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      • KCI등재

        난관복원술의 성공율을 높이는 제반여건의 고찰

        김종덕,두재균,류철희,차경연,양재이 대한산부인과학회 1991 Obstetrics & Gynecology Science Vol.34 No.6

        난관복원술의 성공율을 높이는 제반 여건을 알아보기 위하여 1982년 3월부터 1990년 2월까지 만 8년 동안 전북대학교병원 산부인과 불임크리닉에 내원하여서 미세수술을 이용한 난과복원술을 시행받은 총 116명중 6개월이상이 추적조사가 가능하였던 106명의 예를 분석하여 다음과 같은 결론을 얻었다. 1. 난관복원술후 임신성공율은 추적조사가 가능하였던 106명중 90명(84.9%)이었다. 2. 난관복원술의 동기는 자녀사망이 전체 평균 65.1로 가장 많았으나 1987년이후부터는 재혼(24.6%)과 심경의 변화(20.0%) 등이 증가하여 서구화되는 경향을 보여주고 있었다. 3. 난관복원술후 임신군의 평균연령은 28.5세, 비임신군은 30.3세이었다(p$lt;0.05). 4. 불임수술후 난관복원술까지의 평균기간은 임신군에서 35.5개월, 비임신군에서 42.4개월로 임신군에서 그 기간이 짧았다(p$lt;0.05). 5. 임신성공율에 따른 복원술후 난관 길이는 임신군 8.3 cm, 비임신군 6.8 cm이었다(p$lt;0.05). 6. 불임수술 방법에 따른 결과는 Falope ring군이 난관의 길이도 가장 길고 임신성공율도 91.7%로 가장 높았다(p$lt;0.05). 7. 난관복원술 부위에 따른 임신성공율은 팽대부-팽대부, 자궁각부-팽대부, 협부-협부, 협부-팽대부순이었다(p$lt;0.05). 8. 난관복원술후의 임신하기까지의 기간은 임신군에서 1년이내가 95.5%로 가장 높았으며 2년이후에는 1예도 없었다. 9. 난관복원술후 난관임신 발생율은 1명(0.9%)이었다. 10. 본 교실에서 고안하여 사용하고 있는 Kim`s clamp와 Doo`s microirrigator 등은 난관성형술에 있어서 아주 유용한 기구로 사료되었다. For evaluation of factors that influence the success rate of tubal reversal, 116 cases of microsurgical reversal were investigated, which were performed at the infertility clinic in the Department of Obstetrics and Gynecology, Chonbuk National University Hospital from March 1982 to February 1990. 106 cases were able to follow up more than 6 months among these 116 cases of tubal reversal patients. The results were as follows; 1. The pregnancy rate was 84.9%(90 patients) in 106 cases of tubal reversal. 2. The most common incentive was the loss of their children(75.5%), but since 1987 remarriage(24.6%) and change of marital attitude(20.0%) were increasing steadily. 3. After tubal reversal, the mean age of pregnant patients was 28.5 years and that of non-pregnant patients was 30.3 years(p$lt;0.05). 4. The time interval between the sterilization and the tubal reversal was 35.5 months in pregnancy groups, 42.4 months in non-pregnancy groups(p$lt;0.05). 5. The mean length of reconstructed tube was 8.3 cm in pregnancy patients, 6.8 cm in non-pregnant patients(p$lt;0.05). 6. Referring to the sterilization types, the pregnancy rate was higher and the length of reconstructed tube was longer in those who underwent tubal ligation with Falope ring. 7. Referring to the site of anastomosis, the pregnancy rate was higher in ampulloampullar, cornu-ampullary, isthmo-isthmic anastomosis than other group(p$lt;0.05). 8. The pregnancy rate within the first year after tubal reversal was 95.5%, but no case after 2 years was noted. 9. Postoperative tubal pregnancy developed in one case(0.9%) after tubal reversal. 10. Kim`s clamp and Doo`s microirrigator were considered to be valuable instruments in tubal surgery.

      • OpenCV와 Tesseract를 이용한 번역기

        이지은,이종길,최성혁,최혁두 순천향대학교 부설 산업기술연구소 2021 순천향 산업기술연구소논문집 Vol.27 No.2

        In this paper, when receiving image input from various angles from an electronic medium such as a smartphone, a system for recognizing and translating characters by processing images in the image is presented. The translator designed in this paper processed images using a library called OpenCV. Through OpenCV, the boundary of the image can be found, and the distorted image is corrected. After that, Tesseract-OCR was used to enable the computer to convert the characters displayed in the image into strings. After transforming the image that was not placed forward as a function of OpneCV in the forward direction, Tesseract was applied to the deformed image. Characters in images from various angles were recognized, translated using Google Translation API, and the results were displayed on the image and presented.

