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Thematische Bibliographien / Mesh layer / Dissertationen

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Dissertationen zum Thema „Mesh layer“

Autor: Grafiati

Veröffentlicht am 7. Juni 2025

Zuletzt aktualisiert am 2. August 2025

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1

Panmin, Ye, and Yong. "Distributed Cross-layer Monitoring in Wireless Mesh Networks." Thesis, Karlstad University, Karlstad University, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-4615.

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Ye, Panming, and Yong Zhou. "Distributed Cross-layer Monitoring in Wireless Mesh Networks." Thesis, Karlstad University, Karlstad University, Karlstad University, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-4617.

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<p>Wireless mesh networks has rapid development over the last few years. However, due to properties such as distributed infrastructure and interference, which strongly affect the performance of wireless mesh networks, developing technology has to face the challenge of architecture and protocol design issues. Traditional layered protocols do not function efficiently in multi-hop wireless environments. To get deeper understanding on interaction of the layered protocols and optimize the performance of wireless mesh network, more recent researches are focusing on cross-layer measurement schemes an

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Mbayi, Charles K. "Efficient Variable Mesh Techniques to solve Interior Layer Problems." University of Western Cape, 2020. http://hdl.handle.net/11394/7324.

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Philosophiae Doctor - PhD<br>Singularly perturbed problems have been studied extensively over the past few years from different perspectives. The recent research has focussed on the problems whose solutions possess interior layers. These interior layers appear in the interior of the domain, location of which is difficult to determine a-priori and hence making it difficult to investigate these problems analytically. This explains the need for approximation methods to gain some insight into the behaviour of the solution of such problems. Keeping this in mind, in this thesis we would like

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Dely, Peter. "Cross-Layer Optimization of Voice over IP in Wireless Mesh Networks." Licentiate thesis, Karlstads universitet, Avdelningen för datavetenskap, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-6280.

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Wireless Mesh Networks (WMNs) have emerged as a promising network technology, which combines the benefits of cellular networks and Wireless Local Area Networks (WLANs). In a WMN mesh routers wirelessly relay traffic on behalf of other mesh routers or clients and thereby provide coverage areas comparable to cellular networks, while having the low complexity and low costs of WLANs. As Voice over IP (VoIP) is a very important Internet service, it is critical for the success of WMNs to support high quality VoIP. However, currentWMNs are not adapted well for VoIP. The capacity and scalability of si

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Porsch, Marco. "Layer 2 Path Selection Protocol for Wireless Mesh Networks with Smart Antennas." Master's thesis, Universitätsbibliothek Chemnitz, 2011. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-74743.

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In this thesis the possibilities of smart antenna systems in wireless mesh networks are examined. With respect to the individual smart antenna tradeoffs, a routing protocol (Modified HWMP, MHWMP) for IEEE 802.11s mesh networks is presented, that exploits the full range of benefits provided by smart antennas: MHWMP actively switches between the PHY-layer transmission/reception modes (multiplexing, beamforming and diversity) according to the wireless channel conditions. Spatial multiplexing and beamforming are used for unicast data transmissions, while antenna diversity is employed for efficient

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Fahim, Rezaei Hamid. "Mesh-Bus, a double-layer coded, time-transparent digital distributed single-wire bus." Diss., University of Iowa, 2014. https://ir.uiowa.edu/etd/4626.

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Medium access mechanisms are one of the most important aspects of buses, which are shared mediums. Almost all standard buses use Time Division Multiple Access (TDMA) as their medium access scheme. Such buses usually are multi-wire, very sensitive to time synchronization, and often managed by a master node. In this thesis, we develop new non-TDMA schemes for bus communications which are based on Code Division Multiple Access (CDMA), or Frequency Division Multiple Access (FDMA) that do not have the intrinsic limitations of traditional buses. The proposed schemes are based on a single wire bus se

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RAMLI, MUHAMMAD. "NUMERICAL MODELING OF GROUNDWATER FLOW IN MULTI-LAYER AQUIFERS AT COASTAL ENVIRONMENT." 京都大学 (Kyoto University), 2009. http://hdl.handle.net/2433/77971.

