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Dissertations / Theses on the topic 'Second order delay system'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Kau, Chung-Ta. "Robust stability margin and LQR of second-order systems." Thesis, Georgia Institute of Technology, 1991. http://hdl.handle.net/1853/12044.

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2

Ledgeway, Timothy. "The detection of second-order motion in the human visual system." Thesis, Cardiff University, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.318558.

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3

Naftali, Eran 1971. "First order bias and second order variance of the Maximum Likelihood Estimator with application to multivariate Gaussian data and time delay and Doppler shift estimation." Thesis, Massachusetts Institute of Technology, 2000. http://hdl.handle.net/1721.1/88334.

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4

Sroczinski, Matthias [Verfasser]. "Global existence and asymptotic decay for quasilinear second-order symmetric hyperbolic systems of partial differential equations occurring in the relativistic dynamics of dissipative fluids / Matthias Sroczinski." Konstanz : KOPS Universität Konstanz, 2019. http://d-nb.info/1184795460/34.

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5

Abuhamdia, Tariq Maysarah. "Wavelets Based on Second Order Linear Time Invariant Systems, Theory and Applications." Diss., Virginia Tech, 2017. http://hdl.handle.net/10919/85439.

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This study introduces new families of wavelets. The first is directly derived from the response of Second Order Underdamped Linear-Time-Invariant (SOULTI) systems, while the second is a generalization of the first to the complex domain and is similar to the Laplace transform kernel function. The first takes the acronym of SOULTI wavelet, while the second is named the Laplace wavelet. The most important criteria for a function or signal to be a wavelet is the ability to recover the original signal back from its continuous wavelet transform. It is shown that it is possible to recover back the or

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6

Bruschetta, Mattia. "A variational integrators approach to second order modeling and identification of linear mechanical systems." Doctoral thesis, Università degli studi di Padova, 2011. http://hdl.handle.net/11577/3421654.

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The identication of linear second order models of mechanical systems has been object of intensive research and of several papers in the last decades. In this thesis the interest is focused on mechanical systems which can be described by the classical second order vector model defined by the generalized stiffness K, damping D, and inerzia M. All current identication techniques operate in discrete time. Noisy data obtained by sampling the system must be used to stimate the continuous time physical parameters M;K and D. Since identication operates in discrete time one needs to convert the discre

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7

Mangia, Mauro <1981&gt. "Antipodal random sequences with prescribed second-order statistics: application to Compressive Sensing and UWB system based on DS-CDMA." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2013. http://amsdottorato.unibo.it/5511/1/mangia_mauro_tesi.pdf.

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It is usual to hear a strange short sentence: «Random is better than...». Why is randomness a good solution to a certain engineering problem? There are many possible answers, and all of them are related to the considered topic. In this thesis I will discuss about two crucial topics that take advantage by randomizing some waveforms involved in signals manipulations. In particular, advantages are guaranteed by shaping the second order statistic of antipodal sequences involved in an intermediate signal processing stages. The first topic is in the area of analog-to-digital conversion, and it is n

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8

Mangia, Mauro <1981&gt. "Antipodal random sequences with prescribed second-order statistics: application to Compressive Sensing and UWB system based on DS-CDMA." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2013. http://amsdottorato.unibo.it/5511/.

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It is usual to hear a strange short sentence: «Random is better than...». Why is randomness a good solution to a certain engineering problem? There are many possible answers, and all of them are related to the considered topic. In this thesis I will discuss about two crucial topics that take advantage by randomizing some waveforms involved in signals manipulations. In particular, advantages are guaranteed by shaping the second order statistic of antipodal sequences involved in an intermediate signal processing stages. The first topic is in the area of analog-to-digital conversion, and it is n

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9

Berggren, Magnus. "Wave study Seaflex mooring system : Wave study to illuminate how first and second order wave force transfer to and affects the loading of flexible Seaflex mooring system." Thesis, Umeå universitet, Institutionen för fysik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-148136.

