Dissertations / Theses: 'Annihilation e⁺ e⁻'

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Rosquist, Rasmus. "Annihilating the Cartesian Divide : Finding the Inhuman in Jeff VanderMeer's Annihilation." Thesis, Stockholms universitet, Engelska institutionen, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-169642.

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As posthumanist discourse attempts reposition the human as one of many subjects in relation to ecologies and other inhuman agencies, doing away with a Cartesian human exceptionalism is one of the key problems. From Haraway’s naturecultures, positing human culture as one of many, to Colebrook’s discussions of inhuman agencies, what ‘the human’ means to us is the heart of this theoretical field. In this paper I engage with theories within the discourse and posit them against a dialogue with Annihilation by Jeff Vandermeer, as well as with the ideas of George Bataille on how the human separated herself from other animals and in doing so created what we call Humanity. The aim is to find inhuman agencies and bring to light how they act upon the human, but also how perceiving the inhuman is, as Bataille writes, closed to us. What we find through a process and concept of annihilation of Humanity with the human, brought forth from a reading of the Biologist’s relation to the lighthouse and the tower in the novel, is that even though we may be able to perceive the inhuman, we might be always already anthropocentric in this perception. I suggest a reversal of Haraway’s term; culturenatures, as a way to understand this anthropocentric perception, in that just as our culture is borne from nature, other naturecultures are closed to us.

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Anderson, Craig. "Magnetic annihilation and reconnection." Thesis, University of St Andrews, 1994. http://hdl.handle.net/10023/14014.

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This thesis presents several analytical models of magnetic annihilation and reconnection and studies their properties. The models investigated are 1. Steady-state magnetic annihilation. The assumption of straight field lines reduces the resistive, viscous MHD equations to two ordinary differential equations, one for the flow and one for the magnetic field. These equations can be solved exactly (for the case of a simple stagnation-point flow) and asymptotically (for a more general stagnation-point flow). In both cases the reconnection rates can be fast due to advection effects which create large magnetic gradients. 2. Time-dependent magnetic annihilation. The assumption of straight field lines whose strength can vary with time reduces the MHD equations to two partial differential equations, one for the flow and one for the magnetic field. The time-modulated simple stagnation-point flow is shown to be an exact solution and the equation for the magnetic field is then solved on infinite and finite intervals. For the infinite interval the reconnection rates are shown to be dependent on the nature of the advected initial field. Also examined are self-similar solutions and the effect of variation of diffusivity with time. 3. Annihilation in a compressible, inviscid plasma. Here, the assumption of straight field lines and an inviscid, compressible flow reduce the MHD equations to a pair of non-linear coupled partial differential equations. Further assuming that the density only varies in one direction and the flow is of a stagnation-point type allow these equations to be solved approximately analytically and exactly numerically. It is shown that the magnetic field and reconnection rates are the same in both the compressible and incompressible cases and that the density of the plasma is greatest within the current sheet. 4. Steady-state magnetic reconnection. For an incompressible flow the MHD equations can be reduced to two coupled non-linear partial differential equations. These two equations are studied by seeking asymptotic solutions around the annihilation solution and then looking for series solutions to the first-order equations. It is found that the magnetic field always has a magnetic cusp and never possesses an x-type neutral point. 5. Reconnection in a viscous plasma. Assuming that the viscous forces dominate, the induction equation and equation of motion decouple and become linear. The magnetic field is obtained for the case of a simple stagnation-point flow. It is shown that if the inflow magnetic field is taken to be straight then the magnetic field within the region tends towards the annihilation solution as the magnetic Reynolds number increases. 6. Magnetic flipping. A previous ideal model of magnetic flipping is refined so that it becomes an exact solution of the MHD equations. In the refined model the streamlines are straight rather than curved. Assuming straight streamlines, the MHD equations reduce to two linear ordinary differential equations, one for the flow and one for the magnetic field. These are then solved exactly analytically to find a flow containing a viscous boundary layer and a magnetic field that contains an x-type neutral point. The angle between the separatrices of the field is determined by the Reynolds and magnetic Reynolds numbers. It is shown that most of the ohmic heating occurs within the viscous boundary layer.

