Dissertations / Theses on the topic 'Calcul naturel'
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Perrotin, Pacôme. "Simulation entre modèles de calcul naturel et modularité des réseaux d'automates." Electronic Thesis or Diss., Aix-Marseille, 2021. http://www.theses.fr/2021AIXM0011.
Full textWe explore different generalisations about natural computation models. The mosttheoretical is the notion of simulation between models, for which we describe a seriesof proposed definitions, by discussing the interests and the flaws of each of them. Wetake advantage of the most promising definitions to broaden the discussion on thepossible consequences of simulation in complexity theory, such as the constructionof new complexity classes by proposing the substitution of polynomial reduction bysimulation.Our more applied approach consists in the generalisation of automata networks bymeans of modules that have inputs. This formalism makes it possible to approach thequestions of the dynamics of interaction networks from a new angle : we explore itsusefulness as a modular tool capable of flexibly simulating many similar objects, aswell as the expressiveness of acyclic modules. These allow the characterisation of thedynamics of automata networks in the form of output functions. This expressivenessallows us to describe a process for optimising automata networks that reduces certainnetworks in size while retaining equivalent attractors
Dupont, Michel. "Une approche cognitive du calcul de le référence." Caen, 2003. http://www.theses.fr/2003CAEN2084.
Full textSilva-Julia, Rita da. "Un système hybride pour le traitement du langage naturel et pour la récupération de l'information." Toulouse 3, 1995. http://www.theses.fr/1995TOU30255.
Full textLagache, Marie. "La simulation de Monte-Carlo et l'industrie pétrolière : développement de potentiel pour les composés organomercurés : calcul de grandeurs thermodynamiques dérivées de gaz à condensat." Paris 11, 2003. http://www.theses.fr/2003PA112049.
Full textPrediction by molecular simulations is planned to be a serious complement to experimental measurements. Indeed, the study of equilibrium properties of molecular mixtures, such as hydrocarbons, by molecular simulation enables to model fluids of petroleum and gas relevance and to give data to the industry especially when the desired range of temperature and pressure is not easy to access by experimental processes and when toxic compounds are studied. The determination and the use of realistic and predictive numerical models for real systems remain today an unsolved problem. Besides the question of intermolecular interaction potential, the achieving of a good statistic on these systems containing a lot of degrees of freedom is very delicate. This research work is concentrated on three directions. The first part is devoted to the prediction of phase equilibrium properties, by Monte Carlo simulation, of toxic compounds that are present in some natural gases : the organomercury compounds. Its implementation go through the development of a realistic intermolecular force field in order to determine liquid vapour diagrams for mixtures. The second part consists in calculating second order derivatives of the thermodynamic potential and particularly the Joule-Thomson coefficient. To obtain these thermodynamic derivatives properties, a method based on statistical fluctuations of microscopic quantities have been developed. This method was applied to pure molecular fluids and natural gas and leads to good agreement with available experimental data. Finally, the last part of the work is devoted to the prediction of these properties near the critical point in order to reveal their critical divergence qualitatively and quantitatively
Maršík, Jiří. "Les effects et les handlers dans le langage naturel." Thesis, Université de Lorraine, 2016. http://www.theses.fr/2016LORR0322/document.
Full textIn formal semantics, researchers assign meanings to sentences of a natural language. This work is guided by the principle of compositionality: the meaning of an expression is a function of the meanings of its parts. These functions are often formalized using the [lambda]-calculus. However, there are areas of language which challenge the notion of compositionality, e.g. anaphoric pronouns or presupposition triggers. These force researchers to either abandon compositionality or adjust the structure of meanings. In the first case, meanings are derived by processes that no longer correspond to pure mathematical functions but rather to context-sensitive procedures, much like the functions of a programming language that manipulate their context with side effects. In the second case, when the structure of meanings is adjusted, the new meanings tend to be instances of the same mathematical structure, the monad. Monads themselves being widely used in functional programming to encode side effects, the common theme that emerges in both approaches is the introduction of side effects. Furthermore, different problems in semantics lead to different theories which are challenging to unite. Our thesis claims that by looking at these theories as theories of side effects, we can reuse results from programming language research to combine them.This thesis extends [lambda]-calculus with a monad of computations. The monad implements effects and handlers, a recent technique in the study of programming language side effects. In the first part of the thesis, we prove some of the fundamental properties of this calculus: subject reduction, confluence and termination. Then in the second part, we demonstrate how to use the calculus to implement treatments of several linguistic phenomena: deixis, quantification, conventional implicature, anaphora and presupposition. In the end, we build a grammar that features all of these phenomena and their interactions
Bennani, Amine. "Elaboration, comportement et durée de vie en fatigue du caoutchouc naturel renforcé de silice." Phd thesis, École Nationale Supérieure des Mines de Paris, 2006. http://tel.archives-ouvertes.fr/tel-00136825.
