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      • 생활체육 활성화를 위한 체육시설 현황분석

        정문현,이재관 忠南大學校體育科學硏究所 1996 體育科學硏究誌 Vol.14 No.1

        This study was to suggest improvement for physical in life of Taejon after analyzing current sports facilities. This research, which was carried mainly through related documents, studied present condition of public of private sports facilities and suggested the following to be improved: 1. The number of sports facilities in Taejon to activate physical education in life is the lowest among the largest 6 cities. And they should be enlarged in relation to existing facilities, local characteristic, and local equality with other cities. 2. Various sports facilities should be added to make participants' sports effect the largest one and to raise the rationality of sports. And the criterion of sports facilities both in school and in company should be strengthened to be used for physical education in life. 3. Most public facilities are mainly used for sports games and this result in low degree of constitution to physical in life. So a solution should be made to use these facilities. Furthermore, the security, cleanness and convenience of facilities should be improved to enlarge the participants' desire.

      • 정치망 원통의 어획기능과 어군의 이동행동

        김문관,정상희양 제주대학교 해양연구소 1997 해양자원연구소연구보고 Vol.21 No.-

        The moving behaviour of fish schools in the bag-net of a large scale set-net was investigated using scanning sonar. This was done in the Kishihata set-net fishing ground, which is located in Nanao city Ishigawa prefecture in Japan. from Nov. 18. 1992 to Dec. 4. 1992. The results obtained are summarized as follows: 1. Moving behaviour of fish schools between two bag-nets can be divided into two groups. The first group includes Frigate mackerel. Yellowtail and Jack mackerel. while the second group consists of Tunas. The Tunas often did move. however the first group rarely moved. The result suggests that fish school movements depend on the type of fish. 2. As for two bag-nets. Frigate mackerel. Yellowtail and Jack mackerel, tended to appear in the afternoon. however Tunas appeared in the daytime. Therefore, the appearance of fish schools depend on the type. 3. The peak speed of Frigate mackerel. Yellowtail and Jack mackerel was 90cm/sec at the first bag-net. 60cm/sec at the second bag-net, but through the second slope-net they moved at 120cm/sec. Therefore. the fish schools that move through the second slope-net move faster than those that move at the first bag-net. and the second bag-net. The result suggests that the second slope-net can be a factor which affects fish schools.

      • 정치망어장에 있어서 어군의 일주행동

        김문관,안장영 제주대학교 해양연구소 1998 해양자원연구소연구보고 Vol.22 No.-

        Diurnal migration of fish schools in the set-net fishing ground was investigated by telesounder and underwater video camera in relation to the catching function of the set-net. The investigation took place in the Hamdok set-net fishing ground located in the coast of Cheju Island, from July 25 to August 7 . 1995. The obtained results are summarized as follows: 1. The rate of entering and leaving the set-net was 30%. among the fish schools approaching the set-net area. 2. The greatest number of fish schools were observed between 12:00 and 18:00, after which the schools suddenly disappeared. 3. The swimming speed of horse mackerel and mackerel were 10~40cm/sec dominant speeds were 25~35cm/sec(58%) and 15~25cm/sec(78%) respectively.

      • 정치망어법에 있어서 집어등의 유도효과에 관한 연구 : 백열등에 대한 어류의 행동반응 Response of Fishes to the Incandescent Electric Light

