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 15 of 15 for “"Mechanical instability"”.
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The use of joint mobilization on mechanical instability deficits for a lateral ankle sprain: A Systematic Review
… that examine the use of joint mobilizations on mechanical deficits in chronic ankle instability and lateral ankle sprain. Objective: To understand the benefits of joint mobilization in the lateral ankle sprain (chronic and acute) and determine common parameters/techniques used in practice. Data …
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Finite Element Analysis of Thermal-Mechanical Instabilities in Nonmetallic Friction Composite Material
<p>Thermal-mechanical instability (TMI) has been a research topic of interest as it focuses a lot on transportation systems. Thermal-mechanical instability was first noticed in railway and experimentally studied with a pin-to-pin or pin-to-surface setup of sliding contact. The topic has been …
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Examination of the Anterior Drawer and Talar Tilt Manual Stress Tests
… essential part of the examination is testing the mechanical instability of the ankle joint. An examiner will perform manual stress tests in order to test for the mechanical instability of a joint. The Anterior Drawer Test (ADT) and the Talar Tilt (TT) are two tests used at the ankle to determine …
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Self-Consistent Phonon Theory of Aperiodic Solids and Density Functional Theories of Freezing and Vitrification
… excitations in liquids. The theory exhibits a mechanical instability rather close to computer simulated glass transitions, suggesting the possibility that the simulations probe only linear stability because of the short simulation times.
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Fabrication and Dynamic Tuning of Periodic Structures From Holographic Lithography
… relationship, harness and utilize the mechanical instability, and explored novel applications as tunable periodic structures. In order to mimic butterfly wings which show both structural color and superhydrophobicity, 3D diamond photonic crystals with controllable nano-roughness (≤ 120 …
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Cellular responses to potential biomaterials
… cell response. Increasing surface charge and mechanical instability in these polymers inhibited cell adhesion. Based on the observations of hydrogels and PHB-copolymers a novel material, gel-spun PHB was designed for use as a wound scaffold. In vitro tests using human and mammalian fibroblasts …
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A Prototype Platform for Array Feed Development
… one order of magnitude. It was also found that mechanical instability of the primary reflector introduces a great deal of pattern rumble, even when the interferer is fixed in direction.
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Functional instability of the ankle and its relationship to the Q angle.
… known to be functionally unstable. Functional Instability (FI) can present with three pathophysiological factors; mechanical instability, proprioceptive deficits and peroneal muscle weakness. Clinical examination reveals that with increased inwards rotation and forward displacement of the …
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Capillary Force in High Aspect-Ratio Micropillar Arrays
… are important for many applications including, mechanical sensors and actuators, tunable wetting surfaces and substrates for living cell studies. However, due to their mechanical compliance and large surface area, the micropillars are susceptible to deformation due to surface forces, such as …
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Tumor metastases of the vertebral column: diagnostic and prognostic assessments for treatment
… surgeons. The Neurological, Oncological, Mechanical instability and Systemic disease (NOMS) decision-making framework has been developed to assess these four pillars in order to facilitate complex decision-making across specialties to improve treatment for secondary spinal tumors. One of …
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DESIGN, MANUFACTURING, AND CHARACTERIZATION OF SOFT, CAPACITIVE ACTUATORS AND ARCHITECTED DIELECTRIC ELASTOMERS
… provides a tuning mechanism for the onset of a mechanical instability in the structure; a shift in effective permittivity is observed due to the increase in matrix volume and the rearrangement of the electric field distribution in the cells. Additive fabrication allows rapid customization of the …
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Instabilities in membrane structures under extreme conditions
… conditions, each one leading to a specific mechanical instability of the membranes: wrinkling under quasi-static conditions and flutter instability due to dynamic conditions of wind flow. In the first part of the thesis, the wrinkling analysis is addressed by removing the hypothesis of …
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Geometrically nonlinear configurations in rod-like structures
… a well-known system referred to as the fluid mechanical sewing machine. Secondly, we consider a macroscopic analog model for the locomotion of uni-flagellar bacteria (micron scale) in a viscous fluid. Our precision experiments are compared against numerical simulations that employ the …
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The Effect of a Specialized Yoga Intervention on Characteristics of Functional Ankle Instability
… ankle sprain go on to develop chronic ankle instability (CAI). CAI is characterized by perceived instability, episodes of the ankle giving way, and/or recurrent sprains of the ankle. There are two non-mutually exclusive types of CAI: mechanical instability (MI) and functional ankle …
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Optomechanics of two- and three-dimensional soft photonic crystals
… model is developed to accurately predict this mechanical behavior. Light transmittance simulation results qualitatively explain the experimentally observed trends in the optical behavior with pH change. The elastomer based, lithographically fabricated material experiences shrinkage induced …