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 22 for “"support condition"”.
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Measurement of Wood Pallet Performance Subjected to Uniform Loading in Racked, Fork Tine, and Floor Stacked Support Conditions
… pallets are exposed to a variety of loads and support conditions. This research investigates the effect of different pallet designs and support conditions on pallet stiffness. Uniform loads were applied to pallet designs containing thick or thin components and three, four, or five non-notched …
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Thom-Sebastiani and duality for matrix factorizations, and results on the higher structures of the Hochschild invariants
… of the sum potential on the product (with a support condition), and identify the dg category of colimit-preserving k[[beta]]-linear functors between Ind-completions with Ind-coherent complexes on the zero locus of the difference potential (with a support condition). These results imply the …
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Field investigation of subgrade non-uniformity effects on concrete pavement
… heterogeneous behavior as non-uniform subgrade support, theoretically analyze its effect on slab responses, or its effect on concrete pavement performance. This research has collected geotechnical data from two roadway sections in Michigan, MI I-94 and MI I-96, to characterize the effects of the …
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An analysis of a circular plate under tangential wind loading
… plates with a fixed boundary and with a simple support condition. Moments are developed from the deflections and results for both are presented in equation and tabular form. The results are left in a form that can be applied to any size thin circular plate under the action of a tangential wind …
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Evaluation of the Pallet Deflection that Occurs Under Forklift Handling Conditions
… exact performance of a pallet during a forklift support condition. Understanding pallet bending during forklift support condition and how it affects the stability of a unit load helps create an industry accepted deflection limit that will help to design safer and more cost-effective pallets. For …
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Quantification of prestressed concrete railway crosstie flexural response: Implications for mechanistic design
… by ensuring that designs conform to the field conditions in which they are used. To date, few methods have been proposed to accurately quantify the revenue service field bending moments of concrete crossties and their variability due to support conditions and other factors. This dissertation …
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Finite Element Modeling of Plastic Pails when Interacting with Wooden Pallets
… pails where the deckboard gap and overhang support conditions would be isolated by using a rigid deckboard scenario. The second phase also used physical tests to investigate plastic pails but instead used flexible deckboards and used an overhang support condition and a 3.5 in. gap support …
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Prestressed concrete railway crosstie support variability and its effect on flexural demand
… and design assume that the ballast bearing support is static and consistently located in a specific region under the crosstie. This assumption implies a linear behavior of the wheel-load bending moment relationship. However, field and laboratory data show that this relationship is actually …
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Categorification of the Kirwan map
… equivariant category of D-modules with certain support condition is equivalent to the category of D-modules on the quotient. It is then shown that we can associate particular equivariant D-modules to characters of the group and these equivariant D-modules are compatible in a natural sense with …
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The Role of Social Support and Stress Appraisals in the Relationship between Interpersonal Problems and Emotional Reactivity in Young Women with Histories of Childhood Maltreatment
… stress and health studies have shown that social support schemas are stress buffers that attenuate negatively-valenced emotional reactivity. As a result of interpersonal problems, however, some individuals might interpret current relationships more negatively and expect little support in the …
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Mitigating Risk for Anxiety Among Preschool-Age Children Living in Poverty: Evaluating the Impact of Adult-Provided Social Support on Autonomic Stress Reactivity
… This study evaluated whether providing social support to preschool-age children during mildly stressful situations helps reduce reactivity, and whether this effect partly depends on children's previously assessed baseline reactivity patterns. The Biological Sensitivity to Context (BSC) theory …
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Simultaneous effect of slenderness, spatially varying excitation and support flexibility on dynamics of rocking bridges
… of slenderness on bridge responses with a rigid support was considered first. The result revealed complex girder-pier-footing interactions. Building upon these results, the subsequent experiments were performed on the bridge-soil system under multi-axial excitations. In the following chapters, …
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The structural behavior of cold-formed steel members with perforated elements
… data and the analytical solution for the simple support condition. A load reduction equation was derived on the basis of the experimental study. The crippling strength of perforated webs were also investigated experimentally. In this investigation, twenty tests were conducted to cover a practical …
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Toward more effective strategies for alleviating stress: the effects of instructions and support in increasing priority time for women from dual-earner families
… that time management instruction and social support were two promising approaches for impacting upon stress levels in working wives. Fifty-six married women working in classified employee positions at a local university were assigned to one of four conditions in which they received either …
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The effects of keyboard height, wrist support and keying time on wrist posture and trapezius EMG during keyboarding
… height, the presence or absence of a wrist support, and keying time on different risk factors associated with musculoskeletal disorders experienced by VDT operators. Measurements of wrist posture, activity of the trapezius muscles, shoulder abduction and typing performance were recorded at …
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Examining the impact of gender-based microagressions and institutional betrayal on women holding multiple marginalized statuses
… to proactively prevent harm, or to be supportive following harm). Further, if institutions can respond with courage and support, the impact of a microaggression might also be changed. Despite the potentially dangerous impact of microaggressions, no research, to my knowledge, has …
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Dynamic response and optimal design of a lathe spindle under experimentally measured random cutting force excitations
… of the spindle-workpiece system. The workpiece support at the running center has been modelled as hinged or fixed support and the theoretical results are compared with the laboratory experiments to classify the nature of the support condition. Based on the results, the end condition at the …
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Development and Behaviour of a New Long-Span Composite Floor System
… double-Tee floor with hanger systems at its supports, but with unusually thin ribs. Internally, a new load-carrying system has been developed, using a centrally placed perforated light-gauge steel sheet. By providing a continuous medium for internal force transfer, the steel sheet offers some …
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Learning the Rules of the Game: The Nature of Game and Classroom Supports When Using a Concept-Integrated Digital Physics Game in the Middle School Science Classroom
… from outside the game (from peers and teachers) support the learning of applicable science. This study uses a mixed-methods, quasi-experimental design with an 8th grade class at an independent school in southern Connecticut to answer the following questions: 1. What is the nature of the supports …
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Effect of Pallet Deckboard Stiffness and Unit Load Factors on Corrugated Box Compression Strength
… interaction. The first chapter evaluates the support surface provided by a pallet consists of deckboards spaced perpendicular to the length of the pallet. The resulting gaps between deckboards reduce the support to the box. Gaps were limited to 55% of box sidewall length for practical reasons. …
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