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Newbold, David Michael. "Inclusive hyperon polarisation studies at the CERN SPS hyperon beam." Thesis, University of Bristol, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.265386.
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Horrell, Matthew Aaron. "Epic hyperbole in Homer." Diss., University of Iowa, 2017. https://ir.uiowa.edu/etd/5777.
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Few works have created such memorable characters as the Iliad and Odyssey. Readers come away from these works with the impression that the characters described in the stories are larger than life: Achilles is strong, Ajax is enormous, Patroclus is bloodthirsty, Nestor is ancient, Stentor is loud. Nobody leaves Homer’s epics thinking his heroes are not worthy of their lasting fame.
This study argues that, although the heroes of the two Homeric epics are meant to be impressive, their characterization in the Iliad and Odyssey is the result of a process of rationalization whereby the hyperbole traditionally ascribed to such figures was toned down when the two poems were finally committed to writing. I argue this by showing that the hyperbole used to describe these heroes is paralleled across many Indo-European epic traditions and that, for the most part, it is much more exaggerated in these related epics. From the scant remains of the Epic Cycle, there is reason to believe that the context in which Homeric poetry was formed was receptive to the fantastic. The best explanation of these two pieces of data is that the Iliad and the Odyssey rationalize traditional hyperbole. This was done so that the poems would have a broader appeal and greater clarity, vividness, and simplicity, traits which have long been considered hallmarks of Homer’s style.
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Baker, Charla Bezdek András. "Triangle centers and Kiepert's hyperbola." Auburn, Ala., 2006. http://repo.lib.auburn.edu/2006%20Fall/Theses/BAKER_CHARLA_6.pdf.
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Machado, Lucas Corrêa Netto. "Método de segmentações geométricas sucessivas para treinamento de redes neurais artificiais." Universidade Federal de Juiz de Fora (UFJF), 2013. https://repositorio.ufjf.br/jspui/handle/ufjf/4164.
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CAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
Este trabalho apresenta uma técnica para treinamento de Redes Neurais Artificiais (RNA), capaz de obter os parâmetros da rede através dos dados disponíveis para treinamento, sem necessidade de estabelecer a arquitetura da rede a priori, denominado Método de Segmentações Geométricas Sucessivas (MSGS). O MSGS agrupa os dados de cada classe em Hipercaixa (HC) onde cada caixa é alinhada de acordo com os eixos de maior distribuição de seu conjunto de pontos. Sendo as caixas linearmente separáveis, um hiperplano de separação é identificado originando um neurônio. Caso não seja possível a separação por um único hiperplano, uma técnica de quebra é aplicada para dividir os dados em classes menores para obter novas HCs. Para cada subdivisão novos neurônios são adicionados à rede. Os resultados dos testes realizados apontam para um método rápido e com alta taxa de sucesso.
This work presents a technique for Artificial Neural Network (ANN) training, able to get the network parameters from the available data for training, without establishing the network architecture a priori, called Successive Geometric Segmentation Method (SGSM). The SGSM groups the data of each class into hyperboxes (HB) aligned in accordance with the largest axis of its points distribution. If the HB are linearly separable, a separating hyperplane may be identified resulting a neuron. If it is not, a segmentation technique is applied to divide the data into smaller classes for new HB. For each subdivision new neurons are added to the network. The tests show a rapid method with high success rate.
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Klavetter, James Jay. "The observed chaotic rotation of Hyperion." Thesis, Massachusetts Institute of Technology, 1989. http://hdl.handle.net/1721.1/54331.
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Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 1989.Includes bibliographical references (leaves 65-68).
by James Jay Klavetter.
Sc.D.
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Navarro, Aliste Daniela. "Miltonic influence in John Keats: creative process of reshaping myths in Hyperion and The fall of Hyperion: a dream." Tesis, Universidad de Chile, 2016. http://repositorio.uchile.cl/handle/2250/137777.
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Heikkilä, Annele. "Studies of Light Hyperon Decay Parameters." Thesis, Uppsala universitet, Kärnfysik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-388602.
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A basic assumption in fundamental physics is that equal amounts of matter and antimatter were created after the Big Bang. When particles and antiparticles collide, they annihilate, i.e. disappear and produce photons. Nevertheless, the universe consists mainly of matter today. To explain why all matter did not disappear, violation of CP symmetry beyond the Standard Model is required. CP symmetry means that the laws of physics are the same if particles are interchanged with antiparticles and spatial coordinates of all particles are mirrored. CP symmetry is relatively poorly tested in baryon decays. A new method to study CP symmetry in hyperon-antihyperon pairs has been developed at Uppsala University. Hyperons are baryons with one or more strange quarks. The method allows determining the decay asymmetry parameters of the hyperon and antihyperon separately if the hyperon-antihyperon pair is polarized. If any significant difference between the magnitudes of these parameters is found, the process is CP violating. The particle physics experiment BESIII in China is a suitable experiment to conduct this kind of measurements because it is a high precision experiment and has collected large data samples of hyperon-antihyperon pairs. The goal of this project was to study statistical precisions of the physics parameters that can be obtained with the new method in cases of J/ψ meson decaying into ΛΛ, Σ+Σ− and Σ0Σ0. High statistical precision is required to detect CP violation, because CP violating processes are, if they exist, expected to be rare. The main focus was to study the process e+e− → J/ψ → Σ0Σ0 → ΛγΛγ → pπ−γpπ+γ. In this process, CP symmetry can be tested in two decay processes: electromagnetic decay Σ0 → Λγ and weak decay Λ → pπ−. Only the asymmetry parameter of Λ → pπ− was studied. The study served as a validity check of the new method and ongoing analyses at BESIII. The statistical precision was studied by simulations: Monte Carlo data samples were created and then a maximum-log-likelihood fit was applied to the samples. An important component when determining the asymmetry parameters turned out to be the relative phase ∆φJ/ψ. The relative phase is one of the parameters used for determining the relation between the electric and magnetic form factors. ∆φJ/ψ is also related to the polarization of the hyperon-antihyperon pair. The study showed that the value of ∆φJ/ψ has a large impact on the uncertainties of the hyperon and antihyperon asymmetry parameters. A low value of ∆φJ/ψ resulted in high uncertainties and strong correlations between the asymmetry parameters. The formalism is different for different processes, which affects the uncertainties as well. The formalism used for the Σ0Σ0 process gives poorer parameter precision of the asymmetry parameter related to the Λ → pπ− decay than the formalism used for the ΛΛ process. Therefore, the ΛΛ process is a much more suitable process for CP studies of the Λ → pπ− decay.Ett grundantagande inom den fundamentala fysiken är att lika stora mängder av materia och antimateria skapades efter Big Bang. När partiklar och antipartiklar kolliderar, annihilerar de, dvs försvinner och producerar fotoner. Trots detta består dagens universum huvudsakligen av materia. För att förklara varför all materia inte försvann krävs ett brott mot CP-symmetrin bakom standardmodellen. CP-symmetrin innebär att fysikens lagar är desamma om man byter partiklar mot antipartiklar och speglar partikelns rumsliga koordinater. CP-symmetri i baryonsönderfall är relativt dåligt testad. En ny metod för att studera CP-symmetrin har utvecklats vid Uppsala universitet för hyperon-antihyperon par. Hyperoner är baryoner med en eller fler särkvarkar. Metoden gör det möjligt att bestämma asymmetriparametrar hos hyperon- och antihyperonsönderfall separat om hyperonantihyperonparet är polariserat. Om en signifikant skillnad mellan värden av dessa parametrar upptäcks, är processen CP-brytande. Partikelfysikexperimentet BESIII i Kina är ett lämpligt experiment för sådana här mätningar eftersom det är ett högpresicionsexperiment och har dessutom samlat in stora mängder data av hyperon-antihyperonpar. Målet för detta projekt har varit att studera de statistiska precisioner av fysikparametrar som kan nås när man använder den nya metoden i de fall där J/ψ mesonen sönderfaller till ΛΛ, Σ+Σ− och Σ0Σ0. Hög statistisk precision behövs för att upptäcka CP-brott, eftersom CP-brytande processer, om de existerar, är relativt sällsynta. Huvudfokuset var att studera processen e+e− → J/ψ → Σ0Σ0 → ΛγΛγ → pπ−γpπ+γ. I denna process kan CP-symmetri testas för två sönderfallsprocesser: det elektromagnetiska sönderfallet Σ0 → Λγ och det svaga sönderfallet Λ → pπ−. I denna rapport studerades bara asymmetriparametrarna av Λ → pπ−. Detta arbete har fungerat som validitetskontroll av den nya metoden och pågående analyser på BESIII. Den statistiska precisionen undersöktes med simuleringar: Monte Carlo datamängder skapades och sedan en maximum-log-likelihood-anpassning av datan genomfördes. En viktig komponent i bestämningen av asymmetriparametrarna visade sig vara den relativa fasen, ∆φJ/ψ. Den relativa fasen är en av de parametrar som används för att bestämma relationen mellan de elektriska och magnetiska formfaktorer. ∆φJ/ψ är också relaterad till hyperonens hyperon-antihyperonparets polarisation. I forskningsprojektet visades att ∆φJ/ψ har en stor inverkan på osäkerheterna av hyperon- och antihyperonasymmetriparametrarna. Ett lågt värde av ∆φJ/ψ resulterade i stora osäkerheter och starka korrelationer mellan asymmetriparametrarna. Formalismen är annorlunda för olika processer, vilket också påverkar osäkerheterna. Formalismen som används för Σ0Σ0-processen ger sämre parameterprecision av asymmetriparametern kopplad till sönderfallet Λ → pπ− än formalismen som används för ΛΛ-processen. Därför är ΛΛ-processen en mycket lämpligare process för att testa CP-symmetrin i Λ → pπ− sönderfallet.
