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 84 for “"minimum temperature"”.
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Detecting climate change and its impacts on crop yield in the continental United States
Climatic variables, temperature and precipitation in particular, play critical roles in water resources management. Changes in climate have brought up concerns stationarity in climate, a fundamental assumption used in water resources planning and management, due to the change of climatic time …
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Using Neural Networks to Provide Local Weather Forecasts
… neural networks are used to regress and classify minimum temperature and maximum gust weather variables is presented. This experiment used a dataset containing weather variables recorded every 15 minutes over the course of a year by a personal weather collection station in Statesboro, Georgia. …
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Near-Surface Air Temperature in Complex Terrain: Daily Predictions of Fine-Scale (30 m) Temperature in the Snake Range, Nevada, USA
Air temperature is arguably the most important component of the mountain climate, and scientists have been studying it for centuries. Recently, researchers have used arrays of inexpensive temperature sensors to observe and understand temperature across the landscape. Much of this work has focused …
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The lower cretaceous flora of the gates formation from western Canada
… the Gates flora is strongly seasonal with winter minimum temperature possibly below $-$15°C. Rainfall appears to have been abundant since coal deposits are common in the Gates Formation. Although low winter minimum temperature appears to be the main factor causing deciduousness of the Gates flora, …
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Estimating daily green leaf area index for corn in Virginia
… for Indiana conditions. Using daily maximum and minimum temperatures the GLAI was predicted for the vegetative stage, reproductive and grain filling stage, and the leaf senescing stage of corn. Predictions of GLAI for corn can be made on a daily basis from the day corn is planted until it is …
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Metal Hydride Heat Pumps for Thermal Management of Devices
… (MHHP) can be tuned to cover a wide range of temperatures. Most phase change materials (PCMs) have a fixed phase change temperature, but metal hydrides are more versatile since they undergo phase change at all temperatures by adjusting the hydrogen equilibrium pressure. Currently, there is …
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Parametric Study of Novel Passive Thermal Control Technology for Spacecraft
… passively change their emissivity based on their temperature, with VEMs having low emissivity at low temperatures and high emissivity at high temperatures. This property of VEMs allows for spacecraft to have reduced heater power and less extreme temperature swings without adding active thermal …
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Changes in frequency of extreme temperature and precipitation events in Alaska
Decadal mean temperatures show a warming over the past 60 years at individual stations in Alaska. This research examines corresponding changes in frequencies of extremes of temperature and precipitation based on daily data from 26 Alaskan surface weather observing stations from 1950 to 2008. …
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The relationship between temperature, rainfall, and tree swallow fledging times
Weather effects such as temperature and precipitation are known to affect reproductive success of many avian species. Weather variables can directly or indirectly influence the fledging success of nestlings. I investigated the effect of minimum temperature, maximum temperature, average temperature, …
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Development and analysis of techniques to improve air-cooling and temperature uniformity in battery packs
… thermal management system to maintain the temperature, and temperature uniformity of the battery pack and the cell within the operating limits. In this study, a novel concept has been developed to improve air-cooling and temperature uniformity in a simple battery pack by incorporating inlet …
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Taxonomia e distribuição do gênero Isotomiella Bagnall, 1939 (Collembola, Isotomidae) na Floresta da Tijuca, Rio de Janeiro, RJ, Brasil
… temporal distribution were the humidity and the temperature of the substratum and the monthly minimum temperature.
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Evaluating and correcting sensor change artifacts in the SNOTEL temperature records, southern Rocky Mountains, Colorado
… species that rely on a high elevation snowpack. Temperature records from the snow telemetry (SNOTEL) network across the Southern Rocky Mountains in the western United States have high warming rates, which may have been affected by systematic inhomogeneities in the temperature data caused by …
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Coping and adaptation of women farmers to climate variability in Maseru and Quthing districts, Lesotho
… Services (LMS) to analyse the trends in temperature and rainfall over the 1990-2020 period. The climate trends were analysed to determine whether the women farmers’ perceptions aligned with the actual climate trends. Results of the climate data showed an increasing trend in mean maximum …
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Landscape & meteorological drivers of burn severity in the southern Rockies
… weather and meteorological variables included minimum temperature, precipitation as snow, July/August precipitation, and maximum temperature. The model indicates that landscape variables were stronger predictors of burn severity, but the inclusion of weather and meteorological data improved …
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A stochastic model for daily climate
… under consideration are rainfall, maximum and minimum temperature, evaporation, sunshine duration, windrun and maximum and minimum humidity. A simple Markov chain-Weibull model is proposed to model rainfall. Three multivariate models (one proposed by Richardson (1981), two new) are suggested …
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Effect of counter ion concentration added with mixture of water and ethylene glycol on Krafft temperature of sodium dodecyl sulfate
… solution form aggregates known as micelles. The minimum temperature at which surfactants forms micelles is known as Krafft temperature. The Krafft temperature of sodium dodecyl sulfate (SDS) was measured at various counter ion concentrations in two solvent systems, water and 10% ethylene glycol. …
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Relação espaço-temporal da variação termopluviométrica e dos casos de dengue entre 2007 e 2011 em João Pessoa-PB.
… (a) precipitation data, (b) data of maximum and minimum temperature, (c) data on relative humidity of the air, and (d) cases of dengue. Climatological data were obtained from the National Institute of Meteorology (INMET) and cases of dengue were collected in the Municipal Health Department of the …
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Determination of global solar radiation using temperature-based model for different climate conditions for Limpopo Province of South Africa
… determination of global solar radiation using temperature-based model by Hargreaves and Samani for the Northern regions of Limpopo Province of South Africa. The daily maximum and minimum temperature data measured at the following six (6) stations were used: Ammondale, Mutale, Nwanedi, Roedtan, …
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Optical Temperature Monitoring of Electrical Power Transformer Networks
… optical sensor network model designed to monitor temperature of transformers at multiple substations from one central location. Fiber Bragg Grating (FBG) has been used as the optical sensing element for transformer temperature monitoring. Suitable FBG parameters and specifications have been …
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Ecological Determination of the Hour of Nest Opening by an Ant
… to day in mean opening time can be attributed to temperature differences, with the time that a given temperature was reached being the most important single variable for the autumn days studied. An equation incorporating this and the minimum temperature was sufficient to specify the mean opening …
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