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When constructing a marina, one must consider many factors for calculating the mooring forces transferred to the mooring system of the docks. The forces transferred from waves is of course one of the most important. The wave induced forces may be described in different orders, the first-order wave forces from the frequency domain and the second-order wave forces determined from a wave field of different standing waves acting together. All floating objects are subjected to these wave forces, but for different mooring systems the transferred mooring force may vary. To describe the need for diffe

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10

Gong, Mingliang. "Orientation discrimination in periphery: Surround suppression or crowding?" Miami University / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=miami1430433449.

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11

Rocha, Eugénio Alexandre Miguel. "Uma Abordagem Algébrica à Teoria de Controlo Não Linear." Doctoral thesis, Universidade de Aveiro, 2003. http://hdl.handle.net/10773/21444.

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Doutoramento em Matemática<br>Nesta tese de Doutoramento desenvolve-se principalmente uma abordagem algébrica à teoria de sistemas de controlo não lineares. No entanto, outros tópicos são também estudados. Os tópicos tratados são os seguidamente enunciados: fórmulas para sistemas de controlo sobre álgebras de Lie livres, estabilidade de um sistema de corpos rolantes, algoritmos para aritmética digital, e equações integrais de Fredholm não lineares. No primeiro e principal tópico estudam-se representações para as soluções de sistemas de controlo lineares no controlo. As suas trajetórias

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12

Ghassempour, Aghamolki Hossein. "Phasor Measurement Unit Data-based States and Parameters Estimation in Power System." Scholar Commons, 2016. http://scholarcommons.usf.edu/etd/6505.

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The dissertation research investigates estimating of power system static and dynamic states (e.g. rotor angle, rotor speed, mechanical power, voltage magnitude, voltage phase angle, mechanical reference point) as well as identification of synchronous generator parameters. The research has two focuses: i. Synchronous generator dynamic model states and parameters estimation using real-time PMU data. ii.Integrate PMU data and conventional measurements to carry out static state estimation. The first part of the work focuses on Phasor Measurement Unit (PMU) data-based synchronous generator states a

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13

Okyay, Ahmet. "Sliding Mode Control Algorithm Development For Anti-lock Brake System." Master's thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613568/index.pdf.

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In this thesis, a sliding mode controller employing a new sliding surface for antilock brake system (ABS) is proposed, its stability is proven formally and its performance is compared with existing sliding mode controllers. The new sliding mode controller uses the integral-derivative surface, which includes error, its derivative and its integral, all at the same time. This and the already existing derivative surface, which includes error and its derivative only, are named zerothorder sliding surfaces. Their stability analysis is done using first-order auxiliary surfaces. Auxiliary surfaces equ

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14

Pistone, Paolo. "Sur les épreuves et les types dans la logique du second ordre." Thesis, Aix-Marseille, 2015. http://www.theses.fr/2015AIXM4046.

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Dans cette thèse on s'intéresse aux formes de "circularité" qui apparaissent dans la théorie de la preuve de la logique du second ordre et de son contrepartie constructive, le Système F.Ces "circularités", ou "cercles vicieux" (Poincaré 1900), sont analysées sur la base d'une distinction entre deux points de vue distincts et irréductible (à cause des théorèmes d'incomplétude): le premier ("le pourquoi", Girard 1989) concerne la cohérence et l'Hauptsatz et demande des méthodes infinitaires (i.e. non élémentaires) de preuve. Le deuxième ("le comment", Girard 1989) concerne le contenu computation

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15

Top, Can Baris. "Design Of A Slotted Waveguide Array Antenna And Its Feed System." Master's thesis, METU, 2006. http://etd.lib.metu.edu.tr/upload/3/12607642/index.pdf.

