• 제목/요약/키워드: 03-03

검색결과 11,389건 처리시간 0.038초

산패유를 이용한 느타리버섯 균사체의 생산 (Production of Pleurotus spp. Mycelium Using Rancid Frying Oils)

  • 정기태;주인옥
    • KSBB Journal
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    • 제11권5호
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    • pp.572-576
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    • 1996
  • Conditions for the culture of Pleurotus spp. mycelium using rancid frying oils were investigated. Among the six strains tested, Pleurotus ostreatus CBS 03 showed the greatest mycelial growth on fish paste and ramyon frying oil, and was used in this study. The optimum temperature and pH for mycelial growth were from 25 to $30^{\circ}C$ and pH 5.5 to 6.0, respectively. Tryptone for mycelial growth was better than any other nitrogen sources. The addition of $KH_2PO_4 and MgSO_4$ enhanced mycelial growth at 0.2 and 0.01% on fish frying oil, and at 0.1 and 0.03% on ramyon frying oil. Among the vitamins used, thiamine and nicotinic acid were the most effective ones.

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요동이 있는 밀폐용기내 낮은 Pr 액체의 자연대류에 관한 수치적 연구 (A numerical study of natural convection for low Pr liquids in enclosures with rocking)

  • 모정하
    • 대한기계학회논문집B
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    • 제22권3호
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    • pp.360-372
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    • 1998
  • This study deals with the interaction between buoyancy-induced convection and externally imposed excitation in the form of harmonic rocking and the effect of the interaction upon heat transfer in low-Pr liquids. A wide array of system responses are discussed using the spectral collocation numerical technique. The superposition of buoyancy and Coriolis forces leads to complex fluid flow and heat transfer. The transition to chaotic convection is accelerated, and heat transfer rates are reduced as the enclosure is excited at the fundamental frequency of oscillation associated with the pure buoyancy-driven case. Average heat transfer rates are correlated for Pr=0.02 and 0.03. The heat transfer is affected more in the Pr=0.03 liquid than the case of Pr=0.02.

일부 산업체 근로자의 성인병 발생양상 (Patterns in the Outbreaks of Senile Diseases of Industrial Workers in Kwang-ju and Ghon-nam Area)

  • 정희곤
    • 한국식품영양학회지
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    • 제5권2호
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    • pp.99-103
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    • 1992
  • Patterns in the outbreaks of senile diseases were investigated on 1, 264 workers by special examination among the 43, 210 industrial workers by the screening test performed in Kwang-ju and Chon-nam Branch of Korean Industrial Health Association from January 4 to December 31 in 1991. The results are summarized as follows : 1) Prevalence rate of senile diseases of industrial workers was 2.9%. And prevalence rate according to the kinds of senile diseases was observed in the order of hepatitis (0.9%), hypertension(0.7%), diabetes mellitus(0.5%), anemia(0.4%). 2) Prevalence rate of complicated senile diseases of industrial workers was 0.5%. And prevalence rate according to kinds of complicated senile diseases was observed in the order of others hypertension and arteriosclerosis (0.1%), HBV and others chronic hepatitis(0.1%), essential hypertension and arteriosclerosis(0.03%), iron deficiency anemia and leukopenia(0.03%).

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서울시 일원 약수의 수질에 관한 조사연구 (Studies on the Mineral Water in Seoul Area)

  • 최한영
    • 환경위생공학
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    • 제3권1호
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    • pp.69-74
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    • 1988
  • This study was carried out to investigate water quality and pollution in the mineral water located in Seoul area. 15 sites were pointed out by random sampling and tested monthly for 14 items from July to December in 1986. 1. 14 sites were suitable for the drinking water standards but 1 site was not suitable for its pH (5.4). 2. The range of mineral element and concentration were as follows: $$K\;(1.1\pm0.19\~2.38\pm0.45ppm)$$ $$Na\;(5.14\pm0.32\~11.2\pm0.58ppm)$$ $$Ca\;(4.36\pm0.53\~14.44\pm0.53ppm)$$ $$Mg(1.58\pm0.32\~6.34\pm0.77ppm)$$ 3. Among the heavy metals, Fe, Zn, Mn, Cu, were detected small amount but Pb was not detected in all sample. 4. Fluoride concentrations were the range of $0.13\pm0.03\~0.42\pm0.03ppm$.

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수학 영재교육의 최근 동향에 대한 분석 - APCR 8, ERIC, ICME 10, ICCME&EGS'03을 중심으로 -

  • 이강섭;황동주
    • 한국수학교육학회지시리즈E:수학교육논문집
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    • 제18권3호통권20호
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    • pp.199-208
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    • 2004
  • 본 연구는 2004년은 한국에서 개최된 APCG 8(The 8th Asia-Pacific Conference on Giftedness, 2004)을 통하여 일반 영재교육의 최근 동향을 탐색하였다. 1980에서 2002년까지의 ERIC(Education Research Information Center)에 나타난 수학영재관련 문헌을 검색하여 644개를 선정 분석하여 그 연구 동향을 파악하고, 2003년에서 2004년까지는 ICME 10(the 10th International Congress on Mathematical Education, 2004)과 ICCME&EGS'03 (The Third International Conference Creativity in Mathematics Education and the Education of Gifted Students, 2003)을 통하여 수학영재교육의 최근 연구 동향을 분석하여 수학영재교육 발전과 활성화에 도움을 주는데 목적을 두고 있다.

