콘크리트 표면성능개선에 의한 중성화억제방안에 관한 실험적 연구

강석표,김경덕,이병기,길배수,홍성윤,김무한 대한건축학회 2004 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.24 No.1(구조계)

Penetration of concrete by aggressive materials in solution may cause an undesirable effect on concrete durability, for instance when Ca(OH)₂ is being leached out or an attack by aggressive liquids takes place. In particular, carbonation occurs in concrete because the calcium bearing phases present are easily attacked by carbon dioxide and converted to calcium carbonate from surface of concrete, It has been known that the durability of reinforced concrete structure is concerned with the surface performance of concrete which affects on the carbonation occurred by invasion of CO₂ gas and the corrosion of steel bar occurred by O₂ In this paper, the effects of carbonation resistance by improvement of surface performance for concrete are investigated according to the accelerated carbonation test. It is believed that the carbonation resistance of concrete has been significantly improved by the application of penetrative hardening agent due to the formation of a dense surface.

한국 재래산양의 위장관에 분포하는 내분비세포의 면역조직화학적 연구

조성환,김무강,류시윤,허민도 대한해부학회 1992 Anatomy & Cell Biology Vol.25 No.1

조혈모세포이식술이 골수기질세포의 기원 및 조골세포로의 증식 및 분화에 미치는 효과

강무일,조성원,오은숙,백기현,이원영,오기원,김혜수,한제호,윤건호,차봉연,이광우,손호영,강성구,김춘추 대한내분비학회 2000 Endocrinology and metabolism Vol.15 No.4·5

Vibrio vulnificus에 의한 패혈증 3예

김신무,김유현,신상희,오재세,강숙희,윤여안,이화재,김영옥 대한임상병리사협회 1986 임상병리사회지 Vol.18 No.1

韓國在來山羊의 綱膜神經節細胞數와 分布에 關한 硏究

金武剛,趙聲煥,申台均 충남대학교 의과대학 지역사회의학연구소 1984 충남의대잡지 Vol.11 No.2

The number and distribution of retinal ganglion cells in the Korean native goats was studied with whole mount preparations stained with methylene blue and thionin. The mean area of 5 retinae is 918 mm² and the mean number of total ganglion cells was 1, 602, 000. So the mean number of ganglion cells per mm² was 1,745. The density distribution of the retinal ganglion cells showed that visual streak was located about 2mm dorsal to the optic disc, and area centralis (7,700 cells/mm') was located about 10mm temporally and 2mm dorsal to the optic disc. There was drop in density of retinal ganglion cells about the circumference of the visual streak in dorsal and ventral direction. The functional significance of the findings was also discussed.

鷄胎 羊膜囊의 輕視的 成長 變化에 關한 硏究

김무강,김상근 충남대학교 수의과대학 동물의과학연구소 1995 動物醫科學硏究誌 Vol.3 No.-

This paper dealt with the developmental changes of the amniotic surface area of the chick embryos from 5th to 9th days. Fetilized white leghorn 150 eggs were incubated and above 20 incubated eggs were freezed at random everyday in the refreezerater during 24 hr from the 5th incubated day to the 9th day serially and the chick amnions only containing chick embryos were photographied, and the plane surface area of the amnions were obtained by microcomputer image analyzer. These data were analyzed statistically and obtained results were as followings. 1. The amniotic surface area of chick embryos on each day of from the 5th to the 9th were 23.59±4.01 sq mm, 51.76±12.68 sq mm, 79.56±21.60 sq mm, 151.74±34.54 sq mm and 309.87±51.43 sq mm, respectively. 2. The rate of growth quantity of the amniotic surface area were increased by 2.19 on the day of the 6th to the 5th day, 3.37 on the day of 7, 6.43 on the day the 8th and 13.14 on the day 9th. 3. Coefficience variation on the day from the 5th to the 9th were 17%, 24.5%, 27.1%, 22.8% and 16.6%. 4. Except between 5th day and 6th day, the growth quantity between each day were increased significantly(P<0.001).

