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 209 for “"thermal stress"”.
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Physio-morphological effects of abrupt thermal stress on diatoms
Introduction: Increased temperature as a stress factor in aquatic environments has recently received much attention. Human population growth accompanied by expanded demands for electrical energy has resulted in increased construction of power generating facilities. Conventional fossil fuel power …
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Effects of estrogen and progesterone on tolerance to thermal stress
Analysis of variance showed that female Harlan Sprague-Dawley rats treated with E in combination with P (EP) had a significantly higher rectal temperature (Tre) than untreated control animals and those treated with E or P alone. In E treated rats, Tre was significantly higher than control animals …
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The ostracode Cypridopsis vidua : physiological response due to thermal stress.
… positive or negative effects of temperature stress. Oxygen consumption and carbon dioxide production were near the literature reportings of the Class Ostracoda, with a linear increase with increasing temperatures. Respiratory Quotients were very low. Ingestion and assimilation rates were …
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Superoxide Dismutase Activity During Thermal Stress and Recovery of Staphylococcus Aureus
The superoxide dismutase (SOD) activity during growth, following injury and during the recovery of Staphylococcus aureus was examined. During the growth cycle of S. aureus MF-31, the SOD activity decreased during the lag phase, paralleled a concurrent increase in cell counts during the logarithmic …
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Temperature and thermal stress distribution in concrete arch dams in operation
… Cyclic seasonal temperature and associated thermally induced stresses have been found to contribute significantly to long term degradation of strength and stiffness of concrete dams raising concerns about their durability (Leger et al. 1993). In this study, a critical review of the current …
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Molecular and Cellular Events Initiated by Thermal Stress in Pseudomonas Fluorescens (P7)
Made available in DSpace on 2014-12-10T22:38:19Z (GMT). No. of bitstreams: 1 7317221.pdf: 4799106 bytes, checksum: 9f6f85c5febfd4da6ad76b2ca19cbb56 (MD5) Previous issue date: 1972
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Effect of Thermal Stress on Anomalous Dimorphism of Aedes Communis (Diptera: Culicidae)
Made available in DSpace on 2014-12-09T20:27:14Z (GMT). No. of bitstreams: 1 6500784.pdf: 3890084 bytes, checksum: 87be1bdf4f69645291b7529dad9a76a7 (MD5) Previous issue date: 1964
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Effect of Thermal Stress on Dimorphism of Subarctic Aedine Mosquitoes (Diptera: Culicidae)
Made available in DSpace on 2014-12-05T21:34:06Z (GMT). No. of bitstreams: 1 6402855.pdf: 3326330 bytes, checksum: 12f054dedf290990159785066e783911 (MD5) Previous issue date: 1963
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Genetic connectivity, adaptation, and phenotypic plasticity of corals and anemones under thermal stress
… temperatures represent a severe source of stress for many marine organisms. This thesis aims to understand how corals and anemones respond to changing temperatures across different timescales and investigates mechanisms that can facilitate persistence in light of environmental change, from …
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Genetic connectivity, adaptation, and phenotypic plasticity of corals and anemones under thermal stress
… temperatures represent a severe source of stress for many marine organisms. This thesis aims to understand how corals and anemones respond to changing temperatures across different timescales and investigates mechanisms that can facilitate persistence in light of environmental change, from …
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The Response of Preosteoblasts to Combined Shear and Thermal Stress for Bone Tissue Engineering
… highly responsive to mechanical stimuli, shear stress has been extensively studied for its ability to enhance osteogenic differentiation through mechanotransduction. In addition, thermal stress has also been explored as a conditioning method to stimulate cellular proliferation, differentiation, …
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Thermal stress analysis of thermally sprayed coatings on a spent nuclear fuel waste package
The purpose of applying a thermal sprayed coating on a spent nuclear fuel waste package is to prevent moisture contacting the spent nuclear fuel for tens of thousands of years. This thesis studies some of the thermal effects that a coated waste package may experience. Residual stress from the …
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EFFECTS OF THERMAL STRESS ON SURVIVORSHIP OF BROOK TROUT (SALVELINUS FONTINALIS) IN ADIRONDACK LAKES
… probability and movement under contrasting thermal conditions. Results from candidate model set comparisons support the hypotheses that brook trout living in unstratified lakes experienced reduced survivorship in hot, dry years, while fish living in nearby, stratified lakes did not. …
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Steady state thermal stress analyses of two-dimensional and three-dimensional solid oxide fuel cells
… power. The present work characterizes the thermal stresses arising during the operation of planar solid oxide fuel cells which is a critical factor in the development of an efficient fuel cell. The thermal stresses are calculated from the temperature fields using ANSYS(TM). A sequentially …
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DATA-DRIVEN MULTI-SCALE MULTI-PHYSICS MODELLING OF THERMAL STRESS AND DISTORTION IN ADDITIVE MANUFACTURING
… multi-physics modeling framework to predict the thermal stress and distortion in AM fabrications. With the proposed approach, the rough surfaces and internal voids can be well incorporated. The coupled CFD-FEM approach are utilized to simulate the two typical powder-based AM processes, i.e., …
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Histopathology of the Developing Reproductive System of Aedes Stimulans (Walker) (Diptera: Culicidae) Under Thermal Stress
Made available in DSpace on 2014-12-09T20:27:25Z (GMT). No. of bitstreams: 1 6901404.pdf: 6450190 bytes, checksum: 9740b4de5491017182fe6c64c41c639a (MD5) Previous issue date: 1968
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The effect of quenchant characteristics on the generation of thermal stress and strain in steel plates.
… City Polytechnic was used to calculate the thermal stress and strain generated during the quenching of an infinite plate of high hardenability steel (835M30) in water, nine experimental oils and a polymer. In.the case of water, previous comparisons between experimental and calculated …
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Effect of Thermal Stress During Embryogeny on the Larval and Imaginal Morphology of Aedes Mosquitoes (Diptera: Culicidae)
Made available in DSpace on 2014-12-09T20:27:27Z (GMT). No. of bitstreams: 1 7000825.pdf: 2616333 bytes, checksum: 5f7984d48f87b7da8a65f800a64a8b72 (MD5) Previous issue date: 1969
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