      • KCI등재
      • KCI등재
      • KCI등재
      • KCI등재
      • 초등학생의 성별 및 인지양식에 따른 협동학습에서 나타나는 생물 관찰 특성

        김지혜,김동렬,김선숙,문두호 부산대학교 사범대학 과학교육연구소 2006 科學敎育硏究報 Vol.33 No.-

        This study examined the effects of the gender and the cognitive style which contribute to cooperative learning of elementaiy school children's competence in the observation of living things. The purpose of this study was to provide a basis for the effident teaching and learning in cooperative learning of elementary school children through careful analyses of children's observation. Results showed characteristic patterns of cooperative observation according to the gender and the cognitive style of children. The findings indicated that the field-independent groups reported more kinds observation than the field-dependent groups. The findings indicated that the girl's groups reported more kinds observation than the boy's groups except on animals. The effects of the gender on the observation of animals was not significantly different. Results of the analysis on the degree of focused observation showed that the field-independent groups reported more the degree of focused observation than the field-dependent groups and the girl's groups reported more the degree of focused observation than the boy's groups. As a result, the cognitive style and the gender could be one of the factor involved in the observation oh living things, therefore the further research of teaching methods and learning strategies should be encouraged in relation to this factor.

      • KCI등재

        메타분석을 통한 가정특성 관련변인이 학업성취에 미치는 영향

        김지은,구병두 건국대학교 중원인문연구소 2001 동화와 번역 Vol.2 No.-

        This paper was designed to synthesize quantitatively the master's theses and doctoral dissertations focusing on effects of students traits related variables on academic achievements in Korea. This task was accomplished by utilizing the meta-analysis technique of research integration as defined by Glass(1982). Basically, meta-analysis is a statistical analysis of the summary findings of many empirical studies. Its purpose is to draw reliable and general conclusions from a large and complex body of literature on a common topic. Thus, the primary purpose of this paper was to conduct a quantitative synthesis of 240 master's theses and doctoral dissertations focusing on the effects of academic achievements using students traits as independent variable and academic achievement as dependent variable. Eighteen independent variables were chosen by means of in depth review of those previously mentioned 240 studies. The independent variables employed in this study include intelligence, creativity, cognitive style, meta-cognition, anxiety-stress, alienation, needs, personality, self-concept, attribution orientation, expectation perception, teaming helplessness, social character, career awareness, learning motivation, attitude, learning attitude, aptitude-interest. These variables are cartegorized by four different groups according to the traits of variable in terms of intellectual function variable, affective function variable, self-cognition, motivation- attitude-cu atom variable group. This study set the following questions to be answered: (1) How large are the grand average effect size of variables of students traits proposed in this study on student's academic achievement?; (2) How different the effect size of the four students traits related variable groups, naimly intellectual function variable group, affective function variable group, self-cognition variable group, motivation-attitude-custom variable group on student's academic achievement?; and, (3) How different the effect size of the eighteen students traits related independent variables on student's academic achievement? In order to answer the research questions, the researcher followed the standard procedures as such locating published studies to collect primary data, analysing and cording the characteristics and outcomes of the studies, and carring out statistical procedures of mata-analysis to describe the overall and sub-variable effects. Primary source of data was decided to limit within the master's theses and doctoral dissertations in order to achieve the reliability and validity of the study results. By using the CD-ROM titled 'masterㆍdoctoral dissertation index' published by National Central Library in 1955 and 1997, a total of 262 studies were located and collected. Out of 262 studies, 240 studies were selected by excluding those studies that are not possible to employ mata-analysis such as studies used qualitative research method. While classifying students traits related variables some of studies were also excluded in this study due to failing a consensus among the five specialists participated in this process. The effect size was calculated by using two different approaches depending upon the applicability of effect size formula. One was by using mean and standard deviation of experimental group and their countpart. The other was using transformational formula suggested by Wolf(1986) for the studies that have not presented descriptive statistics. The result of tutus study may be summarized as follows: (1) The grand average degree of effects of the academic achievement factors proposed in this study turned out to be .47. This means that if the average size of effects of the academic achievement factors of the controlled group is 50 percentile in the normal distribution, that of the experimental group becomes 68.08 percentile. As it were, the latter surpass the former by 18.08 percentile. (2) Between the four groups of academic achievement factors proposed in this study, in terms of intellectual function variable group showed the higher average effect size, its average effect size being 1.01. And affective function variable group showed its average effect size being .09. And self-cognition group showed its average effect size being .44. And motivation-attitude-custom variable group showed its average effect size being .63. (3) Among the eighteen students traits related independent variables on academic achievements proposed in this study, the variable of meta-cognition showed the highest average effect size of 1.84, as followed by expectation-perception (effect size of 1.24), intelligence (effect size of 1.11), learning helplessness (effect size of 0.77), aptitude-interest (effect size of 0.87), creativity (effect size of 0.T), cognitive style (effect size of 0.70), learning attitude (effect size of 0.64), social character (effect size of 0.60), career awareness (effect size of 0.58), self-concept (effect size of 0.49). The effect size of these variables tamed out to be bigger that the grand average effect size of .47. This result means that these variable effects on student's academic achievement a lot more compare to other variable proposed in this study. In fact, the effect size of those variables such as learning motivation (effect size of 0.45), aptitude (effect size of 0.43), attribution orientation (effect size of 0.35), needs (effect size of 0.34), alienation (effect size of -0.23), personality (effect size of 0.22), and anxiety-stress (effect size of -0.10) turned out to be much smaller than that of previously mentioned variables. It means that the variable of meta-cognition, expectation-perception, Intelligence, learning helplessness, aptitude-interest, creativity, cognitive style, learning attitude, social character, career awareness, self-concept effect more on student's academic achievement compare to variables of teaming motivation, aptitude, attribution orientation, needs, alienation, personality, and anxiety-stress.

