The surface finishing technique called black oxidation is currently being used on thetool holders made of low alloyed tool steel produced by Sandvik Coromant. Blackoxidation isn?t considered a sufficient technique because it doesn?t make the toolholders look like the quality products that they actually are. The reasoning behind thisis that the tool holders can show signs of corrosion after prolonged storing times orin countries with high humidity and temperature. The corrosion doesn?t decrease thetool holders performance, but the customers might believe otherwise.

The main goal with the master thesis has been to do a status evaluation of the chain machinery with its start chain and wire to secure the production on a short basis due to that a reconstruction is not planned at this time. An evaluation of the condition of the start chain and the rollers in the chain depository has been done. An offer has been requested for a new start chain and the evaluation of the start chains may be a basis for the decision taking. The production has been able to go on, although it has arisen some problems which have been difficult to find the causes for. There is no gathered ?picture? of the machinery status and a mapping of each machinery has been compiled of comprehensive logs.

This Master Thesis is a product development project that has been carried out incooperation with Metso Paper Sundsvall AB. The task has been to develop a holdingsolution that generates force between two rolls and to evaluate the new solution withrespect to functionality, manufacturing, structural stability, costs, assembly etc. Theroll holding solution is a system that is part of a rollpress. The rollpress is used towash and dewater pulp. The existing solution creates forces that have to be absorbedby the gable of the press.

Want to help making the world a better place? Do it with HypOCycle!HypOCycle is a bachelor thesis that started in September 2007. The project is owned byLars-Johan Hjertz and Erik Westerlund.HypOCycle is probably the only bike in the world that has a linear pedal movement. Themovement comes from a new engine technique that hasn?t even been brought to themarket yet.

Jag har valt att genom min studie synliggöra några pedagogers tankar kring utomhuspedagogik. Mina frågeställningar är:Vad står egentligen utomhuspedagogik för och vilken syn har lärarna som jobbar med naturförskola på begreppet? Hur ser leken ut i en utomhuspedagogisk verksamhet, kan personalen se några skillnader jämfört med leken inomhus? Hur ser pedagogerna på sin roll som ledare när verksamheten är placerad utomhus?   I bakgrunden tar jag upp relevant forskning och historik kring utomhuspedagogik, lekens betydelse och ledarskap. Jag har valt att använda mig av en kvalitativ undersökning med hjälp av ett mellanting mellan halvstrukturerade frågor och en öppen intervju. I datarbearbetningen använder jag mig av den fenomenografiska metoden som bygger på den kvalitativa analysen.

This paper investigates the ongoing talks between the Swedish libraryassociation (Svensk Biblioteksförening) and the Swedish Publishers?Association (Svenska Förläggareföreningen) regarding a new payment modelfor e-book loans in Swedish public libraries. The current model allows an ebookto be lent an infinite number of times and for each loan the library paystwenty Swedish kronor to the supplier, Elib, which in turn passes half of thatsum on to the publicers.The reason for the talks is that both libraries and publishers have reason to bedispleased with the current model. For the libraries it has proven to be aneconomic challenge, for the already strained library economies, sincepayment is made directly by the individual library from the media budget.The publishers also have reasons to want a change of model since thecompensation they receive from the libraries is not enough for them tocontinue publishing e-books and making a profit. They argue that to protectthe commercial e-book market the principle of free loans has to be replacedby a model that introduces ?friction? in the form of limitations on how manytimes a title can be loaned.This study is based on interviews with representatives from both sidesinvolved in the talks, along with a representative from Elib and a librarian.An analytical tool has been constructed by the author to aid in the process ofuncovering arguments and standpoints in the interviews.

Patienter med diskbråck i ländryggen är en vanlig patientkategori som behandlas av fysioterapeuter. Symtomgivande diskbråck kan vara fysiskt och psykiskt påfrestande för patienter. Initialt behandlas de flesta konservativt med bland annat traktion och träning. Verkningsmekanism för dessa behandligar, effekt på patientens symptom och evidensgrad är oklara. Det är viktigt att sammanställa och värdera behandlingsmetoder som används av fysioterapeuter i klinisk praxis.Syftet med denna litteraturöversikt var att granska det vetenskapliga underlaget för traktions- och träningsbehandlingars effektivitet på smärta, funktion och diskbråckets storlek vid ländryggsdiskbråck.Litteratursökningarna genomfördes i följande databaser: PubMed, Ebsco host, SweMed, Cochrane Collaboration och Scopus.

