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 73 for “"System monitoring"”.
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Video based system monitoring
… to develop video-based techniques for autonomous monitoring of systems in industrial, manufacturing, and research environments. We develop an algorithm, Dynamic Time and Space Warping, to determine a model-free similarity between an example and an unknown video. The algorithm optimally shifts …
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Advanced System Monitoring with Phasor Measurements
… promising developments in the field of real-time monitoring of power systems. By aligning the time stamps of voltage and current phasor measurements that are consistent with Coordinated Universal Time (UTC), a coherent picture of the power system state can be achieved through either direct …
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Methods for non-intrusive sensing and system monitoring
… A dilemma is becoming increasingly apparent in monitoring and control systems. Networking tools provide potentially inexpensive remote access to information, but gathering useful information, however, may require the installation of an array of costly and intrusive sensors. The promise of highly …
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Measurement-based tools for power system monitoring and operations
This thesis proposes several online power system monitoring and operations tools that leverage real-time measurements with little or no reliance on models obtained offline. Instead of relying on offline models, which can be grossly inaccurate, as in conventional power system monitoring and …
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Gaussian Processes for Power System Monitoring, Optimization, and Planning
… to learn, optimize, and plan the power system. The uncertain and volatile nature of the integrated components necessitates using swift and probabilistic solutions. Gaussian process regression is a machine learning paradigm that provides closed-form predictions with quantified …
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Evaluation of water distribution system monitoring using stochastic dynamic modeling
… simulating the operation of a water distribution system containing pumps and storage tanks, and subject to random demands and contaminant inputs. Long term operation of a hypothetical small town water supply system containing one pump station and one storage tank was simulated while the system was …
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Wide Area Power System Monitoring Device Design and Data Analysis
… data acquisition device used to measure power system frequency at the distribution level. FDRs are time synchronized via the global positioning system (GPS) timing and data recorded by FDRs are time stamped to allow for comparative analysis between FDRs. The data is transmitted over the …
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Metal transport in the Aberjona river system : monitoring, modeling, and mechanisms
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 1995.
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Evaluation of water distribution system monitoring using a combined simulation-optimization approach
… methodology was used to assess monitoring strategies for a drinking water distribution network. Multiple simulation trials of contamination events were used to create input data for an integer optimization problem. A network model, based on the Blacksburg, VA water distribution …
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Civil society's role in health system monitoring and strengthening : evidence from Khayelitsha, South Africa
… society has played a key role within the health system, including advocating for equitable and quality health care services. The purpose of this research is to explore the implementation of a pilot health systems strengthening intervention in primary health facilities in Khayelitsha, South …
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Storm Water System Monitoring for the Small Municipality Under Phase II of the National Pollutant Discharge Elimination System
… and lakes and emphasized the need for more monitoring efforts. With the passage of the National Pollutant Discharge Elimination System (NPDES) Phase II requirements, small municipalities are responsible for storm water impacts on receiving waters within their jurisdiction. For the purposes …
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Investigating the Effects of the Mission Status Graphics Polar Star Display on Failure Detection Time and Situation Awareness for Mission and System Monitoring in General Aviation Aircraft
… humans are notoriously poor monitors of reliable systems over time. However, research is currently being conducted into a new form of display that has the ability to group a myriad of aircraft mission and system status information onto one display, thereby providing pilots with a clear and concise …
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A Wide-Area Perspective on Power System Operation and Dynamics
Classically, wide-area synchronized power system monitoring has been an expensive task requiring significant investment in utility communications infrastructures for the service of relatively few costly sensors. The purpose of this research is to demonstrate the viability of power system monitoring …
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Applications of phasor measurements to the real-time monitoring of a power system
… of phasor measurement units to power system monitoring and synchronous generator modeling. Adjustments to a previously developed PMU placement algorithm are described which observe generator and tie line flows explicitly and reduces the number of PMUs required for a system, still …
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Exploring the Effects of Task Priority on Attention Allocation and Trust Towards Imperfect Automation: A Flight Simulator Study
… of trust towards the automation in the secondary monitoring under higher load on the primary tracking task (e.g., Karpinsky et al., 2018). The results suggested that participants perceived behaviors of the automated system less accurately due to less attention allocated to monitoring of the …
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Optimal placement of phasor measurement units using the Advanced Matrix Manipulation algorithm
… of Phasor Measurement Units in electrical power systems for State Estimation to facilitate improved monitoring and control of the system parameters. The research work done for this thesis begins with review of Supervisory Control and Data Acquisition systems (SCADA). SCADA-based systems are …
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Placing Monitoring Devices in Electric Power Networks Modeled by Block Graphs.
<p>The problem of monitoring an electric power system by placing as few measurement devices in the system as possible is closely related to the well known vertex covering and dominating set problems in graph theory. A set <em>S</em> of vertices is defined to be a power dominating set of a graphs if …
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A Method for PMU-Based Reconfigurable Monitoring
… the accuracy and speed of power network monitoring can be improved. This thesis presents a method for achieving this goal from both hardware and computational perspectives. Practical considerations for PMU placement are discussed, such as instrument transformer calibration, and an …
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Analysis of the effect of planning/design phase factors on rework
… to that growth has been the Space and Airborne Systems (SAS) business sector. To continue this growth, SAS has started initiatives to improve their Operations. One of these initiatives is to reduce the amount of rework performed within the manufacturing centers. By reducing rework, SAS will be …
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Modified Control for Single-Phase Fuel Cell Systems with Input Ripple Compensation and Improved Output Quality
… of electrical energy. The power conditioning system associated with their applications consist of a DC-DC converter stage and a DC-AC inverter stage. In a single-phase fuel cell system, the single-phase inverter introduces a second harmonic component in the current drawn from the fuel cell …
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