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 7584 for “"noise"”.
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Road Noise
<p>Road Noise is a collection of fifty poems addressing the relationship between history and place. Specifically, the collection engages ways in which places become artifacts and ways in which artifacts become places in which to dwell, through forms representative of history and tradition as relics …
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Scaling IoT-based noise cancellation to multiple noise sources
… (IoT) sensing techniques with active noise cancellation (ANC) has demonstrated certain benefits over the conventional methods for ANC, including wideband cancellation without blocking the ear and non-causal adaptive filtering. These benefits, however, can only be observed in acoustic …
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Low Frequency Noise in Semiconductors and Metals (Statistics, Gaussian (Noise)
Properties of l/f noise (low frequency resistance fluctuations) are analyzed using the results of a number of experiments, several of which are unique to our laboratory. Measurements of thermally activated noise spectral features, as well as the effect of a surface potential of the noise kinetics …
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Noise in noise out - single molecule studies of molecular motors
… stall forces. Such studies inevitably involve noise, which is inherent in the biological and imaging systems probing these motors. Having to work with noise in the system, we develop a parameter, called the FIONA Index, which serves as a guide for data quality based on noise per step-size (NPS) …
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Separation of tread-pattern noise in tire-pavement interaction noise
Tire-pavement interaction noise is one of the dominant sources of vehicle noise, and one of the most significant sources of urban noise pollution. One critical generation mechanism of tire-pavement interaction noise is tire tread excitation. The tire tread contributes to the tire-pavement …
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Device Shot Noise and Saturation Effects on Oscillator Phase Noise
Oscillator phase noise is an important factor in designing radio frequency (RF) communications hardware. Phase noise directly contributes to adjacent-channel interference and an increase in bit error rate (BER). Understanding the operation of an oscillator can help with the oscillator design …
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Modern noise problem
Thesis (M.B.A.)--Boston University
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Installed jet noise
… the prediction and reduction of installed jet noise, combining both analytical and experimental techniques. In the prediction part, it starts with formulating a low-order but robust isolated jet noise prediction model, based on which a remarkably fast code with pre-informed data is developed. A …
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Active noise attenuation
Thesis (Sc.D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1980.
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Noise-Centric Decoding
… a challenging code-specific task. We establish a noise-centric approach for decoding of error correction codes that enables us to introduce a universal ML soft detection decoder called Soft Guessing Random Additive Noise Decoder (SGRAND), which is a development of a previously described hard …
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Low noise microwave feedback amplifier design with simultaneous signal and noise matching
… into the problem of simultaneous signal and noise match at the input port of low noise amplifiers; feedback LNAs are considered because previous works show that they can achieve the simultaneous match condition. The investigation analyses the influence of both parallel and series feedback …
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Noise propagation model for the design of weather specific noise abatement procedures
This thesis presents an aircraft noise prediction simulation that incorporates actual weather in flight dynamics and noise propagation. The rapid prototyping simulation environment NOIse SIMulator (NOISIM) includes a sound propagation model based on a ray tracing algorithm that incorporates …
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Rotor-Airframe Interaction Noise: Predicting and Mitigating Noise with Artificial Neural Networks
… effect known as the rotor-airframe interaction noise creates an unsteady deterministic loading noise that excites the harmonics of the blade passing frequency by as much as 20 dB, which meant that the installation effect could produce more noise than the rotor itself. As a result, it was …
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Sonic Crystal Noise Barriers
An alternative road traffic noise barrier using an array of periodically arranged vertical cylinders known as a Sonic Crystal (SC) is investigated. As a result of multiple (Bragg) scattering, SCs exhibit a selective sound attenuation in frequency bands called band gaps or stop bands related to the …
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Spin Shot Noise measurement
Charge shot noise, the intrinsic fluctuations in the electrical current resulting from the statistics of the arrival of discrete electronic charges, was predicted more than a century ago2 and has been an invaluable tool for examining the mechanism of charge transport and the nature of …
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Cosmic and solar noise
Thesis (M.A.)--Boston University, 1949. This item was digitized by the Internet Archive.
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Estimating yield curve noise
In this paper, I explore methods for estimating noise in the yield curve. I evaluate optimization methods for fitting yield curves using the Nelson-Siegel model where recommendations in the literature remain unclear. I provide open source code on Github including contributions to the QuantLib C++ …
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