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 36 for “"cushioning"”.
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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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A method of characterisation of the nonlinear vibration transmissibility of cushioning materials
… of stresses. The response behaviour of cushioning or protective packaging materials under vibration excitation is central to the effective design of product packaging. The response characteristics of the cushioning material guide the design parameters of the product-transport cushion …
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A Study of Air Flow Effects on the Cushioning Characteristics of Multi Layered Pre-Compressed Fibreboard
Multi-layered corrugated fibreboard, has in recent years been gaining attention as a replacement for polymeric materials for protective packaging for environmental reasons. The properties of pre-compressed multi-layered corrugated fibreboard make it a sustainable replacement for poly-foam and …
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Advanced aircraft seat design : the webbing concept
… of webbing as the substitute for current foam cushioning in the seat back. The result is a webbing-foam hybrid cushioning design that utilizes the benefits of both cushioning types to maximum effect. Experimental tests suggest that this design would also provide better overall comfort for the …
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Understanding risk of injury in novice runners: exploring the link between runner characteristics, biomechanics and injury outcome
… in novice runners wearing footwear with reduced cushioning. The aim was to understand how intrinsic characteristics of novice runners, namely body composition, strength and flexibility, influence running biomechanics and ultimately injury outcome, and whether footwear structure effects this …
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Variable stiffness orthosis for gait normalization in patients with toe walking
… a custom orthosis with variable stiffness cushioning was designed. A healthy subject walked with simulated tip toe walking observed in DMD and ITW patients on a treadmill for three thirty-second trials, each with a cushioning material of rubber, gel, or foam added to the orthosis. The force …
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Evaluation of the critical parameters and polymeric coat performance in compressed multiparticulate systems
… capsule filling. The current practice is to add cushioning agents to minimize the stress on the coated pellets. Cushioning agents however add bulkiness and reduce the overall drug loading capacity. In this study, we investigated the performance of compressed coated pellets with no cushioning …
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HYDRAULIC PERFORMANCE OF GEOSYNTHETIC LINERS IN TAILINGS STORAGE FACILITIES
… fines partially involved, increasing cushioning effect surrounding the coarse, and constant cushioning effect. For leakage through a circular GMB hole, a 1.9- and 5.0-fold increase in hole diameter cause a 1.8- and 6-fold increase in leakage, respectively, whereas a 2-fold increase in …
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Product design and development of the Easy-Fit Triathlon Racing Shoe
… such as being lightweight and having adequate cushioning, are extremely important to the elite competitive triathlete. Therefore, these features were also integrated into the design of the Easy-Fit Triathlon Shoe. The innovative tongue and heel system expand the shoe opening then tighten the …
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Integrity of packages and contents subject to handling and distribution hazards.
… of packaging. This enables the size of the cushioning structure to be minimized and the cushioning and package material to be selected appropriately. The final stage of this project was to develop the techniques for the prediction of the susceptibility to damage to packaging systems …
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Gas loss and durability of EVA foams used in running shoes
… with thedistance run and the reduction in the cushioning properties are mainly due to theyielding and unyielding of the cellular structure and not to a change in the air content. Midsole deterioration in running shoes was measured in controlled running tests.These confirmed the deterioration of …
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Madison, Indiana's saddletree industry and its workers, 1860-1930
… saddles, giving saddlers a base on which to add cushioning, stretch leather, and create beautiful or functional saddles. Saddletree factories were an integral part of Madison, Indiana’s late nineteenth-century economy. As one of the Ohio River town’s leading industries, saddletree shops employed …
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Material Properties of the Grade 300 and Grade 270 Prestressing Strands and their Impact on the Design of Bridges
… requirements when using aluminum foil as a cushioning material, none of these samples broke clearly within the gage length of the strand. Furthermore, all of the super area strand samples failed prematurely at the grips due to the notching effect of the V-grip teeth. Thus, an alternative …
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Comparison of broiler breeder production and fertility in a colony cage system with two different floors versus a slat-floor system
… had a two piece design which produced a slight cushioning on the top of the slats. Egg production and mortality were not different (P > 0.05) among the three treatments. Eggshell thickness, albumin height, and shell thickness were lower (P > 0.05) in the litter and slat floor but not between the …
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Concept design for a folding bicycle helmet
… by other means. The helmet is lined with a wave cushioning material and is combined with Expanded Polystyrene (EPS) foam. Preliminary studies by the manufacturer indicate that this new material uses EPS foam pads in designs that provide better protection from traumatic brain injury. This new …
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An investigation into the effect of customised insoles on plantar pressures in people with diabetes
… which incorporate both a metatarsal bar and cushioning materials in front of the bar are effective in reducing peak pressures (PP). However, the optimum design was that which incorporated a combination of poron (cushioning material) with a metatarsal bar, located distal or on the point of PP. …
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Kinematic and Kinetic Analyses of E-TPU Material in Bowling Footwear
… Participants stood five meters away from cushioning mate and performed a four-step approach to roll the bowling ball on top of a mat. A Casio high speed camera was set up to capture the right sagittal view of bowling ball delivery at 120 Hz in conjunction with a 650 watts spotlight. Every …
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THE ACUTE AND CHRONIC EFFECTS OF HIGHLY CUSHIONED SHOES ON LOADING CHARACTERISTICS IN RECREATIONAL RUNNERS
… market, and manufacturers suggested extra cushioning potentially reduced injury rates through superior shock absorption, implying less impact upon foot strike versus other shoes. Hence, the purpose of this study was to examine the effects of a 4-week HCS intervention on running-related …
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