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Dissertations / Theses on the topic 'Matrice de Fisher'

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Published: 25 May 2024

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1

Nguyen, Thu Thuy. "Developpement de la matrice d'information de Fisher pour des modèles non linéaires à effets mixtes : application à la pharmacocinétique des antibiotiques et l'impact sur l'émergence de la résistance." Paris 7, 2013. http://www.theses.fr/2013PA077029.

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Les modèles non linéaires à effets mixtes (MNLEM) permettent d'analyser les données longitudinales, par exemple dans les études pharmacocinétique/pharmacodynamique, avec peu de prélèvements par patient. Une méthode pour planifier ces études est d'utiliser la matrice d'information de Fisher (MF) attendue, approximée par linéarisation. Nous avons étendu MF pour prendre en compte la variabilité intra-sujet et les covariables discrètes dans les essais en crossover. Ces développements ont été évalués par simulation, implémentés dans le logiciel PFIM, dédiée à l'évaluation et l'optimisation des prot
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2

Koroko, Abdoulaye. "Natural gradient-based optimization methods for deep neural networks." Electronic Thesis or Diss., université Paris-Saclay, 2023. http://www.theses.fr/2023UPASG068.

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La méthode du gradient stochastique est la technologie actuellement prédominante pour effectuer la phase d'entraînement des réseaux de neurones. Par rapport à une descente classique, le calcul du vrai gradient comme une moyenne sur les données est remplacé par un élément aléatoire de la somme. En présence de données massives, cette approximation audacieuse permet de diminuer le nombre d'évaluations de gradients élémentaires et d'alléger le coût de chaque itération. Le prix à payer est l'apparition d'oscillations et la lenteur de convergence souvent excessive en nombre d'itérations. L'objectif
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3

Roy, Prateep Kumar. "Analysis & design of control for distributed embedded systems under communication constraints." Phd thesis, Université Paris-Est, 2009. http://tel.archives-ouvertes.fr/tel-00534012.

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Les Systèmes de Contrôle Embarqués Distribués (SCED) utilisent les réseaux de communication dans les boucles de rétroaction. Étant donné que les systèmes SCED ont une puissance de batterie, une bande passante de communication et une puissance de calcul limitée, les débits des données ou des informations transmises sont bornées et ils peuvent affecter leur stabilité. Ceci nous amène à élargir le spectre de notre étude et y intégrer une étude sur la relation entre la théorie du contrôle d'un coté et celle de l'information de l'autre. La contrainte de débit de données induit la quantification des
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Roy, Prateep Kumar. "Analyse et conception de la commande des systèmes embarqués distribués sous des contraintes de communication." Phd thesis, Université Paris-Est, 2009. http://tel.archives-ouvertes.fr/tel-00532883.

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Les Systèmes de Contrôle Embarqués Distribués (SCED) utilisent les réseaux de communication dans les boucles de rétroaction. Étant donné que les systèmes SCED ont une puissance de batterie, une bande passante de communication et une puissance de calcul limitée, les débits des données ou des informations transmises sont bornées et ils peuvent affecter leur stabilité. Ceci nous amène à élargir le spectre de notre étude et y intégrer une étude sur la relation entre la théorie du contrôle d'un coté et celle de l'information de l'autre. La contrainte de débit de données induit la quantification des
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5

Ley, Christophe. "Univariate and multivariate symmetry: statistical inference and distributional aspects." Doctoral thesis, Universite Libre de Bruxelles, 2010. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/210029.

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This thesis deals with several statistical and probabilistic aspects of symmetry and asymmetry, both in a univariate and multivariate context, and is divided into three distinct parts.<p><p>The first part, composed of Chapters 1, 2 and 3 of the thesis, solves two conjectures associated with multivariate skew-symmetric distributions. Since the introduction in 1985 by Adelchi Azzalini of the most famous representative of that class of distributions, namely the skew-normal distribution, it is well-known that, in the vicinity of symmetry, the Fisher information matrix is singular and the profile l
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6

Zaïdi, Abdelhamid. "Séparation aveugle d'un mélange instantané de sources autorégressives gaussiennes par la méthode du maximum de vraissemblance exact." Université Joseph Fourier (Grenoble), 2000. http://www.theses.fr/2000GRE10233.

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Cette these est consacree a l'etude du probleme de la separation aveugle d'un melange instantane de sources gaussiennes autoregressives, sans bruit additif, par la methode du maximum de vraisemblance exact. La maximisation de la vraisemblance est decomposee, par relaxation, en deux sous-problemes d'optimisation, egalement traites par des techniques de relaxation. Le premier consiste en l'estimation de la matrice de separation a structure autoregressive des sources fixee. Le second est d'estimer cette structure lorsque la matrice de separation est fixee. Le premier probleme est equivalent a la
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7

Achanta, Hema Kumari. "Optimal sensing matrices." Diss., University of Iowa, 2014. https://ir.uiowa.edu/etd/1421.

