The horses have been in the care of humans for about 5000-7000 years. But even though the horses have been domesticated and artificial selected for such a long time their natural behaviours and instincts still remains. In the rich countries there are many people who have the opportunity to ride either on their own horses or at riding schools. Many of these people have not grown up on farms and have no experience of handling big animals. This can lead to implications of the horses? welfare.

The student project Elba at KTH started in 2011 and is a project where a battery driven prototype car is developed. The vehicle competes in Eco Shell Marathon in Rotterdam, Holland. In this competition the vehicle that travels a certain distance including several starts and stops with the lowest energy consumption wins. To minimize the consumption is therefore very important, which requires knowledge of the vehicles energy losses.A vehicle's energy losses depends on several factors and can be divided into the powertrain efficiency and the driving resistance. The driving resistance can then be divided in to rolling and air resistance, if smaller losses like vibrations are ignored.

This thesis has been conducted at Saab Bofors Dynamics AB. The purpose was to investigate if a non-linear missile model could be stabilized when the optimal control signal is computed considering constraints on the control input. This is particularly interesting because the missile is controlled with rudders that have physical bounds. This strategy is called Model Predictive Control. Simulations are conducted to compare this strategy with others; firstly simulations with step responses and secondly simulations when the missile is supposed to hit a moving target.

At Sandvik Materials Technology, Argon gas is used as furnace atmosphere when heattreating hot rolled wire. Upon heating chromium steel wire, a rich oxidelayer forms on the wire surface. The abstract of this masters thesis is to enhance the understanding of the constitution of the oxidelayers and the influence of the furnace atmosphere. This will be achieved by performing a number of annealing experiments on laboratory level. Also, the aim is to understand the chemical reactions and physical mecanisms controlling the pickling process.

In this thesis a rural network in Norrbotten, Sweden, has been to designed and planned with the purpose of improving distribution reliability by exchanging existing overhead lines with underground cables. General network design considerations are discussed as well as the ones for the specific low voltage grid. During the design phase the maximum power of domestic consumers has been estimated using Velander?s method. Currents, voltage drop and impedance of the network have been calculated and fuse operation and selectivity has been considered.

Since the early 1940s in Sweden, subsidies have been a recurring feature in housing politics.Throughout history, these have been used as a management measure to control theconstruction of housing and to promote the Swedish welfare state. The political parties aretoday disagreeing on how much responsibility the state should carry for citizens housing. Tosolve the conflict, the dwelling has to be defined. Is the dwelling to be considered a socialright, like education and healthcare or is the dwelling to be considered a product for the freemarket, driven by supply and demand?The positive population growth in Stockholm has lead to an increased demand for dwellings.The supply of dwellings has not been growing at the same rate, which has implied higherhousing prices and longer wait for rented apartments.

This thesis of 15 hp has been implemented at Halmstad University, incollaboration with Saab Dynamics in Linköping. Saab Dynamics is a companyoperating in the defence industry where competition is tough. This necessitatesnew ways to increase efficiency in the company, which is the basis for this thesis.Saab Dynamics wants to introduce simulation driven design. Since SaabDynamics engineers have little experience of simulation, required a usermethodology with clear guidelines. Due to lack of time, they chose to assign thetask to students, which resulted in this thesis.The aim of the thesis is to develop a methodology in mechanical design, wherethe designer uses the FE analysis early in the design process to develop thestructures' mechanical properties.

The purpose of this study was to illustrate the effects of music in pre-, peri-, and postoperative care. This study is a systematic literature study based on 22 scientific articles with quantitative methods. Music is an alternative treatment used in nursing care. Nurses could as a complement to routine pre-, peri-, and postoperative nursing have music interventions in mind, because an operation involves anxiety, fear and pain for many patients. The result of the study shows that music can reduce patients? anxiety, pain and improving their wellbeing and recovery.

Syftet med vår rapport är att försöka ge en djupare inblick i ett av polisens mindre kända verksamhetsområden. Vi har valt att arbeta med de regionala insatsgrupperna både för att vi själva vill få ökade kunskaper om deras verksamhet samt för att undersöka hur denna polisiära resurs är organiserad i polismyndigheten. Rapporten försöker att analysera hur de regionala insatsgrupperna skiljer sig åt beträffande arbetsformer, utbildning och organisation i Örebros respektive Västerbottens polismyndighet. De fakta och uppgifter som rapporten bygger på har inhämtats från litteratur och genom intervjuer. Det vi har kommit fram till är att de regionala insatsgrupperna skiljer sig signifikant från varandra och en likriktning av verksamheten genom nationellt fastställda direktiv skulle kunna kompetenssäkra insatsgruppernas verksamhet..

Many interactive products constructed today is not produced towards a specific targetaudience and how they will interact with the product. This master's thesis follows the designprocess in the development of the Let's Walk webapplication. In the designprocess has users of the webapplikation been identified, prototypes developed and an interactive version has been evaluated. The Let's Walk webapplication is a fully working system used to administrate Let's Walk, an exercise competition between companies. Experts and users have been involved to evaluate the Let's walk high-fidelity webapplication prototype.

The little steel industrial community Hofors is situated in Gästrikland on the border to Dalarna and its population is decreasing every year. The biggest housing operator is in a place where they must tear down a lot of buildings because they do not have enough tenants. But what do people really want in an apartment and in the surroundings? What is needed to make it attractive? That is something that this study will discuss and in the end it will lead to a proposal of an area that is suitable for a new housing and a few proposals to make the existing apartments more attractive..

The industrialization of construction is increasing in Sweden which leads to higher demands of prefabricated components and cells. But what does the business of construction think of the industrialized business and what can be done in order to decrease faults and errors with these products? Today we have many manufacturers who have different technical solutions which might lead to difficulties when assembling components and cells at the building site. But by trying to make a more opened market, with possibly standardized connections details and improving the communication between the different participants, the prefabricated components and cells can be made and assembled with less errors. This is something that needs to be done in order to establish a more secure business, and especially when working with new companies and methods, when using industrialized products..

This study, which was conducted in Sweden, was based on four qualitative semi-structured interviews. The aim of this study was to create an understanding of how a municipality designs the sanction for youth offenders called ?youth service? based on the law that establishes the existence of such a sentence. We interviewed social workers that work at the department of youth service in the municipality of Gothenburg, who exclusively deal with youth offenders? sentenced to youth service as their job assignment.

Heart failure is a condition where the heart is incapable of providing adequate blood supply to different organs in the body. The underlying causes of heart failure is some kind of disorder in the heart function, and require careful diagnostics. The basic symptoms that arise from heart failure is difficulty in breathing, that aggravate when lying down, and fatigue. The patients? symptoms and impaired quality of life can be in different stages depending on the severity of the heart failure.

Our purposes with this essay was to increase our knowledge about, and try to describe, how it happens when people get involved in gambling and becomes addictive to gambling, and what the way out of a gambling addiction could look like. Our framing of the question was: - How does gambling begin? - How does gambling evolve to an addiction and how does it go forward from there? - How do you leave a gambling addiction? Is there an experience of turning points? We did qualitative interviews with six former gamblers. Our main conclusions were that the initiation to gambling can be very different and still lead to similar effects. There seems to be a strong enticement surrounding the attributes of gambling, which are connected to developing a gambling addiction. The experiences of turning points were very palpable.