Av vår uppdragsgivare SOMAS i Säffle har vi fått uppgiften att konstruera ett bottenlock till kalottventil DN500 PN25. Vårt mål med arbetet är att minimera vikt och bearbetnings kostnad för locket. Materialet består av CF8M enligt Amerikansk standard.[2] Locket ska godkännas enligt SS-EN 13445-3:2002.[1] För FEM-analys används bilaga C design by analysis. [1]Locket ska analyseras i 3 lastfall.  Täthetsprovning av sätet, påverkar locket med en radiallastTryckprovning, påverkar locket med en övertryckslastDrift baklänges, både radiallast och inre övertryck Med utgångspunkt från kalottventil DN500 PN10, som har identisk axel och kalott, analyserades locket till DN500 PN10 i Abaqus med övertrycket 25bar. Där locket inte uppfyllde kraven sattes stödfjädrar för att styva upp locket.

This study was performed in order to investigate the difficulty in diagnosing retrobulbar disease with ultrasound. A retrospective study was accomplished to investigate the use of ultrasound in patients with suspected retrobulbar problems, and how often the examination is diagnostic. The computer based patient files, at the University of Agricultural Science in Uppsala, were searched for dogs with suspected retrobulbar disease. During 1999-01-01-2004-04-14, 14 patients fulfilling the search criteria were found. The patient records were studied, and the written reports from the ultrasound examinations were compared with the printed pictures from the examinations.

The effectiveness of Phlebiopsis gigantea to prevent spore infections from Heterobasidionannosum and Heterobasidion parviporum on hybrid larch stumps were investigated in fivestands in southern Sweden. All sites are former forest land and the age of the trees wasbetween 9 and 13 years.The study was implemented in August 2010, a month where spore dispersal should be great.The five sites were located in previously un?thinned monocultures of hybrid larch. The sporeload in the air was studied with the help of spore traps from three different tree species;Norway spruce, Scots pine and hybrid larch. A total of 146 spore traps, evenly distributed inall five sites were analyzed.

HiGtech är en projektgrupp på Högskolan i Gävle vilka konstruerar och bygger energisnåla tävlingsfordon. Ett av fordonen tävlar i Shell Eco Marathons prototypklass för bensindrivna förbränningsmotorer och drivs av en på högskolan konstruerad motor. Motorns effekt överförs till en kedjetransmission via en inköpt och modifierad centrifugalkoppling. Den nuvarande centrifugalkopplingen väger cirka 1,5 kg. Då en stor faktor för tävlingsresultatet är fordonets rullmotstånd, vilken beror av fordonets vikt, har målet med detta arbete varit att konstruera en specialanpassad centrifugalkoppling, vars vikt endast är hälften så stor som motorns nuvarande koppling.

Every year, KTH participates in the Shell Eco Marathon, a competition whose goal is to design a vehicle that can go as far as possible using only the equivalent energy of one liter of petrol fuel. This year, one of KTH?s contributions to this race is the Agilis prototype; a car powered by a uniquely configured HCCI-engine developed at the university. The engine is dependent of several subsystems in order to work properly, among other, systems for cooling and lubrication.Combustion engines are in need of a cooling system that reduces the heat developed during the combustion. In general, two main types of cooling systems are employed; either air cooling, where the outside of the cylinder is exposed to a flow of the surrounding air, ore water cooling, where water flows in tubes around the engine, and the heat are transferred by the water to the surrounding air through a heat exchanger.The purpose of the lubrication system is to prevent the friction that builds up in the interference between moving parts in the engine.

The effectiveness of Phlebiopsis gigantea to prevent spore infections from Heterobasidionannosum and Heterobasidion parviporum on hybrid larch stumps were investigated in fivestands in southern Sweden. All sites are former forest land and the age of the trees wasbetween 9 and 13 years.The study was implemented in August 2010, a month where spore dispersal should be great.The five sites were located in previously un?thinned monocultures of hybrid larch. The sporeload in the air was studied with the help of spore traps from three different tree species;Norway spruce, Scots pine and hybrid larch. A total of 146 spore traps, evenly distributed inall five sites were analyzed.

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.

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.