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Andersson, Maria. "Fiolpedagoger inom genren svensk folkmusik : En intervjustudie om undervisningsmetoder och pedagogiska förhållningssätt." Thesis, Karlstads universitet, Institutionen för konstnärliga studier, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-34444.
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Syftet med denna studie är att undersöka om det finns grundläggande skillnader i undervisningsmetoder och pedagogiska förhållningssätt mellan fiolpedagoger inom genren svensk folkmusik. Jämförelsen fokuserar på lärare med respektive utan formell musiklärarexamen inom genren. Fyra kvalitativa telefonintervjuer har legat till grund för undersökningen där de med respektive utan examen representerats av två personer var. Den teoretiska utgångspunkten för studien har varit det sociokulturella perspektivet. Studiens resultat visar att det är mer som förbinder än som skiljer de fyra pedagogerna åt. Här finns ett betonande av gehörsundervisning, spelglädje och musikalisk funktion, vilket hör till traditionen i den svenska folkmusikgenren. Detta är en stor del av det sociokulturella perspektivet där tradition, sociala sammanhang och fysiska artefakter är centralt. Dock är det möjligt att se ett tydligare inslag av institutionaliserade kunskaper bland de med formell lärarexamen. Här finns ett större användande av noter och en något mer uttalad progression i pedagogiken. Här finns också en större öppenhet för genrebredd, medan de utan musiklärarexamen mer renodlat inriktar sig på svensk folkmusik och vad genrens historik grundas på.The purpose of this study is to investigate whether there are fundamental differences in methodologies and pedagogical approach between violin pedagogues of the genre of Swedish folk music. The comparison focuses on teachers with and without formal music teacher education in the genre. Four qualitative telephone interviews were the basis for the study, where two people each represented those with and without a degree. The theoretical starting point for the study has been the socio-cultural perspective. The results demonstrate that there is more connecting than separating the four teachers ate. Here is an emphasis on ear training teaching, joy and musical function, which belongs to the tradition of the Swedish folk music genre. This way of working is connected to the socio-cultural perspective, where tradition, social context, and physical artefacts are in focus. However, it is possible to see a clearer part of institutionalized knowledge among the teachers with formal teaching qualification. These teachers have a greater use of notes and a slightly more pronounced progression in education. They also have a greater openness to all music, while those without a music teacher education more purely focuses on Swedish folk music and what the genre's history is based on.
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Azhar, Mueed [Verfasser], and Jan G. [Akademischer Betreuer] Korvink. "Simulation of NMR experiments using particle simulation methods." Freiburg : Universität, 2018. http://d-nb.info/1155722485/34.
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Kupferer, Stephan. "Anwendung der Total-Least-Squares-Technik bei geodätischen Problemstellungen." Karlsruhe : Univ.-Verl. Karlsruhe, 2005. http://deposit.d-nb.de/cgi-bin/dokserv?idn=97644576X.
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Karger, Marius [Verfasser], and Otto von [Akademischer Betreuer] Estorff. "Fluid-Struktur-Wechselwirkung in der Energie-Finite-Elemente-Methode / Marius Karger ; Betreuer: Otto von Estorff." Hamburg : Universitätsbibliothek der Technischen Universität Hamburg-Harburg, 2017. http://d-nb.info/1137555262/34.
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Tsotskas, Christos. "Multi-objective optimisation methods applied to aircraft techno-economic and environmental issues." Thesis, Cranfield University, 2016. http://dspace.lib.cranfield.ac.uk/handle/1826/12354.
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Engineering methods that couple multi-objective optimisation (MOO) techniques with high fidelity computational tools are expected to minimise the environmental impact of aviation while increasing the growth, with the potential to reveal innovative solutions. In order to mitigate the compromise between computational efficiency and fidelity, these methods can be accelerated by harnessing the computational efficiency of Graphic Processor Units (GPUs). The aim of the research is to develop a family of engineering methods to support research in aviation with respect to the environmental and economic aspects. In order to reveal the non-dominated trade-o_, also known as Pareto Front(PF), among conflicting objectives, a MOO algorithm, called Multi-Objective Tabu Search 2 (MOTS2), is developed, benchmarked relative to state-of-the-art methods and accelerated by using GPUs. A prototype fluid solver based on GPU is also developed, so as to simulate the mixing capability of a microreactor that could potentially be used in fuel-saving technologies in aviation. By using the aforementioned methods, optimal aircraft trajectories in terms of flight time, fuel consumption and emissions are generated, and alternative designs of a microreactor are suggested, so as to assess the trade-offs between pressure losses and the micro-mixing capability. As a key contribution to knowledge, with reference to competitive optimisers and previous cases, the capabilities of the proposed methodology are illustrated in prototype applications of aircraft trajectory optimisation (ATO) and micromixing optimisation with 2 and 3 objectives, under operational and geometrical constraints, respectively. In the short-term, ATO ought to be applied to existing aircraft. In the long-term, improving the micro-mixing capability of a microreactor is expected to enable the use of hydrogen-based fuel. This methodology is also benchmarked and assessed relative to state-of-the-art techniques in ATO and micro-mixing optimisation with known and unknown trade-offs, whereas the former could only optimise 2 objectives and the latter could not exploit the computational efficiency of GPUs. The impact of deploying on GPUs a micro-mixing _ow solver, which accelerates the generation of trade-off against a reference study, and MOTS2, which illustrates the scalability potential, is assessed. With regard to standard analytical function test cases and verification cases in MOO, MOTS2 can handle the multi-modality of the trade-o_ of ZDT4, which is a MOO benchmark function with many local optima that presents a challenge for a state-of-the-art genetic algorithm for ATO, called NSGAMO, based on case studies in the public domain. However, MOTS2 demonstrated worse performance on ZDT3, which is a MOO benchmark function with a discontinuous trade-o_, for which NSGAMO successfully captured the target PF. Comparing their overall performance, if the shape of the PF is known, MOTS2 should be preferred in problems with multi-modal trade-offs, whereas NSGAMO should be employed in discontinuous PFs. The shape of the trade-o_ between the objectives in airfoil shape optimisation, ATO and micro-mixing optimisation was continuous. The weakness of MOTS2 to sufficiently capture the discontinuous PF of ZDT3 was not critical in the studied examples … [cont.].
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Syal, Gagan [Verfasser]. "CAE - PROCESS AND NETWORK : A methodology for continuous product validation process based on network of various digital simulation methods [[Elektronische Ressource]] / Gagan Syal." Karlsruhe : KIT Scientific Publishing, 2014. http://www.ksp.kit.edu.
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Holl, Stefan [Verfasser]. "Methoden für die Bemessung der Leistungsfähigkeit multidirektional genutzter Fußverkehrsanlagen / Stefan Holl." Wuppertal : Universitätsbibliothek Wuppertal, 2016. http://d-nb.info/1124478175/34.
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Jordan, André [Verfasser]. "Methoden und Werkzeuge für den Wissenstransfer in der Bionik / André Jordan." München : GRIN Verlag, 2010. http://d-nb.info/118802728X/34.
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Düsing, Martin [Verfasser]. "Simulation of bainitic transformation with the phase field method / Martin Düsing." Paderborn : Universitätsbibliothek, 2018. http://d-nb.info/1171305648/34.
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Hörmann, Christine. "Die Delphi-Methode in der Studiengangsentwicklung Entwicklung und Erprobung eines Modells zur empirisch gestützten Studiengangsentwicklung /." [S.l. : s.n.], 2007. http://nbn-resolving.de/urn:nbn:de:bsz:747-opus-444.
