RISS 학술연구정보서비스

검색
다국어 입력

http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.

변환된 중국어를 복사하여 사용하시면 됩니다.

예시)
  • 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
  • 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
닫기
    인기검색어 순위 펼치기

    RISS 인기검색어

      검색결과 좁혀 보기

      선택해제
      • 좁혀본 항목 보기순서

        • 원문유무
        • 음성지원유무
        • 원문제공처
          펼치기
        • 등재정보
          펼치기
        • 학술지명
          펼치기
        • 주제분류
          펼치기
        • 발행연도
          펼치기
        • 작성언어
        • 저자
          펼치기

      오늘 본 자료

      • 오늘 본 자료가 없습니다.
      더보기
      • 무료
      • 기관 내 무료
      • 유료
      • KCI등재

        폐유육종증의 방사선학적소견 : 단순흉부촬영과 고해상전산화단층촬영의 비교

        김유경 대한영상의학회 1998 대한영상의학회지 Vol.39 No.1

        Purpose : To analyse the radiographic and HRCT findings of pulmonary sarcoidosis and to evaluate the diagnostic usefulness of HRCT Materials and Methods : Initial chest radiographs (n=14) and HRCT scans (n=14), and a follow up HRCT scan (n=1) from 14 patients (5 men and 9 women; median age, 38 Years) with biopsy proven pulmonary sarcoidosis were analyzed. Results : On initial chest radiographs, they showed pulmonary lesions were seen predominantly in the middle, upper and lower lung zones in four, two and one patient, respectively. Patterns of lesions were reticulonodular opacities (n=4), air-space (n=2), honeycombing(n=1), macronodule(n=1), and cavitary nodule (n=1). In all patients, HRCT scans demonstrated both pulmonary lesions and intrathoracic lymphadenopathy. Pulmonary lesions were seen predominantly in the middle, lower and upper lung zones in nine, three and two patients, and in the posterior and anterior lung zones in eight and four patients repectively. Lesions were predominantly micronodules, with perilymphatic distribution (n=12), macronodules with air-bronchogram (n=1), cavitary macronodules (n=1), ground-glass opacity (n=5), consolidation (n=2), and irregular lines (n=8).Conclusion : Reticulonodular lesions in the middle lung zone were seen on radiograph, while the most common HRCT finding was micronodular lesions with perilymhpatic distribution. HRCT is much more sensitive than chest radiograph for the detection of both pulmonary lesions and lymphadenopathy; this modality revealed micronodules which were invisible on chest radiographs.

      • KCI등재

        선천성 항문직장기형의 MRI소견

        김유경 대한영상의학회 1995 대한영상의학회지 Vol.32 No.5

        Purpose: To assess the usefulness of MRI in preoperative diagnosis of congenital anorectal malformationMaterials and Methods: MR findings of 11 cases with surgically proved anorectal malformations were retrospectivelyreviewed and compared with operative findings, according to the level of atresia, the development of sphinctermuscle, fistula and associated anomalies of other organs. Results: Four of 11 cases were low type of anorectalatresia, 3 cases were intermediate type, and 3 cases were high type. There was one case of Currarino triad withlow type of anorectal stenosis. MRI demonstrated the levels of atresia correctly in all cases and revealedfistulas in all high type of anomalies. Degrees of the development of the sphincter muscles were good in all casesof low types and fair in a case of intermediate type and an anorectal stenosis, whereas the development was poorin 2 cases of intermediate type and all 4 cases of high type. The associated anomalies in anorectal malformationwere renal agenesis, congenital hip dysplasia and sacral defect with presacral teratoma in Currarino triad.Conclusion: MRI was a simple and useful study to confirm the level of atresia, fistula and associated anomalies inthe diagnosis of the congenital anorectal malformation.

