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PITTETD 檢索結果共 4141 筆,本頁資料從第 229 筆到第 240 筆

With the myriad of commercially available finite element analysis (FEA) software packages in industry, solutions to relatively complex problems have become more readily attainable for the engineer; making way for the realization of many of the innovative structures seen throughout todays infrastructure. While it may be assumed that most commercially available FEA softwa....

By Christopher Jason Stull-Civil and Environmental Engineering-University of Pittsburgh-masters-2006-09-27
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The threat to future legislation regarding fuel consumption and emission has forced the automotive industry to develop lighter, more fuel-efficient vehicles. The two main objectives of this industry are the reduction in car weight and improvement in safety. To achieve this, most of the panels that make up the car bodies prefer high strength materials coupled with better....

By RITESH K SEAL-Materials Science and Engineering-University of Pittsburgh-masters-2006-09-27
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Recently, molecular therapy approaches have been shown to favorably alter the course of intervertebral disc degeneration (IDD) in a rabbit model. Typical experimental outcome measures for the rabbit model of IDD include MRI, x-ray, histology, and gene expression. Biomechanical function is another desirable parameter through which to compare treatments, although this is....

By Christopher D. Agosti-Mechanical Engineering-University of Pittsburgh-masters-2006-09-27
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Piezoelectric MEMS resonators are being used with increased frequency for many applications, operating as frequency sources in sensors, actuators, clocks and filters. Compensation for the effects of manufacturing variation and a changeable environment, as well as a desire for frequency-hopping capabilities, have brought forth a need for post-process tuning of the resona....

By Amanda Allison Frederick-Mechanical Engineering-University of Pittsburgh-masters-2006-09-27
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A new development in aerospace technology involves the creation of aircraft that can undergo large changes in the shape of their wings and control surfaces. This technology, called morphing aircraft, does away with several performance compromises by allowing the aircraft to adapt to a wide variety of speed and altitude conditions. One of the challenges associated with t....

By Christopher J Homison-Mechanical Engineering-University of Pittsburgh-masters-2006-09-27
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This thesis presents sodium magnetic resonance as an in vivo means for non-invasively visualizing the changes in cell sodium ion homeostasis that occur in ischemic tissue during acute stroke. Single quantum sodium magnetic resonance imaging (MRI) was used to determine the time course of tissue sodium concentration (TSC) in a non-human primate model of reversible focal b....

By George C. LaVerde-Bioengineering-University of Pittsburgh-masters-2006-09-27
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This work presents a data model for differentiating and sharing assembly design (AsD) information during collaborative design. Joints between parts are an important aspect of assembly models that are often ambiguous when sharing of models takes place. Although various joints may have similar geometries and topologies, their joining methods and process parameters may var....

By David G. Manley-Industrial Engineering-University of Pittsburgh-masters-2006-09-27
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The development of new wireless technologies, the improvement of existing ones and the reduction on the wireless devices prices is increasing the number of users, the demand for bandwidth and the demand for higher data rates. The spread of the technology however bring some drawbacks. One is the increasing interference level that can degrades the wireless communications.....

By Brenno Beserra Coelho-Electrical Engineering-University of Pittsburgh-masters-2006-09-27
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A common approach to decreasing embedded application execution time is creating a homogeneous parallel processor architecture. The parallelism of any such architecture is limited to the number of instructions that can be scheduled in the same cycle. This number of instructions scheduled in a cycle, or instruction-level parallelism (ILP), is limited by the ability to ext....

By Joshua David Fazekas-Electrical Engineering-University of Pittsburgh-masters-2006-09-27
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In-fiber Bragg gratings are key components for optical sensing. As embedded sensors, in-fiber gratings find important applications in mechanical structural health monitoring, vibration detection, pressure monitoring and acoustic sensing. However, the current state-of-the-art grating sensors inscribed in standard fiber only provide for the detection of stress and vibrati....

By Charles Jewart-Electrical Engineering-University of Pittsburgh-masters-2006-09-27
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High speed inter-chip interconnects have reached and exceeded the multi-gigabit per second benchmark using differential signaling. Multi-bit differential signaling (MBDS) has been proposed as a solution to the 2n per n bit pin requirement of classical differential channels. MBDS does not currently have a modal characterization similar to the common and differential mode....

By Joel Ryan Martin-Electrical Engineering-University of Pittsburgh-masters-2006-09-27
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Current strategies designed to assess cells in the peripheral blood are limited to evaluation of phenotype or delayed measurement [>6 hours] of function, usually quantifying cytokine production, cytolytic activity, or response to antigens. Furthermore, these assays often do not assess the individual cell types comprising peripheral blood, instead providing a bulk-readou....

By David Thomas Montag-Bioengineering-University of Pittsburgh-masters-2006-09-27
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