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Dissertations / Theses on the topic 'P-Band'

Author: Grafiati
Published: 4 June 2021
Last updated: 27 July 2025

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1

Foussekis, Michael. "INVESTIGATION OF BAND BENDING IN n- AND p-TYPE GaN." VCU Scholars Compass, 2012. http://scholarscompass.vcu.edu/etd/2758.

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This dissertation details the study of band bending in n- and p-type GaN samples with a Kelvin probe utilizing different illumination geometries, ambients (air, oxygen, vacuum 10-6 mbar), and sample temperatures (77 – 650 K). The Kelvin probe, which is mounted inside an optical cryostat, is used to measure the surface potential. Illumination of the GaN surface with band-to-band light generates electron-hole pairs, which quickly separate in the depletion region due to a strong electric field caused by the near-surface band bending. The charge that is swept to the surface reduces the band bendin
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2

Lim, Sang-Hyun. "Characterization of p-type wide band gap transparent oxide for heterojunction devices." Amherst, Mass. : University of Massachusetts Amherst, 2009. http://scholarworks.umass.edu/dissertations/AAI3359903/.

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3

Peng, HongLi, Zheng Huang, and WenBin Han. "FE-BI METHOD FOR ANALYZING P-BAND CYLINDRICAL CONFORMAL MICROSTRIP ANTENNA AND ARRAY." International Foundation for Telemetering, 1997. http://hdl.handle.net/10150/607547.

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International Telemetering Conference Proceedings / October 27-30, 1997 / Riviera Hotel and Convention Center, Las Vegas, Nevada<br>An edge-based hybrid finite element boundary integral (FE-BI) method using cylindrical shell elements is described for analyzing conformal quarter-wave patches embedded in a circular cylinder. Special care is also taken to deal with weight functions, dyadic Green’s function, and feed model. Some types of the patch arrays embedded in different circular radius have been developed. The tests of their VSWRs and radiation characteristics are in good agreement with
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4

Betancourt, Payán Andrés Felipe. "Towards the Performance Assessment of aMapdrift Autofocus for a P-Band SARMission Implementation." Thesis, Luleå tekniska universitet, Rymdteknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-76767.

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In the context of the ESA BIOMASS mission in which for the first time, a P-Band SAR sensor isgoing to be mounted into a spaceborne system. With its penetration capability, it will contributeto the measurement of the biomass and carbon content in the Earth’s forests. An autofocusalgorithm is needed for the correction of phase errors introduced by the changing diffraction indexin the ionosphere. Because of the quickly changing nature of the ionosphere, defocusing has to bemeasured and corrected locally over several sections of a SAR capture.In this thesis, a deep introduction into phase errors i
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5

Akaike, Kouki, kaname Kanai, Yukio Ouchi, and Kazuhiko Seki. "Influence of ionization energy change on valence band offset in organic p-n junction." American Institute of Physics, 2009. http://hdl.handle.net/2237/14155.

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6

Shiroma, Gustavo Hiroshi Xavier. "P-band polarimetric and non-polarimetric SAR interferometry terrain modeling with short and long baselines." Instituto Tecnológico de Aeronáutica, 2014. http://www.bd.bibl.ita.br/tde_busca/arquivo.php?codArquivo=2960.

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Certain applications require topographic surveys below the vegetation cover. The use of radars with long wavelengths, such as L- and P-band, allows signal penetration through the forest volumetric structure. However, the interferometric phase center, resulting from this interaction, may be closer to or farther from the ground depending on the baseline and polarizations used. Recently, improvements in polarimetric synthetic aperture radar interferometry with the random volume over ground model have allowed the generation of terrain models with considerably increased accuracy. This work aims fi
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7

Liu, Quan. "Multi-band OFDM and p-Persistent CSMA/CD-based Indoor Power Line Communication (PLC) Systems." University of Cincinnati / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1265984789.

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8

Algafsh, Abdullah. "Calibration of airborne L-, X-, and P-band fully polarimetric SAR systems using various corner reflectors." Doctoral thesis, University of Cape Town, 2017. http://hdl.handle.net/11427/26937.

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Synthetic aperture radar polarimetry is one of the current developments in the field of remote sensing, due to the ability of delivering more information on the physical properties of the surface. It is known as the science of acquiring, processing and analysing the polarisation state in an electromagnetic field. The increase of information with respect to scalar radar comes at a price, not only for the high cost of building the radar system and processing the data or increasing the complexity of the design, but also for the amount of effort needed to calibrate the data. Synthetic aperture rad
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9

Wu, Kehuey. "Strain effects on the valence band of silicon piezoresistance in p-type silicon and mobility enhancement in strained silicon pMOSFET /." [Gainesville, Fla.] : University of Florida, 2005. http://purl.fcla.edu/fcla/etd/UFE0008390.