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Slotted waveguide array (SWGA) antennas find application in systems which require planarity, low profile, high power handling capabilities such as radars. In this thesis, a planar, low sidelobe, phased array antenna, capable of electronically beam scanning in E-plane is designed, manufactured and measured. In the design, slot characterization is done with HFSS and by measurements, and mutual coupling between slots are calculated analytically. A MATLAB code is developed for the synthesis of the SWGA antenna. Grating lobe problem in the scanning array, which is caused by the slot positions, is s

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16

Tahoumi, Elias. "New robust control schemes linking linear and sliding mode approaches." Thesis, Ecole centrale de Nantes, 2019. http://www.theses.fr/2019ECDN0056.

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Ce travail de thèse porte sur la conception des lois de commande pour des systèmes non linéaires, incertains et perturbés; ces lois de commande sont basées à la fois sur des approches par mode glissant, et sur des techniques linéaires. Les commandes par mode glissant (notamment d’ordre supérieur) sont connues pour leur robustesse face aux perturbations et incertitudes ainsi que pour leurs performances en terme de précision. Cependant, elles sont énergivores. Le retour d’état linéaire est connu pour être une commande lisse et à faible consommation d’énergie, mais il est très sensible aux pertur

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17

McNeely, Mitchell P. "A Comparison of Fixed- and Variable-Ratio Token Exchange-Production Schedules with Children with Autism Spectrum Disorder." Thesis, University of North Texas, 2018. https://digital.library.unt.edu/ark:/67531/metadc1404526/.

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The token economy is a widely used and versatile motivational system within applied behavior analysis. Moreover, token reinforcement procedures have been shown to be highly effective in the treatment of children with autism spectrum disorder (ASD). In the experimental analysis of behavior, token reinforcement contingencies are conceptualized as three interconnected schedule components: (1) the token-production schedule, (2) the exchange-production schedule, and (3) the token-exchange schedule. Basic work with nonhuman subjects has demonstrated that the exchange-production schedule is the prima

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18

Yan, Xinming. "Development of robust control based on sliding mode for nonlinear uncertain systems." Thesis, Ecole centrale de Nantes, 2016. http://www.theses.fr/2016ECDN0012.

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Le travail de thèse présenté dans ce mémoire s’inscrit dans le cadre du développement de lois de commande pour des systèmes non linéaires incertains, basées sur la théorie des modes glissants. Les méthodes classiques de la commande par modes glissants sont des lois de commande par retour d’état, où la variable de glissement et ses dérivées sont nécessaires. Le premier objectif de cette thèse est de proposer des lois de commande par modes glissants d’ordre supérieur avec une réduction de l’ordre de dérivation de la variable de glissement. Le deuxième objectif est de combiner les nouvelles lois

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19

Frankel, Pierre. "Comportement asymptotique de systèmes dynamiques discrets et continus en Optimisation et EDP : algorithmes de minimisation proximale alternée et dynamique du deuxieme ordre à dissipation évanescente." Thesis, Montpellier 2, 2011. http://www.theses.fr/2011MON20066.

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La première partie de cette thèse (articles I et II) est consacrée à l'étude du comportement asymptotique des solutions d'un système dynamique du second ordre avec dissipation évanescente. Le système dynamique est étudié dans sa version continue et dans sa version discrète via un algorithme.La deuxième partie de cette thèse (articles III à VI) est consacrée à l'étude de plusieurs algorithmes de type proximal. Nous montrons que ces algorithmes convergent vers des solutions de certains problèmes de minimisation. Dans chaque cas, une application est donnée dans le cadre de la décomposition de dom

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20

Ennaoui, Karima. "Computational aspects of infinite automata simulation and closure system related issues." Thesis, Université Clermont Auvergne‎ (2017-2020), 2017. http://www.theses.fr/2017CLFAC031/document.

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La thèse est consacrée à des problématiques d’algorithmique et de complexité sur deux sujets. Le premier sujet s’intéresse à la composition comportementale des services web. Ce problème a été réduit à la simulation d’un automate par le produit fermé d’un ensemble d’automates. La thèse étudie dans sa première partie la complexité de ce problème en considérant deux paramètres : le nombre des instances considéré de chaque service et la présence des états hybrides : état à la fois intermédiaire et final dans un automate. Le second sujet porte sur les systèmes de fermeture et s’intéresse au calcul

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Fadlelmula, Fadlelseed Mohamed Mohieldin. "Probabilistic Modeling Of Failure In Rock Slopes." Master's thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/12608549/index.pdf.

