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1.
Adesina, Owolabi Abiona.
Statistical Modelling and the Fokker-Planck Equation.
Degree: 2008, , School of Engineering
URL: http://urn.kb.se/resolve?urn=urn:nbn:se:bth-1177 
► A stochastic process or sometimes called random process is the counterpart to a deterministic process in theory. A stochastic process is a random field,…
(more)
▼ A stochastic process or sometimes called random process is the counterpart to a deterministic process in theory. A stochastic process is a random field, whose domain is a region of space, in other words, a random function whose arguments are drawn from a range of continuously changing values. In this case, Instead of dealing only with one possible 'reality' of how the process might evolve under time (as is the case, for example, for solutions of an ordinary differential equation), in a stochastic or random process there is some indeterminacy in its future evolution described by probability distributions. This means that even if the initial condition (or starting point) is known, there are many possibilities the process might go to, but some paths are more probable and others less. However, in discrete time, a stochastic process amounts to a sequence of random variables known as a time series. Over the past decades, the problems of synergetic are concerned with the study of macroscopic quantitative changes of systems belonging to various disciplines such as natural science, physical science and electrical engineering. When such transition from one state to another take place, fluctuations i.e. (random process) may play an important role. Fluctuations in its sense are very common in a large number of fields and nearly every system is subjected to complicated external or internal influences that are often termed noise or fluctuations. Fokker-Planck equation has turned out to provide a powerful tool with which the effects of fluctuation or noise close to transition points can be adequately be treated. For this reason, in this thesis work analytical and numerical methods of solving Fokker-Planck equation, its derivation and some of its applications will be carefully treated. Emphasis will be on both for one variable and N- dimensional cases.
Subjects/Keywords: Fokker Planck; Stochastic
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APA (6th Edition):
Adesina, O. A. (2008). Statistical Modelling and the Fokker-Planck Equation. (Thesis). , School of Engineering. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:bth-1177
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Adesina, Owolabi Abiona. “Statistical Modelling and the Fokker-Planck Equation.” 2008. Thesis, , School of Engineering. Accessed October 20, 2019.
http://urn.kb.se/resolve?urn=urn:nbn:se:bth-1177.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Adesina, Owolabi Abiona. “Statistical Modelling and the Fokker-Planck Equation.” 2008. Web. 20 Oct 2019.
Vancouver:
Adesina OA. Statistical Modelling and the Fokker-Planck Equation. [Internet] [Thesis]. , School of Engineering; 2008. [cited 2019 Oct 20].
Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:bth-1177.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Adesina OA. Statistical Modelling and the Fokker-Planck Equation. [Thesis]. , School of Engineering; 2008. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:bth-1177
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
2.
Antunes, Laura Catarina Seco.
Radiação de corpo negro: lei de Stefan-Boltzmann, lei do deslocamento de Wien.
Degree: 2012, RCAAP
URL: http://www.rcaap.pt/detail.jsp?id=oai:ubibliorum.ubi.pt:10400.6/2872
► Este estudo contribui para desenvolver nos alunos o gosto pela aprendizagem da Física e, consequentemente, para melhorar o ensino desta disciplina e a qualidade dos…
(more)
▼ Este estudo contribui para desenvolver nos alunos o gosto pela aprendizagem da Física e, consequentemente, para melhorar o ensino desta disciplina e a qualidade dos seus resultados. Pretende-se que os alunos não só adquiram novos conhecimentos mas que fortaleçam os conhecimentos posteriormente adquiridos ao longo dos anos, na área da Física, desenvolvendo um conjunto de competências e capacidade, tanto gerais como específicas da disciplina.
O trabalho apresenta um desenvolvimento mais profundo do tema: Sol e aquecimento, mais especificamente sobre a radiação de corpos negros: Lei de Stefan-Boltzmann e Lei do Deslocamento de Wien.
O comportamento da radiação térmica emitida pelos corpos das mais diversas naturezas é distinto pois uma parte da radiação é refletida enquanto outra parte é absorvida pelo corpo. Estes fenómenos dependem principalmente das características específicas do corpo em estudo.
Alguns cientistas postularam que um corpo responde de forma peculiar à radiação que incide sobre a sua superfície, nascendo a ideia de “corpos negros”. A natureza de corpos negros perfeitos não foi ainda comprovada, uma vez que todo o corpo só age como corpo negro numa determinada gama de radiação, isto é, o corpo tem as suas singularidades.
Este estudo apresenta uma definição de “corpo negro”, um estudo aprofundado sobre a radiação nesses corpos, tal como a teoria na qual estes corpos se baseiam, Lei de Stefan-Boltzmann e Lei de Wien. Por sua vez, este trabalho centra-se num estudo teórico e experimental da aplicabilidade da Lei de Stefan-Boltzmann e respetiva Lei do Deslocamento de Wien.
Advisors/Committee Members: Parada, Paulo.
Subjects/Keywords: Lei de Planck; Lei de Stefan-Boltzmann
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APA (6th Edition):
Antunes, L. C. S. (2012). Radiação de corpo negro: lei de Stefan-Boltzmann, lei do deslocamento de Wien. (Thesis). RCAAP. Retrieved from http://www.rcaap.pt/detail.jsp?id=oai:ubibliorum.ubi.pt:10400.6/2872
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Antunes, Laura Catarina Seco. “Radiação de corpo negro: lei de Stefan-Boltzmann, lei do deslocamento de Wien.” 2012. Thesis, RCAAP. Accessed October 20, 2019.
http://www.rcaap.pt/detail.jsp?id=oai:ubibliorum.ubi.pt:10400.6/2872.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Antunes, Laura Catarina Seco. “Radiação de corpo negro: lei de Stefan-Boltzmann, lei do deslocamento de Wien.” 2012. Web. 20 Oct 2019.
Vancouver:
Antunes LCS. Radiação de corpo negro: lei de Stefan-Boltzmann, lei do deslocamento de Wien. [Internet] [Thesis]. RCAAP; 2012. [cited 2019 Oct 20].
Available from: http://www.rcaap.pt/detail.jsp?id=oai:ubibliorum.ubi.pt:10400.6/2872.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Antunes LCS. Radiação de corpo negro: lei de Stefan-Boltzmann, lei do deslocamento de Wien. [Thesis]. RCAAP; 2012. Available from: http://www.rcaap.pt/detail.jsp?id=oai:ubibliorum.ubi.pt:10400.6/2872
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
3.
Rodrigues, Ana Maria Manso.
Determinação dos tempos de descongelação e das percentagens de água de vidragem de várias espécies de pescado.
Degree: 2014, RCAAP
URL: https://www.rcaap.pt/detail.jsp?id=oai:comum.rcaap.pt:10400.26/16834
► Resumo O estágio decorreu na Eurest Portugal, uma empresa pertencente ao Grupo Compass que é líder mundial no fornecimento de serviços de alimentação e gestão…
(more)
▼ Resumo
O estágio decorreu na Eurest Portugal, uma empresa pertencente ao Grupo
Compass que é líder mundial no fornecimento de serviços de alimentação e gestão de
refeitórios, tanto na área da restauração pública como na coletiva. A gestão dos
refeitórios implica um correto e eficiente manuseamento de todos os produtos e
matérias-primas.
O tema deste trabalho surgiu devido à necessidade da empresa definir os
tempos médios de descongelação para várias espécies de pescado, bem como a
determinação das percentagens de água de vidragem do pescado recebido na unidade,
de modo a averiguar se a informação declarada no rótulo estava correta.
Através do método descrito no decreto de lei nº 37 de 2004 foi determinada a
percentagem de água de vidragem de 37 amostras de pescado (339 tomas), o que
envolveu um total de 12 espécies e 9 fornecedores. Foram comparadas as
percentagens declaradas nos rótulos com as percentagens determinadas
experimentalmente e apenas 5,6% dos rótulos é que apesentavam a mesma
percentagem à que foi determinada experimentalmente.
Quanto aos tempos de descongelação, foram mensurados os tempos de 1713
kg de pescado. A sua medição foi realizada com base num critério de observação e
toque para definir o fim da descongelação. Nesta parte do trabalho encontraram-se
algumas dificuldades devido a algumas práticas incorretas na descongelação o que
impossibilitava a descongelação completa do pescado. Devido à obtenção de poucos
resultados experimentais, foram previstos tempos através do modelo de
Planck e do
modelo da capacitância global, onde se concluiu que não pode ser utilizada a
capacidade total das caixas grandes pois o pescado que fica no centro da caixa não
descongela durante o intervalo de tempo definido pela Eurest.
Também se verificou que o local dentro da câmara (prateleira ou nas banheiras)
também influencia o tempo de descongelação.
Palavras-chave: descongelação, água de vidragem,
Planck, pescado.
vi
Abstract
The internship took place at Eurest Portugal, a company belonging by Compass
Group that is the world leader in the provider of power and management of canteens
services, both in the public and in the collective restoration. The management of
canteens implies a correct and efficient handling of all products and raw materials.
The
subject of this work arose due to the company´s need to define the average
defrosting times for several species of fish, as well as the determination of the
percentages of water glazing of the received fish in order to establish whether the
information declared in the label was correct.
The method described in the Decree Law nº 37 of 2004 the percentage of water
glazing of 37 fish samples (339 units), which involved a total of 12 species and 9 was
determined suppliers. The percentages stated on the labels with the percentages
determined experimentally were compared and only 5.6% of the labels had the same
percentage to that determined experimentally.
Relatively to defrosting times were measured times of 1713.16 kg of…
Advisors/Committee Members: Costa, Rui Manuel Machado da.
Subjects/Keywords: Descongelação; Água de vidragem; Planck; Pescado
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APA (6th Edition):
Rodrigues, A. M. M. (2014). Determinação dos tempos de descongelação e das percentagens de água de vidragem de várias espécies de pescado. (Thesis). RCAAP. Retrieved from https://www.rcaap.pt/detail.jsp?id=oai:comum.rcaap.pt:10400.26/16834
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Rodrigues, Ana Maria Manso. “Determinação dos tempos de descongelação e das percentagens de água de vidragem de várias espécies de pescado.” 2014. Thesis, RCAAP. Accessed October 20, 2019.
https://www.rcaap.pt/detail.jsp?id=oai:comum.rcaap.pt:10400.26/16834.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Rodrigues, Ana Maria Manso. “Determinação dos tempos de descongelação e das percentagens de água de vidragem de várias espécies de pescado.” 2014. Web. 20 Oct 2019.
Vancouver:
Rodrigues AMM. Determinação dos tempos de descongelação e das percentagens de água de vidragem de várias espécies de pescado. [Internet] [Thesis]. RCAAP; 2014. [cited 2019 Oct 20].
Available from: https://www.rcaap.pt/detail.jsp?id=oai:comum.rcaap.pt:10400.26/16834.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Rodrigues AMM. Determinação dos tempos de descongelação e das percentagens de água de vidragem de várias espécies de pescado. [Thesis]. RCAAP; 2014. Available from: https://www.rcaap.pt/detail.jsp?id=oai:comum.rcaap.pt:10400.26/16834
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Georgia Tech
4.
Zhai, Haoyan.
THE APPLICATIONS OF DISCRETE OPTIMAL TRANSPORT IN PATH PLANNING AND DATA CLUSTERING.
Degree: PhD, Mathematics, 2019, Georgia Tech
URL: http://hdl.handle.net/1853/61712
► Optimal transport introduces the concept of Wasserstein distance, which has been widely used in various applications in computational mathematics, machine learning as well as many…
(more)
▼ Optimal transport introduces the concept of Wasserstein distance, which has been widely used in various applications in computational mathematics, machine learning as well as many areas in engineering. Meanwhile, control theory and path planning is an active branch in mathematics and robotics, focusing on algorithms that calculate feasible or optimal paths for robotic systems. In this thesis, we use the properties of the gradient flows induced by Wasserstein-2 metric to design algorithms to handle different types of path planning and control problems. Also, we define the Wasserstein K-means problems on graphs and propose an efficient algorithm to solve it.
First of all, we provide an algorithm to handle the path planning problem in unknown environments. We develop a deterministic approach with finite-step convergence guarantee. Also, there is a theoretical relation between this algorithm and the Fokker-
Planck equations, which bounds the searching region of the algorithm. We use numerical examples to show the efficiency of the algorithm as well as to support the theoretical results.
Then, we generalize the algorithm to solve the general control problem in the unknown environments and similar convergence results can be proven. Besides, there is an evidence that the algorithm is guided by the evolution of Fokker-
Planck equation, and we use experiments to demonstrate our theorems.
We move on to study the optimal path planning in flow field. In this case, the objective function, the traveling time or kinetic energy, is to be minimized with a given flow field. Following the idea of method of evolving junctions, we first transform the original infinite dimensional optimal control into a finite dimensional global optimization problem by introducing junctions located only on the discontinuity positions of the dynamics. To handle the global optimization, intermittent diffusion is used here to guarantee the completeness of the method.
At last, we define the discrete Wasserstein-(1,p) distance that depends on the graph structure. With this distance function, we further propose the Wasserstein K-means problem on a general graph and provide an algorithm in the framework of Lloyd method. The key part of the algorithm is the calculation of discrete Wasserstein-(1,p) distance and the gradient flow induced by Wasserstein-2 metric to solve an optimization with objective function being a linear combination of Wasserstein-(1.p) distance. Examples and simulation results are provided in the thesis.
Advisors/Committee Members: Zhou, Haomin (advisor), Dieci, Luca (committee member), Kang, Sung Ha (committee member), Short, Martin (committee member), Zhang, Fumin (committee member).
Subjects/Keywords: Optimal Transport; Path Planning; Fokker-Planck equation
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APA (6th Edition):
Zhai, H. (2019). THE APPLICATIONS OF DISCRETE OPTIMAL TRANSPORT IN PATH PLANNING AND DATA CLUSTERING. (Doctoral Dissertation). Georgia Tech. Retrieved from http://hdl.handle.net/1853/61712
Chicago Manual of Style (16th Edition):
Zhai, Haoyan. “THE APPLICATIONS OF DISCRETE OPTIMAL TRANSPORT IN PATH PLANNING AND DATA CLUSTERING.” 2019. Doctoral Dissertation, Georgia Tech. Accessed October 20, 2019.
http://hdl.handle.net/1853/61712.
MLA Handbook (7th Edition):
Zhai, Haoyan. “THE APPLICATIONS OF DISCRETE OPTIMAL TRANSPORT IN PATH PLANNING AND DATA CLUSTERING.” 2019. Web. 20 Oct 2019.
Vancouver:
Zhai H. THE APPLICATIONS OF DISCRETE OPTIMAL TRANSPORT IN PATH PLANNING AND DATA CLUSTERING. [Internet] [Doctoral dissertation]. Georgia Tech; 2019. [cited 2019 Oct 20].
Available from: http://hdl.handle.net/1853/61712.
Council of Science Editors:
Zhai H. THE APPLICATIONS OF DISCRETE OPTIMAL TRANSPORT IN PATH PLANNING AND DATA CLUSTERING. [Doctoral Dissertation]. Georgia Tech; 2019. Available from: http://hdl.handle.net/1853/61712
University of Sydney
5.
