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Dissertations / Theses on the topic 'Parametric model. eng'

Author: Grafiati

Published: 4 June 2021

Last updated: 11 February 2022

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1

Assunção, Hildeu Ferreira da. "Modelo paramétrico para estimativa da radiação solar ultravioleta /." Botucatu : [s.n.], 2003. http://hdl.handle.net/11449/101874.

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Orientador: João Francisco Escobedo<br>Resumo: Neste trabalho é proposto um modelo paramétrico para calcular a irradiância solar ultravioleta global e suas componentes. As transmitâncias referentes à absorção do ozônio, aos espalhamentos de Rayleigh e das nuvens e, à extinção dos aerossóis foram parametrizadas após a integração numérica das fórmulas espectrais, entre 290 a 400 nm. As componentes difusas foram desenvolvidas com base nos trabalhos de Brine e Iqbal (1983), Justus e Paris (1985), Bird e Riordan (1986) e Gueymard (1995). A equação de Van Heuklon (1979) foi incorporada ao modelo, co

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2

Tcheslavski, Gleb V. "Coherence and Phase Synchrony Analysis of Electroencephalogram." Diss., Virginia Tech, 2005. http://hdl.handle.net/10919/30186.

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Phase Synchrony (PS) and coherence analyses of stochastic time series - tools to discover brain tissue pathways traveled by electrical signals - are considered for the specific purpose of processing of the electroencephalogram (EEG). We propose the Phase Synchrony Processor (PSP), as a tool for implementing phase synchrony analysis, and examine its properties on the basis of known signals. Long observation times and wide filter bandwidths can decrease bias in PS estimates. The value of PS is affected by the difference in frequency of the sequences being analyzed and can be related to that freq

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3

Cravotta, Stefan, and Emanuele Grimolizzi. "Simulation of vehicle impact into a steel building : A parametric study on the impacted column end-connections." Thesis, KTH, Bro- och stålbyggnad, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-172341.

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Understanding the true behaviour of impacted structures is the only way to assess their robustness under exceptional events such as vehicle collision. The primary objective of this master’s thesis was to perform a finite element parametric investigation on the influence that some parameters have in steel buildings subjected to vehicle impacts. The parameters chosen for the study, involved uncertainties in the material definition and in the load configuration of the bolts used in the impacted column end-connections. By using the Abaqus software, a finite element model of the structure has been

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4

Mackových, Marek. "Regresní analýza EKG pro odhad polohy srdce vůči měřicím elektrodám." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2014. http://www.nusl.cz/ntk/nusl-220859.

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This work focuses on the regression analysis of morphological parameters calculated from the ECG for estimating the position of the heart to the measuring electrodes. It consists of a theoretical analysis of the problems of ECG recording and description of the data obtained from experiments on isolated animal hearts. On the theoretical part is followed by a description of the calculation parameters suitable for regression analysis and their application in the training and testing of the following regression models to estimate the position of the heart to the measuring electrode.

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Shadat, Wasel Bin. "Specification testing of Garch regression models." Thesis, University of Manchester, 2011. https://www.research.manchester.ac.uk/portal/en/theses/specification-testing-of-garch-regression-models(56c218db-9b91-4d8c-bf26-8377ab185c71).html.

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This thesis analyses, derives and evaluates specification tests of Generalized Auto-Regressive Conditional Heteroskedasticity (GARCH) regression models, both univariate and multivariate. Of particular interest, in the first half of the thesis, is the derivation of robust test procedures designed to assess the Constant Conditional Correlation (CCC) assumption often employed in multivariate GARCH (MGARCH) models. New asymptotically valid conditional moment tests are proposed which are simple to construct, easily implementable following the full or partial Quasi Maximum Likelihood (QML) estimatio

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Branislav, Aleksandrović. "Развој модела динамичких параметара кретања мотоцикла са аспекта безбедности саобраћаја". Phd thesis, Univerzitet u Novom Sadu, Fakultet tehničkih nauka u Novom Sadu, 2017. https://www.cris.uns.ac.rs/record.jsf?recordId=104875&source=NDLTD&language=en.