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Hjelm, Alexandra. "Patienters upplevelser av att behandlas med hyperbar oxygen." Thesis, Halmstad University, School of Social and Health Sciences (HOS), 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-1205.
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I denna litteraturstudie granskades 4 vetenskapliga artiklar med syfte att undersöka patienters upplevelser av hyperbar oxygenbehandling (HBO behandling) för att lyfta fram vad man som omvårdnadspersonal bör ha i åtanke inför initiala behandlingar. HBO behandling är en behandlingsmetod där koncentrerad oxygen administreras till patienter. Behandling med HBO får ofta pågå under längre tid för att uppnå läkande effekter i exempelvis fall av hypoxiska svårläkta sår. Ett av de initiala problem som kan ge obehagskänslor är att behandlingen tar plats i tryckkammare, vilket för många är en främmande miljö. Flertalet patienter har av denna anledning valt att avstå ifrån behandling. Inför behandling är även oro vanligt hos omkring hälften av tillfrågade patienter. Väl under behandling beskrivs tristess och ovissheten av behandlingens resultat som problem. Fortsatta studier om HBO behandling skulle kunna öka kunskapen om patienters upplevelser och eventuell oro. Denna kunskap skulle i sin tur omvårdnadspersonalen kunna använda för att genom omvårdnadshandling minska eventuella obehag av HBO behandling.
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Böcker, Matthias. "Messung der transversalen L-Polarisation [Lambda-Polarisation] mit dem HERA-B-Detektor." [S.l. : s.n.], 2004. http://deposit.ddb.de/cgi-bin/dokserv?idn=971196591.
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Wendisch, Christian. "Hyperon-Produktion und -Polarisation in der Reaktion p (3,5 GeV) + Nb mit HADES." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-158395.
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Zur Erforschung des Verhaltens der Kernmaterie wurde mit dem Dielektronen-Spektrometer HADES am GSI Helmholtzzentrum für Schwerionenforschung in Darmstadt unter anderem die Reaktion p + Nb bei 3,5 GeV kinetischer Strahlenergie untersucht. Obwohl HADES primär für den Nachweis seltener leptonischer Zerfälle der Vektormesonen ρ, ω und φ konzipiert wurde, eignet sich das Spektrometer aufgrund seiner präzisen Spurrekonstruktion auch für die Untersuchung von hadronischen Kanälen. Zum Studium der Strangeness-Signaturen in der Reaktion p + Nb wird in dieser Arbeit der im Jahr 2008 aufgezeichnete Datensatz von ca. 4,2 Milliarden Kollisionen hinsichtlich der Produktion und der dabei auftretenden Polarisation von Λ-Hyperonen untersucht. Die polarisierte Produktion von Hyperonen in Kernreaktionen mit unpolarisierten Ausgangsteilchen wurde entgegen den theoretischen Erwartungen erstmals 1976 beobachtet und fand bis heute keine allgemein akzeptierte und alle beobachteten Abhängigkeiten umfassende Erklärung auf Grundlage der starken Wechselwirkung. Es werden zunächst die theoretischen Modelle der Hyperonpolarisation diskutiert und der experimentelle Zugang erklärt. Dieser gelingt über den schwachen Zerfall des Λ-Hyperons, der als natürliches Polarimeter wirkt und somit insbesondere in Reaktionen mit unpolarisierten Nukleonen ein ideales Instrument zur Untersuchung der Polarisation darstellt. Aufgrund der großen Raumwinkelabdeckung ermöglicht HADES, Λ-Hyperonen in einem weiten Phasenraumbereich zu rekonstruieren, sodass deren Produktionsrate und Polarisation in Abhängigkeit der Observablen Transversalimpuls pt und Rapidität y analysiert werden. Aus insgesamt 1,1 Millionen rekonstruierten Λ-Hyperonen werden nach der Korrektur bezüglich der Detektorakzeptanz und -effizienz transversale Massenspektren extrahiert. Deren inverser Steigungsparameter TB (y) nimmt ein Maximum von rund 90 MeV bei y = 1, d.h. unterhalb der Schwerpunktsrapidität im Nukleon-Nukleon-Stoß (ycm = 1,12), an und fällt zu kleinen Rapiditäten deutlich schneller ab als für Teilchen im thermischen Gleichgewicht. Die Λ-Rapiditätsdichte zeigt eine asymmetrische Verteilung, die aufgrund von Mehrfachstreuung der Λ-Hyperonen hauptsächlich mit Kern-Nukleonen deutlich zur Targetrapidität verschoben ist und mit steigender Rapidität > 0,3 stark abnimmt. Auf den vollständigen Phasenraum extrapoliert, erfüllt die Produktionsrate von 0,018 ± 0,004 Λ-0 Hyperons je Ereignis, verbunden mit der Multiplizität von Ks -Mesonen und den mittels Transportmodell abgeleiteten Produktionsverhältnissen zu den übrigen Kaonen und Hyperonen, die Strangeness-Erhaltung im Mittel der gemessenen Kollisionen. Darüber hinaus zeigt das Λ-Hyperon eine signifikant negative Polarisation relativ zur Normalen seiner Produktionsebene, die über den verfügbaren Phasenraum gemittelt Px = (−10,6 ± 1,3) % beträgt und deren Betrag mit steigendem Transversalimpuls entsprechend Px (pt ) = (−0,19 ± 0,02) (GeV/c)−1 pt linear zunimmt. Die Ergebnisse bezüglich der Λ-Polarisation und Phasenraumverteilung werden mit denen anderer Experimente ähnlicher Stoßsysteme verglichen und im Rahmen von systematischen Untersuchungen mit Transportmodellen interpretiert, um Details zur Dynamik der Hyperon-Produktion in Proton-Kern-Reaktionen abzuleiten. Derzeit verfügbare Versionen der GiBUU- und UrQMD-Modelle können die experimentellen Verteilungen im Phasenraum jedoch nicht hinreichend reproduzieren. Mit der Rekonstruktion von Ξ− -Hyperonen und φ-Mesonen wird ein Ausblick auf weiterführende Studien zur Strangeness-Produktion in Nukleon-Kern-Stößen gegebenWith the dielectron spectrometer HADES, located at the GSI Helmholtzzentrum für Schwerionenforschung in Darmstadt, p + Nb reactions at a kinetic beam energy of 3.5 GeV were measured to study the behavior of nuclear matter. Although primarily designed for the detection of rare leptonic decays of the light vector mesons ρ, ω and φ, the spectrometer renders itself very well suited for the investigation of hadrons, due to its excellent tracking capability. This thesis presents results of the production and polarization of strange Λ hyperons in about 4.2 billion reactions of p + Nb recorded in 2008. In contrast to theoretical expectations, the polarized production of hyperons was observed in 1976 for the first time in nuclear reactions with unpolarized beams. Based on the fundamental properties of strong interaction, to date no single explanation exists describing all dependencies of the observed hyperon polarization. Therefore, common theoretical models of hyperon polarization are introduced. Acting as a natural polarimeter, the Λ hyperon represents an excellent tool to study the phenomenon of hyperon polarization especially in reactions with unpolarized beams and targets. Hence, the experimental technique for extracting the polarization using the weak decay of the Λ hyperon is explained. Due to a large solid angle coverage, HADES allows for the reconstruction of hadrons within a wide phase space range. Consequently, a double-differential analysis of the polarization and production probability as a function of transverse momentum pt and rapidity y is performed. In total, 1.1 million Λ hyperons are reconstructed and corrected for detector acceptance and efficiency. The inverse slope parameter TB is extracted from transverse mass spectra. Its rapidity dependence TB (y) shows a maximum of 90 MeV at y = 1, i.e. below the center-of-mass rapidity of the nucleon-nucleon collision ycm = 1.12, and a stronger decrease to lower rapidities than particles in thermal equilibrium. The Λ rapidity density shows an asymmetric distribution, shifted towards target rapidity, which is probably caused by multiple scattering on target nucleons. Extrapolated to the full phase space, the total multiplicity of 0.018 ± 0.004 Λ hyperons per event satisfies strangeness conservati- 0 on on average. For that purpose, the Ks production rate from another analysis and ratios to the other, unmeasured, strange hadrons, derived from transport simulations, are taken into account. Furthermore, the Λ hyperon shows a significant negative polarization perpendicular to its production plane, which amounts to Px = (−10.6 ± 1.3) % averaged over the phase space accessible to HADES. The measured Λ polarization increases almost linearly with increasing transverse momentum pt , according to Px (pt ) = (−0.19 ± 0.02) (GeV/c)−1 pt . In order to spot details on the dynamics of hyperon production in proton-nucleus reactions, the results on Λ polarization and phase space distribution are compared to those of similar reactions. Additionally, a systematic investigation with transport model simulations is performed. The experimental distributions can not be reproduced sufficiently well by the presently available GiBUU and URQMD models. Moreover, an outlook on further studies of strangeness production in nucleon-nucleus collisions by reconstruction of Ξ− hyperons and φ mesons is given
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Fabbri, Alessandro. "Uso di immagini iperspettrali Hyperion nell'analisi di acque lacustri." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2010. http://amslaurea.unibo.it/918/.
