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Dissertations / Theses on the topic 'Signals approach'

Author: Grafiati

Published: 3 June 2025

Last updated: 1 August 2025

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1

Tonetto, Leonardo. "A Particle Filter approach to GPS signals." Thesis, KTH, Skolan för informations- och kommunikationsteknik (ICT), 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-177320.

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Localization systems nowadays are extensively used by a growing number of mobile devices, such as smartphones and tablets integrated with various applications, and their use for traditional purposes such as navigation and geodesy have pushed the development of new techniques and improved algorithms. The combination of multiple techniques is the most common approach. Global Navigation Satellite Systems, such as GPS are well known and established localization systems that have great accuracy but are limited to locations where the strength of the signal is good. Therefore a new approach that coul

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2

Jai, Mansouri Nabil. "Deep learning approach for ultrasound signals processing." Electronic Thesis or Diss., Université de Montpellier (2022-....), 2023. http://www.theses.fr/2023UMONS058.

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L’imagerie ultrasonore est une méthode de contrôle non destructif qui est utilisée pour plusieurs applications dans le domaine médical et industriel. Cette méthode présente de nombreux avantages qui favorisent son utilisation par rapport aux autres méthodes de contrôle non destructif. Parallèlement, l’apprentissage profond a attiré l’attention des chercheurs dans de multiples domaines. En particulier, dans le domaine de l’imagerie ultrasonore, plusieurs études basées sur des algorithmes de l’apprentissage profond ont porté sur le traitement des ondes ultrasonores et des signaux ultrasonores qu

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3

Ragaa, Mohamed. "Monitoring partial discharge signals using a chromatic approach." Thesis, University of Liverpool, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.569202.

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A novel approach for extracting information about the insulation integrity of a dielectric from Partial Discharge (PD) signals is described. The approach is based upon chromatic methodologies and involves addressing PD signals with three processors having non-orthogonal (overlapping) responses. The outputs of the three processors are transformed into a number of chromatic parameters designated x, y, z and H, L, S. x, y, z represent the proportion of the signal from each of the three processors. H, L, S represent respectively the dominant phase, effective strength and notional spread of the PD

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4

Mangieri, Eduardo. "An analogue approach for the processing of biomedical signals." Thesis, University of Southampton, 2012. https://eprints.soton.ac.uk/348009/.

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Constant device scaling has signifcantly boosted electronic systems design in the digital domain enabling incorporation of more functionality within small silicon area and at the same time allows high-speed computation. This trend has been exploited for developing high-performance miniaturised systems in a number of application areas like communication, sensor network, main frame computers, biomedical information processing etc. Although successful, the associated cost comes in the form of high leakage power dissipation and systems reliability. With the increase of customer demands for smarter

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5

Lynn, Spencer K. "The signals approach to decision-making in behavioral ecology." Diss., The University of Arizona, 2003. http://hdl.handle.net/10150/289895.

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The "signals approach" is an articulation of signal detection theory (SDT) as a model of decision-making in behavioral ecology. Though previous models of decision-making have taken into account variation in the quality of resources among which choices are made, variation in cues that signal quality has remained unaddressed. Treating stimuli as signals, accounting for stimulus variation as a source of uncertainty, reveals that such variation can have significant consequences on choice behavior. The signals approach functions alongside traditional models to produce a more full understanding of d

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6

Ahmed, Yasir. "A Model-Based Approach to Demodulation of Co-Channel MSK Signals." Thesis, Virginia Tech, 2002. http://hdl.handle.net/10919/36265.

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Co-channel interference limits the capacity of cellular systems, reduces the throughput of wireless local area networks, and is the major hurdle in deployment of high altitude communication platforms. It is also a problem for systems operating in unlicensed bands such as the 2.4 GHz ISM band and for narrowband systems that have been overlaid with spread spectrum systems. In this work we have developed model-based techniques for the demodulation of co-channel MSK signals. It is shown that MSK signals can be written in the linear model form, hence a minimum variance unbiased (MVU) estimator exi

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7

Bozek-Kuzmicki, Maribeth. "Estimation and detection of nonlinear/chaotic signals: A Bayesian-based approach." Case Western Reserve University School of Graduate Studies / OhioLINK, 1995. http://rave.ohiolink.edu/etdc/view?acc_num=case1058209823.