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Green, D. G. "Positron annihilation on core electrons." Thesis, Queen's University Belfast, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.557607.

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Diagrammatic many-body theory (MBT) is used to calculate the -y-spectra and an- nihilation rates for positrons annihilating on the core electrons of many-electron atoms. Long-range positron-atom and short-range positron-electron correlations are accounted for through the evaluation of the positron Dyson orbital and the true many-body annihilation vertex, which includes the exact electron-positron ladder series. The numerical implementation of the theory proceeds through the employment of a B-spline basis. It is tested through a comprehensive study of positron annihilation in the hydrogen-like ions He ", Li2+, BH and F8+, the ionization energies of which span those typical of the core electrons of many-electron atoms. The scattering phase shifts and normalized annihilation rate parameters Zeff are found to be in excellent agreement with existing sophisticated variational calculations, and -y-spectra are also predicted. , The annihilation ')'-spectra and partial annihilation rates are then calculated for ther- malized positrons annihilating on the core and valence electrons of the noble gas atoms Ar, Kr and Xe. Although stronger for the valence shells, the short-range correlations are found to significantly enhance the -y-spectra of the core subshells. For Ar, Kr and Xe, the core contributions to Zeff are found to be 0,55%, 1.5% and 2.2% respectively, their small values reflecting the difficulty for the positron to probe distances close to the nucleus. However, the core subshells have a broad momentum distribution and they markedly contribute to, and even dominate, the -y-spectra at Doppler energy shifts .2::. 3 ke V. It is found that proper inclusion of the core spectra is crucial in bringing the theoretical spectra into agreement with the experiment across the full range of Doppler energy shifts. State-dependent vertex enhancement factors 1nl, which quantify the effects of the short- range correlations, are estimated analytically and calculated using the MBT. They are found to follow a simple and physically motivated scaling with the subshell ionization energy Inz: 1nl = 1 + AI.;r;:z + sr], where A, Band (3 are positive constants. These factors can be incorporated in simple independent-particle-model calculations to reconstruct the true annihilation -y-spectra for annihilation on core electrons of atoms across the periodic table, and on the localized atomic-like core electrons of condensed matter systems. In the last part of the work, the atomic MBT is used to address the important problem of calculating the annihilation -y-spectra of molecues, with focus on the role of the positron- nuclear repulsion and correlation effects.

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Brown, A. P. "Positron annihilation at metal surfaces." Thesis, University of East Anglia, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.381743.

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Johansson, Petter. "Pair Annihilation in a Laser Pulse." Thesis, Umeå universitet, Institutionen för fysik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-46816.

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The thesis analyses the process of pair annihilation into one photon in a laser pulse. The theory of how to include pulse shapes in Strong Field QED and the resulting cross section is presented. The cross section is calculated and estimated for lasers of ELI and XFEL facilites. It is found that the effect may be experimentally verifiable at high frequency XFEL facilities for very finely tuned particle kinematics, but negligible at high intensity optical laser facilities such as ELI.

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Massaro, Daniele. "Loop-induced annihilation of dark matter." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amslaurea.unibo.it/19428/.

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Plenty of evidences suggest the existence of a new type of non-luminous matter in the Universe, that has been called dark matter. Its nature is still unresolved, however, there is a widespread belief that is a new particle. Today we have three important search strategies for dark matter: indirect detection, direct detection and collider searches. In this thesis we focus on indirect detection, which investigates the products of annihilation of dark matter in overdense regions of the Universe. In particular we focus on gamma-ray observations, considering the gamma-ray line signal, arising from dark matter annihilation into a pair of monochromatic photons. For electrically neutral dark matter, this process can proceed only via loop diagrams. Its computation can be done using numerical techniques. Numerical tools are a huge step forward in the dark matter research, and help scientists to make predictions and improve their models. However, at the current status there is no tool allowing for the calculation of loop-induced gamma-ray signals for arbitrary models. In this thesis we make an important step towards filling this gap. We focus on the numerical tool MadDM, and we validate the feature of automatised loop-induced computation using two dark matter models: the singlet scalar Higgs portal model and a simplified top-philic model. We then constrain the parameter space of these models using the current experimental results. In particular we consider the upper limits on gamma-ray line searches obtained by Fermi-LAT and HESS collaborations, finding that they provide important constraints on the parameters of both models.

