Mechanical scaling is one of the most complex operations of all in the mining process. The operators are using both hearing, sight and feel to read the rock and to know where to scale and where to leave. They say they go on gut feeling in great extent, something that comes with experience. The scaling machine is placed into the edge of unsecured and newly blasted rock to hammer off the blocks that has become loose after the blast, but not enough to fall down. It goes without sayingthat it is a risky job.

Boliden Mineral Ab's mine in Garpenberg, Dalarna is going through a massiveexpansion. The annual ore production is being increased from 1,4 million tons to 2,5million tons in less than two years period of time. Along this expansion thedepartment of mining techniques is administrating a project of optimizing the shortterm planning for the mining production. Garpenberg have since mid 90s storedinformation from all mining processes in a database.The information consists of time data from all the different activities required in themining process, for example charging, blasting, loading etc. The database also containstime data of delays that are affecting the production.

Mussel meal is a potential source of protein, with a good composition of amino acids, for laying hens and broiler chickens, and may replace the use of fish meal in organic poultry production. Lead and cadmium are heavy metals which occur in the environment and can be accumulated in mussels. When poultry are exposed to heavy metals, the metals are absorbed in the small intestine and distributed in the body in the form of ions, complexes or bound to proteins. In poultry, lead accumulates in bone tissue, liver and kidneys, while cadmium accumulates in liver and kidneys. Generally very low concentrations of these heavy metals occur in muscles of broilers which have been exposed to feed contaminated with cadmium or lead.

Open pit mining creates huge amounts of tailings and waste rock deposits. Due to it's content of sulphide minerals, predominantly pyrite (FeS2), there is a risk of oxidation and formation of acid water containing heavy metals, known as Acid Rock Drainage (ARD). To prevent the process of oxidation, the tailings and waste rock have to be reclaimed. The most commonly used methods of reclamation are a coverage of water or soil. Mining also results in a large-scale interference in the landscape that will make an eternal change of its appearance.

Bakgrund: Prematurt fo?dda barn utsa?tts fo?r ma?nga sma?rtsamma ingrepp under sin tid pa? neonatal va?rdavdelning. Det finns behov av att utveckla icke- farmakologisk sma?rtlindring som komplement till farmakologisk sma?rtlindring fo?r denna patientgrupp. Tidigare forskning har visat att inspelad musik under blodprovstagning har positiva effekter pa? prematurt fo?dda barns fysiologiska va?rden samt beteendema?ssiga respons.

The purpose of this study is to give an insight in how music press is presented gender wise. The focus area lies in rock music and the study is made on British music magazine MOJO in the year of 2010. The study contains quantitative analyses showing how much room men are given compared to women. The study is also supplemented with image analyses of four covers spread out over the year. The main question is formulated as in, how much room do women get in music magazine MOJO 2010 and what output does this have on rock music?s gender characteristics? The main results show, amongst other things that 79% of all the articles are written with focus on one or more male musicians.

Syftet med studien var att få mer kunskap om vilka motiv människor har till att ständigt återkomma till Sweden Rock Festival och vilka upplevelser under festivalen som attraherar dem. Frågeställningarna var: Varför väljer man att återkomma år efter år till samma festival, och vilka upplevelser under festivalen är attraherande?Till grund för empirin, ligger en kvalitativ studie med intervjuer av sju ständigt återkommande besökare till Sweden Rock Festival. Analysen grundar sig på socialpsykologiska teorier om mänskliga möten av Goffman och psykologiska teorier om motiv. Dessa är bl a; Cromptons teorier om push och pull faktorer och Manells och Isa-Aholas escapeseeking modell.Resultatet visar att informanterna väljer att återkomma för att uppleva sådant de saknar i sina liv till vardags.

Toxic metals contaminate soil worldwide and thus serve as sever environmental threat. Therefore the purposes of this study were to investigate in which soil fractions that different heavy metals (Fe, As, Cu, Zn and Pb) could be found in contaminated soils and if it is possible to use sieving as a method for decontamination. Soil samples were collected from three different locations, the Nasa silver mine, the Blaiken-mine and Svalget environmental station. The samples were oven dried and later on sieved into six different fractions 8mm, 4 mm, 0.5 mm, 0.250mm, 0.063 mm and <0.063 mm. The fractions 4 mm, 0.5 mm and <0.063 mm from each location were analyzed in an x-ray fluorescence detector.

