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Dissertations / Theses on the topic 'Jetset'

Author: Grafiati

Published: 29 July 2024

Last updated: 31 July 2024

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1

Tyers, Roger. ""Nudging the jetset to offset" : voluntary carbon offsetting for air travel." Thesis, University of Southampton, 2016. https://eprints.soton.ac.uk/407314/.

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In recent years in both academia and in many western governments, ‘Nudge’-style interventions have been tested and applied to various policy areas including public health, road safety, and saving domestic energy. Often these have been successful in terms of changing behaviour, partly because the interests of the citizen-consumer (pro-self ends) and those of the environment/society (pro-social ends) are in convergence. Less research has been conducted into using nudges for solely pro-social behaviours. In this thesis I discuss the application of nudges to promote one pro-social behaviour: voluntary carbon offsetting for air travel. Testing nudges through randomised controlled trials and evaluating them through qualitative focus groups, nudges were found to have limited utility in promoting this target behaviour. Two explanations are proposed, one in terms of the design of the nudges, and one in terms of the substantive problems associated with this target behaviour. In terms of the design of the interventions trialled in this study, ‘too much information’ being provided, a ‘distant’ social norm message, and a lack of attention to ‘intrinsic values’ at the expense of more technical language may be barriers which pro-social nudges ought to avoid. Secondly and more substantively, it is argued that when pro-social behaviours are not perceived as ‘common’, are not ‘visible’ (i.e. others cannot ‘see’ them being done, and so they are resistant to the power of social norms), and they are associated with negatively-constructed ‘cousins’ (as carbon offsetting is associated with invasive ‘extra’ services), then nudges are unlikely to be effective. This is a key empirical contribution to the literature regarding the practical boundaries at which nudging may start to fail. These findings act as an empirical demonstration of the theoretical contribution of the thesis, which is a novel portrayal of the nudge paradigm as macro-libertarianism and micro-paternalism: a form of neo-liberal behavioural governance which is politically attractive, but is often ineffectual. The thesis concludes by arguing that when the interests of the citizen-consumer and those of the environment/society are not in convergence, nudging may be inadequate and tougher regulatory approaches, such as ‘budging’, may be necessary. Implications for both behavioural public policy and sustainable aviation are discussed.

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2

Feger, Claudia. ""Ethos heißt jetzt Auflage."." Universitätsbibliothek Chemnitz, 2005. http://nbn-resolving.de/urn:nbn:de:swb:ch1-200501816.

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3

Mello, Lidia Aparecida Rodrigues Silva. "La Jetée : um e outro." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2012. http://hdl.handle.net/10183/67260.

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Cette dissertation tisse une discussion à propos des images-textes , qui à partir du temps et de la mémoire font éclater des rencontres et tensions dans La Jetée photo et ciné-roman, film et livre, de l’écrivain contemporain et aussi, réalisateur français, Chris Marker. Je cherche à comprendre comment se produisent les rencontres et les tensions entre le film et le livre. J’utilise comme méthodologie la notion de rhizome de Deleuze et Guattari. J´essaie de créer une cartographie composée de plateaux , soutenue par la lecture de philosophes modernes français, par des théoriciens du cinéma, de la photographie et de la littérature. Les plateaux sont ici considérés comme des possibilités, comme des intensités qui vibrent et forment un rhizome sans unité présumée, mais dans une multiplicité non linéaire qui condense une approche théorique. Je pense le film et le livre La Jetée du point de vue de l'indiscernable, comme images-textes , car à mon avis, ils sont en même temps l’un Et l'autre -images et textes. Et j’aborde l´approche du temps et de la mémoire parce qu'ils sont les thèmes principaux de ces objets d'étude. Je n'ai pas l'intention d'épuiser les possibilités de ces langages, parce qu’ils sont nombreux, mais je profite de ces entrées et sorties, propres à une cartographie rhizomatique pour créer un agencement entre le cinéma et la littérature, em essayant d’étendre l’horizon esthétique de ces arts, mettant en évidence ce qui, dans le film et le livre La Jetée ne sont pas apparents.
Esta dissertação versa sobre imagens-textos , que, a partir do tempo e da memória fazem irromper encontros e tensões em La Jetée photo e ciné-roman, filme e livro, do contemporâneo realizador-escritor francês Chris Marker. Busco perceber como se dão os encontros e tensões entre o filme e o livro. Utilizo como pressuposto metodológico a noção de rizoma de Deleuze e Guattari. Intento criar uma cartografia composta por platôs , sustentada por leituras de filósofos modernos franceses e por teóricos do cinema, da fotografia e da literatura. Os platôs são entendidos como possibilidades, como intensidades que vibram e formam um rizoma sem unidade presumida, numa multiplicidade não-linear que condensa uma abordagem teórica. Penso o filme e o livro La Jetée no âmbito do indiscernível , como imagens-textos , pois, a meu ver, são ao mesmo tempo um e outro - imagéticos e textuais. E abordo o tempo e a memória por serem temas principais dos objetos de estudo. Não pretendo exaurir as possibilidades de explorar essas linguagens, pois são muitas, mas aproveito as entradas e saídas, próprias de uma cartografia rizomática, para criar um agenciamento entre cinema e literatura, mirando expandir o horizonte estético de tais artes, trazendo às vistas o que no fílmico e no literário de La Jetée não estão aparentes.

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4

Schönfuß-Krause, Renate. "Bürgermeister Otto Bauer - jetzt online." Teamwork Schönfuß, 2019. https://slub.qucosa.de/id/qucosa%3A73763.

