subject:(Planck)

Iowa State University

1. Maimaitiyiming, Wumaier. Positive and energy stable schemes for Poisson-Nernst-Planck equations and related models.

Degree: 2020, Iowa State University

URL: https://lib.dr.iastate.edu/etd/18177

► In this thesis, we design, analyze, and numerically validate positive and energy- dissipating schemes for solving Poisson-Nernst-Planck (PNP) equations and Fokker-Planck (FP) equations with interaction… (more)

▼ In this thesis, we design, analyze, and numerically validate positive and energy- dissipating schemes for solving Poisson-Nernst-Planck (PNP) equations and Fokker-Planck (FP) equations with interaction potentials. These equations play an important role in modeling the dynamics of charged particles in semiconductors and biological ion channels, as well as in other applications. These model equations are nonlinear/nonlocal gradient flows in density space, and their explicit solutions are rarely available; however, solutions to such problems feature intrinsic properties such as (i) solution positivity, (ii) mass conservation, and (iii) energy dissipation. These physically relevant properties are highly desirable to be preserved at the discrete level with the least time-step restrictions. We first construct our schemes for a reduced PNP model, then extend to multi-dimensional PNP equations and a class of FP equations with interaction potentials. The common strategies in the construction of the baseline schemes include two ingredients: (i) reformulation of each underlying model so that the resulting system is more suitable for constructing positive schemes, and (ii) integration of semi-implicit time discretization and central spatial discretization. For each model equation, we show that the semi-discrete schemes (continuous in time) preserve all three solution properties (positivity, mass conservation, and energy dissipation). The fully discrete first order schemes preserve solution positivity and mass conservation for arbitrary time steps. Moreover, there exists a discrete energy function which dissipates along time marching with an O(1) bound on time steps. We show that the second order (in both time and space) schemes preserve solution positivity for suitably small time steps; for larger time steps, we apply a local limiter to restore the solution positivity. We prove that such limiter preserves local mass and does not destroy the approximation accuracy. In addition, the limiter provides a reliable way of restoring solution positivity for other high order conservative finite difference or finite volume schemes. Both the first and second order schemes are linear and can be efficiently implemented without resorting to any iteration method. The second order schemes are only slight modifications of the first order schemes. Computational costs of a single time step for first and second order schemes are similar, hence our second-order in time schemes are efficient than the first-order in time schemes, given a larger time step could be utilized (to save computational cost). We conduct extensive numerical tests that support our theoretical results and illustrate the accuracy, efficiency, and capacity to preserve the solution properties of our schemes.

Subjects/Keywords: Fokker-Planck equations; Poisson-Nernst-Planck equations

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APA (6^th Edition):

Maimaitiyiming, W. (2020). Positive and energy stable schemes for Poisson-Nernst-Planck equations and related models. (Thesis). Iowa State University. Retrieved from https://lib.dr.iastate.edu/etd/18177

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Maimaitiyiming, Wumaier. “Positive and energy stable schemes for Poisson-Nernst-Planck equations and related models.” 2020. Thesis, Iowa State University. Accessed January 17, 2021. https://lib.dr.iastate.edu/etd/18177.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Maimaitiyiming, Wumaier. “Positive and energy stable schemes for Poisson-Nernst-Planck equations and related models.” 2020. Web. 17 Jan 2021.

Vancouver:

Maimaitiyiming W. Positive and energy stable schemes for Poisson-Nernst-Planck equations and related models. [Internet] [Thesis]. Iowa State University; 2020. [cited 2021 Jan 17]. Available from: https://lib.dr.iastate.edu/etd/18177.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Maimaitiyiming W. Positive and energy stable schemes for Poisson-Nernst-Planck equations and related models. [Thesis]. Iowa State University; 2020. Available from: https://lib.dr.iastate.edu/etd/18177

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)

Subjects/Keywords: Lei de Planck; Lei de Stefan-Boltzmann

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APA (6^th 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 (16^th Edition):

Antunes, Laura Catarina Seco. “Radiação de corpo negro: lei de Stefan-Boltzmann, lei do deslocamento de Wien.” 2012. Thesis, RCAAP. Accessed January 17, 2021. 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 (7^th Edition):

Antunes, Laura Catarina Seco. “Radiação de corpo negro: lei de Stefan-Boltzmann, lei do deslocamento de Wien.” 2012. Web. 17 Jan 2021.

