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122 Uppsatser om Rolling mill - Sida 8 av 9
Utvärdering av vattenrening och identifiering avförluster m a p energi vid Bravikens pappersmaskin 53
This Master degree project has been performed at the Braviken paper mill on papermachine 53 (PM53) which produces newsprint paper. The current economic situationhas contributed to declining demand for newsprint, which means it is extra important tobe competitive by high energy efficiency. Particularly as energy prices are expected torise when the economic growth returns.One way to increase energy efficiency is by reducing the water use in paper and pulpmills and consequently save energy through reduced heating of water. The thesis's maintask is to evaluate whether a water purification plant (microflotation plant) forpurification of process water in PM 53 is profitable. The microflotation plant enablesreuse of warm process water instead of losing the energy to receiving waters.
Förstudie för en vindkraftpark på Malmölandet i Norrköping : En undersökning av förutsättningarna för en vindkraftpark på ett sen tidigare planerat område
This is a feasibility study that examines various aspects of building a wind farm on Malmön in Norrköping. The feasibility study deals with interests of conflict, park design, electrical connections, production calculation, financial calculations and operating- and timetable.The report is divided into two distinct parts. First a theoretical part, which deals with conflicting interests, park design and electrical connections. Second a part with simulations dealing with production calculations, and financial calculations.Opposing interests are mapped so that problem areas can be found, and help put focus on the right places at a future environmental impact assessment (EIA). There are a number of areas where planners have to assess on an EIA, this thesis point on the most important areas.
Salmonella prevalence in the poultry feed industry in Pakistan
Abstract
One of the leading causes of food borne infections in the world is due to Salmonella by con-suming poultry products including eggs and meat. According to US Food and Drug Admin-istration (2009), 2 to 4 million cases of Salmonellosis in humans occur every year only in US. Salmonella causes wide range of diseases with enteric and typhoid fever, food poisoning, di-arrhea and gastro-enteritis. Many serotypes of Salmonella do not have host specificity and cause disease in all kinds of animals and humans. Salmonella has capability to modify accord-ing to the changing environment and it can develop resistance against routine elimination practices of sanitation, chemical treatments and antibacterial drugs.
Newly established poultry industries in Pakistan are confronting various infectious diseases including Salmonellosis while in Sweden Salmonella prevalence in animal products con-sumed for humans is extremely low.
Viltets inverkan på vegetationsutvecklingen i en Sydsvensk skogsföryngring :
Herbivore impact on the Swedish forest has under a long time been a common subject of
debate. There are many different opinions depending on what direction the forest owner has with his/her forest. Populations of moose and roe deer have increased significantly in Sweden during the last decades. The purpose of this study is to get a full picture of the herbivore impact on the regeneration areas. The field work was done once a year for seven years (1999?2005).
Allsidig rörelsekompetens hos barn och ungdomar : En kartläggning av skolelevers funktionella motorik
Gross motor skills among Swedish pupils. An overview of functional motor abilities among Swedish children and adolescents.IntroductionPhysical Education (PE) teachers in Sweden have noticed that pupils are getting worse in their ability to manage gross motor skills and in their aerobic practice. The gross motor skills and coordinative skills are the solid ground for sports and other health activities. If not developing their gross motor skill children tends to avoid taking part in games and sports. The benefits of sports and outdoor activities such as social and health benefits can therefore be missed.
Kemisk karaktärisering samt nedbrytning av process- och avloppsvatten vid SCA Ortvikens pappersbruk
During pulp and papermaking process a huge amount of water is used. The wastewater contains a large amount of pollutants and has to be treated before it reaches the recipient. In March 2004 a new bleaching plant was started up at SCA Graphic Sundsvall AB, Ortviken?s paper mill using peroxide. The production of bleached thermo mechanical pulp and thus the load to the wastewater plant increased.
Kartering av markföroreningar inom Skutskärs Bruk samt utvärdering av spridningsrisker enligt Naturvårdsverkets MIFO fas 2
With the prospect of future construction on the Skutskär Pulp Mill property, Stora Enso Fine Paper has initiated an investigation of soil contaminants and a risk assessment of these contaminants. A soil and groundwater investigation has therefore been conducted on an open area of about 16 000 square meters, situated between the current wood room and digester house. To be able to integrate this study into an investigation for the whole industrial property, the study has been carried out as a phase 2 study according to the Swedish Environmental Protection Agency?s Methods of Inventories of Contaminated sites (MIFO).The site investigation has involved soil and groundwater sampling, together with the analysis of heavy metals and organic contaminants. The degree of hazard posed by the contaminants, the level of contamination, the potential for migration of the contaminants, as well as the degree to which protection of human health and the environment is required in the area, have been weighed together for an overall risk assessment of the area with regard to human health and the environment.The investigated area was built up by filling in the coastal waters.
Kortare timmer till sågen, en fallstudie om sänkt stötmån
Bakgrunden till denna studie är att företagen Moelven Skog och Valåsen sågverk önskar effektivisera råvaruanvändningen och därmed minska spillet av timmer genom att sänka stötmånen. En sänkning från tio till sju centimeters stötmån har redan implementerats på Valåsen sågverk men man vill nu undersöka om det går att sänka den ytterligare. Genom att genomföra en sådan förändring avser företaget vinna strategiska fördelar såsom volymbesparingar av virke och högre timmerutbyte i jämförelse med konkurrenterna.
Syftet med studien är således att undersöka möjligheterna att minska längden på timret från Moelven Skog till Valåsen sågverk genom att sänka stötmånen. Förhoppningen är genom studien skapa en metod som sedan kan användas för att ta fram den ideala stocklängden till samtliga svenska sågverk inom koncernen.
