Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 187 for “"Water absorption"”.
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Investigation of miniature lithium-bromide/water absorption refrigeration systems
… cooling means, like the Lithium-Bromide/Water (LiBr/H2O) absorption refrigeration system, are being investigated and produced in developed countries. However, the majority of these LiBr/H2O absorption refrigeration systems, which are available on the market, have a large cooling capacity. …
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Decreasing water absorption in and environmental analysis of alkali activated bricks
… to create these bricks, but they faced high water absorption and were not optimized under pressure molding conditions. The motivation for the work on alkali-activated bricks is based on the claim that they have a lower environmental burden, but this claim has not yet been verified for this …
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Water absorption of Wood Plastic Composite and Biopolymer reinforced with Switchgrass-fiber Biocomposite Materials
… and Wood Plastic Composite materials to water. A Biocomposite made up of biopolymer reinforced with switchgrass fibers and a WPC prepared from High density polyethylene reinforced with wood flour fillers were studied for the water absorption behaviour at three different temperatures were …
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Studies of the structure and water absorption properties of cellulosic materials by infra-red spectroscopy
… this laboratory to a study of the structure and water absorption of viscose, dicel and tricel films, prepared in a pure form by techniques develope d during the course of this work. These three materials provide a means of following how progressive acetylation (from 0% in viscose to 88.3% in …
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Water absorption and salt attack resistance of coal ash brick made of different percentage of foam content
… foam content in coal ash brick on the density, water absorption and salt attack resistance. Comparison of those parameters was made between the coal ash bricks and conventional brick. The coal ash brick mixes were formulated using industrial by-product, ground granulated blastfurnace slag (GGBS) …
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THE EFFECT OF WATER ON THE PHYSICAL PROPERTIES OF EPOXIDES
The effect of water absorption in epoxide adhesives, both in bulk and joint forms, was examined. Boiling-water immersion was found to be a suitable technique to accelerate water diffusion in bulk epoxides. The boiling-water diffusion was found to be Fickian in epoxides except for the DOM system’, …
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The production of a plastic form sulfate lignin
… by treatment with hydrogen sulfide had the best water absorption characteristics of any run made in this investigation. Lignin not treated at all had the highest relative impact strength. Stannous lignin was condensed with ½ mol, 1 mol, and 2 mols of formaldehyde in the presence of NaOH> All …
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Wax distribution quantification using digital image analysis techniques
… and application on |B strength, thickness swell, water absorption, and linear expansion of flakeboard panels were also investigated. Tests revealed that increasing the wax emulsion flow rate and application pressure had a significant affect on wax coverage. A lower amount of flake surface area was …
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Influence of ureolytic bacteria (UB) on the engineering properties and microstructure behavior of interlocking compressed earth bricks (ICEB)
… study as a partially replacement of limestone water by varying the percentage at 1% UB, 3% UB and 5% UB. Enrichment process is done at soil condition to ensure the survivability of UB in ICEB environment. This research also evaluates the effect of UB in improving the engineering properties of …
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Assessing Genetic and Environmental Influence on Traits Associated with Natto Quality
… and seed size and natto quality traits such as water absorption, water loss after steaming, seed coat deficiency, and rate of water absorption. Genotype variation was significant for all traits, but genetic differences for water loss after steaming were minimal. Planting system significantly …
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Effects of sodium chloride and sodium gluconate concentration on hydration behavior and water transport in the red-spotted toad, Bufo punctatus
Toads hydrate from standing water or moist substrates by osmotic absorbtion across the ventral skin. On land toads adopt a distinctive posture called the water absorption response (WR) to maximize contact with the substrate and facilitate water absorption. Experiments using hydration behavior on …
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Observations from working with a simple mathematical model of light absorption by small particles in the ocean
… cell types, a simple mathematical model of light absorption was constructed in MATLAB, in order to investigate the effects of depth, cell size, and water on light absorption by a layer of water containing suspended particles. The model takes chlorophyll a absorption data, cell diameter, …
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Performance Enhancement of Concrete Produced with Treated Demolition Waste Aggregates
… various treatments on Aggregate Impact Value and Water Absorption properties of recycled aggregate. It also investigated the effects of different treatments methods, batching techniques, and their combinations on mechanical performance (workability, density, compressive strength, flexural …
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An experimental study of high-performance concrete using metakaolin additive and polymer admixture
… time, workability, mechanical properties and water absorption of the concrete to find the optimum metakaolin to cement ratio (MK/C), polymer to cement ratio (P/C), water to cement ratio (W/C), and the best curing method among the wet, dry and moist, respectively. The designed concrete mixes …
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Sound absorption characteristic of lightweight brick containing Expanded Polystyrene Beads (EPS) and Palm Oil Fuel Ash (POFA)
… of this research is to identify the sound absorption characteristic of lightweight bricks containing expanded polystyrene beads (EPS) and palm oil fuel ash (POFA). In order to fulfill the standard of a lightweight brick to be used as a building element, the physical and mechanical …
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Influence of alkali resistant (AR) glass in porcelain clay for vitrified clay pipes
… result of volume shrinkage, apparent porosity, water absorption, bulk density and flexural strength were recorded for each samples. Scanning electron microscope (SEM) was used to observe the microstructural morphology of samples. It was found that the addition of AR glass can dramatically …
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Understanding the Effect of Extrusion Processing Parameters on Physical, Nutritional and Rheological Properties of Soy White Flakes Based Aquafeed in a Single Screw Extruder
… such as color, pellet durability, bulk density, water absorption and solubility indices, unit density and expansion ratio; 2) effect of changing levels of L/D ratio of die nozzle (3.33, 5.83 and 7.25), SWF (21, 29, 40, 52 and 59%) along with other ingredients, moisture content (15, 19, 25, 31 and …
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