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Location information is of extreme importance in every walk of life ranging from commercial applications such as location based advertising and location aware next generation communication networks such as the 5G networks to security based applications like threat localization and E-911 calling. In indoor and dense urban environments plagued by multipath effects there is usually a Non Line of Sight (NLOS) scenario preventing GPS based localization. Wireless localization using sensor networks provides a cost effective and accurate solution to the wireless source localization problem. Certain se
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8

Monaledi, R. L. "Character tables of some selected groups of extension type using Fischer-Clifford matrices." Thesis, University of the Western Cape, 2015. http://hdl.handle.net/11394/5026.

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>Magister Scientiae - MSc<br>The aim of this dissertation is to calculate character tables of group extensions. There are several well developed methods for calculating the character tables of some selected group extensions. The method we study in this dissertation, is a standard application of Clifford theory, made efficient by the use of Fischer-Clifford matrices, as introduced by Fischer. We consider only extensions Ḡ of the normal subgroup N by the subgroup G with the property that every irreducible character of N can be extended to an irreducible character of its inertia group in Ḡ , if N
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9

Benaych-Georges, Florent. "Matrices aléatoires et probabilités libres." Paris 6, 2005. http://www.theses.fr/2005PA066566.

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10

Porto, Julianna Pinele Santos 1990. "Geometria da informação : métrica de Fisher." [s.n.], 2013. http://repositorio.unicamp.br/jspui/handle/REPOSIP/307256.

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Orientador: João Eloir Strapasson<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Matemática Estatística e Computação Científica<br>Made available in DSpace on 2018-08-23T13:44:50Z (GMT). No. of bitstreams: 1 Porto_JuliannaPineleSantos_M.pdf: 2346170 bytes, checksum: 9f8b7284329ef1eb2f319c2e377b7a3c (MD5) Previous issue date: 2013<br>Resumo: A Geometria da Informação é uma área da matemática que utiliza ferramentas geométricas no estudo de modelos estatísticos. Em 1945, Rao introduziu uma métrica Riemanniana no espaço das distribuições de probabilidade usando a ma
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11

Fouodjio, René. "Dépendance et mesure de liaison entre les composantes d'un vecteur aléatoire basées sur la distance entre les matrices d'information de Fisher." Mémoire, Université de Sherbrooke, 2004. http://savoirs.usherbrooke.ca/handle/11143/4592.

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L'association positive entre les composantes d'un vecteur aléatoire exprime que les variables tendent à prendre toutes des grandes valeurs ou toutes des petites valeurs en même temps tandis qu'une association négative revèle qu'un sous vecteur tend à prendre des grandes valeurs alors que le sous-vecteur complémentaire tend à prendre des petites valeurs et inversement. En cas d'indépendance entre ces composantes, le fait de savoir que certaines des variables prennent des valeurs prédéterminées ne modifie pas la probabilité de variation des autres; on n'a donc pas plus d'information sur la varia
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Fouodjio, René. "Dépendance et mesure de liaison entre les composantes d'un vecteur aléatoire basées sur la distance entre les matrices d'information de Fisher." Sherbrooke : Université de Sherbrooke, 2004.

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13

Maltauro, Tamara Cantú. "Algoritmo genético aplicado à determinação da melhor configuração e do menor tamanho amostral na análise da variabilidade espacial de atributos químicos do solo." Universidade Estadual do Oeste do Paraná, 2018. http://tede.unioeste.br/handle/tede/3920.

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Submitted by Neusa Fagundes (neusa.fagundes@unioeste.br) on 2018-09-10T17:23:20Z No. of bitstreams: 2 Tamara_Maltauro2018.pdf: 3146012 bytes, checksum: 16eb0e2ba58be9d968ba732c806d14c1 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)<br>Made available in DSpace on 2018-09-10T17:23:20Z (GMT). No. of bitstreams: 2 Tamara_Maltauro2018.pdf: 3146012 bytes, checksum: 16eb0e2ba58be9d968ba732c806d14c1 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Previous issue date: 2018-02-21<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior -
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14

Prins, A. L. "Fischer-clifford matrices and character tables of inertia groups of maximal subgroups of finite simple groups of extension type." University of the Western Cape, 2011. http://hdl.handle.net/11394/5430.

