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Dissertations / Theses on the topic 'Fusion'

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Published: 4 June 2021
Last updated: 31 July 2024

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1

Hughes, Katelyn. "Gene fusions in cancer: Classification of fusion events and regulation patterns of fusion pathway neighbors." Digital WPI, 2016. https://digitalcommons.wpi.edu/etd-theses/764.

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Cancer is a leading cause of death worldwide, resulting in an estimated 1.6 million mortalities and 600,000 new cases in the US alone in 2015. Gene fusions, hybrid genes formed from two originally separated genes, are known drivers of cancer. However, gene fusions have also been found in healthy cells due to routine errors in replication. This project aims to understand the role of gene fusion in cancer. Specifically, we seek to achieve two goals. First, we would like to develop a computational method that predicts if a gene fusion event is associated with the cancer or healthy sample. Second, we would like to use this information to determine and characterize molecular mechanisms behind the gene fusion events. Recent studies have attempted to address these problems, but without explicit consideration of the fact that there are overlapping fusion events in both cancer and healthy cells. Here, we address this problem using FUsion Enriched Learning of CANcer Mutations (FUELCAN), a semi-supervised model, which classifies all overlapping fusion events as unlabeled to start. The model is trained using the known cancer and healthy samples and tested using the unlabeled dataset. Unlabeled data is classified as associated with healthy or cancer samples and the top 20 data points are put back into the training set. The process continues until all have been appropriately classified. Three datasets were analyzed from Acute Lymphoblastic Leukemia (ALL), breast cancer and colorectal cancer. We obtained similar results for both supervised and semi-supervised classification. To improve our model, we assessed the functional landscape of gene fusion events and observed that the pathway neighbors of both gene fusion partners are differentially expressed in each cancer dataset. The significant neighbors are also shown to have direct connections to cancer pathways and functions, indicating that these gene fusions are important for cancer development. Future directions include applying the acquired transcriptomic knowledge to our machine learning algorithm, counting transcription factors and kinases within the gene fusion events and their neighbors and assessing the differences between upstream and downstream effects within the pathway neighbors.
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2

Lundqvist, Fredrik, and Martin Jarl. "En medial fusion : En studie av Telia-telenor fusionen." Thesis, Linköping University, Department of Management and Economics, 2002. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-1460.

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Bakgrund: Telekomindustrin har på senare tiden genomgått en period av strukturella förändringar. Dessa strukturella förändringar har bland annat medfört fusioner och sammanslagningar av företag inom branschen. Fusioner har en inverkan på en rad olika faktorer för företag och samhällen. Att kommunicera med media är viktigt då ett företag genomgår en fusion.

Syfte: Syftet med denna magisteruppsats är att öka förståelsen för företags kommunikation under en fusion samt hur media reproducerar fusionen.

Metod: För att uppnå syftet med denna magisteruppsats genomfördes en diskursanalys av vad som skrivits om Telia-Telenor fusionen i media under 1999. Vi koncentrerade oss till stora svenska dagstidningar.

Resultat: Media fokuserade på fler aspekter i fusionen än vad de inblandade företagen tenderade att göra. På det sätt budskapen presenterades samt budskapens kontext hjälpte oss inte att uppnå en större förståelse för kommunikationen. Då både företag samt media var aktiva i debatten visade det sig att budskapens innehåll tenderade att skilja sig åt ju längre fusionen fortskred. Medierna var kraftigt influerade av en ekonomiskt rationell ideologi medan företagen tenderade att använda sig av flera olika ideologier. Aktörerna, media samt företagen, influerade eller påverkade inte varandra nämnvärt under fusionen. Dessa resultat har påvisat att media och företag befinner sig i två olika diskurser under en fusion.


Background: The telecommunications industry has recently been through a very changing structural period. Mergers have a significant impact on many societal aspects. Communication to the media is important during a merger.

Purpose: The aim of this thesis is to increase the understanding of corporations’ public communication in mergers and how the media reproduces it.

Method: In order to fulfil the purpose, we conducted a discourse analysis of mainly what has been written about the Telia-Telenor merger in the major Swedish newspapers in 1999.

Findings: The media focused on more aspects of the merger than the involved companies did. How messages were presented and in what context they occurred did not give us any higher understanding of the communication. When both the companies and the media were active in a topic their opinions tended to grow apart with time. The media were heavily influenced with rational financial ideology whereas the companies’ messages were influenced by a wider range of ideologies. The actors did not influence each other to any greater extent. This has lead us to believe that corporations and the media are in different discourses.

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3

Cemal, Hawar. "A31KAX: Fusion." Thesis, KTH, Arkitektur, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-95740.

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Målet är att skapa en mjuk övergång mellan bergsvägg och Hornsbruksgatan, genom en fusion mellan byggnadstypologi och topografi. Förenandet som skapas mellan gata leder till ökad cirkulation genom byggnaden.  Olika byggnadsdelar korsar varandra och integreras. Genom byggnadskorsningarna skapas det möjligheter för en programmix med ett trapphus som förenar park, bostad och kontor med gatan. Genom sluttande tak får man terrasser som följer topografin och leder  till utblickar mot söder, väster och öster. Här bildas spontana mötesplatser mellan boende, kontorsanställda och människor som passerar byggnaden för att ta sig till och från parken.
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4

Abu-Adas, Wael. "Highway fusion." Thesis, Massachusetts Institute of Technology, 1991. http://hdl.handle.net/1721.1/62898.

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Thesis (M. Arch.)--Massachusetts Institute of Technology, Dept. of Architecture, 1991.
Includes bibliographical references (p. 80-81).
The objective of this thesis Is to Investigate a design methodology that utilizes both visual perception and movement as determinants to design. We perceive and understand architecture and Its context by moving around it and walking through it. therefore our experience of architecture Is contingent on a sequence of visual and spatial events over a given time frame. Yet when we design. we seem to be primarily concerned with the relationship of static things and places to each other. with little consideration as to how we will perceive those relationships through movement. The context with which I have chosen to work is the highway. where speed and time play important roles. and where movement as a basis for design thinking would be most appropriate. This thesis looks at the highway as movement through space and as an experience Involving an enigmatic relationship among things and places as the driver moves through them. What Is sought Is a sequential visual experience consisting of landscape areas. scenic views. orientational land marks and visual events all of which work together to present us with a full and meaningful Image and experience of the context we are traversing. The three primary elements of the design are the perception of spatial organization. the sequencing of events. and a scale based on time. The project Is a welcoming center to Florida that acts as a "gateway· and an Initiating procession into the Sunshine State. This "gateway· is an Intense experiential journey that lasts Just over three minutes. Its form derives from an exploration of landscape as an Imagery for highway architecture.and of the relationships between landscape and the road. It is my attempt to incorporate the highway Into the landscape. rather than Imposing the highway on the landscape. This highway project Is Intended as a metaphor or model for further exploration into visual perception and movement that may be applied In other architectural designs. I am presently also working on computer animation. to simulate the driving experience through the design. Please check with my advisor for a copy of the video.
by Wael Abu-Adas.
M.Arch.
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5

Rudakova, N. O. "Talk Fusion." Thesis, Сумський державний університет, 2013. http://essuir.sumdu.edu.ua/handle/123456789/33802.

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With the rapid growth in technology nowadays there are numerous exciting gadgets being released on a daily basis. These technological innovations are meant to make our lives easier. Nowadays millions of people from all over the world use a lot of appliances, devices and gadgets. It means that there were a lot of changes in different areas such as education, communication and transport. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/33802
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6

White, David Maurice. "Pedagogical Fusion." VCU Scholars Compass, 2007. http://scholarscompass.vcu.edu/etd/993.

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During the five semesters that I have been at VCU I have learned a great deal from the courses that I have been enrolled in but I have learned the most through my experiences as a Teaching Assistant. These experiences have been so valuable because of the wide range of subject areas in which I have been involved and the diverse instructors that I have assisted. Although I hesitate to use the word "problem" I feel that there is a tendency in teacher training for a student to latch onto one professor and model their teaching practices after that one mentor. While this is not always a bad thing I feel that it can lead some students down a dead-end path of self-exploration and individualization of their personal teaching style. I feel that I have been given a rare and invaluable opportunity in that I have been permitted to assist so many different teachers in such a wide array of subjects. In this thesis, I propose to examine the widely varied experiences that I have had here at VCU as a Teacher and Teaching Assistant. I will look at the teaching styles that I have witnessed, the methodologies and approaches of each course, and most importantly I will put forth my personal teaching philosophy that I have developed from my experiences here at VCU.
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7

MacGregor, David S. "Fusion 2.0 the next generation of fusion in California : aligning state and regional fusion centers /." Thesis, Monterey, California : Naval Postgraduate School, 2010. http://edocs.nps.edu/npspubs/scholarly/theses/2010/Mar/10Mar%5FMacGregor.pdf.