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Paul Eduin Otto Bauer (1850 Zwickau - 1916 Radeberg) war der erste Radeberger Bürgermeister, der auf Grund außergewöhnlicher Leistungen und Verdienste zum Wohle der Stadt Radeberg zum „Bürgermeister auf Lebenszeit“ ernannt wurde. Sein Leben bestimmte die Kommunalpolitik, für die er sich mit ganzer Kraft einsetzte. Nach einer Referendarzeit in Leipzig begleitete er das Amt eines Bürgermeisters in Burgstädt und Ronneburg/Thür. und ab 1895 in Radeberg. Radeberg befand sich in der Entwicklung zu einer bedeutenden Industriestadt mit einer stetig anwachsenden Einwohnerzahl. Große Aufgaben standen an, mit Wohnungsbau, Schulneubau, Straßenbau, Neubau eines Städtischen Krankenhauses, einer Realschule, Bau eines Königl. Feuerwerks-Laboratoriums, Entwicklung eines neuen Wohngebietes „Radeberger Süd-Vorstadt“ u.v.a.m. Bauer wirkte ebenfalls überregional zum Wohle Sachsens.

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5

Smith, Barton Lee. "Synthetic jets and their interaction with adjacent jets." Diss., Georgia Institute of Technology, 1999. http://hdl.handle.net/1853/18889.

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6

Schlenker, Lars, Jana Riedel, and Claudia Albrecht. "Ist das jetzt schon E-Learning?" Universitätsbibliothek Leipzig, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-141001.

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Digitale Medien in der Lehre einzusetzen birgt vielfältige Potentiale, die jedoch durch Hochschullehrende in Abhängigkeit von ihren Kompetenzen, Einstellungen und den Rahmenbedingungen, unter denen Lehre geplant und durchgeführt wird, häufig nicht vollständig ausgeschöpft werden.

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7

Manfroi, Aldo J. "Zonal jets /." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 2001. http://wwwlib.umi.com/cr/ucsd/fullcit?p3035898.

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8

Ghahremanian, Shahriar. "Near-Field Study of Multiple Interacting Jets : Confluent Jets." Doctoral thesis, Linköpings universitet, Energisystem, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-113259.

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This thesis deals with the near-field of confluent jets, which can be of interest in many engineering applications such as design of a ventilation supply device. The physical effect of interaction between multiple closely spaced jets is studied using experimental and numerical methods. The primary aim of this study is to explore a better understanding of flow and turbulence behavior of multiple interacting jets. The main goal is to gain an insight into the confluence of jets occurring in the near-field of multiple interacting jets. The array of multiple interacting jets is studied when they are placed on a flat and a curved surface. To obtain the boundary conditions at the nozzle exits of the confluent jets on a curved surface, the results of numerical prediction of a cylindrical air supply device using two turbulence models (realizable 𝑘 − 𝜖 and Reynolds stress model) are validated with hot-wire anemometry (HWA) near different nozzles discharge in the array. A single round jet is then studied to find the appropriate turbulence models for the prediction of the three-dimensional flow field and to gain an understanding of the effect of the boundary conditions predicted at the nozzle inlet. In comparison with HWA measurements, the turbulence models with low Reynolds correction (𝑘 − 𝜖 and shear stress transport [SST] 𝑘 − 𝜔) give reasonable flow predictions for the single round jet with the prescribed inlet boundary conditions, while the transition models (𝑘 − 𝑘l − 𝜔𝜔 and transition SST 𝑘 − 𝜔) are unable to predict the flow in the turbulent region. The results of numerical prediction (low Reynolds SST 𝑘 − 𝜔 model) using the prescribed inlet boundary conditions agree well with the HWA measurement in the nearfield of confluent jets on a curved surface, except in the merging region. Instantaneous velocity measurements are performed by laser Doppler anemometry (LDA) and particle image velocimetry (PIV) in two different configurations, a single row of parallel coplanar jets and an inline array of jets on a flat surface. The results of LDA and PIV are compared, which exhibit good agreement except near the nozzle exits. The streamwise velocity profile of the jets in the initial region shows a saddle back shape with attenuated turbulence in the core region and two off-centered narrow peaks. When confluent jets issue from an array of closely spaced nozzles, they may converge, merge, and combine after a certain distance downstream of the nozzle edge. The deflection plays a salient role for the multiple interacting jets (except in the single row configuration), where all the jets are converged towards the center of the array. The jet position, such as central, side and corner jets, significantly influences the development features of the jets, such as velocity decay and lateral displacement. The flow field of confluent jets exhibits asymmetrical distributions of Reynolds stresses around the axis of the jets and highly anisotropic turbulence. The velocity decays slower in the combined regio of confluent jets than a single jet. Using the response surface methodology, the correlations between characteristic points (merging and combined points) and the statistically significant terms of the three design factors (inlet velocity, spacing between the nozzles and diameter of the nozzles) are determined for the single row of coplanar parallel jets. The computational parametric study of the single row configuration shows that spacing has the greatest impact on the near-field characteristics.

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9

Poldjaeva, Jelena. "Die Zeitschrift "Sovetskaja muzyka" (jetzt "Muzykal’naja akademija")." Universitätsbibliothek Leipzig, 2017. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-219064.

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10

Lin, Kuanchung J. "Modeling viscoelastic jets /." The Ohio State University, 1988. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487594970651388.

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11

Fletcher, Gregory. "A Measurement of W+jets Z+jets with the ATLAS Detector." Thesis, Queen Mary, University of London, 2015. http://qmro.qmul.ac.uk/xmlui/handle/123456789/8047.

