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Bylund, Mats. "Matematiska biljarder och KAM teori." Thesis, KTH, Matematik (Inst.), 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-147665.
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En matematisk biljard är en idealisering av det fysiska spelet vari man betraktar kollisionerna av en punktmassa i rörelse innanför ett slutet område. Studiet av matematiska biljarder motiveras delvis av mekaniska samt optiska system men det ges även exempel på rent matematiska sådana. Denna något lekfulla inkörsport till det generellare studiet av dynamiska system visar sig vara en slagkraftig sådan, och rapporten tar upp några viktiga begrepp inom studiet av matematiska biljarder såsom biljardavbildingen samt kaustikor. Denna rapport ämnar även tillhandage en kort introduktion till KAM teori, en teori först introducerad av Andrej Kolmogorov för att delvis lösa problem inom celest mekanik. Det bevisas två satser inom denna teori, båda starkt beroende av tidigare resultat i rapporten samt av det som introduceras som det diofantiska villkoret.A mathematical billiard is an idealization of the real, physical, game where one studies the collisions of a point mass within a closed area. The study of mathematical billiards is partly motivated by both mechanical and optical systems, but also by pure mathematical ones. This approach to the more general study of dynamical systems is not to be dismissed by its playfulness, and this report highlights some important concepts of mathematical billiards such as the billiard map and the notion of a caustic. Moreover, the aim of this rapport is also to give a short introduction to KAM theory; a theory first developed by Andrej Kolmogorov to partly solve problems in celestial mechanics. This rapport proves two KAM theorems, both heavily dependent on previews results in the rapport and also on, what will be introduced as, the Diophantine condition.
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Frögéli, Ylva. "Västergarns kammar : en fallstudie av Västergarnskammarna från seminariegrävningarna mellan åren 2006-2010." Thesis, Högskolan på Gotland, Institutionen för kultur, energi och miljö, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:hgo:diva-1235.
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During the years 2006-2010 Gotland University conducted seminars excavations in Västergarn parish on Gotland. Inside the wall a total of six house foundations have been found and a total of 127 combs have been registered. This thesis is based on a material study of the 127 registered medieval combs. The purpose of this thesis is to analyze the combs and with their chronology illuminate in which period the society of Västergarn was active. And also to find out what the material remains can tell us about the place and its people. The questions concern the dating and chronology of the combs, and also how analyzing the combs can provide additional information to Västergarn. The method used is a comparative material - and literature study. The result of the analyze is that the combs are from the transitional period of the Viking - Medieval age, 900- 1100th century. A variety of nine different types could be distinguished. I believe that through an osteological –, and contextual spatial analysis and a comparative material study of the combs more information on the site can be presented.
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Cheung, Wai-chuen. "Application of the Prince's idea : conservation of Kam Tin /." [Hong Kong] : University of Hong Kong, 1993. http://sunzi.lib.hku.hk/hkuto/record.jsp?B13781315.
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Natås, Vidar. "Modelleringsmetodikk for kontaktanalyse av settherdet kam." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for produktutvikling og materialer, 2013. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-22403.
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SamandragEin settherda kam har blitt undersøkt med tanke på kontaktutmatting. Metodane som er nytta byggjer på kjente utmattingsteoriar, som anten er utvikla for å dekkje fenomenet kontaktutmatting, eller som er laga for spenningstilfeller som blant anna femner om kontaktspenningar. Resultata frå berekningane er blitt samanlikna med materialdata frå ein settherda kam, som vart målt i forprosjektet ?Analyse av overflateherda kammar?. Målsetjinga har vore å finne ut om kontaktutmatting vil oppstå, og eventuelt kor i komponenten det vil skje. Dette er viktig informasjon som kan brukast til anten å bekrefta at herdinga er god nok, eller vita korleis herdinga bør endrast. Det finnest fire formar for skade, som alle fell inn under definisjonen kontaktutmatting. Dei er kjenneteikna av ein karakteristisk djupn under overflata, der dei vil oppstå. Underherdesjiktutmatting, som oppstår i overgangen mellom herdesjikt og kjerne, vil ikkje oppstå. I kammen som er undersøkt er denne overgangen 4 mm under overflata, og der er sikkerhetsfaktoren mot utmatting høg. Makrogropdanning initiert under overflata vil derimot kunne oppstå. Det kritiske området for denne forma for utmatting er om lag 0,5 mm under overflata. Berekningane visar at dette er eit kritisk område. Dei to siste formane for kontaktutmatting er mikrogropdanning, og makrogropdanning initiert i overflata. Om desse formane vil oppstå er uvisst, då mange faktorar som har innverknad på dei ikkje er tatt i betraktning. Eit kritisk område er lokalisert. Det er likevel usikkert kva for endringar som er naudsynt å gjere. Det er fordi posisjonen nødvendigvis ikkje treng være så kritisk, då ein konservativ antaking om defektstørrelsar er brukt i berekningane. Difor kan god tilverkingskontroll, som reduserar faren for store defektar i materialet, være tilstrekkeleg.  
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Wallez, Thomas. "Invariants iso-spectraux et théorèmes KAM." Thesis, Nantes, 2018. http://www.theses.fr/2018NANT4067/document.
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L’objectif de ce travail est d’établir des résultats de rigidité spectrale pour des familles C1 d’opérateurs (pseudo-)différentiels elliptiques auto-adjoints Pt, t ϵ [0, ẟ] sur une variété lisse compacte M sans bord de dimension n ≥ 2. Dans les deux premiers chapitres, on étudie des hamiltoniens proches d’un hamiltonien intégrable qui est non dégénéré au sens de Kolmogorov (Système KAM). On y construit une forme normale de Birkhoff au voisinage de chaque tore KAM ayant une fréquence diophantienne. Dans les chapitres 3 et 4 on établit une forme normale de Birkfoff quantique afin de construire des familles C1 de quasi-modes. Ces dernières permettent de relier les propriétés spectrales de Pt aux propriétés dynamiques des tores KAM. Les deux derniers chapitres proposent des applications en lien avec la transformée de Radon ainsi qu’une étude sur les surfaces de rotationThe aim of this work is to obtain spectral rigidity results for C1 families of elliptic self-adjoint (pseudo-)differential operators Pt, t ϵ [0, ẟ], on a smooth closed manifold M of dimension n ≥ 2. In the first two chapters, we investigate Hamiltonians close to a given integrable Hamiltonian which is non-degenerate in the sense of Kolmogorov (KAM system). This allows us to obtain a Birkhoff normal form in a neighborhood of any KAM tori with a Diophantine frequency. In the third and fourth chapters, we construct a quantum Birkhoff normal form and obtain C1 families of quasimodes. Using the quasi-modes, we establish a connection between the spectral properties of Pt and the dynamical properties of the KAM tori. The last two chapters provide applications of these results to the Radon transform and the surfaces of revolution
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Hägg, Jennifer. "Eliminering av rost på kam- och vevaxel." Thesis, KTH, Industriell produktion, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-57982.
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Detta kandidatexamensarbete gjordes mot bakgrund av rostangreppen på kam- och vevaxlar somägde rum sommaren 2010 på Scanias motorverkstad. Rosten på axlarna ledde till att ett stortantal axlar skrotades eller ompolerades, vilket kostade stora summor. Målet var att skapa rutineroch ta fram åtgärdsförslag för att reducera eller helst eliminera rostangreppen inför sommaren2011. De frågor som ställdes var: Vilken/vilka var grundorsakerna till rostangreppen semestern 2010 på kamaxlarna? Vilken/vilka var grundorsakerna till rostangreppen semestern 2010 på vevaxlarna? Används idag en korrekt process vid bearbetning av axlar (typ av tvättmedel,koncentration, fukt på axlar mm)? Hur ska axlar som ska stå i buffert under kommande semesterperioder hanteras? För att svara på de första två frågorna gjordes en processtudie, där slutstegen i kam- ochvevaxelprocesserna studerades. Därtill intervjuades produktionsledare, tekniker och operatörerpå de båda linerna. Tester gjordes också för att undersöka olika orsaker till rost.För att ta reda på om processerna för axlarna var korrekta konsulterades leverantörer avrostskyddande material och tvättmedel. Dessutom intervjuades verkstadens kunniga inomtvättmedel och förpackningar. På så sätt kunde en jämförelse mellan vad som gjordes och vadsom borde göras genomföras.Den sista frågan besvarades genom att ta fram förbättringsförslag och rutiner för de övrigafrågeställningarna. Förbättringsförslag och rutiner gällde främst tvättmaskiner, slutkontroll ochpaketering.De möjliga orsaker till rost som uppkom var tvättmedlets egenskaper, maskinernas ineffektiviteti tvättning, torkning och kylning samt att paketeringen och slutkontrollen inte skedde som denskulle. För att åtgärda dessa saker skapades en lista med konkreta förbättringsförslag och rutinerför slutkontroll och paketering. En lista med fortsatta studier skapades också för att peka påområden där tillräckliga undersökningar ej gjorts under examensarbetet.This bachelor thesis was done in view of corrosion on camshaft and crankshaft at Scania's engine shop, which took place during the summer 2010. The goal was to create routines anddevelop proposals for measures to reduce or eliminate rust attacks for summer 2011. Thequestions asked were: Which were the root causes of corrosion during summer vacation 2010 on camshafts? Which were the root causes of corrosion during summer vacation 2010 on crankshafts? Is a proper process in use today, when machining shafts, in regard to washing andpacking? How should shafts be treated, which will be in a buffer during summer vacations? To be able to answer the first two questions a process study was made, with focus on the finalsteps of production for cam- and crankshafts. In addition production managers, technicians andoperators on both lines were interviewed and tests were made to investigate the different causesof corrosion.To get an answer whether the processes for the shafts were correct, suppliers of corrosionpreventive material and detergent were consulted. The workshops own experts in detergent andpackaging were consulted. In that way a comparison between what was done and what should bedone could be made. The last question was answered by develop proposals and routines for the other questions asked.These proposals and routines focused on washing machines, final inspection and packaging. The possible cases of corrosion that occurred were the detergents characteristics, the washingmachines ineffectiveness in washing, drying and cooling and that the final control and packaging wasn't conducted properly. To correct these things, a list with concrete proposals forimprovement was made. A list with further studies was created to point out areas where adequatestudies hadn't been done within this thesis.