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Liu, Michael Kaiping. "Beamforming performance enhancement by adaptive hyperbola array shape estimation." Thesis, Massachusetts Institute of Technology, 2020. https://hdl.handle.net/1721.1/127044.
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Thesis: Nav. E., Massachusetts Institute of Technology, Department of Mechanical Engineering, May, 2020Thesis: S.M. in Engineering and Management, Massachusetts Institute of Technology, System Design and Management Program, May, 2020
Cataloged from the official PDF of thesis.
Includes bibliographical references (pages 107-112).
Analysis of U.S. Navy Ice Exercise 2016 (ICEX16) data, through a collaboration with MIT Lincoln Laboratory, demonstrated that towed array curvature commonly exhibited heading differences up to 100° and never maintained heading differences less than 30° between the forward compass and the aft compass. These deviations reflected a disparity from the underlying assumption that the towed array remained rigid with no deviations from a rigid, straight-line configuration. Using lessons learned from ICEX16, a field experiment in Massachusetts Bay 2019 (FEX19) tested whether a hexagonal search pattern would sufficiently address the curvature concern, thereby, validate the underlying rigid, straight-line beamformer assumption more commonly used. Results from the experiment showed that a hexagonal search pattern maintained a heading differences of less than 4° within 79 seconds of an initiation of a 60° maneuver.
This was a marked improvement when compared to ICEX16's vehicle maneuvers, which never maintained a heading difference of less than 30°. Even with this improvement in FEX19, 39.6% of the acoustic data was collected when the towed array did not meet the straight-line assumption. Use of the hexagonal search pattern, in two instances during U.S. Navy Ice Exercise 2020 (ICEX20), showed that 45.1% and 27.1% of the collected acoustic data did not meet the towed-array straight-line assumption. Although this realization will influence operators to minimize maneuvers that introduce significant deviations from the underlying beamforming model, field experiments often call for sharper maneuvers. This realization spurred the development of a beamformer that modeled towed array curvature using headings, effectively tangential slopes, at either end of the hydrophone portion of the towed array with a known fixed length to predict how the towed array bends.
Analysis of FEX19 showed that the hyperbola-shaped beamformer output aligned to GPS heading data over 30% of the experimental window compared to less than 10% for the straight-line beamformer. This improvement held true even when the towed array had little or no curvature.
by Michael Kaiping Liu.
Nav. E.
S.M. in Engineering and Management
Nav.E. Massachusetts Institute of Technology, Department of Mechanical Engineering
S.M.inEngineeringandManagement Massachusetts Institute of Technology, System Design and Management Program
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Veerasamy, Saravanan. "Valdiation of BaBar tracking software using lambda hyperon." Thesis, University of Iowa, 2007. http://ir.uiowa.edu/etd/141.
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Wolpers, Martin. "Entwicklung und Implementierung eines modellgestützten Datenrepositories das KBS-Hyperbook-System /." [S.l. : s.n.], 2001. http://deposit.ddb.de/cgi-bin/dokserv?idn=963909444.
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Sweetland, Lee A. "Adsorption of organic micropollutants from water using Hypersol-Macronet polymers." Thesis, Loughborough University, 1997. https://dspace.lboro.ac.uk/2134/12442.
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Hypersol-Macronet™ polymers have been evaluated for the adsorption of organic pollutants from aqueous solution. The adsorption performance of the polymers was compared with a commercial activated carbon, Chemviron F -400. Investigation into the physical structure of the adsorbents was performed using microscopy and the adsorption of nitrogen at liquid nitrogen temperatures. A critical analysis of the adsorption isotherm data reduction models is given. The polymers possess a bimodal pore size distribution of micropores, approximately l3A in diameter, and macropores, greater than 200A. The surface functionality of the Macronets, determined by diffuse reflectance IR, 13C NMR and X-ray photoelectron spectroscopy, is presented. Elemental analysis and direct titration techniques were also investigated. Relatively high concentrations of oxygen containing functional groups were observed on the polymers, attributed to ethers, alcohols and ketones formed during polymer production. Adsorption isotherms are given for the removal of phenol and three chlorophenols substituted in the ortho, meta and para position. The greater hydrophobicity of the chlorinated phenols resulted in stronger interaction energies and larger adsorption capacities. Batch kinetic data for the above adsorbates was modelled using the homogeneous surface diffusion correlations. Analytical techniques were developed and validated for the determination of trace levels (0.1 parts per billion) of five pesticides; atrazine, simazine, isoproturon, diuron and chlorotoluron. Single and multi-component adsorption isotherms are presented for trace concentrations of pesticides in aqueous solution. Mini-column breakthrough curves are presented for MN-200 and F-400. Selectivity of the polymers for the various pesticides was explained by differences in molecular size and the hydrophobicity of the adsorbates. The primary adsorption mechanism is hydrophobic interaction enhanced by hydrogen bonding. The negative influence of natural organic matter (NOM) on the removal of pesticides was investigated using batch and column techniques. The uptake of NOM on activated carbon is much greater than that on MN-200. Total regeneration ofMN-200 using a variety of organic solvents was achieved for high and low solid phase concentrations of pesticides. Regeneration of F-400 was ineffective. The breakthrough point of a regenerated mini-column containing MN-200 was identical to the virgin polymer data. The potential commercial application of the resin for the purification of drinking water is discussed.
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Naeve, Trent Phillip. "Conics in the hyperbolic plane." CSUSB ScholarWorks, 2007. https://scholarworks.lib.csusb.edu/etd-project/3075.
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An affine transformation such as T(P)=Q is a locus of an affine conic. Any affine conic can be produced from this incidence construction. The affine type of conic (ellipse, parabola, hyperbola) is determined by the invariants of T, the determinant and trace of its linear part. The purpose of this thesis is to obtain a corresponding classification in the hyperbolic plane of conics defined by this construction.
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Thomé, Erik. "Multi-Strange and Charmed Antihyperon-Hyperon Physics for PANDA." Doctoral thesis, Uppsala universitet, Kärnfysik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-182450.
