Le cube de Fibonacci est un sous-graphe isométrique de l'hyper- cube ayant un nombre de Fibonacci de sommets. Le cube de Fibonacci a été initialement introduit par W-J. Hsu comme un réseau d'interconnexion et, comme l'hypercube, il a des propriétés topologiques très attractives, mais avec une croissance plus modérée. Parmi ces propriétés, nous discutons de l'hamiltonicité dans le cube de Fibonacci et aussi dans le cube de Lucas qui est obtenu à partir du cube de Fibonacci en supprimant toutes les chaînes qui commencent et nissent avec 1. Nous trouvons également le nombre de som- mets des cubes de Fibonacci et Lucas ayant une certaine excentricité. En n, nous présentons une étude de deux cubes du point de vue de la domination et du 2-packing. / The Fibonacci cube is an isometric subgraph of the hypercube having a Fibonacci number of vertices. The Fibonacci cube was originally proposed by W-J. Hsu as an interconnection network and like the hypercube it has very attractive topological properties but with a more moderated growth. Among these properties, we discuss the hamiltonicity in the Fibonacci cube and also in the Lucas cube which is obtained by removing all the strings that begin and end with 1 from the Fibonacci cube. We give also the eccentricity sequences of the Fibonacci and the Lucas cubes. Finally, we present a study of both cubes from the domination and the 2-packing points of view.

No description available.

The thesis describes several means of processing statistical data in the ambience of Linked Data and is in particular focused on the utilization of Data Cube Vocabulary metaformat. Its content offers a description of tools related to analysis and visualization of RDF data not only from the statistical view. An indivisible part of this work is the depiction of the Payola tool on whose development is the author still working on. The outcome of this thesis is mainly proposal and consequential implementation of the system that enables a conversion of RDF data in compliance with the DCV vocabularies. The designed system was implemented and integrated to the Payola application. Several other extensions of the system were also implemented by the author. Within the scope of the implementation process there are mentioned also limitations arising from the integration with Payola. In the conclusion the writer describes a few experiments where some of the chosen datasets were applied to the implemented system. Powered by TCPDF (www.tcpdf.org)

Découvrir des renversements de tendances entre deux cubes de données offre aux utilisateurs une connaissance nouvelle et intéressante lors des fluctuations de l'univers réel modélisé : quelles sont les nouveautés ? Quelle tendance apparaît ou disparaît ? Nous introduisons le nouveau concept de Cube Émergent. Il capture les renversements de tendances en mettant en œuvre une contrainte d'émergence (conjonction de contrainte monotones et antimonotones). Les bordures, classiques en fouille de données, sont reprises pour le Cube Émergent. Dans un second temps, nous proposons un nouveau couple de bordures pour optimiser à la fois l'espace de stockage et le temps de calcul. Cette nouvelle représentation fournit une caractérisation simple de la taille du Cube Émergent aussi bien que des outils de classification et de navigation dans les cubes. La connexion entre les bordures classiques et celles proposées est formellement établie en utilisant le concept de cube transversal. Connaître la taille du Cube Émergent est d'un grand intérêt, en particulier pour ajuster au mieux la contrainte d'émergence sous-jacente. Cette problématique est traitée en étudiant une borne supérieure et en caractérisant la taille exacte du Cube Émergent. Deux stratégies sont proposées pour estimer rapidement cette taille : la première est basée sur une estimation analytique, sans accès à la base de données, la seconde s'appuie sur un comptage probabiliste utilisant les bordures proposées comme entrée de l'algorithme proche de l'optimal HYPERLOGLOG. Grâce à la particulière efficacité de cet algorithme, plusieurs itérations peuvent être réalisées pour calibrer au mieux la contrainte d'émergence. De plus, des nouvelles représentations réduites et sans perte d'information du Cube Émergent sont proposées en utilisant le concept de fermeture cubique.

Thesis (M.F.A.)--Rochester Institute of Technology, 2008. / Typescript. Accompanying CD-RW contains a PDF of the images referred to in the thesis, including images of sculptures from the artist's thesis exhibition. Includes bibliographical references (leaves 25-26).

No abstract available / Dissertation (MArch (Prof))--University of Pretoria, 2007. / Architecture / unrestricted

This master's thesis presents a study on a slot and microstrip patch as the two main types of antennas for the use on Cube Satellite (CubeSat). A study on the fundamentals of the slot antenna is researched and a circularly polarized (CPd) cavity-backed cross slot antenna and its two-element array for the CubeSat are designed and fabricated. Fabricated two-element phased array cross slot antenna has higher radiation gain and steered radiation pattern compared to the fabricated single cross slot antenna. A CPd square microstrip patch antenna for the application of the CubeSat is designed and compared with a commercial CPd microstrip patch antenna. It is concluded that our designed microstrip patch antenna has a better performance compared to the commercial one. The last part of the research focuses on the design of miniaturized slot antennas for the CubeSat working at an ultra high frequency (UHF) band. The different techniques and challenges that we face through the miniaturization are articulated throughout the research and expanded upon in this thesis. The antenna simulations were performed using Ansoft High Frequency System Simula- tor (HFSS) and the final designs for the CPd cavity-backed single and two-element cross slot antennas and CPd microstrip patch antenna were fabricated using a circuit board milling machine. These were then measured inside an anechoic chamber for the radiation pattern. Both antennas had high radiation gain and good CPd radiation quality.

No description available.

No description available.

Synopsis The thesis is concerned to cube solids and their use in primary school geometry. The main direction of the thesis is the development of children's spatial visualisation. The first part contains the explanation of key words in connected to spatial vizualization. I describe the environment of cube solids and work with them in various tasks. The second part includes records and analyses of my experiments, which were realized at two fourth grade classes within several months. First experiments were realized within regular lessons, later experiments in individual meetings. Analysing the experiments I identified and described several cognitive phenomena which I tried to explain in the conclusion.