• 제목/요약/키워드: anti-fog-effect

검색결과 5건 처리시간 0.022초

The Additive Effect of Polyoxyethylene Compounds on the Photographic Characters of Photographic Emulsion

  • Youn, Min-Young;Ahn, Hong-Chan;Kang, Tai-Sung
    • Journal of Photoscience
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    • 제7권2호
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    • pp.45-46
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    • 2000
  • The polyoxyethylene compounds were added into the photographic emulsion during the physical ripening of photo sensitive silver halide crystal in this emulsion. The polyoxyethylene compounds improved the photographic properties of the film to a great extent increasing the photo sensitivity and decreasing the fog density.

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Dust & Fog법을 이용한 트래킹가속열화 (Accelated Aging Test of Tracking Using the Dust & Fog Method)

  • 임장섭;이진;이정식;정우성;김태성
    • 한국전기전자재료학회:학술대회논문집
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    • 한국전기전자재료학회 1996년도 추계학술대회 논문집
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    • pp.117-120
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    • 1996
  • In this paper, It is tested by spraying the spoiled liquids on the materials to prove the process of tracking under the various environments. Our experiments ware examined by setting the materials in the spray chamber, and by spraying the distilled water(DW), the city water(CW), the underground water(UW), the artificial acid rain(AR) and the salt water(SW) in applied voltage 3-6[KV]. As the result, the time of tracking breakdown became shorter in the order of DW < CW < UW < AR < SW. XLPE was eroded and its anti-bracking property was very strong, but that of PVC sheath was week. Especially it was confirmed that spraying by AR and SW on the PVC sheath had a serious effect on the lifetime of cable by the tracking breakdown.

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General Pharmacological Study of CJ-11828, an Amlodipine adipate

  • Choi, Jae-Mook;Lee, Sung-Hak;Kim, Il-Hwan;Park, Jie-Eun;Park, Choong-Sil;Youn, Yong-Sik;Lim, Dong-Kwon;Cho, Sung-Hwan;Chang, Jun-Hwan;Do, Sun-Hee;Kim, Eun-Joo;Kim, Young-Hoon
    • Biomolecules & Therapeutics
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    • 제12권2호
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    • pp.114-121
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    • 2004
  • This study was undertaken to evaluate the general pharmacological properties of CJ-11828, an amlodipine adipate, in experimental animals and in vitro system. CJ-11828 had no effects on general behavior, motor coordination, writhing syndromes, pentetrazol-induced chemoshock and electric shock in mice at dose levels of 3,10, anti 30 mg/kg, po. But there were decrease of body temperature, prolongation of sleeping time, and inhibition of intestinal activity in mice treated with CJ-11828 at doses of 10 and 30 mg/kg, po. CJ-11828 decreased the blood pressure in coscuous fog at the dose level of 2mg/kg, po, but it was expected as a result of pharmacological activity of CJ-11828. Any effect on respiratory system was not observed in conscious rat at doses of 3,10, and 30 mg/kg, po. The slight decrease in spontaneous motor activity was observed in mice treated with CJ-11828 at high dose, 30 mg/kg. In vitro experiments, CJ-11828 had no effect on agonists-induced contraction of isolated guinea pig ileum at 0.1, 1, and 10 ${\mu}$M. Based on these results, it was concluded that CJ-11828 had no pharmacological effect ill these studies even up to the 36-fold anticipated clinical dose, 3 mg/kg.

UGC 모델링에 관한 연구(I) (A Study on Modeling of Unmanned Gantry Crane (1))

  • 박경택;김두형;신영재;박찬훈;김용선
    • 한국항해항만학회:학술대회논문집
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    • 한국항해항만학회 1999년도 추계학술대회논문집
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    • pp.333-344
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    • 1999
  • Currently many studies on the unmanned gantry crane for the automated container terminal are accomplished. This is needed for the development of large scale, automation, high speed, unmanned system and information system in port facility. In order to do efficient container handling job in port yard, the automated handling system is well adapted to the job environments and all-season weather, In order to realize the automatic and unmanned system for container handling job, the required functions and main structure system are studied. The major problems of operation of the conventional gantry crane are that the vibration of gantry structure body is occurred by operation and that high-speed and precision position-velocity control and the capability to dope to the external disturbances caused by the wind, rain, fog and job environments. In this paper, the fundamental study for establishment of the concept and the dynamic modelling of the major sub system of the unmanned gantry crane is presented. These studies are useful for design and manufacturing of the new concept model of the unmanned gantry crane for efficient operation of the automated container terminal.

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큰느타리버섯 포장형태에 따른 신선도에 미치는 영향 (Effect of trimming type and storage temperature after harvest on shelf life of Pleurotus eryngii)

  • 이윤혜;이한범;장명준;주영철;전창성
    • 한국버섯학회지
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    • 제10권4호
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    • pp.198-202
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    • 2012
  • 큰느타리버섯의 소포장에 적합한 포장형태 및 저장온도에 따른 저장기간 중 품질변화를 분석한 결과, 중량감모율은 저장온도가 높거나 저장기간이 길수록 증가하였으며, $0^{\circ}C$저장시 배지부착여부에 따른 차이가 없었으나 $4^{\circ}C$저장에서는 저장기간 38일까지 배지 부착형에서 다소 높았다. 갓신장율은 $0^{\circ}C$저장시 배지부착개체형이 비교적 낮았으며, $4^{\circ}C$저장에서는 배지 부착여부에 따른 큰 차이 없이 저장기간이 길수록 증가하였다. 저온저장 후 상온에서 기간이 길수록 중량감모율은 증가하였으며, 갓신장율은 배지부착형은 증가하였으나, 배지제거형은 6일 이후에 감소하는 경향을 보였다. 저온 저장 후 상온에서의 신선도는 배지부착형이 배지제거형보다 길게 유지되었으며, 32일 저온저장처리가 상온에서 6일까지 판매가능한 신선도가 유지되었다.