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Dissertations / Theses on the topic 'Time switch'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

Lugagne, Jean-Baptiste. "Real-time control of a genetic toggle switch." Thesis, Sorbonne Paris Cité, 2016. http://www.theses.fr/2016USPCC249/document.

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Les progrès récents de la microfluidique, la biologie synthétique, la microscopie automatisée rendent aujourd'hui possible le contrôle externe de l'expression des gènes en temps réel. Parmi les défis que devra relever le domaine du contrôle externe et temps-réel de l'expression des gènes, se trouve la possibilité de contrôler des réseaux de régulation génique aux dynamiques complexes et multi-stables et le contrôle de multiples gènes en parallèle. Pour faire avancer le domaine dans cette direction nous avons étudié la contrôlabilité d'un réseau bistable composé de deux gènes, appelé genetic to

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Switzer, Earl R., and Erwin H. Straehley. "Edwards Digital Switch System Overview." International Foundation for Telemetering, 1992. http://hdl.handle.net/10150/611928.

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International Telemetering Conference Proceedings / October 26-29, 1992 / Town and Country Hotel and Convention Center, San Diego, California<br>The Edwards Digital Switch (EDS) is a digital communication system that provides advanced voice networking capabilities to the Edwards Test Range. The EDS is a member of a new family of all-digital switching systems that internally handle data in digital form. To accommodate analog voice and data circuits, conversions between analog and digital formats occur at the system interfaces. The EDS consists of six groups of configuration items: System-level

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3

Gupta, Munish. "Finite Difference Time Domain Analysis of MEMS Transfer Switch." University of Cincinnati / OhioLINK, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1132343500.

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4

Pleszko, Aleksander Lechosław. "Multiplatform management of a hard real-time ethernet switch." Master's thesis, Universidade de Aveiro, 2012. http://hdl.handle.net/10773/10344.

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Mestrado em Engenharia Electrónica e Telecomunicações<br>Ao longo dos últimos anos, o agora onipresente protocolo Ethernet, embora não dotado de mecanismos eficazes de gestão de QoS, foi ganhando uma grande aceitação no campo das comunicações industriais. Esta crescente aceitação deveu-se, em grande parte, a novos protocolos, baseados em Ethernet (por exemplo, Profinet, Ethernet Industrial, etc), capazes de fornecer comunicações com garantias deterministas ou de tempo-real. O comutador Ethernet Hartes (Hard Real-Time Ethernet Switch), foi desenvolvido para disponibilizar uma infra-estrutura d

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Allard, Yannick. "Dedicated Hardware Context-Switch Services for Real-Time Multiprocessor Systems." Doctoral thesis, Universite Libre de Bruxelles, 2011. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/260377.

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Computers are widely present in our daily life and are used in critical applic-ations like cars, planes, pacemakers. Those real-time systems are nowadaysbased on processors which have an increasing complexity and have specifichardware services designed to reduce task preemption and migration over-heads. However using those services can add unpredictable overheads whenthe system has to switch from one task to another in some cases.This document screens existing solutions used in commonly availableprocessors to ease preemption and migration to highlight their strengths andweaknesses. A new hardw

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Allard, Yannick. "Dedicated Hardware Context-Switch Services for Real-Time Multiprocessor Systems." Doctoral thesis, Universite Libre de Bruxelles, 2017. https://dipot.ulb.ac.be/dspace/bitstream/2013/260377/4/TOC.pdf.

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Computers are widely present in our daily life and are used in critical applic-ations like cars, planes, pacemakers. Those real-time systems are nowadaysbased on processors which have an increasing complexity and have specifichardware services designed to reduce task preemption and migration over-heads. However using those services can add unpredictable overheads whenthe system has to switch from one task to another in some cases.This document screens existing solutions used in commonly availableprocessors to ease preemption and migration to highlight their strengths andweaknesses. A new hardw

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7

Velagapudi, Alekhya. "Time Series Event Analysis of Pooled Multiyear Telecommunication Outages." Ohio University / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1470824497.

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8

Sargolzaei, Arman. "Time-Delay Switch Attack on Networked Control Systems, Effects and Countermeasures." FIU Digital Commons, 2015. http://digitalcommons.fiu.edu/etd/2175.

