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1
Drouin, Mathieu. "Vers la simulation particulaire réaliste de l'interaction laser-plasma surcritique : conception d'un schéma implicite avec amortissement ajustable et fonctions de forme d'ordre élevé". Phd thesis, École normale supérieure de Cachan - ENS Cachan, 2009. http://tel.archives-ouvertes.fr/tel-00442715.
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Le caractère éminemment cinétique et hors équilibre de l'interaction laser-plasma et du transport électronique nécessite de résoudre le système complet des équations de Vlasov-Maxwell. Cette thèse se concentre sur les méthodes PIC (‘‘Particle-In-Cell''), et vise à en accroître le régime de fonctionnement. Tout d'abord, nous présentons l'analyse de stabilité linéaire d'un algorithme PIC explicite incluant l'effet de la discrétisation spatio-temporelle. Cette analyse met en exergue l'instabilité d'aliasing, que nous relions au problème, plus général, du chauffage numérique dans les codes PIC en régime surcritique. Nous montrons l'influence bénéfique de la montée en ordre du facteur de forme pour réduire ce chauffage, permettant ainsi d'atteindre des régimes de densité jusque là inaccessibles. Les codes PIC implicites ne sont pas soumis aux mêmes contraintes de stabilité que leurs équivalents explicites. En particulier nous ne sommes plus tenus de résoudre les modes haute fréquence électroniques. Une telle propriété est particulièrement précieuse lorsqu'on modélise l'interaction entre un laser à ultra-haute intensité et un plasma fortement sur-critique. Nous présentons ici l'extension relativiste de la méthode implicite dite directe, en y incluant un paramètre d'amortissement ajustable et des facteurs de forme d'ordre élevé. Ce formalisme a été implémenté dans le code ELIXIRS, 2D en espace et 3D en vitesse. Ce code est validé sur de nombreux problèmes de physique des plasmas, allant de l'expansion d'un plasma à une ou deux températures électroniques, à l'interaction laser-plasma à haut-flux, en passant par les instabilités ‘‘deux faisceaux'' et de filamentation en régime relativiste. Nous montrons notamment la capacité du code à capturer les principales caractéristiques de l'interaction laser-plasma, malgré une discrétisation spatio-temporelle dégradée, autorisant ainsi des gains substantiels en temps de calcul.
2
Irzyk, Michaël. "Généralisation de faisceaux d'ions à partir de plasmas à haute densité : simulations numériques par code PIC de l'extraction, de la mise en forme du faisceau et de l'usure des grilles, développement de sources radio-fréquences à forte densité de courant (Ar, Xe) et à fort taux de dissociation (O2, N2)". Orléans, 2001. http://www.theses.fr/2001ORLE2036.
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Cette thèse concerne le développement de sources s'ions à fort courant de faisceau (>1mA/cm2) dans la gamme d'énergie du keV à partir de gaz rares (Ar, Xe) et de gaz réactifs (O2, N2). Deux études complémentaires abordant les aspects numériques et expérimentaux ont été menées en parallèle. Dans une première étude, plusieurs codes ont été écrits et parallélisés. Ces codes simulent l'extraction induit par le phénomène d'échange de charges et la mise en forme du faisceau résultant de la somme des micro-faisceaux. Des travaux de validation de ces codes ont été effectués et les résultats expérimentaux se sont avérés être en bon accord avec les résultats des simulations. Dans la seconde étude, trois nouvelles sources d'ions ont été développées. Ces trois sources utilisent une optique d'extraction à 3 grilles. Les deux premières décharges (de 5 cm de diamètre) se caractérisent par un couplage de l'énergie radio-fréquence par une antenne de type "hélicon". Elles diffèrent par la structure du champ magnétique générée soit par des bobines soit par des aimants. La dernière source (de 10 cm de diamètre) se caractérise par sa configuration de type TCP plan. Les décharges et les sources d'ions ont été caractérisées en terme de densité du plasma, d'homogénéité, de courant de faisceau, de divergence des micro-faisceaux (analyseur de divergence) et de composition du faisceau d'ions (analyseur à temps de vol). Les résultats obtenus montrent que les codes numériques développées sont des outils adaptés et performants dans le cadre de la conception de sources d'ions. Par ailleurs, les sources d'ions conçues dans cette étude présentent des caractéristiques intéressantes en terme de densité de courant et de composition du faisceau (50 % d'espèce atomique).
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Antonini, Daniela, i Francesca Baldazzi. "Forma della città e forme dell'abitare. Centro culturale a Mirandola". Master's thesis, Alma Mater Studiorum - Università di Bologna, 2014. http://amslaurea.unibo.it/6890/.
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Il progetto si sviluppa in primo luogo a scala urbana nel centro storico di Mirandola, insistendo sul tema del limite andato perduto con la demolizione della cinta muraria. Il disegno del centro nasce dalla suggestione che identifica in Giovanni Pico della Mirandola l’autore dell’”Hypnerotomachia Poliphili”. Il nucleo storico della città diventa il luogo del percorso onirico di Polifilo alla ricerca dell’amata, che collega aree verdi trasformate in giardini all’area del castello.
L’approfondimento a scala progettuale coinvolge l’area dell’antica cittadella del castello. Il tema principale è quindi il costruire nel costruito, il confronto con le preesistenze e le tante trasformazioni che il luogo ha subito. Il progetto si basa sul disegno degli spazi pubblici e sul tema culturale che l’area stessa offre, data la presenza del museo civico e del teatro. Il nuovo edificio è un centro culturale nel quale si accolgono ulteriori esposizioni museali e spazi dedicate a sedi di associazioni culturali cittadine.
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Halluin, Cyrille d'. "Apprentissage PAC par exemples simples : plate-forme d'apprentissage de langages réguliers". Lille 1, 1998. https://pepite-depot.univ-lille.fr/LIBRE/Th_Num/1998/50376-1998-105.pdf.
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L'apprentissage est le processus par lequel un systeme (naturel ou non) acquiert de nouvelles connaissances. L'apprentissage automatique (machine learning) a pour objectif de creer des systemes artificiels ayant cette capacite d'apprendre, c'est-a-dire capable de traiter de nouvelles donnees sans avoir a programmer explicitement ce traitement. Plus precisement, il s'agit de definir des modeles theoriques d'apprentissage formalisant les idees intuitives que l'on a de l'apprentissage naturel, puis de prouver l'apprenabilite de classes de concepts dans de tels modeles. L'objet de cette these est double. Dans un premier temps, nous proposons un nouveau modele theorique d'apprentissage appele modele pacs. Ce modele est base sur le modele pac propose par valiant. Il a pour originalite de favoriser l'utilisation d'exemples simples par rapport a la cible lors de la phase d'apprentissage. Cet assouplissement du modele pac permet de montrer l'apprenabilite de classes non prouvees apprenables dans le modele de valiant (classe des formules dnf, classe des langages k-reversibles). Ensuite, nous presentons la conception et l'implantation d'une bibliotheque generique, appelee
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RAQUIN, JANICK. "Maladie de niemann-pick type c forme juvenile : a propos d'un cas". Reims, 1994. http://www.theses.fr/1994REIMM032.
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Benmeziane, Karim. "Etude d'une source ECR d'ions H- pour accélérateurs de forte puissance". Paris 11, 2004. http://www.theses.fr/2004PA112041.
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Après une revue des différentes sources d'ions H-ainsi que des méthodes permettant l'amélioration de leur production, la première parti de cette thèse est consacrée à l'étude et la caractérisation de la source ECR. Nous tentons d'expliquer les raisons du faible courant d'ions H-produit par cette source (5 [mu]A). La principale raison est le fort couplage entre les électrons et l'onde HF conduisant à un chauffage donc à une énergie électronique trop importante. A l'issue de ce diagnostic, il a été décidé d'utiliser la source ECR comme source primaire d'électrons destinés à être injectés dans une seconde enceinte. Deux études théorique (PIC-MCC 2D-fluide) et expérimentale sont alors effectuées sur le développement de cette source " hybride ". Le code de calcul aide à la compréhension des phénomènes physiques se produisant dans la source. Une énergie d'injection optimale à 40 eV ainsi qu'une distance d'interaction efficace des électrons avec le plasma d'environ 3 cm ont notamment été mises en évidence. Sachant qu'il est très difficile de transporter un faisceau intense d'électrons de faible énergie, nous avons choisi de séparer la chambre plasma par une grille polarisable. Une vérification expérimentale d'une distance efficace comprise entre 2 et 3 cm a été faite ainsi qu'une nette amélioration du courant extrait. Certaines des méthodes supposées accroître les performances de la source ont été essayées avec plus ou moins de succès, d'autres ont volontairement été mises de coté. Au bout du compte, le courant d'ions H- a gagné un facteur 300 depuis la mesure des premiers ions négatifs; il est passé de 5 [mu]A à 1,4 mA. La source offre ainsi un fort potentiel d'évolutionAfter a review on the H- ion source and methods allowing the enhancement of their production, the first part of this thesis is dedicated to the ECR ion source diagnostic. We explain the reason why the H- current is so low with such sources (5[mu]A). It is manly due high energy electrons created by a very efficient coupling between the microwave and the electrons. So, it has been decided to use the ECR ion source not as an H- ion source but as an electron provider to inject into a separated chamber. Theoretical and experimental investigations have been done. Then, a hybrid PIC 2D MCC 3D fluid code has been developed. Its aim is to study the effect of an electron injection into a cylindrical gas chamber. Many results have been brought as well as the best injected energy and the electron penetration length efficiency. Thus, an injection of 40 eV electron beam in a length of 3 cm seems to be the most efficiency. This last point has been observed in the experiment which consists in the installation of a polarized grid in the plasma chamber to obtain the two separated chamber. Some methods supposed to increase the source performance have been tried and some have been blown out. Finally an enhancement of a factor 300 has been observed since all modifications. The H- ion current is now higher than 1,4 mA and a high potential of improvement is expected in the future for this new type of source
7
Roch, Jean-Louis. "Calcul formel et parallélisme : l'architecture du système PAC et son arithmétique rationnelle". Phd thesis, Grenoble INPG, 1989. http://tel.archives-ouvertes.fr/tel-00334457.
