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
        • 등재정보
        • 학술지명
        • 주제분류
        • 발행연도
          펼치기
        • 작성언어
        • 저자
          펼치기

      오늘 본 자료

      • 오늘 본 자료가 없습니다.
      더보기
      • 무료
      • 기관 내 무료
      • 유료
      • Characteristics of the Aggregation Pattern of the Striped Rice Borer(Chilo suppressalis(Walker) during the Larval Stage

        유문일,이문홍,Ryoo, Mun-Il,Lee, Moon-Hong Korean Society of Applied Entomology 1985 한국식물보호학회지 Vol.24 No.1

        1973년부터 1976년까지 농촌진흥청 농업기술연구소 포장에서 수집된 성적(成績)을 분석(分析), 이화명나방유충(幼蟲)의 공간분포특성(空間分布特性)을 조사(調査)하였다. 유충(幼蟲)의 공간분포(空間分布)는 세대(世代)에 차이(差異)없이 부(負)의 이항분포(二項分布)를 따르고 있었다. 집중계수(集中係數)(Green's coefficient of dirpersion)를 지표로 하였을때 유충(幼蟲)의 집중도(集中度)는 초기고집중기(初期高集中期), 과도기(過渡期), 저집중안정기(低集中安定期)의 3 단계로 진전됨이 판명되었으며 이중 과도기(過渡期)를 제외(除外)한 각(各)단계는 각세대(各世代)에서 공통(共通) 'k'에 의해 집중도(集中度)를 정의할 수 있었다. 집중도(集中度)의 단계적 변화의 원인(原因)으로 유충(幼蟲)의 주간이동(株間移動)이 판명(判明)되었으며 제1세대에서 3령유충(齡幼蟲) 제2세대에서 5령유충(齡幼蟲)이 분산(分散)하는 것으로 나타났다. 유충집중도(幼蟲集中度)에 있어서의 이러한 특징(特徵)은 제2세대에서 뚜렷하였으며 제1세대의 경우 해(년(年))에 따른 변이폭이 컸다. 이는 제1세대 유충(幼蟲)의 생명계(生命系)(Life system)가 제2세대의 그것에 비해 외적(外的) 환경요인(環境要因)의 변이에 따라 크게 영향받고 있음을 시사하는 것으로 생각되며 Day-Degree 개념에 따른 환경변이의 수렴이 검토될 수 있을 것으로 사료(思料)된다. The data on the striped rice, borer populations, collected in the four years from 1973 to 1976, was reanalyzed to study the characteristics in the aggregation pattern of the insect larvae in the paddy fields. The distribution pattern of the larvae was well fitted to the negative binomial model in both the first and the second generation. With reference to the Green's coefficient of dispersion estimated, the aggregation of the larvae was categorized into three phases: initial high aggregation, changing, and dispersed stable phase. Except the changing phase, each phase in each generation could be defined by a common k. The phase-change was initiated by the larval dispersal between hills of the rice plants: the larvae of the third stage and those of the fifth stage, for the first and second generation, respectively. The characteristics of the aggregation pattern were stable in the second generation. In the first genaration, the pattern was more or less variable, indicating that the life system of the insect in the first generation was more susceptible to the variations of the external physical factors than that in the second generation.

      • 진주지방(晉州地方)에 있어서 끝동매미충 개체군(個體群)의 연중발생경과(年中發生經過)

        엄기백,이문홍,최궨문,박중수,UHM, KI-BAIK,LEE, MOO-HONG,Choi, Kui-Moon,PARK, JOONG-SOO 한국응용곤충학회 1986 한국식물보호학회지 Vol.24 No.4

