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 12 of 12 for “"Prosthetic control"”.
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Mechanisms for enabling closed-loop upper limb sensorimotor prosthetic control
… mechanisms that enable simultaneous myoelectric control of hand prostheses with proprioceptive and touch/pressure feedback. Sensory feedback is enabled through the use of a passive skin stretch mechanism for proprioception (Chapter 2), an epidermal electronic device that can provide …
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Improving prosthetic control : an analysis of EMG-based haptic feedback’s role in reducing muscle co-contraction
Skortur er á skilvirkum svörunarkerfum fyrir notendur gervilima fyrir neðri útlimi, sem takmarkar tilfinningu, skynjun og heildar notagildi þessara tækja. Rannsóknir benda til þess að með því að bæta við svörunarkerfi í gervilimi geti göngulagið bæst, jafnvægisstjórnun og sjálfstraust notenda og …
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From thought to action
… before reaching movements and the generation of prosthetic control signals through stochastic modeling and estimation. In the first part, I show that temporal and history dependence contributes to the representation of targets in the ensemble spiking activity of neurons in primate dorsal premotor …
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Resting State Neurophysiology of Agonist-Antagonist Myoneural Interface in Persons with Transtibial Amputation
… amputations, as well as biologically intact control subjects (n=10). We hypothesized that the AMI surgery will induce functional network reorganization that significantly differs from the traditional amputation surgery and also more closely resembles the neural configuration of controls. We …
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A bone-anchored mechanoneural knee prosthesis to enhance control and embodiment
… utilize the peripheral nervous system for prosthetic control, it is necessary to first understand the compounded errors induced by amputated physiology before developing the appropriate interfacing technologies to extract any latent movement information. Through this work, I develop a …
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EMG as a control parameter in lower limb prosthetics : surface vs. implanted electrodes
Human locomotion is controlled by complex neurological patterns. These patterns activate and synchronise the musculoskeletal system to enable efficient and graceful ambulation. A limb amputation results in a partial loss of the complex structure needed for human locomotion. Various prosthetic …
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Predicting hand grasping orientation for prosthetic hand control using multimodal sensor data (EEG, EMG, and IMU) with machine learning approach
Enhancing the control of prosthetic hands is a crucial challenge that directly impacts the daily functionality of individuals with limb loss. Our research delves into advanced machine learning (ML) methodologies to accurately predict hand-grasping orientations, thereby improving the precision of …
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Integrated Wearable Devices for Prosthetic Applications
The evolution of upper limb prosthetics has led to the availability of a wide range of devices that differ in technical features, functional purposes, and degree of user interaction. The use of increasingly innovative materials and technological advances, combined with microcontroller-based boards, …
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Surface myoelectric signal analysis and enhancement for improved prosthesis control
… are presented in the field of myoelectric control. Specifically, algorithms for activity detection, noise identification and noise reduction are introduced, evaluated and discussed. The ultimate aim has been to develop algorithms to improve the performance of prosthetic control systems that …
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Development of sensory feedback systems: devices and strategies
… However, to restore the natural sense of touch, prosthetic devices and stimulating strategies must be capable of imitating the natural pattern activation of skin receptors. Human skin is composed of different receptors, and the natural sense of touch results from the synergistic activation of …
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Machine Learning Techniques for Gesture Recognition
… placed on the surface of the skin, and used for prosthetic control, sign language recognition, human machine interface, and a myriad of other applications. In order to move a step closer to these goal applications, this thesis compares three different machine learning tools, which include Hidden …
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Inverse optimal control for differentially flat systems with application to lower-limb prosthetic devices
Powered prosthetic devices have shown to be capable of restoring natural gait to amputees. However, the commercialization of these devices is faced by some challenges, in particular in prosthetic controller design. A common control framework for these devices is called impedance control. The …