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In recent years, the security of networked control systems (NCSs) has been an important challenge for many researchers. Although the security schemes for networked control systems have advanced in the past several years, there have been many acknowledged cyber attacks. As a result, this dissertation proposes the use of a novel time-delay switch (TDS) attack by introducing time delays into the dynamics of NCSs. Such an attack has devastating effects on NCSs if prevention techniques and countermeasures are not considered in the design of these systems. To overcome the stability issue caused by T

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9

Palomera-Arias, Rogelio 1972. "PIN diode switch circuit for short time high current pulse signal." Thesis, Massachusetts Institute of Technology, 1998. http://hdl.handle.net/1721.1/47505.

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10

Bharadhwaj, Harsha. "Study and Realisation of Nyquist Rate Filters in Voltage Inverter Switch Technique." Thesis, Linköping University, Department of Electrical Engineering, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-6331.

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<p>Low-sensitivity switched capacitor filters imitating 'R','L' and 'C' can be built by means of capacitances, ordinary switches and voltage inverter switches (VIS). These structures carry the inherent bilinear transformation of their doubly resistively terminated ladder reference filters. This one to one correspondence between the 's-domain' and the 'z-domain' results in the Nyquist criterion being the only limitation on the sampling frequency. This eliminates the necessity for oversampling and VIS filters can be designed for high operating rates.</p><p>Filters based on VIS principle were ana

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Akcasoy, Alican. "Connectionless Traffic And Variable Packet Size Support In High Speed Network Switches: Improvements For The Delay-limiter Switch." Master's thesis, METU, 2008. http://etd.lib.metu.edu.tr/upload/12609582/index.pdf.

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Quality of Service (QoS) support for real-time traffic is a critical issue in high speed networks. The previously proposed Delay-Limiter Switch working with the Framed-Deadline Scheduler (FDS) is a combined input-output queuing (CIOQ) packet switch that can provide end-to-end bandwidth and delay guarantees for connection-oriented traffic. The Delay-Limiter Switch works with fixed-size packets. It has a scalable architecture and can provide QoS support for connection-oriented real-time traffic in a low-complexity fashion. The Delay-Limiter Switch serves connectionless traffic by using the remai

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Ashjaei, Seyed Mohammad Hossein. "Extending FTT-SE protocol for Multi-Master/Multi-Slave Networks." Thesis, Mälardalens högskola, Akademin för innovation, design och teknik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-14464.

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Ethernet Switches are widely used in real-time distributed systems as a solution to guarantee the real-time behavior in communication. In this solution there are still some limitations which are the important obstacles obtaining timeliness in the network. These limitations are the limited number of priority levels as well as the possibility of memory overruns with consequent messages. The mentioned limitations can be eliminated using a master/slave technique along with FTT paradigm. The FTT-SE protocol which is a technique based on the master/slave and FTT methods was proposed to overcome the

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Rohem, Ilias, and Semir Sehic. "Reducering av brytningstid för vakuumbrytare : Reduction of the Breaking time for a Vacuum switch." Thesis, Linnéuniversitetet, Institutionen för fysik och elektroteknik (IFE), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-70316.

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Kowalczuk, Emma K. "Simulating, fabricating and characterising photoconductive microwave switches for RF applications." Thesis, Loughborough University, 2014. https://dspace.lboro.ac.uk/2134/14968.

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Photoconductive microwave switches can be used in place of traditional microwave switches to reconfigure antennas and RF circuits. The switch, which consists of a silicon die placed over a gap in transmission line, is controlled by illumination via a fibre optic cable. Hence there is no requirement to design electrical biasing lines which may affect RF performance. This benefit is the main motivation behind further developing and understanding the photoconductive switch. The second motivation is the growing demand for reconfigurable antennas which necessitate certain switching requirements; on

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Swindlehurst, Eric Lee. "High-Speed and Low-Power Techniques for Successive-Approximation-Register Analog-to-Digital Converters." BYU ScholarsArchive, 2020. https://scholarsarchive.byu.edu/etd/8923.

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Broadband wireless communication systems demand power-efficient analog-to-digital converters (ADCs) in the GHz and medium resolution regime. While high-speed architectures such as the flash and pipelined ADCs are capable of GHz operations, their high-power consumption reduces their attractiveness for mobile applications. On the other hand, the successive-approximation-register (SAR) ADC has an excellent power efficiency, but its slow speed has traditionally limited it to MHz applications. This dissertation puts forth several novel techniques to significantly increase the speed and power effici

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Ahmed, Toqeer. "Load balancing solution and evaluation of F5 content switch equipment." Thesis, Högskolan Dalarna, Datateknik, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:du-2356.