Noble, Patrick.
Stochastic processes in Astrophysics
.
Degree: 2013, University of Sydney
URL: http://hdl.handle.net/2123/10013
► This thesis makes two contributions to the solar literature. The first is the development and application of a formal statistical framework for describing short-term (daily)…
(more)
▼ This thesis makes two contributions to the solar literature. The first is the development and application of a formal statistical framework for describing short-term (daily) variation in the level of magnetic activity on the Sun. Modelling changes on this time-scale is important because rapid developments of magnetic structures on the sun have important consequences for the space weather experienced on Earth (Committee On The Societal & Economic Impacts Of Severe Space Weather Events, 2008). The second concerns how energetic particles released from the Sun travel through the solar wind. The contribution from this thesis is to resolve a mathematical discrepancy in theoretical models for the transport of charged particles.
Subjects/Keywords: Sunspot Number;
Space Weather;
Fokker-Planck Equation
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APA (6th Edition):
Noble, P. (2013). Stochastic processes in Astrophysics
. (Thesis). University of Sydney. Retrieved from http://hdl.handle.net/2123/10013
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Noble, Patrick. “Stochastic processes in Astrophysics
.” 2013. Thesis, University of Sydney. Accessed October 20, 2019.
http://hdl.handle.net/2123/10013.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Noble, Patrick. “Stochastic processes in Astrophysics
.” 2013. Web. 20 Oct 2019.
Vancouver:
Noble P. Stochastic processes in Astrophysics
. [Internet] [Thesis]. University of Sydney; 2013. [cited 2019 Oct 20].
Available from: http://hdl.handle.net/2123/10013.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Noble P. Stochastic processes in Astrophysics
. [Thesis]. University of Sydney; 2013. Available from: http://hdl.handle.net/2123/10013
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Princeton University
6.
Gudmundsson, Jon Emil.
Probing Early Universe Cosmologies With SPIDER and Planck HFI
.
Degree: PhD, 2014, Princeton University
URL: http://arks.princeton.edu/ark:/88435/dsp01j3860917r
► We describe the design and characterization of the SPIDER balloon-borne experiment which will launch from Antarctica in December 2014. The experiment is designed to measure…
(more)
▼ We describe the design and characterization of the SPIDER balloon-borne experiment which will launch from Antarctica in December 2014. The experiment is designed to measure the polarization of the Cosmic Microwave Background (CMB) with unparalleled instantaneous sensitivity, and in doing so, constrain early universe models. The experiment is ready to deploy. We will emphasize: 1) The cryogenic architecture of the SPIDER flight cryostat. 2) The design and characterization of a capillary assembly which provides a continuous flow of superfluid helium to a 1.8 K temperature stage required to operate adsorption refrigerators cooling each focal plane. 3) The design and build of a Fourier transform spectrometer used to characterize the spectral response of the SPIDER detectors. 4) The optical characterization of the SPIDER telescopes and simulations characterizing susceptibility to polarized sidelobes contamination.
We also describe the analysis of the spatial (beam) response of the High Frequency Instrument (HFI) onboard the
Planck satellite. This characterization work is required for high fidelity cosmological analysis of all-sky maps in six frequency bands spanning 100 to 857 GHz. The beam reconstruction error and bias are constrained using time-domain simulations that include the most significant non-idealities that affect the analysis. Using these simulations, we also verify the consistency of the beam product used for cosmological analysis of the 2014 data release. As part of the beam reconstruction, we characterize the flux of the five outer planets in the six HFI frequency bands. We also verify the absolute photometric calibration of the experiment by comparing planet flux estimates with existing models. Finally, we use planet flux measurements to show that the absolute calibrations of the WMAP and
Planck experiments are consistent at the half percent level.
Advisors/Committee Members: Jones, William C (advisor).
Subjects/Keywords: CMB;
Cosmology;
HFI;
Inflation;
Planck;
SPIDER
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APA ·
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APA (6th Edition):
Gudmundsson, J. E. (2014). Probing Early Universe Cosmologies With SPIDER and Planck HFI
. (Doctoral Dissertation). Princeton University. Retrieved from http://arks.princeton.edu/ark:/88435/dsp01j3860917r
Chicago Manual of Style (16th Edition):
Gudmundsson, Jon Emil. “Probing Early Universe Cosmologies With SPIDER and Planck HFI
.” 2014. Doctoral Dissertation, Princeton University. Accessed October 20, 2019.
http://arks.princeton.edu/ark:/88435/dsp01j3860917r.
MLA Handbook (7th Edition):
Gudmundsson, Jon Emil. “Probing Early Universe Cosmologies With SPIDER and Planck HFI
.” 2014. Web. 20 Oct 2019.
Vancouver:
Gudmundsson JE. Probing Early Universe Cosmologies With SPIDER and Planck HFI
. [Internet] [Doctoral dissertation]. Princeton University; 2014. [cited 2019 Oct 20].
Available from: http://arks.princeton.edu/ark:/88435/dsp01j3860917r.
Council of Science Editors:
Gudmundsson JE. Probing Early Universe Cosmologies With SPIDER and Planck HFI
. [Doctoral Dissertation]. Princeton University; 2014. Available from: http://arks.princeton.edu/ark:/88435/dsp01j3860917r
7.
Sauvé, Alexandre.
Caractérisation des effets systématiques de l'instrument Planck/HFI, propagation et impact sur les données scientifiques : Characterization of the systematic effects on the Planck/HFI instrument, propagation and impact on science data.
Degree: Docteur es, Astrophysique, 2016, Université Toulouse III – Paul Sabatier
URL: http://www.theses.fr/2016TOU30362
► Planck est un satellite de l'ESA lancé en 2009, qui avais pour mission de faire une carte de très grande précision du rayonnement fossile de…
(more)
▼ Planck est un satellite de l'ESA lancé en 2009, qui avais pour mission de faire une carte de très grande précision du rayonnement fossile de l'Univers, afin de mieux comprendre comment il s'est formé. Cet objectif ambitieux nécessite un niveau de maîtrise extrême des effets instrumentaux. Cependant en cours de mission il s'est avéré que le composant responsable de la numérisation des données scientifiques introduisait un bisais important qui compromettait l'exploitation scientifique des données de l'instrument Planck/HFI. Ce travail décris comment ce biais a été compris et corrigé avec succès. Une analyse très poussée a été conduite sur les détecteurs du satellite, la chaine cryogénique embarquée et le composant de numérisation lui même. Ce qui a nécessité une méthodologie spécifique afin de télécharger les données nécessaire depuis le satellite avant sa fin de mission et son décommissionnement.
Planck is an ESA spacecraft launched in 2009, its mission goal was to map with an exquisite precision the first light of Universe, to help understanding how it has formed. This ambitious objective requires a very high level of control on the instrumental effects. During the mission, it has been found that the component responsible of the digitization of scientific data introduced an unexpectedly high bias effect, preventing full exploitation of data from the Planck/HFI instrument. The present work relates how this bias effect was understood and successfully corrected for. A very deep analysis of the spacecraft detectors, the cryogenic chain, and the digitization component has been performed, which required a specific methodology to gather data from the spacecraft before the end of the mission and its decommissioning.
Advisors/Committee Members: Montier, Ludovic (thesis director), Banday, Anthony J. (thesis director).
Subjects/Keywords: ADC; Planck; HFI; Effets systématiques; Instrument; Bolomètre; CMB; ADC; Planck; HFI; Systematics; Bolometer; Instrument; CMB
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APA ·
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Manager
APA (6th Edition):
Sauvé, A. (2016). Caractérisation des effets systématiques de l'instrument Planck/HFI, propagation et impact sur les données scientifiques : Characterization of the systematic effects on the Planck/HFI instrument, propagation and impact on science data. (Doctoral Dissertation). Université Toulouse III – Paul Sabatier. Retrieved from http://www.theses.fr/2016TOU30362
Chicago Manual of Style (16th Edition):
Sauvé, Alexandre. “Caractérisation des effets systématiques de l'instrument Planck/HFI, propagation et impact sur les données scientifiques : Characterization of the systematic effects on the Planck/HFI instrument, propagation and impact on science data.” 2016. Doctoral Dissertation, Université Toulouse III – Paul Sabatier. Accessed October 20, 2019.
http://www.theses.fr/2016TOU30362.
MLA Handbook (7th Edition):
Sauvé, Alexandre. “Caractérisation des effets systématiques de l'instrument Planck/HFI, propagation et impact sur les données scientifiques : Characterization of the systematic effects on the Planck/HFI instrument, propagation and impact on science data.” 2016. Web. 20 Oct 2019.
Vancouver:
Sauvé A. Caractérisation des effets systématiques de l'instrument Planck/HFI, propagation et impact sur les données scientifiques : Characterization of the systematic effects on the Planck/HFI instrument, propagation and impact on science data. [Internet] [Doctoral dissertation]. Université Toulouse III – Paul Sabatier; 2016. [cited 2019 Oct 20].
Available from: http://www.theses.fr/2016TOU30362.
Council of Science Editors:
Sauvé A. Caractérisation des effets systématiques de l'instrument Planck/HFI, propagation et impact sur les données scientifiques : Characterization of the systematic effects on the Planck/HFI instrument, propagation and impact on science data. [Doctoral Dissertation]. Université Toulouse III – Paul Sabatier; 2016. Available from: http://www.theses.fr/2016TOU30362
8.
Fanciullo, Lapo.
Nouveaux aperçus sur les propriétés des poussières à partir des données Planck en intensité et polarisation : New insights on dust properties from Planck intensity and polarization data.
Degree: Docteur es, Sciences de l'Univers, 2015, Paris Saclay
URL: http://www.theses.fr/2015SACLS194
► Les poussières interstellaires sont une composante clé du milieu interstellaire (MIS). Elles jouent non seulement un rôleimportant dans la physique et la chimie du MIS,…
(more)
▼ Les poussières interstellaires sont une composante clé du milieu interstellaire (MIS). Elles jouent non seulement un rôleimportant dans la physique et la chimie du MIS, mais elles servent également de traceur, du gaz via leur émissionthermique, et du champ magnétique interstellaire via la polarisation de cette émission.De nombreux modèles de poussières reproduisent les principales observables sur les poussières (la courbe d'extinction,la distribution spectrale d'énergie (SED), la polarisation en extinction et en émission), tout en respectant les abundancecosmiques élémentaires. Notre compréhension des poussières reste cependant toujours incomplète, en particulier surl'origine physique des variations de l'extinction et de l'émission des poussières dans le MIS. Le changement d'opacitédes poussières entre le milieu diffus et les nuages moléculaires est bien établi, et des modèles physiques d'interprétationont été proposés. Avec ses cartes de l'émission submillimétrique de tout le ciel à plusieurs longueurs d'onde, le surveysubmillimétrique de
Planck nous permet pour la première fois de mesurer la température des poussières, et d'étudierainsi les variations d'opacité des poussières dans le milieu diffus.Cette thèse, basée sur une comparaison des données
Planck avec des mesures en extinction en direction d'étoiles et dequasars, combine modélisation et analyse de données, afin de contraindre les variations des propriétés optiques despoussières dans le MIS diffus, et d'estimer les contributions respectives de l'alignement et de l'évolution des poussières àleur émission polarisée.La première partie de la thèse se focalise sur l'émission non polarisée des poussières dans le MIS diffus. L'étude desvariations de l'émission par unité d'extinction permet de contraindre les variations des propriétées optiques despoussières. Nous fittons les 20 SEDs normalisées en extinction de
Planck Intermediate Results XXIX à l'aide de troismodèles de poussière (Draine & Li 2007, Compiegne et al 2011, Jones etal 2013). Le meilleur accord entre modèle etobservations est obtenu pour le modèle utilisant les grains plus émissifs (Jones 2013), dont les propriétés optiques sontbasées sur des données de laboratoires portant sur les silicates et carbones amorphes. En combinant la mesure del'extinction et de la SED sur la même ligne de visée, nous obtenons un nouvel estimateur de l'intensité du rayonnementinterstellaire G0,, qui s'avère moins biaisé que celui obtenu par un fit de la SED. Aucun des modèles n'arrive àreproduire simultanément les variations de G0 et de la SED à propriétés optiques des poussières fixes. A l'aide de notreestimateur, nous démontrons que la variation des propriétées optiques et de l'intensité du rayonnement interstellaire ontdes contributions semblables aux variations observées des SED dans le MIS diffus.La seconde partie de la thèse se focalise sur l'extinction et l'émission polarisées dans les nuages moléculaires. Enconfrontant des données
Planck et des observations stellaires à un modèle de poussières, nous tentons de…
Advisors/Committee Members: Guillet, Vincent (thesis director), Boulanger, François (thesis director).
Subjects/Keywords: Milieu interstellaire; Poussières; Polarisation; Planck; Modélisation; Interstellar medium; Dust; Polarization; Planck; Modeling
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APA (6th Edition):
Fanciullo, L. (2015). Nouveaux aperçus sur les propriétés des poussières à partir des données Planck en intensité et polarisation : New insights on dust properties from Planck intensity and polarization data. (Doctoral Dissertation). Paris Saclay. Retrieved from http://www.theses.fr/2015SACLS194
Chicago Manual of Style (16th Edition):
Fanciullo, Lapo. “Nouveaux aperçus sur les propriétés des poussières à partir des données Planck en intensité et polarisation : New insights on dust properties from Planck intensity and polarization data.” 2015. Doctoral Dissertation, Paris Saclay. Accessed October 20, 2019.
http://www.theses.fr/2015SACLS194.
MLA Handbook (7th Edition):
Fanciullo, Lapo. “Nouveaux aperçus sur les propriétés des poussières à partir des données Planck en intensité et polarisation : New insights on dust properties from Planck intensity and polarization data.” 2015. Web. 20 Oct 2019.
Vancouver:
Fanciullo L. Nouveaux aperçus sur les propriétés des poussières à partir des données Planck en intensité et polarisation : New insights on dust properties from Planck intensity and polarization data. [Internet] [Doctoral dissertation]. Paris Saclay; 2015. [cited 2019 Oct 20].
Available from: http://www.theses.fr/2015SACLS194.
Council of Science Editors:
Fanciullo L. Nouveaux aperçus sur les propriétés des poussières à partir des données Planck en intensité et polarisation : New insights on dust properties from Planck intensity and polarization data. [Doctoral Dissertation]. Paris Saclay; 2015. Available from: http://www.theses.fr/2015SACLS194
9.
Thomas, Matthieu.
Détermination de la constante de Planck au moyen d'une balance du watt : Determination of the Planck constant by means of a watt balance.