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Hánová, Kristína. "Využití klasických analytických technik při kontrole základních parametrů kvality vína." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2009. http://www.nusl.cz/ntk/nusl-216486.
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Standard analytical technics are used by the inspection of basic parameters of wine quality in the prezented graduation theses. Theoretical patr contains short description of viniculture history. Description of elementary bunch of grapes stage of processing and wine production from stum pressing untill bottling follow. There is short description of wine diseases and wine defekt, too. Attention paid to quality assessment. Experimental part is divided to 2 parts. The first part contains determination of four wines qualitative parameters value. Analysis are focused on final wine processing phase, e.g. wine filtration, wine clarification and stabilisation, wine bottling. Data evaluation of these four sort of wine get no basic parameters differences. Parameters value differences are small but fundamentaly conducive to wine enhance quality.
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Moudrak, Alexandre N. Verfasser], Bernd [Akademischer Betreuer] [Eissfeller, Günter W. [Akademischer Betreuer] Hein, and Arno [Akademischer Betreuer] Schroth. "Time dissemination and synchronization methods to support Galileo timing interfaces / Alexandre N. Moudrak. Universität der Bundeswehr München, Fakultät für Bauingenieur- und Vermessungswesen. Gutachter: Bernd Eissfeller ; Günter W. Hein ; Arno Schroth. Betreuer: Bernd Eissfeller." Neubiberg : Universitätsbibliothek der Universität der Bundeswehr München, 2008. http://d-nb.info/1064884954/34.
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Moudrak, Alexandre N. [Verfasser], Bernd [Akademischer Betreuer] Eissfeller, Günter W. Akademischer Betreuer] Hein, and Arno [Akademischer Betreuer] [Schroth. "Time dissemination and synchronization methods to support Galileo timing interfaces / Alexandre N. Moudrak. Universität der Bundeswehr München, Fakultät für Bauingenieur- und Vermessungswesen. Gutachter: Bernd Eissfeller ; Günter W. Hein ; Arno Schroth. Betreuer: Bernd Eissfeller." Neubiberg : Universitätsbibliothek der Universität der Bundeswehr München, 2008. http://d-nb.info/1064884954/34.
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Moudrak, Alexandre N. [Verfasser], Bernd [Akademischer Betreuer] Eissfeller, Günter W. [Akademischer Betreuer] Hein, and Arno [Akademischer Betreuer] Schroth. "Time dissemination and synchronization methods to support Galileo timing interfaces / Alexandre N. Moudrak. Universität der Bundeswehr München, Fakultät für Bauingenieur- und Vermessungswesen. Gutachter: Bernd Eissfeller ; Günter W. Hein ; Arno Schroth. Betreuer: Bernd Eissfeller." Neubiberg : Universitätsbibliothek der Universität der Bundeswehr München, 2008. http://d-nb.info/1064884954/34.
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Dick, Tonio. ""Vom Bekannten zum Unbekannten" : Psycho-physische Bildung am Beispiel der F.M. Alexander-Technik in Bezugnahme zum Fachgebiet Rhythmik/Musik- und Bewegungspädagogik /." Essen, Ruhr : Die Blaue Eule, 2008. http://deposit.d-nb.de/cgi-bin/dokserv?id=3190013&prov=M&dok%5Fvar=1&dok%5Fext=htm.
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Knauf, Marcus. "Die Zukunft der deutschen Holzindustrie : Anwendung der Delphi-Methode zur Entwicklung eines Szenarios zum Profil der deutschen Holzindustrie im Jahr 2020 /." Hamburg : Wiedebusch, 2006. http://www.gbv.de/dms/zbw/520591216.pdf.
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Göpfert, Jan. "Modulare Produktentwicklung zur gemeinsamen Gestaltung von Technik und Organisation ; Theorie, Methodik, Gestaltung." Norderstedt Books on Demand, 2009. http://deposit.d-nb.de/cgi-bin/dokserv?id=3280885&prov=M&dok_var=1&dok_ext=htm.
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Gülker, Silke. "Evaluation und politisches Lernen diskursive Zukunftsforschung als Methode der Politikevaluation." Baden-Baden Nomos, 2007. http://d-nb.info/987918524/04.
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Gülker, Silke. "Evaluation und politisches Lernen : diskursive Zukunftsforschung als Methode der Politikevaluation /." Baden-Baden : Nomos, 2008. http://d-nb.info/987918524/04.
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Lee, Chai Siah. "Extraction of bio-flocculant from okra using hydrothermal and microwave extraction methods combined with a techno-economic assessment." Thesis, University of Nottingham, 2017. http://eprints.nottingham.ac.uk/43270/.
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Since the usage of chemical flocculants especially polyacrylamides is closely related with environmental pollution and health hazards, synthesis of environmental friendly and economic viable bio-flocculants that exhibit high flocculating efficiency is highly desirable. The production of natural bio-flocculants extracted from plant is urgently needed as an alternative to chemical flocculants due to their inherent low toxicity, biodegradability and low environmental footprint. In this study, a plant-based bio-flocculant was extracted from Hibiscus/Abelmoschus esculentus (okra) with conventional hydrothermal extraction (CHE) and microwave assisted extraction (MAE) processes by using water as solvent. The aims of this work were to produce the bio-flocculant through environmentally friendly and economically feasible process, optimise its extraction yield, optimise its flocculating and sludge dewatering properties, and also minimise its production cost in order to be comparable to chemical flocculants (polyacrylamides) from perspectives of quality and cost. The extraction efficiencies of bio-flocculants were justified by the optimised yields, the flocculating abilities were evaluated by the removal of suspended solids (SS) and turbidity after flocculation process and sludge volume index (SVI) whereas the sludge dewatering abilities were assessed by SS removal after filtration and water recovery. Single factor experimental design was employed to study the effects of extraction temperature, time, solvent loading, and agitation speed and particle size on yield, flocculating and dewatering properties of bio-flocculants. The influence of extraction parameters to yield and the reliability of the experimental data were verified by analysing the single factor experimental results with response surface methodology. Results showed that extraction yields were significantly affected by extraction temperature and time and solvent loading. Prolonged extraction (few hours) at high temperature (60-90 ˚C) decreased the yields of bio-flocculants extracted with CHE method. Conversely, extraction at high temperature was favourable for MAE method to raise the yield due to short extraction time in minutes. Flocculating abilities of bio-flocculants were not significantly affected by the extraction conditions whilst the sludge dewatering abilities were mainly influenced by the temperature and particle size. High extraction temperature at ≥ 70 ˚C and the smallest okra particle size at 1mm were the crucial conditions for extraction of bio-flocculants with high dewatering abilities which showed > 95% of SS removal after filtration and ≥75% of water recovery. The optimised yield of CHE at 25.9% was obtained at 50 ˚C, 2 hours, solvent loading of 2.5 w/w and agitation at 200 rpm. On the other hand, microwave-extracted bio-flocculants were best extracted at 90 ˚C, 10 minutes, and solvent loading of 3.5 w/w and okra particle size at 1mm to get the optimised yield at 48.7%. These results revealed that the extraction yield has been enhanced by 87.8% by using MAE method and the extraction time was markedly reduced from hours to minutes. This study uses a combination of empirical observations and an analysis of mass transfer behaviour to yield new insights into the mechanism of MAE. Enhancements in extraction rate and yield achieved by microwave extraction were observed experimentally compared with hydrothermal extraction at temperatures in excess of 50 ˚C, however at lower temperatures there was no observable difference between the two processes. A step-change in extraction yield between microwave and hydrothermal processes was shown to be caused by selective heating. A temperature gradient of the order of 1 ˚C is sufficient to reduce the water chemical potential within the plant cell structure, which causes diffusion of water solvent into plant cell such that internal plant cell pressures can increase to the point where disruption occurs. These findings demonstrate the need to operate microwave extraction processes at a temperature that enables selective heating, and a newly-proposed mass transfer phenomenon that could have wider positive implications for extraction and leaching processes. The bio-flocculants extracted with both methods were applied in flocculation and sludge dewatering without pH alteration and addition of coagulant. Efficient flocculating abilities were attained with >99% of SS and turbidity removal and < 10 mg/L of SVI. However, microwave extracted bio-flocculants were shown to exhibit higher dewatering abilities than hydrothermal extracted bio-flocculants. The bio-flocculants displayed the results of >95% SS removal after filtration and 75% water recovery during sludge dewatering at dosage of 30 mg/L, and was shown to be comparable to or even better than polyacrylamides due to achievement of higher water recovery at the same dosage. Dried bio-flocculants were found to have higher dewatering abilities than aqueous bio-flocculants, probably because drying at low temperature (40 ˚C) has minimised the moisture content and extended the shelf life of bio-flocculants. Biopolymer bridging was preliminary predicted as the plausible bio-flocculation mechanism. The economic feasibility of production of industrial scale bio-flocculant was investigated and the production process was modelled by using SuperPro Designer v9.0 simulation software. The MAE process in continuous mode was verified to be more economically viable than CHE process either in batch or continuous mode if the production scale was beyond 15 tonne/year. Sensitivity analysis for continuous microwave process was conducted and the results indicated the strong influences of annual production and extraction yield followed by raw material okra price on the unit production cost. Continuous microwave process with extraction conditions at 90 ˚C, 10 minutes and solvent loading of 3.5 w/w was identified as the optimised scheme for production of industrial scale bio-flocculant at the lowest production cost. The estimated selling price of aqueous and dried bio-flocculants for an annual production of 220 tonne/year were 41 and 52 $/kg respectively, and was shown to be lower than food grade bio-flocculants but higher than polyacrylamides. This work has clearly showed that okra bio-flocculant could offer a feasible and sustainable alternative to synthetic flocculants for water treatment and sludge dewatering applications due to its high efficiency in flocculating and dewatering, and can be extracted using only water as a solvent, minimising the environmental footprint of the extraction process.
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Suranová, Mária. "Stanovení obsahu benzo(a)pyrénu v uzených masných výrobcích s využitím moderních izolačních technik." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2013. http://www.nusl.cz/ntk/nusl-216927.
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In this work a new simplified procedure for isolation and determination of PAH in smoked meat products was developed. This procedure is using ASE as selective extraction technique. Its principle is addition of silicagel activated during 18 hours at 140 °C directly to the extraction cell in ratio 10 g to 1 g of homogenized sample. In the next step the sample is extracted by n-hexane at 100 °C and 10 MPa for three 10 minutes static extraction cycles. The flush volume is 60 % and the purge time 120 sec. During the extraction silicagel adsorb koextracted lipids and thus the obtained extract is suitable for immediate HPLC-FLD analysis. On the contrary, the classical extraction procedures with nonpolar solvent require difficult purification of extract for removal of unwanted lipids. Mostly applied techniques here are GPC and SPE. The new procedure was validated for determination of B[a]P as well as for determination of 4 PAH (B[a]A, CHR, B[b]F, B[a]P) in smoked sausages. It meets all requirements to be set by Regulation (EC) No 333/2007, respective by new Regulation (EC) No 836/2011. After the method validation, the content of 4 PAH was investigated in twelve samples of various smoked sausages manufactured in Slovakia. Two analyzed products showed high PAH levels exceeding maximum legislation limits set for B[a]P as well as for sum of 4 PAH by Regulation (EC) No 835/2011.
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Kořínek, Radim. "Implementace Dixonových technik pro preklinické MR zobrazování na vysokých polích." Doctoral thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2015. http://www.nusl.cz/ntk/nusl-233679.
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Preklinické magneticko-rezonanční (MR) zobrazování na malých zvířatech je velmi aktuální a vyžaduje, vzhledem k rozměrům těchto zvířat, vyšší citlivost. Vyšší citlivosti lze dosáhnout použitím MR systému s vysokým základním magnetickým polem (např. 4,7 T a výše). Vyšší citlivost přináší výhody v podobě možnosti vyššího rozlišení, lepší poměr signál-šum, větší chemický posuv, prodloužení longitudinální relaxace (T1), atd. Na druhou stranu vyšší magnetické pole znamená větší deformace základního magnetického pole na rozhraních tkání s rozdílnou susceptibilitou a zkrácení transverzální relaxace (T2). Tuková tkáň je významně zastoupena v lidském těle a primárně sloužící pro uchovávání energie ve formě tuků. Tukovou tkáň lze rozdělit na hnědou a bílou tukovou tkáň. Hnědá tuková tkáň se vyskytuje hlavně u novorozenců, ale může být ve velmi malém množství také u dospělých jedinců. Bílá tuková tkáň je určena pro ukládání tuků, které slouží jako zdroj energie. Kromě toho bílá tuková tkáň produkuje adipokiny, hormony a mnoho dalších látek důležitých pro náš metabolizmus. Tuk lze obecně považovat jako biomarker při určitých nemocech (obezita, steatóza jater, a další). Z tohoto důvodu je kvantifikace tuku velmi důležitá pro správnou diagnózu. V MR zobrazování je speciální skupina metod pro separaci vody a tuku. Tyto metody se nazývají Dixonovy metody a jejich princip je založen na chemickém posuvu. V této práci je popsána nová T2-váhovaná sekvence pro Dixonovu akvizici (Kapitola 5.3). Navržená sekvence je z hlediska akviziční doby velmi efektivní a řadí se mezi tříbodové Dixonovy (3PD) techniky. Nově navržená sekvence fast triple spin echo Dixon (FTSED) vychází z původní sekvence rychlého spinového echa (FSE). Modifikací původní sekvence FSE vedla ke vzniku nové sekvence FTSED, která umožňuje získat tři obrazy během jediné akvizice, bez toho aniž bychom prodloužili celkovou dobu měření. Sekvence byla úspěšně implementována na 9,4 T MRI systém na Ústavu přístrojové techniky v Brně. Získaná data byla pak zpracována iterativně pomocí algoritmu IDEAL (iterative decomposition of water and fat with echo asymmetry and least-squares estimation). Výsledkem jsou separátní obrazy vody a tuků, z kterých lze vypočítat mapy frakce tuku (FF-mapy). Sekvence byla ověřena na fantomech a poté byla odzkoušena potkanovi. Úspěšná implementace této metody na 9,4 T MRI systému znamená, že může být použita také na MR zobrazovacích systémech s nižšími magnetickými poli.
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Shovlin, Paul W. "Writing Bytes: Articulating a Techno-critical Pedagogy." Ohio : Ohio University, 2010. http://www.ohiolink.edu/etd/view.cgi?ohiou1268168526.
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A, Aljundi Rachelle. "Bildklassresa mellan konststilar och epoker : om bildlärares konstsyn och teknikval i grundskolans bildundervisning." Thesis, Umeå universitet, Institutionen för estetiska ämnen i lärarutbildningen, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-97653.