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Pageault, Pierre. "Fonctions de Lyapunov : une approche KAM faible." Phd thesis, Ecole normale supérieure de lyon - ENS LYON, 2011. http://tel.archives-ouvertes.fr/tel-00678325.
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Cette thèse est divisée en trois parties. Dans une première partie, on donne une description nouvelle des points récurrents par chaînes d'un système dynamique comme ensemble d'Aubry projeté d'une barrière ultramétrique. Cette approche permet de munir l'ensemble des composantes transitives par chaînes d'une structure d'espace ultramétrique expliquant leur topologie totalement discontinue, et de retrouver un théorème célèbre de Charles Conley concernant l'existence de fonctions de Lyapunov décroissant strictement le long des orbites non-récurrentes par chaînes. Dans une deuxième partie, on développe une théorie d'Aubry-Mather pour les homéomorphismes d'un espace métrique compact. On introduit dans ce cadre un ensemble d'Aubry métrique, puis topologique, ainsi qu'un ensemble de Mañé. Ces notions, plus fines que la récurrence par chaînes, permettent de mieux comprendre les fonctions de Lyapunov d'un tel système dynamique. Dans une dernière partie, on montre un résultat général de densité de certains contre-exemples au théorème de Sard pour lesquels l'ensemble des points critiques est un arc topologique et on donne des applications dynamiques de ce résultat. Celles-ci sont liées à des problèmes d'unicité, à constantes près, des solutions KAM faibles (ou solutions de viscosité) de certaines équations d'Hamilton-Jacobi.
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Govin, Mike. "Méthodes KAM en mécanique quantique et classique." Dijon, 1997. http://www.theses.fr/1997DIJOS020.
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Dans la première partie nous avons appliqué des itérations KAM quantiques à des matrices réelles symétriques de dimension finie. Nous avons montré numériquement que la méthode KAM converge pour presque toutes les valeurs du paramètre de perturbation à l'exception d'un ensemble de Julia de mesure nulle. Cet ensemble de Julia est dû à la compétition entre différents points fixes. La localisation de cet ensemble de Julia est reliée aux presque-croisements dans le spectre du Hamiltonien mais dépend de la transformation unitaire choisie. Dans la seconde partie nous avons développé une iteration KAM classique en représentation de Lie. La rapidité de l'algorithme numérique de la transformation de Lie permet de prendre un grand nombre de coefficients de Fourier pour représenter le Hamiltonien. Nous avons applique cette itération KAM à un Hamiltonien à deux degrés de liberté quadratique dans les variables action et nous nous sommes intéressés au tore invariant ayant pour fréquence le nombre d'or. Nous avons montré numériquement que pour ce modèle l'itération KAM converge jusqu'à la perturbation critique pour laquelle le tore invariant étudié se brise. Nous avons ensuite développé une transformation de renormalisation. La renormalisation permet d'obtenir une valeur précise de la perturbation critique avec un petit nombre de coefficients de Fourier. Nous avons trouvé un point fixe quadratique réel non trivial avec une structure auto-similaire situe sur une surface critique et nous avons déterminé un exposant critique caractérisant ce point fixe.
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Steinbrenner, Kathrin. "Schwedens erste EU-Ratspräsidentschaft : kam Europa nach Schweden? /." Berlin : Weissensee-Verl, 2007. http://d-nb.info/986482102/04.
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Mandorino, Vito. "Théorie KAM faible et instabilité pour familles d'hamiltoniens." Phd thesis, Université Paris Dauphine - Paris IX, 2013. http://tel.archives-ouvertes.fr/tel-00867687.
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Dans cette thèse nous étudions la dynamique engendrée par une famille de flots Hamiltoniens. Un tel système dynamique à plusieurs générateurs est aussi appelé 'polysystème'. Motivés par des questions liées au phénomène de la diffusion d'Arnold, notre objectif est de construire des trajectoires du polysystème qui relient deux régions lointaines de l'espace des phases. La thèse est divisée en trois parties.Dans la première partie, nous considérons le polysystème engendré par les flots discrétisés d'une famille d'Hamiltoniens Tonelli. En utilisant une approche variationnelle issue de la théorie KAM faible, nous donnons des conditions suffisantes pour l'existence des trajectoires souhaitées.Dans la deuxième partie, nous traitons le cas d'un polysystème engendré par un couple de flots Hamiltoniens à temps continu, dont l'étude rentre dans le cadre de la théorie géométrique du contrôle. Dans ce contexte, nous montrons dans certains cas la transitivité d'un polysystème générique, à l'aide du théorème de transversalité de Thom.La dernière partie de la thèse est dédiée à obtenir une nouvelle version du théorème de transversalité de Thom s'exprimant en termes d'ensembles rectifiables de codimension positive. Dans cette partie il n'est pas question de polysystèmes, ni d'Hamiltoniens. Néanmoins, les résultats obtenus ici sont utilisés dans la deuxième partie de la thèse
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FERRAZ, Maysa Motta. "O Método KAM Aplicado à Hamiltoniana de Floquet." reponame:Repositório Institucional da UNIFEI, 2012. http://repositorio.unifei.edu.br/xmlui/handle/123456789/1248.
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Submitted by repositorio repositorio (repositorio@unifei.edu.br) on 2018-05-11T18:32:03Z
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dissertacao_0039014.pdf: 480596 bytes, checksum: 6c08c1136f53aff2e3ffb580d3742ccf (MD5)Made available in DSpace on 2018-05-11T18:32:03Z (GMT). No. of bitstreams: 1 dissertacao_0039014.pdf: 480596 bytes, checksum: 6c08c1136f53aff2e3ffb580d3742ccf (MD5) Previous issue date: 2012-03-30
O objetivo desta dissertação é entender como a técnica KAM é utilizada para estudar o espectro da Hamiltoniana de Floquet K = - i d/dt + Ho + V (ωt), em que Ho é um operador auto-adjunto com espectro discreto e t ⟼ V (t) é uma função de período 2π com valores no espaço dos operadores auto-adjuntos limitados. Em particular, descrevemos a ideia básica do algoritmo tipo KAM que consiste de um procedimento iterativo que resulta na diagonalização da Hamiltoniana de Floquet K.
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Wong, Wing-sze, and 黃穎詩. "Water chemistry in the Kam Tin basin, natural and authropogenic influences." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2007. http://hub.hku.hk/bib/B38605843.
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Ponce, Mario. "Courbes invariantes pour les dynamiques holomorphes fibrées." Paris 11, 2007. http://www.theses.fr/2007PA112066.
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Une transformation holomorphe fibrée (DHF) est une fonction fibrée continue de la forme (\theta,z)\to(\theta+\alpha,f_{\theta}(z)), définie dans un produit T^{1}\times U, où \subset C est un ouvert, \alpha est un nombre irrationnel et _{\theta} est une fonction univalente pour tout \theta \in T^{1}. Nous nous concentrons dans l'étude des courbes invariantes. Ces objets jouent le rôle d'un centre pour la dynamique locale de telles transformations. Ce travail est divisé en deux parties. La première contient une étude de la dynamique locale d'une DHF autour d'une courbe invariante. Nous montrons que cette dynamique est contrôlée par certaines données associées à la courbe. Plus précisement, dans le chapitre 2 nous montrons que les courbes attractives sont linéarisables; l'équivalence entre la stabilité de Lyapounov et la linéarisation dans le cas indifférent; un théorème de linéarisation de Siegel fibré; et une version fibrée du théorème des hérissons de Pérez-Marco. La deuxieme partie contient les résultats majeurs de ce travail. Dans cette partie nous nous concentrons sur la persistance d'une courbe invariante sous des petites perturbations. Au chapitre 3 nous montrons la persistance d'une courbe non-indifférente. Aux chapitres 4 et 5 nous traitons la persistance d'une courbe indifférente de degré nul avec un nombre de rotation transversal donné. Au chapitre 4 nous montrons que dans la classe C^{\infty}, la persistance a lieu pourvu que la paire de nombres de rotation associée vérifie une condition arithmétique de type diophantienne. Nous montrons aussi que cette condition est optimale. Au chapitre 5 nous montrons que dans la classe analytique, la persistance a lieu pourvu que la paire de nombres de rotation associée vérifie une condition arithmétique à la BrjunoA fibered holomorphic transformation (FHD) is a fibered continuous function (\theta,z)\to (\theta+\alpha,f_{\theta}(z)), defined in a product T^{1}\times U, where U\subset C is an open set, \alpha is an irrational number and f_{\theta} is a univalent function for every \theta\in T^{1}. We focus on the study of invariant curves. These objects play the role of a center for local dynamics. This work has two main parts. The first part contains a study of the local dynamics around an invariant curve. We show that this dynamics is controlled by some infinitesimal data associated to the curve (multiplier and fibered rotation number). Indeed, in chapter 2 we prove that non-indifferent invariant curves are linearizable; the equivalence between Lyapunov stability and linearization in the indifferent case; a Siegel linearization theorem for the fibered case; and a fibered version of the P\'erez-Marco hedgehogs theorem. The second part contains the main results of this work. In this part we focus on persistence of an invariant curve under small perturbations. In chapter 3 we prove the persistence of non-indifferent curves. In chapter 4 and 5 we treat persistence of indifferent, zero degree invariant curves, with a given fibered rotation number. In chapter 4 we prove that in the C^{\infty} class persistence of the curve occurs provided that the pair of rotation numbers verifies a diophantine-like arithmetical condition. We also show that this condition is optimal. In chapter 5 we prove that in the analytical class persistence of the curve occurs provided that the pair of rotation numbers verifies a Brjuno-like arithmetical condition. We also show a parametrized version of the main theorem
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Masoero, Marco. "On the long time behavior of potential MFG." Thesis, Paris Sciences et Lettres (ComUE), 2019. http://www.theses.fr/2019PSLED057.
