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Dissertations / Theses on the topic 'Time-delay'

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Published: 4 June 2021
Last updated: 25 July 2025

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1

Redmond, D. F. "Delay time analysis in maintenance." Thesis, University of Salford, 1997. http://usir.salford.ac.uk/2157/.

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The thesis develops the application of delay time analysis to the area of mathematical modelling of planned maintenance and inspection of industrial systems. Chapter 1 gives an introduction to the history and techniques in use of maintenance modelling and surveys appropriate literature in the field. A section is devoted to papers published on delay time analysis. Chapter 2 introduces and develops mathematical models for modelling the reliability, maintenance and inspection of repairable systems. Chapter 3 gives an account of parameter estimation and model updating techniques in the light of su
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2

Cheang, Seng. "Synchronisation phenomena with time delay." Thesis, Imperial College London, 2014. http://hdl.handle.net/10044/1/24923.

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I study a simple model of synchronisation proposed by Jensen (2008). The relevant degrees of freedom are expected to be strictly increasing functions of time, such as the total angle swept out by an oscillator. The model is rooted in Winfree's mean-field model for spontaneous synchronisation; some of Winfree's basic assumptions, such as identical or nearly identical dynamics and identical couplings, are therefore retained. I investigated the behaviour of the present model with respect to synchronisation without and in the presence of time delay. The mathematical treatment focuses on characteri
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3

Hu, Guangdi. "Robustness measures for linear time-invariant time-delay systems." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/NQ63641.pdf.

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4

Lombardi, Warody. "Constrained control for time-delay systems." Phd thesis, Supélec, 2011. http://tel.archives-ouvertes.fr/tel-00631507.

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The main interest of the present thesis is the constrained control of time-delay system, more specifically taking into consideration the discretization problem (due to, for example, a communication network) and the presence of constraints in the system's trajectories and control inputs. The effects of data-sampling and modeling problem are studied in detail, where an uncertainty is added into the system due to additional effect of the discretization and delay. The delay variation with respect to the sampling instants is characterized by a polytopic supra-approximation of the discretization/del
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5

Dooley, Saul. "Subsample time delay and Doppler estimation." Thesis, University of Strathclyde, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.248768.

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6

Cui, X. "Delay time modelling and software development." Thesis, University of Salford, 2002. http://usir.salford.ac.uk/2159/.

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Delay time modelling (DTM) is the process to establish the mathematical model based on the delay time concept and then to use it for improving plant maintenance management. The delay time model can be divided into a single component model (component-tracking model) or a complex system model (pooled-components model). DTM has been proved to be a methodology readily embraced by engineers for modelling maintenance decisions. The application and research of delay time modelling has come to a stage where a semi-automated tool can be developed. In this thesis, the research on the software developmen
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7

Schoen, Gerhard Manfred. "Stability and stabilization of time-delay systems." Online version, 1995. http://bibpurl.oclc.org/web/33909.

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8

Lehman, Bradley M. "Vibrational control of nonlinear time delay systems." Diss., Georgia Institute of Technology, 1992. http://hdl.handle.net/1853/14718.

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9

Haurani, Ammar. "Robust control of uncertain time-delay systems." Thesis, McGill University, 2004. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=84257.

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This work addresses the problem of robust stabilization and robust Hinfinity control of uncertain time-delay systems. The time-delays are considered to be present in the states and/or the outputs, and the uncertainties in the system representation are of the parametric norm-bounded type. Both cases of actuators, with and without saturation are studied, and the state-feedback and output-feedback control designs are presented. Two methods for analysis and synthesis of controllers are used: The first is based on the transfer function, and the second on the use of functionals.<br>In the con
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10

Corvi, Andrea P. "Subjective Time Perception Predicts Delay of Gratification." Case Western Reserve University School of Graduate Studies / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=case1291765358.

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11

Pham, Viet Thanh. "Memristor-based and time-delay nonlinear circuits." Doctoral thesis, Università di Catania, 2013. http://hdl.handle.net/10761/1306.

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The pioneering works of Prof. Leon O. Chua constructing electrical circuit (named Chua s circuit) which can display chaotic behaviors open a period with fruitful researches about nonlinear circuits. A considerable amount of different nonlinear circuits has been introduced and their numerous applications have developed instantaneously. Complex dynamical characteristics of nonlinear circuits are used to model complex systems, to generate random numbers or to secure informations. There are three nonlinear systems which have received much attention recently: time delay system, Cellular Neural Netw
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12

Yuksel, Can Kutlu. "Simultaneous Time-Delay Compensation and Periodic Control." Electronic Thesis or Diss., université Paris-Saclay, 2025. http://www.theses.fr/2025UPAST024.