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A study is presented on the production of vector boson (W and Z0) events in association with recoiling hadronic activity in the form of hadronic jets, using proton-proton collisions at the LHC. The dataset was taken by the ATLAS detector during the 2011 data-taking run, at a centre of mass energy p s = 7 TeV, and corresponds to an integrated luminosity of 4.6 fb 1. A measurement of the cross-section ratio of W+jets Z+jets events is de ned, reducing the large systematic uncertainties inherent in the experimental measurement of such events. Inclusive and di erential cross-sections are presented for W+jets Z+jets , as a function of a range of kinematic variables, and are compared to state-of- the-art theoretical predictions.

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12

Silva, Obregón Gustavo Manuel. "Implementación de unwarping de videos omnidireccionales en la plataforma Jetson TK1." Bachelor's thesis, Pontificia Universidad Católica del Perú, 2015. http://tesis.pucp.edu.pe/repositorio/handle/123456789/6433.

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El unwarping es un método utilizado para transformar imágenes omnidireccionales en imágenes panorámicas, el cual es empleado en aplicaciones tales como seguridad, visión robótica, geolocalización, etc. El procesamiento de imágenes omnidireccionales de alta resolución y su aplicación en dispositivos móviles se ve limitado por el costo computacional y costo energético. Para ello, se plantea como herramienta principal utilizar la plataforma Jetson TK1, la cual es un system on chip (SoC) creada por Nvidia que se caracteriza por su alto rendimiento computacional y bajo costo energético al tener incorporado 192 núcleos en su procesador gráfico. En el presente trabajo se desarrolla e implementa un algoritmo para realizar el unwarping de videos omnidireccionales en la plataforma Jetson TK1, la cual permite optimizar las transferencias y procesamientos de datos realizados en su GPU. El algoritmo es implementado en el entorno de programación MATLAB y CUDA para evaluar error por cálculo y eficiencia computacional. Asimismo, se compara en rendimiento computacional con el método PMPA, el cual es una alternativa escrita en lenguaje C computacionalmente eficiente en comparación a otros métodos presentados en el Capítulo 1. Los resultados de la comparación muestran que la implementación propuesta es 1.35 a 8.12 veces más rápida que el algoritmo PMPA para los tipos de interpolación utilizados (interpolación vecino más cercano e interpolación bilineal). El orden que sigue la tesis es el siguiente: En el primer capítulo se realizara un breve estado del arte sobre los métodos para realizar el unwarping de imágenes omnidireccionales. En el segundo capítulo se cubren los aspectos teóricos del modelo de programación CUDA necesarios para el diseño del algoritmo paralelo. En el tercer capítulo se describe de forma detallada el método propuesto y su diseño paralelo. Por ´ultimo, en el cuarto capítulo se presentan los resultados computacionales seguido de las conclusiones y recomendaciones. Finalmente, cabe señalar que el trabajo de investigación realizado fue presentado en el GPU Technology Conference 2015.
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13

Otto, Alexander. "„Wenn nicht jetzt, dann machst du es nie!“." Doctoral thesis, Humboldt-Universität zu Berlin, 2021. http://dx.doi.org/10.18452/23094.

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Die Arbeit widmet sich der Gruppe der nicht-traditionellen Studierenden. Unter dem Begriff nicht-traditionelle Studierende werden dabei all jene Studierenden gefasst, die – ohne (Fach-)Abitur – auf der formalen Grundlage beruflichen Qualifikation eine Hochschulzugangsberechtigung erhalten haben. Einen Ausgangspunkt der Untersuchung bildet der Beschluss der Kultusministerkonferenz (KMK) von 2009 zum „Hochschulzugang für beruflich qualifizierte Bewerber ohne schulische Hochschulzugangsberechtigung“. Im Fokus der Untersuchung steht das Phänomen der Studienentscheidung. Gefragt wird: Wie und warum haben sich nicht-traditionell Studierende für ihr Studium entschieden? Empirische Grundlage bildet eine Interviewstudie mit insgesamt 82 nicht-traditionellen Studierenden, die bis zu viermal über den Verlauf ihres Studiums hinweg befragt wurden. Die Ergebnisse zeigen, dass die Studienentscheidungen vor allem unter den subjektiven Eindrücken und objektiven Bedingungen der Erwerbsarbeit getroffen werden und dass Studienmotive stark von berufsbezogenen Orientierungen gekennzeichnet sind. Die Studienentscheidungen werden durch höchst individuelle Ereignisse und Entwürfe nicht nur angestoßen, sondern auch vollzogen. Allein die Tatsache, dass ein Übergang aus dem Beruf in die Hochschule keine gesellschaftlich genormten Präskripte aufweist, macht den Studienwunsch zu einer höchst individualisierten und selbstverantworteten Entscheidung. In Anschluss an Becks (1986) Individualisierungsthese wird die Studienentscheidung im Rahmen von Wahlbiografien durch das Zusammenspiel von Freisetzung, Entzauberung und Re-Integration als individualisierte Entscheidung rekonstruiert. Die Ergebnisse zeigen zudem eine tiefe Verankerung einer Normalitätsvorstellung von Lebensläufen, die im Entscheidungsprozess als Orientierungsmuster wirksam sind. Schließlich wird die Studienentscheidung auch als ein Prozess des Abwägens rekonstruiert. Neben den als fallübergreifend zu rezipierenden Ergebnissen schlägt die Arbeit schließlich eine typologische Bestimmung der Studienentscheidungen im Kontext biografischer Orientierungen vor.
The present paper examines the group of non-traditional students in Germany. The term non-traditional students defines all those students who have received their university entrance certificate based on occupational skills without having a school-based university entrance qualification. One starting point of this survey is based on the determination of the German „Kultusministerkonferenz“ in 2009. Under these conditions, educational decisions gain importance in later phases of life, at least for the group envisaged here. The focus of this study is the phenomenon of the decision to study. The empirical basis of the work is an interview study with a total of 82 non-traditional students who were questioned up to four times over the course of their studies. The results refer to a complex bundle of different aspects that constitute the decision. First of all, it is revealed that the decision to study is made under subjective perceptions and objective conditions of gainful employment, as well as, reasons to study are strongly marked by job-related orientations. The decision to study was initiated and fulfilled through highly individual life events and drafts. Even a transition from a job to an institution of higher education is socially non-standard; this makes the desire to study a highly individual and self-responsible decision. Following Beck´s (1986) thesis of individualization, the decision to study is reconstructed by biographical choices through interaction of detraditionalization, disenchantment and reintegration as an individualised decision. Furthermore, the results indicate a deep establishment of beliefs in institutionalized life course which affect the decision process as a pattern of orientation. Finally, the decision to study is also reconstructed as a process of balance pros and cons. In addition to the cross-case results to be received, this paper proposes a construction of types of study decisions in the context of biographical orientation.