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Pac est un système de calcul formel dédié a une machine Mind massivement parallèle. Dans une première partie, l'architecture du système est décrite. Elle est illustrée par une modélisation théorique et pratique de la parallélisation du produit de deux polynômes. Le système Pac est implante sur la machine t40 de Fps (32 processeurs). Dans une deuxième partie, l'arithmétique nodale en précision infinie sur les rationnels est étudiée. Différents algorithmes sont dégagés, notamment pour la multiplication, la division et le pgcd d'entiers de taille quelconque. Une vectorisation de l'arithmétique de base est discutée et expérimentée
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Ringer, Pia Sabrina [Verfasser], i Reinhard [Akademischer Betreuer] Fässler. "Advancing molecular force measurements across talin / Pia Sabrina Ringer ; Betreuer: Reinhard Fässler". München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2018. http://d-nb.info/1152946056/34.
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Roch, Jean-Louis Della Dora Jean. "Calcul formel et parallélisme l'architecture du système PAC et son arithmétique rationnelle /". S.l. : Université Grenoble 1, 2008. http://tel.archives-ouvertes.fr/tel-00334457.
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Ashari, Widi S. "The form generating controller as an alternative control technique /". St. Lucia, Qld, 2002. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe16775.pdf.
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Bermingham, Charlotte R. "Measurement of pico/femto-Newton scale forces using the lateral molecular force microscope". Thesis, University of Bristol, 2016. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.715803.
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Jackson, Cornelius Christiaan. "Tactile force-sensing for dynamic gripping using piezoelectric force- sensors". Thesis, Bloemfontein : Central University of Technology, Free State, 2009. http://hdl.handle.net/11462/34.
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Sullivan, Patricia Lynne. "The utility of force : war aims and asymmetric war outcomes /". For electronic version search Digital dissertations database. Restricted to UC campuses. Access is free to UC campus dissertations, 2004. http://uclibs.org/PID/11984.
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Crespo, Saucedo Raùl. "Plate-forme logicielle et matérielle pour le turbo codage et décodage : Turbo2000". Lorient, 2004. http://www.theses.fr/2004LORIS030.
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Cette thèse s'incrit dans le cadre de l'interaction algorithme/silicium pour la conception de circuits intégrés numériques de haute performance sur FPGA. Elle traite de la conception et de la réalisation d'une plate-forme logicielle et matérielle pour le codage et le décodage des turbo codes duo-binaires à 16 états, appelés codes Turbo2000. Cette plate-forme est constituée de deux parties : une partie matérielle et une partie logicielle. La partie matérielle consiste en un circuit décodeur duo-binaire à 16 états à haut débit et en une interface entre le décodeur et le bus PCI de l'ordinateur, tous deux implémentés dans un même composant FPGA. Le décodage du circuit fait appel à l'algorithme Max-Log-MAP. La partie logicielle, programmée en visual C++, est chargée du processus de codage, de la génération du bruit, de la modulation, de la démodulation, de l'option de décodage logiciel et de la mesure des performances de BER et de FER, ainsi que l'affichage graphique des résultats. La plate-forme de codage/décodage Turbo2000 a été conçue de telle sorte à offrir à l'utilisateur une grande flexibilité dans le maniement des paramètres de codage et de décodage, nécessaires aux nombreux cas de figures envisagés. Le décodage, dans sa version hardware, offre des débits au minimum 20 fois plus élevés qu'avec la version software.
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Goanvic, Rozenn. "Formes tardives de maladie de niemann-pick : etude theorique a propos d'une double observation familiale". Nantes, 1991. http://www.theses.fr/1991NANT009M.
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Marks, Christopher Edwin. "Classification of vector-valued modular forms of dimension less than six /". Diss., Digital Dissertations Database. Restricted to UC campuses, 2009. http://uclibs.org/PID/11984.
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Descroix, Cannie Claire. "Optimisation de forme des structures à partir d'un grand code éléments finis". Grenoble INPG, 1989. http://www.theses.fr/1989INPG0125.
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On optimise la forme des structures planes et axisymetriques. Les chargements peuvent etre des forces ponctuelles, reparties sur le bord, ou volumiques. Pour les structures axisymetriques, ils peuvent etre developpes en series de fourier. On minimise les objectifs suivants : le poids, l'integrale d'une fonction dependant de la contrainte equivalente de von mises ou de la contrainte tangentielle de bord. On peut prendre en compte des limitations sur : le volume, une fonction de contraintes, la geometrie. Les calculs des sensibilites sont effectues a partir de methodes utilisant la discretisation par elements finis. L'evolution du maillage est basee sur l'utilisation d'une loi physique. Cela permet d'employer un mailleur libre. Les developpements informatiques ont ete effectues dans le code elements finis systus (developpe et commercialise par framatome).
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Zyzik, Eve Catherine. "Encoding meaning with polyfunctional forms : the acquisition of clitics in L2 Spanish /". For electronic version search Digital dissertations database. Restricted to UC campuses. Access is free to UC campus dissertations, 2004. http://uclibs.org/PID/11984.
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PIRES, JOAO dos S. J. "Avaliação da grandeza tensão de pico prática em equipamentos clínicos utilizados em radiodiagnóstico". reponame:Repositório Institucional do IPEN, 2007. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11716.
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Made available in DSpace on 2014-10-09T12:55:03Z (GMT). No. of bitstreams: 0Made available in DSpace on 2014-10-09T14:05:56Z (GMT). No. of bitstreams: 1 12869.pdf: 4811202 bytes, checksum: 0173b38520efa5ad7a157158292d063c (MD5)
Dissertacao (Mestrado)
IPEN/D
Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
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Al-Hachami, Wathiq. "Investigation of pico-litre inkjet printing for nano-gram scale solid form screening of pharmaceuticals". Thesis, University of Nottingham, 2018. http://eprints.nottingham.ac.uk/52031/.
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The tendency of the majority of active pharmaceutical ingredients (APIs) to exist in different solid forms with keeping their chemical structures is called polymorphism. This phenomenon has gained a lot of interest in the pharmaceutical industry, hoping to avoid producing unexpected transformations of compounds during and after synthesis. The optimal way to avoid that is to subject the API, at the early stage of development, under various conditions in order to obtain an elegant (safe, effective, and stable) drug for the next formulation step. The aim of this thesis was to investigate some factors that affect the appearance of different polymorphs during screening of some APIs. Four model drugs were selected: paracetamol; carbamazepine; mefenamic acid; and flufenamic acid. All have been well-characterised previously in terms of solid-state forms. Piezoelectric, or 2D inkjet printing technique was used as a main technique in fabrication of nanoarrays of APIs onto predefined design on a solid tunable substrates because of its ability to control the delivered quantities of the the printed materials accurately, without any direct contact with the used substrate that may cause a sample cross-contamination. Light optical microscope was used to investigate the behaviour of the printed droplets during and after solvent evaporation and turn to dried spots, and to confirm the crystalline state of some spots by using the polarised light in the same microscope. Raman spectroscopy at low-wavenumber, or phonon region (40-400 cm-1) was used for the first time to identify the resulted polymorphs after the printing process as its ability to probe the alterations that happen in the molecular skeleton inside the crystal lattice , in addition to molecular region (400-1800 cm-1) to analyse the resulting spots. In chapter three, the piezoelectric inkjet printing technique was successfully used for the first time to miniaturise, screen, and study the stability of the APIs at nano quantities in the range of (1-500 ng), about six-ordered magnification less than the reported studies. It was found that the variation in the printed quantities can produce different states and polymorphs. Stability with time was also studied for all the printed samples and it was noticed the variation in time for some printed drugs to convert from solid amorphous to crystalline state. In chapter four, the advantage of the ability of the gold-coated slide to undergo further chemical modifications was exploited to create new substrates. Chemical modification of the gold substrates was carried out by treating them with two types of thiols to form self-assembly monolayers (SAMs) and use them as substrates in polymorph screening of some APIs. The new prepared SAMs were examined by preliminary tests like atomic force microscope (AFM) and water contact angle (WCA) measurements to investigate the texture of the new substrates before using them in printing process. It was found that changing the chemical structure of the substrate can lead to different polymorphs. In chapter five, an attempt to create highly hydrophobic substrates was done to investigate whether it can affect the propensity of APIs for polymorphism. Fluorinated compounds were used in this chapter as they are considered more hydrophobic than the substrates used in the previous part of the work The effect of the fluorinated substrates on appearance of new polymorphs was studied. Two fluorinated compounds were selected for preparation of high-water repellent surfaces and using them as substrates as they have the ability to limit the spreading of the printed droplets of the API, and allow the molecules to be constructed layer by layer and form a condense spot. The new fluorinated substrates were examined before using them in printing, and they exhibited high WCA. Another FLUF polymorph (VI) was investigated in addition to the two reference (I and III) polymorphs used in FLUF polymorphic screening. It was found that the intensity of the Raman peaks of the printed spots of APIs was good and clear to recognise when using fluorinated SAMs as a substrate, while the fluorinated substrate prepared from Flutec LE15 exhibited fluorescence effect due to the interactions between the glass and the drug’s spot spectrum.
