The mouse (Mus musculus) is the most commonly used mammal in biomedical research and can easily be restrained by both hand and by a device. Restraining animals causes stress that not only decreases the animal?s wellbeing, but may also influence the research results. The first aim of this study was to train mice to voluntarily stand still using positive reinforcement training. Another benefit of teaching a mouse to stand still is that you can avoid anaesthesia for some procedures.

Projektet Precious utforskar narrativa lagningar av artefakter. I arbetet diskuteras människans komplexa förhållande till artefakter. Komplexiteten som behandlas i arbetet är fokuserad kring att artefakter förutom rent praktiska funktioner; även fungerar som verktyg i den sociala interaktionen människor emellan. Industrialism i kombination med bland annat den fria marknadsekonomin har särskilt efter Andra Världskriget bringat välfärd och accelererande konsumtionstempo i det moderna västsamhället. Konsumtionsvanorna är numera mer sammanlänkade med varumärken och social status än behovet av praktisk funktion.

Probiotics is a special group of health products on the market. The most common type of  these is live cultures of lactic acid fermenting bacteria from raw milk . These include, among others, yogurt and various trademarks such as Hälsofil ®, Acidophilus ®, Dofilus ® and Kefir ®. Such products are often used by patients who are treated with antibiotics to combat the intestinal flora eliminated, thus causing digestive problems. The present work deals with yet another type of health product, viz.

Jag har som examensarbete på master-nivå formgivit en sittmöbel med utgångspunkt från min uppväxt i Dalarna. Målet har varit att göra en filosofisk tolkning av mina minnen samt en hyllning till regionen, i synnerhet Borlänge där jag växt upp.Jag har under projektets gång gjort en resa både på ett mentalt och rent fysiskt plan tillbaka till den plats jag växt upp för att utforska mina minnen och därigenom skapa en plattform för mitt designarbete.För att nå mitt resultat har jag använt mig av designmetoder som ITK, intervjuer, skisser, studiebesök, materialtester, mockups samt modelleringsverktyget Rhino.Resultatet är en stol inspirerad av saker som bland annat Ornäs stugan och musikkulturen i Borlänge. Stolen består av en metallkonstruktion, trädetaljer vid fötterna samt armstöden och en sits i läder.For my thesis work on postgraduate level, I have designed a chair based on my upbringing in Dalarna. The goal has been to make a philosophical interpretation of my memories and a tribute to the region, particularly Borlänge where I grew up.During the project I have made a trip both on a mental and physical level back to the place where I grew up to discover my memories and thereby creating a platform for my design work.In order to achieve my result, I have used design methods such as ITK, interviews, sketches, field trips, materials testing, mockups and the modeling tool Rhino.The result is a chair inspired by things like Ornässtugan and the music culture in Borlänge. The chair consists of a metal construction, wooden feet and armrests and a seat made from leather..

MYDATA automation AB is one of the leading companies in development of surface-mountingtechnology and stencil free solder paste applications. MYDATA?s MY500 is a jet printerdesigned for solder paste application on printed circuit boards. The jet printer contains a cassettewhich consists of a holder and a cartridge. There is also a calibration unit which monitors andcalibrates the application of solder paste.

Most of the city of Uppsala rests on postglacial clay with a varying content of sulphur. The sulphur occurs naturally in the clay in reduced form as sulphide and the clay is for that reason usually called ?sulphide clay?. Excavation during construction activities gives rise to large amounts of excavation material, of which the sulphide clay is a considerable part.When the clay is exposed to air and water, an oxidation of the sulphides occurs which may produce an acid leachate and the mobilisation of heavy metals bound in the clay or underlying material. The aim of the work has been to improve our understanding of the behaviour of sulphide clays and produce a basis for risk assessment in the future handling of excavation material with high sulphide content.

Laser for material processing possesses a number of advantages which mean that it has been and will be an important component for a wide range of industries' future development. Cutting materials processing is the dominant use of laser technology and has revolutionized the manufacturing industry. The aim of this thesis is to describe the principles of metal cutting by laser, how laser cutting is applied in practice and to identify how Swedish companies are using laser cutting. For the theoretical and technical description of laser cutting literature studies are the primary source of information. The empirical basis for the mapping of the Swedish industry for laser cutting is grounded on a survey; this includes Swedish companies that use laser cutting in their production.

Södra Cell Mörrum is one of the five paper pulp plants that are included in Södra Cell, and the paper pulp that is produced here is not only sold to Swedish paper mills. Most of the paper pulp is exported to different countries in Europe. In the manufacturing process the plant needs different kind of process water and there are guideline values for how much copper, iron and sodium this water is allowed to contain. Analyzes of this water is in the current situation done with an atomic absorption spectrometric instrument (AAS-instrument) with a flame. Measurements done with flame-AAS of samples that have concentrations near the guideline values for copper, iron and sodium, are not reliable. The reason for not being reliable is that the quantitation limits of these metals are higher than the limit values.