Syftet med uppsatsen är att presentera utvalda teoretiska modeller i litteratur inom Upplevelseproduktion, samt att genom en produktion testa huruvida dessa teorier är relevanta. Syftet är även att undersöka karaktären hos gästens eventuella upplevelse vid produktionen för att avgöra om de teoretiska modellerna även gjort upplevelsen meningsfull för gästen. Med ett hermeneutiskt förhållningssätt och en deduktiv ansats har vi med hjälp av ett antal teoretiska modeller först planerat och sedan genomfört en reell produktion vid namn Rock n? roll Piteå och med det som grund gjort en kvalitativ intervjustudie baserad på tre fokusgrupper. Endast individen kan avgöra om en upplevelse varit meningsfull, då detta är subjektivt, men med stöd i det resultat fokusgruppintervjuerna visat kan vi konstatera att det för en stor del av informanterna varit en meningsfull upplevelse.

LKAB is an international high tech mineral corporation and a world leading manufacturer of refined ironore products for steal manufacturing and other mineral products destined other industries. LKAB is an international corporation with companies world wide, with it?s main location in the north of Sweden, which is where the iron ore mines and the refining works are located. LKAB?s iron refining process in Vitåfors, Malmberget, is a source of great amounts of waste-rock.

In the following study I probe the social world of hard-rock music. By conducting interviews with four young male enthusiasts of this music I try to develop a general picture of this social world, as well as of the basic elements on which this particular subculture is constructed. The identity of a hard-rocker is based upon a number of factors beyond just a preference for that music. Throughout the interviews I encountered many implicit norms that one must followed in order to be able to see oneself as a true hard-rocker. I also found that from the respondents? perspective, the mainstream culture has, throughout the history of metal music, used various ways to counter the spreading of this genre.

The purpose of this thesis has been to assess whether leaching from one particular Swedishlandfill site, Skörbytippen, is contributing to elevated levels of heavy metals in a ditch runningfrom the landfill site to the lake Mälaren in the communal region of Håbo kommun. Since theditch is stretching approximately five km downstream from the landfill site, in situ observationsand maps with known points of inflow was utilized to determine appropriate test points for thecollection of samples.Soil, water and sediment samples were collected and analyzed for content of organic material, pHand conductivity. Data on plant-available elements and total amounts of heavy metals wasacquired through ICP-analysis.The results show that the Skörby landfill is currently in the methane-forming anaerobedevelopment phase, which indicates that the concentration of free and complex-bound metals inthe leachate water should be low due to chemical binding with other landfill compounds. The pHof the sediment samples was generally one unit higher than the soil samples and some of themeasured data, such as pH and conductivity, show that an environmentally disturbing dischargeof some kind of strongly alkaline chemical(s) has been made from Benders? takpanneindustri inclose proximity to the landfill.

Four different kinds of filter-materials with reactive surfaces have been studied concerning their capacity to absorb heavy metals in leachate from a municipal waste deposit. The heavy metals studied were: lead, cadmium, copper, mercury, chromium, nickel and zinc. The leachate contains high levels of dissolved organic carbon (DOC) and has a high pH-value along with a high buffer capacity. These characteristics of the leachate make it difficult to remove pollutants and require efficient filters. The filters that were examined in the report are blast-furnace slag with CaO, sand covered with iron oxides, olivine and nepheline.

Heavy duty vehicles often have problems with traction during the winter periods. For vehicles that can lift tag axles it is possible to increase the normal force on the driven axle by lifting one or more tag axles, this will then increase the propulsive force of friction. This however increases wear on both road and vehicle. A possibility to reduce the wear while achieving nearly equivalent traction compared to lifted tag axles is to allow the vehicle to regulate the normal force by lowering the pressure in the air suspension associated with the tag axles or by the lifting of these axles. The vehicle would then by itself be able to set just the right amount of normal force on the drive wheels to avoid unnecessarily high normal forces while maintaining sufficient traction.The purpose of the report is to find out which parameters affect heavy duty vehicles when driving on slippery slopes and how traction can be improved.

Under vårterminen 2014 har jag omarrangerat rocklåtar till så kallade ?udda taktarter?. Meddet menas att jag har tagit en låt och bytt taktart från fyrafjärdedelstakt till en taktart manvanligtvis inte stöter på så ofta inom genrerna pop och rock. Jag har även analyserat pop- ochrockmusik som redan har udda taktarter för att få inspiration. Jag har intresserat mig för hurdet ?udda? uppstår och hur man kan motverka eller förstärka det.