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Il existe différents scénarios dans lesquels on exige qu'un système fonctionne de manière périodique et, par conséquent, un besoin durable d'avoir un contrôleur capable de répondre à cette demande. On peut dire que l'approche la plus courante pour construire ces contrôleurs est le paradigme de conception du contrôle répétitif. Néanmoins, si les systèmes considérés souffrent de retards temporels et/ou de types particuliers de signaux périodiques, les directives du paradigme du contrôle répétitif peuvent être trop strictes et tirées par les cheveux pour être suivies. La thèse cherche des moyens
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13

Du, Baozhu, and 杜宝珠. "Stability analysis and controller synthesis of continous-time linear time-delay systems." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2010. http://hub.hku.hk/bib/B44765186.

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14

Olsson, Mattias. "Contributions to Frequency Offset and Time Delay Estimation." Licentiate thesis, Linköping : Linköping University, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-6436.

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15

Boudreau, Daniel. "Joint time delay estimation and adaptive filtering techniques." Thesis, McGill University, 1990. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=70177.

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This thesis studies adaptive filters for the case in which the main input signal is not synchronized with the reference signal. The asynchrony is modelled by a time-varying delay. This delay has to be estimated and compensated. This is accomplished by designing and investigating joint delay estimation and adaptive filtering algorithms. First, joint maximum likelihood estimator is derived for input Gaussian signals. It is used to define a readily implementable joint estimator, composed of an adaptive delay element and an adaptive filter. Next, two estimation criteria are investigated with that
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16

嚴利興 and Li-hing Yim. "Some stability results for time-delay control problems." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2000. http://hub.hku.hk/bib/B31225482.

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17

Choi, K. M. "Semi-Markov and delay time models of maintenance." Thesis, University of Salford, 1997. http://usir.salford.ac.uk/2158/.

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This thesis is concerned with modelling inspection policies of facilities which Qraduallv deteriorate in time. The context of inspection policies lends itself readily to probabilistic modelling. Indeed, many of the published theoretical models to be found in the literature adopt a Markov approach, where states are usually 'operating', 'operating but fault present', and 'failed'. However, most of these models fail to discuss the 'fit' of the model to data,a nd virtually no exampleso f actual applications or case-studiesa re to be found. hi a series of recent papers dating from 1984, a robust ap
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18

Tobenkin, Mark M. "Nonlinear filtering for narrow-band time delay estimation." Thesis, Massachusetts Institute of Technology, 2009. http://hdl.handle.net/1721.1/53166.

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Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2009.<br>Includes bibliographical references (p. 101-103).<br>This thesis presents a method for improving passive acoustic tracking. A large family of acoustic tracking systems combine estimates of the time difference of arrival (TDoA) between pairs of spatially separated sensors - this work improves those estimates by independently tracking each TDoA using a Bayesian filter. This tracking is particularly useful for overcoming spatial aliasing, which results from tracking narrowband,
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19

Wetzel, John Adams. "Implementation of time delay control to magnetic bearings." Thesis, Massachusetts Institute of Technology, 1997. http://hdl.handle.net/1721.1/42699.

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20

Yim, Li-hing. "Some stability results for time-delay control problems." Hong Kong : University of Hong Kong, 2000. http://sunzi.lib.hku.hk/hkuto/record.jsp?B22926094.

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21

McDaniel, Austin James. "The Effects of Time Delay on Noisy Systems." Diss., The University of Arizona, 2015. http://hdl.handle.net/10150/556867.

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We consider a general stochastic differential delay equation (SDDE) with multiplicative colored noise. We study the limit as the time delays and the correlation times of the noises go to zero at the same rate. First, we derive the limiting equation for the equation obtained by Taylor expanding the SDDE to first order in the time delays. The limiting equation contains a noise-induced drift term that depends on the ratios of the time delays to the correlation times of the noises. We prove that, under appropriate assumptions, the solution of the equation obtained by the Taylor expansion converges
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22

Bai, Yuqiong. "ANALYSIS OF AIRCRAFT ARRIVAL DELAY AND AIRPORT ON-TIME PERFORMANCE." Master's thesis, University of Central Florida, 2006. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/2573.

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In this research, statistical models of airport delay and single flight arrival delay were developed. The models use the Airline On-Time Performance Data from the Federal Aviation Administration (FAA) and the Surface Airways Weather Data from the National Climatic Data Center (NCDC). Multivariate regression, ANOVA, neural networks and logistic regression were used to detect the pattern of airport delay, aircraft arrival delay and schedule performance. These models are then integrated in the form of a system for aircraft delay analysis and airport delay assessment. The assessment of an airport&
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23

Zinck, Melissa M. "A COMPARISON STUDY OF CONSTANT TIME DELAY AND PROGRESSIVE TIME DELAY IN THE ACQUISITION OF ACADEMIC CONTENT FOR STUDENTS WITH INTELLECTUAL DISABILITIES." UKnowledge, 2018. https://uknowledge.uky.edu/edsrc_etds/59.