      • KCI등재

        Ambulatory Blood Pressure Monitoring and Blood Pressure Load in Obese Children

        김유경,김희운,송진영 대한심장학회 2009 Korean Circulation Journal Vol.39 No.11

        Background and Objectives: This study was aimed at evaluating the significance of blood pressure (BP) load in ambulatory blood pressure monitoring (ABPM) in obese children and adolescents. Subjects and Methods: ABPM was conducted for 60 selected patients who had visited Sunlin Hospital between January 2008 and August 2008. Patients were classified into 3 groups; an obese group whose body mass index (BMI) was > the 95th percentile, an overweight group whose BMI was > the 85th percentile but less than the 95th percentile, and a normal group whose BMI was below the 85th percentile. Overall mean BP, day and night BP and BP load were measured by ABPM. Results: Of the 60 patients, twenty-seven children belonged to the obese group, 9 and 24 to the overweight and the normal group, respectively. Among the three groups, the overall average systolic and diastolic BP, daytime diastolic BP, and systolic BP loads in daytime and nighttime were statistically different. Comparing the obese group with the normal group, systolic BP loads in daytime and nighttime in the obese group were significantly higher than those in the normal group. Also, the obese group had more patients whose BP loads were over 25% greater than the normal group while the difference in the number of patients with overall hypertension was not significantly different. Conclusion: Assessment of children’s BP through assessment of BP load is a more detailed and precise tool than assessment through mean BP using ABPM and BP can be better controlled using measurement of BP load. Background and Objectives: This study was aimed at evaluating the significance of blood pressure (BP) load in ambulatory blood pressure monitoring (ABPM) in obese children and adolescents. Subjects and Methods: ABPM was conducted for 60 selected patients who had visited Sunlin Hospital between January 2008 and August 2008. Patients were classified into 3 groups; an obese group whose body mass index (BMI) was > the 95th percentile, an overweight group whose BMI was > the 85th percentile but less than the 95th percentile, and a normal group whose BMI was below the 85th percentile. Overall mean BP, day and night BP and BP load were measured by ABPM. Results: Of the 60 patients, twenty-seven children belonged to the obese group, 9 and 24 to the overweight and the normal group, respectively. Among the three groups, the overall average systolic and diastolic BP, daytime diastolic BP, and systolic BP loads in daytime and nighttime were statistically different. Comparing the obese group with the normal group, systolic BP loads in daytime and nighttime in the obese group were significantly higher than those in the normal group. Also, the obese group had more patients whose BP loads were over 25% greater than the normal group while the difference in the number of patients with overall hypertension was not significantly different. Conclusion: Assessment of children’s BP through assessment of BP load is a more detailed and precise tool than assessment through mean BP using ABPM and BP can be better controlled using measurement of BP load.

      • KCI등재

        감염병 팬데믹 상황에서 항공 여행에 대한 위험지각이 항공사 선택속성과 만족에 미치는 영향

        김유경 (사)한국관광레저학회 2023 관광레저연구 Vol.35 No.-

        This study investigated the effect of risk perception on airline selection attributes and satisfaction in an infectious disease pandemic situation. As a result of the study, it was all adopted that risk perception for air travel would affect airline selection attributes. Among them, social and psychological risks had a negative (-) effect on airline selection attributes. H2. It was partially adopted that airline selection attributes would affect satisfaction. Infectious disease prevention measures, flight services, and economic feasibility affected satisfaction, but in-flight services did not affect satisfaction. The implications are as follows. In order to reduce the risk of infectious disease transmission, it will be necessary to provide in-flight meals in the form of a snack box that is packaged in-flight food and beverage. In order to reduce time and economic risk, it will be necessary to exempt or reduce fees when customers change or refund their flights due to uncertainties in the spread of infectious diseases. A back-to-front by-row boarding method will be needed to relieve congestion during boarding and doing during preventive measures for infectious diseases.

