Rozprawy doktorskie na temat „Monopole”
Kliknij ten link, aby zobaczyć inne rodzaje publikacji na ten temat: Monopole.
Utwórz poprawne odniesienie w stylach APA, MLA, Chicago, Harvard i wielu innych
Sprawdź 50 najlepszych rozpraw doktorskich naukowych na temat „Monopole”.
Przycisk „Dodaj do bibliografii” jest dostępny obok każdej pracy w bibliografii. Użyj go – a my automatycznie utworzymy odniesienie bibliograficzne do wybranej pracy w stylu cytowania, którego potrzebujesz: APA, MLA, Harvard, Chicago, Vancouver itp.
Możesz również pobrać pełny tekst publikacji naukowej w formacie „.pdf” i przeczytać adnotację do pracy online, jeśli odpowiednie parametry są dostępne w metadanych.
Przeglądaj rozprawy doktorskie z różnych dziedzin i twórz odpowiednie bibliografie.
1
Moriyama, Sanefumi. "Noncommutative Monopole from Nonlinear Monopole". 京都大学 (Kyoto University), 2002. http://hdl.handle.net/2433/149975.
Pełny tekst źródła
2
Temple-Raston, Mark Renwick. "Monopole motions". Thesis, University of Cambridge, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.276584.
Pełny tekst źródła
3
Somogyi, Robert. "Essays on capacity-constrained pricing". Thesis, Université Paris-Saclay (ComUE), 2016. http://www.theses.fr/2016SACLX024/document.
Pełny tekst źródłaStreszczenie:
Cette thèse est composée de trois chapitres. Le premier chapitre, "Bertrand-Edgeworth Competition with Substantial Product Differentiation", étudie le comportement d'un duopole lorsque les deux entreprises sont caractérisées par des contraintes de capacité et produisent un bien différencié à la Hotelling. En limitant l'analyse au cas d'un degré élevé de différentiation du produit, je démontre l'existence d'au moins un équilibre en stratégie pure pour tous les niveaux de capacités. Le deuxième chapitre, "Monopoly Pricing with Dual Capacity Constraints" analyse un monopole qui est contraint par deux types de contraintes de capacité: un sur la quantité produite, l'autre sur le nombre des consommateurs. Je démontre que les prix optimaux choisis par les entreprises en court terme ne sont pas monotones dans le niveau des contraintes de capacité. En outre, le bien-être agrégé des consommateurs peut décroître si une des contraintes de capacité est augmentée. Le troisième chapitre, "Competition with Dual Capacity Constraints", étend l'analyse du deuxième chapitre au cas du duopole symétrique dans lequel les deux entreprises font face aux mêmes niveaux de capacité. Je démontre l'existence de conditions sous lesquelles la non-monotonicité des prix et du bien-être des consommateurs observée dans le 2ème chapitre est également présente dans le cas du duopole. Certains équilibres donnent naissance à des prix de duopole égaux au prix de monopole. En outre, les entreprises peuvent choisir des prix d'équilibre identiques sur les deux marchés malgré leur pouvoir de discrimination des prixThis Ph.D. thesis is composed of three chapters. Since Kreps and Scheinkman's seminal article (1983) a large number of papers have analyzed capacity constraints' potential to relax price competition. However, the majority of the ensuing literature has assumed that products are either perfect or very close substitutes. Therefore very little is known about the interaction between capacity constraints and local monopoly power. The aim of the present paper is to shed light on this question using a standard Hotelling setup. The high level of product dierentiation results in a variety of equilibrium firm behavior and it generates at least one pure-strategy equilibrium for any capacity level. The second chapter, "Bertrand-Edgeworth Competition with Substantial Product Differentiation", studies the price-setting behavior of a monopoly facing two capacity constraints: one on the number of consumers it can serve, the other on the total amount of products it can sell. Facing two consumer groups that difer in their demands and the distribution of their willingness-to-pay, the monopoly's optimal non-linear pricing strategy consists of offering one or two price-quantity bundles. The characterization of the firm's optimal pricing as a function of its two capacities reveals a rich structure that also gives rise to some surprising results. In particular, I show that prices are non-monotonic in capacity levels. Moreover, there always exists a range of parameters in which weakening one of the capacity constraints decreases consumer surplus. In the long run, when the firms can choose how much capacity to build, prices and consumer surplus are monotonic in capacity costs. The third chapter, "Competition with Dual Capacity Constraints", studies duopoly pricing under dual capacity constraints, limiting both the total quantity and the number of consumers served. It extends both the analysis of monopoly pricing with dual capacity constraints and the symmetric models of Bertrand-Edgeworth competition with a singular capacity. By isolating parameter regions where a symmetric pure-strategy equilibrium exists, I nd that several types of equilibria are possible, depending on the model's specications. For some of them, duopoly prices are identical to monopoly prices. Equilibrium prices are non-monotonic in capacity levels if consumers' valuations are suciently heterogeneous. Moreover, I show that despite their ability to price discriminate, competition may lead firms to charge identical prices across markets
4
Sakarya, Emre. "Kaluza-klein Monopole". Master's thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/12608673/index.pdf.
Pełny tekst źródłaStreszczenie:
Kaluza-Klein theories generally in $(4+D)$ and more specifically in five dimensions are reviewed. The magnetic monopole solutions found in the Kaluza-Klein theories are generally reviewed and their generalizations to Anti-de Sitter spacetimes are discussed.
5
de, Vries Erik Jan. "Supersymmetric monopole dynamics". Thesis, Heriot-Watt University, 2009. http://hdl.handle.net/10399/2230.
Pełny tekst źródłaStreszczenie:
We study the supersymmetric quantum mechanics of monopoles in bosonic, N = 2 and N = 4 supersymmetric Yang-Mills-Higgs theory, with particular emphasis on monopoles of charge{(1; 1) in a theory with gauge group SU(3) spontaneously broken to U(1) £ U(1). In the moduli space approximation, the quantum states of bosonic monopoles can be described by functions on the moduli space. For N = 2 supersymmetric monopoles, quantum states can be interpreted as either spinors or anti-holomorphic forms on the moduli space. The quantum states of the N = 4 supersymmetric monopole correspond to general di®erential forms on the moduli space. In each case, we review the moduli space approximation and derive general expressions for the supercharges as di®erential operators. In the geometrical language of forms on the moduli space, the Hamiltonian is proportional to the Laplacian acting on forms. We propose a general expression for the total angular momentum operator and verify its commutation relations with the supercharges. We use the known metric structure of the moduli space of charge{(1; 1) monopoles to show that there are no quantum bound states of such monopoles in the moduli space approximation. We exhibit scattering states and compute the corresponding di®er- ential cross sections. Using the general expressions for the supercharges we construct the short supermultiplet of supersymmetric monopoles, and study its decomposition under the proposed angular momentum operator.
6
Philippe, Alice. "Le monopole de fait". Thesis, Toulouse 1, 2018. http://www.theses.fr/2018TOU10064.