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Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(工学)<br>甲第14599号<br>工博第3067号<br>新制||工||1456(附属図書館)<br>26951<br>UT51-2009-D311<br>京都大学大学院工学研究科都市環境工学専攻<br>(主査)教授大西有三, 教授間瀬肇, 准教授西山哲<br>学位規則第4条第1項該当

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Ekman, Petter. "A Sensitivity Study of Some Numerical and Geometrical Parameters Affecting Lift." Thesis, Linköpings universitet, Mekanisk värmeteori och strömningslära, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-124197.

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Volvo Car Corporation (VCC) uses Computational Fluid Dynamics (CFD) and wind tunnel during the aerodynamic development of new vehicles. In the past VCC main focus has been on the drag force correlation to the wind tunnel measurements but in recent years improved methods for lift force correlations has been highly wanted. Three objectives were considered in this study to improve the lift force correlation between the CFD simulations and wind tunnel measurements for geometrical configurations of the V60 and S60 models.Poor mesh resolution for the wall bounded flow existed for the VCC mesh method

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Amusa, Ebenezer Olukayode. "An enhanced cross-layer routing protocol for wireless mesh networks based on received signal strength." Thesis, University of Bedfordshire, 2010. http://hdl.handle.net/10547/143534.

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The research work presents an enhanced cross-layer routing solution for Wireless Mesh Networks (WMN) based on Received Signal Strength. WMN is an emerging technology with varied applications due to inherent advantages ranging from self-organisation to auto-con guration. Routing in WMN is fundamen- tally achieved by hop counts which have been proven to be de cient in terms of network performance. The realistic need to enhance the link quality metric to improve network performance has been a growing concern in recent times. The cross-Layer routing approach is one of the identi ed methods of impr

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Skalli, Habiba. "Channel assignment, routing and cross layer issues for multi-radio multi-channel wireless mesh netorks." Thesis, IMT Alti Studi Lucca, 2009. http://e-theses.imtlucca.it/16/1/Skalli_phdtheis.pdf.

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Next generation wireless mobile communications will be driven by converged networks that integrate disparate technologies and services. The Wireless Mesh Network (WMN) is envisaged to be one of the key components in the converged networks of the future, providing flexible, high-bandwidth wireless backhaul over large geographical areas. While single radio mesh nodes, operating on a single channel suffer from capacity constraints, equipping mesh routers with multiple radios using multiple non-overlapping channels can significantly alleviate the capacity problem and increase the aggregate bandwi

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ORDINE, ALESSANDRO. "Multi-layer traffic control for wireless networks." Doctoral thesis, Università degli Studi di Roma "Tor Vergata", 2008. http://hdl.handle.net/2108/526.

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Le reti Wireless LAN, così come definite dallo standard IEEE 802.11, garantiscono connettività senza fili nei cosiddetti “hot-spot” (aeroporti, hotel, etc.), nei campus universitari, nelle intranet aziendali e nelle abitazioni. In tali scenari, le WLAN sono denotate come “ad infrastruttura” nel senso che la copertura della rete è basata sulla presenza di un “Access Point” che fornisce alle stazioni mobili l’accesso alla rete cablata. Esiste un ulteriore approccio (chiamato “ad-hoc”) in cui le stazioni mobili appartenenti alla WLAN comunicano tra di loro senza l’ausilio dell’Access Point. Le W

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Robles, Rico Pedro Francisco. "Investigation of IEEE standard 802.16 Medium Access." Thesis, Linköping University, Department of Electrical Engineering, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-7020.

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<p>This paper is a study of IEEE Standard 802.16 Medium Access Control (MAC) Layer in Distributed Mesh Networks. IEEE Standard 802.16 is a Wireless Metropolitan Area Network (WMAN) technology that can connect different IEEE 802.11 (Wifi) host post with each other and to other parts of internet. It can provide network for a wireless router and at the same time this router can be installed in the office, house or university.</p><p>WiMAX (Worldwide Interoperability for Microwave Access) is a certification mark for products that pass conformity and interoperability tests for the IEEE 802.16 standa

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Watterson, John Kenneth. "A new, pressure-based, unstructured mesh, Navier-Stokes solver and application to 3D compressible vortex/boundary layer interactions." Thesis, University of Cambridge, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.337910.