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Santos, Edjan Fernandes dos. "Medidas e forma em geometria". reponame:Repositório Institucional da UFC, 2015. http://www.repositorio.ufc.br/handle/riufc/14499.
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SANTOS, Edjan Fernandes dos. Medidas e forma em geometria . 2015. 61 f. Dissertação (Mestrado em Matemática em Rede Nacional) – Centro de Ciências, Universidade Federal do Ceará, Juazeiro do Norte, 2015.Submitted by Erivan Almeida (eneiro@bol.com.br) on 2015-12-15T13:01:29Z No. of bitstreams: 1 2015_dis_efsantos.pdf: 2235474 bytes, checksum: 976431d2a4782cb88fd52234af9d0839 (MD5)
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The work initially brings a historical approach, Greece (with the Pythagoreans), with the mathematician Eudoxus, referring to perhaps the greatest mathematical work, Euclid’s books. Then bring definitions and constructions of the real numbers as a complete body, the concepts of tiny, supreme, infinite sequences especially the convergent, Cauchy sequences and the three fundamental theorems for the calculus course, the annulment of the theorem, the intermediate value and Weierstrass. Soon after, we define metric and metric space in the plan, we show that the process of comparing an arbitrary segment with another set as unit leads to various types of positive real numbers: integers, rational and irrational, where the notion of measurable and immeasurable segment is explained. The area calculation for plane figures, where the usual formulas for the areas of simple polygons are presented, we present and application, Pick’s formula, without demonstration of the theorem, simple, fun, practical and efficient for area calculation, one this mathematical discipline of content throughout basic education in Brazil always present in external evaluation as OBMEP.
O trabalho traz inicialmente uma abordagem histórica, da Grécia (com os pitagóricos), com o matemático Eudoxo, fazendo referência a talvez à maior obra matemática, os livros de Euclides. Em seguida, trazemos definições e construções sobre os números reais com um corpo completo, os conceitos de ínfimo, supremo, sequências infinitas com destaque as convergentes, sequência de Cauchy e os três teoremas fundamentais para o curso de cálculo, o teorema do anulamento, do valor intermediário e de Weierstrass. Logo após, definimos métrica e espaço métrico no plano, mostramos que o processo de comparar um segmento arbitrário com outro fixado como unidade nos conduz aos diversos tipos de números reais positivos: inteiros, racionais e irracionais, onde a noção de segmento comensurável é explicada. O cálculo de área para figuras planas, onde são apresentadas as fórmulas usuais para as áreas dos polígonos mais simples, apresentamos uma aplicação, a fórmula de Pick, sem demonstração do teorema, simples, divertida, prática e eficiente para o cálculo de área, um conteúdo da disciplina de matemática presente em todo o ensino básico do Brasil sempre presente em avaliações externas como a OBMEP.
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De, Silva Shalutha. "Force controlled hexapod walking". Thesis, Queensland University of Technology, 2014. https://eprints.qut.edu.au/78978/1/Karunakalage_De%20Silva_Thesis.pdf.
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This thesis is a study on controlling methods for six-legged robots. The study is based on mathematical modeling and simulation. A new joint controller is proposed and tested in simulation that uses joint angles and leg reaction force as inputs to generate a torque, and a method to optimise this controller is formulated and validated. Simulation shows that hexapod can walk on flat ground based on PID controllers with just four target configurations and a set of leg coordination rules, which provided the basis for the design of the new controller.
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Boaz, Cynthia Anne Marie. "Extreme democracy : electoral rules and the development of party systems in the former Soviet Union /". For electronic version search Digital dissertations database. Restricted to UC campuses. Access is free to UC campus dissertations, 2003. http://uclibs.org/PID/11984.
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De, Jong Jon Andrew. "The effects of wheat middlings, particle size, complete diet grinding, and diet form on nursery and finishing pig growth performance". Thesis, Kansas State University, 2013. http://hdl.handle.net/2097/15555.
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Master of ScienceDepartment of Animal Sciences and Industry
Joel DeRouchey
Seven experiments using a total of 2,997 nursery and finishing pigs were used to determine the effects of: 1) dietary wheat middlings (midds), dried distillers grains with solubles (DDGS), and NE diet formulation on nursery pig growth performance; 2) corn particle size, complete diet grinding, and diet form on finishing pig growth performance, and carcass characteristics, and 3) particle size, complete diet grinding, and diet form on nursery pig growth. Experiments 1-4 evaluated dietary wheat middlings at levels of up to 20% of the diet for 7 to 23 kg pigs. Increasing dietary midds decreased growth performance but mainly when 10% of more was added. Balancing diets containing 10 or 20% midds on a NE basis had no significant effects on performance compared with not adjusting for NE of the diet. In Exp. 5, the effects of decreasing particle size, complete diet grinding, and diet form were evaluated on finishing pig growth performance, and carcass characteristics. Diet form × portion ground interactions existed for ADG, ADFI, and HCW as grinding the complete diet in meal form was detrimental to performance but advantageous to performance when diets were fed in pelleted form. Reducing the particle size of corn improved G:F and caloric efficiencies. Pelleting the diet improved ADG, G:F, caloric efficiencies, HCW, and loin depth. Experiment 6 evaluated varying particle sizes, diet form, and complete diet grinding on nursery pig growth performance. Pigs fed pelleted diets had improved ADG, G:F, and caloric efficiencies. Fine grinding corn or the complete diet with high by-products diet decreased ADG, ADFI, G:F, and final BW. Experiment 7 evaluated varying particle sizes of corn and DDGS, diet form, and complete diet grinding on nursery pig growth performance. Pigs fed finely ground corn had decreased ADFI when the diet was fed in pellet form and more severe reductions in ADFI when diets were fed in meal form resulting in a diet form × corn particle size interaction. Pigs fed pelleted diets had decreased ADG, ADFI, G:F and final BW, but improved caloric efficiencies. Finely grinding corn decreased ADG, and feeding DDGS decreased ADG, ADFI, and NE caloric efficiency.
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Telo, Gonçalo José da Conceição. "Estudo de um actuador baseado em ligas com memória de forma". Master's thesis, Faculdade de Ciências e Tecnologia, 2013. http://hdl.handle.net/10362/11223.
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Dissertação para obtenção do Grau de Mestre
em Engenharia Civil - Perfil EstruturasAs ligas com memória de forma (do inglês shape memory alloys) apresentam propriedades únicas no seio da engenharia e, em particular, da engenharia civil e por isso são alvo de interesse nas mais variadas áreas. Na sua aplicação sob a forma de actuadores é tirado partido do seu efeito de memória de forma, uma propriedade que se traduz na capacidade que estas ligas têm de recuperar a sua configuração original, após sofrerem deformações, através de um ciclo de aquecimento. Esta capacidade torna possível a produção de movimento e força, ou seja, a realização de trabalho, factor determinante na utilização como actuador. Neste trabalho foi instalado um setup experimental com o propósito de estudar o controlo da variável força, produzida por um fio de liga com memória de forma durante a sua mudança de fase. Para tal foram utilizados algoritmos de controlo implementados em LabVIEWTM, uma linguagem de programação gráfica. O controlo é baseado nas acções de controlo proporcional-integral-derivativo (PID), estudando-se a sensibilidade do controlador à variação dos parâmetros de controlo, por forma a obter uma resposta o mais optimizada possível. O objectivo desta dissertação é o estudo da viabilidade de aplicação deste tipo de material sob a forma de um controlador, seguindo uma estratégia de design para este. Para tal foi implementado o controlador e estudado num setup experimental, podendo posteriormente ser aplicado num modelo a uma escala reduzida de um elemento de fachada.
