L'indexation et la recherche efficiente de données complexes constitue un besoin croissant face à la taille et à la variété des bases de données actuelles. Nous proposons une structure d'index arborescent basée sur un partitionnement d'un espace métrique à base de boules et d'hyper-plans. Les performances de cet index sont évaluées expérimentalement sur des collections de complexités intrinsèques différentes. La parallélisation de l'algorithme de recherche des k plus proches voisins est également effectuée afin d'encore améliorer les performances.

The purpose of this creative project was to develop a promotional videotape to be used in the marketing process of Micro Coin(TM). This area had not been explored before by Micro Coin Electronics Incorporated. Based on the information given to me about Micro Coin I was given total control of the content of the videotape. I based my creative project on comparing current marketing techniques of computers and computer software, and Micro Coin builds and improves those techniques. Micro Coin is such a revolutionary idea, there was the need to show an example of Micro Coin being used. I learned that even with total control creativity is limited.

The reduction of mill effluent discharge as a result of stringent environmental legislations can have a significant impact on sodium (Na) and sulfur (S) balances in the kraft pulping process. In order to maintain a proper balance of Na and S, kraft mills may need to adopt different makeup strategies. For this purpose, a dynamic model was developed to predict the Na and S balance in the kraft recovery cycle, as well as the accumulation of undesirable non-process elements such as chlorine (Cl) and potassium (K). The model was developed using the CADSIM software and was validated using data obtained from a Brazilian bleached kraft pulp mill. The calculated data from the model showed good agreement with mill data with respect to all parts of the mill simulated. Dynamic tests designed to calculate the white liquor sulfidity over specific periods of time also presented good agreement. The result indicates that the model is able to describe the balance of chlorine, potassium, sodium and sulfur in the kraft process. A study conducted to evaluate the Cl and K accumulation agrees with the expected behaviour observed in mill data. The presence of ash treatment systems allow to reduce Cl and K contents in recovery boiler precipitator ash from 4.2 mol% Cl(Na+K) to 1.25 mol % and from 2.25 mol % K/(Na+K) to 0.8 mol% for 100% ash treated. The tests performed for Na and S balances focused in the makeup requirement for two situations: ash purging and ash treatment to control Cl and K levels. The use of ash treatment systems reduced Na and S makeup requirement from 5 to 50% depending on the amount of ash treated. A simple mathematical model was then used to estimate the Cl balances around the recovery cycle. Given that the proper simplifications are applied, the CADSIM model and the CSTR model presented good agreement in estimating the Cl balances. This result provided not only another method for the CADSIM model to be validated but also a way to calculate a rough estimate for Cl balance.

This thesis aims at analyzing the EU&rsquo / s quest for autonomous defence vis-&agrave / -vis NATO with a special reference to the ESDP. The major research question asked is what kind of relationship exists between the EU and NATO. Accordingly, the argument is that the EU&rsquo / s desire to gain autonomy through the ESDP is unlikely to pose a threat to the primacy of NATO in European Security. In this framework, firstly, the legacy of the Cold War and transition from the ESDI to the ESDP are discussed. Secondly, the political aspect of the EU-NATO relations is addressed by touching upon the views of major powers in the EU-NATO relations. The main obstacles for the development of the EU-NATO relations are explored in the third part. The last part is allocated to the recent developments in the EU-NATO relations within the post September 11 context. This thesis is concluded by suggesting that although the evolving nature of the EU-NATO relations does not provide sufficient evidence for giving a clear answer to whether the EU and NATO cohabitate or separate, the EU and NATO should strive for cohabitating and working together in a complementary and harmonious way.

Thèse. Droit. Rennes. 1943.

Universiẗat, Diss., 2003--Bonn.

abstract: With the increasing interest in energy efficient building design, whole building energy simulation programs are increasingly employed in the design process to help architects and engineers determine which design alternatives save energy and are cost effective. DOE-2 is one of the most popular programs used by the building energy simulation community. eQUEST is a powerful graphic user interface for the DOE-2 engine. EnergyPlus is the newest generation simulation program under development by the U.S. Department of Energy which adds new modeling features beyond the DOE-2's capability. The new modeling capabilities of EnergyPlus make it possible to model new and complex building technologies which cannot be modeled by other whole building energy simulation programs. On the other hand, EnergyPlus models, especially with a large number of zones, run much slower than those of eQUEST. Both eQUEST and EnergyPlus offer their own set of advantages and disadvantages. The choice of which building simulation program should be used might vary in each case. The purpose of this thesis is to investigate the potential of both the programs to do the whole building energy analysis and compare the results with the actual building energy performance. For this purpose the energy simulation of a fully functional building is done in eQUEST and EnergyPlus and the results were compared with utility data of the building to identify the degree of closeness with which simulation results match with the actual heat and energy flows in building. It was observed in this study that eQUEST is easy to use and quick in producing results that would especially help in the taking critical decisions during the design phase. On the other hand EnergyPlus aids in modeling complex systems, producing more accurate results, but consumes more time. The choice of simulation program might change depending on the usability and applicability of the program to our need in different phases of a building's lifecycle. Therefore, it makes sense if a common front end is designed for both these simulation programs thereby allowing the user to select either the DOE-2.2 engine or the EnergyPlus engine based upon the need in each particular case. / Dissertation/Thesis / M.S. Architecture 2010

