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 “"Metabolic Heat"”.
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Calorespirometric Evidence for Adaptation of Blackbrush and Shadscale to Growth Season Temperatures in Cold Deserts
… species were collected from several localities. Metabolic heat and carbon dioxide production rates were measured with calorespirometry on tissue from field-grown plants and on seedlings at temperatures from 5 to 35°C at 5°C intervals. Blackbrush adapts to higher temperatures earlier than does …
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Mobile power plants : waste body heat recovery
Novel methods to convert waste metabolic heat into useful and useable amounts of electricity were studied. Thermoelectric, magneto hydrodynamic, and piezo-electric energy conversions at the desired scope were evaluated to understand their role and utility in the efficient conversion of waste body …
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Effects of nitrogen and calcium on photosynthesis and metabolic activity in Acer saccharum in the Catskill Mountains
… Photosynthesis was measured with a LiCor 6400. Metabolic heat rate was measured with a MC-DSC calorimeter. While some sampling periods showed significant responses to some treatments, the study as a whole suggests the addition of calcium and/or nitrogen had minimal effects on photosynthesis or …
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Thermal physiology of selected African ungulates with emphasis on the physical properties of the pelage
… thick pelage provides good protection against heat loss and thus extends the ambient temperature limits which the animal can tolerate without the need to increase metabolic heat production. Schmidt-Nielsen (1959) has shown that a thick pelage can also be advantageous to an animal in a desert …
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Effects of Pre-Exercise Ice Slurry Ingestion on Physiological and Perceptual Measures in Athletes with Spinal Cord Injuries
… exercise may increase the storage capacity for metabolic heat production, thereby improving exercise performance. The purpose of this study was to investigate the effects of pre-exercise ice slurry ingestion as a precooling method in elite athletes with SCI during a match simulation. Employing a …
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Thermoelectric Energy Conversion: First-principles Simulations, Energy Harvesting and Deep Cooling Systems
Thermoelectric devices can directly convert heat into electricity and electrical power into cooling or heating without moving parts. The energy conversion efficiency is dominated by the materials’ figure of merit zT, which is linearly proportional to the electrical conductivity, the square of the …
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The Contribution of Body Morphology to Individual Variability in the Thermoregulatory Responses to Exercise, and the Effect of Altered Skin Blood Flow on Heat Loss Potential
… and the influence of skin blood flow on heat loss potential during severe heat stress. Study 1 investigated whether unbiased comparisons of changes in rectal temperature (ΔTre) should be compared at a fixed absolute rate of heat production (Hprod; W) or a fixed Hprod per unit mass (W/kg), …
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The role of the endogenous opioid system in thermoregulation during exercise
In man the metabolic heat produced during physical exercise stresses the thermoregulatory system, particularly if hot, humid environmental conditions prevail. It has recently been postulated that endogenous opioids may play a role in regulating body temperature at rest and because it has also been …
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Effects of high incubation temperature on the developing small intestine and yolk sac of broiler chicks with insight into goblet cell development in the small intestine early posthatch
… growth rate can lead to the release of more metabolic heat inside of the egg toward the second half of incubation because the embryo shifts to a homeothermic state. More heat being released into the incubator can cause the incubation temperature to rise if the incubator is not electronically …
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A Dynamic Model Of The Human/cooling System/clothing/environment System
… body compensates well for moderate climatic heat stress, but artificial environments often block or overwhelm physiological defense mechanism. Personal protective equipment (PPE) is one of sources of heat stress. It protects individual from chemical, physical, or biological hazards, but the …
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Irreversible Electroporation for the Treatment of Aggressive High-Grade Glioma
… conductivity due to electroporation and joule heating, as well as biologically relevant processes such as blood perfusion and metabolic heat. We also provided a method to isolate the IRE effects from undesired thermal damage in models that were validated with real-time temperature measurements …
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A numerical protocol for death-time estimation
… phantom consisting of several hundred tissues. Metabolic heat generation (QQmm) and blood perfusion (wwbb) parameters were applied to all thermogenic tissue using the Pennes BioHeat Model. The study demonstrated that the antemortem axial temperature distribution was nonlinear, that tissue …
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Social life-styles in caterpillars: Behavioral mechanisms and ecological consequences
… for 2.5-3K. Temperature gains are based on metabolic heat production (Chapter 4). Under field conditions grouped caterpillars are able to stabilize their body temperatures between 30-35°C independent of ambient temperature as long as solar radiation is sufficient. Optimal body temperatures …
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Aspects of the energetics and renal physiology of some African arid-adapted rodents
… most arid-adapted rodents had a reduced basal metabolic rate. When G. pusillus was maintained on an ad lib. food and water diet, its daily energy expenditure was similar to that predicted by mass. This increased to 116% of the expected allometric value when deprived of water. On a diet of …
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Development of a novel bioreactor and systems for suspension cell culture in biopharmaceutical production
… clearance efficiency and the position of the heating element. Another important aspect of the prototype design was incorporating an external magnetically-coupled motor drive which assisted in not only in aseptic handling but also reduction in mechanical stress and generation of fewer particles …