      • KCI등재

        윤작이 감자 수량, 토양 화학성 및 미생물 활성에 미치는 영향

        김유경,강호준,양상호,오한준,이신찬,강성근,김형신,Kim, Yu-Kyoung,Kang, Ho-Jun,Yang, Sang-Ho,Oh, Han-Jun,Lee, Shin-Chan,Kang, Seong-Keun,Kim, Hyoung-Sin 한국유기농업학회 2012 韓國有機農業學會誌 Vol.20 No.4

        The objective of this study was to determine crop rotation effects on potato yield, soil chemical and microbiological properties from a short-term field experiment from 2010 to 2011 in Jeju Island, Korea. Potato cropping systems included continuous and rotation sequences of soybean (Glycine max(L.) Merr.), barley (Hordeum vulgare var. hexastichon), rapeseed (Brassica napus L.) and broccoli (Brassica oleracea var. italica). Crop rotations increased the yields of potato from 31% to 52% compared with continuous potato. Marketable yield of potato was highest under soybean plus rapeseed rotation by $20.97MT\;ha^{-1}$ and lowest under continuous cropping by $11.95MT\;ha^{-1}$. The incidence and severity of scab disease was significantly lower in tubers from crop rotation with soybean plus barley. Differences in marketable tuber yields among rotations were associated with potato scab disease. Especially, incidence and severity of potato scab were strongly correlated with soil pH, exchangeable calcium, and bacteria population of the soil. Crop rotations significantly increased soil pH, available phosphate, exchangeable K and Ca, especially in crop rotations with soybean plus barley or rapeseed. Soil microbial biomass C of crop rotations with soybean plus barley or rapeseed, was also significantly higher compared with monoculture. In conclusion, crop rotation may decrease the incidence of soil-born pathogen by increasing soil chemical properties and soil microbial biomass. Overall, potato crop productivity was generally maintained in rotations that contained soybean plus barley or rapeseed but declined under continuous cropping system. 본 시험은 윤작처리가 감자의 상품수량과 토양 화학성 및 미생물 활성에 미치는 영향을 평가하고 알맞은 작부체계를 확립하기 위하여 시험을 수행하였다. 작부체계내 콩과 보리를 도입하여 2년 2기작으로 감자를 윤작하였을 경우 총수량과 상품수량은 대조구인 연작구 대비 각각 31% 및 53% 정도 증가하였으며, 콩과 유채를 도입하여 2년 2기작으로 감자를 윤작하였을 경우 총수량과 상품수량은 각각 57% 및 75% 정도 증가하였다. 그리고 감자의 상품수량에 미치는 요인간 상관관계를 분석한 결과 상품수량은 토양미생물 활성, 특히 Biomass C 및 세균 밀도가 높을수록 증가하였고, 토양 pH, 유효인산, 치환성 칼슘함량이 높을수록 세균 밀도가 증가하였다. 따라서 윤작을 통해서 토양 화학성을 개량하고 미생물 밀도 및 활성을 증가시키면, 토양병 발생을 억제하고 감자의 생산성을 높일 수 있을 것으로 판단된다.

      • Efficient Preparation of 3D Layered Multicomponent Nanohybrids Consisting of Graphene, Molybdenum Disulfide Sheets and Polyaniline

        김유경,노선명,윤현석 한국고분자학회 2021 한국고분자학회 학술대회 연구논문 초록집 Vol.46 No.2

        In this study, 3D layered multicomponent nanohybrids were successfully prepared with the combinations of graphene, molybdenum disulfide (MoS2), and polyaniline (PANI). This process is a straightforward physical exfoliation method because any special, sophisticated chemical treatment was unnecessary. PANI contributed to the stability of the colloidal dispersion of the exfoliated graphene and MoS2 sheets in the solvent medium. Graphene/MoS2/PANI-solution nanohybrids, namely GMPNs exhibited a unique 3D layered structure and each layer affected each other, which resulted in unique electrical/electrochemical properties. In particular, GMPNs had an open porous structure that provided effective pathways for promoting redox reactions with electrolyte ions on the inner surfaces. Of the GMPN samples, the nanohybrid with a G:M:P weight ratio of 1:1:80 exhibited the excellent electrochemical properties and good long term cycling stability in acid and neutral solution.

      연관 검색어 추천

      이 검색어로 많이 본 자료

      활용도 높은 자료

      해외이동버튼