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This study presents the results of probabilistic modeling of plane and wedge types of slope failures, based on the &rdquo<br>Advance First Order Second Moment (AFOSM)&rdquo<br>reliability method. In both of those failure types, two different failure criteria namely, Coulomb linear and Barton Bandis non-linear failure criteria are utilized in the development of the probabilistic models. Due to the iterative nature of the AFOSM method, analyzing spreadsheets have been developed in order to carry out the computations. The developed spreadsheets are called &ldquo<br>Plane Slope Analyzer (PSA)&rd

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22

Stahlhut, Sebastian. "Problèmes aux limites pour les systèmes elliptiques." Thesis, Paris 11, 2014. http://www.theses.fr/2014PA112186.

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Dans cette thèse, nous étudions des problèmes aux limites pour les systèmes elliptiques sous forme divergence avec coefficients complexes dans L^{infty}. Nous prouvons des estimations a priori, discutons de la solvabilité et d'extrapolation de la solvabilité. Nous utilisons une transformation via des équations Cauchy-Riemann généralisées due à P. Auscher, A. Axelsson et A. McIntosh. On peut résoudre les équations Cauchy-Riemann généralisées via la semi-groupe engendré par un opérateur différentiel perturbé d'ordre un de type Dirac. A l'aide du semi-groupe, nous étudions la théorie L^{p} avec u

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23

Kim, Jae-Hak, and Jae-Hak Kim@anu edu au. "Camera Motion Estimation for Multi-Camera Systems." The Australian National University. Research School of Information Sciences and Engineering, 2008. http://thesis.anu.edu.au./public/adt-ANU20081211.011120.

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The estimation of motion of multi-camera systems is one of the most important tasks in computer vision research. Recently, some issues have been raised about general camera models and multi-camera systems. Using many cameras as a single camera is studied [60], and the epipolar geometry constraints of general camera models is theoretically derived. Methods for calibration, including a self-calibration method for general camera models, are studied [78, 62]. Multi-camera systems are an example of practically implementable general camera models and they are widely used in many applications nowaday

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Fernandes, Nelson Mesquita. "Acuidade visual e codificação neural da mosca Chrysomya megacephala." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/76/76131/tde-25032010-161256/.

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Descrevemos os processos de captura, criação e micromanipulação cirúrgica das moscas Chrysomya megacephala. Apresentamos os processos de geração de estímulo e registro da atividade dos dois neurônios H1 localizados na placa lobular de seu cérebro. Um primeiro resultado apresentado refere-se a acuidade de seu sistema visual. Desenvolvemos um procedimento para comparar sua taxa de disparos espontâneos com as respostas do neurônio H1 quando sujeito a estímulos de excitação e inibição. Mostramos que o sistema visual da mosca não está apenas adaptado a detectar grandes fluxos ópticos mas também, é

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Lazrag, Ayadi. "Théorie de contrôle et systèmes dynamiques." Thesis, Nice, 2014. http://www.theses.fr/2014NICE4060/document.

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Cette thèse est divisée en trois parties. Dans la première partie, nous commençons par décrire des résultats très connus en théorie du contrôle géométrique tels que le théorème de Chow-Rashevsky, la condition de rang de Kalman, l'application Entrée-Sortie et le test linéaire. De plus, nous définissons et nous étudions brièvement la contrôlabilité locale au voisinage d'un contrôle de référence au premier et au second ordre. Dans la deuxième partie, nous donnons une preuve élémentaire du lemme de Franks linéaire pour les flots géodésiques qui utilise des techniques basiques de théorie du contrôl

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Antoniades, Savopoulos Anastasia. "Exploring the experiences of mothers after participating in a mother-child interaction intervention, within an HIV context." Diss., Pretoria : [s.n.], 2009. http://upetd.up.ac.za/thesis/available/etd-07082009-084041.