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Pitts, Michael M. Carter Timothy R. "Knowledge value added as a methodology to evaluate the Office of Force Transformation's Wolf-PAC / Stiletto program concepts". Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2006. http://library.nps.navy.mil/uhtbin/hyperion/06Sep%5FPitts.pdf.
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Thesis (M.S. in Information Systems Technology)--Naval Postgraduate School, September 2006.Thesis Advisor(s): Thomas Housel. "September 2006." Includes bibliographical references (p. 75-76). Also available in print.
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Carter, Timothy R. "Knowledge value added as a methodology to evaluate the Office of Force Transformation's Wolf-PAC / Stiletto program concepts". Thesis, Monterey, California. Naval Postgraduate School, 2006. http://hdl.handle.net/10945/2557.
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With the DoD acquisition of programs and projects becoming increasingly expensive, it is imperative that the method or measure for determining value for a particular project, real or conceptual, be identified and used enterprise-wide. The form of analysis known as the Knowledge Value Added (KVA) methodology, KVA will evaluate the Office Force Transformation Wolf-PAC / Stiletto concepts. This thesis will explore two distinctly different areas which demonstrate the KVA method's use and benefit: 1. The use of the KVA method to find improvements in a Command and Control (C2) process, and 2. To demonstrate the increase value that the Stiletto ship brings to littoral operations (i.e., Mine hunting). The resulting values will be compared in varying notional scenarios to assess potential improvements for knowledge processes. This method of analysis will demonstrate how a reengineered process, resulting from the KVA method, enables organizations to maximize knowledge creation and production capacity.
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Paulus, Benjamin David. "The two cities : 'sexuality' and chastity as rival political forms". Thesis, University of Aberdeen, 2017. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=233428.
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FAVRE, MOURGUES AMELIE. "Le couplage nanospray / piege ionique : de la vulgarisation des pics fantomes a l'etude d'oligonucleotides sous forme de simple brin ou de dimere specifique". Paris 6, 1999. http://www.theses.fr/1999PA066186.
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L'apparition de pics fantomes sur les spectres de masse a ete mise en evidence lors de l'utilisation de l'electrospray / piege ionique esquire< t m>, dans des conditions d'utilisation particulieres. L'identification de tels artefacts est importante car l'existence de ces signaux peut entrainer des erreurs d'interpretation, surtout dans le cas de l'etude de composes inconnus. Puis, connaissant les conditions limites qu'il est preferable d'eviter pour ne pas observer de pics fantomes, l'esquire< t m> a permis une analyse approfondie du comportement en phase gazeuse des oligonucleotides. Tout d'abord, la structure de simples brins d'oligonucleotides a ete verifiee par spectrometrie de masse en tandem. Alors que certains mecanismes de fragmentation ont ete confirmes, de nouvelles hypotheses ont ete emises concernant d'autres fragmentations. Par ces mecanismes, la localisation des charges negatives des ions a egalement ete envisagee en phase gazeuse le long des chaines nucleiques. Pour appuyer les suggestions proposees concernant le positionnement des charges negatives, des oligonucleotides multideprotones et possedant un cation sodium ont de plus ete isoles et soumis a une excitation resonnante dans le but de localiser le sel se formant entre le cation na + et un des groupements phosphodiester charge negativement. De ces resultats, des hypotheses de conformation en phase gazeuse des oligonucleotides sous forme simple brin ont ete formulees. Un des moyen pour confirmer ces hypotheses serait de realiser des experiences d'echange hydrogene / deuterium en phase gazeuse. Le probleme des doubles brins specifiques et non-specifiques a ensuite ete aborde. Une premiere etape a consiste a mettre au point les conditions d'analyse permettant la detection de tels especes via le couplage nanospray / piege ionique quadripolaire. Puis, les questions suivantes ont ete abordees : les especes non-covalentes specifiques (duplex) preexistant en solution sont-elles conservees en phase gazeuse ? leur observation est-elle favorisee par rapport a celle des especes non-covalentes non-specifiques ? dans le cas ou des dimeres specifiques sont observes, resultent-ils des liaisons de type watson et crick, ou bien engagent-ils d'autres interactions ?
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Livesey, Daria. "High performance computations with Hecke algebras : bilinear forms and Jantzen filtrations". Thesis, University of Aberdeen, 2014. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=214835.
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Zepeda, Salvador. "Intermolecular interactions : from the hydrogen bond to biological function : an atomic force microscopy study of antifreeze glycoproteins and ice /". For electronic version search Digital dissertations database. Restricted to UC campuses. Access is free to UC campus dissertations, 2004. http://uclibs.org/PID/11984.
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Al, Khoury César. "Déterminants de la résistance osseuse chez des jeunes hommes en surpoids et obèses : identification et effets de deux programmes longitudinaux d'entrainement physique (force vs.endurance)". Thesis, Orléans, 2017. https://theses.univ-orleans.fr/prive/accesESR/2017ORLE2063_vm.pdf.
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Les buts de cette thèse étaient de définir les déterminants de la densité minérale osseuse, des indices géométriques de résistance osseuse de la hanche et du score de l’os trabéculaire chez des jeunes hommes en surpoids et obèses et d’explorer les influences de deux programmes longitudinaux d’entraînement physique (force vs. endurance) sur les paramètres osseux chez des jeunes hommes en surpoids et obèses. Trois principales études ont été menées. Une première étude (préliminaire) a montré que l’obésité et le surpoids sont associés à de faibles valeurs de CSI, BSI etISI chez les jeunes hommes. Une deuxième étude menée chez 52 jeunes hommes en surpoids et obèses a montré que la masse maigre et la VO2 max (L/min) étaient positivement corrélés au CMO, à la DMO et aux indices géométriques de résistance osseuse de la hanche. La VO2 max (ml/mn/kg) était positivement corrélée au TBS alors que la force maximale en demi-squat était corrélée à la DMO du rachis lombaire. Une troisième étude (longitudinale)a montré que l’entraînement de force est un moyen intéressant pour diminuer la masse grasse et augmenter la force musculaire, le contenu minéral osseux du corps entier et la DMO du rachis lombaire chez les jeunes hommes obèses et en surpoids et que l’entraînement en endurance est un moyen efficace pour diminuer la masse grasse, augmenter la performance aérobie et la DMO du rachis lombaire dans cette population. Ces différents résultats suggèrent une adaptation ostéogénique significative des jeunes hommes en surpoids et obèses en réponse à l’entraînement de la forceThe aims of this thesis were to define the determinants of bone mineral density, hip geometry indices and trabecularbone score in a group of young overweight and obese men. Three main studies have been conducted. The first study has shown that obesity and overweight are associated with lower CSI, BSI, and ISI values in young men. The second study conducted on 52 young overweight and obese men has shown that VO2 max (in liter per minute) and lean massare positive determinants of BMC, BMD and FN geometry indices. VO2 max (in milliliter per minute per kilogram)was the only positive determinant of TBS, and 1-RM half squat was a positive determinant of L1–L4 BMD. The third study (longitudinal) has shown that strength training is an effective method to decrease fat mass and to increase muscular strength, whole body bone mineral content and lumbar spine BMD, and that endurance training is an effective method to decrease fat mass and to increase maximal aerobic velocity and lumbar spine BMD in this population. These different results suggest a significant osteogenic adaptation in young overweight and obese men inresponse to strength training
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Anderson, Ellen, i Martin Granlöf. "Get a Grip : Dynamic force adjustment in robotic gripper". Thesis, KTH, Skolan för industriell teknik och management (ITM), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-264515.
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Autonomous mobile robots are on the rise and are to be expected on the market in about 5-10 years. Several challenges need to be solved for this to happen, and the most crucial ones are to develop versatile and safe robots. The Get a Grip robot is a dynamic force adjustment gripper using inputs from two different sensory systems. The construction of the robot consists of two parallel gripper plates moved by a rack and pinion gear attached to a direct current (DC) motor. Embedded into one of the plates is a Force Sensitive Resistor (FSR) for input of the gripper’s exerted force. Mounted to the other plate is a self constructed Slip sensor used for measuring the occurrence of slip and slip rate. A surrounding crane for mounting of the gripper and lifting was also constructed. The idea of this bachelor’s thesis project is to enable lifting of objects with unknown weight without the gripper exerting more force than necessary. This is something that will be useful in both industrial applications and in household robots in the future. In order to realize the concept two different methods for calculating the gripper’s applied force were tested, one using motor current and the other using a FSR sensor. Through testing it was concluded that the FSR sensor was the method giving better accuracy and consistency. Proportional–Integral–Derivative (PID) controllers were then tested for both setting force references for the gripper using the Slip sensor as input, and controlling the exerted force in the gripper using the FSR as input. The results led to two PID controllers thought to be sufficient as starting points for further testing of the complete system.Mobila autonoma robotar förväntas vara på marknaden inom de närmaste 5-10 åren. För att det här ska ske är det många utmaningar som behöver lösas och de mest kritiska är att utveckla mångsidiga och säkra robotar. Get a Grip-roboten är en dynamisk kraftanpassande robotklo som tar insignaler från två olika sensorsystem. Konstruktionen består av två parallella plattor som förflyttas av kuggstänger och kugghjul drivna av en DC motor. Inbyggt i en av kloplattorna finns en tryckkänslig kraftsensor (FSR) monterad för att registrera kraften som klon genererar. På den andra kloplattan sitter en egenkonstruerad glidsensor som registrerar om glidning sker och själva glidhastighet. En kran för att montera klon och lyfta den konstruerades även. Idén bakom detta kandidatexamens projektet är att klon ska kunna lyfta ett objekt med okänd vikt utan att använda mer kraft än nödvändigt. Det är något som kommer vara användbart både vid industriella tillämpningar och hos husållsrobotar i framtiden. För att realisera konceptet testades två olika metoder för att estimera kraften klon genererar, den första genom motorströmmen och den andra genom en FSR sensor. Tester genomfördes för båda metoderna och slutsatsen blev att FSR sensorn gav bäst noggrannhet och var mest konsekvent. PID-regulatorn, för bestämning av kraftreferens, med insignal från glidsensorn och PID-regulatorn, för genererad klokraft, med insignal från FSR:n testades separat. Resultatet blev två PID-regulatorer som ansågs tillräckliga för fortsätta tester med båda regulatorerna tillsammans.