Degree: Docteur es, Lasers, nanosciences et métrologie, 2015, Paris, CNAM
URL: http://www.theses.fr/2015CNAM1033
► Dans l'optique d'une modification du Système international d'unités (SI) fondée sur la valeur de constantes fondamentales de la physique, le Laboratoire national de métrologie et…
(more)
▼ Dans l'optique d'une modification du Système international d'unités (SI) fondée sur la valeur de constantes fondamentales de la physique, le Laboratoire national de métrologie et d'essais (LNE) a développé une expérience de balance du watt de manière à participer à la redéfinition de l'unité de masse : le kilogramme. Cette unité est en effet la dernière des unités de base du SI qui repose encore sur un artefact matériel : le prototype international du kilogramme.Une bobine circulaire, plongée dans un flux magnétique radial et horizontal est le coeur du dispositif de la balance du watt. Parcourue par un courant (phase statique), il s'exerce sur elle une force de Laplace nominalement verticale qui est comparée au poids d'une masse étalon. Déplacée de manière nominalement verticale (phase dynamique), il apparaît à ses bornes une tension.Il résulte de la combinaison de ces deux étapes l'égalité d'une puissance électrique et d'une puissance mécanique virtuelles. La détermination des grandeurs électriques par comparaison à l'effet Josephson et à l'effet Hall quantique permet d'établir une relation entre une masse macroscopique et la constante de Planck.Après une dizaine d'années de développements séparés des différents éléments, de très nombreuses caractérisations et améliorations, les premiers travaux de cette thèse ont consisté en l'assemblage des sous-ensembles de la balance du watt.Nous nous sommes ensuite intéressés à l'évaluation des composantes principales d'incertitudes et notamment à celles liées aux problématiques d'alignement : en particulier l'alignement sur la verticale des faisceaux lasers des interféromètres mesurant la vitesse de la bobine, l'alignement sur l'horizontale des pivots du comparateur de forces, et enfin l'évaluation des forces de Laplace horizontales et des moments parasites s'exerçant sur la bobine et leurs influences sur la détermination de la constante de Planck.Une valeur de la constante de Planck a été déterminée à l'été 2014, qui conduit à h=6,6260688(20)E-34 Js, évaluation dont l'incertitude-type relative est 3.1E-7. Des propositions pour améliorer cette incertitude sont avancées.
In the pespective of a modification of the Système international of units (SI) based on value of fondamental constants of physics, the Laboratoire national de métrologie et d'essais (LNE) has developped a watt balance experiment, in order to contribute to the redefinition of the unit of mass: the kilogramm. Indeed, this unit is the last one of the base units of the SI which is based on a material artefact: the international prototype of kilogram.A circular coil, immersed in a horizontal and radial magnetic flux is the centre of the watt balance device. Flown by a current (static phase), it exerts on it a nominaly vertical Laplace force which is compared to the weight of a standard mass. Moved nominally vertically (dynamic phase), it appears at its terminals a voltage.It results from the combination of these two steps an equality of virtual electric and mechanical powers. The determination of electrical…
Advisors/Committee Members: Juncar, Patrick (thesis director).
Subjects/Keywords: Constante de Planck; Métrologie; Si; Kilogramme; Forces; Planck constant; Metrology; Si; Kilogram; Forces; 530
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APA ·
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APA (6th Edition):
Thomas, M. (2015). Détermination de la constante de Planck au moyen d'une balance du watt : Determination of the Planck constant by means of a watt balance. (Doctoral Dissertation). Paris, CNAM. Retrieved from http://www.theses.fr/2015CNAM1033
Chicago Manual of Style (16th Edition):
Thomas, Matthieu. “Détermination de la constante de Planck au moyen d'une balance du watt : Determination of the Planck constant by means of a watt balance.” 2015. Doctoral Dissertation, Paris, CNAM. Accessed October 20, 2019.
http://www.theses.fr/2015CNAM1033.
MLA Handbook (7th Edition):
Thomas, Matthieu. “Détermination de la constante de Planck au moyen d'une balance du watt : Determination of the Planck constant by means of a watt balance.” 2015. Web. 20 Oct 2019.
Vancouver:
Thomas M. Détermination de la constante de Planck au moyen d'une balance du watt : Determination of the Planck constant by means of a watt balance. [Internet] [Doctoral dissertation]. Paris, CNAM; 2015. [cited 2019 Oct 20].
Available from: http://www.theses.fr/2015CNAM1033.
Council of Science Editors:
Thomas M. Détermination de la constante de Planck au moyen d'une balance du watt : Determination of the Planck constant by means of a watt balance. [Doctoral Dissertation]. Paris, CNAM; 2015. Available from: http://www.theses.fr/2015CNAM1033
10.
PetrÃcio Barrozo da Silva.
Transporte de partÃculas em sistemas mesoscÃpicos.
Degree: PhD, 2009, Universidade Federal do Ceará
URL: http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=2684
;
► Neste trabalho, estudamos as propriedades do transporte de partÃculas em sistemas mesoscÃpicos. Na primeira parte, usamos o modelo proposto anteriormente por Zapperi et al. (Phys.…
(more)
▼ Neste trabalho, estudamos as propriedades do transporte de partÃculas em sistemas mesoscÃpicos. Na primeira parte, usamos o modelo proposto anteriormente por Zapperi et al. (Phys. Rev. Lett. 86, 3622 (2001)) para descrever o transporte de partÃculas superamortecidas e interagentes no estado estacionÃrio, na presenÃa de um obstÃculo para o fluxo, e confinadas em um canal com largura da ordem do comprimento caracterÃstico do sistema. Com este modelo, obtivemos uma equaÃÃo diferencial de primeira ordem nÃo-linear, cuja soluÃÃo em 1D Ã capaz de descrever a densidade ao longo de um canal 2D para diferentes sistemas de partÃculas (e.g., vÃrtices em supercondutores, colÃides e pedestres, todos simulados por dinÃmica molecular) e diferentes tipos de obstÃculos (e.g., uma barreira de energia, um canal com uma constriÃÃo e uma rede de pinos no centro do canal). Observamos que este modelo pode ser usado para descrever o escoamento de qualquer sistema de partÃculas superamortecido, desde que as interaÃÃes entre elas possam alcanÃar distÃncias maiores que os primeiros vizinhos.
Na segunda parte deste trabalho, estudamos o escoamento de partÃculas interagentes (nÃo necessariamente superamortecidas) confinadas por paredes assimÃtricas. Aqui o objetivo à descrever a dinÃmica de pedestres e a dinÃmica de vÃrtices em supercondutores. Em ambos os sistemas, as paredes assimÃtricas sÃo responsÃveis pela introduÃÃo de um sentido preferencial para o fluxo. No caso da dinÃmica de pedestres, estudamos as propriedades do sistema quando os pedestres andam em sentidos opostos. Verificamos que este confinamento induz uma ordem responsÃvel pela maximizaÃÃo do escoamento. Esta ordem pode ser destruÃda quando variamos a densidade, a velocidade, a razÃo entre a largura do canal e a sua rugosidade, o ruÃdo externo e a assimetria do canal. Verificamos tambÃm que as transiÃÃes de ordem-desordem neste sistema sÃo acompanhadas de metaestabilidades e ciclos de histerese. No caso de vÃrtices em
supercondutores, verificamos que, para pequenos campos de comensurabilidade entre o nÃmero de "catracas" e o nÃmero de vÃrtices, o sistema apresenta mÃltiplas transiÃÃes de depinamento.
In this work we investigate the transport properties of particles in mesoscopic systems. In the first part, we use the model originally proposed by Zapperi et al. (Phys. Rev. Lett. 86, 3622 (2001)) to describe the
steady-state transport of overdamped particles in the presence of an obstacle and confined to a channel with width of the order of the characteristic size of the system. With this model, we obtain a non-linear first-order differential equation, whose solution in 1D is capable to describe the behavior of the particle density along a 2D channel for different particle systems (e.g., superconducting vortices, colloids and pedestrians, all simulated with molecular dynamics) and obstacle types (e.g, one energy barrier, a channel constriction and a network of pinning centers). We observe that such a model can be used to…
Advisors/Committee Members: Josà Soares de Andrade JÃnior.
Subjects/Keywords: SISTEMAS DINAMICOS; VÃrtices; ColÃides; Pedestres; DinÃmica molecular; EquaÃÃo de Fokker-Planck; Vortices; Colloids; Pedestrian; Molecular dynamics; Fokker-Planck
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APA (6th Edition):
Silva, P. B. d. (2009). Transporte de partÃculas em sistemas mesoscÃpicos. (Doctoral Dissertation). Universidade Federal do Ceará. Retrieved from http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=2684 ;
Chicago Manual of Style (16th Edition):
Silva, PetrÃcio Barrozo da. “Transporte de partÃculas em sistemas mesoscÃpicos.” 2009. Doctoral Dissertation, Universidade Federal do Ceará. Accessed October 20, 2019.
http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=2684 ;.
MLA Handbook (7th Edition):
Silva, PetrÃcio Barrozo da. “Transporte de partÃculas em sistemas mesoscÃpicos.” 2009. Web. 20 Oct 2019.
Vancouver:
Silva PBd. Transporte de partÃculas em sistemas mesoscÃpicos. [Internet] [Doctoral dissertation]. Universidade Federal do Ceará 2009. [cited 2019 Oct 20].
Available from: http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=2684 ;.
Council of Science Editors:
Silva PBd. Transporte de partÃculas em sistemas mesoscÃpicos. [Doctoral Dissertation]. Universidade Federal do Ceará 2009. Available from: http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=2684 ;
11.
George Frederick Tavares da Silva.
TermoestatÃstica do Movimento Superamortecido de
PartÃculas Interagentes
.
Degree: PhD, 2013, Universidade Federal do Ceará
URL: http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=9127
;
► As equaÃÃes nÃo lineares de Fokker-Planck - EFPNL sÃo equaÃÃes diferenciais capazes de descrever macroscopicamente sistemas fÃsicos e quÃmicos que apresentam algum tipo de difusÃo…
(more)
▼ As equaÃÃes nÃo lineares de Fokker-Planck - EFPNL sÃo equaÃÃes diferenciais capazes de descrever macroscopicamente sistemas fÃsicos e quÃmicos que apresentam algum tipo de difusÃo anÃmala. Como exemplos de aplicaÃÃes de importÃncia cientÃfica e tecnolÃgica, podemos citar o processo de transporte em meios porosos, a dinÃmica de crescimento de superfÃcies, difusÃo de polÃmeros do tipo micelas quebrÃveis e dinÃmica de vÃrtices em supercondutores do tipo II. Para este Ãltimo, sabe-se que o movimento de vÃrtices causa dissipaÃÃo de energia, e a interaÃÃo entre eles pode ser representada por uma funÃÃo do tipo Bessel modificada. Portanto, no sentido de modelar vÃrtices em supercondutores, estudamos o movimento de partÃculas interagentes em regime de superamortecimento e em contato com um reservatÃrio tÃrmico a temperatura T, utilizando esse mesmo tipo de interaÃÃo para vÃrtices. Mostramos entÃo, por meio do formalismo das equaÃÃes nÃo lineares de Fokker-Planck, que hà uma associaÃÃo do sistema em estudo, no limite de temperatura T=0, com a estatÃstica generalizada de Tsallis. Para comprovar essa relaÃÃo direta utilizamos o conhecido teorema H e suas generalizaÃÃes, o qual permite uma relaÃÃo entre o funcional entrÃpico generalizado com uma famÃlia de EFPNL. Mostramos ainda que para temperaturas relativamente altas, o sistema deve ser melhor representado pela estatÃstica padrÃo de Boltzmann-Gibbs, pois a funÃÃo distribuiÃÃo de partÃculas, no estado estacionÃrio, tem a forma de uma gaussiana. AlÃm dos resultados analÃticos para a funÃÃo distribuiÃÃo, resultados numÃricos foram obtidos para o movimento superamortecido de partÃculas interagentes por meio de DinÃmica Molecular com a inclusÃo de um ruÃdo branco (aditivo), confirmando assim os resultados teÃricos.
The Fokker-Planck equations of nonlinear - EFPNL are differential equations able to describe macroscopic physical and chemical systems that have some type of anomalous diffusion. Examples of applications of scientific and technological importance, we may cite the case of transport in porous media, the growth dynamics of surfaces, diffusion of polymerlike breakable micelles and the dynamics of interacting vortices in type II superconductors. For the latter, it is known that the vortex motion causes power dissipation, and the interaction between them can be represented by a modified Bessel function type. Therefore, in order to model vortices in superconductors, we study the overdamped motion of interacting particles in contact with a thermal reservoir at temperature T, using the same type of interaction for vortices. We show, by means of the nonlinear Fokker-Planck equations formalism, that there is an association of the system under study, in the temperature limit T = 0, with the generalized Tsallis statistics. To prove this direct relation, we use the well-known H theorem and its generalizations, which allows an unambiguous relationship between the generalized entropy function with EFPNL. We show that even for relatively high temperatures, the system should be…
Advisors/Committee Members: Andrà Auto Moreira.
Subjects/Keywords: FISICA DA MATERIA CONDENSADA; DifusÃo, Fokker-Planck, Tsallis, VÃrtices, Supercondutores, DinÃmica Molecular.; Diffusion, Fokker-Planck, Tsallis, Vortices, Superconductors, Molecular Dynamics
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
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Manager
APA (6th Edition):
Silva, G. F. T. d. (2013). TermoestatÃstica do Movimento Superamortecido de
PartÃculas Interagentes
. (Doctoral Dissertation). Universidade Federal do Ceará. Retrieved from http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=9127 ;
Chicago Manual of Style (16th Edition):
Silva, George Frederick Tavares da. “TermoestatÃstica do Movimento Superamortecido de
PartÃculas Interagentes
.” 2013. Doctoral Dissertation, Universidade Federal do Ceará. Accessed October 20, 2019.
http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=9127 ;.
MLA Handbook (7th Edition):
Silva, George Frederick Tavares da. “TermoestatÃstica do Movimento Superamortecido de
PartÃculas Interagentes
.” 2013. Web. 20 Oct 2019.
Vancouver:
Silva GFTd. TermoestatÃstica do Movimento Superamortecido de
PartÃculas Interagentes
. [Internet] [Doctoral dissertation]. Universidade Federal do Ceará 2013. [cited 2019 Oct 20].
Available from: http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=9127 ;.
Council of Science Editors:
Silva GFTd. TermoestatÃstica do Movimento Superamortecido de
PartÃculas Interagentes
. [Doctoral Dissertation]. Universidade Federal do Ceará 2013. Available from: http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=9127 ;
12.
Cartailler, Jérôme.
Asymptotic of Poisson-Nernst-Planck equations and application to the voltage distribution in cellular micro-domains : Equations de Poisson-Nernst-Planck asymptotiques et application à la distribution de tension dans des mico-domaines cellulaires.
