Dissertations / Theses on the topic 'Flashback'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the top 50 dissertations / theses for your research on the topic 'Flashback.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.
Chávez, Minda Andrea, and Urrutia María Inés Jacques. "Discotheque Flashback." Tesis, Universidad de Chile, 2015. http://repositorio.uchile.cl/handle/2250/137255.
Full textAndrea Chávez Minda [Parte I], María Inés Jacques Urrutia [Parte II]
María Inés Jacques Urrutia [Parte II] no autoriza el acceso a texto completo de su documento
El presente Plan de Marketing nace con la idea de satisfacer la necesidad del segmento adulto entre 55 y 65 años, de bailar y divertirse en un ambiente nocturno con características particulares que satisfacen sus gustos y preferencias. Esta necesidad fue descubierta mediante un análisis de la industria de las Discotheques ubicadas en la ciudad de Santiago y su actual oferta de servicios de entretenimiento para diversos públicos. Este análisis fue justamente el que determinó la existencia de un segmento que quiere divertirse en un lugar que actualmente no se encuentra disponible en la capital chilena. Un minucioso estudio de los posibles segmentos, realizando investigación cualitativa y cuantitativa permitió identificar los posibles segmentos para la propuesta de servicio planteada y a su vez definir cuál será el target principal. Ahondar en estudios exploratorios de comportamientos del consumidor arrojaron varios insgihts que moldearon la actual propuesta de valor del servicio. En esta primera parte del trabajo, se detalla paso a paso el análisis situalcional previo a la definición de las estrategias de marketing y ventas para lograr que Flashback Disotheque – Restaurante, se posicione como un competidor fuerte en la industria y genere valor para los clientes locales y extranjeros.
Milo, Elizabeth Moulton. "Exploring the flashback experience /." Thesis, Connect to this title online; UW restricted, 1997. http://hdl.handle.net/1773/7833.
Full textDam, Bidhan Kumar. "Flashback propensity of gas mixtures." To access this resource online via ProQuest Dissertations and Theses @ UTEP, 2009. http://0-proquest.umi.com.lib.utep.edu/login?COPT=REJTPTU0YmImSU5UPTAmVkVSPTI=&clientId=2515.
Full textShelil, Nasser. "Flashback studies with premixed swirl combustion." Thesis, Cardiff University, 2009. http://orca.cf.ac.uk/55494/.
Full textMaurer, Lauren N. (Lauren Nichole). "Flashback : the return of psychedelic medicine." Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/76174.
Full textCataloged from PDF version of thesis.
Includes bibliographical references (p. 23-25).
In the 1960's, psychedelic drugs were a part of not only popular culture, but also cuttingedge psychology research. Scientists were studying these drugs in the hope of understanding and treating various psychological and societal ills; but as psychedelics got caught up in the counter-culture, they fell out of favor with the public, and practically vanished from the research world as quickly as they'd appeared. Now, decades after they all but disappeared, psychedelics are making a comeback. Focusing primarily on research with psychedelics to treat post-traumatic stress disorder as well as anxiety and depression associated with terminal illness, this thesis examines the researchers who've brought psychedelic medicine back from the brink and the work they're doing to explore the potential within these complex and controversial drugs.
by Lauren N. Maurer.
S.M.in Science Writing
Brandhill, Torbjörn S. "Svenskhet på Flashback forum? : Idealtypsanalys om Svenskhet utifrån fyra implicita kulturdefinitioner om svenskhet/svensk kultur på Flashback forum." Thesis, Linnéuniversitetet, Institutionen för statsvetenskap (ST), 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-44184.
Full textNilsson, Sofia. "Flashback som informationskälla i vardagen : En kvantitativ enkätstudie om svenska studenters användning av Flashback Forum i vardagliga informationssyften." Thesis, Linnéuniversitetet, Institutionen för kulturvetenskaper (KV), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-99188.