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Philosophiae Doctor - PhD<br>The aim of this dissertation is to calculate character tables of group extensions. There are several well–developed methods for calculating the character tables of group extensions. In this dissertation we study the method developed by Bernd Fischer, the so–called Fischer–Clifford matrices method, which derives its fundamentals from the Clifford theory. We consider only extensions G of the normal subgroup K by the subgroup Q with the property that every irreducible character of K can be extended to an irreducible character of its inertia group in G, if K is abelian
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15

Larsson, William. "New approaches to moisture determination in complex matrices based on the Karl Fischer Reaction in methanolic and non-alcoholic media." Doctoral thesis, Umeå universitet, Kemi, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-1918.

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Vattenhaltsbestämning är av stor vikt i många sammanhang. T.ex. kan vattenhalten påverka utbytet av en kemisk syntes, eller ha negativ inverkan på hållbarheten av läkemedel och livsmedel. Standardmetoden för vattenhaltsbestämning är Karl Fischer-titrering, baserad på antingen volymetri eller coulometri. I den här avhandlingen presenteras nya infallsvinklar för bestämning av mycket låga halter vatten i komplexa provmatriser, som t.ex. tekniska oljor och substanser som interfererar med alkoholbaserade Karl Fischer-reagens. Vattnet avskiljs ofta från oljematrisen före titrering genom förångning.
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16

Florez, Guillermo Domingo Martinez. "Extensões do modelo -potência." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/45/45133/tde-07072011-154259/.

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Em analise de dados que apresentam certo grau de assimetria a suposicao que as observações seguem uma distribuição normal, pode resultar ser uma suposição irreal e a aplicação deste modelo pode ocultar características importantes do modelo verdadeiro. Este tipo de situação deu forca á aplicação de modelo assimétricos, destacando-se entre estes a família de distribuições skew-symmetric, desenvolvida por Azzalini (1985). Neste trabalho nos apresentamos uma segunda proposta para a anàlise de dados com presença importante de assimetria e/ou curtose, comparado com a distribuição normal. Nós apresen
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17

PIRAS, CRISTINA. "Metabolomic investigation of food matrices by ¹H NMR spectroscopy." Doctoral thesis, Università degli Studi di Cagliari, 2012. http://hdl.handle.net/11584/266182.

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The present Ph.D. work shows some applications on the NMR-based metabolomic approach in food science. The investigated food matrices are largely different, from a manufactured product that undergoes only physical treatments (bottarga), to a manufactured product where biochemical transformations take place (Fiore Sardo cheese), and, finally, a raw food (Argentina sphyraena). All of these food matrices were not chosen by chance, but they represent an important piece of economy of the island of Sardinia, or might be further valorized, gaining more importance in the near future. Indeed, bottarga a
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18

Randrianjanahary, Liantsoa Finaritra. "Cosmology with HI intensity mapping: effect of higher order corrections." University of the Western Cape, 2020. http://hdl.handle.net/11394/7248.

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Masters of Science<br>One of the main challenges of cosmology is to unveil the nature of dark energy and dark matter. They can be constrained with baryonic acoustic oscillations (BAO) and redshift space distortions, amongst others. Both have characteristic signatures in the dark matter power spectrum. Biased tracers of dark matter, such as neutral hydrogen, are used to quantify the underlying dark matter density field. It is generally assumed that on large scales the bias of the tracer is linear. However, there is a coupling between small and large scales of the biased tracer which give
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19

Strömberg, Eric. "Faster Optimal Design Calculations for Practical Applications." Thesis, Uppsala universitet, Institutionen för farmaceutisk biovetenskap, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-150802.

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PopED is a software developed by the Pharmacometrics Research Group at the Department of Pharmaceutical Biosiences, Uppsala University written mainly in MATLAB. It uses pharmacometric population models to describe the pharmacokinetics and pharmacodynamics of a drug and then estimates an optimal design of a trial for that drug. With optimization calculations in average taking a very long time, it was desirable to increase the calculation speed of the software by parallelizing the serial calculation script. The goal of this project was to investigate different methods of parallelization and impl
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20

Panas, Dagmara. "Model-based analysis of stability in networks of neurons." Thesis, University of Edinburgh, 2017. http://hdl.handle.net/1842/28883.

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Neurons, the building blocks of the brain, are an astonishingly capable type of cell. Collectively they can store, manipulate and retrieve biologically important information, allowing animals to learn and adapt to environmental changes. This universal adaptability is widely believed to be due to plasticity: the readiness of neurons to manipulate and adjust their intrinsic properties and strengths of connections to other cells. It is through such modifications that associations between neurons can be made, giving rise to memory representations; for example, linking a neuron responding to the sm
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21

Perez-Ramirez, Javier. "Relay Selection for Multiple Source Communications and Localization." International Foundation for Telemetering, 2013. http://hdl.handle.net/10150/579585.