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Constant time delay (CTD) and progressive time delay (PTD) are both evidence-based practices used to teach students with intellectual disability (ID). The prompt delay strategies have been used for instruction with academics, social, vocational, and communication skills. There is limited research regarding the differential effectiveness of the time delay variations for teaching academic content to students with ID. The present study compares the effects of CTD and PTD in the acquisition of academic content with four students with ID. An adapted alternating treatments design was used to compare
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24

Cruz, David F. "Repair cycle time reduction at Naval Aviation Depots via reduced Logistics Delay Time." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1997. http://handle.dtic.mil/100.2/ADA342536.

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Thesis (M.S. in Management) Naval Postgraduate School, December 1997.<br>"December 1997." Thesis advisor(s): Keebom Kang, Donald Eaton. Includes bibliographical references (p. 87). Also available online.
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25

Pietarila, Kristel M. Fales Roger. "Developing and automating time delay system stability analysis of dynamic systems using the Matrix Lambert W (MLW) function method." Diss., Columbia, Mo. : University of Missouri--Columbia, 2009. http://hdl.handle.net/10355/6180.

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Title from PDF of title page (University of Missouri--Columbia, viewed on Feb 16, 2010). The entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract appears in the public.pdf file. Dissertation advisor: Dr. Roger Fales. Vita. Includes bibliographical references.
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26

Alwan, Mohamad. "Stability of Hybrid Singularly Perturbed Systems with Time Delay." Thesis, University of Waterloo, 2006. http://hdl.handle.net/10012/2934.

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Hybrid singularly perturbed systems (SPSs) with time delay are considered and exponential stability of these systems is investigated. This work mainly covers switched and impulsive switched delay SPSs . Multiple Lyapunov functions technique as a tool is applied to these systems. Dwell and average dwell time approaches are used to organize the switching between subsystems (modes) so that the hybrid system is stable. Systems with all stable modes are first discussed and, after developing lemmas to ensure existence of growth rates of unstable modes, these systems are then extended to in
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27

Imaida, Takashi. "STUDIES ON BILATERAL CONTROL OF TELEOPERATOR UNDER TIME DELAY." 京都大学 (Kyoto University), 2015. http://hdl.handle.net/2433/200503.

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28

Mitchell, Richard James. "Multi-microprocessor control of processes with pure time delay." Thesis, University of Reading, 1987. http://centaur.reading.ac.uk/18826/.

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29

Han, Xiaoran. "Output feedback sliding mode control for time delay systems." Thesis, University of Kent, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.594201.

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This Thesis considers Sliding Mode Control (SMC) for linear systems subjected to uncertainties and delays using output feedback. Delay is a natural phenomenon in many practical systems, the effect of delay can be the potential cause -of performance deterioration or even instability. To achieve better control performance, SMC with output feedback is considered for its inherent robustness feature and practicality for implementation. In highlighting the main results, firstly a novel output feedback SMC design is presented which formulates the problem into Linear Matrix Inequalities (LMIs). The ef
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30

Wong, Man-kwun, and 黃文冠. "Some sensitivity results for time-delay optimal control problems." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2000. http://hub.hku.hk/bib/B31223655.

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31

Wang, W. "Modelling condition monitoring inspection using the delay-time concept." Thesis, University of Salford, 1992. http://usir.salford.ac.uk/2156/.

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In the literature on inspection modelling, the failure distribution traditionally plays a fundamental role in model construction in that it is assumed that system failures occur instantly at random time points from new with a known pdf. of time to failure. Numerous models have been built on this basis. However, Professor Christer challenged this traditional idea and proposed the concept of delay time. The idea, which is an essential part of most engineers' experience, assumes that defects do not just appear as failures, but are present for a while before becoming sufficiently obvious to be not
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32

Chan, Lipton. "Time-series prediction using evolutionary lateral-delay neural networks." Thesis, University of Glasgow, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.272850.

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33

Ottensmeyer, Mark Peter. "Telerobotic surgery : feedback time delay effects on task assignment." Thesis, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/10972.

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34

Nelson, Tom. "ALAMOUTI SPACE-TIME CODING FOR QPSK WITH DELAY DIFFERENTIAL." International Foundation for Telemetering, 2003. http://hdl.handle.net/10150/607483.