Degree: Docteur es, Mathématiques Appliquées, 2017, Université Pierre et Marie Curie – Paris VI
URL: http://www.theses.fr/2017PA066297
► Dans cette thèse j’étudie l’impact de la géométrie de micro et nano-domaines biologiques sur les propriétés d'électrodiffusion, ceci à l'aide des équations aux dérivées partielles…
(more)
▼ Dans cette thèse j’étudie l’impact de la géométrie de micro et nano-domaines biologiques sur les propriétés d'électrodiffusion, ceci à l'aide des équations aux dérivées partielles de Poisson-Nernst-Planck. Je considère des domaines non-triviaux ayant une forme cuspide ou elliptique. Mon objectif est de développer des modèles ainsi que des méthodes mathématiques afin d'étudier les caractéristiques électriques de ces nano/micro-domaines, et ainsi mieux comprendre comment les signaux électriques sont modulés à ces échelles. Dans la première partie j’étudie le voltage à l'équilibre pour un électrolyte dans un domaine borné, et ayant un fort excès de charges positives. Je montre que le premier temps de sortie dans une boule chargée dépend de la surface et non du volume. J’étudie ensuite la géométrie composées d'une boule à laquelle est attachée un domaine cuspide. Je construis ensuite une solution asymptotique pour le voltage dans les cas 2D et 3D et je montre qu’ils sont donnés au premier ordre par la même expression. Enfin, j’obtiens la même conclusion en considérant une géométrie formée d'une ellipse, dont je construis une solution asymptotique du voltage en 2D et 3D. La seconde partie porte sur la modélisation de la compartimentalisation électrique des épines dendritiques. A partir de simulations numériques, je mets en évidence le lien entre la polarisation de concentration dans l'épine et sa géométrie. Je compare ensuite mon modèle à des données de microscopie. Je développe une méthode de déconvolution pour extraire la dynamique rapide du voltage à partir des données de microscopie. Enfin j’estime la résistance du cou et montre que celle-ci ne suit pas la loi d'Ohm.
In this PhD I study how electro-diffusion within biological micro and nano-domains is affected by their shapes using the Poisson-Nernst-Planck (PNP) partial differential equations. I consider non-trivial shapes such as domains with cusp and ellipses. Our goal is to develop models, as well as mathematical tools, to study the electrical properties of micro and nano-domains, to understand better how electrical neuronal signaling is regulated at those scales. In the first part I estimate the steady-state voltage inside an electrolyte confined in a bounded domain, within which we assume an excess of positive charge. I show the mean first passage time in a charged ball depends on the surface and not on the volume. I further study a geometry composed of a ball with an attached cusp-shaped domain. I construct an asymptotic solution for the voltage in 2D and 3D and I show that to leading order expressions for the voltage in 2D and 3D are identical. Finally, I obtain similar conclusion considering an elliptical-shaped domain for which I construct an asymptotic solution for the voltage in 2D and 3D. In the second part, I model the electrical compartmentalization in dendritic spines. Based on numerical simulations, I show how spines non-cylindrical geometry leads to concentration polarization effects. I then compare my model to experimental data of microscopy…
Advisors/Committee Members: Holcman, David (thesis director).
Subjects/Keywords: Poisson-Nernst-Planck; Electrodiffusion; Transformation conformes; Schwartz-Christoffel; Möbius; EDP non-Lineaire; Polarisation de concentration; Poisson-Nernst-Planck; Electrodiffusion; Asymptotic; 510
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Cartailler, J. (2017). Asymptotic of Poisson-Nernst-Planck equations and application to the voltage distribution in cellular micro-domains : Equations de Poisson-Nernst-Planck asymptotiques et application à la distribution de tension dans des mico-domaines cellulaires. (Doctoral Dissertation). Université Pierre et Marie Curie – Paris VI. Retrieved from http://www.theses.fr/2017PA066297
Chicago Manual of Style (16th Edition):
Cartailler, Jérôme. “Asymptotic of Poisson-Nernst-Planck equations and application to the voltage distribution in cellular micro-domains : Equations de Poisson-Nernst-Planck asymptotiques et application à la distribution de tension dans des mico-domaines cellulaires.” 2017. Doctoral Dissertation, Université Pierre et Marie Curie – Paris VI. Accessed October 20, 2019.
http://www.theses.fr/2017PA066297.
MLA Handbook (7th Edition):
Cartailler, Jérôme. “Asymptotic of Poisson-Nernst-Planck equations and application to the voltage distribution in cellular micro-domains : Equations de Poisson-Nernst-Planck asymptotiques et application à la distribution de tension dans des mico-domaines cellulaires.” 2017. Web. 20 Oct 2019.
Vancouver:
Cartailler J. Asymptotic of Poisson-Nernst-Planck equations and application to the voltage distribution in cellular micro-domains : Equations de Poisson-Nernst-Planck asymptotiques et application à la distribution de tension dans des mico-domaines cellulaires. [Internet] [Doctoral dissertation]. Université Pierre et Marie Curie – Paris VI; 2017. [cited 2019 Oct 20].
Available from: http://www.theses.fr/2017PA066297.
Council of Science Editors:
Cartailler J. Asymptotic of Poisson-Nernst-Planck equations and application to the voltage distribution in cellular micro-domains : Equations de Poisson-Nernst-Planck asymptotiques et application à la distribution de tension dans des mico-domaines cellulaires. [Doctoral Dissertation]. Université Pierre et Marie Curie – Paris VI; 2017. Available from: http://www.theses.fr/2017PA066297
Université de Grenoble
13.
Hurier, Guillaume.
Etude des amas de galaxies avec l'expérience PLANCK, via l'effet Sunyaev-Zel'dovich : The Sunyaev-Zel'dovich effect from galaxy clusters with the PLANCK satellite.
Degree: Docteur es, Physique, 2012, Université de Grenoble
URL: http://www.theses.fr/2012GRENY079
► Cette thèse se focalise sur l'étude des amas de galaxies, via l'effet Sunyaev-Zel'dovich (tSZ), qui consiste en l'interaction de ces même amas avec le fond…
(more)
▼ Cette thèse se focalise sur l'étude des amas de galaxies, via l'effet Sunyaev-Zel'dovich (tSZ), qui consiste en l'interaction de ces même amas avec le fond diffus cosmologique. Pour ce faire j'ai utilisé les données expérimentale de l'instrument HFI du satellite PLANCK. Cette thèse ce découpe en trois parties majeures, (1) L'analyse et le traitement des données en temps, des données brut jusqu'au cartes du ciel, ce focalisant tout particulièrement sur les effets systématiques. (2) Le développement de méthode de séparation de sources, permettant la construction de cartes par émission astrophysique (tout particulièrement l'effet Sunyaev-Zel-dovich) à partir de données multi-fréquences. (3) L'analyse physique des cartes d'effet Sunyaev-Zel'dovich, produit par le gaz d'électron chaud présent dans les amas de galaxies. Ce travail permet la mise en place de contrainte, sur le profile de pression des amas de galaxies, sur la présence de filaments de matière entre des système binaire d'amas de galaxies, ainsi que la mise en évidence du spectre de puissance de l'effet tSZ.
This work is focusing on the study of the thermal Sunyaev-Zel'dovich (tSZ) effect produced by the gaz of hot electrons present in galaxy clusters. This effect consist on the interaction between the Cosmic Microwave Background (CMB) and galaxiy clusters. For this purpuse I used the data from the High Frequency Instrument (HFI) of the PLANCK satellite. This work can be divided in three main parts : (1) The study of systématics effects present in the Time Ordered Data and in the construction of the sky maps. (2) The devellopement of new components seperation methods for the tSZ effect in the context of multi-frequencies observations. (3) The physical analysis of the tSZ effect providing constraints on the galaxy clusters properties. This work allow to put some constraints on the galaxy clusters pressure profile, on the WHIM components present in the inter-clusters medium between binary system of galaxy clusters and on the detection of the tSZ power spectrum with PLANCK.
Advisors/Committee Members: Macias-Pérez, Juan-Francisco (thesis director), Désert, François-Xavier (thesis director).
Subjects/Keywords: Sunyaev-Zel'dovich; PLANCK; CMB; Amas de galaxies; Cosmologie; Sunyaev-Zel'dovich; PLANCK; CMB; Galaxy clusters; Cosmology; 530
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APA (6th Edition):
Hurier, G. (2012). Etude des amas de galaxies avec l'expérience PLANCK, via l'effet Sunyaev-Zel'dovich : The Sunyaev-Zel'dovich effect from galaxy clusters with the PLANCK satellite. (Doctoral Dissertation). Université de Grenoble. Retrieved from http://www.theses.fr/2012GRENY079
Chicago Manual of Style (16th Edition):
Hurier, Guillaume. “Etude des amas de galaxies avec l'expérience PLANCK, via l'effet Sunyaev-Zel'dovich : The Sunyaev-Zel'dovich effect from galaxy clusters with the PLANCK satellite.” 2012. Doctoral Dissertation, Université de Grenoble. Accessed October 20, 2019.
http://www.theses.fr/2012GRENY079.
MLA Handbook (7th Edition):
Hurier, Guillaume. “Etude des amas de galaxies avec l'expérience PLANCK, via l'effet Sunyaev-Zel'dovich : The Sunyaev-Zel'dovich effect from galaxy clusters with the PLANCK satellite.” 2012. Web. 20 Oct 2019.
Vancouver:
Hurier G. Etude des amas de galaxies avec l'expérience PLANCK, via l'effet Sunyaev-Zel'dovich : The Sunyaev-Zel'dovich effect from galaxy clusters with the PLANCK satellite. [Internet] [Doctoral dissertation]. Université de Grenoble; 2012. [cited 2019 Oct 20].
Available from: http://www.theses.fr/2012GRENY079.
Council of Science Editors:
Hurier G. Etude des amas de galaxies avec l'expérience PLANCK, via l'effet Sunyaev-Zel'dovich : The Sunyaev-Zel'dovich effect from galaxy clusters with the PLANCK satellite. [Doctoral Dissertation]. Université de Grenoble; 2012. Available from: http://www.theses.fr/2012GRENY079
University of Florida
14.
Krishnaswamy, Sriram.
Uncertainty Forecasting for Lorenz Models Using a Tensor Decomposition Approach.
Degree: MS, Mechanical Engineering - Mechanical and Aerospace Engineering, 2016, University of Florida
URL: http://ufdc.ufl.edu/UFE0050086
► This thesis addresses the application of the transient Fokker-Planck Equation (FPE) with the Lorenz 1995 model to aid wind forecasting. We first look at the…
(more)
▼ This thesis addresses the application of the transient Fokker-
Planck Equation (FPE) with the Lorenz 1995 model to aid wind forecasting. We first look at the existing numerical solution of high dimensional FPE using a tensor decomposition approach combined with Chebyshev spectral differentiation. This is done in order to reduce the degrees of freedom (DOF), i.e, size of approximation and achieve better accuracy at higher dimensions. The fundamental idea is to use CANDECOMP/PARAFAC decomposition (CPD) in order to ``decouple'' the spatial dimensions. The cost to pay for lower DOFs is nonlinearity in the resulting equations, which must be solved.
Advisors/Committee Members: KUMAR,MRINAL (committee chair).
Subjects/Keywords: Atmospheric models; Cephalopelvic disproportion; Fokker Planck equation; Forecasting models; Matrices; Modeling; Predictability; Stochastic models; Tensors; Weather; fokker-planck – lorenz – uncertainty
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APA (6th Edition):
Krishnaswamy, S. (2016). Uncertainty Forecasting for Lorenz Models Using a Tensor Decomposition Approach. (Masters Thesis). University of Florida. Retrieved from http://ufdc.ufl.edu/UFE0050086
Chicago Manual of Style (16th Edition):
Krishnaswamy, Sriram. “Uncertainty Forecasting for Lorenz Models Using a Tensor Decomposition Approach.” 2016. Masters Thesis, University of Florida. Accessed October 20, 2019.
http://ufdc.ufl.edu/UFE0050086.
MLA Handbook (7th Edition):
Krishnaswamy, Sriram. “Uncertainty Forecasting for Lorenz Models Using a Tensor Decomposition Approach.” 2016. Web. 20 Oct 2019.
Vancouver:
Krishnaswamy S. Uncertainty Forecasting for Lorenz Models Using a Tensor Decomposition Approach. [Internet] [Masters thesis]. University of Florida; 2016. [cited 2019 Oct 20].
Available from: http://ufdc.ufl.edu/UFE0050086.
Council of Science Editors:
Krishnaswamy S. Uncertainty Forecasting for Lorenz Models Using a Tensor Decomposition Approach. [Masters Thesis]. University of Florida; 2016. Available from: http://ufdc.ufl.edu/UFE0050086
Université Paris-Sud – Paris XI
15.
Guery, David.
Étude statistique des structures à grand redshift observées par les satellites Planck et Herschel : Statistical study of high redshift sources observed by Planck and Herschel satellites.
Degree: Docteur es, Physique, 2015, Université Paris-Sud – Paris XI
URL: http://www.theses.fr/2015PA112162
► Les modèles et les observations actuels de l’Univers sont en accords aux grandes échelles. Néanmoins, cela ne permet pas d’expliquer la formation des structures baryoniques…
(more)
▼ Les modèles et les observations actuels de l’Univers sont en accords aux grandes échelles. Néanmoins, cela ne permet pas d’expliquer la formation des structures baryoniques dans l’Univers. Afin de contraindre la formation des structures dans l’Univers, des observations sont nécessaires à différents redshifts pour observer les structures à différentes étapes d’évolutions. Le satellite Planck donne accès à des objets dont les redshifts sont compris entre z=2 et z=4. Ainsi environ 1200 objets extragalactiques susceptibles d’être à haut redshift sont détectés dans 26% du ciel, autour des pôles galactiques. Un sous échantillon de 228 sources est observé à plus grande sensibilité et résolution angulaire avec le satellite Herschel. Grâce à ces observations je peux résoudre les sources ponctuelles de Planck en plusieurs sources Herschel. J’identifie alors trois possibilités de type de sources, soit c’est une candidate de source amplifiée par lentillage gravitationnel, soit c’est un candidat d’amas de galaxies à haut redshift, soit c’est un alignement de sources fortuit le long de la ligne de visé. Après analyse, j’ai identifié dans cet échantillon 11 sources amplifiées par lentillage gravitationnel parmi les plus brillantes du ciel sub-millimétrique. Ces sources ont des redshifts compris entre z=2.2 et z=3.6 (Canameras et al., 2015) et permettent de sonder la formation stellaire dans l’Univers lointain. Il reste 217 surdensités de sources que j’ai étudié. En utilisant la couleur des sources Herschel, j’ai calculé une estimation de la densité des sources. 50% des champs Herschel de l’échantillon on une surdensité supérieur à 10sigma lorsque l’on sélectionne les sources rouges (S250/S350 < 1.4 et S500/S350 > 0.6). Cela montre que l’échantillon est principalement composé de surdensité de source rouge. En ajustant un corps noir modifié à 35K sur les données photométrique Herschel-SPIRE je montre que la distribution de redshift photométrique des sources piquent à z=2. Notre échantillon se compose donc de 11 sources lentillées et 217 potentiels amas de galaxies à redshift z~2. Ces potentiels amas de galaxies se compose d’en moyenne 9 sources dans 4.5’ de diamètre. Les sources individuelles ont des luminosités infrarouges d’environ 4.1012 Lsol ce qui correspond d’après Bell et al. 2003 à un taux de formation stellaire (SFR) de 700 Msol.yr-1. Cela mène pour les potentielles structures à une luminosité de 4.1013 Msol et un SFR de 7000 Msol.yr-1. Notre échantillon trace donc les structures denses du ciel à fort taux de formation stellaire. Cet échantillon sera donc clé dans la compréhension de la formation des structures et des étoiles à des redshifts autour de z=2.
