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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
771

Modélisation des phénomènes de diffusion thermique dans un milieu fini homogène en vue de l’analyse, de la synthèse et de la validation de commandes robustes / Modelling the thermal diffusion phenomena in a finite homogeneous medium in view of the analysis, the synthesis and the validation of robust commands

Assaf, Riad 16 December 2015 (has links)
Les travaux de cette thèse concernent l’étude des phénomènes de diffusion thermique en vue de disposer de modèles de connaissances (approche boîte blanche) pour l’analyse, la synthèse fréquentielle et la validation temporelle de commandes robustes. La Partie 1 composée du chapitre 1 se focalise sur les définitions et les interprétations de l’opérateur intégro-différentiel non entier. La problématique de la simulation, dans le domaine temporel, des SDNE est précisée. La Partie 2 intitulée "Etude analytique" regroupe deux chapitres dont l’objectif est de faire une analyse fine des comportements d’ordre non entier, d’abord dans un milieu semi-infini (chapitre 2), puis dans un milieu fini (chapitre 3). La Partie 3, intitulée "Simulation numérique des réponses temporelles" regroupant deux chapitres (4 et 5), a pour finalité la mise en oeuvre de la partie « Procédé thermique » (modèle de validation d’un milieu fini) d’un simulateur des réponses temporelles d’une boucle de régulation thermique. / The work of this thesis concerns the study of the thermal diffusion phenomena to have a model (white box approach) for the analysis, the frequency synthesis and the time validation of robust commands. The Part 1 composed of chapter 1 focuses on the definitions and the interpretations of the integro-differential non-integer operator. The simulation problem in the time domain of the fractional differential systems is specified. Part 2 entitled "Analytical Study" includes two chapters whose objective is to make a detailed analysis of the fractional order behavior, first in a semi-infinite medium (chapter 2), then in a finite medium (chapter 3). Part 3, entitled "Numerical simulation of time responses" combining two chapters (4 and 5), aims the implementation of the "thermal process" plant (model validation of a finite medium) of a simulator of the thermal control loop time responses.
772

En STARK specialtidskrift : Arbetet med att ta fram en grafisk mall till en specialtidskrift från STARK Magasin, samt en diskussion om hur båda tidskrifterna kan göras om till e-format / A new magazine with a specific orientation from STARK Magasin : The development of a graphic template for a magazine with a specific orientation from STARK Magasin, and a discussion about how the magazine could be remade to an electronic format

Johnson, Sandra January 2013 (has links)
The goal with this project was to develop a graphic template for a new magazine about running, STARK Löpning. Besides the looks of the graphic elements, sections in the magazine would be developed. Finally, a discussion is made about how the magazine can be remade into an electronic format. Content analyses has been made regarding magazines with both a main and a specific orientation, to review the graphic relationship between them. A content  analysis regarding a competing magazine about running was also made. An unstructured interview was done with Art Director Petrus Iggström, to find out his way of working when he creates new graphic templates for magazines. The discussion concerning the electronic format was done based on previous research in the subject. The graphic relationship between main and specific magazines turned out to not be significant, they had few similarities. It was often showed that elements regarding the magazine s’identity had been changed, for example text fonts. This could be because the specific magazines are sighted towards a different target audience than the main magazine, and therefor wants an identity of its own. It’s an easy process to remake the magazines STARK Magasin and STARK Löpning into an electronic format, but none of the services that were looked closely upon in this essay were fitting for both passive and active readers. Nor did the services have a good enough browsing feature. For example, if the reader wants to read an article that was advertised on the cover page, it was not possible to go directly to the article from the cover.
773

SEOUL : formations et transformations du centre ancien et du quartier Gangnam / SEOUL : formation and transformation of ancient center and Gangnam district