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Thesis (M.A. in Security Studies (Homeland Security and Defense))--Naval Postgraduate School, March 2010.
Thesis Advisor(s): Miller, Patrick ; Brannan, David. "March 2010." Author(s) subject terms: Fusion Centers, California, state, regional, role, mission, all crimes, all hazards, leadership, strategic, operational, intelligence needs, analysis, added value, relevant, customers, law enforcement, stakeholders, cooperation, interpersonal relationships, trust, collaboration, networks, synchronization, alignment, sustainability. Includes bibliographical references (p. 155-162). Also available in print.
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8

Bittner, Margot. "Enhancing the fusion method to fusionB requirements engineering and formal specification /." [S.l.] : [s.n.], 2005. http://deposit.ddb.de/cgi-bin/dokserv?idn=980229839.

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9

Coutts, Duncan. "Stream fusion : practical shortcut fusion for coinductive sequence types." Thesis, University of Oxford, 2011. http://ora.ox.ac.uk/objects/uuid:b4971f57-2b94-4fdf-a5c0-98d6935a44da.

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In functional programming it is common practice to build modular programs by composing functions where the intermediate values are data structures such as lists or arrays. A desirable optimisation for programs written in this style is to fuse the composed functions and thereby eliminate the intermediate data structures and their associated runtime costs. Stream fusion is one such fusion optimisation that can eliminate intermediate data structures, including lists, arrays and other abstract data types that can be viewed as coinductive sequences. The fusion transformation can be applied fully automatically by a general purpose optimising compiler. The stream fusion technique itself has been presented previously and many practical implementations exist. The primary contributions of this thesis address the issues of correctness and optimisation: whether the transformation is correct and whether the transformation is an optimisation. Proofs of shortcut fusion laws have typically relied on parametricity by making use of free theorems. Unfortunately, most functional programming languages have semantics for which classical free theorems do not hold unconditionally; additional side conditions are required. In this thesis we take an approach based not on parametricity but on data abstraction. Using this approach we prove the correctness of stream fusion for lists -- encompassing the fusion system as a whole, not merely the central fusion law. We generalise this proof to give a framework for proving the correctness of stream fusion for any abstract data type that can be viewed as a coinductive sequence and give as an instance of the framework, a simple model of arrays. The framework requires that each fusible function satisfies a simple data abstraction property. We give proofs of this property for several standard list functions. Previous empirical work has demonstrated that stream fusion can be an optimisation in many cases. In this thesis we take a more universal view and consider the issue of optimisation independently of any particular implementation or compiler. We make a semi-formal argument that, subject to certain syntactic conditions on fusible functions, stream fusion on lists is strictly an improvement, as measured by the number of allocations of data constructors. This detailed analysis of how stream fusion works may be of use in writing fusible functions or in developing new implementations of stream fusion.
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10

Kangerud, Jim. "Sensor Fusion : Applying sensor fusion in a district heating substation." Thesis, Blekinge Tekniska Högskola, Avdelningen för för interaktion och systemdesign, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-4884.

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Many machines in these days have sensors to collect information from the world they inhabit. The correctness of this information is crucial for the correct operation. However, at times sensors are not so reliable since they are sometimes affected of some type of noise and thus give incorrect information. Another drawback might be lack of information due to shortage of existing sensors. Sensor fusion is trying to overcome these drawbacks by integrating or combining information from multiple sensors. The heating of a building is a slow and time consuming process, i.e. either the flow or energy consumption are object to drastically changes. On the other hand, the tap water system, i.e. the heating of tap water can be the source to severe changes in both flow and energy consumption. This because of that the flow is stochastic in the tap water system, at any given time a tap may be opened or closed and therefore drastically change the flow. The purpose of this thesis is to investigate if is it possible to use sensor fusion to get accurate continuous flow values from a district heating substation. This is done by integrating different sensor fusion algorithms in a district heating substation simulator.
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11

Filippidis, Arthur. "Multisensor data fusion." Title page, contents and abstract only, 1993. http://web4.library.adelaide.edu.au/theses/09ENS/09ensf482.pdf.

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12

Baig, Asim. "Biometric fusion frameworks." Thesis, Queen's University Belfast, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.534635.

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13

Pabelico, James C. "Automating ASW fusion." Thesis, Monterey, California. Naval Postgraduate School, 2011. http://hdl.handle.net/10945/5662.

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Approved for public release; distribution is unlimited.
This thesis examines ASW eFusion, an anti-submarine warfare (ASW) tactical decision aid (TDA) that utilizes Kalman filtering to improve battlespace awareness by simplifying and automating the track management process involved in anti-submarine warfare (ASW) watchstanding operations. While this program can currently help the ASW commander manage uncertainty and make better tactical decisions, the program has several limitations. Commander, Anti-Submarine Warfare Force U.S. Third Fleet/Commander, Task Force THREE FOUR (CTF-34), seeks to utilize ASW eFusion's playback feature to re-analyze ASW missions by incorporating friendly (Blue) submarine detections into historical target tracks generated by other ASW sensors. The problem is that, the program exhibits several system timing problems when the operator attempts to insert time-late observation data. This thesis will evaluate ASW eFusion's problematic ability to handle time-late reports, prescribe working solutions, and investigate methods to improve the program's user interface for use on the tactical watch floor.
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14

Gäfvert, Oliver. "Saturated Fusion Systems." Thesis, KTH, Skolan för teknikvetenskap (SCI), 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-154556.

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A fusion system is a category on a nite p-group, P, which encodes "conjugacy" relations among the subgroups of P. In this thesis fusion systems of nite groups and ways to prove saturation of abstract fusion systems is investigated. First an introduction to fusion systems of nite groups and the notion of abstract fusion systems is given. Theorems of Burnside and Frobenius regarding fusion systems of nite groups are considered and proven. Alperins fusion theorem formulated for nite groups is considered and used in the proofs. It is proved that all fusion systems of nite groups are saturated. An investigation in simpler ways of proving that a fusion system is saturated is done. First Alperins fusion theorem formulated for abstract fusion systems is considered which says that, a fusion system, denoted by F, is generated by the automorphism groups of some special subgroups.  Further investigation is done in how this set of special groups, that generates F, can be used to check if F is saturated. A theorem of Craven, though originally stated by Puig, is then considered and proven. The theorem says that is suffices to check that the conjugacy classes of, so called, F-centric subgroups are saturated in order to check that the fusion system F is saturated. Also a theorem of [5] is considered and proven. The theorem says that an even smaller set of conjugacy classes than the set of F-centric subgroups is needed to check saturation. Section 1-2 are written together with Karl Amundsson and Eric Ahlqvist.
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Bardsley, David William. "Electroacoustic cell fusion." Thesis, Cardiff University, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.305186.

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16

Henke, Ellen. "Minimal fusion systems." Thesis, University of Birmingham, 2010. http://etheses.bham.ac.uk//id/eprint/1203/.

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We define minimal fusion systems in a way that every non-solvable fusion system has a section which is minimal. Minimal fusion systems can also be seen as analogs of Thompson's N-groups. In this thesis, we consider a minimal fusion systems F on a finite p-group S that has a unique maximal p-local subsystem containing N_F(S). For an arbitrary prime p, we determine the structure of a certain (explicitly described) p-local subsystem of F. If p=2, this yields to a complete classification of the fusion system F.
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17

McNamara, Steven. "Fusion for neutrons." Thesis, Imperial College London, 2016. http://hdl.handle.net/10044/1/44108.

