Voltage sag indices are a way of quantifying the performance of the power supply, as far as voltage sags are concerned. Indices can be defined for individual events, for individual sites, and for a whole system. A standard method for single-event methods is part of IEC standard 61000-4-30.This thesis emphasizes the importance of voltage sag indices and different methods for calculating three-phase voltage sag characteristics. Three-phase events measured in a medium network voltage over period of one month were analyzed, results examined and statistically evaluated. An algorithm for calculating voltage sag characteristics and indices was created in Matlab.

Volvo Construction Equipment is a world leading company in construction machinery. Tomaintain the best products, development is prioritized. The master thesis regards sound reductionof the hydraulic system on a wheel loader. The background to the master thesis is asimulation made on the hydraulic system, performed autumn 2005. The result of the simulationshows that the energy of the pressure ripple is reduced when the paralleled hydraulicpumps are Phase shifted and reduces each others pump pulsations.

The foremost objective of business organizations is to generate value for shareholders and to opt for strategies which optimize it. Hence it is of key concern for business leaders to appreciate how operations best are run to maximize value creation. This study explores how financial theory can reveal the link between one particular business strategy and the corresponding effect on shareholder wealth. The question in focus is whether construction companies can enhance their value creation by implementing shift-work to increase the weekly production rate. The thesis particularly targets apartment block projects in Sweden and has the construction company Peab AB as primary object of study.

This report investigates the possibility of developing a new and improved hip prosthesis. The result were five different materials that could be used for the prosthesis. These five solutions were Silicone Nitrate on Cobolt Chrome, phase stabilized Zirconium Oxide on Cobolt Chrome, Silicone Nitrate on Silicone Nitrate, DLC coated phase stabilized Zirconium Oxide and Chromium nitride coated Cobolt Chrome on Cobolt Chrome. In addition to this it was also investigated how to best market the prosthesis and how to transport them from production sites to hospitals..

This thesis investigates three different surface modifications, and the route to design and synthesize them. The thesis is therefore divided into three sub- projects. (i.) Design and synthesis of a peptide which secondary structure could be controlled by a negatively charged surface. (ii.) Design and synthesis of a cyclic peptide, that would self-organize prior to surface interaction, using the type I anti-freeze protein of a winter flounder as template. (iii.) The use of solid-phase synthesis to make the synthesis of SAM-molecules easier..

This report is a documentation of a Master?s thesis of 20 credits performed at the educational program of Technical Product- and Production Development with Design at Halmstad University. The project is carried out in cooperation with Hafa AB in Halmstad.The purpose of this project was to bring forth a concept of a bathroom cabinet for Hafa?s new selection Young through creative design methods. The selection is supposed to attract the younger purchaser but also a target group that dare to experiment with home furnishing and appreciates new design.

Constantly growing demands from the costumers in the Automotive industry forces the subcontractors to seek alternative ways to compete. One parameter of quality is the components tolerance against NVH(Noise, Vibraion & Harshness) aspects. Kongsbergs Automotive has developed a new gear shifter platform (Shift-by-Wire) that is sold to Alfa Romeo and used in of their car models. However, the company is not pleased with the components sound quality, therefore the main purpose of this thesis is to develope a number of concepts that is supposed to enhance these NVH-aspects.To get an understanding of the problem an analysis of the causes of the emitted sound has been done parallell to a product decomposition, function decomposition and a Ishikawa-diagram. Together with these methods has a litterature study been performed to get familiar with the physics of an impact and especially the emittment of noise.

This paper aims to explore the reception in Sweden of the work and ideas of neuroscientist Antonio R Damasio, expressed in his four published books. The material used is mainly articled and reviews published in Sweden between 1995 and 2011 regarding Damasio?s books. To analyze the reception, paradigm theories by Kuhn, and Bourdieu?s ideas regarding field, habitus and capital has been used.