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The prospects of studying multi-strange and charmed antihyperon-hyperon physics and CP violation in hyperon decays in the upcoming PANDA experiment at FAIR, Germany, have been studied in this thesis. The angular dependence on polarisation parameters in the decay of the spin 3/2 Omega hyperon was calculated using the density matrix formalism. Expressions for the angular distributions in the Ω -> ΛK and the subsequent Λ -> pπ decays were derived. Simulations were performed for the pbar p -> Ξ+ Ξ-, pbar p -> Ω+Ω- and pbar p -> Λc-Λc+ reactions. Special attention was given to the reconstruction of spin variables. It is shown that PANDA will register tens of events per second for the pbar p -> Ξ+Ξ- reaction. This should be compared to the previously existing data of a handfull of events. For the other two reactions the event rates will be lower, but still reasonably high. This will be the first measurements of these reactions. It is shown that spin variables can be reconstructed in all three reactions for all production angles of the hyperons. Simulations concerning the possibility to measure CP violation parameters in hyperon decays were also made for the reactions pbar p- > Λbar Λ and pbar p -> Ξ+Ξ-. It was found that false signals from detector asymmetries disappears if no particle identification criterium is used and the analysis is restricted to events were the hyperon decays occur close to the beam axis. The effect of the magnetic field in the PANDA detector on the measurement of hyperon spin variables was investigated for the case of pbar p -> Λbar Λ. The effect was observed to be small for polarisation and negligible for spin correlations.
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Barton, Robert Allan. "Multi-strange hyperon production in relativistic heavy -ion collisions." Thesis, University of Birmingham, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.367744.
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Cooke, Ashley Noel. "Lattice QCD study of octet hyperon semi-leptonic decays." Thesis, University of Edinburgh, 2014. http://hdl.handle.net/1842/9647.
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We present a calculation of vector and axial-vector form factors for each of the octet hyperon semi-leptonic transition matrix elements by using the techniques of lattice QCD where simulations were performed with Nf = 2 + 1 flavours of dynamical O(a)-improved Wilson fermions. We also study the electromagnetic form factors, axial charges and other properties of octet baryons. Errors due to extrapolation to zero transferred momentum are reduced by applying a twist to the boundary conditions on the lattice. Our form factor results compare favourably with experiment and other lattice QCD determinations. By considering an expansion about the SU(3)-flavour symmetric limit we seek to investigate and quantify the symmetry breaking effects in these matrix elements due to the mass splitting between the strange and light quarks. We find good agreement with the Ademollo-Gatto theorem for the vector form factor, a measurable amount of breaking in the axial-vector form factor and significant effects in the weak magnetism form factor. Knowledge of the parameterisation of SU(3)-flavour symmetry breaking allows for a series of constrained fits to be made to the form factor results which are used to arrive at a 'baryonic' estimation of the Cabibbo-Kobayashi-Maskawa matrix element |Vus|.
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Moosbrugger, Ulrich. "Messung der semileptonischen Q0-Zerfälle [Xi-0-Zerfälle] mit dem NA48/1-Detektor." [S.l. : s.n.], 2005. http://deposit.ddb.de/cgi-bin/dokserv?idn=976129868.
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Kutsche, Ralf. "Untersuchungen der In-Medium-Eigenschaften von K0S-Mesonen und L-Hyperonen [Lambda-Hyperonen] an der Produktionsschwelle." [S.l. : s.n.], 1999. http://elib.tu-darmstadt.de/diss/000039/kutsche.pdf.
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Karsch, Leonhard. "Untersuchungen zu den Reaktionen pp n K + Sigma + und pp p K 0 Sigma +." [S.l. : s.n.], 2005. http://www.bsz-bw.de/cgi-bin/xvms.cgi?SWB11947673.
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Stadter, Andrea. "Hyperion to a satyr : "Hamlet" im Kontext zeitgenössischer Rachetragödien 1589-1603 /." Heidelberg : C. Winter, 1989. http://catalogue.bnf.fr/ark:/12148/cb35561280f.
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Dons, Erlend M. "Dissonansens oppløsning : En lesning av Friedrich Hölderlins Hyperion og dens foreningsfilosofiske impliksjoner." Thesis, Norges teknisk-naturvitenskapelige universitet, Filosofisk institutt, 2009. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-6659.
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Crosetto, John B. "Hölderlin's skeptical horizon : negation and the renunciation of dialectical production in Hyperion /." Thesis, Connect to this title online; UW restricted, 1996. http://hdl.handle.net/1773/6626.
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Souza, Alana Almeida de. "Estudo de fitofisionomias de Cerrado com dados do sensor Hyperion-EO-1." Instituto Nacional de Pesquisas Espaciais, 2009. http://urlib.net/sid.inpe.br/mtc-m18@80/2009/03.24.13.43.
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O estudo das fitofisionomias de Cerrado via sensoriamento remoto constitui-se de um constante desafio investigativo em razão da diversidade florística e estrutural existente, das variações fenológicas perante o regime de chuvas, de sua inter-relação com outros biomas nos contatos sutis e, ainda, pela ocorrência de queimadas e seus efeitos. Essas características tornam as tipologias muitas vezes indistinguíveis em imagens multiespectrais. Nesse sentido, o advento de sensores imageadores hiperespectrais, por adquirirem imagens em um grande número de bandas estreitas e contíguas no espectro eletromagnético, constitui uma nova possibilidade para o estudo desse bioma. Assim, o presente estudo objetivou a utilização de dados hiperespectrais do sensor Hyperion/ EO-1 para a análise espectral, estimativa de parâmetros biofísicos e para a discriminação de fitofisionomias do bioma Cerrado na região de Pirenópolis (GO). As fitofisionomias estudadas foram: Mata Seca Semidecídua, Cerradão, Cerrado denso, Cerrado típico, Cerrado ralo, Cerrado rupestre, Campo Sujo e Campo Limpo. Inicialmente, as fitofisionomias foram caracterizadas florística e estruturalmente em campo. A análise espectral das fitofisionomias foi feita com base na técnica por componentes principais e na inspeção visual de espectros. A estimativa dos parâmetros biofísicos (porcentagem de cobertura do dossel e área basal) se baseou na reflectância das bandas, nos índices de vegetação e em todas as possíveis razões de bandas calculadas dos dados do Hyperion como variáveis independentes em modelos de regressão simples. Para a discriminação das fitofisionomias foram testados três classificadores: Support Vector Machine (SVM), Máxima Verossimilhança (MAXVER) e Spectral Angle Mapper (SAM). Os resultados obtidos permitiram concluir que a similaridade estrutural das fitofisionomias se refletiu na similaridade espectral das mesmas e na confusão das classes nas classificações. A banda em 680 nm, associada com a absorção pela clorofila, foi a que apresentou melhores correlações com a área basal (R^2 = 0,63) e com a porcentagem de cobertura do dossel (R^2 = 0,91). Contudo, as transformações espectrais (índices de vegetação e razões de bandas) apresentaram melhores resultados (R^2 ≥ 0,75). Dentre as transformações espectrais que se mostraram importantes na estimativa dos parâmetros biofísicos analisados, estão as relacionadas à borda vermelha, aos pigmentos foliares e ao teor de água das folhas. A classificação SVM linear foi a que apresentou melhores resultados na discriminação das fitofisionomias, com 59,90% dos pixels corretamente classificados. As classes que foram mais bem discriminadas foram Mata Seca, Cerradão, Cerrado denso e Cerrado rupestre. As classes Campo Sujo, Campo Limpo e Cerrado ralo não tiveram boa separabilidade entre elas com nenhuma das técnicas de classificação testadas.The study of the Brazilian savanna physiognomies (Cerrado) using remote sensing data is still a challenge due to floristic and structural diversity, variation in phenological response to precipitation, relationships with other biomes in the transition zones, and to fire and resultant effects. Because of these factors, some physiognomies are not separable in multispectral images. In this context, the advent of hyperspectral remote sensing, with imaging spectrometers that acquire images in a great number of contiguous and narrow bands in the electromagnetic spectrum, provides new possibilities for the study of this biome. The objective of this investigation was to use hyperspectral Hyperion/EO-1 data for spectral analysis, biophysical parameter estimates and for the discrimination of the Cerrado physiognomies in a study area located in the vicinity of Pirenópolis (GO). The studied physiognomies were: Mata Seca Semidecídua, Cerradão, Cerrado denso, Cerrado típico, Cerrado ralo, Cerrado rupestre, Campo Sujo and Campo Limpo. Field survey for floristic and structural characterization was performed. Spectral analysis included principal components and inspection of pixel spectra. Simple linear regression was applied to band reflectance values, vegetation indices and all possible Hyperion reflectance ratios to estimate biophysical parameters (% canopy cover and basal area). Support Vector Machine (SVM), Maximum Likelihood and the Spectral Angle Mapper (SAM) classification techniques were tested for the discrimination of the physiognomies. Results showed that the structural similarity of the physiognomies produced an equivalent spectral pattern, which explained misclassification of some classes. The chlorophyll red band at 680 nm presented the best correlations with basal area (R^2 = 0.63) and with % canopy cover (R^2= 0.91). However, spectral transformations (narrow band vegetation indices and reflectance ratios) showed better results (R^2 ≥ 0.75). Among the most important spectral transformations for biophysical parameters estimates, vegetation indices associated with the red edge, leaf pigments and leaf water content presented the best results. Linear SVM was the best classification technique with overall classification accuracy of 59.90%. Mata Seca, Cerradão, Cerrado denso and Cerrado rupestre were discriminated. On the other hand, Campo Sujo, Campo Limpo and Cerrado ralo did not present good discrimination to each other with the three tested classification techniques.
