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 380 for “"Accelerations"”.
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Efficient machine learning: models and accelerations
<p>One of the key enablers of the recent unprecedented success of machine learning is the adoption of very large models. Modern machine learning models typically consist of multiple cascaded layers such as deep neural networks, and at least millions to hundreds of millions of parameters (i.e., …
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Estimating peak accelerations for package cushioning design
Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1986.
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Measurement of accelerations experienced by rough stock riders
… and a waist mounted data recorder. The head accelerations experienced during the subjects’ scheduled rodeo events were then measured and recorded. The motions of the riders were also captured on video.\r\n\r\nResults: This study demonstrated the ability to record both the magnitude and …
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Ocular counterrolling induced in humans by horizontal accelerations
Thesis (Sc.D.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1979.
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Linear and Angular Head Accelerations in Daily Life
… of this study was to determine the linear accelerations, angular rates, and angular accelerations of the center of gravity of the head during daily activities and to determine the effect of angular terms on the linear accelerations. A total of 700 experiments were conducted with 18 subjects …
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Analysis of Linear Head Accelerations From Collegiate Football Impacts
… system that measures and records linear head accelerations to analyze head impacts from collegiate football. The Head Impact Telemetry (HIT) System is an in-helmet system with six spring mounted accelerometers and an antenna that transmits data via radio frequency to a sideline receiver and …
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Horizontal and vertical eye deviations in response to linear accelerations
Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1983.
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An Analysis of Catcher's Mask Performance to Attenuate Head Accelerations
… the ability of catcher's masks to attenuate head accelerations upon impact with a baseball, and to compare these head accelerations to established injury thresholds for concussions. Testing involved using a pneumatic cannon to shoot baseballs at an instrumented (3-2-2-2 accelerometer array) Hybrid …
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Biomechanical loads in running-based sports: estimating ground reaction forces from segmental accelerations
… However, since GRF is determined by the accelerations of the body’s different segments, currently popular body-worn accelerometers might allow for estimating GRF in the field. Therefore, the aim of this thesis was to investigate if GRF can be estimated from segmental accelerations, …
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Borehole Measurements of Dynamic Basal Drainage Adjustments During Sliding Accelerations: Bench Glacier, Alaska
<p>Artificial perturbations of borehole water levels, or slug tests, are a commonly employed means of characterizing the glacier hydrologic system. Results documenting the influence of slug testing on a field of boreholes and its change with time, however, are scarce. Slug tests were performed on …
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Borehole Measurements of Dynamic Basal Drainage Adjustments During Sliding Accelerations: Bench Glacier, Alaska
<p>Artificial perturbations of borehole water levels, or slug tests, are a commonly employed means of characterizing the glacier hydrologic system. Results documenting the influence of slug testing on a field of boreholes and its change with time, however, are scarce. Slug tests were performed on …
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Measurements of ocular counterrolling during linear accelerations using an electromagnetic scleral search coil system
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1991.
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Optimizing the Distributed Hydrology Soil Vegetation Model for Uncertainty Assessment with Serial, Multicore and Distributed Accelerations
<p>Hydrology is the study of water. Hydrology tracks various attributes of water such as its quality and movement. As a tool Hydrology allows researchers to investigate topics such as the impacts of wildfires, logging, and commercial development. With perfect and complete data collection …
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Aerodynamics of a Slender Body Undergoing Large Accelerations in the Direction of Its Axis of Symmetry
Made available in DSpace on 2014-12-09T18:12:17Z (GMT). No. of bitstreams: 1 6408444.pdf: 2016138 bytes, checksum: 193219f38cafb9dcd50e8736e6afecbb (MD5) Previous issue date: 1964
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Guardian Cap Effectiveness on Reducing Impact Accelerations and Enduring Player Health at the Collegiate Football Level
Using the Prism Neuro System and conducting impact testing, the study looked to evaluate the effectiveness of Guardian Caps. The Prism Neuro system gave us the ability to test proposition and visual skills of MIT Football players in season and out of season, and analyze their performance. We …
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Measurement of accelerations experienced by rough stock riders: A model for examining acceleration-induced head injuries in astronauts
Head injuries result in significant morbidity in rough stock rodeo events. Concussions are the most common injury sustained by rough stock riders, representing 50% of all major injuries. A pilot study conducted in 2007 examined head acceleration experienced by two rough stock riders. Ear-mounted …
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Quantifying changes in accelerations and heart rate indicative of fatigue during condensed competitions in elite youth ice hockey players
… Bioharness-3 (Zephyr, MD) sensors to compare accelerations (ACC) and heart rate (HR) over four games (G1–G4) in three days, in order to establish changes in cardiovascular stress and physical exertion associated with fatigue. Peak ACC and HR across multiple time frames were quantified and …
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Parameters Influencing Seismic Structural Collapse with Emphasis on Vertical Accelerations and the Possible Related Risks for New and Existing Structures in the Central and Eastern United States
… discovered in the parameter study that vertical accelerations did not significantly influence lateral displacements unless a given combination of model and earthquake parameters was altered such that the model was on the verge of collapsing. The second study involved Incremental Dynamic Analysis …
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Pareto Optimization in Robotics With Acceleration Constraints
… into two opposite assumptions: initial bounded accelerations and terminal bounded accelerations. Initial bounded accelerations are the cases when certain instantaneous stops are allowed. In contrast, terminal bounded accelerations allow infinite accelerations toward moving directions. We shows …
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Response of an unreinforced masonry building during the Loma Prieta earthquake
… earthquake in U.S. history. Recorded peak ground accelerations were as high as 0.29g and peak roof accelerations as high as 0.79g. Considerable amplifications of the peak accelerations between the ground and the roof were observed. The former firehouse withstood the Loma Prieta Earthquake with …
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