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Tassi, Emanuele. "Exact solutions for magnetic reconnective annihilation." [S.l.] : [s.n.], 2004. http://deposit.ddb.de/cgi-bin/dokserv?idn=971963975.

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Schmitz, Heiko. "Computersimulation von Positronium-Annihilation in Polymeren." [S.l. : s.n.], 1999. http://ArchiMeD.uni-mainz.de/pub/2000/0012/diss.pdf.

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Steinbacher, John James. "Positron annihilation in simple condensed gases." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape15/PQDD_0001/NQ35980.pdf.

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Iwata, Koji. "Positron annihilation on atoms and molecules /." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC IP addresses, 1997. http://wwwlib.umi.com/cr/ucsd/fullcit?p9811796.

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11

Ernström, Per. "Aspects of quarkonium creation and annihilation." [Stockholm] : Stockholm University, 1994. http://catalog.hathitrust.org/api/volumes/oclc/40258801.html.

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Mishra-Sharma, Siddharth. "Extragalactic Searches for Dark Matter Annihilation." Thesis, Princeton University, 2018. http://pqdtopen.proquest.com/#viewpdf?dispub=10928813.

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We are at the dawn of a data-driven era in astrophysics and cosmology. A large number of ongoing and forthcoming experiments combined with an increasingly open approach to data availability offer great potential in unlocking some of the deepest mysteries of the Universe. Among these is understanding the nature of dark matter (DM)—one of the major unsolved problems in particle physics. Characterizing DM through its astrophysical signatures will require a robust understanding of its distribution in the sky and the use of novel statistical methods.

The first part of this thesis describes the implementation of a novel statistical technique which leverages the “clumpiness” of photons originating from point sources (PSs) to derive the properties of PS populations hidden in astrophysical datasets. This is applied to data from the Fermi satellite at high latitudes (|b| ≥ 30°) to characterize the contribution of PSs of extragalactic origin. We find that the majority of extragalactic gamma-ray emission can be ascribed to unresolved PSs having properties consistent with known sources such as active galactic nuclei. This leaves considerably less room for significant dark matter contribution.

The second part of this thesis poses the question: “what is the best way to look for annihilating dark matter in extragalactic sources?” and attempts to answer it by constructing a pipeline to robustly map out the distribution of dark matter outside the Milky Way using galaxy group catalogs. This framework is then applied to Fermi data and existing group catalogs to search for annihilating dark matter in extragalactic galaxies and clusters.

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RAM-PRASAD, C. "LIBERATION WITHOUT ANNIHILATION: PĀRTHASĀRATHI MIŚRA ON JÑĀNAŚAKTI." 名古屋大学文学部インド文化学研究室 (Department of Indian Studies, School of Letters, Nagoya University), 1999. http://hdl.handle.net/2237/19217.

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14

Davies, Shaun, of Western Sydney Nepean University, and Faculty of Visual and Performing Arts. "Sound art and the annihilation of sound." THESIS_FVPA_XXX_Davies_S.xml, 1995. http://handle.uws.edu.au:8081/1959.7/402.

