Thermoelectric-cooled liquid bath chiller capable of unattended operation at −28 °C

2018 ◽  
Vol 89 (12) ◽  
pp. 125101
Author(s):  
Chad Lunceford ◽  
Jeff Drucker
Keyword(s):  
Liquid Bath

Improved Factor VIII Yield in Cryoprecipitate Using a Quick Thaw Technique

1975 ◽  
Author(s):  
J. F. Davidson ◽  
J. H. McAdam ◽  
M. J. Mackenzie ◽  
M. L. Kavanagh
Keyword(s):  
Factor Viii ◽  
Standard Method ◽  
Liquid Bath ◽  
Activity Factor ◽  
Factor Viii Antigen ◽  
Fresh Plasma

Standard Cryoprecipitate was prepared from fresh citrate phosphatedextrose plasma by snap freezing at —70° C and then thawing at +4° C in air for 18 hours. In 143 experiments the yield of Factor VIII from the starting plasma was 42%.In 64 paired experiments the Factor VIII yield in Cryoprecipitate from fresh plasma was increased, from 43% in the standard method to 56% when a quick thaw of 50 minutes at +4° C in a liquid bath was introduced. In 10 other paired experiments the yield in the standard method was raised from 51% to 61% when 90 minutes of super-cooling at —6° C in a liquid bath was introduced prior to snap freezing. When, however, the quick thaw and super-cooling modifications were combined in 42 paired experiments, the yield was only 49% compared with 42% by the standard method.It is concluded that this simple quick thaw modification will produce a greater yield of Factor VIII in Cryoprecipitate and that the addition of the technically more demanding super-cooling modification does not give a significantly greater yield.It seems likely that the longer period at +4° C in the standard method leads to denaturation of a proportion of the Factor VIII and loss of activity. Factor VIII antigen, however, was not lost. In a smaller number of experiments approximately all the Factor VIII was recovered in the Cryoprecipitate and its supernatant. Furthermore, the relative proportions of Factor VIII antigen and procoagulant in the Cryoprecipitate were found to vary in concert suggesting that the Factor VIII molecule is not dissociated in the process of cryoprecipitation.

scholarly journals Self-Propulsion of a Volatile Drop on the Surface of an Immiscible Liquid Bath

2021 ◽  
Vol 127 (14) ◽  
Author(s):  
Benjamin Reichert ◽  
Jean-Benoît Le Cam ◽  
Arnaud Saint-Jalmes ◽  
Giuseppe Pucci
Keyword(s):  
Immiscible Liquid ◽  
Liquid Bath

scholarly journals Pengaruh Volume Minyak Sumbawa Sebagai Antibakteri dalam Pembuatan Sabun Mandi Cair

2020 ◽  
Vol 8 (2) ◽  
pp. 97
Author(s):  
Muhamad Zaenudin ◽  
Ahmadi Ahmadi ◽  
Hulyadi Hulyadi
Keyword(s):  
Experimental Research ◽  
Daily Life ◽  
Antibacterial Properties ◽  
Inhibition Zone ◽  
Liquid Bath ◽  
Staphyloccocus Aureus ◽  
Bacteria And Fungi

Soap is a necessity for daily life, such as for bathing, washing, and cleaning other necessities. Normally various kinds of bacteria and fungi can live permanently on the skin, for example, such as thebacteria Staphyloccocus aureus. Antibacterial soap is used as a solution to this bacterial problem. Sumbawa oil is a natural ingredient that has the potential to be antibacterial in body wash. Sumbawa oil contains geraniol and citronellal, flavonoids, polyphenols and also contains saponins and tannins. The research objective was to find out what volume of Sumbawa oil is used to obtain the quality of liquid bath soap which has antibacterial content and meets SNI standards. This research is an experimental research in a laboratory by varying the volume of Sumbawa oil. The parameters measured in this study were the effect of variations in the volume of Sumbawa oil on antibacterial properties and pH of liquid bath soap. The findings in this study that the best antibacterial properties were found in the addition of 15 ml volume of Sumbawa oil with an average inhibition zone of 19.5-22.3 mm and a pH of 5 ml of Sumbawa oil volume with an average pH of 6.1. Based on the above findings, it can be concluded that the addition of Sumbawa oil has an effect on the antibacterial properties and pH of liquid bath soap. 

Asymmetric vortexes induced traveling drop on an oscillatory liquid bath

2019 ◽  
Vol 31 (10) ◽  
pp. 102102 ◽  
Author(s):  
Meng-Hsien Tsai ◽  
Kiat Li Law ◽  
Hong-Yu Chu
Keyword(s):  
Liquid Bath

scholarly journals Mixing Phenomena in a Liquid Bath Stirred by Gas Jets through Side and Inclined Nozzles.

1993 ◽  
Vol 33 (7) ◽  
pp. 740-747 ◽  
Author(s):  
Sergey V. Komarov ◽  
Kenji Itoh ◽  
Masamichi Sano ◽  
Konstantin A. Blinov
Keyword(s):  
Liquid Bath ◽  
Gas Jets

scholarly journals Aluminium Alloys Smelting in Shaft- Reverberatory Furnaces in a Liquid Bath Mode

2017 ◽  
Vol 17 (2) ◽  
pp. 183-189
Author(s):  
V. Grachev
Keyword(s):  
Aluminum Alloys ◽  
Lower Energy ◽  
High Efficiency ◽  
Reverberatory Furnace ◽  
Continuous Operation ◽  
Liquid Bath ◽  
Metal Loss ◽  
Energy Costs ◽  
Efficiency And Productivity ◽  
Reduce Metal Loss

AbstractThe aim of research was creation of a furnace for aluminum alloys smelting “in a liquid bath” in order to reduce metal loss. In the paper, the author demonstrates the results of research on smelting of aluminum alloys in a shaft-reverberatory furnace designed by the author. It has been shown that smelting aluminum alloy in a liquid bath was able to significantly reduce aluminum loss and that shaft-reverberatory design provided high efficiency and productivity along with lower energy costs. Ensuring continuous operation of the liquid bath and superheating chamber, which tapped alloy with the required texture, was achieved by means of the optimal design of partition between them. The optimum section of the connecting channels between the liquid bath of smelting and the superheating chamber has been theoretically substantiated and experimentally confirmed. The author proposed a workable shaft-reverberatory furnace for aluminum alloys smelting, providing solid charge melting in a liquid bath.

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