Actual models and observations of the Universe agreed at large scale. But the formation of baryonic structures remains unknown. To constrain structure formation in the Universe, observatoins are needed at different redshift to see different evolution steps. Planck satellite gives an acces to objetcs in the redshift range z=2 to z=4. Thus we detect about 1200…
Advisors/Committee Members: Dole, Hervé (thesis director).
Subjects/Keywords: Astrophysique; Galaxies infrarouges; Haut redshift; Planck; Herschel; Formation des structures; Astrophysics; Infrared galaxies; High redshift; Planck; Herschel; Structure formation
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APA (6th Edition):
Guery, D. (2015). Étude statistique des structures à grand redshift observées par les satellites Planck et Herschel : Statistical study of high redshift sources observed by Planck and Herschel satellites. (Doctoral Dissertation). Université Paris-Sud – Paris XI. Retrieved from http://www.theses.fr/2015PA112162
Chicago Manual of Style (16th Edition):
Guery, David. “Étude statistique des structures à grand redshift observées par les satellites Planck et Herschel : Statistical study of high redshift sources observed by Planck and Herschel satellites.” 2015. Doctoral Dissertation, Université Paris-Sud – Paris XI. Accessed October 20, 2019.
http://www.theses.fr/2015PA112162.
MLA Handbook (7th Edition):
Guery, David. “Étude statistique des structures à grand redshift observées par les satellites Planck et Herschel : Statistical study of high redshift sources observed by Planck and Herschel satellites.” 2015. Web. 20 Oct 2019.
Vancouver:
Guery D. Étude statistique des structures à grand redshift observées par les satellites Planck et Herschel : Statistical study of high redshift sources observed by Planck and Herschel satellites. [Internet] [Doctoral dissertation]. Université Paris-Sud – Paris XI; 2015. [cited 2019 Oct 20].
Available from: http://www.theses.fr/2015PA112162.
Council of Science Editors:
Guery D. Étude statistique des structures à grand redshift observées par les satellites Planck et Herschel : Statistical study of high redshift sources observed by Planck and Herschel satellites. [Doctoral Dissertation]. Université Paris-Sud – Paris XI; 2015. Available from: http://www.theses.fr/2015PA112162
16.
Miniussi, Antoine.
Étude et modélisation de l’interaction des particules cosmiques avec les détecteurs cryogéniques de l'astronomie submillimétrique et X : Study and modeling of cosmic ray interaction with cryogenic detectors for submillimeter and X-ray space astronomy.
Degree: Docteur es, Sciences de l'Univers, 2015, Paris Saclay
URL: http://www.theses.fr/2015SACLS004
► Les particules cosmiques sont émises par différentes sources galactiques et sont composées de protons et de noyaux d'hélium. Ces éléments interagissent avec les matériaux et…
(more)
▼ Les particules cosmiques sont émises par différentes sources galactiques et sont composées de protons et de noyaux d'hélium. Ces éléments interagissent avec les matériaux et y déposent leur énergie par interaction nucléaire. L'instrument Planck/HFI a observé le ciel depuis l'espace dans le but de cartographier le fond diffus cosmologique. Pour cela, HFI embarque un plan focal refroidit à 100 mK composé de 54 bolomètres. Le flux de particules cosmiques, interagissant avec les composants des détecteurs (thermomètre, grille, wafer), chauffe ponctuellement les capteurs (glitches) ce qui entraine une dégradation du signal scientifique. Leur étude a révélé un autre effet thermique caractérisé par un chauffage global du plan focal de l'ordre du microkelvin, les High Coincidence Events (HCE). Deux familles de HCE ont été isolées dans les données : les rapides, générés par des gerbes de particules secondaires formées dans les couches externes du satellite et interagissant avec l'ensemble de l'instrument HFI ; les lents, généré par la vaporisation d'hélium formant un lien thermique ponctuel entre le plan focal et l'étage à 1,6 K lui faisant face. L'exposition d'une matrice de bolomètres TES à une source de particules α a démontré une réponse similaire mais également des glitches simultanés entre les pixels.Ces recherches démontrent que les particules cosmiques et les gerbes de particules doivent être étudiées afin d'éviter des effets thermiques prédominant. Le développement des prochaines générations de détecteurs, devront ainsi prendre en compte ces interactions indissociables d'une mission spatiale et s'en prémunir.
Cosmic rays are emitted from different galactic sources and consist of protons and helium nuclei. These elements interact with matter and deposit part of their energy by nuclear interaction.The Planck/HFI instrument observed the sky from space to map the Cosmic Microwave Background. For this purpose, HFI has a focal plane cool down to 100 mK and composed of 54 bolometers. The interactions of the cosmic ray flux with the detectors' components (thermometer, grid and wafer) heat up regularly the sensor (glitches) which leads to a degradation of the scientific signal. Studying them revealed another thermal effect characterized by a thermal increase of the entire focal plane up to the microkelvin range, the High Coincidence Events (HCE).Two HCE famillies were separated: the fast ones, generated by cosmic ray showers developed in the external layers of the satellite and interacting with the entire HFI instrument and the slow ones, generated by the vaporisation of helium forming a ponctual thermal link between the focal plane and the 1.6 K stage facing it.Exposure of a TES bolometer matrix to an α particules source showed a similar response but also simultaneous glitches on several pixels. This work demonstrates that cosmic rays and particle showers on next low temperature experiments has to be studied to prevent predominating thermal effects from it. The developpement of futur space experiments will have to take…
Advisors/Committee Members: Pajot, François (thesis director).
Subjects/Keywords: Particule cosmique; Bolomètre; Tes; Helium; Cryogénie; Planck/HFI; Cosmic ray; Bolometer; Tes; Helium; Cryogenics; Planck/HFI
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APA (6th Edition):
Miniussi, A. (2015). Étude et modélisation de l’interaction des particules cosmiques avec les détecteurs cryogéniques de l'astronomie submillimétrique et X : Study and modeling of cosmic ray interaction with cryogenic detectors for submillimeter and X-ray space astronomy. (Doctoral Dissertation). Paris Saclay. Retrieved from http://www.theses.fr/2015SACLS004
Chicago Manual of Style (16th Edition):
Miniussi, Antoine. “Étude et modélisation de l’interaction des particules cosmiques avec les détecteurs cryogéniques de l'astronomie submillimétrique et X : Study and modeling of cosmic ray interaction with cryogenic detectors for submillimeter and X-ray space astronomy.” 2015. Doctoral Dissertation, Paris Saclay. Accessed October 20, 2019.
http://www.theses.fr/2015SACLS004.
MLA Handbook (7th Edition):
Miniussi, Antoine. “Étude et modélisation de l’interaction des particules cosmiques avec les détecteurs cryogéniques de l'astronomie submillimétrique et X : Study and modeling of cosmic ray interaction with cryogenic detectors for submillimeter and X-ray space astronomy.” 2015. Web. 20 Oct 2019.
Vancouver:
Miniussi A. Étude et modélisation de l’interaction des particules cosmiques avec les détecteurs cryogéniques de l'astronomie submillimétrique et X : Study and modeling of cosmic ray interaction with cryogenic detectors for submillimeter and X-ray space astronomy. [Internet] [Doctoral dissertation]. Paris Saclay; 2015. [cited 2019 Oct 20].
Available from: http://www.theses.fr/2015SACLS004.
Council of Science Editors:
Miniussi A. Étude et modélisation de l’interaction des particules cosmiques avec les détecteurs cryogéniques de l'astronomie submillimétrique et X : Study and modeling of cosmic ray interaction with cryogenic detectors for submillimeter and X-ray space astronomy. [Doctoral Dissertation]. Paris Saclay; 2015. Available from: http://www.theses.fr/2015SACLS004
17.
Verdier, Loïc.
Détection de structures par combinaison des données Planck et BOSS et détection simultanée d’amas de galaxies dans les données Planck et ROSAT : Detection of structures by combining Planck and BOSS data and simultaneous detection of galaxy clusters in Planck and ROSAT data.
Degree: Docteur es, Astroparticules et cosmologie, 2016, Paris Saclay
URL: http://www.theses.fr/2016SACLS192
► Issus de l'effondrement gravitationnel des fluctuations de matière primordiales, les amas de galaxies sont constitués d'un halo de matière noire, d'un plasma de baryon ou…
(more)
▼ Issus de l'effondrement gravitationnel des fluctuations de matière primordiales, les amas de galaxies sont constitués d'un halo de matière noire, d'un plasma de baryon ou « gaz chaud » et de galaxies. Le comptage des amas apporte des contraintes fortes sur la cosmologie.Mon travail consiste à améliorer la détection de la composante de gaz chaud des amas, à la fois pour des structures proches et lointaines. Ce gaz chaud est détectable dans les cartes du satellite Planck par effet Sunyaev-Zel'dovich et dans les cartes du satellite ROSAT par rayonnement de freinage.La première partie de cette thèse consiste à détecter du gaz chaud dans les cartes de Planck à la position des quasars de l'expérience BOSS, donc dans des structures lointaines.Le signal est dominé par une émission de type poussière. J'ai donc élaboré un filtre capable d'extraire un signal de gaz chaud sous-dominant et de le séparer de l'émission de poussière. Le signal de gaz chaud obtenu par cette approche est significatif pour les structures à redshift z >2.5.La seconde partie de cette thèse, la détection simultanée, est dédiée à la construction d'un filtre capable d'extraire des amas (à z<1.5) individuellement dans les données ROSAT et adapté à la statistique du bruit. Ce filtre est en outre conçu dans la perspective d'être combiné avec le filtre utilisé pour détecter les amas dans les données Planck. L'objectif final étant d'obtenir plus d'amas moins massifs.
Originating from the gravitational collapse of the primordial fluctuations of matter, galaxy clusters are the mixture of a dark matter halo, a baryonic plasma also called « hot gas » and several galaxies. Cluster counts provide stringent constraints on cosmology.Improving the detection of the hot gas component in nearby or distant structures is the main goal of my work. We can detect this hot gas in the Planck satellite maps thanks to the Sunyaev-Zel'dovich effect and in the ROSAT satellite maps by bremsstrahlung.The first part of my thesis is dedicated to the detection of hot gas in Planck maps at the positions of BOSS quasars, so in distant structures.Dust-like emission dominates our signal. I developped a new filter in order to separate the possible sub-dominant hot gas emision from the dust one. I get a significnt hot gas signal for structures with redshift z >2.5.In the second part of the thesis, the simultaneous detection, I build a filter suited for extracting clusters (z<1.5) individually in the ROSAT data respecting the noise statitistics. This filter is also designed to be combined with the filter used for detecting clusters in Planck maps. Increasing the number of less massive clusters will be the final goal.
Advisors/Committee Members: Melin, Jean-Baptiste (thesis director).
Subjects/Keywords: Cosmologie; Amas de galaxies; Filtrage; Planck; Sdss-Boss; Rosat; Cosmology; Galaxy clusters; Filtering; Planck; Sdss-Boss; Rosat
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APA ·
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APA (6th Edition):
Verdier, L. (2016). Détection de structures par combinaison des données Planck et BOSS et détection simultanée d’amas de galaxies dans les données Planck et ROSAT : Detection of structures by combining Planck and BOSS data and simultaneous detection of galaxy clusters in Planck and ROSAT data. (Doctoral Dissertation). Paris Saclay. Retrieved from http://www.theses.fr/2016SACLS192
Chicago Manual of Style (16th Edition):
Verdier, Loïc. “Détection de structures par combinaison des données Planck et BOSS et détection simultanée d’amas de galaxies dans les données Planck et ROSAT : Detection of structures by combining Planck and BOSS data and simultaneous detection of galaxy clusters in Planck and ROSAT data.” 2016. Doctoral Dissertation, Paris Saclay. Accessed October 20, 2019.
http://www.theses.fr/2016SACLS192.
MLA Handbook (7th Edition):
Verdier, Loïc. “Détection de structures par combinaison des données Planck et BOSS et détection simultanée d’amas de galaxies dans les données Planck et ROSAT : Detection of structures by combining Planck and BOSS data and simultaneous detection of galaxy clusters in Planck and ROSAT data.” 2016. Web. 20 Oct 2019.
Vancouver:
Verdier L. Détection de structures par combinaison des données Planck et BOSS et détection simultanée d’amas de galaxies dans les données Planck et ROSAT : Detection of structures by combining Planck and BOSS data and simultaneous detection of galaxy clusters in Planck and ROSAT data. [Internet] [Doctoral dissertation]. Paris Saclay; 2016. [cited 2019 Oct 20].
Available from: http://www.theses.fr/2016SACLS192.
Council of Science Editors:
Verdier L. Détection de structures par combinaison des données Planck et BOSS et détection simultanée d’amas de galaxies dans les données Planck et ROSAT : Detection of structures by combining Planck and BOSS data and simultaneous detection of galaxy clusters in Planck and ROSAT data. [Doctoral Dissertation]. Paris Saclay; 2016. Available from: http://www.theses.fr/2016SACLS192
University of Colorado
18.
Damrongwiriyanupap, Nattapong.
Modeling the Penetration of Multi-Species Aggressive Chemicals into Concrete Structures.
Degree: PhD, 2010, University of Colorado
URL: http://scholar.colorado.edu/cven_gradetds/35
► Chloride is one of the aggressive chemicals that can threat to reinforced concrete structures. This threat is aggravated by damage due to corrosion of…
(more)
▼ Chloride is one of the aggressive chemicals that can threat to reinforced concrete structures. This threat is aggravated by damage due to corrosion of reinforcing steel. Over the years, there have been several models related to chloride diffusion in concrete for predicting the service life of reinforced concrete structures subjected to chloride attack. These can be mathematically characterized by diffusion equation based on Fick's law and by sophisticated transport theory, the Nernst-
Planck equation. In this thesis, statistical, theoretical, and experimental studies were conducted on the penetration of deicing salts into concrete structures mainly focused on chloride-induced corrosion of reinforcement.
A statistical study presented an analytic method based on a simple solution of one-dimensional diffusion equation, Fick's law, for predicting the probabilistic features of corrosion initiation time of reinforcement in concrete structures subjected to chloride environments. A theoretical modeling was conducted to investigate ion transport in concrete described based on the physical model, the Nernst-
Planck equation, which included diffusion mechanism due to ionic concentration gradient and migration process due to electrostatic potential gradient. The model considered the transport of not only chloride ion but also other chemical species involved in the concrete pore solution such as hydroxyl, sodium, potassium, and calcium ions. Then, the model was extended to study the effect of moisture and temperature on the transport of these ions. The two coupled effects of moisture diffusion and chloride penetration; and heat flow and chloride penetration were incorporated in the mathematical model. Several numerical examples were simulated and solved by the proposed models and the obtained results agreed very well with the available test data. The results also showed the basic trends of ion transport in concrete with various initial and boundary conditions. An experimental study on multi-species aggressive chemicals diffusion in concrete was performed based on chloride ponding test. The penetration rate of different chloride-based solutions related to deicers used for ice and snow control was selected as a focus of this task. The experimental results obtained from this study showed that chloride ingress into concrete is dependent on the cations associated in solutions.