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10

Gelas, Colette. "Inversion de données PolSAR en bande P pour l'estimation de la biomasse forestière." Thesis, Toulouse 3, 2020. http://www.theses.fr/2020TOU30282.

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La thèse s'inscrit dans le cadre des travaux préparatoires à la mission spatiale BIOMASS du programme Earth Explorer de l'ESA (Agence Spatiale Européenne), qui prévoit d'exploiter pour la première fois depuis l'espace un SAR en bande P (435 MHz), dans le but de cartographier la biomasse et la hauteur des forêts à l'échelle globale pour la période 2023-2028. L'utilisation de la bande P permet d'obtenir une sensibilité du signal inédite avec la biomasse, en lien avec ses capacités de pénétration même à travers des forêts tropicales denses. La mission BIOMASS se base sur l'utilisation conjointe d
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11

Shao, Jun. "Effective mass and valence-band structure in Ga Kappa In 1-Kappa As/InP and Ga Kappa In 1-Kappa P/AlGaInP quantum wells." [S.l. : s.n.], 2002. http://www.bsz-bw.de/cgi-bin/xvms.cgi?SWB9818580.

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12

Pons, Nicolas. "Modélisation tridimensionnelle multibandes du transport quantique dans les transistors à nanofil." Thesis, Aix-Marseille 1, 2011. http://www.theses.fr/2011AIX10039/document.

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L’amélioration des performances du transistor MOS passe par la réduction de ses dimensions. Dans quelques années, la longueur de grille des dispositifs va descendre en dessous de 10 nm. A cette échelle, les effets quantiques deviennent prépondérants et dégradent considérablement les performances électriques des transistors à simple grille. Le transistor à nanofil avec grille enrobante est une architecture alternative intéressante pour augmenter le contrôle électrostatique du canal de conduction. Malgré les améliorations apportées par cette architecture, le courant à l’état bloqué reste perturb
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13

Di, Palma Luca. "Antennes réseaux transmetteur reconfigurables aux fréquences millimétriques." Thesis, Rennes 1, 2015. http://www.theses.fr/2015REN1S092/document.

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De nombreuses applications civiles et militaires (faisceaux hertziens, futurs réseaux mobiles, communications par satellite, radars automobiles, systèmes d’imagerie haute résolution) nécessitent des antennes à faisceau reconfigurable (dépointage de faisceau, faisceaux multiples, faisceaux formés). Les antennes à réseaux transmetteurs apparaissent comme une alternative aux réseaux phasés classiques ou aux réseaux réflecteurs pour ces applications. L’objectif principal de cette thèse est de démontrer la faisabilité de réseaux reconfigurables fabriqués avec des technologies standards en bande Ka
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14

Foschini, Mauricio. "Síntese e determinação da afinidade eletrônica, potencial de ionização e energia de banda proibida de polímeros eletroluminescentes." Universidade de São Paulo, 2004. http://www.teses.usp.br/teses/disponiveis/76/76132/tde-09042008-111739/.

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Nesta dissertação realizamos a síntese eletroquímica e a caracterização eletroquímica e óptica de polímeros conjugados eletroluminescentes no azul, como o poli(p-fenileno) (PPP) e alguns copolímeros. Filmes de PPP, poli(pirrol) (PPI), poli(3-metiltiofeno) (P3MET) e os copolímeros, copoli(p-fenileno-pirrol) (CPPI) e copoli(p-fenileno-3-metiltiofeno) (CP3MET), foram preparados por voltametria cíciica (VC) e cronoamperometria (CR) em eletrodos de óxido de estanho dopado com índio sobre vidro (ITO) em uma solução não-aquosa de acetonitrila e perclorato de tetrabutilamônio contendo os monômeros a d
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15

Dib, Elias. "Interaction électron-phonon dans le cadre du formalisme des fonctions de Green hors-équilibre : application à la modélisation de transistors MOS de type p." Thesis, Aix-Marseille, 2013. http://www.theses.fr/2013AIXM4357.

