Now showing items 11-20 of 248
Experimental and mathematical analyses of mural thrombogenesis under flow
An epifluorescence video microscopy system, coupled with digital image processing techniques, and a computerized microphotometric measurement system were used to analyze the effects of two antithrombotic agents on surface ...
Videomicroscopy study of behavior of toluene in wet and dry heterogeneous porous media
A novel bead-pack micromodel has been developed to observe directly with videomicroscopy movement and distribution of toluene in the subsurface, including effects of water infiltration, variations in the water table, and ...
THE EFFECT OF BIOREACTOR CONDITIONS ON ATP SUPPLY AND DEMAND, ELECTRON FLOW, AND PRODUCT FORMATION IN THE ACETONE/BUTANOL FERMENTATION
The availability and demand of biosynthetic energy (ATP) and reducing electrons (NADH, reduced ferredoxin) have been found to be crucial in the regulation of solvent production in steady state continuous cultures of ...
A STUDY OF THE PAIR DISTRIBUTION FUNCTIONS OF MIXTURES OF IDEALIZED MOLECULES USING MOLECULAR SIMULATION
The partial pair distribution functions describe the average conformation of groups of molecules in a mixture. The functions are used in the conformal solution theories of Leland et al, who assume that the thermodynamic ...
Steady state distillation calculations: An investigation of computer techniques and an examination of results
This work has been divided into two parts. The first is concerned with methods of computation suitable for use with digital computers for distillation problems with one feed and two product streams. Two methods were ...
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.