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Part I: Design and Synthesis of Organic Materials for Dye Sensitized Solar Cells Part II: Qualitative and Semi-Quantitative Study of the Behavior of Surfactant on Crude Oil Recovery ProcessesPinnawala Arachchilage, Gayani Wasana Premathilake 02 August 2010 (has links)
No description available.
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Biodiesel and Crude Oil Effects on Foraging Capacity of Crayfish, Orconectus RusticusGauthier, Steven James 18 July 2012 (has links)
No description available.
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BIODEGRADATION OF HIGH CONCENTRATIONS OF CRUDE OIL IN MICROCOSMSXU, YINGYING 11 March 2002 (has links)
No description available.
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Parametric Study to Determine the Effect of Operational Variables on Oil Solidifier Performance for Oil Spill RemediationSundaravadivelu, Devi January 2015 (has links)
No description available.
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A parametric evaluation of vehicle crash performanceKumblekere, Jaikanth B. January 1996 (has links)
No description available.
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One-pot catalytic reaction of crude glycerin for biopolyols and polyurethane foam productionZhang, Xiang 25 July 2011 (has links)
No description available.
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Rheology of waxy crude oils in relation to restart of gelled pipelinesFakroun, A., Benkreira, Hadj 18 September 2019 (has links)
Yes / Waxy crude oils are pumped hot but upon power cut, pumping stops, the oil cools leading below the wax appearance temperature to precipitation of the wax and the formation of a gel throughout the pipe. In such a situation, what is the minimum pressure required to restart flow, not to merely deform the gel or break it? This paper provides a solution to this problem using microscopic observations under controlled cooling conditions and rheological data conducted in constant stress mode under controlled temperature and cooling conditions and restart experiments in laboratory pipelines replicating the rheometric conditions and deviations from them to inform large diameter operation in the field. Three important findings derive from the experimental data collected: (i) A fragmentation stress , rather than the static stress that precedes it, is found to be the more accurate predictor of flow re-start pressures; (ii) Waxy crude oils gels exhibit true yield stress and yielding process but also show flow on application of the slightest stress below yielding; (iii) This flow, in the elastic region, is jagged rather than continuous suggesting a consolidation process of the crystals and their agglomerates forming the gel. In the broader context of the existence of a yield stress, the data presented here show that there is such a thing as a yield stress and the concepts of a yield stress and that everything flows are not mutually exclusive.
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Hydrodesulfurization of crude oil over Co-Mo catalysts in a slurry reactorPorgar, S., Rahmanian, Nejat January 2015 (has links)
No / In this paper, hydrodesulfurization
(HDS) of crude oil in the three-phase slurry reactor
over cobalt – molybdenum catalyst (CoMo / ɣ-
AL2O3) is studied. Effects of space velocity and
length of reactor on the conversion rate and
catalyst effectiveness for HDS process have been
investigated. Kinetics of the reaction rate for this
process is primarily and Arrhenius equation for
the rate constant is used. The results show that
the effectiveness factor for catalyst along the
length of reactor is decreased about 83%.
By increasing liquid velocity from 4 to 10 1/s,
the conversion of sulfur components is decreased
about 22% at the temperature of 523 K. At the
same temperature, by increasing liquid velocity
from 36 to 84 1/s conversion is reduced to 25%.
The results of the variation of the dimensionless
reaction rate against conversion show that with
increasing conversion, the reaction rate
decreases and the reaction is stopped when the
conversion is 100%.
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Growth of Thoroughbreds fed Different Levels of Protein and Supplemented with Lysine and ThreonineStaniar, William Burton 11 May 1998 (has links)
Currently accepted optimum protein levels for growth in the horse may be reduced with amino acid supplementation. This study investigated the effects on growth and protein status of Thoroughbred foals offered a supplement with a typical CP level to a supplement that had a lower CP level fortified with limiting amino acids. The control supplement (CS) contained 14% CP, 3.0 Mcal/kg DM, 10% corn oil, 22% soybean meal, 1.4% calcium, and three sources of fiber. The experimental supplement (LTS) contained 9% CP, 3.0 Mcal/kg DM, 10% corn oil, 3% soybean meal, 1.4% calcium, three sources of fiber, and was fortified with .6% lysine and .4% threonine. Lysine and threonine are the first two limiting amino acids in common diets of the horse. Mares and foals were fed twice daily (0700 and 1400) and kept on 30-acre pastures (mixed grass/white clover) until weaning (7 months). Weanlings continued on specified supplements and pastures for seven additional months. Physical measurements and blood samples were taken monthly. Measurements included weight, average daily gain (ADG), body condition (BC), wither height, hip height, length, girth, forearm length, front and hind cannon length, physis and fetlock circumference. Blood analysis included total protein (TP), albumin (ALB), creatinine (CREA), and plasma urea nitrogen (PUN). Effect of diet and time were evaluated by analysis of variance with repeated measures. No differences were found in physical measurements between the CS and LTS groups (ADG 0.8(0.4 kg/day, BC 4.9(0.05) for the observational period. Blood data also showed no difference for the period (ALB 2.9 ( 0.03 g/dl, TP 5.7 ( 0.10 g/dl, CREA 1.1 ( 0.02 mg/dl). These results suggest that the foals offered the LTS faired as well or better than foals on the CS. Lower levels of crude protein (CP) in the diet will result in less nitrogen pollution of pasture lands due to better utilization in the horse. By fortifying a low protein diet with the first two limiting amino acids, the protein is used more efficiently for growth and development, thereby benefiting both the horse and the land. / Master of Science
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Remediation of soiled masonry in historic structures contaminated by the Gulf Coast oil spill of 2010Vora, Payal Rashmikant 05 September 2014 (has links)
The objective of this thesis was to understand the factors that affect the selection of remedial treatments for the complex staining of masonry materials on cultural resources located in environmentally sensitive sites such as Fort Livingston, Louisiana, on the Gulf Coast of the United States and other locations impacted by pollutants including crude oil. After the Deepwater Horizon oil spill in April 2010, the brick-and-tabby Fort was stained by crude oil. The EPA recommends SWA for removal of oil from solid surfaces such as masonry; however, limited research has been conducted into SWA effective for removal of crude oil from masonry, particularly in remote and environmentally sensitive locations. Research was conducted collaboratively at NCPTT and UT-Austin to identify a series of suitable SWA and to develop methods for evaluating SWA effectiveness in the laboratory. Products were selected for laboratory evaluation that do not require long dwell times, are easy to transport to the site, can be applied with portable equipment, produce effluent that can be collected for off-site disposal, and are listed on the EPA-published NCP Product Schedule. Two sets of 36 brick samples each were soiled with crude oil from the Fort. One set of samples was artificially weathered and one set was unweathered prior to being cleaned with selected six SWA. Laboratory evaluation shows that the primary factor affecting cleaner selection for remediation of brick masonry stained by light crude oil is the extent of weathering of oil on the masonry. For light crude oil, such as that spilled in the Gulf, organic solvent-based cleaners may be most effective if cleaning is possible soon after the staining occurs. Aqueous surfactant cleaners are most effective for removing weathered light crude oil from masonry. The following SWA listed in order of performance are recommended for field trials at Fort Livingston: 1. Cytosol; 2. SC-1000; 3. De-Solv-It APC; 4. De-Solv-It Industrial followed by De-Solv-It APC; 5. De-Solv-It Industrial followed by SC-1000. / text
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