Son, Seong-Tae 12 June 2017 (has links)
Cette étude a pour but de comprendre Séoul, capitale de la Corée du sud, du point de vue de la forme urbaine. Séoul, qui se situe en Asie de l’Est, est connue comme une ville historique majeure à laquelle furent appliqués des traditions de production et de gestion des villes ainsi que des modèles de ville propres à cette aire de civilisation, hérités de l’époque ancienne. Elle a subi des extensions accélérées et connu des transformations radicales à l’époque moderne, notamment depuis les années 1960.La forme urbaine actuelle de Séoul nous montre plusieurs aspects complexifiés et subtiles à lire: ceux bien lisibles d’une part et ceux peu lisibles d’autre part. Pour comprendre la forme urbaine de Séoul, qui comprend tous ces aspects, nous avons naturellement choisi d’étudier d’abord le centre ancien historique de la ville. Nous avons examiné sa forme urbaine ancienne et la transformation de cette dernière à travers des analyses formelles autour des points suivants: les rapports entre la forme urbaine et le modèle de capitale des Zhouli, le fengshui, et les traditions de production et de gestion des villes en Corée; puis les rapports entre la forme urbaine et la topographie particulière « du fengshui » de Séoul et le système du Bang-Dong. Nous avons par ailleurs prêté attention au dispositif structural particulier des B.A.C.C. et du réseau viaire arrière apparu dans le centre ancien et examiné également la forme urbaine au niveau du tissu urbain. Ensuite, pour comprendre la forme urbaine « moderne » de Séoul, nous avons sélectionné le quartier de Gangnam et l’avons analysé plus ou moins selon les même points que ceux cités précédemment. Enfin, nous avons mis en avant des rapports entre la forme urbaine historique du centre ancien et celle moderne du quartier de Gangnam. Dans cette recherche nous nous sommes penché sur l’identification en premier lieu de l’entité de la forme urbaine de Séoul, puis des caractéristiques de cette dernière, en utilisant des méthodes d’analyse « pratique » de la forme urbaine développées en Europe.A travers cette étude, nous avons pu déduire le fait que dans le passé la ville de Séoul a possédé des caractéristiques formelles urbaines particulières telles que la hiérarchie, l’introversion, la dualité, etc, qui peuvent être considérées comme des « spécificités formelles séouliennes », et qu’une grande partie de ces qualités se succédaient dans le centre ancien actuel transformé et le quartier moderne de Gangnam. / This study aims to understand Seoul, capital of south Korea, from the point of view of urban form. Seoul, which is located in East Asia, is known as a major historic city in which traditions of city making and city models, which are unique in this area of civilization and inherited from ancient times, were applied. It has underwent accelerated extension and experienced radical transformations in modern era especially since the 1960s.Actual urban form of Seoul shows us complicated and subtle aspect to read : well readable one on one hand and hardly readable one on the other hand. To understand this type of urban form of Seoul we have naturally taken historic ancient center of this city as object of study. We have examined its ancient urban form and its formal transformation by means of formal analysis around following points: relations between the urban form and Zhouli’s capital model, fengshui, and traditions of city making in Korea; and relations between the urban form and particular topography ‘of fengshui’ of Seoul, and Bang-Dong system. We have paid special attention to particular structural system of B.A.C.C. and of rear road network, appeared in ancient center, and also examined the urban form on the level of urban tissue. Next, to understand ‘modern’ urban form of Seoul we have selected Gangnam district and analysed it more or less according to the same points as those above mentioned. Finally, we have explored relation between urban form of historic ancient center and that of modern Gangnam district. In this research we have considered the question of identification, firstly, of entity of urban form of Seoul, and then of characteristics of the last through using ‘practical’ analyse method of urban form which was developed in Europe.Through this study we could deduce the fact that, in the past, city of Seoul possessed particular urban formal characteristics such as hierarchy, introversion, duality, etc, which could be considered as ‘Seoul’s formal specificity’, and that a large part of this quality is succeeded in transformed present ancient center and modern Gangnam district.
774

Från skiss till skiss : En studie av skissbegreppet och Henri Matisses Chapelle du rosaire

Sandberg, Erik January 2017 (has links)
The aim of this thesis is to bring together two different approaches on the concept of sketches in an attempt to broaden the understanding of what a sketch is and does. The first of these approaches is based on a notion of generative art presented by professor of art history and founder of Skissernas museum in Lund Ragnar Josephson (1891-1966). The second approach is situated in philosopher Marcia Sá Cavalcante Schubacks collection of phenomenological essays Att tänka i skisser: essäer om bildens filosofi & filosofins bilder (2011). By letting these two theories and Henri Matisse’s Chapel du rosaire and some of his sketches speak with each other my thesis establishes that the sketch is a non static motion towards shape.
775

An overview of the new tax return form and tax system

Ferreira, Petrus Hendrik (Petri) 18 February 2009 (has links)
During May 2007 it was announced that individual taxpayers would receive simplified tax return forms, will not need to do any more calculations and will no longer need to attach supporting documentation for the 2007 year of assessment. It was also announced that the tax system would be changed, making the turn around times for the assessment of tax returns faster. The primary objective of this research was to determine what effect the new tax return form, as well as the new tax system, would have on the tax practitioner submitting their client’s return. It was considered impractical to compare this study to other studies done. It was therefore decided that a questionnaire would be sent out. After considering all the research performed, it could be concluded that the new tax return form, as well as the new tax filing system, was welcomed by the taxpayer and the tax practitioner, and was a definite improvement, although some implementation problems were encountered. Copyright / Dissertation (MCom)--University of Pretoria, 2009. / Taxation / unrestricted
776

En mittpunkt för aktivitet : En studie om utformningen av ett multifunktionellt förskolerum

