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
      • SCOPUSSCIEKCI등재
      • 河東-山淸地域의 灰長岩質岩에 대한 變成作用에 관한 硏究

        鄭地崑,李商萬 충남대학교 1985 忠南科學硏究誌 Vol.12 No.2

        By the studies on the geologic structure, fabric, igneous and metamorphic minerals, and plagioclase twinning of Hadong-Sancheong anorthositic rocks, the metamorphic facies, intrusive age and metamorphic influences for the origin of the rocks are figured out. The anorthositic rocks are mono-metamorphosed and retrograded from epidote-amphibolite facies to greenschist facies. A transitional phase takes place between the above two facies. The metamorphism in anorthositic rocks is in accord with the third period of the retrograssive metamorphism having a multiple influence on the Sobaegsan Gneiss Complex intruded by the anorthositic rocks. The anorthositic rocks were metamorphosed from late Proterozic and that finished by the time of Jurassic, Daebo Orogeny, which is the same period as that of the so-called Julri Group. The anorthositic rocks are assumed to be intruded in the late Pre-Cambrian age and have no relation with the metamorphism in their origin.

      • 우리나라 지하수 이용 현황과 합리적인 관리방안

        정상만 公州大學校工科大學生産技術硏究所 1994 論文集 Vol.2 No.-

        본 연구의 목적은 지하수 이용 및 보전 방안 제시를 위한 기초 연구로서 지하수 이용을 위한 기초 조사, 지하수 관리를 위한 방안 검토, 지하수 보전 방안 등을 제시하는 것이다. 지하수 이용을 위한 기초 조사를 실시하여 지하수 관련 기초 자료의 수집과 이용 기법을 소개하고 지하수의 부존량과 이용 가능량을 추정하였다. 지하수의 합리적인 관리를 위해서는 지하수법의 제정·시행이 필요하며, 지하수법에 반드시 포함되어야 할 사항으로는 지하수의 소유 및 사용권의 소재, 법 집행을 위한 주무 기관의 설정, 지하수의 조사·개발·양수량·이용 한도 등의 제한, 오염 방지 대책, 법규 위반에 따른 벌칙 조항등이 있다. 여기서는 외국의 지하수 관련 법규를 위의 사항별로 비교하여 분석하였으며 우리나라 지하수법의 특징도 분석하였다. 지하수의 보전 방안으로 오염 방지 대책과 함양 방법을 검토하였다. 오염 방지 대책으로 지하수 오염의 특징, 오염원의 분류, 오염 방지 및 처리 방안을 모색하였으며 함양 방법으로는 주입법, 확수법, 지하댐 등을 중심으로 함양 사례를 제시하였다. 지하수의 보전과 수자원의 효율적인 이용 방안의 하나로 지표수와 지하수의 연계 이용을 제시였으며 장·단점을 분석하였다. The major purpose of this research is no evaluate the current groundwater use, management and conservation in Korea and is to present a proposal for the improvement for the use, management and conservation. Data collection and techniques for groundwater use have been introduced and the estimation of the volume and availability of groundwater have been conducted. Foreign groundwater laws have been analyzed and compared in tems of water ownerships, administrative systems, control through permits and regulations, groundwater quality protection, and violation of the law. In addition, the recently legislated Korean groundwater law has been analyzed and compared with the foreign groundwater laws. The principal sources and causes of groundwater pollution are introduced. Groundwater conservation techniques such as groundwater pollution protection, recharge methods have been suggested. In approaching full development of water resources, conjunctive use, which involves the coordinated and planned operation of both surface water and groundwater resources, has been suggested. Finally, the advantages and disadvantages, mostly economic, are summarized.

      • KCI등재

        모형을 이용한 미호천 유역의 하천수질 예측

        정상만,박정규,박영기,김이형 한국물환경학회 2004 한국물환경학회지 Vol.20 No.3

        The QUAL2E and Box-Jenkins time series model were applied to the Miho river, a main tributary of the Geum river, to predict water quality. The models are widely used to predict water quality in rivers and watersheds because of its accuracy. As results of the study, we concluded as follows: Pollutant loadings in upper stream of Miho river were determined to 57,811 ㎏BOD/d, 19,350 ㎏TN/d, and 5,013 ㎏TP/d. The loading of TN in Mushim river was 19,450 ㎏TN/d, respectively. As the mass loadings were compared with pollutant sources, it concluded that the farming livestock contributed highly to mass emissions of BOD and TP and the population contributed to TN mass loading. The observed water quality values were applied to the models to verify and the models were used to predict the water quality. The QUAL2E Model predicted the concentrations of DO, BOD, TN and TP with high accuracy, but not for E-Coli. The Box-Jenkins time series model also showed high prediction for DO, BOD and TN. However, the concentrations of TP and E-Coli were poorly predicted. The result shows that the QUAL2E model is more applicable in Miho basin for prediction of water quality compared to Box-Jenkins time series model.