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The purpose of this study was to to examine what teachers think about visual art and how the learning process in this subject does look like. To answer these issues, I made interviews with five teachers of visual art from different schools, and I examined several examples of pupils’ artworks. The stories of the teachers were analyzed in relation to governing documents and with assumptions from sociocultural theory, postmodernism and pedagogical - aesthetic research as theoretical point of view. By the qualitative interview method, the observations of the pupil’s artworks, and by the analysis of the interviews with the teachers, I have come to the conclusion that teachers think differently about art but they try to keep themselves in line with the national governing documents. Its affects aspects of disciplines, styles, techniques and medium that is exemplified by the pupil’s art works, and it points out similarities and differences between the pupil’s art works and between the teachers when teaching visual art.
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Donfack, Simplice. "Methods and algorithms for solving linear systems of equations on massively parallel computers." Thesis, Paris 11, 2012. http://www.theses.fr/2012PA112042.
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Les processeurs multi-cœurs sont considérés de nos jours comme l'avenir des calculateurs et auront un impact important dans le calcul scientifique. Cette thèse présente une nouvelle approche de résolution des grands systèmes linéaires creux et denses, qui soit adaptée à l'exécution sur les futurs machines pétaflopiques et en particulier celles ayant un nombre important de cœurs. Compte tenu du coût croissant des communications comparé au temps dont les processeurs mettent pour effectuer les opérations arithmétiques, notre approche adopte le principe de minimisation des communications au prix de quelques calculs redondants et utilise plusieurs adaptations pour atteindre de meilleures performances sur les machines multi-cœurs. Nous décomposons le problème à résoudre en plusieurs phases qui sont ensuite mises en œuvre séparément. Dans la première partie, nous présentons un algorithme basé sur le partitionnement d'hypergraphe qui réduit considérablement le remplissage ("fill-in") induit lors de la factorisation LU des matrices creuses non symétriques. Dans la deuxième partie, nous présentons deux algorithmes de réduction de communication pour les factorisations LU et QR qui sont adaptés aux environnements multi-cœurs. La principale contribution de cette partie est de réorganiser les opérations de la factorisation de manière à réduire la sollicitation du bus tout en utilisant de façon optimale les ressources. Nous étendons ensuite ce travail aux clusters de processeurs multi-cœurs. Dans la troisième partie, nous présentons une nouvelle approche d'ordonnancement et d'optimisation. La localité des données et l'équilibrage des charges représentent un sérieux compromis pour le choix des méthodes d'ordonnancement. Sur les machines NUMA par exemple où la localité des données n'est pas une option, nous avons observé qu'en présence de perturbations systèmes (" OS noise"), les performances pouvaient rapidement se dégrader et devenir difficiles à prédire. Pour cela, nous présentons une approche combinant un ordonnancement statique et dynamique pour ordonnancer les tâches de nos algorithmes. Nos résultats obtenues sur plusieurs architectures montrent que tous nos algorithmes sont efficaces et conduisent à des gains de performances significatifs. Nous pouvons atteindre des améliorations de l'ordre de 30 à 110% par rapport aux correspondants de nos algorithmes dans les bibliothèques numériques bien connues de la littératureMulticore processors are considered to be nowadays the future of computing, and they will have an important impact in scientific computing. In this thesis, we study methods and algorithms for solving efficiently sparse and dense large linear systems on future petascale machines and in particular these having a significant number of cores. Due to the increasing communication cost compared to the time the processors take to perform arithmetic operations, our approach embrace the communication avoiding algorithm principle by doing some redundant computations and uses several adaptations to achieve better performance on multicore machines.We decompose the problem to solve into several phases that would be then designed or optimized separately. In the first part, we present an algorithm based on hypergraph partitioning and which considerably reduces the fill-in incurred in the LU factorization of sparse unsymmetric matrices. In the second part, we present two communication avoiding algorithms that are adapted to multicore environments. The main contribution of this part is to reorganize the computations such as to reduce bus contention and using efficiently resources. Then, we extend this work for clusters of multi-core processors. In the third part, we present a new scheduling and optimization approach. Data locality and load balancing are a serious trade-off in the choice of the scheduling strategy. On NUMA machines for example, where the data locality is not an option, we have observed that in the presence of noise, performance could quickly deteriorate and become difficult to predict. To overcome this bottleneck, we present an approach that combines a static and a dynamic scheduling approach to schedule the tasks of our algorithms.Our results obtained on several architectures show that all our algorithms are efficient and lead to significant performance gains. We can achieve from 30 up to 110% improvement over the corresponding routines of our algorithms in well known libraries
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Jelínková, Jana. "Rozpoznání hudebního slohu z orchestrální nahrávky za pomoci technik Music Information Retrieval." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2020. http://www.nusl.cz/ntk/nusl-413256.
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As all genres of popular music, classical music consists of many different subgenres. The aim of this work is to recognize those subgenres from orchestral recordings. It is focused on the time period from the very end of 16th century to the beginning of 20th century, which means that Baroque era, Classical era and Romantic era are researched. The Music Information Retrieval (MIR) method was used to classify chosen subgenres. In the first phase of MIR method, parameters were extracted from musical recordings and were evaluated. Only the best parameters were used as input data for machine learning classifiers, to be specific: kNN (K-Nearest Neighbor), LDA (Linear Discriminant Analysis), GMM (Gaussian Mixture Models) and SVM (Support Vector Machines). In the final chapter, all the best results are summarized. According to the results, there is significant difference between the Baroque era and the other researched eras. This significant difference led to better identification of the Baroque era recordings. On the contrary, Classical era ended up to be relatively similar to Romantic era and therefore all classifiers had less success in identification of recordings from this era. The results are in line with music theory and characteristics of chosen musical eras.
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Helf, Clemens [Verfasser]. "Eine Finite-Volumen-Methode in allgemeinen Zellen für die Euler-Gleichungen mit integrierter selbst-adaptiver Gittergenerierung / vorgelegt von Clemens Helf. Rechenzentrum, Universität Stuttgart." Stuttgart : RUS [u.a.], 2002. http://d-nb.info/964309637/34.
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Seisenberger, Stephan [Verfasser]. "Methode zur Bewertung der Umsetzbarkeit von Produktinnovationen im Fahrzeug aus techno-ökonomischer Sicht - verdeutlicht am Beispiel der Brennstoffzellentechnologie / Stephan Seisenberger." München : Verlag Dr. Hut, 2016. http://d-nb.info/1106593588/34.
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Sydes, Daniel [Verfasser], and Carolin [Akademischer Betreuer] Huhn. "Instrumental and method development for multidimensional electrophoretic separations – coupling of capillary isoelectric focusing to mass spectrometry / Daniel Sydes ; Betreuer: Carolin Huhn." Tübingen : Universitätsbibliothek Tübingen, 2017. http://d-nb.info/1199615242/34.
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Sabisch, Winfried [Verfasser]. "Dreidimensionale numerische Simulation der Dynamik von aufsteigenden Einzelblasen und Blasenschwärmen mit einer Volume-of-Fluid-Methode / Winfried Sabisch." Karlsruhe : KIT-Bibliothek, 2000. http://d-nb.info/1013897153/34.
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Anderson-Pence, Katie L. "Examining the Impact of DIfferent Virtual Manipulative Types on the Nature of Students' SMall-Group Discussions: An Exploratory Mixed-Methods Case Study of Techno-Mathematical Discourse." DigitalCommons@USU, 2014. https://digitalcommons.usu.edu/etd/2176.