Full textHatem, Fares. "Flashback analysis and avoidance in swirl burners." Thesis, Cardiff University, 2017. http://orca.cf.ac.uk/103700/.
Full textJernberg, Anna, and Annica Hallquist. "När rykten blir nyheter : Lokalpressen och Flashback Forum." Thesis, Högskolan i Gävle, Avdelningen för humaniora, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-19430.
Full textMontgomery, Kenneth Edward. "The imagined Canadian, representations of whiteness in Flashback Canada." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ38757.pdf.
Full textAbdulsada, Mohammed. "Flashback and blowoff characteristics of gas turbine swirl combustor." Thesis, Cardiff University, 2011. http://orca.cf.ac.uk/24193/.
Full textBoström, Anders. "”FAREWELL TO WELFARE” : Constructing consequences of immigration on Flashback." Thesis, Umeå universitet, Sociologiska institutionen, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-188469.
Full textBaumgartner, Georg [Verfasser]. "Flame Flashback in Premixed Hydrogen-Air Combustion Systems / Georg Baumgartner." München : Verlag Dr. Hut, 2015. http://d-nb.info/107080018X/34.
Full textMoen, Linn. "Kropp, tjockhet och genus : En kritisk diskursanalys av nätdiskussionsforumet Flashback." Thesis, Karlstads universitet, Fakulteten för humaniora och samhällsvetenskap (from 2013), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-43534.
Full textLindgren, Anna, and Lovisa Kullgren. "Det oproblematiska sexköpet : En kritisk diskursanalys av diskussionstrådar på Flashback." Thesis, Uppsala universitet, Centrum för socialt arbete - CESAR, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-411835.
Full textEricsson, Elin, and Emil Svensson. "Kriminaljournalister och Flashback : En intervjustudie om pressetik i ett nytt medium." Thesis, Linnéuniversitetet, Institutionen för medier och journalistik (MJ), 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-31491.
Full textBourne, Corin. "Trauma and the peri-traumatic cognitive mechanisms involved in flashback formation." Thesis, University of Oxford, 2010. http://ora.ox.ac.uk/objects/uuid:1d42715a-7eef-4b16-9f5b-14aca89f11ed.
Full textWidarsson, Emma. "Torskar, butterflies och faranger : maskulinitetskonstruktioner i Flashback-tråden Kvinnorna i Thailand." Thesis, Linköpings universitet, Institutionen för samhälls- och välfärdsstudier, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-149008.
Full textLord, Karlsson Carin, and Angleflod Minna Önner. "Samhällets kärleksministerium och batikhäxan : Föreställningar om socialtjänsten och socialarbetare på Flashback Forum." Thesis, Linköpings universitet, Socialt arbete, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-72089.
Full textTrkulja, Simo. "Bidragsfusk i det senmoderna samhället : en analys av diskussioner på Flashback Forum." Thesis, Högskolan Kristianstad, Sektionen för hälsa och samhälle, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:hkr:diva-9503.
Full textEichler, Christian Thomas [Verfasser]. "Flame Flashback in Wall Boundary Layers of Premixed Combustion Systems / Christian Eichler." München : Verlag Dr. Hut, 2011. http://d-nb.info/1018982884/34.
Full textLidholm, Per. "Aftonbladet, kommunister och andra fiender? : En studie i gruppidentitet på forumet Flashback." Thesis, Stockholms universitet, Institutionen för mediestudier, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-77583.
Full textDahl, Daniel. ""Vilda västern går mot sitt slut" : Fildelning, streaming och rättfärdigande på Flashback." Thesis, Stockholms universitet, Sociologiska institutionen, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-117752.
Full textAl-Fahham, Mohamed. "A modelling and experimental study to reduce boundary layer flashback with microstructure." Thesis, Cardiff University, 2017. http://orca.cf.ac.uk/103705/.
Full textNilsson, Lina. "”Hen är en genomsnäll person och det är helt ofattbart att hen skulle vara skyldig till mord” : ’Sanningssägares’ och ’försvarares’ diskursiva produktion av brottsoffer och förövare på Flashback." Thesis, Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-79274.
