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BACKGROUND Purified from the supernatant of Bacillus subtilis QK02 culture broth, Subtilisin QK-2 is a type of effective thrombolytic reagent that has great exploitable potential. However, the unbearable flavor that occurs with fermentation and the complicated methods that are required to obtain pure products limit the application of this enzyme. Lactic(More)
Epstein-Barr virus (EBV) is a ubiquitous human herpesvirus that is linked to the development of various malignancies. There is an urgent need for effective vaccines against EBV. EBV envelope glycoprotein gp350 is an attractive candidate for a prophylactic vaccine. This study was undertaken to produce the truncated (codons 1-443) gp350 protein (gp3501-443)(More)
In order to solve the problem of precise temperature control, the thermoelectric cooler (TEC) principle widely used is analyzed for the design of the whole control process and selection of control parameters, and then accurate simulation model of the TEC is established in Proteus simulation software. Moreover, combined with the traditional circuit(More)
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