Full textCe qui leur confère de meilleures propriétés (résistance à la rupture, abrasion, rigidité...). Actuellement, les charges
renforçantes les plus souvent utilisées sont les noirs de carbone. La substitution de cette charge classique par la silice constitue un challenge dans l'industrie pneumatique. En effet, il est admis que la silice diminue la résistance au roulement des pneus, de matrice synthétique, tout en conservant une bonne adhérence. La particularité de cette étude est d'analyser l'influence du renfort par la silice sur le comportement mécanique en endurance du caoutchouc naturel. Son principal objectif est de comprendre l'influence de la morphologie de la silice (surface développée en interaction avec le caoutchouc, dispersibilité, activité chimique) sur le comportement
mécanique et plus spécialement sur la durée de vie en fatigue du caoutchouc naturel ainsi chargé. L'élaboration de deux matériaux permettant d'établir l'influence de la morphologie de la silice constitue une première étape déterminante du travail. Elle se base sur l'incorporation de deux nuances de silice précipitée dans une matrice de caoutchouc naturel pouvant présenter des propriétés rhéologiques similaires. Les essais de caractérisation mécanique (monotones et cycliques) selon différents types de sollicitation (traction, compression, relaxation, traction cyclique, torsion) ainsi que des essais de traction in situ au MEB permettent d'identifier les mécanismes de déformation, de renfort et d'endommagement présents. L'interprétation des résultats de cette campagne expérimentale est basée sur une caractérisation microstructurale approfondie de l'état de dispersion de la silice ainsi que celui de la cristallisation de la matrice en caoutchouc naturel.. Les résultats des essais de fatigue ainsi que les observations microscopiques des mécanismes de propagation des fissures en fatigue permettent d'établir un critère de durée de vie prenant en compte les modes de sollicitation (traction, compression, et torsion). Celui-ci est capable de prévoir la durée de vie ainsi que le lieu d'amorçage des fissures. Il s'avère que, selon le mode de sollicitation appliqué, les propriétés de dispersion de la silice sont plus ou moins importantes dans le renforcement et l'endurance du caoutchouc naturel chargé de silice.
Ce travail fait donc appel à la physico-chimie, à la mécanique et aux observations microstructurales, en allant de l'élaboration des matériaux jusqu'à la modélisation mécanique du comportement et de la durée de vie.
Fontoynont, Marc. "Prise en compte du rayonnement solaire dans l'eclairage naturel de locaux : methode et perspectives." Paris, ENMP, 1987. http://www.theses.fr/1987ENMP0022.
Full textCorvisier, Jérôme. "Implémentation des phénomènes de germination/mûrissement/croissance des phases solides secondaires dans un modèle de transport-réactif en milieu poreux géologique. Développement du code de calcul ARCHIMEDE." Phd thesis, Ecole Nationale Supérieure des Mines de Saint-Etienne, 2006. http://tel.archives-ouvertes.fr/tel-00102898.
Full textDans le code ARCHIMEDE (développé à l'E.N.S.M-S.E, Ecole Nationale Supérieure des Mines de Saint-Etienne, en collaboration avec l'I.F.P, Institut Français du Pétrole), seule la partie géochimie est concernée. Outre quelques difficultés qui empêchaient de traiter les variations de volume occasionnées par les réactions et que nous nous sommes efforcés de résoudre en reprenant l'ensemble du programme, l'objectif principal de ce travail de thèse a été la conception et l'implémentation d'un modèle de germination/mûrissement/croissance pour les minéraux secondaires.
Notre démarche a consisté à analyser précisément l'apparition de nouveaux minéraux dans des assemblages naturels d'où ils sont absents initialement. Quelques simulations numériques ont permis de montrer les limites inhérentes à la représentation, inadaptée, de la précipitation de ce genre de minéraux par croissance cristalline. La mise en avant de ces faiblesses a défini alors le cadre pour un nouveau modèle de précipitation propre aux minéraux secondaires. Une étude détaillée de la phase de germination, à savoir l'apparition des premiers cristaux d'un minéral, a conduit à la construction d'un modèle pour sa cinétique. Par suite, la mise en compétition du processus de germination avec celui de croissance, destiné à prendre plus tard le relais de la production de volume du nouveau solide, a nécessité la prise en charge de cristaux de tailles variées et le recours au mûrissement d'Ostwald, via un calcul parallèle. Il en a résulté un algorithme élaboré pour gérer, pour chaque minéral secondaire, la phase initiale de germination/mûrissement et ensuite le passage à la phase de croissance cristalline. La sensibilité de ce nouveau modèle complet de germination/mûrissement/croissance vis-à-vis des différents paramètres qui le composent a pu être analysée moyennant de nouvelles simulations numériques. Son comportement, en terme d'acuité des prédictions, a également pu être mis à l'épreuve et finalement jugé satisfaisant.
Venant, Fabienne. "Représentation et calcul dynamique du sens : exploration du lexique adjectival du français." Phd thesis, Ecole des Hautes Etudes en Sciences Sociales (EHESS), 2006. http://tel.archives-ouvertes.fr/tel-00067902.