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ITC/USA 2013 Conference Proceedings / The Forty-Ninth Annual International Telemetering Conference and Technical Exhibition / October 21-24, 2013 / Bally's Hotel & Convention Center, Las Vegas, NV<br>Relay selection for optimal communication as well as multiple source localization is studied. We consider the use of dual-role nodes that can work both as relays and also as anchors. The dual-role nodes and multiple sources are placed at fixed locations in a two-dimensional space. Each dual-role node estimates its distance to all the sources within its radius of action. Dual-role selection is then
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Perez-Ramirez, Javier. "An Opportunistic Relaying Scheme for Optimal Communications and Source Localization." International Foundation for Telemetering, 2012. http://hdl.handle.net/10150/581448.

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ITC/USA 2012 Conference Proceedings / The Forty-Eighth Annual International Telemetering Conference and Technical Exhibition / October 22-25, 2012 / Town and Country Resort & Convention Center, San Diego, California<br>The selection of relay nodes (RNs) for optimal communication and source location estimation is studied. The RNs are randomly placed at fixed and known locations over a geographical area. A mobile source senses and collects data at various locations over the area and transmits the data to a destination node with the help of the RNs. The destination node not only needs to collect
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Urbinati, Eduardo Criscuolo [UNESP]. "Ovulação de matrizes de pacu Piaractus mesopotamicus e o papel da prostaglandina F2α". Universidade Estadual Paulista (UNESP), 2012. http://hdl.handle.net/11449/86671.

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Made available in DSpace on 2014-06-11T19:22:22Z (GMT). No. of bitstreams: 0 Previous issue date: 2012-02-10Bitstream added on 2014-06-13T19:27:36Z : No. of bitstreams: 1 urbinati_ec_me_jabo.pdf: 438124 bytes, checksum: ec3f06e377e44a119086563d92e6f440 (MD5)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>Os relatos de produtores e pesquisadores sobre problemas na fase de ovulação do pacu Piaractus mesopotamicus durante a reprodução artificial nos conduziu a avaliar o uso da prostaglandina F2α. O estudo foi realizado em duas estações reprodutivas (2009/2010 e 2010/2
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Pereira, Mayara de Moura [UNESP]. "Altas concentrações de proteínas em dietas de matrizes de tilápia-do-Nilo e seus efeitos na atividade de enzimas digestivas durante o desenvolvimento inicial." Universidade Estadual Paulista (UNESP), 2015. http://hdl.handle.net/11449/143033.

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Made available in DSpace on 2016-08-12T18:48:53Z (GMT). No. of bitstreams: 0 Previous issue date: 2015-12-16. Added 1 bitstream(s) on 2016-08-12T18:51:12Z : No. of bitstreams: 1 000866510.pdf: 827590 bytes, checksum: fc70eac380732c705a4371c1c5a5773c (MD5)<br>Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)<br>O presente estudo avaliou a atividade enzimas gástrica (pepsina), intestinal (aminopeptidase e fosfatase alcalina) e pâncreas (tripsina, amilase, lipase, protease) no desenvolvimento embrionário e larval de tilápia do Nilo, Oreochromis niloticus obtido a partir de reproduto
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Pereira, Mayara de Moura. "Altas concentrações de proteínas em dietas de matrizes de tilápia-do-Nilo e seus efeitos na atividade de enzimas digestivas durante o desenvolvimento inicial /." Jaboticabal, 2015. http://hdl.handle.net/11449/143033.

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Orientador: Elizabeth Romagosa<br>Banca: Maria Célia Portella<br>Banca: Jaqueline Dalbello Biller-Takahashi<br>Resumo: O presente estudo avaliou a atividade enzimas gástrica (pepsina), intestinal (aminopeptidase e fosfatase alcalina) e pâncreas (tripsina, amilase, lipase, protease) no desenvolvimento embrionário e larval de tilápia do Nilo, Oreochromis niloticus obtido a partir de reprodutores alimentados com dietas contendo quatro níveis de proteína bruta. O experimento foi realizado no período de janeiro a junho/2014, utilizando 144 fêmeas e 48 machos (3: 1) distribuídas em 16 hapas (12 peix
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Urbinati, Eduardo Criscuolo. "Ovulação de matrizes de pacu Piaractus mesopotamicus e o papel da prostaglandina F2α /". Jaboticabal : [s.n.], 2012. http://hdl.handle.net/11449/86671.

