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      • KCI등재

        체외충격파쇄석술 전후의 담낭수축능 비교

        오윤진 대한영상의학회 1991 대한영상의학회지 Vol.27 No.6

        The purpose of this study was to determine whether extracorporeal shock wave lithotripsy(ESWL) of gallstones alters contractability and volume of the gallbladder in response to a fatty meal. The gallbladder was examined by ultrasonography before and after ESWL. Eight patients with gallstones and seven healthy volunteers were included in the study. Gallbladder contractbility was not altered in all of the patient after ESWL, although gallbladder confraction was already delayed and less complete in gallstone patients, compared with healthy controls(residual volume; 33.8%$\pm$18.3% VS 10.0% $\pm$ 3.7%, half contraction time; 37.8$\pm$21.7min VS 23.1$\pm$6.9min). These findings suggest that ESWL has no immediate adverse effects on gallbladder motility. The residural volume and half contraction time in gall stone patients were 33.8%$\pm$18.3% and 37.8%$\pm$21.7min. In the healthy control group the two values were 10.0%$\pm$3.7% and 23.1$\pm$6.9min.

      • KCI등재

        마의 재배방법 차이가 생육 및 수량에미치는 영향

        오윤진,김정곤,김종호 한국국제농업개발학회 1992 韓國國際農業開發學會誌 Vol.4 No.2

        本 試驗은 1990年 農村振興廳 熱帶農業官室 試驗圃場에서 비닐멀칭平畦栽培 비닐멀칭畦立栽培 비닐공대栽培 플라스틱원통栽培등 栽培方法 差異가 收量 및 收穫時 塊根 切斷率에 미치는 영향을 검토하고자 수행하였던바 그 結果는 다음과 같다. 1. 蔓長은 長마가 短마보다 컸으며 栽培方法間에는 두 品種 모두 비닐멀칭畦立栽培가 가장 크고 플라스틱원통栽培가 가장 작았다. 2. 塊根長은 비닐공대栽培와 플라스틱원통栽培가 비닐멀칭平畦栽培나 비닐멀칭畦立栽培보다 길었다. 3. 收穫時 塊根切斷率은 長마가 短마보다 높았으며 두 品種 모두 비닐공대栽培에서 현저히 낮았다. 4. 收量은 長마가 短마보다 약간 많았으며 두 品種 모두 비닐공대栽梧 > 비닐멀칭畦立栽培 > 플라스틱원통栽培 > 비닐멀칭平畦栽培 順으로 많았다. A field trial on yam (Dioscorea opposita THUMB.) cultivation was done to decrease the high rate of mechanical damage to tubers during harvesting and to increase the yield. The short and long type yam were transplanted with a planting distance of 70×30㎝ on May 4th. Those yams were cultivated on flat ridge cultivation with polyethylene film (PEF) mulching, high ridge cultivation with PEF mulching(ridge height 40㎝), flexible plastic cylinder cultivation (height 50㎝, diameter 30㎝), and polyvinylchloride (PVC) cylinder cultivation (height 50㎝, diameter 20㎝). The plant height was a little higher in the long type yam than that of the short type. It was the heightest in the high ridge cultivation with PEF mulching, and the shortest in the PVC cylinder cultivation. The length of the root in flexible plastic and PVC cylinder cultivation were much longer, as compared with the flat and high ridge cultivation with PEF mulching. The rate of mechanical damage to tubers during harvesting was low in short type yam and remarkably decreased in both cultivar by flexible plastic cylinder cultivation. The yield was highest in the flexible plastic cylinder cultivation, followed by the high ridge cultivation with PEF mulching, PVC cylinder cultivation and flat ridge cultivation with PEF mulching. Flexible plastic cylinder cultivation was best in growth yield and had the lowest rate of mechanical damage to roots.

      • KCI등재

        Dosimetric Comparisons of Intensity-Modulated Radiotherapy, Volumetric Modulated Arc Therapy, Tomotherapy, Stereotactic Radiosurgery, and Proton Therapy for Treatment of Patients with a Vestibular Schwannoma

        오윤진,신동오,공문규,신동호,정원규,김동욱 한국물리학회 2019 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.74 No.4