Full textLebranchu, Julien. "Étude des phénomènes itératifs en langue : Inscription discursive et Calcul aspectuo-temporel, vers un traitement automatisé." Phd thesis, Université de Caen, 2011. http://tel.archives-ouvertes.fr/tel-00664788.
Full textLemoisson, Philippe. "Construction collaborative de théorie : vers une machine abstraite conversationnelle." Phd thesis, Université Montpellier II - Sciences et Techniques du Languedoc, 2006. http://tel.archives-ouvertes.fr/tel-00128516.
Full textUne série d'explorations touchant aux mécanismes biologiques sous-tendant la cognition, au rôle du langage en tant que vecteur de partage et de formalisation et au cycle global de construction de théorie, conduisent à un cahier des charges pour une ‘machine abstraite' qui compose des théories partielles au sein d'une conversation.
La machine abstraite ‘Austin' est ensuite spécifiée de façon détaillée ; elle est fondée sur l'utilisation de trois types d'actes de langage : assertions, questions et promesses. Des ‘schémas conversationnels normalisés' y concourent au traitement de l'information. De bonnes propriétés sont démontrées : terminaison en temps fini, confluence (le résultat final n'est pas affecté par l'indéterminisme du aux échanges concurrents lors de la conversation), complexité raisonnable, composition naturelle des programmes reconnus par cette machine abstraite, facilité d'analyse graphique pour ces programmes. Une grammaire générative inspirée des graphes conceptuels est proposée pour les énoncés. La ‘résolution collaborative de Sudoku' est développée comme illustration du calcul basée sur cette grammaire, puis programmée sur un prototype Java de la machine abstraite.
Par comparaison à la ‘programmation logique concurrente', puis aux ‘systèmes multi-experts à architecture blackboard', ‘Austin' apparaît être un compromis entre le ‘modèle déclaratif' et le ‘modèle impératif', combinant la contrôlabilité du premier avec l'expressivité du second.
Lefeuvre, Anais. "Sémantique des temps du français : une formalisation compositionnelle." Thesis, Bordeaux, 2014. http://www.theses.fr/2014BORD0065/document.
Full textThis work has been lead in the frame of the ITIPY project which goal was to automatically extract itineraries from travel novels from the XIX th century and from the beginning of the XX th. Our thesis work is close to the text understanding task in the information retrieval field and we aim at building a representation of meaning of linguistic utterances, leaning on the compositionnality principle. More precisely, the itinerary extraction supposes to temporally represent displacement and localization events or states (that we actually call eventualities) of a traveler as far as we understand it through discourse. Working on an automatic parser for syntax (in categorial grammars) and semantics (in λ-DRT), we focused on the building of an semantic lexicon for tense in French. We actually characterized our corpora as a sample of French language, by the means of a quantitative and qualitative analysis as well as a study of the internal structure of this genre. The main contribution of this work deals with tense and aspect semantic processing of the event expressed by tensed verbs, and with its modelling. In this respect, we propose an adaptation and an extension for French from XIX th century to nowadays of a lexicon originally produced to deal with English verbs. This formalisation is operational, for it is defined in λ-calculus which composition and réduction, already implemented, calculate automatically semantics représentations, high order logic formulas. Transition from a single event uterrance to a whole discourse which contains a complex referential network is discussed and allows us to define the limits of this hereby work
Defratyka, Sara. "Characterizing methane (CH4) emissions in urban environments (Paris)." Electronic Thesis or Diss., université Paris-Saclay, 2021. http://www.theses.fr/2021UPASJ002.
Full textThis Ph.D. aimed to measure methane (CH4) mixing ratio, its carbon isotope (δ13CH4) and ethane to methane ratio (C2H6:CH4) of diverse Île-de-France sources using CRDS G2201-i during near-source mobile measurements.Laboratory tests showed good performances of CRDS2201-i, notably a good agreement between δ13CH4 determined using CRDS G2201-i and IRMS. Indeed, precision of CRDS is less good than for IRMS, but it improves with larger CH4 mixing ratio (chapter 2). Possibilities and limitation of using CRDS G2201-i instrument to determine C2H6:CH4 ratio were also verified in laboratory and field conditions. Using CRDS G2201-i to measure C2H6:CH4 ratio is possible when enhancement is higher than 1 ppm above background and dried air is measured, which allows to use only one instrument to measure two proxies of CH4 sources (δ13CH4 and C2H6:CH4 ) (chapter 3).Then, the mobile set-up was adapted for mobile surveys in Paris city. There, three main CH4 sources where found: natural gas leaks, sewage network leaks and venting grid leaks ascribed to leaking furnaces installations. The latest category was discovered during walking measurements and was not described in previous studies. Compared to other cities, mostly surveyed in the U.S., Paris CH4 emissions are relatively small and comparable to cities with modern pipeline system. Comparison with inventories showed that for the energy sector, CH4 emissions are about fifteen times smaller than downscaled AIRPARIF inventories (chapter 4). Finally, at the industrial site scale, δ13CH4 and δDCH4 were determined and contributed to extend the database of isotopic signatures of European CH4 emissions. C2H6:CH4 observed from gas compressor stations are comparable with those in previous studies in other countries. For part of the sites, emission rates were also estimated using a Gaussian model or the tracer dispersion method (chapter 5).Results of this Ph.D. can be used as a base for future mobile, near-source campaigns in IDF region
Wrobel, Frédéric. "Elaboration d'une base de données des particules responsables des dysfonctionnements dans les composants électroniques exposés à des flux de protons ou de neutrons. Application au calcul des taux d'erreurs dans les mémoires sram en environnement radiatif naturel." Montpellier 2, 2002. http://www.theses.fr/2002MON20064.