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This thesis describes the way in which sound is taken up and subsequently suppressed within the visual arts. The idealisation and development of sound as a plastic material is able to be traced within the modernist trajectory, which, reflecting a set of cultural practices and having developed its own specific terminologies, comes to regard any material, or anything conceived of as material, as appropriate and adequate to the expression of its distinctive and guiding concepts and metaphors. These concepts and metaphors are discussed as already having at their bases strongly visualist biases, the genealogies of which are traced within traditional or formal philosophies. Here, the marginalising tendency of ocularcentrism is exposed, but the very nature and contingency of marginalisation is found to work for the sound artist (where the perpetuation of the mythologised 'outsider' figure is desired) but against sound which is positioned in a purely differential and negative relation. In this epistemological and ontological reduction, sound becomes simply a visual metaphor or metonymic contraction which forecloses the possibility of producing other ways of articulating its experience or of producing any markedly alternative 'readings'. Rather than simply attempting to reverse the hierarchisation of the visual over the aural, or of prefacing sound within a range of artistic practices (each which would keep the negative tradition going) sound's ambiguous relation to the binarism of presence/absence, system and margin, is, however oddly, elaborated. The strategy which attempts to suspend sound primarily within and under the mark of the concept is interrogated and its limits exposed. The sound artist, the 'margin surfer' is revealed as a perhaps deeply conservative figure who may in the end desire the suppression of sound, and who, actually rejecting any destabilising and threatening notion of 'radical alterity' anxiously clings to the 'marginalised' modernist pretence. It is the main contention of this thesis that the marginalisation of sound obscures the more pressing question of its ambiguous relation to notions of sameness and difference, and that its conceptualisation suppresses the question of the ethical. That the ethical question should (and always does) take 'precedence' over purely epistemological and ontological considerations, and that more genuinely open attitudes should be assumed with respect to sound studies are forwarded in this thesis
Master of Arts (Hons)

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Avalos, Victor P. "Positron annihilation investigation of electron irradiated silicon." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp04/mq23204.pdf.

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Davies, Shaun. "Sound art and the annihilation of sound /." View thesis, 1995. http://library.uws.edu.au/adt-NUWS/public/adt-NUWS20030902.141711/index.html.

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17

Tomalin, I. R. "Strange baryon production in e'+e'- annihilation." Thesis, University of Oxford, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.235095.

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18

區皓良 and Ho-leung Au. "Experimental studies of positron annihilation in semiconductors." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1994. http://hub.hku.hk/bib/B31233417.

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Au, Ho-leung. "Experimental studies of positron annihilation in semiconductors /." [Hong Kong : University of Hong Kong], 1994. http://sunzi.lib.hku.hk/hkuto/record.jsp?B13570419.

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20

Deng, Fan. "Photon Upconversion Based on Triplet-Triplet Annihilation." Bowling Green State University / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1395249331.

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21

Mellor, Christopher. "Magnetic annihilation, null collapse and coronal heating." Thesis, University of St Andrews, 2004. http://hdl.handle.net/10023/12946.

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The problem of how the Sun's corona is heated is of central importance to solar physics research. In this thesis we model three main areas. The first, annihilation, is a feature of non-ideal MHD and focusses on how magnetic field of opposite polarity meets at a null point and annihilates, after having been advected with plasma toward a stagnation point in the plasma flow. Generally, the null point of the field and the stagnation point of the flow are coincident at the origin, but in chapter 2 a simple extension is considered where an asymmetry in the boundary conditions of the field moves the null point away from the origin. Chapter 3 presents a model of reconnective annihilation in three dimensions. It represents flux being advected through the fan plane of a 3D null, and diffusing through a thin diffusion region before being annihilated at the spine line, and uses the method of matched asymptotic expansions to find the solution for small values of the resistivity. The second area of the thesis covers null collapse. This is when the magnetic field in close proximity to a null point is disturbed, causing the field to fold up on itself and collapse. This is a feature of ideal MHD, and causes a strong current to build up, allowing non-ideal effects to become important. When using linearised equations for the collapse problem, we are in fact looking at a linear instability. If this instability initiates a collapse, this is only a valid model until non-linear effects become important. By talking about collapse in chapters 4 and 5 (as it is talked about in the literature), we mean that the linear instability initiates collapse, which in principle, non-linear effects could later stop. Chapter 4 introduces a two-dimensional model for collapse, using the ideal, compressible, linearised MHD equations. It is a general solution in which all spatially linear nulls and their supporting plasma flows and pressure gradients can be checked for susceptibility to collapse under open boundary conditions. Chapter 5 uses the model introduced in chapter 4 to investigate the collapse of three-dimensional, potential nulls (again, spatially linear) for all possible supporting plasma flows and pressure gradients. Using this model, all nulls under consideration are found to collapse and produce large currents, except for a group of 2D O-type nulls supported by highly super-Alfvenic plasma flows. The third area of this thesis involves numerically simulating a model of heating by coronal tectonics (Priest et al, 2002). A simple magnetic field is created and the boundary is driven, also in a simple manner. Current sheets which scale with grid resolution are seen to build up on the quasi-separatrix layers, and there is some evidence of magnetic reconnection.

