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Dissertations / Theses on the topic 'Thermal object'

Author: Grafiati

Published: 30 May 2022

Last updated: 31 July 2025

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1

Mozok, E. M. "Monitoring condition of thermal object." Thesis, Сумський державний університет, 2014. http://essuir.sumdu.edu.ua/handle/123456789/34870.

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Thermal power plants are producing more than a third of consumed electricity and become main enterprise which generate electricity, both in Ukraine and other countries. To achieve optimal control of the combustion process it is necessary to provide individual adjustment of the following parameters: distribution of the combustion zone according to the project plan; control of air distribution and air/fuel ratio in combustion zone. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/34870

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2

Kaba, Utku. "Moving Hot Object Detection In Airborne Thermal Videos." Master's thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12614532/index.pdf.

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In this thesis, we present an algorithm for vision based detection of moving objects observed by IR sensors on a moving platform. In addition we analyze the performance of different approaches in each step of the algorithm. The proposed algorithm is composed of preprocessing, feature detection, feature matching, homography estimation and difference image analysis steps. First, a global motion estimation based on planar homography model is performed in order to compensate the motion of the sensor and moving platform where the sensors are located. Then, moving objects are identified on differenc

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3

Bergenroth, Hannah. "Use of Thermal Imagery for Robust Moving Object Detection." Thesis, Linköpings universitet, Medie- och Informationsteknik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-177888.

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This work proposes a system that utilizes both infrared and visual imagery to create a more robust object detection and classification system. The system consists of two main parts: a moving object detector and a target classifier. The first stage detects moving objects in visible and infrared spectrum using background subtraction based on Gaussian Mixture Models. Low-level fusion is performed to combine the foreground regions in the respective domain. For the second stage, a Convolutional Neural Network (CNN), pre-trained on the ImageNet dataset is used to classify the detected targets into o

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4

Yigit, Ahmet. "Thermal And Visible Band Image Fusion For Abandoned Object Detection." Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/3/12611720/index.pdf.

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Packages that are left unattended in public spaces are a security concern and timely detection of these packages is important for prevention of potential threats. Operators should be always alert to detect abandoned items in crowded environments. However, it is very difficult for operators to stay concentrated for extended periods. Therefore, it is important to aid operators with automatic detection of abandoned items. Most of the methods in the literature define abandoned items as items newly added to the scene and stayed stationary for a predefined time. Hence other stationary objects, such

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López, Mas Joan. "Parallel object-oriented algorithms for simulation of multiphysics : application to thermal systems." Doctoral thesis, Universitat Politècnica de Catalunya, 2016. http://hdl.handle.net/10803/387441.

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The present and the future expectation in parallel computing pose a new generational change in simulation and computing. Modern High Performance Computing (HPC) facilities have high computational power in terms of operations per second -today peta-FLOPS (10e15 FLOPS) and growing toward the exascale (10e18 FLOPS) which is expected in few years-. This opens the way for using simulation tools in a wide range of new engineering and scientific applications. For example, CFD&HT codes will be effectively used in the design phase of industrial devices, obtaining valuable information with reasonable t

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Viau, Claude. "Multispectral Image Analysis for Object Recognition and Classification." Thesis, Université d'Ottawa / University of Ottawa, 2016. http://hdl.handle.net/10393/34532.

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Computer and machine vision applications are used in numerous fields to analyze static and dynamic imagery in order to assist or automate some form of decision-making process. Advancements in sensor technologies now make it possible to capture and visualize imagery at various wavelengths (or bands) of the electromagnetic spectrum. Multispectral imaging has countless applications in various field including (but not limited to) security, defense, space, medical, manufacturing and archeology. The development of advanced algorithms to process and extract salient information from the imagery is a c

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Beyan, Cigdem. "Object Tracking For Surveillance Applications Using Thermal And Visible Band Video Data Fusion." Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/12612743/index.pdf.

