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Dissertations / Theses on the topic 'Internal decay'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

Ohsawa, Daisuke. "K-Shell Internal Ionization and Excitation in β Decay of [35]S". 京都大学 (Kyoto University), 1999. http://hdl.handle.net/2433/157190.

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本文データは平成22年度国立国会図書館の学位論文(博士)のデジタル化実施により作成された画像ファイルを基にpdf変換したものである<br>Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(理学)<br>甲第8054号<br>理博第2126号<br>新制||理||1134(附属図書館)<br>UT51-99-Z9<br>京都大学大学院理学研究科物理学・宇宙物理学専攻<br>(主査)教授向山毅, 教授石黒武彦, 教授薮崎努<br>学位規則第4条第1項該当

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Sigmund, Eric, Ravinder Regatte, Mark Schweitzer, Hyungjoon Cho, and Yi-Qiao Song. "In vivo imaging of signal decay due to diffusion in the internal field in human knee trabecular bone." Universitätsbibliothek Leipzig, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-192231.

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This study presents the first demonstration of the MR signal decay due to diffusion in the internal field (DDIF) for in vivo knee trabecular bone imaging. DDIF contrast was compared with high resolution FLASH, T1, and T2* mapping in healthy volunteers. DDIF maps showed spatial variation, superimposed on a T1 background, reflecting trabecular structure. DDIF and T2* maps showed correlated contrast near dense trabeculae, but their spatial textures differed, suggesting distinct structural sensitivities.

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3

Sigmund, Eric, Ravinder Regatte, Mark Schweitzer, Hyungjoon Cho, and Yi-Qiao Song. "In vivo imaging of signal decay due to diffusion in the internal field in human knee trabecular bone." Diffusion fundamentals 10 (2009) 18, S. 1-3, 2009. https://ul.qucosa.de/id/qucosa%3A14109.

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This study presents the first demonstration of the MR signal decay due to diffusion in the internal field (DDIF) for in vivo knee trabecular bone imaging. DDIF contrast was compared with high resolution FLASH, T1, and T2* mapping in healthy volunteers. DDIF maps showed spatial variation, superimposed on a T1 background, reflecting trabecular structure. DDIF and T2* maps showed correlated contrast near dense trabeculae, but their spatial textures differed, suggesting distinct structural sensitivities.

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4

Allatt, Roger Giles. "Fine structure in the alpha decay of '1'9'2Po : shape coexistence in '1'8'8Pb." Thesis, University of Liverpool, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.367136.

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Mazzurana, Elis Regina. "Deterioração pós-colheita de maçãs em função do manejo da temperatura e do etileno." Universidade do Estado de Santa Catarina, 2013. http://tede.udesc.br/handle/handle/1187.

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Made available in DSpace on 2016-12-08T16:44:47Z (GMT). No. of bitstreams: 1 PGPV13MA132.pdf: 590187 bytes, checksum: 07954870193d62f3303f0654bca77671 (MD5) Previous issue date: 2013-08-02<br>Cold storage can induce the development of chilling injury in fruit of some apple cultivars, even when kept at temperatures above the freezing point. This study evaluated the increment of storage temperature for Gala mutation apples under controlled atmosphere (CA), as a method to reduce the development of internal browning, as well as the energy consumption for cooling. Experiments were conducted in

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Chakma, Rikel. "Characterization of the multi-detector GABRIELA and decay spectroscopy of ²⁵⁵Rf and ²⁵¹No." Thesis, université Paris-Saclay, 2020. http://www.theses.fr/2020UPASP066.

