A Swedish electronics company wants to make the cooling of one of their electronic components more efficient. They propose that a retrofit liquid cooler is the way to achieve this goal. The current air cooling has high energy cost due to the high amount of power needed to power fans and heat exchangers. Using high volumes of air for cooling also leads to noise pollution. The conversion from air to liquid cooling would possibly make the operation of the electronics more cost efficient and less noisy.The purpose of this project is to theoretically evaluate different concepts of drawing the heat generated by the electronic component in to a fluid, using numerical calculations in Matlab and FEM simulations in ANSYS.

Opcon Powerbox is a product developed by Opcon together with the underlying company SRM (Svenska Rotor Maskiner) where surplus heat from the industry is used through an Organic Rankine Cycle (ORC)?process to produce electricity. An ORC-process is a thermodynamic circle process in which a refrigerant is used as the working fluid. The refrigerant makes it possible for the circle process to operate at lower temperatures than the conventional Rankine process.In this master?s thesis a data analysis software for the Opcon Powerbox has been developed in which measurement data is retrieved and handled from the Opcon Powerbox.

A method for equine intra oral radiology has been tested. In the study, both a digital system with an intraoral sensor connected to a laptop and a system utilizing image plates and digital developing was tested, initially on cadaver sculls and finally on sedated horses. The digital sensor was not considered viable for this purpose, while the system with image plates and digital developing worked very well. Two different techniques, i.e. parallel and bisectris, are suggested for the best visualization of different parts of the teeth. Intra carious injections of Mixobar oesophaghus contrast fluid was found useful when evaluating the extent of carious lesions. Compared to extra oral radiology, the new method had several advantages and can be used both in clinic and field practices..

Chiari type I malformation is a condition in humans characterized by a small posterior cranial fossa, downward herniation of the cerebellar tonsils, foramen magnum overcrowding and disturbances of cerebrospinal fluid dynamics. Syringohydromyelia is often seen in patients with Chiari type I malformation. Syringohydromyelia is characterized by fluid-filled cavities in the spinal cord. This causes damage to the nervous tissue in the spinal cord. In recent years, a condition similar to Chiari type I malformation has been recognized in dogs. It has mostly been seen in Cavalier King Charles spaniels (CKCS). The condition seen in dogs is usually called occipital bone hypoplasia. The aim of the study was to examine whether there is a difference in the shape of the caudal fossa between CKCS, small bred dogs with a similar head shape and dogs with a normal head shape and if occipital bone hypoplasia is related to a head shape with a steep back of the head. Other aims of the study were to examine the crowding of nervous tissue in the foramen magnum in each breed group, the extent of syringohydromyelia and to what extent the malformation had caused neurological signs. Sculls from dogs on autopsy were divided in halves and the position of the cerebellum compared to the level of the foramen magnum was studied.

This master thesis holds a modelling in Simulink for a physical model of a main battletank tower, a three-phase induction motor and some mechanics. The aim of this work is to connect an earlier project at AerotechTelub, named StabSim to another called Eldris. In StabSim it has been made a Simulink model of the align and stabilisation system in a main battle tank 122 and in Eldris it has been build a physical model of a main battle tank tower. In this thesis the models that differs between Eldris and a real tower is changed in StabSim, and the parts that only exist in Eldris is added, for example a torque generating system which purpose is to make the model to behave like a real tower in control application, although it only has half the inertia as a real tower. The thesis even includes proposing a calculation of the torque that the torque generating system will actuate at the model..

This Thesis is performed in cooperation with Kalmar Industries in Lidhult, Sweden. Theprojects main purpose was to develop a draft design of a test equipment. The equipmentwill simulate and valuate the drive-train and brakes at Kalmar?s bigger forklifts.The equipment will be designed so the wheels of the forklift are placed on two rollers;these absorb and affect the forklifts brake- and driving force. With this characteristic anup- and downhill can be simulated.

?Motivation is the desire within a person causing that person to act? (Mathis & Jackson, 2009, p. 24). Motivation is what makes people act. Lately a tool to create more motivation called Gamification has been more and more popular to use. This study is focusing on the subject motivation and also how gamification can be used as a tool to get more of that.