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8

Cao, Yong. "A design of experimental approach to study the road marking luminance contrast and variable message signs /." View online ; access limited to URI, 2004. http://0-wwwlib.umi.com.helin.uri.edu/dissertations/dlnow/3145413.

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9

Gidmark, Anders, and Helena Olofson. "Restoration of clipped sound signals -a weighted Fourier series and AR approach." Thesis, KTH, Optimeringslära och systemteori, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-133464.

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Sound signals can be distorted in many dierent ways, one of them is called clipping. A clipped sound signal diers from a non-clipped signal in the way that the amplitudes of the sound wave that are higher than a certain amplitude threshold has been partially lowered or completely lowered to the threshold, the latter is called hard clipping. Since data is lost when a signal is clipped, there is an interest in restoring the signal. For a hard clipped signal, it is often impossible to perfectly restore the signal. In this thesis two dierent methods for partially restoring a symmetrically hard cli

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10

Sutomo, Heru. "Appropriate saturation flow at traffic signals in Javanese cities : a modelling approach." Thesis, University of Leeds, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.305681.

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11

Iram, Shamaila. "Early detection of neurodegenerative diseases from bio-signals : a machine learning approach." Thesis, Liverpool John Moores University, 2014. http://researchonline.ljmu.ac.uk/4566/.

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Given the fact that people, especially in advanced countries, are living longer due to the advancements in medical sciences which resulted in the prevalence of age-related diseases like Alzheimer’s and dementia. The occurrence of such diseases continues to increase and ultimately the cost of caring for these groups will become unsustainable. Addressing this issue has reached a critical point and failing to provide a strategic way forward will negatively affect patients, national health services and society as a whole. Three distinctive development stages of neurodegenerative diseases (Retrogen

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12

Sahmel, Peter H. "Eigenspace Approach to Specific Emitter Identification of Orthogonal Frequency Division Multiplexing Signals." Thesis, Virginia Tech, 2011. http://hdl.handle.net/10919/35987.

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Specific emitter identification is a technology used to uniquely identify a class of wireless devices, and in some cases a single device. Minute differences in the implementation of a wireless communication standard from one device manufacturer to another make it possi- ble to extract a wireless â fingerprintâ from the transmitted signal. These differences may stem from imperfect radio frequency (RF) components such as filters and power amplifiers. However, the problem of identifying a wireless device through analysis of these key signal characteristics presents several difficulties from an

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13

Shuttleworth, Tim. "A multiresolution approach to the transcription of polyphonic musical signals using neural networks." Thesis, University of Warwick, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.263291.

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14

Kitali, Angela E. "Bayesian Approach on Quantifying the Safety Effects of Pedestrian Countdown Signals to Drivers." UNF Digital Commons, 2017. http://digitalcommons.unf.edu/etd/729.

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Pedestrian countdown signals (PCSs) are viable traffic control devices that assist pedestrians in crossing intersections safely. Despite the fact that PCSs are meant for pedestrians, they also have an impact on drivers’ behavior at intersections. This study focuses on the evaluation of the safety effectiveness of PCSs to drivers in the cities of Jacksonville and Gainesville, Florida. The study employs two Bayesian approaches, before-and-after empirical Bayes (EB) and full Bayes (FB) with a comparison group, to quantify the safety impacts of PCSs to drivers. Specifically, crash modification fac

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15

Rose, Jason Paul. "Approach-avoidance and optimism." Diss., University of Iowa, 2009. https://ir.uiowa.edu/etd/317.

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It is a widely assumed principle that organisms reflexively approach possibilities for pleasure and avoid possibilities for pain. However, highly evolved organisms not only reflexively react to future possibilities of pleasure vs. pain, but also evaluate the chance or risk of actually experiencing such possibilities. Given the import of optimism judgments in shaping behavior and other outcomes, the main goal of the current research was to examine the relationship between the rudimentary systems of approach-avoidance that orient us toward possible outcomes in the environment and the higher-orde

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16

Zysman, Daniel. "The role of neuronal feedback in the detection of transient signals: a computational approach." Thesis, University of Ottawa (Canada), 2010. http://hdl.handle.net/10393/28832.