        김문관,박정식 濟州大學校海洋硏究所 1995 해양과환경연구소 연구논문집 Vol.19 No.-

        제주도 연안 정치망에서 어획된 전갱이,고등어,잿방어를 실험어로서 집어등의 照度差 및 光照射시간에 의한 각 어종의 분포양식과 호적조도범위 그리고 성군행동의 차이를 세미휠드에서 조사분석하였고 이를 요약하면 다음과 같다. 1. 전갱이는 가두리내 광원의 조도 최고치가 낮으면 처음부터 광원에 모여들고,광원의 조도 최고치가 높으면 광원에 체류하지 않고 밝은 구역과 어두운 구역의 중간구역에서 주로 체류하였다. 그리고,光照射시간에 따른 전갱이의 분포양식은 밝은 곳에서 어두운 곳으로 이동하였다. 2. 고등어는 가두리내 광원의 조도가 높고 낮음에 관계없이 점등과 동시에 밝은 구역으로 모이고,그후 어두운 구역과 밝은 구역 사이를 왕복 이동 하였다. 그리고 光照射시간에 따른 고등어의 분포양식은 전갱이에 비하여 강하지는 않지만 밝은 곳에서 어두운 곳으로 약간씩 이동하고 있었다. 3. 잿방어는 가두리내 광원의 조도가 높고 낮음에 관계없이 점등과 동시에 밝은 구역으로 이동하다가 중간구역에서 U턴하여 어두운 구역으로 재차이동하였고, 주로 어두운 구역에서 체류하였다. 그리고, 光照射시간에 따른 잿방어의 분포양식은 점등후의 행동양식과 변함없이 어두운 구역에서 주로 체류하였다. The authors carried out an experiment to find out the disposition of Horse mackerel Trachurus japonicus, Mackerel scomber australasicus and Amberjack Seriola dumerili(Risso) to the incandescent electric light. The experimental crawl(16 m in length, 3 m in breadth and 1 m in depth) was set up at the semi-field in shore. The bottom of the experimental crawl was sectioned by white rope into 48 sections equal in area of one sqare meter. The incandescent electric light of 1Kw was used as light source. Observing the behaviour of the fish, the pattern of fish distribution in the experimental crawl was recorded by counting their individuals found in each section at intervals of three minutes for three hours. Under illumination of 290∼0.1 lux, the Horse mackerel stayed in a part of higher illumination during long times. However, under illumination of 450∼1 lux, the Horse mackerel stayed in a part of middle illumination during long times. Under illumination of 290∼0.1 lux and 450∼1 lux, the Mackerel stayed in a part of higher illumination during short times, then they left for a part of lower illumination. The fish stayed in a part of lower illumination during short times, then they left for a part of higher illumination. This movement of the fish was repeated more than once. Under illumination of 290∼0.1 lux and 450∼1 lux, the Amberjack stayed in a part of lower illumination during long times.

      • 일측성선조체의 6-OHDA손상 후 도파민효능약물 투여로 발현된 회전운동의 특성

        이순철,문민선,이수정,유민,윤철호,유관희 충남대학교 약학대학 의약품개발연구소 1997 藥學論文集 Vol.13 No.-

        The present study examined the characteristics of behavior induced by dopamine agonists following treatment with 6-hydroxydopamine(6-OHDA) unilaterally into left striatum in rats. 6-OHDA was administered at doses of 8.16 and 24 ㎍/2㎕(in 0.1% ascorbic acid) into dopaminergic neurons in left striatum of 7 weeks old rat under anesthetic. Locomotor activity was significantly decreased at 1 week following 6-OHDA-administration in 7 weeks old rats. The contralateral circling behaviour was inducd by apomorphine(5 ㎎/㎏, I.p.) after 1 week following 6-OHDA(24 ㎍/2㎕) treatment, and was further increased by repeated administration of apomorphine at 2, 3 and 4 weeks. The contralateral circling behavior was also induced by lisuride and 1-dopa in a dose dependent manner, but not by SK & F 82526 in 7 weeks old rats treated with 6-OHDA, The contralteral circling behavior ws significantly higher in 21 weeks old rats but significantly lower in 35 weeks old rats when compared with 7 weeks old rats. The contralateral circling behavior induced by apomorphine did not differ significantly in and 35 weeks old male and female rats. These results suggest that 6-OHDA treatment into left striatum causes remarkable destruction of intrastriatal dopaminergic neurons leading to dopaminergic receptor supersensitivity. Thus, the contralateral circling behavior induced by apomorphine may be used as indicator for neurodegenerative diseases.

      • 각망어구의 구조개량을 위한 기초적 연구

        류창곤,김석종,김문관,박정식 제주대학교 해양연구소 1997 해양자원연구소연구보고 Vol.21 No.-

        In order to increase fishing efficiencies of the fyke net used in the coast of Cheju Island water tank experiment was caried out entering and escaping behavior using nets that were reduced to 1/20 of the size of fyke net and were improved to have antrance structure, and Mackerel Scomber japonicus as experimental fish. The results of measurement are as follows: 1. Fish school behavior in the main net was showed two different patterns: swimming in a circle in the right space of the main net and swimming back and forth in ellipse in the right and left space. 2. The swimming speed of mackerel school was 24.9. 12.6 and 32.0cm/sec in the center space. right space of main net and in the mouth. 3. The entering rate of fish school was 40% in net with 35cm length of the upper and funnel net in the mouth of fyke model net and 49% in conventional type fyke model net. 4. The escaping rate of fish school was 10% in net with 35cm length of the upper and funnel net in the mouth of fyke model net and 69% in conventional type fyke model net. 5. The remain rate of fish school was 90% in net with 35cm length of the upper and funnel net in the mouth of fyke model net and 31% in conventional type fyke model net.

