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 47 for “"volume loss"”.
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Prescribed Fire Effects on Tree Grades and Wounds on the Monongahela National Forest, WV
… the total number and types of wounds, potential volume loss, charring, basal area, and diameters at breast height (DBH) were compared by species, burn status (burn or control), and the number of burns. Overall, A. rubrum and Q. rubra comprised 93% of the total trees exhibiting volume loss from …
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Modelling the future mass balance of glaciated Northwest Spitsbergen, Svalbard for a range of socio-economic trajectories
… region (Nuth et al., 2010; Miao et al., 2014). Loss of these glaciers has global, regional and local implications. The study transiently models the 2006-2100 climatic mass balance of glaciers in Northwest Spitsbergen for different socio-economic scenarios using a low-complexity, tractable …
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Particle breakage in sand blasting due to impact on ductile materials
… on the propagation of stress waves and the volume loss of the sand particle upon impacting an aluminum plate. Three different shapes of the sand particle and five different sizes with varying impact angles and particle velocities were chosen to analyze the influence of impact. The results of …
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Computational modeling of brittle impact erosion mechanisms
… of erosion-corrosion may result in material loss and damage. Proper analytical modeling of the erosion-corrosion processes validated by experiments is needed to estimate the extent of damage in the material.;Empirical relations are available in the literature for predicting the amount of …
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Computational models of particle size effects on brittle oxide scale erosion
… empirical relations for predicting material loss during erosion and to arrive at an appropriate material for a particular working environment. Arrival of many new materials and surface coatings being used for different applications demand analytical models that are more generic in applying …
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Aging of whiskey spirits in barrels of non-traditional volume
… OF WHISKEY SPIRITS IN BARRELS OF NON-TRADITIONAL VOLUMEByJohn D.E. Jeffery In the aging of whiskey spirits, oak barrels provide vessels for containment which are semi-permeable to the spirit and to outside air. The barrel wood itself provides extractives derived from structural polymers which have …
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Lexical-semantic parameters as robust endophenotypes of abnormal cognitive decline in ageing
… aMCI carriers as an endophenotype, grey matter volume loss in aMCI ε4 carriers/non-carriers and in controls was compared and the residual volume correlated with allele burden and with age of acquisition values for words produced in a category fluency task. Direct group comparisons showed that …
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Evaluation of analytical methods to interpret ground deformations due to soft ground tunneling
… and subsurface field measurements. Moreover, the volume loss computed by the analytical solutions is significantly reduced comparing with previous published interpretations of volume loss that were based on empirical methods. The analytical solutions prove to be a very powerful tool for describing …
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Ground movements associated with twin-tunnel construction in clay
… and vertically, and the magnitude of volume loss. The tests were conducted at 100g where the cavities represented two 4m diameter tunnels at (usually) a depth of 10m at prototype scale. The tests utilised novel apparatus designed during the research to enable the simulation of the …
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Failure mechanisms in impact erosion of ductile materials
… applications. It is defined as material loss resulting from the mechanical contact between the particle and the metal surface. Many experimental studies were reported in the past to determine the loss of the material due to these ductile impacts. Conducting experiments for numerous …
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The severity of stages estimation during hemorrhage using error correcting output codes method
… system aims at estimating the severity of blood volume loss. Specifically speaking, accompanying many traumatic injuries, severe hemorrhage, a potentially life-threatening condition that requires immediate treatment, is a significant loss of blood volume in process resulting in decreased blood …
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Effects of reinforcement materials and matrix particle sizes on mechanical properties and wear of recycled aluminum chips
… high microhardness value. The prediction of volume loss was developed based on the reinforcement of silica material. In conclusion, the recycling aluminum chips process is successfully done by using 25 + 100 μm particle size reinforced by silica, the prediction volume loss, Qpred was 5∗10−8× …
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Applications of Digital Remote Sensing to Quantify Glacier Change in Glacier and Mount Rainier National Parks
… systems were employed in performing area and volume calculations on glacial landscapes. Characteristics of glaciers from two geographic regions, the Intermountain Region (between the Rocky Mountain and Cascade Ranges) and the Pacific Northwest, were estimated for the years 1985, 2000, and …
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Hematocrit, hematocrit Regulation and its effect on oxygen consumption in the late stage chicken embryo (Gallus domesticus).
… repeated saline injections (5% of total blood volume) or repeated blood removal (5% of total blood volume). Embryos showed an ability to maintain hematocrit (~20%) despite blood volume increases up to 115% of initial blood volume. Embryos were not able to maintain hematocrit in the face of …
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Earth pressure balance (EPB) tunneling induced settlements in the Tren Urbano Project, Rio Piedras, Puerto Rico
… the construction of both twin tunnels. Volume loss is defined as the volume of ground loss as a proportion of the final tunnel volume and is measured in the plane perpendicular to the tunnel heading. Volume losses corresponding to the process of tunnel construction are identified in this …
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Climate and pro-glacial discharge interactions in the Pakitsoq region of Western Greenland.
… glaciers have experienced significant volume loss with the resulting discharge substantially contributing to rising sea level. This change has occurred during a period of pronounced variability in regional climatology. However, the meteorological parameters forcing melting have not been …
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Convective intracellular macromolecule delivery for cell engineering applications
… using mechanically-induced, transient cell volume exchange. Ultrafast microfluidic cell compressions (<1 ms) are used to cause brief, deformation-induced cell volume loss followed by volume recovery through uptake of extracellular fluid. Macromolecules suspended in the surrounding fluid …
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Estimation of changes in the volume of ice making up Gornergletscher since the little ice age maximum
Few estimates of glacier volume and changes in mass over the past 150 years areavailable for the Swiss Alps. This thesis aims to estimate changes in the mass of icemaking up Gornergletscher since the Little Ice Age maximum extent (LIAM) in 1860in the context of climate change. Gornergletscher, the …
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Binge Alcohol Effects on the Prefrontal Cortex
… functions and decision making of daily life. Loss of prefrontal grey matter resulting from heavy alcohol consumption has been documented, however this volume loss does not appear to be caused by a decrease in the number of prefrontal cortex neurons. This study aimed to determine whether the …
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