LiTaO_3 단결정을 사용한 압전변압기의 개발

황성필,김무준,하강열,강갑중 한국센서학회 2002 센서학회지 Vol.11 No.3

본 연구에서는 온도에 따른 압전특성이 매우 안정적인 LiTaO_3(x-112°y) 단결정을 이용하여 압전변압기를 제작하고 그 특성을 분석하였다. 제작시 LiTaO_3 단결정의 변환효율이 낮은 단점을 보완하기 위해 Lame'-mode를 이용하여 길이와 폭의 비가 2:1인 압전변압기를 제작하고 PSpice를 이용하여 진동 모드 해석, 입력전압에 따른 출력전압특성 및 진동속도특성을 분석하였다. 제작한 압전변압기는 길이방향의 제 2차 고조파 주파수와 폭방향의 기본공진주파수가 결합된 290.83(㎑)에서 입력전압에 대한 최대출력전압이 나타났으며, 약 10배 정도의 승압비를 얻을 수 있었다. The single crystal of LiTaO_3(x-112°y) has very stable thermal characteristics in a piezoelectric transformer. In this paper, a piezoelectric transformer made of the crystal is newly designed and its operating characteristics are analyzed. The length of the transformer is determined as twice as its width for Lame'-mode because the single crystal of LiTaO_3 has low electro-acoustic efficiency. The electric and vibrational characteristics of the transformer is simulated by the PSpice program, and its results are compared to experimental ones. As the results, the ratio of output voltage to input shows large than 10 at 290.83(㎑), which is the frequency coupled the 2nd harmonic for length and the fundamental for width of the Lame'-mode transformer.

