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.
Results
Showing 1 to 14 of 14 for “"flow states"”.
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Chaos Control of an Open Shear Flow: A Novel Control Strategy and its Experimental Demonstration in an Axisymmetric Jet
… housed in a low-noise anechoic chamber. Periodic flow states involving various sequences of vortex ring formation and their pairings were achieved using open-loop and closed-loop control. In contrast to conventional, linear, control approaches that use brute-force high-amplitude excitation, a …
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Peripheral perfusion imaging modeling
… MHz using phantoms with blood-mimicking fluid flow within cellulose microfibers. A variety of flow states are assessed to measurement sensitivity and flow accuracy. Comparisons between phantom and preclinical images show that peripheral perfusion imaging can be reliably achieved without …
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Designing for Deep Engagement
Flow state represents the quality of meaningful experience-- an effortless, depth of attention that is often undermined in our interrupt-driven, modern society. In this thesis, I present four novel interventions to promote states of deep engagement. Evaluating whether one of these interventions has …
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A Study of Ship Airwakes Using Dual Plane Stereoscopic PIV
… particle image velocimetry approach. Two flow planes over the flight deck, one parallel and one perpendicular to the free-stream were simultaneously measured. Measurements were carried out over four such pairs of streamwise-spanwise plane combinations. Additionally, the airwake with and …
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ECOHYDROLOGICAL MODELING OF BEAVER DAMS
… that modify the water balance and modulate streamflow through different flow states, which might result in drought and flood mitigation. To date, four published hydrological models have been developed to predict these impacts; however, these models were unable to represent dam variability and …
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Power Regeneration in Actively Controlled Structures
… During regenerative operation, the power is flowing from the mechanical disturbance through the electromechanical actuator and its switching drive into the electrical storage device (batteries or capacitors). We demonstrate that regeneration occurs when controlling one or both of the flow …
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Paediatric cardiac anaesthesia in sickle cell disease : a case series
… hypoxia, hypothermia, acidosis and low flow states. Over time, multi-organ damage develops with significant morbidity and mortality. Paediatric patients with SCD and congenital heart defects may require anaesthesia for corrective cardiac surgery on cardiopulmonary bypass (CPB). During …
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Forgetting the self: nondual awareness as a key component of self-transcendent experiences
… feelings of connectedness, as seen in awe, flow and mystical experiences. Recent scholarship has suggested that these diverse approaches have hampered the development of ST theory (Yaden et al., 2017), and identified a need to conceptually link these independently studied domains. There is …
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Does working together increase flow with age?
… aging. One such motivational precursor is Flow, the optimal experience of an activity that is predicated on a perceived skill-challenge balance. The purpose of this research was to examine how the Flow experience is influenced by age differences in socioemotional motives. In the first …
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The dyslexic sublime: exploring the art-making process of dyslexic artists through the lens of the sublime
… process reflects a journey of exploration and flow states akin to the Sublime's ambiguity. Dyslexic artists' heightened empathy and visual-spatial perception further underscore the transformative potential of imagination in art. This study offers practical implications for education and …
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Flow Around Cambered and Yawed Pneumatic Tyres
An investigation has been conducted to study the flow around a deformed pneumatic tyre. An experimental rig is presented which enables an isolated tyre with Formula One inspired wheel geometry to be towed through a water towing tank at variable axle height, camber and yaw, with a highly accurate …
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Headwater stream network connectivity: biogeochemical consequences and carbon fate
… dry reaches and adjacent vernal pools as well as flowing water. I found that emissions were highly variable over space and time; in particular, the presence of a vernal pool enhanced total carbon emissions from the stream corridor. Next, to quantify carbon cycling and export from a non-perennial …
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Optimization based nonlinear feedback control for pedestrian evacuation from a network of corridors
… corridors is divided into two basic problems of flow routing and flow control. In this study the solutions of these two basic problems are developed. The proposed solution for the flow routing problem is based on the concept of shortest paths on a graph wherein the shortest paths are determined …