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14

Fendt, Christian. "Formation of astrophysical jets." Thesis, [S.l. : s.n.], 2002. http://pub.ub.uni-potsdam.de/2003/0014/door.htm.

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15

Zahniser, Russell 1982. "Instabilities of rotating jets." Thesis, Massachusetts Institute of Technology, 2004. http://hdl.handle.net/1721.1/32752.

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Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Physics, 2004.
Includes bibliographical references (p. 33-34).
When a jet of water is in free fall, it rapidly breaks up into drops, since a cylinder of water is unstable. This and other problems involving the form of a volume of water bound by surface tension have yielded a wealth of theoretical and experimental results, and given insight into such phenomena as the shape of the Earth. Particularly interesting behaviors tend to emerge when the fluid in question is rotating; a drop may, for example, form a toroidal or ellipsoidal shape or even stretch out into some multi-lobed, non-axisymmetric form. In this paper, we investigate the properties of a rotating jet of water, and determine what regime of the parameter space are dominated by the various forms of instability. This is both predicted theoretically and demonstrated to be accurate experimentally. If we watch a jet of water as the rotation rate is gradually increased from zero, the drop size will start shrinking gradually, and then suddenly, rather than a single row of drops, we will see the jet breaking up into two-lobed, bar shaped forms, like the rung of a ladder. The point at which this transition occurs is characterized in terms of the rotational Bond number, B₀ = ... . The critical B₀ may be as low as 6, if there is a strong bias imparted by vibration of the table at an appropriate frequency, but for a perfectly quiescent rotating jet the second mode does not become dominant until a higher B₀. As the rotation rate is increased above this, the instability grows gradually more dramatic, and eventually the two lobes of each drop are breaking apart and flying outward. Then a transition to a third mode will occur, with three lobes in each drop; this is possible from a B₀ of 12, and dominant above a B₀ slightly higher than that. In general, mode m may occur whenever
(cont.) B₀ > m(m + 1).
by Russell Zahniser.
S.B.

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16

Wadhwa, Navish. "Non-coalescence of Jets." Thesis, Virginia Tech, 2012. http://hdl.handle.net/10919/42636.

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Contrary to common intuition, free jets of fluid can ``bounce'' off each other on collision in mid-air, through the effect of a lubricating air film that separates the jets. While there has been much work on coalescing jets of fluid and non-coalescence in other systems like drop-drop, drop on a bath, jet on a bath, non-coalescence of fluid jets has been little studied. A simple experimental setup was developed to stably demonstrate and study the non-coalescence of jets upon collision. This thesis presents the results of an experimental investigation of oblique collision between two fluid jets. The transition from bouncing to coalescence of jets is examined for various jet sizes and angles. Results indicate that the transition from bouncing to coalescence can be rationalized in terms of critical value of the dimensionless parameter Normal Weber Number, which represents the ratio between inertial and surface tension forces. A parametric study of the characteristic of bouncing jets, conducted by varying the nozzle diameter, jet velocity, angle of inclination and fluid viscosity reveals the scaling laws for the quantities involved such as contact time. These scaling laws help us in elucidating the role of various physical forces at play such as viscous stresses, capillary force and inertia
Master of Science

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Ben-Yeoshua, Moshe 1957. "Coaxial jets with swirl." Thesis, The University of Arizona, 1993. http://hdl.handle.net/10150/291734.

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The near field of coaxial air jets, with swirl in the outer one, was investigated experimentally. Axial and azimuthal velocities were mapped using hot-wire anemometry, and static pressure measurements were obtained using a pitot tube. The flow was visualized using a double-pass schlieren system. The flow is sensitive to both the amount of swirl, characterized by the swirl number S, and the mass flow ratio between the outer and inner jets, mr. A necessary condition for recirculation to occur was that S > 0.58 and mr > 8.5. The magnitude of a pressure deficit in the centerline strongly depends on mr, while the existence of swirl appears to have a triggering effect on setting up this pressure gradient. Spectral analysis shows distinct characteristics dependent on the occurrence of recirculation. Because these features were observed upstream of the recirculation region, the vortex breakdown in this experiment may be related to flow instabilities.

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Norenius, Linus. "Geoeffectiveness of Magnetosheath Jets." Thesis, Umeå universitet, Institutionen för fysik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-164846.

