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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
131

Reconfigurable Logic Architectures based on Disruptive Technologies / Architectures logiques reconfigurables utilisant les propriétés de l'électronique moléculaire

Gaillardon, Pierre-Emmanuel 15 September 2011 (has links)
Durant les quatre dernières décennies, l’industrie des semi-conducteurs a connu une croissance exponentielle. En accord avec l’ITRS et à mesure de l'approche vers le nanomètre, les promesses sont énormes et les composants sont réduits à leurs limites physiques et économiques ultimes. L’objectif principal de cette thèse est d’explorer les opportunités offertes par les technologies émergentes pour la conception d’architectures reconfigurables. Tout d’abord, la thèse se centre sur l’architecture FPGA traditionnelle et étudie des améliorations structurelles apportées par des technologies en ruptures. Tandis que les structures de configuration et de routage occupent la majeure partie de la surface d’un FPGA et limitent ces performances, l’intégration 3-D apparait comme une bonne opportunité pour déplacer ces circuits dans les niveaux métalliques. Des circuits de configuration et de routage utilisant des mémoires résistives compatibles back-end, un procédé d’intégration 3-D ou encore un procédé de réalisation de transistors verticaux seront introduits et évalués dans un contexte architectural complet. Par la suite, la thèse présente de nouvelles propositions architecturales pour la logique à grain ultra-fin. La taille des éléments logiques peut être réduite grâce aux propriétés inhérentes de certaines technologies, telles que l’arrangement en structures entrecroisées de nanofils ou la polarité contrôlable des transistors carbones. Considérant le changement de granularité des opérateurs logiques, des topologies d’interconnexions fixes sont nécessaires afin d’éviter l’important surcoût dû à l’interconnexion programmable. Afin d’étudier les possibilités de cette organisation, un flot d’évaluation est présenté et utilisé pour explorer l’espace de conception relatif aux architectures à grain ultra-fin. / For the last four decades, the semiconductor industry has experienced an exponential growth. According to the ITRS, as we advance into the era of nanotechnology, the traditional CMOS electronics is reaching its physical and economical limits. The main objective of this thesis is to explore novel design opportunities for reconfigurable architectures given by the emerging technologies. On the one hand, the thesis will focus on the traditional FPGA architecture scheme, and survey some structural improvements brought by disruptive technologies. While the memories and routing structures occupy the major part of the FPGAs total area and mainly limit the performances, 3-D integration appears as a good candidate to embed all this circuitry into the metal layers. Configuration and routing circuits based on back-end compatible resistive memories, a monolithic 3-D process flow and a prospective vertical FETs process flow are introduced and assessed within a complete architectural context. On the other hand, the thesis will present some novel architectural schemes for ultra-fine grain computing. The size of the logic elements can be reduced thanks to inherent properties of the technologies, such as the crossbar organization or the controllable polarity of carbon electronics. Considering the granularity of the logic elements, specific fixed and incomplete interconnection topologies are required to prevent the large overhead of a configurable interconnection pattern. To evaluate the potentiality of this new architectural scheme, a specific benchmarking flow will be presented in order to explore the ultra-fine grain architectural design space.
132

Développement d’une vanne d’injection de liquide pour l’analyse en ligne par chromatographie en phase gazeuse et ses applications dans le domaine du raffinage : étude du comportement et apport des colonnes monolithiques courtes pour la chromatographie en phase gazeuse haute pression / Development of a liquid injection system dedicated to on-line analysis by gas chromatography and its refining applications : study of the behavior and contribution of short monolithic columns in high pressure gas chromatography

