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Mycelia of Morchella esculenta were found to aggregate rapidly in a submerged culture, which caused the decrease in dispersed mycelia and the problem of diffusion limitation. The effect of different agitation schemes on the growth of mycelia was investigated in a stirred-tank bioreactor. At the constant speed of 100 or 300 rpm, rapid aggregation caused the biomass concentration to drop to zero in...
Under the background of economic globalization, the export-oriented economy develops rapidly in Hebei province, which increases the needs of the comprehensive talents of foreign languages. This article analyzes the standards of comprehensive talents of foreign languages and the present condition of its cultivation in Hebei province. Finally, it establishes a set of countermeasures which join the effort...
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