This thesis examines the relationship between price expectations and current consumption. Especially, whether the postponement of final consumption expenditure by households, as a result of their declining price expectations; which may be a deflatively-recessive spiral starter; coincides with economic theory and practice. Based on this, appropriate economic policy recommendations can be drawn. The analysis in the framework of intertemporal consumer model of two periods extended by inflation and the risk confirms this hypothesis. Price expectations positively affect current consumption through the intertemporal substitution effect of real interest rate changes. However, certain assumptions must be fulfilled. Especially, the economy must be in a fixed nominal interest rate environment, the substitution effect must not be offset by the effect of a change in the expected real disposable income or the income effect of the change in the real interest rate and the households must have a higher disposable income so that they can afford to postpone consumption. These findings coincide with the conclusions of the empirical analyzes mentioned in this thesis.

L’acquisition par MDCT et la reconstruction en coupes épaisses de 1.25 mm permettent l’analyse des artères pulmonaires jusqu’à leur 5ème ordre. L’angiographie thoracique par TDM permet de proposer des critères pronostiques de survie des patients atteints d’EP sévère. Le VD/VGd et le diamètre de la veine azygos en sont les meilleurs prédicteurs. En tenant compte de Dmax, de tmax, de l’homogénéité de l’opacification vasculaire et de la différence minimale nécessaire, le délai optimal pour l’acquisition de la vénographie par TDM se situe entre 210 et 240 sec. pour les veines infrapoplitées et entre 180 et 300 sec. pour les veines supra-poplitées. Pour une vénographie par TDM en mode séquentiel, une acquisition caudo-craniale débutant 210 sec. après l’injection du produit de contraste iodé pourrait permettre la détection optimale des caillots. En mode hélicoïdal, le sens de l’acquisition n’est pas déterminant. Malgré la possible amélioration de la détection des caillots artériels pulmonaires par MDCT, cette technique n’a pas permis de déceler plus d’EP sans TVP que le SDCT. En revanche, puisque le MDCT a permis de détecter plus de TVP sans EP que le SDCT, la vénographie par TDM en MDCT apporte une valeur ajoutée au SDCT. Par ailleurs, en MDCT, la vénographie par TDM diminue de 29% la proportion d’examens indéterminés obtenus par la seule réalisation de l’angiographie thoracique par TDM. Que ce soit en SDCT ou en MDCT, cette étude suggère l’utilité de combiner les deux examens. Chez les patients suspects d’EP, la vénographie par TDM doit s’étendre des mollets aux crêtes iliaques. Bien qu’une EP existe chez une majorité de patients atteints de TVP et vice versa, la charge en caillots dans un compartiment n’indique pas nécessairement la charge en caillots dans l’autre. / Doctorat en Sciences médicales / info:eu-repo/semantics/nonPublished

The purpose of this essay is to study the evolution and differences of motifs on bronze age objects associated with men and women, the differences in plastic ornamentation and the differences in grave goods in five danish oakcoffin burials from II-III, and fourtythree swedish cremation graves from period IV-VI. The methods used for the motifs and plastic ornamentation are an iconographical one and for the grave goods I have chosen to make a chart. The spiral motifs on beltplates and the ships on the bronze razors, for example, have played a significant part in bronze age life. The same could be said of the plastic ornamentation on the horse headed razors from period II-III. The grave goods from the danish oakcoffin burials could possibly be seen as something connected with sunpriestesses. The few gravegoods coming from the swedish cremation graves could be viewed as a consequence of larger villagers appearing during the late bronze age.

Matsituationen på förskolan är återkommande och något barn kan möta upp till fem gånger varje dag. Barn med selektivt ätande kan uppleva matsituationen som en krävande situation, där yttre aspekter kan kopplas som bidragande. Uppdraget som förskollärare innefattar att kunna tillgodose varje barns behov och bemöta varje enskild individ utifrån deras förutsättningar, vilket i sin tur ska leda till en lustfylld matsituation på förskolan. Syftet med studien är att förstå och tolka hur förskollärare beskriver selektivt ätande samt identifiera vilka aspekter som anses ha inverkan under matsituationen och därmed få en ökad förståelse för selektivt ätande i samband med matsituationen, detta för att skapa förutsättningar och tillgodose varje barns behov. Vilket mynnar ut i våra frågeställningar som lyder: Hur beskriver förskollärare selektivt ätande? Vilka aspekter har betydelse för matsituationen på förskolan? Studiens vetenskapsteori samt metod utgår från hermeneutiken och dess allmänna tolkningslära. Centrala begrepp inom hermeneutiken som tolkning och hermeneutisk spiral har använts som analysverktyg. Vi har även valt att analysera studiens resultat med inspiration från ett relationellt och kategoriskt perspektiv. Metoden semistrukturerade intervjuer har tillämpats för att samla in empiri, där fem förskollärares beskrivningar är bidragande för resultatet. Resultatet påvisar att selektivt ätande är komplext, där flertalet aspekter inverkar. Vidare visar resultatet även att pedagogers förhållningssätt i hur de arrangerar matsituationen är betydelsefull för hur denna upplevs.