Vancouver:

Antunes LCS. Radiação de corpo negro: lei de Stefan-Boltzmann, lei do deslocamento de Wien. [Internet] [Thesis]. RCAAP; 2012. [cited 2021 Jan 17]. 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 (6^th 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 (16^th 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 January 17, 2021. 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 (7^th Edition):

Rodrigues, Ana Maria Manso. “Determinação dos tempos de descongelação e das percentagens de água de vidragem de várias espécies de pescado.” 2014. Web. 17 Jan 2021.

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 2021 Jan 17]. 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

4. 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)

Subjects/Keywords: Fokker Planck; Stochastic

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APA (6^th 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 (16^th Edition):

Adesina, Owolabi Abiona. “Statistical Modelling and the Fokker-Planck Equation.” 2008. Thesis, , School of Engineering. Accessed January 17, 2021. 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 (7^th Edition):

Adesina, Owolabi Abiona. “Statistical Modelling and the Fokker-Planck Equation.” 2008. Web. 17 Jan 2021.

Vancouver:

Adesina OA. Statistical Modelling and the Fokker-Planck Equation. [Internet] [Thesis]. , School of Engineering; 2008. [cited 2021 Jan 17]. 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

Princeton University

5. 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)

Subjects/Keywords: CMB; Cosmology; HFI; Inflation; Planck; SPIDER

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th 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 (16^th Edition):

Gudmundsson, Jon Emil. “Probing Early Universe Cosmologies With SPIDER and Planck HFI .” 2014. Doctoral Dissertation, Princeton University. Accessed January 17, 2021. http://arks.princeton.edu/ark:/88435/dsp01j3860917r.

MLA Handbook (7^th Edition):

Gudmundsson, Jon Emil. “Probing Early Universe Cosmologies With SPIDER and Planck HFI .” 2014. Web. 17 Jan 2021.

Vancouver:

Gudmundsson JE. Probing Early Universe Cosmologies With SPIDER and Planck HFI . [Internet] [Doctoral dissertation]. Princeton University; 2014. [cited 2021 Jan 17]. 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

University of Sydney

6. 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)

Subjects/Keywords: Sunspot Number; Space Weather; Fokker-Planck Equation

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th 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 (16^th Edition):

Noble, Patrick. “Stochastic processes in Astrophysics .” 2013. Thesis, University of Sydney. Accessed January 17, 2021. 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 (7^th Edition):

Noble, Patrick. “Stochastic processes in Astrophysics .” 2013. Web. 17 Jan 2021.

Vancouver:

Noble P. Stochastic processes in Astrophysics . [Internet] [Thesis]. University of Sydney; 2013. [cited 2021 Jan 17]. 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

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)

Subjects/Keywords: ADC; Planck; HFI; Effets systématiques; Instrument; Bolomètre; CMB; ADC; Planck; HFI; Systematics; Bolometer; Instrument; CMB

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th 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 (16^th 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 January 17, 2021. http://www.theses.fr/2016TOU30362.

MLA Handbook (7^th 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. 17 Jan 2021.

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 2021 Jan 17]. 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. 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 (6^th 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 (16^th 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 January 17, 2021. http://www.theses.fr/2015CNAM1033.

MLA Handbook (7^th 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. 17 Jan 2021.

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 2021 Jan 17]. 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

9. 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, Université Paris-Saclay (ComUE)

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 · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th 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). Université Paris-Saclay (ComUE). Retrieved from http://www.theses.fr/2015SACLS194

Chicago Manual of Style (16^th 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, Université Paris-Saclay (ComUE). Accessed January 17, 2021. http://www.theses.fr/2015SACLS194.

MLA Handbook (7^th 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. 17 Jan 2021.