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Cette thèse porte sur l’étude du comportement en temps long des jeux à champ moyen (MFG) potentiels, indépendamment de la convexité du problème de minimisation associé. Pour le système hamiltonien de dimension finie, des problèmes de même nature ont été traités par la théorie KAM faible. Nous transposons de nombreux résultats de cette théorie dans le contexte des jeux à champ moyen potentiels. Tout d'abord, nous caractérisons par approximation ergodique la valeur limite associée aux systèmes MFG à horizon fini. Nous fournissons des exemples explicites dans lesquels cette valeur est strictement supérieure au niveau d’énergie des solutions stationnaires du système MFG ergodique. Cela implique que les trajectoires optimales des systèmes MFG à horizon fini ne peuvent pas converger vers des configurations stationnaires. Ensuite, nous prouvons la convergence du problème de minimisation associé à MFG à horizon fini vers une solution de l’équation Hamilton-Jacobi critique dans l’espace de mesures de probabilité. De plus, nous montrons une limite de champ moyen pour la constante ergodique associée à l’équation Hamilton-Jacobi de dimension finie correspondante. Dans la dernière partie, nous caractérisons la limite du problème de minimisation à horizon infini que nous avons utilisé pour l'approximation ergodique dans la première partie du manuscritThe purpose of this thesis is to shed some light on the long time behavior of potential Mean Field Games (MFG), regardless of the convexity of the minimization problem associated. For finite dimensional Hamiltonian systems, problems of the same nature have been addressed through the so-called weak KAM theory. We transpose many results of this theory in the infinite dimensional context of potential MFG. First, we characterize through an ergodic approximation the limit value associated to time dependent MFG systems. We provide explicit examples where this value is strictly greater than the energy level of stationary solutions of the ergodic MFG system. This implies that optimal trajectories of time dependent MFG systems cannot converge to stationary configurations. Then, we prove the convergence of the minimization problem associated to time dependent MFGs to a solution of the critical Hamilton-Jacobi equation in the space of probability measures. In addition, we show a mean field limit for the ergodic constant associated with the corresponding finite dimensional Hamilton-Jacobi equation. In the last part we characterize the limit of the infinite horizon discounted minimization problem that we use for the ergodic approximation in the first part of the manuscript
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Cheung, Wai-chuen, and 張偉傳. "Application of the Prince's idea: conservation of Kam Tin." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1993. http://hub.hku.hk/bib/B31258554.
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Zavidovique, Maxime. "Modèle discret et intégrales premières en théorie KAM faible." Lyon, Ecole normale supérieure, 2010. http://www.theses.fr/2010ENSL0591.
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Dans cette thèse, nous nous intéressons à deux problèmes concernant le semi-groupe de Lax-Oleinik et étudions leurs conséquences en théorie KAM faible. Le premier concerne des généralisations des théories d'Aubry-Mather et KAM faible de Fathi suite à une discrétisation en temps par rapport au modèle classique Hamiltonien. Ceci est traité en deux temps. Dans un premier temps, nous introduisons dans un cadre assez général d'espaces métriques, les outils de théorie KAM faible. On montre que les sous-solutions critiques peuvent ne pas être continue et on étudie leurs discontinuités à l'aide du potentiel de Mañé. On construit aussi des sous-solutions strictes continues. Dans une seconde partie, en se plaçant dans un cadre plus régulier, on construit des sous-solutions C^{1,1}. Le second problème traite, dans le cadre Hamiltonien Tonelli classique, des relations entre semi-groupes de Lax-Oleinik, théorie d'Aubry-Mather et théorie KAM faible pour des Hamiltoniens qui commutent au sens de PoissonIn this thesis, we were interested in two problems concerning the Lax-Oleinik semi-group and studied their implications in weak KAM theory. The first one is concerned with generalizations of the Aubry-Mather and weak KAM theories under a time discretization regarding the classical Hamiltonian model. This is done in two parts. First, we introduce in a fairly general framework of metric spaces the tools of weak KAM theory. We show the critical sub-solutions may fail to be continuous and study their discontinuities thanks to the Mañé potential. We also construct continuous strict sub-solutions. In a second part, we construct, in a more regular framework, C^{1,1} sub-solutions. The second problem deals with relationships between the Lax-Oleinik semi-groups, the Aubry-Mather and weak KAM theories for Poisson-commuting Hamiltonians in the classical Tonelli Hamiltonian setting
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Holmgren, Adina, and Elin Hellström. "Cancerdiagnostiserade patienters erfarenheter av Komplementär och Alternativ Medicin (KAM). : En beskrivande litteraturstudie." Thesis, Högskolan i Gävle, Avdelningen för vårdvetenskap, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-30983.
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Bakgrund: Komplementär och alternativ medicin (KAM) är ett samlingsnamn som innefattar en annan typ av medicin och behandling än den konventionella behandlingen. KAM baseras på en helhetssyn av människan där man anser att både kropp och själ är en helhet och detta grundas på den holistiska synen. Patienter som har diagnostiserats med cancer söker ofta hopp och botemedel för sin sjukdom. Vissa för att bli botade, andra för att förlänga livet samt förbättra sitt psykiska och fysiska välbefinnande. Via egenvård söker patienten sig till KAM för att finna metoder som antingen ett komplement eller alternativ till den konventionella behandlingen. Syfte: Att beskriva cancerdiagnostiserade patienters erfarenheter av Komplementär och Alternativ Medicin (KAM). Metod: Litteraturstudie av en beskrivande design som omfattar totalt 12 artiklar varav alla är med kvalitativ ansats. Sökningarna genomfördes i PubMed och Cinahl. Huvudresultat: Patienter som diagnostiserats med cancer sökte sig ofta till KAM i hopp om att hitta en metod som kunde förlänga livet eller få dem att må bättre, till exempel lindra symtom. Upplevelserna och erfarenheterna av KAM-metoderna var till största del positiva där patienterna blivit hjälpta med både fysiska och psykiska besvär. Det framkom att vårdpersonalens bemötande gällande KAM var bristfällig och det berodde på bristande intresse och kunskap. Slutsats: Patienter uppger att erfarenheterna av KAM-användandet överlag är positiva där känslan av kontroll och självbestämmande ökar. Det framgår dock att patienter upplever ett bristande stöd från vårdpersonalen inom den konventionella sjukvården, till exempel när de vill diskutera KAM. Detta visar sig genom ett ointresse och en bristande kunskap om metoderna.Background: Complementary and alternative medicine (CAM) encompasses medical products and practices that are not a part of conventional treatment. CAM is based on a comprehensive view of the human and a holistic health. CAM treats everything - mind, body, spirit and beyond. Patients with cancer searching for hope and cure for their disease, some to be cured and some to live longer and improve their mental and physical well-being. Through self-care, the patient searches for CAM to find methods that are either a complement or alternative to the conventional treatment. Aim: To describe patients with cancer experiences of complementary and alternative medicine (CAM). Method: Descriptive literature study with 12 included articles, all the included articles was qualitative. Data collection has been conducted via Cinahl and PubMed Main result: Patients with cancer do often search for CAM to find a method that could extending life or make them feel better, for example relieve symptoms. The experience of the CAM-methods was mostly positive, the patients were helped with both physical and mental disorders. It turned out that healthcare workers attitude towards CAM was defective because of the lack of interest and knowledge. Conclusion: Most of the patients reported positive experiences of CAM. Their sense of control and self-determination were higher than before the CAM-use. However, it appears that the patients experience a lack of support from the caregivers in the conventional medicine/healthcare when they, for an example, want to discuss CAM. It shows through a non-interest and a lack of knowledge of the methods.
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Källman, Mikael, and Marie Nordfeldt. "Patienters erfarenheter av Komplementär ochAlternativ Medicin (KAM) vid cancersjukdom : En litteraturstudie." Thesis, Högskolan Dalarna, Omvårdnad, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:du-25803.
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Bakgrund: Cancer är en sjukdom som väcker rädslor och behandlingen kan ge svåra symtom och vara slitsam för patienten. Under den medicinska behandlingen av cancer kan patienter söka sig till komplementära och alternativa behandlingar vilket kan öka risken för interaktioner med mediciner. Syfte: Var att beskriva vuxna patienters erfarenheter av komplementär och alternativ medicin (KAM) vid cancersjukdom. Metod: Beskrivande systematisk litteraturstudie med 16 inkluderade artiklar som sökts via CINHAL och PubMed. Resultatet har bearbetats enligt innehållsanalys. Resultat: Patienternas användande av KAM gav dem en känsla av att ta ansvar och kontroll i en svår tid, minskade biverkningar av behandlingen samt stärkte sin egen kropp. Information om KAM-behandlingar inhämtades främst via anhöriga och andras positiva erfarenheter. Det framkom att vårdpersonalen inte prioriterade frågor om KAM och att ämnet ofta hamnade i skymundan samt att den sjuke inte ville ta personalens tid i anspråk för att diskutera KAM. Om vårdpersonalen var negativ till deras KAM-användande uppgav de att de inte kände sig respekterad. Kontakten med KAM-terapeuten var oftast positiv i att de kände sig sedda, att de fick egen tid och blev lyssnad på. Konklusion: Viktiga erfarenheter som patienter rapporterar kring sitt användande av KAM var behovet av att ta kontroll över sitt mående, stärka sin kropp, få stöd i sin situation, att få tid med sin vårdgivare samt att få ett gott bemötande.Background: Cancer is a disease that causes fears and its treatment can cause severe symptoms and be strenuous for the patient. During the medical treatment of cancer, patients may seek complementary and alternative treatments, which could increase the risk of drug interactions. Aim: To describe adult patients' experience of complementary and alternative medicine (CAM) in cancer disease. Methods: Descriptive systematic literature study with 16 included articles searched through CINHAL and PubMed. The result has been analyzed according to content analysis Findings: Patients' use of CAM gave them a sense of taking responsibility and control in a difficult time, reducing side effects of treatment and strengthening their own body. Information about CAM treatments were obtained primarily through relatives and others' positive experiences. It emerged that healthcare workers do not prioritize issues about CAM, the patient felt neglected, and that the sick does not want to take the staff's time to discuss CAM. If the healthcare staff were negative to their CAM use, they stated that they did not feel respected. The contact with the CAM therapists were usually positive because they felt looked after, that they had their own time and were listened to. Conclusion: Important experiences that patients report about their use of CAM are the need to take control over their health, strength their body, to get support in their situation, to have time with their health care provider and to receive a good treatment.
