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 18 of 18 for “"Rapid acceleration"”.
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Rapid acceleration of legged robots: a pneumatic approach
… thesis was to design a planar monopod robot for rapid acceleration manoeuvres, that could later be expanded to a planar quadruped robot. This was achieved through a hybrid electric and pneumatic actuation system. To this end, modelling schemes for the pneumatic cylinder were investigated and …
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Control of Rapid Acceleration in a Planar Legged Robot
… demonstrating its agility. Stable bounding and acceleration is achieved using a discrete body oscillation stabiliser, and the more dynamic jumping and somersault motions are generated using offline nonlinear trajectory optimisation. The optimal jumping motion was executed on the physical robot …
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Design of a bipedal robot for rapid acceleration and braking manoeuvres
Animals in nature are capable of performing rapid acceleration and braking manoeuvres with ease. However, they have been avoided by researchers due to the complexities of this motion. To investigate and test novel control schemes for such motions, a highly agile mechanical robot is required. The …
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Understanding the motions of the cheetah tail using robotics
… about these manoeuvres is that they involve rapid swinging of the animal's lengthy tail. Despite this, very little is understood about the cheetah tail and its motion, with the common view being that it is "heavy" and possibly used as a "counter balance" or as a "rudder". In this …
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Experimental and Finite Element Evaluation of Mild Traumatic Brain Injury
… impacts of mTBI induced by blast exposure and rapid acceleration, focusing on both experimental replication and finite element (FE) modeling. In experimental studies, using a custom-built shock tube, this study replicated blast-induced TBI (bTBI) in rats, examining the effects of single and …
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Modular engineering of neuromuscular gait simulators
… constraints to construct a framework for rapid model development. Key features of this methodology include: the use of Simulink as an environment for rapidly prototyped models, the use of and construction of custom Simulink libraries, and use of the Matlab Optimization Toolbox. This …
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Effects of Stack Pressure on High Performance Lithium-Ion Batteries
With the rapid acceleration of electrification in the automotive industry, the development of control systems and pack design must continue to keep pace. Pouch cells are a commonly used geometry in electric vehicles due to their high packing efficiency and therefore high volumetric energy density; …
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Why should wild nature be preserved? A dialogue between biblical theology and biodiversity conservation.
The past century has seen a rapid acceleration in global anthropogenic biodiversity loss, despite massively increased conservation effort and knowledge. Consequently, there are wide-ranging debates around whether economic and instrumental valuations of wild nature assist in its preservation, or …
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Fish fins and fast-starts: Multi-level analyses reveal functional variation within median fins of bluegill sunfish.
… behavior in which the fish undergoes a rapid acceleration and displacement to avoid predation. During this behavior, timing and magnitude of angular displacement and curvatures among fin-rays also differed predictably with longitudinal position. Most interestingly, a chordwise cupping of …
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Trajectory Optimisation Inspired Design for Legged Robotics
… aperiodic (non-steadystate) manoeuvres such as rapid acceleration and deceleration. Observing nature, animals are seen to effortlessly perform these rapid transient manoeuvres, however, robust walking is still considered a complex task in the robotics literature. For robots to successfully …
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Understanding Climate Change Adaptation and Gentrification through the Framework of Uneven Coastal Development in Keansburg, New Jersey
<p>This study examines the rapid acceleration of coastal development in the United States despite projections of climate change-induced sea level rise. Like no other developed country, the U.S. has transformed its fragile coastline into sites for leisure, consumption, and retirement. These spaces …
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Biological propulsion for water exit : 3D experimental study of archer fish jumping
… located directly below the water's surface. Rapid acceleration to a ballistic velocity sucient for reaching the prey height occurs with a mere body length to travel before the sh leaves the water completely and experiences a thousandfold drop in force-producing ability. In addition to speed, …
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Analysis of a permanent magnet hybrid linear stepping motor
… systems that require a high accuracy and rapid acceleration. The advantages such as high efficiency, high throughput, mechanical simplicity, high reliability, precise open-loop operation, low inertia of the system, etc. have made this kind of motor more and more attractive in such …
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Efficacy of a Professional Development Training Program in Macao to Assist Non-Native English Teachers Foster Learning Motivation in EFL Classrooms
… challenges faced by educators as a result of the rapid acceleration of globalization, the need for professional development programs to assist educators’ awareness of how to respond to these challenges is now more critical than ever. Since the establishment of the Macao Special Administrative …
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A Neural Network and Genome Language Model Based Approach to Understanding DNA Replication in Cancer
The rapid acceleration of technological innovation over the last two decades has catalysed an unprecedented surge in biological data generation, exemplified by the sequencing of the human genome with its ~6.4 billion base pairs, enough to fill nearly two million pages if printed out for a single …
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Essays in Monetary Policy and Growth
… AI: while advanced AI could lead to a rapid acceleration in economic growth, some researchers are concerned that building a superintelligence misaligned with human values could create an existential risk for humanity. We show that under standard asset pricing theory, either possibility …
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Future Lyme Disease Risk in the Southeastern United States Based on Projected Land Cover
… scenario. The A2 scenario experiences the most rapid acceleration of potential land cover suitability for Lyme disease transmission, with an average increase of 16,163.95 km² per decade, while the A1B scenario was projected to show an average increase of 3,458.47 km² per decade. Conversely, the …
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Application Of An Integrated Metabolic Power Paradigm In Elite Soccer
… Since the introduction of GPS, there has been a rapid uptake of GPS technology within soccer and numerous studies have examined the validity and accuracy of GPS systems to establish the accuracy of measuring physical data. Although faster GPS systems have been validated for team sports, some …