Pełny tekst źródłaStreszczenie:
Le monopole de fait est consacré au neuvième alinéa du Préambule de la Constitution du 27 Octobre 1946, selon lequel : « tout bien, toute entreprise, dont l’exploitation a ou acquiert les caractères d’un service public national ou d’un monopole de fait, doit devenir la propriété de la collectivité ». Sous une apparente clarté, la formulation n’en est pas moins énigmatique pour le juriste. Si cette disposition a semblé justifier les nationalisations (ce qui explique le caractère ponctuel des études qui lui sont portées), la condamnation du monopole de fait relève d’une logique intemporelle : celle de la concordance des mécanismes de marché avec la réalisation de l’intérêt général. C’est notamment ce que font sourdre les origines, tout à la fois économiques et politiques, du monopole de fait ; cet euphémisme utile pour mieux désigner les féodalités économiques et la défaillance de marché. Le monopole de fait est une menace, et lorsqu’il sévit il empêche la réalisation d’une démocratie économique et sociale. Faut-il mentionner ces entreprises qui, disposant d’un pouvoir de marché d’envergure, optent pour des stratégies d’entreprise agressives. Les GAFA, les banques et les assurances, les opérateurs historiques dans les secteurs de réseaux, les géants de l’agroalimentaire, sont autant d’exemples flagrants de monopole de fait. C’est donc sans détour qu’il faut le condamner par l’appropriation collective. Notion qui se meut aux confins du droit et de l’économie, le monopole de fait constitue la pierre angulaire de ce que l’on pourrait qualifier de droit du marché. Ce droit qui viendrait pallier, mutatis mutandis, aux défaillances de marché. Rien de plus nécessaire, alors, que de caractériser le monopole de fait. Or en la matière, les différentes situations possibles présentent toutes une même caractéristique et tendent toutes au même résultat : il s’agit de l’exercice abusif d’un pouvoir de marché, aboutissant à la constitution d’une rente de situation, à la confiscation d’une rente de situation. Ce sont ces deux aspects combinés qui permettent d’identifier le monopole de fait, en droit. Fort de cette première découverte, la sanction par l’appropriation collective ne peut qu’être redéfinie. L’approche purement propriétaire qui prévalait permettait en substance l’appropriation collective (parce que les propriétés publiques sont, plus que les autres, tenues par l’intérêt général). Mais elle est reléguée, dans cette étude, à une place subsidiaire, au profit d’une analyse plus pragmatique mettant l’accent sur les différentes parties en présence, le déséquilibre de pouvoir existant entre elles, et les intérêts lésés par le monopole de fait. Pour faire écho au neuvième alinéa du Préambule de 1946, on pourrait dire que le régime applicable au monopole de fait doit permettre aux parties prenantes de de pouvoir se constituer en véritable contre-pouvoir vis-à-vis des entreprises qui, abusant elles-mêmes de leur pouvoir de marché, heurtent leurs intérêtsThe "monopole de fait" is promoted in the French Constitution’s 9th preambular paragraph of October 27, 1946, according to which: "any good, any enterprise, whose exploitation has or acquires the characteristics of a national public service or a "monopole de fait", must become the property of the collectivity". In apparent clarity, the wording is nonetheless enigmatic for the jurist. While this policy seemed to justify nationalization (which explains the punctual nature of the studies that are made to it), the condemnation of the "monopole de fait" is a timeless logic: that of the participation of the market to the realization of the public interest. This is what the origins of the "monopole de fait", both economic and political, leads to. This euphemism, is useful to precisely designate economic feudalism and market failure. The "monopole de fait" is a threat, and when it is rife it prevents the realization of what the French scholars called an economic and social democracy. Should we mention those companies which, having a large market power, opt for aggressive corporate strategies; GAFA, banks and insurance companies, the incumbent operators in the network sectors, the agribusiness giants, are all flagrant examples of "monopole de fait". It is therefore straightforward that we must condemn it by collective appropriation. Notion that moves to the confines of law and economics, the "monopole de fait" is the cornerstone of what could be called market law. This branch of law would mitigate, mutatis mutandis, market failures. Nothing morenecessary, then, than to characterize the "monopole de fait". In this field, the different situations all have the same characteristic and all tend to achieve the same result: it is an abusive exploitation resulting in a rent situation. It is these two aspects combined that make possible the identification of "monopole de fait", in law. Strong of this first step, the sanction through collective appropriation must be redefined. The purely proprietary approach that prevailed allowed, in part, collective appropriation (because public property is, more than the others, held by the public interest). But it is neglected in this study in favor of a more pragmatic analysis focusing on the various parties involved and the legitimate interests harmed by "monopole de fait". To echo the 1946’s 9th preambular paragraph, it could be said that the de facto monopoly regime must enable stakeholders to assert their right (s) against companies
7
Borg, André. "Le monopole officinal : étude sur l’influence du monopole officinal sur l’exercice professionnel du pharmacien". Thesis, Aix-Marseille, 2020. http://www.theses.fr/2020AIXM0333.
Pełny tekst źródłaStreszczenie:
Le monopole officinal français est un privilège assorti d’importantes contreparties et obligations que seul un pharmacien peut revêtir. Qualifié d’exception pharmaceutique, il est destiné à satisfaire la protection de la santé publique. Actuellement, le secteur officinal traverse une crise profonde et se trouve à un tournant majeur de son évolution. Le modèle actuel semble inadapté et obsolète pour faire face aux enjeux et défis de la profession. Est-il encore susceptible de perdurer tel qu’il existe ? De plus en plus réduit en dépit d’exigences toujours aussi importantes, il est fragmenté à tel point que la structuration du réseau de distribution au détail du médicament s’est transformée en un objet non identifié. Hésitation entre activité commerçante et activité libérale, remise en cause du principe d’indivisibilité, le pharmacien évolue dans un cadre normatif désormais peu porteur pour ne pas dire récessif. Sujet à dérives et controverses, le dispositif français est remis en cause tant d’un point national que communautaire. Et si cette remise en cause ne constituerait elle pas une opportunité pour le pharmacien plutôt qu’une fatalité ?The French pharmacist monopoly is a privilege with important counterparts and obligations that only a pharmacist can assume. Qualified as a pharmaceutical exception, it is intended to meet the protection of public health. Currently, the pharmacy sector is going through a deep crisis and is at a major turning point in its development. The current model seems unsuitable and obsolete to face the issues and challenges of the profession. Is it still likely to endure as it exists? Increasingly small despite ever-increasing demands, it is fragmented to such an extent that the structuring of the drug's retail distribution network has turned into an unidentified object. Hesitation between commercial activity and liberal activity, questioning of the principle of indivisibility, the pharmacist evolves within a normative framework which is no longer buoyant, not to say recessive. Subject to excesses and controversies, the French system is called into question both from a National and Community point of view. What if this questioning would not constitute an opportunity for the pharmacist rather than an inevitability?
8
Lourens, Jako. "A wideband monopole antenna design". Thesis, Stellenbosch : Stellenbosch University, 2013. http://hdl.handle.net/10019.1/80026.
Pełny tekst źródłaStreszczenie:
Thesis (MScEng)--Stellenbosch University, 2013.ENGLISH ABSTRACT: The successful operation of a man-pack VHF jamming system requires a compact and efficient antenna operating over a wide bandwidth. The design of such an antenna is the focus of this thesis. The antenna should be of a practical size for a portable system and it must radiate energy efficiently across a frequency bandwidth in excess of a decade. A practical „target‟ specification of such an antenna has been drawn up based on the performance of a commercially available system. Several possible antenna topologies, each with a variety of loading section options, are tested using “Full wave” electromagnetic modelling (FEKO). Each topology/loading-section is numerically optimised for load element values by considering both its gain and reflection coefficient. Results of the „optimally loaded‟ solution for each topology are then compared to each other to arrive at the best overall design. The best result is found to be the traditional monopole whip-type antenna, with four R-L loading sections spread along its length. The simulated results show that the proposed antenna can be expected to meet the target standing wave ratio (SWR) specifications while offering a gain advantage of between 5 and 10 dBi higher than is available commercially. The selected design is constructed and its performance measured.
AFRIKAANSE OPSOMMING: Die suksesvolle werking van ʼn mobiele VHF "jammer‟ benodig ʼn kompakte antenna met ʼn bruikbare benuttingsgraad wat oor ʼn wyeband funksioneer. Die ontwerp van so ʼn antenna is die fokus van hierdie tesis. Die antenna moet kompak genoeg wees om draagbaar te wees en moet ʼn bruikbare benuttingsgraad hê oor ʼn frekwensie-bandwydte van meer as 10:1. ʼn Praktiese spesifikasie is opgestel vir die antenna deur te kyk na die sigblaaie van beskikbare stelsels. “Volgolf” elektromagnetiese modelleringsagteware is daarna gebruik om ʼn parametriese ondersoek te loods van verskillende antennas. Verskillende topologieë is getoets met ʼn verskeidenheid van belaaide seksies waar die topologieë ge-optimaliseer was vir wins en weerkaatskoëffisiënt. Die resultate vir elke optimale oplossing is vergelyk.Opgrond van hierdie resultate is bevind dat die beste topologie die tradisionele monopoolmas "whip-type‟ antenna is met vier RL lading afdelings langs die lengte versprei. Analise word gebruik om te wys dat verwag kan word dat dit aan die aanwins en staande golf verhouding (SGV) spesifikasies sal voldoen met n 10 dB verhoging in aanwins vir n laer SGV. Die geselekteerde ontwerp is gebou en gemeet om te verifieer dat dit aan die spesifikasies voldoen.
9
DAS, GUPTA SHINJINEE. "Electric Monopole Transition in 160Er". Doctoral thesis, Università degli Studi di Camerino, 2011. http://hdl.handle.net/11581/401864.
Pełny tekst źródła
10
Kronenberger, Vincent. "Le monopole des alcools en Finlande : exemple de la mutation des monopoles publics en droit communautaire". Toulouse 1, 1999. http://www.theses.fr/1999TOU10001.
