Дисертації з теми "Source environments"
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Ma, Ling. "Acoustic environments as a source of context information." Thesis, University of East Anglia, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.423507.
Повний текст джерелаChoi, Bumsuk. "Acoustic source localization in 3D complex urban environments." Diss., Virginia Tech, 2012. http://hdl.handle.net/10919/27739.
Повний текст джерелаPh. D.
Dale, Gregory E. "Electron accelerator-driven photoneutron source for clinical environments /." free to MU campus, to others for purchase, 2003. http://wwwlib.umi.com/cr/mo/fullcit?p3091914.
Повний текст джерелаYang, Hui. "Methodologies for information source selection under distributed information environments." Access electronically, 2005. http://www.library.uow.edu.au/adt-NWU/public/adt-NWU20060511.123303/index.html.
Повний текст джерелаJohansson, Anders M. "Acoustic sound source localisation and tracking : in indoor environments /." Karlskrona : Department of Signal Processing, Blekinge Institute of Technology, 2008. http://www.bth.se/fou/Forskinfo.nsf/allfirst2/beeb3e73884ff408c125744f00370a08?OpenDocument.
Повний текст джерелаTalantzis, Fotios. "Equalization and source separation techniques in acoustic reverberant environments." Thesis, Imperial College London, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.428487.
Повний текст джерелаJohansson, Anders. "Acoustic Sound Source Localisation and Tracking : in Indoor Environments." Doctoral thesis, Blekinge Tekniska Högskola [bth.se], School of Engineering - Dept. of Signal Processing, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-00401.
Повний текст джерелаO'Leary, Kevin C. "Source apportionment of volatile organic compounds in urban micro-environments." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0015/MQ48454.pdf.
Повний текст джерелаHof, Christoph. "Optimization of source and receiver placement in multistatic sonar environments." Thesis, Monterey, California: Naval Postgraduate School, 2015. http://hdl.handle.net/10945/45875.
Повний текст джерелаIncluces supplemental materials.
The usage of non-collocated sources and receivers in multistatic sonar networks (MSNs) has emerged as a promising area of opportu-nity in sonar systems. This thesis addresses point coverage sensing problems in MSNs, where a number of points of interest (targets) must be monitored. For detection we assume cookie-cutter sensors and a two-dimensional homogenous environment. Based on cur-rent algorithms and the theory of detection discs, we develop the new preprocessing algorithm LOC-GEN-II to determine possible locations for sources given a set of targets and receivers. The high efficiency of this algorithm is based on the greedy-like approach it is built upon and allows a significant reduction of computing time compared to a recent algorithm from the literature. We also address the problem of optimally placing multiple sources and receivers for a given set of targets. Up to now, this problem was solved with the simplification of setting receivers randomly and placing only sources optimally.We develop LOC-GEN-II further into a two-step process of determining near optimal positions for receivers and sources successively. The procedure is implemented as a faster one-step solution and a slower iterative approach, which leads to better detection results. With this approach we show that the newly developed algorithms allow solution of multiple sensor placement problems in an acceptable time with significantly better detection results compared to the benchmark.
Cheal, Chris. "Light source spectrum brightness and visual performance in pedestrian environments." Thesis, University of Sheffield, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.443864.
Повний текст джерелаKhan, Muhammad Salman. "Informed algorithms for sound source separation in enclosed reverberant environments." Thesis, Loughborough University, 2013. https://dspace.lboro.ac.uk/2134/13350.
Повний текст джерелаBettadapura, Raghuprasad Shivatejas. "Echo Delay Estimation to Aid Source Localization in Noisy Environments." Thesis, Virginia Tech, 2014. http://hdl.handle.net/10919/50517.
Повний текст джерелаMaster of Science
Mutuku, James. "An open source model for teaching environments incorporating wireless devices." Master's thesis, University of Cape Town, 2007. http://hdl.handle.net/11427/6422.
