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 423 for “"legs"”.
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Design of robotic quadruped legs
… terrain. Conversely, systems that rely on legs have shown promising rough terrain performance but only a modest ability to achieve high speeds over flat terrain. The goal of this thesis is to develop four robotic legs that are capable of robust dynamic running over flat terrain. …
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Designing articulated legs for running machines
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1990.
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Neural processing of chemosensory information from the locust legs
… the reflex of the pro and mesothoracic legs in Locusta migratoria L under control of their chemoreceptors in responses to be stimulating media. The study was conducted utilising different stimulating media namely : salt (10mM and 100mM NaCl), sugar (50mM sucrose and 50mM glucose), acid …
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Using Artificial Intelligence To Improve The Control Of Prosthetic Legs
For as long as people have been able to survive limb threatening injuries prostheses have been created. Modern lower limb prostheses are primarily controlled by adjusting the amount of damping in the knee to bend in a suitable manner for walking and running. Often the choice of walking state or …
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Extra robotic legs for augmenting human payload and positioning capabilities
The Extra Robotic Legs (XRL) system is a robotic augmentation worn by a human operator that consists of two articulated robot legs that help bear a heavy backpack payload and a portion of the operator's own weight. The design was driven by a need to increase the effectiveness of Department of …
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A haptic control system for functional electrical stimulation of paraplegic legs
… paraplegic men and women can use their natural legs for walking. In FES the impaired muscles are stimulated with electricity in a proper cycle to cause the legs to move in a walking pattern. It can be greatly beneficial for paraplegics however, current systems are not widely used because they …
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Einfluss der Anästhesie auf das postoperative Auftreten des Restless Legs Syndroms
Das Restless-Legs-Syndrom ist eine relativ häufige neurologische Erkrankung, der wahrscheinlich eine Störung des dopaminergen Neurotransmittersystems zugrunde liegt. Von der idiopathischen, primären Form unterscheidet man eine sekundäre Form, die durch identifizierbare auslösende Faktoren …
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Investigating the link between depression and restless legs syndrome: a controlled comparison of mood and motor restlessness in restless legs syndrome, with primary insomnia and good sleeper controls
Background: Restless legs Syndrome is a sensorimotor disorder characterised by unpleasant sensations in the legs when at rest and only relieved by movement. RLS is associated with deterioration in quality of life and depression is a common comorbid problem. Methods: The present study aimed to …
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Design of Lower Legs of Mithra, a High-Performance Backdrivable Humanoid Robot
… and robust motion. The structure of Mithra's legs mimics the human structure in leg segment length and weight proportions. Detailed design and analysis were conducted in order to allow Mithra to be a robust and maintainable system. Mithra will serve as a human movement controls research …
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Monitoring and control of the accumulation of interstitial fluid in the legs
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2002.
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Biomechanical changes to human locomotion due to asymmetric loading of the legs
… differences in the stride time of the legs occurred under loading, while contralateral stride times also adjusted to remain equal to those of the loaded legs. Symmetry index analysis led to the conclusion that, while the asymmetric loading of the lower limbs had some effects on temporal …
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Differences of selected performance parameters of dominant and nondominant legs of soccer players
… muscle groups in the dominant and nondominant legs of University of the Pacific male soccer players at differing contraction speeds as measured by the Cybex II Isokinetic Dynometer.<p/>
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A thermal-fluid analysis of piping dead-legs in high purity water systems
… at teesection branches can cause piping dead-legs. Dead-legs consist of reglons of stagnant fluid where harmful organisms can proliferate unaffected by the scounng effects of distribution loop flow. This thesis presents a thermo-fluld analysis focusmg upon the fluid dynamics and heat transfer …
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Eight Legs And A Brain: Locomotor Mimicry Of Ants And Neuroethology Of Jumping Spiders
… that these ant mimics do not move on six legs. In their overall motion, however, M. formicaria do imitate ants. Chapter 3 uses behavioral trials and extracellular recordings of electrical activity from neurons in the jumping spider brain to explore responses to airborne acoustic stimuli. …
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Biomimetic Bi-Pedal Humanoid: Design, Actuation, and Control Implementation with Focus on Robotic Legs
… In this thesis, a pair of low-cost, bio-mimetic legs for a humanoid robot was developed with 12 degrees of freedom: three at the hip, one at the knee, and two at the ankle. Prior to developing the robot, a survey of the human-sized robotic legs released from 2006-2012 was conducted. The analysis …
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The Visual Construction of an Educated Woman in Illustrations of Jean Webster’s Daddy-Long Legs
… Webster’s 1912 epistolary novel <em>Daddy-Long-Legs</em> features pen drawings by the author. This thesis examines those pen drawings as a tool for character development and political awareness, and how artists tasked with creating other illustrations for the story misrepresent the progressive …
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Excessive Stakeholder Evaluation Anxiety (XSEA): Helping Your Stakeholder Find Their Sea Legs with Program Evaluation
<p>Fear of negative evaluation from others is an innate human characteristic. When a program is being evaluated and program staff are involved in evaluation activities, these stakeholders are allowing their services and by extension, themselves, to be examined by evaluators. Consequently, program …
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