• 제목/요약/키워드: 서수

검색결과 698건 처리시간 0.028초

근대 모성담론을 통해 본 한국가족정책의 방향 (The consideration of family policy through a discourse about modern motherhood)

  • 서수경
    • 대한가정학회지
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    • 제40권8호
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    • pp.137-152
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    • 2002
  • The purpose of this study is to analyse the discourses about modem motherhood in Western und Korean society in order to find a new basis for the family policy. The general view that motherhood is merely natural ceased to be valid since the early 1980ties. Nowadays one is rather inclined to define motherhood as a social, cultural and historical fact which goes far beyond the biological dimensions. The concept of motherhood which has been useful to fulfil the industralisation in the modem times cannot be applied to the changed world of our times. The family policy which is closely connected with women must not start from the modem motherhood ideology but from the context of the changed life of woman in our times. I hope that this study could contribute to stimulating the discourse about the family policy which takes into consideration the changed living conditions.

대한해협에서 분리한 초미세 녹조플랑크톤의 미세구조 (The Ultrastructure of the Chlorococcalean Picoplankton Isolated from the Western Channel of the Korea Strait)

  • 정익교;강윤향
    • 한국해양학회지
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    • 제30권6호
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    • pp.529-536
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    • 1995
  • 1994년 5월 대한해협 서수로 표층에서 초미세식물플랑크톤을 분리, 배양하였다. 0.2${\sim}$2.0 ${\mu}m$ 범위에서 여과분리 및 희석법으로 단일종으로 분리하여 f/2 배양액으로 배양하였다. 개체의 외형은 구형이었고 지름은 2 ${\mu}m$ 내외였으며, 배양된 개체군은 황록색을 보여주었다. 표면은 매끈하였고 세포벽으로 싸여진 세포에서 핵, 엽록체, 미토콘드리아, 골기체, 액포 등이 확인되었다. 분리된 종은 엽록소 a와 b를 갖는 색소 구성과 세포막, 틸라코이드막구성, 피레노이드 등을 포함하는 미세구조 특성으로 볼 때 녹조류에 속하는 클로렐라의 일종으로 보인다.

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군위댐 소수력발전기 시공 및 운영개선 사례 (An Example Of Gunwi-Dam Small Hydro Power's Improvement On Construction and Operation)

  • 정필승;서수상;민훈진;김창범
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2011년도 제42회 하계학술대회
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    • pp.1344-1345
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    • 2011
  • 경북 군위군 고로면에 위치한 저수용량 48,000천톤의 군위 다목적댐에 설치된 소수력발전기에 대한 설치공사 중 수차 설계도면 해석오류에 의한 Guide Vane(이하 G/V로 함.) 과다개방으로 인한 설비고장 및 개선사례, 년 중 댐 수위 변동을 감안한 정격수위와 저수위 시의 수차효율 시험을 통한 댐 수위별 최적의 발전설비 운영방안을 검토하여 저탄소 녹색에너지원인 군위다목적댐 소수력의 발전수익 증대를 도모하였다.

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Andaspis 속(노린재목: 깍지벌레과)의 한국미기록 2종에 대한 보고 (Two New Records of Andaspis Armored Scales (Hemiptera: Diaspididae) from Korea)

  • 서수정
    • 한국응용곤충학회지
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    • 제50권1호
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    • pp.75-77
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    • 2011
  • Andaspis속의 Andaspis crawii (Cockerell)와 Andaspis kashicola (Takahashi) 2종을 처음으로 국내분포로 보고하고, 한국산 Andaspis속의 종 동정에 필요한 검색표, 사진자료, 분포 및 기주 정보를 함께 기재하였다.

한국산 꼬리가루깍지벌레속의 재정리 (노린재목: 가루깍지벌레과) (Notes on Antonina Mealybug of Korea (Hemiptera: Pseudococcidae))

  • 이용현;서수정
    • 한국응용곤충학회지
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    • 제50권1호
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    • pp.71-73
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    • 2011
  • 한국의 대나무류에 다리가 퇴화한 꼬리가루깍지벌레속의 Antonina nakaharai Williams and Miller 대나무꼬리가루깍지벌레(신칭)가 발생함을 확인하고, 한반도에 분포하는 꼬리가루깍지벌레속 3종 동정에 필요한 검색표를 함께 정리하였다.