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This study examined the influence of different virtual manipulative types on the nature of students’ techno-mathematical discourse (TMD) when working with a partner. The research used a concurrent mixed-methods design using identical samples to compare and synthesize the results. For this study, six fifth-grade students participated in nine sessions of mathematics instruction using virtual manipulatives. The study compared three virtual manipulative types: combined (multiple representations, open environment), pictorial (single visual representation, open environment), and tutorial (multiple representations, structured environment). Students’ levels of discourse in generalization, justification, and collaboration were measured as well as students’ use of physical and computer gestures while working with each virtual manipulative type. One-way ANOVAs indicated statistically significant differences in quality of student discourse when using the different virtual manipulative types. When working with combined virtual manipulatives, students’ discussions reflected consistently higher levels of discourse than when working with pictorial or tutorial virtual manipulatives. When working with tutorial and pictorial virtual manipulatives, students’ discussions reflected consistently lower levels of discourse. However, pictorial virtual manipulatives were associated with the largest amount of discussion among student pairs and the highest frequency of gesture use. The results of this study suggest that in order to encourage meaningful TMD, teachers should choose technology tools (e.g., virtual manipulatives) that combine multiple representations (i.e., combined virtual manipulative type) and provide the opportunity to engage in cognitively demanding tasks. The results of this study indicate that tutorial virtual manipulatives did not encourage meaningful mathematical discourse with these student pairs. This means that the tutorial virtual manipulative type may be better suited for the practice of mathematics concepts or for individual learning than for partner work. The patterns and trends identified in this study contribute to the existing literature on the complex issues that surround mathematical discourse and the use of technology in the classroom.
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Hambach, Jens [Verfasser], Joachim [Akademischer Betreuer] Metternich, and Ralph [Akademischer Betreuer] Bruder. "Methodik für einen digitalen Verbesserungsprozess im betrieblichen KVP – Entwicklung und problemorientierte Validierung / Jens Hambach ; Joachim Metternich, Ralph Bruder." Darmstadt : Universitäts- und Landesbibliothek Darmstadt, 2019. http://d-nb.info/1200099400/34.
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Henze, Lars. "Entwicklung einer Methode zum Aufdecken von potentiellen Fehlern in der Konstruktion." Doctoral thesis, Universitätsbibliothek Chemnitz, 2008. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-200801016.
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Vorbeugende QM-Techniken operationalisieren die Funktionen des Qualitätsmanagements
(QM) mit dem Ziel einer abgesicherten Produktentstehung. Sie leisten einen wesentlichen
Beitrag zur Erhöhung der Produktqualität. Jedoch zeigen Untersuchungen, dass deren
Einsatz häufig sehr große Probleme bereitet.
Die vorliegende Arbeit untersucht vordergründig die FMEA, QFD und DRBFM. Neben
der Beschreibung ihrer Anwendungsbereiche, werden die Vorteile und Schwächen
gegenübergestellt. Es gilt, die Schwächen mit Hilfe einer neu entwickelten Methode zu
umgehen bzw. zu eliminieren.
Die Entwicklung zentraler Schwerpunkte zur Erreichung von Null-Fehlerqualität liefert die
Basis für die Erstellung einer Checkliste in Form eines Fragenkataloges. Ziel soll es sein,
durch die Systematik des Fragenkataloges und Wahl des Antwortformates Fehlerursachen
zu vermeiden.
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Kühn, Torsten. "Kokzidien des Kaninchens (Oryctolagus cuniculus) - Verlauf natürlicher Infektionen bei Boden- und Käfighaltung in einer Versuchstiereinheit." Doctoral thesis, Universitätsbibliothek Leipzig, 2004. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-37722.
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Zimmermann, Sven. "Entwicklung einer Technologie zur Herstellung eines neuartigen Substrates mit strukturierten vergrabenen Kobaltdisilizidschichten für die gemeinsame Integration bipolarer und unipolarer Bauteile auf einem SOI-Wafer." Doctoral thesis, Universitätsbibliothek Chemnitz, 2007. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-200701689.
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Die Arbeit beschreibt die Anfertigung eines
speziellen SOI-Substrates, bei dem eine
strukturierte Kobaltdisilizidschicht zwischen
dem vergrabenen Oxid und der Silizium-
Bauelementeschicht angeordnet ist. Dieses soll für
die gemeinsame Integration bipolarerer und
unipolarerer Bauelemente auf einem SOI-Substrat
im Bereich der Höchstfrequenztechnik Anwendung
finden. Verschiedene Technologien zur Herstellung
von SOI-Substraten sowie deren Eigenschaften werden
vorgestellt und in Hinblick auf eine mögliche
Anwendung diskutiert. Schließlich wurden die
konventionellen Technologien, Bond and Etchback
SOI (BESOI) und wasserstoffinduzierte Delamination
(SmartCut®), als geeignet ausgewählt. Es wurden
erstmalig durchgängige Technologiekonzepte
erarbeitet, welche die Prozesse zur SOI-
Substratfertigung und die Teilschritte zur
Herstellung hochwertiger Kobaltdisilizidschichten
mittels des Kobalt-Salicide-Prozesses enthalten.
Schwerpunkte bei der Silizidherstellung waren die
Metallabscheidung mit sehr guter Homogenität
sowie die zur Silizierung notwen-digen
Hochtemperaturprozesse. Weiterhin wurde ein
nasschemischer Prozess entwickelt, welcher das
Ätzen der Ausgangsmetalle, selektiv zur
entstehenden Silizidschicht, ermöglicht. Ein
Schlüsselprozess in beiden Technologien ist das
Waferbonden, welches in Hinblick auf
Funktionalität und Fehlerfreiheit optimiert wurde.
Für den BESOI-Prozess ist das Wafergrinden die
kritische Technologie. Dabei war es vor allem
notwendig, eine optimale Restsiliziumdicke zu
finden. Bei der SmartCut®-Technologie stellte die
Wasserstoffionen-implantation durch abwechselnde
Gebiete mit und ohne Silizid mit der gleichen
Reichweite der implantierten Ionen eine große
Herausforderung dar. Die Grenzfläche zwischen
dem Kobaltdisilizid und dem Silizium der
Bauelementeschicht ist bei Verwendung des
konventionellen Kobalt-Salicide-Prozesses zu
rau für die Anwendung als vergrabenes Silizid
in einem SOI-Substrat. Durch Modifikation von
Prozessparametern und durch die Anordnung
verschiedener Schichten zwischen Silizium und
Kobalt während der Silizidherstellung wurde
versucht, eine Verbesserung der
Grenzflächenqualität zu erzielen. Mit der
Verwendung einer polykristallinen
Siliziumzwischenschicht gelang es schließlich,
die Rauhigkeitswerte signifikant zu senken.
Schließlich wurde die Eigenschaft des Kobalts
untersucht, in den Siliziumkristall einzudringen
und die Rekombinationslebensdauer der
Minoritätsladungsträger zu senken. Durch die
Verwendung eines reineren Sputtertargets und
die Modifikation der Schichtgeometrien während
der Silizidherstellung wurde versucht, eine
Verbesserung der Lebensdauerwerte zu erzielen.
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Kharfan, Daniela. "Proposta de método para avaliação do processo de extração de sucos cítricos." Universidade Federal de São Carlos, 2011. https://repositorio.ufscar.br/handle/ufscar/3685.