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This study investigates the role of neuronal feedback in the detection of small amplitude transient signals. We focus specifically on how the weakly electric fish Apteronotus leptorhynchus capture prey such as Daphnia in a noisy environment, by means of its electric sense. Using the electrosensory network as a template, we build a computational model that allows us to evaluate detection performance in two different scenarios: without neuronal feedback (open-loop) and with neuronal feedback (closed-loop). For each network scenario, spike count distributions across realizations are computed in t

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Li, Vincent Yiu Fai. "An artificial intelligence approach to the processing of radar return signals for target detection." Thesis, University of Plymouth, 1999. http://hdl.handle.net/10026.1/2814.

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Most of the operating vessel traffic management systems experience problems, such as track loss and track swap, which may cause confusion to the traffic regulators and lead to potential hazards in the harbour operation. The reason is mainly due to the limited adaptive capabilities of the algorithms used in the detection process. The decision on whether a target is present is usually based on the magnitude of the returning echoes. Such a method has a low efficiency in discriminating between the target and clutter, especially when the signal to noise ratio is low. The performance of radar target

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18

Rörich, Anna [Verfasser], and Dominik [Akademischer Betreuer] Göddeke. "A Bayesian approach to parameter reconstruction from surface electromyographic signals / Anna Rörich ; Betreuer: Dominik Göddeke." Stuttgart : Universitätsbibliothek der Universität Stuttgart, 2021. http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-ds-117074.

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19

Minadakis, George. "Analysis of signals related to the generation process of extreme events : towards a unified approach." Thesis, Brunel University, 2013. http://bura.brunel.ac.uk/handle/2438/12296.

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In the last decades, although the scientific community has attempted to explain a series of complex phenomena, ranging from natural hazards to physical conditions and economic crises, aspects of their generation process still escape our full understanding. The present thesis intends to promote our understanding of the spatiotemporal behavior and the generation mechanisms that govern large and strong earthquakes, employing a broad multidisciplinary perspective for the interpretation of catastrophic events. Two main questions are debated. The first question concentrates on “whether the generatio

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Teeples, Allan W. "An Evolutionary Approach to Optimization of Compound Stock Trading Indicators Used to Confirm Buy Signals." DigitalCommons@USU, 2010. https://digitalcommons.usu.edu/etd/820.

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This thesis examines the application of genetic algorithms to the optimization of a composite set of technical indicator filters to confirm or reject buy signals in stock trading, based on probabilistic values derived from historical data. The simplicity of the design, which gives each filter within the composite filter the ability to act independently of the other filters, is outlined, and the cumulative indirect effect each filter has on all the others is discussed. This system is contrasted with the complexity of systems from previous research that attempt to merge several indicator filter

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SABANOVIC, BERINA. "Pancreatic ductal adenocarcinoma (PDAC) and intercellular signals: from a prognostic approach to a treatment strategy." Doctoral thesis, Università Politecnica delle Marche, 2022. https://hdl.handle.net/11566/295101.

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L'adenocarcinoma duttale del pancreas (PDAC) è la più comune neoplasia pancreatica caratterizzata da un tasso di sopravvivenza molto basso a causa dell'alto tasso di metastasi e della diagnosi tardiva. La classica teoria delle metastasi "seed and soil" non è sufficiente a descrivere completamente la progressione di molti tumori, incluso il PDAC. La disseminazione delle cellule tumorali attraverso la circolazione potrebbe non essere l'unico principio per la formazione di metastasi. L'ipotesi della “genometastasi” rappresenta un altro modello che spiega la disseminazione delle metastas

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22

Rivolta, M. W. "NON-BLIND SOURCE SEPARATION AND FEATURE EXTRACTION: THEORY, APPROACH AND CASE STUDIES IN CARDIAC SIGNALS." Doctoral thesis, Università degli Studi di Milano, 2015. http://hdl.handle.net/2434/278991.

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Source separation (SS) and feature extraction (FE) are tools employed in digital signal processing. The former permits to estimate the values of some sources that have been mixed, and the latter extracts features from a set of measurements. SS and FE are widely applied on biomedical signals such as electrocardiogram (ECG), electroencephalogram, arterial blood pressure, etc., because these signals are collected in noisy environments. For instance, ECG recordings show the electrical activity generated by the whole heart at once. Yet, there are cardiac pathologies or arrhythmias related to only t

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Kaewkongka, Tonphong. "Bearing condition monitoring using acoustic emission and vibration : the systems approach." Thesis, Brunel University, 2002. http://bura.brunel.ac.uk/handle/2438/7862.