        This study compares the dosimetric characteristics of radiotherapy treatment methods for patients with a vestibular schwannoma. We generated and compared intensity-modulated radiotherapy (IMRT), volumetric modulated arc therapy (VMAT), tomotherapy (TOMO), and proton therapy (Proton) treatment plans among eight patients with a vestibular schwannoma who received stereotactic radiosurgery based on M3 (M3-SRS) treatment. The dose comparison of the planning target volume (PTV) was performed by calculating the homogeneity index (HI), conformity index (CI), coverage index (CVI), and equivalent uniform dose (EUD). A dose comparison for adjacent normal organs was performed by calculating the EUD and the normal tissue complication probability (NTCP). The PTV coverage showed excellent dose homogeneity and conformity on the target volume for M3-SRS treatment. The sparing of the organs at risk (OARs) was excellent in terms of dose delivery to most normal organs away from the target for Proton; however, the other modalities were also within the tolerance dose limit for the OARs. This study further conrmed the possibility of using radiotherapy, along with the use of other treatment methods, for patients with a vestibular schwannoma.

      • KCI등재후보

        수퍼비전 기능에 영향을 미치는 요인에 대한 연구: 수퍼바이저와 사회복지실습생의 개인적 특성과 수퍼비전 구조를 중심으로

        오윤진,이순민 한국사회복지교육협의회 2012 한국사회복지교육 Vol.20 No.-

        This study aimed to explore differences of learning styles, preference and performance of supervision functions between supervisors and supervisors in social work field practicum. Also, this study explored whether supervisors and supervisors' personal traits and supervision structures influence supervision functions. The study was conducted among 105 Social Work students and 97 field practicum supervisors at one of the Cyber Universities in Seoul, Korea. The study results show significant differences in active experimentation of the learning styles between the supervisee and supervisor groups. There is no significant difference in preference and performance of the supervision functions between the two groups. The number of supervisee predicted the supervisors' performance of supervision functions, while gender, active experimentation of the learning styles, supervision methods and supervision contents expected the supervisor's preference of supervision functions. There is no statistically significant factor found in predicting supervisee's preference of supervision functions. Based on the results, implications for supervision in Social Work practicum are suggested. 본 연구의 목적은 사회복지실습생들과 실습지도자들을 대상으로 두 집단 간의 학습유형, 수퍼비전 기능 선호도 및 실행도의 차이를 살펴보고, 수퍼바이저와 실습생의 수퍼비전 기능 실행도와 선호도에 영향을 미치는 요인들이 무엇이 있는지를 파악하는데 있다. 이에 본 연구는 서울에 있는 한 사이버대학교 사회복지학부 실습생 총 105명과 97명의 실습 수퍼바이저를 대상으로 설문조사를 실시하였다. 그 결과를 살펴보면, 수퍼바이저와 실습생은 학습유형의 능동적 실험에서만 통계적으로 유의미한 차이가 나타났다. 수퍼바이저와 실습생 집단 간의 수퍼비전 기능 실행도와 선호도는 통계적으로 유의미한 차이를 보이지 않았다. 수퍼바이저의 수퍼비전 기능 실행도에 영향을 미치는 요인으로는 수퍼비전의 구조 요인인 담당실습생 수가 수퍼바이저의 교육적 수퍼비전 실행도에 영향을 미치고 있는 것으로 나타났다. 수퍼바이저의 수퍼비전 기능 선호도에 영향을 미치는 요인으로는 수퍼바이저의 개별적 특성 요인인 성별과 학습유형의 능동적 실험, 그리고 수퍼비전 구조 요인인 수퍼비전 형태, 수퍼비전 내용이 지지적 수퍼비전 선호도에 영향을 미치고 있는 것으로 나타났다. 실습생의 선호하는 수퍼비전 기능에는 어떤 요인도 통계적으로 유의한 영향을 미치지 않는 것으로 나타났다. 이를 바탕으로 사회복지현장실습을 위한 함의를 제시하였다.

      • Thermochromic Microcapsules containing Cholesteric Liquid Crystals for Temperature Monitoring at Microenvironment

        오윤진,김지원,김신현 한국고분자학회 2021 한국고분자학회 학술대회 연구논문 초록집 Vol.46 No.2

        Liquid crystals (LCs), especially in a cholesteric phase have a thermochromic property that shows structural color as the helical pitch length changes with temperature. We can easily control the thermochromic property due to high mobility of LCs, but it cannot guarantee the structural stability of LCs, because the order of LCs is easily destroyed by external environment. In this work, we present a microfluidic approach to encapsulate thermochromic LCs in microcapsules with hydrogel shells. The hydrogel shells can protect LCs from environmental stimuli, and ensure stable incorporation and precise thermochromic property of LC core. Using a capillary microfluidic device, monodisperse oil-in-water-in-oil (O/W/O) double emulsion drops are produced, emulsifying innermost LC phase in aqueous solution of hydrogel precursor. Microcapsules that have various combinations of LC mixture in the core can show broad color play ranges, thereby visualizing temperature distribution of the system.