Pełny tekst źródłaStreszczenie:
Le monopole public des alcools en Finlande a connu une transformation sans précédents depuis l'adhésion de la Finlande à la communauté européenne en 1995. Poursuivant un objectif de protection de la santé publique, l'entreprise monopolistique fut dotée d'un large éventail d'exclusivités et de privilèges. Ne subsiste aujourd'hui que le monopole de commercialisation au détail, structurellement séparé des autres activités de l'ancien monopole intégré. Cette étude sur le monopole finlandais, particulièrement intéressant, dresse une typologie puis érige un modèle de la mutation des monopoles publics en droit communautaire, applicable à tous les secteurs monopolistiques actuellement en cours de libéralisation (postes, ferroviaire, électricité. . . ). Retenant une acception fonctionnelle et institutionnelle du monopole public, cette recherche isole quatre modalités de mutation regroupées en deux catégories. D'une part, une mutation fonctionnelle par un processus de libéralisation puis la séparation des activités économiques et de police spéciale du monopole. Le monopole est circonscrit, mais pas nécessairement condamné : la jurisprudence récente l'atteste. D'autre part, une mutation institutionnelle par la désintégration puis la distanciation du monopole de l'État. L'isolement devient alors plus prononcé. Au final, par delà les bases juridiques du traité CE, l'exemple du monopole finlandais des alcools rend compte d'une véritable politique juridique des institutions communautaires. L'interprétation audacieusement libérale du traité laisse aujourd'hui la place à une approche qui tolère davantage le monopole, tout en l'isolant. Cette phase ne saurait cependant constituer l'aboutissement de l'évolution du droit communautaireThe Finnish alcohol monopoly has gone through an unprecedented transformation following Finland’s accession to the European community in 1995. Pursuing a public health mission, the state monopoly had obtained extensive exclusive rights and privileges. Today, there remains only the retail sale monopoly which is entirely independent from other parts of the formerly integrated monopoly. This research on the particularly interesting example of the Finnish monopoly, draws up a typology and sets a model for transformation of state monopolies in EC law, which is applicable to all monopolistic sectors currently under liberalisation (postal services, railways, electricity. . . ). This study retains both a functional and institutional definition of state monopolies and therefore of their transformation. First, a functional transformation consisting in both liberalisation and separation of economical and regulatory functions of the monopoly. The shape of the monopoly is reduced but its existence is not necessarily condemned, as recent case-law indicates. Second, an institutional transformation: unbundling and + distanciation; from the state. The monopoly is even more isolated. In the end, besides the EC treaty's legal basis, the Finnish monopoly example reveals a genuine judicial policy of community institutions towards monopolies. The former daringly liberal interpretation of the treaty has been replaced today by a more neutral approach which tolerates monopolies, provided their + confinement. However this phase is expected not to be the final step of EC law
11
Schlub, Robert Walter, i n/a. "Practical Realization of Switched and Adaptive Parasitic Monopole Radiating Structures". Griffith University. School of Microelectronic Engineering, 2004. http://www4.gu.edu.au:8080/adt-root/public/adt-QGU20040610.112148.
Pełny tekst źródłaStreszczenie:
Switched and adaptive parasitic monopole array radiating structures are investigated. Antenna design is orientated toward increasing practicability for implementation in terrestrial wireless communication systems. A number of antennas are designed with the aid of optimization and commercial simulation software. Simulation procedure was verified with the experimental manufacture and measurement of the arrays. The antennas presented in this thesis comprise an active monopole surrounded by a ring of parasitic monopoles. Parasitic radiators are constructed with static loading to enable simple experimental realization. Beam positions of an electrically steered equivalent antenna are thus simulated. Antenna symmetry ensures the beam can be reproduced throughout the azimuth. Complex antenna geometries require antenna design through optimization. A genetic algorithm is employed with HFSS and NEC for electromagnetic analysis. The robust optimization method couples with simulation software flexibility to provide an effective design tool for arbitrary structures. The genetic algorithm is employed strictly for design and not complete structural optimization. Dual band, five and six element switched parasitic antennas are presented. Lumped elemental loading along the radiators provide resonance and directed radiation at two GSM frequencies. Load value, radiator dimension and spacing are incorporated as design parameters. Experimentally built, 10dB return loss bandwidths of 17.2% and 9.6% and front to back ratios of 12.6dB and 8.4dB at 900MHz and 1900MHz respectively are measured. To reduce the ground requirements of monopole arrays, a skirted ground structure for switched parasitic antennas is analyzed. A six element switched parasitic monopole array with conductive ground skirt exhibits a front to back ratio of 10.7dB and main lobe gain of 6.4dBi at 1.575GHz. Radiation is not elevated despite lateral ground terminating at the parasitic elements. Skirt height is observed to linearly control radiation elevation, depressing the principal lobe through 40 degrees from 23 degrees above the horizontal. The Electronically Steerable Passive Array Radiator or ESPAR antenna is an adaptive parasitic monopole array. An ESPAR radiating structure incorporating a conductive ground skirt is designed for operation at 2.4GHz. Utility is confirmed with a frequency sensitivity analysis showing consistent electrical characteristics over an 8.1% bandwidth. The antenna design is improved with optimization to reduce average principal lobe elevation from 25 degrees to 9.7 degrees.
12
Schlub, Robert Walter. "Practical Realization of Switched and Adaptive Parasitic Monopole Radiating Structures". Thesis, Griffith University, 2004. http://hdl.handle.net/10072/366803.
Pełny tekst źródłaStreszczenie:
Switched and adaptive parasitic monopole array radiating structures are investigated.
Antenna design is orientated toward increasing practicability for implementation in terrestrial wireless communication systems. A number of antennas are designed with the aid of optimization and commercial simulation software. Simulation procedure was verified with the experimental manufacture and measurement of the arrays. The antennas presented in this thesis comprise an active monopole surrounded by a ring of parasitic monopoles. Parasitic radiators are constructed with static loading to enable simple experimental realization. Beam positions of an electrically steered equivalent antenna are thus simulated. Antenna symmetry ensures the beam can be reproduced throughout the azimuth. Complex antenna geometries require antenna design through optimization. A genetic algorithm is employed with HFSS and NEC for electromagnetic analysis. The robust optimization method couples with simulation software flexibility to provide an effective design tool for arbitrary structures. The genetic algorithm is employed strictly for design and not complete structural optimization. Dual band, five and six element switched parasitic antennas are presented. Lumped elemental loading along the radiators provide resonance and directed radiation at two GSM frequencies. Load value, radiator dimension and spacing are incorporated as design parameters. Experimentally built, 10dB return loss bandwidths of 17.2% and 9.6% and front to back ratios of 12.6dB and 8.4dB at 900MHz and 1900MHz respectively are measured. To reduce the ground requirements of monopole arrays, a skirted ground structure for switched parasitic antennas is analyzed. A six element switched parasitic monopole array with conductive ground skirt exhibits a front to back ratio of 10.7dB and main lobe gain of 6.4dBi at 1.575GHz. Radiation is not elevated despite lateral ground terminating at the parasitic elements. Skirt height is observed to linearly control radiation elevation, depressing the principal lobe through 40 degrees from 23 degrees above the horizontal. The Electronically Steerable Passive Array Radiator or ESPAR antenna is an adaptive parasitic monopole array. An ESPAR radiating structure incorporating a conductive ground skirt is designed for operation at 2.4GHz. Utility is confirmed with a frequency sensitivity analysis showing consistent electrical characteristics over an 8.1% bandwidth. The antenna design is improved with optimization to reduce average principal lobe elevation from 25 degrees to 9.7 degrees.Thesis (PhD Doctorate)
Doctor of Philosophy (PhD)
School of Microelectronic Engineering
Full Text
13
Dougall, Triston. "Monopole pair production via photon fusion". Ann Arbor, Mich. : ProQuest, 2007. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:1440255.
Pełny tekst źródłaStreszczenie:
Thesis (M.S. in Physics)--S.M.U., 2007.Title from PDF title page (viewed Mar. 18, 2008). Source: Masters Abstracts International, Volume: 45-02, page: 0889. Adviser: Jingbo Ye. Includes bibliographical references.
14
Heinemann, Andreas. "Grenzen staatlicher Monopole im EG-Vertrag /". München : Beck, 1996. http://www.gbv.de/dms/spk/sbb/recht/toc/27220174X.pdf.
Pełny tekst źródła
15
Nash, Oliver. "Differential geometry of monopole moduli spaces". Thesis, University of Oxford, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.437029.
Pełny tekst źródła
16
Vuillemin, Karine. "Du monopole des sociétés de Bourse". Paris 2, 1993. http://www.theses.fr/1993PA020133.