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Previous issue date: 2011-08-30For almost one century, citrus chain has been one of the most important agribusiness for Brazil. Brazil is the largest world orange producer and the largest orange juice exporter, responsible for almost 90% of the worldwide orange juice exportations. Doubtless one of the most important Brazilian sectors, citrus is responsible for a huge percentage of the agribusiness exportations (around USD 1,5bilion/year) and one of the economy motors of the central regions of the State of São Paulo. Over this period, many changes occurred and are still going on into the national and international scenarios. Also, in the XXI century changes have being happened more quick and intense: great fruit and orange juice price oscillations, influence of exchange variation, the 2008 economical crisis, influence of climate conditions and incidence of new diseases, besides demand variations regarding volume and type of product (advent of NFC Not From Concentrate or single strength juice). Citrus processing industry represents a fundamental key role in the whole chain, to achieve new frontiers, putting the Brazilian product into the 5 continents, leveraging exportations to almost 1,300 k/tons of juice exported annually. To guarantee competitiveness in the business, processors have searched continuous improvement on processes, equipment, management techniques as well as quality standards of their products, in order to meet the demands of the market that, year by year, have become more discerning and demanding. There is also the need of continuous improvement and adjustment of the Research & Development techniques for equipment applied to industry, to attend the new parameters. Performance tests of citrus juice equipment are totally important to: evaluate productive process efficiency, investment definition, meet customer s standards and represent a point that impacts the strategic corporate decisions. The purpose of this master s degree dissertation is to propose a method for evaluating the technical-economic stage of citrus juice extraction. The study aims the juice extraction process introduced in the citrus juice extraction chain. For this, it was performed a review of literature and a case study in the segment of citrus juice processing. The research approach used is qualitative and quantitative, using already existent data, from empirical studies conducted in the sector. This work aims to structure and propose a method for the process of citrus juice comparative tests, and the performance evaluation of the extraction system, considering the higher number of variables and ensuring all necessary and sufficient data for decisionmaking. As academic contribution, this work aims to bring an empirical example improvement of food industry equipment, using experimental techniques and data analysis in a specific juice extraction situation, whose results are used for tracking their productive processes, monitoring and improving performance and decision-making regarding changes and investments.
A cadeia citrícola, ao longo de quase um século de existência no Brasil, tem se mostrado uma das mais importantes no agronegócio, visto que o Brasil é o maior produtor mundial de laranjas e o maior exportador de suco cítrico com quase 90% das exportações mundiais. É, sem dúvida, um dos setores mais importantes da economina brasileira, responsável por uma parcela generosa das exportações do agronegócio (cerca de US$ 1,5 bilhões / ano) e um dos motores da economia da região centro do Estado de São Paulo. Ao longo deste período, muitas mudanças ocorreram e continuam acontencendo no cenário nacional e internacional, e no século XXI as mudanças têm se tornado mais rápidas e intensas: grandes oscilações nos preços da fruta e do suco de laranja, influência da variação cambial e da crise econômica de 2008, influência das condições climáticas e incidência de novas doenças, além de variações na demanda no que se refere ao volume e tipo de produto (advento do NFC Not From Concentrate ou suco integral). Nesta cadeia, a indústria de processamento dos cítricos tem papel fundamental no avanço das fronteiras, colocando o produto brasileiro nos cinco continentes, alavancando as exportações com quase um milhão e trezentas mil toneladas de suco exportado anualmente. Para garantir a competitividade no negócio, as indústrias têm buscado melhorias contínuas nos seus processos, equipamentos, técnicas de gestão e também nos padrões de qualidade dos seus produtos, a fim de atender às exigências do mercado consumidor que tem se tornado, a cada ano, mais criterioso e exigente. A fim de atender estes novos parâmetros, há, também, uma necessidade de melhoria contínua e adequação das técnicas de Pesquisa e Desenvolvimento para os equipamentos aplicados na indústria. A realização de testes de desempenho dos equipamentos de extração de sucos cítricos é de fundamental importância na avaliação da eficiência do processo produtivo, definição de investimentos, atendimento aos padrões de qualidade dos clientes, representando um ponto que causa impacto nas decisões estratégicas das empresas. Nesse sentido, esta dissertação de mestrado tem como objetivo a proposição de um método para a avaliação técnica-econômica da etapa de extração de sucos cítricos. O objeto de estudo, inserido na cadeia de produção de sucos cítricos, é o processo de extração de sucos. Para a realização deste trabalho, foi feita uma revisão bibliográfica e um estudo de caso no segmento de processamento de sucos cítricos. A abordagem de pesquisa utilizada é a qualitativa e quantitativa, com a utilização de dados já existentes da literatura e dados de estudos práticos realizados neste setor. Espera-se com este trabalho a estruturação e proposição de um método para o processo de realização de testes comparativos de extração de suco cítrico e a avaliação do desempenho deste sistema de extração, de forma que considere o maior número de variáveis do processo e garanta a obtenção de dados necessários e suficientes para tomadas de decisão. Como uma contribuição acadêmica, espera-se que o trabalho proposto traga um exemplo prático de melhoria no segmento de equipamentos para a indústria de alimentos por meio do uso de técnicas de experimentação e análise de dados em uma situação específica de extração de suco, cujos resultados são utilizados para acompanhamento de seus processos produtivos, monitoramento e aprimoramento de desempenho e tomada de decisão de modificações e investimentos.
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Koal, Kristina. "Strömungsbeeinflussung in Flüssigmetallen durch rotierende und wandernde Magnetfelder." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2011. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-70429.
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Ziel der vorliegenden Arbeit ist es, Rühr- und Mischungsvorgänge in Flüssigmetallströmungen zu untersuchen, die mittels rotierender und wandernder Magnetfelder bzw. deren Kombination induziert werden. Im Mittelpunkt steht dabei die Charakterisierung der dreidimensionalen Strömungsstrukturen innerhalb zylindrischer Geometrien bei der Verwendung überkritischer Magnetfelder.
Neben der Untersuchung der Strömungseigenschaften stellen die physikalische Modellierung der angreifenden Kräfte, die geeignete Wahl und Validierung eines effizienten numerischen Lösungsverfahrens und dessen Erweiterung für die Durchführung von Large Eddy Simulationen wesentliche Eckpfeiler dieser Arbeit dar.
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Strohm, Christian. "Circuit Simulation Including Full-Wave Maxwell's Equations." Doctoral thesis, Humboldt-Universität zu Berlin, 2021. http://dx.doi.org/10.18452/22544.
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Diese Arbeit widmet sich der Simulation von elektrischen/elektronischen Schaltungen welche um elektromagnetische Bauelemente erweitert werden. Im Fokus stehen unterschiedliche Kopplungen der Schaltungsgleichungen, modelliert mit der modifizierten Knotenanalyse, und den elektromagnetischen Bauelementen mit deren verfeinerten Modell basierend auf den vollen Maxwell-Gleichungen in der Lorenz-geeichten A-V Formulierung welche durch Finite-Integrations-Technik räumlich diskretisiert werden. Eine numerische Analyse erweitert die topologischen Kriterien für den Index der resultierenden differential-algebraischen Gleichungen, wie sie bereits in anderen Arbeiten mit ähnlichen Feld/Schaltkreis-Kopplungen hergeleitet wurden. Für die Simulation werden sowohl ein monolithischer Ansatz als auch Waveform-Relaxationsmethoden untersucht. Im Mittelpunkt stehen dabei Zeitintegration, Skalierungsmethoden, strukturelle Eigenschaften und ein hybride Ansatz zur Lösung der zugrundeliegenden linearen Gleichungssysteme welcher den Einsatz spezialisierter Löser für die jeweiligen Teilsysteme erlaubt. Da die vollen Maxwell-Gleichungen zusätzliche Ableitungen in der Kopplungsstruktur verursachen, sind bisher existierende Konvergenzaussagen für die Waveform-Relaxation von gekoppelten differential-algebraischen Gleichungen nicht anwendbar und motivieren eine neue Konvergenzanalyse. Auf dieser Analyse aufbauend werden hinreichende topologische Kriterien entwickelt, welche eine Konvergenz von Gauß-Seidel- und Jacobi-artigen Waveform-Relaxationen für die gekoppelten Systeme garantieren. Schließlich werden numerische Benchmarks zur Verfügung gestellt, um die eingeführten Methoden und Theoreme dieser Abhandlung zu unterstützen.This work is devoted to the simulation of electrical/electronic circuits incorporating electromagnetic devices. The focus is on different couplings of the circuit equations, modeled with the modified nodal analysis, and the electromagnetic devices with their refined model based on full-wave Maxwell's equations in Lorenz gauged A-V formulation which are spatially discretized by the finite integration technique. A numerical analysis extends the topological criteria for the index of the resulting differential-algebraic equations, as already derived in other works with similar field/circuit couplings. For the simulation, both a monolithic approach and waveform relaxation methods are investigated. The focus is on time integration, scaling methods, structural properties and a hybrid approach to solve the underlying linear systems of equations with the use of specialized solvers for the respective subsystems. Since the full-Maxwell approach causes additional derivatives in the coupling structure, previously existing convergence statements for the waveform relaxation of coupled differential-algebraic equations are not applicable and motivate a new convergence analysis. Based on this analysis, sufficient topological criteria are developed which guarantee convergence of Gauss-Seidel and Jacobi type waveform relaxation schemes for introduced coupled systems. Finally, numerical benchmarks are provided to support the introduced methods and theorems of this treatise.