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Guillaud, Jean-Claude. "Enseignement et apprentissage du concept de force en classe de troisième". Université Joseph Fourier (Grenoble), 1998. http://www.theses.fr/1998GRE10159.
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Notre travail s'inscrit dans une étape de la recherche en didactique de la physique, qui, au vu des travaux existants, permet d'élaborer une problématique prenant en compte simultanément des questions d'enseignement et d'apprentissage. Nous proposons un tour d'horizon sur la nature des concepts de base de la mécanique, tel qu'il ressort des travaux actuels en histoire des sciences. Nous parcourons les nombreux travaux de didactique qui ont mis en évidence la grande difficulté d'appréhension chez les élèves du mouvement, du repos et de la notion de force. Nous rappelons l'importance des intermédiaires sémiotiques dans l'élaboration d'une pensée nouvelle. Notre hypothèse centrale est que la compréhension conceptuelle implique la coordination de registres sémiotiques heterogenes, dans leur mise en relation avec différentes situations expérimentales. Nous avons fait le choix de fournir aux élèves un cadre explicite de modèle enseigne, dont nous supposons qu'il ouvrera a la fois comme point d'appui et comme cadre de contraintes pour des raisonnements d'élèves confrontes a un certain type de situations expérimentales. L'expérimentation a été conduite dans trois classes de troisième. Nous donnons, a l'aide de ces outils, une description de l'évolution des raisonnements d'élèves. Nous montrons qu'un système d'explications primitives vient permettre et surtout s'opposer au modèle propose. Nous montrons aussi que les dimensions des productions des élèves n'évoluent pas d'une manière homogène selon le registre sémiotique. Nous observons aussi des explications parallèles, ou se combinent des références au modèle propose et au registre primitif. Mais surtout, nous montrons que le modèle agit bien comme un système de contraintes qui, peu a peu, impose de ne pas se laisser négliger par les élèves. Nous montrons qu'avec un investissement assez faible, une progression sensible peut être atteinte sur des questions dont toute la recherche en didactique montre la difficulté.
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Eyraud, Laurent. "Optimisation et calibration à SATURNE du polarimètre POLDER : expérience t20 au Jefferson laboratory ; mesure des facteurs de forme du deuton". Université Joseph Fourier (Grenoble), 1998. http://www.theses.fr/1998GRE10223.
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Cette these presente un travail experimental sur la mise au point, les modifications et l'utilisation du polarimetre tensoriel a deutons polder, dans l'experience t#2#0 au jefferson laboratory (etats unis). Le polarimetre polder est base sur la reaction d'analyse h($$d, 2p)n et permet de mesurer la polarisation tensorielle des deutons pour des energies cinetiques comprises entre 160 mev et 520 mev. La premiere partie de cette these presente le polarimetre ainsi que les resultats obtenus lors de l'experience de calibration a saturne (saclay, france). Plusieurs developpements sur le polarimetre en vue de l'experience t#2#0 ont ete realises (chambres a fils a 3 plans de detection, cible, hodoscopes). De plus, un systeme d'acquisition en standard fastbus-vme, utilise pendant la calibration, a ete mis au point. La seconde partie est consacree a l'experience t#2#0 qui a ete la premiere grande experience realisee au jefferson laboratory. L'ensemble du dispositif experimental, l'accelerateur cebaf et l'analyse des donnees sont presentes. Enfin, les resultats preliminaires obtenus sur la valeur de la polarisation t#2#0 et sur l'extraction des facteurs de forme electromagnetique du deuton (g#o, g#q et g#m) sont presentes pour six valeurs du moment transfere q compris entre 4. 11 et 6. 8 fm##1, et compares aux predictions des modeles theoriques existants.
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Sumiya, Lilia Asuca. "A hora da alfabetiza??o: atores, ideias e institui??es na constru??o do PAIC-CE". Universidade Federal do Rio Grande do Norte, 2015. http://repositorio.ufrn.br/handle/123456789/20854.
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Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (CAPES)
Esta Tese tem como intuito compreender como uma determinada condi??o social adquire relev?ncia a ponto de ser considerado um problema que merece uma a??o governamental e como determinadas propostas de solu??o ganham evid?ncia em detrimento de outras. Mais especificamente, pretende-se analisar o campo das pol?ticas p?blicas de educa??o e verificar se os modelos anal?ticos adotados possuem for?a explicativa para se compreender como o tema do analfabetismo escolar entrou na agenda do governo do Estado do Cear? e como o Programa de Alfabetiza??o na Idade Certa (PAIC) foi se configurando ao longo do tempo. Do ponto de vista emp?rico das pol?ticas p?blicas de educa??o no Brasil, trata-se de um caso relevante ao se verificar que, historicamente, as pol?ticas de alfabetiza??o concentraram-se nos jovens e adultos, revelando a aus?ncia de a??es espec?ficas para as crian?as em est?gio de alfabetiza??o. Para compreendermos as raz?es que levaram o tema ao topo da agenda governamental cearense, esta Tese tem como base principal de sustenta??o a literatura sobre a an?lise de pol?ticas p?blicas, com ?nfase nos processos de forma??o de agenda e elabora??o de alternativas. Recorre-se a uma abordagem h?brida a partir da combina??o das ferramentas anal?ticas do Modelo de M?ltiplos Fluxos de Kingdon (1995), do Modelo de Coaliz?o Advocat?ria de Sabatier e Jenkins Smith (1993) e da abordagem do neoinstitucionalismo hist?rico. A pesquisa ? de natureza qualitativa e adotou como estrat?gia o m?todo de estudo de caso ?nico. Foi realizada uma triangula??o de dados a partir de documentos institucionais relativos ao PAIC, notas taquigr?ficas de eventos organizados pela Assembleia Legislativa do Cear?, mat?rias da m?dia, estudos acad?micos e entrevistas com atores chave de diferentes institui??es. Esta Tese conclui que, dada a complexidade do caso em estudo, a combina??o conjunta das tr?s abordagens anal?ticas mostrou-se adequada e necess?ria para a compreens?o dos m?ltiplos fatores que explicam a entrada do tema na agenda decis?ria do governo estadual cearense e o desenho do PAIC. Destacam-se a import?ncia das ideias e do empreendedor de pol?ticas p?blicas, a relev?ncia da etapa de reconhecimento do problema para a forma??o de uma ampla base de coaliz?o, o processo de constru??o das alternativas de a??o e a trajet?ria hist?rica das pol?ticas de educa??o no Cear?. Este estudo contribui, portanto, para uma melhor compreens?o das etapas que comp?em a forma??o de agenda nas pol?ticas p?blicas, em particular no campo da educa??o.
The objective of this thesis is to understand how a certain social condition becomes relevant enough to be regarded as an issue worthy of government action and how certain proposed initiatives prevail while others are discarded. More specifically, the goal is to discuss public policy for education and check whether the analytical models employed are significant enough to explain how the literacy issue became part of the policy agenda of the government of the State of Cear? in Brazil, and how the Literacy Program at the Right Age (PAIC) developed over time. From the empirical perspective about public policy for education in Brazil, this is a relevant case when one takes into account that, historically, the literacy policies are focused on teenagers and adults, implying a lack of specific initiatives towards children at the proper age of learning to read and write. In order to understand what drove this issue to the top of the state government agenda, this thesis is primarily based on the literature about public policy analysis, with focus on the agenda setting process and development of proposals. A hybrid approach is used, combining analytical tools from Kingdon?s Multiple Streams Model (1995), the Advocacy Coalition Framework by Sabatier and Jenkins Smith (1993) and the historical new institutionalism lens. The research method is qualitative and based on the single case study method. The data set was assembled from institutional PAIC-related documents, tachygraphy notes from sessions at Cear??s State House of Representatives, press clippings, academic studies and interviews with key participants from several organizations. The conclusion of this thesis is that, given the complexity of the case in point, the combination of the three analytical methods is adequate and necessary to understanding the multiple drivers for this issue to have entered Cear??s state government agenda and the design of the PAIC itself. Particularly relevant are the ideas and the policy entrepreneurs, the processes of problem recognition for the composition of a wide coalition and for the specification of alternatives, and the path dependence of the education policy in Cear?. This study adds, as a result, to a better understanding of the stages that make up the agenda setting in public policy, in particular in the field of education.