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This thesis addresses the application of fusion as a powerful source of energetic neutrons. The conditions for maximising fusion power density, Pf, in a neutral beam fuelled plasma are determined and used to inform a high Pf device optimisation procedure. Restrictions on the externally applied power, not previously considered, are shown to be a crucial factor in determining the optimum plasma and reactor conditions. Two distinct regimes of operation exist, separated by a discontinuity in the optimum conditions. In one regime, beam-on-target reactions dominate and Pf is maximised when operating with a pure tritium target plasma. The optimum confinement is lower than that required for high gain operation but the energy multiplication is limited to Qf~1. Fast alpha particles, if confined, reduce Pf by a factor (1+0.2Qf)^-1, but leave Qf unchanged. In the second regime, thermonuclear reactions make a significant contribution to Pf, allowing for higher energy gain but requiring improved confinement. Alpha particle heating reduces Pf by around 20% but increases Qf. By considering established tokamak stability constraints the optimum plasma conditions are used to inform a high Pf device design. The model provides a framework for simplifying and informing what would otherwise be a perplexing search for the optimal reactor configuration and allows areas of particular interest to high Pf operation to be identified. A novel tokamak operating regime - the isothermal tokamak - is investigated. An analytic equilibrium is derived and the resulting density and current profiles found to be notably different from those of a conventional device. A model of the anomalous transport due to the trapped electron mode instability is derived. Simultaneous solutions to the MHD and transport equilibria are shown to only exist for relatively shallow density profiles.
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18

Palluel-Guillard, André. "Une Fusion manquée." Chambéry, 1991. http://www.theses.fr/1991CHAML001.

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Durant quinze ans, le grand empire napoléonien fit vivre ensemble Genève et la Savoie enfin réunies depuis la grande cassure du XVIe siècle, mais ces deux entités pourtant francophones et voisines de la France restèrent réfractaires aussi bien à la centralisation qu'entre elles. En fait, le gouvernement impérial ne fut efficace qu'entre 1802 et 1811 c'est-à-dire entre la crise conjointe des séquelles du Directoire et de la mise en place du Consulat et la grande catastrophe économico-politique de 1811-1814 qui compromit la prospérité et la paix religieuses en aggravant la conscription et la fiscalité. En s'écartant des jacobins locaux profrancais, Napoléon restaura en fait les vieilles élites qui ne se rallièrent que superficiellement et qui trahirent à la première occasion dès qu'elles s'aperçurent de la vanité de leur participation. En profitant de la centralisation, du système continental et de la relative laïcité de l'état, Genève eut pu devenir le vrai centre de la région mais les atavismes amenèrent les Genevois à préférer leur célébrité européenne et les Savoyards affolés à se replier sur eux-mêmes pour ne pas être dominés par la richesse genevoise, d'ailleurs l'antagonisme religieux se chargeait bien d'empêcher toute entente. De ce fait chacun conserva ses structures culturelles et économiques même si la Savoie du Nord subit profondément l'influence genevoise. De ce fait les nationalismes l'emportèrent en 1814-1815. On pétitionna beaucoup ici mais en fait seule la volonté des grandes puissances décide du sort de chacun : Genève suivit la confédération suisse et la Savoie se rattacha au royaume sarde. .
During 15 years, geneva savoie lived under the same french napoleonic system, joined together for the first time since th break of the xvi th century, but the french centralisation did not have enough time to integrate deeply two foreign communities even french speaking and very near the boarder of the "creat nation". The imperial government was efficient only during a few years between 1802 and 1811. He had first to settle the difficulties left by the directory and those inherent int the beginning of the consulate then he had to face the final great crisis which compromised the economy and the religious peace in the same time and which worsened the conscription and the tax system. Napoleon did not take care of the profrench jacobins from geneva and savoie so he restored the olf elites but the rallied him very superficially and they betrayed as soon as they realised how they took only a few advantages of their membership. Through the centralisation, the continental system and the religious freedom geneva would have been able to become the center and the leader of the whole region but the traditions were too strong and the "genevois" refused to renounce to their european celebrity and the "savoyards" much too poor and unprepared withdrew into themselves no to have such masters. Anyway powerful churches protestant as well as roman catholic, were too hostile to each other, to admit any connection between the two peoples. Geneva and savoie were too different to join
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19

Bick, Simon Millard. "Occipito-cervical fusion." Master's thesis, University of Cape Town, 2011. http://hdl.handle.net/11427/10142.

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The aim of this study is to review the different surgical indications, techniques and outcomes of occipito-cervical fusion, including C2 fixation methods, the influence on clinical outcome, patient scoring systems and complications.
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20

Everaere, Patricia. "Contribution à l'étude des opérateurs de fusion : manipulabilité et fusion disjonctive." Artois, 2006. http://www.theses.fr/2006ARTO0402.

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Les opérateurs de fusion propositionnelle permettent de déterminer les croyances/buts d'un groupe d'agents à partir des croyances/buts individuels, exprimés par des formules de la logique propositionnelle. Deux critères souvent utilisés pour comparer les opérateurs existants sont la rationalité et l'efficacité algorithmique. Notre thèse est que ces deux seuls critères ne suffisent pas et qu'il faut considérer en plus celui de la manipulabilité. Un opérateur de fusion est dit manipulable si l'un des agents intervenant dans le processus de fusion réussit à modifier le résultat de la fusion, pour le rendre plus conforme à ses attentes, en mentant sur ses véritables croyances/buts. Un opérateur de fusion manipulable ne donne aucune garantie quant à l'adéquation des résultats qu'il donne aux croyances/buts du groupe puisqu'il n'incite pas les agents à fournir leurs croyances/buts véritables. Dans cette thèse, notre première contribution est une étude de la manipulabilité des opérateurs de fusion propositionnelle existants. Elle montre qu'aucun opérateur de fusion existant ne remplit pleinement les trois critères considérés : rationalité, efficacité algorithmique et non-manipulabilité. Notre seconde contribution concerne la mise en évidence de deux nouvelles familles d'opérateurs de fusion disjonctifs, i. E. Des opérateurs qui assurent que le résultat de la fusion implique la disjonction des informations initiales. Les opérateurs de ces familles constituent des alternatives intéressantes aux opérateurs (disjonctifs) à sélection de formules, qui ont une complexité algorithmique élevée, sont manipulables et ne sont pas pleinement rationnels
Propositional merging operators aim at defining the beliefs/goals of a group of agents from their individual beliefs/goals, represented by propositional formulae. Two widely used criteria for comparing existing merging operators are rationality and computational complexity. Our claim is that those two criteria are not enough, and that a further one has to be considered as well, namely strategy-proofness. A merging operator is said to be non strategy-proof if there is an agent involved in the merging process who can change the result of the merging, so as to make it closer to her expected one, by lying on her true beliefs/goals. A non strategy-proof merging operator does not give any guarantee that the results it provides are adequate to the beliefs/goals of the group, since it does not incite the agents to report their true beliefs/goals. A first contribution of this thesis consists of a study of the strategy-proofness of existing propositional merging operators. It shows that no existing merging operators fully satisfy the three criteria under consideration: rationality, complexity and strategy-proofness. Our second contribution consists of two new families of disjunctive merging operators, i. E. , operators ensuring that the result of the merging process entails the disjunction of the information given at start. The operators from both families are shown as valuable alternatives to formula-based merging operators, which are disjunctive, but exhibit a high computational complexity, are not strategy-proof, and are not fully rational
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He, Kefu. "Fusion network performance experiment." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for telematikk, 2013. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-22782.

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Hybrid optical packet/circuit switched networking architectures are increasingly becoming an interesting research field. They integrate multiple switching techniques to achieve better quality of service and to improve resource utilization. The aim of this study was to investigate the performance of TransPacket FUSION Ethernet H1 node, which is being developed based on the original idea of OpMiGua hybrid optical network. The work was focused on several key performance elements: packet delay, packet loss rate and packet delay variation of the hybrid network. The research background and the quality of service methods utilized in hybrid network and OpMiGua were studied in this project. The performance of H1 node was tested based on one applicable scenario. We investigated and analyzed the results obtained from the Spirent test center, and derived a mathematical model of H1 node performance respect to each aspect. Furthermore, the experiment results were verified with usability of H1 node in comparison with the ITU recommendations. The results in our experiment scenario showed that H1 node provides a high quality of service.
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Amundsson, Karl. "Morphisms of Fusion Systems." Thesis, KTH, Skolan för teknikvetenskap (SCI), 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-154553.