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In this report we present spacecraft and ground-based observations of magnetosheath jets impacting the magnetosphere, both as a case study and a statistical study. In the case study, jets were detected in the magnetosheath by the Magnetospheric MultiScale mission, MMS. By utilizing a data-based magnetosphericmodel (Tsyganenko T96 [29]), we estimated which jets were likely to impact the magnetopause and where they would do so. We examined ground based magnetometers, GMAGs, at the expected foot-point to the affected magnetic fieldline and compared this with the spacecraft observations. Theoretical transfertimes for a jet to be detectable by GMAGs have been estimated and compared with the observed time delay, from detection to GMAG response, and they were in good agreement for all cases. The times found for this geoeffective responsewere found to be around 1-2 min, and the response in the GMAGs was in the form of a pulse with an amplitude of around 50 nT. We suggest that jets of along enough time duration can be geoeffective in a way that they are detectable at ground level by GMAGs. It was also found that GMAGs fluctuate more during periods containing many detected jets. We performed our statistical study with the intention of comparing fluctuations in GMAG observations during Interplanetary Magnetic Field, IMF, configurations which is suggested to be favorable for jet creation. The IMF observationswas provided by the THEMIS (Time History of Events and Macroscale Interactions during Substorms) spacecraft. This was done by selecting periods of steady IMF with different orientations, and examining the GMAGs observed variations. GMAGs were selected based on a region where most of our foot-points were found in our previous case study. We performed this study over a three year interval, and found that GMAGs observe about 2 nT higher variation, according to their standard deviations, during radial IMF compared to northward IMF. During northward IMF we expect less effects from magnetopause phenomena, thus making it suitable to compare with radial IMF. Our statistical investigation support our findings that magnetosheath jets can be geoeffective in a waythat GMAGs can detect them.

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Li, Xianjun [Verfasser], and Kurt [Akademischer Betreuer] Jetter. "SIA matrices and non-negative stationary subdivision / Xianjun Li. Betreuer: Kurt Jetter." Hohenheim : Kommunikations-, Informations- und Medienzentrum der Universität Hohenheim, 2012. http://d-nb.info/1027354033/34.

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Chahuara, Silva Hector Francisco. "Implementación del detector de esquinas de Harris en la plataforma Jetson TK1." Bachelor's thesis, Pontificia Universidad Católica del Perú, 2017. http://tesis.pucp.edu.pe/repositorio/handle/123456789/8896.

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Las esquinas son puntos invariantes, estructurales y con alto contenido de información en una imagen. Estas son usadas en aplicaciones importantes de Procesamiento de imágenes o video entre las cuales destacan Navegación de UAVs (Unmanned Aerial Vehicles) [1] o Detección de objetos [2] que son importantes en distintas áreas y tienen requerimientos de tiempo real. Entre las soluciones para detección de esquinas propuestas destaca el detector de esquinas de Harris [3], el cual demuestra ser robusto y eficiente. El uso de plataformas que permiten realizar procesamiento paralelo permiten implementar métodos de alto costo computacional con un bajo tiempo de procesamiento. Entre ellas destacan los GPU (Graphic Processor Unit) que generalmente tienen un alto consumo energético, lo cual es inconveniente en aplicaciones dirigidas a dispositivos móviles como celulares, robots, drones, entre otros. Por ello, plataformas basadas en mobile CPU que tienen bajo consumo energético son opciones a tomar en cuenta. En la presente tesis se propone el diseño e implementación del Detector de esquinas de Harris en la plataforma Jetson TK1 de Nvidia [4] la cual se distingue por su bajo consumo energético y alto rendimiento. El método será implementado en MATLAB, ANSI-C y CUDA. Los resultados muestran que la implementación en CUDA presentada es hasta 32.08 veces aproximadamente más rápida que la implementación en ANSI-C y permite procesar imágenes de resolución full HD (1920 x 1080) en tiempo real. Además, es comparable a implementaciones en software en plataformas con mayores recursos e implementaciones en hardware usando FPGAs (Field Programmable Gate Array). La estructura del presente documento es la siguiente: En el primer capítulo se presenta el estado del arte sobre detección de esquinas y el Detector de esquinas de Harris. En el segundo capítulo se presenta la plataforma Jetson TK1. El diseño del algoritmo paralelo se detalla en el tercer capítulo. Por último, se presenta la implementación y sus resultados en el cuarto capítulo, seguido de las conclusiones y recomendaciones.
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Emmelkamp, Jetske [Verfasser]. "Die Klinik der HIV-Infektion: Eine Analyse der RESINA-Kohorte / Jetske Emmelkamp." Düsseldorf : Universitäts- und Landesbibliothek der Heinrich-Heine-Universität Düsseldorf, 2011. http://d-nb.info/1017839220/34.

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Jetter, Stefan [Verfasser], and Bernd [Akademischer Betreuer] Bertsche. "Zuverlässigkeitsprognose mechanischer Komponenten auf Basis simulierter Betriebsfestigkeit / Stefan Jetter ; Betreuer: Bernd Bertsche." Stuttgart : Universitätsbibliothek der Universität Stuttgart, 2020. http://d-nb.info/121853236X/34.

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Brinkmann, Petra. "Schluss mit dem Medienbruch: Leipziger Leser bezahlen jetzt online." SLUB Dresden, 2016. https://slub.qucosa.de/id/qucosa%3A7403.