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Depuis que les dimensions des nano-dispositifs ont atteint l’échelle nanométrique, la simulation quantique est devenue incontournable dans le domaine de la nanoélectronique. Parmi les différents phénomènes physiques, l’interaction électron-phonon représente un processus majeur limitant la mobilité des porteurs de charge à température ambiante. En combinant la théorie multibandes k.p avec le formalisme quantique des fonctions de Green hors-équilibre, nous avons étudié et comparé deux types de dispositifs double-grille dopés p: le transistor MOS «conventionnel» et celui dit «sans jonction». L’in
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16

Brito, Davi Bibiano. "Metamaterial inspired improved antennas and circuits." Universidade Federal do Rio Grande do Norte, 2010. http://repositorio.ufrn.br:8080/jspui/handle/123456789/15152.

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Made available in DSpace on 2014-12-17T14:54:58Z (GMT). No. of bitstreams: 1 DaviBB_DISSERT_1-70.pdf: 4567680 bytes, checksum: 150ff5afc1806ca374278b4c00a1f5a3 (MD5) Previous issue date: 2010-12-06<br>Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior<br>Metamaterials exhibiting negative refraction have attracted a great amount of attention in recent years mostly due to their exquisite electromagnetic properties. These materials are artificial structures that exhibit characteristics not found in nature. It is possible to obtain a metamaterial by combining artificial structures
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17

Poilasne, Gregory. "Antennes et materiaux a bande interdite photonique (b. I. P. )." Rennes 1, 1999. http://www.theses.fr/1999REN10070.

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Les materiaux a bande interdite photonique (bip) sont des arrangements periodiques composes de dielectrique ou de metal. Ils presentent la particularite d'interdire la propagation des ondes electromagnetiques pour certaines bandes de frequences. Les resultats presentes dans ce memoire concernent la recherche d'applications de ces structures liees aux antennes. Pour cela, une premiere etape a consiste a comprendre les interactions qui existent entre une antenne et un bip metallique (bipm), particulierement interessant aux frequences micro ondes, non sans avoir etudie l'influence des differents
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18

Phumisithikul, Karen L. "Surface photovoltage transients for p-type AlGaN." VCU Scholars Compass, 2015. http://scholarscompass.vcu.edu/etd/3787.

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There is an understanding of surface photovoltage (SPV) behavior for GaN, yet little is known about the SPV behavior for AlGaN. In this work, a Kelvin probe was used to measure the SPV for p-type AlGaN. Very slow SPV transients were found in AlGaN, which could not be explained with a simple thermionic model. A possible explanation of this behavior is the segregation of impurities to the surface, which causes significant reduction of the depletion region width (down to 2 nm), with carrier tunneling and hopping becoming the dominant mechanisms responsible for the SPV transients. To verify th
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19

McNamara, Joy. "The Effect of Temperature on the Electrical and Optical Properties of p-type GaN." VCU Scholars Compass, 2013. http://scholarscompass.vcu.edu/etd/3049.

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The development of gallium nitride (GaN) light emitting devices has reached extraordinary echelons. As such, the characterization and analysis of the behavior of GaN materials is essential to the advancement of GaN technology. In this thesis, the effect of temperature on the optical and electrical properties of p-type GaN is investigated. The GaN samples used in this work were grown by various methods and studied by Kelvin probe and photoluminescence (PL) techniques. Specifically, the surface photovoltage (SPV) behavior and PL data were analyzed at different temperatures and illumination inten
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20

Boyer, Richard Soline. "Modélisation physique de la structure électronique, du transport et de l'ionisation par choc dans les matériaux IV-IV massifs, contraints et dans les puits quantiques." Paris 11, 2004. https://tel.archives-ouvertes.fr/tel-00008310.

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Ce travail est consacré à l'étude des phénomènes physiques dans les composants à base d'alliage SiGe en présence de fort champ électrique donc mettant en jeu des porteurs très énergétiques susceptibles d'induire de l'ionisation par choc. A l'aide d'une méthode k. P à 30 bandes, nous avons modélisé les structures électroniques complètes du Si, du Ge et des alliages Si1-xGex massifs et contraints sur une large gamme d'énergie (11 eV autour de la bande interdite) avec une très grande précision sur les masses effectives. Associée au formalisme de la fonction enveloppe, cette méthode nous a fourni
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21

Del, Monte Sara. "Diffusione della banda larga: fattori di sviluppo e regolazione." Doctoral thesis, Universita degli studi di Salerno, 2014. http://hdl.handle.net/10556/1865.