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A fusion system on a finite group G with a Sylow p-subgroup P is a category on P with all subgroups of P as objects and group homomorphisms induced by conjugation in G as morphisms and was first introduced by L. Puig around 1990 in order to aid his research in finite group theory. The idea turned out to be fruitful and today, the theory of fusion systems is an active field in mathematics, with applications to topology, representation theory and finite group theory. In this paper, we will, among other things, see how fusion systems aid in solving problems in finite group theory. We begin with an introduction to the theory with basic examples and then proceed to prove two famous theorems named after Burnside and Frobenius. However, to finish the proof of Frobenius’ theorem, we will require the focal subgroup theorem, whose proof requires transfer theory and is thus discussed. Afterwards, we introduce abstract and saturated fusion systems, in which one disregard the underlying group, and later prove that every fusion system on a finite group is saturated. We end with a discussion of morphisms of fusion systems, utilizing the concept previously developed, and generalize the isomorphism theorems to saturated fusion systems. The presentation is well adapted for undergraduate students with limited knowledge of group and category theory and no previous knowledge of fusion systems is assumed.
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Habboush, Isam H. (Isam Hussein). "Image registration and fusion." Thesis, Massachusetts Institute of Technology, 1995. http://hdl.handle.net/1721.1/37009.

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Bennett, Doyle Edward. "Photoinduced fusion of liposomes." Diss., The University of Arizona, 1995. http://hdl.handle.net/10150/187055.

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The photopolymerization of two-component large unilamellar liposomes (LUV) composed of 3/1 dioleoylphosphatidylethanolamine (DOPE) and either 1,2-bis- (10-(2',4'-hexadienoyloxy)decanoyl) -sn-glycero-3-phosphatidylcholine (bis-SorbPC) or 1-palmitoyl-2- (10-(2$\sp\prime,4\sp\prime$-hexadienoyloxy) decanoyl) -sn-glycero-3-phosphocholine (mono-SorbPC) facilitated liposome fusion. Fusion was characterized by fluorescent assays for lipid mixing, aqueous contents mixing, and aqueous contents leakage. The rate and extent of the photoinduced fusion was dependent on the extent of polymerization, temperature, and the fusion initiation conditions, including the pH and the presence of Mg²⁺ ions. Examination of the temperature dependence of fusion for unpolymerized and polymerized liposomes showed that an enhancement of the rate of fusion occurred in the temperature range, Δ T(I), where inverted phase lipid intermediates are observed. Photopolymerization causes lateral separation of the liposome components and thereby results in the isothermal induction of fusion by lowering the threshold temperature for formation of fusion intermediates.
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25

Morgan, Lee W. G. "Inertial confinement fusion neutronics." Thesis, University of York, 2012. http://etheses.whiterose.ac.uk/4427/.

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Since fire was first harnessed one million years ago, man's appetite for energy has become ever more insatiable. As we come close to the end of the fossil fuel era, new energy sources must be found as a matter of urgency. The utilisation of renewable energy sources, such as solar and wind, to completely satisfy the world energy demands would be an ideal scenario. However, the low energy density achieved by renewables as well as local opposition to the building of renewable energy infrastructure will ensure that renewable energy sources will continue to play a relatively minor role in the supply of electricity to the grid. Hence, high energy density energy sources must be employed in order to minimize local opposition to building new power stations, while sustaining the growing energy demands. Nuclear fission is a strong candidate for meeting these high energy demands due to its reliability and safety-driven new technologies. However, nuclear waste and accidents, such as Chernobyl and Fukushima, still remains a concern for many people; thus, other high energy density technologies must utilized in conjunction with fission and renewables in order to maintain energy stability without the loss of public approval. A technology which would revolutionise power production is that of nuclear fusion. However, technological complexities and limited funding ensure that commercial fusion power plants are still at least 30 years away. In essence, fusion is a process whereby two light nuclei combine to form a larger nucleus. In order to meet binding energy requirements in the newly formed nucleus, energy is released in the form of gammas or particle kinetic energy. The ejected particles have a large amount of kinetic energy, which can be used to heat water and drive electricity generating turbines as in a conventional fossil fuel power plant. The proposed fuels for all mainstream fusion reactor concepts are deuterium, which can be extracted from sea water, and tritium, which can be manufactured on the power plant site using relatively small amounts of lithium. In order to initiate and maintain fusion reactions, the fusion fuel must be heated to approximately 100 million degrees Celsius, resulting in the fuel being in the plasma state. Until fairly recently, the quest for safe and clean energy in the form of IFE has mainly been driven by areas of research relevant to formation and the ignition of the fuel. The understanding of this physics holds the key to creating a reactor that can efficiently and effectively ignite the fuel and release more energy than is supplied. However, in recent years, as these area of physics have become more understood and the reality of fusion gain actually occurring in the near future has become more apparent, the need to understand the physics and technology issues, which are peripheral to the reactor core, has become more important. An area of research which is gaining popularity is reactor blanket technology. The blanket is a component which surrounds the fusion core whose main functionality includes: Shielding fusion reactor staff from harmful neutron radiation; absorbing the energy of the 14.1MeV neutrons emitted from the D-T reaction and using this energy to convert water into steam and drive turbines; producing tritium, via the ^{\text{6}} Li(n,α)T reaction, in order to maintain reactor tritium self-sufficiency. In order to achieve this functionality, the neutron and materials physics must be understood in greater detail. The extremely high temperatures and neutron fluxes exert forces on the reactor walls which are much higher than experienced by fission reactors. It is vital that fusion energy is to produce energy with significantly less nuclear waste than is produced in the fission industry. To achieve this, blanket materials must be chosen such that they are adequately resilient to transmutation via neutron interactions. Thus, ensuring that the blanket materials, once decommissioned, will be classified as low or medium level nuclear waste and that the amount of such waste is minimal. In addition to environmental concerns, the transmutation of nuclides in the blanket, other than lithium, is not beneficial to the mechanical properties of the material which can reduce the blanket performance. A balance must be found between the addition of impurities, such as molybdenum and niobium in steels, to improve the mechanical properties of materials and the potential nuclear waste associated with the added chemicals. Thus, the study and control of nuclide transmutations within the blanket is crucial in determining the level of success of fusion reactors. The production of tritium is an important function of the blanket, as without this function the reactor core would have no fuel to burn. In order for a fusion reactor to become commercially viable, the blanket must create at least 10% more tritium than the reactor core is burning. This is due to tritium decay, small losses of tritium to the environment and tritium retention within structural materials. The vast majority of tritium produced in the blanket is a result of neutron absorption of lithium-6, which then decays to tritium and releases an alpha particle as a by-product. As the blanket ages, the amount of lithium in blanket decreases and so does the rate of tritium production, hence a solid blanket needs to be replaced every 3-6 years in order to maintain a large enough tritium breeding rate to sustain the reactor core. The concept of utilising the neutron energy, to create electricity, and a lithium blanket, to create tritium, has been studied extensively for magnetic confinement fusion (MCF) devices. Recent advancements in ICF research have lead to the realisation that ICF blanket technology (BT) must now be developed in order to ensure the technology is well understood by the time that commercial scale ignition has been achieved experimentally. However, ICFBT is generally less developed when compared to MCFBT; MCFBT research cannot be assumed to be directly applicable to ICFBT due to the vast difference in temporal distribution of neutron radiation emitted by ICF and MCF confinement regimes which results in different transmutation rates, damage and tritium breeding rates. This thesis includes an introduction to fusion and presents background theory of fusion blanket technology. The main features include the description and benchmarking of a fusion specific depletion code named FATI (Fusion Activation and Transport Interface), the development and evaluation of control theory applied to blanket impurity removal, the study of time-dependent depletion and the development of a fusion specific energy binning format for Monte-Carlo modelling. Both fission and fusion neutronic calculations rely heavily on Monte-carlo neutron transport codes, such as MCNP. The most important and frequently used functions used within these codes is the calculation of reaction rates. Calculating reaction rates can be accomplished via the point-wise estimator approach, which is accurate but very computationally expensive, or the multi-group method, which is fast but can lack accuracy if an inappropriate energy group structure is used to bin the reaction energies. Jean-Christophe Sublet, CCFE, was planning to develop a energy group structure, to be used in conjunction with Monte-carlo calculations of fusion devices. Thus, this work was completed via a collaboration between the author and Jean-Christophe. This study concluded that a 16,000 group structure was required in order to achieve < 5% uncertainty. This study could potentially have a large impact on the group structure used in fusion activation calculations. The most commonly used group structure used for fusion activation analysis is comprised of only 175 groups. Thus, the 175 group calculations could be significantly over estimating activation.
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26

Wang, Simi. "Surveillance video data fusion." Thesis, Kingston University, 2016. http://eprints.kingston.ac.uk/35593/.