Full textThis report fulfils the purpose of expanding the understanding of how anonymous actors can discuss victims of crime and perpetrators at an anonymous forum. The study is based on three discussion threads at the Flashback Forum where crimes are discussed and accordingly victims of crime and perpetrators. To analyze the data, Michel Foucualt's (2003) theory of panopticism and Erving Goffman's (2011) theory of stigmatization and social deviants has been used. Foucault’s theory has been used to describe how the surveillance causes individuals to act on the basis of prevailing norms through surveillance and punishment. Goffman's theory has contributed to an understanding of how individuals, who do not fit into norms, get labelled as deviants and therefore get stigmatized. These two theories have been combined to explain how anonymous actors describe victims and perpetrators, and how information can be shared/speculated. The study has an abductive approach as the empiricism and theory interact to create a deeper understanding of the discourse regarding victims of crime and perpetrators. The study assumes a discourse analytic perspective and it is primarily inspired by Bacchi's discourse analysis (2011, referenced in Bergström & Boréus, 2018) and Foucault's (1993) thoughts about the order of discourse. The results show that, among other things, actors can monitor each other like panopticism (Foucault, 2003) and this can be done based on norms and socially deviant behavior from the norms (Goffman, 2011). Furthermore, the results show that there are both differences and similarities when it comes to how victims of crime and perpetrators are portrayed at Flashback. For example, in some cases, the actors discuss whether both the perpetrators and the victims fit into the picture as social deviants or not, based on their involvement in the crime. Thus, the persons involved are stigmatized both through their involvement in the crime and the information that is spread about them over the internet. However, the discourse of the victims of crime and the perpetrators was different when the crime was an accident. In that case the involved, to some extent, were compared with each other. The results also show that actors often position themselves as truth-tellers, whether it is speculation or sharing information. By referring to a personal relationship or knowledge of the people involved, there are little room for misinterpretation. This can create discussions in the discourse that result in stigmatization even among the actors.
Berglund, Marianne, and Carolina Demir. "Vem är du på Flashback Forum? : En studie av identitetsskapande på ett forum." Thesis, Umeå universitet, Institutionen för informatik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-60565.
Full textGezelius, Rebecka. "Vaccinmotståndet under Covid-19-pandemin : En netnografisk studie av vaccinmotstånd på Flashback forum." Thesis, Luleå tekniska universitet, Institutionen för ekonomi, teknik, konst och samhälle, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-85687.
Full textThe Covid-19-pandemic, or Coronapandemic as it is popularly called, has affected everyone's livesfor over a year with various restrictions and 3,5 million people have died with the Covid-19-virus.Despite this, many do not want to be vaccinated against Covid-19 now that vaccines have beendeveloped. A survey conducted in January 2021 shows that 63% of Sweden's population want tobe vaccinated against Covid-19. This can be considered unfortunate because the World HealthOrganization listed vaccine resistance as one of ten global health threats in 2019. It is of interestto investigate vaccine resistance during the Covid-19-pandemic as it is a relatively unexploredarea. The purpose of this study is to investigate how vaccination opponents express themselvesabout the Covid-19-vaccines on the internet forum Flashback.This has been investigated through a netnographic qualitative study where the content of 9different threads on Flashback has been studied. The results of the study have been analyzed usingUlrich Beck's concepts of "risk", Anthony Gidden's definition of the terms "trust" and"expertsystem" as well as previous research on vaccine resistance on social media. The results ofthe study indicate that people who were against the Covid-19-vaccine tended to see the vaccine asa major risk. They were afraid of various side effects and they tended to value the vaccine as agreater risk than getting Covid-19. A common trend among vaccine opponents on Flashback wasthat they tended to distrust the science behind vaccines and instead prefered alternative methodsinstead of vaccines. They tended to think that Covid-19 is not a dangerous disease or that the wholedisease is invented by pharmaceutical companies, the media, the authorities and the governmenttogether. Vaccine opponents on Flashback tended to believe that the vaccine against Covid-19 willeither kill or sterilize people to depopulate the planet, or that the drug companies want to makemoney off vaccines. This indicates that vaccine opponents had a lot of mistrust of the Covid-19-vaccine as an expertsystem, but also pharmaceutical companies, the government, authorities and media.
