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
        • 원문제공처
          펼치기
        • 등재정보
          펼치기
        • 학술지명
          펼치기
        • 주제분류
          펼치기
        • 발행연도
          펼치기
        • 작성언어

      오늘 본 자료

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

        茶山의 文學思想

        李基潤 陸軍士官學校 1981 한국군사학논집 Vol.21 No.-

        We knew Dasan(茶山) as a philosopher of Silhak(實學). In this paper, I want to find out his views on the literature of his lifetime. In recent years, such view points are seen on other studies of Dasan. The theory of korean literature starts from the establishment of the old Koream's literary thoughts, and for the establishment, as we know, it will be possible to pr-ocede the study of the personal literary thoughts. We can find his literary view points in Munchecheck(文體策) and Ohhakron(五學論). In Munchecheck, he insisted that literature at first shows “Do(道)” for the peo-ple. This means a method which practices the Kyungsaechiyong(經世致用) and Riyonghuseng(利用厚生). In Ohhakron,, he insisted literature be fitted for the ethics and Current Consciousness. The more important view points in Ohhakron is not the imitation of Chinese lierature, but finding out the national literature. SO he acclaimed for the “Poem of Chosun(朝鮮詩)”. He also insisted the real literature be based on the experience in his other works. Such view points in his literary theory looks like Confucian literature, but flows his own revolutionary thoughts in his works.

      • 경질폴리우레탄 폼의 반응 발포 메카니즘의 수치모사

        이기윤 충남대학교 산업기술연구소 2001 산업기술연구논문집 Vol.16 No.1

        경질 폴리우레탄 폼은 산업현장에서 생산하는 최상의 단열성능을 가지고 있는 단열재이며, 발포압력, 발포온도, 몰드의 종류, 몰드의 기학학적 형태, 폴리올, 발포제, 첨가제 등은 폼의 물성에 영향을 준다. 본 연구에서는 polyether polyol, MDI, 실리콘 유화제, 핵제를 기본 폴리우레탄 조성으로 설정하였으며, 반응 온도에 따라서 경질 폴리우레탄 폼의 반응메카니즘을 관찰하고 수치모사한 값을 비교 관찰하였다. 발포제로는 시클로펜탄을 사용하여 경질 폴리우레탄을 발포하였으며, 상온, 상압에서 핸드 믹싱으로 5000±50 rpm, 4 sec의 범위 안에서 혼합시킨 뒤에, 100×100×100mm내의 단열 몰드 안에서 발포 실험을 하였다. 촉매양의 변화에 따라 폴리우레탄 경질 폼의 반응 메카니즘에 지대한 영향을 나타내는 것을 확인하였다.

      • KCI등재

        윤동주 시의 사회문화적 접근

        이기윤 한중인문학회 2007 한중인문학연구 Vol.22 No.-

        이 논문은 사회문화적인 연구방법을 원용하여 윤동주의 시의식의 원천을 탐구함으로써 그 문학의 실체를 밝히는 데 목적이 있다. 그것을 달성하기 위해 우선 재만 조선인의 사회문화적 특성을 살펴 윤동주가 성장하고 교육받은 토양이 어떤 것인가를 탐구하고, 거기서 더 나아가 북간도 이주민의 특성과 기독교와 한글 교육이 갖는 의미를 고찰하였다. 다음에는 그것과 관련지어 그의 초기 작품인 <초 한 대>와 <삶과 죽음>을 대상으로 기독교 의식과 시정신이 갖는 관련성을 구체적으로 분석하였다. 그 결과 그의 시 의식의 근간을 이루고 있는 속죄양의식, 순결에의 의지, 수난의식 등 기독교 체험의 산물이 초기 시에서부터 나타난 것이며, 시 의미의 다층성과 의식의 혼란상도 동시에 드러난다는 사실을 밝혔다. 그리고 이러한 시적 특성은 그의 문학세계가 전개되는 과정에서도 지속적으로 반복해서 드러난다는 사실도 함께 도출하였다. 이러한 성과는 윤동주의 문학을 사회문화적 차원에서 구체적인 자료에 입각해 실증적으로 분석했다는 점에서 의의를 찾을 수 있으며, 보다 면밀한 자료 수집과 심도 있는 작품 분석이 더해진다면 앞으로 전개될 새로운 연구 방향의 하나가 될 것이다. This study is on the poems of Yoon, Dong-Joo. And the methodology of this study is a Socio-Cultural Approach. This methodology is concern on the historical nature and sociality of men. Therfore on the assumption this methodology, this paper makes an analysis of religious experience and consciousness confusion in his poems, [A Candlelight] and [Life and Death]. As the result, this two poems are under the influences of the Christian religion and socio-cultural ideology that is caused the histories of Buk Gan Do. In his poems, Christian religion playes an important part of the frame of orientation. Neverthless, because of the chaos of ideology that controls society of Buk Gan Do, the confusing of consciousness in his poems comes out. But this appearances have meaning of consciousness of expiate and suffering that will be appeared in his poems of late period.