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Mikaelsson, Moa. "Jämförelse av klassisk inhalationsterapi, hyperbar oxygenterapi och övermättad syrelösning vid akut hjärtinfarkt." Thesis, Umeå universitet, Farmakologi, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-148563.
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Khurshid, Khawaja Shahid. "Estimation and mapping of wheat crop chlorophyll content using hyperion hyperspectral data." Thesis, University of Ottawa (Canada), 2004. http://hdl.handle.net/10393/26676.
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The estimation of chlorophyll content is an essential biochemical parameter to track the main developmental stages and yield of cereals relevant for precision agriculture. Traditional techniques for chlorophyll content measurements are time consuming, expensive and laborious. Measurements at field level have proven to be a good alternative, but their use is limited due to extensive sampling designs and techniques. Several spectral chlorophyll indices have been developed to estimate chlorophyll content both at the leaf and canopy level using remote sensing data. A methodology of using spectral chlorophyll indices to estimate chlorophyll content from laboratory and satellite hyperspectral data was carried out in this study for wheat crops. The application of this technique under agricultural field conditions has been very limited and not rigorously validated for wheat crops. The main objective of this study is to validate the chlorophyll content estimation using spectral chlorophyll indices, and to examine the potential for chlorophyll content estimation using hyperspectral remote sensing data in the context of precision agriculture. (Abstract shortened by UMI.)
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Gabrielyan, Marianna. "Measurement of the Induced Polarization of Lambda(1116) in Kaon Electroproduction with CLAS." FIU Digital Commons, 2012. http://digitalcommons.fiu.edu/etd/619.
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The CLAS Collaboration is using the p(e, e′ K+ p)π- reaction to perform a measurement of the induced polarization of the electroproduced Λ(1116). The parity-violating weak decay of the Λ into pπ- (64%) allows extraction of the recoil polarization of the Λ. The present study uses the CEBAF Large Acceptance Spectrometer (CLAS) to detect the scattered electron, the kaon, and the decay proton. CLAS allows for a large kinematic acceptance in Q2 (0.8 ≤ Q2 ≤ 3.5 GeV2 ), W (1.6 ≤ W ≤ 3.0 GeV), as well as the kaon scattering angle. In this experiment a 5.499 GeV electron beam was incident upon an unpolarized liquid-hydrogen target. The goal is to map out the kinematic dependencies for this polarization observable to provide new constraints for theoretical models of the electromagnetic production of kaon-hyperon final states. Along with previously published photo- and electroproduction cross sections and polarization observables from CLAS, SAPHIR, and GRAAL, these data are needed in a coupled-channel analysis to identify previously unobserved s-channel resonances.
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Alexandre, Didier. "Hyperon production in p-Pb collisions with ALICE at the LHC." Thesis, University of Birmingham, 2016. http://etheses.bham.ac.uk//id/eprint/6924/.
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This thesis discusses the production of the multi-strange, charged Ξ and Ω baryons in proton-lead (p-Pb) collisions at a centre-of-mass energy of 5.02 TeV. The transverse momentum, P\(_T\), distributions are analysed as a function of event multiplicity. A hydrodynamical model based on statistical physics reproduces the shapes of the multi-strange p\(_T\)spectra, in conjunction with the spectra of lighter hadrons, in high multiplicity data. The good agreement is an indication of collective behaviour by all particles inside a system in thermal equilibrium, consistent with the picture of the build {up of a radially outward expansion due to an initially dense medium. These results are reminiscent of the observations made in lead-lead (Pb-Pb) collisions, which are explained by the formation of a Quark-Gluon Plasma. In addition, the p\(_T\)-integrated yields of the hyperons are reported on, revealing a steady increase as a function of multiplicity. An enhancement with respect to non-strange hadrons is observed, and the Ξ/π and Ω/π ratios in high multiplicity p-Pb data approach those measured in central Pb-Pb collisions. The Ξ/π ratio is comparable with the calculations from a thermal model for strangeness saturation, whereas the Ω/π ratio deviates from that value by 2σ.
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Farooq, Saima. "Antineutrino-induced charge current quasi-elastic neutral hyperon production in ArgoNeuT." Diss., Kansas State University, 2016. http://hdl.handle.net/2097/32845.
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Doctor of PhilosophyDepartment of Physics
Timothy A. Bolton
This dissertation presents the first topological study of the charge current quasi-elastic (CCQE) neutral hyperon production induced by antineutrinos in the ArgoNeuT detector, a liquid argon time projection chamber (LArTPC) at Fermilab, using 1.20 × 10²⁰ protons-on- target (POT), in the NuMI beam operating in the low energy antineutrino mode. The total cross section for the CCQE neutral hyperon production is reported at the mean production energy of 3.42 GeV. The event yield in data is consistent with the predicted cross section, σ = 2.7 × 10−40 cm²: σ(CCQE[subscript Λ0+Σ0] ) = (3.7 ± 1.9(stat.) ± 1.5 (sys.)) × 10⁻⁴⁰ cm². The study sets a 90% confidence level (C.L.) upper limit on the total cross section of CCQE neutral hyperon production: σ(CCQE[subscript Λ0+Σ0] ) < 7.3 ×10⁻⁴⁰ cm² at 90% C.L.
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San, Bekir Taner. "Hyperspectral Image Processing Of Eo-1 Hyperion Data For Lithological And Mineralogical Mapping." Phd thesis, METU, 2008. http://etd.lib.metu.edu.tr/upload/3/12610057/index.pdf.
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Hyperspectral data is a powerful tool for mineral explorations and lithological discriminations. EO1-Hyperion is a space borne hyperspectral system for hyperspectral imaging which is capable of 220 spectral image channels within the range of 400 to 2500 nm wavelengths. It has advantages over
airborne systems such as data cost and coverage area. Although it has many advantages, much more uncertainty exists in application period, of which this uncertainty does exist in all processing stages starting from the data
preparation to the end of analysis stages.
The aim of this thesis is to state the potential use of Hyperion data for lithological and mineralogical discriminations to further develop new hyperspectral image processing approach, and to improve existing preprocessing method in literature.
The proposed algorithm is mainly based on atmospheric corrections and cross track illumination correction of Hyperion data. In order to achieve this, two test sites were selected. Site 1 located on the Central Anatolia, (Ekecek
test site) is used for lithological discrimination and Site 2 located on West Anatolia (Biga test site) is used for mineralogical discrimination. The obtained
results were compared and assessed with the field verifications, spectral measurements and existing spectral libraries.
In the end of the study it is found that when proposed approach is followed hyperspectral data is proven to be a useful tool for mineralogical discrimination in mono minerallic outcrops and valuable for lithological mapping in relatively homogenous un-covered outcrops.
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Ritter, Joshua R. "Recovering Hyperbole: Re-Imagining the Limits of Rhetoric for an Age of Excess." Digital Archive @ GSU, 2010. http://digitalarchive.gsu.edu/communication_diss/22.
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Hyperbole has a varied and contentious history, and its forms and functions are largely ignored and dismissed today. Often misunderstood, hyperbole nevertheless offers critical insights into our understandings of epistemology and ontology that cannot go unexplored. In order to recover and reinvigorate a theory of hyperbole within the field of rhetorical theory and criticism, I explore the history of this critical trope from ancient to modern times. I then offer two functions and one meta-function of hyperbole based on this historical survey: moving through impossibility towards possibility, asserting a lie on the side of truth(s), and re-orienting one’s perspective through disorientation. Derived from a historical survey of hyperbole, these two functions and one meta-function are vital for understanding and constructing a theory of hyperbole that is productive and useful for current theoretical discussion. Using these functions, I offer a variety of examples under the purview of the epideictic and grotesque genres and show how hyperbole might be employed within rhetorical theory and criticism. Overall, this project seeks to respond to the gap that exists within current rhetorical theory regarding hyperbole, to explore why hyperbole is often dismissed as a tropological expression of excess and exaggeration, and to revitalize interest in hyperbole for critical use in areas such as rhetoric, theology, and philosophy.
