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 301 for “"grip"”.
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Haptic grip interface for virtual tools
Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1996.
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The effect of elbow position and grip span on isometric grip strength and force distribution of fingers.
… use or poor design of hand tools. Isometric grip, performed with the angled handles of pliers was investigated in this study. For this thesis, three factors were studied. They were grip type (traditional and reversed grip), elbow position (0$\sp\circ$, 30$\sp\circ$, 60$\sp\circ$, …
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SURVIVING THEIR GRIP: EXAMINING MEDICAL FORENSIC CASES OF NON-FATAL STRANGULATION
Non-fatal strangulation (NFS) is a serious and increasingly recognized form of violence with significant clinical, legal, and public health implications. This dissertation utilizes a three-manuscript format to advance the understanding of NFS prevalence, risk factors, and assessment across …
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Grip strength of telecommunication workers thirty to forty years of age
The hand is used in nearly all physical work activities and is the recipient of more work injuries than any other part of the body except the trunk. In 1983 there were 360,000 disabling injuries to the hand and fingers (Accident Facts, 1984) . Accident statistics in some industries suggest that …
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A Novel Road Grip Estimation Method Using a Vehicle as a Probe
… method for measuring real-time road grip, which uses the driving vehicle itself as a probe (via onboard sensors). The relationship between wheel slip ratios and vehicle longitudinal acceleration, which is very similar to the relationship between wheel slip ratio and the tire …
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Wrestling’s Grip on the Past: A Comprehensive Study of Ancient Greek Wrestling
Wrestling was the first non-running event added to the ancient Olympics in the 18th Olympiad in 708 BC. Wrestling continued to appear in Greek and Roman art and literature all the way until the end of antiquity, leaving behind a large cultural legacy over a period of a thousand years. This long …
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Discrimination between sincere and deceptive isometric grip response using Segmental Curve Analysis
… assigned to perform a series of four isometric grip strength contractions and to develop a discriminant function equation that would predict group membership. Forty-nine college students were instructed to perform either a series of four maximal voluntary contractions (sincere) or a series of …
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Hand grip performance with the bare hand in the extravehicular activity globe
… This study was conducted to examine hand grip performance with a bare hand and in a spacesuit glove at two different pressures, with three hand positions and two elbow positions. Sixteen subjects, selected from the suited-subject pool at the Johnson Space Center, gripped a hand dynamometer …
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Development of a remotely-controlled electric vehicle with characterization of the ground grip
… driven wheels . The aim is to maximise the grip of each wheel with the ground, improving the performance as well as the stability of the whole vehicle. Hence the estimation of the friction characteristic between tyres and ground is addressed . Accurate estimat ion is required not only to …
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Getting a grip on Schizotypy: Elucidating dorsal stream deficits in Schizophrenia Spectrum Disorders
Schizophrenia Spectrum disorders (SDD) are associated with disproportionate dorsal visual stream dysfunction, relative to ventral visual stream function. However, there remains a gap in our understanding of the neuropsychology and functional implications of this deficit. Notably, the balance of …
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Getting a grip on Schizotypy: Elucidating dorsal stream deficits in Schizophrenia Spectrum Disorders
Schizophrenia Spectrum disorders (SDD) are associated with disproportionate dorsal visual stream dysfunction, relative to ventral visual stream function. However, there remains a gap in our understanding of the neuropsychology and functional implications of this deficit. Notably, the balance of …
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Grip strength is associated with postoperative adverse events in patients undergoing vascular surgery procedures
Grip strength is associated with postoperative adverse events in patients undergoing vascular surgery procedures
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Effects of Movement Context on Reach-Grasp-Lift Motion and Grip Force after Stroke
… tracking and pressure sensor quantification of grip force, we assessed upper extremity task performance in people with post-stroke hemiparesis. To evaluate effects of movement speed, we compared paretic-limb performance of a reach-grasp-lift task at a self-selected preferred speed to the same …
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Get a grip: Analysis of muscle activity and perceived comfort in using stylus grips
… this study focuses primarily on evaluating grip style’s impact on user comfort and muscle activity associated with handgrip while using a stylus-pen. Surface EMG measures were taken approximate to the adductor pollicis, flexor digitorum, and extensor indicis of eight participants while they …
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Dual-task Performance Involving Grip Force Control in Older Adults with Type 2 Diabetes
… brain structures responsible for attention and grip force control. Precision grip force relies on complex tuning of upper-extremity forces. The primary aim of this study was to assess dual-task costs (DTC) in older adults with T2D through tasks involving attention and precision grip force …
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Investigating pre-touch sensing to predict grip success in compliant grippers using machine learning techniques
… application of pre-touch sensing to a compliant gripper in order to navigate the last few centimeters while grasping fruit in an occluded, cluttered environment. Machine learning was used in conjunction with pre-touch sensors to provide qualitative feedback about the success of the gripper in …
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Second Generation Data-Logging System for Long-Duration Field Measurement of Vibration Exposure and Grip Force
<p>Millions of United States workers are exposed to vibration at their job, whether it is from a power tool that causes hand and arm vibration or from heavy machinery. These vibrations are known to result in physical disorders such as Hand-Arm Vibration Syndrome, which can be debilitating to the …
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Development and Application of a Portable System to Reliably Measure Grip Forces Using Thin-Film Force Sensors
<p>Accurate tracking of hand grip force is an important consideration needed for a robust understanding in the study of human biomechanics. One aspect where it proves useful is in hand-arm vibration, such as from gripping a power tool. Depending on how firmly the user is gripping the tool, they may …
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Grip, slip, petals, and pollinators: Linking the biomechanics, behaviour and ecology of interactions between bees and plants
The ability to grip on petal surfaces is of crucial importance for the interactions between bees and flowers. In this thesis, I explore the biomechanics of attachment and morphological diversity of bee attachment devices, linking this to the behavioural ecology of bee interactions with flowers. …
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