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International Telemetering Conference Proceedings / October 20-23, 2003 / Riviera Hotel and Convention Center, Las Vegas, Nevada<br>Space-time coding (STC) for QPSK where the transmitted signals are received with the same delay is well known. This paper examines the case where the transmitted signals are received with a nonnegligible delay differential when the Alamouti 2x1 STC is used. Such a differential can be caused by a large spacing of the transmit antennas. In this paper, an expression for the received signal with a delay differential is derived and a decoding algorithm for that signal
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35

Wang, Rong-Jyue, and 王榮爵. "Robust Stability Analysis and Control Design in Non-Time-Delay and Time-Delay Systems." Thesis, 1995. http://ndltd.ncl.edu.tw/handle/7755ut.

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博士<br>國立中央大學<br>電機工程研究所<br>83<br>This dissertation presents a thoroughgoing study on the stability analysis and controller design of systems with time- delays and perturbations. Since time-delays and perturbations are frequently a source of instability and are often encountered in various engineering systems, stability analysis and stabilization for the time-delay uncertain systems are therefore extremely improtant. Based on Lyapunov stability theorem, the solution of Riccati equation, and
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36

Wu, Day-Ru, and 吳岱儒. "Analysis of Time-Delay Systems." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/42854664257244592039.

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碩士<br>國立中央大學<br>電機工程研究所<br>88<br>In this thesis, stability of linear time-invariant time-delay systems is considered. An imaginary axis intersection sequence of delay times is decided. Then some necessary and sufficient conditions for stability are derived. Therefore, the maximum delay time interval is obtained. In addition, the multiple delay time intervals allowed may be determined. And using the scheme proposed in this thesis, some examples reveal that time-delay systems stability is not necessary that the allowable delay time must vary from zero. In the sequel, stability of linear ti
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37

許博森. "Time-Frequency Distribution Method for Time Delay Estimation." Thesis, 1993. http://ndltd.ncl.edu.tw/handle/52171881108671765353.

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碩士<br>國立中山大學<br>電機工程研究所<br>81<br>In this thesis, a new method different from the conventional time domain methods is proposed for time delay estimation. The new method is based on Wigner distribution (WD) with direct delay estimation formula. By the WD, we can obtain the repesentation of signal in both the time and frequency domains. 　　To demonstrate the performance of the presented method, the colored Gaussian signal and the colored Gaussian noise are considered where the additive noises in both sensors are assumed to be uncorrelated with each other. From the simulation results for stationary
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38

Wu, Tian-Hong, and 吳天弘. "Delay-dependent controller design of uncertain singular time-delay systems." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/84049804126273262044.

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碩士<br>國立高雄應用科技大學<br>電機工程系博碩士班<br>96<br>The problems of delay-dependent robust stabilization and robust H∞ performance of uncertain singular systems with norm-bounded parametric uncertainty are studied in this thesis. Firstly, a delay-dependent stability criterion in terms of linear matrix inequalities (LMIs) for the nominal singular time-delay systems is established, which guarantees the system to be regular, impulse free and asymptotically stable. Secondly, based on this criterion, we design state feedback controllers and observered-based state feedback controllers respectively for uncertain
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39

Liu, Pin-Lin, and 劉柄麟. "Robust Stability for Parameterically Perturbed Time-delay Systems with Delay-Dependence." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/38151420074751136670.

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博士<br>國立彰化師範大學<br>工業教育學系<br>89<br>In this dissertation, a complete research on the analysis of several types of time-delay dynamic systems is explored. Our results can be classified into five major categories. First, for the delay-dependent stability analysis, sliding model control design, large-scale system and neutral systems, to guarantee the asymptotic stability will be presented. Second, several kinds of controllers for uncertain saturating actuator systems are considered. This includes the stabilization of input constrained systems, stabilization of classes of singularly perturbed and bi
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40

Liu, Bing-Lin, and 劉枯麟. "Robust stability for linear uncertain time-delay systems with delay-dependence." Thesis, 1991. http://ndltd.ncl.edu.tw/handle/19648893164899919197.

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41

林韋男. "Robust Stability for Uncertain Time Delay-Actuator Saturation with Delay-dependence." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/52636752713716686939.

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碩士<br>建國科技大學<br>電機工程系暨研究所<br>97<br>This paper aims to explore robust stability analysis of time delay system. Robust stability for time delay system has been attracting the attention of many researchers. Time delay is frequently encountered in various control systems, and the existence of the delay is a source of instability. Therefore, the stability problem of time delay systems has been one of the most popular research areas in control systems over the years. Time delay system is often occurring in the transmission of information or material between different parts of a system. Transportatio
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42

Lin, Geng Sian, and 林耕賢. "Time Delay Compensation on Real-time Pseudo-dynamic Testing." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/nzvndy.