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Piper, Roland. "Bimolecular triplet-triplet annihilation upconversion for photovoltaics." Thesis, Imperial College London, 2014. http://hdl.handle.net/10044/1/24858.

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Organic upconversion of photons through triplet energy exchange between two or more molecules (OUC) has been investigated through transient absorption and fluorescence spectroscopy, kinetic rate modelling and morphological analysis of thin films. An OUC system, consisting of one sensitising molecule (PQ4Pd) and an emitting molecule (rubrene), was first studied to explore the possibility of modelling the entire OUC process with a kinetic rate model. Transient absorption spectroscopy allowed for the intermediate steps of OUC to be directly observed and fitted, producing rate constants for each step in the process. This complete model was then optimised against fluorescence measurements from a system containing PtTPBP (sensitiser) and perylene (emitter) to calculate rate constants for that system from a single fluorescence type experiment, as opposed to several orthogonal Stern-Volmer type experiments. The possibility of fabricating a thin film OUC has been investigated through microscopy, fluorescence spectroscopy and a simple Monte-Carlo model. Using a system of PtOEP (sensitiser) and DPA (emitter), it was shown that the maximal efficiency of a thin film containing these molecules suspended in a PMMA matrix is found when the matrix is between 80 and 85 weight% of the total mixture. It was shown that on short timescales (a few seconds to a few minutes), atmospheric oxygen does not adversely affect thin film upconverters of this type as local oxygen is extremely rapidly quenched (less than a ms) and fresh oxygen is not able to diffuse back into the matrix at a rate that is competitive to OUC. It was shown that the degree of intermixing of active materials is of absolute importance in this fabrication, and a novel optical technique for measuring this intermixing in air was developed, some preliminary results are included.

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Hansen, Fredrik, and Erik Holmgren. "Neutrinos from Dark Matter Annihilation in the Sun." Thesis, KTH, Teoretisk fysik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-127024.

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Dark Matter (DM) is believed to consist ofWeakly Interactive Massive Particles (WIMPs) which interact only through gravity and the weak nuclear force. These particles can become trapped in gravitational wells such as the Sun and a theoretical value of the capture rate can be calculated. At high particle density the WIMPs annihilating spontaneously into Standard Model (SM) particles. Due to particle equilibrium the total annihilation rate can be related to the capture rate by a simple expression. This report will focus on calculating the capture rate and the related annihilation rate as well as calculating the neutrino 　ux of the Sun. At rst we will give a brief introduction to cosmology and a theoretical argument for the WIMPs as the prime DM candidate. Then we will look at the theoretical background and the mechanism through which WIMPs become trapped and evaporate or annihilate. Finally we will perform a numerical analysis of the WIMP cycle within the Sun and calculate the capture rate for a variety of theoretical WIMP masses. We will look at the capture rate due to scattering both by hydrogen nucleii and by more massive elements. The Scattering by hydrogen will be the prime contributor to the total capture rate and is the only spin dependent contribution.

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Witzig, Christoph. "pp̄ Annihilation into K⁺K⁻ and {pi}⁺{pi}⁻ /." Zürich, 1991. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=9350.

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25

Carroll, Thomas. "Edge annihilation sequences for classes of chordal graphs." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1996. http://handle.dtic.mil/100.2/ADA313817.

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Taylor, James Williams. "Positron annihilation spectroscopy applied to silicon-based materials." Thesis, Royal Holloway, University of London, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.394376.