Advisors/Committee Members: Yunping Xi, Victor Saouma, George Hearn, Sivaselvan Mettupalayam, Kevin Rens.
Subjects/Keywords: chloride; concrete; deicing salts; moisture; temperature; Nernst-Planck equation; Civil Engineering
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APA ·
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MLA ·
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APA (6th Edition):
Damrongwiriyanupap, N. (2010). Modeling the Penetration of Multi-Species Aggressive Chemicals into Concrete Structures. (Doctoral Dissertation). University of Colorado. Retrieved from http://scholar.colorado.edu/cven_gradetds/35
Chicago Manual of Style (16th Edition):
Damrongwiriyanupap, Nattapong. “Modeling the Penetration of Multi-Species Aggressive Chemicals into Concrete Structures.” 2010. Doctoral Dissertation, University of Colorado. Accessed October 20, 2019.
http://scholar.colorado.edu/cven_gradetds/35.
MLA Handbook (7th Edition):
Damrongwiriyanupap, Nattapong. “Modeling the Penetration of Multi-Species Aggressive Chemicals into Concrete Structures.” 2010. Web. 20 Oct 2019.
Vancouver:
Damrongwiriyanupap N. Modeling the Penetration of Multi-Species Aggressive Chemicals into Concrete Structures. [Internet] [Doctoral dissertation]. University of Colorado; 2010. [cited 2019 Oct 20].
Available from: http://scholar.colorado.edu/cven_gradetds/35.
Council of Science Editors:
Damrongwiriyanupap N. Modeling the Penetration of Multi-Species Aggressive Chemicals into Concrete Structures. [Doctoral Dissertation]. University of Colorado; 2010. Available from: http://scholar.colorado.edu/cven_gradetds/35
Universidade de Brasília
19.
Marcio Tavares de Castro.
Equações de difusão associadas a séries temporais estocásticas : Kramers-Moyal versus Fokker-Planck.
Degree: 2009, Universidade de Brasília
URL: http://bdtd.bce.unb.br/tedesimplificado/tde_busca/arquivo.php?codArquivo=4853
► Equac~oes de difus~ao s~ao largamente utilizadas na obtenc~ao de propriedades de series temporais estocasticas. O objetivo principal deste trabalho e determinar os processos pelos quais…
(more)
▼ Equac~oes de difus~ao s~ao largamente utilizadas na obtenc~ao de propriedades de series temporais estocasticas. O objetivo principal deste trabalho e determinar os processos pelos quais uma equac~ao de difus~ao deve ser modelada por uma expans~ao de Kramers-Moyal ou por uma equac~ao de Fokker-
Planck. Este estudo sera feito atraves da utilizac~ao de func~oes caractersticas em sua forma can^onica e da chamada func~ao de Levy, introduzida pelo matematico franc^es Paul Levy para medir a dist^ancia de distribuic~oes para uma gaussiana. Vericaremos como a converg^encia de distribuic~oes de variaveis aleatorias in- uencia a escolha do tipo de equac~ao difusiva a ser adotada. Veremos que os conceitos de auto-similiridade e continuidade em distribuic~ao na analise de variaveis aleatorias s~ao determinantes na obtenc~ao das propriedades difusivas de um sistema estocastico. Em particular, estudaremos o movimento Browniano modelado por mapas lineares com rudo aleatorio. Daremos bastante ^enfase ao papel do rudo ao mostrar, analiticamente e computacionalmente, que sua forma in ui no tipo de difus~ao apresentado pelo sistema. Como perspectiva de trabalho, enfocaremos a possibilidade de utilizac~ao de equac~oes difusivas na modelagem de series nanceiras.
Advisors/Committee Members: Tarcísio Marciano da Rocha Filho, Annibal Dias de Figueiredo Neto, Iram Marcelo Gléria.
Subjects/Keywords: processos estocásticos; equação de difusão; Kramers-Moyal; Fokker-Planck; FISICA
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APA (6th Edition):
Castro, M. T. d. (2009). Equações de difusão associadas a séries temporais estocásticas : Kramers-Moyal versus Fokker-Planck. (Thesis). Universidade de Brasília. Retrieved from http://bdtd.bce.unb.br/tedesimplificado/tde_busca/arquivo.php?codArquivo=4853
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Castro, Marcio Tavares de. “Equações de difusão associadas a séries temporais estocásticas : Kramers-Moyal versus Fokker-Planck.” 2009. Thesis, Universidade de Brasília. Accessed October 20, 2019.
http://bdtd.bce.unb.br/tedesimplificado/tde_busca/arquivo.php?codArquivo=4853.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Castro, Marcio Tavares de. “Equações de difusão associadas a séries temporais estocásticas : Kramers-Moyal versus Fokker-Planck.” 2009. Web. 20 Oct 2019.
Vancouver:
Castro MTd. Equações de difusão associadas a séries temporais estocásticas : Kramers-Moyal versus Fokker-Planck. [Internet] [Thesis]. Universidade de Brasília; 2009. [cited 2019 Oct 20].
Available from: http://bdtd.bce.unb.br/tedesimplificado/tde_busca/arquivo.php?codArquivo=4853.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Castro MTd. Equações de difusão associadas a séries temporais estocásticas : Kramers-Moyal versus Fokker-Planck. [Thesis]. Universidade de Brasília; 2009. Available from: http://bdtd.bce.unb.br/tedesimplificado/tde_busca/arquivo.php?codArquivo=4853
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Kansas
20.
Li, Xi.
Dynamics of A Degenerate Fokker-Planck Equation and Its Application.
Degree: PhD, Mathematics, 2015, University of Kansas
URL: http://hdl.handle.net/1808/21706
► In this project, a Fokker-Planck equation with two singular points is studied. The equation is derived from a stochastic evolution equation, LMM-SABR model, which is…
(more)
▼ In this project, a Fokker-
Planck equation with two singular points is studied. The equation is derived from a stochastic evolution equation, LMM-SABR model, which is widely used in financial industry. It is difficult to directly study the original equation due to the singularity. As an alternative approach, we introduce appropriate modifications to certain terms of original Fokker-
Planck equation at each singular point so that the modified equation has a stationary solution. With the stable stationary solution, the intermediate behavior of the modified Fokker-
Planck equation can be captured and described to some extent. The non-modified solutions are compared to modified solutions within finite time and a relatively concrete estimation is given in terms of the modification parameter and the given finite time. We also study some possible modifications. For each modification, the properties of the stationary solution are given. Some numerical results of the time-evolution solutions for these modified equations are also included. As an attempt, we have initiated in this project the study of the difference between the modified and non-modified stochastic differential equations (SDEs). Although no complete analytical results are available, our initial work appears pointing in a promising direction, based on the numerical simulation results that we have observed. The further study of the SDEs will be carried out in the future work.
Advisors/Committee Members: Liu, Weishi (advisor), Liu, Weishi (cmtemember), Hu, Yaozhong (cmtemember), Stanislavova, Milena (cmtemember), Van Vleck, Erik (cmtemember), Zhang, Jianbo (cmtemember).
Subjects/Keywords: Mathematics; Applied mathematics; Degenerate; Dynamics; Fokker-Planck Equation; Stochastic Differential Equation
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APA (6th Edition):
Li, X. (2015). Dynamics of A Degenerate Fokker-Planck Equation and Its Application. (Doctoral Dissertation). University of Kansas. Retrieved from http://hdl.handle.net/1808/21706
Chicago Manual of Style (16th Edition):
Li, Xi. “Dynamics of A Degenerate Fokker-Planck Equation and Its Application.” 2015. Doctoral Dissertation, University of Kansas. Accessed October 20, 2019.
http://hdl.handle.net/1808/21706.
MLA Handbook (7th Edition):
Li, Xi. “Dynamics of A Degenerate Fokker-Planck Equation and Its Application.” 2015. Web. 20 Oct 2019.
Vancouver:
Li X. Dynamics of A Degenerate Fokker-Planck Equation and Its Application. [Internet] [Doctoral dissertation]. University of Kansas; 2015. [cited 2019 Oct 20].
Available from: http://hdl.handle.net/1808/21706.
Council of Science Editors:
Li X. Dynamics of A Degenerate Fokker-Planck Equation and Its Application. [Doctoral Dissertation]. University of Kansas; 2015. Available from: http://hdl.handle.net/1808/21706
21.
Wilson, Daniel.
Quasi-Optical Modelling of Telescope
Systems for Planck and STEAMR.
Degree: 2014, RIAN
URL: http://eprints.maynoothuniversity.ie/5402/
► This thesis is concerned with the high-frequency quasi-optical modelling of telescope systems, with special attention paid to the Planck satellite, but further work is also…
(more)
▼ This thesis is concerned with the high-frequency quasi-optical modelling of telescope
systems, with special attention paid to the Planck satellite, but further work is also
performed on the Stratosphere-Troposphere Exchange And climate Monitor Radiome-
ter (STEAMR) and the Far Infrared Instrument (FIRI). The primary work surrounds
the modelling of far sidelobe (FSL) patterns of the Planck telescope, with a view to
replicating features seen in some of the difference maps made by the 857-GHz channel
of Planck's High Frequency Instrument (HFI). This is done using a variety of techniques
in a number of software packages. The General Reector Antenna Software Package
(GRASP9) is used for accurate characterisation of the FSLs using two analysis methods: Physical Optics (PO), and Geometrical Optics (GO) with the Geometrical Theory
of Diffraction (GTD). This is then compared against two simplified paraxial lens models
of the telescope, namely the Projected-Aperture (PA) technique and Gaussian Beam
Mode Analysis (GBMA). PA is performed by Fresnel integration of fields from source
to sky, while GBM requires decomposition of a field into a set of Gauss-Laguerre modes
which are propagated from source to sky using a ray matrix formalism. The motivation
for analysing the Planck FSL structure is to test the assumption that features in the
difference map are a result of manufacturing imperfections in the detector horns. To
test this hypothesis a number of altered horn geometries are modelled using the NUI
Maynooth Experimental Physics departments in-house waveguide mode-matching soft-
ware called SCATTER, and these are then used in the analysis of the telescope system.
Further use of SCATTER is illustrated in work on ultra-Gaussian horns for STEAMR,
and here it is tested against commercial waveguide modelling software Microwave Wizard
(uWW).
Further modelling is performed for the Cardiff test-bed of the Planck telescope simulator,
which was used for qualification of the Planck HFI
ight horns pre-launch. Here we test
the hypothesis that manufacturing imperfections could be missed if the effects on beam
pattern were imperceptible to measurement. This is done using GRASP9, as is the
modelling of FIRI, a multi-beam spectral/spatial interferometer which will hopefully
break current constraints on angular resolution obtainable at infra-red wavelengths.
In general, this thesis aims to provide insight into the modelling of quasi-optical telescope
systems, with particular emphasis on multi-moded systems, providing useful information
for future data analysis by the Planck project team.
Subjects/Keywords: Experimental Physics; Quasi-Optical Modelling; Telescope Systems; Planck; STEAMR
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APA (6th Edition):
Wilson, D. (2014). Quasi-Optical Modelling of Telescope
Systems for Planck and STEAMR. (Thesis). RIAN. Retrieved from http://eprints.maynoothuniversity.ie/5402/
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Wilson, Daniel. “Quasi-Optical Modelling of Telescope
Systems for Planck and STEAMR.” 2014. Thesis, RIAN. Accessed October 20, 2019.
http://eprints.maynoothuniversity.ie/5402/.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Wilson, Daniel. “Quasi-Optical Modelling of Telescope
Systems for Planck and STEAMR.” 2014. Web. 20 Oct 2019.
Vancouver:
Wilson D. Quasi-Optical Modelling of Telescope
Systems for Planck and STEAMR. [Internet] [Thesis]. RIAN; 2014. [cited 2019 Oct 20].
Available from: http://eprints.maynoothuniversity.ie/5402/.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Wilson D. Quasi-Optical Modelling of Telescope
Systems for Planck and STEAMR. [Thesis]. RIAN; 2014. Available from: http://eprints.maynoothuniversity.ie/5402/
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Oregon State University
22.
Larson, Richard Ross.
A photoelectric cell and allied equipment for student determination of Planck's constant.
Degree: MS, Physics, 1949, Oregon State University
URL: http://hdl.handle.net/1957/53047
Subjects/Keywords: Planck; M. (Max); 1822-1900
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APA (6th Edition):
Larson, R. R. (1949). A photoelectric cell and allied equipment for student determination of Planck's constant. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/53047
Chicago Manual of Style (16th Edition):
Larson, Richard Ross. “A photoelectric cell and allied equipment for student determination of Planck's constant.” 1949. Masters Thesis, Oregon State University. Accessed October 20, 2019.
http://hdl.handle.net/1957/53047.
MLA Handbook (7th Edition):
Larson, Richard Ross. “A photoelectric cell and allied equipment for student determination of Planck's constant.” 1949. Web. 20 Oct 2019.
Vancouver:
Larson RR. A photoelectric cell and allied equipment for student determination of Planck's constant. [Internet] [Masters thesis]. Oregon State University; 1949. [cited 2019 Oct 20].
Available from: http://hdl.handle.net/1957/53047.
Council of Science Editors:
Larson RR. A photoelectric cell and allied equipment for student determination of Planck's constant. [Masters Thesis]. Oregon State University; 1949. Available from: http://hdl.handle.net/1957/53047
23.
Hasan, A. B. M. Shamim Ul.
Simulation and theoretical analysis for stochastic dynamics of biochemical networks : 生化学ネットワークの確率論的ダイナミクスのシミュレーションと理論解析.
Degree: 博士（情報工学）, 2018, Kyushu Institute of Technology / 九州工業大学
URL: http://hdl.handle.net/10228/00006536
► Stochasticity in gene regulatory network has become increasingly distinguished in the current thinking of system biology. So it is important to know the variety of…
(more)
▼ Stochasticity in gene regulatory network has become increasingly distinguished in the current thinking of system biology. So it is important to know the variety of noise in gene regulatory network. Here, we constructed different types of gene regulatory networks, two-gene regulated mutual activation network of positive feedback; two-gene regulated mutual repression network of positive feedback. We have investigated the dynamical behavior of noise i.e. noise induced bistable (bimodal), multistable (multimodal) of this gene regulatory networks in deterministic and stochastic approaches at the steady state level. Also, we have investigated the one gene with respect to another one in both deterministic, stochastic environments with non-cooperative transcription factor binding / unbinding on the promoter region by using non-symmetric kinetic parameters to predict the bimodal and multimodal gene expression.On the other hand, biological memory is a ubiquitous function that can generate a sustained response to a transient inductive stimulus. To better understand this function, we must consider the mechanisms by which different structures of genetic networks achieve memory. Here, we investigated two competitive gene regulatory network models: the regulated mutual activation network (MAN) and the regulated mutual repression network (MRN). Stochasticity deteriorated the memory function of both the MAN and the MRN models.Theoretical analysis was performed to support the simulation results. We exemplified the stochastic potential profile of the one-variable rate equation deriving from the MAN and MRN models. In the presence of noise, a stochastic potential and the mean first-time passage (MFTP) are used to investigate bistability and memory persistency by the Fokker-
Planck equation (FPE), which is derived from the chemical Langevin equation.Mathematical comparison by simulation and theoretical analysis identified functional differences in the stochastic memory between the competitive models: specifically, the MAN provided much more robust, persistent memory than the MRN. The stochastic memory pattern of the MAN can be adjusted by changing the binding strength of the activators, whereas the MRN required highly cooperative and strong binding repressors for robust memory.Therefore, we should select the MAN or MRN for an optimal, rational design. If a robust memory is required, a mutual activation network should be selected. If the opposite state of protein synthesis is necessary, a mutual repression network must be selected, although the memory effect is fragile. This fragility may be related to the fact that suppression cascades amplify noise compared with activation cascades. A mutual activation network comprising two protein kinases, p42 MAPK and Cdc2, is suggested to require robust memory. On the other hand, a mutual repression network comprising the cI and Cro proteins would require a gene expression system opposite to that of robust memory. A Notch-Delta mutual repression network is an intelligible example to communicate…
Advisors/Committee Members: 倉田, 博之.