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Orientador: Sérgio Ricardo Batlouni<br>Banca: Renata Guimarães Moreira<br>Banca: José Augusto Senhorini<br>Resumo: Os relatos de produtores e pesquisadores sobre problemas na fase de ovulação do pacu Piaractus mesopotamicus durante a reprodução artificial nos conduziu a avaliar o uso da prostaglandina F2α. O estudo foi realizado em duas estações reprodutivas (2009/2010 e 2010/2011), com dois experimentos na estação 2009/2010 (T1 e T2) um experimento na estação 2010/2011 (T3). Foi amostrado um total de 45 fêmeas. As fêmeas do grupo controle foram induzidas apenas com extrato bruto de hipófise d
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27

Salah, Aghiles. "Von Mises-Fisher based (co-)clustering for high-dimensional sparse data : application to text and collaborative filtering data." Thesis, Sorbonne Paris Cité, 2016. http://www.theses.fr/2016USPCB093/document.

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La classification automatique, qui consiste à regrouper des objets similaires au sein de groupes, également appelés classes ou clusters, est sans aucun doute l’une des méthodes d’apprentissage non-supervisé les plus utiles dans le contexte du Big Data. En effet, avec l’expansion des volumes de données disponibles, notamment sur le web, la classification ne cesse de gagner en importance dans le domaine de la science des données pour la réalisation de différentes tâches, telles que le résumé automatique, la réduction de dimension, la visualisation, la détection d’anomalies, l’accélération des mo
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POMA, GIULIA. "Evaluation of bioaccumulation processes of brominated flame retardants in biotic matrices." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2014. http://hdl.handle.net/10281/50902.

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The global reduction in the use of PBDEs and HBCD as flame retardants has opened the way for the introduction of “Novel” BFRs (NBFRs) in place of the banned formulations, indicating those BFRs that are new in the market or newly/recently observed in the environment in respect to PBDEs and HBCD. Consequently, consumption and production of these NBFRs will keep rising, and increasing environmental levels of these chemicals are expected in the near future. Important representatives of this group are decabromodiphenyl ethane (DBDPE), 1,2-bis(2,4,6-tribromophenoxy) ethane (BTBPE), hexabromobenzene
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Salah, Aghiles. "Von Mises-Fisher based (co-)clustering for high-dimensional sparse data : application to text and collaborative filtering data." Electronic Thesis or Diss., Sorbonne Paris Cité, 2016. https://wo.app.u-paris.fr/cgi-bin/WebObjects/TheseWeb.woa/wa/show?t=1858&f=11557.

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La classification automatique, qui consiste à regrouper des objets similaires au sein de groupes, également appelés classes ou clusters, est sans aucun doute l’une des méthodes d’apprentissage non-supervisé les plus utiles dans le contexte du Big Data. En effet, avec l’expansion des volumes de données disponibles, notamment sur le web, la classification ne cesse de gagner en importance dans le domaine de la science des données pour la réalisation de différentes tâches, telles que le résumé automatique, la réduction de dimension, la visualisation, la détection d’anomalies, l’accélération des mo
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Blahová, Eliška. "Stanovení vybraných "Musk" sloučenin v biotických vzorcích." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2008. http://www.nusl.cz/ntk/nusl-216382.

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Musk compounds (MUSK) or synthetic fragrances are organic substances commonly used as fragrant constituents of detergents, soaps, cosmetics, personal care products, industrial and in-house cleaning agents, industrial plasticizers, chewing tobacco and fresheners. The big attention is pushed ahead studying these compounds, their fate in different parts of ecosystems and studying their characteristics at present, because musks infiltrate many environmental components, particularly aquatic and marine ecosystems, through their large application and their ability to be perzistant. This diploma thesi
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bin, Ahmad Khairuddin Taufiq. "Characterization of objects by fitting the polarization tensor." Thesis, University of Manchester, 2016. https://www.research.manchester.ac.uk/portal/en/theses/characterization-of-objects-by-fitting-the-polarization-tensor(1ee0de67-fdd4-4fae-ba00-3f2e4f3987a8).html.

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This thesis focuses on some mathematical aspects and a few recent applications of the polarization tensor (PT). Here, the main concern of the study is to characterize objects presented in electrical or electromagnetic fields by only using the PT. This is possible since the PT contains significant information about the object such as shape, orientation and material properties. Two main applications are considered in the study and they are electrosensing fish and metal detection. In each application, we present a mathematical formulation of the PT and briefly discuss its properties. The PT in th
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Bastian, Michael R. "Neural Networks and the Natural Gradient." DigitalCommons@USU, 2010. https://digitalcommons.usu.edu/etd/539.

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Neural network training algorithms have always suffered from the problem of local minima. The advent of natural gradient algorithms promised to overcome this shortcoming by finding better local minima. However, they require additional training parameters and computational overhead. By using a new formulation for the natural gradient, an algorithm is described that uses less memory and processing time than previous algorithms with comparable performance.
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Strömberg, Eric. "Applied Adaptive Optimal Design and Novel Optimization Algorithms for Practical Use." Doctoral thesis, Uppsala universitet, Institutionen för farmaceutisk biovetenskap, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-308452.