Maniquet, Adrien 14 December 2016 (has links)
En milieu industriel, si l'analyse en ligne d'effluents gazeux à l'aide de la chromatographie en phase gazeuse est actuellement réalisée sans difficultés majeure, l'analyse des liquides reste une des principales problématiques à résoudre. En effet, comparée à une analyse réalisée au laboratoire, l'analyse en ligne d'un échantillon liquide permettrait de s'affranchir de l'étape de prélèvement et de préparation avant injection ainsi que des problèmes de contamination et de représentativité de l'échantillon. Des systèmes d'injection de liquide en ligne sont actuellement disponibles, cependant, des difficultés d'injection liées à la discrimination des analytes sont rencontrées. C'est dans ce contexte qu'une vanne dédiée à l'injection des liquides en ligne a été développée, puis validée en laboratoire, et enfin mise en œuvre sur des applications industrielles pétrolières. Un tout autre enjeu, lié entre autres à la réduction des coûts de maintenance et d'installation, ainsi qu'à la compatibilité de systèmes analytiques destinés à l'industrie et aux micro-pilotes, a orienté des développements instrumentaux vers la miniaturisation des systèmes. Un assemblage de différentes briques technologiques a ensuite été réalisé afin d'évaluer la faisabilité d'un système miniaturisé incorporant la technologie d'injection des liquides en ligne. Finalement et toujours dans ce contexte de miniaturisation, des colonnes monolithiques courtes ont été mises en œuvre en chromatographie en phase gazeuse à haute pression, au laboratoire pour commencer, puis sur des effluents industriels gazeux. Elles ont permis de réaliser des analyses très rapides avec une grande efficacité par unité de longueur tout en pouvant agir sur la sélectivité des colonnes grâce à un contrôle de leurs propriétés de surface / In industry, although on-line analysis of gaseous effluents using gas chromatography is carried out without major difficulty, the analysis of liquids remains problematic and is one of the main issues to be solved. Indeed, compared to an analysis carried out in a laboratory, the on-line analysis of a liquid sample would bypass the steps of sampling and preparation prior to injection and would avoid problems of contamination and representativeness of the sample. Systems for injecting liquids on-line are currently available; however, difficulties are encountered, due to the discrimination of analytes. It is in this context that a valve dedicated to the on-line injection of liquids was developed, validated under laboratory conditions and finally implemented in the oil industry. Another issue, related, amongst other things, to the reduction of maintenance and installation costs, as well as to the compatibility of analytical systems for industry and for micro-pilots, steered instrumental developments towards the miniaturization of systems. Different technological bricks were therefore brought together to assess the feasibility of a miniaturized system involving the technology for on-line injection of liquid. Finally, and still in the context of miniaturization, short monolithic columns were implemented in gaseous phase chromatography at high pressure, first in the laboratory and then on industrial gas effluents. They allowed very fast analyses to be performed which had greater efficiency per unit of length while still being able to act on the selectivity of the columns thanks to the control of their surface properties
133

Modelling and design of Low Noise Amplifiers using strained InGaAs/InAlAs/InP pHEMT for the Square Kilometre Array (SKA) application

Ahmad, Norhawati Binti January 2012 (has links)
The largest 21st century radio telescope, the Square Kilometre Array (SKA) is now being planned, and the first phase of construction is estimated to commence in the year 2016. Phased array technology, the key feature of the SKA, requires the use of a tremendous number of receivers, estimated at approximately 37 million. Therefore, in the context of this project, the Low Noise Amplifier (LNA) located at the front end of the receiver chain remains the critical block. The demanding specifications in terms of bandwidth, low power consumption, low cost and low noise characteristics make the LNA topologies and their design methodologies one of the most challenging tasks for the realisation of the SKA. The LNA design is a compromise between the topology selection, wideband matching for a low noise figure, low power consumption and linearity. Considering these critical issues, this thesis describes the procedure for designing a monolithic microwave integrated circuit (MMIC) LNA for operation in the mid frequency band (400 MHz to 1.4 GHz) of the SKA. The main focus of this work is to investigate the potential of MMIC LNA designs based on a novel InGaAs/InAlAs/InP pHEMT developed for 1 µm gate length transistors, fabricated at The University of Manchester. An accurate technique for the extraction of empirical linear and nonlinear models for the fabricated active devices has been developed. In addition to the linear and nonlinear model of the transistors, precise models for passive devices have also been obtained and incorporated in the design of the amplifiers. The models show excellent agreement between measured and modelled DC and RF data. These models have been used in designing single, double and differential stage MMIC LNAs. The LNAs were designed for a 50 Ω input and output impedance. The excellent fits between the measured and modelled S-parameters for single and double stage single-ended LNAs reflects the accurate models that have been developed. The single stage LNA achieved a gain ranging from 9 to 13 dB over the band of operation. The gain was increased between 27 dB and 36 dB for the double stage and differential LNA designs. The measured noise figures obtained were higher by ~0.3 to ~0.8 dB when compared to the simulated figures. This is due to several factors which are discussed in this thesis. The single stage design consumes only a third of the power (47 mW) of that required for the double stage design, when driven from a 3 V supply. All designs were unconditionally stable. The chip sizes of the fabricated MMIC LNAs were 1.5 x 1.5 mm2 and 1.6 x 2.5 mm2 for the single and double stage designs respectively. Significantly, a series of differential input to single-ended output LNAs became of interest for use in the Square Kilometre Array (SKA), as it utilises differential output antennas in some of its configurations. The single-ended output is preferable for interfacing to the subsequent stages in the analogue chain. A noise figure of less than 0.9 dB with a power consumption of 180 mW is expected for these designs.
134