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]. Université Paris-Saclay (ComUE); 2015. [cited 2021 Jan 17]. 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]. Université Paris-Saclay (ComUE); 2015. Available from: http://www.theses.fr/2015SACLS194

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)

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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 Ã 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: JosÃ 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 · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th 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 (16^th Edition):

Silva, PetrÃcio Barrozo da. “Transporte de partÃculas em sistemas mesoscÃpicos.” 2009. Doctoral Dissertation, Universidade Federal do Ceará. Accessed January 17, 2021. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=2684 ;.

MLA Handbook (7^th Edition):

Silva, PetrÃcio Barrozo da. “Transporte de partÃculas em sistemas mesoscÃpicos.” 2009. Web. 17 Jan 2021.

Vancouver:

Silva PBd. Transporte de partÃculas em sistemas mesoscÃpicos. [Internet] [Doctoral dissertation]. Universidade Federal do Ceará 2009. [cited 2021 Jan 17]. 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)

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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 hÃ 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: AndrÃ 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 to Zotero / EndNote / Reference Manager

APA (6^th 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 (16^th Edition):

Silva, George Frederick Tavares da. “TermoestatÃstica do Movimento Superamortecido de PartÃculas Interagentes .” 2013. Doctoral Dissertation, Universidade Federal do Ceará. Accessed January 17, 2021. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=9127 ;.

MLA Handbook (7^th Edition):

Silva, George Frederick Tavares da. “TermoestatÃstica do Movimento Superamortecido de PartÃculas Interagentes .” 2013. Web. 17 Jan 2021.

Vancouver:

Silva GFTd. TermoestatÃstica do Movimento Superamortecido de PartÃculas Interagentes . [Internet] [Doctoral dissertation]. Universidade Federal do Ceará 2013. [cited 2021 Jan 17]. 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 ;

Universidade Estadual de Campinas

12. Alarcon LLacctarimay, Cesar Juan, 1982-. Modelagem da distribuição de matéria em um anel em presença de Shepherds, via equação de Fokker-Planck: Modeling the distribution of matter in a ring in the presence of sheperds, via Fokker-Planck equation.

Degree: 2012, Universidade Estadual de Campinas

URL: http://repositorio.unicamp.br/jspui/handle/REPOSIP/278457

► 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… (more)

Subjects/Keywords: Planetas e satélites; Anéis planetários; Mecânica celeste; Fokker-Planck, Equação de; Planets and satellites; Planetary rings; Celestial mechanics; Fokker-Planck equation

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Alarcon LLacctarimay, Cesar Juan, 1. (2012). Modelagem da distribuição de matéria em um anel em presença de Shepherds, via equação de Fokker-Planck: Modeling the distribution of matter in a ring in the presence of sheperds, via Fokker-Planck equation. (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 (16^th Edition):

Alarcon LLacctarimay, Cesar Juan, 1982-. “Modelagem da distribuição de matéria em um anel em presença de Shepherds, via equação de Fokker-Planck: Modeling the distribution of matter in a ring in the presence of sheperds, via Fokker-Planck equation.” 2012. Thesis, Universidade Estadual de Campinas. Accessed January 17, 2021. 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 (7^th Edition):

Alarcon LLacctarimay, Cesar Juan, 1982-. “Modelagem da distribuição de matéria em um anel em presença de Shepherds, via equação de Fokker-Planck: Modeling the distribution of matter in a ring in the presence of sheperds, via Fokker-Planck equation.” 2012. Web. 17 Jan 2021.

Vancouver:

Alarcon LLacctarimay, Cesar Juan 1. Modelagem da distribuição de matéria em um anel em presença de Shepherds, via equação de Fokker-Planck: Modeling the distribution of matter in a ring in the presence of sheperds, via Fokker-Planck equation. [Internet] [Thesis]. Universidade Estadual de Campinas; 2012. [cited 2021 Jan 17]. 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: Modeling the distribution of matter in a ring in the presence of sheperds, via Fokker-Planck equation. [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

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

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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)

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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 · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th 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 (16^th 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 January 17, 2021. http://www.theses.fr/2012GRENY079.

