This thesis work has been performed at the department of diagnosis and dependability at Volvo Car Company, Torslanda. The background of this project is based on interest in ascertaining how different factors possibly can affect a diagnosis method, which has been developed to find leaks in the fuel tank and evaporation system. According to the OBD II requirements leaks with an orifice diameter larger or equal to 0,5 mm, must be detected. The idea of the diagnosis method is to create an over pressure in the system with an air-pump. The current through the pump is measured and correlates to the power consumed by the pump.

Dysfunction of the upper respiratory tract is a common cause of impaired performance and intolerance to exercise in racehorses and include several upper airway obstructions. The ones termed dynamic obstructions are primarily seen during physical exertion and affected horses often appear to be normal during endoscope examination at rest. The correlation between diagnoses made at rest respectively exercise is low, suggesting that an examination at rest alone is likely to be insufficient. The upper respiratory tract is exposed to great differences in pressure throughout the respiratory cycle; variations that are further altered during strenuous exercise and affect the rigidity of upper airway structures. In presence of great fluctuations in pressure, stability is achieved through coordinated and synchronous neuromuscular mechanisms. Due to nerve damage or anatomical abnormalities, these functions may be disrupted and further cause a dynamic collapse of the upper respiratory tract when pressure changes become too severe. The etiology behind the neuromuscular dysfunction is not yet fully understood.

This report contains a degree project made by the mechanical engineering students Lennart Andersson and Daniel Jansson. The project has performed in assignment by SOMAS Valves AB in Säffle. SOMAS are leading in development on control and on/off valves. To maintain this position they always want to improve their products. One way in this development is valves that are more tightened.The purpose with our project was to investigate another seat design on a HiCo (High Cobalt Alloy) seat to a SKV 150 PN 25 valve and compare this to an original HiCo seat.By modifying the seat on a ball valve we want to achieve a valve that leaks lesser then a valve whit original seat.

By understanding which factors that affect individuals´ will to share knowledge with others within an organization, companies can successfully develop a knowledge-based culture by influencing individuals´ attitudes and behaviour concerning knowledge sharing. Several researchers claim that intrinsic motivational factors can consistently facilitate knowledge sharing between individuals within an organization. Other researchers also assert that extrinsic motivational factors, such as reward systems, might affect individuals? motivation to share knowledge. However, extrinsic motivational factors´ impact on knowledge sharing is a relatively unexplored field and more empirical studies are sought after.

An automatic control system for calibration of pressure indicators has been constructed. This control system can be used as a complement to the calibration system located at AerotechTelub, division MainPartner, in Linköping. The calibration system used today contains some not wanted pressure changes, which is compensated by hand today. The new system presented in this report automates the calibrating process and simplifies the calibration. Suitable hardware as motor, controls card and so on have been found and software in the form of Visual Basic program has been developed.

The objectives of this research were to determine whether the natural rattan resources in Sulawesi, Indonesia can cope with the strongly increased harvesting pressure that has occurred over the last centuries. I was furthermore looking for patterns in the rattan population dynamics that might give a hint on how the harvesting system could be improved to ensure a maximum sustainable yield. To answer these questions, I developed an individual-based model to analyse the dynamics of rattan growth in connection with rattan harvests by locals to identify sustainable levels of rattan harvests around villages in Sulawesi, Indonesia. Scenarios with different harvesting intensities were run to compare the change in harvest amount. For a given harvesting pressure, scenarios with a high number of harvesters and a low harvesting frequency had the same effect as scenarios with high harvesting frequencies and a low number of harvesters.

In Uppsala CHP Plant, there are six pressure reducing valves to reduce the pressure from 15 to 3 bars, before six absorption heat pumps. During the process the energy is conserved but losses occur in form of exergy. The aim of this thesis is to reduce the losses of exergy. This can be done by letting turbines replace the pressure reducing valves.In this thesis an investigation has been done of the conditions today, the conditions after the change from pressure reducing valves to turbines and a comparison of three different types of turbine solutions. The three examined solutions are one turbine, several helical screw expanders and several small turbines in parallel with asynchronous generators.The six absorption heat pumps have been divided into two groups; one group of four and one group of two absorption heat pumps.