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처분환경조건에서 모의 방사성폐기물 붕규산유리고화체의 장기침출률 (Long-term leach rates of simulated borosilicate waste glasses under a repository condition)

  • 전관식;김승수;최종원
    • 한국방사성폐기물학회:학술대회논문집
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    • 한국방사성폐기물학회 2003년도 가을 학술논문집
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    • pp.266-269
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    • 2003
  • 심부 처분환경조건에서 붕규산유리고화체의 장기침출거동을 규명하기 위하여 3종의 모의붕규산유리고화체에 대한 장기침출실험이 1997년에 착수되었다. 5년간의 침출결과는 붕소가 본 붕규산유리고화체의 장기침출지표물질로 사용될 수 있음을 확인시켜 주었고, 비록 고화체들의 조성은 약간씩 다르지만 초기 1년여 기간동안의 침출률을 제외한 장기침출률은 S/V에도 무관하게 $0.03g/m^2-day$에 근접함을 보여주고 있다.

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Light Curve of BL Cam using KASINICS

  • 한장희;손정주;성현일;전영범
    • 천문학회보
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    • 제36권2호
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    • pp.149.1-149.1
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    • 2011
  • 보현산 천문대의 근적외선 카메라시스템인 KASINICS(KASI Near Infrared Camera System)를 사용하여 다주기 변광성 BL Cam을 관측하였다. BL Cam(${\alpha}=03^h47^m19^s$, ${\delta}=+63^{\circ}22'7"$[J2000.0], V=13.10, ${\Delta}V$=0.33mag)은 광학적 쌍성으로 SX Pheoenics 변광성 중 하나이며 0.03 - 0.08day의 짧은 주기를 갖는 다주기 변광성으로 알려져 있다. 대상 천체의 적외선 관측을 위하여 한국천문연구원에서 개발한 지상 망원경용 근적외선 카메라 시스템 KASINICS를 사용해 J, H, Ks filter로 시계열 관측을 하였다. 대상 천체의 가시광 파장대에서의 관측 자료와 적외선 파장대에서의 관측 자료를 비교 분석함으로써 천체의 외곽층에서 발생하는 상호작용에 대해 알아볼 수 있다.

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관교의치(冠橋義齒) 납착시 Preheating 방법에 따른 치경부(齒經部) 변록의 적합도(適合度)에 관한 실험적 연구 (A Study of Cervical Margin Distortion in Preheating Method during Soldering)

  • 김원태
    • 대한치과기공학회지
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    • 제6권1호
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    • pp.11-14
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    • 1984
  • The auther performed this experimental study on cervical margin distortion in preheating method during soldering. 1. In soldering methods, the method using the furnace has less distortion than the method using open-flame and longer the bridge spon, the larger the distortions. 2. Table Ⅰ Showed that buccal margin, lingual margin, mesial margin and distal margin had respectively 0.01mm, 0.02mm, 0.03mm, 0.03mm closer adaptation in 3 unit bridge than in 5 unit bridges. 3. Table II showed that buccal margin, lingual margin, mesial margin and distal margin had respectively 0.06mm, 0.07mm, 0.11mm, 0.05mm closer adaptation in 3 unit bridge than in 5 unit bridges.

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순수물질에 대한 포화액체밀도 상관식의 성능비교 (Performance Comparison of Correlations of the Saturated Liquid Densities for Pure Substances)

  • 이경렬;박경근
    • 대한설비공학회:학술대회논문집
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    • 대한설비공학회 2005년도 동계학술발표대회 논문집
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    • pp.373-379
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    • 2005
  • A few correlation equations of the saturated liquid density are reviewed and a new equation is proposed. Performance of each equation is examined using the data listed in the ASHRAE table for 22 pure substance refrigerants. The new four-parameter equation yields an average absolute deviation of 0.03% for 22 refrigerants. Performance of the new four-parameter equation is found to be equivalent to those of the existing equations such as Hou-Martin equation(0.03%) and Iglesias-Silva-Hall equation(0.08%).

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녹차 물로 재배한 콩나물의 생육 특성 (A Study on Characteristics of Soybean Sprouts Cultured with Green Tea Extracted)

  • 김금숙;정수영;정종갑;신미경
    • 동아시아식생활학회지
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    • 제15권6호
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    • pp.752-758
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    • 2005
  • This study examined growth and sensory characteristics of soybean sprout cultured at $25\pm1^{\circ}C$ for 4 days with distilled water(control) and green tea extract(0.03 and $0.05\%$). Initial germination rate was higher when soaking in green-tea extract than in the control. The proper concentration of green-tea extract was $0.03\%$. The growth of soybean sprout in $0.05\%$ green-tea extract was better than the control for the hypocotyl thickness and mot hair. Soybean sprout grown with green-tea extract were better than that with control inappearance, flavor, texture and over-all acceptabilitty.

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