Pełny tekst źródłaStreszczenie:
Pendant plus de deux cent cinquante ans, les bourses francaises ont ete constituees de la reunion physique des agents de change qui avaient le monopole de la negociation des valeurs mobilieres et dont le nombre etait limite par l'autorite publique. La reforme boursiere issue de la loi du vingt deux janvier mil neuf cent quatre vingt huit a profondement modifie ce systeme. Elle a remplace les agents de change, officiers ministeriels, par des societes de bourse. Elle a maintenu un monopole de negociation au profit de ces nouveaux membres de bourse et a paru supprimer le numerus clausus. Or, l'evolution posterieure tend a faire disparaitre le monopole et a l'inverse a reintroduire avec la notion de siege de marche une nouvelle forme de selection des membres de bourse. Elle semble confirmee par la legislation communautaireThe french markets were made up for over two and a half centuries of the physical grouping of stock brokers who had a monopoly for market transactions and whose numbers where limited by the authorities. The market reform resulting from the january twenty twoth, nineteen hundred eighty height law has caused in-depth change in the system. It has resulted in the stock brokers, i. E. Law officials, being replaced bybrokerage firms. The monopoly for transactions was sustained in favor of the latter, and the numerus clausus seems to have been abolishe nevertheless, the monopoly hazs tended to disapeear ever since, whereas a new form of member firms selection has tended to be reintroduced through the "seat" concept. The european community seems to be confirmed this trend
17
Marchiani, Charles-Stéphane. "Le monopole de l'Etat sur l'expropriation". Paris 2, 2007. http://www.theses.fr/2007PA020008.
Pełny tekst źródłaStreszczenie:
En édictant la déclaration d’utilité publique, l’État décide d’une expropriation. Il est seul à exercer le pouvoir d’exproprier. Ce monopole tranche avec la pluralité des acteurs de l’expropriation et détone par son imperméabilité aux réformes. Assurément, le monopole de l’État plonge ses racines dans l’histoire. Dès l’instant où l’État devenait le titulaire de la souveraineté, le droit d’exproprier, attribut de souveraineté, ne devait plus quitter le champ de ses compétences. En revanche, les arguments constitutionnels déclarés de ce monopole sont plus fragiles. Ni les exigences de l’article 17 de la Déclaration de 1789, ni la jurisprudence constitutionnelle sur l’égalité dans la garantie des droits, ne le justifient. Face à cette absence de fondement juridique, le régime du pouvoir d’exproprier en droit administratif révèle que ce pouvoir serait par essence régalien. En effet, la jurisprudence a consacré une compétence discrétionnaire des autorités étatiques et une responsabilité irréductible en cas d’expropriation illégale. En outre, le monopole de l’État porte, au-delà du principe, sur les modalités de l’expropriation. Ici, l’apport historique est éclairant : la souveraineté subsume le pouvoir d’exproprier. Elle explique l’exclusivité étatique. Il n’est alors pas impossible de supposer l’existence d’un principe fondamental reconnu par les lois de la République en vertu duquel le pouvoir d’exproprier étant inséparable des prérogatives de souveraineté, la déclaration d’utilité publique, qui en est l’expression, compète obligatoirement à l’État.
18
Badra, Yassine. "Equilibres de Nash en Prix avec Stocks d’Invendus, Monopole et Bien-être". Thesis, Paris 2, 2018. http://www.theses.fr/2018PA020066.
Pełny tekst źródłaStreszczenie:
Après une introduction générale et une revue de littérature (chapitre 1), l’apport de cette thèse est de déterminer le rôle de la demande dans l’émergence d’un stock de marchandises invendues. Les préférences des consommateurs sont modifiées puisqu’elles prennent en compte non seulement les quantités consommées mais également celles étalées. Le cadre d’analyse de cette thèse est celui d’un jeu stratégique à deux joueurs en univers certain, avec prix flexibles et information parfaite. Deux types de consommateurs sont considérés : certains apprécient l’étalage et d’autres non. Un monopole modifié choisit à la fois le prix et l’étalage. Les propriétés de l’équilibre de Nash en stratégies pures sont étudiées. Le chapitre 2 présente un modèle de détermination du mark-up optimal pour n’importe quelle valeur de l’élasticité prix de la demande (contrairement à l’indice de Lerner qui peut être utilisé uniquement pour les biens élastiques). Le chapitre 3, étend le second, en déterminant le coefficient multiplicateur optimal en présence de stocks d’invendus. Il permet de définir la solde optimale. Le quatrième et dernier chapitre détermine les conditions sur les fonctions d’utilité qui permettent de générer un stock d’invendus à l’équilibre de Nash en stratégies pures. Les modèles développés sont élargis au cas où un planificateur social intervient dont l’objectif est de maximiser le bien-être de l’économieAfter a general introduction and a survey of literature, the contribution of this thesis is to determine the role of the demand in the emergence of unsold stock of goods based on consumer’s preferences argument. Throughout the thesis, we consider a strategic game with two players under perfect information, certainty and price flexibility. Consumers are of two types: with appreciation to the display and without. A modified monopoly chooses both the price and the display. Chapter 2 presents an original model to determine the optimal markup for both elastic and inelastic goods (unlike the Lerner index that is used only for elastic goods). Chapter 3 is an extension of the previous one. It is about the determination of an optimal markup with the presence of unsold stock of goods. The fourth and final Chapter analyzes under which conditions an unsold stock of goods is supported by a pure strategy Nash equilibrium. All the models developed present a welfare analysis
19
Tränkle, Stefan. "Halten kantonale Monopole einer strengen Verhältnismässigkeitsprüfung stand?" St. Gallen, 2008. http://www.biblio.unisg.ch/org/biblio/edoc.nsf/wwwDisplayIdentifier/04605655004/$FILE/04605655004.pdf.
Pełny tekst źródła
20
Sun, Xiaolei, i 孙肖磊. "Dual-band and frequency-reconfigurable monopole antennas". Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2013. http://hub.hku.hk/bib/B50899880.
Pełny tekst źródłaStreszczenie:
The designs of three compact dual-band monopole antennas for wireless-local-area-network (WLAN)applications are presented. In these designs, an L-or U-shaped monopole element with microstrip-fed is used to generate a high-frequency band at around 5.5 GHz to cover the high WLAN bands at 5.2/5.8GHz for the IEEE 802.11a standard. An E-shaped element, loop element or meander-microstrip ground stub element with coupled-fed through the monopole element is used to generate a low-frequency band at around 2.4 GHz to cover the low WLAN band for the IEEE 802.11b/g standards. With such arrangements, the three antenna shave very compact radiators of only 11.3×8 mm2,12.6×9 mm2and11.8×9.4 mm2. To investigate the performances for practical uses, these antennas are also designed on a mobile-phone printed-circuit board and studied using computer simulation and measurement.
Dual-band antennas with reconfigurable
Dual-band antennas with reconfigurable lower band, higher band and dual-band are designed in this thesis. The dual-band antenna consists of two radiating branches generating the frequency bands at around 2.4 GHz and 3.5 GHz for the WiMAX system. Varactors are placed on the corresponding branches for continuously tuning of the operating bands for different WiMAX standards. For frequency tuning of the lower band or higher band, simple and novel DC biasing circuits without requiring any soldering wire are proposed to bias the varactor on a radiating element. While for simultaneous frequency tuning of the two individual bands, simple and novel DC biasing circuits requiring two soldering wires are proposed to bias the varactors on the radiating elements. Both simulation and measurement results show that the DC biasing circuits designed have very little affects on the antennas performances.
The design of a monopole ultra-wide band (UWB)antenna with a reconfigurable notch band is presented. The antenna employs a vertical-ellipse radiator to achieve an UWB. A compact defected-ground structure (DGS)is used to create a notch band for the antenna. To frequency tune the notch band, a varactor is placed on the DGS to control the resonance frequency. The tuning performance, in terms of reflection coefficient, radiation pattern, efficiency and gain, of the antennais studied using simulation and measurement. Results show that the notch band can be tuned continuously from 5.2 to 6.32 GHz for the WLAN bands.
In the measurement of a monopole antenna with a small ground plane, the feeding cable used to connect the antenna to the measurement equipment Satimo Starlab system causes discrepancies between the simulated and measured radiation patterns, efficiencies and peak gains at lower frequencies. In the designs of antennas in this thesis, the cable effects are studied by modeling the feeding cable using the EM simulation tool CST. Results show that, by using the cable model, the simulated and measured results agree very well.published_or_final_version
Electrical and Electronic Engineering
Doctoral
Doctor of Philosophy
21
Davies, N. Michael. "Semiclassical monopole calculations in supersymmetric gauge theories". Thesis, Durham University, 2000. http://etheses.dur.ac.uk/4360/.
