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Relevant bibliographies by topics / Tight designs / Dissertations / Theses

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Dissertations / Theses on the topic 'Tight designs'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Zhao, Xingang Ph D. Massachusetts Institute of Technology. "Critical power characteristics of axially heterogeneous tight bundle designs." Thesis, Massachusetts Institute of Technology, 2016. http://hdl.handle.net/1721.1/103648.

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Thesis: S.M., Massachusetts Institute of Technology, Department of Nuclear Science and Engineering, 2016.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Cataloged from student-submitted PDF version of thesis.<br>Includes bibliographical references (pages 133-136).<br>Accurate prediction of the dryout critical power in fuel rod bundles is challenging and has important implications for the economy and safety of Boiling Water Reactors (BWRs). This is especially true for the tight bundle desig

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2

Gamachchige, Nirosh Tharaka Sandakelum Gangoda. "Double-Change Covering Designs with Block Size k = 4." OpenSIUC, 2017. https://opensiuc.lib.siu.edu/dissertations/1423.

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A double-change covering design (dccd) is an ordered set of blocks with block size k is an ordered collection of b blocks, B = {B1,B2, · · · ,Bb}, each an unordered subset of k distinct elements from [v] = {1, 2, · · · , v}, which obey: (1) each block differs from the previous block by two elements, and, (2) every unordered pair of [v] appears in at least one block. The object is to minimize b for a fixed v and k. Tight designs are those in which each pair is covered exactly once. We present constructions of tight dccd’s for arbitrary v when k = 2 and minimal constructions for v <= 20 when k =

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3

Wu, Xiaobin. "Efficient, tight bounding volumes for subdivision surfaces." [Gainesville, Fla.] : University of Florida, 2005. http://purl.fcla.edu/fcla/etd/UFE0011460.

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4

Swarna, Ravindra Babu Surveying &amp Spatial Information Systems Faculty of Engineering UNSW. "Ultra-tight integration of GPS/Pseudolites/INS: system design and performance analysis." Awarded by:University of New South Wales, 2006. http://handle.unsw.edu.au/1959.4/40075.

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The complementary advantages of GPS and INS have been the principle driving factor to integrate these two navigation systems as an integrated GPS/INS system in various architectural forms to provide robust positioning. Although the loosely coupled and tightly coupled GPS/INS systems have been in existence for over a decade or two and performed reasonably well, nevertheless, the tracking performance was still a concern in non-benign environments such as dynamic scenarios, indoor environments, urban areas, under foliages etc., where the GPS tracking loops lose lock due to the signals being weak

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5

Winter, Joerg. "Nanofiltration and tight ultrafiltration membranes for drinking water treatment – system design and operation." Thesis, University of British Columbia, 2017. http://hdl.handle.net/2429/62873.

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Nanofiltration (NF) and tight Ultrafiltration (UF) membranes represent a technology that is well suited for high quality drinking water production from source waters with high concentrations of natural organic matter (NOM) or other contaminants. However, the application of these membranes is limited, mainly because of the challenges related to fouling, concentration polarization (CP), system complexity and cost. The aim of the present study was to address these issues and to enable a more widespread application of this technology. Opportunities for simplifying NF and tight UF systems by, f

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6

Lebouachera, Seif El Islam. "Optimisation d'une formulation EOR chimique pour des réservoirs pétroliers conventionnels et Tight." Electronic Thesis or Diss., Pau, 2020. http://www.theses.fr/2020PAUU3016.

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Une des méthodes de récupération assistée du pétrole les plus utilisées est l'injection de polymères (polymer flooding). L’objectif principal des travaux est d’étudier de nouvelles formulations aqueuses basées sur des mélanges polymère/microparticules afin d’améliorer les comportements rhéologiques classiques de polymère décris dans la littérature en vue d’une application à la récupération assistée du pétrole (EOR) par la méthode chimique, dans des conditions de salinité et de température simulés à un réservoir pétrolier Algérien (6 g/L NaCl et 20-80 °C). L’ensemble des travaux basé sur de l’o

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7

Khan, Sajjad. "Tight smoothing of the squared distance functions and applications to computer-aided design and differential equations." Thesis, Swansea University, 2014. https://cronfa.swan.ac.uk/Record/cronfa42265.