      • AGV 용 서스펜션의 진동 모드에 관한연구 : 중력 가속도가 5G인 경우 A Case of Gravity Acceleration is 5G

        주만식,김민주,이승수,최영철,추정근,김중완,전언찬 한국공작기계학회 2000 한국공작기계학회 추계학술대회논문집 Vol.2000 No.-

        This study is to choose the most proper model for AGV throughout simulation of behavior of suspension to reduce trial and error because there is no AGV treating heavy weight at harbor loading and unloading at home. Therefore, we estimate the vibration modes of the various suspension applied to AGV, which is over 75 ton included the weight of two containers on 5G using the Matlab, one of the simulation programs

      • 폐결핵 환자의 우울 상태

        홍정표,최선희,조만종,이성주,박종,김기순,김양옥 朝鮮大學校 附設 醫學硏究所 1997 The Medical Journal of Chosun University Vol.22 No.1

        The main purpose of this study is to identify and evaluate the depressive states for the patients with chronic pulmonary tuberculosis. A questionnaire(Self-rating Depression Scale, SDS) survey was performed toward 57 pulmonary tuberculosis patients with initial treatment who started chemotherapy and 53 pulmonary tuberculosis patients with retreatment, admitted to one tuberculosis-centered hospital and two general hospital. Fifty three healthy persons as control group were investigated with the same questionnaire for comparison. The survey was performed from July to August 1996. The results are as follws : 1. The patients had significantly high scores in the depression than control and the patient with retreatment showed significantly high scores in the depression than the patient with initia1treatment(P<0.01). 2. The depressive levels of the patients were associated with duration of admission and the expectancy of recovery (P<0.05). 3. The percentage of the subjects with 40 or more scores tentatively classifiable as psychologically depressed was 67.1% of the total subjects, 48.4% of the control groups, 75.0% of the patient with initial treatment and 84.1% of the patient with retreatment. Because patient with pulmonary tuberculosis with initial treatment showed higher depression scores than normal persons, and patients with retreatment due to failure of initial treatment showed higher depression scores than initial treatment, it is necessary to give attention to depression of the patients during treatment of pulmonary tuberculosis.

