Now showing items 51-60 of 142
Optimal feedback control of batch reactors with a state inequality constraint and free terminal time
(Elsevier, 1994)
In this paper we derive optimal state feedback laws for end-point optimization of a dynamic system where the final time is free and the system has a scalar inequality constraint. The existence of a singular region as well ...
Chemical extraction of indigo from Indigofera tinctoria while attaining biological integrity
(Kluwer Academic Publishers; Springer Science+Business Media, 1999-08)
Indigofera tinctoria was permeabilized with 20% methanol (v/v) at 25 °C and released 8±2 μg indigo g −1 dry plant material (excluding roots). This is equivalent to 42±11% of the total indican within the cells. The plants ...
Feedback regulation and the intracellular protein profile of Streptomyces griseus in a cycloheximide fermentation
(Springer-Verlag, 1990-11)
Two-dimensional gel electrophoresis (2-D PAGE) was used to study the intracellular protein profile of Streptomyces griseus in relation to cycloheximide (CH) biosynthesis. Four proteins (CR1-CR4) were found to be significantly ...
Formation of polyol–fatty acid esters by lipases in reverse micellar media
(Wiley Subscription Services, Inc., A Wiley Company, 1992-06-05)
The synthesis of polyol–fatty acid esters has strong implications in such industries as foods, cosmetics, and polymers. We have investigated these esterification reactions employing the polyols ethylene glycol, 2-monoglyceride, ...
Sensitivity improvement in 2D and 3D HCCH spectroscopy using heteronuclear cross-polarization
(Kluwer Academic Publishers; ESCOM Science Publishers B.V. ; Springer Science+Business Media, 1993-07)
A new method, which employs a sequence of heteronuclear-homonuclear-heteronuclear Hartmann-Hahn (HEHOHEHAHA) cross-polarization steps for obtaining through-bond H-C-C-H correlations in larger proteins (M r > 15 kDa), is ...
Simulation of structural phenomena in mixed-particle fluidized beds
(Wiley Subscription Services, Inc., A Wiley Company, 1998-03)
A statistical mechanical simulation was developed and used to predict the macroscopic and microscopic behavior of fluidized beds. In particular, the model was used to study structural phenomena in liquid fluidized beds ...
“Fracture” phenomena in shearing flow of viscous liquids
(Steinkopff-Verlag; Springer Science+Business Media, 1997-09)
In start-up of steady shearing flow of two viscous unentangled liquids, namely low-molecular-weight polystyrene and α-D-glucose, the shear stress catastrophically collapses if the shear rate is raised above a value ...
Olefin/paraffin separations by adsorption: Π-Complexation vs. kinetic separation
(Wiley Subscription Services, Inc., A Wiley Company, 1998-04)
Monolayer dispersed AgNO 3 on silica gel was prepared by thermal dispersion. This sorbent exhibited superior adsorption properties for olefin/parafin separations by selective adsorption of olefins through Π-complexation. ...
Application of membrane-based preferential transport to whole broth processing
(Wiley Subscription Services, Inc., A Wiley Company, 1997-08-20)
Preferential transport in adsorptive membranes can be used to selectively remove biochemicals directly from fermentation broths. During preferential transport, an adsorbing solute is selectively transported across the ...
Determination of flow profiles in porous media using shifts in gamma spectra
(American Institute of Chemical EngineersWiley Periodiocals, Inc., 1990-06)
A new technique was developed to determine the tracer location and fluid velocity in porous media nonintrusively. This technique exploits the competitive effects between the photoelectric interaction and the Compton ...