نتایج جستجو برای: semi continuous cultivation
تعداد نتایج: 428944 فیلتر نتایج به سال:
We consider semi-continuous network flow problems, that is, a class of network flow problems where some of the variables are restricted to be semi-continuous. We introduce the semi-continuous inflow set with variable upper bounds as a relaxation of general semi-continuous network flow problems. Two particular cases of this set are considered, for which we present complete descriptions of the co...
Denitrifying anaerobic methane oxidizing (DAMO) microorganisms were enriched from paddy field soils using continuous-flow and batch cultures fed with nitrate or nitrite as a sole electron acceptor. After several months of cultivation, the continuous-flow cultures using nitrite showed remarkable simultaneous methane oxidation and nitrite reduction and DAMO bacteria belonging to phylum NC10 were ...
due to lack of using pesticides in production of green leaf, iran’s produced tea is considered as of the purest and healthiest teas in the world [1]. although, by passing one century from commencement of tea cultivation and production in iran, tea cultivation surfaces has been developed and numbers of tea making factories has been increased, no progress has been made in improvement of quality o...
Previous communications from this laboratory have reported the cultivation and poliovirus in fection of cells from the normal human amnion (11), the cytological changes associated with polio virus infection (3), and the continuous cultivation of a strain of cells (5). The present paper describes the transformation of cells from four normal human amnions into seven established, rapidly growing s...
The cyanobacterium semi-filamentous multicellular strain ABRG5-3 undergoes cell lysis as a unique feature that occurs due to growth condition changes from normal cultivation with shaking to static cultivation without shaking in liquid culture (Nishizawa et al., 2010). Microscopic observation and energy dispersive X-ray spectrometer (EDX) analysis have revealed that lysis is involved in the accu...
This study is pertaining to the production of penicillin G acylase (PGA) by Bacillus subtilis 8105MU331 in which PGA gene, under the control of thermal-induced promoter, was integrated. The key process parameters including induced-temperature, induced-time, and culture temperature were optimized in flask culture. A three-stage cultivation process was developed for PGA production with the expres...
Compared to fully-continuous HMMs, semi-continuous HMMs are more compact in size, require less data to train well and result in comparable recognition performance with much faster decoding speeds. Nevertheless, the use of semi-continuous HMMs in large vocabulary speech recognition systems has declined considerably in recent years. A significant factor that has contributed this is that systems t...
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