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The costs of developing new pharmaceuticals have increased dramatically during the past decades. Contributing to these increased expenses are the increasingly extensive and more complex clinical trials required to generate sufficient evidence regarding the safety and efficacy of the drugs.  It is therefore of great importance to improve the effectiveness of the clinical phases by increasing the information gained throughout the process so the correct decision may be made as early as possible.   Optimal Design (OD) methodology using the Fisher Information Matrix (FIM) based on Nonlinear Mixed E
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Veloso, Ana C. A. "Optimização de estratégias de alimentação para identificação de parâmetros de um modelo de E. coli. utilização do modelo em monitorização e controlo." Doctoral thesis, Universidade do Minho, 2007. http://hdl.handle.net/10198/1049.

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Os principais objectivos desta tese são: o desenho óptimo de experiências para a identificação de coeficientes de rendimento de um modelo não estruturado de um processo de fermentação semicontínua de Escherichia coli; a verificação experimental das trajectórias de alimentação obtidas por simulação; o desenvolvimento de estratégias de monitorização avançada para a estimação em linha de variáveis de estado e parâmetros cinéticos; e por fim o desenvolvimento de uma lei de controlo adaptativo para controlar a taxa específica de crescimento, com base em estratégias de alimentação de substrato com v
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35

Sousa, Sília Maria de Negreiros. "Relação entre energia e proteína digestíveis para matrizes de tilápia do Nilo (Oreochromis niloticus)." Universidade Estadual do Oeste do Paraná, 2012. http://tede.unioeste.br:8080/tede/handle/tede/1651.

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Made available in DSpace on 2017-07-10T17:48:32Z (GMT). No. of bitstreams: 1 Silia_Maria_de_Negreiros_Sousa.PDF: 2393965 bytes, checksum: 2141d53619fac032628eddd0a98157dc (MD5) Previous issue date: 2012-02-24<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>The goal of this study was to evaluate the effects of different levels of digestible protein (DP) and energy (DE) over growth, breeding performance and offspring quality in females of Nile tilapia (Oreochromis niloticus). Nine food formulae were evaluated using a combination of three DP levels (28, 34 and 40%) and three
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36

Marina, Kalić. "Fizičko-hemijska i reološka karakterizacija mikrokapsula ribljeg ulja inkorporiranih u čokoladni matriks." Phd thesis, Univerzitet u Novom Sadu, Medicinski fakultet u Novom Sadu, 2020. https://www.cris.uns.ac.rs/record.jsf?recordId=114094&source=NDLTD&language=en.

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Omega-3 masne kiseline su uslovne za zdravlje ljudi i imaju značajne fiziolo&scaron;ke uloge. Dijetetski proizvodi na bazi omega-3 masnih kiselina predstavljaju značajan izvor omega-3 masnih kiselina. Riblje ulje je dobar izvor polinezasićenih masnih kiselina (PUFA). Dnevni unos omega-3 polinezasićenih masnih kiselina je u većini delova sveta ispod preporučenog, uglavnom usled nedovoljne zastupljenosti ribe u ishrani. Zbog toga se danas riblje ulje nalazi u obliku različitih dijetetskih proizvoda i ponuda ovih preparata na trži&scaron;tu je veoma &scaron;iroka. Problem sa unosom ribljeg ulja k
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Veloso, Ana C. A. "Optimização de estratégias de alimentação para identificação de parâmetros de um modelo de E. coli. utilização do modelo em monitorização e controlo." Doctoral thesis, Universidade do Minho, 2007. http://hdl.handle.net/1822/6289.

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Doutoramento em Engenharia Química e Biológica<br>Os principais objectivos desta tese são: o desenho óptimo de experiências para a identificação de coeficientes de rendimento de um modelo não estruturado de um processo de fermentação semicontínua de Escherichia coli; a verificação experimental das trajectórias de alimentação obtidas por simulação; o desenvolvimento de estratégias de monitorização avançada para a estimação em linha de variáveis de estado e parâmetros cinéticos; e por fim o desenvolvimento de uma lei de controlo adaptativo para controlar a taxa específica de crescimento, com b
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Figueiredo, Cléber da Costa. "Calibração linear assimétrica." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/45/45133/tde-08032013-141153/.

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A presente tese aborda aspectos teóricos e aplicados da estimação dos parâmetros do modelo de calibração linear com erros distribuídos conforme a distribuição normal-assimétrica (Azzalini, 1985) e t-normal-assimétrica (Gómez, Venegas e Bolfarine, 2007). Aplicando um modelo assimétrico, não é necessário transformar as variáveis a fim de obter erros simétricos. A estimação dos parâmetros e das variâncias dos estimadores do modelo de calibração foram estudadas através da visão freqüentista e bayesiana, desenvolvendo algoritmos tipo EM e amostradores de Gibbs, respectivamente. Um dos pontos releva
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Silva, Michel Aguena da. "Cosmologia usando aglomerados de galáxias no Dark Energy Survey." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/43/43134/tde-22102017-163407/.