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Individual tracking of objects in the video such as people and the luggages they carry is important for surveillance applications as it would enable deduction of higher level information and timely detection of potential threats. However, this is a challenging problem and many studies in the literature track people and the belongings as a single object. In this thesis, we propose using thermal band video data in addition to the visible band video data for tracking people and their belongings separately for indoor applications using their heat signatures. For object tracking step, an adaptive,

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Yevseienko, Oleg, Anatoliy Gapon, and Dmytro Salnikov. "Searching for Optimal Control Parameters of Thermal Object Using Pulse-Width Modulation (PWM) Control with Predictive Filter." Thesis, Lviv Polytechnic Publishing House, 2015. http://repository.kpi.kharkov.ua/handle/KhPI-Press/41116.

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The thesis is devote to the temperature control of objects with lumped or distributed parameters. The problems of choosing the right value of regulator’s heater power and prediction period are discussed. The major attention is paid to the process of searching the minimum value of control quantities. It is shown that the approximated second-order plane has an exact accordance with the original data. It is concluded that algorithm of PWM-control with prediction filter provides good quality control.

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Stigson, Magnus. "Object Tracking Using Tracking-Learning-Detection inThermal Infrared Video." Thesis, Linköpings universitet, Datorseende, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-93936.

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Automatic tracking of an object of interest in a video sequence is a task that has been much researched. Difficulties include varying scale of the object, rotation and object appearance changing over time, thus leading to tracking failures. Different tracking methods, such as short-term tracking often fail if the object steps out of the camera’s field of view, or changes shape rapidly. Also, small inaccuracies in the tracking method can accumulate over time, which can lead to tracking drift. Long-term tracking is also problematic, partly due to updating and degradation of the object model, lea

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10

Samaei, Amiryousef. "Evaluating the effect of different distances on the pixels per object and image classification." Thesis, Mittuniversitetet, Avdelningen för elektronikkonstruktion, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-25880.

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In the last decades camera systems have continuously evolved and have found wide range of applications. One of the main applications of a modern camera system is surveillance in outdoor areas. The camera system, based on local computations, can detect and classify objects autonomously. However, the distance of the objects from the camera plays a vital role on the classification results. This could be specially challenging when lighting conditions are varying. Therefore, in this thesis, we are examining the effect of changing dis-tances on object in terms of number of pixels. In addition, the e

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Sharma, Vinay. "Simultaneous object detection and segmentation using top-down and bottom-up processing." Columbus, Ohio : Ohio State University, 2008. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1196372113.

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Majsniar, Michal. "Tepelně technické posouzení skladby vegetační střechy s vlivem vlhkosti." Doctoral thesis, Vysoké učení technické v Brně. Fakulta stavební, 2017. http://www.nusl.cz/ntk/nusl-355608.

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Dissertation deals with thermal technical assessment songs vegetation roof with moisture, the more the influence of vegetation on the roof thermal stability of the structure. The aim of this work is to demonstrate the beneficial effect of vegetation roofs, specifically growing Formation of thermo-technical point of view on the favorable temperature conditions in the building. Such speech can be captured only if it is judged-temperature profile dynamically daily operation of real marginal climatic temperatures. Using a stationary or quasi-stationary boundary climatic temperatures which are usua

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13

Denman, Simon Paul. "Improved detection and tracking of objects in surveillance video." Queensland University of Technology, 2009. http://eprints.qut.edu.au/29328/.

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Surveillance networks are typically monitored by a few people, viewing several monitors displaying the camera feeds. It is then very dicult for a human op- erator to eectively detect events as they happen. Recently, computer vision research has begun to address ways to automatically process some of this data, to assist human operators. Object tracking, event recognition, crowd analysis and human identication at a distance are being pursued as a means to aid human operators and improve the security of areas such as transport hubs. The task of object tracking is key to the eective use of more ad

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Denman, Simon P. "Improved detection and tracking of objects in surveillance video." Thesis, Queensland University of Technology, 2009. https://eprints.qut.edu.au/29328/1/Simon_Denman_Thesis.pdf.

