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 53 for “"efficiency analysis"”.
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Shariah: An efficiency analysis
The oil shock of 1973 brought newfound wealth to a group of ultraconservative Muslims. This wealth coincided with the growing demand for shariah compliant products. The prohibition against interest is not new but has been around for millennia. This dissertation attempted to ascertain if Shariah …
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Site-level Resource Efficiency Analysis
… To this end, two viable strategies exist: energy efficiency and material efficiency. Despite their inherent interdependence, industry continues to treat these two strategies as isolated pursuits, providing in the process only a partial insight into the potential of resource efficiency. To resolve …
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Power efficiency analysis for an Active structure
… for analyzing the structural-acoustic power efficiency of active structures are developed. For this work we define the power efficiency as the ratio of the sound power radiated by a structure to the maximum possible radiated sound power. An active structure is defined as one that has …
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Energy Efficiency Analysis And Optimization For Mobile Platforms
… we focused in this dissertation on energy efficiency analysis and optimization for mobile platforms. We specifically developed SoftPowerMon, a tool that can power profile Android platforms in order to expose the power consumption behavior of the CPU. We also performed an extensive set of …
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Energy efficiency analysis of converter-fed induction motors
… manufacturers and end-users in performing energy-efficiency optimizations for motor-drive applications. Although there is an increase in legislative activities, particularly in Europe, toward classification and improvement of energy efficiency of electric motor-drive systems, the available …
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Search engine advertising in web retailing : an efficiency analysis
This study examines the efficiency of search engine advertising strategies employed by firms. The research setting is the online retailing industry, which is characterized by extensive use of Web technologies and high competition for market share and profitability. For Internet retailers, search …
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Performance Modeling and Efficiency Analysis for a Piezohydraulic Pump with Active Valves
… to system performance. At last, a power and efficiency analysis based on experimental results is presented.
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Innovation, Management and Public Policies: Three Essays on Firm Productivity and Efficiency Analysis
Productivity, i.e., the efficiency with which nations, industries and firms use resources to achieve economically valuable results, is perhaps the most important measure available to policy-makers to gauge the health of an economic system. Early empirical explorations based on country- or …
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The Non-Linear PARallel OPtimization Tool (NLPAROPT): A Software Overview and Efficiency Analysis
… are a software overview followed by an in-depth analysis of NLPAROPT’s efficiency. A trade-off analysis was conducted to determine the optimal number of processors to run a given problem with a certain computational complexity measured in Floating Point OPerations (FLOPs). Additionally, a series …
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The Impact of Environmental Variables in Efficiency Analysis: A fuzzy clustering-DEA Approach
Data Envelopment Analysis (Charnes et al, 1978) is a technique used to evaluate the relative efficiency of any process or an organization. The efficiency evaluation is relative, which means it is compared with other processes or organizations. In real life situations different processes or units …
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Comparative Energy Efficiency Analysis for Hydrogen and Jet Fuel in Next-Generation Long-Haul Aircraft
The aviation sector aims to reach net-zero CO₂ emissions by 2050. Consequently, the industry must rely on a fuel with no life-cycle CO₂ emissions. Liquid hydrogen offers the potential to provide zero in-flight CO₂ emissions and low life-cycle CO₂ if produced from non-fossil electricity. While …
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Solar thermochemical conversion of CO2 into fuels using Ni-Ferrite driven redox reactions: Thermodynamic efficiency analysis
… To evaluate how different factors influence the efficiency of this process, a detailed thermodynamic model was created. This model looks at how variations in inert gas flow rates and gas-to-gas heat recuperation affect key parameters and the overall solar-to-fuel energy conversion efficiency. The …
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Efficiency Analysis of Operational Performance of Container Terminals of Sea Port, the Case of Dar es salaam Port
… terminals congestion. With this in mind, the efficiency of container ports and terminals has become more ever important worldwide. It has been ascertained that port of Dar es salaam faces several challenges on efficiency and operational performance at its container terminals. Some of the …
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Integration of Strategy and Economics: Triangulating on Agribusiness Competitiveness Through Strategy and Economic Theories
… this study concludes that the use of technical efficiency analysis using the DEA method as the basis to develop theoretically grounded strategic groups is a possibility. This efficiency group development can be classified as a ""deductive"" or a posteori approach, since there is no conceptual …
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Analysis of Light Extraction Efficiency Enhancement for Deep Ultraviolet and Visible Light-Emitting Diodes with III-Nitride Micro-Domes
… The limitation occurred in light extraction efficiency of III-nitride LEDs is attributed to the large refractive index difference between III-nitride semiconductor and free space, which leads to significant total internal reflection at the semiconductor and air interface. This thesis presents …
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Essays in efficiency and productivity analysis under technology heterogeneity regimes
The ample interest of every strand in Efficiency and Productivity Analysis during the last decades has been placed on unravelling the mechanisms and identifying the sources of heterogeneity among the units under consideration so as to guarantee to the most possible extent that the benchmarking …
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Analysis of energy requirements in stirred media mills
… media mill. The role of grinding media on the efficiency is considered, and with the use of a novel, rod shaped grinding media, significant energy savings in ultrafine wet grinding are seen. This is proven to be an effect attributable to the shape of the grinding media, rather than the density …
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Design and prototype of a personal ascending device based on the principle of a capstan winch
… 100 kg at 0.4 meters per second with an overall efficiency of 8.5%. This result was 57% lower than the predicted speed of 0.7 meters per second with an expected 14.7% efficiency. Analysis revealed a design flaw which can account for most of the discrepancy in the predicted and observed …
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Full Bridge LLC Converter Secondary Architecture Study for Photovoltaic Application
… proceeding to performance comparison. Circuit efficiency analysis is conducted on the main power stage and the key components with frequency consideration. The hardware circuit achieved the designed function while the overall hardware efficiency result agrees with analysis. In the …
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