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Une question sans réponse qui se trouve au carrefour de la physique et de la chimie est : quelle est la limite du tableau périodique. Les théories nucléaires suggèrent l'existence de ce qu'on appelle "l'îlôt de stabilité", habitée par des éléments super-lourds à longue durée de vie. Ces éléments ne doivent leur existence qu’à d’importants effets quantiques. Ainsi, les éléments super-lourds forment un laboratoire unique pour l'étude de la structure et de la dynamique nucléaires sous l'influence d’une très forte répulsion Coulombienne entre les nombreux protons du noyau. Cependant, un défi théor

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Nordhage, Örjan. "On a Hydrogen Pellet Target for Antiproton Physics with PANDA." Doctoral thesis, Uppsala University, Department of Nuclear and Particle Physics, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-7137.

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<p>The PANDA experiment is a part of the future FAIR accelerator facility and will study the strong interaction by detecting the reaction products from antiproton-proton annihilations in a near full solid-angle configuration. One option for the internal proton target in PANDA is frozen micro-spheres of hydrogen, so-called pellets.</p><p>Such a pellet target is interesting because of the unique characteristics it offers; the high target thickness, the small interaction volume, the minimal gas load on the vacuum system, and the possibility of tracking individual pellets. Nevertheless, it is poss

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Cedervall, Simon Bertil. "Invariant measures and correlation decay for s-multimodal interval maps." Thesis, Imperial College London, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.434345.

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9

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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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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Miller, Charles Miller. "THE EFFECT OF DISTANCE DECAY: A STUDY OF AUTOMOTIVE RETAILING." Diss., Temple University Libraries, 2017. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/439401.

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Business Administration/Interdisciplinary<br>D.B.A.<br>Retail automotive literature that examines how the distance between a retail automotive facility and the prospective purchaser affects market performance is limited. Primary data for this study indicates that distance and purchase in the retail automotive sector move in opposite directions. This study examines similar goods that have high barriers of entry and proposes other methods of increasing market reach. This is a study of the conditions that affect the market performance for imported luxury vehicles. First, is the effect of distance

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Kamat, Narasinha. "A delay-efficient rerouting scheme for voice over ip traffic." [Gainesville, Fla.] : University of Florida, 2002. http://purl.fcla.edu/fcla/etd/UFE0000548.

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Auzias, Maël. "Programming Support for a Delay-Tolerant Web of Things." Thesis, Lorient, 2017. http://www.theses.fr/2017LORIS462/document.

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L'internet des Objets (IoT) est habituellement présenté comme l'ensemble d'objets interconnectés à travers un réseau qui est, en pratique, Internet. Or, il existe beaucoup de cas où la connectivité est intermittente à cause des interfaces radio courte-portées et des contraintes d'économie d'énergie. L'architecture de réseautage tolérant les délais (DTN) ainsi que le Bundle Protocole (BP) sont considérés comme des solutions viables pour résoudre ce genre de challenges grâce au mécanisme store-carry-and-forward. Cette thèse vise à fournir des supports de programmation adaptés autant à l'IoT qu'a

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Tambuwal, Ahmed Yusuf. "New startup mechanisms for faster web response time on lossy and long-delay Internet paths." Thesis, University of Aberdeen, 2013. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=204056.

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The present Internet is used to support a diversity of application types, each with different performance expectations. Latency is a fundamental component that affects end-user's Internet experience. Many applications can benefit from reduced latency. The thesis examines the startup latency of the Standard Transmission Control Protocol (TCP Reno) congestion control algorithm when used for short-lived interactive applications. TCP plays a key role in preventing Internet failure by decreasing network utilization when it detects packet drops or receives explicit congestion signals. TCP Reno sende

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Brooks, Garcia Alison Marissa. "Internal Environmental Characteristics of a Chiribaya Style Tomb Holding Swine Remains and their Taphonomic Impact on Decomposition Delay, A Requisit for Mummification." Thesis, The University of Arizona, 2014. http://hdl.handle.net/10150/320080.

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Lakay, Elthea Trevolee. "SIP-based content development for wireless mobile devices with delay constraints." Thesis, University of the Western Cape, 2006. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_9048_1182233050.