      • KCI등재

        토마토(Lycopersicon esculentum) 의 이식기 침수 처리에 따른 생육 반응

        오윤진,이영만,구자옥,국용인,노상언,천상욱 한국환경농학회 1997 한국환경농학회지 Vol.16 No.1

        이식기의 토마토에 각각 침수깊이를 지면 위 0, 5, 10, 15 ㎝의 4개 처리에, 각각 시간을 6, 12, 24, 48, 120시간 조합 처리 후 생육저해정도, 생리적 변화 및 수량 감소등을 비교 검토하였다. 침수의 깊이가 깊어질수록, 그리고 시간이 길어질수록 초장, 개체당 엽수, 지상부 및 지하부 생체중이 유의적으로 감소했고, 개화는 0 ㎝ 침수에서 24시간, 5∼10 ㎝에서 6시간까지 개화가 가능하였으나, 15 ㎝에서는 6시간 경과에서도 이루어지지 않았다. 부정근의 발생은 침수깊이에 관계없이 48시간 침수를 전후하여 발생이 증대되었다. 근활력은 포화수 상태에서는 시간 경과에 따라 완만한 감소경향을 보였으나, 5 ㎝ 이상의 침수에서는 따라 급격한 감소를 보였다. 엽록소 함량감소는 근활력에서와 유사한 경향을 보였다. 잎의 기공저항성은 침수깊이와 시간경과에 따라 증대되었다. 광합성과 호흡률은 침수깊이와 시간경과에 따라 감소 하였으며 호흡률의 감소는 비교적 완만하였으나, 광합성은 침수깊이가 깊어지고 시간이 48시간이상시 극히 저조하였다. 발병은 침수처리깊이와 시간 증대에 비례하여 커졌고, 살균제 처리에 따른 방제 가능성은 유묘기와 같은 경향이었으나 효과는 미흡한 정도였다. 요소엽면시비에 의한 효과는 유의적으로 없었다. 120시간경과에서는 침수깊이에 관계없이 식물체가 고사되어 수량을 기대할 수 없었다. 그러나 침수의 깊이보다도 시간 차이에 따른 개체당 총 과수 감소나 평균중의 변이가 인정되었으며, 특히 평균 과중은 침수깊이의 증대로 오히려 커졌다. 초장, 엽수, 생체중과 엽록소 함량, 근활력 및 수량 특성 제형질들 상호간에는 정의 상관관계가 있었으며, 이들 형질과 상편생장정도, 기공확산저항성, 부정근 발생 등의 제형질간에는 부의 상관관계가 있었다. Tomatoes are flooded differently 0, 5, 10 and 15 ㎝, according to the developing stages such as transplanting stage under the condition of green house. Along with this, they are treated according to the time condition such as 6, 12, 24, 48 and 120 hours. The results obtained are summarized as follows. As the depth of flooding got deeper and the hours got longer, plant height, number of leaves, shoot and root decreased significantly. Flowering was possible for 24 hours in the flooding of 0 ㎝, for 6 hours in 5∼10 ㎝, but not possible after 6 hours in 15 ㎝. Without regard to the depth of flooding, adventitious root came into being before or after 48 hours of the treatment. Root activity diminished gradually as hours of treatment went by, but diminished rapidly over the depth of 5 ㎝. Chlorophyll content decreased similarly as in the case of root activity. Diffusion resistance of stomata cell increased as hours of treatment passed and depth increased. Photosynthesis and respiration diminished according as the hours and depth of treatment increased. Respiration diminished a little gradually but photosynthesis weakened greatly as the depth of treatment became greater and after 48 hours of treatment. Diseases occurred remarkably in proportion to the depth of treatment and the increase of hours. The possibility of preventing by means of insecticide treatment showed the same tendency as in the seedling stage. But its effect was not significant. After 120 hours yields could not be expected because tomatoes died without regard to the depth of flooding. Instead of the depth, numbers of fruits per plant decrease of individuals or variation of average weight of a fruit was recognized. Especially average weight increased in accordance with the increase of the depth. There was positive correlation between all the characters, such as plant height, number of leaves, fresh weight, chlorophyll content, root activity and yield traits, but negative correlation between these and epinastic curvature, diffusion resistance and adventitious root.

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