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Villumsen, Erika, and Jennifer Laurits. "In search for the perfect KAM manager : Exploring both the buyer´s and the supplier’s view of valued personality traits in a KAM manager." Thesis, Jönköping University, Internationella Handelshögskolan, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-52981.
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Background: KAM has received a lot of attention over the last decade, where organizations acknowledge the benefits, and choose to implement KAM programs within their companies. Research shows that the individual in a KAM manager role has a huge impact on the outcomes of KAM, crucially responsible for the relationships with the key accounts. Furthermore, there is a clear link between the selection of the right candidate in order to succeed with KAM, and the personality traits of a KAM manager. Problem: Limited research has been carried out on the personality traits of KAM managers connected to the FFM, yet scholars indicate that the individual has a large effect on the outcomes of KAM. Also, few researchers study both the buyer´s and the supplier's side within KAM relationships, even though mutual benefits are an essential part of KAM. Purpose: The purpose of the study is to identify if there is an existing mutual understanding between the buyer and supplier regarding valuable traits of a KAM manager to benefit KAM outcomes. Method: The study utilizes a qualitative research approach, collecting primary data through six semi-structured interviews. The number of participants was equally distributed between buyers and suppliers, all experienced working with KAM. A thematic analysis was then used to analyze the empirical findings. Conclusion: Based on the results, a conclusion is drawn that there is no mutual understanding between the buyer and supplier regarding valuable traits of a KAM manager. Aligning with previous research, all participants shared the view concerning the individual's importance in KAM, however having divided opinions about which personality traits would contribute to the valuable outcomes. The buyers emphasized the importance of structure and planning relating to the personality trait conscientiousness to optimize KAM outcomes, while the suppliers rather placed focus on aspects connecting to the personality trait extraversion.
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Tsui, Hiu-wai Isabella, and 徐曉慧. "Wetland restoration and port back-up facilities in Kam Tin." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2009. http://hub.hku.hk/bib/B42664597.
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Tsui, Hiu-wai Isabella. "Wetland restoration and port back-up facilities in Kam Tin." Click to view the E-thesis via HKUTO, 2009. http://sunzi.lib.hku.hk/hkuto/record/B42664597.
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Thesis (M. L. A.)--University of Hong Kong, 2009.Includes special report study entitled: Industrial constructed freshwater wetland for waterfowls and water treatment. Includes bibliographical references. Also available in print.
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PARONCINI, ALESSIO. "Wieng Kum Kam: conoscenza e rappresentazione di un contesto archeologico." Doctoral thesis, Università Politecnica delle Marche, 2011. http://hdl.handle.net/11566/241911.
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Il tema di ricerca verte sulla rappresentazione del sistema templare del sito archeologico di Wieng
Kum Kam situato nella Thailandia nord-occidentale presso Chiang Mai.
Tale sistema è formato da circa ventisei templi buddhisti che coprono un arco cronologico
compreso tra il XIII e il XVI secolo.
L’attività di studio sul sito di Wieng Kum Kam è inserita in un progetto congiunto tra il Thai Fine
Arts Department, il DARDUS e la Faculty of Architecture of Chiang Mai University (FACMU),
con cui è stato stipulato un agreement nel 2006, finalizzato alla valorizzazione del sito archeologico.
L’obiettivo finale della ricerca è la conoscenza e ricostruzione virtuale dell’intero sistema templare
e lo studio di un sistema di comunicazione sotto forma di banca dati virtuale da applicare in via
sperimentale su un tempio scelto come campione.
L’attività di ricerca è consistita in una fase di conoscenza del sito e delle problematiche ad esso
connesse. Si è infatti proceduto con il reperimento di fonti storiche relative al sito in questione, allo
studio di immagini satellitari Quickbird ad alta risoluzione finalizzato alla comprensione del
territorio e del modello insediativo dell’abitato antico ed all’analisi del contesto esistente.
E’ stata in seguito acquisita la documentazione relativa ai singoli templi, allo studio delle
planimetrie ricorrenti a Wieng Kum Kam ed in altre località della regione e ad una prima fase di
studio sui materiali costruttivi volta a stabilirne le caratteristiche salienti. È stato così possibile
procedere con la modellazione dei templi tramite ipotesi ricostruttive tridimensionali basate sulle
planimetrie disponibili, sul confronto con tipologie architettoniche simili presenti nell’area di
Chiang Mai e per mezzo dello studio dell’architettura tradizionale della regione Lanna (l’area
storica in cui si trova Wieng Kum Kam).
E’ stato inoltre approfondito il tema del degrado e delle problematiche generali di conservazione
delle strutture archeologiche, messe in pericolo dall’eccessiva attività edilizia e dal degrado dovuto
ad agenti atmosferici. Ai fini dell’analisi del degrado dei materiali costruttivi, è stata compiuta una
seconda campagna di campionamenti a seconda della tipologia di degrado riscontrata nelle strutture.
Si è pertanto proceduto con la documentazione fotografica dei dissesti strutturali e allo studio della
porosità del materiale campionato per stabilirne il grado di vulnerabilità all’acqua piovana e
all’umidità, nonché allo studio tramite XRD ed analisi termica delle patine che rivestono la maggior
parte delle strutture templari, determinandone la loro origine organica. Infine è stato realizzato il
modello tridimensionale di un’ipotesi ricostruttiva dello stato originario dell’insediamento ed è stata
inoltre elaborata una banca dati virtuale su due templi campione finalizzata alla documentazione ed
alla comunicazione dei dati e delle problematiche connesse ai templi in esame.The research theme focuses on the templar system representation of Wieng Kum Kam archaeological site that is located in northwestern Thailand near Chiang Mai. This system consists of about twenty-six temples that cover a period between the thirteenth and sixteenth century. The study activities on Wieng Kum Kam site is part of a joint project between the Thai Fine Arts Department, the DARDUS and the Faculty of Architecture of Chiang Mai University (FACMU), which was entered into an agreement in 2006, aimed enhancement of the archaeological site. The ultimate goal of research is knowledge and the virtual reconstruction of the entire templar system and the study of a communication system as a virtual database to be used as experimental basis on a temple chosen as standard. The research consisted of a knowledge phase of the site and problems associated with it. It was in fact carried out the retrieval of historical sources relating to the site, the study of high-resolution Quickbird satellite imagery aimed at territory understanding and the ancient settlement pattern and the analysis of the existing context. Was later acquired the data about individual temples, the study of applicant plans in Wieng Kum Kam and other localities in the region and the first phase of study on building materials to establish the salient features. It was thus possible to proceed with the modeling three-dimensional reconstruction of temples through assumptions based on available floor plans, on a comparison with similar architectural styles in the area of Chiang Mai and through the study of traditional Lanna region (the area in which Wieng Kum Kam historical site is located). It was further examined the issue of degradation and of the general issues of conservation of archaeological structures, endangered by excessive construction activity and the degradation due to weathering. For the analysis of the degradation of building materials, was carried out a second campaign of sampling depending on the type of degradation found in the structures. Has been undertaken with the photographic documentation of structural instability and to study the porosity of the material sampled to determine the degree of vulnerability to rain water and moisture, and the study by XRD and thermal analysis of the patinas that cover most templar structures, determining their organic origin. Finally, it was realized three-dimensional model of the hypothetic original state of the settlement and have been developed a virtual database on two temples chosen as sample for recording and reporting of data and issues related to the temples concerned.
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Placci, Jacopo. "Alcune applicazioni di un teorema KAM infinito-dimensionale alle equazioni di Schrödinger." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2018. http://amslaurea.unibo.it/15782/.
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Lo scopo di questa tesi è di enunciare un teorema KAM per moti quasi-periodici in sistemi Hamiltoniani infinito-dimensionali e di studiare due applicazioni alle equazioni di Schrödinger.
Nel primo capitolo viene enunciato il Teorema KAM infinito-dimensionale. Il secondo ed il terzo capitolo sono dedicati all'applicazione di tale teorema alle equazioni di Schrödinger.
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Castan, Thibaut. "Stability in the plane planetary three-body problem." Thesis, Paris 6, 2017. http://www.theses.fr/2017PA066062/document.
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Arnold a démontré l'existence de solutions quasipériodiques dans le problème planétaire à trois corps plan, sous réserve que la masse de deux des corps, les planètes, soit petite par rapport à celle du troisième, le Soleil. Cette condition de petitesse dépend de façon cachée de la largeur d'analyticité de l'hamiltonien du problème, dans des coordonnées transcendantes. Hénon ex- plicita un rapport de masses minimal nécessaire à l'application du théorème de Arnold. L'objectif de cette thèse sera de donner une condition suffisante sur les rapports de masses. Une première partie de mon travail consiste à estimer cette largeur d'analyticité, ce qui passe par l'étude précise de l'équation de Kepler dans le complexe, ainsi que celle des singularités complexes de la fonction perturbatrice. Une deuxième partie consiste à mettre l'hamiltonien sous forme normale, dans l'optique d'une application du théorème KAM (du nom de Kolmogorov-Arnold-Moser). Il est nécessaire d'étudier le hamiltonien séculaire pour le mettre sous une forme normale adéquate. On peut alors quantifier la non-dégénérescence de l'hamiltonien séculaire, ainsi qu'estimer la perturbation. Enfin, il faut démontrer une version quantitative fine du théorème KAM, inspirée de Pöschel, avec des constantes explicites. A l'issue de ce travail, il est montré que le théorème KAM peut être appliqué pour des rapports de masses entre planètes et étoile de l'ordre de 10^(-85)Arnold showed the existence of quasi-periodic solutions in the plane planetary three-body prob- lem, provided that the mass of two of the bodies, the planets, is small compared to the mass of the third one, the Sun. This smallness condition depends in a sensitive way on the analyticity widths of the Hamiltonian of the three-body problem, expressed with the help of some tran- scendental coordinates. Hénon gave a minimal ratio of masses necessary to the application of Arnold’s theorem. The main objective of this thesis is to determine a sufficient condition on this ratio. A first part of this work consists in estimating these analyticity widths, which requires a precise study of the complex Kepler equation, as well as the complex singularities of the disturb- ing function. A second part consists in reworking the Hamiltonian to put it under normal form, in order to apply the KAM theorem (KAM standing for Kolmogorov-Arnold-Moser). In this aim, it is essential to work with the secular Hamiltonian to put it under a suitable normal form. We can then quantify the non-degeneracy of the secular Hamiltonian, as well as estimate the perturbation. Finally, it is necessary to derive a quantitative version of the KAM theorem, in order to identify the hypotheses necessary for its application to the plane three-body problem. After this work, it is shown that the KAM theorem can be applied for a ratio of masses that is close to 10^(−85) between the planets and the star
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Lo, Lap-bong Raymond, and 盧立邦. "Opportunities and constraints of heritage tourism development in Hong Kong: a case study of Kam Tin." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2003. http://hub.hku.hk/bib/B27791130.
