The use of silicon carbide (SiC) as a base material in power electronics has manyadvantages, including high breakdown voltage and excellent temperature endurance.However, the packaging of such electronics presents major challenges and there is aneed for packaging that can operate in higher temperature. The purpose of this thesishas been to develop a test method and verify the functionality of SiC powertransistors prototypes with a new packaging technique developed by Swerea IVF AB.It includes setting up an electrical test-bed for power and high temperature cyclingand analysis of the results. Even though test confirmed functionality after thepackaging process, (at room temperature) the performance seemed to have been reduced. This could be a result of the measurement setup and the packaging process.In higher temperature the transistors failed to operate longer than a couple ofminutes which showed the weaknesses in the design and the challenges with this typeof packaging..

Detta är en kandidatuppsats som presenterar en analys av ett spelföretag och dess verksamhet med fokus på gruppdynamik, ledarskap och projektledning. Uppsatsen är indelad i tre delar, analys, genomförande och resultat. Analys delen beskriver följande verksamhetsområden; hur gruppen anställda på Black Drop Studios agerar i samspelet med varandra, vilken typ av ledarskap som bedrivs, hur produktionen är strukturerad, vilka projektledningsverktyg och metoder som används. Genomförande delen beskriver olika åtgärder för dessa verksamhetsområden, för att göra dessa mer effektiva. Resultat delen beskriver vilka åtgärder som införts samt vilka som planerade att genomföras. Sammanfattningsvis har gruppen utvecklats till en mer högpresterande grupp med en större insikt i vad som påverkar deras sätt att fungera som ett team och deras behov ledarskap, verktyg och arbetsmetoder inför framtida projekt och utmaningar..

SammanfattningInledning: Specialidrott har funnits i skolvärlden sedan 70-talet och har lett till att många ungdomar har kunnat kombinera skola och elitidrottssatsning vid sidan om varandra. Det har skapats RIG (riksidrottsgymnasier) och ämnet specialidrott har lagts till som en kurs på gymnasieskolan. Målet med RIG var att göra det möjligt för talangfulla ungdomar att kombinera elitidrott med gymnasiestudier då gymnasietiden anses vara en brytpunkt för när elitsatsningen börjar. Att gå på ett RIG innebär även att få träna väldigt mycket och tävla med många av de bästa i samma åldersgrupper. RIG-systemet har producerat många svenska elitidrottare i olika idrotter.

This paper describes a method for wireless energy transfer via near-field electromagnetic inductionthat is inexpensive, simple and can be applied to almost any type of system, regardless of size andenergy demands.The method uses a primary unit consisting of an oscillator, amplifier and inductive coil thattransfers energy to a secondary unit consisting of a coil, rectifier and voltage regulator. Two typesof oscillators and several amplifier designs were realized and evaluated together with a multitudeof flat coils of both monofilar and bifilar type.The results show that it is important to use an oscillator whose frequency is dependent on theinductance of the connected transmission coil, such as the Colpitts oscillator. This is preferable toan oscillator with a preset frequency, such as a Schmitt-trigger oscillator..

Stabilization of subgrade is an internationally common technique to improve the characteristics of a soft soil. Improving the stiffness and bearing capacity of the subgrade enables the pavement to be designed with reduced depths of subbase and basecourse aggregates. This makes the stabilization technique both economically and environmentally interesting. Both natural and stabilized soils have high inherent property variability that should be considered when the characteristic value is derived. By analyzing the spatial variability in stabilized and natural subgrades it is possible get the parameters needed for reliability?based modeling of soil properties.

Jag har under mitt kandidatarbete gjort en praktisk studie av producentrollen på det Karlshamnsbaserade spelföretaget Black Drop Studios. I denna slutreflektion går jag igenom min egen process under utvecklingen av en spelprototyp av företagets primära produkt, plattforms-racing spelet Boingo. Under produktionen har jag som producent verkat för att effektivisera verksamheten och agerat som en resurs för teamet. Jag har haft dagliga möten och individuella samtal med medlemmarna i gruppen, samt kontinuerligt övervakat och utvärderat arbetsflödet genom det web-baserade projektledningsverktyget Redmine. Utöver min roll som producent har jag även arbetat med marknadsföring och presentation av den färdiga produkten på Game Developers Conference i San Francisco.

This is an examination of the Swedish unemployment insurance system and the effects it has on the Swedish long-term unemployment. A search model is explained to give an understanding to the incentives of the unemployed. Different mechanisms that create unemployment and that could create long-term unemployment are investigated, but primarily the unemployment insurance is in focus.The Swedish unemployment insurance has undergone several changes the last fifteen years that have improved its efficiency. The introduction of a finite duration of unemployment insurance entitlement was an important step and so was the decrease in the replacement ratio. Even so, I assess that there is still room for improvements of the incentives to search for work among the unemployed.