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2011-2012<br>La banda larga è un fattore fondamentale per lo sviluppo della società dell’informazione. Nei paesi sviluppati si assiste ad una rapida crescita della larga banda, ma mentre il numero di nuovi sottoscrittori alla banda larga fissa si è quasi arrestato, quello relativo alla banda larga mobile sta crescendo molto rapidamente. In questo lavoro, utilizzando un panel di dati relativi ai 27 Stati membri dell’Unione europea, ha analizzato i fattori che determinano la diffusione della banda larga fissa e quelli che determinano la diffusione della banda larga mobile. Per quanto riguarda l
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22

Barbosa, M?rcio Englert. "Transtorno de estresse p?s-traum?tico em banc?rios v?timas de ataques a bancos : rea??es p?s-traum?ticas e terapia de exposi??o virtual." Pontif?cia Universidade Cat?lica do Rio Grande do Sul, 2018. http://tede2.pucrs.br/tede2/handle/tede/7947.

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Submitted by PPG Psicologia (psicologia-pg@pucrs.br) on 2018-04-05T16:16:48Z No. of bitstreams: 1 TES_M?RCIO_ENGLERT_BARBOSA.pdf: 3154644 bytes, checksum: 0ca9a1aa1b6e5af8a55e9d93efddc374 (MD5)<br>Approved for entry into archive by Caroline Xavier (caroline.xavier@pucrs.br) on 2018-04-16T18:58:57Z (GMT) No. of bitstreams: 1 TES_M?RCIO_ENGLERT_BARBOSA.pdf: 3154644 bytes, checksum: 0ca9a1aa1b6e5af8a55e9d93efddc374 (MD5)<br>Made available in DSpace on 2018-04-16T19:06:40Z (GMT). No. of bitstreams: 1 TES_M?RCIO_ENGLERT_BARBOSA.pdf: 3154644 bytes, checksum: 0ca9a1aa1b6e5af8a55e9d93efddc374 (MD5
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23

Schaefer, Luiziana Souto. "Avalia??o de rea??es p?s-traum?ticas em banc?rios v?timas de ataques a bancos." Pontif?cia Universidade Cat?lica do Rio Grande do Sul, 2011. http://tede2.pucrs.br/tede2/handle/tede/744.

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Made available in DSpace on 2015-04-14T13:21:50Z (GMT). No. of bitstreams: 1 430610.pdf: 815702 bytes, checksum: d50e7656679ce099b05b2650daca8bf0 (MD5) Previous issue date: 2011-03-01<br>Esta disserta??o ? composta de tr?s estudos, sendo dois te?ricos e um emp?rico, apresentados na forma de artigos. O objetivo geral do trabalho foi investigar a manifesta??o de rea??es p?s-traum?ticas em banc?rios v?timas de ataques a bancos. O primeiro artigo te?rico apresentou uma discuss?o acerca do Transtorno de Estresse P?s- Traum?tico (TEPT) decorrente de acidente de trabalho, incluindo crit?rios diagn?
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24

Bezzeghoud, Mourad. "Inversion et analyse spectrale des ondes p : potentialite des donnees numeriques large bande : application a des seismes mediterraneens et chiliens." Paris 7, 1987. http://www.theses.fr/1987PA077249.

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Les donnees sismiques digitales sont utilisees pour une modelisation realiste des sources sismiques, en particulier avec les methodes d'inversion. Les principaux seismes etudies sont issus de reseaux sismologiques numeriques recents, ce qui permet de deconvoluer la reponse de l'appareil; a l'aide d'un filtre passe haut ou pourra elargir la bande de frequence a partir d'enregistrement courte periode. La dynamique du processus de rupture associe aux seismes est etudiee par la forme de l'onde sismique lb. Deux techniques sont utilisees (inversion iterative et deconvolution temporelle) afin d'extr
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25

Güray, Recep Taygun. "A study on ¹?C(d,p)¹?C reaction and the role of neutron capture by ¹?C in big bang nucleosynthesis /." The Ohio State University, 2000. http://rave.ohiolink.edu/etdc/view?acc_num=osu1488203552777589.

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26

Bezzeghoud, Mourad. "Inversion et analyse spectrale des ondes P, potentialité des données numériques large bande application à des séismes méditerranéens et chiliens /." Grenoble 2 : ANRT, 1987. http://catalogue.bnf.fr/ark:/12148/cb37602992t.

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27

Sparta', Roberta. "Indirect 2H(d,p)3H and 2H(d,n)3He fusion reactions measurement at energies relevant for Big Bang Nucleosynthesis." Doctoral thesis, Università di Catania, 2013. http://hdl.handle.net/10761/1429.