Fridriksson, Fridrik Steinn. "Recycled memories : can flashbacks be triggered through experience design?" Thesis, Konstfack, Experience Design, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:konstfack:diva-4207.
Full textEwald, Hugo. ""Vart är patriarkatet när männen behöver det som mest?" : En analys av de dominerande diskurserna rörande jämställdhet och feminism på Flashback Forum." Thesis, Stockholms universitet, Institutionen för etnologi, religionshistoria och genusvetenskap, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-91009.
Full textLögdal, Niklas, and Philip Calissendorff. "Vem blir du på nätet? : En studie av beteendeförändringar vid anonymitet på internet." Thesis, Umeå universitet, Institutionen för informatik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-120947.
Full textBjurhult, Christofer. "Konstruktion av ensamkommande barn : En diskurspsykologisk studie kring hur föreställningar om ensamkommande barn görs trovärdiga på ett diskussionsforum online." Thesis, Högskolan Väst, Avd för utbildningsvetenskap och språk, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:hv:diva-8244.
Full textBackground: Constructions of unaccompanied children have been researched to some extent. Concepts of the children have been studied in media and policy documents amongst others. How the children are constructed within an "everyday context", in form of an open online discussion forum (Flashback Forum), and how the constructions become credible, are regarded as under-researched. Aim: The aim of the present study was to identify different discourses concerning unaccompanied children on the Flashback Forum, with regard to their rhetorical organization. Discourse is meant as a way to talk about and understand the world that constructs an object or phenomenon in a particular way. Method: To answer the aim, a discursive psychological approach was used, which focuses on how credibility and truth are created in communication. Based on a theoretical model, including the four rhetorical techniques category entitlement, empirical repertoire, consensus and extreme case formulations, it was examined how the writers at the forum created truth and responded to others' beliefs about the children. Result: The results showed that unaccompanied children are surrounded by the discourses: the adults, the children, the rapists, the special treated, the sexually vulnerable and the discourse of the biologically male sex. Discourses were used in parallel in the speeches and to back up arguments at the forum. The writers used the studied rhetorical techniques to build credibility in the statements. With specific expression, facts about unaccompanied children were created.
Ericson, Lisa. "Interaktion mellan män på Internetforumen Sekreterarakademin & Flashback : där sambandet är köp av sexuella." Thesis, Södertörn University College, School of Gender, Culture and History, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:sh:diva-1708.
Full textIn this study I will analyze how men who buy sex interact with one another on two different Internet communities: “Sekreterarakademin” and “Flashback”. This analysis is carried out in an attempt to challenge the conventional image of the man who pays for sex.
The aim is to examine the role of Internet forums for men who buy sexual services related to cross-border, both in terms of standard borders, gender boundaries, boundaries of sexuality and masculinity. I will also attempt to investigate what opportunities that are available to overrun different borders and how these opportunities affect the conditions of the various players. I will evaluate theories such as homosocialtet, hegemonic masculinity and normalization used by KAST (Köpare Av Sexuella Tjänster, the Swedish public support for clients of sexual services) and which are partially consolidated in studies published by KAST concerning issues related to internet based prostitution.
Heeger, Christof [Verfasser]. "Flashback investigations in a premixed swirl burner by high-speed laser imaging / Christof Heeger." Darmstadt : Universitäts- und Landesbibliothek Darmstadt, 2012. http://d-nb.info/1106114701/34.