        끝동매미충의 월동후부터 본답말기 까지의 밀도를 조사(調査)하여 발육경과(發育經過), 우화시기(羽化時期), 암성충의 성숙율등(成熟率等)을 조사(調査)하였다. 1. 끝동매미충은 주로 4령충으로 휴반잡초(雜草)에서 월동(越冬)하며 발육(發育)이 시작되면서 휴한답(독새풀)으로 이동(移動)하였다. 2. 월동성충(越冬成蟲)의 50%우화일(羽化日)은 '77년(年)이 4월(月) 8일(日) '78년(年)이 3월(月) 30일(日)이었다. 3. 월동성충(越冬成蟲)의 산란(産卵)은 4월(月) 하순(下旬)부터 5(月) 상순(上旬) 사이에 가장 많이 되었다. 4. 제1세대(第1世代) 성충(成蟲) 50% 우화일(羽化日)은 '77년(年)이 6월(月) 11일(日) '78년(年)이 6월(月) 10일(日)로 차이(差異)가 없었다. 5. 본답(本畓)에서는 2세대(世代)를 경과(經過)하였으며 연도간(年度間) 큰차(差)없이 안정(安定)되어 있었다. 6. 머리파리류(類)에 의한 기생율(寄生率)은 7월중순(月中旬)부터 8월중순(月中旬)사이에 가장 높았다. This study was carried out to investigate the seasonal occurrence of Green Rice Leafhopper(GLH), Nephotettix cincticeps Uhler population in the field at Jinju in $1977{\sim}1978$. GLH density was observed by suction catcher (D-Vac, 33cm in diameter) for overwintering population and by direct visual counting for paddy field population. GLH overwintered mainly as 4th-instar nymph in the levee and moved to the foxtail growing in the paddy with development after winter. The mean emergence date of adults, of the overwintered generation was on April 8 in 1977 and March 30 in 1978, and that of 1st generation was on June 11 in 1977 and June 10 in 1978. Adults of overwintered generation oviposited in foxtail from late April to early May. GLH occurred two generations in the paddy field and the population size in the paddy field was not greatly changed in two years.

      • KCI등재
      • KCI등재
      • KCI등재
      • KCI등재

        다공성 수산화인회석 혼합 골시멘트의 골내성장 효과

        권순용 ( Soon Yong Kwon ),김용식 ( Yong Sik Kim ),김기원 ( Ki Won Kim ),이화성 ( Hwa Sung Lee ),이문홍 ( Moon Hong Lee ),우영균 ( Young Kyun Woo ) 대한고관절학회 1996 Hip and Pelvis Vol.8 No.1

        The purpose of this study is to investigate the bone ingrowth effect of porous hydroxyapatite(HA) impregnated bone cement(polymethylmethacrylate, PMMA) through the histologic and biomechanical analysis. For this study, HA and PMMA were mixed in weight ratio 0:100, 10:90, 30:70, to make 0%, 10%, 30% mixture cylindrical rod shaped sample, sized about 4mm x 10mm. The halves of each sample as control were decalcified to make a comparative histologic and biomechanical analyses of bone ingrowth effect of HA impregnated PMMA. The histologic and biomechanical analyses in vitro and vivo were undertaken to evaluate the bone ingrowth effect of HA impregnated PMMA in several aspects to make a comparative analysis of the interfacial shear strength and a histologic analysis of HA impregnated PMMA in vivo. The comparative analysis of interfacial shear strength using hydraulically controlled machine(INSTRON) in vitro and histologic examination of HA impregnated PMMA in vivo were undertaken using each HA exposed samples(by grinding off and removing the surface coated PMMA) and those processed by surface decalcification, which were harvested from both sides of distal femurs of rabbit at 6 weeks after implantation, respectively. The following results were obtained; 1) In histologic observation using the hard tissue sectioning method with Villaneuva bone stain, there was peri-implant new bone formation in HA impregnated PMMA and more remakable in 30% samples, but an osseointegration into the HA was observed only in 30% sample. And in 10Po and 30% samples decalcifying off the surface HA, peri-implant new bone formation was observed also and more remakable in 30%. But there was no definite difference of bone ingrowth related periimplant new bone formation after and before decalcification about each 10% and 30% samples.