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Surveillance networks are typically monitored by a few people, viewing several monitors displaying the camera feeds. It is then very difficult for a human operator to effectively detect events as they happen. Recently, computer vision research has begun to address ways to automatically process some of this data, to assist human operators. Object tracking, event recognition, crowd analysis and human identification at a distance are being pursued as a means to aid human operators and improve the security of areas such as transport hubs. The task of object tracking is key to the effective use of

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15

Евсеенко, Олег Николаевич, та Сергей Михайлович Савицкий. "Описание метода управления тепловым объектом с распределёнными параметрами с помощью широтно-импульсной модуляции и предсказывающего фильтра". Thesis, Національний технічний університет "Харківський політехнічний інститут", 2013. http://repository.kpi.kharkov.ua/handle/KhPI-Press/48405.

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Предложен метод управления для тепловых объектов, получены разгонные кривые теплового объекта, рассчитан максимально допустимый период дискретизации переходного процесса по теореме Котельникова, выбрана частота дискретизации, проведён эксперимент по управлению инерционным тепловым объектом.<br>Proposed a method of control thermal objects, obtained the acceleration curves of an object, calculated the maximum allowable sampling period of transition with the theorem of Kotelnikov, chosen the sampling frequency, conducted experiments for control the temperature of inertial object.

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16

Mikula, Martin. "Termodiagnostika - dotykové a bezdotykové měření teploty." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231525.

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This thesis is concerned with thermodiagnostics in industrial practise, which is very important for the assessment of technical condition of object on the basis of temperature, in today's time. It includes summary of contact and contact-free methods and their principle, advantages and disadvantages for aplication in industrial practise. Because of thesis it was carried out measurement in company Daikin Device Czech republic with the use of contact thermometer and two available thermocameras for solving of topical tasks relating to production.

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17

D'AMMANDO, FILIPPO. "Multiwavelength studies of the blazars detected by AGILE." Doctoral thesis, Università degli Studi di Roma "Tor Vergata", 2010. http://hdl.handle.net/2108/1199.

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La scoperta dell’emissione nei raggi gamma da parti di numerosi Nuclei Galattici Attivi (AGN) con EGRET ed i telescopi Cherenkov è stata una delle più rivoluzionarie scoperte di astrofisica delle alte energie degli ultimi 20 anni, portando all’identificazione di una nuova classe di AGN: i blazar. I blazar sono la sottoclasse più estrema di AGN, caratterizzata da forte emissione di radiazione non-termica attraverso l'intero spettro elettromagnetico. Questa emissione è interpretata come il risultato della radiazione elettromagnetica da un getto relativistico allineato alla linea di vista dell'

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18

Мозок, Є. М., та І. В. Сердюк. "Апаратно-програмний стенд керування тепловим об’єктом". Thesis, Сумський державний університет, 2018. http://essuir.sumdu.edu.ua/handle/123456789/67549.

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В результаті роботи було розроблено предпроектне рішення АПС керування тепловим об’єктом. Даний АПК передбачає декілька каналів керування (температура нагрівача, оберти вентилятора, поворот заслонки) та збурення (оберти вентилятора, вологість). Запропонований стенд може бути використаний в рамках дисциплін ТАУ - для дослідження характеристик об’єкту зі змінними параметрами та збуреннями, МПП/МПСУ - для розробки ПО керування об’єктом.

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19

Fleury, Rob. "Evaluation of Thermal Radiation Models for Fire Spread Between Objects." Thesis, University of Canterbury. Civil and Natural Resources Engineering, 2010. http://hdl.handle.net/10092/4959.

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Fire spread between objects within a compartment is primarily due to the impingement of thermal radiation from the fire source. In order to estimate if or when a remote object from the fire will ignite, one must be able to quantify the radiative heat flux being received by the target. There are a variety of methods presented in the literature that attempt to calculate the thermal radiation to a target; each one based on assumptions about the fire. The performance of six of these methods, of varying complexity, is investigated in this research. This includes the common point source model,

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20

Braun, Marco. "Optically Controlled Manipulation of Single Nano-Objects by Thermal Fields." Doctoral thesis, Universitätsbibliothek Leipzig, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-206342.

