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황의천,김일남,김남호,이봉형,왕수현 강원대학교 석재복합신소재제품연구센터 1997 석재연 논문집 Vol.2 No.-
본 연구의 목적은 석재복합 신소재제품 연구센터의 데이터베이스를 인터넷상에서 구축하여 이 데이터베이스가 연구활동 및 산업지원활동을 지원하도록 하는데 있다. 연구센터와 관련된 데이터베이스를 인터넷상의 세계정보망(world-wide web)이 연계 및 등록시켜 적극적으로 연구소의 활동을 홍보함과 동시에 세계정보망을 통한 각국의 다소 산업체의 산업정보를 실시간(real time)에 검색할 수 있는 정보망을 구축할 것이다. 석재복합 신소재제품 연구센터의 연구활동, 연구결과와 관련 산업체의 활동들을 데이터베이스화한 뒤, 이를 인터넷상에 제공함으로써 연구소의 연구활동 및 관련산업체들의 활동을 국제적으로 홍보하며 각국의 수요와 온라인으로 상담 및 전자우편을 나눌 수 있으므로 해서 지역경제의 국제화를 맞을 것으로 기대된다. 또한 앞으로 있을 정보고속도로의 구축과 활용을 위하여 본 연구는 기여하게 될 것이다. The purpose of this study is to construct the database of RRC research center on internet to support the research activities and industrial activities. Registering the database on internet, the center will proactively advertise the local industrial activities and will construct the information network which will enable the real-time search for industrial information. The database will include RRC's research activities, research output, and related industrial's activities. The homepage will advertise the RRC's activities worldwidely, support the online business, provide the e-mail, and it will enable the research center to be the leader of internationalization of local economy. The study will also contribute to further study of information highway.
운동이 세포성 면역기능과 호르몬 반응에 미치는 영향에 관한 연구
이형국,김의수 師範大學 體育硏究所 1993 서울大學校 體育硏究所論集 Vol.14 No.1
The purpose of this study was to investigate the effect of exercise on immune and hormone response in 6 healthy male college students and 6 male athletes. They participated in to kinds of experiments. In the pre-experiments, they performed bicycle ergometeric protocols for the determination of ??. Based on the results of the pre-experiment, variouse intensities(60% ??, 80% ?? ) were determined. In the main experiments, they performed bicycle ergometric exercise till exhanstion. Venous blood sample were drawn at five times-at rest, 60% ??, 80% ??, all-out, and 30 minutes in recovery. Lymphocyte subsets were determined by flow cytrometry using monoclonal antibodies(Leu) for total T-, B-, ??-, ??-lymphocyte. Hormones were also determined by radioimmunoassy. The main findings of this study were as follows; 1. The number of total leukocyte of the athletes was greater than of the students during exercise. But no significant differences were observed in the number of total leukocyte between the athletes and the students. 2. The number of lymphocyte of the athletes was greater than of the students during exercise. There were significant differences between the athletes and the students in the points of 80% ?? and all-out. 3. The number of T-lymphocyte of the athletes was greater than of the students during exercise. There was a significant difference between athletes and the students at 30 minutes in recovery. 4. The number of B-lymphocyte of the athletes was significantly greater than of the students in the point of all-out. And, at the point of 60% ?? and 80% ??, the number of B-lymphocyte of the students was slightly greater than of the athletes. 5. There was no significant effect of exercise on the percentage of ??-, ??-lymphocyte. 6. Epinephrin and norepinephrine responses were pronounced in the athletes compaired with the students during exercise, however, there no significant difference between the athletes and the students.
근관충전방법에 따른 치근단부 근관의 미세누출에 관한 연구
유형준,홍찬의 大韓齒科保存學會 1998 Restorative Dentistry & Endodontics Vol.23 No.1
Advisor : Prof. The quality of apical seal obtained with 3 different gutta-percha obturation techniques was compared in 49 recently extracted single rooted teeth. The root canals were instrumented using step-back technique and obturated with laterally condensed gutta-percha, Continuous Wave gutta-percha, and hybrid technique. Teeth were suspended in black India ink for 7 days, cleared, and then examined under a stereomicroscope at x10 magnification. The results were as follows ; 1. All experimental groups produced favorable apical seal. 2. The mean leakage was 0.23±0.25 mm for group 1, 0.17±0.21 mm for group 2, and 0.19± 0.23 mm for froup 3, but there was no statistical difference amoung them. Within the limits of the results of this experiment, the Continuous Wave gutta-percha obturation technique demonstrated relatively favorable apical sealing effect and shorter obturation time. Thus, it is thought that this obturation technique is a acceptable method for clinical use but further studies on this metter should be conducted.
고능력 젖소 축군의 집단번식관리프로그램 적용에 의한 번식효율의 개선
노경수,김의형,남현욱,서국현,강현구,김일화 충남대학교 형질전환복제돼지연구센터 2004 논문집 Vol. No.8
We investigated the effect of reproductive herd health program (RHHP) on the reproductive performance in high yielding dairy herds. Data collected from 205 lactations at Boeun County, Chungbuk from April 2001 to Dec. 2003 included postpartum reproductive and metabolic diseases, body condition score (BCS), reproductive performance and milking records. First we compared the reproductive performance of cows without RHHP (pre-RHHP group) and cows with RHHP (RHHP group). Intervals from calving to first service (99.6 vs. 81.8 days) and to conception (160.3 vs. 131.8 days) were shorter in the RHHP group than in the pre-RHHP group. Secondly, we determined the effect of milk yield (305 days) on the occurrence of postpartum diseases, BCS changes, and reproductive performance in cows under RHHP, The occurrence of metritis and metabolic diseases were greater in the over-10,000 kg group than in the under-l0,000 kg group. The over-10,000 kg group lost more body condition than the under-10,000 kg group from calving to month 3 postpartum. Nevertheless, reproductive performance did not differ between the two groups. These results indicate that reproductive performance can be improved by the application of RHHP in high yielding dairy herds and that reproductive performance in the cows under RHHP are not affected by high milk yielding.
Description of the External Genitalia and Uterus of a 24-month-old Freemartin Hanwoo
Ui-Hyung Kim,Sung-Sik Kang,Ki-Yong Chung,Boh-Suk Yang,Sang-Rae Cho 한국수정란이식학회 2018 한국동물생명공학회지 Vol.33 No.1
We observed the external genitalia and uterus of a 24-month-old freemartin Hanwoo. The vulva was smaller than observed in a normal female Hanwoo, while the clitoris was larger in the freemartin. The angle between the external genitalia and the perineum also varied. Upon internal genital examination, the uterus of the freemartin was a thin tube approximately 18 cm in size and had not differentiated into a normal uterus and uterine horns.
Description of the External Genitalia and Uterus of a 24-month-old Freemartin Hanwoo
Kim, Ui-Hyung,Kang, Sung-Sik,Chung, Ki-Yong,Yang, Boh-Suk,Cho, Sang-Rae The Korean Society of Embryo Transfer 2018 한국동물생명공학회지 Vol.33 No.1
We observed the external genitalia and uterus of a 24-month-old freemartin Hanwoo. The vulva was smaller than observed in a normal female Hanwoo, while the clitoris was larger in the freemartin. The angle between the external genitalia and the perineum also varied. Upon internal genital examination, the uterus of the freemartin was a thin tube approximately 18 cm in size and had not differentiated into a normal uterus and uterine horns.