Full textLuchoomun, Lawrence. "Mental images in cinema : flashback, imagined voices, fantasy, dream, hallucination and madness in film." Thesis, University of Roehampton, 2012. https://pure.roehampton.ac.uk/portal/en/studentthesis/mental-images-in-cinema(cb5f0b4d-dfff-4c02-af2d-973f0a5e51d3).html.
Full textJunker, Malin, and Mimmie Sönnergren. ""Snälla någon förklara hur man lever!!" : En diskursanalys av självmords- kommunikation på diskussionsforumet Flashback." Thesis, Stockholms universitet, Institutionen för socialt arbete - Socialhögskolan, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-136436.
Full textKropp, Lindh Frida, and David Nilsson. ""DÖD ÅT SAS" : En receptionsstudie på Flashback av SAS reklamfilm What is truly Scandinavian?" Thesis, Uppsala universitet, Institutionen för informatik och media, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-446346.
Full textRönnewald, Bodil, and Cabrera Sanna Evbäck. "Vad talas det om och hur under en pandemi : En diskursanalys av Flashback Forum." Thesis, Högskolan i Skövde, Institutionen för hälsovetenskaper, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-19922.
Full textIntroduction: Since March 2020, a global pandemic is underway after SARS-CoV-2 took the world by storm and the COVID-19 disease developed. The disease mainly causes symptoms of the respiratory tract, which vary in degree from mild to sometimes requiring intensive care treatment. Intensive work during the year has led to several vaccines now available. In addition, the pandemic has generated an infodemic, which means that information dissemination has escalated and digitalization has been highly contributing. In order to overcome false and alarming information dissemination, target group analyses need to be carried out in order to target and improve communication work. Aim: The purpose of the study was to investigate how active participants on the Flashback Forum talked about and understood the COVID-19 pandemic. Method: Forum posts from Flashback Forum were collected and analyzed using discourse analysis and Foucault's theory. Results: The analysis generated in four different discourses: the speculation discourse, the emotion discourse, the socially critical discourse and the discrimination discourse. The analysis also produced what was taken for granted in the discourses and what was indisclosed by them. Conclusion: The findings in this work show the importance of being present on digital platforms, the benefits of how the knowledge about these platforms and the discourses that occur can be used to reach new and more target groups in the communication work.
Robyn, Malin. "Självmordssamtal på det svenska internetbaserade diskussionsforumet Flashback : en kvalitativ innehållsanalys om suicidkommunikation på Internet." Thesis, Ersta Sköndal högskola, Institutionen för socialt arbete, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:esh:diva-605.
Full textMazetti, Anna, and Beatrice Lyckholm. "Internetdroger-En kvalitativ studie om fenomenet internetdroger : En studie om Internetdrogernas påverkan i samhället." Thesis, Örebro universitet, Institutionen för juridik, psykologi och socialt arbete, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-27168.
Full textHelén, Lina. "Våldtog och våldtogs under livesändning : En diskursanalytisk studie om diskursen kring sexualbrott på diskussionsforumet Flashback." Thesis, Uppsala universitet, Sociologiska institutionen, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-333178.
Full textAronsson, Johanna. "Code Switching on Flashback : A Study of Code Switching on an Internet Based Discussion Forum." Thesis, Södertörns högskola, Institutionen för kultur och lärande, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:sh:diva-26800.
Full textBerger, Linnea, and Maria Sundberg. "Online-våld; en grogrund till kvinnors våldsutsatthet? : En netnografisk studie av misogyni på internetforumet Flashback." Thesis, Linnéuniversitetet, Institutionen för socialt arbete (SA), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-105219.
Full textGöthe, Jessica, and Nathalie Holmér. "”Snälla, snälla, snälla, ta inte ditt enda liv” : En kritisk diskursanalys om kommunikationen om självmord på Flashback." Thesis, Högskolan i Gävle, Avdelningen för humaniora, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-29941.