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Michaelis, Loralea. "Modernity and the problem of disappointment, the political theory of Friedrich Hoelderlin's Hyperion." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp02/NQ28016.pdf.
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Lee, Ju Yeon. "Ryhthmic structure in the music of Jean Guillou Agni-Ignis from Hyperion (1988) /." connect to online resource, 2008. http://digital.library.unt.edu/permalink/meta-dc-9067.
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Thesis (D.M.A.)--University of North Texas, 2008.System requirements: Adobe Acrobat Reader. Accompanied by 4 recitals, recorded June 24, 2002, Jan. 20, 2004, Mar. 29, 2005, and Nov. 30, 2007. Includes bibliographical references (p. 96-99).
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Canavesi, Vanessa. "Aplicação de dados hyperion EO-1 no estudo de plantação de euclalyptus spp." Instituto Nacional de Pesquisas Espaciais (INPE), 2008. http://urlib.net/sid.inpe.br/mtc-m18@80/2008/07.01.14.06.
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A disponibilidade de dados hiperespectrais trouxe expectativas nos meios acadêmicos e empresariais quanto à potencialidade de sua aplicação no setor florestal. O objetivo deste trabalho foi avaliar o potencial e as limitações da aplicação de dados hiperespectrais do sensor Hyperion EO-1 no estudo de plantações de Eucalyptus spp. Para tanto, foram adotadas duas abordagens, sendo uma delas baseada em um processo de classificação digital procurando a identificação de diferentes espécies e a outra abordagem baseada no estabelecimento de correlações entre dados espectrais e volume de madeira, seguido da definição de modelos de regressão linear múltipla como descritores das relações estabelecidas. Nas duas abordagens o efeito do relevo sobre a reflectância dos dosséis de Eucalyptus spp. foi levado em consideração. Os dados Hyperio EO-1 foram convertidos para valores de FRB de superfície, os quais passaram a constituir os dados fundamentais de todo o trabalho. A área de estudo contemplou os plantios do gênero Eucalyptus spp., pertencentes à empresa Votorantim Celulose e Papel, localizados no município de Capão Bonito-SP. Foram utilizados dados do sensor Hyperion e foram simulados dados dos sensores TM e HRV, presentes nos satélites Landsat e Spot, respectivamente, a partir dos dados Hyperion. Nas classificações ficou evidente o efeito da arquitetura do dossel na diferenciação das idades dos plantios, em detrimento de uma desejada individualização de espécies. Essa diferenciação foi facilitada quando a anisotropia dos plantios era levada em consideração. No estabelecimento das relações com volume de madeira, a possibilidade de cálculo de índices de vegetação mediante o emprego de dados hiperespectrais implicou em modelos com maiores valores de R2, comprovando maior potencial de aplicação em avaliações do gênero.The access to orbital hyperspectral data has offered new perspectives to both academic and corporative sectors in terms of their potential to solve some demands in the forestry science. The main objective here was to evaluate the potential and constrains of the hyperspectral data from the Hyperion EO-1 sensor in the Eucalyptus spp. stands study. Two approaches were adopted. The first one was based on a species classification procedure and the second one included evaluations of the relationship between the spectral data and the stand logging. It was defined some multiple linear regression models as descriptors of that relationship. In both approaches the relief effect on the Eucalyptus spp. canopy reflectance was taken into account. The Hyperion EO-1 data were converted to BRF surface values, which were considered the basis of the entire work. The study area was located in Capão Bonito city (São Paulo State, Brazil) and included Eucalyptus spp. stands managed by the Votorantin Papel e Celulose company. Multi-spectral data of TM/Landsat and HRV/SPOT sensors were simulated from the Hyperion EO-1 ones. In the classification evaluation it was evident the canopy architecture effect in the stand age differentiation despite the species identification. This identification has been improved when the vegetation anisotropy was taken into account. In volume x radiometric data relationship evaluation the vegetation indices calculated from the hyperspectral data increase the R2 values that were interpreted as an advantage comparing to the multi-spectral data in this kind of evaluation.
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Lee, Ju Yeon. "Rhythmic structure in the music of Jean Guillou: "Agni-Ignis" from Hyperion (1988)." Thesis, University of North Texas, 2008. https://digital.library.unt.edu/ark:/67531/metadc9067/.
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In 1988, Jean Guillou composed Hyperion on a commission from the French oil company, Société Nationale Elf Aquitaine, to celebrate its discovery of oil. He developed this theme of fire using his imagination, European philosophical concepts, and various myths. As with Messiaen, rhythm becomes a significant element in Guillou's organ music to convey a heightened dramatic story of an exaltation of fire and to represent the fourth movement of "Agni-Ignis." For aspects of rhythmic structure, I developed new methodology to analyze rhythm in six sections of "Agni-Ignis." Guillou uses experimental rhythmic techniques such as rhythmic subdivision, cycling, rhythmic ostinato, durational contrast, and rhythmic crescendo to build the musical structure of the piece. Among them, the primary subdivision of 16th-note groups organizes throughout the piece as a cyclic theme to convey the powerful and vivid mood of fire. This rhythmic group creates many pitch patterns as thematic transformation to provide both rhythmic and harmonic complexities. The two types of rhythmic ostinato, which is variable and invariable type, juxtapose below the manual's skillful rhythm to provide variety and unity. The other notable features of rhythm appear at the border of each section, such as rhythmic crescendo, durational contrast, 32nd-note groupings, rest and fermata to build tension and relaxation. The rhetorical figure of pitch D, which is another "fire theme" in the pitch aspect dominates the core section which has a much slower rhythm with sustained notes. In general, Guillou has been influenced by his predecessors such as his teacher, Messiaen, and Stravinsky. However, he is uniquely suited to explore the limitless possibilities of the organ in a more secular and avant-garde style. The purpose of this study is to give the performer new insight to guide his or her performance.
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Karounou, Eleni. "Removal of endocrine disruptors by activated carbons and Hypersol-Macronet hypercrosslinked polymeric adsorbents." Thesis, Loughborough University, 2004. https://dspace.lboro.ac.uk/2134/7722.
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The normal operation of the endocrine (hormonal) system can be disrupted by a number of man-made and naturally-occurring chemicals, thereby affecting those physiological processes that are under hormonal control. Such substances are called endocrine disrupting compounds (EDCs). The endocrine disruption issue has alarmed the environmental authorities since the substances involved can hinder hormonal processes causing far-reaching effects on reproduction and development in current and future human and wildlife generations. Effects on some species of fish triggered worldwide concern and initiated a research scheme which is being undertaken by various organisations e.g. United States Environmental Protection Agency (USEPA), United Kingdom Environment Agency (UKEA), Oslo and Paris Commission (OSPAR), Japan Environment Agency (JEA) and World Wildlife Fund (WWF) in order to assess the effects (present and potential), point of generation, levels of contamination and exposure limits. The findings showed that most of the oestrogens are produced by humans and animals and get discharged into river streams mainly through sewage effluents. Fish in particular have been found to be affected the most even when the oestrogenic levels in water are very low. The probability of future European legislation to eliminate hormonally active compounds from wastewaters suggests that new and alternative methods should be developed for their removal. In this work, the adsorption of 17ß-oestradiol (E2) and 17a-ethinyl oestradiol (EE2) onto several granular activated carbons and Hypersol-Macronet hypercrosslinked polymers was investigated by batch experiments after a low level detection system had been developed using Gas Chromatography Mass Spectrometry (GC/MS). Equilibrium experiments were carried out for all adsorbents to quantify the sorption capacity for E2 and EE2. For better assessment of the sorbents performance, their physical properties such as surface area, average pore diameter and micropore volume and chemical structure were characterised by N2 adsorption experiments, scanning electron microscopy (SEM), FTIR spectroscopy, elemental analysis, sodium capacity determination, pH titration, proton binding curves and zeta potential measurements. Adsorption isotherm data were fitted to the Langmuir and Freundlich equations. Activated carbons were found to be preferable to Hypersol-Macronet hypercrosslinked polymers for adsorption purposes. The adsorption of oestrogens appears to be controlled by hydrophobic interactions. Kinetic experiments were performed with different size ranges of adsorbents at different concentrations and the results were analysed by a particle diffusion model. It was found that concentration did not seem to influence the kinetics of the oestrogen sorption whereas the particle size of the adsorbents influenced the adsorption rate of both molecules. The particle diffusion model seemed to fit the data collected for the adsorption rate of 17B-oestradiool onto the adsorbents but gave a poor fit for most of the data collected for 17a-ethinyl oestradiol.