      • KCI등재

        아동 및 청소년기의 하악각부 피질골 두께에 관한 방사선학적 연구

        백병주,김미라,노용관,김문현,김재곤 大韓小兒齒科學會 1998 大韓小兒齒科學會誌 Vol.25 No.1

        The purpose of this stufy was to determine the thickness of the cortical bone at the mandibular angle in children and adolescents. The subjects were composed of 153 subjects who were 3 to 17 years of age that had not been history of bone disease or metabolic disease and no dental caries or tooth loss on mandibular molars. The subjects were divided into three age groups, group Ⅰ(preschool children) was 3 to 5 years of age and group Ⅱ (school children) was 6 to 11 years of age and froup Ⅲ (adolescence) was 12 to 17 years of age. Panoramic radiographs of these patients were collected and measurements of the thickness of the cortical bone were obtained at the mandibular angle. The average thickness of the cortical bone in the group Ⅰ was 1.01±0.18 mm in boys and 1.07±0.22 mm in girls. In the group Ⅱ was 1.23±0.18 mm inboys and 1.32±0.18 mm in girls. In the group Ⅲ was 1.60±0.23 mm in boys and 1.58±0.20 mm in girls. Statistical analyses did not reveal any significant difference was exist between the right or left side of the mandible but difference was exist between the same age groups by sex, especially in group Ⅱ (p<0.01), except in group Ⅲ. The greater thickness of cortical bone in the older age group was shown to be statistically significant. The correlation coefficient between age and the thickness of the cortical bone at the mandibular angle showed a high value of r=0.76.

      • 용접부에 작용하는 구동력에 의한 용융풀 거동 분석

        김일수,김학형,조선영,강봉용,강문진,유관종 한국공작기계학회 2004 한국공작기계학회 춘계학술대회논문집 Vol.2004 No.-

        Over the last few years, there has been a growing interest in quantitative representation of the weld pools in order to relate the processing conditions to the driving forces of the weldment produced and to use this information for the optimization of the welding process. A theoretical model offers a powerful alternative to check the physical concepts of the welding process and the effects of driving forces. To solve this problem, a 2-D thermo-fluid model were developed for determining temperature and velocity distribution for the GMA welding process.

      • 모체 Thyroxine 투여가 태아알코올효과를 가진 흰쥐 대뇌겉질 및 해마에서 NPY함유 신경세포의 생후 발달에 미치는 영향

        김복,박상기,박영란,김종중,문정석,김주수,문영민,현영식,천관영,정윤영 朝鮮大學校 附設 醫學硏究所 2005 The Medical Journal of Chosun University Vol.30 No.2

        Background and Objectives: Maternal alcohol abuse is considered to be one of the most prominent cause of neurobiological malformations in the postnatal and adult life of the offspring. In this study, we investigated the effects of maternal alcohol drinking on the postnatal development of NPY-containing neuron, and, the influence of thyroxine treatment on the cerebral cortex and hippocampus of pups of alcohol abused mother. Materials and Method: Time-pregnant rats were divided into three groups. Alcohol-fed group A received 35 calories of liquid alcohol diet daily from gestation day 6; control pair-fed group B was fed a liquid diet in dextrin replaced alcohol isocalorically: alcohol + T4 group C received 35 calories liquid alcohol diet and exogenous thyroxine subcutaneously. Results: Group C showed prominent NPY immunoreactivity in the cerebral cortex compared to group A and B at P7. In group C, NPY-containing neurons were widely distributed in the all layers of cerebral cortex after P14. Besides, numerical decrease of NPY-containing neuron as age increases was not found in group C. However, the decrease of NPY-containing neuron was clearly observed in group A compared to group C after P14. In hippocampus, group Band C were appeared similar patterns after P7. Additionally, in group C, NPY immunoreactivity was prominently appeared in CA2 and CA3 at P14 as compared to group B. Conclusions: The present results showed the increase of intensity and number of NPY-containing neurons in cerebral cortex and hippocampus of pups of exogenous T₄ supplemented alcohol-exposed dams as compared to control pair-fed and alcohol-exposed pups at P7. It presumably suggest that NPY-containing neurons might be regulated by the early postnatal growth stimulatory effect of the exogenously supplemented T₄. Therefore, the increase of NPY synthesis caused by maternal administration of exogenous thyroxine may ameliorate fetal alcohol effect, one of the ill effects as a result of the dysthyroid state following maternal alcohol abuse.

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