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 10 of 10 for “"aging model"”.
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Aging model for commercial polymers
Physical aging of polyvinyl chloride, high-density polyethylene, and polyester reinforced with polyester fibers specimens have been investigated. These materials are commercially available and are currently used in trenchless relining of sewer pipes. The analysis uses the effective-time theory and …
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A Multidimensional Investigation of Sexuality in Older Adults Within a Successful Aging Model
… This study developed a multidimensional model of sexual well-being by investigating sexual interest, sexual attitudes (general and age-specific), and age-specific sexual knowledge in relation to more commonly-used indicators of sexual well-being (e.g., frequency and sexual satisfaction). …
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Investigating The Effect Of Chronic Muscle Use And Disuse On Innate Immune Signaling In Skeletal Muscle
… pathways and mitochondrial parameters within a model of muscle denervation and an aging model combined with endurance training. Our results suggest that NLRP3 inflammasome signaling is responsive to alterations in skeletal muscle activity and can be attenuated with chronic endurance training. …
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Incorporation of Corrosion Mechanisms into a State-dependent Probabilistic Risk Assessment
… performed by developing a state-dependent risk model. The model has the capability of using traditional PRA tools such as event trees and fault trees to determine a state-dependent core damage frequency. Unlike traditional PRA, which emphasizes active components, this methodology was used with a …
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Effects of Natural Antioxidants on Motor and Cognitive Deficits in an Animal Model of Aging and Obesity and Dopaminergic-Like SH-SY5Y Cell Line
<p>Aging is a universal phenomenon. One of the greatest challenges faced by the elderly population is to sustain a healthy standard of living. Advancing age is associated with increased motor and cognitive deficits. Loss of balance, falls, hip fractures, and poor memory all contribute to a decline …
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Aging among baby boomers
The purpose of this study was to explore aging as it is experienced and expressed by healthy, middle-aged Baby Boomers (N = 225). This exploration involved instrument development and model testing. Age was a delimiting factor. Only people born during the baby boom (i.e., June 1, 1946 to December …
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Model development and validation of bituminous-based crack sealants
… to evaluate the short-term and long-term aging effects of hot-poured crack sealants through a differential aging test. Rheological and mechanical properties of sealants at different aging stages were monitored to characterize the aging effects. Laboratory aging of sealants was studied …
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Studying the Effects of Thermo-oxidative Aging on the Mechanical, Tribological and Chemical Properties of Styrene-butadiene Rubber
… degradation and eventual tire failure is 'rubber aging.' It can be defined as an alteration in the mechanical, chemical, physical, or morphological properties of elastomers under the influence of various environmental factors during processing, storing and use. Some of these environmental factors …
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Synergistic Environmental Aging of Glass Reinforced Polymer Composites
… composites were examined and a novel synergistic aging model was proposed in this study. Six GRPs based on glass fibers with four different polymer resins and six pure polymer thermoplastic resins were exposed either individually or in combination to ultraviolet (UV) radiation, water condensation …
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Analisi e gestione dei sistemi di accumulo dell’energia a batteria e degli impianti fotovoltaici
… basato sull'integrale proporzionale (PI) e un modello di circuito equivalente (ECM), sfruttando la dipendenza dello stato di carica (SOC) dalla tensione a circuito aperto (OCV). In particolare, viene descritto come il SOC possa essere dedotto in modo affidabile dalla tensione di rilassamento in …