Design of a low noise, limited area and full on-chip power management for CMOS pixel sensors in high energy physics experiments / Conception de la gestion de l'alimentation à faible bruit, de petite taille et sur-puce pleinement pour les capteurs à pixels CMOS dans des expériences en physique des hautes énergies

Wang, Jia 03 September 2012 (has links)
Quelles sont les particules élémentaires et comment l'univers proviennent sont les principales forces motrices de la physique des hautes énergies. Afin de démontrer le modèle standard et découvrez la nouvelle physique, plusieurs détecteurs sont construits pour les expériences en physique des hautes énergies. Capteurs à pixels CMOS offrent un compromis attirant entre la vitesse de lecture, le budget matériel, la tolérance au rayonnement, la consommation d'énergie et la granularité, par rapport aux capteurs à pixels hybrides et des dispositifs à transfert de charge. Ainsi, les CPS sont un bon choix pour détecter les particules chargées dans les détecteurs de vertex et des télescopes de faisceau. La distribution de puissance devient un enjeu important dans les détecteurs à venir, puisque une quantité considérable de capteurs seront installés. Malheureusement, le «Independent Powering» échoue, comme l'approche traditionnelle. Afin de résoudre les problèmes de distribution de puissance et de fournir des tensions silencieuses, cette thèse se concentre sur la conception de la gestion de l'alimentation à faible bruit, à basse consommation d'énergie, de petite taille et sur-puce pleinement pour les CPS. Les CPS sont d'abord introduits en tirer les exigences de conception de la gestion de l'alimentation. La distribution de puissance dédiées à les CPS est ensuite proposé, dans laquelle la gestion de l'alimentation est utilisée comme seconde étape de conversion de puissance. Deux régulateurs sur-puce pleinement sont proposés pour générer la tension d'alimentation analogique et de la tension d'alimentation de référence requis par l'opération d'échantillonnage double corrélé, respectivement. Deux prototypes ont vérifié ces régulateurs. Ils peuvent répondre aux exigences des CPS. En outre, les techniques de gestion de l'alimentation et de la conception tolérance au rayonnement sont également présentés dans cette thèse. / What are the elementary particles and how did the universe originate are the main driving forces in the high energy physics. In order to further demonstrate the standard model and discover new physics, several detectors are built for the high energy physics experiments. CMOS pixel sensors (CPS) can achieve an attractive tradeoff among many performance parameters, such as readout speed, granularity, material budget, power dissipation, radiation tolerance and integrating readout circuitry on the same substrate, compared with the hybrid pixel sensors and charge coupled devices. Thus, the CPS is a good candidate for tracking the charged particles in vertex detectors and beam telescopes.The power distribution becomes an important issue in the future detectors, since a considerable amount of sensors will be installed. Unfortunately, the independent powering has been proved to fail. In order to solve the power distribution challenges and to provide noiseless voltages, this thesis focuses on the design of a low noise, limited area, low power consumption and full on-chip power management in CPS chips. The CPS are firstly introduced drawing the design requirements of the power management. The power distribution dedicated to CPS chips is then proposed, in which the power management is utilized as the second power conversion stage. Two full on-chip regulators are proposed to generate the analog power supply voltage and the reference voltage required by correlated double sampling operation, respectively. Two prototypes have verified these regulators. They can meet the requirements of CPS. Moreover, the power management techniques and the radiation tolerance design are also presented in this thesis.
135