Pełny tekst źródłaStreszczenie:
We investigate semiclassical contributions to correlation functions in N = 1 supersymmetric gauge theories. Our principal example is the gluino condensate, which signals the breaking of chiral symmetry, and should be exactly calculable, according to a persymmetric non-renormalisation theorem. However, the two calculational approaches previously employed, SCI and WCI methods, yield different values of the gluino condensate. We describe work undertaken to resolve this discrepancy, involving a new type of calculation in which the space is changed from R(^4) to the cylinder R(3) x S(1) This brings control over the coupling, and supersymmetry ensures that we are able to continue to large radii and extract answers relevant to R(^4). The dominant semiclassical configurations on the cylinder are all possible combinations of various types of fundamental monopoles. One specific combination is a periodic instanton, so monopoles are the analogue of the instanton partons that have been conjectured to be important at strong coupling. Other combinations provide significant contributions that are neglected in the SCI approach. Monopoles are shown to generate a superpotential that determines the quantum vacuum, where the theory is confining. The gluino condensate is calculated by summing the direct contributions from all fundamental monopoles. It is found to be in agreement with the WCI result for any classical gauge group, whereas the values for the exceptional groups have not been calculated before. The ADS superpotential, which describes the low energy dynamics of matter in a supersymmetric gauge theory, is derived using monopoles for all cases where instantons do not contribute. We report on progress made towards a two monopole calculation, in an attempt to quantify the missed contributions of the SCI method. Unfortunately, this eventually proved too complicated to be feasible.
22
Schreiber, Adam Wesley. "Efficient analysis of loaded cylindrical monopole antennas". Connect to this title online, 2009. http://etd.lib.clemson.edu/documents/1256570757/.
Pełny tekst źródła
23
Kemp, Graham. "Algebra and geometry of Dirac's magnetic monopole". Thesis, Loughborough University, 2013. https://dspace.lboro.ac.uk/2134/12508.
Pełny tekst źródłaStreszczenie:
This thesis is concerned with the quantum Dirac magnetic monopole and two classes of its generalisations. The first of these are certain analogues of the Dirac magnetic monopole on coadjoint orbits of compact Lie groups, equipped with the normal metric. The original Dirac magnetic monopole on the unit sphere S^2 corresponds to the particular case of the coadjoint orbits of SU(2). The main idea is that the Hilbert space of the problem, which is the space of L^2-sections of a line bundle over the orbit, can be interpreted algebraically as an induced representation. The spectrum of the corresponding Schodinger operator is described explicitly using tools of representation theory, including the Frobenius reciprocity and Kostant's branching formula. In the second part some discrete versions of Dirac magnetic monopoles on S^2 are introduced and studied. The corresponding quantum Hamiltonian is a magnetic Schodinger operator on a regular polyhedral graph. The construction is based on interpreting the vertices of the graph as points of a discrete homogeneous space G/H, where G is a binary polyhedral subgroup of SU(2). The edges are constructed using a specially selected central element from the group algebra, which is used also in the definition of the magnetic Schrodinger operator together with a character of H. The spectrum is computed explicitly using representation theory by interpreting the Hilbert space as an induced representation.
24
Åberg, Lindell Matilda. "Magnetic Monopole Searches : with AMANDA and other detectors". Thesis, Uppsala University, Nuclear and Particle Physics, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-125649.
Pełny tekst źródłaStreszczenie:
Magnetic monopoles are hypothetical particles carrying isolated magnetic charges, analogous to electrically charged particles. They have never been observed in experiments, but there are theoretical indications that they might exist. Several experiments have been carried out over the years in order to detect monopoles, or to set upper limits on their abundance in the Universe.
In this work, underlying theory of the properties of magnetic monopoles is presented, together with some of the experiments performed in the past, the present and the future. Emphasis is put on AMANDA and other Cherenkov neutrino telescopes. Results of the described experimental searches are summarized.
25
Rol, Jan. "Characterization of monopole induced air showers using CORSIKA". Thesis, Uppsala universitet, Högenergifysik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-328049.
Pełny tekst źródłaStreszczenie:
In this thesis a characterization of air showers induced by magnetic monopoles is presented. Monopoles are predicted to exist and be accelerated to relativistic velocities. High energy monopoles traversing earth’s atmosphere continuously deposit energy, inducing an air shower. These air showers have been described based on simulations run in CORSIKA. It was found that monopole air showers are continuous; they plateau after the shower maximum, and have a large electromagnetic component. As such,they can easily be distinguished from normal cosmic rays and most other air shower sources. Very high energy photons and muons could induce similar showers but do not produce identical signals in track-following detectors such as IceCube.
26
Shen, Zhongxiang. "Modal expansion analysis of monopole and microstrip antennas". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0009/NQ30645.pdf.
Pełny tekst źródła
27
Eriksson, Oscar, i Kaj Dahl. "Magnetic Monopole Current in Artificial Square Spin Ice". Thesis, KTH, Skolan för teknikvetenskap (SCI), 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-154229.
Pełny tekst źródłaStreszczenie:
Recent theoretical and experimental results have revealed the existence of magnetic monopoles, in the form of quasi particles, in both condensed matter known as spin ice, as well as in two-dimensional artificial versions of the same material. In this report a two-dimensional Ising model is first examined, then an artificial square spin ice model using a dipole approximation, only taking into account nearest and next nearest neighbors. The Metropolis algorithm is used to obtain the internal energy, specific heat capacity and entropy as functions of temperature. In the latter model the magnetic monopole concentration and monopole current is also simulated. The two models show similar quantitative behavior in the above mentioned physical quantities, and in comparison to previously published results. In the artificial square spin ice model, under the influence of a magnetic field, a rapidly decreasing monopole current is observed, which decreases faster for higher temperatures. The magnitude of the magnetic field plays a significant role in the generation of the monopole current, and no direct effect of the phase transitionis observed.Nya teoretiska och experimentella resultat har uppvisat förekomsten av magnetiska monopoler, i form av kvasi-partiklar, både i kondenserade material kallade spinn-is, och i tvådimensionella artificiella versioner av samma material. I den här rapporten undersöks först en tvådimensionell Isingmodell, därefter en artificiell kvadratisk spinn-is-modell med hjälpav en dipolapproximation, där hänsyn endast tas till närmaste och näst närmaste grannar. Metropolis-algoritmen används för beräkna energi, specifika värmekapaciteten och entropinsom funktioner av temperatur. I den senare modellen simuleras även monopolskoncentrationen och monopolsströmmen. De två modellerna uppvisar snarlikt kvantitativt beteende med avseende på ovan nämnda fysikaliska storheter, jämfört med varandra och tidigare publicerade resultat. Under inverkan av ett magnetfält observeras en snabbt avtagande monopolsström, i den artificiella kvadratiska spinn-is-modellen, som avtar snabbare med högre temperaturer. Storleken på det pålagda magnetfältet har markant betydelse för alstrande av monopolsströmmen, och ingen direkt effekt av fasövergången observeras.
28
Langer, Thomas [Verfasser]. "Monopole als Handlungsinstrumente der öffentlichen Hand. / Thomas Langer". Berlin : Duncker & Humblot, 2019. http://d-nb.info/1238278019/34.
Pełny tekst źródła
29
Blais, Angeline. "Monopole antennas for microwave catheter ablation of the myocardium". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/mq20903.pdf.
Pełny tekst źródła
30
Evitts, Lee J. "Electric monopole transition strengths in the stable nickel isotopes". Thesis, University of Surrey, 2017. http://epubs.surrey.ac.uk/841703/.
Pełny tekst źródłaStreszczenie:
A series of measurements of stable nickel isotopes were performed at the Australian National University in Canberra. Excited states in 58,60,62Ni were populated via inelastic scattering of proton beams delivered by the 14UD Pelletron accelerator. Multiple setups were used in order to determine the structure of low-lying states. The CAESAR array of Compton-suppressed HPGe detectors was used to measure the (E2/M1) mixing ratio of transitions from angular distributions of gamma rays. The Super-e spectrometer was used to measure conversion coefficients for a number of J to J transitions. The data obtained from both devices was combined with previously measured parent lifetimes and branching ratios to determine E0 transition strengths between J-pi transitions. The E0 transition strength for the second 0+ to first 0+ transitions in 60,62Ni have been measured for the first time through internal conversion electron detection. The experimental value of 132(+59,-70) for 62Ni agrees within 2 sigma of the previous result obtained from internal pair formation. However it is likely that the previous experimental results used an outdated theoretical model for internal pair formation emission. This work also represents the first measurements of E0 transition strengths between 2+ states in Ni isotopes. There is generally large E0 strength between the 2+ states, particularly in the second 2+ to first 2+ transition, however there is also a large uncertainty in the measurements owing to the difficulties involved in measuring conversion coefficients. In 62Ni, the E0 transition strength of 172(+62,-77) for the second 2+ to first 2+ transition gives further weight to the argument against the spherical vibrator model, as an E0 transition is forbidden if there is a change of only one phonon. The large measurement also indicates the presence of shape coexistence, complementing the recent experimental work carried out in the neutron-rich Ni isotopes.
