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 125 for “"Braided"”.
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Morphodynamics and driftwood dispersal in braided rivers
… few studies focus on driftwood in large braided rivers and limited quantitative information is available on wood transport, deposition and remobilisation in these systems. The goals of the present work are: a) characterising the spatial organisation of wood deposits and identifying …
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The Braided Way: Deep Democracy and Community
This study uses Processwork as a lens to evaluate the facilitation of social change and related design projects at all levels of scale. Social change processes are deconstructed and explored in terms of awareness of signals, roles, dimensions of rank and power, belief systems, and phenomenological …
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A study of two dimensional braided composites
A microstructure model of 2-D braided composite is developed. The fiber volume and crimp angle are evaluated by this model and are compared with experimental results. The maximum fiber volume fraction is also obtained. Effective stiffness of 2-D braided composite is obtained in a close form by the …
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Combined Tension-Torsion Loading of Braided Composite Structures
Braided composites are a class of composite materials. They feature an inter-woven structure that improves structural stability and damage tolerance. Presently, braided composites under tension and torsion loading have been studied individually. Mechanical behaviour of braided composites under …
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Slope and bifurcation on braided distributive fluvial systems
… between bifurcation and slope on large (>30 km) braided DFS by measuring long-profile slopes, cross-profile slopes, and slope ratios along active distributive channels. Using digital elevation models and Landsat images, a database of 1,253 long-profile slope values, 1,245 cross-profile values, …
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Development of bioabsorbable braided vascular scaffolds for the intracranial circulation
An intracranial (or brain) aneurysm is a life-threatening disease that affects more than 3% of the population. The treatment techniques of cerebral aneurysms have significantly improved in the past decade, transitioning from open surgical procedures to less invasive endovascular procedures. A …
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Numerical Constitutive Models of Woven and Braided Textile Structural Composites
Equivalent, three-dimensional elastic moduli are determined from unit cell models of balanced plain weave, 2D braid, 2D triaxial braid and 4x4 twill textile composite materials consisting of interlaced or intertwined yarns. The yarn paths are modeled with undulation portions, in which one yarn …
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Energy absorption performance of braided basalt reinforced composite tubes under axial loads
… absorption performance of novel and eco-friendly braided basalt composite tubes associated with axial crushing loadings. A series of thin-walled and sandwich composite tubes were fabricated using braided basalt/epoxy composite and expanded polyurethane foam. The axial crushing tests of these tubes …
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They, Too Sing America : Braided Narratives About Immigrants and the American Dream
… States. Furthermore, this thesis uses both braided narratives and braided genres to examine three generations of an immigrant family and its experience with America. Collectively, this work assesses the role of the American Dream and how it motivates or complicates immigrant life in the …
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Coend elements of a Hopf algebra in a braided rigid monoidal category
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2026-05-01
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Axial, flexural and torsional rigidities of two-dimensional braided fibre composite medical catheters
The development of a one-piece braided model catheter with the same rigidities as the combined medical catheter-guidewire system presently employed during cardiovascular catheterization procedures is the principal goal of this research. This will result in a significant reduction in the time …
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The kernel of doubt : agricultural biotechnology, braided temporalities, and agrarian environments in India
Genetically modified (GM) cotton, Bt cotton was introduced in India in 2002 through a joint venture company, Mahyco-Monsanto Biotech (India) Private Limited (MMB). It is a collaboration between the Indian agricultural company, Maharashtra Hybrid Seed Company (Mahyco), and the U.S. based …
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Non-cohesive bank migration in meandering rivers and bank accretion in weakly braided rivers
… in the dissertation is bank accretion in weakly braided streams, with special attention given to bank accretion as a mechanism that can lead to general channel geometry adjustment. Bank accretion in single-threaded meandering streams occurs through the gradual colonization of the high elevation …
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Modeling, Analysis, and Experiments of Inter Fiber Yarn Compaction Effects in Braided Composite Actuators
The braided composite actuator is a pressure-driven muscle-like actuator capable of large displacements as well as large blocking forces. It consists of an elastomeric tube reinforced by a sleeve braided by high performance fibers. In addition to the actuation properties, this actuator can also …
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Development of a Progressive Failure Finite Element Analysis For a Braided Composite Fuselage Frame
Short, J-section columns fabricated from a textile composite are tested in axial compression to study the modes of failure with and without local buckling occuring.The textile preform architecture is a 2x2, 2-D triaxial braid with a yarn layup of [0 deg 18k/+-64 deg 6k] 39.7% axial. The preform was …
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Braided rivers: an exploratory study combining flume experiments and the analysis of remotely-sensed data
Braided rivers exhibit extremely complex and dynamic morphologies as their multiple channels are constantly re-worked. The research reported in this thesis explored a number of properties of braided river form and dynamics and some controlling factors through three individual but complementary …
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