Effects of Supplementation with Needles of Pinus densiflora on the Fermentation Characteristics of Honey Wine

Je-Hyuk Lee1(이제혁),Woo-Cheul Han(한우철),In-Chul Kim(김인철),Chul Cheong(정철),Soon-Ah Kang(강순아),Ki-Hyo Jang(장기효) 동아시아식생활학회 2011 동아시아식생활학회지 Vol.21 No.3

침수후 시간에 따른 교정용 레진접착제의 전단결합강도 변화

이제준,김종철 전남대학교 치과대학 1998 전남치대논문집 Vol.10 No.1

The purpose of this study was to evaluate the changes of shear bond strengths and failure patterns in orthodontic resin adhesives according to the water immersion time. Metal brackets were bonded to the specimens involving the premolars with chemical-cured(Concise??) and light-cured(Transbond??) adhesives. The shear bond strength was measured on universal testing machine and the failure patterns were assessed with the adhesive remnant index(ARI) after storage in distilled water at 37℃ for 1 day, 1 week and 1, 3, and 6 months, respectively. The results were as follows : 1. The shear bond strengths at the 6 month in both Concise and Transbond were significantly higher than those at the 1 day and 1 week(P<0.05). There were positive correlations between shear bond strength and water immersion time in both Concise and Transbond(P<0.01). 2. There were no significant differences in shear bond strength between Concise and Transbond. 3. The brackets were failed primarily at the bracket base-adhesive interface and there was no significant difference in the incidence of ARI scores according to the water immersion time.

600N급 강을 적용한 기둥-보 용접접합부의 인성평가

이철제,박양희,김성배,김종락 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.2(구조계)

This paper aimed to evaluate the toughness of the 600N grade high strength column to beam steel welded joint which subjected to cyclic loading. The specimens were designed as a unit frame of tall building's middle-stores, and cross type weld connection. SA440 were used for column and SM490 for beam. Six tests were carried out. EBS (Enlarged Beam System) specimens were considered to be superior structural strength, ductility capacity. Beam to column connection using EBS showed higher strength and toughness than the basic shape.

침수후 시간에 따른 교정용 레진접착제의 전단결합강도 변화

이제준,김종철 대한치과교정학회 1998 대한치과교정학회지 Vol.28 No.5

본 연구는 침수후 시간경과에 따른 레진접착제의 전단결합강도 변화를 비교연구하고 파절양상을 평가하기 위하여 시행되었다. 건전한 제1소구치를 포매하여 만든 시편에 화학중합형 레진접착제인 Concise 와 광중합형 레진접착제인 Transbond 를 이용하여 금속 브라켓을 부착하고 37℃ 증류수에 1일, 1주일, 1개월, 3개월, 6개월 동안 침수시킨 후 전단결합강도를 측정하고 파절양상을 관찰하여 다음과 같은 결론을 얻었다. 1. 침수시간에 따른 전단결합강도 비교시 Concise군과 Transbond군 모두에서 6개월의 결합강도가 1일, 1주일, 1개월에 비해 유의성있에 높았으며(P<0.05) 상관검정 결과 침수시간이 증가할수록 전단결합강도가 증가하는 것으로 나타났다(P<0.01). 2. Concise군과 Transbond군간의 전단결합강도 비교에서는 유의한 차이가 없었다. 3. 접착제 잔류지수를 통하여 파절양상을 비교 관찰한 결과 브라켓 기저부와 접착제 경계부에서의 탈락이 가장 많았으며 침수시간에 따른 접착제 잔류지수간에 유의한 차이는 없었다. The purpose of this study was to evaluate the changes of shear bond strengths and failure patterns in orthodonic resin adhesives according to the water immersion time. Metal brackets were bonded to the specimens involving the premolars with chemical-cured(Concise ) and light-cured(Transbond ) adhesives. The shear bond strength was measured on universal testing machine and the failure patterns were assessed with the adhesive remnant index(ARI) after storage in distilled water at 37℃ for 1 day, 1 week and 1, 3, and 6 months, respectively. The results were as follows : 1. The shear bond strengths at the 6month in both Concise and Transbond were significantly higher than those at the 1 day, 1 week 1 month(P<0.05). There were positive correlations between shear bond strength and water immersion time in both Concise and Transbond(P<0.01). 2. There were no significant differences in shear bond strength between Concise and Transbond. 3. The brackets were failed primarily at the bracket base-adhesive interface and there was no significant difference in the incidence of ARI scores according to the water immersion time.

600N급 TMC후판강재를 적용한 기둥과 보 용접접합부의 인성평가

이철제,김종락,김종성,최문식 대한건축학회 2004 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.24 No.1(구조계)

This paper aimed to evaluate the toughness of the 600N class TMC column to beam steel welded joint which subjected to cyclic loading. The specimens were designed as a unit frame of tall building's middle-storeys, and cross type weld connection, 600N class TMC steel were used for column and SM490 for beam. Two tests were carried out. Two specimens were considered to have the same structural property and ductile capacity. The specimen adapted scallop type showed the same toughness value as the speciment used non-scallop type.

負荷强度가 動的筋力 Training의 效果에 미치는 特性

李京濟,李喆奎 江原大學校附設體力硏究所 1978 江原大學校附設體育科學硏究所論文集 Vol.- No.3

The results of 12 week training of bench press charged with the 80%, 60%, and 40% of maximal strength as the load intensions respectively was shown as follows: 1. The increase of maximal strength was that the more load intension was charged the stronger the maximal strength became. 2. As to the development of endurance, high strength level of muscle endurance was developed at the high load intension, and low strength level of muscle endurance was developed at the low load intension. 3. The load intension of the training, therefore, should be determined according to the object of the training.