31
Bessis, Jean-Louis. "Le Droit pénal des ondes du monopole au pluralisme". Paris 1, 1990. http://www.theses.fr/1990PA010306.
Pełny tekst źródła
32
Omerani, Driss. "Le monopole d'une ressource non-renouvelable en situation d'incertitude". Toulouse 1, 1991. http://www.theses.fr/1991TOU10011.
Pełny tekst źródłaStreszczenie:
Le comportement d'un monopole, effectuant l'extraction d'un stock de ressource épuisable, est examiné sous différentes situations comportant des incertitudes. De cet examen, nous soulignons : tout d'abord, l'impact de l'incertitude sur la façon dont le monopole gère son stock et pratique la discrimination par les prix lorsque la ressource a deux usages distincts. Ensuite, le rôle joué par le stock restant en tant que variable influençant la décision d'autres firmes à offrir un substitut. Enfin, le rôle de l'apprentissage dans les stratégies du monopoleThe behaviour of a monopoly, carrying out the extraction of a stock of an exhaustible resource, is examined under different situations bearing uncertainties. From this exam we firstly underline the impact of the uncertainty on the way the monopoly manages its stock and practices the discrimination through prices when the resource has two distinct uses. Then, the part played by the remaining stock as a variable influencing the decision of other firms to supply a substitute. And finally, the part of learning in the strategies of the monopoly
33
Mouhssine, Najat. "L'exercice illégal de la pharmacie et le monopole pharmaceutique". Bordeaux 1, 1988. http://www.theses.fr/1988BOR1D008.
Pełny tekst źródłaStreszczenie:
Legalement, "nul ne peut exercer la pharmacie s'il ne remplit les conditions exigees a cet effet" (article l. 514). Quiconque enfreint a cette disposition commet le delit d'exercice illegal de la pharmacie, delit prevu et reprime par l'article l. 517 du c. S. P. Or, on assiste depuis un certain temps a un developpement considerable de l'activite de certains grands distributeurs qui, dans le but de briser ce qu'ils considerent comme d'illegitimes restrictions a la concurrence s'attaquent non seulement au marche de la parapharmacie, dont l'exclusivite constituait selon eux une pratique concurrentielle intolerable et illicite, mais surtout a celui des medicaments en commercialisant des produits sans aucune indication sur leur emballage, comme s'il suffisait de ne pas alleguer de proprietes therapeutiques au produit pour en faire un produit non medicamenteux, donc un produit sans danger de consommation courante. Ces nouvelles formes de distribution ont relance le debat sur ce qui revient de droit a l'officine et qui devrait etre vendu librement sans aucun danger pour la sante publique. Au carrefour de cette problematique se trouve la definition juridique du medicament avec toutes ses difficultes d'interpretation et d'application et le monopole pharmaceutique qui parait injustifie pour certains produitsLEGALLY, "NO ONE IS ALLOWED TO PRATISE PHARMACY IF HE DOES NOT FULFIL THE RIQUIRED CONDITIONS FOR THIS PURPOSE" ARTICLE L. 514 OF THE "PUBLIC HEALTH" CODE. WHOEVER INFRINGES THIS CLAUSE COMMITS THE INDICTABLE OFFENCE OF ILLEGAL PRACTISE OF PHARMACY, AN OFFENCE ANTICIPTED AND PENALIZED BY THE L. 517 ARTICLE OF THE "PUBLIC HEALTH" CODE. NOW, WE HAVE BEEN NOTICING SINCE A CERTAIN TIME A CONSIDERABLE DEVELOPMENT OF THE ACTIVITY OF CERTAIN IMPORTANT DISTRIBUTORS WHO, IN ORDER TO "SMACK" WHAT THEY REGARD AS UNLAWFUL RESTRICTIONS TO COMPETITION, "TACKLE" NOT ONLY THE PARA-PHARMACY MARKET - OF WHICH THE EXCLUSIVE RIGHTS CONSTITUTED, ACCOR- DING TO THEM, A COMPETITIVE PRACTISE INTOLERABLE AND ILLICIT - BUT ALSO AND PARTICULARY THE MARKET OF MEDECINE BY COMMERCIALIZING PRODUCTS without ANY NOTICE ON THEIR PACKING, AS THOUGH NOT ALLEGING THERAPEUTIC PROPERTIES TO THE PRODUCT WAS SUFFICIENT TO RENDER IT A NON-MEDICINAL PRODUCT, THEREFORE A HARMLESS PRODUCT FOR CURRENT CONSUMPTION. THESE NEW FORMS OF DISTRIBUTION HAVE RESTARTED THE DEBATE ON WHAT BE- LONGS TO THE PHARMACY BY RIGHT AND WHAT SHOULD BE SOLD FREELY without ANY HARM FOR THE PUBLIC HEALTH. AT THE INTERSECTING POINT OF THESE QUERIES, IS TO BE
34
Hurley, Robert C. "Computation of monopole antenna currents using cylindrical harmonic expansions". Thesis, Monterey, California. Naval Postgraduate School, 1988. http://hdl.handle.net/10945/22966.
Pełny tekst źródłaStreszczenie:
Approved for public release; distribution is unlimitedThis thesis investigates the viability of a new method for numerically computing the input impedance and the currents on simple antenna structures. This technique considers the antenna between two ground planes and uses multiregion cylindrical harmonic expansions with tangential field continuity to obtain the surface currents and input impedance. The computed results are compared to the results obtained from the Numerical Electromagnetics Code for various physical parameters to assess computational accuracy.
http://archive.org/details/computationofmon00hurl
Lieutenant, United States Navy
35
Falter, Manuela. "Russlands natürliche Monopole Deregulierung am Beispiel der russischen Stromwirtschaft". Berlin BWV, Berliner Wiss.-Verl, 2007. http://d-nb.info/991503376/04.
Pełny tekst źródła
36
Mouhssine, Najat. "L'Exercice illégal de la pharmacie et le monopole pharmaceutique". Lille 3 : ANRT, 1989. http://catalogue.bnf.fr/ark:/12148/cb37616747m.
Pełny tekst źródła
37
Wong, Shui Nam. "On the geometry of the space of monopole-clusters". Thesis, University of Leeds, 2015. http://etheses.whiterose.ac.uk/10183/.
Pełny tekst źródłaStreszczenie:
We review the results pertaining to the space of monopole-clusters, Mk,l, which was first proposed by Roger Bielawski. In particular, it has a pseudo-hyperk¨ahler metric which approximates the metric of the moduli space of SU(2)-monopoles on R 3 with exponential accuracy. We define actions of the groups R 3 , T 2 and SO(3) on Mk,l, and show that they are all isometry groups. In the case (k, l) = (1, 2), we express the monopole-clusters in terms of elliptic functions, and verify that they approach the true monopoles with rate inversely proportional to the separation distance between the clusters. For some SO^(2) ⊂ SO(3), the subgroups of SO^(2) × T 2 that admit a fixed point in the asymptotic region of M1,2 will be classified; their fixed point sets will be parametrized in terms of real coordinates and hence are manifolds. Finally, we compute the induced metric on an axially symmetric manifold in such family of manifolds, and show that it is asymptotically flat.
38
蔡文益. "Broadband Fractal Circular-Monopole Antenna". Thesis, 2011. http://ndltd.ncl.edu.tw/handle/ejrb2e.