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Wong, Wing-sze. "Water chemistry in the Kam Tin basin, natural and authropogenic influences." Click to view the E-thesis via HKUTO, 2007. http://sunzi.lib.hku.hk/hkuto/record/B38605843.
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Massetti, Jessica Elisa. "Quasi-périodicité et quasi-conservativité." Observatoire de Paris, 2015. https://hal.science/tel-02095301.
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En 1967, J. Moser établit un remarquable théorème de forme normale pour des perturbations analytiques de champs de vecteurs analytiques possédant un tore invariant réductible quasi-périodique de fréquences Diophantiennes. Dans la première partie du travail nous présentons une preuve alternative à celle de Moser, consistant à trouver la solution d’une équation fonctionnelle non linéaire à travers un théorème d’inversion locale en classe analytique. Dans le même esprit que cette forme normale, il est possible de montrer l’existence d’autres types de formes normales dépendant des symétries présentes dans els équations. Il est immédiat de déduire de ces formes normales des résultats de type KAM si le système considéré dépend d’une « bonne façon » d’un nombre suffisant de paramètres – internes ou externes au système. Le résultat de persistance est ainsi obtenu à partir d’une technique d’élimination de paramètres, mise au point par Herman et R\ʼˈussmann, ainsi que d’autres auteurs dans les années 80-90. Dans ce cadre, le problème spin-orbit dissipatif en mécanique céleste, présenté récemment par différents auteurs, est traité plus facilement et déduire l’existence d’attracteurs quasi-périodiques devient un cas particulier de petite dimension. En outre, le processus d’élimination des paramètres met en relief des relations entre dissipation, fréquence et perturbation propres au système spin-orbite. Ceci donne une meilleure compréhension de leur rôle et ouvre la voie à une étude plus globale dans l’espace des paramètres sur la persistance de différents types de mouvements aux perturbations. Dans l’annexe, un analogue discret 2-dimensionnel du théorème de Moser est aussi présentéIn 1967, J. Moser published a powerful normal form theorem for analytic perturbations of analytic vector-fields possessing an invariant quasi periodic reducible torus with Diophantine frequencies. In the first part of the work we present an alternative proof of Moser’s result which consists in finding the solution of a non linear functional equation through an abstract inverse function theorem in analytic class. In the same spirit as Moser’s normal form one can prove the existence of others types of normal forms, according to the symmetries present in the equations. From these it is straightforward to deduce some KAM-type result if the system under consideration depends in an opportune way on sufficient number of “free parameters” – external or internal to the system. The persistence results is hence obtained through a technique of elimination of parameters set up by Herman, R\ ʼˈussmann and other autohrs in the 80-90’s. In this frame, the dissipative spin-orbit problem of celestial mechanics, studied by different authors in the last few years, can more easily be handled and the issue of proving the persistence of quasi-periodic attractors becomes a particular case of low dimension. Additionally, the process of elimination of parameters developed in this context, highlghts relations among dissipation, frequency and perturbation proper to the spin-orbit system and brings out a better understanding of their role, opening the way to a more global study in the parameter’s space on the persistence of different kinds of motions under perturbation. In the appendix, a 2-dimensional discrete time analogue of Moser’s theorem is also given
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Cresson, Jacky. "Propriétés d'instabilité des systèmes Hamiltoniens proches de systèmes intégrables." Observatoire de Paris, 1997. https://hal.archives-ouvertes.fr/tel-02071388.
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L’objet de ce mémoire est l'étude des propriétés d'instabilité des systèmes hamiltoniens voisins de systèmes intégrables. Plus précisément, nous étudions le mécanisme d'Arnold (encore appelé diffusion d'Arnold). Nous décrivons tout d'abord l'espace des phases au voisinage d'un tore partiellement hyperbolique et le long d'une chaine de tore. Nous démontrons que les tores hyperboliques provenant de la destruction d'un tore résonnant le long d'une surface de résonance quelconque vérifie la propriété d'obstruction. Nous montrons ensuite qu'il existe une dynamique symbolique au voisinage d'un tore homocline transverse. Ces résultats nous permettent de déduire l'existence d'orbites le long d'une chaine et l'existence d'une chaine d'orbites périodiques hyperboliques. On montre alors l'existence d'orbites périodiques de période arbitrairement longue le long de la chaine, résolvant ainsi une conjecture de Holmes-Marsden. Nous estimons ensuite le temps de dérive d'une orbite le long d'une chaine. Nous éclaircissons le lien entre les différentes données du problèmes (angle d'intersection, propriété d'Ergodisation sur le tore) et le temps calcule. On démontre ainsi que le temps de dérive dans un système Hamiltonien initialement hyperbolique est polynomial. La méthode mise au point est générale et valable pour une chaine abstraite, ce qui n'est pas le cas des méthodes variationnelle actuelles. On applique enfin l'ensemble de nos résultats à des systèmes issus de la physique. Nous décrivons dans un premier temps une classe de systèmes pour lesquels il existe toujours des chaines de transition. Notre but est ensuite de montrer qu'une grande classe de ces systèmes contient des problèmes physiques classiques (problème restreint elliptique plan des 3 corps, dynamique d'une galaxie elliptique). Ce travail nous permet de discuter, de manière informelle, une nouvelle construction d'orbites d'instabilité permettant de lever le problème des trous dû à la méthode d'ArnoldThe purpose of this thesis is to study instability properties of near-integrable Hamiltoniens systems, in particular Arnold’s diffusion. We first describe the phase-space near a partially hyperbolic torus and along a transition chain. We prove that hyperbolic tori, which come from the destruction of resonant tori, are transition tori. We then show that transvers homoclinic partially hyperbolic tori possess a symbolic dynamics. These results allow us to prove the existence of instability’s orbits along a chain as well as periodic orbits of arbitrarily hight period as conjectured by Homes-Marsden. Second, we estimate the time of drift along a chain by geometrical methods. We precise the role of the splitting size, ergodisation time… We prove that for initially hyperbolic Hamiltonian systems this time of drift is polynomial. Our method is general and applies on abstract chain of tori, which is not the case of variational methods. Last, we apply our result on specific examples. We first describe a class of systems, which always possess transition chain. We then show that this class contains a lot of classical systems as the three body problem, Rydberg’s atom…
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Hansson, Irene, and Pernilla Ström. "KAM-komplementär och alternativ medicin. En litteraturstudie om sjuksköterskans kunskap och attityder." Thesis, Malmö högskola, Fakulteten för hälsa och samhälle (HS), 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-25935.
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Den ökande användningen av komplementär och alternativ medicin (KAM) bland befolkningen föranledde syftet med föreliggande studie. Författarna ville undersöka vilken kunskap och vilka attityder sjuksköterskor har gällande KAM och hur detta påverkar sjuksköterskans ställningstaganden. Litteraturstudie valdes som metod där åtta artiklar granskades och analyserades. Leiningers teori och Sunrises modell användes som teoretisk referensram. Resultaten visar att sjuksköterskor generellt är positivt inställda till KAM men har begränsade kunskaper i ämnet. Lagstiftning, utbildning och forskning gällande KAM är nödvändigt för att sjuksköterskan skall kunna möta patienternas krav på en holistisk och kompetent omvårdnad.The increasing use of complementary and alternative medicine (CAM) among the general public caused the aim of this study. The purpose of the study was to investigate nurse practitioners knowledge and attitudes towards CAM and how this affects the nurse practitioners considerations. A literature review was selected as method and eight articles were reviewed and analysed. Leininger´s theory and Sunrise´s model has been used as theoretical frame of reference. The results indicate that nurse practitioner has a positive attitude in general towards CAM but their knowledge is limited. To be able to meet patients demands on holistic and competent care, legislation, education and research towards CAM is essential for the nurse practitioner.
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Bylund, Mats. "Stability in Hamiltonian Systems : KAM stability versus instability around an invariant torus." Thesis, KTH, Matematik (Avd.), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-201616.
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In his ICM-54 lecture, Kolmogorov introduced a now fundamental result regarding the persistence of a large (in the measure theoretic sense) set of invariant tori, in a certain category of almost-integrable Hamiltonian systems. 44 years later, in his ICM-98 talk, Herman conjectured that given any analytic Hamiltonian system with an invariant diophantine torus, this torus will always be accumulated by a positive measure set of invariant KAM tori, i.e. it will be KAM stable. In this thesis, we build upon recent results and provide a counterexample in three degrees of freedom to KAM stability around an invariant torus, in the category of smooth Hamiltonian systems. The thesis is self-contained in the sense that it also includes a brief introduction to Hamiltonian systems, as well as an exposition of Kolmogorov's classic result.Under sin ICM-54 föreläsning introducerade Kolmogorov ett numera fundamentalt resultat angående bevarandet av en måtteoretiskt stor mängd invarianta torusar, inom en viss kategori av nästan intagrabla Hamiltonska system. 44 år senare, under sitt ICM-98 tal, formulerade Herman en förmodan om att en invariant diofantisk torus tillhörande en analytisk Hamiltonian alltid omges av en mängd invarianta KAM torusar av positivt mått. Detta examensarbete bygger vidare på befintliga resultat och ger i fallet tre frihetsgrader ett motexempel till KAM stabilitet kring en invariant torus, i kategorin glatta Hamiltonska system. Arbetet är självtillräckligt i den mening att det även ges en kort introduktion till Hamiltonska system, samt en exposition av Kolmogorovs klassiska resultat.
