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 41 for “"sled"”.
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A parametric analysis of the BISRU sled tester's dynamic response
Includes abstract. Includes bibliographical references (leaves 157-159).
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An extended analysis of the BISRU Sled Tester's dynamic response
Includes abstract. Includes bibliographical references.
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The acute effects of multiple resisted sled-pull loads on subsequent sprint-running performances
1 PDF file (vii, 71 pages)
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Analysis and algorithms for parametrization, optimization and customization of sled hockey equipment and other dynamical systems
… We further apply the methodologies on sled hockey, an adaptation of stand-up hockey, allows people with physical disabilities to participate in the game of ice hockey. First, we develop and implement numerical algorithms to study the nonlinear dynamics described by 4th-order nonlinear …
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Biomechanical Responses of Small Female Human Surrogates during Frontal Sled Tests using a Realistic Vehicle Environment
… ATDs and small female PMHS in matched frontal sled tests simulating a realistic driver-seat environment. A 7th-generation Toyota Camry driver seat test buck was used with Camry parts (i.e., 3-point belt, modified seat, steering wheel, airbag, and column). The belt was equipped with a 4-kN load …
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Validation of the Global Human Body Models Consortium Mid-Sized Male Model in Lateral Impacts and Sled Tests
Motor vehicle crashes kill about 1.2 million people worldwide each year making it one of the most common causes of death. Side impact injuries are particularly dangerous and present different injury patterns than those seen in frontal crashes. This implies that any kind of predictive model must not …
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Thermal-Fluid Dynamic Model of Luge Steels
… sport in which athletes ride feet-first on sleds down an ice-covered track. Competitors spring from the starting position and accelerate their sled by paddling with spiked gloves against the ice surface. Once the Luger leaves the starting section, their downhill motion is solely propelled by …
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The Sled, the Litter, and the Plot: Finding Connections Between Mundane Material Culture From World War II's USS North Carolina
… objects -- in this case the Kingfisher sea sled, a vertical plotting board, and a stretcher -- showcase elements of construction, technological improvement, and inferred value. Additionally, events and people connect these seemingly unrelated artifacts. Ultimately, mundane artifacts can be …
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Development of a Tow Capacity Test Device for Small Unmanned Vehicles
… method using a variable-resistance tow sled for quantifying the dynamic towing capacity of SUGVs. The tow sled contains a frontal skid plate and a rear axle and wheel arrangement. A weighted carriage is transferred from the rear of the sled to the front of the sled by a cable geared to …
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Practice to pitch: The relationship between force-velocity profiles and match-day performance of semi-professional rugby union players
… METHODS Athletes performed four exercises (sled push, sled pull, back squat and jammer push-press) at incremental loads to establish FVPs. Rugby performance indicators (post-contact metres, tries, turnovers conceded, tackles, try assists, metres run, tackle-breaks and defenders beaten) were …
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Occupant Responses of Relaxed and Braced 5th Percentile Female and 50th Percentile Male Volunteers during Low-Speed Frontal and Frontal-Oblique Sled Tests
… during low-speed frontal and frontal-oblique sled tests designed to simulate pre-crash braking and low-severity crash events. A study comprised of 160 low-speed sled tests was performed with 20 volunteers. The volunteers' kinematics, kinetics, and muscle responses were compared to determine …
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Biomechanical Response of Human Volunteers and Surrogates in a Variety of Loading Regimes
… Hybrid III ATD, and PMHSs in low-speed frontal sled tests; quantify the neck response of human volunteers and PMHSs in low-speed frontal sled tests; quantify the kinetic and kinematic responses of PMHSs and the Hybrid III ATD in high-speed frontal sled tests; characterize thoracic loading as a …
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From gee to haw (and everything in between): Deconstructing the transspecies pidgin of mushing in northern Saskatchewan
… around nonhuman knowledge in the context of sled dog racing. This pidgin is a product of biconstructivism which includes motherese (verbal) words rooted in the English language, vocalisation, short phrases for reinforcement, the use of material devices, and training methodologies to shape a …
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Finite element simulation of the human body in vehicle side impact
… body regions with varying initial velocities. Sled tests are another test procedure, in which cadavers are impacted against a rigid or padded wall by means of a horizontally accelerated sled.
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Biomechanical Investigation of Head Kinematics and Skull Stiffness
… data collection methodologies used in frontal sled tests. Several data collection methodologies exist for collecting kinematic data, such as Vicon motion analysis, video analysis, and sensors. Head trajectories from motion data and accelerometer data were plotted up to maximum forward excursion …
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The effects of acute dehydration of 5% body mass on performance and physiology of mixed martial arts athletes
… medicine ball throw, grip strength and repeated sled push) and physiology (body weight, haematocrit, urine specific gravity, serum osmolality and urine osmolality) of MMA athletes. A total of 14 MMA athletes between the ages of 18 and 40 y with at least 2 y of competitive experience were …
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Some studies of frictional properties of fabrics
… such as pressure, velocity of sliding, nature of sled surface, number of traverses. Secondly, a series of plain weave fabrics is used whose density of consolidation is systematically increased by increasing the picks per unit distance. Thirdly, the fricative resistance of a group of woven pile …
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A Quantification Of The Metabolic Demand Wrought By Explosive Ordinance Disposal Load Carriage
… jump, isometric rack pull, stair sprint, 18.29m sled pull, 9.14m yard dash, a Bruce or modified Bruce protocol, and digit countback. The present study specifically considered measures of strength (isometric rack pull), power (stair sprint, sled pull), and cardiovascular fitness (VO2 max) to give …
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High power superluminescent light-emitting diodes
Superluminescent light-emitting diodes (SLEDs) are optoelectronic devices which combine different aspects of laser diode and LED performance. The device utilises a ridge waveguide structure to amplify spontaneously emitted light. Steps are taken to suppress feedback by minimising facet …
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Sprint acceleration performance in team sports : biomechanical characteristics and training methods
… resisted sprint training such as weighted sled towing is a popular training modality that athletes often use in an effort to improve sprint acceleration ability, but its use is largely based on choaches' observation and lacks experimental evidence. In particular, the optimal training load …
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