Full textMaurer, Olivier. "Étude de la distribution des espèces soufrées et de la formation de l'hydrogène sulfuré dans les stockages de gaz naturel en aquifère." Phd thesis, Ecole Nationale des Ponts et Chaussées, 1992. http://pastel.archives-ouvertes.fr/pastel-00569430.
Full textRoyauté, Jean. "Les groupes nominaux complexes et leurs propriétés : application à l'analyse de l'informatique." Nancy 1, 1999. http://www.theses.fr/1999NAN10140.
Full textLeroy, César. "Oxalates de calcium et hydroxyapatite : des matériaux synthétiques et naturels étudiés par techniques RMN et DNP." Electronic Thesis or Diss., Paris 6, 2016. http://www.theses.fr/2016PA066256.
Full textIn France, about 9.8% of the population suffer from urolithiasis. The treatment of kidney stones, composed of 72% of hydrated calcium oxalates (CaC2O4∙nH2O) with n = 1, 2, 3, represents almost 900 million euros in annual spending and it is therefore necessary to understand the in vivo formation of these stones. Here we propose a new approach in order to characterize kidney stones and have a greater understanding of their formation. Physicians primarily use FTIR techniques to determine the major phases present in a given pathological calcification. NMR methods appears suitable to determine more accurately the composition of these pathological calcifications. Very few NMR analyzes of kidney stones and synthetic analogues were conducted to date. In a first step, the three phases of calcium oxalate were synthesized by implementing original protocols. Analysis of the 1H, 13C CP MAS and MAS 43Ca ultra-high magnetic field spectra at natural abundance allow precise identification of the different phases and can be interpreted by taking into account the number of inequivalent crystallographic sites. The hydroxyapatite was studied in parallel as it may also appear in urolithiase. Finally, we show results obtained from DNP MAS at 100 K on the synthetic samples. The affinity of the biradical/solvent combination remains a limiting factor for heterogeneous materials such as those analyzed in this study. We have to be able to find a suitable combination for complex multi-component materials and to obtain an equivalent gain on all signals. In a last step, it is demonstrated that it is possible to transpose the methodological approach presented above to the study of kidney stones
Leroy, César. "Oxalates de calcium et hydroxyapatite : des matériaux synthétiques et naturels étudiés par techniques RMN et DNP." Thesis, Paris 6, 2016. http://www.theses.fr/2016PA066256/document.
Full textIn France, about 9.8% of the population suffer from urolithiasis. The treatment of kidney stones, composed of 72% of hydrated calcium oxalates (CaC2O4∙nH2O) with n = 1, 2, 3, represents almost 900 million euros in annual spending and it is therefore necessary to understand the in vivo formation of these stones. Here we propose a new approach in order to characterize kidney stones and have a greater understanding of their formation. Physicians primarily use FTIR techniques to determine the major phases present in a given pathological calcification. NMR methods appears suitable to determine more accurately the composition of these pathological calcifications. Very few NMR analyzes of kidney stones and synthetic analogues were conducted to date. In a first step, the three phases of calcium oxalate were synthesized by implementing original protocols. Analysis of the 1H, 13C CP MAS and MAS 43Ca ultra-high magnetic field spectra at natural abundance allow precise identification of the different phases and can be interpreted by taking into account the number of inequivalent crystallographic sites. The hydroxyapatite was studied in parallel as it may also appear in urolithiase. Finally, we show results obtained from DNP MAS at 100 K on the synthetic samples. The affinity of the biradical/solvent combination remains a limiting factor for heterogeneous materials such as those analyzed in this study. We have to be able to find a suitable combination for complex multi-component materials and to obtain an equivalent gain on all signals. In a last step, it is demonstrated that it is possible to transpose the methodological approach presented above to the study of kidney stones
Bertot, Yves. "Une automatisation de calcul des residus en semantique naturelle." Nice, 1991. http://www.theses.fr/1991NICE4474.
Full textBonato, Roberto. "An Integrated Computational Approach to Binding Theory." Phd thesis, Université Sciences et Technologies - Bordeaux I, 2006. http://tel.archives-ouvertes.fr/tel-00418563.
Full textTisserand, Pierre-Jean. "Modélisation et calcul de ponts en maçonnerie assisée soumis aux aléas naturels." Thesis, université Paris-Saclay, 2020. http://www.theses.fr/2020UPAST064.