Pełny tekst źródłaStreszczenie:
碩士景文科技大學
電腦與通訊研究所
99
In this paper, a novel broadband Fractal circular-monopole antenna is presented. This antenna consists of printed circular iteration with two iterating level and ground-plane with radius 25mm, making it easy to making it easy to combine directional, high gain and wide bandwidth. A prototype is designed to operate at 1.5GHz-5.86GHz, the measured 10 dB bandwidth is nearly 1:2 at the center frequency of 3.775GHz. Experimental results are shown to verify the validity of theoretical work. Fractal monopole antenna is formed with hollow of circle, which featuring of minification, multi-frequency bands and wide bands. The planar fractal monopole antenna is based on the Sierpinski carpet concept and to modified, the Sierpinski fractal has generated two iterations, use the decomposition algorithm by circular, and compare these with integrators and initiator type. Firstly, base on generally circular disc to generate hollow of circular, this initiator has a circumference of and 1mm trace width. In the decomposition algorithm, a geometric ratio of circle is taken and joining the midpoints of union of the circles central, reduce the circle to 1/3 diameter and canonical Sierpinski carpet algorithm to fill the circle with twice mathematics equals 1/9 diameter by 2nd iteration.The geometrical structure and dimensions of the proposed monopole type antenna is printed on FR4 substrate and is simulated by using FEM based electromagnetic simulator, Ansoft HFSS. All of them describe a multiband behavior of fractal antenna. This behavior is consistent from the input return loss and gain; moreover radiation patterns planes of view. The same scale factor existing among similar structures in the fractal circular-shape. It can be summarized that the self-similarity properties of the fractal structure are translated into its electromagnetic behavior. The current density distributions have a similar and vary in complicated among bands as well. Such distributions allows flexibility in matching multi- and width band operations in which a larger frequency required, such as FemtoCell and UMTS base station application including LTE, UMTS, GPS L1, WIFI, and WiMax. The circular monopole type is based on fractal structure and refers to the Sierpinski gasket self-similarity algorithm, a prototype of the design is successfully implemented with close agreement between measurement and simulation. The fractal geometry and overall size can be effectively utilized ID or Logo surface for integrating with other components in IT products.
39
Huang, Hao-Shiang, i 黃晧翔. "Circularly Polarized Monopole Antenna Designs". Thesis, 2014. http://ndltd.ncl.edu.tw/handle/07486773061579913898.
Pełny tekst źródłaStreszczenie:
碩士國立高雄海洋科技大學
電訊工程研究所
102
In this dissertation, circularly polarized (CP) monopole antenna designs for industrial, scientific and medical (ISM) band are proposed. First, by properly introducing dual strip-sleeves shorting at the ground plane, the antenna design provides the impedance bandwidths (RL≧10 dB) of 270 / 988 MHz and the 3 dB axial-ratio (AR) bandwidth of about 85/710 MHz for 2.4/5.2 GHz wireless local area network (WLAN) applications, respectively. The proposed planar antenna reduces the antenna size by at least 22% since the overall antenna size is only 40 × 40 × 1.6 mm3. Meanwhile, the measured peak gains and antenna efficiencies are about 4.2/3.2 dBic and 95/90% across the operating bands, respectively. Next, two spiral monopole antennas with radial and axial circular polarization, respectively, are proposed with the impedance bandwidth of 135/218 MHz and the 3 dB axial-ratio (AR) bandwidth of about 108/125 MHz across 2.45 GHz operating band. Furthermore, the measured peak gains and antenna efficiencies are about 9/10 dBic and 85/80%, respectively. Finally, the analysis of the body specific absorption rate (SAR) for two proposed spiral monopole antennas are discussed and less than 1.6W/kg for 1-g body tissue.
40
CHEN, GUAN-LIN, i 陳冠霖. "Circularly Polarized Monopole Antenna Designs". Thesis, 2017. http://ndltd.ncl.edu.tw/handle/80716486991789568103.
Pełny tekst źródłaStreszczenie:
碩士逢甲大學
電機工程學系
105
This paper studied the circularly polarized RFID reader antenna. The first antenna is a compact circularly polarized monopole antenna. It is fed by a microstrip line. By adjusting the parameters of the left branch and right branch, a circularly polarization with good impedance matching can be obtained. The overall dimension of the first proposed antenna is 60×60×0.8 mm3. The measured 10-dB return loss bandwidth of the antenna is 93.4 MHz (901 – 993.4 MHz, 9.3%), 3-dB axial ratio bandwidth is 12 MHz (916 – 928 MHz, 1.3%), the maximum gain and radiation efficiency are -1.1 dBic and 70%, and antenna has bidirectional radiation characteristics. The half-power beamwidths antenna in XZ plane and YZ plane are 170 degrees and 115 degrees respectively. The first proposed antenna is a low profile, compact size, low cost antenna, which is suitable for portable UHF RFID reader application. The second proposed antenna uses AMC reflector to enhance the gain of the antenna. The AMC reflector periodic structure is placed 9 mm away from the bottom of the antenna for the optimal configuration. The measured 10-dB return loss bandwidth is 650 MHz (2.08 – 2.73 GHz, 27%), 3-dB axial ratio bandwidth is about 120 MHz (2.6 – 2.72 GHz, 4.5 %); the best axis ratio is 1.29 (2.65 GHz), and the measured gain is 6.5 dBic. The front-to-ratios in XZ plane and YZ plane are both about 22 dB. The overall dimension of the second antenna is 80×80×12.2 mm3.
41
Lane, Charles E. "GUT Monopole Detection with Scintillator". Thesis, 1988. https://thesis.library.caltech.edu/7495/9/lane-ce-1988.pdf.
Pełny tekst źródłaStreszczenie:
Searches for the monopoles predicted by Grand Unified Theories (GUTs) have required new approaches, since these monopoles should be both slow and highly penetrating. The ability of scintillator to respond to particles of velocity < 10⁻³ c has been demonstrated, indicating that scintillator detectors should be useful in GUT monopole searches.
A small monopole detector prototype at the Earth's surface was operated in an effort to understand the problems and possibilities of monopole detection. The design philosophy, techniques, and the lessons learned from the prototype detector could then be applied to much larger monopole detectors. The prototype was not able to set new limits for the GUT monopole flux in cosmic rays, but in a more general analysis it was found that new limits could be set on the flux of lightly ionizing particles of mass ~ 10¹⁰ GeV.
When GUT monopole detectors are scaled up to the size needed to challenge astrophysical limits, it becomes more likely that a flux could be found. This motivates a more careful examination of the scintillator counters, since their signal should be clear and unambiguous for a monopole candidate. The performance of the liquid scintillator counters for the MACRO (Monopole And Cosmic Ray Observatory) experiment was given considerable scrutiny, both to try to understand the observed behavior of these counters, and also to improve them for monopole detection.
The results of these tests indicate that MACRO should be able either to establish a monopole flux or to limit it to a small fraction of the 'missing mass' of the universe.
42
Lin, Yen-Chih, i 林彥鋕. "CPW-Fed Circularly Polarized Monopole Antenna". Thesis, 2007. http://ndltd.ncl.edu.tw/handle/36587086447920777634.
Pełny tekst źródłaStreszczenie:
碩士逢甲大學
產業研發碩士班
95
In this thesis, a CPW-fed circularly polarized monopole antenna has been implemented and investigated. The simulated and measured results of the antennas are detailed and analyzed. First, a new antenna possessing linear polarization and circular polarization for applications of the global positioning system (GPS) and digital communication system (DCS) has been designed. The proposed antenna consists of two parts: a quasi-C-shaped monopole antenna and an inverted L-shaped strip connecting to ground plane. By introducing a gap between the monopole antenna and inverted L-shaped strip, a traveling-wave current is excited on a loop trace. Meanwhile, by utilizing the electromagnetic coupling effect inside the gap, the vertical and horizontal electric fields with the phase difference of 90 degree and the equal magnitude result in the circularly polarized radiation in the free space at the 1.5 GHz band (GPS). The resonant band at 1.8 GHz (DCS band) is determined by the effective length of the quasi-C-shaped monopole antenna. Finally, the optimal dimensional values of the antenna are derived by tuning the critical parameters in order to obtain the maximum bandwidth and desired circular polarization。 The advantages of the new proposed antenna are miniaturization, dual-system operation, circular polarization and easy fabrication. The proposed antenna can be a candidate of the RX/TX radiator for the integration of GPS and DCS systems.
43
WANG, JIAN-CHENG, i 王健丞. "CPW Monopole Antenna Application Circular Polorization". Thesis, 2016. http://ndltd.ncl.edu.tw/handle/26wa3a.
Pełny tekst źródłaStreszczenie:
碩士大葉大學
電機工程學系
104
This paper presents to the CPW fed monopole antenna can be use in global positioning system(GPS)and 4G(LTE).This antenna thourgh suitable cutting one side of a metal ground plane, so that the original monopole resonance disappears, forming a dipole resonance, and output and has two orthogonal linearly polarization 90° to achieve circular polarization. On the other side of the metal ground plane, with inverted L-shaped metal patch antenna bandwidth is increased so that the coating on the 4G(LTE)band.In addition, the antenna design can be simple,low -cost production, and easy to combine with the microwave components.