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The work presented in this thesis is focused on the experimental study of the two deuterium burning channels 2H(d,p)3H and 2H(d,n)3He in the Big Bang Nucleosynthesis (BBN) astrophysical scenario. In the beginning is presented this phase of the early universe and why the BBN model is still fine tuned with new results coming from observations and laboratory measurements. This model (if BBN is considered standard) can be adjusted such to have only a free parameter, the baryon to photon ratio of the universe eta at a certain time. Also the WMAP satellite results have been of great help to fix eta
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28

Fabiana, Sabatini. "Essays on Bank Lending." Doctoral thesis, Luiss Guido Carli, 2021. http://hdl.handle.net/11385/213735.

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Sovereign tensions and euro-area banks: a review. The impact of sovereign tensions on bank lending: identifying the channels at work. Collateral in bank lending during the financial crises: a borrower and a lender story.
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29

Muqbel, Mohammed Saleh. "Étude hydrochimique et isotopique de trois aquifères alluviaux (Oueds Tuban, Bana, Hadramoute) de la République démocratique populaire du Yémen (R. D. P. Y)." Paris 11, 1986. http://www.theses.fr/1986PA112072.

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Dans ce travail, on expose les résultats concernant trois aquifères alluviaux (Tuban, Bana et Hadramoute) en République Démocratique Populaire du Yémen, sous climat aride et semi-aride. Cette étude a pour objet l'investigation des eaux des nappes libres, à partir des données hydrochimiques et isotopiques. L'interprétation de ces données apporte des éléments de réponses relatifs sur -L'origine et l'évolution de la salinité des eaux souterraines dans les nappes considérées. La minéralisation est essentiellement due à la dissolution. -Les conditions de recharge des eaux souterraines et l'effet év
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30

Gresko, Mark J. "Analysis and interpretation of compressional (P-wave) and shear (SH-wave) reflection seismic and geologic data over the Bane Dome, Giles County, Virginia." Diss., Virginia Polytechnic Institute and State University, 1985. http://hdl.handle.net/10919/53879.

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Approximately 37 km of predominantly 24-fold P-wave Vibroseis data and 16 km of 24-fold SH-wave Vibroseis data were acquired in the southern portion of the folded Appalachians near the Bane Dome in Giles County, Virginia. Data processing techniques included the application of newly developed methods for crossdip removal as well as the determination of statics solutions in the case of time variant shifts within the data traces. Minimum-phase filter deconvolution was also applied for the removal of reverberating energy and multiples recorded on the SH—wave lines. V<sub>p</sub>/V<sub>s</sub> rati
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31

MARE, DAVIDE SALVATORE. "Macroeconomic factors and small bank failures: the case of the italian cooperative banks." Doctoral thesis, Università degli Studi di Roma "Tor Vergata", 2010. http://hdl.handle.net/2108/1315.

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This paper uses bank-level data and macroeconomic indicators to assess the following two questions: (1) Does the external environment influence the occurrence of failure of small banks? (2) In terms of goodness-of-fit, do macroeconomic indicators improve model performance? These issues are addressed for the Italian Cooperative Banks using an unbalanced panel model. The results show that local geographical variables do matter in the estimation of the probability of failure and that model performance improves after their introduction in the analysis.
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32

Bidou, David. "Contribution à l'étude d'antennes fort gain : Applications dans le domaine millimétrique." Limoges, 2003. http://aurore.unilim.fr/theses/nxfile/default/2dd6d0ed-de6b-45c5-9621-69d213177779/blobholder:0/2003LIMO0006.pdf.

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Ce mémoire est consacré à la conception de plusieurs types d'antennes fort gain dans le domaine millimétrique et plus précisément aux alentours des 40 GHz. Ces antennes peuvent comporter un aspect large bande lorsque les applications envisagées sont liées à des critères de haut débit. Elles doivent être peu encombrantes et faible coût si elles se trouvent destinées au grand public. La première application détaillée est un réseau d'antennes imprimées carrées alimentées en coin. Il permet d'obtenir un fort gain sur une bande étroite ainsi que deux diagrammes de rayonnement particuliers (en alime
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33

Nepomuceno, Alcina Maria. "Uso de rede neural artificial não supervisionada na classificação de dados de radar na Banda-P para mapeamento de cobertura da terra em floresta tropical." Instituto Nacional de Pesquisas Espaciais, 2003. http://urlib.net/sid.inpe.br/jeferson/2003/05.07.10.44.

