• 제목/요약/키워드: Cha-cheon

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치료방사선 선량보증 현황

  • 임천일;차선희;손혜경;이병영;박기정;오헌진
    • 대한방사선방어학회:학술대회논문집
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    • 대한방사선방어학회 2009년도 춘계 학술발표
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    • pp.170-171
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    • 2009
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한방 치료와 자하거약침을 병행하여 치료한 극상근건염 및 삼각근하 점액낭염 환자 4례 증례보고 (The Clinical Observation of Oriental Medicine Treatment and Hominis placenta Pharmacopuncture in 4 Cases of Supraspinatus Tendinosis and Subdeltoid Bursitis)

  • 김민영;최영일;최희승;정윤규;추원정;이차로;남항우
    • 대한한의정보학회지
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    • 제17권2호
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    • pp.1-15
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    • 2011
  • 극상근건염 및 삼각근하 점액낭염으로 견관절의 통증과 이학적 검사 양성반응 및 ROM 제한을 호소하는 환자 4례에 대하여 한방 치료와 자하거약침 치료를 병행하였으며 그 결과 통증의 감소, 이학적 검사 소견의 개선 및 ROM 호전을 확인하였다.

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응결촉진제 종류 및 치환율 변화에 따른 저시멘트 모르타르의 공학적 특성 (Engineering Properties of Low Cement Mortar with type and Various Incorporating Ratios of Setting Accelerator)

  • 조만기;한상윤;차천수;박용규;윤기원;한천구
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2015년도 추계 학술논문 발표대회
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    • pp.143-144
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    • 2015
  • In this research it was attempted to analyze the general engineering properties of low cement mortar according to the type of setting accelerator and substitution rate, when 1% substitution rate for setting accelerator was used a high rate of compressive strength manifestation was shown and that the WS-10 type setting accelerator was appropriate. For the rate of change of length, when 3% substitution rate for setting accelerator was used, it was shown that due to initial expansion the shrinkage compensation was not significant, and when taking into consideration strength and shrinkage, 1% of WS-10 was shown to be appropriate.

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저미분 폐내화물 종류 및 혼입율 변화에 따른 혼화재 다량치환 모르타르의 공학적 특성 (High Volume Mineral Admixture Mortar According to Waste Refractory and Mixing Ratio)

  • 한상윤;박도영;차천수;김현우;윤기원;한천구
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2015년도 추계 학술논문 발표대회
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    • pp.134-135
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    • 2015
  • This study analysed compressive strength and the expansion characteristic to utilize a high volume mineral admixture mortar for a aerated mortar and a plastering mortar. In this experiment, the result shows that the compressive strength gain was satisfactory in case that WR was replaced within 5%. Also, the difference between WR1 and WR was insignificant. It shows that the drying shringkage properties at large was showed being satisfactory generally compared with Plain when WR was replaced, but the effect was not significant.

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W/B 및 유동성 변화에 따른 시멘트 킬른더스트 혼입 콘크리트의 공학적 특성 (Engineering Properties of Concrete Incorporating Cement Kiln Dust with W/B and Fluidity)

  • 주은희;손명수;차천수;한민철;한천구
    • 한국콘크리트학회:학술대회논문집
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    • 한국콘크리트학회 2004년도 춘계 학술발표회 제16권1호
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    • pp.628-631
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    • 2004
  • In this paper, mechanical properties of concrete incorporating CKD are discussed with W/B and fluidity. For setting properties, an increase in W/B retarded setting time greatly in $5^{\circ}C$, while accelerated in $20^{\circ}C$. For fluidity, an increase in slump delayed the setting time with dosage of SP agent. The presence of CKD has little influence on setting time compared with plain concrete. For compressive strength, an increase in maturity enhanced compressive strength. Fluidity had no relation to compressive strength. At low curing temperature, concrete with CKD has slight strength loss compared with plain concrete. However, remarkable strength loss at low curing temperature in early stage was not found, which can be applicable to low temperature environment concrete placing.

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