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Dissertationen zum Thema "VDA 19"

1

Mostafaee, Mani. "Six Sigma for quality assurance of Lithium-ion batteries in the cell assembly process : A DMAIC field study at Northvolt." Thesis, Luleå tekniska universitet, Institutionen för ekonomi, teknik, konst och samhälle, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-85966.

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Lack of technical cleanliness and particle contaminations in Lithium-ion battery manufacturing affect the performance of batteries which are a risk for the safety and quality of the product. Therefore, part of the manufacturing process occurs inside the Clean and Dry room area to maintain technical cleanliness. This paper aims to provide a framework to control particle contamination inside the Clean and Dry room and strengthen the product's quality and safety. A literature study was conducted, which was completed by a field study at Northvolt Labs in Västerås to achieve the study's aims. The study contributes to existing theories by providing a framework to find root causes of particle contamination in the manufacturing process based on the existing literature and standards. The Six Sigma problem-solving methodology DMAIC was implemented to conduct the field study. A risk assessment was conducted to find the possible threats toward technical cleanliness in the cell assembly process. The risk sources were identified by implementing measurement methods from relevant standards. The results indicate a high risk for technical cleanliness are coming from the decontamination method, material, machines, and environment. Furthermore, several recommendations were given that are expected to decrease the amount of nonconformity in the process.<br>Brist på teknisk renhet och partikelföroreningar vid tillverkning av litiumjonbatterier påverkar dess prestanda och utgör en risk för produktens säkerhet och kvalitet. Därför sker en del av tillverkningsprocessen i ett Clean &amp; Dry rum för att upprätthålla teknisk renhet. Denna uppsats syftar till att ge ett ramverk för att kontrollera partikelföroreningar och därmed stärka produktens kvalitet och säkerhet. För att uppnå syftet genomfördes först en litteraturstudie vilket vidare kompletterades med en fältstudie vid Northvolt Labs i Västerås. Studien bidrar till befintliga teorier genom att tillhandahålla ett ramverk för att hitta och åtgärda rotorsaker till partikelkontaminering i tillverkningsprocessen baserat på befintlig litteratur och standarder. Sex Sigma problemlösningsmetoden DMAIC implementerades för att genomföra fältstudien. En riskbedömning genomfördes för att hitta riskfyllda aktiviteter i processen. Vidare implementerades mätmetoder från relevanta standarder för att mäta kontamineringsnivån. Resultaten indikerar stor risk för tekniskrenhet från saneringsmetoder, material, maskiner och miljön. Vidare rekommenderas flera åtgärder för att underhålla tekniskrenhet vilka förväntas minska avvikelser i processen.
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Rosenblatt, Pablo. "Impactos del COVID 19 en la vida y los negocios." Universidad Peruana de Ciencias Aplicadas (UPC), 2020. http://hdl.handle.net/10757/652625.

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Webinar a cargo del Dr. Pablo Rosenblatt (Chile), en el que hablará del impacto que el COVID 19 ha tenido sobre el estilo de vida de las personas y como este impacto se ha visto reflejado en los diferentes modelos de negocio. Dentro del análisis se comprenden las realidades Estadounidenses, Chilenas y Peruanas.
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Björklund, Sandra, and Grönros Sophie. "Mellanmänsklig kontakt vid distansundervisning via video." Thesis, Stockholms universitet, Psykologiska institutionen, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-194013.

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Mellanmänsklig kontakt är viktigt för oss människor. I dagens värld har kontakt via virtuella möten ökat, och bland annat skolor har börjat använda sig av distansundervisning via videomöten i allt större utsträckning. Syftet med denna studie är att undersöka hur lärare och studenter på högskolenivå upplever den mellanmänskliga kontakten vid distansundervisning via video. Totalt intervjuades sex lärare och sex studenter på högskolenivå. Databearbetningen skedde enligt tematisk analys. Resultatet visade på svårigheter att bygga relationer, bristande överblick över andras reaktioner, begränsad kommunikation och bristande deltagande i undervisningen. Detta framgick dock kunna motverkas av påslagna kameror, god teknisk utrustning, tidigare relation till varandra, mindre grupper, distraktionsfri studiemiljö och interaktiva moment. Resultatet speglar tidigare teori och bidrar samtidigt till en större förståelse för hur de mellanmänskliga aspekterna av undervisning påverkats av övergången till distansundervisning. I diskussionen tas möjliga källor till eventuell snedvridning av resultatet upp, såsom extra begränsningar kopplat till covid-19.
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4