Subjects/Keywords: Genetic noise; Cooperativity; Bistability; Memory; Fokker-Planck; Potential profile
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APA (6th Edition):
Hasan, . A. B. M. S. U. (2018). Simulation and theoretical analysis for stochastic dynamics of biochemical networks : 生化学ネットワークの確率論的ダイナミクスのシミュレーションと理論解析. (Thesis). Kyushu Institute of Technology / 九州工業大学. Retrieved from http://hdl.handle.net/10228/00006536
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Hasan, A B M Shamim Ul. “Simulation and theoretical analysis for stochastic dynamics of biochemical networks : 生化学ネットワークの確率論的ダイナミクスのシミュレーションと理論解析.” 2018. Thesis, Kyushu Institute of Technology / 九州工業大学. Accessed October 20, 2019.
http://hdl.handle.net/10228/00006536.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Hasan, A B M Shamim Ul. “Simulation and theoretical analysis for stochastic dynamics of biochemical networks : 生化学ネットワークの確率論的ダイナミクスのシミュレーションと理論解析.” 2018. Web. 20 Oct 2019.
Vancouver:
Hasan ABMSU. Simulation and theoretical analysis for stochastic dynamics of biochemical networks : 生化学ネットワークの確率論的ダイナミクスのシミュレーションと理論解析. [Internet] [Thesis]. Kyushu Institute of Technology / 九州工業大学; 2018. [cited 2019 Oct 20].
Available from: http://hdl.handle.net/10228/00006536.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Hasan ABMSU. Simulation and theoretical analysis for stochastic dynamics of biochemical networks : 生化学ネットワークの確率論的ダイナミクスのシミュレーションと理論解析. [Thesis]. Kyushu Institute of Technology / 九州工業大学; 2018. Available from: http://hdl.handle.net/10228/00006536
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Vanderbilt University
24.
Arnold, Joshua Robert.
Reducing uncertainty in the characterization and modeling of reactive transport processes in blended cement mortar.
Degree: PhD, Environmental Engineering, 2014, Vanderbilt University
URL: http://etd.library.vanderbilt.edu/available/etd-04072014-105428/
;
► Cements blended with industrial byproducts are ubiquitous construction materials widely used in waste management. The use of blended cements as barriers for nuclear waste management…
(more)
▼ Cements blended with industrial byproducts are ubiquitous construction materials widely used in waste management. The use of blended cements as barriers for nuclear waste management necessitates prediction of durability and long-term performance. A key component of durability prediction is mechanistically based reactive transport modeling. This work identifies critical parametric and model uncertainties within three key components of reactive transport modeling for blended cementitious materials: mass transport, mass conservation, and thermodynamic characterization. Studies of electroneutral ionic diffusion and the electrostatic interaction of dissolved ionic species and charged cement pore surfaces suggest that the influence of electrical interaction on transport may be more significant than previously surmised. A novel technique for measuring the elemental composition of reacted cementitious material in mortars compares favorably with established laboratory leaching techniques. Thermodynamic parameters developed for unblended cements are demonstrated to be generally applicable to the description of blended cements in both equilibrium and reactive transport modeling.
Advisors/Committee Members: Florence Sanchez (committee member), Hans van der Sloot (committee member), J.C.L. Meeussen (committee member), Christine Langton (committee member), John Ayers (committee member), Andrew C. Garrabrants (chair), David S. Kosson (chair).
Subjects/Keywords: supplementary cementitious materials; blended cement; SEM; Nernst-Planck; diffusion; reactive transport
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APA (6th Edition):
Arnold, J. R. (2014). Reducing uncertainty in the characterization and modeling of reactive transport processes in blended cement mortar. (Doctoral Dissertation). Vanderbilt University. Retrieved from http://etd.library.vanderbilt.edu/available/etd-04072014-105428/ ;
Chicago Manual of Style (16th Edition):
Arnold, Joshua Robert. “Reducing uncertainty in the characterization and modeling of reactive transport processes in blended cement mortar.” 2014. Doctoral Dissertation, Vanderbilt University. Accessed October 20, 2019.
http://etd.library.vanderbilt.edu/available/etd-04072014-105428/ ;.
MLA Handbook (7th Edition):
Arnold, Joshua Robert. “Reducing uncertainty in the characterization and modeling of reactive transport processes in blended cement mortar.” 2014. Web. 20 Oct 2019.
Vancouver:
Arnold JR. Reducing uncertainty in the characterization and modeling of reactive transport processes in blended cement mortar. [Internet] [Doctoral dissertation]. Vanderbilt University; 2014. [cited 2019 Oct 20].
Available from: http://etd.library.vanderbilt.edu/available/etd-04072014-105428/ ;.
Council of Science Editors:
Arnold JR. Reducing uncertainty in the characterization and modeling of reactive transport processes in blended cement mortar. [Doctoral Dissertation]. Vanderbilt University; 2014. Available from: http://etd.library.vanderbilt.edu/available/etd-04072014-105428/ ;
Universidade Estadual de Campinas
25.
Samogin, Eunice d'Avila.
Brecha espectral na geração de corrente por onda híbrida inferior
.
Degree: 1997, Universidade Estadual de Campinas
URL: http://repositorio.unicamp.br/jspui/handle/REPOSIP/278556
► Resumo: A geração de corrente por onda híbrida inferior LH ("lower hybrid"), é a técnica mais promissora para a obtenção de corrente contínua para se…
(more)
▼ Resumo: A geração de corrente por onda híbrida inferior LH ("lower hybrid"), é a técnica mais promissora para a obtenção de corrente contínua para se chegar à fusão termonuclear controlada. A exitência da "brecha espectral" ("spectral gap") não permite a conciliação satisfatória entre resultados teóricos e medidas experimentais da corrente gerada. A teoria tem previsto correntes sempre menores que as medidas. Neste trabalho apresentamos uma possível solução para a "brecha espectral", através de um código numérico que calcula a corrente gerada por ondas LH, usando a equação de Fokker-
Planck Quasilinear em duas dimensões, levando em conta detalhes da ressonância das partículas com as ondas longitudinais (LH) e sua distribuição espectral; Abstract: Current drive by lower hybrid wave LH, is the most promising technique to obtain continuos current for the controlled thermonuclear fusion. The existence of "Spectral gap" forbid satisfactory match between theoretical results and experimental measurements of the generated current. The theory has always predicted smaller values. In this Thesis we show a possible solution for the spectral gap, by a numerical code which calculate the generated current by LH waves, using the "Quasi1inear Fokker-
Planck" equation in two dimensions, taking in to account detai1s of ressonance between particles and the longitudinal LH waves and its spectral distribution
Advisors/Committee Members: Sakanaka, Paulo Hiroshi, 1938- (advisor), Azevedo, Carlos Augusto de (committee member), Assis, Altair de Souza (committee member), Busnardo Neto, José (committee member), Machida, Munemasa (committee member).
Subjects/Keywords: Fokker-Planck, Equação de;
Tokamaks
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Manager
APA (6th Edition):
Samogin, E. d. (1997). Brecha espectral na geração de corrente por onda híbrida inferior
. (Thesis). Universidade Estadual de Campinas. Retrieved from http://repositorio.unicamp.br/jspui/handle/REPOSIP/278556
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Samogin, Eunice d'Avila. “Brecha espectral na geração de corrente por onda híbrida inferior
.” 1997. Thesis, Universidade Estadual de Campinas. Accessed October 20, 2019.
http://repositorio.unicamp.br/jspui/handle/REPOSIP/278556.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Samogin, Eunice d'Avila. “Brecha espectral na geração de corrente por onda híbrida inferior
.” 1997. Web. 20 Oct 2019.
Vancouver:
Samogin Ed. Brecha espectral na geração de corrente por onda híbrida inferior
. [Internet] [Thesis]. Universidade Estadual de Campinas; 1997. [cited 2019 Oct 20].
Available from: http://repositorio.unicamp.br/jspui/handle/REPOSIP/278556.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Samogin Ed. Brecha espectral na geração de corrente por onda híbrida inferior
. [Thesis]. Universidade Estadual de Campinas; 1997. Available from: http://repositorio.unicamp.br/jspui/handle/REPOSIP/278556
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Universidade Estadual de Campinas
26.
Alarcon LLacctarimay, Cesar Juan, 1982-.
Modelagem da distribuição de matéria em um anel em presença de Shepherds, via equação de Fokker-Planck
.
Degree: 2012, Universidade Estadual de Campinas
URL: http://repositorio.unicamp.br/jspui/handle/REPOSIP/278457
► Resumo: Nesta tese pretendemos modelar a distribuição de matéria em um Anel estelar fino imerso no campo gravitacional de um e dois Satélites Shepherds (Satélites…
(more)
▼ Resumo: Nesta tese pretendemos modelar a distribuição de matéria em um Anel estelar fino imerso no campo gravitacional de um e dois Satélites Shepherds (Satélites Pastores) usando a equação de Fokker-
Planck. Em particular, estudamos a evolução de um anel fino ao redor de um monopolo central. Os coeficientes de difusão são aqui calculados e escritos em termos de um ¿potencial¿ semelhante aos usuais potencias de Rosenbluth. Neste caso, consideramos que as partículas campo obedecem uma distribuição Gaussiana. Resolvemos a equação de Fokker-
Planck 1-dimensional para a função de distribuição das partículas teste que conformam o anel usando o método das diferenças finitas (versão Euler implícita). Demonstramos que o anel é uma configuração estável para uma evolução de longo tempo, tanto na ausência como na presença de shepherds. Estudamos também a variação da densidade de massa do anel para diferentes configurações. Em todos os casos é observada uma variação máxima e negativa da densidade perto da localização do shepherd devido a efeitos dinâmicos; Abstract: In this thesis we intend to model the distribution of matter in a thin stellar ring immersed in the gravitational field of one and two shepherd satellites using the Fokker-
Planck equation. In particular, we study the evolution of a thin ring around a central monopole. The diffusion coefficients are calculated and written in terms of a ¿potential¿ similar to the usual Rosenbluth potentials. In this case, we consider that the particles follow a Gaussian distribution. We solve the 1-dimensional Fokker-
Planck equation for the ring particles distribution function using the finite difference method (implicit Euler version). We show that the ring is a stable configuration for long time evolutions in the absence or in the presence of shepherds. We also studied the change in the mass density of the ring for different configurations. In all of the cases, it is observed a maximum negative variation of the density near the location of the shepherd due to dynamical effects
Advisors/Committee Members: Ujevic Tonino, Maximiliano (advisor), Tonino, Maximiliano Ujevic (advisor), Ramos Caro, Javier Fernando (advisor), Chinellato, Carola Dobrigkeit, 1952- (advisor), Antonelli, Alex (committee member), Koning, Maurice de (committee member), Zanchin, Vilson Tonin (committee member), Lugones, German (committee member).
Subjects/Keywords: Planetas e satélites;
Anéis planetários;
Mecânica celeste;
Fokker-Planck, Equação de
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APA (6th Edition):
Alarcon LLacctarimay, Cesar Juan, 1. (2012). Modelagem da distribuição de matéria em um anel em presença de Shepherds, via equação de Fokker-Planck
. (Thesis). Universidade Estadual de Campinas. Retrieved from http://repositorio.unicamp.br/jspui/handle/REPOSIP/278457
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Alarcon LLacctarimay, Cesar Juan, 1982-. “Modelagem da distribuição de matéria em um anel em presença de Shepherds, via equação de Fokker-Planck
.” 2012. Thesis, Universidade Estadual de Campinas. Accessed October 20, 2019.
http://repositorio.unicamp.br/jspui/handle/REPOSIP/278457.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Alarcon LLacctarimay, Cesar Juan, 1982-. “Modelagem da distribuição de matéria em um anel em presença de Shepherds, via equação de Fokker-Planck
.” 2012. Web. 20 Oct 2019.
Vancouver:
Alarcon LLacctarimay, Cesar Juan 1. Modelagem da distribuição de matéria em um anel em presença de Shepherds, via equação de Fokker-Planck
. [Internet] [Thesis]. Universidade Estadual de Campinas; 2012. [cited 2019 Oct 20].
Available from: http://repositorio.unicamp.br/jspui/handle/REPOSIP/278457.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Alarcon LLacctarimay, Cesar Juan 1. Modelagem da distribuição de matéria em um anel em presença de Shepherds, via equação de Fokker-Planck
. [Thesis]. Universidade Estadual de Campinas; 2012. Available from: http://repositorio.unicamp.br/jspui/handle/REPOSIP/278457
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Universidade Estadual de Campinas
27.
Yamaki, Tania Patricia Simões.
Solução exata da equação de Kramers para uma partícula Browniana carregada sob ação de campos elétrico e magnético externos e aplicações à hidrotermodinâmica
.