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Muogilim, Okechukwu Emmanuel. "Traffic engineering multi-layer optimization for wireless mesh network transmission : a campus network routing protocol transmission performance enhancement." Thesis, Brunel University, 2011. http://bura.brunel.ac.uk/handle/2438/10073.

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The wireless mesh network is a potential network for the future due to its excellent inherent characteristic for dynamic self-healing, self-configuration and self-organization. It also has the advantage of easy interoperability networking and the ability to form multi-linked ad-hoc networks. It has a decentralized topology, is cheap and highly scalable. Furthermore, its ease in deployment and easy maintenance are other inherent networking qualities. These aforementioned qualities of the wireless mesh network bring advantages to transmission capability of heterogeneous networks. However, transm

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Karlsson, Jonas. "Transport-Layer Performance in Wireless Multi-Hop Networks." Doctoral thesis, Karlstads universitet, Institutionen för matematik och datavetenskap, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-15603.

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Wireless communication has seen a tremendous growth in the last decades. Continuing on this trend, wireless multi-hop networks are nowadays used or planned for use in a multitude of contexts, spanning from Internet access at home to emergency situations. The Transmission Control Protocol (TCP) provides reliable and ordered delivery of a data and is used by major Internet applications such as web browsers, email clients and file transfer programs. TCP traffic is also the dominating traffic type on the Internet. However, TCP performs less than optimal in wireless multi-hop networks due to packe

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Bertholds, Alexander. "CFD Simulations of the New University of Sydney Boundary Layer Wind Tunnel." Thesis, Uppsala universitet, Institutionen för teknikvetenskaper, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-166945.

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Using Computational Fluid Dynamics Simulations, the flow in the new University of Sydney closed circuit wind tunnel has been analyzed prior to the construction of the tunnel. The objective was to obtain a uniform flow in the test section of the wind tunnel while keeping the pressure losses over the tunnel as low as possible. This was achieved by using several flow-improving components such as guide vanes, screens, a honeycomb and a settling chamber. The guide vanes were used in the corners and in the diverging part leading into the settling chamber, giving a significant improvement of the flow

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Kurth, Mathias. "Contention techniques for opportunistic communication in wireless mesh networks." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät II, 2012. http://dx.doi.org/10.18452/16458.

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Auf dem Gebiet der drahtlosen Kommunikation und insbesondere auf den tieferen Netzwerkschichten sind gewaltige Fortschritte zu verzeichnen. Innovative Konzepte und Technologien auf der physikalischen Schicht (PHY) gehen dabei zeitnah in zelluläre Netze ein. Drahtlose Maschennetzwerke (WMNs) können mit diesem Innovationstempo nicht mithalten. Die Mehrnutzer-Kommunikation ist ein Grundpfeiler vieler angewandter PHY Technologien, die sich in WMNs nur ungenügend auf die etablierte Schichtenarchitektur abbilden lässt. Insbesondere ist das Problem des Scheduling in WMNs inhärent komplex. Erstaunlic

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Gaytan, Guillen Sara Marisela. "Additive layer manufacturing of TI-6AL-4V by electron beam melting from powder particles solid, mesh and foam components study /." To access this resource online via ProQuest Dissertations and Theses @ UTEP, 2009. http://0-proquest.umi.com.lib.utep.edu/login?COPT=REJTPTU0YmImSU5UPTAmVkVSPTI=&clientId=2515.

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Goran, Radojev. "Kolokacioni postupci za rešavanje singularno perturbovanih problema." Phd thesis, Univerzitet u Novom Sadu, Prirodno-matematički fakultet u Novom Sadu, 2015. https://www.cris.uns.ac.rs/record.jsf?recordId=96047&source=NDLTD&language=en.

