Introduction: Dolomite AB was in need of a dummy arm for crutch testing, to complement their existing test capabilities. Background: A large number of people need crutches on a daily basis. For them it is essential that their crutches do not fail. ISO (the International Organization for Standardization) conducts ongoing work to guarantee the durability and function of e.g. crutches.

The abrupt and early weaning of intensively kept lambs may have serious animal welfare implications, but relatively little is known about this. Weaning includes the breaking of the mother-young bond and abrupt replacement of milk by solid food, often coinciding with changes in the (social) environment. Altogether, these changes are likely to affect lamb welfare significantly. This study aimed to establish how strong and persistent lamb welfare is impaired following abrupt weaning by means of measuring behaviour parameters indicative of affective state. Also, we investigated the existence of a diurnal rhythm in play behaviour, which is considered an important indicator of positive affect and good welfare.

In many products a compromise between ground clearance and the required space to store the product has to be made. This problem attracted the attention of the authors of this thesis.The objective of this project is to develop a functioning solution to a foldable wheel. The solution should be applicable to several types of product groups. A limitation for this work has been made so that the work only covers solutions for lighter vehicles.The purpose is to drive this project forward, so that a solution can be found. Furthermore the purpose of the report is to clarify how the authors proceeded to design and construct the wheel according to a fixed specification.

Native spider silk is an attractive lightweight natural polymeric material with a unique combination of strength, extendibility and flexibility. Synthetic, recombinant spider silk is an attractive biomaterial with several possible fields of application. When a foreign material is introduced to blood, this can for example cause unwanted coagulation and complement activation. The aim of this study was to investigate if coatings of heparin or albumin could improve the blood compatibility of films of recombinant spider silk and to develop an initial method to do so. Hypothetically, objects like pacemakers, stents and dental implants could be covered with spider silk films of high blood compatibility to reduce potentially harmful foreign body reactions caused by the immune defense. Increased blood compatibility would likely lead to improvements for both the individual patients and the society thanks to reduced load on healthcare institutions. Our objective was to assess the blood compatibility of both functionalized and non-functionalized recombinant spider silk by evaluating coagulation and activation of the complement system of the immune defense. Coagulation was evaluated visually on glass slides and complement activation was analyzed by measuring the concentration of the complement system mediator C3a in blood samples that had been exposed to the different materials. This study introduces a non-toxic and easy performed method of improving the blood compatibility of recombinant spider silk films by adding a heparin coating. Heparin coated surfaces had statistically significantly higher blood compatibility than uncoated surfaces. The effects of albumin coating of films were less clear compared to the results of heparin coated films. Complement activation could not be evaluated because of high activation in all samples prior contact with the materials that were included in the study..

Helstångsborr och konstång kallas bergborrverktyg, som tillverkas av sexkantiga stänger med inre hål för ledning av spolvatten. Dessa spolhål är klädda med ferritiskt rostfritt stål. Innan valsning borras ett centrerat hål i stålämnet som ska valsas. I det borrade hålet appliceras ett rör av ferritiskt rostfritt stål och i det röret skjuts en manganstålskärna in. Efter valsning dras kärnan ut och ett spolhål med invändigt foder av rostfritt stål bildas.

The purpose of this study was to investigate the connection between store layout and how it affects us as shoppers. We formed our research questions based on literature. The study was based on observations of shoppers without their knowing they were observed. We didn?t tell shoppers since the science of shopping says that shoppers pattern of movement is something that?s subconscious and if the shoppers had known it would have affected the result of the study.

This master thesis is commissioned by Permobil AB. The report describes thoroughly the developing process of an adjustable backrest for wheelchairs. The target group for the backrest are people that suffer from scoliosis or other spinal diseases. Because of insufficient pressure distribution usage of traditional backrests is not an option for them.The current solution has got a frame that is made by several adjustable links that is held in place by friction. Between the links velcro tapes are attached that is adjusts the depth.

This thesis analyses the prerequisites, profitability and competitiveness of eucalyptus plantation on the Iberian Peninsula and in Brazil. The thesis has a macro perspective and analyses a typical hectare of eucalyptus in each studied region. A survey methodology was used as a strategy to cover a broad perspective using expert respondents. The regions studied on the Iberian Peninsula were the ones found suitable for eucalyptus plantations from an economic point of view. The studied regions were Huelva in the South West of Spain, Galicia in the North West of Spain and Portugal.