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The Thesis focused on hardware based Load balancing solution of web traffic through a load balancer F5 content switch. In this project, the implemented scenario for distributing HTTPtraffic load is based on different CPU usages (processing speed) of multiple member servers.Two widely used load balancing algorithms Round Robin (RR) and Ratio model (weighted Round Robin) are implemented through F5 load balancer. For evaluating the performance of F5 content switch, some experimental tests has been taken on implemented scenarios using RR and Ratio model load balancing algorithms. The performance i

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Stenholm, Roland. "Time-Multiplexed Channel Switches for Dynamic Frequency Band Reallocation." Thesis, Linköpings universitet, Datorteknik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-128793.

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A partially parallel reconfigurable channel switch is constructed for use in DFBR. Its permutation can be changed while running without any interruption in the streams of data. Three approaches are tried: one based on asorting network, one based on memories and multiplexers and one based on a Clos network. Variants with the pattern stored in memories and in shift registers are tried. They are implemented in automatically generated Verilog and synthesized for an FPGA. Their cost in terms of area use, memory use and maximum clock frequency is compared and the results show that the Clos based app

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Isaacson, Spencer W. "Hardware Support for a Configurable Architecture for Real-Time Embedded Systems on a Programmable Chip." BYU ScholarsArchive, 2007. https://scholarsarchive.byu.edu/etd/971.

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Current FPGA technology has advanced to the point that useful embedded SoPCs can now be designed. The Real Time Processor (RTP) project at Brigham Young University leverages the advances in FPGA technology with a system architecture that is customizable to specific applications. A simple real-time processor has been designed to provide support for a hardware-assisted real-time operating system providing fast context switches. As part of the hardware RTOS, the following have been implemented in hardware: scheduler, register banks, mutex, semaphore, queue, interrupts, event, and others. A novel

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Löser, Jork. "Low-Latency Hard Real-Time Communication over Switched Ethernet." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2006. http://nbn-resolving.de/urn:nbn:de:swb:14-1138799484082-54477.

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With the upsurge in the demand for high-bandwidth networked real-time applications in cost-sensitive environments, a key issue is to take advantage of developments of commodity components that offer a multiple of the throughput of classical real-time solutions. It was the starting hypothesis of this dissertation that with fine grained traffic shaping as the only means of node cooperation, it should be possible to achieve lower guaranteed delays and higher bandwidth utilization than with traditional approaches, even though Switched Ethernet does not support policing in the switches as other net

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Löser, Jork. "Low-Latency Hard Real-Time Communication over Switched Ethernet." Doctoral thesis, Technische Universität Dresden, 2005. https://tud.qucosa.de/id/qucosa%3A24637.

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With the upsurge in the demand for high-bandwidth networked real-time applications in cost-sensitive environments, a key issue is to take advantage of developments of commodity components that offer a multiple of the throughput of classical real-time solutions. It was the starting hypothesis of this dissertation that with fine grained traffic shaping as the only means of node cooperation, it should be possible to achieve lower guaranteed delays and higher bandwidth utilization than with traditional approaches, even though Switched Ethernet does not support policing in the switches as other net

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Hawecker, Jacques. "Terahertz time resolved spectroscopy of Intersubband Polaritons and Spintronic Emitters." Electronic Thesis or Diss., Sorbonne université, 2021. http://www.theses.fr/2021SORUS101.

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Le domaine térahertz (THz) inclut une riche variété d’applications pratiques et fondamentales où la basse énergie des photons permettent l’investigation de nouveaux phénomènes d’interaction lumière-matière. Ces travaux se focalisent sur deux thématiques émergentes où la spectroscopie THz ultra-rapide représente un outil particulièrement adapté à l’étude de phénomènes fondamentaux ainsi qu’à la conception de nouvelles sources THz. La première thématique concerne la spintronique THz capable de générer des ondes THz équivalentes à celles obtenues au sein des cristaux non-linéaires. Cette technolo

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Ahmed, Iftikhar, and Muhammad Farooq. "Switched Multi-hop Priority Queued Networks-Influence of priority levels on Soft Real-time Performance." Thesis, Högskolan i Halmstad, Sektionen för Informationsvetenskap, Data– och Elektroteknik (IDE), 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-6054.