44
Chang, Teng-Yuan, i 張燈元. "Dual Broadband Bow-Tie Monopole Antenna". Thesis, 2014. http://ndltd.ncl.edu.tw/handle/26574087388647171013.
Pełny tekst źródłaStreszczenie:
碩士國立澎湖科技大學
電資研究所
102
This paper presents the designs of three dual broadband bow-tie monopole antennas. The frequencies are designed to meet the applications of the four bands GSM/WLAN/WiMAX/LTE. That is, the low-frequency and high-frequency bands cover 1.71~2.69 GHz (44.55%) and 5.18~5.825 GHz (11.72 %) individually, with input reflection coefficient -10dB level. The first antenna is formed by a bow-tie monopole antenna and a rectangular ring antenna, which is named ringed dual broadband bow-tie antenna. The second antenna is named half-wavelength slot dual broadband bow-tie antenna, which is a broadband bow-tie antenna embedded a half-wavelength slot to generate dual broadband. The third antenna is named quarter wavelength slot dual broadband bow-tie antenna, which is embedded with two open-end quarter-wavelength slots. Using the above mentioned three different methods to design dual broadband monopole antenna, simulated frequency bands are all up to 30% bandwidth. Ring dual broadband bow-tie antenna is implemented and measured. The low-frequency band is 2.19~3.06 GHz (33.14%) and the high-frequency band is 5.3~6.45 GHz (19.57%). The measured results of this half-wavelength slot dual broadband bow-tie antenna are the low-frequency band 1.95~2.65 GHz (30.43%) and the high-frequency band 4.79~6.8 GHz (34.69%). The last 1/4 wavelength slot dual broadband bow-tie antenna with the largest bandwidth can cover GSM/WLAN/WiMAX/LTE band, which the experimental measurements are included the low-frequency band 1.66~2.73 GHz (48.75%) and the high frequency band 4.89~7.00 GHz (35.49%). In addition, as measured results, the S11 and radiation pattern of the designed antenna are roughly consistent with the numerical simulation to verify the feasibility of the antenna design methods mentioned in this paper.
45
LEE, Kuo-ching, i 李國清. "Planar Triple-band Monopole Antenna Design". Thesis, 2008. http://ndltd.ncl.edu.tw/handle/83782110877053611411.
Pełny tekst źródłaStreszczenie:
碩士國立臺灣科技大學
電子工程系
96
The aim of this thesis is to design the triple-bands mono-pole antenna, which was made by common material named FR4 board purchased from the market. Literature survey studied from dual-bands and triple-bands’ papers and these as the fundamental structure; the implementation performed by electromagnetic analysis program named IE3D to do fine tuning antenna and come out simulation results. The optimized parameters had been resolved for making actual antenna product. The proposed planar mono-pole antenna has excellent function upon WiMAX and WLAN frequency bands (2500-2690/3400-3690/ 5250-5850 MHz for WiMAX) and (2.4-2.484 GHz and 5.15-5.35 GHz、5.725-5.825 GHz for WLAN); This antenna also could support frequency bands for PCS(1.85 ~ 1.99 GHz) and UMTS (1.92 ~ 2.17 GHz) with acceptable performances. It should be a good product applying to industrial enterprise.
46
Chien, Wu-cheng, i 簡武正. "BROADBAND MONOPOLE ANTENNA FOR DVB-T". Thesis, 2011. http://ndltd.ncl.edu.tw/handle/54365269513755483306.
Pełny tekst źródłaStreszczenie:
碩士大同大學
通訊工程研究所
99
In the thesis, a wideband monopole antenna for the European DVB-T (Digital Video Broadcast-Terrestrial) system specification is proposed. This paper uses the theory of traditional monopole antenna and impedance matching with the appropriate adjustment method to meet the DVB-T frequency band specification(470 MHz to 862 MHz), the monopole antenna in order to meet the DVB-T specification, firstly, adjusted the length and width of antenna to meet the low-frequency part of the DVB-T, followed by a patch with inset feeding configuration is used and adjust the feed line to the appropriate width ratio, and effective enough to increase the impedance bandwidth to cover the DVB-T requirements specification band. After actual results of the measurement of the impedance bandwidth and radiation characteristics are consistent with the simulation, the proposed antenna can be applied to DVB-T.
47
Kao, Ping-Chi, i 高鈵騏. "Designs of CPW-fed Monopole Antennas". Thesis, 2006. http://ndltd.ncl.edu.tw/handle/ufdst6.
Pełny tekst źródłaStreszczenie:
碩士國立虎尾科技大學
光電與材料科技研究所
94
In recent years, the fast development of the wireless communication network has already provided much convenience to human being’s livings. The size and radiation characteristic of an antenna embedded in a wireless communication network will thus apparently affect the transceiving efficiency of the communication devices. Therefore, design of an antenna with suitable operating band, sufficient bandwidth, compact size, simple structure, and easy implementation for improving the mobility of a wireless communication device becomes the purpose of this study. The subject of this thesis is design of planar printed antennas for application to wireless communication systems. Two feed techniques of coplanar waveguide（CPW）feed and probe feed are utilized in this research to design three CPW-fed antennas with different impedance characteristics and one probe-fed antenna with circular-polarization characteristic. These proposed antenna designs include（1）a CPW-fed inverted triangular patch antenna for ultra-wideband operation（2）a CPW-fed inverted triangular patch antenna with a frequency band notch function for ultra-wideband operation（3）a compact CPW-fed dual folded-strip monopole antenna for 5.8 GHz RFID application, and（4）a square slotted patch antenna for circular polarization. The theoretical simulation, implementation of antenna prototypes, and measurement of antenna characteristics including impedance bandwidth, radiation patterns, and antenna gain, are all detailedly described and discussed in this thesis.
48
Luo, Shih-Cing, i 羅仕清. "Study of Broadband Monopole Slot Antenna Feed". Thesis, 2015. http://ndltd.ncl.edu.tw/handle/03680026198637219053.
Pełny tekst źródłaStreszczenie:
碩士明新科技大學
電機工程系碩士班
104
In this thesis, we study separately the asymmetric coplanar waveguide fed and the U-shaped coplanar waveguide fed monopole slot antennas. The Implement of antenna is carried out with printing circuit boards, which are easy to be integrated, low cost and enhancing convenience production characteristics. In this study, two different locations of feed are applied for the monopole slot antenna. The resonant modes of the antenna are excited by different current paths. In asymmetric coplanar waveguide feed case, by changing the location and shape of the feed, the asymmetric coplanar waveguide fed monopole slot antenna has operating frequency from 2.55GHz to 6.2GHz with operating bandwidth 85%. The U-shaped coplanar waveguide fed monopole slot antenna has operating frequency between 2.3GHz and 5.4GHz with bandwidth is 82%. The operating bands of these antennas are including Bluetooth ,WLAN and WI-MAX, which can be applied for wireless network. The bandwidth is more than 25% (500MHz above) and fits in the definition of ultra wide band.
49
LU, BO-RU, i 盧柏儒. "Broadband C-Shaped Circularly Polarized Monopole Antenna". Thesis, 2016. http://ndltd.ncl.edu.tw/handle/87950526255852096732.
Pełny tekst źródłaStreszczenie:
碩士大葉大學
電機工程學系
104
This thesis discusses is designed and improve the Broadband C-Shaped monopole. The antenna is reference by C-Shaped, and add a rectangle and open-loop in ground plan to achieve width bandwidth and axial ratio. Advantages of the antenna are simple structure, compact size , width bandwidth and axial ratio. Objective to cover the WLAN 5 GHz (4.915 - 5.825 GHz) bandwidth.
50
CHIU, PEI-YUAN, i 邱培源. "Printed monopole antenna designs for WLAN applications". Thesis, 2006. http://ndltd.ncl.edu.tw/handle/81988507648488590921.
Pełny tekst źródłaStreszczenie:
碩士國立高雄師範大學
物理學系
94
In this thesis, printed monopole antenna designs for the purpose of wider impedance bandwidths which can cover the 2.4/5.2/5.8 GHz triple-band WLAN operations are presented. Firstly, two innovative printed monopole antenna designs of different shape are proposed in Chapter 2 and 3, both designs have two different resonant paths for controlling the lower and upper resonances easily. Secondly, the printed monopole antenna design with one resonant path, and folded by a shorting pin is studied in Chapter 4. Simply by adding the parasitic element, as well as the generating of electromagnetic coupling between the resonant paths, all designs above-mentioned can easily achieve the WLAN 2.4/5.2/5.8 GHz triple-band operations.