Dissertations / Theses on the topic 'Doublet de Fermi'
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Zheng, Wan Quan. "Étude par spectroscopie C. A. R. S. Résolue dans le temps de la dynamique des états vibrationnels en phase dense." Paris 11, 1986. http://www.theses.fr/1986PA112144.
Full textBrunton, Rosalind Elizabeth. "Strong correlation effects in heavy fermion and double exchange systems." Thesis, Imperial College London, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.300345.
Full textSimon, Tobias [Verfasser], and Martin [Akademischer Betreuer] Schmidt. "On the isospectral problem of Fermi curves of two-dimensional doubly periodic Schrödinger operators / Tobias Simon ; Betreuer: Martin Schmidt." Mannheim : Universitätsbibliothek Mannheim, 2018. http://d-nb.info/1183572689/34.
Full textSimon, Tobias [Verfasser], and Martin U. [Akademischer Betreuer] Schmidt. "On the isospectral problem of Fermi curves of two-dimensional doubly periodic Schrödinger operators / Tobias Simon ; Betreuer: Martin Schmidt." Mannheim : Universitätsbibliothek Mannheim, 2018. http://d-nb.info/1183572689/34.
Full textLübcke, Eva [Verfasser], and Martin Ulrich [Akademischer Betreuer] Schmidt. "The direct and the inverse problem of finite type Fermi curves of two-dimensional double-periodic Schrödinger operators / Eva Lübcke ; Betreuer: Martin Ulrich Schmidt." Mannheim : Universitätsbibliothek Mannheim, 2017. http://d-nb.info/1151446688/34.
Full textLübcke, Eva [Verfasser], and Martin U. [Akademischer Betreuer] Schmidt. "The direct and the inverse problem of finite type Fermi curves of two-dimensional double-periodic Schrödinger operators / Eva Lübcke ; Betreuer: Martin Ulrich Schmidt." Mannheim : Universitätsbibliothek Mannheim, 2017. http://d-nb.info/1151446688/34.
Full textGhennam, Tarak. "Supervision d’une ferme éolienne pour son intégration dans la gestion d’un réseau électrique, Apports des convertisseurs multi niveaux au réglage des éoliennes à base de machine asynchrone à double alimentation." Thesis, Ecole centrale de Lille, 2011. http://www.theses.fr/2011ECLI0012/document.
Full textThis research work deals with two topics conditioning the large scale development of wind turbines into electrical grids. The first is devoted to the development of new algorithms for the control of Doubly Fed Induction Machine (DFIM) based wind energy conversion systems. Two direct current control strategies have been proposed and are based on the hysteresis square areas (HZCA) and hysteresis circular areas (HZCI). Both strategies apply an appropriate voltage vector to control the active and reactive powers delivered to the grid, and also, to balance the voltages of the inner DC bus converter. Simulation and experimental results show that the HZCI strategy is better than HZCA in terms of output voltage waveforms and harmonic contain.The second topic is dedicated to the active and reactive powers supervision in a wind farm in order to supply prescribed power references from the grid operator. This supervision is ensured by a centralized algorithm that distributes power references between wind turbines in a proportional way. These references are calculated according to the maximum production capacity of wind turbines. An analysis of the power flow in the DFIM based wind energy system has been made to identify the (P, Q) characteristic and to calculate limits in terms of reactive power compensation. The local power management of each wind system has been developed allowing the powers distribution between the stator of the DFIM and the grid side converter by considering several operating modes of the wind generator
Ring, Hubertus. "Régularité et chaos : étude de la molécule de disulfure de carbone (CS2) par spectroscopie de fluorescence et double résonance infrarouge-ultraviolet." Université Joseph Fourier (Grenoble), 1997. http://www.theses.fr/1997GRE10075.
Full textGhennam, Tarak. "Supervision d'une ferme éolienne pour son intégration dans la gestion d'un réseau électrique, Apports des convertisseurs multi niveaux au réglage des éoliennes à base de machine asynchrone à double alimentation." Phd thesis, Ecole Centrale de Lille, 2011. http://tel.archives-ouvertes.fr/tel-00708171.
Full textMichaille, Laurent. "Étude des états vibrationnels très excités de la molécule CS2 : dynamique non linéaire et corrélations spectrales." Université Joseph Fourier (Grenoble ; 1971-2015), 1998. http://www.theses.fr/1998GRE10009.
Full textSnape, Christopher. "Applications of the coupled cluster method to pairing problems." Thesis, University of Manchester, 2010. https://www.research.manchester.ac.uk/portal/en/theses/applications-of-the-coupled-cluster-method-to-pairing-problems(c6d69fd0-25cf-4693-ba91-96872c11fc6d).html.
Full textChen, Wei-Ju, and 陳韋儒. "Fermi LAT detected GRB 160623A with bright Submm afterglow ~Double - Jet component~." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/5x3622.
Full text國立中央大學
天文研究所
107
We present observations of LAT detected GRB 160623A in gamma-ray, X-ray, op;cal, and submm. The analysis indicates the post jet-break model describes the X-ray afterglows with the jet-opening angle smaller than 2.4 degrees. We also have bright submm afterglow which is the 3rd or 4th brightest event in the submm range. And result indicates submm spectral index is inconsistent with the X-ray afterglow when we assume the emission originated from the same synchrotron radiation. Combine with observation data and relativistic hydrodynamic jet simulation, which shows the existence of double-jet structure.
Minh-SienYang and 楊明憲. "Observing the change of Fermi level and physical properties of double layers heterostructure by tuning thickness of Sb2Te3." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/6wq6p3.
Full text國立成功大學
物理學系
107
In this thesis, we grown Sb2Te3/Bi2Te3 heterostructure films on Sapphire substrate, the best growth condition are 250℃ for Sb2Te3, 320℃ for Bi2Te3. Under the increase of Sb2Te3 thickness, the surface morphology gradually transforms into island shape, and just when the thickness is 12nm/10nm, ARPES results show that Fermi level is near Dirac point. That is, it represents a reduction in the contribution of the bulk state in the transport properties, and electrons in the topological surface state are highly metallic. The result of electrical measurement by PPMS is that the increase of Sb2Te3 thickness will change the conduction characteristics from n-type to p-type, and increase the surface state contribution while reducing the bulk state contribution.
Hühn, Sebastian. "Kationen-Ordnung in ferri/ferromagnetischen perowskitischen Dünnfilmen." Doctoral thesis, 2015. http://hdl.handle.net/11858/00-1735-0000-0022-6060-B.
Full textExtavour, Marcius H. T. "Fermions and Bosons on an Atom Chip." Thesis, 2009. http://hdl.handle.net/1807/19030.
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