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Individual effect of shear rate and oxygen transfer on clavulanic acid production by Streptomyces clavuligerus
(Springer, 2021-04-05)
The production of biocompounds through the cultivation of filamentous microorganisms is mainly affected by Oxygen Transfer Rate (OTR) and shear rate ((gamma)overdot(av)) conditions. Despite efforts have been made to evaluate ...
Experimental study of the fine particles effect on the shear strength of tuff zeolitesEstudio experimental sobre el efecto de la fracción fina en la resistencia al corte de zeolitas de tobas
(Pontificia Universidad Católica de Chile, 2020)
Experimental study of the fine particles effect on the shear strength of tuff zeolitesEstudio experimental sobre el efecto de la fracción fina en la resistencia al corte de zeolitas de tobas
(Pontificia Universidad Católica de Chile, 2020)
Average shear rate in airlift bioreactors: searching for the true value
(Springer, 2019-06-01)
The shear rate is an important bioreactor parameter that needs to be evaluated due to its impact on microorganism morphology and viability, and consequently on bioproduct formation. Airlift bioreactors, classified as ...
Rheokinetic Model to Characterize the Maturation Process of Gelatin Solutions under Shear Flow
(Elsevier, 2009-07)
The characterization of maturing gelatin solutions in shear flow is required for an appropriate formulation of food products. Under static conditions, the maturation process of gelatin solutions may be described through a ...
Avaliação do efeito do histórico de cisalhamento na curva de escoamento de óleos parafínicos
(Universidade Tecnológica Federal do ParanáCuritibaBrasilBacharelado em Engenharia MecânicaUTFPR, 2019-11-28)
Waxy crude oil has a complex composition due to the several components present in the material, such as resins and asphaltenes, which affect the material rheological behavior at low temperatures. It is well known in the ...
Shear Strength of Eucalyptus saligna Wood Joints Bonded with Polyvinyl Acetate Adhesive
(North Carolina State Univ Dept Wood & Paper Sci, 2019-01-01)
Reforestation wood is interesting for construction, due to its potential as material source for manufacturing. For this purpose, the Eucalyptus genus has resulted in a better characterization of the material properties. ...
Strain rate and temperature effect on Zr50Cu50 metallic glass under pure shear
(Institute of Physics Publishing, 2018)
We present a molecular dynamics study of the mechanical properties of Zr50Cu50 glass under pure shear. The samples have 145.200 atoms with dimensions of 40 × 20 × 2 nm in the x, y and z directions, respectively. After ...
Sparger design as key parameter to define shear conditions in pneumatic bioreactors
(Elsevier B.V., 2020-04-15)
The average shear rate (<(gamma)over dot>(av)) is a parameter used to characterize the shear environment in bioreactors, enabling comparison of the performances of different bioreactor models in terms of microorganism ...
On the shear banding flow of elongated micellar solutions
(2000)
Under steady shear flow, elongated micellar solutions show shear stress saturation above a critical shear rate due to the formation of shear bands that result in non-homogeneous flow. Long transients and oscillations ...