      • 胎盤組織 Guanine Aminohydrolase에 關한 硏究

        유지헌,林圭,郭相太,黃炳斗 충남대학교 의과대학 지역사회의학연구소 1987 충남의대잡지 Vol.14 No.2

        Guanine aminohydrolase(EC 3.5.4.3, GAH) has been purified from human term placenta approximately 1,280-fold with a 10% yield by combination of ultracentrifuge, ammonium sulfate precipitate, Sephacryl S-300 chromatography, calcium phosphate gel adsorption, DEAEcellulose chromatography and hydroxyapatite chromatography, and then its properties were investigated. 1. The purified enzyme appeared single protein band by SDS/polyacrylamide gel electrophoresis. 2. The enzyme showed a pH optimum around 5.6-8.6. It was heat labile, inactivated by heat-treatment for 10 minutes at 70℃, and irreversively denatured by freezing and was stable at 4℃ for at least 1 month. 3. Copper ion (Cu^2+) was a potent inhibitor, the activity being inhibited upto 75% at 2 mM concentraion and the inhibition was completely recovered its activity by additon of 4 mM EDTA, and zinc ion (Zn^2+ also inhibited upto 40% at 2 mM concentration. The other ions did not almost inhibit. 4. The apparent Km value for guanine was 4 X 10^-5M, and the enzyme activity was completely inhibited by 0. 5 mM of p-hydroxymercuribenzoic acid, but all of the activity was recovered in adding 10 mM mercaptoethanol. 5. The molecular weight of the enzyme showed 170,000 by Sephacryl S-300 chromatography, and 55,000 by SDS-polyacrylamide gel electrophoresis. And the properties such as above results of guanine aminohydrolase of human term placenta are compared with those of guanine aminohydrolase of other tissues.

      • Photoacoustic Effects on Material-coated window

        朴奉斗,尹志洪,韓聖愚 慶北大學校 産業開發硏究所 1979 硏究報告 Vol.7 No.-

        Photoacoustic effect was studied with the air cell and tungsten lamp. The air cell had a material-coated window. As the coating material, one of the following materials was used; the lamp black, copper, nickel and aluminum. The incident light was chopped by the rotating disc, and entered through the material-coated window. The produced photoacoustic signal intensity is approximately inversely proportional to the chopping frequency. This effect was the same as that when the chopped light entered into the air cell from the opposite side, gas side. The signal intensity, however, was much smaller than that of tho light incident from the oppsite side. The photoacoustic signal intensity was varied with the thickness and kinds of coated material. In the case of aluminum the intensity was rapidly decreased when thickness increased. In the case of copper, however, the intensity was increased until the thickness increased to a certain value, and over this value the intensity was decreased slowly.

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