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In the last few years, the number of real-time applications has increased. These applications are sensitive and require the methods to utilize existing network capacity efficiently to meet performance requirements and achieve the maximum throughput to overcome delay, jitter and packet loss. In such cases, when the network needs to support highly interactive traffic like packet-switched voice, the network congestion is an issue that can lead to various problems. If the level of congestion is high enough, the users may not be able to complete their calls and have existing calls dropped or may e

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Петухов, І. В. "Проект системи електропостачання торгівельно-розважального комплексу". Master's thesis, Сумський державний університет, 2019. http://essuir.sumdu.edu.ua/handle/123456789/76189.

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Визначено електричні навантаження, параметри і характеристики електропостачання об'єкту. Виконано розрахунок і перевірка перерізу кабелів, уставок і вимикаючої здатності апаратів захисту. Розраховано та укомплектовано дві трансформаторні підстанції різної потужності. Для захисту трансформаторів і кабельних ліній зовнішньої системи електропостачання вибрано вакуумні вимикачі і запобіжники. Проведено техніко-економічне обґрунтування вибору схеми електроживлення комплексу, а також розрахунок сумарних капіталовкладень при проектуванні електропостачання. Проаналізовано небезпечні і шкідливі фактор

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Luedtke, Elin. "Minimizing Transformer No-Load Losses at Hydropower Plants : A Study of Effects from Transformer Switch-Off During Stand-by Operation." Thesis, Uppsala universitet, Institutionen för fysik och astronomi, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-447635.

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Hydropower is the most important power balancing resource in the Swedish electrical power system, regulating the power supply to match the load. Consequently, several hydropower plants have periods of stand-by operation where the power production is absent but where several devices within a plant are still active. Such a device is the step-up power transformer, which during stand-by operation still generates no-load energy losses. These losses can accumulate to a considerable amount of energy and costs during the long technical lifetime of the apparatus. One option to minimize these no-load en

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Woolston, C. P. "A method of increasing capacity of an electricity distribution network through predictive modelling and intelligent protection." Thesis, Queensland University of Technology, 2000. https://eprints.qut.edu.au/36121/1/36121_Woolston_2000.pdf.

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This thesis describes the development of a software system which was implemented by the South East Queensland Electricity Board Australia (SEQEB). The software uses temperature probes and mathematical modelling to continuously determine maximum current carrying capacity of underground feeders. It identifies other plant capable of modelling (such as Transformers) and develops a higher level software architecture for which models may be integrated and with which automated overload verification and plant protection may be achieved. The usefulness of this software is that it permits higher curren

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Atasoy, Halil Ibrahim. "Design And Fabrication Of Rf Mems Switches And Instrumentation For Performance Evaluation." Thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/2/12608831/index.pdf.

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This thesis presents the RF and mechanical design of a metal-to-metal contact RF MEMS switch. Metal-to-metal contact RF MEMS switches are especially preferred in low frequency bands where capacitive switches suffer from isolation due to the limited reactance. Frequency band of operation of the designed switch is from DC to beyond X-band. Measured insertion loss of the structure is less than 0.2 dB, return loss is better than 30 dB, and isolation is better than 20 dB up to 20 GHz. Isolation is greater than 25 dB below 10 GHz. Hence, for wideband applications, this switch offers very low loss

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Otava, Lukáš. "Firmware pro robotické vozítko." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2013. http://www.nusl.cz/ntk/nusl-220069.

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This thesis is focused on a firmware for robotic vehicle based on the ARM Cortex-M3 architecture that is running a real-time operating system (RTOS). Theoretical part describes available solutions of embedded RTOS and concrete HW implementation of the robotic vehicle. There is also comparison of the three selected RTOS with their measurements. Result of this thesis is base firmware compounded by a program modules that controls HW parts. There is also a sample PC and firmware application that extends base firmware. This sample application is able to communicate with robotic vehicle, control whe

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Abusitta, Musa M. "Design and modelling of beam steering antenna array for mobile and wireless applications using optimisation algorithms : simulation and measrement of switch and phase shifter for beam steering antenna array by applying reactive loading and time modulated switching techniques, optimised using genetic algorithms and particle swarm methods." Thesis, University of Bradford, 2012. http://hdl.handle.net/10454/5745.