Sneha, Sweta. "Patient Monitoring via Mobile Ad Hoc Network: Power Management, Reliability, and Delays." Digital Archive @ GSU, 2008. http://digitalarchive.gsu.edu/cis_diss/19.

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ABSTRACT PATIENT MONITORING VIA MOBILE AD HOC NETWORK - MAXIMIZING RELIABILITY WHILE MINIMIZING POWER USAGE AND DELAYS BY SWETA SNEHA May 22nd, 2008 Committee Chair: Dr. Upkar Varshney Major Department: Computer Information Systems Comprehensive monitoring of patients based on wireless and mobile technologies has been proposed for early detection of anomalies, provision of prompt medical attention, and corresponding reduction in healthcare expenses associated with unnecessary hospitalizations and treatment. However the quality and reliability of patient monitoring applications have not been satisfactory, primarily due to their sole dependence on infrastructure-oriented wireless networks such as wide-area cellular networks and wireless LANs with unpredictable and spotty coverage. The current research is exploratory in nature and seeks to investigate the feasibility of leveraging mobile ad hoc network for extending the coverage of infrastructure oriented networks when the coverage from the latter is limited/non-existent. Although exciting, there are several challenges associated with leveraging mobile ad hoc network in the context of patient monitoring. The current research focuses on power management of the low-powered monitoring devices with the goal to maximize reliability and minimize delays. The PRD protocols leveraging variable-rate transmit power and the PM-PRD scheme are designed to achieve the aforementioned objective. The PRD protocols manage power transmitted by the source and intermediate routing devices in end to end signal transmission with the obejective to maximize end to end reliability. The PM-PRD scheme operationalizes an appropriate PRD protocol in end to end signal transmission for diverse patient monitoring scenarios with the objective to maximize reliability, optimize power usage, and minimize delays in end to end signal transmission. Analytical modeling technique is utilized for modeling diverse monitoring scenarios in terms of the independent variables and assessing the performance of the research artifacts in terms of the dependent variables. The evaluation criterion of the research artifacts is maximization of reliability and minimization of power usage and delays for diverse monitoring scenarios. The performance evaluation of the PRD protocols is based on maximization of end to end reliability in signal transmission. The utility of the PM-PRD scheme is associated with operationalizing an appropriate protocol for a given monitoring scenario. Appropriateness of a protocol for a given scenario is based on the performance of the PRD protocols with respect to the dependent variables (i.e., end to end reliability, end to end power usage, and end to end delays). Hence the performance evaluation of the PRD protocols in terms of the dependent variables is utilized to (a) discover the best protocol and (b) validate the accuracy and utility of the PM-PRD scheme in allocating the best protocol for diverse monitoring scenarios. The results validate the effectiveness of the research artifacts in maximizing reliability while minimizing power usage and delays in end to end signal transmission via a multi-hop mobile ad hoc network. Consequently the research establishes the feasibility of multi-hop mobile ad hoc network in supplementing the spotty network coverage of infrastructure oriented networks thereby enhancing the quality and dependability of the process of signal transmission associated with patient monitoring applications.
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Sidibé, Myriam, and Ismail Muna Ahmed. "Vad har 18-19 åringar för attityder mot Functional Food? : - En kvalitativ studie." Thesis, Mälardalen University, School of Sustainable Development of Society and Technology, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-4620.

