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 58 for “"SMPS"”.
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Load Balancing Regular Meshes on SMPS with MPI
Domain decomposition for regular meshes on parallel computers has traditionally been performed by attempting to exactly partition the work among the available processors (now cores). However, these strategies often do not consider the inherent system noise which can hinder MPI application …
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Ultra-fine soot investigation in flames
… nm) using a Scanning Mobility Particle Sizer (SMPS). The SMPS particle size results were compared to results obtained by thermo phoretic sampling and Transmission Electron Microscopy (TEM). SMPS particle concentration results were compared to mass measurements obtained by filter collection and …
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Thermo-responsive and electroconductive shape-memory polymer composites for useful applications
Shape-memory polymers (SMPs) are stimuli-responsive materials with the ability to undergo a large recoverable deformation upon the application of an external stimulus. International research interest into the shape-memory effects (SMEs) of these polymers is rapidly growing. Unique polymer …
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Understanding the role of aquatic plants in stormwater management pond performance in Oshawa, Ontario, Canada
Stormwater Management Ponds (SMPs) are engineered to receive, store, and treat stormwater runoff before it enters receiving waters in urbanizing landscapes. While these systems are not considered natural, they are typically colonized by aquatic plants. Although submergent and emergent vegetation is …
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Development of novel low noise switch-mode power supply designs for high fidelity audio power amplifiers.
… these problems, Switch-mode Power Supplies (SMPS) incorporate high speed switching transistors that allow for much smaller power conversion and energy storage components to be employed. In addition the low power dissipation of the transistors in the saturated and off states results in higher …
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Shape memory polymers with improved shape recovery properties in focused ultrasound fields
Shape memory polymers (SMPs) have garnered significant attention for their remarkable ability to recover deformations upon external stimulation, making them highly suitable for biomedical devices, soft robotics, and deployable systems. Among the various activation mechanisms, focused ultrasound …
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Corporate Social Responsibility in the Brazilian Lodging Industry: A Perspective of Small and Medium-Sized Properties
… small and medium-sized accommodation properties (SMPs) in a developing country, Brazil. Findings then were compared to the CSR activities of the top 150 lodging companies worldwide. For the comparison purposes, 150 Brazilian SMPs were selected randomly and content analysis done of 150 individual …
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Hierarchical design of morphing shape-memory polymer structures via topology optimization
Shape memory polymers (SMPs) are a class of active polymeric materials that have the ability to regain their original undeformed configuration from a deformed state under the application of an external stimulus. In this study, we focused on the design optimization of SMPs that are actuated by the …
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Shape memory polymer adhesive gripper for pick-and-place applications
Over the past few years, shape memory polymers (SMPs) have been extensively studied in term of their remarkable reversible dry adhesive properties and related smart adhesive applications. However, these exceptional properties of SMPs have not been exploited for pick-and-place applications, which …
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Development of a finite element method for light activated polymers
Traditional Shape Memory Polymers (SMPs) belong to a class of smart materials which have shown promise for a wide range of applications. They are characterized by their ability to maintain a temporary deformed shape and return to an original parent permanent shape. The first SMPs developed …
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Medium is the Message: Unraveling the Social Media Platforms' Effects on Communication and Opinions
… rise and evolution of Social Media Platforms (SMPs), understanding the interplay between platform features and user behaviors is both critical and complex. In this dissertation, we aim to elucidate the relationship between SMPs and society, with the ultimate objective of fostering a healthier …
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Mechanical designs that explore the applicability of shape memory polymers
… versions of epoxy-based shape memory polymers (SMPs) were tested and proven for their adhesive benefits in recent works. A heated dry adhesive system displaying strong adhesive performance on a variety of chemically dissimilar adherend was developed. This thesis explores the mechanical designs …
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Effects of oxygenated fuels on DI diesel combustion and emissions
… diesel fuel. A scanning mobility particle sizer (SMPS) was used to evaluate changes in particle size distributions, in addition to gravimetric filter and oxides of nitrogen (NOx) measurements. Engine emissions tests were conducted using a Ricardo Hydra MK IV direct injection (DI) diesel engine. …
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Thermo-mechanical characterization of carbon-reinforced shape memory polymer
… memory alloys (SMAs), shape memory polymers (SMPs) and shape memory ceramics. The most well-known and widely used SMMs are shape memory alloys. They have exceptional strength and shape memory characteristics with the most far-reaching applications. SMPs though have several advantages over SMAs …
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NOVEL SHAPE MEMORY AND MULTI-SHAPE MEMORY POLYMERS FOR BIOMATERIAL APPLICATIONS
… In this work, advanced shape memory polymers (SMPs) that respond to non-thermal triggers and multi-shape memory materials capable of multiple topographical transitions were developed for advanced active cell culture platforms. </p> <p> The first part of this dissertation describes the …
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Dynamics of smart materials in high intensity focused ultrasound field
… in this research; shape memory polymers (SMPs) and piezoelectric materials. SMPs have the ability to store a temporary shape and returning to their permanent or original shape when subjected to an external trigger. On the other hand, piezoelectric materials have the ability to convert …
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Influence of static and dynamic topography on osteoblast proliferation and maturation
… of smart materials called shape-memory polymers (SMPs), which can change their shape via changes in temperature or mechanical stress. This study follows the creation of one such temperature-sensitive SMP, benzyl acrylate-benzyl methacrylate-1,12-dodecanediol dimethacrylate, which can be compressed …
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Hybrid SC-Inductive Based Topologies for Low-volume High-efficiency Switched-mode Power Supplies
Switched-mode power supplies (SMPS) are widely used as the voltage or current regulators for electronic devices. The most commonly used SMPS are inductive converters based on conventional buck and boost converter topologies due to their simplicity and relatively high power density and efficiency. …
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Exploring the Biomedical Applications of Polyurethane-based Foams, Films, and Hydrogels
<p>Shape memory polymers (SMPs) are a class of smart materials that can be temporarily stored in a deformed shape and can actively recover their original shape upon exposure to an external stimulus, such as heat, magnetic field, moisture, pH, light, or electric field. The ability of SMPs to change …
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Shape Memory Polymers as 2D Substrates and 3D Scaffolds for the Study of Cell Mechanobiology and Tissue Engineering
… In this work, shape memory polymers (SMPs) were employed to develop dynamic 2D substrates and 3D scaffolds that undergo programmed changes in shape under cell compatible conditions. These substrates and scaffolds were applied in vitro and in vivo to demonstrate their potential as …
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