MLA Handbook (7^th 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. 17 Jan 2021.

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 2021 Jan 17]. 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

14. 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, Université Paris-Saclay (ComUE)

URL: http://www.theses.fr/2016SACLS192

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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)

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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 · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th 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). Université Paris-Saclay (ComUE). Retrieved from http://www.theses.fr/2016SACLS192

Chicago Manual of Style (16^th 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, Université Paris-Saclay (ComUE). Accessed January 17, 2021. http://www.theses.fr/2016SACLS192.

MLA Handbook (7^th 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. 17 Jan 2021.

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]. Université Paris-Saclay (ComUE); 2016. [cited 2021 Jan 17]. 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]. Université Paris-Saclay (ComUE); 2016. Available from: http://www.theses.fr/2016SACLS192

15. 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, Université Paris-Saclay (ComUE)

URL: http://www.theses.fr/2015SACLS004

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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)

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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 · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th 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). Université Paris-Saclay (ComUE). Retrieved from http://www.theses.fr/2015SACLS004

Chicago Manual of Style (16^th 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, Université Paris-Saclay (ComUE). Accessed January 17, 2021. http://www.theses.fr/2015SACLS004.

MLA Handbook (7^th 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. 17 Jan 2021.

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]. Université Paris-Saclay (ComUE); 2015. [cited 2021 Jan 17]. 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]. Université Paris-Saclay (ComUE); 2015. Available from: http://www.theses.fr/2015SACLS004

Université Paris-Sud – Paris XI

16. 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

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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)

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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 · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th 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 (16^th 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 January 17, 2021. http://www.theses.fr/2015PA112162.

MLA Handbook (7^th 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. 17 Jan 2021.

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 2021 Jan 17]. 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

17. 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

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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)

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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 (6^th 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 (16^th 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 January 17, 2021. http://www.theses.fr/2017PA066297.

MLA Handbook (7^th 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. 17 Jan 2021.

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 2021 Jan 17]. 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

18. 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 · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th 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 (16^th 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 January 17, 2021. 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 (7^th 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. 17 Jan 2021.

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 2021 Jan 17]. 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

Oregon State University

19. 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 · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th 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 (16^th Edition):

Larson, Richard Ross. “A photoelectric cell and allied equipment for student determination of Planck's constant.” 1949. Masters Thesis, Oregon State University. Accessed January 17, 2021. http://hdl.handle.net/1957/53047.

MLA Handbook (7^th Edition):

Larson, Richard Ross. “A photoelectric cell and allied equipment for student determination of Planck's constant.” 1949. Web. 17 Jan 2021.

Vancouver:

Larson RR. A photoelectric cell and allied equipment for student determination of Planck's constant. [Internet] [Masters thesis]. Oregon State University; 1949. [cited 2021 Jan 17]. 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

Universidade Estadual de Campinas

20. 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

► 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… (more)

Subjects/Keywords: Fokker-Planck, Equação de; Tokamaks

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th 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 (16^th Edition):

Samogin, Eunice d'Avila. “Brecha espectral na geração de corrente por onda híbrida inferior.” 1997. Thesis, Universidade Estadual de Campinas. Accessed January 17, 2021. 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 (7^th Edition):

Samogin, Eunice d'Avila. “Brecha espectral na geração de corrente por onda híbrida inferior.” 1997. Web. 17 Jan 2021.

Vancouver:

Samogin Ed. Brecha espectral na geração de corrente por onda híbrida inferior. [Internet] [Thesis]. Universidade Estadual de Campinas; 1997. [cited 2021 Jan 17]. 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 de Brasília

21. 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)

Subjects/Keywords: processos estocásticos; equação de difusão; Kramers-Moyal; Fokker-Planck; FISICA

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th 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 (16^th Edition):

Castro, Marcio Tavares de. “Equações de difusão associadas a séries temporais estocásticas : Kramers-Moyal versus Fokker-Planck.” 2009. Thesis, Universidade de Brasília. Accessed January 17, 2021. 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 (7^th Edition):

Castro, Marcio Tavares de. “Equações de difusão associadas a séries temporais estocásticas : Kramers-Moyal versus Fokker-Planck.” 2009. Web. 17 Jan 2021.