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U disertaciji su razvijeni kolokacioni postupci sa C<sup>1</sup>- splajnovima proizvoljnog stepena za re&scaron;avanje singularno-perturbovanih problema reakcije-difuzije u jednoj i dve dimenzije. U 1D, pokazano je da kolokacioni postupak sa kvadratnim C<sup>1</sup>- splajnom na modifikovanoj &Scaron;i&scaron;kinovoj mreži, konvergira uniformno, sa redom konvergencije skoro dva. Takođe, na gradiranim mrežama, ovaj metod ima red konvergencije dva – uniformno do na logaritamski faktor. Aposterirona ocena je postignuta za kolokacione postupke sa C<sup>1</sup>- splaj

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Roos, Hans-Görg, and Martin Schopf. "Layer structure and the galerkin finite element method for a system of weakly coupled singularly perturbed convection-diffusion equations with multiple scales." Cambridge University Press, 2015. https://tud.qucosa.de/id/qucosa%3A39046.

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We consider a system of weakly coupled singularly perturbed convection-diffusion equations with multiple scales. Based on sharp estimates for first order derivatives, Linß [T. Linß, Computing 79 (2007) 23–32.] analyzed the upwind finite-difference method on a Shishkin mesh. We derive such sharp bounds for second order derivatives which show that the coupling generates additional weak layers. Finally, we prove the first robust convergence result for the Galerkin finite element method for this class of problems on modified Shishkin meshes introducing a mesh grading to cope with the weak layers.

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Houaidia, Chiraz. "Vers des mécanismes de routage robustes et optimisés pour un réseau sans fil métropolitain et collaboratif." Thesis, Toulouse 2, 2016. http://www.theses.fr/2016TOU20029.

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Les réseaux sans fil maillés offrent une infrastructure pour interconnecter les stations d’accès de réseaux de différentes technologies. Ils disposent d’une topologie maillée où tous les routeurs sont connectés de proche en proche sans hiérarchie centrale. Le routage des données, dans ce type de réseaux, doit être réalisé tout en optimisant les ressources du réseau et en respectant au mieux les exigences de QoS des utilisateurs. Dans cette thèse, nous proposons un routage orienté qualité de service dans un réseau sans fil métropolitain grâce à une approche de type cross-layer. Nous avons comme

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Bugajev, Andrej. "Adaptyvieji algoritmai elipsiniams uždaviniams." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2011. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2011~D_20110614_104404-19952.

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Pagrindinis šio darbo tikslas - sudaryti efektyvius skaitinius algoritmus elipsinio tipo uždaviniams spręsti. Galiorkino metodu sprendžiami du uždaviniai: vienmatis pasienio sluoksnio uždavinys ir dvimatis elipsinis uždavinys su L formos geometrijos sritimi. Algoritmų efektyvumui gerinti naudojami adaptyvieji tinklai, sudaryti remiantis aposterioriniais įverčiais. Darbe parodyta kaip iš dualiųjų įverčių teorijos gauti Bakhvalovo tinklą. Taip pat parodytas Šiškino tinklo ryšys su Bakhvalovo tinklu. Iš aposteriorinių įverčių teorijos gautos σ parametro (jis naudojamas Bakhvalovo ir Šiškino tinkl

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Buck, Randall Jay. "WiFu Transport: A User-level Protocol Framework." BYU ScholarsArchive, 2012. https://scholarsarchive.byu.edu/etd/2959.

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It is well known that the transport layer protocol TCP has low throughput and is unfair in wireless mesh networks. Transport layer solutions for mesh networks have been primarily validated using simulations with simplified assumptions about the wireless network. The WiFu Transport framework complements simulator results by allowing developers to easily create and experiment with transport layer protocols on live networks. We provide a user-space solution that is flexible and promotes code reuse while maintaining high performance and scalability. To validate WiFu Transport we use it to build Wi

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Arce, Vila Pau. "Hierarchical routing and cross-layer mechanisms for improving video streaming quality of service over mobile wireless ad hoc networks." Doctoral thesis, Editorial Universitat Politècnica de València, 2014. http://hdl.handle.net/10251/36538.

