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 33 for “"Insulating materials"”.
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Development of low cost thermal insulating materials
… study was aimed at developing low cost thermal insulating materials that can be used to increase energy efficiency of the houses in these informal settlements. This was done by firstly studying the properties of thermal insulation materials. Furthermore, common thermal insulating materials in …
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An Investigation of Contact Electrification and Triboelectric Charging in Insulating Materials
… charging, the electrostatic charging of materials when they are rubbed, is frequently observed in insulating materials, but poorly understood on the fundamental level. Insulating materials by definition do not have free charge carriers and it is not obvious how charge can be transferred. …
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A study on thermal conductivity of six unexplored Nigerian clays for possible refractory and insulating materials
Refractories are mineral and chemical based materials, with high heat resistance properties. Refractory manufacturing typically uses clay as the main raw material. The study aims to investigate six unexplored Nigerian clay based on the suitability of their chemical, physical, mechanical and thermal …
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Investigation of thermal management options for robots
… systems, heat pipes, thermal interface materials, thermoelectric generators, phase change materials, thermal insulating materials, etc. Three different thermal insulating materials (namely stone wool, fiberglass, and extruded polyurethane) and an air heating/cooling thermal management …
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Analysis of nonlinear electroelastic continua with electric conduction
… deformable, electromechanically coupled, highly insulating materials. Consistency is proven between the large deformation theory and the classical Poynting vector based piezoelectric small deformation theory, extended for electric conduction. A result is that electric body forces, realized …
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Montan wax from California lignites
… The wax has found extensive uses in polishes, insulating materials, candles, explosives, and special applications in the rubber industry, The increased demand for waxes for industrial uses and the limited supply of domestic origin has made the study of the sources and characteristics of …
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Hydrogen in transition metal doped transparent conductive oxide SnO₂
… developed here can accelerate the design of insulating materials where hydrogen reactions and proton transport are important.
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Charging and discharging of Lichtenberg electrets
… victims, to analyze electrical breakdown of insulating materials, for artistic purposes, and for similar applications where pulsed capacitors are commonly used.</p>
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Innovative Design Concepts for Insulated Joints
… The research focuses on using electrically insulating materials that replace the epoxy used in current bonded insulated joints. Insulated joints (commonly known as "IJ") are widely used on railways to electrically insulate rail segments from each other, while mechanically connecting them …
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An investigation on thermal performance characteristics of hollow-core vacuum insulated panels
… operational carbon footprint, high performance insulating solutions are gaining attention and invite further research in this area. Hollow-core VIPs are an alternative vacuum insulating technology that can provide thin insulating cladding solutions while avoiding some vulnerabilities of high …
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Performance of aerogel composite and foam insulations
Building insulation materials have been subjected to various temperature and humidity conditions and their thermal performance during several weeks of controlled environmental exposure has been observed. Several commercially available insulating materials (three aerogel composite blankets, two …
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Nanocomposite Dispersion: Quantifying the Structure-Function Relationship
… relationships for nanocomposite materials. This is due in part to the difficulty in visualizing the nanoinclusion and ambiguity in the description of dispersion. Understanding the relationships between the composition of the nanofiller, matrix chemistry, processing procedures and …
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PU elastomers and grafted GO/PU nanocomposite with self-healing and self-adapting capabilities for next-generation electrical insulation
The demand for next-generation dielectric materials with substantially improved reliability is spurred by the development of global energy industry, where extremely harsh operating environment for electrical and electronic materials and increasingly complex insulation system are present. In order …
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Multimaterial multifunctional fiber devices
… assembly of metal, insulator and semiconductor materials into complex geometries with small feature sizes (sub 100 nm), while maintaining high quality interfaces. Sophisticated logic and detection functions are realized through the integration of many such devices onto a chip. Conventional …
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Kerr electro-optic measurements for electric field and space charge distributions using similar and dissimilar electrode pairs
The electrical breakdown strength of insulating materials is a major limiting factor of reliability in electric power, medical devices, and other high electric field applications. Electrical breakdown strength increase results in increased reliability and energy storage in high voltage capacitors …
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Design and evaluation of elements of a life support system for mechanical counterpressure spacesuits
… included new proposed radiation protection and insulating materials as well as a passive elastic compressive layer. Results were computed for both male and female astronauts, helping to identify suit design differences that will be needed to accommodate both men and women who will conduct future …
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Radiometric partial discharge characterisation
… of two kinds: failures caused by ageing of insulating materials and failures caused by defective equipment or design. The energy supplied to small and big consumers can be interrupted for long periods causing disastrous economic losses. The origin of most failures normally is found in …
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Energy efficiency's role in a zero energy building: simulating energy efficient upgrades in a residential test home to reduce energy consumption
… envelope infiltration mitigation, advanced insulating materials, advanced window technologies, electrical plug-load reduction strategies, and energy efficient appliance options. Results of simulations show significant energy savings for various energy efficient upgrades can be achieved …
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Advances in non-planar electromagnetic prototyping
The advent of metamaterials has introduced new ways to manipulate how electromagnetic waves reflect, refract and radiate in systems where the range of available material properties now includes negative permittivity, permeability, and refractive index. While analytical and numerical tools are …
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