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Bell, K. W. "Baryon production in esup(+)esup(-) annihilation at PETRA." Thesis, University of Oxford, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.355729.

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Lee, C. M. R. "Positron annihilation on molecules : the role of vibrations." Thesis, Queen's University Belfast, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.437434.

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Turnock, Graham. "Applications of resummation techniques to electron-positron annihilation." Thesis, University of Cambridge, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.259591.

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Mehdinezhad, Elham. "The annihilation graphs of commutator posets and lattices." Doctoral thesis, University of Cape Town, 2015. http://hdl.handle.net/11427/16687.

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Includes bibliographical references
We propose a new, widely generalized context for the study of the zero-divisor/ annihilating-ideal graphs, where the vertices of graphs are not elements/ideals of a commutative ring, but elements of an abstract ordered set (imitating the lattice of ideals), equipped with a binary operation (imitating products of ideals). The intermediate level of congruences of any algebraic structure admitting a "good" theory of commutators is also considered.

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Wilke, Bryn. "UPCONVERTING LOW POWER PHOTONS THROUGH TRIPLET-TRIPLET ANNIHILATION." Bowling Green State University / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1335378364.

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Alazemi, Abdulrahman. "Investigation of Factors in Triplet-Triplet Annihilation Upconversion." University of Cincinnati / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1521189118425574.

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VALERIO, PAULO FERREIRA. "FROM THE NON-ANNIHILATION OF THE JUST WITH THE SINNERS TO THE ANNIHILATION OF THE JUST ON BEHALF OF THE SINNERS." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2003. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=4354@1.

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PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO
O período do exílio foi particularmente fecundo para o pensamento religioso de Israel, quando, então, se pôs com veemência a questão da teodicéia e da busca de nova visão de Deus. Abraão, depositário das promessas, é feito porta- voz da questão fundamental acerca da justiça e da misericórdia de Deus, aguçada depois da destruição de Jerusalém quando, aparentemente, Deus não havia feito distinção entre a sorte dos culpados e dos inocentes. O diálogo entre Deus e Abraão logra justificar a Deus como justo juiz e reafirmar a tese deuteronomística da observância da Tora como condição para se obter a bênção prometida a Abraão; ao mesmo tempo, introduz elementos inusitados no pensamento de Israel, a saber, a possibilidade de os méritos do inocente mudar a sorte dos culpados. Na figura do Servo do Deutero-Isaías esta possibilidade é levada ao extremo, pondo definitivamente em xeque a doutrina da retribuição: o inocente não somente padece com os culpados, seus méritos não apenas influenciam o destino deles, mas ele sofre vicariamente, em lugar dos culpados. A descoberta deste novo modo de agir de Deus em seu Servo é a grande novidade revelada ao grupo que desempenha importante papel no poema.
The exilic period was particularly fertile to Israel s religious thought, for at that time, the question of theodicy was strong, along with the search for a new understanding of God. Abraham, the holder of the promises, was the spokesman for the fundamental question of God s mercy and justice, a problem which became more urgent after the destruction of Jerusalem, when God apparently had not distinguished between the guilty and the innocent. The dialogue between God and Abraham manages to justify God as the righteous judge and reaffirm the deuteronimistic thesis of the observation of the Torah as necessary for obtaining the blessings promised to Abraham. At the same time, it witnesses to new developments in Israel s mentality, namely the possibility of the innocent s merit changing the fate of the guilty. In the figure of the Suffering Servant in Deutero-Isaias this possibility is carried to the extreme, and the doctrine of retribution is definitively placed in check: the innocent not only suffers along with the guilty, his merits not only influence the latter s fate, but the innocent suffers vicariously, in place of the guilty. This discovery of God s new way of acting in his Servant is the great novelty revealed to the group that plays an important role in that poem.

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Uman, Ismail. "Antiproton-Proton Annihilation in flight into K+K-Pi0." Diss., lmu, 2001. http://nbn-resolving.de/urn:nbn:de:bvb:19-4746.