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<p>SIP is receiving much attention these days and it seems to be the most promising candidate as a signaling protocol for the current and future IP telephony services. Realizing this, there is the obvious need to provide a certain level of quality comparable to the traditional telephone service signalling system. Thus, we identified the major costs of SIP, which were found to be delay and security. This thesis discusses the costs of SIP, the solutions for the major costs, and the development of a low cost SIP application. The literature review of the components used to develop such a service i

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Feix, Felix. "Recombination dynamics in (In,Ga)N/GaN heterostructures: Influence of localization and crystal polarity." Doctoral thesis, Humboldt-Universität zu Berlin, 2018. http://dx.doi.org/10.18452/19134.

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(In,Ga)N/GaN-Leuchtdioden wurden vor mehr als 10 Jahren kommerzialisiert, dennoch ist das Verständnis über den Einfluss von Lokalisierung auf die Rekombinationsdynamik in den (In,Ga)N/GaN Quantengräben (QG) unvollständig. In dieser Arbeit nutzen wir die temperaturabhängige stationäre und zeitaufgelöste Spektroskopie der Photolumineszenz (PL), um diesen Einfluss in einer typischen Ga-polaren, planaren (In,Ga)N/GaN-QG-Struktur zu untersuchen. Zusätzlich dehnen wir unsere Studie auf N-polare, axiale (In,Ga)N/GaN Quantumscheiben, nichtpolare Kern/Mantel GaN/(In,Ga)N µ-Drähte und Ga-polare, submono

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Nan, Yucen. "Cost-effective Offloading Strategy for Delay-sensitive Applications in Cloud of Things Systems." Thesis, The University of Sydney, 2017. http://hdl.handle.net/2123/16789.

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The steep rise of Internet of Things (IoT) applications along with the limitations of Cloud Computing to address all IoT requirements leveraged a new distributed computing paradigm called Fog Computing, which aims to process data at the edge of the network. With the help of Fog Computing, some of the uncertainties of the communication among different tiers like the transmission latency, monetary spending and application loss caused by Cloud Computing can be effectively reduced. However, as the processing capacity of Fog nodes is more limited than that of cloud platforms, running all applicati

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Srivastava, Abhinav. "Distributed real-time control via the internet." Thesis, [College Station, Tex. : Texas A&M University, 2003. http://hdl.handle.net/1969.1/165.

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Thesis (MS)--Texas A&M University, 2003.<br>"Major Subject: Mechanical Engineering" Title from author supplied metadata (automated record created on Jul. 18, 2005.) Vita. Abstract. Includes bibliographical references.

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Thoo, Wei Jet. "A study of the ignition delay characteristics of combustion in a compression ignition engine operating on blended mixtures of diesel and gasoline." Thesis, University of Nottingham, 2016. http://eprints.nottingham.ac.uk/32843/.

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The interest to study diesel-gasoline fuel mix for CI engine combustion had been motivated by the higher thermal efficiency of CI engine compared to SI engine which gasoline normally runs in and the report of having lower NOx and PM emissions for gasoline combustion in CI engine. The experimental CI engine was unable to run on 100% gasoline but able to run on gasoline blend as high as G80 with default SOI timing setting. 100% gasoline would not run despite it contains only 20% more gasoline than G80 due to its extremely longer ignition delay caused by the exponential increase of gasoline blend

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Karakas, Mehmet. "Determination Of Network Delay Distribution Over The Internet." Master's thesis, METU, 2003. http://etd.lib.metu.edu.tr/upload/1223155/index.pdf.

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The rapid growth of the Internet and the proliferation of its new applications pose a serious challenge in network performance management and monitoring. The current Internet has no mechanism for providing feedback on network congestion to the end-systems at the IP layer. For applications and their end hosts, end-to-end measurements may be the only way of measuring network performance. Understanding the packet delay and loss behavior of the Internet is important for proper design of network algorithms such as routing and flow control algorithms, for the dimensioning of buffers and link capaci

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Nguyen, Hoan Kim Huynh. "Volterra Systems with Realizable Kernels." Diss., Virginia Tech, 2004. http://hdl.handle.net/10919/11153.