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<p><strong>Problem:</strong> What attitudes do young adults have towards Functional food?</p><p>Is there any relation between these attitudes and young adults behaviour towards Functional Food?</p><p><strong>Purpose:</strong> The purpose of our thesis is to understand young adults attitudes towards Functional Food and also examine the relation between these attitudes and their behaviour towards Functional Food.<p> </p></p><p><strong>Method:</strong> The authors of this thesis have used a qualitative method for data collection, focus group interviews.  There were two focus groups interviews performed on high-school students at Alléskolan in Hallsberg. The interview questions and the analysis of the primary data have been based on the frame of reference.<strong> </strong></p><p><strong>Conclusion</strong>:<p> </p></p><p>Our investigation shows similar results as previous studies about consumers attitudes towards Functional Food. Our respondents had mixed attitudes towards Functional Food. The consumers in general still have a sceptical attitude towards Functional Food. To gain an increased consumption of Functional Food in the Swedish market, the consumer must change their attitudes towards Functional Food. The manufacturers of Functional Food must improve their information about Functional Food products to the consumer and highlight the benefits of Functional Food.</p>
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Minholm, Felix, and Strandberg Robin Erata. "Covid-19, vad har du gjort med idrott och hälsa? : Lärare i idrott och hälsa och deras upplevelser av distansundervisning under covid-19." Thesis, Gymnastik- och idrottshögskolan, GIH, Institutionen för rörelse, kultur och samhälle, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:gih:diva-6550.

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Syfte och frågeställningar Syftet med studien är att undersöka hur lärare i idrott och hälsa på gymnasiet har arbetat med distansundervisning under covid-19. Frågeställningarna formulerades på följande vis: ●      Vilka för- och nackdelar upplever lärarna att det finns med fysisk aktivitet i distansundervisningen under covid-19?   ●      Hur upplever lärarna arbetet med teknik- och internetbaserade program under covid-19? ●      Hur anser lärare i idrott och hälsa att elevernas lärande påverkas av distansundervisning under covid-19? ●      Hur har idrottsundervisningen i fysisk aktivitet bedrivits under covid-19? Metod  Studien innefattar fem lärare i idrott och hälsa på gymnasiet som valdes ut genom bekvämlighetsurval och snöbollsurval. Metoden som användes för datainsamling till denna kvalitativa studie var semistrukturerade intervjuer. Data från intervjuerna transkriberades och analyserades med hjälp av innehållsanalys. Resultat   Övergripande visade resultatet att det (1) finns många nackdelar och få fördelar med distansundervisning. (2) Lärarna upplevde digital undervisning väldigt olika där lärarna som var tekniskt kunniga upplevde den som enkel att implementera och lärarna som var mindre tekniskt kunniga upplevde svårigheter. (3) Lärarna upplevde att eleverna lärde sig mindre med distansundervisning och (4) eleverna har arbetat med uppgifter enskilt för att sedan filma sitt lärande och progression. Slutsats  I likhet med tidigare forskning visade studien att det finns många nackdelar och problem med distansundervisning. Studien visade även att skolorna och lärarna var dåligt förberedda och hur de upplevde distansundervisningen berodde mycket på teknisk kompetens. Pandemin är levande i allra högsta grad och studien visar att lärare behöver mer teknisk kunskap och skolorna behöver ha en plan för hur distansundervisning ska gå till här och nu men även om det behövs i framtiden.<br>Aim  The purpose of this study was to investigate how high school teachers taught physical education during distance learning and covid-19.   The study has following research questions:  ●      Witch pros and cons appeared while working with distance learning in physical education during covid-19?  ●      How did teachers experience working with digital tools and internet-based programs during covid-19?  ●      What is the teacher’s opinion about students learning and how it's affected by distance learning during covid-19?  ●      How did teachers educate students in physical education during covid-19?  Method  The study involved five high school teachers in physical education and a qualitative method which included semi structured interviews was used. The collected data was transcribed and then analyzed using a content analysis.   Results  The overall results show that (1) there are many cons and few pros regarding distance learning. (2) Teachers experienced distance learning very differently depending on their internet and digital skills. (3) The students learned less during distance learning and (4) the students worked with different tasks alone and recorded their learning and progression.   Conclusion  Like the other studies the results show that there are many cons and few pros regarding distance learning. The schools and teachers were not prepared for this pandemic and the conclusion is that teachers need more digital knowledge, and the schools need to be prepared.
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Friederichs, Gina. "Iron-based superconductors via soft chemistry." Diss., Ludwig-Maximilians-Universität München, 2015. http://nbn-resolving.de/urn:nbn:de:bvb:19-185306.

