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 24 for “"Design Modification"”.
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Case Study on the Development of Engineering Design Modification Projects for U.S. Nuclear Power Plants: A Knowledge Retention Tool in Support of the Longevity and Resilience of the Nuclear Power Industry
… and resilience is by performing engineering design modifications efficiently and at a lower cost. Strategic plans, such as the Delivering the Nuclear Promise, can support nuclear utilities to achieve this. Another strategy to accomplish longevity and resilience is to ensure individuals …
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A simulation and redesign system for circuit hot-carrier reliability
In this thesis a computer-aided design system for CMOS VLSI circuit hot-carrier reliability estimation and redesign is presented. The system first simulates circuits to determine the critical transistors that are most susceptible to hot-carrier effect (HCE); it then estimates the impact of HCE on …
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The hyperbaric incident monitoring study (HIMS) : an international study of incidents occuring in hyperbaric medicine units
… procedure development, education and equipment design modification.
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Design study of the proposed 12slot-14pole field excitation flux switching machine (FEFSM) for hybrid electric vehicles
… for HEV drives is presented in this thesis. Design principles and initial performances of the proposed motor with 12 stator slots and 14 rotor pole are demonstrated. Initially, the coil arrangement tests are examined to validate the operating principle of the motor and to certify the zero …
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Variable structure control systems
… system theory and to apply the developed design concepts to control practical systems. It introduces the concept of a structure. The main aim in designing variable structure controllers, is to synthesize a variable structure system from two or more single structure systems, in such a way …
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Management of Employee Benefit Plans
… It suggests a scientific approach to the design, modification, and administration of benefit plan programs. The plan manager can no longer make decisions based solely on a comparison with other companies. Today, the effective manager must consider the corporate objectives and the total …
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Peanut oil press redesign for Developing countries
… extract the oil from the nuts. The current design for human-powered rapid extraction is the Bielenberg ram press, which uses a lever to generate the required pressure needed to extract the oil. However, this design is not optimal for two reasons: it requires significant upper body strength …
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A decomposition-based approach for the integration of product development and manufacturing system design
… to understand the interaction between product design decisions and manufacturing system design is critical to reflect manufacturing system issues early in the product development process. Early consideration of manufacturing system issues prevents product design iterations due to manufacturing …
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TAAF Stopping Rules for Maximizing the Utility of One-Shot Systems
… failure mode, and probability of an unsuccessful design modification. Conclusions are drawn regarding stopping rule performance in terms of stopping rule signal location, utility loss, achieved reliability, and fraction tested. Both rules perform well and are implementable from a practical …
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Effect of existing building on tunneling-induced ground movements
… For the case of a weightless building, design modification factors for bending and axial stiffness are consistent with results promulgated in Potts and Addenbrooke (1997). For the self-weight scenario, the current analyses indicated that neglecting this factor in the analyses can result …
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An experimental study on the performance of existing and custom quiet propeller designs for unmanned aircraft systems
… propulsion system performance. Several propeller design techniques were considered including: reducing the thickness of the propeller blade, increasing the sweep angle, and increasing the number of blades on the propeller. Further modification to the propeller design such as a boundary layer trip …
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Discovery and design of novel bioactive peptides from amphibian skin secretion
… in haemolytic activity. Therefore, the rational design modification of this AMP helped to improve its therapeutic activity.<br/><br/>In Chapter 4, an antimicrobial peptide was identified in Agalychnis callidryas with a known sequence, and because it contained a specific sequence, it was necessary …
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Screening the effects of indoles on the proliferation of yeast via changes in lipid carbon flux
… effects which has prompted the design modification for new drugs to treat proliferative diseases such as cancer. Compound 209 (2-(1H-indol-2-yl)) is a novel drug modified from 2-phenylindole (2-PI) and is known to inhibit the growth of glioblastoma cell lines and Saccharomyces …
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A macro-micro system architecture analysis framework applied to Smart Grid meter data management systems by Sooraj Prasannan.
… and then creating the Dependency Matrix using a Design Structure Matrix (DSM). Analysis is composed of two steps -- Macro-Level and Micro-Level Analysis. Macro-Level analysis identifies the system modules and their interdependencies based on the OPM and DSM clustering analysis and …
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The effects of design on the tone and response of clarinet mouthpieces
… changes brought about by small incremental modifications to the internal and external dimensions of clarinet mouthpieces. Methods were developed for use with the software data acquisition and analysis programmes to cope with the non-linear behavioural aspects of the mouthpiece. In addition, …
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Bond graph modeling of hydraulic circuits on a sweet sorghum harvester
… was a larger bundle than the bin could hold, a design modification was not necessary. The disk-cutter circuit was designed based on simulation results for several combinations of motor, pump, and sheave ratio. A 7.3 cm³/rad motor, 2.53 cm³/rad pump , and 2:1 sheave ratio produced the correct …
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Optimizing heat transfer in a solar parabolic trough collector absorber
… numerical methodologies to evaluate innovative designs for solar absorber tubes through Computational Fluid Dynamics (CFD) simulations. The research focuses on two key optimization approaches to improving the efficiency of solar absorber tubes: external fined solar absorber tubes and looped …
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Friction and Wear Performance of Lifeboat Launch Slipways
… techniques for lifeboat crews and to develop design modification to combat high friction and wear on slipway panels. The adoption of a modified slipway panel and water lubrication system is proposed, this arrangement reduces panel misalignment contributions to slipway friction and wear …
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Empirical essays on open innovation
… in which individuals create original product designs, and communities of users select designs and make products, instead of buying products from firms. This research expands social production theory to explicate the concept of community selection as a key mechanism that enables individuals to …
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Design and Operational Assessment of a Mobile Robot for Undercarriage Inspection of Railcars
This research assesses the design and track operation of a track crawler robot (TCR) for practical and easy inspection of stationary railcars' undercarriages in an effort to detect any pending failures or assess any security risk of out-of-sight objects. The research leverages against a robot …
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