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Schönfuß, Klaus. "Dr. Georg Kühne: Der erste „Fernseh-Meteorologe“ der DDR kam aus Radeberg." Teamwork Schönfuß, 2018. https://slub.qucosa.de/id/qucosa%3A73762.
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Georg Kühne (1910 Ottendorf-Okrilla - 2001 Berlin)
Das interessante Leben von Dr. Georg Kühne ist auf das engste mit der Entwicklung des Deutschen Fernsehfunks, dem Wettbewerbsbestreben zwischen den zwei deutschen Staaten Ost und West um die Vorreiterrolle dieses Mediums im gesamtdeutschen Konflikt zu sehen. Kühne wurde mit Einführung der bisher unüblichen Wettervorhersagen im Fernsehen zum ersten Ansager der täglichen Wetterberichte, im Anschluss an die „Aktuelle Kamera“. Der in Radeberg aufgewachsene Georg Kühne, Schüler am Radeberger Realgymnasium mit Realschule, absolvierte an der Technischen Hochschule Dresden sein Lehrerexamen, promovierte zum Dr. der Technischen Wissenschaften, darauf folgte ein Zusatzstudium zum Meteorologen. Diese Tätigkeit, unterbrochen durch die Kriegsereignisse, wurden ab 1949 in der Zentralen Wetterdienststelle Potsdam fortgesetzt. Hier wurde er zu einem der maßgeblichen Wissenschaftler auf dem Gebiet der Meteorologie, später der Erforschung der Klimatologie, in der DDR. Seine Leistungen führten dazu, dass er zum Leiter der „Zentralen Wetterdienststelle Potsdam“ (ZWD) berufen wurde. Dieses hohe Amt hatte er bis zum Beginn seines Ruhestandes 1975 inne.
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Viveros, Rogel Jorge. "An extension of KAM theory to quasi-periodic breather solutions in Hamiltonian lattice systems." Diss., Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/19869.
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We prove the existence and linear stability of quasi-periodic breather solutions in a 1d Hamiltonian lattice of identical, weakly-coupled, anharmonic oscillators with general on-site potentials and under the effect of long-ranged interaction, via de KAM technique. We prove the persistence of finite-dimensional tori which correspond in the uncoupled limit to N arbitrary lattice sites initially excited. The frequencies of the invariant tori of the perturbed system are only slightly deformed from the frequencies of the unperturbed tori.
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Lau, Tak Francis. "The impact of West Rail on the development in Kam Tin Area, Yuen Long /." Hong Kong : University of Hong Kong, 1999. http://sunzi.lib.hku.hk/hkuto/record.jsp?B21042792.
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Shaqiri, Enea. "Teoria canonica delle perturbazioni." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2015. http://amslaurea.unibo.it/9437/.
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Ci proponiamo di introdurre i risultati principali della teoria canonica delle perturbazioni. In particolare, studiamo la riduzione generale di sistemi unidimensionali e la teoria di Birkhoff nel caso multidimensionale. Come ulteriori sviluppi, descriviamo anche il teorema KAM.
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Hartwig, Ines. "Hamiltonsche Dynamik in einem räumlich ungeordneten eindimensionalen Kick-Potential." Master's thesis, Universitätsbibliothek Chemnitz, 2009. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-200900467.
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Die vorliegende Arbeit kombiniert Aspekte der nichtlinearen Dynamik mit denen der Unordnungsphysik. Die bekannte Standardabbildung wird mit einem räumlich ungeordneten aber periodischen Potential modifiziert. Transportexponenten sowohl für den Impuls als auch die kanonisch konjugierte Koordinate für das Standard- und das Zufallsmodell werden gegenübergestellt. Für das Zufallspotential ergibt sich verstärkter Transport. Gemittelte Transportexponenten des Zufallspotentials werden präsentiert und für verschiedene Systemausdehnungen verglichenThe thesis at hand combines aspects of nonlinear dynamics with the physics of disorder. The standard map potential is replaced by a spatially quenched random periodic potential. Transport exponents for the standard and the random model are determined for the momentum as well as the canonically conjugate coordinate. Transport for the disordered potential is increased in comparison to the standard map. For the random case, quenched average transport exponents are presented. Finite-size effects are examined
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Saha, Prasenjit. "A perturbation method from KAM theory with applications to stellar and asteroidal motion." Thesis, University of Oxford, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.315813.
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Hanpongkittikul, Apiradee. "Management of watergate to enhance fisheries in the Nam Kam River system, Thailand." Thesis, University of Hull, 2017. http://hydra.hull.ac.uk/resources/hull:16464.
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The impact of watergate operation on hydrology and habitat, and their effects on fish migration, fish diversity, population structure, and recruitment of fisheries resources were studied in the Nam Kam River system, a tributary of the Mekong in Thailand. The factors that influence the migration of fish were identified and the effectiveness of fish passage facilities installed at watergates in the river system were investigated. The flow regime and flood cycle were modified by watergate operation, which is designed to control floods in the wet season and retain water for irrigation in the dry season. Fluctuations in flow and water level were created and varied along the river in the wet season. Timing, frequency and duration of floods in each habitat down the river were altered. Operations for irrigation removed low flows and created longer periods of no flow in the dry season. The river becomes stagnant and water levels in the floodplains above the watergates are higher than pre-construction. Many new nursery and feeding habitats were created after construction, but water abstraction also disconnected the floodplain below the watergate and the mainstem river. Flow modification driven by watergate operation for flood control is likely to delay water level rise at the onset of the flood in the downstream area that trigger upstream migration of fish into the Nam Kam River system, especially pangasids. The watergate operation limits the upstream migration of adult fish at the onset of the flood season and inhibits the upstream migration of late migrating species, the downstream migration of fish, and drifting of eggs, larval and juvenile fish since all sluice gates were closed at the end of the flood season. Longitudinal migrating species are more likely to be impacted than lateral migrating species and this will impact on the overall population structure of fishes. Several longitudinal migratory white fish species, main channel residents and main channel spawners declined in abundance or were absent in the upstream area above Thoranit Naruemit Watergate and it most likely resulted from hydrological alteration driven by watergate operation. Fish larvae and juvenile fish in this river system were dominated by resident grey and black fish, while recruitment of white fish species was limited as watergate operation obstructs the upstream migration of adult fish during the spawning season. Diversity of fish in the river decreased from downstream to upstream area, it shows a negative relationship with number of barriers. The relative abundance of white fish was significantly different between the floodplain above and below Thoranit Naruemit watergate during the study period. Seasonal distribution of fish in the Nam Kam River system is different from the free-flowing Songkhram River. At the end of flood season, diversity of fish in the regulated river was high since larvae and juvenile fish and many white and grey fish species are stranded in the floodplain above the watergate after sluice gates were completely closed. These fish have subsequently adapted to feed and grow in the poor habitat conditions during the dry season. Genetic study of two target species, Hemibagrus nemurus and Osteochilus hasselti, indicates high genetic diversity and big population sizes maintained by gene flow from the downstream populations and nearby populations when the watergates are opened. Populations of the two target species in the most upstream lake, Nong Han, are contributed by migrating fish from Mekong River and resident populations with in the river system. Rate of migrations, small genetic distances and genetic differentiations between subpopulations of the target species support the occurrence of gene flow in this river; many subpopulations have little genetic differentiation between samples although there is the series of barriers in the river system. By chance, population size of the two migratory species migrating through the Thoranit Naruemit and Suraswadi fish passes were relatively big and bigger than populations along the river suggesting that upstream migration of target species is only partially limited by watergate operation. This is probably because the Nam Kam River is a rather short river and gene flow in the river system was supported by the operation schedule that fully open the watergates in flood season and the fish pass operation at the onset and the end of flood season. Thus, the most important things that need to be addressed to maintain fisheries resources in this river system are watergate and fish passage operations. Fish passage facilities in the Nam Kam support migration of more than 135 fish species and mitigate the impact of delayed watergate opening on the recruitment of fish in this river system. However, the operational schedule needs to be adjusted since fish can only use the fish passes when the sluice gates are closed or partially opened dring high river discharge in the wet season. Upstream migration is only completely unobstructed when the watergates are open to maximum capacity. The watergate and fish passes management schemes in the river system are key important factors to mitigate the impact on hydrological changes and habitat changes, to enable free movement of fish through the river system and enhance the fisheries in the Nam Kam River system. Recommendations for watergate and fish pass operation based on the integrated knowledge gained from this study are provided.
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Finifrock, Jacob. "Trilingual education in the Kam-speaking region of Guizhou : policy, praxis, and perceptions." Thesis, Bangor University, 2017. https://research.bangor.ac.uk/portal/en/theses/trilingual-education-in-the-kamspeaking-region-of-guizhou(155bf6b7-bd55-4d2c-b069-27ad677b4e5c).html.