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Leoni, Valerio <1985&gt. "Role of αvβ3 – Integrin and TLR2 in the innate response to Herpes Simplex Virus infection and Delivery of retargeted oncolytic Herpes Simplex via carrier cells". Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2014. http://amsdottorato.unibo.it/6464/.

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In the first part of my thesis I studied the mechanism of initiation of the innate response to HSV-1. Innate immune response is the first line of defense set up by the cell to counteract pathogens infection and it is elicited by the activation of a number of membrane or intracellular receptors and sensors, collectively indicated as PRRs, Patter Recognition Receptors. We reported that the HSV pathogen-associated molecular patterns (PAMP) that activate Toll-like receptor 2 (TLR2) and lead to the initiation of innate response are the virion glycoproteins gH/gL and gB, which constitute the conserved fusion core apparatus across the Herpesvirus. Specifically gH/gL is sufficient to initiate a signaling cascade which leads to NF-κB activation. Then, by gain and loss-of-function approaches, we found that αvβ3-integrin is a sensor of and plays a crucial role in the innate defense against HSV-1. We showed that αvβ3-integrin signals through a pathway that concurs with TLR2, affects activation/induction of interferons type 1, NF-κB, and a polarized set of cytokines and receptors. Thus, we demonstrated that gH/gL is sufficient to induce IFN1 and NF-κB via this pathway. From these data, we proposed that αvβ3-integrin is considered a class of non-TLR pattern recognition receptors. In the second part of my thesis I studied the capacity of human mesenchymal stromal cells isolated by fetal membranes (FM-hMSCs) to be used as carrier cells for the delivery of retargeted R-LM249 virus. The use of systemically administrated carrier cells to deliver oncolytic viruses to tumoral targets is a promising strategy in oncolytic virotherapy. We observed that FM-hMSCs can be infected by R-LM249 and we optimized the infection condition; then we demonstrate that stromal cells sustain the replication of retargeted R-LM249 and spread it to target tumoral cells. From these preliminary data FM-hMSCs resulted suitable to be used as carrier cells
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Avendaño, Contreras Ignacio. ""Cada uno en lugar aparte para no mancharse": encuentros y disensos culturales entre el pueblo y la élite en las fiestas del diecinueve en la Pampa y la nochebuena en la Alameda: Santiago de Chile (1850-1900)." Tesis, Universidad de Chile, 2017. http://repositorio.uchile.cl/handle/2250/148153.

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Messaoudi, Rodriguez Maria Yolanda. "EL M-19 : Análisis sobre las causas que llevaron a este movimiento revolucionario a dejar las armas y a formar parte de la vida política del país." Thesis, Stockholms universitet, Institutionen för spanska, portugisiska och latinamerikastudier, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-74268.

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A principios de la década de 1970 se crea en Colombia una inte-resante alternativa política clandestina, denominada Movimiento 19 de Abril, más comúnmente conocida como movimiento guerri-llero M-19.El objetivo del presente estudio, es considerar cuales fueron los factores que llevaron a este movimiento insurgente a depo-ner las armas y a entrar a formar parte del sistema que tanto combatió tanto militar como ideológicamente. Por lo tanto en es-ta investigación se analiza en forma detallada y en orden cro-nológico algunos de los aspectos que incidieron en su conforma-ción, desarrollo y posterior determinación de legalizarse como partido político;Para desarrollar la investigación y facilitar su comprensión, hemos examinado los acontecimientos socio-políticos que sirvie-ron de fondo a las luchas populares del proletariado urbano como también las reivindicaciones de la masa campesina, durante los años 70 y 80 del siglo XX.Finalmente, el estudio nos llevó a concluir que la transición M-19 a partido político fue un proceso democrático con una enorme repercusión en la modernización del Estado y en la for-ma de ejercer la democracia en el país.
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