De senaste decennierna har det blivit allt tydligare att utbudet på bostadsmarknaden inte matchar efterfrågan. Främst den rådande bristen på bostäder, men också för de bostäder som alla slåss om i huvudsak är byggda utifrån hur Sverige såg ut för 40–50 år sedan. Dagens familjer och deras behov ser inte lika dana ut som när bostäderna byggdes. Bostadsmarknaden måste följa samhällets utveckling och vara villiga att satsa på nytänkande. I mitt examensarbete vill jag visa på hur ett sådant boende skulle kunna se ut.

Rapporten baseras på den bostadsbrist som råder i Sverige. En alternativ lösning på bostadsbehovet är byggnationer av modullägenheter. Idag byggs det främst mindre modullägenheter riktade till unga vuxna och nyanlända. För att tillgodose fler behov måste flexibiliteten för moduler öka så att de kan formas om och byggas i olika storlekar. Det som besvaras i rapporten är vad modulhus är, vilka variabler det tas hänsyn till vid dimensionering av moduler, samt hur två moduler kan byggas ihop till en enhetlig lägenhet. Teorier är baserade på litteratursökningar, även från tidigare kurser inom byggteknik. Ett studiebesök gjordes på Junior Livings fabrik i Kungsör, för att få en mer konkret bild av modulverksamheten i landet. Resultatet av studien består av en framtagen träväggkonstruktion och en övergång, som ska kunna användas för att koppla samman två enskilda moduler till en gemensam lägenhet. Denna lösning är framtagen för företaget Junior Livings moduler. Stor vikt har lagts på dimensionering och uppbyggnad av väggen samt övergången som sedan illustrerats i datorprogrammet Revit. Materialen har tagits fram för att möta de variabler och krav som ställs på bostadshus i Sverige. U-värde har beräknats och jämförts med originalkonstruktion. Avslutningsvis följer en slutsats där frågeställningar besvarats utifrån den teori, det resultat och den analys som utförts i rapporten.

In the setting of Noetherian or Dedekind domains, we investigate the properties of very flat and contraadjusted modules. These are the modules from the respective classes in the cotorsion pair (VF, CA) generated by the set of all modules of the form R[s−1 ]. Furthermore, we introduce the concept of locally very flat modules and pursue the analogy of their relation to very flat modules and the relation between projective and flat Mittag-Leffler modules. It is shown that for Noetherian domains, the class of all very flat modules is covering, if and only if the class of all locally very flat modules is precovering, if and only if the spectrum of the ring is finite; for domains of cardinality less than 2ω , this is further equivalent to the class of all contraadjusted modules being enveloping.

This thesis is focused on the design of secured audio codec for Asterisk PBX. The first chapter is focused on the basic division of traditional PBX producers and the open source PBX. The second chapter explains the structure of Asterisk PBX and its fundamental difference from a traditional PBX. Asterisk is based on components called modules, therefore the work also deals with the most important modules for operation of exchanges and their division of terms of support and dividing by the type of application and their properties. In this chapter there are described in more detail audio codec A-law and u-law. The third chapter contains simple instructions to get your orientation in the construction of the module for Asterisk PBX and this guide is accompanied by a simple example of creating a module demonstration of his method of translation, commissioning and loaded into Asterisk. Simulation of voice security is in the fourth chapter which provides a description of the proposed security solutions with subsequent implementation in Simulink. This simulation verifies the functionality of the solution proposed security phone call. In the fifth chapter outlines the historical use of encryption techniques primarily mirroring the spectrum and time division signal and comparing them with current modern digital technics. In the last sixth chapter is the actual implementation audio codec module with encryption.

The topic of my diploma thesis is analysis and design proposal of residential module, which will respect functional, constructional, technological, esthetic and ergonomic regularities. The proposal is focused on new solution of shape of the container type residential module.

Traditional all wooden construction joints are currently widely used when historically valuable buildings are being reconstructed. These construction joints are indispensable and irreplaceable in order to maintain cultural heritage for our future generations. They underline the importance of the wooden structures and buildings, which in many cases might have incalculable historical, artistic as well as financial value. However, increased interest brings many challenges and potential risks that need to be taken into account and eliminated by appropriate solution(s). Adequate employment of these wooden joints requires a research-based approaches, which allows proper implementation within existing constructions while maintaining its reliability and safety. Main aim of preset doctoral thesis was to contribute to the development of suitable methods for analyzing mechanical behavior of all wooden construction joints, especially dowel joints, which are mainly used for reconstruction of damaged wooden elements or their parts. For such purposes, various methods (models), based on combination of theoretical, experimental and numerical approaches, has been used. This work was divided to a) basic mechanical tests of solid wood and b) complex finite element analyses of all wooden joints and constructions. Mechanical behavior in tension, compression, bending and shear was tested on small clear specimens made of spruce (Picea abies L. Karst.), beech (Fagus sylvatica L.) and oak (Quercus robur L.). Analyzed species were chosen as a most important historical as well as present European building materials. Mechanical response was captured using cameras in stereovision 3D configuration in order to obtain full-field displacement and strain data sets. Based on obtained data, material characteristics were determined and verified in frame of assembled material models for finite element analyses (FEA). Verified elasto-plastic material models were used as main material inputs for complex FEA for evaluation of mechanical response of joints and constructions subjected to load. Furthermore, material characteristics were used in calculations of mechanical properties of dowel joints. Numerical analyses were done using ANSYS software with parametric design language (APDL). Experimental results of single-shear dowel joints are in agreement with theoretical approach according to European Yield Method (EYM) theory, which was used for determination of joints and fasteners yield strength. FEA proved that assembled elasto-plastic material models can predict the ultimate strength even in complex tasks, and therefore, can be used for more reliable designing of wooden constructions and joints in variety of configurations.

The object of this thesis is an analysis of the possibilities of a wireless communication and a sensor‘s equipment for a four legged walking robot. The thesis is divided into three parts. In the first part there is a particular sale’s exploration in the section of the wireless communication modules. It refers to the differences among technologies in the methods of signal transmission, the technical parameters but also in the communication protocols. The next part of this thesis is focused on sensor’s equipment with the accent on the possibility of use for a four legged walking robot. It contains a short listing of sensors, which are available in the Czech Republic with division based on the type of sensing magnitude. These two parts make a base for the last part where I have chosen suitable communication modules along with sensors and realization wireless data transfer including control and visualization. The result of this thesis is the complete communication block from the user to the robot.

Examensarbetet utfördes på Calmon. Ett Ramverket för instrumenten:DA/AD - Modul, datalogger, klimatkammare och nätaggregat skapades medhjälp av programmet Matlab. Arbetet utfördes med hjälp av programmeringi syfte att kunna genomföra mätningar på föremål i klimatkammaren.Kommandon för styrning av instrumenten implementerades. För att vägledaanvändaren utvecklades en specifikation och ett exempelprogram.

Zugl.: Hamburg, Techn. University, Diss.

Zugl.: Bayreuth, Universiẗat, Diss., 2007.