Full textThe railway network is composed of infrastructure components, in which masonry bridges are among the oldest and most numerous. These are aged and suffer from steadily increasing traffic and loadings. In addition, natural hazards, such as seismic hazards, represent important risk factors for rail transport and users.In order to build effective and coherent risk management policies, it is necessary to understand the behavior and degradation of running bond masonry bridges under natural hazards loadings.The modeling of masonry bridges first requires a material model to represent running bond masonry under complex cyclic loadings. It is based on orthotropic elastic relationships and a damage model decomposed on three orthogonal planes, coupled with internal sliding.Then a methodology and tools for modeling masonry bridges are presented. After, computation strategies for masonry bridges under different natural hazards loadings, overall under seismic ones, are determined. A first development shows the application of modal-based computation to determine the behavior and degradation of running bond masonry bridges under seismic loadings. A simple oscillator model is formulated in order to represent the behavior of a masonry bridge under modal loadings. A second development shows how other natural hazards loadings can be considered.Finally, the computation of fragility is explained, which illustrates potential engineering use
Helfgott, Michel, and Darrell Moore. "Introductory Calculus for the Natural Sciences." Digital Commons @ East Tennessee State University, 2013. http://amzn.com/1453880836.
Full texthttps://dc.etsu.edu/etsu_books/1059/thumbnail.jpg
Thévenon, Patrick. "Vers un assistant à la preuve en langue naturelle." Chambéry, 2006. http://www.theses.fr/2006CHAMS036.
Full textThis Thesis is the conclusion of three years of work in a project named DemoNat. The aim of this project is to design a system able to analyse and validate mathematical proofs written in a natural language. The general scheme of the system is the following : 1. Analysis of the proof by means of linguistics tools ; 2. Translation of the proof in a restricted language ; 3. Interpretation of the translated text in a deduction rules tree ; 4. Validation of the deduction rules with an automatic prover. This project envolved teams of linguists and logicians, the first two phases being the task of the linguists, and the lasts ones being the task of the logicians. This thesis presents in more details the project and develops mainly the following points: - Definition of the restricted language and its interpretation ; - proprerties of the principal type of terms of a typed λ-calculus with two arrows, part of a linguistic tool, the ACGs ; - Description of the automatic prover
Pompigne, Florent. "Modélisation logique de la langue et Grammaires Catégorielles Abstraites." Phd thesis, Université de Lorraine, 2013. http://tel.archives-ouvertes.fr/tel-00921040.
Full textAlves, Daniel Durante Pereira 1968. "Normalização forte via ordinal natural." [s.n.], 1999. http://repositorio.unicamp.br/jspui/handle/REPOSIP/280389.
Full textTese (doutorado) - Universidade Estadual de Campinas, Instituto de Filosofia e Ciencias Humanas
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Resumo: Não informado
Abstract: Not informed.
Doutorado
Doutor em Filosofia
Walsh, Pamela Judith. "Natural calcium phosphate ceramics for tissue engineering application." Thesis, Queen's University Belfast, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.486236.
Full textMoura, José Eduardo de Almeida. "Um estudo de C omega em calculo de sequentes e dedução natural." [s.n.], 2001. http://repositorio.unicamp.br/jspui/handle/REPOSIP/280385.
Full textTese (doutorado) - Universidade Estadual de Campinas,Instituto de Filosofia e Ciencias Humanas
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Resumo: A partir dos trabalhos de Raggio, datados de 1968 e 1978, sobre os sistemas Cn1
Abstract: Following Raggio's 1968 and 1978 papers on Cn1
Doutorado
Doutor em Filosofia
Souza, Roberta Vieira Gonçalves de. "Iluminação natural em edificações : calculo de iluminancias internas-desenvolvimento de ferramenta simplificada." reponame:Repositório Institucional da UFSC, 1997. http://repositorio.ufsc.br/xmlui/handle/123456789/77268.
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O trabalho tem como escopo a definição de uma metodologia para determinação de iluminâncias em plano horizontal no ambiente construído sob condições de céu encoberto e céu claro para diversas alturas solares através de procedimento gráfico simplificado. Propõe-se a implementação de um método gráfico para utilização em avaliações iniciais da quantidade de luz que se obtém por determinada abertura - para verificação e comparação de sistemas de iluminação natural ou para verificação da qualidade e eficiência do projeto de iluminação em códigos de obra.
Daudon, Vincent. "Construction d'un concept de temps mathématiquement manipulable en philosophie naturelle." Thesis, Sorbonne Paris Cité, 2017. http://www.theses.fr/2017USPCC241/document.