Повний текст джерелаAttempts have been made at bridging the digital divide in schools using desktop PC systems without much success. As a result many computer laboratories sit empty. There are many reasons for these failures. Often there are incompatibilities of software applications for the PC and its operating systems. In other cases non-existent infrastructure such as networking support for the operations. This paper describes a project aimed at achieving a more successful school educational environment by using students' mobile devices, desktop computer and open source applications. The project therefore, looks forward to a time when schools no longer have to purchase computers for their students but rather utilize mobile devices already owned by students. The paper presents results of an evaluation study on the interaction of students' moble devices with course material and teachers using open source applications in a teaching environment. The pilot project was undertaken by Schoolnet in Namibia. The result presented show that although there were constraints on such devices the educational benefits far outweight the physical limitations.
Harris, Jack D. "Online source separation in reverberant environments exploiting known speaker locations." Thesis, Loughborough University, 2015. https://dspace.lboro.ac.uk/2134/19627.
Повний текст джерелаO'Leary, Kevin C. (Kevin Charles) Carleton University Dissertation Engineering Civil and Environmental. "Source apportionment of volatile organic compounds in urban micro-environments." Ottawa, 1999.
Знайти повний текст джерелаZhao, Yue. "Independent Component Analysis Enhancements for Source Separation in Immersive Audio Environments." UKnowledge, 2013. http://uknowledge.uky.edu/ece_etds/34.
Повний текст джерелаWilson, Kevin W. (Kevin William) 1977. "Estimating uncertainty models for speech source localization in real-world environments." Thesis, Massachusetts Institute of Technology, 2006. http://hdl.handle.net/1721.1/38227.
Повний текст джерелаIncludes bibliographical references (p. 131-140).
This thesis develops improved solutions to the problems of audio source localization and speech source separation in real reverberant environments. For source localization, it develops a new time- and frequency-dependent weighting function for the generalized cross-correlation framework for time delay estimation. This weighting function is derived from the speech spectrogram as the result of a transformation designed to optimally predict localization cue accuracy. By structuring the problem in this way, we take advantage of the nonstationarity of speech in a way that is similar to the psychoacoustics of the precedence effect. For source separation, we use the same weighting function as part of a simple probabilistic generative model of localization cues. We combine this localization cue model with a mixture model of speech log-spectra and use this combined model to do speech source separation. For both source localization and source separation, we show significantly performance improvements over existing techniques on both real and simulated data in a range of acoustic environments.
by Kevin William Wilson.
Ph.D.
Schofield, Andrew John. "Knowledge and resource sharing in free and open source software community environments." Thesis, University of Salford, 2010. http://usir.salford.ac.uk/26898/.
Повний текст джерелаHummersone, Christopher. "A psychoacoustic engineering approach to machine sound source separation in reverberant environments." Thesis, University of Surrey, 2011. http://epubs.surrey.ac.uk/2923/.
Повний текст джерелаMassoud, Mostafa. "Evaluation of an Adaptive AUTOSAR System in Context of Functional Safety Environments." Master's thesis, Universitätsbibliothek Chemnitz, 2017. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-230004.
Повний текст джерелаCollins, Christopher Michael. "Development of a Virtual Acoustic Showroom for Simulating Listening Environments and Audio Speakers." Thesis, Virginia Tech, 2004. http://hdl.handle.net/10919/9965.
Повний текст джерелаMaster of Science
Ma, KeYang. "Hydrocarbon source and depositional environments in the central Papual Basin, Papua New Guinea /." [St. Lucia, Qld.], 2005. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe18901.pdf.
Повний текст джерелаTsay, Jason Tye. "Software Developers Using Signals in Transparent Environments." Research Showcase @ CMU, 2017. http://repository.cmu.edu/dissertations/948.
Повний текст джерелаValtierra, Robert Daniel. "Source location of narrow band signals in multipath environments, with application to marine mammals." Thesis, Boston University, 2013. https://hdl.handle.net/2144/11072.
