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Dissertations / Theses on the topic 'Prehľad'

Author: Grafiati
Published: 28 June 2021
Last updated: 29 July 2025

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1

Zembjaková, Martina. "Prieskum a taxonómia sieťových forenzných nástrojov." Master's thesis, Vysoké učení technické v Brně. Fakulta informačních technologií, 2021. http://www.nusl.cz/ntk/nusl-445488.

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Táto diplomová práca sa zaoberá prieskumom a taxonómiou sieťových forenzných nástrojov. Popisuje základné informácie o sieťovej forenznej analýze, vrátane procesných modelov, techník a zdrojov dát používaných pri forenznej analýze. Ďalej práca obsahuje prieskum existujúcich taxonómií sieťových forenzných nástrojov vrátane ich porovnania, na ktorý naväzuje prieskum sieťových forenzných nástrojov. Diskutované sieťové nástroje obsahujú okrem nástrojov spomenutých v prieskume taxonómií aj niektoré ďalšie sieťové nástroje. Následne sú v práci detailne popísané a porovnané datasety, ktoré sú podklad
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2

Downey, Imelda Louise. "Fouling of crude oil refinery preheat exchangers." Thesis, University of Bath, 1993. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.760645.

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3

Ishiyama, Edward Masato. "Modelling crude oil preheat networks subject to fouling." Thesis, University of Cambridge, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.611842.

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4

Håkansson, Kenneth. "Weld Metal Properties for Extra High Strength Steels." Doctoral thesis, KTH, Production Engineering, 2002. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3403.

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5

Kochar, Yash N. "Laminar flame speed and stretch sensitivity of hydrocarbon fuels at high preheat, pressure and vitiation." Diss., Georgia Institute of Technology, 2014. http://hdl.handle.net/1853/52216.

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This thesis investigates the laminar flame speed of C₁-C₃ alkanes and their binary mixtures at conditions of interest in natural gas based gas turbines viz. high temperature, pressure and dilution. Laminar flame speed has been found useful not only for validating chemical kinetics mechanisms but also for developing empirical scaling laws for practical combustion systems. The thesis addresses the lack of laminar flame speed data of C₁-C₃ alkanes at preheat (300-650 K), pressure (1-10 atm) and significant oxidizer dilution (15-21 vol% O₂). Over 400 measurements are reported over a wide range of
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6

Vlach, Jan. "Vliv svařovacích parametrů na kvalitu a mechanické vlastnosti svarového spoje." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-402552.

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The Master´s thesis focuses on the possibilities of using MAG welding on carbon steel 1.1221(C60E) without using preheating. It researches the effect of basic welding parameters on the final characteristics with the goal being to find a welding seam without defects, without using preheating.
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7

Wu, Yi. "Experimental investigation of laminar flame speeds of kerosene fuel and second generation biofuels in elevated conditions of pressure and preheat temperature." Thesis, Rouen, INSA, 2016. http://www.theses.fr/2016ISAM0011/document.

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La vitesse de flamme laminaire représente une grandeur physique clé à mesurer car elle permet d'obtenir des données fondamentales sur la réactivité, la diffusivité et l'exothermicité du carburant. Elle est également un des paramètres utilisés pour le développement et la validation des mécanismes réactionnels détaillés ainsi que pour la modélisation de la combustion turbulente. Bien que cette grandeur physique ait fait l'objet de nombreuses études expérimentales depuis plusieurs décennies, sa méconnaissance sur des carburants multi-composant dans des conditions haute-pression et haute-températu
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8

Nöbauer, Henrik. "En utvärdering av metoder för att bestämma den förhöjda arbetstemperaturen vid svetsning av S355J2." Thesis, Karlstads universitet, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013), 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-36702.

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En vanlig orsak till brott i svetsade kolstålskonstruktioner kan härledas till små sprickbildningar som uppstår i svetsgodset eller det område av grundmaterialet som har påverkats strukturellt av energin från svetsprocessen, även kallad HAZ. Dessa sprickor uppstår ofta timmar eller dagar efter avslutad svetsning och beror på en kombination av väte, en hård och spröd mikrostruktur och närvaro av spänningar. För att undvika dessa sprickor kan man förvärma materialet innan svetsning. Den förhöjda arbetstemperaturen ger en långsammare svalning vilken minskar risken för marten
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9

Natarajan, Jayaprakash. "Experimental and numerical investigation of laminar flame speeds of H₂/CO/CO₂/N₂ mixtures." Diss., Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/22685.

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Coal derived synthetic gas (syngas) fuel is a promising solution for today s increasing demand for clean and reliable power. Syngas fuels are primarily mixtures of H2 and CO, often with large amounts of diluents such as N2, CO2, and H2O. The specific composition depends upon the fuel source and gasification technique. This requires gas turbine designers to develop fuel flexible combustors capable of operating with high conversion efficiency while maintaining low emissions for a wide range of syngas fuel mixtures. Design tools often used in combustor development require data on various fundamen
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10

Bertok, Tibor. "Problematika zavádění ADS-B ve vzdušném prostoru Evropy a České republiky." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231049.