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Die Nutzung von Online-Medien ist bequem und erweitert das Bibliotheksangebot um ein Vielfaches. Wenn man jedoch direkt vor Ort erscheinen muss, nur um zum Beispiel die Jahresgebühr zu zahlen, kann das ganz schön nerven. Die Leipziger Städtischen Bibliotheken (LSB) haben deshalb das Bezahlsystem „ePayBL“ eingeführt, mit dem Benutzer online zahlen können und sofort nach der Anmeldung Zugang zu eMedien und Datenbanken haben.

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24

Sander, Marianne. ""Jetzt könnt' ich mir das erlauben, jetzt sind die Kinder gross" - wissenschaftliche Weiterbildung von Frauen in der "Empty-nest"-Phase eine qualitative Studie /." [S.l.] : [s.n.], 2000. http://www.diss.fu-berlin.de/2001/31/index.html.

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25

Dubois, Julien. "Etude expérimentale de jets libres, compressibles ou en présence d'un obstacle." Thesis, Aix-Marseille 2, 2010. http://www.theses.fr/2010AIX22010/document.

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L’objectif de ces travaux est d’étudier expérimentalement la dispersion d’hydrogène pour évaluer l’impact des fuites chroniques ou accidentelles qui peuvent intervenir en milieu libre ou encombré, à faible ou à forte pression, sur un véhicule fonctionnant avec une pile à combustible. Les fuites étudiées sont assimilées à des jets verticaux, turbulents, axisymétriques, à densité variable, et issus d’orifices cylindriques de 1 à 3 mm de diamètre. Un banc expérimental a été conçu pour étudier ces fuites : l’hydrogène a été remplacé par de l’hélium pour des raisons de sécurité. Il résiste à une pression de 200 bars et permet de positionner un obstacle dans le jet. La technique BOS (Background Oriented Schlieren) a été adaptée aux jets millimétriques et à la présence d’un obstacle. Un soin particulier à été apporté à la mise en place de cette technique. Les résultats obtenus sont en accord avec ceux de la littérature quand il en existe. De nouvelles lois de similitude sont proposées, plus représentatives de la physique des jets : libres subsoniques, libres sousdétendus, et subsoniques en présence d’un obstacle (sphère). À partir de l’analyse de la structure compressible des jets sous-détendus, de nouvelles lois sont aussi proposées pour estimer la position et le diamètre du disque de Mach puis la longueur du cône potentiel. Enfin, deux lois d’estimation du volume et de la masse inflammables de jets libres d’hydrogène sont proposées : elles sont fonction du débit massique de la fuite
The aim of this work is to experimentally investigate the hydrogen dispersion to evaluate the impact of chronic or accidental leaks that may occur in a free or in a congested environment, from a low or a high pressure tank, on a fuel cell vehicle. The leaks are assimilated to vertical turbulent and axisymmetric jets with variable density. They are issued from cylindrical orifices from 1 to 3 mm diameter. An experimental set-up was designed to investigate the leaks : hydrogen has been replaced by helium for safety reasons. It supports a 200 bar pressure and allows to position an obstacle in the jet flow. The BOS (Background Oriented Schlieren) technique has been adapted to millimeter jets and to the presence of an obstacle. Particular attention has been given to the development of this technique. The results show good agrement with the available litterature data.New similarity laws are proposed, more representative of the flows of : subsonic free jets, under-expanded free jets, and subsonic impinging (a sphere) jets. From the structure analysis of compressible under-expanded free jets, new relations are proposed to estimate the Mach disk position and diameter as well as the potential core length. Finally, two new laws are found from the analysis of flammable volume and flammable mass : they are based on the leak mass flow rate

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26

Cutler, Philip Robert Edward. "On the structure and mixing of a jet in crossflow : Ph.D. thesis." Title page, abstract and table of contents only, 2002. http://web4.library.adelaide.edu.au/theses/09PH/09phc9895.pdf.

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Caron, Sascha. "Jets in photoproduction at HERA." [S.l.] : [s.n.], 2002. http://deposit.ddb.de/cgi-bin/dokserv?idn=96548209X.

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Lai, Chung-kei Chris. "Mixing of inclined dense jets." Click to view the E-thesis via HKUTO, 2009. http://sunzi.lib.hku.hk/hkuto/record/B4423661X.

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29

Stuland, Eirik Martin. "Computation of impinging gas jets." Thesis, Norwegian University of Science and Technology, Department of Energy and Process Engineering, 2008. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-9716.

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Abstract This dissertation has been produced during the spring semester of 2008 to serve to the requirements for the degree of Master of Technology at the Norwegian University of Science and Technology (NTNU). The thesis has been written at the department of Energy and Process Engineering, with supervision of Professor Helge I. Andersson from the Fluid Dynamics department. The thesis has the title Computation of Impinging Gas Jets, and aims to investigate the Impinging Jet Flow (IJF) problem presented in section[2] by means of Computational Fluid Dynamics (CFD). For the work of this thesis the commercially available program package of FLUENT 6.3, and Gambit 2.4 was used for all the simulation and geometry generation tasks. The specific IJF case treated in the thesis work, is the Single Round Nozzle (SRN ) IJF geometry explained in section[2.2] , and displayed in Figure 2.2 . The numerical simulations were carried out by means of 2D and 3D Reynolds Averaged Navier Stokes ( RANS) simulations , and Large Eddy Simulation (LES) with related theory described in the theory section[3]. The work with the simulations of this thesis can roughly be divided into two main components. Firstly there is the part comprising all tasks and operations involved in creating and running the simulations, about which relevant information is provided in section[4]. Secondly, there is the work involving all the tasks related to gathering, interpreting, and analyzing the yielded simulation results. These tasks and their results are mainly treated in sections[5 to 9]. Both numerical and experimental reference IJF cases were used in this thesis work. The reference cases were at first used to guide the beginning of the simulation effort (Figure 6.1). In the later stages of the thesis, the reference results were used to analyze and interpret the results of the thesis simulations. Overall the results from the RANS simulations of this thesis, are found to give good agreement with the reference simulations and experiments, within the limits of what can be expected from the RNG k-ε model which was used. The LES simulations on the other hand, proves to be far more demanding both computation wise, and in relation to issues concerning simulation preparations and setup. In addition the LES simulation is found to be outperformed by the RANS simulations in some regions of the IJF geometry. When analyzed, it is found that this is probably caused by an unfortunate combination of regions with low local mesh quality, and a quite mesh sensitive feature in the Sub Grid Scale model. Nevertheless the LES simulation is found to provide results of good agreement with experimental data in some of the most difficult regions to simulate on the IJF geometry. In this region the LES simulation is also found to outperform the RANS simulations.