This work was made like a complex of solved examples from the textbook RNDr. Pomykalová Eva: Matematika pro gymnázia {--} Stereometrie. This complex will serve students and teachers of mathematics at the middle school as an aid by teaching stereometry {--} cut the solid with a plane. Examples are solved with the software of dynamic geometry Cabri II Plus. The solids in the elemental form were created in the same software like a macro construction. I obtained these solids from my teacher on the practise. These macro constructions were created by students of mathematics in their diploma theses at the Department of Mathematic of the Pedagogical faculty in České Budějovice. All figures in the work are also enclosed on the CD ROM. In the program Cabri we can study mutual situations of figures in a space and work with them. All cuts are available too. After their opening in Cabri the teacher can view all the construction of a cut step by step with help of the respective button in menu of the program.

The Large Hadron Collider (LHC) has provided, and will continue to provide, data for collisions at the highest energies ever seen in a particle accelerator. A strong knowledge of the properties of amplitudes for Quantum Chromodynamics in the High Energy Limit is therefore important to interpret this data. We study this limit in the context of the High Energy Jets (HEJ) formalism. This formalism resums terms in the perturbative expansion of the cross-section that behave like αn/s log (s/-t)ⁿ¯¹, which are enhanced in this limit. Understanding this region is particularly important in certain key analyses at the LHC: for example, Higgs-boson- plus-dijet analyses where cuts are applied to pick out events with a large mjj and in many searches for new physics. In this thesis, we discuss two directions in which HEJ's accuracy has been improved. Firstly, we look at adding descriptions of partonic subprocesses which are formally sub-leading in the jet cross-section but Leading Logarithmic (LL) in the particular subprocess itself. This required the derivation of new effective vertices that describe the emission of a quark/anti-quark pair in a way that is consistent with the resummation procedure. The inclusion of such processes reduces HEJ's dependence on fixed-order calculations and marks an important step towards full Next-to-Leading Logarithmic (NLL) accuracy in the inclusive dijet cross-section. The second extension was to improve our description of events involving the emission of a Higgs boson along with jets. Specifically, we derive new effective vertices which keep the full dependence on the quark mass that appears in the loops that naturally arise in such amplitudes. The formalism is also simple enough to allow for any number of extra nal state jets in the process. Therefore, HEJ is unique in its ability to provide predictions for high-multiplicity Higgs-plus-jets processes with full nite quark mass e ects. Such a calculation is far beyond the reach of any xed order approach.

Pure Yang-Mills amplitudes with all external gluons carrying positive helicity, known as all-plus amplitudes, have an especially simple structure. The tree amplitudes vanish and, up to at least two loops, the loop-level amplitudes are related to those of N = 4 super-Yang-Mills (SYM) theory. This makes all-plus amplitudes a useful testing ground for new methods of simplifing more general classes of amplitudes. In this thesis we consider three new approaches, focusing on the structure before integration. We begin with the planar (leading-colour) sector. A D-dimensional local-integrand presentation, based on four-dimensional local integrands developed for N = 4 SYM, is developed. This allows us to compute the planar six-gluon, two-loop all-plus amplitude. Its soft structure is understood before integration, and we also perform checks on collinear limits. We then proceed to consider subleading-colour structures. A multi-peripheral colour decomposition is used to find colour factors based on underlying tree-level amplitudes via generalised unitarity cuts. This allows us to find the integrand of the full-colour, two-loop, five-gluon all-plus amplitude. Tree-level BCJ relations, satisfied by amplitudes appearing in the cuts, allow us to deduce all the necessary non-planar information for the full-colour amplitude from known planar data. Finally, we consider representations satisfying colour-kinematics duality. We discuss obstacles to finding such numerators in the context of the same five-gluon amplitude at two loops. The obstacles are overcome by adding loop momentum to our numerators to accommodate tension between the values of certain cuts and the symmetries of certain diagrams. Control over the size of our ansatz is maintained by identifying a highly constraining, but desirable, symmetry property of our master numerator.