Vancouver:

Castro MTd. Equações de difusão associadas a séries temporais estocásticas : Kramers-Moyal versus Fokker-Planck. [Internet] [Thesis]. Universidade de Brasília; 2009. [cited 2021 Jan 17]. 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

Penn State University

22. Cheng, Wen. Approximate Solutions to Second Order Parabolic Equations with Applications to Option Pricing.

Degree: 2011, Penn State University

URL: https://submit-etda.libraries.psu.edu/catalog/12454

► In this thesis, we consider second order parabolic equations with coefficients that vary both in space and in time (non-autonomous). We derive closed-form approx- imations… (more)

Subjects/Keywords: Green function; Fokker Planck equation; parabolic equation; Option Pricing

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APA (6^th Edition):

Cheng, W. (2011). Approximate Solutions to Second Order Parabolic Equations with Applications to Option Pricing. (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/12454

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Cheng, Wen. “Approximate Solutions to Second Order Parabolic Equations with Applications to Option Pricing.” 2011. Thesis, Penn State University. Accessed January 17, 2021. https://submit-etda.libraries.psu.edu/catalog/12454.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Cheng, Wen. “Approximate Solutions to Second Order Parabolic Equations with Applications to Option Pricing.” 2011. Web. 17 Jan 2021.

Vancouver:

Cheng W. Approximate Solutions to Second Order Parabolic Equations with Applications to Option Pricing. [Internet] [Thesis]. Penn State University; 2011. [cited 2021 Jan 17]. Available from: https://submit-etda.libraries.psu.edu/catalog/12454.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Cheng W. Approximate Solutions to Second Order Parabolic Equations with Applications to Option Pricing. [Thesis]. Penn State University; 2011. Available from: https://submit-etda.libraries.psu.edu/catalog/12454

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Delaware

23. Zeng, Yun. Mathematical modeling and stochastic simulation of soft materials.

Degree: PhD, University of Delaware, Department of Mathematical Sciences, 2014, University of Delaware

URL: http://udspace.udel.edu/handle/19716/16840

► Soft materials are all around us; they may appear as consumer products, foods, or biological materials. The interest in studying the properties of soft materials… (more)

▼ Soft materials are all around us; they may appear as consumer products, foods, or biological materials. The interest in studying the properties of soft materials both experimentally and theoretically has steadily increased due to their wide range of industrial applications. One example of a soft material is wormlike micellar solutions. Depending on the temperature and composition, these solvent-surfactant-salt mixtures may exhibit close to mono-exponential or, alternatively, power-law or stretched-exponential stress decay. Of particular interest to this thesis is the development of stochastic models that can capture the stress relaxation behavior of such materials in the small strain limit, which is non-exponential in time as opposed to exponential. Continuous time random walk (CTRW) or subordinated Langevin processes are utilized to model systems exhibiting non-exponential relaxation behavior or anomalous diffusion. Stochastic simulations using the CTRW approach or the subordination method are carried out in this thesis for one-dimensional systems in which the probability density distribution of particle positions is described by a fractional Fokker-Planck equation (FFPE). The equivalence of the CTRW simulation and the subordination simulation with that of the FFPE is analyzed through the simulation of an ensemble of particle trajectories. The simulated particle dynamics suggest that CTRW processes or subordinated Langevin dynamics can be included in soft material mesoscale dynamics to capture the anomalous transport. To model the non-exponential stress relaxation dynamics of soft gel systems (three-dimensional fluids), stochastic models are simulated using transient network theory as developed and combined with the CTRW and subordinated Langevin processes. This approach enables us to connect the microstructural dynamics of certain soft gel-like materials with macroscale experimental observations by examining the material properties under homogeneous shear flow conditions. The study shows that transient network models combined with CTRW or subordination processes can successfully predict the non-exponential stress relaxation dynamics of soft materials. Future work should include the understanding of this class of models for other types of flows, e.g. inhomogeneous flows, as well as inclusion of the CTRW approach in a transient network model with the network topology tracked. Advisors/Committee Members: Cook, L. Pamela.