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We compare an internal state method and a direct Runge-Kutta method for solving Volterra integro-differential equations and Volterra delay differential equations. The internal state method requires the kernel of the Volterra integral to be realizable as an impulse response function. We discover that when applicable, the internal state method is orders of magnitude more efficient than the direct numerical method. However, constructing state representation for realizable kernels can be challenging at times; therefore, we propose a rational approximation approach to avoid the problem. Th

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Mäntyniemi, A. (Antti). "An integrated CMOS high precision time-to-digital converter based on stabilised three-stage delay line interpolation." Doctoral thesis, University of Oulu, 2004. http://urn.fi/urn:isbn:951427461X.

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Abstract This thesis describes the development of a high precision time-to-digital converter (TDC) in which the conversion is based on a counter and three-stage stabilised delay line interpolation developed in this work. The biggest design challenges in the design of a TDC are related to the fact that the arrival moment of the hit signals (start and stop) is unknown and asynchronous with respect to the reference clock edges. Yet, the time interval measurement system must provide an immediate and unambiguous measurement result over the full dynamic range. It must be made sure that the readings

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Ramaisa, Motlalepula. "Inferring congestion from delay and loss characteristics using parameters of the three-parameter Weibull distribution." Diss., Pretoria : [s.n.], 2005. http://upetd.up.ac.za/thesis/available/etd-08282007-112036.

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Mamlouk, Lamia. "Les déterminants du report de l'achat en ligne." Thesis, Aix-Marseille 3, 2011. http://www.theses.fr/2011AIX32027.

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Cette thèse se propose de contribuer à l’avancement des travaux en marketing sur le comportement d’achat et de report sur Internet. Dans ce travail, nous avons proposé une nouvelle vision du concept de report d’achat et de celui de la procrastination de l’achat. Après une étude qualitative et une revue de la littérature, nous avons identifié plusieurs causes potentielles du report de l’achat en ligne que nous avons classé en deux catégories, selon le type de report qu’elles induisent : Les causes du report subi et les causes du report choisi de l’achat en ligne. Nous avons ensuite testé l’effe

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Sousa, Alexandre José Barbieri de. "IXnet - proposta de Internet alternativa para aplicações sensíveis a atraso." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/3/3142/tde-02092009-153606/.

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A Internet pode não atender às necessidades exigidas por aplicações sensíveis a atraso tais como voz, video ou até jogos em redes. A distância de saltos entre o cliente e o servidor, o congestionamento dos links e a aleatoriedade do caminho do pacote, podem causar atrasos. Existem motivações e até implementações de infra-estruturas alternativas para atender necessidades não garantidas pela Internet. Um exemplo é o projeto Rede COMEP, que propõe uma rede alternativa a fim de diminuir a distância e aumentar a capacidade entre os usuários (alunos e professores) e o conteúdo. Esta tese propõe uma

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Ghandi, Sanaa. "Analysis of network delay measurements : Data mining methods for completion and segmentation." Electronic Thesis or Diss., Ecole nationale supérieure Mines-Télécom Atlantique Bretagne Pays de la Loire, 2023. http://www.theses.fr/2023IMTA0382.

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La croissance exponentielle d'Internet nécessite une supervision régulière des métriques réseau. Cette thèse se concentre sur les délais aller-retour et la possibilité de résoudre les problèmes de données manquantes et de segmentation multivariée. La première contribution comprend l'orchestration de campagnes de mesure des délais, ainsi que le développement d'un simulateur qui génère des traces de délais de bout en bout. La deuxième contribution de cette thèse est l’introduction de deux méthodes de complétion de données manquantes. La première méthode repose sur la factorisation de matrices no

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Sonono, Tofik. "Interoperable Retransmission Protocols with Low Latency and Constrained Delay : A Performance Evaluation of RIST and SRT." Thesis, KTH, Kommunikationssystem, CoS, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-254897.