Full textBy looking for the law of centripetal force registered in the Mathematical Principles of the Natural Philosophy, Newton gave to time a status of privileged magnitude of natural philosophy. However, this one appears in a ambiguous way, sometimes discrete magnitude, sometimes continuous magnitude. Its mathematical manipulation, which rests essentially on the Method of first and last ratios and on the law of areas, lets appear a time of geometrical nature. Confronted, in the proposal x of the book II, with the resolution of the movement of a mobile which tests a resistance which is proportional in the square of its speed, Newton does not succeed in solving this proposal by means of the geometry. It is forced to resume its reasoning and to resort to an algebraic method in order to express in a just way the solution of this proposal, in which the time appears then under an algébraic shape, represented by a letter. So, from a geometrical time, represented by an element of space in the edition of 1687, Newton made an entity per se represented by a letter in proposal x of the 1713 edition. But it is to Varignon, who approached the proposals of the Principia by means of the differential calculus, that we owe the end of the "mathematization" and the finalization of the concept of mathematical time
LUSTOSA, CECILIA REIS ENGLANDER. "ON SOME RELATIONS BETWEEN NATURAL DEDUCTION AND SEQUENT CALCULUS." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2014. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=24302@1.
Full textCONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO
Segerberg apresentou uma prova geral da completude para lógicas proposicionais. Para tal, um sistema de dedução foi definido de forma que suas regras sejam regras para um operador booleano arbitrário para uma dada lógica proposicional. Cada regra desse sistema corresponde a uma linha na tabela de verdade desse operador. Na primeira parte desse trabalho, mostramos uma extensão da ideia de Segerberg para lógicas proposicionais finito-valoradas e para lógicas não-determinísticas. Mantemos a ideia de definir um sistema de dedução cujas regras correspondam a linhas de tabelas verdade, mas ao invés de termos um tipo de regra para cada valor de verdade da lógica correspondente, usamos uma representação bivalente que usa a técnica de fórmulas separadoras definidas por Carlos Caleiro e João Marcos. O sistema definido possui tantas regras que pode ser difícil trabalhar com elas. Acreditamos que um sistema de cálculo de sequentes definido de forma análoga poderia ser mais intuitivo. Motivados por essa observação, a segunda parte dessa tese é dedicada à definição de uma tradução entre cálculo de sequentes e dedução natural, onde procuramos definir uma bijeção melhor do que as já existentes.
Segerberg presented a general completeness proof for propositional logics. For this purpose, a Natural Deduction system was defined in a way that its rules were rules for an arbitrary boolean operator in a given propositional logic. Each of those rules corresponds to a row on the operator s truth-table. In the first part of this thesis we extend Segerbergs idea to finite-valued propositional logic and to non-deterministic logic. We maintain the idea of defining a deductive system whose rules correspond to rows of truth-tables, but instead of having n types of rules (one for each truth-value), we use a bivalent representation that makes use of the technique of separating formulas as defined by Carlos Caleiro and João Marcos. The system defined has so many rules it might be laborious to work with it. We believe that a sequent calculus system defined in a similar way would be more intuitive. Motivated by this observation, in the second part of this thesis we work out translations between Sequent Calculus and Natural Deduction, searching for a better bijective relationship than those already existing.
Cauvin, Maxime Verdel Thierry. "Prise en compte des incertitudes et calcul de probabilité dans les études de risques liés au sol et au sous-sol." S. l. : INPL, 2007. http://www.scd.inpl-nancy.fr/theses/2007_CAUVIN_M.pdf.
Full textMo, Jialin. "Soil Amended with Calcium-Magnesium Immobilizing Agent against Natural Arsenic Contamination." Kyoto University, 2019. http://hdl.handle.net/2433/242786.
Full textAit, Kettout Ahcéne. "Influence de la nature des sulfates de calcium sur l'hydratation d'un ciment en présence d'adjuvants." Toulouse 3, 1989. http://www.theses.fr/1989TOU30232.
Full textBarrios, Piña Héctor Alfonso. "Développement d'un code de calcul non Boussinesq dédié aux écoulements de gaz chauffé de convection naturelle." Aix-Marseille 3, 2010. http://www.theses.fr/2010AIX30015.
Full textNumerical analyses of heated gas flows, particularly at low speeds, are often performed with the aid of simplifying assumptions. These restrictive assumptions represent the flow of a gas somewhat truncated in its real state and are not easy to validate. Therefore, the main objective of this work is to develop a numerical tool to validate the commonly used approximations. For this reason, a numerical code for variable-density flows is fully developed to study heated gases in natural, forced or mixed convection, in both laminar and transitional flow regimes. The dynamic and energy conservation equations are solved without simplifying assumptions (such as the Boussinesq approximation and the low Mach number approximation), in a non-radiative field and with negligible viscous dissipation. The ideal gas law is used as state law. The coupled set of equations is solved with an iterative predictor-corrector algorithm, which uses a second-order finite difference formulation for the spatial discretization, and the Crank-Nicolson method for the time discretization. The numerical method is validated using analytical solutions as well as the differentially heated cavity problem. Three flows of increasing numerical and physical complexity are then investigated. These flows physically progress from a confined flow (differentially heated closed cavity), then a semi-confined flow (backward facing step) to an open flow (a free-plane jet)
Huachin, Albujar Jacksey Américo. "Calculo y selección de instalaciones mecánicas de un establecimiento de venta de gas natural vehicular." Bachelor's thesis, Universidad Nacional Mayor de San Marcos, 2016. https://hdl.handle.net/20.500.12672/12774.