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This thesis dissertation addresses the problem of providing video streaming services over mobile wireless ad hoc networks. This sort of network represents a hostile environment for this kind of realtime data transmission to the extent that obtaining a good quality of viewer experience is challenging and still under study. Besides the research point of view, providing high-quality multimedia services is decisive for the practical usability and feasibility of wireless ad hoc networks so that service providers can broaden the range of services offered. So far, mobile wireless ad hoc networks

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Kurth, Mathias [Verfasser], Jens-Peter [Akademischer Betreuer] Redlich, Adam [Akademischer Betreuer] Wolisz, and Mesut [Akademischer Betreuer] Güne¸s. "Contention techniques for opportunistic communication in wireless mesh networks : a cross-layer perspective on opportunistic routing and opportunistic scheduling under carrier sensing multiple access / Mathias Kurth. Gutachter: Jens-Peter Redlich ; Adam Wolisz ; Mesut Güne¸s." Berlin : Humboldt Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät II, 2012. http://d-nb.info/1019790008/34.

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Billon, Laure. "Génération et adaptation de maillage volume-couche limite dynamique pour les écoulements turbulents autour de géométries complexes." Thesis, Paris Sciences et Lettres (ComUE), 2016. http://www.theses.fr/2016PSLEM077/document.

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La simulation numérique des écoulements turbulents en aérodynamique est très complexe. Elle consiste en l'étude de l'interaction entre un fluide et un profilimmergé. On observe à la surface du profil une zone de vitesse ralentie, nommée couche limite. L'étude fine de la couche limite est primordiale pour la résolution précise de l'écoulement. Elle nécessite de ce fait un maillage particulièrement fin et structuré. Nous proposons une procédure automatique permettant de générer un maillage adapté pour la résolution précise de la couche limite en accord avec la théorie et les caractéristiques phy

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Páleš, Patrik. "Rotace kola ve výpočtech externí aerodynamiky." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-231736.

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The aim of the master’s thesis is an investigation of volume mesh quality, turbulent models and models of rotation and their influence on aerodynamic coefficients of rotating wheels. Mesh independence study and near-wall prism layer modelling are also of high importance. Subsequently, the appropriate turbulent model is used for research of wheel rotation on drag and lift on a front and rear axle of the vehicle compared to the stationary case.

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Taileb, Saïd. "Vers des simulations numériques prédictives des détonations gazeuses : influence de la cinétique chimique, de l’equation d’etat et des effets tridimensionnels Influence of the chemical modeling on the quenching limits of gaseous detonation waves confined by an inert layer Computation of the mean hydrodynamic structure of gaseous detonations with losses Numerical study of 3D gaseous detonations in a square channel." Thesis, Chasseneuil-du-Poitou, Ecole nationale supérieure de mécanique et d'aérotechnique, 2020. http://www.theses.fr/2020ESMA0012.

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La présente étude s’inscrit dans le cadre général des simulations numériques des détonations dans des conditions non-idéales. Les configurations abordées correspondent à des écoulements rencontrés dans les accidents industriels ainsi que dans les moteurs à détonation rotative, dans lequel le combustible est injecté à des pressions élevées dans un milieu confiné par des gaz inertes. Les simulations conduites reposent sur un code de simulation numérique RESIDENT (REcycling mesh SImulation of DEtonations) développé à l’Institut Pprime. Il s’appuie sur des schémas numériques d’ordre élevé adaptés

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Hauge, John Hutcheson Drew Scott Paul. "Boundary layer data system (BLDS) heating system : final project report /." Click here to view, 2009. http://digitalcommons.calpoly.edu/mesp/2/.

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Mráz, Kryštof. "Výpočtové modelování přenosu tepla v porézních strukturách." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-432645.

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Vrstva okují, skládající se z oxidů železa, která se tvoří na povrchu oceli při jejím tepelném zpracování, má velký vliv na tepelné metalurgické procesy. Tepelná vodivost okují je jeden z klíčových parametrů pro numerické modelování procesů odkujování a chlazení oceli. Tato vodivost je nicméně silně ovlivňována porézní strukturou okují a žádná všeobecně uznávaná materiálová data nejsou v současnosti dostupná. Cílem této práce bylo provést stacionární tepelnou analýzu za účelem stanovení tepelné vodivosti vrstvy okují. Byl vytvořen podrobný 3D MKP model vrstvy okují založený na datech získaných

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Stragier, Anne-Sophie. "Elaboration et caractérisation de structures Silicium-sur-Isolant réalisées par la technologie Smart Cut™ avec une couche fragile enterrée en silicium poreux." Thesis, Lyon, INSA, 2011. http://www.theses.fr/2011ISAL0108.