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The objectives of this work were to investigate, design and implement beam steering antenna arrays for mobile and wireless applications using the genetic algorithm (GA) and particle swarm optimisation (PSO) techniques as optimisation design tools. Several antenna designs were implemented and tested: initially, a printed dipole antenna integrated with a duplex RF switch used for mobile base station antenna beam steering was investigated. A coplanar waveguide (CPW) to coplanar strip (CPS) transition was adopted to feed the printed dipole. A novel RF switch circuit, used to control the RF signal

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Abusitta, M. M. "Design and modelling of beam steering antenna array for mobile and wireless applications using optimisation algorithms. Simulation and measrement of switch and phase shifter for beam steering antenna array by applying reactive loading and time modulated switching techniques, optimised using genetic algorithms and particle swarm methods." Thesis, University of Bradford, 2012. http://hdl.handle.net/10454/5745.

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The objectives of this work were to investigate, design and implement beam steering antenna arrays for mobile and wireless applications using the genetic algorithm (GA) and particle swarm optimisation (PSO) techniques as optimisation design tools. Several antenna designs were implemented and tested: initially, a printed dipole antenna integrated with a duplex RF switch used for mobile base station antenna beam steering was investigated. A coplanar waveguide (CPW) to coplanar strip (CPS) transition was adopted to feed the printed dipole. A novel RF switch circuit, used to control the RF si

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Ashjaei, Mohammad. "Real-Time Communication over Switched Ethernet with Resource Reservation." Doctoral thesis, Mälardalens högskola, Inbyggda system, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-33220.

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Due to the need for advanced computer-controlled functionality in distributed embedded systems the requirements on network communication are becoming overly intricate. This dissertation targets the requirements that are concerned with real-time guarantees, run-time adaptation, resource utilization and flexibility during the development. The Flexible Time-Triggered Switched Ethernet (FTT-SE) and Hard Real-Time Ethernet Switching (HaRTES) network architectures have emerged as two promising solutions that can cater for these requirements. However, these architectures do not support multi-hop comm

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Stridfelt, Arvid. "High Speed On-Chip Measurment Circuit." Thesis, Linköping University, Department of Electrical Engineering, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-2764.

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<p>This master thesis describes a design exploration of a circuit capable of measuring high speed signals without adding significant capacitive load to the measuring node. </p><p>It is designed in a 0.13 CMOS process with a supply voltage of 1.2 Volt. The circuit is a master and slave, track-and-hold architecture incorporated with a capacitive voltage divider and a NMOS source follower as input buffer to protect the measuring node and increase the input voltage range. </p><p>This thesis presents the implementation process and the theory needed to understand the design decisions and considerati

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Yekeh, Farahnaz. "Hierarchical server-based communication with switched Ethernet." Thesis, Mälardalen University, School of Innovation, Design and Engineering, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-9914.

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<p>Server-based architectures have recently generated more interests and are currently considered for usage for communication in networks. In parallel, switched Ethernet technology has been widely adopted and used in lots of networked systems. Current requirements of networks for supporting real-time guarantees while being flexible at the same time have made the network designers to consider addition of some features to common switches. The FTT-Enabled Ethernet switch is a switch that has been developed to support the FTT (Flexible Time Triggered) paradigm. Recently, servers have been added in

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Lu, Yueyun. "Switching Stabilization of Continuous-Time Switched Systems." The Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1479201964449478.

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Gorgues, Alonso Miguel. "Improving Network-on-Chip Performance in Multi-Core Systems." Doctoral thesis, Universitat Politècnica de València, 2018. http://hdl.handle.net/10251/107336.

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La red en el chip (NoC) se han convertido en el elemento clave para la comunicación eficiente entre los núcleos dentro de los chip multiprocesador (CMP). Tanto el uso de aplicaciones paralelas en los CMPs como el incremento de la cantidad de memoria necesitada por las aplicaciones, ha impulsado que la red de comunicación gane una mayor importancia. La NoC es la encargada de transportar toda la información requerida por los núcleos. Además, el incremento en el número de núcleos en los CMPs impulsa las NoC a ser diseñadas de forma escalable, pero al mismo tiempo sin que esto afecte a las presta

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Ding, Xu Chu. "Real-time optimal control of autonomous switched systems." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/31725.

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Thesis (Ph.D)--Electrical and Computer Engineering, Georgia Institute of Technology, 2010.<br>Committee Chair: Egerstedt, Magnus; Committee Co-Chair: Wardi, Yorai; Committee Member: Riley, George; Committee Member: Taylor, David; Committee Member: Tovey, Craig; Committee Member: Yezzi, Anthony. Part of the SMARTech Electronic Thesis and Dissertation Collection.

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Chen, Derrick. "TSFPGA, a time-switched field-programmable gate array." Thesis, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/41373.

