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Showing 1 to 17 of 17 for “"high-feed"”.
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Highly productive ester crosslinkable composite hollow fiber membranes for aggressive natural gas separations
Despite intrinsically high separation performance, conventional polymeric membranes suffer from CO₂ induced plasticization, which reduces CO₂/CH₄ separation efficiency significantly. Covalent ester-crosslinking can improve the plasticization resistance by controlling the segmental chain mobility in …
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The Phase Inversion-based Coal-CO₂ Slurry (PHICCOS) feeding system : design, coupled multiscale analysis, and technoeconomic assessment
The continuous conveying of a solid feedstock like pulverized coal into a pressurized environment is a challenging task required in multiple industrial processes. Plants based on pressurized, entrained-flow gasifiers (EFG) are a good example. EFGs are used to produce synthetic gas for the …
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A Torque Based Power Input Model for Friction Stir Welding
… decreasing the spindle speed or increasing the feed rate significantly decreases the heat input at low feed rates. At high feed rates, feed rate and spindle speed have little effect on the heat input. Process parameter versus heat input trends are verified by measurements of the weld heat …
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Unified framework to design efficient membrane distillation for brine concentration
… efficient desalination technologies for treating high salinity brine. Membrane distillation (MD) is promising for such applications since it is a scalable process that that can be coupled with a low temperature heat source to concentrate water up to saturation. More than five configurations of MD, …
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Investigation into the start-up and operation of upflow anaerobic sludge bed reactors
High-rate anaerobic biological wastewater treatment using the upflow anaerobic sludge bed (UASB) reactor technology offers the potential to reform wastewater treatment. However, the lack of clarity regarding the mechanisms responsible for self-immobilisation of the microbial consortia involved, …
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Evaluation of Factors Affecting Digestibility of the Fibrous Portion of Ruminant Diets
… a 4 x 4 Latin Square to determine the effect of feed intake level on fiber digestion and other digestion events. Alfalfa haylage, corn silage, and a corn-soybean meal grain mix were incorporated in a 45:20:35 ratio, respectively, DM basis, and fed at either 100, 85, 70, or 55% ad libitum. The …
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Transverse vibration as a fouling limitation strategy in membrane bioreactors
… (yeast, bentonite, alginate) and complex feed (secondary effluent) from an AnMBR. During the fundamental study of filtration with model solutions, it was found that transverse vibration has great potential in limiting cake formation. However, the impact of it on internal pore fouling was …
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The impact of distributed energy resources (DERs) in integrated gas-electricity energy systems
… The two pricing strategies was (1) a static feed-in-tariff combined with a static residential consumption tariff and (2) a dynamic feed-in-tariff and a dynamic residential consumption rate, both pegged to the market rate of electricity. In the context of New England, I found that adoption of …
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Yield and quality of cool-season perennial grasses for forage and biomass feedstocks in Northeast Colorado
… biofuel because of the plant's perennial nature, high water use efficiency, wide range of exploitable genetics, and its ability to be grown in diverse regions. Yield potentials are often lower for cool-season grasses, but for warm-season grasses like switchgrass difficult establishment and winter …
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Optimalizace obráběcích technologií pro speciální aplikace
Dizertační práce je zaměřena na optimalizaci obráběcích technologií pro speciální aplikace s ohledem na požadované únavové vlastnosti leteckých součástek. V teoretické části práce je detailněji popsána problematika vysokorychlostního a vysokoposuvového frézování, charakteristika integrity povrchu …
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Strategies to maximize feed quality and poultry performance
… industry to improve production. Many commercial feed mills utilize low mixer-added fat (MAF) to increase ingredient binding opportunities and pellet quality, but this technique may decrease feed nutrient digestibility. In Chapter 2, two experiments were conducted in order to determine the best …
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A suitable diet and culture system for rearing juvenile freshwater mussels at White Sulphur Springs National Fish Hatchery, West Virginia
… readily for many mussel species, achieving high growth and survival in the laboratory remains difficult. The goal of my project was to improve growth and survival of juvenile mussels by comparing diets, algae concentration, and culture systems. The first objective determined a suitable diet …
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Nature and nurture: genetic strains of broiler chickens housed in varying levels of environmental complexity
… showed lower anxiety through more broilers feeding and showing less vigilance during the attention bias test. Complex environments decreased anxiety in early life but anxiety increased to similar levels as those raised in simple environments as broilers gained weight. Anxiety, shown through …
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Effects of a dietary antioxidant blend on growth performance, liver function, oxidative stress, and meat and fat quality in pigs and broiler chickens fed diets high in oxidants
High feed ingredient prices have increased the use of by-products containing a high proportion of polyunsaturated fatty acids (PUFA) in pig and chicken feeds. This can increase the oxidation of other feed nutrients as well as causing oxidative stress in animals. Two studies were conducted to …
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Advanced Largemouth Bass Production and Stock Contribution to Small South Dakota Impoundment Fisheries
… through predation. Largemouth bass are also a highly sought‐after sport fish in South Dakota, ranking highly in surveys of anglers and competitive fishing events. Nearly one‐third of South Dakota resident anglers fish small water bodies, so maintaining small impoundment fisheries is of economic …
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Cycle Scheduling and Design of Pressure Swing Adsorption (Psa) Cycles For Carbon Dioxide Capture From Flue Gas
… effects of various parameters like the purge to feed ratio, total cycle time, cycle schedules, and high to low pressure ratio on the overall process performance is studied. A number of PSA cycles are developed that achieved greater than 90% CO2 purity and 90% CO2 recovery, at high feed …
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Identifying, understanding and harnessing the beneficial impact of nutritional interactions to optimise the performance and carcass quality of low birth weight pigs
… supply topigs through enhanced sow lactation feed intake, as well as tailoredpost-weaning feeding regimes. </p><p class="MsoNormal"><br/><b>The significance of low birth weight pigs on farms </b></p><p class="MsoNormal"><b><br/></b>Due to the lack of recent data reporting the …