Pyrolysis-Gas Chromatography를 이용한 가황 고무의 열분석에 관한 연구(II) (NBR, CR 및 EPDM 가황체) (Studies on analysis of Rubber Vulcanizates by Pyrolysis-Gas Chromatography (II) (NBR, CR, and EPDM Vulcanizates))

  • 허동섭;김종석;김경자;안병국;서수교
    • Elastomers and Composites
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    • 제22권4호
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    • pp.314-323
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    • 1987
  • A blend ratio of rubber vulcanzates comprising NBR, CR, EPDM, NR, BR, and SBR alone or blended is determind through a P.G.C. It is found that a characteristic peak of elastomer is proportional to the content of each elastomer when they are pyrolysed. It is also classified to the different AN content in NBR vulcanizates, identification of sulfur-modified and non-sulfur bearing CR polymers, and the content of ethylene, propylene monomer and the third monomer in EPDM vulcanizetes.

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소아(小兒) 야뇨증(夜尿症)의 치료(治療)에 관한 임상적(臨床的) 고찰(考察) (The Clinical study of Nocturnal Enurosis)

  • 이경환;서수환;김행진;김용성
    • 대한한방내과학회지
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    • 제25권1호
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    • pp.126-131
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    • 2004
  • Between February 2002 and June 2003, A clinical study on Noctural Enurosis Patients had been conducted by the Department of Internal medicine at Dongshin University Oriental hospital. In this study, we treated nine patients with ear acupuncture using seed of Allium tuberosum ROTTLER and Herbal medicine. And we got the efficacious results. Moreover, the patients who were treated for more than 20days show more efficient result.

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다목적 바닥 레벨조인트 공법의 개발 및 성능평가에 관한 연구 (Development and Performance Evaluation of Floor Level Joint System)

  • 최윤철;서수연;지남용;이리형
    • 한국콘크리트학회:학술대회논문집
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    • 한국콘크리트학회 2002년도 봄 학술발표회 논문집
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    • pp.953-958
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    • 2002
  • The finishing method of concrete floor using automatic surface finisher is one of new technologies in concrete floor construction. The development of high technologies in construction will increase in order to satisfy the demand to construct high quality building. Using this method, it is possible to increase the quality of building as well as to reduce the labor work in site. In this paper, a system which can be used to finish the concrete floor using automatic surface finisher, is presented and its structural capacities are evaluated. The system is composed of rail which guides the surface vibrator and absorbs the volume change of concrete, and a device supporting the rail. From the experimental work for these devices, it was shown that the support and rail had suitable strength to resist the automatic surface finisher. For design purpose, also, effective span of supports was tabulated.

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콘크리트와 탄소섬유메쉬의 부착파괴 거동에 관한 실험적 연구 (An Experimental Study on the Bond Failure Behavior between Parent Concrete and CFM)

  • 오재혁;성수용;한병찬;윤현도;서수연;김태용
    • 한국콘크리트학회:학술대회논문집
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    • 한국콘크리트학회 2002년도 봄 학술발표회 논문집
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    • pp.965-970
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    • 2002
  • The strengthening of concrete structures in situ with externally bonded carbon fiber is increasingly being used for repair and rehabilitation of existing structures. Carbon fiber is attractive for this application due to its good tensile strength, resistances to corrosion, and low weight. Generally bond strength and behavior between concrete and carbon fiber mesh(CFM) is very important, because of the enhanced bond of CFM. Therefore if bond strength is sufficient, it will be expected to enhance reinforcement effect. If insufficient, reinforcement effect can not be enhanced because of bond failure between concrete and CFM. This study is to investigate the bond strength of CFM to the concrete using direct pull-out test and tensile-shear test. The key variables of the experiment are the location of clip, number of clips and thickness of cover mortar. The general results indicate that the clip anchorage technique for increasing bond strength with CFM appear to be effective to maintain the good post-failure behavior.

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