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 16 of 16 for “"oxygen deficit"”.
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Measuring anaerobic performance in children using accumulated oxygen deficit
… investigated a method of determining accumulated oxygen deficit (AOD) in children and quantified the anaerobic performance of children in a variety of ways. The first of the studies investigated the developmental profile of anaerobic performance using AOD in three groups of male children …
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A finite element analysis of dissolved oxygen drawdown and sulfate production in strip mine spoil dams due to pyritic chemical reaction
The problem of dissolved oxygen drawdown and sulfate production in strip mine spoil dams due to chemical reaction between an excess of pyrite, water, and dissolved oxygen is investigated. A finite element analysis is used to solve the diffusion-convection equation assuming steady state conditions …
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A Monte Carlo case study of random inputs in the stochastic model for pollution in estuaries
… average distributions of both the biochemical . oxygen demand and the oxygen deficit. For two types of input, the number of input particles ranged from zero to ten and was chosen randomly from a binomial distribution and a uniform distribution. Another type of entry used an input of zero or ten …
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Assessing the anaerobic characteristics of children
… of children was examined using the accumulated oxygen deficit method (Medbo et al., 1988). In this study the maximal anaerobic capacity of children was determined from bicycle ergometer tests against constant power resistances representing 110, 130, and 150 relative percent of peak oxygen …
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Anaerobic and performance adaptations to a “live high–train low” approach using simulated altitude exposure
… (MMPO<sub>4min</sub>), maximal accumulated oxygen deficit (MAOD), and VO<sub>2peak</sub>, whereas swimmers completed five incremental arm ergometer trials (VO<sub>2peak</sub>) and 400m swimming performance trials before and after LHTL. No significant changes were observed in any measured …
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A study of nitrification in lakes of the English Lake District
… phase and accounted for up to 15% of the total oxygen deficit of the hypolimnion. At similar in situ temperatures nitrification rates and nitrifying bacterial populations were greater in oxidised sediments than in the water column. Littoral sediments were more important than profundal sediments …
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A validation and feasibility study of the non-invasive measurement of oxygen delivery and consumption after elective major abdominal surgery.
… increase in post-operative metabolic demand and oxygen consumption (V̇O2), which must be met by an increased oxygen delivery (DO2). Historical studies described the increase in V̇O2 in patients after major surgery and presented evidence that the inability to meet this increase oxygen demand and …
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WATER QUALITY IMPACT OF NON-POINT SOURCE CONTAMINANTS IN SMALL TIDAL RIVERS
… storm events, BOD concentration and dissolved oxygen deficit can be dominated by the effect of non-point source contaminants.</p>
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Oxygen Generating Materials for Tissue Restoration and Regeneration
… to skeletal muscle produces a physiological deficit resulting in deterioration of tissue structure and function. The restoration or regeneration (i.e., tissue engineering) technologies required to effectively treat these injuries would benefit from provision of oxygen in situations where the …
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Assessment of the effects of greywater discharge by using streeter-phelps model
… matter from greywater may cause depletion of oxygen content in the water which lead to unpleasant odours and increased organic matter degradation time. The aim of this study is to assess the effect of greywater discharged using the Streeter-Phelps model. The first objective of this study to …
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Limnological investigations of a natural, subalpine lake in the early stages of eutrophication: Mountain Lake, Giles County, Virginia
… indicate no consistent trends. Hypolimnetic oxygen deficits, however, have continued to increase over time, and in October 1994 the first measure of anoxic deep water was observed. Concurrently with the chemical changes, shifts in macrophytes and phytoplankton have occurred. Most notably were …
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Modeling and estimation for non-invasive monitoring of intracranial pressure and cerebrovascular autoregulation
Brain tissue is highly vulnerable to unbalanced oxygen demand and supply. A few seconds of oxygen deficit may trigger neurological symptoms, and sustained oxygen deprivation over a few minutes may result in severe and often irreversible brain damage. The rapid dynamics coupled with the potential …
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Variations of pacing in simulated rowing : effects on physiological and performance variables : a thesis presented for the degree of Master of Science (Sport and Exercise Science), Massey University, Auckland
… physiologically beneficial in causing a faster oxygen uptake (V˙ O2) kinetic response, thereby reducing the initial oxygen deficit and the concomitant accumulation of fatiguing by-products. Objective: The purpose of this study was to investigate the influence of starting strategy on V˙ O2 …
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Role of sediment oxygen demand on the oxygen balance in the North Shore Channel of Chicago
When dissolved oxygen (DO) levels fall below a certain point, fish and wildlife are at risk. While many factors contribute directly to the oxygen sink, sediment oxygen demand (SOD) is suspected of being a significant factor along slower-moving channels with substantial organic sediment …
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Spatial and temporal patterns exhibited by select physicochemical and biological water quality parameters in Lake Texoma, Oklahoma and Texas.
… in hydraulic residence time. Hypolimnetic oxygen depletion rates were also observed to be affected by changes in hydraulic residence time with a long-term trend of decreasing relative areal hypolimnetic oxygen rates detected between the 1970s and 1990s. The algal assemblage present in Lake …