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Ambrus, Gergely Bezdek András. "Iterative processes generating dense point sets." Auburn, Ala., 2006. http://repo.lib.auburn.edu/EtdRoot/2006/SPRING/Mathematics_and_Statistics/Thesis/AMBRUS_GERGELY_20.pdf.
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Seyed, Mohammad Gholamzadeh Mahmoudi. "Involutions d'une algèbre de Clifford et isotropie des formes quadratiques et hermitiennes." Besançon, 2004. http://www.theses.fr/2004BESA2020.
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Ce travail de thèse est consacré à l'étude de l'isotropie des formes quadratiques et des formes hermitiennes au moyen des objets algébriques que sont le groupe de Witt, le u-invariant et les algèbres à involution associées à ces formes. D'abord, nous obtenons divers critères, inspirés par des travaux de Bayer Fluckiger, Shapiro et Tignol, pour l'hyperbolicité d'une involution sur une algèbre simple centrale ou une algèbre de Clifford. Ensuite, nous étudions une suite exacte de groupes de Witt due à Parimala, Sridharan et Suresh. Nous décrivons le comportement des applications qui interviennent dans cette suite par rapport à l'isotropie des formes et nous inscrivons cette suite dans un octogone exact de groupes de Witt analogue à celui obtenu par Lewis pour une algèbre de quaternions. A l'aide de cet octogone, nous établissons des relations entre les cardinaux de certains groupes de Witt. Enfin, nous étudions la notion de u-invariant hermitien d'un corps gauche à involution qui généralise la notion classique de u-invariant introduite par Kaplansky. Nous obtenons quelques estimations du u-invariant d'un corps gauche à involution en fonction du u-invariant d'un sous-corps de ce corps stable par l'involution. Nous comparons le u-invariant d'un corps gauche et celui de son centre et fournissons quelques résultats sur les valeurs de cet invariantIn this work we study the isotropy of quadratic and hermitian forms through the Witt group, the u-invariant and the algebras with involution associated to these forms. We obtain several criteria, inspired by the works of Bayer Fluckiger, Shapiro and Tignol, for hyperbolicity of particular involutions of a central simple algebra or a Clifford algebra. We study an exact sequence of Witt groups due to Parimala, Sridharan and Suresh, we determine the behavior of the maps involved in this sequence with respect to isotropy and we embed this sequence in an exact octagon similar to one obtained by Lewis for quaternion algebras. We use this exact octagon to obtain relations between the cardinality of certain Witt groups. We study the notion of hermitian u-invariant analogous to the classical notion of the u-invariant introduced by Kaplansky. We give some estimates of the u-invariant of a division algebra with involution in terms of the u-invariant of the substructures stable under involution by using systems of quadratic forms and exact sequences of Witt groups. We compare the u-invariant of a division algebra with involution and that of its center and we provide some results about the values of this invariant
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Pérez, Andrade Gabriela. "Production of the Σ0-bar hyperon in the PANDA experiment at FAIR." Thesis, Uppsala universitet, Kärnfysik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-375552.
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The PANDA experiment is one of the main pillars of the Facility for Antiproton and Ion Research (FAIR), currently under construction in Darmstadt, Germany. PANDA will be a fixed target experiment designed for the study of non-perturbative phenomena of the strong interaction. Strange hyperon production is governed by m(s) ~ 100 MeV, which corresponds to the confinement domain. Thus, hyperons are suitable probes in this energy region. This work is a simulation study focused on the feasibility of studying the production of Σ0-bar and Λ hyperons in the pbar p -> Σ0-bar Λ reaction with the PANDA detector. A 10^4 events sample simulated at p(beam) = 1.771 GeV/c is used to perform a single-tag (inclusive) and a double-tag (exclusive) event selection. From the former, it is concluded that the single-tag method does not provide with the clean signal required for spin observables extraction. In contrast, exclusive event selection provides with a signal reasonably clean from combinatorial background and completely clean from generic hadronic background events. A signal (Σ0-bar Λ) reconstruction efficiency of ε = 5.3 ± 0.2 % is obtained for exclusive event selection. The corresponding signal to background ratio is S/B(Total) ~ 6 and the significance value is ~ 21. In addition, an exclusive event selection is performed on a 10^4 events sample simulated at p_(beam) = 6 GeV/c. Almost all the generic hadronic background events are removed by the applied selection criteria. At this beam momentum, the obtained signal efficiency is ε = 6.1 ± 0.3%, the signal to total background ratio is S/B(Total) ~ 4 and the significance is ~22. Both efficiencies are smaller compared to a previous simulation study on this channel, but are large enough to enable a study of the exclusive production of the pbar p -> Σ0-bar Λ reaction at PANDA. The difference between the results of this thesis work and the previous work is attributed to the more realistic implementation of the signal production mechanism, as well as the detector and reconstruction algorithms.
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Grape, Sophie. "PWO Crystal Measurements and Simulation Studies of Anti-Hyperon Polarisation for PANDA." Licentiate thesis, Uppsala universitet, Kärnfysik, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-142861.
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The Gesellschaft für Schwerionenforschung (GSI) facility in Darmstadt, Germany, will be upgraded to accommodate a new generation of physics experiments. The future accelerator facility will be called FAIR and one of the experimentsat the site will be PANDA, which aims at performing hadron physics investigations by colliding anti-protons with protons. The licentiate thesis consistsof three sections related to PANDA. The first contains energy resolutionstudies of PbWO4 crystals, the second light yield uniformity studies of PbWO4 crystals and the third reconstruction of the lambda-bar-polarisation in the PANDA experiment. Two measurements of the energy resolution were performed at MAX-Lab in Lund, Sweden, with an array of 3x3 PbWO4 crystals using a tagged photon beam with energies between 19 and 56 MeV. For the April measurement, the crystals were cooled down to -15 degrees C and for the September measurement down to -25 degrees C. The measured relative energy resolution,
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Deamer, F. M. "An investigation into the processes and mechanisms underlying the comprehension of metaphor and hyperbole." Thesis, University College London (University of London), 2013. http://discovery.ucl.ac.uk/1420534/.
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In this thesis I investigate the mechanisms and processes underlying figurative language comprehension. I attempt to determine whether there might be something unique about metaphor due to the interpretation processes involved, or whether metaphoric interpretations are in fact processed in the same way as other non-literal uses of language, such as hyperbole. Various theoretical accounts of figurative language interpretation from different pragmatic and psychological processing models are examined from an empirical perspective as a way of exploring the cognitive basis of their claims. Previous empirical research investigating metaphor comprehension is critically discussed not just from a psychological perspective, but also in relation to pragmatic accounts of figurative language. There is a plethora of past and current theoretical literature on metaphor, which over the last few decades has been discussed in relation to psycholinguistic research investigating metaphor processing. In contrast, despite recent unified pragmatic accounts of figurative language, which posit a unified account of metaphor, hyperbole, and other loose uses, there has been little, if any empirical research looking at hyperbole or other tropes. This leaves us with an important question; can what we know about the processing of metaphor be generalised to other tropes such as hyperbole? With this question in mind, I will present a series of on-line and developmental experiments, aimed at further exploring the processes and mechanisms underlying metaphor comprehension, and directly contrasting the processing of metaphor and hyperbole. The results of these experiments have implications both for psycholinguistic research on non-literal language processing, and for lexical pragmatic accounts of figurative language comprehension, but also for developmental research investigating children’s pragmatic capacities. As well as shedding light on the cognitive processes involved in constructing metaphoric and hyperbolic interpretations, the findings of this thesis give us some indication of the cognitive mechanisms that need to have developed in order to arrive at a non-literal interpretation of an utterance.
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Stiening, Gideon. "Epistolare Subjektivität : das Erzählsystem in Friedrich Hölderlins Briefroman "Hyperion oder der Eremit in Griechenland /." Tübingen : M. Niemeyer, 2005. http://catalogue.bnf.fr/ark:/12148/cb39934406x.
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Haberer, Brigitte. "Sprechen, Schweigen, Schauen : Rede und Blick in Hölderlins "Der Tod des Empedokles" und "Hyperion /." Bonn : Bouvier Verl, 1991. http://catalogue.bnf.fr/ark:/12148/cb356021674.
