• Title/Summary/Keyword: 전온도

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Effect of Predisposing Temperatures on The Histopathology of the The Rice Blast Fungus, Pyricularia oryzae II. Effect of Four Predisposing Temperature Regimes on The Symptom Development (접종전 온도처리가 벼도열병균의 조직병리학에 미치는 영향 II. 도열병 병반발현에 미치는 접종전 처리온도의 영향)

  • KIM Chang Kyu;CRILL PAT
    • Korean journal of applied entomology
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    • v.19 no.1 s.42
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    • pp.21-29
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    • 1980
  • In the present study, it was found that the susceptible variety Khao-tah-haeng 17, at all four predisposing temperature regimes, produced more typical lesions than hypersensitive lesions when inoculated with most of the blast fungus isolates. Tetep, Carreon, IR36 and Sensho produced more hypersensitive lesions than typical lesions at all four predisposing temperature regimes. Highly significant differences among predisposing temperature regimes and rice varieties for number of hypersensitive lesions and number of typical lesions were found. Symptom occurrence on a specific variety, as measured by the number of typical lesions, was more affected by predisposition temperature or blast isolate than by temperature and isolate combined. Symptom occurrence on a specific variety, as measured by the number of hypersensitive lesions, was more affected by blast isolate than by predisposition temperature.

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Changes in Temperature during Arthroscopic Knee Surgery (관절경 수술시 슬관절내 온도변화)

  • Lee Tong Joo;Kim Hyoung Soo;Park Seung Rim;Kang Joon Soon;Yeoum Seung Hoon;Kim Shin
    • Journal of the Korean Arthroscopy Society
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    • v.6 no.1
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    • pp.49-53
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    • 2002
  • Purpose : To document the change in the temperature of the knee joint at the initiation and conclusion of an arthroscopic procedure and correlate this temperature change with other intra-operative variables. Material and Methods : Temperature measurements were performed in 40 consecutive patients(42 cases) that underwent arthroscopic surgery. Temperature measurements were taken at the initiation of the procedure, before and after inflation of the tourniquet. The last measurement was recorded at the end of the surgical procedure. Results : The mean knee joint temperature evaluated before inflation of the torniquet was $35.1{\pm}1.0$, at the end of surgery, $24.6{\pm}1.5^{\circ}C$. The mean temperature change observed from the beginning to the end of the procedure was $10.5^{\circ}C$. The student t test showed a statistically significant difference of the initial joint temperature(p<0.01) between the patient with no and+1 effusion / between the patient with no and +2 effusion. The temperature at the end of the procedure was found to be statistically low correlated (p<0.01) with the lower temperature of the irrigant and the lengthening of the arthroscopic procedure. Conclusion : Consideration should be given to maintaining the saline irrigant to more physiologic temperature to protect the articular cartilage from any possible temperature induced damages.

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온도표준과 온도센서 특성

  • 이호근
    • Journal of the KSME
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    • v.31 no.6
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    • pp.506-511
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    • 1991
  • 1990년 1월 1일부터는 국제온도눈금 ITS-90에 준하여 국제온도눈금이 농용되게 되었으며, 이 새로운 국제온도눈금은 향후 적어도 약 20년간 국제적으로 적용될 예정이다. 새로운 국제온도 눈금의 제정으로 과거에 비해 660.deg. C-962.deg. C 온도영역에서 약 10mk의 정밀도로 온도를 측정할 수 있게 되었다. 하나의 온도계로 요구되는 전 온도영역을 정확히 측정할 수 있는 온도 계는 없으므로 온도측정 환경과 요구되는 정확도에 따라 적합한 온도센서를 선택하여 사용해야 하며 본 글에서는 대표적인 온도계의 특징에 대해 개설하였다.

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The Surface Temperature Environment Analysis after Cheonggye Stream Reconstruction using RS/GIS (RS/GIS를 이용한 청계천 복원에 따른 지표 열 환경 분석)

  • Jo, Myung-Hee;Kim, Sung-Jae;Jo, Youn-Won;Kim, Yeon-Hee
    • Proceedings of the KSRS Conference
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    • 2007.03a
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    • pp.320-325
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    • 2007
  • 인간의 보다 질 높은 생활관을 추구하기 위하여 친 환경적인 산업개발 및 환경 복원 사업에 대한 노력이 최근 들어 끊임없이 지속되고 있다. 본 연구에서는 서울시 청계천을 대상으로 청계천 복원 전과 복원후의 지표 열 분포도를 작성하고 이를 기반으로 청계천 복원 전${\cdot}$후의 지표 열 변화를 분석하였다. 아울러 지표온도와 현지 관측 자료인 AWS 자료와의 비교 분석을 수행하여 지표온도와 대기온도 차를 도출하였다. ASTER 영상 열적외센서(TIR) 와 GIS 를 활용하여 도시 지표면의 온도를 추출하고, AWS 기 상관측자료와의 상관성 분석 함으로써 도심의 지역적 인 지표 열 패턴과 국지적인 기후연구에 활용가능성을 제시하고자 한다.