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LE, NEVE MARC. "Etude d'un laser nd : yag de forte energie pompe par diodes et declenche par absorbant saturable cr:yag". Université Joseph Fourier (Grenoble), 1996. http://www.theses.fr/1996GRE10133.
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Nous etudions un laser pompe transversalement par diodes et declenche passivement. L'extraction de fortes energies et la demonstration de rendements eleves sont recherches. Les capacites de differentes matrices dopees neodyme a offrir des rendements d'absorption eleves sont analysees en fonction de leur spectre d'absorption. A cet effet, un code de calcul prealablement qualifie experimentalement, ainsi que les caracterisations effectuees permettent d'acceder a la repartition spatiale de l'energie des diodes dans une section du barreau. Une etude parametree du depot d'energie est effectuee. Nous caracterisons ensuite les absorbants saturables (cr#4#+:yag, colorants bdn) par l'etude de la saturation de l'absorption. La mesure simultanee de la transmission et de l'intensite de fluorescence avec le cr#4#+, nous permet de remettre en cause l'importance de l'absorption dans l'etat excite et de proposer une autre origine a l'absorption residuelle de ces sites aux fortes fluences d'excitation. En declenchement actif, le laser demontre une energie de sortie disponible de 80 mj soit un rendement optique d'environ 10%. Ces resultats sont bien ajustes a l'aide des equations du bilan. Le fonctionnement de ce laser est totalement multimode (longitudinal et transverse). Puis, nous etudions le declenchement passif. Le resonateur plan-concave multimode de base presente un comportement spatio-temporel tres complexe et non reproductible. L'impulsion de sortie comporte plusieurs composantes temporelles distinctes. La repartition d'energie dans le faisceau ne reproduit nullement la carte de depot d'energie. La competition entre les modes transverses est a l'origine de ce comportement. Pour s'en affranchir, il faut tendre vers un oscillateur monomode transverse. Nous y parvenons en definissant des cavites dont le rayon du mode fondamental est eleve. Ainsi, avec une cavite telescopique nous obtenons des impulsions stables temporellement et spatialement, tout en offrant des valeurs de rendement et d'energie interessantes. En declenchement actif et passif, les perspectives d'optimisation du rendement du laser sont egalement quantifiees
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Sharma, Manoj Kumar. "Design and Fabrication of Intention Based Upper-Limb Exoskeleton". University of Dayton / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1462290841.
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McCombie, Arleen. "Discourses of history and forms of cultural memory : in the works of James Hogg and Walter Scott". Thesis, University of Aberdeen, 2004. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=167778.
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This thesis discusses different narrative forms of cultural memory in the historical fiction of James Hogg and Walter Scott. The introduction explains the variety of post-Enlightenment discourse on ‘history’: certain works of popular history were subject to new appreciation while canonical histories from the eighteenth century were now criticised in periodical reviews, the leading cultural arbiters of the day. Chapter 1 focuses on the ‘ballad collection’ as a literary genre within an antiquarian matrix. The chapter considers Scott and Hogg’s differing approaches to the textual protocols of antiquarianism when writing on ‘legendary’ history. Chapter 2 surveys the persistence of a providentialist historiography with regard to the ‘anecdote’, particularly as this narrative sub-genre featured extensively in compendia of popular history. Chapter 3 compares the ‘epic’ discourse of The Tale of Old Mortality with the ‘lowlier’ narrative forms canvassed in The Heart of Mid-Lothian, the chronicle and the family saga. Chapter 4 reads Scott and Hogg’s late works on Highland history in relation to the ‘national tale’ genre. These works do not belong properly to either ‘folk’ or ‘novel’ discourse and they formulate most clearly an anti-progressivist notion of history. The Conclusion considers how the practice of ‘reviving’ history is determined in large part by the narrative forms and conventions in which history is written, with the additional consideration that for Scott and Hogg an aesthetic of multiformity arises from the fact that they are often writing the spoken. Rather than ‘explain’ the past both authors use narrative structure to destabilise accepted versions of the past and keep in play the kinds of stories ‘histories’ often forgets.
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Anderson, Rachel Victoria. "No place like home? : examining family involvement in the reintegration of male former child soldiers in Sierra Leone". Thesis, University of Aberdeen, 2014. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=225720.
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Since the late 1980s Disarmament, Demobilisation and Reintegration (DDR) programmes have been an integral part of post-conflict reconstruction. This was especially true of Sierra Leone's post-conflict reconstruction which has frequently been hailed a 'multilateral success story' by the international community. Nevertheless, within Western-authored DDR literature there is a widespread but little interrogated assertion that, in post-conflict contexts, resettling former child soldiers with their families is always the best option for social reintegration. Family members, it is argued, are most able to provide the psychosocial support that former child soldiers require in order to successfully make the transition to civilian life in the aftermath of war. Using an interdisciplinary and multi-method approach and drawing on empirical research undertaken in Sierra Leone, this thesis questions the universality of this assumption. The thesis analyses conceptual understandings of family and childhood in DDR policy and locally in Sierra Leone focusing on their implications for child soldier reintegration. It also examines the immediate and long-term effects of DDR's policy of family reintegration for child soldiers' social reintegration with a view to determining whether the current approach is indeed always 'in the best interests of the child'. Finally, the thesis examines the effect of local family dynamics on the wider post-conflict reconstruction effort and vice versa. The thesis findings suggest that whilst the policy of family reunification in child soldier DDR has a number of benefits, it may also lay the foundations for renewed conflict in the future by reifying certain contentious pre-war power structures.
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Levallois, Pierre. "L'établissement public marchand : Recherche sur l'avenir de l'entreprise en forme d'établissement public". Thesis, Lyon, 2019. http://scd-rproxy.u-strasbg.fr/login?url=https://www.dalloz-bibliotheque.fr/pvurl.php?r=http%3A%2F%2Fdallozbndpro-pvgpsla.dalloz-bibliotheque.fr%2Ffr%2Fpvpage2.asp%3Fpuc%3D5442%26nu%3D239%26selfsize%3D1.
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Figure de l’entreprise en forme d’établissement public, l’établissement public industriel et commercial français déçoit, à tel point que la question de sa pérennité se pose ouvertement. Sous sa bannière, l’entreprise en forme d’établissement public subit deux sortes d’assauts. D’abord, l’utilisation de l’établissement public industriel et commercial à des fins de commodité de gestion d’activités administratives a porté un coup décisif à son identité d’entreprise. De plus, les lourdeurs de son statut juridique questionnent sa légitimité à servir de support à une telle activité économique. Ensuite, si le droit de la concurrence s’est jusqu’à présent contenté de neutraliser ses avantages statutaires, il semble désormais l’exclure plus simplement du marché. Il estime en effet son statut juridique porteur d’une garantie implicite, qu’il assimile à une aide d’État prohibée. La thèse tire alors parti de ce dépérissement de l’établissement public industriel et commercial pour proposer un nouveau modèle d’entreprise en forme d’établissement public : l’établissement public marchand. Son existence se justifie par les difficultés du modèle de la société commerciale à se substituer à celui de l’établissement public autant que par les potentialités offertes par ce dernier en matière de concurrence pour le marché. L’avènement de l’établissement public marchand suppose en revanche une révolution culturelle de la manière dont le droit administratif envisage l’intervention économique des personnes publiques. Elle sera nécessaire pour proposer un régime de l’établissement public marchand à la fois digne de sa vocation de marché et conforme au droit de l’Union européenneAs a representation of the undertaking in the form of a publicly owned establishment, the French publicly owned industrial and commercial establishment disappoints, to such an extent that the question of its durability arises openly. Under its banner, undertaking in the form of a publicly owned establishment undergoes two kinds of assaults. First, the use of the publicly owned industrial and commercial establishment for the sake of administrative activities management convenience was a decisive blow to its undertaking identity. Moreover, the heaviness of its legal status questions its legitimacy to serve as a support for an economic activity. Second, if competition law has so far merely neutralized its statutory benefits, it now seems to be simply excluding it from the market. In fact, it considers that with its legal status goes an implied guarantee, which it regards as prohibited State aid. The thesis then takes advantage of the decay of the publicly owned industrial and commercial establishment to suggest a new model of undertaking in the form of a publicly owned establishment: the merchant publicly owned establishment. On the one hand its very existence is justified by the difficulties of the model of the commercial society to stand in for the public establishment as much as by the potentialities offered by the latter in terms of competition for the market. On the other hand, the coming of the publicly owned merchant establishment presupposes a cultural revolution in the way in which administrative law contemplates the economic intervention of public persons. It is essential to suggest a regime of the merchant publicly owned establishment worthy of its vocation as a market and, at the same time, in conformity with European Union law
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Willaume, Pierre. "Modélisation de formes 3D par les graphes pour leur reconnaissance : application à la vision 3D en robotique dans des tâches de "Pick-and-Place"". Thesis, Strasbourg, 2017. http://www.theses.fr/2017STRAD041/document.
