemically until 2 hours. 3. About 50% of ^14C-formaldehyde absorbed actually was distributed within 20 minutes. 4. The radioactivity of organ per gram was highest in the spleen and lowest in the muscle. 5. Total radioactivity of organ was highest in the liver and lowest in the heart. 6. There were no significant differences between control and experimental groups in BUN, GOT and OCT assay.

小兒에 있어서의 우식活動性에 對한 硏究

韓世鉉,李範模 大韓小兒齒科學會 1986 大韓小兒齒科學會誌 Vol.13 No.1

This study was performed to evaluate the caries activity with dental plaque of upper right second primary molar by caries activity tester (suntec) and the author compared this caries activity with deft&s index, rate and caries severity. The selected subjects for this study were 97 children (boys 52, girls 45) aged from 3 to 8. According as the swabbed plaque condition was wet or dry, caries activity degree was evaluated in 18 among 97 children. The obtained results were as follows: 1. Caries activity of boys showed slightly higher than that of girls. Deft&s index, rate were also higher in male than in female. 2. According as the caries activity was slightly increased, deft & s index, rate were slightly increased. (P<0.05) 3. According as the caries severity showed increasing tendency, caries activity was also increased. (P<0.05) 4. There was no difference in the caries activity according to wet or dry condition of plaque sample.

"좀"의 상황적 의미

손 세모돌 한양대학교 한국학연구소 1988 韓國學論集 Vol.14 No.-

The purpose of this paper is to study the contextual meaning of "com(좀)" when it is spoken idiomatically. "Com(좀)" is a adverb in Korean and its conceptual meaning is 'a little'. It shows three meanings by context. They are 'POLIT-ENESS]' 'EMPHASIS', and 'NEGATION'. They depend on position of syntax and form of utterance. It is a distribution that a basic condition of occurence of contexusl meanings. As for the form of utterance, 'POLITENESS' reveals in imperative and request. And 'EMPHASIS' appears in a variety of form of utterance. 'NEGATION' is able to use only declavative form . Distribution in syntax is related predicate phrase. 1. 'POLITENESS' : Between NP and VP. It is general that subject NP is deleted. 2. 'EMPHASIS' : ①Within PredP which moves for a unit of meaning. ㉠. Between Advp and VP. ㉡. Between NP and formal verb (or pro-verb) "hada(하다)" ②. At the backward of the PredP 3. 'NEGATION'Between subject NP and VP Between object NP and VP, 'POLITENESS' and 'EMPHASIS' coexist. One of them comes out according to situation. It is 'EMPHASIS' that has the most wide distribution. "Com(좀)" owes its meaning of 'POLITENESS' to a conceptional meaning. It obtains by minimizing a demand of VP. On imperative and request, polite expression by addition of linguistic form is universal in many language. "Com(좀)" is equivalent to "please" in English and "s'il vous plait" in French. 'EMPHASIS' is syntactic meaning that in obtained by movement of nomal word order. 'NEGATION' has syntactic restriction which is allowed only negative expression. But it is not able to use negaive adverb. It can only use some adjective of implying difficulty of situation. "Com(좀)" is used in strategy for minimizing imposition or decreasing trouble between speaker and hearer. As it were, it is one of the strategy of consideration for hearer.