The structure of the thesis is based on opportunities to attract businesses to the region, the need of establishments in the region and benchmarking with establishment strategies of other cluster initiatives. The identified opportunities are the local business relationship with ABB, the prerequisites of life quality in the region and the availability of financial support. Further on has a number of opportunities to be developed been identified; diversification of the existing businesses, an expansion of the cooperation with universities and to simplify the contact with local authorities. Challenges that HVV is facing is: creating a more dynamic labor market, secure long-term labor supply, spread the image of the brand HVV and finally putting HVVs geographic scope. Two of the identified needs of establishments are strategically important: to establish a third-party logistician and commercializing systems for distributed generation and energy storage.

ABB Surge Arrestors in Ludvika have for a long time had a problem to keep the moisture at a steady state in the production of their ZnO-powder, that is used to produce varistors.Some black-box models of the spray drying process have been designed and evaluated to find a solution for the problem. After evaluating the collected data it has been found that variations in the supply voltage causes control difficulties for the operator. A cascade control system was designed, consisting of three PI control loops designed with lambda tuning. The disturbance in the supply voltagewas used as a feed forward in the control system.At the end of the project the control system was installed, and tests were made to verify the functionality of the regulator. It was shown that most of the variations in the moisture of the powder could be eliminated using small resources, through purchase of a process controller and four power meters.

During 2004 to 2008, The United States Marine Corps (USMC) executed counterinsurgency operations in Anbar Province with the purpose to stabilize one of the most violent areas in Iraq. The Marine Corps successfully managed to suppress the insurgency as violence dropped dramatically in late 2007. What did the marines do in order to suppress the insurgency? Why did violence drop in the province? The Marine Corps approach and procedures have been examined earlier through theories of organizational learning and adaptation. However, there is an absence of studies aiming to analyse the Marine Corps? counterinsurgency approach through the analytical lens of counterinsurgency theory.

Girls with foreign background is the group that is most left outside the sports movement in Sweden and the ones with the least sports habit. Sports assumed to provide an arena for integration that these girls are being left outside from. The Swedish sports movement has adapted the conditions for them as a way to encourage them to participate in sports, but there are still lots of girls with foreign background that stands outside the sports movement. One input that the Swedish National Association has done for children and young adults is to adopt the Drive-in-sport, which can work as an entrance to the sports movement. The aim of the study is therefore to investigate which barriers, motivators and requests girls in Sweden with foreign background have to participate in Drive-in-sports.

A large part of the interactions between horse and rider during horseback riding takes place through the reins and the bit and devices for measuring the tension on the reins, rein tension meters, has fairly recently been developed. To safeguard the welfare of the ridden horse riders need to be aware of the rein tension they apply and actively work to decrease it. Furthermore, there is a need to develop the study of rein tension through new techniques and refined analysis procedures. A good-quality rein tension meter should be small in size, sensitive, durable and as accurate for light rein tension as for strong forces. Rein tension meters used in research on horse and rider interaction commonly depend on strain gauge technique for generating rein tension data.

Marknaden för industriella distributörer har upplevt stora förändringar under de senaste decennierna. Trots att industribolag nu har större möjligheter att sälja direkt via internet har distributörerna generellt sett stärkt sin position av flera anledningar. Forskningen har emellertid förespråkat att det är starka samarbeten som skapar värde i distributionskanalen. I huvudsak har detta påvisats med kvantitativa studier och forskare har därför efterfrågat kvalitativa ansatser.Delvis med målet att fylla detta forskningsgap utfördes en fallstudie om ABB Low Voltage Products distributörsförsäljning av produktkategori Pilot Devices, som bland annat innefattar tryckknappar. Pilot Devices valdes eftersom de är typiska distributörsprodukter i flera avseenden.

Ten colic horses and seven healthy horses were included in a prospective study aiming to evaluate acid-base disturbances in colic horses. Traditional acid-base methods and measurements of lactate were used to study prognosis and changes before, during and after surgery. Strong ion gap, anion gap and base excess were compared to evaluate their ability to predict lactate. Of the ten colic horses that went through surgery, seven survived, two were euthanised and one died. Significant differences in plasma lactate levels were seen between the group of survivals and non-survivals, p=0,000025. No differences were seen in pH and base excess between the two groups.

Jag har under mitt kandidatarbete gjort en praktisk studie av producentrollen på det Karlshamnsbaserade spelföretaget Black Drop Studios. I denna slutreflektion går jag igenom min egen process under utvecklingen av en spelprototyp av företagets primära produkt, plattforms-racing spelet Boingo. Under produktionen har jag som producent verkat för att effektivisera verksamheten och agerat som en resurs för teamet. Jag har haft dagliga möten och individuella samtal med medlemmarna i gruppen, samt kontinuerligt övervakat och utvärderat arbetsflödet genom det web-baserade projektledningsverktyget Redmine. Utöver min roll som producent har jag även arbetat med marknadsföring och presentation av den färdiga produkten på Game Developers Conference i San Francisco.