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The overall objective under consideration is the design of a system capable of automatic inference about events occurring in the scene under surveillance. Using established video processing techniques. low level inferences are relatively straightforward to establish as they only determine activities of some description. The challenge is to design a system that is capable of higher-level inference, that can be used to notify stakeholders about events having semantic importance. It is argued that re-identification of the entities present in the scene (such as vehicles and pedestrians) is an important intermediate objective, to support many of the types of higher level interference required. The input video can be processed in a number of ways to obtain estimates of the attributes of the objects and events in the scene. These attributes can then be analysed, or 'fused', to enable the high-level inference. One particular challenge is the management of the uncertainties, which are associated with the estimates, and hence with the overall inferences. Another challenge is obtaining accurate estimates of prior probabilities, which can have a significant impact on the final inferences. This thesis makes the following contributions. Firstly, a review of the nature of the uncertainties present in a visual surveillance system and quantification of the uncertainties associated with current techniques. Secondly, an investigation into the benefits of using a new high resolution dataset for the problem of pedestrain re-identification under various scenarios including occlusoon. This is done by combining state-of-art techniques with low level fusion techniques. Thirdly, a multi-class classification approach to solve the classification of vehicle manufacture logos. The approach uses the Fisher Discriminative classifier and decision fusion techniques to identify and classify logos into its correct categories. Fourthly, two probabilistic fusion frameworks were developed, using Bayesian and Evidential Dempster-Shafer methodologies, respectively, to allow inferences about multiple objectives and to reduce the uncertainty by combining multiple information sources. Fifthly, an evaluation framework was developed, based on the Kelly Betting Strategy, to effectively accommodate the additional information offered by the Dempster-Shafer approach, hence allowing comparisons with the single probabilistic output provided by a Bayesian analysis.
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Wei, Pan. "Fusion for Object Detection." Thesis, Mississippi State University, 2018. http://pqdtopen.proquest.com/#viewpdf?dispub=10826517.

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In a three-dimensional world, for perception of the objects around us, we not only wish to classify them, but also know where these objects are. The task of object detection combines both classification and localization. In addition to predicting the object category, we also predict where the object is from sensor data. As it is not known ahead of time how many objects that we have interest in are in the sensor data and where are they, the output size of object detection may change, which makes the object detection problem difficult.

In this dissertation, I focus on the task of object detection, and use fusion to improve the detection accuracy and robustness. To be more specific, I propose a method to calculate measure of conflict. This method does not need external knowledge about the credibility of each source. Instead, it uses the information from the sources themselves to help assess the credibility of each source. I apply the proposed measure of conflict to fuse independent sources of tracking information from various stereo cameras. Besides, I propose a computational intelligence system for more accurate object detection in real--time. The proposed system uses online image augmentation before the detection stage during testing and fuses the detection results after. The fusion method is computationally intelligent based on the dynamic analysis of agreement among inputs. Comparing with other fusion operations such as average, median and non-maxima suppression, the proposed methods produces more accurate results in real-time. I also propose a multi--sensor fusion system, which incorporates advantages and mitigate disadvantages of each type of sensor (LiDAR and camera). Generally, camera can provide more texture and color information, but it cannot work in low visibility. On the other hand, LiDAR can provide accurate point positions and work at night or in moderate fog or rain. The proposed system uses the advantages of both camera and LiDAR and mitigate their disadvantages. The results show that comparing with LiDAR or camera detection alone, the fused result can extend the detection range up to 40 meters with increased detection accuracy and robustness.

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Mauroy, Chloé. "Fusion d'auto-assemblages lipidiques." Toulouse 3, 2010. http://thesesups.ups-tlse.fr/1039/.

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Les processus de fusions membranaires sont des processus vitaux dans les systèmes biologiques. Ils nécessitent une déstructuration de l'organisation membranaire. La fusion est un phénomène parfaitement contrôlé qui ne s'effectue pas de façon spontanée du fait de l'existence de barrières énergétiques. Pour abolir ces barrières, il est nécessaire d'apporter de l'énergie au système. Dans une première partie est étudiée l'électrofusion entre deux vésicules unilamellaires géantes (GUVs), pour laquelle il est nécessaire d'appliquer un champ électrique exogène ayant pour effet l'électroperméabilisation des membranes pour créer un état fusogène. Le champ électrique externe peut induire la déstabilisation des membranes permettant alors la fusion entre ces deux édifices membranaires en contact lors de l'impulsion. Nous avons caractérisé, d'une part, le rôle des états de phase des auto-assemblages lipidiques et les valeurs seuil du potentiel transmembranaire nécessaire à l'électroperméabilisation, et, d'autre part, les modifications morphologiques associées à cette homofusion. Dans une seconde partie est étudiée la fusion spontanée entre des vésicules catanioniques et des GUVs de différentes compositions et états de phase. Nous avons pu mettre en évidence le fait que les interactions entre ces deux systèmes dépendaient d'une part de l'état de phase des GUVs et d'autre part des interactions électrostatiques entre ces deux systèmes. Pour que la fusion soit effective, il apparaît nécessaire d'avoir une désorganisation de l'édifice membranaire. Cette désorganisation est ici induite par la présence d'un champ électrique endogène révélé par le potentiel zêta des vésicules catanioniques
Membrane fusion processes play a key role in biological system. Fusion processes involve destabilization of membrane organization. This is a controlled phenomenon which is not spontaneous because of energetic barriers. To abolish these barriers, it is necessary to provide energy to the system. In a first part, electrofusion between two giant unilamellar vesicles (GUVs) was studied. The fusogenic state was obtained by the application of an exogenous electric field to induce membrane electropermeabilization. External electric field can induce membrane destabilization allowing fusion between these two membrane systems in contact during the electric pulse. We characterized, on the first hand, the role of phase states of the membrane and the critical electric field for electropermeabilization and, on the other hand, the morphological modifications associated to this homofusion. In a second part, spontaneous fusion between catanionic vesicles and GUVs with different compositions and phase states was studied. We underline the fact that the interactions between these two systems depend, on the first hand, on the phase states of the GUVs and, on the other hand, on the electrostatic interactions between them. Fusion is induced when the membrane is destabilized. This destabilization is induced here by the presence of an endogenous electric field revealed by the zeta potential of the catanionic vesicles
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29

Bedworth, Mark D. "High level data fusion." Thesis, Aston University, 1999. http://publications.aston.ac.uk/10603/.

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We address the question of how to obtain effective fusion of identification information such that it is robust to the quality of this information. As well as technical issues data fusion is encumbered with a collection of (potentially confusing) practical considerations. These considerations are described during the early chapters in which a framework for data fusion is developed. Following this process of diversification it becomes clear that the original question is not well posed and requires more precise specification. We use the framework to focus on some of the technical issues relevant to the question being addressed. We show that fusion of hard decisions through use of an adaptive version of the maximum a posteriori decision rule yields acceptable performance. Better performance is possible using probability level fusion as long as the probabilities are accurate. Of particular interest is the prevalence of overconfidence and the effect it has on fused performance. The production of accurate probabilities from poor quality data forms the latter part of the thesis. Two approaches are taken. Firstly the probabilities may be moderated at source (either analytically or numerically). Secondly, the probabilities may be transformed at the fusion centre. In each case an improvement in fused performance is demonstrated. We therefore conclude that in order to obtain robust fusion care should be taken to model the probabilities accurately; either at the source or centrally.
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30

Howard, Megan Wilder. "Coronavirus mediated membrane fusion /." Connect to full text via ProQuest. Limited to UCD Anschutz Medical Campus, 2008. http://proquest.umi.com/pqdweb?did=1552538711&sid=1&Fmt=6&clientId=18952&RQT=309&VName=PQD.