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This thesis proposes a bearing condition monitoring system using acceleration and acoustic emission (AE) signals. Bearings are perhaps the most omnipresent machine elements and their condition is often critical to the success of an operation or process. Consequently, there is a great need for a timely knowledge of the health status of bearings. Generally, bearing monitoring is the prediction of the component's health or status based on signal detection, processing and classification in order to identify the causes of the problem. As the monitoring system uses both acceleration and acoustic emi

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24

Proctor, M. "Discourse organization patterns and their signals : A clause relational approach to the analysis of written discourse." Thesis, University of Exeter, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.380344.

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25

Chiarini, Veronica <1988&gt. "Exploring Holocene Climate Signals Recorded in Stalagmites from Bosnia. A Multi Proxy Approach Coupling Petrography and Geochemistry." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2017. http://amsdottorato.unibo.it/8099/1/chiarini_veronica_tesi.pdf.

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The Mediterranean area is a densely populated region characterised by an extremely complex atmospheric circulation, which is particularly sensitive to any modification of air mass dynamics. Thus, the understanding of past climate fluctuations in this area is of great importance to gain insight in the pattern of regional climate variability in response to global climate changes. The central Mediterranean area displayed contrasting climatic responses to atmospheric circulation re-organization following the last glacial period: drier/wetter conditions lasted until about 4.5 ka in the northern/sou

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Mayor, Torres Juan Manuel. "Modeling Heart and Brain signals in the context of Wellbeing and Autism Applications: A Deep Learning Approach." Doctoral thesis, Università degli studi di Trento, 2020. http://hdl.handle.net/11572/247209.

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The analysis and understanding of physiological and brain signals is critical in order to decode user’s behavioral/neural outcome measures in different domain scenarios. Personal Health-Care agents have been proposed recently in order to monitor and acquire reliable data from daily activities to enhance control participants’ wellbeing, and the quality of life of multiple non-neurotypical participants in clinical lab-controlled studies. The inclusion of new wearable devices with increased and more compact memory requirements,and the possibility to include long-size datasets on the cloud and net

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Mayor, Torres Juan Manuel. "Modeling Heart and Brain signals in the context of Wellbeing and Autism Applications: A Deep Learning Approach." Doctoral thesis, Università degli studi di Trento, 2020. http://hdl.handle.net/11572/247209.

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The analysis and understanding of physiological and brain signals is critical in order to decode user’s behavioral/neural outcome measures in different domain scenarios. Personal Health-Care agents have been proposed recently in order to monitor and acquire reliable data from daily activities to enhance control participants’ wellbeing, and the quality of life of multiple non-neurotypical participants in clinical lab-controlled studies. The inclusion of new wearable devices with increased and more compact memory requirements,and the possibility to include long-size datasets on the cloud and net

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28

Samarah, Ashraf [Verfasser]. "A novel approach for generating digital chirp signals using FPGA technology for synthetic aperture radar applications / Ashraf Samarah." Siegen : Universitätsbibliothek der Universität Siegen, 2012. http://d-nb.info/1023156792/34.

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29

Lazariev, Andrii. "A quantum mechanics-based approach for optimization of metabolite basis-sets : application to quantitation of HRMAS-NMR signals." Phd thesis, Université Claude Bernard - Lyon I, 2011. http://tel.archives-ouvertes.fr/tel-00843311.

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From day to day, the role of HRMAS (High-Resolution Magic Angle Sinning) Nuclear Magnetic Resonance Spectroscopy (NMRS) in medical diagnosis is increasing. This technique enables setting up metabolite profiles of ex vivo pathological and healthy tissue. Automatic spectrum quantitation enables monitoring of diseases. However for several metabolites, the values of chemical shifts of proton groups may slightly differ according to the micro-environment in the tissue or cells, in particular to its pH. This hampers accurate estimation of the metabolite concentrations mainly when using quantitation a

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Dugan, Peter Jeffry. "High resolution recognition using a tiered feature approach to search for patterns in signals study on the Portia smokescreen /." Diss., Online access via UMI:, 2005.