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This dissertation presents and explores a technique to confine and manipulate single and multiple nano-objects in solution by exploiting the thermophoretic interactions with local temperature gradients. The method named thermophoretic trap uses an all-optically controlled heating via plasmonic absorption by a gold nano-structure designed for this purpose. The dissipation of absorbed laser light to thermal energy generates a localized temperature field. The spatial localization of the heat source thereby leads to strong temperature gradients that are used to drive a particle or molecule into a

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21

Toullier, Thibaud. "Simultaneous characterization of objects temperature and radiative properties through multispectral infrared thermography." Thesis, Rennes 1, 2019. http://www.theses.fr/2019REN1S038/document.

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L'utilisation de caméras infrarouges bas coûts pour la surveillance long-terme d'infrastructures est prometteuse grâce aux dernières avancées technologiques du domaine. Une mesure précise de la température des surfaces observées in-situ se heurte au manque de connaissance des propriétés radiatives de la scène. L'utilisation d'une instrumentation multi-capteurs permet d'affiner le modèle de mesure afin d'obtenir une estimation plus précise de la température. A contrario, il est montré qu'il est toujours possible d'exploiter des données climatiques en ligne pour pallier un manque de capteur. Des

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22

Santos, Sérgio Botassi dos. "Uma contribuição ao estudo do comportamento termomecânico de estruturas maciças de concreto. modelagem viscoelástica linear e aplicações." Universidade Federal do Espírito Santo, 2004. http://repositorio.ufes.br/handle/10/6188.

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Made available in DSpace on 2016-12-23T14:05:55Z (GMT). No. of bitstreams: 1 1- Capa.pdf: 18716 bytes, checksum: 1dddf42a26f2caa98fb2c3c97cb02a55 (MD5) Previous issue date: 2004-04-06<br>O estudo realizado nesta dissertação é motivado principalmente pelo interesse em se avaliar a resposta térmica e tensional em estruturas de concreto massa nas primeiras idades considerando a viscoeleasticidade linear do material. Neste trabalho desenvolvem-se modelos numérico-computacionais e implementam-se os softwares PFEM_2DT e PFEM_2DAT, de análise térmica e de tensões no domínio bidimensional, respectiv

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Hager, Philipp B. [Verfasser]. "Dynamic thermal modeling for moving objects on the Moon / Philipp B. Hager." München : Verlag Dr. Hut, 2013. http://d-nb.info/1043892575/34.

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Nguyen, van Thien an. "Sur la modélisation et la simulation du couplage thermo-chimio-mécanique au sein des élastomères chargés." Thesis, Aix-Marseille, 2012. http://www.theses.fr/2012AIXM4787/document.

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Dans ce travail prospectif, nous proposons une modélisation intégrant un couplage thermo-chimio-mécanique pour les élastomères chargés et dissipatifs. En se basant sur les résultats et les observations de la littérature, nous avons développé un cadre thermodynamique général et proposé trois modèles phénoménologiques de comportement. Nos outils principaux sont la thermodynamique des processus irréversibles, la notion d'états intermédiaires, les matériaux standards généralisés. Une variable interne correspondant au degré de réticulation est introduite. L'évolution de cette variable prend en comp

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Tyagi, Sidhanth. "Objects interacting with a solidification front." Electronic Thesis or Diss., Université Paris sciences et lettres, 2020. http://www.theses.fr/2020UPSLS025.

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L’interaction du front de solidification avec des objets (gouttelettes, bulles, particules ou cellules biologiques) est unphénomène courant rencontré dans une multitude de situations, allant des procédés industriels aux événements naturels, tels que la formation de glace de mer, la croissance de monocristaux, la métallurgie, la cryobiologie, l’ingéniériealimentaire ou la purification de l’eau. Ces processus, pourtant bien identifiés, sont complexes et une compréhensionapprofondie reste à développer. Les objets (rigides ou déformables) peuvent avoir différents comportements lors de leurrencontr

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26

Fehlman, William L. "Classification of non-heat generating outdoor objects in thermal scenes for autonomous robots." W&M ScholarWorks, 2008. https://scholarworks.wm.edu/etd/1539623338.

