Now showing items 11-20 of 504
Effect of oils, soap and hardness on the stability of foams
A systematic study of foam stability in the presence of model nonpolar oils and their mixtures with oleic acid was conducted for two commonly used surfactants (anionic and nonionic) under neutral and alkaline conditions ...
Engineering Escherichia coli for the production of polyketide-based platform chemicals
The current chemical industry produces a diverse array of industrial chemicals from a handful of highly reduced byproducts (termed "platform chemicals") derived from oil refining. However, petroleum is a non-renewable ...
EXPLICIT FINITE DIFFERENCE SCHEMES BASED ON THE MODIFIED METHOD OF CHARACTERISTICS AND THEIR APPLICATION TO THE MISCIBLE DISPLACEMENT PROBLEM
A class of convection-diffusion parabolic boundary value problems is considered in this study. When convection dominates over diffusion, the solutions of such problems exhibit an almost hyperbolic behavior. Initial conditions ...
EFFECTIVE DIFFUSIVITIES IN CHAR PARTICLES (DIFFUSION, FAST FOURIER TRANSFORM, PYROLYSIS, COAL, FLUIDIZED BED)
Illinois #6, Illinois #5, Pittsburgh #8 coal and Texas Lignite particles of size range 150-16 mesh were pyrolyzed at a heating rate of 3.8 K/min up to 900(DEGREES)C. A stainless steel annular fluidized bed reactor yielded ...
Viscosity and spin-lattice relaxation time of supercritical carbon dioxide-n-hexadecane mixtures, and molar density and isobaric heat capacity ratios for dense fluids
In part one, correlations between viscosity and proton spin-lattice relaxation time are developed for CO$\sb2$ - n-Hexadecane mixtures in equilibrium with their vapor-phase in the vicinity of critical points. A microscopic ...
Thermodynamics and kinetics studies of formation and decomposition of clathrates hydrates of methane, carbon dioxide and their mixtures using a differential heat flux calorimeter
A high pressure heat flux calorimeter in isobaric, temperature-ramping mode has been used to measure the solubility of pure methane, pure carbon dioxide and methane-carbon dioxide mixtures. The solubility measurements ...
Interplay of micro-scale flow and fluid micro/nanostructure: Solutions of DNA and suspensions of single walled carbon nanotubes
The dynamics of dilute solutions of DNA flowing in a scaled clown roll-knife free surface coating flow are investigated on multiple scales. The flow is generated between a rotating roll and a stationary glass knife. Extension ...
The constitution of silica gel
Abstract Not Available.
Assembling magnetic colloidal particles in microfluidic devices
The motivation of this research project is to assemble colloidal particles in microfluidic devices to create intelligent microstructures. We have created three types of novel structures. We have created magnetic chains ...
Novel approaches for the production of fuels and chemicals in Escherichia coli
Volatility of oil prices along with major concerns about climate change, oil supply security and depleting reserves have sparked renewed interest in the production of biofuels and biochemicals. While the carbohydrate portion ...