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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 61 for “"Winter conditions"”.
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Winter conditions of vegetation
Made available in DSpace on 2017-11-30T22:46:15Z (GMT). No. of bitstreams: 2 5956263.pdf: 1167439 bytes, checksum: 0847d9fb7c168b4a572d7c9e04dd670c (MD5) license.txt: 4813 bytes, checksum: 715c4321821a960fa1a1e91d2ac7ebce (MD5) Previous issue date: 1893
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Evaluating survival of the crayfish Orconectes nais exposed to hypoxic winter conditions
Call number: LD2668 .T4 BIOL 1987 K52
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Evaluating survival of the crayfish Orconectes nais exposed to hypoxic winter conditions
Call number: LD2668 .T4 BIOL 1987 K52
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Non-growing season CO2 fluxes of a boreal fen – key drivers and responses to anomalous winter conditions
… In 2016, a strong respiration release during the winter-spring transition period turned the annual balance of CO2 to positive, resulting in the highest emission of CO2 during the entire study period. The period of anomalous respiration alone offset 38% of the following growing seasons CO2 uptake. …
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CHARACTERIZATION OF VARYING LOCAL WINTER STREAM HABITAT AND ITS IMPACT ON COLDWATER FISHES
… are subject to widely varying in-stream winter conditions. Understanding the relative importance of the different factors that contribute to these winter conditions is important in predicting how environmental shifts will affect fish communities. In this study, I examined stream sections …
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Ocean Acidification and Seasonal Temperatures Counter Positive Novel Species Interaction and Warming Effects on Tropicalising Temperate Fish Communities
… poleward either to escape thermally unsuitable conditions or to invade previously inaccessible temperate environments. Climate-driven species redistributions have facilitated range-shifting and local species to interact for available resources. These novel species interactions can modify the …
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Power and energy storage requirements for ship integration of solid-state lasers on naval platforms
… of laser light through different atmospheric conditions. Due to the amount of energy required to power these laser weapons systems and the limited amount of available energy onboard ships, different energy storage systems need to be explored. For this research, two locations were studied: the …
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The Control of the Root to Shoot Ratio of Radish (Raphanus sativus L.)
… to shorten the growing period for radish under winter conditions. An increase in air temperature gave differing results depending upon the radish variety grown. Varieties Robino and Cherrybelle both showed an increased dry matter production but only Robino had an increased root/shoot ratio. …
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Thermal pollution modeling of the New River
… summer (high temperature, low river flow) and winter (low temperature, high river flow) conditions were modeled. The model plume in summer conditions was more comparable to the power plant than for the winter conditions, therefore a standard multiple port diffuser was tested in the river model, …
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Design and development of a novel DC/DC bidirectional converter with dual solar/PV-based snow removal and EV charging functionality
… and testing the system under various climatic conditions is presented validating the usefulness of the proposed converter to be used in solar PV systems under extreme winter conditions.
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Some Limnological Conditions Relative to Winter Kill of Fish in Ice-Covered Representative Farm Ponds in Eastern South Dakota
… aquatic animals and plants, commonly known as winter kill. Winter kill is usually a result of dissolved oxygen depletion in the water, although under certain conditions lethal agents may cause death. The basic causes involved in winter kill are known, but many limnological relationships remain …
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THE EFFECT OF WINTER VERSUS SUMMER RUNNING ON LOWER EXTREMITY MUSCULOSKELETAL INJURY RATE IN RECREATIONAL RUNNERS
… rates, this suggests that exposure to cold conditions may increase injury rates. The main purpose of this study was to determine if there is a difference in musculoskeletal injury rates in the winter compared to the summer months in recreational runners. The participants were surveyed on …
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Physiological Plasticity and Ecology of the Yellow Mud Turtle (Kinosternon Flavescens) During Hibernation
… Non migratory species that hibernate during the winter months are particularly likely to experience reduced geographical. I assessed the degree to which hibernating yellow mud turtles (Kinosternon flavescens) were affected by warming winter temperatures. Temperature data collected by data loggers …
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On the midwater fish faunas of Gulf Stream rings with respect to habitat differences between slope water and northern Sargasso Sea
… middle of a gradient in faunal composition from winter conditions in Slope Water to fall conditions in the Northern Sargasso Sea. The midwater habitat is modeled as two layers, and the ring environment as a hybrid habitat consisting of a surface layer of Northern Sargasso Sea habitat and a deep …
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Solar drying of green oak (Quercus spp.) lumber
… of red and white oak 5/4 inch lumber during winter conditions in Blacksburg, Virginia. The solar kiln was of a semi-greenhouse type, having a capacity of 150 board feet and provided with an air circulating fan. Both the south facing vertical wall and the south facing sloping roof (45° to the …
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EFFECTS OF WINTER AND SUMMER THERMAL VARIABILITY REGIMES ON GROWTH AND METABOLISM IN BROOK TROUT (Salvelinus fontinalis)
… daily thermal variability is increasing. Such conditions could prove challenging for brook trout and other ectotherms that are adapted to small temperature ranges. This research investigates how the growth and metabolic capacities of brook trout respond to long-term exposure to thermal …
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Monitoring Hydrology in Created Wetland Systems with Clayey Soils
… complex seasonal hydroperiod ranging from ponded winter conditions to deep (< -50 cm) summer dry down. The site also exhibited epiaquic (perched) conditions following summer and fall precipitation events. Apparent water levels in deep (> 1 m) piezometers exhibited an unusual hydroperiod with …
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An indoor public space for a winter city
Winter is a marginalized season in North American design. Even though most cities in the northern United States and Canada have winter conditions-snowfall, ice, freezing temperatures, and long nights-for substantial portions of the year, their built environments do little to embrace their climate. …
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Environmental controls in the seasonal succession and synchronization of development in some pond species of damselflies (Odonata: Zygoptera)
… C. resolutum and Enallagma boreale which overwintered as nymphs, emerged simultaneously and synchronously commencing during the last week of May. They were followed by Lestes disjunctus disjunctus, L. unguiculatus and L. dryas in late June and early July, then by L. congener near mid July. …
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Competition Between Native and Exotic Daphnia
… summer, late summer, and fall of 1997, and the winter of 1997-98. Competition was assessed by looking at the ending densities, population growth rates, egg ratios and birth rates of each species when alone, and when in combination. Dye tests indicated water exchange rates in the cylinders of …
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