Повний текст джерелаPassive acoustic localization has benefited from many major developments and has become an increasingly important focus point in marine mammal research. Several challenges still remain. This work seeks to address several of these challenges such as tracking the calling depths of baleen whales. In this work, data from an array of widely spaced Marine Acoustic Recording Units (MARUs) was used to achieve three dimensional localization by combining the methods Time Difference of Arrival (TDOA) and Direct-Reflected Time Difference of Anival (DRTD) along with a newly developed autocorrelation technique. TDOA was applied to data for two dimensional (latitude and longitude) localization and depth was resolved using DRTD. Previously, DRTD had been limited to pulsed broadband signals, such as sperm whale or dolphin echolocation, where individual direct and reflected signals are separated in time. Due to the length of typical baleen whale vocalizations, individual multipath signal arrivals can overlap making time differences of arrival difficult to resolve. This problem can be solved using an autocorrelation, which can extract reflection information from overlapping signals. To establish this technique, a derivation was made to model the autocorrelation of a direct signal and its overlapping reflection. The model was exploited to derive performance limits allowing for prediction of the minimum resolvable direct-reflected time difference for a known signal type. The dependence on signal parameters (sweep rate, call duration) was also investigated. The model was then verified using both recorded and simulated data from two analysis cases for North Atlantic right whales (NARWs, Eubalaena glacialis) and humpback whales (Megaptera noveaengliae). The newly developed autocorrelation technique was then combined with DRTD and tested using data from playback transmissions to localize an acoustic transducer at a known depth and location. The combined DRTD-autocorrelation methods enabled calling depth and range estimations of a vocalizing NARW and humpback whale in two separate cases. The DRTD-autocorrelation method was then combined with TDOA to create a three dimensional track of a NARW in the Stellwagen Bank National Marine Sanctuary. Results from these experiments illustrated the potential of the combined methods to successfully resolve baleen calling depths in three dimensions.
Swartling, Mikael. "Direction of Arrival Estimation and Localization of Multiple Speech Sources in Enclosed Environments." Doctoral thesis, Blekinge Tekniska Högskola, Avdelningen för elektroteknik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-00520.
Повний текст джерелаHernandez, Tatiana X. "Rainfall-Runoff Modeling in Humid Shallow Water Table Environments." Scholar Commons, 2001. https://scholarcommons.usf.edu/etd/1537.
Повний текст джерелаGeoghegan, Mark, and Robert Schumacher. "PERFORMANCE RESULTS USING DATA QUALITY ENCAPSULATION (DQE) AND BEST SOURCE SELECTION (BSS) IN AERONAUTICAL TELEMETRY ENVIRONMENTS." International Foundation for Telemetering, 2017. http://hdl.handle.net/10150/627011.
Повний текст джерелаMitra, Raktim. "Collaborative learning in Open Source Software (OSS) communities: The dynamics and challenges in networked learning environments." Thesis, Virginia Tech, 2011. http://hdl.handle.net/10919/43463.
Повний текст джерелаMaster of Science
Parikh, Devangi Nikunj. "Improving the quality of speech in noisy environments." Diss., Georgia Institute of Technology, 2012. http://hdl.handle.net/1853/45889.
Повний текст джерелаRiley, H. Bryan. "Matched-field source detection and localization in high noise environments a novel reduced-rank signal processing approach." Ohio : Ohio University, 1994. http://www.ohiolink.edu/etd/view.cgi?ohiou1173982711.
Повний текст джерелаMahlstedt, Nicolaj [Verfasser], and Brian [Akademischer Betreuer] Horsfield. "Evaluating the late gas potential of source rocks stemming from different sedimentary environments / Nicolaj Mahlstedt. Betreuer: Brian Horsfield." Berlin : Universitätsbibliothek der Technischen Universität Berlin, 2012. http://d-nb.info/102779825X/34.
Повний текст джерелаMasek, Caroline Humphrey. "Adapting the SCS method for estimating runoff in shallow water table environments." Scholar Commons, 2002. http://purl.fcla.edu/fcla/etd/SFE0000040.
Повний текст джерелаJankaew, Kruawun. "Organic geochemistry of the Neogene sediments from the Pattani Basin, Gulf of Thailand, palaeodepositional environments and hydrocarbon source potential." Thesis, University of Aberdeen, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.252117.
Повний текст джерелаAspeslagh, Sofie. "An investigation into the perceptual adaptation to spatialised multi-source acoustic environments in normal-hearing and hearing-impaired listeners." Thesis, University of the West of Scotland, 2017. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.739195.