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Britsch, Markward. "Hyperon production in proton-nucleus collisions at 42 GeV center of mass energy." [S.l. : s.n.], 2003. http://www.bsz-bw.de/cgi-bin/xvms.cgi?SWB10633916.
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Bono, Jason S. "First Time Measurements of Polarization Observables for the Charged Cascade Hyperon in Photoproduction." FIU Digital Commons, 2014. http://digitalcommons.fiu.edu/etd/1520.
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The parity violating weak decay of hyperons offers a valuable means of measuring their polarization, providing insight into the production of strange quarks and the matter they compose. Jefferson Lab’s CLAS collaboration has utilized this property of hyperons, publishing the most precise polarization measurements for the Λ and Σ in both photoproduction and electroproduction to date. In contrast, cascades, which contain two strange quarks, can only be produced through indirect processes and as a result, exhibit low cross sections thus remaining experimentally elusive.
At present, there are two aspects in cascade physics where progress has been minimal: characterizing their production mechanism, which lacks theoretical and experimental developments, and observation of the numerous excited cascade resonances that are required to exist by flavor SU(3)F symmetry. However, CLAS data were collected in 2008 with a luminosity of 68 pb−1 using a circularly polarized photon beam with energies up to 5.45 GeV, incident on a liquid hydrogen target. This dataset is, at present, the world’s largest for meson photoproduction in its energy range and provides a unique opportunity to study cascade physics with polarization measurements.
The current analysis explores hyperon production through the γp → K+K+Ξ− reaction by providing the first ever determination of spin observables P, Cx and Cz for the cascade. Three of our primary goals are to test the only cascade photoproduction model in existence, examine the underlying processes that give rise to hyperon polarization, and to stimulate future theoretical developments while providing constraints for their parameters. Our research is part of a broader program to understand the production of strange quarks and hadrons with strangeness. The remainder of this document discusses the motivation behind such research, the method of data collection, details of their analysis, and the significance of our results.
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Porti, Joan. "Torsion de Reidemeister pour les variétés hyperboliques." Toulouse 3, 1994. http://www.theses.fr/1994TOU30193.
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On etudie une torsion de reidemeister pour les varietes de dimension trois, compactes, orientees et dont l'interieur admet une structure hyperbolique a volume fini. Lorsque la variete est close la representation adjointe de l'holonomie est acyclique, et donc la torsion associee a cette representation est un invariant topologique. Si le bord de la variete est un tore, pour chaque courbe simple fermee du bord on construit une fonction rationnelle sur la variete des caracteres. Les degenerescences euclidiennes des varietes coniques obtenues par chirurgie de dehn sur la variete correspondent a des zeros de cette fonction rationnelle
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Kyllönen, H. (Heini). "”Unelmoija ja runoilija”:taiteilijakuvat ja John Keatsin ja Geoffrey Chaucerin subtekstit Dan Simmonsin romaanissa Hyperion." Master's thesis, University of Oulu, 2014. http://urn.fi/URN:NBN:fi:oulu-201411262012.
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Tässä tutkielmassa tutkimusaiheena on taiteilijakuvat sekä taiteen kuvaaminen Dan Simmonsin tieteisromaanissa Hyperion. Teoreettisena viitekehyksenä on intertekstuaalisuus ja metodina vertaileva lukeminen. Taiteilijakuvia ja taiteen kuvaamista tarkastellaan suhteessa romantiikan ihanteisiin ja näkemyksiin taiteista. Erityisesti Hyperionin taiteilijakuvia peilataan vasten John Keatsin elämää, runoutta ja taidekäsityksiä. John Keatsin elämä ja runous ovat tutkielmassa tärkeä subteksti. Toinen subteksti, jota vasten Hyperionia peilataan, on Geoffrey Chaucerin Canterburyn tarinat.
Dan Simmonsin Hyperion lainaa rakenteensa Geoffrey Chaucerin Canterburyn tarinoilta. Canterburyn tarinoiden tapaan Hyperion muodostuu kehyskertomuksesta ja pyhiinvaellusmatkalaisten kertomista sisäkertomuksista, joiden kerrontavuoro määrätään arvalla. Canterburyn tarinat oli oman aikansa intertekstuaalinen iloittelu, mitä Hyperion edelleen toisintaa. Olen tarkastellut Hyperionin kehyskertomusta ja sisäkertomuksia suhteessa Canterburyn tarinoiden kehyskertomukseen ja sisäkertomuksiin ja löytänyt joitakin vastaavuuksia henkilöhahmojen kuvausten sekä tarinoiden tematiikan suhteen.
John Keatsin runous muodostaa myös olennaisen subtekstin Hyperionissa. Olen tarkastellut Hyperion-romaania erityisesti suhteessa Keatsin runoihin ”Hyperion”, ”The Fall of Hyperion” ja ”Lamia”. Dan Simmonsin romaanit Hyperion ja The Fall of Hyperion käsittelevät samoja aiheita kuin John Keatsin runot ”Hyperion” ja ”The Fall of Hyperion”. Sekä Simmonsin romaanit että Keatsin runot kuvaavat eri valtaryhmittymien välistä sotaa ja sodan seurauksia. Olen yrittänyt myös tavoittaa vastaavuuksia runoissa esiintyvien ja romaanissa esiintyvien tahojen välillä. Tulokset ovat kuitenkin erilaiset ”Hyperion” ja ”The Fall of Hyperion” runojen pohjalta. Olen myös suhteuttanut John Keatsin runoa ”Lamia” Hyperion-romaanin ”Etsivän tarinaan”.
Hyperion-romaanissa piirtyy esiin kaksi erilaista taiteilijakuvausta: unelmoijan ja runoilijan. Jaottelu unelmoijaan ja runoilijaan perustuu John Keatsin runossaan ”The Fall of Hyperion” tekemään jakoon. Unelmoijaa edustaa ”Etsivän tarinassa” esiintyvä kybridi Johnny ja runoilijaa edustaa ”Runoilijan tarinan” kertoja Martin Silenus. John Keats -kybridi Johnny on taiteilijana vasta nupullaan, potentiaalia, joka ei ole vielä toteutunut. Johnny on hauras ja herkkä. Kuitenkin Johnny uneksuu Hyperionin mysteeristä tavalla, joka lähenee olemukseltaan taiteilijuutta. Runoilija Martin Silenus puolestaan on jo juhlittu runoilija. Hän suhtautuu runouteensa vakavasti, jopa pakkomielteisesti. Siinä missä Johnny näkee unia, Silenus kirjoittaa todellisuutta toimien jumalallisen ilmoituksen välikappaleena. Molemmat, unelmoija ja runoilija, heijastavat romantiikan ihanteita, vaikka ovat monessa mielessä toistensa vastakohtia: toinen on potentiaalia — toinen aktualisoitumista, toinen herkkä — toinen rietas. Keskeneräisten ”Hyperion-laulujensa” kautta Silenus vertautuu historialliseen John Keatsiin ja tämän keskeneräisiin runoihin. Molemmat jakavat romantiikan taidekäsitykset ja epäonnistumisen kultin.
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Eck, Bryan D. "A CASE OF RECLAMING RUIN: BEYOND THE HYPE & HYPERBOLE OF NEW YORK’S HIGH LINE." DigitalCommons@CalPoly, 2011. https://digitalcommons.calpoly.edu/theses/568.
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As a result of economic, social, and cultural changes, cities across the country are looking to outdated and abandoned infrastructure for use as public space. The primary objective of this study is to comprehensively examine one such project, the High Line in New York City, to contribute to the body of literature related to urban transformation, reuse, and analogous projects. In this thesis, the High Line was analyzed as a case study and examined in-depth, through an array of data gathering methods. A historical study of the site was conducted through archival research. A typology, and subsequent description, of the key role-player involved with the project was also established through analysis of over 300 newspaper and blog sources. The design and creation process concludes the archival research portion of the study. Subsequently, the designed environment of the High Line was evaluated for its role as public space, measured against established principal elements found in urban design literature. Special attention was paid to the places where the former infrastructural use has been utilized to provide those public space elements. Behavior observations, surveys, and interviews helped determine how the space is used and perceived by its visitors. Research indicated that while the High Line looks different than traditional public space, it contains all the elements crucial to making public spaces successful. Additionally, it was discovered that the High Line influences perceptions of the City of New York, beyond the physical structure of the High Line. The final outcome of this study is a complete narrative portrait of the High Line from the creation and subsequent reuse, the influencing surrounding factors such as cultural context and physical setting, and how the space is actually used and perceived. The narrative informed implications on the utility of the High line model for other cities across looking to create similar reuse projects.