This degree project is an investigation of solar cells and their ability to deliver electric power as well as reducing the need for cooling. The main object of interest is a BASE-X shelter. The shelter is purchased by the Swedish Defence Materiel Administration, FMV to be used for command and camp in the new force called Nordic Battlegroup, NBG. The demand on the equipment is firstly that it should have a small weight to be easy to transport and handle and secondly to be easy to bring up fast. Therefore the choice of solar cell technology fell on thin film cells.

Nikotin är världens tredje mest använda drog efter koffein och alkohol. Rökning utgör en av de absolut främsta orsakerna till en för tidig död i hela världen. Minst 10 000 svenskar dör varje år i förtid på grund av rökning. Syftet med denna studie var att jämföra skillnaden i lungfunktion, muskelstyrka och arbetsförmåga mellan rökare och icke-rökare. Till studien rekryterades totalt 20 frivilliga försökspersoner i åldrarna 27-56 år varav 10 var rökare och 10 icke-rökare.

This report is the result of a sub-project of a larger project to create a platform formathematical education. The sub-project focuses on authentication with associ-ated security, where security is emphasized. The project environment is Java EE 6where GlassFish 4.0 acts as the server. The project has been divided into threeparts; password encryption, Java EE authentication and brute force attack. Thepassword encryption part focuses on examining different hash functions executionspeed, the result shows that none of the examined hash algorithms is suitable fordirect use.

This report reflects an examination work performed for Getrag All Wheel Drive AB during the spring of 2005. Among the companies range of products there exists some concern regarding the amount of clamping force and friction on bolted joints caused by the assembly torque.The aim of this project has been to determine if there is a simple way in which to identify and then practically apply testing methods for clamping force and friction through utilization of existing testing equipment.Three separate methods of clamping force and friction determination have been tested in rear drive unit, RDU, at a 30 Nm assembly torque. A fourth and final method, screw elongation with ultrasound, has been used as reference. The methods are:?Torque-Tension test.?Screw elongation with micrometer.?Joint stiffness test.?Screw elongation with ultra sound for reference.The results from tests can be viewed in table below.MethodTorque-TensionMicrometerCs=318 kN/mm Assembled with torque wrenchMicrometerCs=318 kN/mm Assembled on lineUltra-soundCS=311 kN/mm Ultra- soundCS=318 kN/mm Joint stiffnessTheoreticalClamping force-21,8 kN17,6 kN17,3 kN17,6 kN17,1 kN17,3 kNFriction-0,110,1470,1530,1470,1520,149.

In this study, the pre-tension force in an insert screw connection are examined in order to establish a greater understanding of the system and to facilitate the process of making new metal cutting tools. Certain especially significant design variables such as the offset, the length of the contact thread and the shank length above the threaded hole, are selected to be closely examined. A comparison of the influence on the pre-tension force between threaded holes made with a worn, versus new, threading tool is also involved in the experiment. The study is limited to handling the screw sizes M2,5 and M3,5. The results show that a regression model, with good approximation, can be fitted to the measured values.

I denna uppsats undersöker författaren kapitalstrukturens i de svenska oljebolagen. Syftet med uppsatsen är att undersöka är hur kapitalstrukturen utvecklats under perioden 2001 till 2009 i de svenska oljebolagen, vilka metoder för kapitalanskaffning som använts under perioden, om bolagsrisken påverkar kapitalstrukturen, samt hur oljebolagen förhåller sig till Peak Oil och alternativabränslen och energikällor.Följande slutsatser kan dras från undersökningen: Mellan 2001 till 2009 har det egna kapitalet i bolagen legat i en stigandetrend, medan de långfristiga lånen varit i en nedåtgående trend. Bolagen har finansierat sin verksamhet med minst 50% eget kapital under perioden.? Bolagen har mest använt sig av nyemissioner när de tagit in nytt kapital, följt av olika former av lån och slutligen konvertibellån. En statistisk undersökning har visat att risk påverkar eget kapital. När risken ökar, så ökar det egna kapitalet.

Syftet med uppsatsen är att jämföra hur grunderna för ansvarsfrihet från skadestånd vid fullgörelsehinder är uppbyggda i olika normsystem för att utifrån en komparativ analys komma fram till vilket system som är bäst tillämpbart i en situation liknande den i scenariot med den försenade vaccinleveransen som jag beskrivit i inledningen till uppsatsen.De regler jag valt att studera för en komparativ jämförelse är kontrollansvaret i den svenska köplagen 27 § och CISG art. 79, modellagarna PECL och Unidroit Principles regler om force majeure och hardship, standardklausulerna i ICC 2003 Force Majeure and Hardship Clauses samt den engelska läran om frustration. Att jag valt att studera teorin om hardship beror på att teorin är starkt sammankopplad till reglerna om force majeure och kontrollansvar. Jag har valt PECL och UNIDROIT som exempel på hur modellagar kan vara upplagda. Fler modellagar och principer finns.