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L'objectif de cette thèse est de concevoir un système automatique constitué d'une ou plusieurs caméras capables de détecter en trois dimensions un amalgame d'objets stockés dans un conteneur. Pour ceci, il est nécessaire de modéliser, de reconnaître et de localiser des formes dans une image. Dans un premier temps, Nous proposons une solution d'optimisation du calibrage de caméras. C'est une tâche essentielle pour récupérer des informations quantitatives sur les images capturées. Cette méthode nécessite des compétences spécifiques en matière de traitement d'image, ce qui n'est pas toujours le cas dans l'industrie. Nous proposons d'automatiser et d'optimiser le système d'étalonnage en éliminant la sélection des images par l'opérateur. Ensuite, nous proposons d'améliorer les systèmes de détection d'objets fins et sans motif. Enfin, nous proposons d'adapter des algorithmes évolutionnaires dans le but d'optimiser les temps de rechercheThe aim of this thesis is to design an automatic system involving one or several cameras capable of detecting in three dimensions a set of abjects placed in a bin. To do this, we must model, recognize and locate shapes in an image. First, we propose a solution to optimize the camera calibration system. This is an essential task for the retrieval of quantitative information about the captured images. However, the current methods require specific skills in image processing, which are not always available in industry. We propose to automate and optimize the calibration system by eliminating the selection of images by the operator. Second, we propose to improve the detection systems for thin and featureless abjects. Finally, we propose to adapt evolutionary algorithms to optimize search times
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Young, Sheila M. "The hen party : a study of the form, meaning and function of a prenuptial ritual for women". Thesis, University of Aberdeen, 2016. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=233941.
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Morrow, Gael Beverley. "Platelets harbour pro- and anti-fibrinolytic proteins on their activated membrane surface that regulate fibrinolysis of thrombi formed under flow". Thesis, University of Aberdeen, 2018. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=237022.
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Platelets play an essential role in haemostasis by adhering to the damaged vessel wall and forming a platelet plug to arrest bleeding. Although platelets are traditionally thought of as pro-coagulant, they possess the ability to harbour functional proteins that are key to fibrinolysis, the breakdown of the blood clot, on their surface. They are therefore substantially well equipped to regulate local fibrinolysis. This thesis aims to further define the role of platelets in fibrinolysis, in particular platelet-derived plasminogen activator inhibitor 1 (PAI-1) and plasminogen. PAI-1 is the principal physiological inhibitor of tissue-type plasminogen activator (tPA), and plasminogen is the zymogen for plasmin. In Chapter 3, we show that platelet-derived PAI-1 is released from platelet α-granules by an αIIbβ3 and fibrin dependent mechanism. We found that a significant portion of α-granular PAI1 is retained on the surface of highly activated PS-positive platelets, and activity analysis revealed the majority of PAI-1 on the platelet surface was in its active form. The functional role of platelet PAI-1 was investigated by analysis of tPA-mediated lysis of Chandler model thrombi. Our data revealed a striking dependence for platelet PAI-1 in stabilising platelet-rich thrombi against degradation. Chapter 4 characterises the expression of a novel transmembrane receptor, Plg-RKT, on the surface of human and mouse platelets. This revealed that plasminogen and Plg-RKT augment one another's binding to the platelet surface. Furthermore, analysis of plasminogen binding to the platelet surface revealed two distinct binding sites: 1) via Plg-RKT and 2) via a fibrin and αIIbβ3 dependent mechanism. Finally, Chapter 5 of this thesis discusses the optimisation of a system that monitors thrombus formation and fibrinolysis under flow. Use of this model will help to further elucidate the complex role that platelets play in controlling the balance between coagulation and fibrinolysis.
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Pilard, Nathalie. "On the importance and the variety of forms of intuition in the early work of Carl Gustav Jung 1896-1921". Thesis, University of Aberdeen, 2012. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=201688.
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This thesis examines and gathers together for the first time all the various forms of intuition in the early publications (1896-1921) of the Swiss psychologist C. G. Jung (1875-1961) in order to demonstrate the central role of intuition in Jung’s work. Issues of terminology, translation, and dissimilar editions of Jung’s writing are treated in Part 1, which defines the plurality of meaning of the notion of intuition to be found in early Jung. Part 2 looks at the different contexts of the birth of intuition in Jung’s psychology: the debates that animated the intellectual life at the turn of the twentieth century, Jung’s teachers, how Jung experimented spiritist sessions and what he termed “active imagination,” and finally what Jung meant by “under-conscious,” this state in between unconscious and consciousness, which favours the appearance of intuition. Those definitions and contexts clarified, Parts 3 to 6 chronologically investigate intuition in details in Jung’s psychology of the under-conscious, of the unconscious, in Jungian practice, and in Jung’s psychology of consciousness respectively. The section consecrated to the under-conscious (Part 3) divides intuition into supernatural intuitions (from the realm of the paranormal to prophecies – 3.1) and psychological intuitions (3.2). Jung’s undergraduate lectures at the Zofingia Club and Liber Novus – or else, Red Book – are treated in 3.1, as supernatural intuitions. There, common traits appear between Jung’s exposition (the lectures) and Jung’s experience (Liber Novus) of intuition. Jung’s Medical Dissertation, a psychiatrist study on so-called occult phenomena, and Jung’s word association tests are treated in 3.2. Teleological hallucinations, visions, automatisms, or Einfälle, to be defined in the course of the thesis, are some of the numerous forms of intuition that are classified under psychological intuitions. Intuition in the unconscious (Part 4) manifests itself through two ways: the “primitive” aspect of empathy (1) and the contemporary Anschauung. As a pre-form – because it is unconscious – the Anschauung is in turn extremely close to the two other unconscious pre-forms of instinct and archetype. After a close historical, cultural, and terminological examination of the term Anschauung (4.1), 4.2 investigates the equivalences and distinctions of the three unconscious contents, processes, and energies. Dear to Jung as a doctor, intuition in Jungian practice (Part 5) is extremely present in his early writing. Jung described it in his constructive method, which he equated to Bergson’s intuitive method, in active imagination, and through the form that we call empathy (2), which appears during the phenomenon of transference. Part 6 is devoted to the study of intuition in Jung’s psychology of consciousness, the central topics of which are functions and types. Because it is informed of the role played by intuition in all the other areas of Jung’s psychology, this section presents the intuitive type and function in perspective and permits to grasp their specificities with regard to the three other functions and types of sensation, feeling, and thinking.
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Clegg, Mark. "The relationship between strategic culture and force protection : a study of the UK and US during the period 1999-2010". Thesis, University of Aberdeen, 2012. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=206989.