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31

Fonley, Morgan Rae. "Effects of oscillatory forcing on hydrologic systems under extreme conditions: a mathematical modeling approach." Diss., University of Iowa, 2015. https://ir.uiowa.edu/etd/2075.

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At the large watershed scale, we emphasize the effects of flow through a river network on streamflow under dry conditions. An immediate consequence of assuming dry conditions is that evapotranspiration causes flow in the river network to exhibit oscillations. When all links in the river network combine their flow patterns, the oscillations interact in ways that change the timing and amplitude of the streamflow waves at the watershed outlet. The geometric shape of the river network is particularly important, so we develop a

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32

Gamble, Christopher Thomas. "A Bayesian chromosome painting approach to detect signals of incomplete positive selection in sequence data : applications to 1000 genomes." Thesis, University of Oxford, 2014. http://ora.ox.ac.uk/objects/uuid:e1f3b484-59b9-4703-ae09-67079408c424.

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Methods to detect patterns of variation associated with ongoing positive selection often focus on identifying regions of the genome with extended haplotype homozygosity - indicative of recently shared ancestry. Whilst these have been shown to be powerful they have two major challenges. First, these methods are constructed to detect variation associated with a classical selective sweep; a single haplotype background gets swept up to a higher than expected frequency given its age. Recently studies have shown that other forms of positive selection, e.g. selection on standing variation, may be mor

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33

Majidi, Mohammad Hassan. "Bayesian estimation of discrete signals with local dependencies." Thesis, Supélec, 2014. http://www.theses.fr/2014SUPL0014/document.

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L'objectif de cette thèse est d'étudier le problème de la détection de données dans le système de communication sans fil, à la fois pour le cas de l'information d'état de canal parfaite et imparfaite au niveau du récepteur. Comme on le sait, la complexité de MLSE est exponentielle en la mémoire de canal et la cardinalité de l'alphabet symbole est rapidement ingérable, ce qui force à recourir à des approches sousoptimales. Par conséquent, en premier lieu, nous proposons une nouvelle égalisation itérative lorsque le canal est inconnu à l'émetteur et parfaitement connu au niveau du récepteur. Ce

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Goodman, Scott Alan. "A Novel Approach to Remove Undesired Field Perturbation Effects on Measurements Made in an Antenna Measurement Range." The Ohio State University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=osu1437555224.

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Canon, Barriga Julio Eduardo. "Downscaling Climate and Vegetation Variability Associated with Global Climate Signals: a new Statistical Approach Applied to the Colorado River Basin." Diss., The University of Arizona, 2009. http://hdl.handle.net/10150/195379.

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This research presents a new multivariate statistical approach to downscale hydroclimatic variables associated with global climate signals, from low-resolution Global Climate Models (GCMs) to high-resolution grids that are appropriate for regional and local hydrologic analysis. The approach uses Principal Component Analysis (PCA) and Multichannel Singular Spectrum Analysis (MSSA) to: 1) evaluate significant variation modes among global climate signals and spatially distributed hydroclimatic variables within certain spatial domain; 2) downscale the GCMs' projections of the hydroclimatic variabl

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Koné, Chaka. "Architecture logicielle et matérielle d'un système de détection des émotions utilisant les signaux physiologiques. Application à la mnémothérapie musicale." Thesis, Université Côte d'Azur (ComUE), 2018. http://www.theses.fr/2018AZUR4042/document.

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Ce travail de thèse s’inscrit dans le domaine de l’informatique affective et plus précisément de l’intelligence artificielle et de l’exploration d’architecture. L’objectif de ce travail est de concevoir un système complet de détection des émotions en utilisant des signaux physiologiques. Ce travail se place donc à l’intersection de l’informatique pour la définition d’algorithme de détection des émotions et de l’électronique pour l’élaboration d’une méthodologie d’exploration d’architecture et pour la conception de nœuds de capteurs. Dans un premier temps, des algorithmes de détection multimoda

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Chiarella, Andrew Francesco 1971. "Enabling the collective to assist the individual : a self-organising systems approach to social software and the creation of collaborative text signals." Thesis, McGill University, 2008. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=115618.

