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 1837 for “"Material Properties"”.
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Material properties of actin filament bundles
… then inter-related by simple mechanical models. Material properties of filaments and bundles are measured using a combination of optical tweezers, electron and fluorescence microscopy. We find that scruin bundles reconstituted from acrosome fragments display an ordered structure, with a bending …
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MATERIAL PROPERTIES OF AORTA FROM BIAXIAL OSCILLATORY TESTS
This project addresses characterization of the material properties of aortic tissue. Understanding of these properties is important for a variety of studies including tissue engineering, effects of aging and diseases, stents engineering, and traumatic aorta rupture. The goal of the presented …
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Optical and material properties of varnishes for paintings
… that determine the relationships between the material properties of varnishes and their effect on the appearance of paintings.
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Recycling baler material properties for safer baler operation
… their body into the jamming area and remove the material that is causing the jam. While lockout and tagout procedures reduce the risk of hazardous energy being released, they can still be easily bypassed, ignored, or forgotten. Recent efforts to reduce machine-related injury and death involve the …
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Material properties related to fire spalling of concrete
… and are presented in this thesis. The thermal properties at high temperature have been investigated using the Transient Plane Source (TPS) technique. Measurements of temperature in the cross-section of selfcompacting concrete with the addition of polypropylene fibres (PP-fibres) during fire …
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Assessment of material properties in bone surrounding microdamage
… or fatigue, leading to impaired tissue material properties and in some instances atypical femoral fractures.</p> <p> In these studies, we assessed the effects of acute fatigue, fatigue induced remodeling, and fatigue microdamage with remodeling suppression using the clinical BP, …
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Novel methods to predict solid-state material properties
Solid-state materials find ubiquitous use in modern technology - from semiconductors in electronics to steel in buildings and superconductors in MRI machines. Theoretical understanding of the atomic-scale behaviour of these materials can be leveraged to design new materials with desirable …
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Predicting Material Properties with Machine Learned Interatomic Potentials
… molecular dynamics. We extract thermodynamic properties connected to chemical reaction dynamics, kinetics and transition barriers of physical processes that are not in the learned phase space. We find that GNNs outperform SNAP as more robust ML-IPs and connect this to the importance of …
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Tensile Material Properties of Human Costal Cartilage Perichondrium
… of this study was to evaluate the tensile material properties of human costal cartilage perichondrium at two loading rates for a range of subject demographics. Fifty-six (n=56) samples containing the fibrous layer and chondrogenic layer (i.e., two-layered samples) were fabricated from …
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Characterization of Heterogeneous Material Properties of Aorta Using Nanoindentation
Arterial mechanical properties have received increasing attention in the past few decades due to their vast effect on predicting cardiovascular diseases and injuries. The heterogeneity of thoracic aortic tissue was characterized in terms of viscoelastic material properties and correlations were …
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Design of microstrip antenna based on different material properties
… shows a little bit differences for both of the material substrates. Comparison between simulation and measurement result has been made.
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Exploring the material properties of small scale folded structures
… has been little formal exploration into the materials properties of these structures. Three point bending tests were performed on beams made of the materials and cross-sectional geometries of current designs to determine the bending stiffness of the printable beams currently found in …
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Enhanced earthing performance by improved design and grounding material properties
… em x 11.5 em and filled with selected grounding material, attached with a grounding electrode. Meanwhile, the grounding electrode was reviewed in terms of thermal conductivity electrode material, variation of soil resistivity with the electrode's depth, and effect on the number of grounding rods …
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Modeling Material Properties of Natural Fiber-Polymer (Grain Bags) Composites
… results in inherently inconsistent mechanical properties of natural fibers resulting in varied mechanical properties for NFCs. The main focus presented herein involves critically analyzing available data on natural fiber composites to develop usable statistical models to predict major …
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Modeling of flexible fiber motion and prediction of material properties.
This work employs the rod chain model of Wang et al. (2006) to study the motion of discrete flexible fibers. Results are presented for both individual fibers and a stochastic distribution of fibers to study the variations in the transient effects between the rigid and the flexible fiber systems. …
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Dynamic modulation of material properties by solid state proton gating
… is an effective means to dynamically tune material properties. In this thesis, we establish a pathway towards this capability by utilizing the simplest ion known to mankind: the proton. We demonstrate for the first time dynamic control of magnetic properties in an all-solid-state …
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Material properties of skin in a flying snake (Chrysopelea ornata)
… For this reason, characterizing the mechanical properties of the skin may give insight to the functional capabilities of the skin during these gliding and landing behaviors. Dynamic and viscoelastic uniaxial tensile tests were combined with a modified particle image velocimetry technique to …
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Statistical Modeling of Knee Morphology and Material Properties Considering Diverse Populations
… significant differences in both shape and material properties across these demographic groups were detected. Notably, the analysis revealed literature-supported differences in bone size between the sexes and changes in bone material quality with age. While significant differences in bone …
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