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Thesis (Ph.D. in Microbiology) -- University of Colorado Denver, 2008.
Typescript. Includes bibliographical references (leaves 161-183). Free to UCD Anschutz Medical Campus. Online version available via ProQuest Digital Dissertations;
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31

Merker, James. "Micro-autoradiographic fusion tomography." [Tampa, Fla] : University of South Florida, 2008. http://purl.fcla.edu/usf/dc/et/SFE0002417.

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Kumar, Mrityunjay. "Model based image fusion." Diss., Connect to online resource - MSU authorized users, 2008.

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Östling, Jenny. "Fusion av helägt dotterbolag : En översikt över livscykeln från koncernbildning fram till fusion." Thesis, Stockholm University, School of Business, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-6064.

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Uppsatsen behandlar fusioner i helägda dotterbolag, vilket är den vanligaste formen av fusion. Arbetet syftar till en ökad förståelse av problematiken genom att se på hela livscykeln från omstrukturering, till konsolidering och vidare till själva fusionen med tillhörande problem, vilka främst inriktas på koncernmässig goodwill. Uppsatsen tar sin utgångspunkt i externredovisningen och jämför hur denna samverkar med beskattningen. Inom redovisningen råder förvirring då olika regler gäller för olika typer av bolag, vägen mot internationell harmonisering är lång och förenklingsarbetet går trögt. Harmoniseringen av skatte- och civilrätten har varit mer lyckat. Regleringen från EU har utökats och inom kort finns möjligheter till internationell fusion. Vid en fusion spelar de övervägande företaget har gjort vid förvärvsanalysen och den efterföljande konsolideringen en stor roll för hur värdena överförs till det övertagande bolaget. Redovisningen för över till koncernmässiga värden, medan beskattningen kräver skattemässiga/bokföringsmässiga värden. Problemet har i huvudsak lösts genom att uppskrivning av tillgångar anses tillåtna skattemässigt om dessa tas upp till beskattning. På detta sätt kan redovisning och beskattning alltså ändock utgå från samma värden. Då koncernmässig goodwill finns i koncernredovisningen innan fusionen uppstår ändock problem. Posten härrör sig inte till dotterbolagets räkenskaper såsom beskattningen kräver. Problemet har lösts genom att goodwill inte anses förvärvad av dotterbolaget, vilket krävs enligt skatterätten. Detta medför nekad avdragsrätt vid påföljande avskrivningar. Redovisningen och beskattningen utgår härmed från olika värden i denna situation. Förslag till framtida forskning ligger i hur internationella fusioner kommer att utvecklas praktiskt. Det skulle också vara intressant att se hur fissioner kommer att användas samt i vilken utsträckning de olika omstruktureringsalternativen används i förhållande till varandra i praktiken.

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Zartova, Irina. "Mesonic fusion - pion and eta meson production in light ion nuclear fusion reactions." Doctoral thesis, Stockholms universitet, Fysikum, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-39875.

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The present thesis describes two experiments performed in the storage ring CELSIUS at The Svedberg Laboratory in Uppsala. In the first experiment the importance of three - nucleon clustering in the six - nucelon system was investigated. The total cross section for the production of the ground state and the 3.56 MeV second excited state of 6Li in the 3He(3He,6Li)π+ reaction has been measured at two beam energies, 261.1 and 262.5 MeV, corresponding to center - of - mass energies 1.2 and 1.9 MeV above the production threshold for the 3.56 MeV state. For the ground state the result was 347 ± 84 ± 42 and 92 ± 84 ± 11 nb respectively. The result for the 3.56 MeV state, 104 ± 23 ± 12 and 56 ± 35 ± 7 nb respectively, is compared to the result of a previous study where the 3.56 MeV state was populated in the d(4He,6Li)π0 reaction. In the second experiment a clean sample of 5×105 eta mesons was prepared by means of the d(p,3He)η reaction. Eta production was tagged by the precise determination of the kinetic energy of the associated 3He ions. In the subsequent decay of eta mesons, channels with lepton - anti - lepton pairs were studied in the WASA detector. In a separate study properties of the WASA deuterium pellet target were investigated and in particular the effects on the beam of the beam - target interactions. In both sets of experiments the fused nuclear system was detected by means of a zero - degree spectrometer with a semiconductor detector telescope. Choosing the detectors to match the rather different requirements, precise information regarding the identity and the momentum of the detected ions could be obtained in both cases.
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Nilsson, Gunnar. "Detection of fusion genes and fusion proteins in sarcoma : methodological and clinical aspects /." Stockholm, 1999. http://diss.kib.ki.se/1999/91-628-3425-8/.

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Davies, Sarah Margaret Anne. "Characterisation of the feline leukaemia virus fusion peptide : implications for the fusion mechanism." Thesis, University of Edinburgh, 1998. http://hdl.handle.net/1842/29724.

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This thesis examines the structure and function of the putative fusion peptide of the retrovirus Feline leukaemia virus, (FeLV), using a variety of mainly biophysical techniques. The structural effects of the FeLV fusion peptide on lipid polymorphism were studied. Using differential scanning calorimetry, 31P nuclear magnetic resonance and time-resolved X-ray diffraction this peptide was found to induce changes in lipid conformation and motion similar to those of known fusogens: it favoured the formation of non-bilayer lipid conformations which have a relatively large negative curvature, namely the inverted hexagonal phase and isotropic lipid states. Moreover, using X-ray diffraction, a new lipid phase was observed in the presence of the FeLV peptide. Neutron diffraction studies revealed a change in the packing of lipid molecules within a bilayer and also possible thinning of the bilayer, both of which were induced by interaction with the FeLV fusion peptide. Fusogenic activity for this putative viral fusion peptide was demonstrated, using fusion assays, which measured the merging of lipid membranes in the presence of the FeLV fusion peptide. These findings are discussed in the light of the current concepts of the fusion mechanism. They add support to two currently favoured theories of fusion: precession by a fusion peptide as a means of inducing the initial destabilisation of a bilayer, and the formation of highly bent, high energy lipid intermediates, such as the 'modified stalk', in the multistep fusion pathway. Circular dichroism was employed to determine the secondary structure of the FeLV fusion peptide under a variety of experimental conditions. This peptide was observed to flip readily between α-helical and β sheet conformations. This suggests that structural plasticity may be an important dynamic property of fusion peptides. Possible relationships between peptide structure and function are discussed.
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Wasserman, Thomas A. "A reduced tensor product of braided fusion categories over a symmetric fusion category." Thesis, University of Oxford, 2017. http://ora.ox.ac.uk/objects/uuid:58c6aae3-cb0e-4381-821f-f7291ff95657.

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The main goal of this thesis is to construct a tensor product on the 2-category BFC-A of braided fusion categories containing a symmetric fusion category A. We achieve this by introducing the new notion of Z(A)-crossed braided categories. These are categories enriched over the Drinfeld centre Z(A) of the symmetric fusion category. We show that Z(A) admits an additional symmetric tensor structure, which makes it into a 2-fold monoidal category. ByTannaka duality, A= Rep(G) (or Rep(G; w)) for a finite group G (or finite super-group (G,w)). Under this identication Z(A) = VectG[G], the category of G-equivariant vector bundles over G, and we show that the symmetric tensor product corresponds to (a super version of) to the brewise tensor product. We use the additional symmetric tensor product on Z(A) to define the composition in Z(A)-crossed braided categories, whereas the usual tensor product is used for the monoidal structure. We further require this monoidal structure to be braided for the switch map that uses the braiding in Z(A). We show that the 2-category Z(A)-XBF is equivalent to both BFC=A and the 2-category of (super)-G-crossed braided categories. Using the former equivalence, the reduced tensor product on BFC-A is dened in terms of the enriched Cartesian product of Z(A)-enriched categories on Z(A)-XBF. The reduced tensor product obtained in this way has as unit Z(A). It induces a pairing between minimal modular extensions of categories having A as their Mueger centre.
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Fabre, Sophie. "Apport de l'information contextuelle à la fusion multicapteurs : application à la fusion pixel." Toulouse, ENSAE, 1999. http://www.theses.fr/1999ESAE0013.

