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 21 for “"Animal Locomotion"”.
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Recovering elastic energy in a single-legged hopping robot
Robots that mimic animal locomotion may be improved by the addition of compliant parts. A proposed metric for the importance of compliance in an animal gait is Ek/Ein, the ratio of the systems peak kinetic energy to the energy input into it over one gait cycle. In this project, I create an …
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The role of electronsensory signals on the locomotor performance of the weakly electric fish apteronotus albifrons
Animal locomotion performance responds to different ecological factors that shape relevant aspects of behavior. Conspecific signals is one of these factors and operates in a wide range of contexts. In schooling fish, coordinated movement is based on visual or mechanical cues and signals. In …
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Topobo : a 3-D constructive assembly system with kinetic memory
… quickly assemble dynamic biomorphic forms like animals and skeletons, animate those forms by pushing, pulling, and twisting them, and observe the system repeatedly play back those motions. For example, a dog can be constructed and then taught to gesture and walk by twisting its body and legs. …
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Locomotor kinematics of turtles moving in shallow water environments
Locomotion, moving around in our complex world is as crucial to many animals as finding food, shelter or a mate. The intricate interplay between the brain, nerves, muscles, tendons and bones allows for a variety of gaits. Animal movement has been studied in many environments like water, land or …
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Simulation and theoretical study of swimming and resistive forces within granular media
Understanding animal locomotion requires modeling the interaction of the organism with its environment. Locomotion within granular media like sand, soil, and debris that display both solid and fluid-like behavior in response to stress is less studied than locomotion within fluids or on solid …
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Hippocampal Output to the Septum Regulates Locomotion and Exploration
… in the dorsal hippocampus (DH) when the animal explores the environment. During exploration, the DH combined extrinsic inputs from multiple sensory and motor-related structures to generate locomotion-dependent activity; however, the hippocampal mechanisms of locomotion and exploratory …
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Markerless 3D Motion Capture of Cheetahs in the Wild
… disorders as well as help biologists to study animals and help engineers to design bio-inspired robots. Researchers studying animal locomotion often study humans and dogs due to the difficulty associated with studying other animals; however, the cheetah (Acinonyx jubatus) is a particularly …
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Novel methods for microfluidic mixing and control
… with microscale mixing. Exercising control over animal locomotion is well known in the macro world but in the micro-scale world, control requires more sophistication. We present a method to artificially magnetize microorganisms and use external permanent magnets to control their motion in a …
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Reduced-order modeling of granular intrusions driven by continuum approaches
… such as ballistic impacts, vehicular and animal locomotion in natural terrains, and stirring of materials in industrial processes are common. Granular media often exhibits coupled solid-like and fluid-like multiphase characteristics in such systems that are commonly not shown by simple …
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Investigation of transition to turbulence at low Reynolds numbers using Implicit Large Eddy Simulations with a Discontinuous Galerkin method
… in the study of unsteady flows for MAVs and animal locomotion is thus that the type of transition (TS dominated, cross-flow dominated, or mixed) is a priori unknown as soon as the flow is slightly misaligned with the wing's chord.
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Spatiotemporal Dynamics of Tissue Oxygenation in Awake, Behaving Mice
… component (20-30sec) was strongly influenced by animal locomotion. In situations where the animal ran, oxy- and deoxyhemoglobin changes were more pronounced where whisker stimulation coincided with locomotion. In comparing the region of highest response to whisker stimulation (‘centre’) to …
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“An American Sun Shines Brighter”: Art, Science, and the American Reinvention of Photography
… Chapter Five examines Eadweard Muybridge’s Animal Locomotion (1887) as a key moment of departure from an understanding of photographic practice as a skilled craft, to a new perception of the medium as an amateur pastime and scientific tool in the form of the instantaneous snapshot. Finally, …
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Kinematics and Hydrodynamics of Cephalopod Turning Performance in Routine Swimming and Predatory Attacks
… has received considerable attention in aquatic animal locomotion studies. Unsteady swimming movements, however, represent a large portion of many aquatic animals’ locomotive repertoire and have not been examined extensively. This study incorporates kinematic analyses of routine turning …
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Bridging the gap: Biomechanics of vertical gap-crossing in snakes and cicadas
… arboreal environments is essential for the animals which make those environments their home. An animal's ability to move among branches can depend on both environmental features, such as branch diameter or discontinuities in branch support, as well as the animals' features such as claws, …
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On the discretisation of actuation in locomotion: Impulse- and shape-based modelling for hopping robots
… the conspicuous discrepancy between robot and animal locomotion appears paradoxical. While animals can move around autonomously in complex environments, today’s robots struggle to independently operate in such surroundings. There are many reasons for robots’ inferior performance, but arguably …
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Toward Efficient Bio-Inspired Propulsion: The Effect of Propulsor Shape and Kinematics on System Performance and Efficiency during Bio-inspired Locomotion
Both bird and fish locomotion are thought to be more efficient than the equivalent man-made vehicles driven by propellers/impellers and jet engines. Through studies that decompose the different kinematic and shape effects of these biological systems, we can understand what leads to their high …
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The Dynamics of Non-Equilibrium Gliding in Flying Snakes
… new non-equilibrium framework to analyze gliding animals and how the pitch angle affects their translational motion. Chapter 3 combines flying snake glide experiments and detailed dynamic modeling to address what is aerial undulation and how each kinematic component affects rotational stability …
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Beyond jump height: Understanding the kinematics and kinetics of the countermovement jump from vertical ground reaction force data through the use of higher-order time derivatives
… etc. The information will also be of interest to animal locomotion biomechanists aiming to infer kinematic and muscle activation events directly from easily-obtained force platform recordings without the need for motion analysis or electromyographic analyses. Deriving the yank-time signal from the …
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Robust Predictive Control for Legged Locomotion
… articulated-legged machines that can mimic animal locomotion has fueled the imagination of many researchers. These legged robots are designed to assist humans in their day-to-day tasks and challenging scenarios such as monitoring remote, inhospitable environments, disaster response, and …
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