      • 韓國內 二化螟蛾의 地域的 發生相

        玄在善,李文弘 서울대학교 1975 서울대학교 論文集 Vol.25 No.-

        This study was intended to investigate the regional characteristics in the moth emergence of the rice stem borer, Chilo suppressalis (Walker), in Korea. The light trap data from 41 forecasting stations, excluding the two in Jejudo, for 7 years (1966-1972) were analyzed in relation to the dates of emergence and the total numbers of the moths caught during the years of 1966-1972. The results obtained were as follows; 1. The regions, where greater numbers of the moths were caught, were located between 35˚and 37˚N in the latitude and between 128˚ and 126˚E n the longitude. They are in the climatic regions of Southern plain, Western south coast, Middle southern mountainous areas and Middle plain. 2. The peaks of the moth emergence seemed to show considerable difference in the north of 36˚-37˚ on the latitude, where the mountainous range running from Chupungreong and Joreong, and 5-6 days were earlier in the north than in the south. 3. The mean squares of interactions between the year and the location were greater in the numbers of the moths caught than those in the peak emergence date and those in the peak emergence date for the first generations were greater than those for the second generation, showing the climatic conditions in early spring seemed to have greater effects on the development of the insects. 4. In the middle region, the overwintered larvae seemed to be rather sensitive to the change in environmental conditions, especially the increasing temperature in the spring and the dates of the first flight, of the 50% catch of the last flight were different significantly among the provinces and during the years (Table 9 and Table 10). 5. In the southern region, the overwintered larvae, however, seemed to be considerably stable to the change of the environmental conditions and significant differences were found among the provinces and the years. 6. In the summer moths, although the statues of the moth flight were different among the provinces and during the periods in general(Table 9), the dates of peak flight, showed greater difference in the middle than in southern region. 7. For the spring moths, analysis of variance for the location within a province in the middle region showed significant differences in the dates of first at alloccations, and those in Chungbuk and Chugnam showed difference in the date of peak. In the southern region, the difference was recognized only in the date of the peak flight for the years. 8. For summer moths, the status in the period of the moth flight was significantly different only for the years but not for the locations in the both regions. 9. The optimum numbers of the light traps with an accuracy of 10% of the mean for the date of the peak which was the very purpose to predict the optimum time of chemical control, were calculated from the mean squares, and seemed to be more than 80 for in the spring moths. Since, there seemed to be great variations in the dates of the peak flight in summer moth in relation to the provinces as well as the years(Table 9), it might be very important to have prediction equation for each province based on the development of the first brood larvae in relation to the environment conditions.

      • Microwave를 이용한 생약제 잔류농약의 추출방법에 관한 연구

        김은정,문귀임,이문홍,오현숙,최종동,정정순,안경아,김영림,장문익,김지연 식품의약품안전청 2001 식품의약품안전청 연보 Vol.5 No.-

        현행 생약의 잔류농약 허용기준 및 시험방법에 의한 잔류농약 추출방범은 다량의 유기용매의 사용과 더불어 추출시 장시간이 소요.되므로 다량의 시료를 분석하는 데는 비경꼭작 및 비효율적인 점 등이 지적되고 있다. 이에 본 연구에서는 기존 잔류농약 추출법에 비해 친환경적 · 경제적 장점이 있는 ndcrowave 에너지의 선택적 가열 추출 특성을 이용하여 추출조건을 예측, 그 가능성을 조사하였으며 현행 진랑 추출법과 추출효율을 비교 검로하였다. 수집한 당귀 등 10종의 생약재 중 농약잔류가 확인된 인삼(BHC, 9.6ppal)과 재배면적과 사용량이 비교적 높은 천궁을 모델시료로 선택하여 microwave 추출 최적조건을 예측한 결과 인삼의 경우 용매는 acetone 47.j~8o%, 츤출시간은 32~54.8초, 천궁의 경우 용매는 acetone 68.B~BOO%, 추출시간은 23.3~38.6초로 조사되었다. 인삼과 천궁의 추출조건을 바탕으로 생약재 잔류농약의 최적추출 조건을 예측한 결과 아세톤 농도 69~80%, 마이크로파 응량 (60w 이상), 추출시간 32~39초로 나타났다. 또한 예측회귀식의 신뢰성을 확인하기 위하여 예측된 추출 최적조건 임의최적점(ac티one/hexane75/2s(%), microwave power 100w, 추출시간 35초)을 선택하여 실제 추출실험을 실시 한 결과, 각 반응변수들의 예측값은 실제값과 유사하여 그 신뢰성이 확인되었다. 마지막으로 현행 진탕추출법과 microwave를 이용한 추출법의 추출효을을 비교 분석한 결과 용매 사용량, 추출시간, 회수율 면에서 microwave 추출법이 우수하였다. Much time and solvent was wasted for extraction of pesticide in natural medicines by the currently used analysis method(shaking method). In this study, microwave-assisted extraction(MAE), known as a more environmental, practical and economic in terms of less time, less solvent, less energy and less waste, was investigated to analysis of pesticide. Solvent ratio(acetone/hexane(%)), microwave power(W) and extraction time(sec.) were chosen as three factors, and the optimal conditions of pesticide extraction in ginseng(BHC was detected) and chungung(more use and cultivated and others) were determined by response surface methodology. The optimized conditions for pesticide extraction from ginseng and chungung were 45.5-80% acetone/hexane, 32-54.8 sec. extraction time and 68.8-100% acetone/hexane, 23.3-38.6 sec. extraction time, respectively. The predicted values at the optimum conditions(75% acetone/hexane, 100W microwave power and 35 sec. extraction time) were agree with experimental values. The results of optimal conditions of microwave-assisted extraction(MAE) were compared with the currently used method. The recoveries, extraction time and amount of solvent were significantly reduced in comparing with shaking method.

      연관 검색어 추천

      이 검색어로 많이 본 자료

      활용도 높은 자료

      해외이동버튼