Degree: 2010, Universidade Estadual de Campinas
URL: http://repositorio.unicamp.br/jspui/handle/REPOSIP/277085
► Resumo: Após apresentarmos uma revisão dos principais modelos teóricos para o movimento Browniano, consideramos em particular o caso de uma partícula Browniana carregada sob ação…
(more)
▼ Resumo: Após apresentarmos uma revisão dos principais modelos teóricos para o movimento Browniano, consideramos em particular o caso de uma partícula Browniana carregada sob ação de campos elétrico e magnético. A obtenção de uma solução analítica para este caso, resolvendo a equação de Kramers para a distribuição de probabilidades de uma partícula no espaço de fase, foi sugerida em 1943 por Chandrasekhar, mas até os anos noventa do século passado, o problema foi raramente considerado na literatura. Obtivemos a solução fundamental exata deste problema, e analisamos algumas aplicações. Consideramos uma classe particular de soluções, aquelas com perfil inicial Gaussiano (no espaço de fase), sendo a solução uma convolução de Gaussianas (a solução fundamental ou propagador, e o perfil inicial). Calculamos algumas grandezas hidrodinâmicas e termodinâmicas a partir da expressão exata para a distribuição de probabilidades de uma partícula Browniana, a saber, a densidade de partículas, as densidades de fluxo de partículas, de energia, de fluxo de energia, de entropia e também a temperatura efetiva do gás Browniano, que pode ser obtida a partir das densidades de partícula e energia cinética. Publicamos em 2005 a solução fundamental exata e algumas aplicações no regime assintótico.; Abstract: After presenting a sketch of the several theoretical approaches to the Brownian motion model, we consider a charged Brownian particle under electric and magnetic fields. A path to solve analitically Kramers equation, for the particle distribution probability in phase space, was suggested in 1943 by Chandrasekhar, nevertheless until the nineties of last century, this problem was rarely considered. We present the exact fundamental solution and analyze some applications. We consider a particular class of solutions, namely, with a gaussian initial profile (in phase space), thus the resulting solution is a convolution of gaussians (both the fundamental solution or propagator, and the initial profile). Then we compute some hydrodinamical and thermodynamical densities from the exact expression for the probability distribution of a Brownian particle, for example, particle density, matter ux density, energy density, energy ux density, entropy density, among others, and some derived quantities suchs as the effective temperature of the Brownian gas. In 2005 we published part of these results, namely the fundamental solution and some application on the asymptotic regime
Advisors/Committee Members: Monaco, Roberto Eugenio Lagos, 1952- (advisor), Clemente, Roberto Antonio, 1953-2011 (advisor), Laks, Bernardo (committee member), Roversi, José Antonio (committee member), Ponte, Mickel Abreu de (committee member), Yoshida, Makoto (committee member).
Subjects/Keywords: Movimentos brownianos;
Kramers, Equação de;
Fokker-Planck, Equação de;
Hidrotermodinâmica
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APA ·
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APA (6th Edition):
Yamaki, T. P. S. (2010). Solução exata da equação de Kramers para uma partícula Browniana carregada sob ação de campos elétrico e magnético externos e aplicações à hidrotermodinâmica
. (Thesis). Universidade Estadual de Campinas. Retrieved from http://repositorio.unicamp.br/jspui/handle/REPOSIP/277085
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Yamaki, Tania Patricia Simões. “Solução exata da equação de Kramers para uma partícula Browniana carregada sob ação de campos elétrico e magnético externos e aplicações à hidrotermodinâmica
.” 2010. Thesis, Universidade Estadual de Campinas. Accessed October 20, 2019.
http://repositorio.unicamp.br/jspui/handle/REPOSIP/277085.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Yamaki, Tania Patricia Simões. “Solução exata da equação de Kramers para uma partícula Browniana carregada sob ação de campos elétrico e magnético externos e aplicações à hidrotermodinâmica
.” 2010. Web. 20 Oct 2019.
Vancouver:
Yamaki TPS. Solução exata da equação de Kramers para uma partícula Browniana carregada sob ação de campos elétrico e magnético externos e aplicações à hidrotermodinâmica
. [Internet] [Thesis]. Universidade Estadual de Campinas; 2010. [cited 2019 Oct 20].
Available from: http://repositorio.unicamp.br/jspui/handle/REPOSIP/277085.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Yamaki TPS. Solução exata da equação de Kramers para uma partícula Browniana carregada sob ação de campos elétrico e magnético externos e aplicações à hidrotermodinâmica
. [Thesis]. Universidade Estadual de Campinas; 2010. Available from: http://repositorio.unicamp.br/jspui/handle/REPOSIP/277085
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Illinois – Urbana-Champaign
28.
Chikkerur, Vishal.
Model reduction of linear and nonlinear systems using balancing methods.
Degree: MS, 4048, 2010, University of Illinois – Urbana-Champaign
URL: http://hdl.handle.net/2142/16914
► This thesis presents a review of the existing body of knowledge pertaining to model reduction using balancing techniques. A simple linear system is studied in…
(more)
▼ This thesis presents a review of the existing body of knowledge pertaining to model reduction using balancing techniques. A simple linear system is studied in a noisy environment with noisy sensors and linear balancing techniques are performed. Following, a more complex system in that of a spring-mass system with nonlinear damping is studied using the analysis set forth by J.Scherpen [11] and A.Newman [8]. The connection between linear and nonlinear balancing techniques is established and possible existant methods that reduce the complexity of the analysis involved are presented. We consider nonlinear filtering theory in the context of 2-point Vortex motion with inroads made towards the prospect of data fusion in regards to the data provided by a number of Lagrangian tracers.
Advisors/Committee Members: Namachchivaya, N. Sri (advisor).
Subjects/Keywords: Nonlinear; Balancing; Systems; Vortices; Filtering; Particle; Fokker-Planck; Control; Noise
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APA ·
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APA (6th Edition):
Chikkerur, V. (2010). Model reduction of linear and nonlinear systems using balancing methods. (Thesis). University of Illinois – Urbana-Champaign. Retrieved from http://hdl.handle.net/2142/16914
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Chikkerur, Vishal. “Model reduction of linear and nonlinear systems using balancing methods.” 2010. Thesis, University of Illinois – Urbana-Champaign. Accessed October 20, 2019.
http://hdl.handle.net/2142/16914.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Chikkerur, Vishal. “Model reduction of linear and nonlinear systems using balancing methods.” 2010. Web. 20 Oct 2019.
Vancouver:
Chikkerur V. Model reduction of linear and nonlinear systems using balancing methods. [Internet] [Thesis]. University of Illinois – Urbana-Champaign; 2010. [cited 2019 Oct 20].
Available from: http://hdl.handle.net/2142/16914.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Chikkerur V. Model reduction of linear and nonlinear systems using balancing methods. [Thesis]. University of Illinois – Urbana-Champaign; 2010. Available from: http://hdl.handle.net/2142/16914
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
29.
ARAÚJO, Hugo de Andrade.
Transições de fase do modelo de Foraging e difusão anômala
.
Degree: 2013, Universidade Federal de Pernambuco
URL: http://repositorio.ufpe.br/handle/123456789/17100
► Nesta Dissertac¸ ˜ao estudamos a dinˆamica energ´etica das buscas aleat ´orias aplicadas ao problema de foraging, em que animais buscam por comida ou parceiros em…
(more)
▼ Nesta Dissertac¸ ˜ao estudamos a dinˆamica energ´etica das buscas aleat ´orias aplicadas ao
problema de foraging, em que animais buscam por comida ou parceiros em ambientes
escassos. Discutiremos, inicialmente, um modelo estat´ıstico de caminhadas aleat ´orias
utilizando as distribuic¸ ˜oes de L´evy para os tamanhos dos passos de busca, as quais tˆem
sido reportadas na literatura como estrat´egias de eficiˆencia ´otima para o problema. Em
seguida vamos incluir no modelo ganhos e perdas de energia na caminhada aleat ´ oria de
busca, e abordaremos a dinˆamica energ´etica do processo de busca unidimensional com
extremos absorventes. Vamos discutir a transic¸ ˜ao de fase que o buscador experimenta
de um estado ativo (“vivo”), t´ıpico de ambientes com abundˆancia de recursos, para um
estado est´atico absorvente (“morto”), onde a busca ´e encerrada pela falta de energia
oriunda do encontro de recursos. Obteremos os expoentes cr´ıticos relativos a essa
transic¸ ˜ao atrav´es de abordagens te ´ oricas, tais como o m´etodo de primeira passagem
para o estado de energia nula, e num´ericas, baseadas na hip´otese de escala. Mostraremos
a independˆencia destes expoentes com a forma funcional da func¸ ˜ao gasto de energia. Por
fim, faremos uma breve revis˜ao da literatura sobre a equac¸ ˜ao de Fokker-
Planck canˆonica
e tamb´em sobre as suas vers˜oes utilizando derivadas fracion´arias, numa prepararac¸ ˜ao
para uma futura abordagem, durante o programa de Doutorado, do problema da busca
aleat´oria envolvendo difus˜oes anˆomalas (por exemplo, superdifus˜ao) via equac¸ ˜oes
diferenciais.
Advisors/Committee Members: RAPOSO, Ernesto Carneiro Pessoa (advisor), http://lattes.cnpq.br/4321118621178584 (advisor).
Subjects/Keywords: Caminhadas Aleat´ orias;
Distribuic¸ ˜ao de L´evy;
Foraging;
Transic¸ ˜oes de fase;
Equac¸ ˜ao de Fokker-Planck;
Random Walks;
L´evy Distribution;
Foraging;
Phase Transition;
Fokker- Planck Equation
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❌
APA ·
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MLA ·
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Manager
APA (6th Edition):
ARAÚJO, H. d. A. (2013). Transições de fase do modelo de Foraging e difusão anômala
. (Thesis). Universidade Federal de Pernambuco. Retrieved from http://repositorio.ufpe.br/handle/123456789/17100
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
ARAÚJO, Hugo de Andrade. “Transições de fase do modelo de Foraging e difusão anômala
.” 2013. Thesis, Universidade Federal de Pernambuco. Accessed October 20, 2019.
http://repositorio.ufpe.br/handle/123456789/17100.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
ARAÚJO, Hugo de Andrade. “Transições de fase do modelo de Foraging e difusão anômala
.” 2013. Web. 20 Oct 2019.
Vancouver:
ARAÚJO HdA. Transições de fase do modelo de Foraging e difusão anômala
. [Internet] [Thesis]. Universidade Federal de Pernambuco; 2013. [cited 2019 Oct 20].
Available from: http://repositorio.ufpe.br/handle/123456789/17100.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
ARAÚJO HdA. Transições de fase do modelo de Foraging e difusão anômala
. [Thesis]. Universidade Federal de Pernambuco; 2013. Available from: http://repositorio.ufpe.br/handle/123456789/17100
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Université de Bordeaux I
30.
Mallet, Jessy.
Contribution à la modélisation et à la simulation numérique multi-échelle du transport cinétique électronique dans un plasma chaud : A couple problems of linear dynamics in Banach spaces.
Degree: Docteur es, Mathématiques appliquées et calcul scientifique, 2012, Université de Bordeaux I
URL: http://www.theses.fr/2012BOR14584
► En physique des plasmas, le transport des électrons peut être décrit d'un point de vue cinétique ou d'un point de vue hydrodynamique.En théorie cinétique, une…
(more)
▼ En physique des plasmas, le transport des électrons peut être décrit d'un point de vue cinétique ou d'un point de vue hydrodynamique.En théorie cinétique, une équation de Fokker-Planck couplée aux équations de Maxwell est utilisée habituellement pour décrire l'évolution des électrons dans un plasma collisionnel. Plus précisément la solution de l'équation cinétique est une fonction de distribution non négative f spécifiant la densité des particules en fonction de la vitesse des particules, le temps et la position dans l'espace. Afin d'approcher la solution de ce problème cinétique, de nombreuses méthodes de calcul ont été développées. Ici, une méthode déterministe est proposée dans une géométrie plane. Cette méthode est basée sur différents schémas numériques d'ordre élevé . Chaque schéma déterministe utilisé présente de nombreuses propriétés fondamentales telles que la conservation du flux de particules, la préservation de la positivité de la fonction de distribution et la conservation de l'énergie. Cependant, le coût de calcul cinétique pour cette méthode précise est trop élevé pour être utilisé dans la pratique, en particulier dans un espace multidimensionnel.Afin de réduire ce temps de calcul, le plasma peut être décrit par un modèle hydrodynamique. Toutefois, pour les nouvelles cibles à haute énergie, les effets cinétiques sont trop importants pour les négliger et remplacer le calcul cinétique par des modèles habituels d'Euler macroscopiques. C'est pourquoi une approche alternative est proposée en considérant une description intermédiaire entre le modèle fluide et le modèle cinétique. Pour décrire le transport des électrons, le nouveau modèle réduit cinétique M1 est basé sur une approche aux moments pour le système Maxwell-Fokker-Planck. Ce modèle aux moments utilise des intégrations de la fonction de distribution des électrons sur la direction de propagation et ne retient que l'énergie des particules comme variable cinétique. La variable de vitesse est écrite en coordonnées sphériques et le modèle est défini en considérant le système de moments par rapport à la variable angulaire. La fermeture du système de moments est obtenue sous l'hypothèse que la fonction de distribution est une fonction d'entropie minimale. Ce modèle satisfait les propriétés fondamentales telles que la conservation de la positivité de la fonction de distribution, les lois de conservation pour les opérateurs de collision et la dissipation d'entropie. En outre une discrétisation entropique avec la variable de vitesse est proposée sur le modèle semi-discret. De plus, le modèle M1 peut être généralisé au modèle MN en considérant N moments donnés. Le modèle aux N-moments obtenu préserve également les propriétés fondamentales telles que les lois de conservation et la dissipation de l'entropie. Le schéma semi-discret associé préserve les propriétés de conservation et de décroissance de l'entropie.
In plasma physics, the transport of electrons can be described from a kinetic point of view or from an hydrodynamical point of view.Classically in…
Advisors/Committee Members: Dubroca, Bruno (thesis director), Humières, Emmanuel d' (thesis director).
Subjects/Keywords: Minimisation entropique; Équation Fokker-Planck-Landau; Équations de Maxwell; Système aux moments; Schéma entropique; Entropy minimization; Landau-Fokker-Planck equation; Maxwell equations; Moments systems; Entropic scheme
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Record Details
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« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Mallet, J. (2012). Contribution à la modélisation et à la simulation numérique multi-échelle du transport cinétique électronique dans un plasma chaud : A couple problems of linear dynamics in Banach spaces. (Doctoral Dissertation). Université de Bordeaux I. Retrieved from http://www.theses.fr/2012BOR14584
Chicago Manual of Style (16th Edition):
Mallet, Jessy. “Contribution à la modélisation et à la simulation numérique multi-échelle du transport cinétique électronique dans un plasma chaud : A couple problems of linear dynamics in Banach spaces.” 2012. Doctoral Dissertation, Université de Bordeaux I. Accessed October 20, 2019.
http://www.theses.fr/2012BOR14584.
MLA Handbook (7th Edition):
Mallet, Jessy. “Contribution à la modélisation et à la simulation numérique multi-échelle du transport cinétique électronique dans un plasma chaud : A couple problems of linear dynamics in Banach spaces.” 2012. Web. 20 Oct 2019.
Vancouver:
Mallet J. Contribution à la modélisation et à la simulation numérique multi-échelle du transport cinétique électronique dans un plasma chaud : A couple problems of linear dynamics in Banach spaces. [Internet] [Doctoral dissertation]. Université de Bordeaux I; 2012. [cited 2019 Oct 20].
Available from: http://www.theses.fr/2012BOR14584.
Council of Science Editors:
Mallet J. Contribution à la modélisation et à la simulation numérique multi-échelle du transport cinétique électronique dans un plasma chaud : A couple problems of linear dynamics in Banach spaces. [Doctoral Dissertation]. Université de Bordeaux I; 2012. Available from: http://www.theses.fr/2012BOR14584
◁ [1] [2] [3] [4] [5] [6] ▶
. 
Open Access Theses and Dissertations