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Deux méthodes théoriques générales de classification utilisant la fusion d'images multispectrales et intégrant l'information sur la validité des senseurs sont mises en place. Ces méthodes générales sont appliquées pour réaliser une classification au niveau du pixel et elles sont alors mises en œuvre sur des données physiques. La théorie de Dempster-Shafer, compte tenu de ses avantages inhérents, est utilisée pour intégrer une information supplémentaire sur les conditions d'acquisition des mesures par les senseurs. Cette information renseigne sur la fiabilité à accorder aux capteurs est appelée information contextuelle. Le formalisme de modélisation de l'information contextuelle est basé sur l'évaluation de domaines flous de validité, soit de chaque source prise isolément, soit de toutes les associations de sources considérées concurrentiellement. Ainsi deux méthodes de fusion et de modélisation de l'information contextuelle sont proposées. Lorsque l'apprentissage au préalable n'est pas disponible pour un objet de la scène, ces méthodes évoluent et une méthode globale est déduite. Les méthodes mises en place sont appliquées sur des cas typiques pour comparer les résultats de classification obtenus avec ceux issus d'une approche probabiliste classique sans prise en compte de la validité des capteurs. De plus, les méthodes sont appliquées pour réaliser une classification au niveau du pixel et sont mises en œuvre sur des données physiques. Seul un paramètre perturbateur atmosphérique, la vapeur d'eau, est introduit pour évaluer la fiabilité des mesures acquises par les capteurs. Les données utilisées sont obtenues à partir de bases de données (données météorologiques, mesures de réflectances spectrales). Ces simulations de cas typiques et cette application à la classification pixel permettent de montrer que l'information contextuelle est pertinente et correctement intégrée et que les performances de classification sont améliorées.
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Tamadoni, Anilin. "AstraZeneca : Vikten av intern marknadsföring och kommunikation i samband med fusioner." Thesis, Södertörn University College, School of Business Studies, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:sh:diva-1007.

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In the society of today it’s very hard for companies to succeed with mergers. (A.L.Pablo, M.Javidan:2004) This study intends to elucidate the importance of internal marketing and internal communication with mergers. The intention with this essay is to study and analyse the merger between the two companies Astra and Zeneca and study the employers at the time when the merger took place in 1999.

I have chosen to do this study on the basis of an employer’s perspective. I have used existing theories as internal communication, internal marketing and mergers and acquisition. The empirical data is based on a questionnaire focusing on how the employers handled the merger AstraZeneca. The questionnaire was responded by 60 employers from AstraZeneca.

The conclusion in this study is that internal marketing and internal communication are really important for mergers to succeed and that the internal marketing and communication in AstraZeneca was well organised. That was the main reason for AstraZeneca’s success. Companies should understand the importance of internal cooperation especially with mergers, when a lot of knowledge and information is vital for succeed.

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Iggland, Anders, and Dan Johansson. "En studie om Varumärken i media - Hur ska GävleTidningar förhålla sig till Arbetarbladet och GefleDagblad?" Thesis, University of Gävle, Department of Business Administration and Economics, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-150.

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Syftet med denna uppsats är att undersöka varumärkesproblematiken i denna dubbla konkurrens- och samarbetssituation.


The purpose with the study is to examine the complex problem of brands, in a competition - and cooperation situation.

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Ulshöfer, Matthias. "Kontrollerwerb in der Fusionskontrolle : eine Untersuchung im europäischen, deutschen und US-amerikanischen Fusionskontrollrecht /." Baden-Baden : Nomos, 2003. http://catalogue.bnf.fr/ark:/12148/cb400442433.

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42

Manson, Graham. "Electrofusion of cells : development of a fusion apparatus and a protocol for cell fusion." Thesis, University of Aberdeen, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.297646.

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Design and construction of an apparatus to provide signal sources for electrofusion of cells is described. Experiments were performed with the apparatus on mammalian human cells and plant protoplasts to derive the best protocols to achieve alignment and fusion. Four versions of the apparatus were constructed with modifications being determined by both the results of the cell experiments and electronic experiments on circuit design. The protocols to be followed to achieve fusion of cells in different media were confirmed by experiment, and the signal on the cell was mathematically analysed. Using the results of this analysis, an improved protocol was produced for achievement of cell fusion in binary or multiple cell clusters in various suspension media, by manipulation of electrical signals. Suggestions are made for circuit construction using new integrated circuit elements and microcontrollers, with machine operation and information logging being directed by a personal computer.
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Garanin, Georg [Verfasser]. "Wertigkeit der radiolunären Fusion und radioskapholunären Fusion bei patienten mit rheumatoider Arthritis / Georg Garanin." Greifswald : Universitätsbibliothek Greifswald, 2014. http://d-nb.info/1064192556/34.

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44

Wei, Albert S. (Albert Shuan). "Border fusion / Fusión en la frontera : integrating industry, habitation and exchange in a divided city." Thesis, Massachusetts Institute of Technology, 2007. http://hdl.handle.net/1721.1/42007.

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Thesis (M.C.P.)--Massachusetts Institute of Technology, Dept. of Urban Studies and Planning; and, (S.M.)--Massachusetts Institute of Technology, Dept. of Architecture, 2007.
This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
Includes bibliographical references (p. 141-147).
The urban fabric of communities along San Diego/Tijuana's la Línea or border wall are characterized by high degrees of spatial fragmentation: -- a condition typical of border interface areas in politically partitioned or divided cities. Despite being centrally located relative to population and activity centers and their economic and social importance as sites for border crossings, these communities are sites of contention which have tended to attract a mixture of conventionally undesirable development programs. The critical interface connecting the US and Mexican halves of the city is, in substantial measure, a "no-man's-land." This thesis considers one such border community, San Diego's Otay Mesa district, and proposes a long-term urban design strategy for its transformation into mixed-use neighborhoods with the border wall itself as a key activating and organizing spatial element. What is a physical expression of urban form in Otay Mesa that simultaneously accommodates frequently conflicting national, local and environmental objectives for the site? How may man-made infrastructures and natural site systems be exploited, restructured and interlaced to facilitate the redevelopment of the site? What design interventions will improve the physical and social connections between San Diego and Tijuana, and support these connections by developing a new activity center at Otay Mesa? What will life be like in the neighborhoods that will emerge from this redevelopment? The proposed strategy takes the form of an integrated urban and landscape design and programming framework developed to achieve and supplement planning objectives for the site while overcoming proximity-related land-use incompatibilities.
(cont.) Extant urban systems, including hydrology, landscape, transportation and security, are restructured as interdependent physical systems, which, in interaction, may be deployed to generate a matrix of urban neighborhoods for habitation, employment, recreation and cross-border economic and cultural exchange. Specific proposals advanced include: (i) the development of an exchange-oriented mixed-use commercial center at the proposed Otay Mesa East border crossing; (ii) the transformation of the border wall into a garden and hydrologic feature linked into the district's developed fields, its ecology and landscape features; and (iii) reorganized infrastructural systems to mitigate heavy truck traffic.
by Albert S. Wei.
S.M.
M.C.P.
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45

Soler, Gwendoline. "Leucémogenèse induite par les fusions NUP98 : étude moléculaire et fonctionnelle de la fusion NUP98-LNP1." Paris 7, 2010. http://www.theses.fr/2010PA077061.

