An emergency immunization campaign has been hampered by a shortage of refrigerators and cold boxes to transport vaccine, the aid agency said.
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The failure of the inlet nozzle was due to liquid metal embrittlement of the train B aluminium cold box by elemental mercury.
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In the summer of 1946 Schaefer found his experimental " cold box " too warm for some laboratory tests he wanted to perform.
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All bundled up in down jacket, ski mask and gloves, he sits in the cold box, making sure the shelves stay stocked with beverages.
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Before that accidental discovery, he had tried soot, carbon, quartz, anything to try to make his artificial clouds rain or snow in the cold box.
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For Lettieri, the jackpot is persuading a store owner to let him install a " cold box, " a free-standing Snapple refrigerator, in a prime location.
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So as to reduce the instrument background and thermo-elerctronic detector noise, the temperature of the cold box is maintained at 93 K by a passive cryogenic cooler.
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Early approaches to preserving food used variants of traditional cold boxes to solve the problem of how to take small quantities of products short distances to market.
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The agency said its battle against the epidemic, which began in June, has been hampered by a shortage of refrigerators and cold boxes to transport the vaccine.
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Blanchard does, by blowing softly into the velvet-lined cold box, cooled to about 10 F . Those tiny water droplets of his breath are an instant, ordinary cloud.