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Niu, Weihe. "Exact Modeling of Time-Interval-Modulated Switched Networks." PDXScholar, 1993. https://pdxscholar.library.pdx.edu/open_access_etds/4622.

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The frequency response analysis of switched networks plays a very important part in designing various kinds of power converter circuits. In this thesis two frequency response techniques for analyzing switching power converters are discussed. One method provides a mathematical description which treats the converter as a periodic time varying system. A linearized small signal model is subsequently derived. The major part of the thesis concentrates on this accurate exact small-signal technique. The derivation involves state space representation and the use of the time varying transfer function. A

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Koken, Erman. "A Comparison Of Time-switched Transmit Diversity And Space-time Coded Systems Over Time-varying Miso Channels." Master's thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613557/index.pdf.

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This thesis presents a comparison between two transmit diversity schemes, namely space-time coding and time-switched transmit diversity (TSTD) over block-fading and time-varying multi-input single-output (MISO) channels with different channel parameters. The schemes are concatenated with outer channel codes in order to achieve spatio-temporal diversity. The analytical results are derived for the error performances of the systems and the simulation results as well as outage probabilities are provided. Besides, the details of the pilot-symbol-aided modulation (PSAM) technique are investigated an

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Salehi, Mohsen. "Time-varying Small Antennas for Wideband Applications." Diss., Virginia Tech, 2013. http://hdl.handle.net/10919/25435.

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A desirable goal in wireless communication systems is to achieve a high-rate data transmission through electrically small antennas. However, the overall transmission bandwidth is limited by the antenna size. As a well-known physical limitation, maximum achievable bandwidth of a small antenna is governed by the fundamental limit which defines a lower bound on the antenna quality factor. This limit is a function of electrical size of the antenna and therefore, as the antenna shrinks in size the bandwidth decreases as well. This dissertation presents a new technique to decouple the impedance band

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Reber, David Patrick. "Exponential Stability of Intrinsically Stable Dynamical Networks and Switched Networks with Time-Varying Time Delays." BYU ScholarsArchive, 2019. https://scholarsarchive.byu.edu/etd/7136.

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Dynamic processes on real-world networks are time-delayed due to finite processing speeds and the need to transmit data over nonzero distances. These time-delays often destabilize the network's dynamics, but are difficult to analyze because they increase the dimension of the network.We present results outlining an alternative means of analyzing these networks, by focusing analysis on the Lipschitz matrix of the relatively low-dimensional undelayed network. The key criteria, intrinsic stability, is computationally efficient to verify by use of the power method. We demonstrate applications from

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Wu, Taodi, and Shuyang Ding. "Analysing Real-Time Traffic in Wormhole-Switched On-ChipNetworks." Thesis, Mälardalens högskola, Inbyggda system, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-32057.

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With the increasing demand of computation capabilities, many-core processors are gain-ing more and more attention. As a communication subsystem many-core processors, Network-on-Chip (NoC) draws a lot of attention in the related research fields. A NoC is used to deliver messages among different cores. For many applications, timeliness is of great importance, especially when the application has hard real-time requirements. Thus, the worst-case end-to-end delays of all the messages passing through a NoC should be concerned. Unfortunately, there is no existing analysis tool that can support multip

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Chen, Lixiong. "A real-time multicast design for multihop switched fieldbuses." Thesis, McGill University, 2012. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=106388.

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The rapid scaling up of Networked Control Systems (NCS) is forcing traditional single-hop shared medium industrial fieldbuses (a.k.a. fieldbuses) to evolve toward multi-hop switched fieldbuses. Such evolution is two-fold. The first is the re-design of switch architecture. To meet the real-time nature of NCS traffic, and to lay a smooth evolution path for switch manufacturers, it is widely agreed that one promising switch architecture is input-queueing crossbar with Time Division Multiple Access (TDMA). The second is the support for real-time multicast. NCS applications usually involve coordina

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Ashjaei, Mohammad. "Multi-Hop Real-Time Communication over Switched Ethernet Technology." Licentiate thesis, Mälardalens högskola, Akademin för innovation, design och teknik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-26121.