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Les hémopathies malignes (HM) sont des pathologies touchant la cellule souche hématopoïétique ou des progéniteurs plus ou moins engagés. Elles résultent de l'accumulation d'événements génétiques affectant divers processus biologiques comme ceux permettant le contrôle de la prolifération et/ou de la différenciation de ces cellules. Parmi ces événements génétiques, certains sont impliqués de façon récurrente dans le développement des HM. C'est le cas des réarrangements chromosomiques conduisant à la formation de gènes de fusion impliquant le gène NUP98 en 1 Ipl5. Actuellement plus de 25 partenaires de fusion de NUP98 sont décrits. Mon travail de thèse a consisté en l'étude des mécanismes moléculaires impliqués dans la survenue des HM associées à ces remaniements du gène NUP98. Nous avons ainsi décrit quatre nouvelles fusions NUP98, au cours desquelles les partenaires de NUP98 se classent dans différentes catégories : facteur à homéodomaine (GSX2), facteur de remodelage de la chromatine (BPTF, AF10), et protéine cytoplasmique de fonction inconnue (LNP1). En particulier l'étude fonctionnelle de la fusion NUP98-LNP1 a permis d'affirmer son fort pouvoir oncogénique et d'identifier les cellules souches leucémiques dans le compartiment des cellules souches hématopoïétiques. Elle a révélé d'importantes différences conduisant à distinguer cette fusion des autres fusions NUP98 déjà décrites et suggère la participation de mécanismes moléculaires de transformation inédits pour les fusions NUP98, impliquant notamment des protéines mitochondriales
Hematological malignancies (HM) are disorders affecting the hematopoietic stem cell or committed progenitors. They result from the accumulation of genetic events deregulating different biologic processes like cell proliferation and/or cell differentiation. Some of these genetic events are recurrently implicated in the development of HM. For example, the creation of fusion genes involving NUP98 gene on chromosome 1 Ipl5 following chromosomal translocations or rearrangements. Until now, more than 25 partner genes have been described in the genesis of the NUP98 fusions. The purpose of my thesis work was the characterization of the molecular mechanisms of the NUP98 fusions-associated HM. We describe here four novel NUP98 fusions, and the partner proteins could be classified in the following categories : homeodomain-containing factor (GSX2), chromatin-associated factor (BPTF, AF10), and cytoplasmic protein of unknown fonction (LNP1). The more detailed analysis of the NUP98-LNP1 fusion protein allows us to demonstrate its powerful transforming properties and to identify the leukemia stem cells in the hematopoietic stem cell compartment. The NUP98-LNP1 fusion protein is quite different from the previously described NUP98 fusions and our findings suggest some unreported molecular pathways for leukemogenic NUP98 fusions involving interactions with mitochondrial proteins, in particular
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46

Lee, Angela Wing Chung. "Breast image fusion using biomechanics." Thesis, University of Auckland, 2011. http://hdl.handle.net/2292/10277.

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Breast cancer is a leading cause of cancer mortality in women worldwide. Biophysical mathematical models of the breast have the potential to aid in the diagnosis and treatment of breast cancer. This thesis presents research on the development and validation of biomechanical models of the breast subject to gravity and compressive loads. The finite element method was used to implement the theory of finite elasticity coupled with contact mechanics in order to simulate the large non-linear deformations of the breast tissues. Initially, validation studies were conducted using a breast phantom, which was placed in different orientations with respect to the gravity loading and compressed using a custom made device. A novel application of a block matching image processing method was used to quantitatively assess the accuracy of the biomechanics predictions throughout the entire phantom. In this way, systematic changes to the assumptions, parameters, and boundary constraints of the breast models could be quantitatively assessed and compared. Using contact mechanics to model the interactions between the ribs and breasts can improve the accuracy of simulating prone to supine deformations due to the relative sliding of the tissues, as was observed using MRI studies on volunteers. In addition, an optimisation framework was used to estimate the heterogeneous mechanical parameters of the breast tissues, and the improvements to the models were quantified using the block matching comparison method. A novel multimodality framework was developed and validated using MR and X-ray images of the breast phantom before being applied to clinical breast images. Using this framework, it was shown that the parameters of the model (boundary conditions, mechanical properties) could be estimated and the image alignment improved. The biomechanical modelling framework presented in this thesis was shown to reliably simulate both prone to supine reorientation, and prone to mammographic compression, deformations. This capability has the potential to help breast radiologists interpret information from MR and X-ray mammography imaging in a common visualisation environment. In future, ultrasound imaging could also be incorporated into this modelling framework to aid clinicians in the diagnosis and management of breast cancer.
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47

Yilmaz, Bulent. "Stochastic Approach To Fusion Dynamics." Phd thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/12608517/index.pdf.

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This doctoral study consists of two parts. In the first part, the quantum statistical effects on the formation process of the heavy ion fusion reactions have been investigated by using the c-number quantum Langevin equation approach. It has been shown that the quantum effects enhance the over-passing probability at low temperatures. In the second part, we have developed a simulation technique for the quantum noises which can be approximated by two-term exponential colored noise.
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48

Lundquist, Christian. "Sensor Fusion for Automotive Applications." Doctoral thesis, Linköpings universitet, Reglerteknik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-71594.

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Mapping stationary objects and tracking moving targets are essential for many autonomous functions in vehicles. In order to compute the map and track estimates, sensor measurements from radar, laser and camera are used together with the standard proprioceptive sensors present in a car. By fusing information from different types of sensors, the accuracy and robustness of the estimates can be increased. Different types of maps are discussed and compared in the thesis. In particular, road maps make use of the fact that roads are highly structured, which allows relatively simple and powerful models to be employed. It is shown how the information of the lane markings, obtained by a front looking camera, can be fused with inertial measurement of the vehicle motion and radar measurements of vehicles ahead to compute a more accurate and robust road geometry estimate. Further, it is shown how radar measurements of stationary targets can be used to estimate the road edges, modeled as polynomials and tracked as extended targets. Recent advances in the field of multiple target tracking lead to the use of finite set statistics (FISST) in a set theoretic approach, where the targets and the measurements are treated as random finite sets (RFS). The first order moment of a RFS is called probability hypothesis density (PHD), and it is propagated in time with a PHD filter. In this thesis, the PHD filter is applied to radar data for constructing a parsimonious representation of the map of the stationary objects around the vehicle. Two original contributions, which exploit the inherent structure in the map, are proposed. A data clustering algorithm is suggested to structure the description of the prior and considerably improving the update in the PHD filter. Improvements in the merging step further simplify the map representation. When it comes to tracking moving targets, the focus of this thesis is on extended targets, i.e., targets which potentially may give rise to more than one measurement per time step. An implementation of the PHD filter, which was proposed to handle data obtained from extended targets, is presented. An approximation is proposed in order to limit the number of hypotheses. Further, a framework to track the size and shape of a target is introduced. The method is based on measurement generating points on the surface of the target, which are modeled by an RFS. Finally, an efficient and novel Bayesian method is proposed for approximating the tire radii of a vehicle based on particle filters and the marginalization concept. This is done under the assumption that a change in the tire radius is caused by a change in tire pressure, thus obtaining an indirect tire pressure monitoring system. The approaches presented in this thesis have all been evaluated on real data from both freeways and rural roads in Sweden.
SEFS -- IVSS
VR - ETT
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49

Batty, Elizabeth. "Fusion genes in breast cancer." Thesis, University of Cambridge, 2012. https://www.repository.cam.ac.uk/handle/1810/241721.

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Fusion genes caused by chromosomal rearrangements are a common and important feature in haematological malignancies, but have until recently been seen as unimportant in epithelial cancers. The discovery of recurrent fusion genes in prostate and lung cancer suggests that fusion genes may play an important role in epithelial carcinogenesis, and that they have been previously under-reported due to the difficulties of cytogenetic analysis of solid tumours. In particular, breast cancers often have complex, highly rearranged karyotypes which have proved difficult to analyse using classical cytogenetic techniques. The aim of this project was to search for fusion genes in breast cancer by using high-resolution mapping of chromosome rearrangements in breast cancer cell lines. Mapping the chromosome rearrangements was initially done using high-resolution DNA microarrays and fluorescence in-situ hybridisation, but moved to high-throughput sequencing as it became available. Interesting candidate genes identified from the mapped chromosome rearrangements were investigated on a larger set of cell lines and primary tumours. The complete karyotypes of two breast cancer cell lines were constructed using a combination of microarrays, fluorescence microscopy, and high-throughput sequencing. A number of potential fusion genes were identified in these two cell lines. Although no expressed fusion genes were found, the complete karyotypes gave insight into the number and mechanisms of chromosome rearrangement in breast cancer, and identified interesting candidate genes which may be of importance in tumourigenesis. Two genes which were fused in other breast cancer cell lines, BCAS3 and ODZ4, were disrupted by chromosome rearrangements and identified as interesting candidate genes in tumorigenesis. A bioinformatic pipeline to process high-throughput sequencing data was set up and validated, and shown to more accurately predict fusion genes than other methods, and can be used to investigate further cell lines and tumours for recurrent fusion genes. The pipeline was used to analyse data from 3 other breast cancer cell lines and predict chromosomal rearrangements and fusion genes, several of which were found to be expressed. Of the fusions predicted in the cell line ZR-75-30, 7 expressed fusion genes were identified, and may have functional significance in breast cancer.
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50

Wang, Fengzhen. "Neural networks for data fusion." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp02/NQ30179.pdf.

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