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Au vu des limitations rencontrées par la miniaturisation des circuits microélectroniques, l’augmentation de performances des systèmes repose largement aujourd’hui sur la fabrication d’empilements de couches minces complexes et innovants pour offrir davantage de compacité et de flexibilité. L’intérêt grandissant pour la réalisation de structures innovantes temporaires, i.e. permettant de réaliser des circuits sur les deux faces d’un même film, nous a mené à évaluer les potentialités d’une technologie combinant le transfert de films minces monocristallins, i.e. la technologie Smart Cut™, et un p

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Wang, Xu-sheng. "Microbridge tests on multi-layer thin films /." View abstract or full-text, 2006. http://library.ust.hk/cgi/db/thesis.pl?MECH%202006%20WANGXS.

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Wang, Jinghong. "A study of smoldering combustion in horizontally oriented polyurethane foam layer /." View Abstract or Full-Text, 2002. http://library.ust.hk/cgi/db/thesis.pl?MECH%202002%20WANGJ.

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Thesis (Ph. D.)--Hong Kong University of Science and Technology, 2002.<br>Includes bibliographical references (leaves 154-166). Also available in electronic version. Access restricted to campus users.

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Schopf, Martin. "Error analysis of the Galerkin FEM in L 2 -based norms for problems with layers." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-143439.

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In the present thesis it is shown that the most natural choice for a norm for the analysis of the Galerkin FEM, namely the energy norm, fails to capture the boundary layer functions arising in certain reaction-diffusion problems. In view of a formal Definition such reaction-diffusion problems are not singularly perturbed with respect to the energy norm. This observation raises two questions: 1. Does the Galerkin finite element method on standard meshes yield satisfactory approximations for the reaction-diffusion problem with respect to the energy norm? 2. Is it possible to strengthen the ener

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Rojas, Eduardo A. "High Performance Digitally Manufactured Microwave and Millimeter-Wave Circuits and Antennas." Scholar Commons, 2017. http://scholarcommons.usf.edu/etd/6942.

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The potential of Additive Manufacturing (AM) for microwave and mm-wave applications is increasingly being revealed thanks to recent advancements in research. AM empowers engineers with new capabilities to manufacture complex conformal geometries quicker and at lower costs. It allows, for instance, the embedding of RF front ends into functional structures. In this dissertation, two aspects of AM are explored: (a) The development and characterization of techniques that improve the performance of AM microwave circuits and antennas, and (b) study of complex geometries, such as meshed structures, a

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Byambaakhuu, Tseelmaa. "Development of Advanced Numerical Methods for Solving Neutron Transport Problems: DG-DSA and the Shishkin Mesh for Problems with Sharp Layers." The Ohio State University, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=osu1618855174338701.

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Strantza, Georgia. "Applicazione di tecniche Laser a scansione nel rilevamento 3D di provini di conglomerato bituminoso." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2010. http://amslaurea.unibo.it/1094/.

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Obiettivo della tesi, oltre ad una descrizione della tecnica laser a scansione ed alla presentazione di alcune realizzazioni tipiche in ambito terrestre, è relazionare su una esperienza effettuata di recente su una applicazione particolare, il rilievo tridimensionale di campioni di pavimentazioni stradali in conglomerato bituminoso per documentarne la tessitura tramite parametri classici e nuovi indicatori resi possibili dal dato tridimensionale. L’attività di tesi si è concentrata soprattutto nei problemi della fase di acquisizione.

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Fidler, Tomáš. "Zatížení střechy vzdušným proudem vrtulníku při montážních pracích." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2013. http://www.nusl.cz/ntk/nusl-226473.

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Diploma thesis is focused on modeling rotor downwash generated by the main rotor of helicopter and analyzing its effects on the roof structure. Theoretical definition of rotor downwash flow is described in the first part of the text. Governing equations of computational fluid dynamics are briefly explained as well as boundary layer and finite volume method. Next part inquires into numerical simulation of rotor downwash based on height of rotor above the roof, shape of roof plane and climatic conditions. Results are compared with climatic load values provided by actual Czech construction standa

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El-Rawas, Claudia [Verfasser]. "Rekonstruktion segmentaler Knochendefekte durch mechanobiologisch modulierte, Laser-gesinterte Titan Mesh Scaffolds im Großtiermodell - Radiologische und histologische Evaluation im Schaf / Claudia El-Rawas." Berlin : Freie Universität Berlin, 2019. http://d-nb.info/1193491622/34.