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Costa, Bruno Daniel Ferreira da. "A influência do sistema político e eleitoral e do contexto macroeconómico na participação nas eleições legislativas em Portugal e Espanha (2004 - 2011). Um contributo para o estudo da democracia." Doctoral thesis, Instituto Superior de Ciências Sociais e Políticas, 2015. http://hdl.handle.net/10400.5/8541.

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Tese de Doutoramento em Ciências Sociais, na especialidade de Ciência Política<br>A participação política e eleitoral constitui, atualmente, um dos fatores de aferição da qualidade da Democracia, bem como permite aferir da necessidade de adoção de medidas / políticas que promovam um maior envolvimento dos cidadãos na causa pública. As eleições legislativas são, nos sistemas eleitorais de pendor parlamentar, cruciais para determinar a linha política e, mais concretamente, eleger os nossos representantes nacionais. Observando os diversos estudos realizados no âmbito da participação política ver

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Krumpal, Ivar, and Heiko Rauhut. "Dominieren Bundes- oder Landesparteien die individuellen Landtagswahlentscheidungen in der BRD?" Universitätsbibliothek Leipzig, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-208326.

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Landtagswahlergebnisse in der BRD werden von empirischen Wahlforschern häufig als aktuelle Stimmungsbarometer für die Bundespolitik interpretiert. Bei dieser Interpretation von Landtagswahlen als \"Bundestestwahlen\" wird jedoch häufig vernachlässigt, dass Landtagswahlen überwiegend auch Regionalwahlen sind und landestypischen Dynamiken folgen. Empirische Untersuchungen zu Bestimmungsfaktoren von Landtagswahlverhalten wurden in Deutschland bis dato entweder in Form von qualitativen Einzelfallanalysen oder als Aggregatdatenanalysen der amtlichen Wahlstatistiken durchgeführt. Eine direkte und ve

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29

Bernstein, David. "Entwurf einer fehlerüberwachten Modellreduktion basierend auf Krylov-Unterraumverfahren und Anwendung auf ein strukturmechanisches Modell." Master's thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-151975.

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Die FEM-MKS-Kopplung erfordert Modellordnungsreduktions-Verfahren, die mit kleiner reduzierter Systemdimension das Übertragungsverhalten mechanischer Strukturen abbilden. Rationale Krylov-Unterraum-Verfahren, basierend auf dem Arnoldi-Algorithmen, ermöglichen solche Abbildungen in frei wählbaren, breiten Frequenzbereichen. Ziel ist der Entwurf einer fehlerüberwachten Modelreduktion auf Basis von Krylov-Unterraumverfahren und Anwendung auf ein strukturmechanisches Model. Auf Grundlage der Software MORPACK wird eine Arnoldi-Funktion erster Ordnung um interpolativen Startvektor, Eliminierung der

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Boudjenouia, Fouad. "Restauration d’images avec critères orientés qualité." Thesis, Orléans, 2017. http://www.theses.fr/2017ORLE2031/document.

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Cette thèse concerne la restauration aveugle d’images (formulée comme un problème inverse mal-posé et mal-conditionné), en considérant particulièrement les systèmes SIMO. Dans un premier temps une technique d’identification aveugle de ce système où l’ordre du canal est inconnu (surestimé) est introduite. Nous introduisons d’abord une version simplifiée à coût réduit SCR de la méthode des relations croisées (CR). Ensuite, une version robuste R-SCR basée sur la recherche d’une solution parcimonieuse minimisant la fonction de coût CR est proposée. La restauration d’image est ensuite assurée par u

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Cettour-Janet, Raphael. "Modelling the vibrational response and acoustic radiation of the railway tracks." Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLC040/document.