      • KCI등재

        효소 단백 가수분해물의 항균 활성

        주정현,이상덕,이정옥,오만진,이기춘 충남대학교 농업과학연구소 2002 농업과학연구 Vol.29 No.2

        밀 단백질에 효소가수분해 할 때 생산되는 peptide의 항균활성과 천연항균제로서의 이용가능성을 검토하기 위하여 실험을 행하였다. 밀 단백질에 7종의 단백질가수분해효소를 작용시켜 생성된 가수분해물의 항균활성을 측정하고 한외여과, membrane filtration, HPLC를 이용하여 항균성peptide를 분리 정제한 후 분자량과 아미노산 결합 순서를 측정한 결과는 다음과 같다. 밀 단백질에 7종의 단백질 분해효소를 적용시켜 제조한 가수분해물중 Asp. saito protease를 적용시켜 얻어진 peptide 만이 항균활성을 나타내었다. Asp. saito protease는 37 ℃, pH 6.0에서 작용시킨 경우에 항균활성이 가장 높았으며, 50℃ 이상에서는 활성을 나타내지 않았다. 밀단백 효소가수분해물은 membrane filtration 에 의하여 분자량 1.000~3.000에서 항균활성이 나타났다. Membrane filtration으로 얻어진 항균활성분획을 HPLC로 분리한 결과 retention time 31.1~31.8 min에서 항균활성을 나타내었다. 밀단백 효소가수분해물은 121℃에서 15분간 가열하여도 효소활성이 유지되는 매우 안정한 화합물이었다. 항균활성분획을 MALDI-mass로 질량을 분석한 결과 1.633이었다. 항균성 peptide의 아미노산 결합순서는 cysteine, glycine, prolin, prolin, polin, valine, valine, alanine, alanine, arginine의 순서였다. This study was carried out to investigate whether peptide produced from wheat protein by enzyme hydrolysis can be used as a natural antimicrobial agent. Antimicrobial peptide was obtained form wheat protein by protease of 7 species. The produced antimicrobial peptide was purified through ultrafiltration membrane filtration and HPLC, and molecular weight and amino and sequence of the purified antimicrobial peptide were determined. Among hydrolysate produced from wheat protein by protease of 7 species, antimicrobial activity was observed for the peptide obtained from Asp. satio protease. The Asp. satio protease did production antimicrobial hydrolysate showing the highest antimicrobial activity at reaction condition of 37℃ and pH 6.0, but not at reaction condition above 50℃. Wheat protein hydrolysate was fractionated by membrane filtration and showed antimicrobial activity between molecular weight 1,000 - 3,000. The antimicrobial activity fraction obtained by membrane filtration was separated through HPLC and showed antimicrobial activity in the peak of retention time 31.1 - 31.8 min. Since after wheat protein protease hydrolysate was heated during 15 min at 121℃, antimicrobial activity was maintained we could be conviction as heat-stable peptide. Molecular weight of antimicrobial peptide identified by MALDI-mass was 1,633. Amino acid sequence of antimicrobial peptide was cysteine, glycine, prolin, prolin, prolin, valine, valine, alanine, alanine and arginine.

      • KCI등재
      • KCI등재후보

        감염된 가축과의 직접 접촉 없이 발생한 브루셀라증 환자1례와 축산 부산물 시장에서의 역학조사 : Sero-epidemiology Study on Market, by-product, Stock-raising

        정성주,김성범,박대원,정혜원,기세윤,권정아,박만석,박미연,정희진,김우주 대한감염학회 2004 감염과 화학요법 Vol.36 No.3

        브루셀라증은 전 세계적으로 발생하는 인수공통 전염병중에 하나로서, 본 증례는 국내에서 감염된 가축에 대한 노출력이 없는 집단에서 현증 브루셀라증이 발생한 첫 증례이기에 문헌 고찰과 함께 보고한다. 또한 환자가 근무하였던 축산물 부산물 시장에서 역학 조사를 실시하여, 현증환자 및 기감염자를 발견하여 축산물 부산물 시장 근무자에서 현증 브루셀라증이 발생할 위험성을 평가하였다. 역학 조사 결과 축산물 부산물을 다루는 일을 하는 사람들에서 감염된 가축과의 직접 접촉이 없이도 브루셀라증이 발생할 수 있음을 알 수 있었다. Brucellosis is a world-wide zoonotic disease. We report the first case of brucellosis in South Korea that is not related to direct contract with intected cattles. The patient had been working in the market of by-product, stock raising for twenty years and complained of 1-month history of fever, chill, and intermittent epistaxis. We confirmed brucellosis by anti-brucella antibody test and PCR. After 6 weeks' treatment with rifampicin and doxycycline, fever and chilling subsided, and, generalized weakness and oral intake improved. We performed seroepidemiology study against workers who were working in the same market as the patient. However, we couldn't find out other cases with seropositivity. We concluded that although the workers of by-product market have a risk of getting brucellosis, the risk is low.

      • 인터넷을 이용한 원격교육 코스웨어의 설계 및 구현

        오종만,이상정 순천향대학교 부설 산업기술연구소 1998 순천향 산업기술연구소논문집 Vol.4 No.1

        Presently, there are a lot of courseware and CAI programs, and they have used in elementary school. However, courseware which improves the learning capability of students has been developed rarely. Irrespective of time and space of learning, well developed courseware should ba able to communicate with a learner bidirectionally and to provide problem-solving capability. In this study, distance education theory and its educational effects are analyzed. And the courseware which communities with students on WWW environment is developed. The astronomical subjects, especially focusing on planets, is chosen for the content of the courseware. By applying this courseware to the students through internet, the courseware could realize bidirectional communications with distant education capability and the students could develop problem-solving capability.

      연관 검색어 추천

      이 검색어로 많이 본 자료

      활용도 높은 자료

      해외이동버튼