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 19 of 19 for “"Increase Strength"”.
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FRP Confined Reinforced Concrete Circular Cross Section Seismic Applications
… Polymers (FRP), as a material with potential to increase strength and ductility of columns in conjunction with capacity design methodology, has promise for seismic design. By investigating the displacement, ductility, and flexural strength properties of FRP confined reinforced concrete circular …
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An Experimental Study of Formation of Circulation Patterns in Laminar Unsteady Driven Cavity Flows Using Particle Image Velocimeter (PIV) Techniques
… of driven cavity flow. Circulation is shown to increase strength with time and Reynolds number. PIV capture and processing settings are determined.</p> <p>Keywords: Driven Cavity Flow, Particle Image Velocimeter (PIV)</p>
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Additive Manufacturing of Soil Using Bio-Cementation
… soil treatment technique that is proven to increase strength, decrease erosion, reduce liquefaction risk, enhance slope stability, decrease compressibility, decrease swelling potential, and overall create a more competent soil. The benefits and applications of MICP are broad, and this …
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EFFECTS OF BEETROOT JUICE, PROTEIN SUPPLEMENTATION, AND RESISTANCE TRAINING ON STRENGTH IN OLDER ADULTS
Reductions in muscle strength, lean body mass, and insulin sensitivity occur with aging; a novel intervention of dietary nitrates, protein supplement, and resistance training was tested to improve these age-related declines. Beetroot juice is a dietary source high in nitrates. PURPOSE: The primary …
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Training adaptations in lower-body muscle structure and physical performance capacities of competitive surfing athletes
The overall aim of this thesis was to increase strength and conditioning coaches, and sport scientists’ understanding of the lower-body muscle structures related to enhanced lower-body physical capacities, and how to best evoke desirable training-specific adaptations. To address this aim, three …
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Powder Processing and Characterization of W-3Ni-1Fe Tungsten Heavy Alloy
… Fe, and W. The intermetallic carbide phase will increase strength but reduce ductility of the bulk material, which is not desirable. Micro and macrohardness testing show similar trends as density with a strong correlation with sintering temperature.
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Development of High Strength Dicalcium Phosphate Anhydrous Cement with Nanosilica Sol
… Anhydrous Cements to act as reinforcements to increase their mechanical properties. The aim of this study is to produce an improved composite of augmented Dicalcium Phosphate Anhydrous Cement, through a novel microwave assisted production process, and the addition of nanosilica sol as …
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Effect of Microstructure on Mechanical Properties of High Strength Steel Weld Metals
… microstructure and mechanical properties of high strength steel weld metals have been studied. Based on neural network modelling, weld metals were produced using shielded metal arc welding with nickel at 7 or 9 wt. %, manganese at 2 or 0.5 wt. % while carbon was varied between 0.03 and 0.11 wt. %. …
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Polymer impregnation and its effect on the rupture properties of leather
… a better polymer - leather interaction would increase strength. Surface properties of leather fibres were altered (using a hydrophobic agent based on a phosphate ester) to more closely match those of the polymer. This resulted in a more even distribution of polymer on the leather fibrils. …
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Modeling Microvoid Localization with Explicit Finite Element Analysis
… simulations have implications for precipitation strengthened alloys as well as metal matrix composites that utilize hard particles/phases to increase strength. The simulation capabilities introduced in this work highlight new opportunities to improve our collective understanding of ductile …
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Utilising Waste Paint and Waste Glass in Concrete
… paint to use, and subsequently analysing the strength and durability properties of concrete containing waste latex paint. A petrographic examination on the effects of waste latex paint on concrete hydrates and microstructure was also undertaken. Concrete mixes incorporating waste glass and …
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Effects of Resistance Training on aged Skeletal Muscle and Mitochondrial Function
With the aging of the baby boom population and an increased life expectancy, individuals aged 65 years and older are the fastest growing segment of our population. Aging brings about changes in skeletal muscle such as reduced muscle strength and mass, as well as cellular deficits such as increased …
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Attainable Compressive Strength Of Pervious Concrete Paving Systems
… pervious concrete system and its corresponding strength are as important as its permeability characteristics. The strength of the system not only relies on the compressive strength of the pervious concrete but also on the strength of the soil beneath it for support. Previous studies indicate …
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Muscle Dynamics as the Result of Whole Body Vibration and Plyometrics
… plyometrics are common training techniques which increase strength, blood flow, force and power. The effects these techniques have on sedentary population is unknown. It is our aim to assess the effectiveness of WBV and plyometrics on sedentary population. SUBJECTS: Three groups of nine sedentary …
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Geosynthetic Reinforced Soil: Numerical and Mathematical Analysis of Laboratory Triaxial Compression Tests
… in a soil mass to provide lateral support and increase strength. GRS is popular due to a relatively new application for bridge support, as well as long-standing application in mechanically stabilized earth walls. Several different GRS design methods have been used, and some are …
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The Effects of Whole Body Vibration on Muscle Recovery and Performance
… whole-body vibration (WBV) has been shown to increase strength and power outcomes and recently has been shown to decrease perceived pain associated with muscle soreness. Therefore, the purpose of this study is to examine the effects of WBV following exercise induced muscle damage over a period …
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Experimental Quantification of the Phonon Drag Deformation Mechanism in Metals at Extreme Strain Rates
… of shock effects. As deformation strain rates increase, additional strengthening mechanisms in metals become available, leading to a change in the underlying physics of dislocation motion and an increase in strength. This thesis first explores the mechanical properties of pure metals when …
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The Effect of Betaine Supplementation on Performance and Muscle Mechanisms
… has shown that betaine supplementation can increase strength and power performance. To further investigate the ergogenic effects of betaine supplementation a balanced, randomized, double-blind, repeated measures crossover study was designed to examine select hormonal and muscle signaling …
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Strengthening of timber beams using externally-bonded sprayed fibre reinforced polymers
… of structural elements. It may be used for the strengthening of beams, the seismic upgrade of walls panels, as well as the jacketing of columns to provide confinement. There exist several methods of FRP application for the case of structural retrofits. These include the application of …