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We have designed and implemented a physics-based adaptive Bayesian pattern classification model that uses a passive thermal infrared imaging system to automatically characterize non-heat generating objects in unstructured outdoor environments for mobile robots. In the context of this research, non-heat generating objects are defined as objects that are not a source for their own emission of thermal energy, and so exclude people, animals, vehicles, etc. The resulting classification model complements an autonomous bot's situational awareness by providing the ability to classify smaller structure

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27

Shanmugam, Kumar. "Multiscale modelling of sintering in thermal barrier coatings." Thesis, University of Oxford, 2010. http://ora.ox.ac.uk/objects/uuid:a8075c89-8417-4e3e-8af5-d07cc786f509.

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Multiscale (analytical and computational) models have been developed based on a thermodynamic variational principle (TVP) to model sintering and eventual mudcracking in thermal barrier coatings (TBCs) made using the electron beam physical vapour deposition (EB-PVD) process. It is assumed that the sintering occurs by interfacial diffusion at local contacts between columns and driven by changes in interface free energy and elastic stored energy of the coating. The models link diffusional processes at the scale of contacting feathery columns with the macroscopic deformation and sintering response

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Pothecary, N. M. "The interaction of high frequency fields with physical objects and the resultant thermal response." Thesis, University of Bristol, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.385685.

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Jones, Graham. "Thermal analysis and testing of a spaceborne passive cooler." Thesis, University of Oxford, 1994. http://ora.ox.ac.uk/objects/uuid:cef5bd18-c80d-442c-bb70-6414fdf29b61.

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This thesis describes the thermal design and thermal testing of the development model radiative cooler for the Composite Infra-Red Spectrometer (CIRS) due for launch on the Cassini spacecraft in 1997. The radiative cooler is used to cool the instrument's Focal Plane Assembly (FPA) to approximately 80K. The FPA holds two arrays of HgCdTe detectors for the mid infra-red spectrometer of the instrument which covers the wavelength range 7μm to 17μm. The FPA is mounted from the optics on a titanium alloy tripod and is cooled conductively by the radiator via a flexible link and a cold finger. A rang

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Pustějovský, Jakub. "Administrativní objekt ve Fulneku." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2018. http://www.nusl.cz/ntk/nusl-372325.

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The subject of this thesis is to create a project documentation of the design of a new office building construction in Fulnek – Jerlochovice. The building is located between residential and industrial zone. It has three aboveground levels. There is a technical backgroud, toilets, archive, rest zone for employees and two openspace offices located on the ground floor. The second floor is designed on the same basis. There are two openspace offices situated on the west side, background for company managment, toilets and day room with kitchen. The third floor is designed as conference room with kit

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O'Dowd, Devin Owen. "Aero-thermal performance of transonic high-pressure turbine blade tips." Thesis, University of Oxford, 2010. http://ora.ox.ac.uk/objects/uuid:e7b8e7d0-4973-4757-b4df-415723e7562f.

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Guan, Juan. "Investigations on natural silks using dynamic mechanical thermal analysis (DMTA)." Thesis, University of Oxford, 2013. http://ora.ox.ac.uk/objects/uuid:c16d816c-84e3-4186-8d6d-45071b9a7067.

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This thesis examines the dynamic mechanical properties of natural silk fibres, mainly from silkworm species Bombyx mori (B. mori) and spider species Nephila edulis, using dynamic mechanical thermal analysis, DMTA. The aim is not only to provide novel data on mechanical properties of silk, but also to relate these properties to the structure and morphology of silk. A systematic approach is adopted to evaluate the effect of the three principal factors of stress, temperature and hydration on the properties and structure of silk. The methods developed in this work are then used to examine commerci

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van, Paridon Andrew. "Thermal modelling and control of high pressure turbine subsystems." Thesis, University of Oxford, 2016. https://ora.ox.ac.uk/objects/uuid:2475deb2-208f-4d1d-83b0-1ff5bd90a79e.

