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 130 for “"temperature fluctuations"”.
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Average Temperatures and Temperature Fluctuations Behind a Heated Wire
Made available in DSpace on 2015-05-12T17:04:34Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 6104280.PDF: 4760152 bytes, checksum: 806cbe5221c9b3738bd77365805d125d (MD5) Previous issue date: 1961
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Large scale sea-air energy fluxes and global sea surface temperature fluctuations
Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric and Planetary Sciences, 1984.
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The effect of freeze /thaw temperature fluctuations on microbial metabolism of petroleum hydrocarbon contaminated Antarctic soil
… and the lack of available moisture.</p><p>Cold temperatures and/or lack of moisture may not be the factors inhibiting biodegradation. Soil temperatures can exceed 20 degrees centigrade (°C) during the austral summer and melt water becomes available. However, the soil temperatures have also …
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On the Low-Frequency Current and Temperature Fluctuations Along the Shelf Break in the South Atlantic Bight
<p>Current and temperature data collected along the shelf edge in the South Atlantic Bight were analyzed using a spectral analysis technique. The power spectra of both alongshore currents and temperatures (upon removal of seasonal trends) in the mid- to lower water column suggest a significant …
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Studies of electron temperature fluctuations in the core of Alcator C-Mod plasmas via correlation electron cyclotron emission
… is believed to be attributed to turbulent fluctuations. New Correlation Electron Cyclotron Emission (CECE) experiments on Alcator C-Mod show lower levels of electron temperature fluctuations in the saturated ohmic confinement (SOC) regime than in the linear ohmic confinement (LOC) regime, …
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An investigation of large-scale heat transfer processes and sea-surface temperature fluctuations in the North Pacific Ocean.
Massachusetts Institute of Technology. Dept. of Meteorology. Thesis. 1967. Ph.D.
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Photo-identification of White-Beaked Dolphins and their relations with Atlantic Cod and sea surface temperature fluctuations in Skjálfandi Bay, Iceland
… Atlantic Cod (Gadus morhua), and the sea surface temperature fluctuations in Skjálfandi Bay, Iceland, over a period of ten years (2014-2024). The hypotheses suggest that an increase in sea surface temperature is expected to lead to a direct decline in the frequency of White-beaked Dolphins, and on …
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Bulk deposition of pesticide mixtures in a Canadian prairie city and the influence of soil temperature fluctuations on 17β-estradiol mineralization
… series of laboratory experiments under different temperature incubations. Results indicated that temperature fluctuations do not greatly affect the amount or rate of mineralization relative to the traditionally constant laboratory incubations of 20°C; however long-term freezing of soil reduced …
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Consequences of short-term water temperature variability to fish: Current and future climate change impacts
<p>Water temperature has a profound influence on aquatic ectotherms by affecting all aspects of biological organization; from chemical and molecular functioning to whole-organism and population-level impacts. Natural processes and anthropogenic activities can create conditions where temperatures …
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Thermo-mechanical behavior of steel in the continuous casting process from meniscus to caster exit
… This new constitutive model extends the temperature range of existing constitutive models for steel below the temperature range for the austenite phase. The domain of the solidifying steel strand model is a one-dimensional drilling through the strand widefaces, from the inner to the outer …
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Computational design of a novel soft-Xray-based turbulence diagnostic in NSTX-U
… in fusion research. The measurement of turbulent fluctuations is critical for comprehending turbulence transport, predicting its behavior, and ultimately controlling it to maximize fusion gain. However, there is a notable scarcity electron temperature fluctuation diagnostics, including for high …
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Ground source heat storage and thermo-physical response of soft clay
… However, seasonal heat storage can cause soil temperature fluctuations and possibly deformation of soft clays. This thesis evaluates the thermo-mechanical response of soft clays to seasonal heat storage and associated temperature fluctuations. A literature review reveals that, in normally …
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Multiscale modeling of transport mechanisms and quality changes in frozen foods during freeze-thaw cycles
… foods’ texture and taste are harmed by the temperature fluctuations during shipping and storage. The insights into the mechanisms of heat transfer, moisture migration, ice crystallization and solute diffusion are necessary to be achieved to understand the complex freezing process. The …
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The flow about a slender propellor-driven body in a temperature stratified fluid
… by a stern-propellor-driven body moving in a temperature-stratified fluid is presented. The velocity and thermal boundary layers on the body upstream of the propellor are also examined. Mean flow velocities, static pressure, flow angularity and mean temperature distributions are reported at …
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Dynamic flow quality measurements in a transonic cryogenic wind tunnel
… probe for measurement of stagnation pressure and temperature. The second is a miniature high-frequency response angle probe consisting of surface mounted pressure sensors. The aspirating probe was tested in the 0.3-m Transonic Cryogenic Tunnel (TCT) at NASA-Langley Research Center. Stagnation …
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A nickel hexacyanoferrate based thermo-electrochemical device For efficient heat-to-electricity conversion
… against the climate crisis. Currently, low-temperature waste heat accounts for more than half of the rejected waste thermal energy produced in the United States. Traditional waste heat recovery methods such as steam cycle and thermoelectrics fall short at low temperatures due to …
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Planetary Wave Activity Observed in Polar Mesospheric Clouds
… mesopause and dynamically forced small scale temperature fluctuations. This result is concluded from coupling past research observing planetary waves in vertical and horizontal winds, water vapor, and temperature fluctuations.</p>
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Numerical modeling of the early stage of cloud formation in a simulation chamber
… to obtain the droplet size distribution, temperature, pressure, supersaturation, and liquid water content. Temperature fluctuations, sedimentation of droplets, seeding with hygroscopic nuclei, and the effect of surface films in retarding the growth of nuclei are also considered.</p> <p>By …
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Effects of Temperature on Winter Energetics of Female Indiana Bats (Myotis Sodalis)
… to explain this decline is increasing cave temperatures in winter hibernacula. Altering cave temperatures can affect torpid bats by raising metabolism and causing more arousals, both of which use more fat reserves. In addition, fluctuations in cave temperatures may cause additional arousals. …
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