In order to understand user behaviour and navigation patterns, user logging is today widely used in analysis and development of user interfaces. These user logs tend to be quite many and can contain a lot of different data. A big issue is how to process and display this data in a perspicuous way to the stakeholder. This study is about how to develop a prototype to handle this issue. It was solved by various methods from human-computer interaction.

Many studies have pointed out that generosity depends on different things like gender, age and nationality. We wanted to see if predetermined factors like genetics also had an effect on the intention of generosity. There is a ratio between the index finger (2D) and ring finger (4D) that is determined by the levels of testosterone in the amniotic fluid and that have had some significant effect on personality attributes like musical and leadership skills. We wanted to see if that ratio had any effect on the intention of generosity. We experimentally examined a group of priest student and two groups of young handball players and let the groups answer a survey that included a sort of dictator game and we photo copied their hands to get their 2D:4D-ratio.

This study is primarily an account of my examination work in archival science which took place in the archive of Margareta Böttiger, the state epidemiologist at the Swedish Institute for Communicable Disease Control Stockholm. The records are from Böttigers period of work, mainly divided into three parts, polio, HIVS/AIDS and vaccination. Of these I have focused on polio with was the area she got renowned for. Moreover, owing to the uniqueness of the material this study has focused on the properties of the archive as a working-life archive which I propose as a special type of personal archive with unique attributes. To summarize, a working-life archive has in comparison with other personal archives a more fluid process of archiving where the profession is important, not the personal production of records.

The aim of this study is to examine the possibilities to use gamification to reach thepolitical goals for the transportation system in the Stockholm region. The study has aninterdisciplinary approach and is based around two main building blocks: gamificationand the transportation system in the Stockholm region. The first part examinesgamification. This includes contemporary use, debate, academic definition and aninvestigation of how gamified applications should be developed. One of the mainfindings is a suggestion that gamification should be seen as a process rather that a setof predefined game mechanics that can be applied to any activity.

The purpose of the study was to review the current veterinary literature regarding gastric dilatation and volvulus (GDV) considering pathophysiology and treatment, and to evaluate the operative technique (incisional gastropexy) used during the years 2005 and 2006 at the University Animal Hospital (Universitetsdjursjukhuset), SLU, Uppsala, Sweden. GDV has a complicated pathophysiology which foremost effects the circulatory system. Progress is often acute and it is not unusual that patients are affected with shock. The initial treatment targets to alleviate the shock by fluid therapy and decompression of the stomach. There is a high risk of recurrence in the long term perspective unless the stomach is surgically fixated by gastropexy. The study describes two different techniques for gastropexy; incisional gastropexy, and funduspexy. Long term complications were rare among the patients that were treated surgically, while about half out of the eighteen dogs that undergo surgery do experience complications of various severity in the short term..

Turning solar collectors, heliostats, is certainly not a new idea but has been explored for at least two decades. Projects on this subject have resulted in more or less realistic constructions, in a commercial point of view. Far too often the technical goals have had higher priority than the economical, which has resulted in a few constructions having the ability to compete with conventional, fix solar collectors. The economical issues have been given high priority in this project, without decreasing the demands on reliability. The system has been given the following mechanical and electronical properties: One-axis movement, fix heat carrying fluid system, microcomputer controlled movement and automatic protection from overheating.

On average half of the sows in Swedish piglet producing herds are culledannually. A significant portion of the sows are euthanized because of lameness orparalysis. Young sows and gilts are overrepresented in the category of animals,culled due to injuries in the musculoskeletal system. These injuries cause pain tothe animals. Early culling of sows/gilts also have economical consequences forthe producers.

Denna undersökning behandlar spel i kontext till lärande och matematik. Genom att gestalta ett spel undersökte vi, författare hur olika designval kunde påverka lärande. Målet var att spelare skulle lära sig genom situationsbaserat lärande och där genom få möjlighet att överföra sin kunskap till sitt vardagsliv. Undersökningen hade sin utgångspunkt i ANT (actor-network theory) som användes som metodologi för att analysera och reflektera över de val som gjordes. MDA (Mechanics Dynamics Aesthetics) användes som ett ramverk för att utveckla själva gestaltningen.