Search
Now showing items 21-30 of 51
Optimization of drying-end-points measurements for the automation of a fluidized-bed dryer using FT-NIR sprectroscopy
(2004)
Automatic control of a fluidized-bed drying process depends on the availability of
an in-line sensor to provide accurate measurements of product moisture content. Nearinfrared
(NIR) spectroscopy technology provides a ...
Evaluation of NIR, FTIR and Raman spectroscopies as monitoring techniques for recombinant GFP protein production in fed-batch cultures of Escherichia coli
(2008)
The expression of green fluorescent protein (GFP) was induced and monitored in fed-batch cultures of a genetically-engineered Escherichia coli strain. This recombinant E. coli is commercially available (Bio-Rad pGLO kit), ...
A new mixing rule in the modeling of the solubility of solids in supercritical fluids
(2006)
Currently, supercritical-fluid technology in the pharmaceutical and microelectronics industries is increasingly applied to solve difficult processing problems. The solubility of a solute in the supercritical fluid is the ...
Oil accumulation via Chlorella species using carbon sources from waste
(2009-12)
One of the global issues acquiring significant attention these days is related to energy supply and demand. The irreversible decrease of fossil fuels left to supply energy and the greenhouse gases increase in the atmosphere ...
Modeling and control of continuous tumble mixing of granular materials
(2005-06)
An approach to automatic control of a continuous tumble mixer of powders is presented. The control system is based on an ideal model that describes the mixer dynamics where the controlled variables are the outlet flow from ...
Improved binary and ternary nanostructured photocatalysts for gas phase detoxification of toluene
(2005)
Photocatalysis using nanocrystalline materials with enhanced catalytic properties under ultraviolet (UV) or visible light has the potential for becoming one of the leading processes for the abatement of environmental ...
In situ diffraction studies of Ni nanostructure growth using microporous materials as supports
(2009)
Our objective is to study the growth mechanism of Ni nanostructures supported in microporous materials using X-ray diffraction. Since only the surface atoms of a catalyst are active, our aim is to find the optimum synthesis ...
Reverse micelles in supercritical carbon dioxide for pharmacological applications: a spectroscopic characterization
(2004)
The aim of this research is to characterize microemulsions in supercritical (sc) CO2 using two spectroscopic techniques (UV-Vis and FT-IR) and apply the microemulsion approach to extract impurities from a pharmacological ...
Selective nanoporous sorbents for gas based separations: Ion exchanged silicoaluminophosphates and titanosilicates
(2009-05)
Two specific sorbents were targeted in this research work: silicoaluminosphosphates (SAPOs) and titanium silicates. For the former, Na+ -SAPO-34 sorbents were ionexchanged with several cations (Ag+, Mg2+, Ca2+, Sr2+, Ti3+, ...
Sonolysis of pharmaceutical and personal care products as an advanced oxidation process for the remediation treatment of wastewater effluents
(2007)
Pharmaceutical and Personal Care Products (PPCPs) are a diverse group of chemicals, also known as xenobiotics, treated like potential environmental pollutants. Recently, PPCPs have been detected in trace amounts in surface ...