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Apresenta-se uma avaliação sobre as propriedades discriminatórias de dados de radar na Banda-P para o mapeamento da cobertura da terra usando a rede neural artificial não supervisionada Fuzzy-ART (Teoria da Ressonância Adaptativa). A área de estudo situa-se próxima à Floresta Nacional do Tapajós, no Estado do Pará, Brasil. Os dados de radar foram obtidos durante a missão realizada pela empresa alemã AeroSensing RadarSystem GmbH, em setembro de 2000. Foi selecionada uma faixa de imageamento 2,4 km x 7,4 km para o estudo. Os parâmetros de entrada para a rede Fuzzy-ART foram otimizados por algori
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34

Hess, Christoph. "Propriétés de transport des bronzes oxygénés quasi-bidimensionnels à ondes de densité de charge, (PO2)4(WO3)2m(m=4 à 14)." Université Joseph Fourier (Grenoble), 1997. http://www.theses.fr/1997GRE10117.

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Nous avons etudie les proprietes de transport des bronzes quasi-bidimensionnels (po#2)#4(wo#3)#2#m (m=4 a 14). Ces composes subissent des transitions de peierls vers un etat a onde de densite de charge (odc) constituee d'une modulation de la densite electronique couplee a une distorsion periodique du reseau. Le parametre m est associe a l'epaisseur des feuillets conducteurs wo#6. Avec un nombre d'electrons de conduction constant par maille primitive, on peut etudier l'influence de la variation de la densite electronique et du caractere bidimensionnel sur les instabilites de peierls. Les mesure
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35

Banh, Dan Hung [Verfasser], Roland A. [Akademischer Betreuer] Fischer, Philip P. [Gutachter] Power, Stephan [Gutachter] Schulz, and Roland A. [Gutachter] Fischer. "Atom-Precise Organometallic Cluster Construction : Exploring the Molecular Zinc Tool Box / Dan Hung Banh ; Gutachter: Philip P. Power, Stephan Schulz, Roland A. Fischer ; Betreuer: Roland A. Fischer." München : Universitätsbibliothek der TU München, 2017. http://d-nb.info/1148650121/34.

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36

GUERRIERI, CINZIA. "Essays in applied macroeconomics." Doctoral thesis, Luiss Guido Carli, 2017. http://hdl.handle.net/11385/201125.

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In Chapter 1, written jointly with Maddalena Galardo, we propose a new indicator of central bank’s verbal guidance, which measures the communication about future based on the frequency of future verbs in monetary policy statements. We consider the press conferences of the European Central Bank as testing case. First, we analyze the main determinants of our index and estimate the unexpected component. Second, we investigate the effects of the identified innovation of verbal guidance on daily changes of forward money markets rates between September 2007 and December 2015. Our results show
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37

EL, BIESI MOHAMED ABDEL HAMIED HASSAN. "Foreign banking, financial development and economic growth: recent evidence from MENA Region." Doctoral thesis, Università degli Studi di Roma "Tor Vergata", 2010. http://hdl.handle.net/2108/1345.

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Obiettivo di questo lavoro è quello di analizzare i motivi della presenza delle banche estere nella regione MENA (Middle East North Africa) nella duplice prospettiva delle banche e dei policy makers. Da un lato, si considerano le determinanti della performance delle banche straniere operanti nella regione; dall’altro lato, ci si concentra sulle determinanti della crescita economica della regione. Nella prima parte si analizzano le determinanti della performance finanziaria di un campione di 71 banche straniere operanti nella regione MENA nel periodo 2002-2007. In particolare, si studia l’imp
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38

Berbineau, Marion. "Modélisation des dispositifs à jonction P-N : Application aux oscillateurs A.T.T. de forte puissance en bande Ku et à l'étude des régimes transitoires des limiteures à diode PIN." Lille 1, 1989. http://www.theses.fr/1989LIL10081.

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Nous avons développé deux modèles complémentaires. Le premier permet de simuler le fonctionnement de structures semiconductrices à jonction PN ne faisant pas intervenir d'effet quantique. Dans le deuxième modèle, le composant semiconducteur est associé à son circuit de charge défini simplement sous forme d'éléments localisés. Grâce au premier type de modèle, nous étudions les diodes à avalanche et temps de transit a l'arséniure en bande Ku. Nous mettons en évidence le fonctionnement multifréquence, la collection prématurée des porteurs. Cette première étude montre que la structure à zone de dé
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39

LUBELLO, FEDERICO. "ESSAYS ON DYNAMIC MACROECONOMICS." Doctoral thesis, Università Cattolica del Sacro Cuore, 2015. http://hdl.handle.net/10280/6394.