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Основни предмет истраживања докторске дисертацијепредстављали су рачунарски модели за анализу динамичкихкарактеристика кретања мотоцикла у функцији повећања безбедностисаобраћаја. Значајан удео чине и оргиналана експерименталнаистраживања са опремом која је прилагођена испитивањима, како устатичко-динамичким лабораторијским условима, тако и у сложенимусловима путних испитивања.У oквиру циља дефинисања страдања мотоциклиста дат јеосврт на проблематику безбедности мотоциклиста у саобраћају,стања и тенденције, гледано и анализирано на глобалном нивоу,преко специфичности у појединим ширим географс

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7

Radoslav, Kojić. "Model vrednovanja uticaja saobraćajnih tokova i meteoroloških parametara na koncentracione nivoe hazardnog ugljen-monoksida." Phd thesis, Univerzitet u Novom Sadu, Fakultet tehničkih nauka u Novom Sadu, 2016. https://www.cris.uns.ac.rs/record.jsf?recordId=101041&source=NDLTD&language=en.

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Degradacija kvaliteta vazduh kao najosetljivijeg dela životnesredine, predstavlja jedan od glavnih problema sa kojim sesuočava savremeno društvo. Saobraćaj, naročito kada je reč ovelikim urabanim sredinama, je identifikovan kao glavni izvorhazardnog ugljen-monoksida. Formiranje modela predstavljaneophodan preduslov u procesu prognoze koncentracije ugljen-monoksida u ambijentalnom vazdhu, a samim tim i osnovu zaprovođenja mera i aktivnosti u procesu poboljšanja stanja ikvaliteta vazduha u velikim urbanim sredinama.<br>Degradation of quality of air, as the most fragile part ofenvironment, is one

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Milja, Simeunović. "Modeliranje uticaja režima saobraćajnog toka na elemente rada vozila javnog prevoza." Phd thesis, Univerzitet u Novom Sadu, Fakultet tehničkih nauka u Novom Sadu, 2016. https://www.cris.uns.ac.rs/record.jsf?recordId=97137&source=NDLTD&language=en.

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Promena parametara saobraćajnog toka utiče na promenu elemenata rada vozila JGPP-a, kada ona saobraćaju u me&scaron;ovitom saobraćajnom toku. Elementi rada vozila JGPP-a su definisani redom vožnje pa svako odstupanje od planiranih elemenata rada izaziva određene poremećaje u radu vozila na linijama kao i u celokupnom sistemu JGPP-a. Po pravilu, svaki poremećaj u radu vozila JGPP-a negativno se odražava na kvalitet usluga koje se pružaju korisnicima. U okviru ovog rada, izvr&scaron;ena je analiza uticaja karakteristika saobraćajnog toka na elemente rada vozila JGPP-a. Na osnovu analitičko&ndash

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9

Gorana, Mijatović. "Dekompozicija neuralne aktivnosti: model za empirijsku karakterizaciju inter-spajk intervala." Phd thesis, Univerzitet u Novom Sadu, Fakultet tehničkih nauka u Novom Sadu, 2018. https://www.cris.uns.ac.rs/record.jsf?recordId=107498&source=NDLTD&language=en.

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Disertacija se se bavi analizom mogućnosti brze, efikasnei pouzdane klasterizacije masivnog skupa neuralnihsnimaka na osnovu probabilističkih parametara procenjenihiz obrazaca generisanja akcionih potencijala, tzv."spajkova", na izlazu pojedinih neurona. Neuralnaaktivnost se grubo može podeliti na periode intezivne,umerene i niske aktivnosti. Shodno tome, predložena jegruba dekompozicija neuralne aktivnosti na tri moda kojaodgovaraju navedenim obrascima neuralne aktivnosti, naosnovu dobro poznatog Gilbert-Eliot modela. Modovi sudodatno ra&scaron;članjeni na sopstvena stanja na osnovu

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10

Hall, Otto. "Inference of buffer queue times in data processing systems using Gaussian Processes : An introduction to latency prediction for dynamic software optimization in high-end trading systems." Thesis, KTH, Skolan för datavetenskap och kommunikation (CSC), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-214791.

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This study investigates whether Gaussian Process Regression can be applied to evaluate buffer queue times in large scale data processing systems. It is additionally considered whether high-frequency data stream rates can be generalized into a small subset of the sample space. With the aim of providing basis for dynamic software optimization, a promising foundation for continued research is introduced. The study is intended to contribute to Direct Market Access financial trading systems which processes immense amounts of market data daily. Due to certain limitations, we shoulder a naïve approac

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11

Ivan, Pinćjer. "Razvoj dinamičkog modela kontrole procesnih parametara postupaka rastriranja i njihov uticaj na otisak kao stimulus." Phd thesis, Univerzitet u Novom Sadu, Fakultet tehničkih nauka u Novom Sadu, 2016. http://www.cris.uns.ac.rs/record.jsf?recordId=96011&source=NDLTD&language=en.