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The media industry has during the last decade migrated services from dedicated medianetworks to more shared resources and lately also the public internet and public data centers. Inorder to cater for such transition, several protocols have been designed to meet the demand forhigh-quality media transport over lossy infrastructure, protocols such as SRT and RIST. Thepurpose of Reliable Internet Stream Transport (RIST) and Secure Reliable Transport (SRT) is tohave all vendors of broadcasting equipment support an interoperable way of communication. Thelack of interoperability locks consumers into

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Chen, Wu. "Parameter self-tuning in internet congestion control." Thesis, Loughborough University, 2010. https://dspace.lboro.ac.uk/2134/6361.

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Active Queue Management (AQM) aims to achieve high link utilization, low queuing delay and low loss rate in routers. However, it is difficult to adapt AQM parameters to constantly provide desirable transient and steady-state performance under highly dynamic network scenarios. They need to be a trade-off made between queuing delay and utilization. The queue size would become unstable when round-trip time or link capacity increases, or would be unnecessarily large when round-trip time or link capacity decreases. Effective ways of adapting AQM parameters to obtain good performance have remained a

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Jonglez, Baptiste. "Mécanismes de bout en bout pour améliorer la latence dans les réseaux de communication." Thesis, Université Grenoble Alpes, 2020. http://www.theses.fr/2020GRALM048.

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Les technologies réseau qui font fonctionner Internet ont beaucoup évolué depuis ses débuts, mais il y a un aspect de la performance des réseaux qui a peu évolué : la latence. En 25 ans, le débit disponible en couche physique a augmenté de 5 ordres de grandeur, tandis que la latence s'est à peine améliorée d'un ordre de grandeur. La latence est en effet limitée par des contraintes physiques fortes comme la vitesse de la lumière.Cette évolution différenciée du débit et de la latence a un impact important sur la conception des protocoles et leur performance, et notamment sur les protocoles de tr

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Alshaer, Mohammad. "An Efficient Framework for Processing and Analyzing Unstructured Text to Discover Delivery Delay and Optimization of Route Planning in Realtime." Thesis, Lyon, 2019. http://www.theses.fr/2019LYSE1105/document.

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L'Internet des objets, ou IdO (en anglais Internet of Things, ou IoT) conduit à un changement de paradigme du secteur de la logistique. L'avènement de l'IoT a modifié l'écosystème de la gestion des services logistiques. Les fournisseurs de services logistiques utilisent aujourd'hui des technologies de capteurs telles que le GPS ou la télémétrie pour collecter des données en temps réel pendant la livraison. La collecte en temps réel des données permet aux fournisseurs de services de suivre et de gérer efficacement leur processus d'expédition. Le principal avantage de la collecte de données en t

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Ching, Ho. "Internet Based Bilateral Teleoperation." Diss., Georgia Institute of Technology, 2006. http://hdl.handle.net/1853/14079.

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In conventional bilateral teleoperation, transmission delay over the Internet can potentially cause instability. The wave variable algorithm guarantees stability under varying transmission delay at the cost of poor transient performance. Adding a predictor on the master side can reduce this undesirable side-effect, but that would require a slave model. An inaccurate slave model used in the predictor as well as variations in transmission delay, both of which are likely under realistic situations, can result in steady state errors. A direct drift control algorithm is used to drive this error

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Zhong, Shengtong. "The remote control ofmobile robot on theInternet." Thesis, Högskolan Dalarna, Datateknik, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:du-2857.

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During last decades, the Internet teleobotics has been growing at an enormous ratedue to the rapid improvement of Internet technology. This paper presents theinternet-based remote control of mobile robot. To face unpredictable Internet delaysand possible connection rupture, a direct continuous control based teleoperationarchitecture with “Speed Limit Module” (SLM) and “Delay Approximator” (DA) isproposed. This direct continuous control architecture guarantees the path error of therobot motion is restricted within the path error tolerance of the application.Experiment results show the feasibili

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Minozzo, Felipe. "Equilíbrio de força muscular e retardo eletromecânico na articulação do ombro entre atletas de diferentes modalidades esportivas." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2017. http://hdl.handle.net/10183/172501.

