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 21 for “"Thermal regulation"”.
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Functional materials for thermal regulation
Developing thermal management materials with greater functionality for the control of heat dissipation and regulation is a fundamental step to improve the performance in many engineering systems. This dissertation presents experimental studies of heat conduction in distinctive thermal functional …
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Thermal regulation of vascularized fiber-reinforced polymer matrix composites
… cracking, creep, mass loss, and even thermal degradation at elevated temperatures. Furthermore, most polymer matrices are flammable and combustion may occur if temperatures rise high enough. Maximum service temperature is typically set by glass transition temperature (Tg) and for …
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Solar-Powered Critical Cooling: A Theoretical Feasibility Study for Human Thermal Regulation
Over the last 50 years, the leading global environmental hazard has not been hurricanes, lightning, tornadoes, floods, or earthquakes, but extreme heat events. With climate models projecting an increase in the frequency, intensity, and duration of heatwaves in the coming decades this threat to life …
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SCIENTIFIC MACHINE LEARNING METHODS FOR REACTIVE-TRANSPORT AND THERMAL-TRANSPORT PROBLEMS
… SciML frameworks for reactive-transport and thermal-transport problems. The traditional numerical methods use initial and boundary conditions for tran- sient problems and cannot use the limited time history of solutions that might be available. The framework developed for reactive-transport …
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Mechanical design and prototyping of a neonatal incubator for areas with intermittent electrical grid power
… the use of non-intensive methods, including thermal regulation. Neonatal incubators are common life-preserving devices for preterm infants in developed countries, but are under-utilized in much of the developing world due to designs intended for large hospital settings their need for constant …
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High Resolution Acetic Acid Survey and Water Vapor Radiometer
… built two WVR prototypes with new calibration, thermal regulation and backend systems. The WVR prototypes had been tested in a laboratory, on a roof and at the CARMA site to verify their performance. We conclude the WVR thermal stability and dynamic range are critical while the enormous and …
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Function and Environmental Regulation ofkpsF, the First Gene of the Region One Operon of Escherichia Coli K1
… of the region 1 operon, kpsF, is controlled by thermal regulation of a $\sigma7$0-type promoter. Thus, thermoregulation of the region 1 operon appears to involve a new mechanism controlling the in vivo expression of an important virulence factor. A promoterless non-polar kanamycin cassette …
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Cellulose Nanofoams: 3D Printing and Characterization
… focused on two primary objectives: enhancing the thermal regulation capabilities and mechanical properties of cellulose nanofibrils (CNF) nanofoams, and developing a reproducible methodology for printing customized three-dimensional (3D) structures using direct-ink-write (DIW) technology and …
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Design of mobile health tools for assessment of health and nutritional status in children
… -- Baby's weight -- Baby's height -- Baby's thermal regulation (which is an indicator of health) -- Baby's cardiovascular health (heart rate, pulse oximetry) - Middle Upper Arm Circumference (MUAC), which is an indicator of the nutritional status. The electronics and computer software for …
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Microvascular composites as a multifunctional material for electric vehicles
Electric vehicle (EV) batteries require both thermal regulation and structural protection. A novel form of battery packaging is proposed to accomplish this multifunctional objective using microvascular fiber-reinforced composites. Batteries are sandwiched between carbon fiber/epoxy panels …
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Performance of phase change cementitious composites with self-heating capacity
… novel explanation for mechanical changes from a thermal perspective, considering factors like the PCM’s chemical properties, its role in regulating hydration heat, and its compatibility with the cement matrix. New insights emphasise the PCM’s influence on concrete performance. To improve thermal …
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Cellular Activities During Aging in Mammals
… by humoral factors. Evidence for age changes in regulation at the supra-cellular, physiological level was revealed in an experimental study of the effect of ageing on the response of C57Bl/6J male mice to cold stress. Marked changes in the regulation of body processes were revealed by a study of …
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Clinical-Scale Hyperpolarization of 129Xe and 131Xe via Stopped-Flow Spin Exchange Optical Pumping
… the central difficulties found in Chapter 5 with thermal regulation, and discusses the improvements and difficulties observed as a result. Chapter 7 contrasts the tactics for high 129Xe polarization with the strategies that lead to high 131Xe polarization. Specifically this study is designed to …
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Engineering Mechanocaloric Effects and Tunable Thermal Conductivity in Amorphous Elastic Polymer Fibers
… for active heating/cooling and passive thermal regulation are in high demand for applications spanning different scales, from city planning and building heating/cooling to wearable and portable devices to miniature electronics. To advance relevant technologies and simultaneously lower …
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Self-healing materials and multinozzle printheads with embedded microvascular networks
… assisting in the repair of tissue damage, regulation of temperature, and efficient distribution of nutrients. Emulating these functional attributes in engineering contexts such as self-healing materials, microfluidic temperature regulation, and tissue engineering is gaining significant …
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Polyethylene-Based Multifunctional Composite Material for Radiation Shielding, Passive Thermoregulation, and In-Situ Fabrication for Space Exploration
… gamma rays, and secondary particles, such as thermal neutrons, are abundant in low Earth orbit (LEO) and deep space environments like lunar and Martian surfaces, where space missions are often conducted. Such sources of space radiation can induce severe damage to human tissue and critical …
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Enabling a permanent human presence beyond low Earth orbit: wearable radiation protection and enhanced science through virtual reality
… as advanced materials for dust protection and thermal regulation. The material can be integrated into advanced spacesuit designs, enabling astronauts to spend more time performing extravehicular activities while ensuring their safety during deep space travel. Through simulations and modeling …
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Thermal Adaptation in <em>Daphnia pulex</em>.
<p>Thermal adaptation in freshwater planktonic crustacean <em>Daphnia pulex</em> has been investigated by means of heatshock (35°C) experiments using individuals acclimated to different water temperatures (18, 24, and 28°C). Retention of mobility and survival during the heatshock experiments …
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The use of implantable microchips for body temperature collection in cattle
Thermal regulation via physiological processes has allowed mammals to survive and thrive in a number of diverse climates. The process of regulating body temperature is complicated and tied to many homeostatic systems in the body. That connection to different systems in the body allows for the use …
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Sacrificial polymers for rapid manufacturing of bioinspired vascular materials
… polymer composites (FRPCs). Catalyst-assisted thermal depolymerization of poly(lactic acid) (PLA) templates containing an organometallic compound enables manufacturing of complex vasculature in thermosets and FRPCs for self-healing, thermal regulation, and electromagnetic reconfigurability …
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