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Legendre, Olivier. "Conception et réalisation d'un capteur MEMS multifonctions." Phd thesis, Université Paris Sud - Paris XI, 2013. http://tel.archives-ouvertes.fr/tel-00931959.
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La problématique entourant la mise en oeuvre, la conception et le conditionnement de micro-capteurs au sein d'une application embarquée représente un enjeu industriel majeur, consiste en un vaste ensemble de défis techniques et touche à de nombreux champs de recherche scientifiques comme d'applications commerciales. Ce mémoire de thèse compile de manière pédagogique et détaillée la conception, la réalisation et l'évaluation expérimentale d'un capteur MEMS constitué d'un simple micro-filament destiné à la mesure, mutuellement, de la température, de la pression et de l'humidité d'une ambiance gazeuse, en utilisant un même et mutuel étage de conditionnement du signal - ce qui en tant que tel constitue une méthode d'intégration particulièrement originale qui est arbitrairement référencée comme "intégration totale". Aussi, le principe physique sous jacent à ce triplet de mesurage est la diffusion par conduction de la chaleur, produite par effet Joule dans l'élément sensible, à travers l'échantillon gazeux l'environnant. Ainsi, le principe de fonctionnement consiste en ce que, la réponse transitoire d'un tel ensemble permet d'une part de mettre en évidence, simultanément et de manière diagonalisable, à une température donnée, l'influence de la pression et de l'humidité sur la conductivité thermique et la capacité calorifique du couple sonde/échantillon. D'autre part, l'élément sensible est spécifiquement prévu pour que dans les conditions initiales du régime transitoire de l'échauffement, sa résistance électrique ne soit sensible qu'à la seule température ambiante, indépendamment des deux mesurandes.
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Gregor, Jiří. "Pokročilé modely logistiky v oblasti odpadového hospodářství." Doctoral thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-401601.
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The purpose of the dissertation thesis is to prepare transport techno-economic models which will be able to estimate the transportation cost for selected scenarios. The main goal is to describe the complex transport chains in waste management, using different types of transportation (road, rail) and transport different types of waste. The key element of preparing techno-economic models is the identification of input parameters which are important for estimating the cost of transport. At the same time, it is necessary to correctly identify the processing facilities that will be part of complex transport chains. The total outputs will be presented in the form of a feasibility study.
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Gorfu, Paulos. "Untersuchung von Dünnschichtsystemen mittels Elektronenstrahl-Mikroanalyse." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2009. http://nbn-resolving.de/urn:nbn:de:bsz:14-ds-1237375992053-95064.
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Die Arbeit beschäftigt sich mit der Erweiterung der für dicke Proben schon mit Erfolg eingesetzten Werkstoffanalytischen Methode Elektronenstrahl-Mikroanalyse (ESMA) mittels Peak/Untergrund-Verhältnissen auf die Analyse von dünnen Schichten (unter 1 μm) zur qualitative und quantitativen Elementanalyse sowie zur Ermittlung von Schichtdicken. Weiterhin wird auf der Basis von einer ESMA-Methode für zwei dünne Schichten auf einem Substrat wird ein Modell zur Ermittlung des Phasenwachstumskoeffizienten für eine intermetallische Phase die sich bei der Diffusion zwischen einer dünnen Schicht und einem Substrat bildet, mittels ESMA-Messungen bei gleichzeitiger Erwärmung der Probe dargestelltThe paper deals with the application of the materials analysis method EPMA by peak-to-background ratios, which is currently being used for the analysis of thick samples successfully, to thin layers (less than 1 μm) for the quantitative element analysis as well as for thickness prediction. In addition a model has been established on the Basis of an EPMA method for two films on a substrate for deriving the phase growth coefficient of an inter-metallic phase which grows during the diffusion between a thin layer and a substrate from EPMA measurements while simultaneously heating the sample
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Gorfu, Paulos. "Untersuchung von Dünnschichtsystemen mittels Elektronenstrahl-Mikroanalyse." Doctoral thesis, Technische Universität Dresden, 1991. https://tud.qucosa.de/id/qucosa%3A23789.
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Die Arbeit beschäftigt sich mit der Erweiterung der für dicke Proben schon mit Erfolg eingesetzten Werkstoffanalytischen Methode Elektronenstrahl-Mikroanalyse (ESMA) mittels Peak/Untergrund-Verhältnissen auf die Analyse von dünnen Schichten (unter 1 μm) zur qualitative und quantitativen Elementanalyse sowie zur Ermittlung von Schichtdicken. Weiterhin wird auf der Basis von einer ESMA-Methode für zwei dünne Schichten auf einem Substrat wird ein Modell zur Ermittlung des Phasenwachstumskoeffizienten für eine intermetallische Phase die sich bei der Diffusion zwischen einer dünnen Schicht und einem Substrat bildet, mittels ESMA-Messungen bei gleichzeitiger Erwärmung der Probe dargestellt.The paper deals with the application of the materials analysis method EPMA by peak-to-background ratios, which is currently being used for the analysis of thick samples successfully, to thin layers (less than 1 μm) for the quantitative element analysis as well as for thickness prediction. In addition a model has been established on the Basis of an EPMA method for two films on a substrate for deriving the phase growth coefficient of an inter-metallic phase which grows during the diffusion between a thin layer and a substrate from EPMA measurements while simultaneously heating the sample.
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Akoussan, Komlan. "Modélisation et conception de structures composites viscoélastiques à haut pouvoir amortissant." Thesis, Université de Lorraine, 2015. http://www.theses.fr/2015LORR0188/document.