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Dawson, Don Carleton University Dissertation Chemistry. "Laser-induced anisotropy and Raman intensities in meso-tetrakis(N- methyl-4-pyridyl)porphine, H2TMpyP(4) monomer." Ottawa, 1994.

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Silva, Ramon Miranda. "Propriedades de camadas ativas baseadas em perovskita, rubreno e polímero MEH-PPV com aplicação em células solares híbridas." Universidade Federal de Goiás, 2017. http://repositorio.bc.ufg.br/tede/handle/tede/7977.

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Submitted by Marlene Santos (marlene.bc.ufg@gmail.com) on 2017-11-17T16:56:43Z No. of bitstreams: 2 Dissertação - Ramon Miranda Silva - 2017.pdf: 4619433 bytes, checksum: a7833bb45829cb4df8c4216c408e70cf (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)<br>Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2017-11-20T10:13:17Z (GMT) No. of bitstreams: 2 Dissertação - Ramon Miranda Silva - 2017.pdf: 4619433 bytes, checksum: a7833bb45829cb4df8c4216c408e70cf (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)<br>Made ava

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Nyman, Jonas. "Faster Environment Modelling and Integration into Virtual Reality Simulations." Thesis, Högskolan i Skövde, Institutionen för ingenjörsvetenskap, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-19800.

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The use of virtual reality in engineering tasks, such as in virtual commissioning, has increased steadily in recent years, where a robot, machine or object of interest can be simulated and visualized. Yet, for a more immerse experience, an environment for the object in question needs to be constructed. However, the process for creatingan accurate environment, for a virtual simulation have remained a costly and a long endeavour. Because of this, many digital simulations are performed, either with no environment at all, or present a very basic and abstract representation of an intended environme

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Pulcini, Andrea. "Verifiche dimensionali e previsione della qualità di componenti meccanici realizzati mediante processo additivo." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2018. http://amslaurea.unibo.it/16471/.

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Il presente elaborato di tesi è frutto dell’attività di tirocinio svolta presso l’azienda modenese HPE COXA che opera nel settore dei servizi per l’ingegneria. Più nello specifico, lo svolgimento del tirocinio è avvenuto nel recente centro Metal Additive: centro di ricerca sull’Additive Manufacturing nato nell'ottobre 2017 e tuttora in fase di sviluppo. L’attività è svolta nell'ambito di simulazione del processo di Selective Laser Melting (SLM), tramite software commerciale Msc Simufact.Additive. Lo scopo dell’attività è stato quello di rendere la simulazione il più possibile in linea con il c

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Kroupa, Ondřej. "Digitální model reliéfu v areálu Admas." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2017. http://www.nusl.cz/ntk/nusl-390213.

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The goal of this thesis is to scan part of the complex research center AdMaS using terrestrial laser scanner, from obtained data draw up a 3D terrain model and compare the height accuracy with conventional terrestrial measurement. The thesis is focused to software, which allow processing of point clouds and prepare the 3D model. The output of this work is the 3D terrain model and two transverse profiles for vertical comparison of two measurement methods.

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Vitula, Marek. "Dokumentace části hradu Rokštejn pomocí laserového skenování." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2016. http://www.nusl.cz/ntk/nusl-390174.

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The goal of this thesis is to scan part of castle Rokštejn using terrestrial laser scanner and from obtained data draw up a 3D model. Model is made with a method using meshing. In this work I also deal with the software, which supports meshing, and evaluating pros and cons of each program. The output of this work is 3D model which will serve to better representation of the current state of the castle and its better documentation.

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Gozzi, Giovani. "Fabricação e caracterização de dispositivos poliméricos emissores de luz com camada ativa de poli(2-metóxi, 5-(2\'-etil-hexilóxi)-1,4-fenileno vinileno) (MEH-PPV)." Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/76/76132/tde-01042008-172012/.