Powder Metal (PM) gears are machine element components which operate under the same principle as conventional gears, but, due to their intrinsic material characteristic need to be designed slightly different, and its manufacturing process offers advantages previously unobtainable by conventional steel gear manufacturing methods. The use of PM in similar applications, such as synchronous hubs, makes them a suitable candidate for production in such material. The current master thesis work focuses on gear design using PM by utilizing finite element method (FEM) to reduce weight and inertia taking into account root bending strength and tooth deflection.First a topological optimization is used to determine feasible candidates for different web designs which have as objective to reduce volume, similar topologies were shown during different loading conditions; and hence, this topology was chosen as a suitable candidate. A shape optimization of the topological candidate was performed having as state variables root bending strength, independent for compressive and tensile side of the tooth loading; and tooth deflection, which in concept can be correlated to static transmission error (TE).Another aspect in this thesis analysed is the possibility to incorporate non-trochoid root geometry, a trochoid root is always present when machining with a hob, into the gear root and hence reduce the stress concentration here. Due to the use of PM, a non-symmetric optimized root can be achieved and hence be optimizing compression and tension.Results showed significantly lower inertia, for example certain results showed 40% reduced when compared to solid gear, with adverse effects as increase in tooth deformation and increase in maximum principal stress.

Phosphate is a used as a surface treatment method which is used for various purposes in the industry. In this case, phosphate coated wire is used in the processes to achieve a desirable outcome. The reason to why phosphate coated wire is used in the production process is because phosphate acts as an accumulator, where it stabilizes the lubricant on the surface of the wire. Lubrication is important because it plays a major role in the roll quality and characterizes important benefits regarding the outcome.Currently, SKF has to wash away all phosphates residues after extrusion process in an operation called tumbling. The main reason for this is simply because the surface has to be completely free from lubricants and coatings till the next step of process.

Background - Swedish trade and industry primarily involves small corporations, including small manufacturing corporations. Currently, most costing models that are used are based on studies accomplished at large corporations. This conveys to the fact that product costing that occurs at small manufacturing corporations is based on all complexities that large corporations bring, which rarely match with small corporations. It occurs that small manufacturing corporations unconsciously rely on incorrect information that has been calculated based on great corporations? product costing.

Syftet med denna uppsats var att genom en genusvetenskaplig och socialkonstruktivistisk ansats undersöka hur kvinnor framställs i de svenska hårdrocksmagasinen Close-Up Magazine och Sweden Rock Magazine. Då majoriteten av den genusrelaterade medieforskningen har intresserat sig för reklam- och modebilder finns en kunskapslucka kring hur kvinnor framställs i bilder inom genrer vid sidan av dessa.Denna studie avsåg att genom semiotisk textanalys undersöka bilder i dessa magasin, för att identifiera de kvinnliga stereotyperna i dem och sedan jämföra dessa med etablerade stereotyper som tidigare forskning påvisat. Sammanlagt analyserades 28 bilder i 15 magasin från 2013 utifrån feministisk blickteori och Goffmans teori om könsframställning.Tre tydliga kvinnliga stereotyper framträdde i resultatet. Dessa benämnde vi som Den hårda, Den medkännande och Den objektifierade. De två sistnämnda är väl kända sedan innan inom forskningssammanhang medan Den hårda kvinnan, som bland annat uppvisar tecken på aggressivitet, avsky och överlägsenhet, inte påträffats i liknande studier innan.

In the assembly process of airframe structures there are many drilled holes and on some parts the holes are mainly drilled manually with pneumatic handheld drilling machines. During conventional drilling in metal, burrs appear. To remove these burrs the parts of the structure must be separated and deburred before they can be put together for fastening. This is a time consuming measure and therefore expensive. To facilitate this process and lower production costs some parts of the process needs to be automated.A part of this thesis was a project in co-operation with Saab, Novator, Specma Automation and the University of Linköping.

Grubbe Ventilation AB is a sheet metal and ventilation company who provides design, installation, service, and repair of ventilation. The company is expanding their business by building a new facility in Umeå, Västerbotten. The property is designed to be used for both office and industrial work.Grubbe Ventelation AB has not yet decided upon wish system which is to be established to provide the building with heating and cooling. The consulting firm Umeå Projekt Team has therefore been asked to investigate the possibilities to invest in geothermal- heating and cooling.If the investigation of a geothermal heating- and cooling system would provide favorable results it would be a very appropriate alternative that provides energy at low costs and are an environmentally friendly option as the energy comes from stored solar energy in the ground is provided by stored solar energy in the ground.The facility ´s heating and cooling consumptions are calculated in the program BV2 and the result indicate a heating demand of 185 000 kWh per year due to thermal transmittance, transmission losses, heating of warm water and a cooling requirement of 5500 kWh.Three different systems of geothermal heating and cooling were tested in the computer program Energy Earth Design. The results show no difference in the dimensioning of the drill hole if merely heating were to be used or both heating and cooling were to be established.

Kremering är idag det vanligaste jordfästningssättet i Sverige, de allra flesta som avlider kremeras och gravsätts i urna. Frågan om hur de metaller som finns i kroppen men inte får plats i urnan hanteras har hittills inte väckt så stor uppmärksamhet, speciellt inte ur miljösynpunkt. Dock handlar det om åtskilliga ton metall som varje år grävs ner på kyrkogårdar runt om i landet. Denna metall påverkar dels miljön negativt, dels kommer det att ta upp mer och mer plats på kyrkogårdarna i framtiden, och att gräva ner metaller imarken är inte ett miljöoptimerat sätt att hantera dessa. Det finns dock andra saker än bara miljön att ta hänsyn till i denna fråga.