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The control and monitoring of aircraft engine subsystems is one of the leading fields of research for improving overall performance. As engine sophistication increases, more sensor information becomes available to the digital control system, as well as options for active flow control technologies. It is important to develop control systems that can take full advantage of these developments. For instance, active control of the turbine casing can reduce excess rotor blade tip clearance; for every 0.0254mm of clearance eliminated, specific fuel consumption can be reduced by up to 0.1 and turbine

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Pe, Juan-Diego. "On the thermal behaviour of gas turbine filament seals." Thesis, University of Oxford, 2017. https://ora.ox.ac.uk/objects/uuid:1de17ef5-2f1c-4ac2-aae8-90a2efd53e8f.

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Advanced rotating shaft seals have the potential to significantly increase the efficiency and performance of steam and gas turbines. Two such seals, brush and leaf seals, rely on the use of thousands of flexible filaments to close clearances between rotating components and their static casings. The current life of the components is poor compared to the rest of the gas turbine, limiting the seals' deployment, particularly in the jet engine at high temperature and pressure. Poor understanding of the seal installation response to frictional heat generated at the point of filament-rotor contact du

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Stejskalová, Michaela. "Objekt pro požární sport." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2020. http://www.nusl.cz/ntk/nusl-410096.

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The Subject of these thesis is project new sport hall for Fire sport. The building is divided to two parts connected together. First part SO01 is main sport hall, second SO02 is background for sportsmen. The Building SO01 is making from LLENTAB system. The main support elements are from steel thin-walled profile, This part is single-storey building, without basement, build on foundation pad. Building SO02 is making from hollow bricks Heluz, floor structure is from prestressed concrete panels. The building has two floor with flat roof, build on concrete strip foundation. External wall is contac

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Veleba, Jakub. "Objekt věznice v Moravských Budějovicích." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2016. http://www.nusl.cz/ntk/nusl-240437.

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Theme of this diploma thesis is a newly buil building of prison in Moravské Budějovice. The buiding has four ground floors and is without cellar. The structural system of the building is made up of permanent formwork and system Porotherm. Ceiling construction is made up of reinforced hollow core slab. The building is covered with a flat roof.

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Choi, Myeonggeun. "Thermal control of gas turbine casings for improved tip clearance." Thesis, University of Oxford, 2015. https://ora.ox.ac.uk/objects/uuid:14a9ce6a-2af6-4187-afe7-8c6f8e113855.

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A thermal tip clearance control system provides a robust and flexible means of manipulating the closure between the casing and the rotating blade tips in a jet engine, reducing undesirable tip leakage flows. This may be achieved using an impingement cooling scheme on the external casing of the engine in conjunction with careful thermal management of internal over-tip seal segment cavity. For a reduction in thrust specific fuel consumption, the mass flow rate of air used for cooling must be minimised, be at as low a pressure as possible and delivered through a light weight structure surrounding

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Lambourne, Alexis. "Spray forming of Si-Al alloys for thermal management applications." Thesis, University of Oxford, 2007. http://ora.ox.ac.uk/objects/uuid:719651c0-9e12-41c7-ae7b-2abaa1320ea1.

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This thesis describes the processing and characterisation of Al-70Si alloys manufactured by gas atomised spray forming at Sandvik-Osprey (Neath, UK) and Oxford University using a newly commissioned spray forming pilot-plant facility. Spray formed Al-70Si (CE7) provides an attractive balance of thermophysical properties making it suitable for thermal management applications. Microstructural characterisation of CE7 was conducted using optical microscopy, image analysis, electron probe micro analysis (EPMA) and electron backscatter diffraction (EBSD). Microscopy revealed an interpenetrating netwo

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Sui, Tan. "Thermal-mechanical behaviour of the hierarchical structure of human dental tissue." Thesis, University of Oxford, 2014. http://ora.ox.ac.uk/objects/uuid:2c8e9604-ec4b-4cfa-b6df-fff3e6579492.