Příprava realizace výrobní haly v Trutnově / Preparation for the production hall in Trutnov

Zemánek, Miroslav January 2018 (has links)
This Diploma thesis deals with preparation for the production hall in Trutnov. The thesis handles technological prescriptions of micropiles, piles, casing panels BRUCHA Paneel. Thesis provides an insight into the inspection and testing plan of micropiles, the situation concerning broader transportation relations with traffic routes, itemized budget with land area, timetable, draft of major machines and mechanisms. Furthermore, the thesis contains drawing formwork of external extension, layout plan, details of the wall casing.
136

Kulturně společenské centrum / Culture and public centre

Ruszová, Veronika January 2018 (has links)
The subject of my master‘s thesis is A new cultural society center building in Frýdek-Místek. The work is explained in the form of project documentation for the execution of the building containing all the requirements following the legal standards and regulations. The land is flat. It is a two-storey, basement building. The supporting system of the object is a monolithic reinforced concrete skeleton filled with ceramic blocks. Basement masonry is permanent formwork. The roof and ceiling structures are made of reinforced concrete slabs. Roofs above both of the first floors are flat green roofs, the roof above the second floor is also flat formed by river rock. The new building of the cultural society center corresponds to the town plan of the town of Frýdek-Místek. The design was influenced by the layout, static and architectural features, and energy savings.
137

Dům nábytku v Trenčíně / House of Furniture in Trenčín

Meliš, Lenka January 2018 (has links)
The diploma thesis deals with project design documentation of House of Furniture in Trenčín. The object is designed as a two floor buildings with basement below grand level. Object´s ground plan is rectangular shaped. First floor contains a lobby and open store space. Second floor is meant predominantly for an administrative purposes. Underground garage is designed in basement. Construction system is monolithic skeletal structure with transverse dies and stiffening core. In the middle of object is designed open atrium with vegetation surface. Atrium goes through both of above- ground floors. Object is covered by a flat roof.
138

Architektonická studie cyklistického stadionu /dráhy/ Favorit Brno /na volné ploše v Brně Komárově/. / Architectural study of the cycling stadium / runway / Favorit Brno / on the open space in.

Pappová, Martina January 2018 (has links)
The subject of the diploma thesis is an architectural study of a velodrome in Brno Komárov. It is an indoor cycling track which is still missing in the Czech Republic. The whole site of the Hněvkovského sports complex in Komárov was elaborated within the architectural study. The aim of the proposal was to attract a wide range of visitors to the site, so not only buildings for sports were designed. But also two sets of buildings as a modular construction from containers providing premises for rent. The construction of the velodrome was deign as a combination of monolithic reinforced concrete and steel truss structure. The cladding is design from insulated panel system.
139

Objekt pro bydlení – nosná železobetonová konstrukce / Load-bearing concrete structure of the residential building

Hejl, Zbyněk January 2020 (has links)
Master´s thesis is focused on the design and assessment of reinforced concrete load-bearing structure of a detached house. The supporting structure model is processed in SCIA Engineer. Selected reinforced concrete elements are assessed in accordance with ČSN EN 1992 - 1 -1. Part of the thesis is a technical report and drawings of the shape and reinforcement.
140

Penzion ve Strážnici / Boarding House in Strážnice

Ježek, Martin January 2020 (has links)
Diploma thesis solves proposal of the boarding house in Strážnice. The building is situated in the western part of Strážnice near the boat dock. Access to the pension is from the main road or on the cycling path leading along the city river. The boarding house is designed on a bed of 50 people with the possibility of a restaurant for port visitors and the public. The building has a parking space and terrace. The boarding house is two-storey with hipped roof. In the 1st floor is a restaurant with kitchen, reception with facilities for staff and smaller rooms for guests. The second floor consists of apartments and rooms. The building is brick with monolithic ceiling construction. The roof structure consists of trusses. Integral part of the landscaping with small architecture. The façade finish consists of ceramic brick cladding, scratched plaster with wooden accessories that fit into the surrounding landscape.

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