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Measurement of Adiabatic Wall Temperature on an Impinging Surface by Under-expanded Jet (과소팽창된 충돌제트에 의한 단열벽면 온도 측정)

  • Yu, Man-Sun;Lee, Jang-Woo;Kim, Byung-Gi;Cho, Hyung-Hee;Hwang, Ki-Young;Bae, Ju-Chan
    • Journal of the Korean Society for Aeronautical & Space Sciences
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    • v.33 no.4
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    • pp.79-84
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    • 2005
  • An experimental investigation for impingement of under-expanded, axisymmetric jets on a flat plate has been conducted, and the surface pressure, the adiabatic wall temperature distributions on the plate have been measured in detail. For the explanation on the wall temperature distributions, the total temperature distributions along a free jet have also been measured with total temperature probes. In this study, the under-expansion ratio and the nozzle-to-plate distance have been considered as experimental parameters. Depending on nozzle-to-plate distances, different distributions of adiabatic wall temperature are shown by the energy separation at a jet edge and a impinged surface. Also, the recovery factor on a stagnation point decreases significantly due to the isolation of fluid particles in a central region.

Effect of deposition temperature on field emission property of carbon thin film grown by PECVD (PECVD에 의해 작성된 탄소계 박막의 전계전자방출특성에 대한 증착온도 의존성에 관한 연구)

  • ;;M. Katayama;;K. Oura
    • Journal of the Korean Vacuum Society
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    • v.12 no.1
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    • pp.35-39
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    • 2003
  • Using RF plasma enhanced chemical vapor deposition, amorphous carbon films were grown in pure methane plasma. Field electron emission of these films were examined at a function of deposition temperature. It was found that the electron emission current of the sample prepared at deposition temperature above $600^{\circ}C$ was considerably improved. The film grown at deposition temperature of $800^{\circ}C$ had the best threshold field of 8 V/$\mu\textrm{m}$ in this experiment. According to the results of Raman spectroscopy. growth of graphite crystallites was promoted with higher deposition temperatures. Moreover the surface morphology was abruptly changed at deposition temperature above $600^{\circ}C$. We discuss the field electron emission characteristics of amorphous carbon films with regard to the structural feature and surface morphology.

Byproducts formation during hydrothermal pretreatment of spent mushroom substrate and effects onto biogas production efficiency (버섯 폐배지의 수열전처리 과정 중 중간산물 생성이 바이오가스 수율에 미치는 영향)

  • Jongkeun Lee;Daegi Kim
    • Journal of the Korea Organic Resources Recycling Association
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    • v.31 no.1
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    • pp.27-34
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    • 2023
  • In this study, spent mushroom substrate (SMS), which consits of lignocellulosic material, was pretreated by hydrothermal method; the changes of biodegradability and methane production yield of pretreated SMS were determined according to formation of lignocellulosic biomass degrading byproducts formation during thermal pretreatment. Based on the results, all hydrothermal pretreatment temperatures showed improved solubilization performance for biomass, and the optimum pretreatment effect was observed at an pretreatment temperature of 150℃ with the highest methane production yield. However, the induced formation of furan derivatives (i.e., 5-hydroxymethylfurfural and furfural) as byproducts during hydrolysis of hemicellulose and cellulose at severe condition lowered biodegradability and methane yield when the hydrothermal pretreatment temperature was higher than 180℃. Thus, this study revealed that hydrothermal pretreatment could promote anaerobic digestion efficiency of lignocellulosic biomass and is of great importance for preventing byproducts formation through pretreatment condition control.

수치모의를 통한 인천국제공항 건설 후 안개발생과 관련한 국지기상변화 고찰

  • 이화운;임헌호;김동혁
    • Proceedings of the Korean Environmental Sciences Society Conference
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    • 2004.11a
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    • pp.185-187
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    • 2004
  • 인천국제공항 건설후 안개 발생과 관련한 국지 기상의 변화를 살펴보고자 하였다. 먼저 온도의 시계열 변화를 살펴 보았을 때 건설 전과 대비해 건설 후에 약 $2^{\circ}C$ 정도의 온도 상승효과가 나타났으며 지표면이 Urban일 경우 주간에 가장 온도가 높고 야간에 온도가 가장 낮게 나타났다.

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A study on the temperature difference of module's front and back (태양전지 전.후면의 온도차에 관한연구)

  • Shin, Hye-Young;Choi, Hong-Kyoo;Lee, Guen-Moo;Choi, Kyung-Han
    • Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference
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    • 2009.10a
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    • pp.55-58
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    • 2009
  • Photovoltaic system that is overcoming the problem of fossil fuel, changes the output quantity rapidly according to the temperature of module. so, we studied this principle and considered the method making lower the temperature of module for maximization of electric power production. In this thesis, we concluded that, we fit on below and upper direction of the module to decrease at the same temperature. lower temperature of below direction is more useful for the generating quantity.

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Effect of Predisposing Temperatures on The Histopathology of The Rice Blast Fungus, pyricularia oryzae I. Effect of Blast Fungus Isolates on Penetration of Rice Varieties at Different Predisposing Temperature Regimes (접종전 온도처리가 벼도열병균의 조직병리학에 미치는 영향 I. 기생체 침입에 미치는 도열병균 균주의 영향)

  • KIM Chang Kyu;CRILL PAT
    • Korean journal of applied entomology
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    • v.19 no.1 s.42
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    • pp.11-20
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    • 1980
  • Percent penetration on a specific rice variety was more affected by blast fungus isolate or predisposition temperature than by temperature and isolate combinations. A susceptible variety tested remained continuously susceptible regardless of whether the variety was grown at different temperature regimes and exposed to isolates/races with differences in pathogenicity and virulence. The expression of virulence by a particular blast fungus isolate race was observed to be changed by subjecting rice host plants to different predisposing temperature conditions prior to inoculation.

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