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 49 for “"Power usage"”.
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Topics in Power Usage in Network Services
… of computing technology has created a world powered by millions of computers. Often these computers are idly consuming energy unnecessarily in spite of all the efforts of hardware manufacturers. This thesis examines proposals to determine when to power down computers without negatively …
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Privacy-preserving power usage control in smart grids
… been emerging as the next-generation intelligent power grid system because of its ability to efficiently monitor, predicate, and control energy generation, transmission, and consumption by analyzing users' real-time electricity information. Consider a situation in which the utility company would …
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Facility Power Usage Prediction with Artificial Neural Networks
… is employed to model and predict the facility power usage of campus buildings. The prediction is based on the building and the weather conditions such as temperature, humidity, wind speed, etc. Various neural network configurations are discussed; satisfactory computer simulation results are …
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The use of hourly, rather than averaged, data time series modelling to improve projections of power usage and demand in California through to 2030
This thesis presents a comprehensive life-cycle and net energy analysis of California’s energy transition, focused on two major developments: the large-scale deployment of photovoltaic (PV) systems with lithium-ion battery (LIB) storage and the widespread adoption of battery electric vehicles …
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Hardware and software architecture for non-contact, non-intrusive load monitoring
… monitor measures voltage and current in a single power line that supplies electricity to multiple devices. Signal processing algorithms are then used to separate the summed power usage into the individual power usage of each device. This thesis presents three new developments: a hardware …
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Scheduling to minimize power consumption using submodular functions
… offline task scheduling to minimize power usage. Here each processor has an arbitrary specified power consumption to be turned on for each possible time interval, and each job has a specified list of time interval/processor pairs during which it could be scheduled. (A processor need …
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Experimental Design and Comparative Testing of a Hybrid-Cooled Computer Cluster
… tradeoffs in temperature, performance, and power usage presented in the case between classical airflow based heat sink mechanisms to water provided directly at the heatsink. Having control over a discrete chiller will provide answers to the CPU temperatures, power usage, and performance at …
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Towards mitigating co-incident peak power consumption and managing energy utilization in heterogeneous clusters
… suffer a significant cost in terms of energy and power consumption. To address this cost we have developed our own framework, Electron, for use with Mesos. Electron is designed to be configurable with heuristic-driven power capping policies along with different scheduling policies such as Bin …
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Unsupervised disaggregation of low frequency power measurements
… about climate change are motivating residential power conservation efforts. We investigate the effectiveness of several unsupervised disaggregation methods on low frequency power measurements collected in real homes. Specifically, we consider variants of the factorial hidden Markov model. Our …
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Energy efficient compressed sensing in wireless sensor networks via random walk
… we minimize communication cost for efficient power usage. At first, a compressive distributed sensing (CDS) algorithm is proposed but is then modified to decrease communication costs. The final algorithm presented is compressive distributed sensing with random walk CDS(RW); an algorithm that …
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Intrinsic PUFs for commodity devices
… to low resource embedded systems because of power usage, time, hardware resource, or computational constraints.<br/><br/>One solution that has been proposed is the Physical Unclonable Function (PUF), a hardware security primitive which generates identifiers from low level manufacturing …
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Parasitic mobility for sensate media
… the main problems with these types of systems: power usage, node size, and node complexity. This work proposes a solution to these problems in the form of parasitically actuated nodes that gain their mobility and local navigational intelligence by selectively engaging and disengaging from mobile …
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A performance study of Multiframe Interleaving for CDMA2000 1X cellular system
… services. This thesis analyzes the average power usage and data throughput with longer frames for various channel models and radio configurations. Through experimental and simulative testing in a laboratory setting, MFI is shown to use less power per unit of throughput at the link layer in …
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VLSI implementation of a massively parallel wavelet based zerotree coder for the intelligent pixel array
… devices that are low in complexity, low in power usage yet perform the given task efficiently. Devices of this nature have been made available through the use of massively parallel processing arrays such as the Intelligent Pixel Processing Array. The Intelligent Pixel Processing array is a …
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SeeGreen : a tool for real-time distributed monitoring of home electricity consumption
… easy collection of distributed information about power usage (quantity and quality) in residential facilities. In Europe many appliances are emerging that incorporate power measuring devices for power regulation. However, products for retrofitting old appliances or recording measurements from …
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ASSESSING THE IMPACT OF TACTICAL MISSION PROFILES ON THE DEVELOPMENT OF POWER PREDICTION SOFTWARE
… (E2O) needs to conduct an analysis of small unit power requirements. This study assesses both current and future (approx. 2024) small unit configurations, and the impact that operational conditions and tactical scenarios have on power requirements, beyond a straightforward reference to technical …
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Effect of automotive electrical system changes on fuel consumption using incremental efficiency methodology
… a continuous increase in automotive electric power usage. Future projections show no sign of it decreasing. Therefore, the automotive industry has a need to either improve the current 12 Volt automotive electrical system or move to a higher voltage vehicle electric system. Both of these …
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Physical layer encryption using fixed and reconfigurable antennas
… using fixed arrays, including tradeoffs with power usage and computational complexity. In addition, a method of producing direction-dependent distortion using reconfigurable arrays is also shown. These two methods are combined and shown to be more secure and power-efficient than either in …
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Increasing fuel cell run time by preventing precipitation of reactants or products in direct sodium borohydride fuel cell
… for realistic run time calculation for constant power usage. Our model predicts an improvement in fuel cell run time with optimum water addition. This would require additional water management schemes as discussed in the work.
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Evaluation of non-intrusive monitoring for condition based maintenance applications on US Navy propulsion plants
… and current transducer to a ship's existing power distribution system. The NILM was originally developed to monitor electrical power usage in buildings where it was noticed that it could disaggregate and report the operation of individual loads when many loads were present. The limits of this …
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