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Dans un contexte de densification des villes et de leurs réseaux de transport, les gens sont de plus en plus exposés au bruit. Ainsi, le résultat de l'étude d'impact vibro-acoustique joue un rôle primordial dans l'expansion du réseau ferroviaire. L'une des principales sources est le bruit de roulement : La rugosité de la surface de la roue et du rail produit un déplacement imposé sur ces derniers. Ce déplacement entraine une réponse vibratoire des roues et de la voie ferrée et leurs rayonnements acoustiques. Cette thèse propose une amélioration de la modélisation vibro-acoustique de la voie fe

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Rosen, Gail L. "Signal processing for biologically-inspired gradient source localization and DNA sequence analysis." Diss., Available online, Georgia Institute of Technology, 2006, 2006. http://etd.gatech.edu/theses/available/etd-07102006-123527/.

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Thesis (Ph. D.)--Electrical and Computer Engineering, Georgia Institute of Technology, 2007.<br>Oliver Brand, Committee Member ; James H. McClellan, Committee Member ; Paul Hasler, Committee Chair ; Mark T. Smith, Committee Member ; David Anderson, Committee Member.

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Larsson, Clarence. "Identity through the other : Canadian adventure romance for adolescents." Doctoral thesis, Umeå (Sweden) : Umeå university, 1996. http://catalogue.bnf.fr/ark:/12148/cb37048035r.

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Chung, Po-Ching, and 鍾博欽. "PID Fine Tuning Method Based on Experimental Design For the Second Order System with Time Delay." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/78464674816542771989.

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碩士<br>國立屏東科技大學<br>機械工程系<br>92<br>The purpose of this study is to construct two processes of PI/PID fine tuning adjustment which based on experimental method as the target of this study is Second Order System with Time delay which is commonly applied in machinery and indexed by IAE, ISE, ITSE, and ITAE system. Therefore, a series of different experimentations is operated in the first process of fine tuning adjustment and calibrated by simple square design. As for the second process of fine tuning adjustment, a simple square design is operated to figure the formula out and to search the experime

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Mu, Bingxian. "Consensus analysis of networked multi-agent systems with second-order dynamics and Euler-Lagrange dynamics." Thesis, 2013. http://hdl.handle.net/1828/4645.

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Consensus is a central issue in designing multi-agent systems (MASs). How to design control protocols under certain communication topologies is the key for solving consensus problems. This thesis is focusing on investigating the consensus protocols under different scenarios: (1) The second-order system dynamics with Markov time delays; (2) The Euler-Lagrange dynamics with uniform and nonuniform sampling strategies and the event-based control strategy. Chapter 2 is focused on the consensus problem of the multi-agent systems with random delays governed by a Markov chain. For second-order

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Tsai, Min-Jay, and 蔡名杰. "Use of the A-Locus Limit-Cycle Theory to Identify Second-Order plus Delay Models." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/89016664877983800979.

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碩士<br>國立成功大學<br>化學工程學系碩博士班<br>91<br>Identification techniques based on relay-induced limit cycles have found wide applications in the industry to acquire information about process dynamics. Kaya and Atherton (2001) proposed the use of the A-locus limit-cycle theory to identify second-order plus delay models (without zeros). However, their method is not feasible because slight variations in the output measurement could cause erroneous identification results. This thesis presents two identification methods based on the A-locus limit-cycle theory, which are superior to Kaya’s method in applicat

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WU, EN-YOU, and 吳恩佑. "Modified second order sliding mode control of fan system and magnetic system." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/01412101133752661067.

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Lu, Jiing-Jaw, and 盧璟照. "Adaptive Sliding Mode Controller Design for a Second-Order Dynamic System." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/81559649982448901874.

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碩士<br>國立交通大學<br>電機學院碩士在職專班電機與控制組<br>98<br>This thesis proposes an adaptive sliding mode controller design to deal with the limitation of traditional sliding mode control, which requires the upper bound of unknown parameters. Most importantly, with the adaptive law the unknown parameters can be estimated in real time. There are three approaches developed for three cases with different system parameters and disturbances. These approaches can solve the high gain problem, reject the external disturbances, and reduce the estimation error. Furthermore, three design steps are also included to set an

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Chen, Guan-Wei, and 陳冠瑋. "Second order sliding mode control of a magnetic ball suspension system." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/22735911007264698083.

