Now showing items 11-20 of 350
Condensing heat transfer within horizontal tubes
The purpose of this investigation was to study the effect of vapor velocity, temperature difference and fluid properties upon the heat transfer coefficient of a vapor condensing within a horizontal tube. Condensing heat ...
Vapor-liquid equilibria in the system hydrogen-nitrogen-carbon monoxide
Vapor-liquid equilibrium compositions for the system hydrogen-nitrogen-carbon monoxide were determined at -310°F, and -280°F and -240°F from 300 psig to the critical. PVT data for hydrogen were fitted to the ...
Effects of the decay of sulfur-35 on some electrical properties of cadmium sulfide semiconducting films
The vacuum behavior of radioactive and non-radioactive semiconducting films of CdS has been studied as a function of time in order to determine the effect of radioactive doping. Radioactive films containing S35 were made ...
Low temperature vapor-liquid equilibrium in light hydrocarbon mixtures: Methane-ethane-propane system
Experimental equilibrium data have been determined for 175 mixtures of methane, ethane, and propane. The investigation included temperatures from 50°F to -200°F and pressures up to the critical. A vapor recycle ...
A study of alumina silicon fluoride combinations as hydrocarbon conversion catalysts
The purpose of this work was to study the influence of certain variables in the preparation of an alumina-silicon-fluoride complex on its behavior as a cracking catalyst.
Modeling Fluid Flow Effects on Shallow Pore Water Chemistry and Methane Hydrate Distribution in Heterogeneous Marine Sediment
The depth of the sulfate-methane transition (SMT) above gas hydrate systems is a direct proxy to interpret upward methane flux and hydrate saturation. However, two competing reaction pathways can potentially form the SMT. ...
Engineering the Structual Properties of Self-assembled Polymer/Nanoparticle Capsules
A materials synthesis technique was recently developed to generate polymer/nanoparticles composite microcapsules in which synthetic polyamines such as polyallylamine and/or polylysine were crosslinked with multivalent ...
Fermentative utilization of glycerol and lignocellulosic sugars and production of ethanol by Paenibacillus macerans
With the recent volatility in crude oil prices and widespread concern regarding global warming, there is increased need for finding sustainable alternatives to petrochemical based fuels. One way to achieve this objective ...
Cofactor engineering of intracellular CoA/acetyl-CoA and its subsequent effect on isoamyl acetate production in Escherichia coli
Traditional metabolic engineering focused on pathway manipulation strategies like amplification addition or deletion of pathway to manipulate fluxes. However, cofactors play an essential role in cellular metabolism and ...
Carbon Sequestration through Biochar Soil Amendment: Experimental studies and mathematical modeling
Intentional amendment of soil with charcoal (called biochar) is a promising new approach to sequester atmospheric carbon dioxide and increase soil fertility. However, the environmental properties of biochars can vary with ...