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Bondarenko, Vladimir. "Positron annihilation study of equilibrium point defects in GaAs." [S.l. : s.n.], 2004. http://deposit.ddb.de/cgi-bin/dokserv?idn=971611637.

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Jobando, Vincent Okello. "Positron annihilation spectroscopy study of rubber-carbon black composites." Fort Worth, Tex. : Texas Christian University, 2006. http://etd.tcu.edu/etdfiles/available/etd-12052006-093021/unrestricted/Jobando.pdf.

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37

Dauncey, P. D. "A study of QCD process in e'+e'- annihilation." Thesis, University of Oxford, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.375232.

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Fernandez, Hincapie Jhon Jairo. "Characterisation of microporous carbons by positron annihilation lifetime spectroscopy." Thesis, University of Strathclyde, 2005. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=21596.

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Gasification of coal and other organic materials using oxidative gases such as oxygen, carbon dioxide or steam produces porous carbon materials. The uncertainty in porosity information can be inadequate for a number of potentially applications of microporous carbons. Positron annihilation lifetime spectroscopy (PALS) senses the electronic properties of condensed matter. A PALS experiment implies the measurement of the lifetime, which is the inverse of the annihilation rate. In the present work PALS has been applied to characterise the porosity of gasified carbon materials. In the case of active carbon fibers (ACFs) the characterization by gas adsorption showed that these materials are essentially microporous with narrow pore size distribution. The PALS analysis showed two lifetime components. There is a predominant lifetime component (> 84%) which ranges from 376 to 393 ps and increases its value with the burn-off. The annihilation mechanism apparently depends on the activation agent. Saran based active carbons (ACs) were prepared by pyrolysis and activation using carbon dioxide, air and steam. Gas adsorption and small angle scattering (SAS) showed that these carbons are essentially microporous materials with wide pore size distribution. PALS showed only one lifetime component. This lifetime component (> 99%) ranges from 382 to 401 ps. The lifetime value increases with the burn-off for the C0₂ gasification process. Coal chars from Argonne Premium Coals were gasified using air, carbon dioxide and steam. The gas adsorption and SAS characterization of these activated chars indicated that they are a mixture of micro and mesoporous with a broad pore size distribution. For these samples PALS showed only one lifetime component this ranges from 352 to 367 ps. A good correlation between gas adsorption, SAS and PALS analyses permits to associate the main lifetime with the mean micropore size to ACF and AC materials.

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39

Li, Ming, and 李銘. "Some AB initio studies of positron annihilation in semiconductors." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1998. http://hub.hku.hk/bib/B31238919.

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40

Thandra, Shashidar Rao. "Annihilation and accumulation| Postcolonial literatures of genocide and capital." Thesis, Wayne State University, 2014. http://pqdtopen.proquest.com/#viewpdf?dispub=3665007.

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The emergence of South-South relations in politics and economics refracts strangely through the literature produced in these postcolonial regions. Two primary worldviews emerge in these texts. The first focuses on the continued presence of imperial powers in the South and their culpability in eruptions of violence. The second shifts to modes of domination emerging within South-South interactions. Salman Rushdie's canonical Midnight's Children examines the Bangladeshi genocide through a variety of literary strategies, especially hyperbole, to produce a crisis of history to indict the Cold War arms trade on equal terms with a war criminal. Similarly, Boubicar Boris Diop's novel Murambi, The Book of Bones helps contextualize the Rwandan genocide within the circuits of international attention—weapons supplies, political support and humanitarian aid—that put the lie to the world's supposed "indifference." On the contrary, Murambi's fragmented and polyvocal form evinces the multiple and contradictory investments Rwandans suffered through. East Africa is also home to a South Asian diaspora that arrived before the European powers and now advance India's exponential trade relations with Africa. M.G Vassanji's The In-Between World of Vikram Lall caricatures one of these "Asian Shylocks" to critique the diaspora's class politics and, simultaneously, the racism and xenophobia that led to their 1969 mass deportation from Uganda by Idi Amin. Vassanji's focalizer weaponizes capital accumulation to claim that it protects against such racism, even if it confirms racist caricatures. This argument is not unlike that made by emergent economies from the postcolonial South, which have turned to neoliberal developmental policies to guarantee their independence. Despite the unsustainability of such policies, both Vassanji's novel and Aravind Adiga's The White Tiger take seriously capitalism's ability to nullify old hierarchies even while building new ones. Adiga's focalizer breaks free of his place in the caste system on the strength of capitalism's ability to profane this scared hierarchy. Such anti-caste politics challenge the category of 'radical politics' as espoused by anti-capitalists and adherents of Gandhi, who fought feverishly for the preservation of caste. Taken together, these two novels represent emergent Southern businessmen who fight local antagonisms through international capital, producing a complicated situation that helps us understand the allure of accumulation in emergent economies and its impact on South-South relationships.