Människans balanssystem kan beskrivas utifrån tre delkomponenter, det vestibulära, det visuella och det somatosensoriska systemet. En rad olika skador och sjukdomar som påverkar dessa system stör därmed också balansen. Balansstörningar kan verifieras med hjälp av funktionella tester eller teknisk utrustning. Då teknisk utrustning används är det vanligt att instrument utnyttjas med kraftplattor i syfte att mäta det posturala svajet hos patienterna. Vid balansutvärdering är det viktigt att de instrument som används är validitets och reliabilitetstestade.

This thesis report describes the development of concepts regarding how weight can be reduced to the analytical instrument Biacore 4000. This thesis has resulted in five different concept proposals, all of which is solutions to reduce the instrument's weight.The thesis started with a pre-study where the instrument's structure and function were studied using both Solid Works, the opportunity to study the instrument in real life were also possible done. During this phase, a weight study was conducted as well, in which the instrument's weight distribution was studied and mapped.Following the initial phase, the work proceeded by developing concrete concepts to reduce the weight of the instrument where focus mainly was on the two cabinets. In addition, another two concepts were revealed, both with a more general approach.At the final phase of the thesis, the concepts were compiled and evaluated among themselves and the initial instrument.The thesis resulted in a study of the instrument's structure and weight distribution, with suggestions on how weight may be reduced for the instrument.The result factors such as materials, and manufacturing were aspects that were taken into consideration.At the final section of the report, suggestions for further work in which different aspects are discussed can be found..

The strategy when you change the visual part of the brand identity is often referred to as Corporate rebranding and is seen as a good way to show that a company has undergone a change. Despite high risks and high costs, this strategy has become more common and there are companies today who make the choice to change an already well-known graphic profile. This phenomenon is what underlies this essay?s problem statement: Why does a company with an already well-known graphic profile choose to change it and how does the process behind the change occur? In what way have the company?s customers recognized the change and how has the company?s image changed in this context? The purpose of this essay is therefore to explore the process that occurs when a company in the sport and fashion industry changes its visual identity and to explore how the company?s customers have perceived the change.To fulfil the purpose of the essay a case study was carried out on a company?s Corporate rebranding process. The company that was chosen was the Swedish sports retail chain Stadium Sweden AB who decided to change its graphic profile even though their logo was one of the two most recognized in their field.

Caring for children at hospital with palliative care needs arouses different reactions in nurses and depends on what prior knowledge and experience nurses have. To besides shift focus from to care children palliative to care curative is further a strain and an emotional changeover. The aim of this study was to illuminate nurse?sperceptions about caring for children at hospital with palliative care needs, and how they shift focus of care between children with palliative care needs and children with curative care needs. The study has a qualitative approach and data were collected with interviews from two focus groups.

The milk production per cow has increased considerably during the last 50 years and due to the breeding for higher milk production also brings decreased reproduction efficiency. In a Swedish study 1996 it was shown that on average only half of all estruses were detected. Every time a farmer fails to detect oestrus it costs the farmer about 1200 Swedish crones and the need of means of detecting oestrus is therofore large. With this study we wanted to investigate if heart rate respectively crystallisation of vaginal mucus (arborisation) could be useful means of detecting oestrus. We monitored two oestrus cycles in four heifers.

This degree project concludes the Innovation and Design Engineering programme at Karlstad University. The project was carried out by David Brocker, Erik Hallberg and Andreas Hertzman during the spring of 2006 and corresponded to 15 weeks of work per student. Assigner was Martin Larsson at Arexor and instructor at Karlstad University was Monica Jakobsson.Arexor has a patent to a construction of an electrical skirting board with moveable wall sockets, called Electrical Track System. The lowest parts of the interior walls along the floor are today almost always covered by a conventional skirting board. Arexors patented product replaces that with the possibility to move and increase the number of wall sockets by choice along an electrical skirting board.

The aim with the project was to portray something to step on. Its purpose has been to experiment and explore the interaction between pattern, structure, material and colour for something to be applied on a floor. Focus has been on esthetic expression and not the creation of some¬thing for a specific environment or audience. My goal was also that this project would illustrate the importance of the floor to create a certain atmosphere in a room.The project was divided into three phases. The first one was the experimenting and exploring phase, where the goal was to find an expression.