富歸芍藥散이 白鼠의 排卵에 미치는 影響

李汀帝,金鐘桓,金哲源,柳深根 한국전통의학연구소 2000 한국전통의학지 Vol.10 No.1

Dangguijagyagsan(DGJYS) is used in infertile. An attempt was to evaluate the influences of DGJYS on the serum concentrations of FSH, LH and estrogen, the histolgical and optical changes of ovary. The results of the study were as follows : 1. Blood FSH level increased in experimental group as compared with control group on 5th day and 10th day, which showed no efficacy. 2. Blood LH level decreased in experimental group as compared with control group on 5th day and 10th day, which showed no efficacy. 3. Blood E2 level increased in experimental group as compared with control group on 5th day and 10th day, which showed no efficacy. 4. In histolgical observations of ovary, ovulation increased in experimental group as compared control group on 5th day and 10th day, which showed no efficacy. 5. In optically observations of ovary, size of ovary showed no change in exerimental group as compared with control group on 5th day and 10th day. 6. In histological observations of ovary, endometrium showed multiplication. According to these results, the effects of DGJYS are assumed to be usefully utilized for progress of ovulation on uterus and ovary.

Methicillin내성 포도 구균의 기타 항균제에 대한 감수성

이경수,이제철,설성용 慶北大學校 醫科大學 1991 慶北醫大誌 Vol.32 No.1

A total of 204 strains of Staphylococcus aueus isolates in 1987, 1988, and 1989 were studied for the frequency of methicillin-resistant S. aureus (MRSA) and antimicrobial susceptibility and also were examined for oxacillin screening tst and change of minimal inhibitory concentration (MIC) of methicillin at the various conditions. When S. aureus were incubated on the agar media supplemented with 4% NaCl at 35℃ for 72 hours, 33(16.2%) of 204 strains were resistant to methicillin. In oxacillin screening test, oxacillin resistance was found in 33 (16.2%) of the 204 strains. Compared to the MIC of methicillin, oxacillin screenigng positive strains were not same strains of methicillin resistant S. aureus. Total frequency of MRSA was 24 (11.8%) of 204 strains. The frequencies of MRSA in 1987, 1988, and 1989 were 12 strains (9%), 11 strains (16.9%), and 1 strain(20%), respectively and MRSA increased yearly. All MRSA had multiple antibiotic resistance from 9 to 15 tested antibiotics and resistance to 12 antibiotics was the most predominant. All MRSA were resistant to kanamycin, gentamicin, penicillin and cefoxitin. More than 75% MRSA were resistant to amikacin, cefotaxime, cephalothin, tetracycline, rifampin and erythromycin. All MRSA were susceptible to minocycline, vancomycin and trimethoprim-sulfamethoxazole. More than 75% MRSA strains were susceptible to norfloxacin, ciprofloxacin and doxycycline.

소양호의 DOC와 POC의 분포

김범철,최광순,김철구,이유희,김동섭,박제철 江原大學校 附設 環境硏究所 1998 環境硏究 Vol.15 No.-

Seasonal and vertical distributions of dissolved and particulate organic carbon were investigated from May 1995 to March 1997 in n deep mesotrophic reservoir, Lake Soyang, POC contentrations at the dam site ranged from 0.1 to 1.8 mgC/L and DOC concentrations ranged from 1.4 to 4.9 mgC/L. POC concentrations in the surface layer were higher in the season of cyanobacterial bloom, July to September. High POC was observed at the depth of 30 to 60m after storm runoff in summer monsoon season. Turbid storm runoff formed intermediate current laden with much particulate materials from terrestrial sources. The vertical and seasonal variation of DOC was smaller than POC. Higher DOC was observed near the lake bottom which implies sedimentation and degradation of much organic detritus at the bottom. The ratio of DOC : POC varied from 2 to 60, and the ratio was lowest in September 1995 when algal density was highest. DOC : POC ratio of the main inflowing river, the Soyang River, varied from 1 to 10, and the ratio was low in storm runoff when the POC concentration was high.

금오지의 수환경 및 부영양화 평가

박제철,김동섭,이승환 한국환경과학회 2004 한국환경과학회지 Vol.13 No.4

Seasonal and vertical distribution of water quality were investigated from May 2001 to June 2002 in Kumoh reservoir located nearby Kumi City, Kyungpook. Kumoh reservoir that lost the role of agricultural irrigation is currently of rapid eutrophication. The vertical distribution of DO was observed clinograde with hypolimnetic anoxic zone. T-P concentrations at the surface ranged from 0.008 to 0.152 mgP/L and T-N concentrations ranged from 1.4 to 3.0 mgN/L. The vertical and seasonal variation of T-N was smaller than T-P. DOC concentrations, indicator of organic matter pollution, ranged from 2.8 to 5.4 mgC/L. Apportionment of Total-DOC (T-DOC) indicated that 14% of T-DOC was attributed to Labile-DOC(L-DOC) and the rest was due to Refractory-DOC(R-DOC). The values of TSI(Trophic State Index) ranged between 44 and 52 indicating that Kumoh reservoir is under mesotrophic condition. The results of this study indicate that Kumoh reservoir is likely to be under influence of eutrophication and thus water quality will be aggravated. Therefore, the Kumoh reservoir requires further treatment to improve water quality and a plan of the reusing water resource should be developed.