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O objetivo deste estudo foi avaliar e comparar o equilíbrio de força muscular e o tempo de retardo eletromecânico na articulação do ombro entre atletas de diferentes modalidades esportivas, os quais utilizam predominantemente rotações internas e externas de ombro durante as suas práticas esportivas. Fizeram parte do estudo 41 sujeitos do sexo masculino, sendo 15 atletas profissionais de Voleibol (24,07 ± 5,13 anos; 91,60 ± 11,67 kg; 198,47 ± 5,90 cm), 14 atletas profissionais de Judô (26,64 ± 7,30 anos; 87,36 ± 15,20 kg; 178,07 ± 6,90 cm) e 12 atletas universitários de Handebol (23,17 ± 4,70 a

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Alghamdi, Turki A. "Novel localised quality of service routing algorithms : performance evaluation of some new localised quality of service routing algorithms based on bandwidth and delay as the metrics for candidate path selection." Thesis, University of Bradford, 2010. http://hdl.handle.net/10454/5420.

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The growing demand on the variety of internet applications requires management of large scale networks by efficient Quality of Service (QoS) routing, which considerably contributes to the QoS architecture. The biggest contemporary drawback in the maintenance and distribution of the global state is the increase in communication overheads. Unbalancing in the network, due to the frequent use of the links assigned to the shortest path retaining most of the network loads is regarded as a major problem for best effort service. Localised QoS routing, where the source nodes use statistics collected lo

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Zguira, Bahri Yosra. "Study and development of wireless sensor network architecture tolerant to delays." Thesis, Lyon, 2018. http://www.theses.fr/2018LYSEI121/document.

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Le transport est devenu fondamental dans les villes pour le bon fonctionnement de l'économie et le bien-être de la population urbaine. Depuis plusieurs années, le transport est confronté à de nombreux problèmes tels que l'embouteillage, le taux élevé d'accidents, la vie malsaine due à la fumée et à la poussière, la pollution atmosphérique due aux émissions de carbone, etc. Pour faire face à ces problèmes, les recherches intègrent les technologies numériques au transport terrestre, connu sous le nom de système de transport intelligent (ITS). Les ITS peuvent détecter, analyser, collecter, contrô

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CARLINI, ALESSANDRO. "Prédire le passé et le futur: rôle des représentations motrices dans l'inference du mouvement." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2012. http://hdl.handle.net/10281/42015.

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The effectiveness of the visual system is permitted by a complex processing network, which relies on cortical, sub-cortical and peripheral structures. The purpose of this research is to improve the knowledge of the process sustaining the visual perception of motion, and to produce a computational model able to reproduce the features of human visual tracking of a moving object. This work includes an extensive bibliographic research, and a series of experiments. The thesis consists of two parts: The first part pertains to the determination of performance in the "backward" inference of a parti

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Bai, Kang Jun. "Moving Toward Intelligence: A Hybrid Neural Computing Architecture for Machine Intelligence Applications." Diss., Virginia Tech, 2021. http://hdl.handle.net/10919/103711.

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Rapid advances in machine learning have made information analysis more efficient than ever before. However, to extract valuable information from trillion bytes of data for learning and decision-making, general-purpose computing systems or cloud infrastructures are often deployed to train a large-scale neural network, resulting in a colossal amount of resources in use while themselves exposing other significant security issues. Among potential approaches, the neuromorphic architecture, which is not only amenable to low-cost implementation, but can also deployed with in-memory computing strategy

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Bodisco, Timothy Alexis. "In-cylinder pressure and inter-cycle variability analysis for a compression ignition engine : Bayesian approaches." Thesis, Queensland University of Technology, 2013. https://eprints.qut.edu.au/62064/11/Timothy_Bodisco_Thesis.pdf.