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Protecting deployed servicemen makes sound military sense. For as long as war has been around, commanders and comrades have had a vested interest in preserving their own side's fighting power in order to defeat their enemies. As such, they have drawn upon technological developments and tactical agility to reduce the vulnerabilities of their own troops whilst aiming to exploit the weaknesses of adversaries. This activity, labelled force protection in common military parlance, has often been overlooked by commentators in favour of other fields of war and warfare. However, attitudes which influence each state's individual approach towards force protection stem from extremely diverse groups. Force protection transcends the traditional notions of levels of war possibly as much as any other military activity. As a function during warfare it has the potential to trouble individuals at the lowest and the highest levels of a state. Depending on one's point of view, force protection can be perceived as a purely military function or as a political imperative of paramount importance. Either view garners the attention of the domestic population which also has potential to impact on the approach to protecting deployed servicemen. Combined, the sub-cultures of the government, the military and the people form a state's strategic culture. However, these sub-cultures are often at odds and view similar problems through different lenses resulting in tensions which create a difficult backdrop for military commanders to assess. Since strategic culture is the key origin of influence for approaches to force protection, it is the natural extension that each state approaches this activity in different ways. Moreover, just as strategic culture evolves in reaction to perceptions and events, so does a state's attitude towards force protection. This study traces the period 1999 to 2010 from UK and US perspectives. It finds that both states evolved in their attitudes and approaches to force protection and indeed approached this element of war in strikingly different ways. The British approached Operation Allied Force in 1999 with a confident attitude towards force protection. UK politicians and senior commanders, backed up by a public that appeared at ease with sending British servicemen into danger, favoured tactical prowess as the means to achieve the conditions for force protection. However, this hubris was out of context as the sensitive political conditions of the US-led NATO operation demanded a 2 more technological approach; an approach which the British military struggled to match. Despite this very public experience, British strategic culture maintained its viewpoint in the early stages of the Iraq war. As UK troops set out to war in 2003, once again tactical superiority was the prescription for force protection. However, insurgent tactics, mismatched force ratios and inferior equipment all tested the UK approach. Domestic sensitivity increased during the course of this commitment and by 2006 UK politicians became more involved in the force protection dimension. As the second half of the decade progressed, with a combative domestic political landscape and UK servicemen involved in wars in Iraq and Afghanistan, political micromanagement came to characterise the British approach to force protection. This was consistent with the reports of senior UK military leaders who acknowledged the political nature of this most sensitive element of war. Nevertheless, despite such a tense domestic backdrop, British strategic culture remained unchanged as the evolving attitudes failed to manifest in shifts in behaviour. UK force protection remained the domain of military professional and tactical prowess was the favoured method of achieving it. The US journey highlights the political imperative which was placed upon force protection during the build-up and execution of Operation Allied Force. Despite widespread criticism this approach, which in practise involved politicians dictating the conduct of tactical activity, resulted in no US losses and thereby achieved one of the stated measures of success. Nevertheless, such an approach was found to be wholly unsuitable for the early stages of the Iraq war. The US initial approach to force protection was the traditional one of relying on armour, firepower and distance to remain out of the reach of one's adversaries. Insurgents were challenged to develop new munitions and tactics in order to outwit the superpower as onlookers anticipated that the US strategic community would balk in the face of rising casualties. Meanwhile, Iraqi civilians were caught in the middle of a seemingly unending fire fight as the US, tasked with providing security for Iraqis, appeared to be more concerned with their own welfare. In many ways this period confirmed the traditional narrative of US strategic culture as well as US force protection. However, as the second half of the decade unfolded, the work of figures including General David Petraeus served to turn around this losing battle. The widely-acknowledged Surge of US troops, resolute political backing by President Bush and steady support of the US public provided the conditions for US forces, armed with a fundamentally new doctrinal approach to conduct a significant shift in their approach to force protection. Although some in the US strategic community remained culturally attuned to their old ways, most acknowledged that recent successes in Iraq and Afghanistan were inextricably linked to the US approach to force protection. The year 2009 brought a change of Administration in the White House and a change of senior military commander at the helm of US and NATO forces in Afghanistan. However, despite a certain amount of domestic political turbulence and a seemingly unstoppable escalation in US casualties there appeared no signs of an alteration to the recent evolutions in the US strategic cultural approach to force protection. Force protectionism had been substituted for risk acceptance and courageous restraint.
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Gaßmann, Luise [Verfasser], Rüdiger [Akademischer Betreuer] Görtz, Rüdiger [Gutachter] Görtz i Lukas [Gutachter] Pfeifer. "Scherwellenelastographie (Acoustic radiation force impulse) bei autoimmunen und cholestatischen Lebererkrankungen (AIH, PBC, PSC, Overlap-Syndrom) / Luise Gaßmann ; Gutachter: Rüdiger Görtz, Lukas Pfeifer ; Betreuer: Rüdiger Görtz". Erlangen : Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 2020. http://d-nb.info/1213979285/34.
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Bochu, Philippe. "Modélisation et simulation de la gravure chimique des monocristaux". Phd thesis, Université Joseph Fourier (Grenoble), 1995. http://tel.archives-ouvertes.fr/tel-00005029.
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Nous présentons dans cette thèse deux approches de modélisation 3D de la gravure chimique des monocristaux. A partir de la géométrie initiale d'un cristal et de ses propriétés physiques, les modèles décrits permettent de prévoir l'évolution de la forme du cristal au cours du temps. La prémière méthode que nous proposons est une extension en 3D de la construction géométrique dûe à Wulff et Jaccodine, basée sur l'analyse de résultats expérimentaux. Nous montrons qu'un sommet 3D peut être représenté par une composition de demi-espaces, dont chacun se déplace suivant une vitesse correspondant à son orientation. Nous étudions ensuite les limitations de cette méthode, liées à son implémentation. La seconde méthode que nous proposons s'appuie sur un modèle théorique original. Nous établissons tout d'abord une propriété applicable aux surfaces de classe C1 sur lesquelles la vitesse d'un point ne dépend que de la normale en ce point. Nous montrons ensuite qu'il est possible d'approcher la forme d'un cristal polyédrique par une surface de classe C1 et ainsi de lui appliquer le résultat précédent par passage à la limite. Pour représenter la forme du cristal et la trajectoire des points de sa surface, nous utilisons la notion d'espaces fibres. Nous présentons enfin une implémentation sous forme d'acteurs de cette méthode en 2D et montrons comment la méthode peut être étendue en 3D.
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Ouypornkochagorn, Sairoong. "Uptake and biotransformation of arsenic species in various biological forms". Available from the University of Aberdeen Library and Historic Collections Digital Resources. Restricted: contains 3rd party material and therfore cannot be made available electronically, 2009. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?application=DIGITOOL-3&owner=resourcediscovery&custom_att_2=simple_viewer&pid=65766.
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Thesis (Ph.D.)--Aberdeen University, 2009.With: Monitoring the arsenic and iodine exposure of seaweed-eating North Ronaldsay sheep from the gestational and sucking periods to adulthood by using horns as a dietary archive / Guilhem Caumette ... et al. Environmental Science and technology 2007: 41, 8, 2673-2679. Includes bibliographical references.
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Silva, Priscilla Rocha [UNESP]. "Diagnóstico da logística de caqui 'rama forte' e 'fuyu', boas práticas agrícolas e análise dos perigos e pontos críticos de controle". Universidade Estadual Paulista (UNESP), 2005. http://hdl.handle.net/11449/93478.
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O Brasil é o quarto produtor mundial de caqui e o Estado de São Paulo responde por aproximadamente 58% da produção nacional. Observa-se uma tendência mundial em exigências quanto à qualidade e segurança do alimento, visto a divulgação de surtos de DTAs (doenças transmitidas por alimentos). Os patógenos responsáveis pelas DTAs podem ser introduzidos nas frutas em qualquer etapa da cadeia produtiva. Deste modo, elaborou-se este trabalho com o objetivo de realizar um diagnóstico das práticas empregadas em pós-colheita do caqui 'Rama Forte' e 'Fuyu', propor medidas de Boas Práticas Agrícolas (BPA) e elaborar um modelo do plano de Análise de Perigos e Pontos Críticos de Controle (APPCC), visando a qualidade e a segurança do alimento para o consumidor. Para diagnosticar os principais perigos e pontos de contaminação no manuseio do caqui, foram aplicados questionários de práticas de campo e pós-colheita em 11 galpões de embalagem de caqui 'Rama Forte' e 'Fuyu', nas principais regiões produtoras do Estado de São Paulo. Amostras para análises microbiológicas foram coletadas em diferentes etapas, da colheita até o varejo, sendo realizadas contagens de bolores e leveduras, coliformes totais e termotolerantes, bem como, pesquisa de Salmonella spp. e Listeria monocytogenes com o sistema BAX®. Os resultados dos questionários indicaram que, o caqui não é submetido a tratamentos fitossanitários pós-colheita; não há aplicação de Boas Práticas Agrícolas e os manipuladores dos diferentes segmentos da cadeia produtiva não recebem treinamento em práticas de higiene pessoal e segurança do alimento. Outros pontos relevantes que comprometem a qualidade do produto e geram perdas significativas são o uso inadequado de embalagens e transporte, o processo de destanização e máquinas de classificação...
It was evaluated the yield, accumulation and exportation of nutrients by sweet pepper plants grafted and non grafted, under protected cultivation. The research was carried out from August 2003 to May 2004, at the Technical School Augusto Tortolero Araújo, part of Paula Souza State Center of Technological Education, in Paraguaçu Paulista, SP, in Brazil. The rootstocks used - AF 2638 and AF 2640, are resistant to Phytophthora capsici Leonian and Meloidogyne incognita race 2. The treatments were constituted of non grafted hybrids 'Rúbia R' and 'Margarita'; grafted on two evaluated rootstocks and grafted on themselves. The experimental design was of completely randomized blocks with eight treatments, four replications and fifteen plants per plot. Five plants were sent for chemical analysis. Evaluations of the total plants height, first fork height, early blossom, length and average number of internodes, total yield and fruits characteristics of 12 harvests, fresh and dry matter of leaves, stems and fruits, were carried out. The samples for the chemical analysis were taken at the 35th, 83th, 135th, 173th and 213th days after transplantation, with the objective of determining the accumulation and exportation of the nutrients. The results proved that the grafted and non grafted plants had average yield, with the average of 132 and 153 t ha-1 for the grafted combinations of 'Rúbia R' and non grafted plants of 'Rúbia R' respectively and 144 and 132 t ha-1 for the grafted combinations of 'Margarita' and non grafted plants of 'Margarita' respectively. The accumulation of the nutrients was equivalent for grafted combinations and non grafted plants, and nutrients in decreasing order of accumulation were: K>N>Ca>Mg>P>S. It was evidenced that grafting sweet pepper plants neither its agronomic performance, nor interfered on the uptake of nutrients' absorption.