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Human dental tissues are fascinating nano-structured hierarchical materials that combine organic and mineral phases in an intricate and ingenious way to obtain remarkable combinations of mechanical strength, thermal endurance, wear resistance and chemical stability. Attempts to imitate and emulate this performance have been made since time immemorial, in order to provide replacement (e.g. in dental prosthodontics) or to develop artificial materials with similar characteristics (e.g. light armour). The key objectives of the present project are to understand the structure-property relationships

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Hillson, William Rawstron. "The role of thermal processing and protein oxidation in peanut allergy." Thesis, University of Oxford, 2013. http://ora.ox.ac.uk/objects/uuid:88d64b79-a7e6-4e41-acee-47c215d39f6b.

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Food allergies are an increasing health problem throughout the developed world. Among these, peanut allergy is particularly significant, due to its exceptional severity and frequent lifelong duration. Much of its aetiology remains unclear. In particular, it remains unknown why, unlike other food allergies, peanut allergy incidence correlates poorly with average dietary peanut consumption. A popular explanation for this discrepancy is that peanut allergy is more common in regions where predominantly dry-roasted (DR) peanuts are consumed, leading to speculation that DR-induced chemical modificat

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Warren, Tristram. "Exploring the moon in the thermal infrared : the space environment goniometer." Thesis, University of Oxford, 2015. https://ora.ox.ac.uk/objects/uuid:6c4f5fac-6d82-43f7-9987-d2e57ce18992.

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Measurements of the light scattering behaviour of the regolith of airless bodies in the Solar System, across wavelengths from the visible to the far infrared are essential to understanding their physical properties. This thesis describes the design, build and calibration of a novel instrument to measure the angular directionality of thermal infrared emission from surfaces (direction emissivity, DE). This work was originally motivated by the need for new DE measurements to support analysis of data collected by the thermal and far infrared Diviner Lunar Radiometer instrument (8-400 μm) currently

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Alkandri, Ahmad. "Design and performance assessment of correlation filters for the detection of objects in high clutter thermal imagery." Thesis, University of Sussex, 2014. http://sro.sussex.ac.uk/id/eprint/49954/.

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The research reported in this thesis has examined means of enhancing the performance of the Optimal Trade-off Maximum Average Correlation Height (OT-MACH) filter for target detection in Forward Looking Infra-Red (FLIR) imagery acquired from a helicopter and border security FLIR camera in northern Kuwait. The data acquired with these FLIR sensors allows real-world evaluation of the comparative performance of the various filters that have been developed in the thesis. The results obtained have been quantified using well known performance measures such as Peak to Side-lobe Ratio (PSR) and Total D

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Braun, Marco [Verfasser], Dieter [Gutachter] Braun, and Frank [Gutachter] Cichos. "Optically Controlled Manipulation of Single Nano-Objects by Thermal Fields / Marco Braun ; Gutachter: Dieter Braun, Frank Cichos." Leipzig : Universitätsbibliothek Leipzig, 2016. http://d-nb.info/1240482795/34.

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Virdi, Amandeep Singh. "Aero-thermal performance and enhanced internal cooling of unshrouded turbine blade tips." Thesis, University of Oxford, 2015. https://ora.ox.ac.uk/objects/uuid:62c3e94a-a1ff-47a8-bb81-e870b0013f11.

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The tips of unshrouded, high-pressure turbine blades are prone to significantly high heat loads. The gap between the tip and over-tip casing is the root cause of undesirable over-tip leakage flow that is directly responsible for high thermal material degradation and is a major source of aerodynamic loss within a turbine. Both must be minimised for the safe working and improved performance of future gas-turbines. A joint experimental and numerical study is presented to understand and characterise the heat transfer and aerodynamics of unshrouded blade tips. The investigation is undertaken with t

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Šusták, Jakub. "Vzduchotechnika hotelového objektu." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2013. http://www.nusl.cz/ntk/nusl-226002.