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Questo lavoro è diviso in tre capitoli. Il primo capitolo fornisce una rassegna della letteratura economica riguardo gli effetti della liberalizzazione finanziaria sulla volatilità macroeconomica e descrive il ruolo delle politiche macroprudenziali nel favorire stabilità economica. Il secondo capitolo presenta un modello dinamico e stocastico di equilibrio economico generale neo-keynesiano, con rigidità reali e nominali e LAMP, per studiare l'impatto della liberalizzazione finanziaria sulla volatilità macroeconomica. La liberalizzazione finanziaria è modellata lungo due direzioni: il margine e
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40

LUBELLO, FEDERICO. "ESSAYS ON DYNAMIC MACROECONOMICS." Doctoral thesis, Università Cattolica del Sacro Cuore, 2015. http://hdl.handle.net/10280/6394.

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Questo lavoro è diviso in tre capitoli. Il primo capitolo fornisce una rassegna della letteratura economica riguardo gli effetti della liberalizzazione finanziaria sulla volatilità macroeconomica e descrive il ruolo delle politiche macroprudenziali nel favorire stabilità economica. Il secondo capitolo presenta un modello dinamico e stocastico di equilibrio economico generale neo-keynesiano, con rigidità reali e nominali e LAMP, per studiare l'impatto della liberalizzazione finanziaria sulla volatilità macroeconomica. La liberalizzazione finanziaria è modellata lungo due direzioni: il margine e
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41

BOSCO, DAVIDE. "ESSAYS IN COORDINATION WITH ENDOGENOUS INFORMATION." Doctoral thesis, Università Cattolica del Sacro Cuore, 2020. http://hdl.handle.net/10280/85461.

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Questa tesi si compone di due capitoli indipendenti, ciascuno dei quali analizza il ruolo giocato dall’informazione pubblica endogenamente determinata in situazioni caratterizzate da decision-making decentralizzato e da complementarietà strategica. Il primo capitolo analizza un regime-change game, in cui un governo autoritario può influenzare il consenso popolare attraverso l’implementazione di uno strumento di policy. A policy implementata, i cittadini possono tentare di destituire il governo in carica attraverso una rivolta popolare, la cui probabilità di successo è proporzionale al numero d
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42

BOSCO, DAVIDE. "ESSAYS IN COORDINATION WITH ENDOGENOUS INFORMATION." Doctoral thesis, Università Cattolica del Sacro Cuore, 2020. http://hdl.handle.net/10280/85461.

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Questa tesi si compone di due capitoli indipendenti, ciascuno dei quali analizza il ruolo giocato dall’informazione pubblica endogenamente determinata in situazioni caratterizzate da decision-making decentralizzato e da complementarietà strategica. Il primo capitolo analizza un regime-change game, in cui un governo autoritario può influenzare il consenso popolare attraverso l’implementazione di uno strumento di policy. A policy implementata, i cittadini possono tentare di destituire il governo in carica attraverso una rivolta popolare, la cui probabilità di successo è proporzionale al numero d
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43

AVIGNONE, GIUSEPPE. "INTERNATIONAL LIQUIDITY, NEGATIVE INTEREST RATE POLICY AND BANKING SUPERVISION: EVIDENCE FROM A NATURAL EXPERIMENT." Doctoral thesis, Università degli studi di Genova, 2021. http://hdl.handle.net/11567/1048854.

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Chapter 2: Given the importance Swap lines played during the coronavirus-induced crisis, this paper analyses the impact of temporary U.S. dollar liquidity arrangements (swap lines) on international reserves (IR). Specifically, I investigate the effect that the Federal Reserve (FED) swap lines have had on the accumulation of IR of those countries involved compared to those countries that do not have any type of liquidity arrangements with the FED. By analysing a sample of 47 countries over the period 2002-2018 and a difference-in-differences methodology, I find that, overall, there is no differ
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44

Yalcinkaya, Ihsan Saban. "An Inter-annotator Agreement Measurement Methodology For The Turkish Discourse Bank (tdb)." Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/12612643/index.pdf.

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In the TDB[1]-like corpora annotation efforts, which are constructed by the intuitions of the annotators, the reliability of the corpus can only be determined via correct interannotator agreement measurement methodology (Artstein, &amp<br>Poesio, 2008). In this thesis, a methodology was defined to measure the inter-annotator agreement among the TDB annotators. The statistical tests and the agreement coefficients that are widely used in scientific communities, including Cochran&rsquo<br>s Q test (1950), Fleiss&rsquo<br>Kappa (1971), and Krippendorff&rsquo<br>s Alpha (1995), were examined in de
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45

DI, FABIO SILVIO. "Essays on ICT diffusion." Doctoral thesis, Università Politecnica delle Marche, 2018. http://hdl.handle.net/11566/253659.