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碩士<br>雲林科技大學<br>電機工程系碩士班<br>98<br>The requirements of high speed and high accuracy demand become the recent trend in industry development. Therefore, servo position systems of high accuracy and excellent tracking performance play important roles. The magnetic ball suspension system uses the magnetic force to maintain the magnetic ball in the air. It avoids the contact friction for the machine elements. However, this system is a nonlinear and open loop unstable system. In classical control, the controller is designed by using the operating point linearization method. It is suitable in the small

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Fan, Kuo-Jheng, and 范國徵. "Second order sliding mode control for a fan system based on MCU." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/02354872087911225743.

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碩士<br>國立雲林科技大學<br>電機工程系<br>103<br>The Fan wind speed control system (FS) is a self-made experimental system that is designed to improve the efficiency of the air-condition system in buildings by control methods. According to Fan’s Law, a fan operating at 50% output wind volume requires only 12.5% of the power required at 100% output wind volume. In other words, under the condition of same air speed the system with air speed controller has better efficiency through improving the control ability. FS is a nonlinear system which has many uncertainties and interference around the system. In classic

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Zhi-WeiXu and 許智韋. "Balance Control of an Inverted Pendulum System Using Second-Order Sliding Mode Control." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/49836043216196459420.

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碩士<br>國立成功大學<br>工程科學系<br>102<br>The inverted pendulum system is a simple, fast, unstable and nonlinear system. It is commonly used as a testbed for studying many advanced control theory. This thesis considers the problems of controlling an inverted pendulum actuated by a linear motor. Different control schemes are used to design the stabilizing controllers. In this thesis, the Euler-Lagrange method is used to derive the dynamic model of the inverted pendulum system. The LQR (Linear Quadratic Regulator) control law, first-order sliding mode control law and second order sliding mode control law

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Du, Sheng-Bin, and 杜聖斌. "The Stabilization of Second Ordered Time Delay System and the Design of Robust PID Controller." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/01623529010245569678.

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碩士<br>義守大學<br>生物技術與化學工程研究所<br>101<br>This thesis deals with the stabilization using PID controllers of second-order time-delay unstable systems and the design of maximum stability PID controllers for time=delay processes. In general, the closed-loop characteristic function of a PID-controlled time-delay process can be written as f(s)=A(s)+(ki+kps+kds^2)B(s)e^-hs, where A(s) and B(s) are polynomials in s and kp, ki, kd, are the proportional, integral, and derivative gains of a PID controller. The stabilizing PID controller parameter set Ks(sigma) is defined to be Ks(sigma)={(kp,ki,kd) belon

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Lo, Min-Yu, and 羅敏玉. "Numerical Strategies for Solving Large Continuous-time Optimal Control System with Second-order Dynamics." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/63836793531094212555.

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碩士<br>國立交通大學<br>應用數學系<br>90<br>Large vibrating structures modeled by finite element methods are usually discretrized into second order dynamical systems of matrix equations. Solutions of such systems can be formulated as solving large sparse Hamiltonian eigenproblem. QR-type or Schur method suffer from fill-in's and are not practical for large problem. Subspace approaches usually require shift and invert to accelerate the convergence rate. It is, however, difficult in practice to determine the shift values. In this thesis we propose to use the divide-and-conquer homotopy-determinant algorithm

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Brigg, John Robert. "An investigation of a reactor system for two second order consecutive homogeneous liquid reactions." Thesis, 2015. http://hdl.handle.net/10539/16445.

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Chiu, Yu-Chun, and 邱禹鈞. "Polar Plot and Response Curve Drawing System for First, Second and Third Order Processes." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/6dh3gh.