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Switched Ethernet technology has been introduced to be exploited in real-time communication systems due to its features such as its high throughput and wide availability, hence being a cost-effective solution. Many real-time switched Ethernet protocols have been developed, preserving the profits of traditional Ethernet technology, to overcome the limitations imposed by using commercially available (COTS) switches. These limitations mainly originate from the non-deterministic behavior of the Ethernet switches inherent in the use of FIFO queues and a limited number of priority levels. In our r

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Liu, Meng. "Real-Time Communication over Wormhole-Switched On-Chip Networks." Doctoral thesis, Mälardalens högskola, Inbyggda system, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-35316.

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In a modern industrial system, the requirement on computational capacity has increased dramatically, in order to support a higher number of functionalities, to process a larger amount of data or to make faster and safer run-time decisions. Instead of using a traditional single-core processor where threads can only be executed sequentially, multi-core and many-core processors are gaining more and more attentions nowadays. In a multi-core processor, software programs can be executed in parallel, which can thus boost the computational performance. Many-core processors are specialized multi-core p

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Le, Coënt Adrien. "Guaranteed control synthesis for switched space-time dynamical systems." Thesis, Université Paris-Saclay (ComUE), 2017. http://www.theses.fr/2017SACLN039/document.

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Dans le présent travail de thèse, nous souhaitons approfondir l’étude des systèmes à commutation pour des problèmes aux dérivées partielles en explorant de nouvelles pistes d’investigation, incluant notamment la question de la synthèse de contrôle garanti par décomposition de l’espace des états, la synthèse de contrôle nécessitant la réduction de modèle, le contrôle des différentes sources d’erreur sur des quantités d’intérêt, et la mesure des incertitudes sur les états et les paramètres du modèle. Nous envisageons l’utilisation de méthodes de calcul ensemblistes associées à des méthodes de ré

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Kumar, Nachegari Kishore, and Eadi Suresh Babu. "Simulation of Switched Ethernet." Thesis, Halmstad University, School of Information Science, Computer and Electrical Engineering (IDE), 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-231.

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<p>Switched Ethernet is an Ethernet LAN that uses switches to connect individual nodes. </p><p>This is popular because of its effective and convenient way of extending the bandwidth of </p><p>existing Ethernets. Switched Ethernet is being considered by the industry community because </p><p>of its open standardization, cost effectiveness, and the support for higher data rates up to </p><p>10Gbps. Even though many special-purposed solutions were proposed to support time </p><p>constrained communication over Switched Ethernet, still there were some doubts about the </p><p>real time handling capab

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Ganjalizadeh, Milad. "Reliability for Hard Real-time Communication in Packet-switched Networks." Thesis, Högskolan i Halmstad, Centrum för forskning om inbyggda system (CERES), 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-27973.

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Nowadays, different companies use Ethernet for different industrial applications. Industrial Ethernet has some specific requirements due to its specific applications and environmental conditions which is the reason that makes it different than corporate LANs. Real-time guarantees, which require precise synchronization between all communication devices, as well as reliability are the keys in performance evaluation of different methods [1]. High bandwidth, high availability, reduced cost, support for open infrastructure as well as deterministic architecture make packet-switched networks suitabl

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Fan, Xing. "Real-Time Services in Packet-Switched Networks for Embedded Applications." Doctoral thesis, Högskolan i Halmstad, Centrum för forskning om inbyggda system (CERES), 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-1984.

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Embedded applications have become more and more complex, increasing the demands on the communication network. For reasons such as safety and usability, there are real-time constraints that must be met. Also, to offer high performance, network protocols should offer efficient user services aimed at specific types of communication. At the same time, it is desirable to design and implement embedded networks with reduced cost and development time, which means using available hardware for standard networks. To that end, there is a trend towards using switched Ethernet for embedded systems because o

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Heeley, Roger. "Real time HEP applications using T9000 transputers, links and switches." Thesis, University of Liverpool, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.320691.

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Marau, Ricardo Roberto Duarte. "Real-time communications over switched Ethernet supporting dynamic QoS management." Doctoral thesis, Universidade de Aveiro, 2009. http://hdl.handle.net/10773/2224.

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Doutoramento em Engenharia Informática<br>Durante a última década temos assistido a um crescente aumento na utilização de sistemas embutidos para suporte ao controlo de processos, de sistemas robóticos, de sistemas de transportes e veículos e até de sistemas domóticos e eletrodomésticos. Muitas destas aplicações são críticas em termos de segurança de pessoas e bens e requerem um alto nível de determinismo com respeito aos instantes de execução das respectivas tarefas. Além disso, a implantação destes sistemas pode estar sujeita a limitações estruturais, exigindo ou beneficiando de uma c

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