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Questa tesi introduce una classe di modelli epidemici di diffusione specificamente adattati alla descrizione e all'analisi delle tecnologie ICT, mediante la definizione di un mercato potenziale dinamico che dipende dalla dimensione della rete del numero di individui che hanno già adottato. Rispetto ai tradizionali prodotti “stand alone”, le tecnologie ICT hanno caratteristiche peculiari e differenti comportamenti di adozione che possono essere spiegati dagli effetti e dalle esternalità di rete. Dopo una panoramica dello stato dell'arte della letteratura sulla diffusione delle innovazioni e sul
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46

ROSSETTI, FIAMMETTA. "Essays on empirical microeconomics." Doctoral thesis, Università degli Studi di Roma "Tor Vergata", 2010. http://hdl.handle.net/2108/1243.

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Il primo capitolo della presente tesi mette a confronto le performance di banche estere e domestiche operanti in un vasto numero di paesi –sviluppati e in via di sviluppo- durante il dispiegarsi di una crisi bancaria. A questo scopo utilizzo un dataset da me costruito fondendo i dati di bilancio e quelli relativi alla proprietà di un ricco panel di banche stanziate in diversi papesi tra il 1996 e il 2007 con informazioni riguardanti le date delle crisi bancarie accadute nei vari paesi durante il medesimo arco temporale. Le banche estere sembrano contrastare il ciclo negativo generato da una cr
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47

ARGENTIERO, AMEDEO. "Three essays in money, banking and public finance." Doctoral thesis, Università degli Studi di Roma "Tor Vergata", 2010. http://hdl.handle.net/2108/1411.

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Questa tesi tratta tre differenti argomenti appartenenti a tre Macro-Aree del mio programma di dottorato. Il lavoro è diviso in tre capitoli, ognuno redatto nella forma di articolo autonomo. Nel primo capitolo viene adottata una metodologia che, attraverso la derivazione delle condizioni comportamentali ottimali per imprese e consumatori, è in grado di generare una serie storica ad alta frequenza per il riciclaggio di denaro sporco grazie ad un modello di equilibrio economico generale dinamico a due settori. Nel secondo capitolo viene eseguita un'analisi empirica sul ruolo delle garanzie reali
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48

REBI, ERJONA. "The impact of the housing market on the Albanian banking sector." Doctoral thesis, Università degli Studi di Roma "Tor Vergata", 2016. http://hdl.handle.net/2108/202667.

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Gli studi sull'impatto dei prezzi delle case nel settore bancario hanno guadagnato più importanza dopo la crisi finanziaria del 2008. Era l'interferenza di imperfezione del mercato immobiliare con quella del mercato finanziario che ha causato l'ultima crisi. Il mercato immobiliare è un settore importante per le banche albanesi. Il finanziamento del mercato immobiliare domina i mutui individuali, e al tempo stesso le case rappresentano una quota elevata di garanzie prestate. Questo studio si propone di valutare il ruolo che il mercato immobiliare svolge per il settore bancario in Albania. Il la
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49

Sérier, Cédric. "Conception, réalisation et caractérisation d'antenne à bande interdite photonique : application au fort gain." Limoges, 2002. http://www.theses.fr/2002LIMO0017.

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Les matériaux à Bande Interdite Photonique (B. I. P. ) présentent des propriétés de réflexion et de filtrage fréquentiel très intéressantes. C'est ce qui explique l'engouement de la part de la communauté scientifique pour ces structures. Ces dernière années, de nombreuses applications ont été développées que ce soit en optique, micro-onde ou électromagnétique. Ce mémoire se consacre plus précisément à l'étude de cristaux photonique dans le but de réaliser des antennes à résonateur B. I. P. Tirant au mieux parti de leurs propriétés : Antenne à résonateur B. I. P. 1D 'large bande' : Antenne à ré
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50

Ambrosini, G. "ESSAYS ON THE INTERACTIONS BETWEEN CREDIT DEFAULT SWAP AND BOND MARKETS." Doctoral thesis, Università degli Studi di Milano, 2016. http://hdl.handle.net/2434/452841.

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This Ph.D. thesis consists of three research papers which are the result of my studies at the Lombardy Advanced School of Economic Research, University of Milan. Part of this work was accomplished during my visiting period at the Market Operations Analysis division at the European Central Bank. Abstract I: Since the issuance of the first credit default swap (CDS) contract in 1994, trading volume in CDS has been growing exponentially, transforming a niche market into a multi-trillion-dollar market. The subprime crisis in the US and the sovereign crisis in the EU contributed to raise concerns
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