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Jackson, Marilyn E. "Relating creation spirituality to Lutheranism : viewed from the perspective of education for social change : this dissertation is submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy to the faculty and board of the Western Institute for Social Research (WISR), Berkeley, California /." Electronic access available at, 2004. http://www.peacehost.net/EPI-Calc/Marilyn/.
Full textCermeño, Rodríguez Miguel Ángel. "Procedimientos para calcular la capacidad de producción de pozos de gas natural." Universidad Nacional de Ingeniería. Programa Cybertesis PERÚ, 2005. http://cybertesis.uni.edu.pe/uni/2005/cermeno_rm/html/index-frames.html.
Full textCruz, Carlos Eduardo Braga. "Calcium anacardate as anacardic source in the feed of broilers." Universidade Federal do CearÃ, 2015. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=16333.
Full textA pesquisa foi desenvolvida com o objetivo de avaliar os efeitos da adiÃÃo do anacardato de cÃlcio (ACC), como fonte de Ãcido anacÃrdico na raÃÃo de frangos de corte sobre o desempenho, as caracterÃsticas de carcaÃa, qualidade e a estabilidade lipÃdica da carne, parÃmetros sanguÃneos, atividade enzimÃtica e peroxidaÃÃo lipÃdica do fÃgado e no crescimento, composiÃÃo e qualidade dos ossos. Para isso, 840 pintos machos de um dia da linhagem Ag Ross 308 foram distribuÃdos ao acaso em seis tratamentos, com sete repetiÃÃes de vinte aves. Os tratamentos consistiram em: raÃÃo sem promotor de crescimento (PC); raÃÃo com PC e, os demais, raÃÃes sem o PC e adiÃÃo de ACC nos nÃveis de 0,25; 0,50; 0,75 e 1%. A adiÃÃo de ACC na raÃÃo nÃo influenciou nos parÃmetros bioquÃmicos do sangue (Ãcido Ãrico, creatinina, alanina aminotransferase, aspartato aminotransferase, colesterol total, HDL, LDL e triglicerÃdeos), na atividade enzimÃtica (superÃxido dismutase, grupos sulfidrÃlicos nÃo-protÃicos) e peroxidaÃÃo dos lipÃdeos do fÃgado, no crescimento e qualidade Ãssea (peso, comprimento, diÃmetro, Ãndice de Seedor, resistÃncia, deformidade, matÃria seca e matÃria mineral), nas caracterÃsticas de carcaÃa (% de carcaÃa, peito e coxa+sobrecoxa) e na qualidade da carne ( L*, a*, b*, pH, perda de Ãgua por cocÃÃo e capacidade de retenÃÃo de Ãgua). No entanto, a adiÃÃo a partir de 0,75% de ACC reduziu o ganho de peso e prejudicou a conversÃo alimentar dos frangos atà 21 dias de idade, porÃm, a adiÃÃo de atà 1% nÃo afetou o desempenho quando se considerou o perÃodo total de criaÃÃo (1 a 42 dias de idade). Para os valores de TBARS da carne, os nÃveis de 0,75% e 1% proporcionaram os menores valores, enquanto, o tratamento sem promotor de crescimento proporcionou maior valor. O ACC pode ser adicionado na raÃÃo dos frangos de corte atà o nÃvel de 1%, sem que ocorram alteraÃÃes nos parÃmetros sanguÃneos, enzimÃticos do fÃgado, no desempenho ao final do perÃodo de criaÃÃo (42 dias de idade), nas caracterÃsticas de carcaÃa e no crescimento, composiÃÃo e qualidade dos ossos. Contudo, a qualidade da carne pode melhorar com a reduÃÃo da oxidaÃÃo lipÃdica a partir de 0,75%.
The research aims to evaluate the effects of adding calcium anacardic (CAC) as a source of anacardic acid in the feed of broiler about the performance, carcass characteristics, quality and lipid stability meat, blood parameters, enzyme activity and lipid peroxidation liver and growth, composition and quality of the bones. For this, 840 male chicks with a day Ross 308 line were randomly assigned to six treatments, with seven replicates of twenty birds. The treatments consisted of: diet without growth promoter (PC); diet with PC and the others without PC and adding CAC levels of 0.25; 0.50; 0.75 to 1%. The addition of CAC in the feed didnât affect the biochemical blood parameters (uric acid, creatinine, alanine aminotransferase, aspartate aminotransferase, total cholesterol, HDL, LDL and triglycerides) in the enzyme activity (superoxide dismutase, non-protein sulfhydryl groups) and peroxidation of liver lipids, growth and bone quality (weight, length, diameter, Seedor index, strength, deformity, dry matter and mineral matter), in the carcass characteristics (% of carcass, breast and thigh + drumstick) and quality meat (L *, a *, b *, pH, loss of water by cooking and water holding capacity). However, the addition of from 0.75% CAC reduced weight gain and feed conversion detracted from the chickens up to 21 days old, however, the addition of up to 1 % did not affect performance when considering the total period (1 to 42 days old). For TBARS values for beef, the levels of 0.75% to 1% have provided the lowest values while treatment without growth promoter yielded higher value. The CAC can be added in the feed of broilers to the level of 1 %, no changes occur in the blood parameters and enzyme of the liver, the performance at the end of the growing period (42 days old), carcass characteristics and growth, composition and quality of the bones. However, the quality of the meat can improve with reduced lipid oxidation from 0,75. The CAC can be added in the feed of broiler until the level of 1%, without change the blood parameters, enzymatic liver, the performance at the end of the growing period (42 days old), carcass characteristics and growth, composition and quality of the bones. However, the quality of the flesh can be improved by reducing lipid oxidation as 0.75%.
