نتایج جستجو برای: bioreactor

تعداد نتایج: 6462  

بختیاری, روناک , محمد, کاظم , نقاب, مسعود , پورمند, محمد رضا , کریمی, علی , گلبابایی, فریده ,

Introduction: Human and environment exposed to harmful factors, as the result of industrial pollutants. Volatile organic compounds (VOCs) play important role in photochemical reactions in troposphere layer of atmosphere and results in production of ozone and photochemical oxidants. .Material and Method: In this study, a miniature stirred tank bioreactor was designed for treatment of waste gas...

One of the major steps toward the industrialization of the microbial product(s) is to optimize the cultivation conditions at the large-scale bioreactor and successfully control the microbial behavior within a large scale production environment. Statistical Design of Experiment was proven to optimize a vast number of microbial processes to achieve robustness and explore possible interactions...

Journal: :international journal of occupational hygiene 0
ali karimi occupational health department, school of public health and nutrition, shiraz university of medical sciences, shiraz, iran and occupational health eng. department, school of public health, tehran university of medical sciences, tehran, iran. farideh golbabaei occupational health eng. department, school of public health, tehran university of medical sciences, tehran, iran. mohammadreza mehrnia biotechnology group, school of chemical engineering, university college of engineering, university of tehran, tehran, iran. kazem mohammad epidemiology and biostatistics department, school of public health, tehran university of medical sciences, tehran, iran. masoud neghab occupational health department, school of public health and nutrition, shiraz university of medical sciences, shiraz, iran. ahmad nikpey occupational health department, school of public health, qazvin university of medical sciences, qazvin, iran.

a laboratory stirred tank bioreactor with six single and dual-impeller configurations was tested to obtain the optimum operating conditions for future biological processes. six impeller combinations consisting of three basic impeller types, namely rushton turbine (rt), pitched 4blade (p4b) and pitched 2blade (p2b) downward flow were investigated in 1.77 l bioreactor working volume. power consum...

Journal: :تحقیقات نظام سلامت 0

background: leachatecontaining high levels of organic pollution with ammonia, halogenatedhydrocarbons, heavy metals and inorganic salts. among the various methods fortreating leachate, has been developed membrane processes so that a morebiological process of membrane processes is used for separation of solid -liquid. the aimof this study was to evaluate the efficiency of membrane bioreactor eff...

Journal: :Nature Methods 2005

Journal: :FEBS Letters 1995

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2010
shokoufe tayyebi mohammad shahrokhi ramin bozorgmehry boozarjomehry

in this paper, the fuzzy system has been used for fault detection and diagnosis of a yeast fermentation bioreactor based on measurements corrupted by noise. in one case, parameters of membership functions are selected in a conventional manner. in another case, using certainty factors between normal and faulty conditions the optimal values of these parameters have been obtained through the genet...

Journal: :Bioengineering 2023

Mesenchymal stromal cell (MSC)-derived products, such as trophic factors (MTFs), have anti-inflammatory properties that make them attractive for cell-free treatment. Three-dimensional (3D) culture can enhance these properties, and large-scale expansion using a bioreactor reduce manufacturing costs. Three lots of MTFs were obtained from umbilical cord MSCs produced by either monolayer (Monol MTF...

Journal: :Frontiers in environmental chemistry 2023

Heavy metals are necessary at low concentration for biological activity, but they often toxic microorganisms high concentrations. Amplicon sequencing of 16S rRNA and 18S was used to investigate changes in the bacterial microeukaryotic communities an activated sludge bioreactor incrementally contaminated with nickel (Ni), copper (Cu), zinc (Zn) IC 50 value ranging from 0% 100%, as previously det...

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