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 39 for “"temperature reduction"”.
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Optimizing Green Space–Type Placement to Maximize Overall Land Surface Temperature Reduction
… analysis of the direct and indirect land surface temperature benefits of neighboring green spaces but did not factor in varying green space types or budget constraints. Optimal green space–type placement can reduce land surface temperature, increase surface permeability, and increase property sale …
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Evaluating heat mitigation by urban canopy in New York City’s public housing developments
… by urban canopy that aims to characterize the temperature reduction provided by urban forests and develop process-level understanding of vegetation response to heat waves in order to improve estimates of heat mitigation in the face of extreme heat.</p> <p>Surface temperatures are generally …
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Changes in Stormwater Thermal Loads Due to Bioretention Cells
… are extremely susceptible to changes in stream temperatures. Urban development and the increase in impervious surfaces alter the hydrologic cycle in urban watersheds, limiting infiltration and increasing surface runoff. Impervious surfaces absorb and store solar radiation, resulting in higher …
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The Effect of Talking on oral Thermometry
… influences of talkativeness on sublingual temperature evaluations and 2) the seeming want of experimental evidence to indicate that talking does change the sublingual temperature. The sixty-one female students who volunteered as subjects were of the health professions at a selected …
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Prediction of tool temperature during machining of Ti-6Al-4V alloy with atomization-based cutting fluid spray system
… performances including tool life and reduced temperature near the tool-chip interface in turning Ti-alloy. It is clear from these studies that the reduction in temperature and improvement in machining are mainly dependent on the interaction of the cutting fluid from the ACF spray system with …
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Physical and chemical aspects of fluid evolution in hydrothermal ore systems
… metal systems. The extent to which decreasing temperature and fluid vaporization are responsible for quartz precipitation is dependent on three related factors - the temperature of the fluid entering the two-phase system, the change in fluid temperature with respect to distance of fluid travel, …
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Self-tuning dynamic voltage scaling techniques for processor design
… of a processor since it allows for almost cubic reduction in dynamic power consumption with only a nearly linear reduction in performance. Due to its virtue, the DVS technique has been used for the two main purposes: energy-saving and temperature reduction. However, recently, a Dynamic Voltage …
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Melt Processing of Metastable Acrylic Copolymer Carbon Precursors
… fiber precursors) that occurs as melt spinning temperatures are approached. The following set of analyses was developed to define the rheological properties required for a melt processable acrylic copolymer suitable for use as a carbon fiber precursor, and accordingly facilitated development of …
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Development and Validation of a Brain Phantom for Therapeutic Cooling Devices
… long-term outcomes. To facilitate the study of temperature reduction as a function of various cooling methods, a thermal brain phantom was developed and analyzed. The phantom is composed of a granular hydrogel through which is circulated 37 degree water, representing blood perfusion. The phantom …
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Vertical greening in urban built environments
… for outdoor installations (maximum mean air temperature reduction of 0.3 K and relative humidity increase of 5.5% at the indoor atrium study, in contrast to 0.9 K air temperature reduction and 13.7% relative humidity increase at the semi-outdoor court study). The modifications nevertheless …
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Planar copper containing anode-supported solid oxide fuel cells
… copper-containing anode supported Intermediate Temperature Solid Oxide Fuel Cells (IT-SOFCs) were produced by single step cosintering. The anode and the electrolyte were realized through water-based tape casting, the cathode being added by screen printing. A 5 mol% of Lithium oxide addition …
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Process-Induced Viscoelastic Stress in Composite Laminates
… with cooling the material system from the cure temperature to room temperature. The present research examines the fundamental nature of time-dependent residual-thermal stresses in composite laminates which are caused by the extreme temperature reduction encountered during the fabrication …
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Heat loss from the upper airways and through the skull: studies of direct brain cooling in humans
Increased temperature is common after brain trauma and stroke, considered to be detrimental to outcome and usually treated with systemic cooling interventions. However, targeting cooling interventions at the head may be more logical. In addition to arterial blood, the human brain is cooled by heat …
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The softening and melting of blast furnace burden materials.
… liquid slag formation reaction and the gaseous reduction reaction. At high temperatures the permeability of burden materials was found to be strongly dependent upon the degree of reduction and the pertaining temperature. A concept, summarised by Temperature-Reduction-Isobar Diagrams, was …
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Novel metal oxide nanocomposites for oxygen storage, sulfur dioxide adsorption and hydrogen sulfide absorption
… of SO2 in the gas stream. To provide for the low-temperature oxidation of hydrocarbons and CO under a reducing atmosphere, CeO2, a well-known oxygen storage material, was modified through secondary metal oxide doping to improve thermal stability and oxygen accessibility. 20 at% substitution of Pr, …
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Analysis of the Impact of Solar Thermal Water Heaters on the Electrical Distribution Load
… depending on the site conditions such as ambient temperature, sunshine and wind speed. The simulation results indicate that the energy saving potential of a solar thermal water heater is in the range of 40-70% during winter and 60-80% during summer. Solar thermal water heaters aid in reducing the …
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Design and Evaluation of a Marine Scrubber System
… of newer engines with inherent NOX emissions reduction technologies. With typical useful service lives over 20 years, older diesel marine engines are producing disproportionate amounts of NOX emissions when compared with their newer counterparts. The development of retrofit exhaust …
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Modeling and Simulation of Coupled LNT – SCR Catalytic System under Anaerobic and Aerobic Operating Conditions
… conditions. Simulations reveal that low temperature reduction is the limiting step in determining the optimal precious metal loading. Architectural changes (sequential) in the LNT-SCR brick arrangement improved the NOx conversion and reached an asymptotic limit. Non-uniform precious metal …
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Protection of Artemia from vibriosis by heat shock and heat shock proteins
… a combined hypothermic/hyperthermic shock with temperature reduction from 28°C to 4°C for 1 h followed by incubation at 37°C for 30 min and a 6 h recovery at ambient temperature optimally enhanced resistance of gnotobiotic Artemia larvae against pathogenic vibrios and induced Hsp70 maximally. …
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23Na/51 V-NMR study of (Alpha)´- NaV2O5
… and take place around 34 K. Above the transition temperature there is one V site in the mixed oxidation state 4.5+ and there is one Na site. A consistency for a number of un-doped and very slightly doped samples of three vanadium valences is argued, confirming a charge ordering transition at …
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