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This thesis addresses the issue of the creation of the internal environment in the hotel. The subject is the evaluation of indoor environments, the selection and design of an appropriate ventilation system. The experimental part deals with the measurement of temperature and humidity with subsequent evaluation according to the applicable legal requirements and comparing with the calculation programmes.

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Kleinerová, Jana. "Optimalizace nákladů provozní fáze stavebních objektů." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2016. http://www.nusl.cz/ntk/nusl-240394.

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The thesis discusses the operating costs and the possibilities for their optimization. Specifically, it focuses on one of the greatest possible operating costs and it's heating costs. In the first part of the thesis are defined in general expenses, the price and the production, operating costs, optimization of these costs, life cycle of buildings and technological methods to improve the thermal and technical properties of the object. Finally, the theoretical part describes the terms for calculating the energy performance of the building and the payback period, which evaluates the effectiveness

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Sharer, Sahir Zalilah. "Investigation of protective mechanisms of organic coatings by thermal testing and electrochemical techniques." Thesis, University of Oxford, 2011. http://ora.ox.ac.uk/objects/uuid:8fb242d3-4836-4082-ae95-b7990b593f8a.

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This work investigated the protection of mechanism of organic coatings on steel exposed to 3&percnt; sodium chloride solution at 50°C, coupled with the use of electrochemical impedance spectroscopy (EIS) to monitor progress of corrosion and degradation of coating. Unlike Walter, EIS measurement was conducted at 50°C as well as after cooling, and measurements at intermediate temperatures have been used to characterize the dependence of the process involved. The proposition that corrosion rate is controlled by the ionic resistance of an organic coating has been tested. EIS results were f

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Trojanowski, Albin S. "Thermomechanical properties of polymers at high rates of strain." Thesis, University of Oxford, 1997. http://ora.ox.ac.uk/objects/uuid:a2c20a83-094d-4293-8c5f-665640c1ce5a.

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-1 were achieved when testing specimens and this rate was obtained using a split Hopkinson pressure bar. A substantial number of preliminary tests were conducted in order to obtain a suitable specimen size which was then used in the temperature measurement process. Quasistatic, intermediate and high strain-rate tests were performed; the last utilised the radiometer for temperature measurement. An Eyring plot was constructed from which fundamental values for activation volumes and enthalpies were obtained. Full descriptions of the testing techniques used have been included and a brief photoelas

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O'Neill, David Patrick. "Mathematical modelling of the effects of hepatic radiofrequency ablation." Thesis, University of Oxford, 2012. http://ora.ox.ac.uk/objects/uuid:b9ff47fd-0e1a-4ca6-a937-a7e4d49841ba.

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Liver cancer is a major cause of death worldwide and the impact that it has is set to increase in the coming decades. More than half a million cases are diagnosed each year and it is likely many more sufferers are dying unidentified in parts of the world with poor healthcare. Survival rates for untreated cases after diagnosis are low with few patients living beyond one year. A key cause for low survival rates being that the standard treatment is surgical resection; fewer than one quarter of patients are suitable for invasive surgery and five year survival rates rarely exceeds 66 %. RadioFreque

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MASSARO, FRANCESCO. "Spectral evolution of the high energy emission from TeV BL Lac Objects." Doctoral thesis, Università degli Studi di Roma "Tor Vergata", 2007. http://hdl.handle.net/2108/381.

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I Blazar sono una delle più enigmatiche classi tra i Nuclei Galattici Attivi (AGN). Secondo lo schema unificato degli AGN queste sorgenti sono interpretate come radio-sorgenti con un getto relativistico che è allineato lungo la linea di vista. I Blazar si dividono principalmente in due classi: la prima, costituita dagli oggetti di tipo BL Lac, con spettri in banda visibile privi di righe, e la seconda composta dai quasar con spettro radio piatto (FSRQ) che invece presentano righe di emissione. L’emissione dei Blazar si estende dalla banda radio fino alla banda dei raggi gamma di più alta

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