Kunskaper som klarlägger timmerhantering från skog till såg har använts tillsammans med kunskap om sprickuppkomst, mätning och kvalitetsbedömning av sågad vara, fördjupning i justerverkets mätutrustning samt teorier om processanalys.
Sågverksbranschens kostnads- och intäktsstruktur : undersökning, analys och trender inom svensk sågverksnäring
Sandvik Group is a global engineering corporation within materials technology and produces, among other things, band sawsteel. In order to develop custom relations, custom benefits and the supply chain Sandvik wants to become more acquainted with its customers. Improved feedback means that Sandvik will be able to develop its products in a customized direction. This thesis is a tool for educating and developing sales staff. As a support a calculation tool that can be used as a sales aid has been developed.
Aktiv dödshjälp : en studie de lege lata och de lege ferenda
?Liberal Democracy? is a common term in political theory, and it is used as if it had a commonly accepted referent, with both normative and descriptive content. This is certainly the case in democratic theory, where it on the one hand seems to refer to a normative democratic model; on the other hand it is used descriptively, to refer to real-life democracies. The deliberative democratic sub-field is not an exception; on the contrary, the term is frequently used albeit rarely defined; yet the concept it refers to is supposedly developed enough to allow detailed propositions about its citizens?s political behaviour.This essay is an attempt to analyze how Liberal Democracy is used by three deliberative democrats (Jürgen Habermas, John Dryzek and Stephen Elstub), in order to understand the democratic model (or models), whether normative or descriptive, they refer to.
Den aggregativa demokratin : Hur Jürgen Habermas, John Dryzek och Stephen Elstub använder termen liberal demokrati
?Liberal Democracy? is a common term in political theory, and it is used as if it had a commonly accepted referent, with both normative and descriptive content. This is certainly the case in democratic theory, where it on the one hand seems to refer to a normative democratic model; on the other hand it is used descriptively, to refer to real-life democracies. The deliberative democratic sub-field is not an exception; on the contrary, the term is frequently used albeit rarely defined; yet the concept it refers to is supposedly developed enough to allow detailed propositions about its citizens?s political behaviour.This essay is an attempt to analyze how Liberal Democracy is used by three deliberative democrats (Jürgen Habermas, John Dryzek and Stephen Elstub), in order to understand the democratic model (or models), whether normative or descriptive, they refer to.
Förslag på produktionsförbättringar av Sektion 24 vid LKAB: s
anrikningsverk i Kiruna
Detta examensarbete har genomförts vid LKAB:s anrikningsverk i Kiruna, där produktionssektion 24 har studerats. Denna sektion maler tillsatsmedel, som används vid tillverkningen av pellets. Projektets fokusering har legat på att ta fram konkreta förslag på förändringar som kan förbättra styrningen av produktionen, uppnå en jämnare produktkvalitet och en bättre arbetsmiljö för personalen. Projektet började med en grundläggande studie av nuläget, för att kunna identifiera de problem som finns idag. Metoder som användes till denna studie var arbetsstudier, intervjuer, kontroller av produktkvalitén och studie- och benchmarkingbesök.
Inventering av förorenade områden enligt MIFO-fas 1 : Erasteel Kloster AB, Söderfors
Erasteel Kloster AB Söderfors have been commissioned by the county administrative board in
Uppsala län to make an inventory of possible contaminations in theirs industrial- and landfill areas on the basis of the Swedish Environmental Protection Agency?s; ?Method of Surveying Contaminated Sites-phase 1? (MIFO-fas 1). The inventory starts with maps and archive studies, place visits and interviews, and finally a risk classification is done. A risk classification is a compilation of four categories; pollutant toxicity, contamination level, possible spreading condition of the pollutant, sensitivity and protection value of the environment.
In this paper five partial areas (Holmen- and Jörsöområdet, Järnsvampsområdet,
Ingsådeponin, Östra verken and Myrområdet) have been described from a historical point of
view. Only parts of four areas have been risk classified (Holmen- and Jörsöområdet,
Järnsvampsområdet, Ingsådeponin and Östra verken), due to that the other areas isn?t own by Erasteel Kloster AB.
Holmen- and Jörsöområdet
Holmen- and Jörsöområdet have during the entire activity time been carried out as the
production core in the company.
Varumärket Sverige : En medveten variabel i företagets varumärkesstrategi? En jämförande studie av två svenska företag.
In these days of globalization, with a higher level of openness and interaction over geographical, cultural and economical borders, the importance of the company?s intangible asset, its brand, is gaining importance as a differentiating factor. Building a strong brand and the emphasis on strategic brand management is something that before was given less attention in firms but today we can see a general increase in awareness and relative emphasis in the strategic work of companies.Countries as brands: Is it possible to consider a nation or a country as a brand the same way you consider a product? Well, looking in to the subject it seems to be a rather complex matter and there are many questions to be asked and answer. Nations around the globe are indeed marketing and positioning themselves for several purposes.
Export of wood pellets from British Columbia : a study about the production environment and international competitiveness of wood pellets from British Columbia
The global wood pellet market has seen a rapid growth after the adoption of the Kyoto protocol and the renewable energy incentives created within the European Union. The global consumption of wood pellets reached 13,5 million tonnes in 2010 and several experts estimate the consumption to be between 35-50 million tonnes by 2020. These forescasts raise the questions which regions that can supply this vast amount of wood pellets and what the conditions are for producing it.
This study evaluates the conditions for wood pellet production and export from British Columbia, on Canada?s west coast, focusing on existing industry structure, raw material supply and the distribution chain.