Hägglund, Anna-Sara January 2017 (has links)
This thesis is a study on how to design a multipurpose preschool room, where the  organization and structure of the room communicates its functions and purpose. The purpose with the study is to design a room that can be a tool for the preschool teachers and that helps children develop their curiosity and learning skills. The specific case takes place at Krongatan preschool in Eskilstuna. The study evolves around theories about form, colour, light and how it can be used in the design of a multipurpose preschool environment. The study also includes theories about affordance, design principals, spatial elements and organization of preschool environments. Empirical data has been collected through interviews, spatial analysis and observations. The theories together with the collected empiric data have resulted in a design proposal. The proposed design consists of spatial elements to make the environment legible and create an environment that invites to different activities. / Det här examensarbetet undersöker hur ett multifunktionellt förskolerum kan utformas för att kommunicera och stödja olika aktiviteter. Förskolerummet används till både aktiva och lugna aktiviteter och ska vara ett hjälpmedel för att stödja barns lärande och utveckling. Genom att rummet kan kommunicera sina funktioner ger det möjlighet för barnen att förstå och använda rummet. På så sätt kan pedagogerna använda rummet som ett redskap. Studien har genomförts i samarbete med Krongatans förskola i Eskilstuna. Den undersöker hur de rumsliga elementen färg, ljus och form kan användas i utformningen för att skapa ett multifunktionellt rum. Studien tar även upp teorier om affordance, designprinciper, rumsliga element och utformning av förskolemiljöer. Empiriska data har samlats in genom intervju, rumsanalys och observation. Teorierna tillsammans med den insamlade empirin har resulterat i ett gestaltningsförslag. Gestaltningsförslaget består av rumsliga element som tydliggör rummets olika delar och bjuder in till olika aktiviteter.
777

Náplň práce třídního učitele v současné základní škole / Responsibilities of a form master at a contemporary lower secondary school

Kodrlová, Lenka January 2020 (has links)
The diploma thesis deals with the definition of the responsibilities of a form master at a lower secondary school. The aim is to describe which activities should constitute the responsibilities of a form master at a lower secondary school, which activities form masters actually carry out, how their responsibilities are defined, and the way the form masters are informed about what they are expected to do. The theoretical part provides an overview of what can be found about form masters' work and their responsibilities in the specialized literature. In the practical part, documents issued by the Ministry of Education, Youth and Sports and the Czech School Inspectorate were scrutinised using the method document analysis. The analysis has shown that these documents do not contain any lucid definition of a form master and nor do they provide any list of their responsibilities. The second research method used in this thesis is a structured interview with four form masters working at different lower secondary schools. The interviews helped to find out what responsibilities these four form masters have to carry out and how they were informed about them. The four teachers have more or less the same responsibilities; taking attendance, communicating with parents and organizing school events being the most...
778

Canonical forms for Hamiltonian and symplectic matrices and pencils

Mehrmann, Volker, Xu, Hongguo 09 September 2005 (has links)
We study canonical forms for Hamiltonian and symplectic matrices or pencils under equivalence transformations which keep the class invariant. In contrast to other canonical forms our forms are as close as possible to a triangular structure in the same class. We give necessary and sufficient conditions for the existence of Hamiltonian and symplectic triangular Jordan, Kronecker and Schur forms. The presented results generalize results of Lin and Ho [17] and simplify the proofs presented there.
779

Některé aspekty QCD při nízkých energiích v éře přesných měření / Some aspects of low-energy QCD at the precision frontier

Husek, Tomáš January 2017 (has links)
Title: Some aspects of low-energy QCD at the precision frontier Author: Tomáš Husek Department/Institute: Institute of Particle and Nuclear Physics Supervisor of the doctoral thesis: doc. RNDr. Karol Kampf, Ph.D. Abstract: This thesis concentrates on some low-energy aspects of QCD, namely on those which are connected to the electromagnetic decays of lightest neutral pseudoscalar mesons. Calculations of radiative corrections to neutral pion decays (the Dalitz decay and the rare decay) and a novel model for the pion electro- magnetic transition form factor are subjects discussed in the attached papers, which this work is based on. The associated theoretical aspects including Chiral Perturbation Theory or the large-Nc limit are introduced. We also discuss the complications which arise when the calculations of radiative corrections for η(′) Dalitz decays are performed. Some details about the collaboration with experi- ments which incorporate the calculation of the published corrections are provided. Last but not least, some techniques related to loop integrals are shown. Keywords: Chiral Perturbation Theory, large-Nc limit, radiative corrections, pion electromagnetic transition form factor 1
780

On the Structure of the Domain of a Symmetric Jump-type Dirichlet Form

Schilling, René L., Uemura, Toshihiro January 2012 (has links)
We characterize the structure of the domain of a pure jump-type Dirichlet form which is given by a Beurling–Deny formula. In particular, we obtain su cient conditions in terms of the jumping kernel guaranteeing that the test functions are a core for the Dirichlet form and that the form is a Silverstein extension. As an application we show that for recurrent Dirichlet forms the extended Dirichlet space can be interpreted in a natural way as a homogeneous Dirichlet space. For reflected Dirichlet spaces this leads to a simple purely analytic proof that the active reflected Dirichlet space (in the sense of Chen, Fukushima and Kuwae) coincides with the extended active reflected Dirichlet space. / Dieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG-geförderten) Allianz- bzw. Nationallizenz frei zugänglich.

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