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30

Lekholm, Ville. "Schlieren imaging of microrocket jets." Thesis, Uppsala University, Ångström Space Technology Centre, ÅSTC, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-127219.

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In this report, microrockets from the company NanoSpace were studied using schlieren imaging techniques. The rocket chips are manufactured using MEMS technology, which requires compromises regarding the shape of the nozzle. The rocket chips are 22x22x0.85 mm, manufactured from laminated silicon. The nozzles are approximately 20 µm wide at the throat, and 350 µm wide at the exit. A semi in-line schlieren apparatus was designed, set up, and aligned. A small vacuum chamber was constructed, and a series of tests was conducted in order to qualitatively evaluate the consequences of these compromises, and other performance issues. It was found that the existing 1 kW quartz-tungsten-halogen lamp was sufficient as a light source, standard photographic equipment served well as an imaging device, and a 400 mm, f/7.9 achromatic doublet as schlieren lens, resolved enough detail in the exhaust gas to perform the studies. At maximum magnification, the viewing area was 7 by 4.5 mm, captured at 14 Mpixel, or about 1.5 µm/pixel. Several different rocket chips were studied, with helium, nitrogen and xenon as propellant gases. Feed pressure ranged from 0.5 bar to 3.5 bar, and the rockets were studied at atmospheric pressure and in vacuum, and with and without heaters activated. Through these studies, verification and visualization of the basic functionality of the rockets were possible. At atmospheric pressure, slipping of the exhaust was observed, due to the severe overexpansion of the nozzle. In vacuum, the nozzle was underexpanded, and the flow was seen to be supersonic. There was a measurable change in the exhaust with the heaters activated. It was also shown that the method can be used to detect leaks, which makes it a valuable aid in quality control of the components.

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31

Mazurek, Kerry Anne. "Scour of clay by jets." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/NQ60324.pdf.

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32

Zou, Yue. "Air jets in ventilation applications." Doctoral thesis, Stockholm, 2001. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3146.

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33

Brinkert, Jacob. "Particle jets in fluidised beds." Thesis, University of Cambridge, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.319390.

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34

Kurosoy, Ersel. "Opposed jets, flames and extinction." Thesis, Imperial College London, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.402177.

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35

Outten, Stephen. "Easterly Tip Jets Around Greenland." Thesis, University of East Anglia, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.514267.

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36

Hardcastle, M. J. "The jets in radio galaxies." Thesis, University of Cambridge, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.603680.

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I present high-resolution, high-sensitivity images of four FRI radio galaxies and seventeen FRII radio galaxies, made with the aim of detecting and imaging jets and counterjets. For the FRIs, I show images of the detailed total intensity and polarisation structure in the jets and counterjets and in the sources as a whole. I argue that models in which the jets are initially relativistic but decelerate are a good fit to the overall behaviour of the objects, but that some recent models of the polarisation structure are ruled out by the observations. The radio-optical spectrum of the jet in one object is discussed in some detail. For the seventeen FRIIs (part of a complete sample of 21 objects) I detect new jets or possible jets in a number of objects; there are jets or probable jets in 76% of the sample as a whole. The properties of the hot spots of the objects and their implications for models of radio sources are discussed. I use my observations, together with data from previous work, to define an unbiased sample of 50 radio galaxies, and measure quantities of interest from the maps available to me. Trends in this sample are discussed and compared with those seen in samples of other classes of object. Using Monte Carlo simulation, I show that the prominences and sidednesses of jets in the sample are consistent with relativistic beaming models, and constrain the velocities required and the efficiency of a typical beam.

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37

Lai, Chung-kei Chris, and 黎頌基. "Mixing of inclined dense jets." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2009. http://hub.hku.hk/bib/B4423661X.

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38

Baker, Laura. "Sting jets in extratropical cyclones." Thesis, University of Reading, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.541952.

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39

Ho, Y. K. "Supersonic and subsonic radial jets." Thesis, University of Manchester, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.378306.

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40

Cox, Christopher Ian. "Numerical simulations of astrophysical jets." Thesis, University of Cambridge, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.335736.

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41

Kuo, Chih-yu. "The acoustics of impinging jets." Thesis, University of Cambridge, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.624916.

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42

Bence, Stephen John. "Stellar jets and molecular outflows." Thesis, University of Cambridge, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.627089.

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43

Liamini, Mokhtar. "Étude des jets supersoniques impactants." Mémoire, Université de Sherbrooke, 2005. http://savoirs.usherbrooke.ca/handle/11143/1289.