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U disertaciji su prikazana istraživanja vezana za objektivnu i subjektivnu,psihofizičku metodu koja u eksperimentu utvrđuje koliki uticaj imaju različitiparametri rasterizacije kao i dimenzija posmatrane slike na percepcijurealističnog prikaza i zrnaste strukture uz poređenje sa objektivnim metodamaobuhvaćenim eksperimentalnim merenjima. U metodologiji istraživanja sukorišćeni uzorci rastrirani sa dva različita tipa rastera frekventnomodularni i amplitudno modularni. Poznatim i priznatim naučnim metodimaobrade podataka došlo se do relevantnih rezultata koji potvrđuju različitostposmatranih rep

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12

El, Gemayel Tarek. "Feasibility of Using Electrical Network Frequency Fluctuations to Perform Forensic Digital Audio Authentication." Thèse, Université d'Ottawa / University of Ottawa, 2013. http://hdl.handle.net/10393/24383.

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Extracting the Electric Network Frequency (ENF) fluctuations from an audio recording and comparing it to a reference database is a new technology intended to perform forensic digital audio authentication. The objective of this thesis is to implement and design a range of programs and algorithms for capturing and extracting ENF signals. The developed C-program combined with a probe can be used to build the reference database. Our implementation of the Short-Time Fourier Transform method is intended for the ENF extraction of longer signals while our novel proposed use of the Autoregressive param

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13

Nenad, Janjić. "Modeli dijagnostike stanja i njihov uticaj na pouzdanost motornih vozila." Phd thesis, Univerzitet u Novom Sadu, Tehnički fakultet Mihajlo Pupin u Zrenjaninu, 2015. http://www.cris.uns.ac.rs/record.jsf?recordId=95010&source=NDLTD&language=en.

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Doktorska disertacija ukazuje na model dijagnostike stanja koji zbog svog istraživačkog karaktera može dovesti do novih naučnih saznanja i metoda praćenja uticaja najvažnijih parametara na pouzdanost vozila, izučavanja ključnih performansi iz oblasti održavanja motornih vozila. Njen cilj je da teorijski i empirijski, kritički, sistematski i kontrolisano defini&scaron;e model dijagnostike stanja kao i da izvr&scaron;i izbor optimalnih parametara, radne temperature i pohabanosti ležajeva, a sve u cilju određivanja sigurnosti funkcionisanja sastavnih komponenti motornih vozila. Proces istraživanj

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14

Mirna, Kapetina. "Adaptivna estimacija parametara sistema opisanih iracionalnim funkcijama prenosa." Phd thesis, Univerzitet u Novom Sadu, Fakultet tehničkih nauka u Novom Sadu, 2017. https://www.cris.uns.ac.rs/record.jsf?recordId=105033&source=NDLTD&language=en.

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Predmet istraživanja je identifikaciji i adaptivna estimacijaparametara široke klase linearnih sistema. Predloženi algoritmiza adaptivnu estimaciju parametara su primenjivi na sisteme koji seopisuju funkcijama prenosa proizvoljnog oblika, što uključuje sistemesa kašnjenjem, distribuiranim parametrima, frakcione sisteme idruge sisteme opisane iracionalnim funkcijama prenosa. Naposletku, dat je algoritam za identifikaciju CNG sistema koji se neizvršava u realnom vremenu i pretpostavlja da struktura modela nijepoznata unapred.<br>The subject of this research is the system identification and adapt

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15

Rouveirolles, Pierre. "Etude de la cinetique en phase gazeuse de reactions du radical nh2 a haute temperature." Orléans, 1987. http://www.theses.fr/1987ORLE2019.

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Reactions du radical nh::(2) avec des alcanes, h::(2) et h::(2)o. Les reactions etudiees jouent un role important dans la modelisation des processus de combustion ou de post-combustion des hydrocarbure et dans la connaissance du mecanisme reactionnel gouvernant le traitement par injection d'ammoniac des oxydes d'azote contenus dans les gaz d'echappement des machines thermiques

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