Subjects/Keywords: Colloids.; Stochastic models.; Random walks (Mathematics); Fokker-Planck equation.

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APA (6^th Edition):

Zeng, Y. (2014). Mathematical modeling and stochastic simulation of soft materials. (Doctoral Dissertation). University of Delaware. Retrieved from http://udspace.udel.edu/handle/19716/16840

Chicago Manual of Style (16^th Edition):

Zeng, Yun. “Mathematical modeling and stochastic simulation of soft materials.” 2014. Doctoral Dissertation, University of Delaware. Accessed January 17, 2021. http://udspace.udel.edu/handle/19716/16840.

MLA Handbook (7^th Edition):

Zeng, Yun. “Mathematical modeling and stochastic simulation of soft materials.” 2014. Web. 17 Jan 2021.

Vancouver:

Zeng Y. Mathematical modeling and stochastic simulation of soft materials. [Internet] [Doctoral dissertation]. University of Delaware; 2014. [cited 2021 Jan 17]. Available from: http://udspace.udel.edu/handle/19716/16840.

Council of Science Editors:

Zeng Y. Mathematical modeling and stochastic simulation of soft materials. [Doctoral Dissertation]. University of Delaware; 2014. Available from: http://udspace.udel.edu/handle/19716/16840

University of Colorado

24. Damrongwiriyanupap, Nattapong. Modeling the Penetration of Multi-Species Aggressive Chemicals into Concrete Structures.

Degree: PhD, 2010, University of Colorado

URL: https://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 · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Damrongwiriyanupap, N. (2010). Modeling the Penetration of Multi-Species Aggressive Chemicals into Concrete Structures. (Doctoral Dissertation). University of Colorado. Retrieved from https://scholar.colorado.edu/cven_gradetds/35

Chicago Manual of Style (16^th Edition):

Damrongwiriyanupap, Nattapong. “Modeling the Penetration of Multi-Species Aggressive Chemicals into Concrete Structures.” 2010. Doctoral Dissertation, University of Colorado. Accessed January 17, 2021. https://scholar.colorado.edu/cven_gradetds/35.

MLA Handbook (7^th Edition):

Damrongwiriyanupap, Nattapong. “Modeling the Penetration of Multi-Species Aggressive Chemicals into Concrete Structures.” 2010. Web. 17 Jan 2021.

Vancouver:

Damrongwiriyanupap N. Modeling the Penetration of Multi-Species Aggressive Chemicals into Concrete Structures. [Internet] [Doctoral dissertation]. University of Colorado; 2010. [cited 2021 Jan 17]. Available from: https://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: https://scholar.colorado.edu/cven_gradetds/35

25. 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 · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th 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 (16^th Edition):

Wilson, Daniel. “Quasi-Optical Modelling of Telescope Systems for Planck and STEAMR.” 2014. Thesis, RIAN. Accessed January 17, 2021. 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 (7^th Edition):

Wilson, Daniel. “Quasi-Optical Modelling of Telescope Systems for Planck and STEAMR.” 2014. Web. 17 Jan 2021.

Vancouver:

Wilson D. Quasi-Optical Modelling of Telescope Systems for Planck and STEAMR. [Internet] [Thesis]. RIAN; 2014. [cited 2021 Jan 17]. 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

Texas Tech University

26. Liu, Han. Escape time distribution for stochastic flows.

Degree: Mathematics and Statistics, 2011, Texas Tech University

URL: http://hdl.handle.net/2346/ETD-TTU-2011-08-1590

► The model is based on models developed at the Federal Reserve Board of Governors by Robert Martin, PhD. His models were used to model data… (more)

Subjects/Keywords: Poisson counter; Brownian motion; Stochastic differential equation; Fokker-planck equation

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Liu, H. (2011). Escape time distribution for stochastic flows. (Thesis). Texas Tech University. Retrieved from http://hdl.handle.net/2346/ETD-TTU-2011-08-1590

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Liu, Han. “Escape time distribution for stochastic flows.” 2011. Thesis, Texas Tech University. Accessed January 17, 2021. http://hdl.handle.net/2346/ETD-TTU-2011-08-1590.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Liu, Han. “Escape time distribution for stochastic flows.” 2011. Web. 17 Jan 2021.