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Un large éventail d'applications industrielles fait appel aux jets supersoniques impactants. Notamment leur utilisation pour la manutention sans contact des objets de faible masse. Il s'avère donc nécessaire de pouvoir prédire les profils de pression et de température que crée un jet supersonique sous-détendu sur l'objet impacté ainsi que de démonter les phénomènes qui gouvernent l'écoulement. Dans une étude ultérieure menée par J.-M. Papillon et commanditée conjointement par l'Université de Sherbrooke et IBM, un banc d'essai de jets supersoniques sous-détendus impactants a été réalisé. Ce banc d'essai permet d'abord de faire jaillir un jet supersonique sous-détendu sur un disque plan constituant la surface inférieure d'un diffuseur radial, puis d'en mesurer les pressions et les températures surfaciques. Notre étude s'inscrit ainsi dans la continuité de celle qui est décrite plus haut. Elle consiste à reprendre en main le banc d'essai pour reproduire, valider et approfondir l'étude expérimentale. Afin d'atteindre une meilleure appréciation quantitative des champs de pression et de température, une modélisation numérique est également effectuée dans chaque cas investigué. Le modèle mathématique utilisé tient compte de la compressibilité du fluide et des effets de la turbulence et repose sur les équations de conservation de la masse, de la quantité de mouvement et de l'énergie. Des améliorations sont apportées également au montage dans le but de mesurer les pressions et températures sur la surface de la buse. La confrontation des résultats obtenus par les essais expérimentaux à la modélisation numérique permet ainsi une compréhension approfondie des phénomènes en jeu.

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44

Craske, John. "Unsteady turbulent jets and plumes." Thesis, Imperial College London, 2015. http://hdl.handle.net/10044/1/44208.

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This thesis investigates the physics of statistically unsteady axisymmetric turbulent jets and plumes using theory and direct numerical simulation. The focus is on understanding and modelling the physics that govern the behaviour of radially integrated quantities, such as the integral scalar flux, momentum flux and buoyancy flux. To this end, a framework is developed that generalises previous approaches, making no assumption about the longitudinal velocity profile, turbulence transport or pressure. The framework is used to develop well-posed integral models that exhibit a good agreement with simulation data. In the case of passive scalar transport, shear-flow dispersion is observed to be dominant in comparison with longitudinal turbulent mixing. A dispersion closure for free-shear flows based on the classical work of Taylor (Proc. R. Soc. Lond. A, vol. 219 1954b, pp. 186-203) is therefore developed. In the analysis of jets whose source momentum flux undergoes an instantaneous step change, it is demonstrated that a momentum-energy framework, of the kind used by Priestley & Ball (Q. J. R. Meteorol. Soc., vol. 81 1955, pp. 144-157), is the natural choice for unsteady free-shear flows. The framework is used to demonstrate why existing top-hat models of unsteady jets and plumes are ill-posed and that jets and plumes with Gaussian velocity profiles remain approximately straight-sided and are insensitive to source perturbations. Contrary to the view that the unsteady jet and plume equations are parabolic, it is shown that the generalised system of equations is hyperbolic. In unsteady plumes, the relative orientation of three independent families of characteristic curves determines whether propagating waves are lazy, forced or pure. To relate findings that are based on the momentum-energy framework to the classical mass-momentum framework, an unsteady entrainment coefficient is defined that generalises the decomposition proposed by Kaminski et al. (2005, J. Fluid Mech., vol. 526, pp. 361-376).

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45

Sol, Hélène. "Jets et sources radio extragalactiques." Paris 7, 1987. http://www.theses.fr/1987PA077163.

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Travaux sur les proprietes radiatives et dynamiques des jets associes a des galaxies ou a des quasars. L'etude du jet optique de la galaxie active pks 0521-36 est abordee en detail. On decrit ensuite le passage d'un jet vlbi de quelques pc a un jet observe a grande echelle sur plusieurs dizaines de kpc. On traite, sur ce sujet, des mecanismes physiques qui entrent en jeu pour interpreter ce phenomene. En derniere partie on pose le probleme de la determination de la constante de hubble en termes de mirages gravitationnels et celui des jets d'echelle stellaire

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46

Tambe, Samir B. "Liquid Jets in Subsonic Crossflow." University of Cincinnati / OhioLINK, 2004. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1100876702.

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47

Kouklík, Michal. "Zhodnocení investičního záměru dostavby JETE." Master's thesis, Vysoká škola ekonomická v Praze, 2013. http://www.nusl.cz/ntk/nusl-199563.

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The thesis deals with the project of the construction of the Temelin Nuclear Power Plant, as an optimal new production source of electrical energy to ensure the majority of the coverage of the growing electric consumption in the Czech Republic and to ensure the state energy independence in the future. The main part of the thesis is dedicated to the methods of strategic investments evaluation. Emphasis is placed on the dynamic methods, which are also working with the factors of time and risk, which are relevant in this case, because the project time horizon is 70 years. The investment project is evaluated from the perspective of owners, as well as from the overall perspective of owners and creditors. The Monte-Carlo method was implemented into the model to support the decision-making process and to move closer to reality. The method assigns the relevant distribution division to the model input values. The output is the set of available values, and the probability of their occurrence. The main thesis objective lies in the decision of the decision maker with a neutral attitude to risk, whether accept the investment or not.

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48

Goodson, Anthony P. "The formation of stellar jets /." Thesis, Connect to this title online; UW restricted, 1998. http://hdl.handle.net/1773/9793.

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49

Liamini, Mokhtar. "Étude des jets supersoniques impactants." [S.l. : s.n.], 2005.

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50

Sol, Hélène. "Jets et sources radio extragalactiques." Grenoble 2 : ANRT, 1987. http://catalogue.bnf.fr/ark:/12148/cb37609992h.

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