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 9 of 9 for “"Stress, Mechanical"”.
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Low Stress Mechanical Properties of Hydroentangled Fabrics
… (e. g. shirtings) are still limited. The low stress mechanical properties of fabrics (e. g. bending, extension, shear and recovery from extension) can be used as a measure of the suitability of fabrics to be used in clothing. In respect of the low stress mechanical properties of nonwoven …
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Influence of design and coatings on the mechanical reliability of semiconductor wafers.
We investigate some of the mechanical design factors of wafers and the effect on strength. Thin, solid, pre-stressed films are proposed as a means to improve the bulk mechanical properties of a wafer. Three-point bending was used to evaluate the laser scribe density and chemical processing effect …
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Linear generators for direct drive marine renewable energy converters
… and developing a significantly lower shear stress. Mechanical issues involved in the direct integration of linear electrical machines into the marine environment are examined. Details of two existing marine renewable energy devices are used to hypothesise about the characteristics of …
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The relationship between masticatory stress and prognathism : a finite element and morphometric study
Mechanical forces, such as mastication, influence morphological characteristics of the cranium. With varying degrees of prognathism found within and between populations, the ability to accommodate masticatory stress may vary, and this will have profound effects on final craniofacial form. The …
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Exercise Pressor Reflex Dysfunction in Hypertension
… IV) afferent fibers, which are activated by mechanical stress and the metabolic byproducts of working muscle, respectively, project to the nucleus tractus solitarius (NTS) in the brainstem. Within this nucleus, nitric oxide (NO) is produced from L-arginine via the enzymatic activity of nitric …
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Stability of tunnels in water saturated shale under cyclic stresses: investigation on the coupling between mechanical and seepage characteristics
Under the coupled effect of water and cyclic stress, the mechanical properties of mine surrounding rock deteriorate, and its permeability changes, posing challenges to tunnel excavation support and mine stability control. The interaction between water infiltration into the rock mass and externally …
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Wool fabric plasma treatment: resulting properties evaluation and applications in field
… measurement, tensile strength and low-stress mechanical properties test were selected to characterize and evaluate textile modifications carried out by plasma. Additionally, also the transformation mechanisms are enlightened. Chapter III comparatively describes the effect of three kinds …
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Phosphatase Regulation of Mechanical Stress and Aging in C. elegans
Stress and aging embody two related processes driving cellular dysfunction. In either case, environmental stimuli and genetically encoded regulatory mechanisms affect cellular homeostasis and influence adaptation. Phosphatases represent master regulators of stress signaling and modulate cellular …
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Intruder Dynamic Response in Particulate Media
… theme connecting all these phenomena is the mechanical stability of the granular material that arises from interactions at the microscopic level of the grain scale, and how this influences collective properties at the bulk, macroscopic scale. In this dissertation, we present an extensive …