Vancouver:

Liu H. Escape time distribution for stochastic flows. [Internet] [Thesis]. Texas Tech University; 2011. [cited 2021 Jan 17]. Available from: http://hdl.handle.net/2346/ETD-TTU-2011-08-1590.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Liu H. Escape time distribution for stochastic flows. [Thesis]. Texas Tech University; 2011. Available from: http://hdl.handle.net/2346/ETD-TTU-2011-08-1590

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

27. Wilson, Daniel. Quasi-Optical Modelling of Telescope Systems for Planck and STEAMR.

Degree: 2014, RIAN

URL: http://mural.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

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Wilson, D. (2014). Quasi-Optical Modelling of Telescope Systems for Planck and STEAMR. (Thesis). RIAN. Retrieved from http://mural.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 (16^th Edition):

Wilson, Daniel. “Quasi-Optical Modelling of Telescope Systems for Planck and STEAMR.” 2014. Thesis, RIAN. Accessed January 17, 2021. http://mural.maynoothuniversity.ie/5402/.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Wilson, Daniel. “Quasi-Optical Modelling of Telescope Systems for Planck and STEAMR.” 2014. Web. 17 Jan 2021.

Vancouver:

Wilson D. Quasi-Optical Modelling of Telescope Systems for Planck and STEAMR. [Internet] [Thesis]. RIAN; 2014. [cited 2021 Jan 17]. Available from: http://mural.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://mural.maynoothuniversity.ie/5402/

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Kansas

28. 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)

Subjects/Keywords: Mathematics; Applied mathematics; Degenerate; Dynamics; Fokker-Planck Equation; Stochastic Differential Equation

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th 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 (16^th Edition):

Li, Xi. “Dynamics of A Degenerate Fokker-Planck Equation and Its Application.” 2015. Doctoral Dissertation, University of Kansas. Accessed January 17, 2021. http://hdl.handle.net/1808/21706.

MLA Handbook (7^th Edition):

Li, Xi. “Dynamics of A Degenerate Fokker-Planck Equation and Its Application.” 2015. Web. 17 Jan 2021.

Vancouver:

Li X. Dynamics of A Degenerate Fokker-Planck Equation and Its Application. [Internet] [Doctoral dissertation]. University of Kansas; 2015. [cited 2021 Jan 17]. 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

Vanderbilt University

29. 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://hdl.handle.net/1803/12049

► 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)

Subjects/Keywords: supplementary cementitious materials; blended cement; SEM; Nernst-Planck; diffusion; reactive transport

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th 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://hdl.handle.net/1803/12049

Chicago Manual of Style (16^th 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 January 17, 2021. http://hdl.handle.net/1803/12049.

MLA Handbook (7^th Edition):

Arnold, Joshua Robert. “Reducing uncertainty in the characterization and modeling of reactive transport processes in blended cement mortar.” 2014. Web. 17 Jan 2021.

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 2021 Jan 17]. Available from: http://hdl.handle.net/1803/12049.

