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Showing 1 to 20 of 84 for “"Slump"”.
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Battling the Sophomore Slump: Involvement and Religious Participation
<p>This study was created to examine the difference in means between a University of South Carolina sophomore students' level of involvement and levels of self-efficacy, meaning-in-life, and intent to re-enroll. Sophomore college students have less support than in their first year while struggling …
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A NEW PENETRATION APPARATUS FOR LOW SLUMP CONCRETE
… and its measurement in the field for low slump concrete is a problem. Hence, a new penetration apparatus was devised by K. W. Nasser to measure workability. This apparatus, which is convenient and simple to operate was used in this investigation. Tests were performed on 7 mixes: three were …
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Residual Stress Effects on Power Slump and Wafer Breakage in GaAs MESFETs
… model to explain the phenomenon known as 3power slump2, and investigate the role of device processing on wafer breakage. All three objectives were successfully met. The single crystal stress technique uses a least squares analysis of X-ray diffraction data to calculate the full stress tensor. In …
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Análisis del test de slump en lesiones musculoesqueléticas del miembro inferior en futbolistas jóvenes
… neural de la maniobra de valoración slump y las lesiones deportivas del miembro inferior. MATERIAL Y METODO: Se realizó el test de slump, en ambas piernas, a una población de 110 futbolistas sanos y asintomáticos pertenecientes a categorías juvenil y cadete de la escuela de futbol de …
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Describing the rheology of vibrated, no-slump concrete for application in 3D-printing construction
… Center for Aggregate Research) rheometer and the slump test was conducted on each mixture. The ICAR rheometer was not capable of characterizing no- and low-slump concrete mixtures. It was found that the yield stress of concrete relies on the granular phase while the viscosity relies on the cement …
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Description and Quantification of Debris Tongue Movement in a Retrogressive Thaw Slump Using Aerial and Terrestrial Photogrammetry
Retrogressive thaw slumps can modify large areas of the landscape and pose a significant threat to linear infrastructure in the Arctic. There is little published information on how retrogressive thaw slump debris tongues develop. This thesis demonstrates a novel technique for combining information …
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Logan Ridge Member of Venado Formation-Origin and Implications of an Upper Cretaceous Slump Deposit, Sacramento Valley, California
Made available in DSpace on 2014-12-09T20:34:33Z (GMT). No. of bitstreams: 1 6808152.pdf: 2724910 bytes, checksum: 92bd87e891fa4dc1773e57f53f831fc3 (MD5) Previous issue date: 1967
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The effectiveness of a percussion drill method for making concrete cube samples to assess the characteristics of precast zero-slump concrete
… proportion of its concrete is prepared with zero-slump concrete mixes. Precast finished products are load tested to confirm compliance, but the zero-slump concrete is often not tested by cube or cylinder samples, as is the case with ready-mix concrete. There is an industry practice of using the …
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A Paleolimnological Investigation into the Ecological Impacts of Permafrost Thaw Slumping on Cladocerans (Branchiopoda, Crustacea) in the Mackenzie Delta Region (Northwest Territories, Canada)
… the ecological impacts of retrogressive thaw slumping on cladocerans (Branchiopoda, Crustacea) in Mackenzie Delta Region (Northwest Territories, Canada) lakes using paleolimnological techniques to answer the following questions: 1) Does thaw slumping increase UV exposure of Chydorus? 2) Are …
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Climatic drivers of retrogressive thaw slump activity and resulting sediment and carbon release to the nearshore zone of Herschel Island, Yukon Territory, Canada
… environmental conditions. Retrogressive thaw slumps are a common thermoerosion feature along this coast, and develop through the thawing of exposed ice-rich permafrost on slopes and removal of accumulating debris. They contribute large amounts of sediment, including organic carbon and …
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Digital rheology of fresh-state concrete
… characterisation through field tests, such as slump testing, remains commonplace. This thesis combines theoretical and experimental approaches to bridge this characterisation gap and contribute a novel digital fresh-state characterisation approach. This framework utilises 3D visual and …
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Investigation of the Ability of Filters to Stop Erosion through Cracks in Dams
… result in filters that can be relied upon to slump, fill cracks, and prevent interval erosion in embankment dams. The research study involved filter erosion tests using a 4-inch diameter device and a 12-inch square device, and "sand castle" tests to investigate the tendency for candidate …
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Creating Divergence: Examining The Development Of Creativity Through Executive Function, Language And Mindset
… 2015), and is hypothesized to have significant "slumps" where the development slows, such as the "fourth-grade slump" (Torrance, 1967; 1968). The purpose of the present study was to examine the hypothesized "fourth-grade slump" in creativity and determine whether cognitive factors, such as …
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Admixture compatibility and freeze-thaw resistance of concrete prepared using commercially produced limestone calcined clay cements
… control to achieve similar flow for mortars and slump and air content for concretes. Fresh properties (like slump, unit weight, and air content), mechanical properties (compressive and flexural strength) and durability properties (drying shrinkage and freeze-thaw resistance) were documented for …
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The ergonomic evaluation of laptop use in university students: the development and test-retest reliability of the student laptop use and musculoskeletal posture questionnaire
… Student Laptop Use and Musculoskeletal Posture (SLUMP) questionnaire in undergraduate students. The questionnaire measures laptop use duration and postures for recreational, academic and employment purposes, breaks, and use of external accessories. A pilot study demonstrated that the …
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Evaluation of alternative forage species to reduce risk for cow-calf production systems in the Appalachian region
… of warm-season forages to fill the summer slump gap in production of cool-season grasses. Small plot experiments were initiated in summer of 2008 in Kentland Farm, Northern Piedmont AREC and Shenandoah AREC, Virginia. Treatments included endophyte-infected tall fescue (KY31 E+), endophyte …
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An experimental study of the effects of some commercial admixtures on the properties of concrete
… ratios and approximately at constant slump were designed without the addition of admixtures to serve as a parameter for the test mixtures. Eighteen different test mixtures were made with local aggregates. Three test mixtures for each individual admixture and combination admixtures were …
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Development of High performance Concrete Composites Using Class F Fly Ash and PCC Bottom Ash, and a Statistical Model to Predict Compressive Strength of Similar Concrete Composites
… (55 Mpa) after 28 days of curing in water with a slump of 4±½” (102mm ± 13mm) and air content between 4 and 6 percent. In order to achieve the targeted air content, an air entraining agent DARAVAIR 1400 was used. The water-cement ratio of 0.3 was maintained throughout the research and to achieve …
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The modification of arctic permafrost coastlines
… “C-shaped” depressions termed retrogressive thaw slumps which can reach lengths of up to 650 m. On Herschel Island and at King Point (Yukon Coastal Plain, northern Canada), topographical, sedimentological and biogeochemical surveys were conducted to investigate the present and past activity of …
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Use of grape pomace as a fine aggregate in concrete
… and no adjustment was made for absorption. The slump testing displayed the effects of water absorption on the pomace with the slump decreasing with an increase in pomace content. The compressive strength testing highlighted that an increase in pomace content resulted in a decrease in compressive …
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