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In recent years, as China has embraced global trends and promoted English-language instruction throughout the country, minority-language dominated regions have been facing the challenge of incorporating three languages into the curriculum. Research has indicated that combining the minority language (L1), the national language (L2), Mandarin, and an international language (L3), English, into one curriculum has taken different forms with varied characteristics depending on the minority language context in question. While the body of literature is growing in this field, primarily in minority language areas that had pre-existing scripts prior to the formation of the People’s Republic of China in 1949, there has been much less research into trilingual education practices in areas where minority language groups did not have pre-existing scripts. This study focuses on one such language group, the Southern Kam of Guizhou province. Adopting an ethnographic multi-case study approach, this research explores the sociolinguistic and historical context of education in the Kam region, and captures the status quo of language use practice and stakeholder attitudes towards the three languages involved in nine-year compulsory education in the current context. This research incorporated a mixed-methods approach, in which data were collected from a cohort of participants with whom the researcher had developed significant relationships. Ethnographic interviews were conducted and were complemented with site visits and classroom observations of participants teaching English. This study found that although the Kam language (L1) remains vital in the current context and at the time of the study was the dominant spoken language of Kam students; it was not used in academic instruction, nor was its use promoted in the classroom setting, though its use outside of the classroom was encouraged for cultural heritage purposes. Instead, Mandarin Chinese, the L2 of Kam students, was the dominant language of education, testing, and school functions. L3, English, was taught as an academic subject through the medium of Mandarin Chinese, but was not used as a medium of instruction in any circumstance. This study found that stakeholder perceptions and attitudes towards Kam, Mandarin, and English existed in a complex dynamic and opinions regarding language in education were largely based on misperceptions of best practices for trilingual education and a lack of awareness of beneficial demonstrated outcomes. Limitations are discussed and potential further studies are recommended. The research concludes by evaluating the findings of this study in light of previous research into additive trilingual education and recommendations are made for improving the current forms of language education in the Kam-speaking region. Most notably, this study calls for education officials in Guizhou to develop policy, in accordance with constitutional freedoms, that creates mplementational space for developing minority language students’ L1 in accordance with research-based principles of additive trilingual education that will in turn improve performance and mastery of L2, Mandarin, and adequately develop L3, English.
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Grönhult, Magnus, and Felicia Karlsson. "Key Account Managements värde för säljande tjänsteföretag." Thesis, Linköpings universitet, Företagsekonomi, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-120370.
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Att skapa starka och långsiktiga relationer till sina kunder har för företag blivit en nödvändighet i den industriella marknadsföringen, där relationerna i sig själva kan ses som den viktigaste tillgången för verksamheten. Från området inom relationsmarknadsföring har Key Account Management vuxit fram och blivit ett populärt begrepp, där en koncentrerad mängd av företagets kunder prioriteras högre än övriga. Syftet med denna uppsats är att beskriva och konkretisera det potentiella värde, sett som mellanskillnaden mellan fördelar och nackdelar, som skapas för det säljande tjänsteföretaget i användningen av KAM. Uppsatsen utgår från en kvalitativ ansats där en komparativ studie har genomförts genom att undersöka företag som uttalat använder Key Account Management mot företag som ej använder KAM, samt kundföretag. För att få tillgång till empririn har sex stycken intervjuer med företag genomförts. Två som har KAM, två som inte har KAM. Dessutom har intervjuer utförts med kund till ett KAM-företag, samt en kund till ett företag som inte använder KAM. Genom att ha en stödjande organisation, fyra centrala delar i sitt KAM, kompetenta Key Account Managers, samt aktiva kunder är mjuka värden såsom förbättrad relation och kundförståelse givet. Dessa kan i sin tur leda till andra mjuka och hårda värden och därför ökad lönsamhet. KAM är däremot en investering som tar mycket resurser, samtidigt som flertalet potentiella nackdelar är tänkbara. Värdet har i denna studie identifierats som skillnaden mellan tänkbara fördelar och nackdelar, men detta skiljer sig åt från företag till företag vilket gör att det faktiska värdet varierar.To build strong and long-lasting customer relationships has become a necessity in industrial marketing, whereat the relationships in itself can be viewed as the most important asset for the company. Key Account Management has its roots in relationship marketing and has grown in popularity the past decades. By selecting and focusing primarily on a few key customers, which the company deems to be the most important, Key Account Management is purposed to generate and locate value. The purpose of this paper is to describe and substantiate the potential value, seen as the difference between advantages and disadvantages, that Key Account Management may provide for the selling company. The study has a qualitative approach consisting of six interviews. Two companies with Key Account Management, two companies without KAM and two customer companies were interviewed in a comparative design. One of the customers had a relationship to one of the companies with KAM, whilst the other one did not. By having a supporting organization, four critical aspects to the companies KAM, a qualified Key Account Manager, and active customers, soft values as improved relationships and customer understanding are guaranteed. These can in turn enable access to other soft and hard values that leads to higher profit. KAM is however an investment which occupies a lot of resources, alongside with creating potential disadvantages. The value has in this study been identified as the difference between potential advantages and disadvantages, but these differ from company to company which in turn makes the actual value from KAM various.
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Wickström, Madeleine, and Maroua Chniti. "Hur aromaterapi via luktsinnet kan påverka livskvaliteten." Thesis, Linnéuniversitetet, Institutionen för hälso- och vårdvetenskap (HV), 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-44741.
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Bakgrund: Aromaterapi kan användas i olika syften, exempelvis för avslappning, stimulering och för att lugna individer. Denna Komplementära- och Alternativa Metod (KAM) används väldigt begränsat i Sverige idag, men används som ett komplement inom hälso- och sjukvården i andra länder. Vårdens ansvar är att ge en god vård i samråd med patienten genom att ta hänsyn till individens livsvärld. I denna studie definieras livsvärld som en helhetssyn på människan och utgår från begreppet livskvalitet ur ett subjektivt och objektivt perspektiv. Den teoretiska förankringen utgick från ett humanvetenskapligt perspektiv knuten till Dahlberg och Segestens definition av livsvärldsperspektiv. Syfte: Att undersöka om Aromaterapi via luktsinnet kan påverka faktorer som kan vara av betydelse för livskvaliteten. Metod: En systematisk litteraturstudie av nio artiklar publicerade 2010-2015 och två artiklar publicerade 2000 och 2005 som kom till genom sekundärsökning. Samtliga artiklar granskades genom författartriangulering och analyserades sedan med ett induktivt arbetssätt. Resultat: I studien framkom skillnader i den upplevda effekten av aromaterapi och de objektiva värdena som mättes. Vår studie visade olika effekter av aromaterapi, beroende på i vilket syfte doftstimuleringen användes. Aromaterapi via luktsinnet med hjälp av eteriska oljor kan öka välbefinnandet hos människor, men fungerar inte på alla indikationer. Slutsats: Aromaterapi kan ha effekt beroende på indikation och har en större verkan på individens subjektiva upplevelser jämfört med de objektiva mätta värdena. Vidare forskning både ur ett vårdvetenskapligt och medicinskt perspektiv föreslås.
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Friesen, Wardlow. "Labour mobility and economic transformation in Solomon Islands: lusim Choiseul, bae kam baek moa?" Thesis, University of Auckland, 1986. http://hdl.handle.net/2292/2442.
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This thesis examines the relationship of labour mobility and socioeconomic transformation in the Solomon Islands, and proposes that one cannot be understood in isolation from the other. Explanation is pursued both at the levels of structure and of agency, and integration of these levels is attempted in some places. This is discussed in the first part of the thesis, within a general discussion of issues of theory and method. The second part of the thesis deals with the structural parameters of labour mobility. Through the twentieth century, the institutions of government, mission and capitalist enterprise have been central in shaping the Solomon Islands social formation. The roles of these formal institutions with implications for labour mobility have ranged from purveyors of ideology to employers of labour. Another major element in the social formation is an original Melanesian mode of production which influences labour mobility through village-level institutions such as the land tenure system, kinship, and household operation. Labour circulation is a major factor in linking village and non-village institutions, and more abstractly in articulating two different modes of production. The third part of the thesis considers the ways in which individual agency operates within structure. The data base are life histories and related information from the Mbambatana language group on the island of Choiseul. This is integrated with national, regional and village-level structural information. Education is important in the way it 'selects' individuals for certain kinds of employment. This selection process occurs within the wage economy generally, but is further refined within institutions of employment. This results in labour mobility 'streams' which have identifiable characteristics related to gender, education, and employment type. Movements within each 'stream' have typical temporal and spatial characteristics. Patterns of labour mobility, especially sequence, are affected by gender and life cycle factors. For men and women the most critical changes take place in the 20s age span, but individual behaviour varies according to marriage and childrearing patterns. From a village perspective, labour circulation is a logical response to the necessity of operating within two different economic systems typified by different modes of production. This process of articulation is manifest in other ways as well, and households or families may adopt different strategies in operating within two different systems. The particular strategy adopted depends on the labour power available, degree of access to land, and employment possibilities of individual members.
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Lau, Tak Francis, and 劉德. "The impact of West Rail on the development in Kam Tin Area, Yuen Long." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1999. http://hub.hku.hk/bib/B31259935.
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Lesage, Jakob. "A grammar and lexicon of Kam (àŋwɔ̀m), a Niger-Congo language of central eastern Nigeria". Thesis, Paris, INALCO, 2020. http://www.theses.fr/2020INAL0008.