Tidigare studier har visat en korrelation mellan muskelgrupper, särskilt gällande styrka mellan olika muskelgrupper i samma extremitet. Syftet med den här studien var att se om maximal isokinetisk muskelstyrka i låret korrelerar med maximal isometrisk handgreppstyrka hos friska individer >60 år. Exklusionskriterier var muskuloskeletala besvär, hjärt? kärlsjukdom, KOL, RA, Gonartros eller pågående infektion. Isokinetisk benstyrka mättes på 25 försökspersoner >60 år i Biodex System 3 och isometrisk handgreppstyrka mättes med Grip-D.

This thesis provides a comparison of the old Planning and Building act (PBA) from 1987 with the new PBA, which entered into force in May 2011. The essay consists of a descriptive part that presents the regulation of both laws. The new PBA consists of several differences compared to previous regulation. This thesis will, however, primarily be centred around the regulation regarding building permit appeals and the possibility of building permit, to gain legal force.In the old PBL, there were no regulations that result in a building permit decision could be made effective. Instead, a building permit could, long after the decision had been made, be over-challenged.

During the work at Gateway Security AB in Motala I began examining available antenna models to get a wider perspective, this have given knowledge of their structure, and an understanding of their function. All my necessary fact is based on my observations and notes of these measurings. New antenna models, and available models were examined where measurements at different heights and different distances on the antenna were performed with the help of an oscilloscope and a measure probe, peak ? to - peak was brought on the signal. The measurements are presented in a line diagram.

This thesis was performed at Vendig AB which is a company that develops and sells products such as belt scrapers for conveyor. The thesis is divided into two parts, one part where it´s investigated which tension force is required to tighten Vendig AB´s scraper Hampus against the belt in a correct way. The second part is called mechanical design and here a new and more compact tension device is developed.Field studies has been conducted at a couple of Vendig AB´s costumers to get a knowledge base about how Vendig AB´s products are used, how they function and the environment they operate in. During one of the field studies the force between the scraper and the belt was measured. The result from the measurements, together with a report from LKAB [1], were evaluated and summarized in a table.

24 mars 1999 påbörjar NATO för första gången i organisationens historia krigshandlingar med luftstridskrafter. Detta mot ett Serbien med Slobodan Milosevic i spetsen som utförde etniska rensningar på kosovoalbaner i Kosovo. Denna konflikt kom att från NATOs håll kallas operation Allied Force. Tre år innan denna konflikt urartade släppte Dr. Robert A.

The thesis is an examination of the methods that are appropriate and long-term choice to obtain clamping force and secure screw joints in production. The employer, Scania CV AB, transmission manufactures axle gears to all trucks produced in Södertälje. One of the most common assembly elements is screw joints, where the clamping force is essential to achieve a secure joint. Current methods to secure the joint is due much of the friction effect and is an indirect method to measure the clamping force. The clampforce accuracy becomes more widely with torque angle control.

This study draws from Zygmunt Bauman´s theory that a governmental policy of values can reduce the personal responsibility and moral choices for employees, to focus only on maintaining the government?s internal rules and regulations. The apparent risk with this type of moral attenuation is that the employee is deprived of the possibility to react morally on conduct of the government?s external misuse of power. In this study, this theory is connected to the Swedish Armed Forces? policy of values, as these values do not include a critical standpoint for officers and soldiers.

Heavy duty vehicles often have problems with traction during the winter periods. For vehicles that can lift tag axles it is possible to increase the normal force on the driven axle by lifting one or more tag axles, this will then increase the propulsive force of friction. This however increases wear on both road and vehicle. A possibility to reduce the wear while achieving nearly equivalent traction compared to lifted tag axles is to allow the vehicle to regulate the normal force by lowering the pressure in the air suspension associated with the tag axles or by the lifting of these axles. The vehicle would then by itself be able to set just the right amount of normal force on the drive wheels to avoid unnecessarily high normal forces while maintaining sufficient traction.The purpose of the report is to find out which parameters affect heavy duty vehicles when driving on slippery slopes and how traction can be improved.