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碩士<br>國立臺北科技大學<br>化學工程研究所<br>98<br>In the process control, controller parameters tuning plays an important role in maintaining the stability of the system. However, most of the parameter tuning method was selected based on operator''s personal experience; But rare to discuss the rationality of system stability of application on the controller parameters. In fact, system response and system stability cannot be coexisting perfectly at the same time. We may have to make sacrifice for the system response to claim a higher stability. This research expects to develop not only expedient but

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Mo, Tzung-Yang, and 莫宗揚. "A Second-order observation on The 1992 Consensus：A perspective of Luhmann’s Social System Theory." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/96903522248386892635.

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碩士<br>國立暨南國際大學<br>公共行政與政策學系<br>97<br>The Koo-Wang Meeting in 1993 was the first public contact between Taiwan and China since the civil war and facilitated non-political negotiations and agreements. The prelude to this Meeting took place in Hong Kong in 1992, at which an agreement was reached that the Chinese and Taiwanese governments would put aside political disputes in order for administrative meetings to take place. The agreement reached in this event was later phrased as the “1992 Consensus,” which does not yet have a consistent definition as of today, and is interpreted by the industrial

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Shieh, Ming-hong, and 謝旻宏. "PI/PID Fine Tuning Method Based on Experimental Design for the First Order System with Time Delay." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/39360317713430666855.

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碩士<br>國立屏東科技大學<br>機械工程系<br>92<br>The PID controllers are wildly applied in industry for its mature technology and easy to use. Mathematical measures are utilized in most controllers’ design; however, practical methods are more eagerly needed in factories. Based on experimental Design three PID controllers’ processes are provided in this research. These three experimental methods are Response Surface Methodology, Steepest Descent Method, and Fractional Factorial Design. There are steps of Response Surface Methodology search: through systemic experiment to improve statistics, so as to attain the

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Chang, Chi-Hung, and 張啟鴻. "PID Fine Tuning Method Based on Non-dimensional Parameters For the First Order System with Time Delay." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/62173495720368261990.

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碩士<br>國立屏東科技大學<br>機械工程系<br>92<br>The main idea of this article is with Non-dimensional Paramters, to develop a series of PI Fine Turing Procedure based on Experiment Design. First, it regulates systematic and efficient Experiment Design step by step, practices controlling parameters that might be researched due to human and environmental mistakes while doing fine tuning and then tests if it works out within false system models by partly fine turning methods. In this article, it focuses on First order system with time delay and according to PI Controller, it designs four fine turning methods in

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Chen, Ching-Yung, and 陳慶永. "BLIND MIMO SYSTEM IDENTIFICATION, SOURCE SEPARATION AND TIME DELAY ESTIMATION USING HIGHER-ORDER STATISTICS BASED INVERSE FILTER CRITERIA." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/90247215980028631055.

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博士<br>國立清華大學<br>電機工程學系<br>91<br>Blind identification (BID) of a multiple-input multiple-output (MIMO) linear time-invariant system is a problem of estimating the unknown system with only a set of non-Gaussian vector output measurements of the system. Most of the existing BID algorithms are developed under the noise-free assumption and require stringent conditions on the unknown MIMO system as well as on the spectra of the driving inputs of the system. With noise effects taken into account, this thesis studies blind single-input multiple-output (SIMO)

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Smith, Abraham David. "Integrability of Second-Order Partial Differential Equations and the Geometry of GL(2)-Structures." Diss., 2009. http://hdl.handle.net/10161/1179.

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<p>A GL(2,R)-structure on a smooth manifold of dimension n+1 corresponds to a distribution of non-degenerate rational normal cones over the manifold. Such a structure is called k-integrable if there exist many foliations by submanifolds of dimension k whose tangent spaces are spanned by vectors in the cones.</p><p>This structure was first studied by Bryant for n=3 and k=2. The work included here (n=4 and k=2,3) was suggested by Ferapontov, et al., who showed that the cases (n=4,k=2) and (n=4, k=3) can arise from integrability of second-order PDEs via hydrodynamic reductions.</p><p>Cartan--Ka

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