Saarela, T. (Timo). "Nephrocalcinosis in infants:incidence, risk factors, natural course and renal outcome in certain risk groups." Doctoral thesis, University of Oulu, 1999. http://urn.fi/urn:isbn:951425404X.
Full textCoenen, Anja. "Inspired by nature. Investigating the reactivity of biogenic calcium oxide for CO2 capture." Thesis, The University of Sydney, 2013. http://hdl.handle.net/2123/10027.
Full textMarquis, Gaétane. "Étude de caractéristiques cognitives et sociocognitives d'élèves de sciences de la nature dans le cours de Calcul différentiel et intégral I." Mémoire, Université de Sherbrooke, 1996. http://hdl.handle.net/11143/10326.
Full textMASTINO, COSTANTINO CARLO. "Modello di calcolo multifisico per la progettazione dei requisiti acustici, energetici ed illuminazione naturale degli edifici." Doctoral thesis, Università degli Studi di Cagliari, 2013. http://hdl.handle.net/11584/266215.
Full textDearing, Kathryn Margaret. "Low-calcium pyroxene-melt equilibria at 1 bar : an experimental study in natural systems." Thesis, University of Edinburgh, 1986. http://hdl.handle.net/1842/14762.
Full textRobinson, Leanne. "Strategies to enhance the bioactive nature of peek polymer surfaces using calcium phosphate coatings." Thesis, Ulster University, 2017. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.714495.
Full textUstriyana, Putu Ayu Ditta Sarita. "Natural and Synthetic Biomacromolecules in Biomineralization." University of Akron / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=akron1573830824042347.
Full textBarrientos, Melendez Edward Angel. "Calculo de la red interna de GN para la alimentación de una caldera pirotubular." Bachelor's thesis, Universidad Nacional Mayor de San Marcos, 2016. https://hdl.handle.net/20.500.12672/6907.
Full textPublicación a texto completo no autorizada por el autor
Se muestra al detalle el procedimiento correcto del suministro de gas natural al Centro Educativo Particular “San Agustín”, para el abastecimiento de una caldera pirotubular de 50 BHP y por consiguiente incentivar una mayor utilización de nuestras reservas de Gas Natural. Calcula y selecciona el centro de regulación y medición para el equipo instalado (Caldera Pirotubular), el dimensionamiento y el tipo de la tubería a instalar y la caída de presión en el recorrido de la red de gas natural desde el centro de regulación y medición hasta el punto del equipo instalado (Caldera Pirotubular).
Trabajo de suficiencia profesional
Barrientos, Melendez Edward Angel, and Melendez Edward Angel Barrientos. "Calculo de la red interna de GN para la alimentación de una caldera pirotubular." Bachelor's thesis, Universidad Nacional Mayor de San Marcos, 2016. http://cybertesis.unmsm.edu.pe/handle/cybertesis/6907.
Full textPublicación a texto completo no autorizada por el autor
Se muestra al detalle el procedimiento correcto del suministro de gas natural al Centro Educativo Particular “San Agustín”, para el abastecimiento de una caldera pirotubular de 50 BHP y por consiguiente incentivar una mayor utilización de nuestras reservas de Gas Natural. Calcula y selecciona el centro de regulación y medición para el equipo instalado (Caldera Pirotubular), el dimensionamiento y el tipo de la tubería a instalar y la caída de presión en el recorrido de la red de gas natural desde el centro de regulación y medición hasta el punto del equipo instalado (Caldera Pirotubular).
Trabajo de suficiencia profesional
Chmaissem, Wassim. "Mise au point d'un programme de calcul numérique aux éléments finis bidimensionnels appliqué à l'étude de la convection naturelle thermique laminaire et permanente dans des enceintes fermées." Perpignan, 1998. http://www.theses.fr/1998PERP0291.
Full textTansman, Gil Fils. "Exploring the nature of crystals in cheese through X-ray diffraction." ScholarWorks @ UVM, 2014. http://scholarworks.uvm.edu/graddis/321.
Full textJustice, Brad L. "Modelling of Calcium Carbonate Precipitation in Natural Karst Environments Under Hydrodynamic and Chemical Kinetic Control." University of Akron / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=akron1145310619.
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