      • KCI등재

        방사선 방어시설 구축 시 활용 가능한 관전압별 납 시트 차폐율 성능평가 및 실측 검증

        이기윤,정경환,한동희,김장오,한만석,길종원,백철하 한국방사선학회 2023 한국방사선학회 논문지 Vol.17 No.4

        Radiation shielding facilities are constructed in locations where diagnostic radiation generators are installed, with the aim of preventing exposure for patients and radiation workers. The purpose of this study is seek to compare and validate the trend of attenuation thickness of lead, the primary material in these radiation shielding facilities, at different maximum tube voltages by Monte Carlo simulations and measurement. We employed the Monte Carlo N-Particle 6 simulation code. Within this simulation, we set a lead shielding arrangement, where the distance between the source and the lead sheet was set at 100 cm and the field of view was set at 10 × 10 cm². Additionally, we varied the tube voltages to encompass 80, 100, 120, and 140 kVp. We calculated energy spectra for each respective tube voltage and applied them in the simulations. Lead thicknesses corresponding to attenuation rates of 50, 70, 90, and 95% were determined for tube voltages of 80, 100, 120, and 140 kVp. For 80 kVp, the calculated thicknesses for these attenuation rates were 0.03, 0.08, 0.21, and 0.33 mm, respectively. For 100 kVp, the values were 0.05, 0.12, 0.30, and 0.50 mm. Similarly, for 120 kVp, they were 0.06, 0.14, 0.38, and 0.56 mm. Lastly, at 140 kVp, the corresponding thicknesses were 0.08, 0.16, 0.42, and 0.61 mm. Measurements were conducted to validate the calculated lead thicknesses. The radiation generator employed was the GE Healthcare Discovery XR 656, and the dosimeter used was the IBA MagicMax. The experimental results showed that at 80 kVp, the attenuation rates for different thicknesses were 43.56, 70.33, 89.85, and 93.05%, respectively. Similarly, at 100 kVp, the rates were 52.49, 72.26, 86.31, and 92.17%. For 120 kVp, the attenuation rates were 48.26, 71.18, 87.30, and 91.56%. Lastly, at 140 kVp, they were measured 50.45, 68.75, 89.95, and 91.65%. Upon comparing the simulation and experimental results, it was confirmed that the differences between the two values were within an average of approximately 3%. These research findings serve to validate the reliability of Monte Carlo simulations and could be employed as fundamental data for future radiation shielding facility construction.

      • KCI등재
      • KCI등재
      • KCI등재

        3기 직장암 환자에서 림프절 피막 침윤이 예후에 미치는 영향

        이기윤,신진용,오상훈,홍관희 대한대장항문학회 2009 Annals of Coloproctolgy Vol.25 No.3

        Purpose: Extracapsular invasion (ECI) of nodal metastasis is reported to be a prognosticator of colorectal cancer. However, limited knowledge exists about the prognostic value of ECI in stage III rectal cancer. Methods: From January 1996 to June 2004, 202 stage III rectal cancer patients who underwent surgery were enrolled in this study. The patients were divided into two groups according to ECI (patients with ECI, ECIP, n=122; patients without ECI, ECIN, n=80). The potential prognostic factors were compared in a Cox model. Results: Of 916 positive nodes examined, ECI was seen in 46.7% of the positive nodes. The univariate comparison between the two groups revealed the five-year results after a median follow-up of 48.0 mo. The local control rate of ECIP did not show a significant difference from that of ECIN (77.0% vs. 85.4%, P=0.550). The disease-free survival rate and the overall survival rate differed for the two groups, with rates of 44.1% and 50.0% for ECIP and 70.4% and 63.2% for ECIN (P<0.001, P=0.049, respectively). The impact of ECI on the disease-free survival was confirmed in a Cox model. In a subgroup analysis, no significant differences in the recurrence and the survival rates were seen between the N1 ECIP and the N2 ECIN subgroups. Conclusion: Although ECI is not a risk factor for survival and local relapse, ECI is a prognosticator of overall recurrence. Based on these findings, more aggressive adjuvant treatment seems to be needed for decreasing the overall recurrence in stage III rectal cancer with ECI. Purpose: Extracapsular invasion (ECI) of nodal metastasis is reported to be a prognosticator of colorectal cancer. However, limited knowledge exists about the prognostic value of ECI in stage III rectal cancer. Methods: From January 1996 to June 2004, 202 stage III rectal cancer patients who underwent surgery were enrolled in this study. The patients were divided into two groups according to ECI (patients with ECI, ECIP, n=122; patients without ECI, ECIN, n=80). The potential prognostic factors were compared in a Cox model. Results: Of 916 positive nodes examined, ECI was seen in 46.7% of the positive nodes. The univariate comparison between the two groups revealed the five-year results after a median follow-up of 48.0 mo. The local control rate of ECIP did not show a significant difference from that of ECIN (77.0% vs. 85.4%, P=0.550). The disease-free survival rate and the overall survival rate differed for the two groups, with rates of 44.1% and 50.0% for ECIP and 70.4% and 63.2% for ECIN (P<0.001, P=0.049, respectively). The impact of ECI on the disease-free survival was confirmed in a Cox model. In a subgroup analysis, no significant differences in the recurrence and the survival rates were seen between the N1 ECIP and the N2 ECIN subgroups. Conclusion: Although ECI is not a risk factor for survival and local relapse, ECI is a prognosticator of overall recurrence. Based on these findings, more aggressive adjuvant treatment seems to be needed for decreasing the overall recurrence in stage III rectal cancer with ECI.

      연관 검색어 추천

      이 검색어로 많이 본 자료

      활용도 높은 자료

      해외이동버튼