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This thesis introduced Bayesian statistics as an analysis technique to isolate resonant frequency information in in-cylinder pressure signals taken from internal combustion engines. Applications of these techniques are relevant to engine design (performance and noise), energy conservation (fuel consumption) and alternative fuel evaluation. The use of Bayesian statistics, over traditional techniques, allowed for a more in-depth investigation into previously difficult to isolate engine parameters on a cycle-by-cycle basis. Specifically, these techniques facilitated the determination of the start

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Peraza, Ávila Jesús Enrique. "Experimental study of the diesel spray behavior during the jet-wall interaction at high pressure and high temperature conditions." Doctoral thesis, Universitat Politècnica de València, 2020. http://hdl.handle.net/10251/149389.

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[EN] The potential of diesel engines in terms of robustness, efficiency and energy density has made them widely used as power generators and propulsion systems. Specifically, fuel atomization, vaporization and air-fuel mixing, have a fundamental effect on the combustion process, and consequently, a direct impact on pollutant formation, fuel consumption and noise emission. Since the combustion chamber has a limited space respect to the spray penetration, wall impingement is considered to be a common event in direct injection diesel engines, having a relevant influence in the spray evolution and

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Aldosari, Fahd M. "New quality of service routing algorithms based on local state information : the development and performance evaluation of new bandwidth-constrained and delay-constrained quality of service routing algorithms based on localized routing strategies." Thesis, University of Bradford, 2011. http://hdl.handle.net/10454/5406.

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The exponential growth of Internet applications has created new challenges for the control and administration of large-scale networks, which consist of heterogeneous elements under dynamically changing traffic conditions. These emerging applications need guaranteed service levels, beyond those supported by best-effort networks, to deliver the intended services to the end user. Several models have been proposed for a Quality of Service (QoS) framework that can provide the means to transport these services. It is desirable to find efficient routing strategies that can meet the strict routing req

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Jansson, J. P. (Jussi-Pekka). "A stabilized multi-channel CMOS time-to-digital converter based on a low frequency reference." Doctoral thesis, Oulun yliopisto, 2012. http://urn.fi/urn:isbn:9789514299322.

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Abstract The aim of this work was to improve the performance and usability of a digital time-to-digital converter (TDC) in CMOS technology. The characteristics of the TDC were improved especially for the needs of pulsed laser time-of-flight (TOF) distance measurement, where picosecond-level precision with a long µs-level measurement range is needed in order to approach mm-level measurement accuracy. Stability in the face of process, voltage and temperature variations, multiple measurement channels, alternative measurement modes, a high integration level, standard interfaces and simple usage we

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Yang, Ming. "When Decision Meets Estimation: Theory and Applications." ScholarWorks@UNO, 2007. http://scholarworks.uno.edu/td/627.

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In many practical problems, both decision and estimation are involved. This dissertation intends to study the relationship between decision and estimation in these problems, so that more accurate inference methods can be developed. Hybrid estimation is an important formulation that deals with state estimation and model structure identification simultaneously. Multiple-model (MM) methods are the most widelyused tool for hybrid estimation. A novel approach to predict the Internet end-to-end delay using MM methods is proposed. Based on preliminary analysis of the collected end-to-end delay

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Xu, Zhibing. "Statistical Modeling and Predictions Based on Field Data and Dynamic Covariates." Diss., Virginia Tech, 2014. http://hdl.handle.net/10919/51130.

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Reliability analysis plays an important role in keeping manufacturers in a competitive position. It can be applied in many areas such as warranty predictions, maintenance scheduling, spare parts provisioning, and risk assessment. This dissertation focuses on statistical modeling and predictions based on lifetime data, degradation data, and recurrent event data. The datasets used in this dissertation come from the field, and have complicated structures. The dissertation consists of three main chapters, in addition to Chapter 1 which is the introduction chapter, and Chapter 5 which is the genera

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Baccelli, Emmanuel. "IP-Disruptive Wireless Networking: Integration in the Internet." Habilitation à diriger des recherches, Université Pierre et Marie Curie - Paris VI, 2012. http://tel.archives-ouvertes.fr/tel-00770791.

