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 96 for “"design performance"”.
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Characterization of Cooled Turbine Efficiency for Off-Design Performance Models
<p>Gas turbine performance modeling is essential for predicting engine behavior across design and off-design conditions. Yet the treatment of cooling or service flows remains inconsistent, as these streams interact with the main flow in complex ways and their contribution to turbine work depends on …
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Design Readiness: An Exploratory Model of Object-Oriented Design Performance
… experience difficulty learning object-oriented design (OOD) principles. Previously explored predictors of OOD learning difficulties include student characteristics (cognitive activities, self-efficacy), teaching methodologies (teacher centered, course complexity), and student experiences (prior …
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Modelling, off-design performance and control analysis of OTEC power plants
Thesis: Ph. D., Massachusetts Institute of Technology, Department of Ocean Engineering, 1981
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Design, performance, and analysis of a multi-level air permeability test
The design, performance, and analysis of a soil vapor extraction system to identify zones most conductive to air transport and quantify kair in sequential soil layers is presented. A multi-level extraction well, with alternating solid and screened sections, was utilized to characterize …
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The effects of a model-eliciting activity on high school student design performance
… allows students to become more effective designers. High school technology and engineering students engage in engineering design challenges as part of traditional instructional practices. Model-eliciting activities (MEA) present students with opportunities to elicit mathematically thinking …
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A design performance driven learning framework for conceptual design knowledge : methodology development and applications
… automation of acquisition of bridge conceptual design knowledge. The thesis proposes a new learning methodology explicitly aimed at capturing quality design aspects to help engineer gain insight into good design. The research uses the National Bridge Inventory (NBI) data, which contains more …
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Non-uniform radial meanline method for off-design performance estimation of multistage axial compressors
… cannot meet demand [1], [21. This makes the off-design performance of such gas turbines more important as they spend more of their operational life off the design point. Currently off-design performance cannot be estimated with high fidelity until late in the gas turbine compressor design process …
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Investigation of a Design Performance Measurement Tool for improving collaborative design during a design process
With rapid growth of global competition, the design process is becoming more and more complex due largely to cross-functional team collaboration, dynamic design processes, and unpredictable design outcomes. Thus, it is becoming progressively more difficult to support and improve design activities …
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Anaerobic digestion of Fischer-Tropsch reaction water : submerged membrane anaerobic reactor design, performance evaluation & modeling
Includes abstract. Includes bibliographical references (p. 209-217).
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Electronic music instrument practice and the mechanisms of influence between technical design, performance practice and composition
… can communicate various details of instrument design and practice to the listener. I present two case studies concerning electronic music practice using repurposed devices - stepped filters - and by combining a detailed material analysis of the intsruments with interviews, video and other …
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Charge-sensitive methods for the off-design performance characterization of organic Rankine cycle (ORC) power systems
… including predictive control, optimal sizing or performance forecast - a proper understanding and characterization of the ORC behaviour under off-design conditions is of significant interest. In order to avoid any intrinsic state assumption, predictive models must account for both fundamental …
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Hydrologic modeling of low water crossing design performance at Camp Atterbury Joint Maneuver Training Center, Indiana
… enables soldier mobility on the landscape. If designed, installed, and maintained correctly, low water crossings have the potential to sustain troop throughput, retain stream bank stability, and preserve stream water quality. Additionally, studies have shown that hardened low water crossings …
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The Makaa Project : co-design, performance testing, and techno-economics to improve a Ugandan charcoal cookstove
… work is a collaboration with AEST to improve the performance, usability, and manufacturability of the Makaa stove. A one-day co-design workshop was held at the AEST site in Soroti to engage users, fabricators, and AEST employees in brainstorming and investigating opportunities to improve the …
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Design performance specification for school buildings in the vicinity of gas flaring in the Niger Delta area of Nigeria
… buildings, schoolchildren’s health and academic performance. In order to provide a better indoor environment for schoolchildren, meeting strict criteria in relation to indoor air quality (IAQ), thermal comfort, aesthetics and longevity is highly important. Stringent health criteria for school …
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Structured evaluation of attitudes to dwelling environments : people’s subjective assessments of preference satisfaction and meaning as indicators of architectural design performance
… which to implement and sustain the Evaluative or Performance Approach to Architectural Design, Research and Education. Permeating the second aspect, was a quest for evidence of fundamental factors and concerns in people's experience of human settings, which could perhaps be identified as more or …
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Modelling and Optimization of Scalable Hydrogen Fuel Cell Systems for Aviation
… and optimization tool for the sizing and performance estimation of a fuel cell system operating in an aviation environment. The tool includes the drag from the thermal management system, optimal design of the compressor system considering the altitude, and a hydrogen storage system sizing …
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Flight Testing Small UAVs for Aerodynamic Parameter Estimation
… system was developed to aid unmanned vehicle designers in verifying the vehicle's design performance. The system is reconfigurable and allows the designer to choose the correct combination of complexity, risk, and cost for a given flight test. The designer can also reconfigure the system to …
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Evaluation of the economic impact of operational tactics at an electronics manufacturer
… the simulation model are described. Experimental design, performance measures, statistical analysis are discussed. The dollar value of both work-in-process (WIP) and finished goods (FG) inventory is used to evaluate the effectiveness of alternative tactics. Managerial implications and …
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