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This diploma thesis focuses on implementation issues of ADS-B in the airspace of Czech republic and Europe. Our introduction contains a review of necessity of this system and describes ADS-B. The next part addresses the legislation of this system in detail, also sums up the state of its implementation and the plan of implementation. Our conclusion shows the problems connected with the system , offers their solution and views for the future.
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11

Kuntz, Sarah Louise. "Feasibility of Attaining Fully Equiaxed Microstructure through Process Variable Control for Additive Manufacturing of Ti-6Al-4V." Wright State University / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=wright1464557846.

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12

Яновський, С. Р. "Удосконалення технології перекачування нафти з урахуванням її неньютонівських властивостей". Thesis, Івано-Франківський національний технічний університет нафти і газу, 2010. http://elar.nung.edu.ua/handle/123456789/4414.

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У результаті експериментальних досліджень виявлені закономірності впливу сезонних чинників та температури підігріву на реологічні властивості високов’язкої швидкозастигаючої долинської нафти. Обґрунтовані границі застосування реологічних моделей Шведова-Бінгама і Балклі-Гершеля для опису реологічної поведінки долинської нафти в трубопроводі. Одержані аналітичні залежності граничного динамічного напруження зсуву і пластичної в’язкості від температури підігріву і робочої температури для кожного місяця перекачування. Створена методологія трубопровідної гідродинаміки в’язкопластичних та нелі-нійно
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13

Procházka, Jan. "Vliv opravného zavařování za tepla na změnu struktury a tvrdost odlitků z litiny s lupínkovým grafitem." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-400486.

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The master‘s thesis deals with the influence of the thermal cycle of welding with preheat on castings made of grey cast iron to change the hardness. The thesis deals with the classification of graphitic cast irons, their structure, properties and influences they have on the formation and transformation of the structure. Emphasis is placed on chemical composition and structure stability at elevated temperatures. The practical part deals with the investigation of the effects of casting repair on the decrease of hardness measured in the foundry Heunisch Brno.
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14

Kao, Han, and 高漢. "The Thermal-Structural Analysis of Preheat Melting Nozzle using Finite Element Method." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/71764802293817114455.

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碩士<br>國立中興大學<br>精密工程學系所<br>102<br>Due to high-tech products day by day tired progress requirements for product weight, close to compact size to facilitate easy to carry, so thin demand for high-quality steel increased rapidly. Nozzle is a thin plate steel manufacturing segment after the manufacturing process high-temperature fluid liquid steel, slag, and add gas additive, in the crucible or converter add to the tools necessary process, but also to ensure the smooth progress of the foundation smelting. To prolong the life of the Melting Nozzle to reduce production costs, improve economic effic
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15

(9148682), Marlon D. Walls Jr. "Investigating the Ability to Preheat and Ignite Energetic Materials Using Electrically Conductive Materials." Thesis, 2020.

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<div>The work discussed in this document seeks to integrate conductive additives with energetic material systems to offer an alternative source of ignition for the energetic material. By utilizing the conductive properties of the additives, ohmic heating may serve as a method for preheating and igniting an energetic material. This would allow for controlled ignition of the energetic material without the use of a traditional ignition source, and could also result in easier system fabrication.</div><div>For ohmic heating to be a viable method of preheating or igniting these conductive energetic
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16

Huang, Sheng-Rung, and 黃聖容. "The Experimental Study on Biogas Power Generation Enhanced by Using Waste Heat to Preheat Inlet Gases." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/50596607923605536285.

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碩士<br>國立交通大學<br>機械工程學系<br>99<br>This research used a 30kW-generator in Taiwan Sugar swine farm in Taichung to collect data for the long-term electricity generation. This study is an continous effort of Lin’s work [3], which carried out the electricity generation project by using 60% methane concentration of biogas in a small swine farm in Miaoli. This experimental study, using 73% methane concentration of biogas, consisted of three parts. Firstly, investigate the effect of biogas supply rate together with the different excess air ratios on generator performance. Secondly, make a comparison wit
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17

Cianfrone, Christian Michelangelo. "More sustainable masonry facades: Assessing the potential to preheat ventilation air using a solar dynamic buffer zone." 2007. http://link.library.utoronto.ca/eir/EIRdetail.cfm?Resources__ID=788846&T=F.

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18

(9721637), Carl Kuang Yu Shi. "Electric Infrared Die heating for Aluminum High Pressure Die Casting." Thesis, 2020.

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Casting is a substantial part of modern manufacturing and production, typically used in the production of aluminum alloys. The high pressure die casting process is extremely suitable for mass production. Due to the high volume, wasted time and resources during the production cycle become more significant. Aluminum die castings require the die to be at elevated temperatures to produce acceptable castings. When the inner surfaces of a die are cold, the outer shell of the casting will cool too rapidly, and solidification of the outer shell occurs before the aluminum has time to uniformly fill the
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