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Authors augment their texts using devices such as bold and italic typeface to signal important information to the reader. These typographical text signals are an example of a signal designed to have some affect on others. However, some signals emerge through the unplanned, indirect, and collective efforts of a group of individuals. Paths emerge in parks without having been designed by anyone. Objects accumulate wear patterns that signal how others have interacted with the object. Books open to important, well studied pages because the spine has worn, for example (Hill, Hollan, Wroblewski, & Mc

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Dupont, Geneviève. "Spatio-temporal organization of cytosolic Ca2+ signals: a modelling approach to the molecular mechanisms and physiological implications of Ca2+ oscillations and waves." Doctoral thesis, Universite Libre de Bruxelles, 2005. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/210912.

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Oh, Yein Anna. "A multi-proxy approach to examining palaeoenvironmental signals and tephrochronology during the Middle Palaeolithic and Epipalaeolithic phases at Grotte des Pigeons, Taforalt, Morocco." Thesis, University of Oxford, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.552774.

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This thesis examines the interplay between the palaeoenvironment and human population during the late Pleistocene in the Maghreb region (North Africa). Currently there is a lack of published palaeoenvironmental studies that cover the last 20-30,000 years and this prompted the work carried out in this thesis. Using a multi- proxy approach it is possible to improve our understanding of broad palaeoenvironmental changes throughout this period and their effects on humans in the area. The study site, Grotte des Pigeons (N 34° 48' 83.9" W 2° 24' 24.4"), is situated in northeast Morocco and is one of

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Böhr, Frank [Verfasser]. "Model-Based Statistical Testing of Embedded Real-Time Software with Continuous and Discrete Signals in a Concurrent Environment: The Usage Net Approach / Frank Böhr." München : Verlag Dr. Hut, 2012. http://d-nb.info/1021072877/34.

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Gustafson, Nathaniel Lee. "A Confidence-Prioritization Approach to Data Processing in Noisy Data Sets and Resulting Estimation Models for Predicting Streamflow Diel Signals in the Pacific Northwest." BYU ScholarsArchive, 2012. https://scholarsarchive.byu.edu/etd/3294.

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Streams in small watersheds are often known to exhibit diel fluctuations, in which streamflow oscillates on a 24-hour cycle. Streamflow diel fluctuations, which we investigate in this study, are an informative indicator of environmental processes. However, in Environmental Data sets, as well as many others, there is a range of noise associated with individual data points. Some points are extracted under relatively clear and defined conditions, while others may include a range of known or unknown confounding factors, which may decrease those points' validity. These points may or may not remain

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Sederlin, Michael. "Traffic State Estimation for Signalized Intersections : A Combined Gaussian Process Bayesian Filter Approach." Thesis, KTH, Transportplanering, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-284198.

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Traffic State Estimation (TSE) is a vital component in traffic control which requires an accurate viewof the current traffic situation. Since there is no full sensor coverage and the collected measurementsare inflicted with random noise, statistical estimation techniques are necessary to accomplish this.Common methods, which have been used in highway applications for several decades, are state-spacemodels in the form of Kalman Filters and Particle Filters. These methods are forms of BayesianFilters, and rely on transition models to describe the system dynamics, and observation models torelate

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Breimesser, Mathias Stefan [Verfasser], and Sannakaisa [Akademischer Betreuer] Virtanen. "Microelectrochemical approach towards the analysis of electrochemical noise signals related to intergranular stress corrosion cracking of austenitic stainless steel / Mathias Stefan Breimesser. Betreuer: Sannakaisa Virtanen." Erlangen : Universitätsbibliothek der Universität Erlangen-Nürnberg, 2012. http://d-nb.info/1028958692/34.

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Guy, Richard, and edu au jillj@deakin edu au mikewood@deakin edu au wildol@deakin edu au kimg@deakin. "DISTANCE, DIALOGUE AND DIFFERENCE A Postpositivist Approach to Understanding Distance Education in Papua New Guinea." Deakin University. School of Education, 1994. http://tux.lib.deakin.edu.au./adt-VDU/public/adt-VDU20041209.093035.