Повний текст джерелаSideris, Nikolaos. "Spatial decision support in urban environments using machine learning, 3D geo-visualization and semantic integration of multi-source data." Thesis, Limoges, 2019. http://www.theses.fr/2019LIMO0083/document.
Повний текст джерелаThe constantly increasing amount and availability of urban data derived from varying sources leads to an assortment of challenges that include, among others, the consolidation, visualization, and maximal exploitation prospects of the aforementioned data. A preeminent problem affecting urban planning is the appropriate choice of location to host a particular activity (either commercial or common welfare service) or the correct use of an existing building or empty space. In this thesis we propose an approach to address the preceding challenges availed with machine learning techniques with the random forests classifier as its dominant method in a system that combines, blends and merges various types of data from different sources, encode them using a novel semantic model that can capture and utilize both low-level geometric information and higher level semantic information and subsequently feeds them to the random forests classifier. The data are also forwarded to alternative classifiers and the results are appraised to confirm the prevalence of the proposed method. The data retrieved stem from a multitude of sources, e.g. open data providers and public organizations dealing with urban planning. Upon their retrieval and inspection at various levels (e.g. import, conversion, geospatial) they are appropriately converted to comply with the rules of the semantic model and the technical specifications of the corresponding subsystems. Geometrical and geographical calculations are performed and semantic information is extracted. Finally, the information from individual earlier stages along with the results from the machine learning techniques and the multicriteria methods are integrated into the system and visualized in a front-end web based environment able to execute and visualize spatial queries, allow the management of three-dimensional georeferenced objects, their retrieval, transformation and visualization, as a decision support system
Mello, Marcio Rocha. "Geochemical and molecular studies of the depositional environments of source rocks and their derived oils from the Brazilian marginal basins." Thesis, University of Bristol, 1988. http://hdl.handle.net/1983/a29755bf-1342-4601-8c5a-23849275f37c.
Повний текст джерелаSpaak, Gemma. "Molecular and isotopic perspectives on Australian petroleum systems: Hydrocarbon fluid correlations and source rock depositional environments in the Canning and Browse basins." Thesis, Curtin University, 2017. http://hdl.handle.net/20.500.11937/69412.
Повний текст джерелаHanus, Michael D. "The Impact of Source and Message Customization on Reactance: A Model for Customization Reducing Reactance to Persuasive Messages." The Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1461235493.
Повний текст джерелаBurn, Laurie. "Isotopic and elemental tracers in ice and snow as indicators of source regions of aerosols and changing environmental conditions." Thesis, Curtin University, 2009. http://hdl.handle.net/20.500.11937/152.
Повний текст джерелаYuan, Jia [Verfasser], Ralf [Akademischer Betreuer] Riedel, and Zhaoju [Akademischer Betreuer] Yu. "SiHf(B)CN-based ultra-high temperature ceramic nanocomposites: Single-source precursor synthesis and behavior in hostile environments / Jia Yuan. Betreuer: Ralf Riedel ; Zhaoju Yu." Darmstadt : Universitäts- und Landesbibliothek Darmstadt, 2015. http://d-nb.info/111191138X/34.
Повний текст джерелаNangle, Edward J. "The effect of Trinexapac Ethyl and three Nitrogen sources on creeping bentgrass (Agrostis stolonifera) grown under three light environments." The Ohio State University, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=osu1204660743.
Повний текст джерелаBrigatti, Junior Luiz Antonio. "A utilização de tecnologias digitais Open Source: uma contribuição ao estudo comparativo de ambientes virtuais na PUC-SP." Pontifícia Universidade Católica de São Paulo, 2010. https://tede2.pucsp.br/handle/handle/18257.
