• Title/Summary/Keyword: Waterless

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Development of a Waterless Container Utilizing Thermoelectric Modules for Live Fish Transportation (열전소자를 이용한 활어 수송용 무수 컨테이너의 개발)

  • 윤태복;김남진;이재용;김종보
    • Korean Journal of Air-Conditioning and Refrigeration Engineering
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    • v.12 no.5
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    • pp.519-524
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    • 2000
  • The purpose of this study is to develop a low temperature waterless container for live fish transportation which is economical and efficient The principle of the waterless transportation is that a live fish becomes asphyxial at about $5^{\circ}C$can survive without water for a long time. A low temperature waterless container is developed for this purpose, which utilizes thermoelectric modules for rather smaller and lighter cooling system with precise temperature control devise compared to the existing mechanical system. At first, we succeeded in making flounders alive in the waterless container for 24 hours. Also when flounders were transported in a round trip from Inchon to Pusan in the waterless container, carried in a car, they survived in the waterless container for over 21 hours.

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A Study on the Temperature Dependence of Waterless Lithography (무습수 평판인쇄의 온도 의존성에 관한 연구)

  • 신춘범;강상훈;이상남
    • Journal of the Korean Graphic Arts Communication Society
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    • v.19 no.1
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    • pp.42-54
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    • 2001
  • The combination of a silicone surfaced plate and high viscosity ink produced a waterless printing system that worked well, but had limitation. The limitation was that this system was restricted to relatively short run lengths. In the waterless printing process, the press tended to heat up rapidly. Heat in turn, broke down the resins in the inks, causing them to become more fluid. When the ink is heated, the viscosity will drop, the ink will become too liquid and the plate will no longer be able to resist it. The ink will adhere to the non-print portions of the plate, and will print as a very fine mist or speckle pattern in the non-image area. On the other hand, when the ink gets too cold, viscosity will increase until ink transfer is impeded. This study carried otu to investigate the effect of temperature variations of the inks on the print quality in waterless lithography and to examine the adaptability of waterless lithography to conventional offset press without cooling system.

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Bactericidal Effect of Waterless Alcohol Gel Hand Washing Agent (물 없이 사용하는 알코올 젤의 손소독 효과에 관한 연구)

  • Jeong, Jae-Sim;Kim, Duck-Hee;Kim, Mi-Na;Choe, Myoung-Ae
    • Journal of Korean Biological Nursing Science
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    • v.4 no.2
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    • pp.127-137
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    • 2002
  • The purpose of this study was to compare the hand disinfection effect of waterless alcohol gel hand washing agent with that of soap and water, 4% chlorhexidine gluconate, and 10% povidone-iodine. Hands of fourty subjects were artificially contaminated with Acinetobacter baumannii $5m{\ell}$ and randomly distributed to each hand washing methods. Samples were collected from gloved hand by glove juice sampling procedure. Mean log reduction after hand washing were compared with baseline values. Number of microorganisms were converted to log and tested by ANOVA in SPSSWIN 10.0. Mean log reduction of soap and water, alcohol gel, 4% chlorhexidine gluconate, 10% povidone-iodine were $2.76{\pm}0.62$, $2.97{\pm}0.56$, $4.66{\pm}1.70$, $4.60{\pm}0.91$, respectively. The bactericidal effect of alcohol gel was similar to that of soap and water, but the effect was much less than chlorhexidine gluconate and povidone-iodine(p<0.001). In terms of microorganism reduction, the efficacy of waterless alcohol gel was almost the same as soap and water hand washing. Further evaluation of the bactericidal effect of waterless alcohol gel is needed because waterless alcohol gel is simple, convenient, and non-irritating hand washing agent and also very effective in busy hospital environment.

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A Study on the Characteristics of Waterless Urinal System (설비 측면에서 본 물 안 쓰는 소변기의 특성 고찰)

  • Go, Mu-Hwan;Seo, Gi-Won;Kim, Yun-Jung
    • Proceedings of the SAREK Conference
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    • 2008.06a
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    • pp.506-510
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    • 2008
  • The most important thing in the restroom is the saving water resource and the removing bad odor. Due to the waste of water and the inefficient operating system, the current urinal receptacles have been gradually replaced by the waterless urinal receptacles in the advanced countries. Therefore, this study investigated the advantages, the characteristics, and the expected problems of the current and the waterless urinal systems. Based on the comparisons between the two urinal systems from this study, the plumbing engineers can positively consider the replacement of the current urinal receptacles with the waterless ones.

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Study on CMS Application in Hybrid UV Waterless Off-Set Printing (H-UV 무습수 오프셋 인쇄에서 CMS 적용에 관한 연구)

  • Koo, Chul-Whoi;Cho, Ga-Ram
    • Journal of Korea Technical Association of The Pulp and Paper Industry
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    • v.45 no.5
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    • pp.1-13
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    • 2013
  • This study found fit optimum C, M, Y, K solid density and $CIEL^*a^*b^*$ value to paper & ink as well as check about printing machine state for color management in H-UV waterless off-set printing first. These values applied to GRACoL G7 calibration method. This method is one of color standard management method of printing. GRACoL G7 calibration method is possible stable tone reappearance by controlling gray balance by NPDC(Natural Printing Density Curve). Also, this study used values to make device profile as result that is gotten by application of GRACoL G7 calibration method. This profile was applied to CMS(Color Management System) of H-UV waterless off-set printing, and the result was possible by color management that correspond in printing quality standard of ISO 12647-2 and GRACol 2006 specifications.

Comparison of Surgical Hand Scrub Formulations and Scrub Methods for Antimicrobial Efficacy (손 소독제 및 소독방법에 따른 외과적 손 소독 효과)

  • Kim, Myoung-Sook;Kim, Kyoung-Ja;Shin, Young-Ran;Park, Kwang-Ok;Mun, Hyang-Mi;Jeong, Jae-Sim;Kim, Mi-Na
    • Journal of Korean Biological Nursing Science
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    • v.9 no.2
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    • pp.118-124
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    • 2007
  • Purpose: The purpose of this study was to compare three surgical scrub methods-4% chlorhexidine gluconate(CHG) with brush, 4% CHG without brush, and waterless scrub using 1% CHG and 61% ethanol combination(alcohol-based agent)-for antimicrobial efficacy. Method: "Glove-juice technique" was used to evaluate microbial hand counts before surgical scrubs, 1 min and 3 hr after surgical scrubs. Result: Waterless scrub using CHG and ethanol combination resulted in a 4.8-log reduction at 1 min and 4.0-log reduction at 3 hr. CHG without brush resulted in a 4.7-log reduction at 1 min and 3.3-log reduction at 3 hr. The traditional scrub using CHG with brush resulted in a 3.6-log reduction at 1 min and 0.8-log reduction at 3 hr. The waterless scrub and CHG without brush showed significantly higher log reduction(p<.05) than CHG with brush at 1 min and 3 hr after surgical scrub. Waterless scrub showed greater log reductions than CHG without brush, but there was no statistical difference between the two groups. Conclusion: Waterless scrub using alcohol-based agent showed more persistent and immediate antimicrobial efficacy than either CHG with brush or CHG without brush.

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