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.
Results
Showing 1 to 20 of 45 for “"System functionality"”.
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Energy Harvesting from Elliptical Machines: DC-DC Converter Design Using SEPIC Topology
… an elliptical machine, and focuses on improving system functionality at different machine settings without altering the elliptical user’s experience by selecting a new DC-DC converter design, while keeping the other system components intact. The new proposed DC-DC converter design is based on a …
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Flight Testing Small UAVs for Aerodynamic Parameter Estimation
<p>A flight data acquisition 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 …
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Object-process networks & object-process diagrams : implementation issues for oil exploration systems
… the ability of OPN (Object-Process- Network), a system-architecture meta-language, to model complex systems and identify architectures to address those systems. It proposes ways to generate "out-of-the-box" solutions to technical problems, to weight a portfolio of objects as a possible way to …
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Implementing Run-Time Systems in a Compiler
… a model for the implementation of run-time systems. We divide the implementation of the run-time system in 3 sub-tasks: implementing the data types, implementing the environment, and implementing the basic control flow. To each sub-task we present a model of how solutions are specified. We …
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Modeling and Simulation of Integrated Microstructures and Systems
… cycle time; thus the cost of integrated microsystems. We have developed (i) automatic nonlinear model-order reduction methods to develop accurate behavioral models for MEMS devices; (ii) electrical modeling of MEMS devices; and (iii) an event-driven multilevel simulation environment to enable …
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T2 Characterization of Oil-In-Water Emulsions for NMR Sensor Applications
… for a human subject to calibrate and ensure system functionality. The microstructure of an emulsion also mimics the multiple compartments of tissue such as the intra and extracellular volumes of muscle and adipose tissue. We aim to use oil-in-water emulsions as phantoms to ensure device …
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Placement and routing for reconfigurable systems.
… reconfiguration latency of reconfigurable systems. This presents a part of design process concerned with positioning and connecting design blocks in a logic gate array. The aim of the research is to optimise the placement and interconnect strategy such that dynamic changes in system …
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A New Guidance System for Aircraft Based on GPS
… is examined in this thesis. The proposed system employs GPS to calculate the offset from the track as well as the instantaneous ground speed vector, to provide steering information. Thus, precise tracking is possible in real time basis, even in high winds.</p> <p>This research, which …
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Documenting the Impact of Lifeline Service Disruptions on Healthcare System Performance Following Earthquakes Since 2000: A Reconnaissance Report Analysis
… are particularly vulnerable to decreased functionality post-earthquake when they are needed most. This research assesses if and how reconnaissance reporting has covered the impacts lifeline service disruptions have had on healthcare system performance for earthquakes magnitude 6.0 and …
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Cyber-Physical Systems: two case studies in design methodologies
To analyze embedded systems, engineers use tools that can simulate the performance of software components executed on hardware architectures. When the embedded system functionality is strongly correlated to physical quantities, as in the case of Cyber-Physical System (CPS), we need to model …
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VORTOS : Versatile Object-oriented Real-Time Operating System
… of abstraction, so have computer operating systems. In order to achieve the desired level of functionality, operating systems have become less flexible and overly complex. The additional complexity and abstraction introduced often leads to less efficient use of hardware and increased …
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PRESERVING THE VIABILITY OF NUCLEAR COMMAND, CONTROL, AND COMMUNICATIONS IN THE MODERN AGE
… that reduce incentive to degrade strategic system functionality while concomitantly improving overall defense. To accomplish this, threats to NC3 were explored in the new domains of cyberspace and outer space, followed by an analysis of recent choices in the political sphere where …
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Schmidtea mediterranea planaris as a novel animal model for investigating the dynamics of nervous system development in fetal alcohol spectrum disorder
… exploited this property to characterize nervous system development in the presence of ethanol. Functional testing of head-regenerating planaria included planarian locomotor velocity testing to assess locomotor capabilities and light avoidance testing to assess development of innate negative …
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An investigation into self-test concepts in reconfigurable modular avionics systems
… drive a constant demand for the increase in system functionality and performance, improvements in availability, survivability and mission effectiveness whilst reducing aircrew workload and life cycle costs. The rapid development of integrated circuit design and fabrication technology, …
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Design of an electronically-actuated gas lift safety valve
… of an electronically-actuated gas lift safety system that builds on a prior invention based on shape-memory alloy, but, among other features, can handle the slowly changing temperature conditions downhole. The newly-designed control circuit is integrated into the original shape memory alloy …
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Custom High-Speed ADC for mmWave Digital Beamformers
… data rates has placed pressure on A/D converter systems to achieve a higher sample rate and bandwidth. This thesis aims to explore and implement a nascent idea of using a reconfigurable, oversampled 1-bit converter to achieve a high signal bandwidth and lower power consumption for future use in …
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Pervasive handheld computing systems
… has coined the term pervasive handheld computing systems to refer to this type of mobile device. Portable computers are faced with a number of constraints in trying to meet these objectives. They are physically constrained by their size, their computational power, their memory resources, their …
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Towards generative compression
Graceful degradation is a metric of system functionality which guarantees that performance declines gradually as resource constraints increase or components fail. In the context of data compression, this translates to providing users with intelligible data, even in the presence of bandwidth …
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Formal Models and Refinement for Graphical User Interface Design
… require that we correctly describe (or specify) systems in order to prove properties about our proposed solution prior to building it. We must then follow a rigorous process to transform our specification into an implementation to ensure that the properties we have proved are retained. When we …
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An algorithm must be seen to be believed : right to an explanation of automated decision-making in the GDPR
… biases are being reported regularly. Errors like systematically classifying some ethnicities as gorillas or charging higher interest rates to minorities compared to non-minorities. To counter these biases and errors, scholars and researchers have stressed the importance of increased transparency …
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