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L’objectif de ce travail est de développer des outils numériques utilisables dans la détermination de manière exacte des propriétés modales des structures sandwichs viscoélastiques composites au vue de la conception des structures sandwichs viscoélastiques légères mais à haut pouvoir amortissant. Pour cela nous avons tout d’abord développé un outil générique implémenté en Matlab pour la détermination des propriétés modales en vibration libre des plaques sandwichs viscoélastiques dont les faces sont en stratifié de plusieurs couches orientées dans diverses directions. L’intérêt de cet outil, basé sur une formulation éléments finis, réside dans sa capacité à prendre en compte l’anisotropie des couches composites, la non linéarité matérielle de la couche viscoélastique traduit par diverses lois viscoélastiques dépendant de la fréquence ainsi que diverses conditions aux limites. La résolution du problème aux valeurs propres non linéaires complexes se fait par le couplage entre la technique d’homotopie, la méthode asymptotique numérique et la différentiation automatique. Ensuite pour permettre une étude continue des effets d’un paramètre de modélisation sur les propriétés modales des sandwichs viscoélastiques, nous avons proposé une méthode générique de résolution de problème résiduel non linéaire aux valeurs propres complexes possédant en plus de la dépendance en fréquence introduite par la couche viscoélastique du coeur, la dépendance du paramètre de modélisation qui décrit un intervalle d’étude bien spécifique. Cette résolution est basée sur la méthode asymptotique numérique, la différentiation automatique, la technique d’homotopie et la continuation et prend en compte diverses lois viscoélastiques. Nous proposons après cela, deux formulations distinctes pour étudier les effets, sur les propriétés amortissantes, de deux paramètres de modélisation qui sont importants dans la conception de sandwichs viscoélastiques à haut pouvoir amortissement. Le premier est l’orientation des fibres des composites dans la référence du sandwich et le second est l’épaisseur des couches qui lorsqu’elles sont bien définies permettent d’obtenir non seulement des structures sandwichs à haut pouvoir amortissant mais très légères. Les équations fortement non linéaires aux valeurs propres complexes obtenues dans ces formulations sont résolues par la nouvelle méthode de résolution d’équation résiduelle développée. Des comparaisons avec des résultats discrets sont faites ainsi que les temps de calcul pour montrer non seulement l’utilité de ces deux formulations mais également celle de la méthode de résolution d’équations résiduelles non linéaires aux valeurs propres complexes à double dépendanceModeling and design of composite viscoelastic structures with high damping powerThe aim of this thesis is to develop numerical tools to determine accurately damping properties of composite sandwich structures for the design of lightweight viscoelastic sandwichs structures with high damping power. In a first step, we developed a generic tool implemented in Matlab for determining damping properties in free vibration of viscoelastic sandwich plates with laminate faces composed of multilayers. The advantage of this tool, which is based on a finite element formulation, is its ability to take into account the anisotropy of composite layers, the material non-linearity of the viscoelastic core induiced by the frequency-dependent viscoelastic laws and various boundary conditions . The nonlinear complex eigenvalues problem is solved by coupling homotopy technic, asymptotic numerical method and automatic differentiation. Then for the continuous study of a modeling parameter on damping properties of viscoelastic sandwichs, we proposed a generic method to solve the nonlinear residual complex eigenvalues problem which has in addition to the frequency dependence introduced by the viscoelastic core, a modeling parameter dependence that describes a very specific study interval. This resolution is based on asymptotic numerical method, automatic differentiation, homotopy technique and continuation technic and takes into account various viscoelastic laws. We propose after that, two separate formulations to study effects on the damping properties according to two modeling parameters which are important in the design of high viscoelastic sandwichs with high damping power. The first is laminate fibers orientation in the sandwich reference and the second is layers thickness which when they are well defined allow to obtain not only sandwich structures with high damping power but also very light. The highly nonlinear complex eigenvalues problems obtained in these formulations are solved by the new method of resolution of eigenvalue residual problem with two nonlinearity developed before. Comparisons with discrete results and computation time are made to show the usefulness of these two formulations and of the new method of solving nonlinear complex eigenvalues residual problem of two dependances
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Podlahová, Monika. "Využití písně jako didaktického prostředku." Master's thesis, 2012. http://www.nusl.cz/ntk/nusl-313131.
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My work is dealing with the topic concerning the use of the song in the class. In the theoretical section, the author considers the teaching methods, types of exercises, connection of the song in the class with suggestopedia and the use of the song in the class where French language is taught. Then in the practical section she suggests the possibilities of the work with different songs in the class.
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ADAMOVÁ, Kateřina. "Výukové metody v hodinách českého jazyka na 2. stupni základních škol." Master's thesis, 2018. http://www.nusl.cz/ntk/nusl-385165.
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The thesis deals with educational area "Language and language communication" with special focus on educational field "Czech language and literature from 6th to 9th grade of primary schools and is defining the problematics of teaching methods. These questions are characterized both in theory and in research. The theoretical part characterizes the subject Czech language from 6th to 9th grade of primary schools as a teaching subject and it deals with teaching methods in terms of their classification. The research part is based on a survey and it focuses on practical use of teacing methods of Czech language lessons from 6th to 9th grade of primary schools.
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HLASOVÁ, Zuzana. "Učební portfolio z Biologie člověka pro vzdělávací obor Přírodopis." Master's thesis, 2011. http://www.nusl.cz/ntk/nusl-48047.
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The aim of the thesis is to create a teaching portfolio with special attention to the educational content of Human Biology. Instructional manuals are created for teaching natural science at primary school and are focused on selected systems in Biology of the human being, which are: muscle system, breathing system, circulation system, digest system, sensuous system, and a chapter about nourishment. Regarding the present?day School educational programmes the teachers themselves choose the year in which they would teach the educational topics of Biology of the human being. The portfolio is drafted as the methodical aid for teachers and instructional activities for pupils that lead to improvement of teaching methods and better understanding particular terms and relations between the structure and function of human body. The educational portfolio consists of working sheets, practical tasks and tests that help to vary teaching methods and add a lot of matters of interest, physiology experiments and testing to the classical approach to teaching Human Biology.
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Sieber, Galina [Verfasser]. "Numerical simulation of fluid structure interaction using loose coupling methods / vorgelegt von Galina Sieber." 2002. http://d-nb.info/967373719/34.
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Gauger, Christoph [Verfasser]. "Erweiterungen der Methode der finiten Massen / vorgelegt von Christoph Gauger." 2000. http://d-nb.info/963240056/34.
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Holá, Veronika. "Metodika vybraných technik juda pro děti mladšího školního věku." Master's thesis, 2018. http://www.nusl.cz/ntk/nusl-379087.
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Title: Methodic of selected judo techniques for younger school age children. Objectives: The aim of the thesis is to build visual material, which has the form of mental maps, selected technic in judo for beginner's athletes during the younger school age. Mental maps will be formed in conjunction with each other in a successful design, failed design, or in individual combinations. Techniques will be selected on the basis of the Testing Regulations of the Czech Judo Association. Methods: The collection of knowledge was carried out by a literature search, which deals with the topic of Juda and the chosen age category. Another reason for choosing the suitability of these techniques is the direct link to the judo test rule, which is given by Czech judo association. Keywords: judo, a younger school age, methods technique, mental maps, combination
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Vachon, William. "Dub City: Sample, Remix, and the Techno-Urban Graft." 2012. http://hdl.handle.net/10222/15222.
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This thesis looks to techno music, and subsequently to the DJ, as models for a way of understanding urban spatial ecology. In its compositional use of rhythm to create a sense of musical space punctuated by time, the DJ’s act of mixing audio in performance is akin to the design process: architects similarly do well to observe and acknowledge the rhythm of city life, history, climate, geology, and to mould their dynamic into an appropriate spatial interface. By aligning aspects of documentation and process with DJ methods, the thesis translates the city’s various rhythms to produce responsive, intuitive architecture. A proposal for a built intervention on a former rail yard in central Halifax, Canada, the architectural response seeks to mix aspects of the city into the site, creating a multivalent graft between military facilities and civilian neighborhoods.