Full textSyftet med denna uppsats var att undersöka hur kommunikationen om ämnet självmord på det svenska internetforumet Flashback Forum. Genom att göra en fallstudie, samt en kritisk diskursanalys ville vi får svar på hur samtalet mellan personer med självmordstankar och de bemötande såg ut, och om det gick att se några tydliga diskurser i samtalen. Tre olika trådar skapade av personer med självmordstankar valdes ut för analys, vilket gav 474 svar. Analysen resulterade i att det gick att tyda tre synliga diskurser i inläggen skrivna av medlemmarna på Flashback: preventiv, kritisk- och prosuicid diskurs.
Chen, Jen-Po. "Hur påverkar internetforumet FlashbackForum relationen mellan det privataoch offentliga i svenska nyhetsmedier?" Thesis, KTH, Medieteknik och interaktionsdesign, MID, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-89873.
Full textDiscussion forums on the Internet have today already established itself as a tool that everyone can use in information retrieval. This paper examines what the implications of free speech on Internet forums have on the public sphere today. Literature studies on the public sphere have been carried out in order to examine and discuss these issues. The essay also compares, in a particular case, the reporting from the Internet forum Flashback Forum with traditional mass media.
Tajik, Amirali, and Lourdes Malinao. "Rösterna på Flashback : En studie om virtuell gemenskap på ett internetforum kring dödsskjutningarna i Malmö 2018." Thesis, Luleå tekniska universitet, Institutionen för konst, kommunikation och lärande, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-73817.
Full textNilsson, Patricia, and Caroline Meyer. "Att leva eller överleva : En studie om åsikter kring riksnormens täckning bland skribenter på internetforumet Flashback." Thesis, Linnéuniversitetet, Institutionen för socialt arbete (SA), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-61605.
Full textAlmgren, Emma. "Flashback eller Backlash? : En strukturanalys av genusordningen i J.R.R Tolkiens och Peter Jacksons Lord of the Rings." Thesis, Stockholm University, Department of Ethnology, Comparative Religion and Gender Studies, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-383.
Full textTibell, Caroline. "Det schyssta sexköpet : En diskursanalys av hur sexköp framställs som en legitim handling på diskussionsforumet Flashback Forum." Thesis, Stockholms universitet, Sociologiska institutionen, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-148293.
Full textHoferichter, Vera [Verfasser], Thomas [Akademischer Betreuer] [Gutachter] Sattelmayer, and Friedrich [Gutachter] Dinkelacker. "Boundary Layer Flashback in Premixed Combustion Systems / Vera Hoferichter ; Gutachter: Friedrich Dinkelacker, Thomas Sattelmayer ; Betreuer: Thomas Sattelmayer." München : Universitätsbibliothek der TU München, 2017. http://d-nb.info/1132774330/34.
Full textCellier, Antony Hermann Guy. "Detection and Identification of Instability and Blow-off/Flashback Precursors in Aeronautical Engines using Deep Learning techniques." Thesis, KTH, Kraft- och värmeteknologi, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-272079.
Full textUtvecklingen av injektionsprocesser mot mer bränsleeffektiva och mindre förorenande förbränningssystem, tenderar att göra dem mer benägna att utsättas för kritiska händelser som Thermo-Acoustic Instabilities, Blow-Off och Flash-Back. Dessutom diskuterar flygmotorkonstruktörer möjligheten att använda Dihydrogen som sekundärt eller som huvudbränsle. Det modifierar drastiskt systemets stabilitet och det väcker frågan hur man kan använda det effektivt. Att kunna förutsäga kritiska fenomen blir en nödvändighet för att använda ett system utan att behöva att på förhand testa varje konfiguration och utan att reducera användarens säkerhet. Baserat på Deep-Learning-tekniker och Speech-Recognition-tekniker, presenterar följande studie stegen för att utveckla ett verktyg som kan upptäcka och översätta föregångare till instabilitet hos en swirled flygmotorerinsprutningspump som är innesluten i en förbränningskammare. De lovande resultaten leder till idéer om hur man kan anpassa det här verktyg till ett system i verklig storlek.