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We study the quadratic lower compensated convex transform C[l lambda]dist2(x, K) of the squared distance function to a nonempty, non-convex closed set K ⊂ R[n]. These transforms, introduced in [20], provide C[1,1]-smooth tight-approximations of the squared distance functions. We introduce a result to calculate explicit formulae for the lower transform of the squared distance functions. Our first main result is the geometric characterisation of critical points of the quadratic lower compensated convex transform Cllambda dist2(x,K), which shows that the geometric non-smooth critical points o

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8

Luyt, Ian Christiaan Berning. "A leak tight design methodology for large diameter flanges based on non-linear modelling and analysis." Diss., University of Pretoria, 2015. http://hdl.handle.net/2263/56085.

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There is currently a need for large diameter flanges for the supply of water in South Africa. These large diameter pipe flanges are required to accommodate pipes with nominal bores of up to 4 m and should successfully withstand internal pressures of up to 8 MPa. No current relevant standard / code contains prescribed design values for flanges which either operate at such high pressures or have such large diameters. Due to this an alternative method of design, by means of non-linear finite element modelling, is proposed. Three types of integral flange designs are considered, namely: flat f

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9

Nyawo, Talent. "Design of a rotary valve for pressurised steam." Thesis, KTH, Maskinkonstruktion (Inst.), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-192859.

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Denna rapport är gjord på ett examensarbete som var utfört på uppdrag av det svenska företaget Ranotor AB. Syftet var att utveckla en konceptuell lösning för en rotationsventil som skall fungera i en miljö med hög temperatur och högt tryck. Ventilen skall arbeta under höga rotationshastigheter, vilket kräver korta öppettider.Tekniska hjälpmedel såsom SolidWorks, ANSYS och MATLAB användes för att modellera och analysera de konceptuella lösningarna. Slutlösningen valdes från ett flertal olika koncept, varpå detta vidareutvecklades och optimerades. Betydande material och gastätningslösningar iden

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10

Seiser, Bernhard Josef. "Topologically close-packed phase prediction in Ni-based superalloys : phenomenological structure maps and bond-order potential theory." Thesis, University of Oxford, 2011. http://ora.ox.ac.uk/objects/uuid:4298ebde-4b32-4dcc-b294-649493f9146c.

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Single crystal nickel-based superalloys are used in modern gas turbines because of their remarkable resistance to creep deformation at elevated temperatures, which is ensured by the addition of significant amounts of refractory elements. Too high concentrations of refractory elements can lead to the formation of topologically-close packed (TCP) phases during exposure to conditions of high temperature and stress which result in the degradation of the creep properties. The traditional methods for predicting the occurrence of TCP phases in Ni-based superalloys have been based on the PHACOMP and n

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11

Bauer, Heiner. "Dynamic instruction set extension of microprocessors with embedded FPGAs." Master's thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2017. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-222858.

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Increasingly complex applications and recent shifts in technology scaling have created a large demand for microprocessors which can perform tasks more quickly and more energy efficient. Conventional microarchitectures exploit multiple levels of parallelism to increase instruction throughput and use application specific instruction sets or hardware accelerators to increase energy efficiency. Reconfigurable microprocessors adopt the same principle of providing application specific hardware, however, with the significant advantage of post-fabrication flexibility. Not only does this offer similar

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12

Bautze, Tobias. "Towards quantum optics experiments with single flying electrons in a solid state system." Thesis, Grenoble, 2014. http://www.theses.fr/2014GRENY059/document.

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Ce travail de thèse porte sur l’étude fondamentale de systèmes nano-électroniques,mesurés à très basse température. Nous avons réalisé des interféromètres électroniques àdeux chemins à partir d’électrons balistiques obtenus dans un gaz 2D d’électrons d’unehétéro-structure GaAs/AlGaAs. Nous montrons que la phase des électrons, et ainsileur état quantique,peut être contrôlée par des grilles électrostatiques. Ces dispositifsse révèlent être des candidats prometteurs pour la réalisation d’un qubit volant. Nousavons développé une simulation numérique évoluée d’un modèle de liaisons fortes à partird

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13

Nosjean, Nicolas. "Management et intégration des risques et incertitudes pour le calcul de volumes de roches et de fluides au sein d’un réservoir, zoom sur quelques techniques clés d’exploration Integrated Post-stack Acoustic Inversion Case Study to Enhance Geological Model Description of Upper Ordovicien Statics : from imaging to interpretation pitfalls and an efficient way to overcome them Improving Upper Ordovician reservoir characterization - an Algerian case study Tracking Fracture Corridors in Tight Gas Reservoirs : An Algerian Case Study Integrated sedimentological case study of glacial Ordovician reservoirs in the Illizi Basin, Algeria A Case Study of a New Time-Depth Conversion Workflow Designed for Optimizing Recovery Proper Systemic Knowledge of Reservoir Volume Uncertainties in Depth Conversion Integration of Fault Location Uncertainty in Time to Depth Conversion Emergence of edge scenarios in uncertainty studies for reservoir trap analysis Enhancing geological model with the use of Spectral Decomposition - A case study of a prolific stratigraphic play in North Viking Graben, Norway Fracture corridor identification through 3D multifocusing to improve well deliverability, an Algerian tight reservoir case study Geological Probability Of Success Assessment for Amplitude-Driven Prospects, A Nile Delta Case Study." Thesis, université Paris-Saclay, 2020. http://www.theses.fr/2020UPASS085.