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碩士<br>國立臺北科技大學<br>土木與防災研究所<br>98<br>In a real-time pseudo-dynamic test, time-delay occurring in the process of driving the actuator results in the difference between the measured structural recovering force in reality and the ideal one. It causes erroneous results in the test. Therefore, the study aims to develop a time-delay compensation method which can correct the error due to the time-delay. First, a delay differential equation（DDE）is used to represent the equation of motion of a system including time-delay. Based on the characteristic equation associated with the DDE, we can analytically
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43

Berman, Rachel Elisabeth. "Does time perception underlie delay discounting?" 2013. http://hdl.handle.net/2152/21628.

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Delay discounting, the belief that rewards decline in value over time, is a phenomenon observed in several clinical disorders, including Attention Deficit / Hyperactivity Disorder (ADHD), substance abuse disorders, and other impulse control disorders. Delay discounting behavior is characterized by a tendency to choose smaller, more immediate rewards over larger, more delayed rewards. This tendency has been associated with behavioral impulsivity and inability to delay gratification observed in the aforementioned clinical disorders. It has been suggested that time perception may be a salient fea
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44

Wei-Chuan, Huang, and 黃偉筌. "Robust Stabilization for Time-delay Systems." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/12082605463955173366.

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碩士<br>建國科技大學<br>電機工程所<br>94<br>Abstract Some discussions have been made with the same examples that appear in many recent papers via illustrative examples. A neutral system with distributed time-delay is asymptotically stable. In this thesis, The control system applied the properties of the Lyapunov equation, Lyapunov -Krasovskiiand, linear matrix inequality(LMI), Newton-Leibniz formula and model transformation. These properties are employed to investigate the robust stabilization conditions. This thesis shows a maximum delay bound is derived for the robust stabilization of time-delay control
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45

LAI, JING-XUN, and 賴菁勳. "Time delay system adaptive control design." Thesis, 1986. http://ndltd.ncl.edu.tw/handle/61205535919000690295.

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46

Wang, Jung, and 王融. "Degenerate Semilinear Equation with Time Delay." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/42448687518223937302.

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碩士<br>大同大學<br>應用數學學系(所)<br>96<br>Let $q$ be a nonnegative real number, $\tau $ be a positive number, $\triangle $ be the $n$ dimensional Laplacian operator, $\Omega $ be bounded in $\mathbb{R}^n$ with $\Omega $ is either an $n$-dimensional ball or a square. This paper studies the existence and non-existence of the solution $u(t,x)$ of the parabolic problem: \[ \begin{array}{c} \|x\|^{q}u_{t}(t,x)-K(\Delta u(t,x))=f(u(t-\tau,x)) \mbox{\ for \ } t>0, x\in \Omega, \\ u(t,x)=\eta(t,x) \mbox{\ for\ } -\tau \leq t \leq 0, x\in \Omega, \\ u(t,x)=0 \mbox{ \ on \ } \partial \Omega, \\ \end{array} \]
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47

Chiang, Tai-Li, and 江泰利. "Robust control of time-delay system." Thesis, 1997. http://ndltd.ncl.edu.tw/handle/03805052061886404633.

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碩士<br>國立中央大學<br>電機工程學系<br>85<br>In this paper, we will deal with the time-delay systems with parametric perturbation. In the practical system, because of varying of the enviroment,the parameters of the systems have some uncertainties. And another problem weconcered is time-delay problem. In the practical system, states transmissionneed times, so time-delay problem would happen. Because of the above reasons,we will discuss the robust stability of the time-delay systems in this paper. The
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48

Huang, Gwo-Chin, and 黃國欽. "A Time-delay enhancement to PID Controller." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/50766170862181524307.

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碩士<br>逢甲大學<br>自動控制工程研究所<br>84<br>A tuning method of a time-delay enhanced PID controller (PIDl) for the first-order-plus-dead-time model is presented in the study. Optimum PIDl controller tuning data based on the model and minimum IAE criterion were obtain via Powell searching technique, and these data were then empirically correlated into several regression equations by a least-square method. Thus, PIDl controller tuning based on the model can easilly be obtained by the calculation of
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49

WU, JIE-GIAN, and 吳介騫. "Time delay estimation using orthogonal functions expansion." Thesis, 1986. http://ndltd.ncl.edu.tw/handle/81810630189402776480.

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50

"Singular external control problem with time delay." Chinese University of Hong Kong, 1986. http://library.cuhk.edu.hk/record=b5885694.

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