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The super collision between the Internet phenomenon and the wireless communication revolution gives birth to a wealth of novel research problems, design challenges and standardization activities. Within this domain, spontaneous wireless IP networking are probably the most extreme example of new ''particles'' born from the collision. Indeed, these particles defy the laws of the Internet in many ways. The absorption of such peculiar particles in the global IP network has already started thanks to pioneering algorithmic and protocol work -- for instance OLSR -- and through the deployment of wirel

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Arslan, Mehmet Selcuk. "Improving Performance Of A Remote Robotic Teleoperation Over The Internet." Master's thesis, METU, 2005. http://etd.lib.metu.edu.tr/upload/12606475/index.pdf.

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In this thesis study, it is aimed to improve the performance of an Internet-based teleoperation system enabling the remote operation of a 6 DOF industrial robot. In order to improve the safety and efficiency of the teleoperation, stability and synchronization (hand-eye coordination) are considered. The selected communication medium between the human operator and remote robot is the Internet. The variable time delays and nondeterministic characteristics of the Internet may lead to instability of the teleoperation system. Considering the disturbing effects of the Internet onto the transmission,

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Björklund, Erik. "Early Risk Stratification, Treatment and Outcome in ST-elevation Myocardial Infarction." Doctoral thesis, Uppsala University, Department of Medical Sciences, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-6050.

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<p>We evaluated, in patients with ST-elevation myocardial infarction (STEMI) treated with thrombolytics, admission Troponin T (tnT), ST-segment resolution and admission N-terminal pro-brain natriuretic peptide (NT-proBNP) for early risk stratification as well as time delays and outcome in real life patients according to prehospital or in-hospital thrombolytic treatment. Also, baseline characteristics, treatments and outcome in patients enrolled in the ASSENT-2 trial in Sweden and in patients not enrolled were evaluated. </p><p>TnT (n=881) and NT-proBNP (n=782) on admission and ST-resolution a

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Carlini, Alessandro. "Prédire le passé et le futur : rôle des représentations motrices dans l'inférence du mouvement." Phd thesis, Université de Bourgogne, 2012. http://tel.archives-ouvertes.fr/tel-00834893.

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L'efficacité du système visuel est permise par un complexe réseau d'élaboration, qui s'appuie sur des structures corticales, sous-corticales et périphériques. Le but de la présente recherche est de mieux comprendre le processus de perception visuelle du mouvement, et réaliser un modèle computationnel capable de reproduire les fonctionnalités humaines du tracking (suivi) d'un objet en mouvement. Ce travail de thèse comprend une ample recherche bibliographique, ainsi qu'une série d'expérimentations ; la thèse se compose de deux parties :La première partie a pour objet la détermination des perfor

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Kharkovskaia, Tatiana. "Conception d'observateurs par intervalle pour les systèmes à paramètres distribués avec incertitudes." Thesis, Ecole centrale de Lille, 2019. http://www.theses.fr/2019ECLI0019.

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Ce travail présente de nouveaux résultats sur l'estimation d'état par intervalle pour des systèmes distribués incertains, qui sont des systèmes de dimension infinie : leur état, fonctionnel, est régi par des équations aux dérivées partielles (EDP) ou fonctionnelles (EDF). Le principe de l'observation par intervalle est d’estimer à chaque instant un ensemble de valeurs admissibles pour l'état (un intervalle), de manière cohérente avec la sortie mesurée. Les chapitres 2 et 3 se concentrent sur la conception d'observateurs par intervalle pour une EDP parabolique avec des conditions aux limites de

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Sims, Zack A. "Deployment, Management, & Operations of Internet Routers for Space-Based Communication." Ohio University / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1429033241.

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