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This study focuses on the experiences of a group of educators engaged in a professional development program by distance education in Papua New Guinea. The participants in this study have been keeping professional journals, for periods of up to three years, about their experiences of distance education. Their discourses have been used to form a connected group of research participants, who use an action framework to focus on problematic issues surrounding distance education in Papua New Guinea. It is a piece of research, framed by critical theory, and characterised by participation, collabora

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Shrestha, Sanjeeb. "Addressing the hidden terminal problem in MU-MIMO WLANs with relaxed zero-forcing approach." Thesis, Optimal ZF precoding vector, 2017. http://hdl.handle.net/10453/116766.

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University of Technology Sydney. Faculty of Engineering and Information Technology.<br>An ever-increasing data rate demand, mainly due to the proliferation of numerous smart devices, enterprises’ mission critical networks, and industry automation, has mounted tremendous pressure on today’s Wireless Local Area Networks (WLANs). Several avenues such as bandwidth, constellation density, the Multiple Input Multiple Output (MIMO) technique, etc., have been explored, e.g., IEEE802.11n/ac standards, to keep up with the demand. Future WLAN standard, e.g., IEEE802.11ax, with potential technologies such

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Ogese, Monday. "Definition of antigenic determinants in drug hypersensitive patients : an integrated clinical, chemical and cellular approach to quantify and characterize the drug signals presented to T-Lymphocytes." Thesis, University of Liverpool, 2014. http://livrepository.liverpool.ac.uk/18733/.

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Idiosyncratic drug hypersensitivity remains a major challenge as it causes high morbidity and mortality. This is complicated by the multiple risk factors implicated and the inability to predict these reactions during the early stages of drug development. Thus, this study attempted to delineate the molecular pathomechanism(s) involved in sulfamethoxazole (SMX) hypersensitivity. The reactive metabolite, nitroso-SMX (SMX.NO) generated through the hepatic bioactivation of SMX has long been hypothesised as a major trigger of these reactions. SMX hypersensitivity has been used as a paradigm to study

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Moran, Peter. "A behavioural and genomic approach to studying the evolution of reproductive isolation : a contact zone between closely related field crickets in the genus Teleogryllus." Thesis, University of St Andrews, 2017. http://hdl.handle.net/10023/10260.

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What processes contribute to the evolution of reproductive isolation and the coexistence of interfertile species in the same habitat? This thesis investigates the relative roles of species interactions and intraspecific processes in contributing to reproductive isolation. I combine behavioural and genomic approaches to test hypotheses about what mechanisms maintain the general species boundary between two closely related field cricket species: Teleogryllus oceanicus and T. commodus. These species are a classic study system for sexual communication and readily hybridize in the laboratory, howev

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Masmoudi, Mohamed Lamine. "Détection d'un défaut localisé dans un multiplicateur d'éolienne : approche par analyse des grandeurs électromécaniques." Thesis, La Rochelle, 2015. http://www.theses.fr/2015LAROS001.

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Le travail présenté dans ce mémoire a été effectué dans le cadre du projet FEDER ”Maintenance prédictive des éoliennes et maîtrise des impacts environnementaux”. Un des objectifs du projet a été de développer, dans le Poitou-Charentes, des compétences dans le domaine de l’éolien en lien avec les activités des laboratoires LIAS et LaSIE. Pour le LIAS, il a été décidé de lancer une nouvelle activité de recherche sur le diagnostic de défauts mécaniques. Le cadre du projet concernant l’éolien, les défauts localisés dans les multiplicateurs ont été privilégiés. Par ailleurs, nous avons restreint l’

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Lee, Kyungmi. "Effective Approaches to Extract Features and Classify Echoes in Long Ultrasound Signals from Metal shafts." Thesis, Griffith University, 2007. http://hdl.handle.net/10072/366794.

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Applications of machine learning demand exploration of feature extraction methods and classifier types in order to obtain systems with reliable highest accuracy. The industrial application discussed in this thesis is the classification of ultrasonic echoes in an A-scan. The application is particularly challenging as A-scans are taken from the end of long large complex metal shafts. Although several pattern analysis and machine learning techniques have been used with success in analyzing A-scan data [43, 89], they are typically in the context of very short signals produced from machine parts li

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Lokutijevskaja, Alina. "Kalbos signalų segmentacija." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2004. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2004~D_20040611_163317-97079.

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