Equine metabolic syndrome (EMS) it?s a clinical condition that includes obesity, regional adiposity, insulin resistance (IR) and laminitis. A similar syndrome exists in human medi-cine, the metabolic syndrome (MS), were systemic hypertension also is a prominent fea-ture. The systemic hypertension seen in humans with MS is partly due to a vascular endo-thelial dysfunction with an enhanced endothelin-1 (ET-1) mediated vasoconstriction. There are indications that systemic hypertension might be a feature in EMS as well but if ET-1 is involved in the development of the systemic hypertension in horses is not known.

Stump treatment today requires large quantities of clean water mixed with the protective product Rotstop, to fully cover the stump surface. In order to reduce the water consumption without reducing the coverage of the stump surface, the pressure in the stump treatment device can be increased. Therefore, the Phlebiopsis gigantea (Fr.) Jül. suspension used as a biological control agent to prevent Heterobasidion annosum (Fr.) Bref. infection was pressure-tested.

AbstractConsider a ?uid being heated from below. The heating leads to an upward convectiveforce that is counteracted by the viscous forces of the ?uid. If the convectiveforce is large enough in comparison to the viscous forces the ?uid will be put in anunstable state.

AbstractConsider a ?uid being heated from below. The heating leads to an upward convectiveforce that is counteracted by the viscous forces of the ?uid. If the convectiveforce is large enough in comparison to the viscous forces the ?uid will be put in anunstable state.

Den tredje och fjärde oktober 1993 sköt somaliska rebeller ner två amerikanska Black Hawk-helikoptrar i Mogadishu, Somalia. Dels på grund av ett bristande doktrinärt agerande resulterade det i en 14 timmar lång strid om att överhuvudtaget överleva och många skadades eller omkom. Inte långt därefter lämnade FN och USA Somalia och insatsen sågs som ett militärt misslyckande. Insatsen i Somalia har påverkat amerikanarnas syn på utrikespolitik och den visar tydliga exempel på den komplexitet som counterinsurgency-operationer för med sig.Uppsatsen är en teoriprövande fallstudie där David Kilcullens teorier om upprorsbekämpning prövas på Specialförbandsstyrkan Task Force Rangers insats i Mogadishu, Somalia. Uppsatsen syftar inte till att pröva huruvida Kilcullens teorier fungerar eller ej, utan till att pröva hur och i vilken utsträckning Task Force Rangers medel och metoder överensstämmer med vad Kilcullen förespråkar.Resultatet av denna studie visar att förekomsten av Kilcullens teorier i vissa fall överensstämmer men överlag är väldigt få.

Towards the end of the 1960s, the credit financed purchase was well established in Sweden. The Swedish households were able to purchase goods, which had been considered unnecessary, or even luxurious, in the past. On the other hand, effective means to handle the increasing amount of debt and potential debtors were introduced; credit rating was registered, trade with insecure claims increased and if debtors could not fulfil their obligations, the creditors often used harsh or undue methods. By introducing Inkassolagen (1974:182), the legislator hoped to regulate the debt recovery process and ensure the fair treatment of debtors. The legislator also introduced liability for damages caused by a creditor in the collection process.

Equestrian sports and the interest in horses have existed for hundreds of years. It is only in the last thirty years the technological development have enabled closer studies of equine locomotion. The production of both soft- and hardware that manages to capture and analyze the fast movement of the horse has resulted in a large increase in locomotion research. Even though the interest in horses and the different disciplines they compete in is great, there is a small understanding in how the rider influences the movement of the horse in different types of training. There are several studies available where horses moving freely without the influence of a rider have been studied. What happens with locomotion and ground reaction forces when a rider and equipment are added is not well studied. The objective of this study was to investigate if there are any differences in the ground reaction forces between sitting and rising trot. The study contained seven horses. Six Grand Prix dressage horses and one dressage horse competing at intermediate level.

Background: For the knowledge company the employees? competencies and knowledge are important assets. According to this, there has been a lot discussion about how to best take advantage of the employees? knowledge and create organizational learning. This organizational learning can be difficult to create due to the individuals? own goals and the fast changes in today?s society.