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://hdl.handle.net/1803/12049

Kansas State University

30. Islam, Md Atiqul. Cyanobacterial harmful algal bloom modeling in eutrophic water bodies.

Degree: MS, Department of Biological & Agricultural Engineering, 2020, Kansas State University

URL: http://hdl.handle.net/2097/40914

► Harmful algal bloom (or HAB) is a global phenomenon in the rising trend of environmental concerns that impacts public health and the economy through declining… (more)

▼ Harmful algal bloom (or HAB) is a global phenomenon in the rising trend of environmental concerns that impacts public health and the economy through declining water quality and toxicity. A rapid increase in cyanobacteria concentrations in water bodies is a primary cause of HABs. Enhanced eutrophication and warmer climate are considered vital driving factors for the proliferation of HAB events in the United States and worldwide. Dynamic modeling of cyanobacteria concentrations can help manage and reduce the impact of toxic blooms by better understanding the conditions for cyanobacteria growth and providing recommendations for early advisory warnings to the public for eutrophic water bodies in the agriculture dominated watersheds of the Midwest. In this study, sub-daily time series of cyanobacteria concentration and other environmental, physical-chemical variables were collected at the USGS sites in southcentral Kansas at Cheney Reservoir near the City of Wichita and in northeast Kansas at Kansas River near Wamego. Statistical analysis of the data revealed positive correlations between cyanobacteria concentration and water temperature, irradiation, phosphorus concentration, and storage volume. Correlation of dissolved oxygen depletion with cyanobacteria growth indicated an adverse impact of HABs on aquatic systems. A process-based mathematical framework for the kinetics of cyanobacteria growth was implemented at two sites considering bacteria natural growth, non-predatory loss, outflow washout, and accounting for the changes in water temperature (T), solar irradiance (I), and available nutrients (phosphorus [P] and nitrogen [N]). Four models were developed to facilitate examination of potential data limitation in sampling and continuous observations: (i) T-based, (ii) T, I-based, (iii) T, I, P- based, and (iv) complete four-factor model (T, I, P, N-based). The models were calibrated using continuous observations in 2013 - 2014 with time intervals from 2 days to 15 days (NSE = 0.41 to 0.71), and validated for 2018 (NSE = 0.56). Simulations revealed model efficiency in short-term (one day to bi-weekly) forecasting of cyanobacteria concentration for both nutrient-rich sites. The performance of TIP-based and TIPN-based models was found acceptable for long-term forecasting in the Cheney Reservoir. Data sampling at a 15-day interval was found adequate for the forecasting of cyanobacteria growth. A stochastic modeling approach was applied to the TIPN model that converted a kinetic growth model to a modified Fokker-Planck equation for the probability density function of the cyanobacteria concentration to account for variability in influent nutrient concentrations and their impact on HABs. Several single storm event scenarios were simulated to evaluate the impact of high nutrient runoff into the lake on cyanobacteria. Stochastic model simulations showed that mechanistic modeling forecasting uncertainty increased along time propagation and higher uncertainty in initial concentrations of the cyanobacteria. The process-based… Advisors/Committee Members: Aleksey Y. Sheshukov.

Subjects/Keywords: Cyanobacteria; Harmful Algal Blooms; Process-based model; Fokker-Planck equation

Record Details Similar Records Cite « Share

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Islam, M. A. (2020). Cyanobacterial harmful algal bloom modeling in eutrophic water bodies. (Masters Thesis). Kansas State University. Retrieved from http://hdl.handle.net/2097/40914

Chicago Manual of Style (16^th Edition):

Islam, Md Atiqul. “Cyanobacterial harmful algal bloom modeling in eutrophic water bodies.” 2020. Masters Thesis, Kansas State University. Accessed January 17, 2021. http://hdl.handle.net/2097/40914.

MLA Handbook (7^th Edition):

Islam, Md Atiqul. “Cyanobacterial harmful algal bloom modeling in eutrophic water bodies.” 2020. Web. 17 Jan 2021.

Vancouver:

Islam MA. Cyanobacterial harmful algal bloom modeling in eutrophic water bodies. [Internet] [Masters thesis]. Kansas State University; 2020. [cited 2021 Jan 17]. Available from: http://hdl.handle.net/2097/40914.

Council of Science Editors:

Islam MA. Cyanobacterial harmful algal bloom modeling in eutrophic water bodies. [Masters Thesis]. Kansas State University; 2020. Available from: http://hdl.handle.net/2097/40914

Open Access Theses and Dissertations