Повний текст джерелаMethods that allow the observation of users of virtual learning environments acting in the work place tend to become increasingly more necessary when the number of computer users and the inherent complexity of systems grow. Processes of continuous assessment carried out during the life cycle of Virtual Learning Environments (VLEs) seem to be required condition for users to reach good results. This research used information provided by professors to verify their usage process, and compare the use of the open source tools and the difficulties found in the virtual environments Moodle and TelEduc , both in use at PUC-SP. Thus, this dissertation argues that approaches in which VLEs are used by the faculty members of the School of Economics, Administration, Accounting and Actuary (FEA at PUC-SP) represent tools of effective gain in quality
À medida que cresce o número de usuários de computadores e a inerente complexidade dos sistemas, métodos para observar usuários de ambientes de aprendizagem virtuais em seu local de trabalho tendem a ser cada vez mais necessários. Processos de avaliação contínua, a serem executados durante o ciclo de vida dos ambientes virtuais de aprendizagem (AVAs), se apresentam como condição necessária a um bom resultado para seus usuários. Esta pesquisa buscou averiguar com usuários docentes o processo da utilização, além de comparar o uso das ferramentas open source e as dificuldades encontradas nos ambientes virtuais Moodle e Teleduc na PUC-SP. Assim, nessa dissertação argumenta-se que abordagens com a utilização de AVAs pelo corpo docente da Faculdade de Economia, Administração, Contabilidade e Atuária (FEA-PUC-SP), representam uma ferramenta de efetivo ganho de qualidade
Hursky, Paul. "Using ambient noise and sources of opportunity to estimate environment parameters and improve matched field source detection and localization /." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 2001. http://wwwlib.umi.com/cr/ucsd/fullcit?p3000404.
Повний текст джерелаHernandez, Unpingco Jose. "Environmental source tracking using one sensor /." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 1997. http://wwwlib.umi.com/cr/ucsd/fullcit?p9821366.
Повний текст джерелаLee, Young Chang Kai-Hsiung. "Automated source code measurement environment for software quality." Auburn, Ala., 2007. http://repo.lib.auburn.edu/2007%20Fall%20Dissertations/Lee_Young_28.pdf.
Повний текст джерелаGUENA, ANA M. de O. "Avaliação ambiental de diferentes formas de geração de energia elétrica." reponame:Repositório Institucional do IPEN, 2007. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11501.
Повний текст джерелаMade available in DSpace on 2014-10-09T14:01:39Z (GMT). No. of bitstreams: 0
Dissertação (Mestrado)
IPEN/D
Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
Feshbach, Emma (Emma Elizabeth). "GroBot : an open-source model for controlled environment agriculture." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/98965.
Повний текст джерелаCataloged from PDF version of thesis.
Includes bibliographical references (pages 50-51).
The growing demand for food challenges our current farming methods, motivating the search for new paradigms for agricultural production. In this work, the GroBot is presented as an open-source model for the fourth agricultural revolution. This indoor cultivation system was fabricated to provide a replicable supply of produce, using modular parts that are easily to machine, assemble, and manufacture. Off-the shelf, low cost components and publically available designs ensure accessibility for the average person, enabling peer-produced knowledge and community participation. Networked data and software will further support the GroBot system, building off past maker movements like the RepRap 3D printer and Linux operating system. The initial prototypes were optimized, evaluating the materials, structures, manufacturing, and assembly processes. A hardware assembly manual and parts list were created with the goal of mobilizing growers, farmers, and hackers to participate in iterative development and information sharing. Through its technological, biological, and social platform, the GroBot forms the foundation for the future of food at both the consumer and industrial scale.
by Emma Feshbach.
S.B.
Harrington, Rebecca M. "The effects of faulting environment on the seismic source triggering, source parameter relationships, and energy considerations /." Diss., Restricted to subscribing institutions, 2008. http://proquest.umi.com/pqdweb?did=1610470811&sid=1&Fmt=2&clientId=1564&RQT=309&VName=PQD.
Повний текст джерелаPope, Joanna Mary Haas Charles N. "Tracking the sources of fecal contamination in the Wissahickon Creek Watershed using Phenotypic and genotypic analytical methods /." Philadelphia, Pa. : Drexel University, 2009. http://hdl.handle.net/1860/3074.
Повний текст джерелаPuente, Isabel. "Sources of Coliphage to the Marine Environment." NSUWorks, 1991. http://nsuworks.nova.edu/occ_stuetd/361.
Повний текст джерела