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Aglomerados de galáxias são as maiores estruturas no Universo. Sua distribuição mapeia os halos de matéria escura formados nos potenciais profundos do campo de matéria escura. Consequentemente, a abundância de aglomerados é altamente sensível a expansão do Universo, assim como ao crescimento das perturbações de matéria escura, constituindo uma poderosa ferramenta para fins cosmológicos. Na era atual de grandes levantamentos observacionais que produzem uma quantidade gigantesca de dados, as propriedades estatísticas dos objetos observados (galáxias, aglomerados, supernovas, quasares, etc) podem
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Li, Zhonggai. "Objective Bayesian Analysis of Kullback-Liebler Divergence of two Multivariate Normal Distributions with Common Covariance Matrix and Star-shape Gaussian Graphical Model." Diss., Virginia Tech, 2008. http://hdl.handle.net/10919/28121.

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This dissertation consists of four independent but related parts, each in a Chapter. The first part is an introductory. It serves as the background introduction and offer preparations for later parts. The second part discusses two population multivariate normal distributions with common covariance matrix. The goal for this part is to derive objective/non-informative priors for the parameterizations and use these priors to build up constructive random posteriors of the Kullback-Liebler (KL) divergence of the two multivariate normal populations, which is proportional to the distance between the
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Votavová, Helena. "Statistická analýza výběrů ze zobecněného exponenciálního rozdělení." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231401.

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Diplomová práce se zabývá zobecněným exponenciálním rozdělením jako alternativou k Weibullovu a log-normálnímu rozdělení. Jsou popsány základní charakteristiky tohoto rozdělení a metody odhadu parametrů. Samostatná kapitola je věnována testům dobré shody. Druhá část práce se zabývá cenzorovanými výběry. Jsou uvedeny ukázkové příklady pro exponenciální rozdělení. Dále je studován případ cenzorování typu I zleva, který dosud nebyl publikován. Pro tento speciální případ jsou provedeny simulace s podrobným popisem vlastností a chování. Dále je pro toto rozdělení odvozen EM algoritmus a jeho efekti
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Trias, Cornellana Miquel. "Gravitational wave observation of compact binaries Detection, parameter estimation and template accuracy." Doctoral thesis, Universitat de les Illes Balears, 2011. http://hdl.handle.net/10803/37402.

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La tesi tracta, des del punt de vista de l’anàlisi de dades, la possibilitat de detecció directa d’ones gravitatòries emeses per sistemes binaris d’objectes compactes de massa similar: forats negres, estels de neutrons, nanes blanques. En els capítols introductoris, a) es dóna una descripció detallada i exhaustiva de com passar dels patrons d’ona teòrics a la senyal detectada; b) s’introdueixen les eines més emprades en l’anàlisi de dades d’ones gravitatòries, amb especial menció a la discussió sobre les amplituds efectiva i característica. A més, els resultats originals de la tesi seguei
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Moura, ?caro Kennedy Francelino. "Testes cosmol?gicos aplicados a modelos de energia escura." Universidade Federal do Rio Grande do Norte, 2016. http://repositorio.ufrn.br/handle/123456789/21086.

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Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2016-07-25T21:57:03Z No. of bitstreams: 1 IcaroKennedyFrancelinoMoura_DISSERT.pdf: 6308092 bytes, checksum: 65c9e0d99b3ea645902b37237e873ed1 (MD5)<br>Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2016-08-03T20:32:51Z (GMT) No. of bitstreams: 1 IcaroKennedyFrancelinoMoura_DISSERT.pdf: 6308092 bytes, checksum: 65c9e0d99b3ea645902b37237e873ed1 (MD5)<br>Made available in DSpace on 2016-08-03T20:32:51Z (GMT). No. of bitstreams: 1 IcaroKennedyFrancelinoMoura_DISSERT.pdf: 6308092 bytes, checks
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Karagiannis, Dionysios. "The bispectrum of Large Scale Structures: modelling, prediction and estimation." Doctoral thesis, Università degli studi di Padova, 2018. http://hdl.handle.net/11577/3427289.

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In this thesis we study the higher-order statistics of Large Scale Structures (LSS). In particular, we examine the potential of the bispectrum (Fourier transform of the three-point correlator) of galaxies for both probing the non-linear regime of structure growth and setting constraints on primordial non-Gaussianity. The starting step is to construct accurate models for the power spectrum (Fourier transform of the two-point correlator) and bispectrum of galaxies by using the predictions of perturbation methods. In addition, the recent developments on the relation between dark matter and gal
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45

Purutcuoglu, Vilda. "Unit Root Problems In Time Series Analysis." Master's thesis, METU, 2004. http://etd.lib.metu.edu.tr/upload/2/12604701/index.pdf.