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Cette thèse fournit la première description détaillée du Kam (àŋwɔ̀m), une langue Niger-Congo parlée à Taraba State, dans le centre-est du Nigéria, par environ 8 000 à 10 000 personnes. La thèse propose une analyse de la grammaire et du lexique du Kam, informée par la typologie et la linguistique aréale, et contribue ainsi à notre compréhension de la structure grammaticale des langues Niger-Congo. Cette description est basée sur des nouvelles données linguistiques récoltées dans la communauté Kam entre 2016 et 2018. Elle se compose de six parties : (1) introduction, (2) analyse phonologique, (3) morphosyntaxe nominale, (4) morphosyntaxe verbale, (5) morphosyntaxe des propositions et (6) un échantillon de texte et un lexique composé de 1300 entrées. Les caractéristiques du Kam qui peuvent être d'un intérêt particulier pour la linguistique africaine et la linguistique générale comprennent les plosives labio-vélaires kp et gb ; une différence prosodique entre les positions fortes et les positions faibles dans les thèmes prosodiques ; la morphologie tonale utilisée pour la dérivation et pour la flexion ; l'absence de classes nominales et du genre grammatical ; des pronoms logophoriques ; les STAMP-morphs (des morphèmes qui expriment simultanément la personne et le nombre grammatical du sujet, le temps, l’aspect et la polarité d’une proposition); les constructions multi-verbes ; des stratégies de réduplication verbale; la négation de la proposition finale ; et les interrogatives de contenu bipartite. Les Kam et leur langue font partie du paysage linguistique et culturel diversifié du nord-est et du centre-est du Nigéria. A ce jour, on classifie le Kam comme une langue isolée dans la sous-famille Adamawa du Niger-Congo. Cependant, comme l'unité généalogique des langues Adamawa n'est plus largement acceptée aujourd’hui, la classification du Kam et des autres langues devrait être révisée. Bien que cette thèse ne traite pas la classification de Kam, elle fournit les données grammaticales et lexicales indispensables pour toute comparaison entre le Kam et d'autres langues et familles de languesThis thesis is the first extensive description of Kam (àŋwɔ̀m), a Niger-Congo language spoken in Taraba State, central eastern Nigeria, by an estimated 8,000 to 10,000 people. It offers a typologically and areally informed analysis of the grammar and lexicon of Kam, thereby advancing our understanding of the grammatical structure of Niger-Congo languages. This description is based on novel linguistic data collected in the Kam community between 2016 and 2018. There are six parts: (1) introduction, (2) phonological analysis, (3) nominal morphosyntax, (4) verbal morphosyntax, (5) clausal morphosyntax and (6) a sample of text and a lexicon with approx. 1,300 entries. Features of Kam that may be particularly interesting for African and general linguistics include labial-velar stops kp and gb; a difference between prosodically strong and prosodically weak positions in prosodic stems; tonal morphology used for both derivation and inflection; the absence of noun classes or gender; logophoric pronominals; STAMP-morphs; multi-verb constructions; verbal reduplication strategies; clause-final negation and bipartite content interrogatives. The Kam community and their language are part of the linguistically and culturally diverse landscape of north-east and central-east Nigeria. Previous research classified Kam as an isolated language within the Adamawa sub-family of Niger-Congo, whose genealogical unity is no longer widely accepted. Therefore, the classification of Kam and other languages should be reviewed. While classification is not addressed in this thesis, it provides grammatical and lexical data indispensable for any comparison between Kam and other languages and lineages
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Kim, Ho Jun. "Quantification of chaotic mixing in microfluidic systems." Texas A&M University, 2004. http://hdl.handle.net/1969.1/1084.
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Periodic and chaotic dynamical systems follow deterministic equations such as Newton's laws of motion. To distinguish the difference between two systems, the initial conditions have an important role. Chaotic behaviors or dynamics are characterized by sensitivity to initial conditions. Mathematically, a chaotic system is defined as a system very sensitive to initial conditions. A small difference in initial conditions causes unpredictability in the final outcome. If error is measured from the initial state, the relative error grows exponentially. Prediction becomes impossible and finally, chaotic systems can come to become stochastic system.
To make chaotic motion, the number of variables in the system should be above three and there should be non-linear terms coupling several of the variables in the equation of motion. Phase space is defined as the space spanned by the coordinate and velocity vectors. In our case, mixing zone is phase space. With the above characteristics
- the initial condition sensitivity of a chaotic system, our plan is to find most efficient chaotic stirrer. In this thesis, we present four methods to measure mixing state based on the chaotic dynamics theory.
The Lyapunov exponent is a measure of the sensitivity to initial conditions and can be used to calculate chaotic strength. We can decide the chaotic state with one real number and measure efficiency of the chaotic mixer and find the optimum frequency.
The Poincare section method provides a means for viewing the phase space diagram so that the motion is observed periodically. To do this, the trajectory is sectioned at regular intervals. With the Poincare section method, we can find 'islands' considered as bad mixed zones so that the mixing state can be measured qualitatively.
With the chaotic dynamics theory, the initial length of the interface can grow exponentially in a chaotic system. We will show the above characteristics of the chaotic system to prove as fact that our model is an efficient chaotic mixer.
The final goal for making chaotic stirrer is how to implement efficient dispersed particles. The box counting method is focused on measurement of the particles dispersing state. We use snap shots of the mixing process and with these snap shots, we devise a plan to measure particles' dispersing rate using the box-counting method.
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Benzekri, Tounsia. "Modélisation des ondes de surface dans un formalisme hamiltonien." Aix-Marseille 1, 2002. http://www.theses.fr/2002AIX11031.
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Nous avons étudié 3 modèles simulant l'évolution des équations d'ondes de surface bidimensionnelles, en gravité et en profondeur infinie. Ces équations sont écrites sous la forme hamiltonienne de Zakharov, de variables canoniquement conjuguées : élévation et potentiel à la surface. Les modèles construits dans les chapitres 3 et 4, ont été obtenus par des changements de variables canoniques. Le modèle étudié dans le chapitre 3, constitué de 4 modes en interaction, préserve les symétries des équations initiales. Ses 4 modes, de nombre d'onde k1, k2, - k1, -k2 ne sont jamais résonants. Ce modèle est intégrable. Dans le chapitre 4, nous avons considéré un modèle d'interaction à 6 modes, donc de dimension 12. La connaissance de 4 invariants nous a permis de le réduire à 4 dimensions. Les interactions sont celles de 2 résonances de Benjamin-Feir, couplées. Ce modèle a révélé un nombre important de solutions. A partir de certaines conditions initiales, les évolutions temporelles des amplitudes des différentes composantes ont pu être décrites. Des modulations d'amplitudes des modes donnant lieu à des échanges d'énergies ont été observées. Le troisième modèle présenté dans le chapitre 5 est le modèle d'interaction de 3 ondes de Zufiria. Nous avons appliqué la méthode de Kolmogorov, Arnold et Moser pour exhiber dans ce modèle des solutions qui ne sont pas de forme permanente
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Trujillo, Amezquita Frank. "Exotic and tame behaviour in quasi-periodic dynamics." Thesis, Université de Paris (2019-....), 2020. http://www.theses.fr/2020UNIP7042.
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Dans ce travail, nous étudions les conditions d'existence de phénomènes quasi périodiques et les implications de leur présence dans plusieurs systèmes dynamiques. Nous nous concentrerons principalement sur la dynamique hamiltonienne où nous fournissons des critères pour la persistance des mouvements quasi-périodiques associés à des tores résonants invariants (chapitre 2), explorons dans quelle mesure l'existence de mouvements quasi-périodiques caractérise le système (chapitre 3) et donnons des exemples des points fixes elliptiques instables avec deux degrés de liberté (chapitre 4). Pour les homéomorphismes critiques du cercle (chapitre 5), nous établissons une relation entre la dimension de Hausdorff de leurs mesures invariantes et leur nombre de rotation. Dans la dernière partie de cette thèse (chapitre 6) nous prouvons, à l'aide des approximations périodiques localisées, l'existence de transformations lisses à entropie nulle mélangeants sur T3 dont le produit avec elles-mêmes est lâchement BernoulliIn this work we study conditions for the existence of quasi-periodic phenomena and the implications of their presence in several dynamical systems. Our main focus will be Hamiltonian dynamics where we provide criteria for the persistence of quasi-periodic motions associated to invariant resonant tori (Chapter 2), explore to what extent the existence of quasi-periodic motions characterize the system (Chapter 3) and give examples of unstable elliptic equilibria with two degrees of freedom (Chapter 4). For critical circle homeomorphisms (Chapter 5) we establish a relation between the Hausdorff dimension of their invariant measures and their rotation number. In the last part of this thesis (Chapter 6) we prove, by means of localized periodic approximations, the existence of mixing zero entropy smooth transformations on T3 whose product with themselves is loosely Bernoulli
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Yeun, Man-yee. "A case study of a successful district shopping center in Hong Kong : Tsuen Kam Center /." View the Table of Contents & Abstract, 2006. http://sunzi.lib.hku.hk/hkuto/record/B35808718.
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Walsworth, Nicholas A. "Geographic image modelling of environmental degradation associated with acid mine drainage, Kam-Kotia Mine tailings." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0015/MQ26972.pdf.
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Yeun, Man-yee, and 袁敏兒. "A case study of a successful district shopping center in Hong Kong: Tsuen Kam Center." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2006. http://hub.hku.hk/bib/B45008772.
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Ayse, Altun, and Elisabeth Håkans. "När skolmedicinen inte räcker till En litteraturöversikt av Komplementär och Alternativ Medicin i vården (KAM)." Thesis, Högskolan i Borås, Institutionen för Vårdvetenskap, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-19761.
Full textAbstract:
Inom dagens hälso- och sjukvård finns det metoder som kompletterar den västerländska skolmedicinen. Metoder som kan komma att användas när skolmedicinen inte räcker till. Genomgående för vården med Komplementär och alternativ medicin, KAM metoder är en prägling av helhetstänkande ibland även kallat holistiskt synsätt.Syftet med denna uppsats är att beskriva den befintliga forskningslitteraturen med avseende på sjuksköterskans och övriga vårdpersonalens uppfattningar om KAM samt hur KAM används inom vården.Åtta studier sammanställdes och analyserades i en litteraturöversikt för att få en överblick över kunskapsläget. Resultatet presenteras med två huvudkategorier. Kategorierna är Uppfattning om KAM och Hur KAM används i vården. Uppfattning om KAM påverkas av önskan om mer kunskap om KAM, oklar definition av KAM, varierande personligt förhållningssätt till KAM och bristande evidens hos KAM. Hur KAM används i vården påverkas av hur sjuksköterskorna och övrig vårdpersonal uppfattar det att tala med patienter om KAM samt att makt- och organisationsstrukturer är ett hinder på arbetsplatsen. I diskussionen behandlas underkategorierna att tala med patient om KAM, där det diskuteras om hur sjuksköterskorna och övrig vårdpersonal talade om KAM med patienter trots att de kände sig obekväma, sjuksköterskor och övriga vårdpersonals önskan om ökad kunskap samt makt- och organisationsstrukturer som hinder för KAM inom hälso- och sjukvården.Program: Sjuksköterskeutbildning