Abstract? Background: ?Breast?cancer is the?most?common cancer for?women,?with?over 8000?of?cancer?cases?per?year.?Surgery?is the?most?common form?of?treatment. Basis?of?illness?and?the?loss?of?a?breast?can?be a?big?trauma for the?individual?and?affect?many?aspects.?Aim: The?aim?of?this?study?was?to?investigate?health-related?quality?of?life?and?psychosocial?situation and the?need?for support and?care?for?women?who?undergone?a?mastectomy?with?or?without?reconstruction.?Method: The?study?design?was?a?descriptive?study?with?qualitative?approach.?The?selection?was?strategically?consisting?of?the?eight?women?from?five?cities?which?had?undergone?mastectomy?with?or?without?reconstruction. The?interviews?were?semi-structured?individual?that?analyzed?using? content?analysis.?Results:All?of?the?women?felt?that?the?body?changed?after?the?mastectomy.? Feelings?of?insecurity?and?discomfort?were?common.?Among?those?who?underwent?reconstruction?were?all?dissatisfied?with?the?results.

Reinforcement is of great importance to fulfill the dimensioned strength of a concrete construction. This requires that the work needs to be carried out with adequate results that neither endangers the workers or the safety of the construction. Progressive development of the planning phase, construction documents, and construction methods is in constant need since the technology constantly evolves.In order for contractors to be able to get acceptances from their quotations requires that they have to increase their working pace in order to be able to leave a quotation with a lower price than the competition.Due to the increasing pace the different parts involved in the construction process is subjected to time pressure. The design stage, construction documents, work preparation and the execution are all affected when everything has to be finished quickly. To avoid problems, it is required that all parts are able to deliver good quality solutions and results under the influences of time pressure, which is not always easy.

Due to recent legal enactments regarding carbon dioxide emissions, the car industry is facing higher demands. An effective way of reducing these emissions is to minimize the weight of the vehicle. This thesis constitutes a feasibility study on whether or not it is applicable for the car industry to utilize an inner floor structure comprising composite materials. The principal was the projectSåNätt, in which the main participant was Volvo Cars Corp. In consultation with a reference group, consisting of delegates from the industry and KTH, a specification of requirements was produced.

The primary function of a mixer is to keep a fluid in constant motion. All mixing applicationsrequire varying degrees of small-scale turbulence and bulk flow. The performance of asubmersible mixer is measured by the thrust that it produces, while the strength of the bulkflow is dependent on the total amount of installed thrust.In a mixer, the fluid quickly flows past the propeller, and as a result, the current is mainlyaxial. The fluid will also obtain a rotating velocity, or a swirl, though this is significantly lessthan that of the propeller. During the process, the total amount of energy increases in the formof static pressure and kinetic energy.

The design of buildings is today considered to be crucial for obtaining sustainable development. Research concerning sustainable building is considered to be a Swedish area of strength and development projects as Hammarby Sjöstad and Bo01 are often pointed out as Swedish prime examples of sustainable building. Some still argue though, that that these projects should not be presented as sustainable, due to its incompetence to meet their objectives. This contradiction has attracted my curiosity. By doing this study I hope to gain understanding about the difficulties Bo01 and Hammarby Sjöstad are surrounded with and its significance for sustainable development.

This degree project has been carried out by Oscar Adolfsson and Marcus Blomqvist, during the spring of 2010, both studying to become Bachelor of Science in Innovation and Design Engineering, at Karlstad University. The degree project includes 22,5 credits.The work is done on behalf of Etac Supply Center AB in Anderstorp. Etac is a company developing and manufacturing home health care products, with operation in Sweden, Norway, Denmark, England and Germany, and with sales worldwide. Bo Lindqvist, R & D manager has been the contact person at Etac.During the project the students has had a workplace at Semcon Caran AB in Karlstad. Semcon has also been helpful as a sounding board.The objective of the work has been developing a new, wall mounted shower chair, assigned for persons with difficulty to stand up while showering.Etacs requirement of the shower chair is that it should be able to support a user with a weight of 100 kg, the chair shouldn?t have any outrigger, optional should be armrests and backrest.

Kroniskt Obstruktiv Lungsjukdom (KOL) är en progressiv folksjukdom som drabbar mer än 10 procent av Sveriges befolkning, där ungefär hälften av alla äldre rökare uppfyller de spirometriska kriterierna för sjukdomen. Muskeldysfunktion är en känd systemisk effekt vid KOL. Handgreppsstyrka har visat sig korrelera starkt med muskelstyrka och muskelmassa i både övre och nedre extremitet hos personer med KOL. Det finns indikationer på att rehabilitering är mer effektiv vid ett tidigt stadium av sjukdomen jämfört med ett sent stadium, därför är en tidig identifikation av en muskeldysfunktion av värde. Syfte: Syftet med studien var att undersöka handgreppsstyrka hos personer med KOL i jämförelse med personer utan obstruktiv lungfunktionsnedsättning i ett populationsbaserat material.