This master‘s thesis deals with design adjustment of spark ignition combustion engine, which might offer larger share of recirculated exhaust gases in cylinder for reaching a large number of benefits that exhaust gas recirculation can offer. The introductory theoretical part describes exhaust gas recirculation and its influence on spark ignition combustion engine. In the following part the methods of mixture layering and types of intake ports are described. Further design of spiral intake port is made based on calculations. Capability of mixture layering is valuated by numerical simulation. Flow properties of intake ports are compared to production version by an experiment on flow station.

The aim of this thesis is to create a set of recommendations for the selected engineering enterprise. The purpose of these recommendations is to increase the enterprise effectivness and its adaptability quotient. In the first part of this thesis, based on a literature search, the management systems of successful Czech and foreign entrepreneurs are described. In the next part the most appropriate managerial approach is chosen on the basis of the performed qualitative research and this section also describes the current situation of the selected engineering enterprise. In the last part are given individual recommendations and steps to achieve their implementation.

In the future, there should be a construction of bypasses for the residential areas of Rosice and Tetčice. The bypasses should be, according to the area planning, connected to road I/23 in the place of the existing T-junction of this road and road II/394, located to the east of the city Rosice. This connection will require the changing of the exisisting junction solutions. The thesis deals with the choice of the appropriate type of junctions and mainly contains the study of this designed interchange junction.

This thesis is focused on cutting tools made of cemented carbides. It contains analysis of cemented carbides for uncoated and coated cutting tools. It contains examples of modern tools for turning, milling and drilling. Practical part of this thesis evaluates and compares cutting properties of two types of spiral drills.

This master's thesis deals with construction concept, execution and final evaluation of the stress-strain analysis of the main parts of the coal crushing fan mill. The main thesis part describes the general issue and different types of coal crushing fan mill. Construction part of the thesis is focused on optimal design evaluation and strength analysis of spiral body case as well as fan mill beater wheel.

This work deals with study of swirling flows where the spiral vortical structure appears. The main relation is to flow seen in the draft tube cone of hydraulic turbines operated out of the design point (i.e. best efficiency point). In this cases large coherent vortex structure (vortex rope) appears and consequently high pressure pulsations are propagated to the whole machine system leading to possible restriction of turbine operation. This flow features are consequence of flow instability called vortex breakdown in case of Francis turbine operated at part load (flow rate lower than optimal one). The present study is carried out using simplified device of swirl generator in order to access similar flow conditions as can be found in real hydraulic turbines. Both the dynamic and dissipation effect of spiral vortex breakdown are investigated. The first part of thesis deals with spiral form of vortex breakdown. The experimentally measured velocity profiles (LDA) and wall static pressures are correlated with numerical simulations carried out using open-source CFD package OpenFOAM 2.2.2. The high speed camera recording of cavitating vortex core is used to obtain image ensemble for further post-processing. The dissipation effect of spiral vortex structure is in detail discussed based on computed flow fields. The second part of thesis is dedicated to the application of POD decomposition to the study of spatio-temporal features of spiral vortex dynamics. Firstly the POD is applied to the both the experimentally obtained image ensemble of cavitating vortex and numerically computed static pressure fields. Secondly the comprehensive analysis of spiral vortex mitigation effect by the axial water jet is analyzed. The collaborative study employing the swirl generator apparatus designed by the researchers from Politehnica University of Timisoara in Romania is performed and changes in spatio-temporal vortex dynamic are studied. In this study the numerical data (in a form of three-dimensional pressure and velocity fields) are obtained using commercial CFD software ANSYS Fluent R14.