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En tant que géoscientifique dans le domaine de l’Exploration pétrolière et gazière depuis une vingtaine d’années, mes fonctions professionnelles m’ont permis d’effectuer différents travaux de recherche sur la thématique de la gestion des risques et des incertitudes. Ces travaux de recherche se situent sur l’ensemble de la chaîne d’analyse Exploration, traitant de problématiques liées à l’acquisition et au traitement sismique, jusqu’au placement optimal de forages d’exploration. Un volet plus poussé de mes travaux s’est orienté sur la gestion des incertitudes géophysiques en Exploration pétroli

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14

"Minimal Cubature Formulae for Spherically Symmetric and Tight Euclidean Designs." Thesis, 2010. http://hdl.handle.net/2237/13434.

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15

平尾, 将剛, and Masatake Hirao. "Minimal Cubature Formulae for Spherically Symmetric Integrals and Tight Euclidean Designs." Thesis, 2010. http://hdl.handle.net/2237/13434.

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16

Dong, Yu-Hao, and 董育豪. "Design of an Auxiliary Power Supply with Tight Regulation for Instrument Applications." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/78158674908856535613.

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碩士<br>國立臺灣科技大學<br>電子工程系<br>100<br>In this thesis, a 150-watt auxiliary power supply featuring advantages of isolated multiple outputs and tight regulation for instrument applications is developed. A three-stage circuit is studied. The first-stage circuit consists of a boost power factor correction (PFC) converter. The second-stage circuit consists of a two-switch forward converter with coupled inductors. The third-stage circuit comprise a buck converter, a synchronous buck converter and a buck-boost converter. The developed auxiliary power supply has over-voltage protection (OVP), over-current

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17

涂家斌. "Tight-Binding Theory for Coupling of Identical Photonic Crystal Waveguides and its application for Wavelength-Division Multiplexing design." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/32179890911221797360.

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碩士<br>國立交通大學<br>光電工程系所<br>93<br>By using tight-binding theory of solid-state physics, we can analytically describe the dispersion relation of the propagation in a photonic crystal waveguide (PCW). In turn, we can derive the dispersion curves of two coupled identical PCWs . Due to not only the transverse coupling as the conventional coupled waveguides but also the longitudinal coupling of two coupled identical PCWs. “Band-crossing” may occur at which the PCWs will not couple with each other (or decoupled) when the coupled PCWs are placed close enough to each other. By employing the tight-bi

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18

Hsieh, Ping-Chun, and 謝秉均. "Design of a Primary-Side-Control Quasi-Resonant Flyback Converter With Tight Output Voltage Regulation and Self-Calibrated Valley Switching." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/97120174195696779415.

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碩士<br>國立臺灣大學<br>電子工程學研究所<br>101<br>This thesis presents methods and circuits to achieve tight output voltage regulation and self-calibrated valley switching for primary-side-control quasi-resonant (QR) flyback converters. By tracking the slope of auxiliary winding voltage, the controller retrieves the output voltage information at a fixed diode current with a simple analog method, and it thus suppresses the load and line effects on the output voltage. To sense the voltage slope, a compensating ramp is applied to the feedback voltage and the sensing circuit detects the zero-slope point instead.

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19

"A New Communication Scheme Implying Amplitude Limited Inputs and Signal Dependent Noise: System Design, Information Theoretic Analysis and Channel." Doctoral diss., 2015. http://hdl.handle.net/2286/R.I.36502.

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abstract: I propose a new communications scheme where signature signals are used to carry digital data by suitably modulating the signal parameters with information bits. One possible application for the proposed scheme is in underwater acoustic (UWA) communications; with this motivation, I demonstrate how it can be applied in UWA communications. In order to do that, I exploit existing parameterized models for mammalian sounds by using them as signature signals. Digital data is transmitted by mapping vectors of information bits to a carefully designed set of parameters with values obtained fro

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