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41

Marsden, Jill. "Ecstasy and annihilation in Nietzsche's philosophy of eternal return." Thesis, University of Essex, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.317702.

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42

Li, Ming. "Some AB initio studies of positron annihilation in semiconductors /." Hong Kong : University of Hong Kong, 1998. http://sunzi.lib.hku.hk/hkuto/record.jsp?B20128496.

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43

Wan, Abdullah W. A. T. "Strange and multistrange baryon production in e⁺ e⁻ annihilation." Thesis, Imperial College London, 1985. http://hdl.handle.net/10044/1/37888.

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Zayas, Daniel Antonio. "Electromagnetic extraction and annihilation of antiprotons for spacecraft propulsion." Thesis, Massachusetts Institute of Technology, 2008. http://hdl.handle.net/1721.1/45242.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 2008.
Includes bibliographical references (p. 85-87).
A novel concept for the extraction and long-term trapping of antiprotons from planetary magnetospheres is developed. The excitation via rotating magnetic field of an electron population within a distributed neutral plasma is shown to produce a large-scale magnetic field approximating a dipole with r-² or slower decay. These shallow field gradients are, in turn, found to suppress the natural tendency of the magnetic dipole field to shield against incident particle fluxes. Particle transport and plasma interaction models are developed and used to compare collection performance against various electrostatic and magnetostatic collection systems. Baseline system architectures are presented, and antiproton collection rates on the order of nanograms per day are estimated, far exceeding current Earth-based production rates. To demonstrate the performance potential of antiproton fuels for spacecraft propulsion, a modified rocket equation with relativistic corrections and variable mass-energy conversion efficiency is derived. Antimatter engines operating via the catalysis of nuclear fission in a fissile material by antiprotons are found to be three to four (3 - 4) times more efficient than traditional proton-antiproton annihilation or "beam-core" engines, and vastly more efficient than conventional chemical and electric propulsion systems. Baseline architectures for various missions are presented.
by Daniel Antonio Zayas.
S.M.

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45

Rodin, Jonathan P. (Jonathan Paul) 1970. "Electroweak measurements using heavy quarks identified in e⁺⁻ annihilation." Thesis, Massachusetts Institute of Technology, 1998. http://hdl.handle.net/1721.1/50339.

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46

Nahn, Steven C. (Steven Christopher) 1968. "Pair production of W bosons in electron positron annihilation." Thesis, Massachusetts Institute of Technology, 1998. http://hdl.handle.net/1721.1/50334.

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Pi, Xiaodong. "Positron annihilation spectroscopy of sub-surface defects in semiconductors." Thesis, University of Bath, 2003. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.426150.

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Cao, Xian. "Investigation of Photochemical Upconversion Based on Triplet-Triplet Annihilation." University of Cincinnati / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1455209554.

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胡一帆 and Yi-fan Hu. "Positron beam studies on the electric field at metal-semiinsulating GaAs interfaces." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1997. http://hub.hku.hk/bib/B31215312.

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Hu, Yi-fan. "Positron beam studies on the electric field at metal-semiinsulating GaAs interfaces /." Hong Kong : University of Hong Kong, 1997. http://sunzi.lib.hku.hk/hkuto/record.jsp?B19036620.

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