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In time series models, autoregressive processes are one of the most popular stochastic processes, which are stationary under certain conditions. In this study we consider nonstationary autoregressive models of order one, which have iid random errors. One of the important nonstationary time series models is the unit root process in AR (1), which simply implies that a shock to the system has permanent effect through time. Therefore, testing unit root is a very important problem. However, under nonstationarity, any estimator of the autoregressive coefficient does not have a known exact distribut
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Escorihuela, Roca Sara. "Novel gas-separation membranes for intensified catalytic reactors." Doctoral thesis, Universitat Politècnica de València, 2019. http://hdl.handle.net/10251/121139.

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[ES] La presente tesis doctoral se centra en el desarrollo de nuevas membranas de separación de gases, así como su empleo in-situ en reactores catalíticos de membrana para la intensificación de procesos. Para este propósito, se han sintetizado varios materiales, como polímeros para la fabricación de membranas, catalizadores tanto para la metanación del CO2 como para la reacción de síntesis de Fischer-Tropsch, y diversas partículas inorgánicas nanométricas para su uso en membranas de matriz mixta. En lo referente a la fabricación de las membranas, la tesis aborda principalmente dos tipos: orgán
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Ghanawi, Joly Karim. "Direct and indirect ecological interactions between aquaculture activities and marine fish communities in Scotland." Thesis, University of Stirling, 2018. http://hdl.handle.net/1893/27258.

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Presence of coastal aquaculture activities in marine landscapes is growing. However, there is insufficient knowledge on the subsequent ecological interactions between these activities and marine fish communities. The overall aim of this thesis was to evaluate the direct and indirect ecological effects of aquaculture activities on marine fish communities in Scotland. A combination of empirical and modelling approaches was employed to collect evidence of how aquaculture activities affect marine fish communities at the individual, population and ecosystem levels around coastal sea cages. The two
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48

CAMPOS, Joelson da Cruz. "Modelos de regressão log-Birnbaum-Saunders generalizados para dados com censura intervalar." Universidade Federal de Campina Grande, 2011. http://dspace.sti.ufcg.edu.br:8080/jspui/handle/riufcg/1332.

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Submitted by Johnny Rodrigues (johnnyrodrigues@ufcg.edu.br) on 2018-08-02T21:04:42Z No. of bitstreams: 1 JOELSON DA CRUZ CAMPOS - DISSERTAÇÃO PPGMAT 2011..pdf: 1767673 bytes, checksum: bf8d4ae8ead7124a54cdc7b566c2a9ff (MD5)<br>Made available in DSpace on 2018-08-02T21:04:42Z (GMT). No. of bitstreams: 1 JOELSON DA CRUZ CAMPOS - DISSERTAÇÃO PPGMAT 2011..pdf: 1767673 bytes, checksum: bf8d4ae8ead7124a54cdc7b566c2a9ff (MD5) Previous issue date: 2011-12<br>Capes<br>Neste trabalho, propomos o modelo de regressão log-Birnbaum-Saunders generalizado para analisar dados com censura intervalar. As fun
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Хуень, Ву Хань. "Управління збутовою діяльністю підприємства". Thesis, Одеський національний економічний університет, 2021. http://local.lib/diploma/Vu.pdf.

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Доступ до роботи тільки на території бібліотеки ОНЕУ, для переходу натисніть на посилання нижче<br>У роботі розглядаються теоретичні аспекти управління збутовою діяльністю підприємства. Проаналізовано ринок риби України, практичні аспекти організації збутової діяльності ТОВ «Ніка» Запропоновано заходи з розвитку збутової діяльності ТОВ «Ніка», що полягають у відкритті роздрібної торгової точки.<br>The work considers the theoretical aspects of sales management of the enterprise. Measures for the development of sales activities of Nika LLC are proposed, which are to open a retail outlet.
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Čížek, Ondřej. "Makroekonometrický model měnové politiky." Doctoral thesis, Vysoká škola ekonomická v Praze, 2010. http://www.nusl.cz/ntk/nusl-165290.

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First of all, general principals of contemporary macroeconometric models are described in this dissertation together with a brief sketch of alternative approaches. Consequently, the macroeconomic model of a monetary policy is formulated in order to describe fundamental relationships between real and nominal economy. The model originated from a linear one by making some of the parameters endogenous. Despite this nonlinearity, I expressed my model in a state space form with time-varying coefficients, which can be solved by a standard Kalman filter. Using outcomes of this algorithm, likelihood fu
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