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Dispositivos poliméricos emissores de luz (Polymer Light Emitting Diodes - PLEDs) têm sido amplamente investigados devido à sua possibilidade de aplicação na fabricação de telas de projeção e displays. As principais vantagens dos materiais poliméricos, nesses casos, são o baixo custo e a possibilidade de processamento em superfícies de grande área, ao contrário do que ocorre para dispositivos contendo cristais líquidos (Liquid Crystal Display - LCD\'s). Apesar de amplamente investigados nos últimos anos, alguns aspectos fundamentais acerca dos mecanismos de injeção de carga nos PLEDs ainda não

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Duine, Gert-Jan. "Caractérisation des vents de vallée en conditions stables à partir de la campagne de mesures KASCADE et de simulations WRF à méso-échelle." Thesis, Toulouse 3, 2015. http://www.theses.fr/2015TOU30258/document.

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Cette thèse est dédiée à la caractérisation des vents descendants de vallée en terrain complexe d'orographie modérée à moyenne latitude, dans le contexte de la réglementation des rejets atmosphériques de Cadarache. Cadarache est un des centres de recherche du "Commissariat à l'énergie atomique et aux énergies alternatives" (CEA), installé dans une petite vallée (CV) confluente à la vallée de la Durance (DV). Ces deux vallées se distinguent par leur taille, et sont le siège d'écoulements aux caractéristiques différentes en stratification stable. Un forçage synoptique faible associé à un ciel dé

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Emiliani, Elisabetta. "Rilievi digitali e modelli 3D per la documentazione, l'analisi e il progetto di Palazzo Besta de' Gatti a Chiuro (So). Applicazioni ed esempi per il riuso come struttura ricettiva." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amslaurea.unibo.it/19126/.

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La tesi si basa sul rilievo digitale di Casa Besta De’ Gatti di Chiuro (SO) e sperimenta, mettendole a punto, alcune fra le possibili applicazioni del rilievo stesso e dei modelli tridimensionali che a partire da esso si costruiscono. Il rilievo è stato eseguito tramite laser scanner integrato da applicazioni di fotogrammetria digitale, procedura che consente di ottenere risultati più precisi e veloci rispetto alle tecniche tradizionali. Casa Besta De’ Gatti sorge su una dimora fortificata di origine medievale, con successive fondamentali modifiche fra i secoli XV e XVIII e numerosi rimanegg

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Jézéquel, Erwan. "Simulations of wind turbine wakes in realistic atmospheric conditions : from large eddy simulations to analytical models." Electronic Thesis or Diss., Toulouse, INPT, 2022. http://www.theses.fr/2022INPT0068.

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Les éoliennes sont souvent regroupées en parcs où elles sont sujettes aux sillages des rotors en amont. Les sillages d’éoliennes sont des régions où la vitesse du vent est réduite et la turbulence (les variations de vent) est augmentée, ce qui induit respectivement une baisse de la production et de la durée de vie du parc, résultant au final en un coût de l'électricité plus élevé.La disposition des parcs doit donc être optimisée en prenant les sillages en compte pour rendre leur production plus efficace. Comme les études d'optimisation demandent d'étudier de nombreux cas, les modèles analytiqu

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Hochstetter, Sarah. "Rilievi digitali e modelli 3D per la documentazione, l'analisi e il progetto di Palazzo Besta de' Gatti a Chiuro (So). Applicazioni ed esempi per il riuso come cantina vinicola." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amslaurea.unibo.it/19125/.

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Il rilievo ha come fine ultimo quello di riprodurre l’oggetto studiato attraverso la rappresentazione grafica e costituisce la base per sviluppi, analisi e studi successivi. La rappresentazione, infatti, è il veicolo di comunicazione per eccellenza. Il modello digitale, frutto dell’operazione di rilievo, ha la funzione di presentare in forma solida tridimensionale quelle caratteristiche che nella loro rappresentazione bidimensionale non sempre risultano di chiara interpretazione da parte dei fruitori generici. In questo contesto si inserisce il rilievo tramite la tecnologia laser scanner del

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