극단적인 가격점프를 고려한 옵션가격결정모형의 유용성에 관한 실증연구 : Camara-Heston(2008) 모형을 중심으로

김무성,강태훈 釜山 大學校 經營 經濟 硏究所 2008 經營 經濟 硏究 Vol.27 No.2

지역사회 주민의 인비인후과 영역질환의 사회의학적 조사

최상규,남철현,김무룡,김기열,강영우,문기내 慶山大學校 保健福祉硏究所 2002 保健福祉硏究 Vol.7 No.-

This study was conducted to examine ear, nose, and throat diseases of community residents and related factors in Korea. 475 people who were experienced in suffering from the ear, nose, and throat diseases were chosen as the subjects of this study. Data were collected in Daegu, Kimchon, Andong, Pohang, Kyungsan from February 1, 2000 to May 30, 2000. The results of this study are summarized as follows. 1. Among ear, nose, and throat diseases, the incidence of throat diseases was highest (42.3%). The incidence rate of nose diseases was 31.9%, while that of ear diseases was 25.7%. The incidence of these diseases were significantly related to the variables of sex, age, occupation, religion, education level, smoking, and drinking. 2. When the respondents were afflicted with ear diseases, 47.7% of them was treated in ear, nose, and throat hospitals or clinics, while 29.4% of them was treated in general hospitals or clinics. 13.2% of them just endured without receiving treatment. 5.7% of them was treated in their homes and 3.9% of them was treated in pharmacies. 3. 28.9% of the respondents was treated for their ear diseases during two weeks; 24.2% 'during one week'; 20.5% 'during three to four days'; 12.6% 'during one to two days'; 9.0% 'during one to two days'; 4.8% 'during over six months'. The period of treatment was significantly related to the variables of sex, age, occupation, marital status, religion, smoking, drinking, and exercise. 4. When the respondents took nose diseases, 27.4% of them was treated in ear, nose, and throat hospitals or clinics, while 24.7% of them was treated in general hospitals or clinics. 18.6% of them just endured without receiving treatment. 17.7% of them was treated in pharmacies and 5.9% of them was treated in their homes. 5. 27.0% of the respondents was treated for their ear diseases during three and four days; 23.6% 'during on week'; 17.3% 'during two weeks'; 13.5% 'during one to two weeks'; 10.0% 'during one to two months'; 8.6% 'during over six months'. The period of treatment was significantly related to the variables of sex, ccupation, religion, education level, smoking, drinking, and exercise. 6. The throat diseases were caused by cold (30.2%), tonsils (29.3%), and bronchitis (15.7%). When the respondents took throat diseases, 26.1% of them was treated in ear, nose, and throat hospitals or clinics, while 25.3% of them was treated in general hospitals. 20.2% of them was treated in pharmacies and 12.4% of them just endured without receiving treatment. 10.3% of them received reatment in clinics, while 5.6% of them was treated in their homes. 7. The level of satisfaction with treatment for ear diseases was 3.58±1.12 points on the basis of 5 points, while that for throat diseases was 3.19±0.085 points. In case of information sources on ear, nose, and throat diseases, 31.8% of the respondents obtained the information from doctors, while 21.4% of them got it from TV or Radio. 15.9% of them obtained it from family members, neighbors, or friends and 10.0% of them obtained it from magazines, newspapers or pamphlet. Only 7.0% of them got it from pharmacists. 8. 67.2% of the respondents thought that mass media dealt with the ear, nose, and throat diseases lightly. 40.6% of them replied that education and publicity of those diseases would be necessary, while 10.7% of them replied those would not be necessary. Among the ear, nose, and throat diseases, the incidence rate of throat diseases was highest (42.3%). The ear diseases showed the highest level of satisfaction with treatment, while the throat diseases displayed the lowest level of satisfaction with treatment. Although the diseases are very serious in Korea, they are dealt with lightly in terms of education and publicity through using mass media. Therefore, the government, otorhinolaryngologists, and related associations must make great efforts to prevent the diseases.

소 卵胞의 體外培養에 의한 卵子의 體外成熟과 體外受精에 관한 硏究

金相根,南潤伊,山根倫子,金武剛 충남대학교 수의과대학 동물의과학연구소 1997 動物醫科學硏究誌 Vol.5 No.-

This study was to investigate the effects of the follicular culture from which the oocytes origenate on their subsequent in vitro maturation. The follicular oocytes were cultured in TCM-199 medium containing FCS, hormones, BFF for 24-30 hrs in CO^2 incubator with 5% CO^2 in air at 38.5℃ and then matured oocytes were again 18-20 hrs with motile capacitated spermatozoa in the BO solution containing 100 ㎍/㎖ of heparin. The results obtained in these experiments were summarized as follows : 1.Ovarian follicles were isolated and cultured according to size 1-2 ㎜, 2-4 ㎜, 4-6 ㎜ and 6-8 ㎜ for 24-30 hrs. The rates of GVBD in each group were 80.0%(40/50), 84.4%(38/45), 77.8%(35/45) and 84.0%(42/50), but oocytes maturation were supressed at anaphaes-Ⅰ or telephase-Ⅰ stage. 2. When oocytes cultured for 4 hrs at 35℃ in medium with BFF and hormones after follicular culture for 24-30 hrs, the maturation completed to metphase-Ⅱ stage. However, rates of GVBD in oocytes from follicular culture were higher than oocytes cultured in medium. 3. When oocytes from follicle cultured for 4 hrs at various temperature and culture time were cultured for 24-30hrs the rates of oocytes maturation from follicle cultured at 20℃(43.6%, 24/55), 30℃(47.3%, 26/55) and 35℃(52.7%, 29/55) were significant higher than group cultured at 4℃(24.4%, 11/45). 4. When oocytes from follicles cultured for hrs at 35℃, the rates of oocytes maturation and fertilization rates were 67.3%(101/150), 29.3%(44/150) and oocytes cultured for 24-30hrs at 35℃, thr rates of oocytes maturation and in vitro fertilization were 86.5%(122/141), 53.9%(76/141), respectively.