Sök:

Sökresultat:

108 Uppsatser om Wright mills - Sida 6 av 8

Hårdfräsning i verktygsstål : Förslitning av skäregg

This thesis work is made by Torbjörn Johansson on Karlstad University for Uddeholms AB. The assignment in this thesis work was to investigate tough cutting in three different tool steels: Vanadis 4 Extra, Vancron 40 and Sverker 21. The research was to compare the wear of the tool after cutting in each one of the tool steel alloys. The research was also made to see if the tool cutting in Vancron 40 has a better wear than the tool cutting in Vanadis 4 Extra and also compare the results with Sverker 21. All three of these alloys are a part of Uddeholms AB:s range of products, and is used in applications like forming tools and knife tools. Vancron 40 is a powder steel with a very good combination of mechanical properties like ductility, adhesive strength and hardness.

Socialpsykologisk studie om samarbete : En studie om vilka sociala förhållningsätt som är betydande för samarbete i arbetslivet

Our post-modern society is being continually more characterized by the working life, where corporate relations and the understanding of human momentum, limitations and knowledge is the basis of the quality of the corporation. In other words, it is of the greatest importance to keep in mind the attitudes, behaviour, stress levels and motivations that constitute a good working environment. We find it interesting to study what social psychological approaches and social processes could be of importance to good cooperation. The research has its starting point in a qualitative method focused on semi- structured interviews, where we have interviewed eight respondents working within the psychiatry. The research has strengthened our pre-understanding but also made clear the existence of other social processes and approaches that affect cooperation.

Hagaskolan, en reflekterande och medveten skola : hur organisationskulturen kan påverka ett lärarlags pedagogiska arbete och bemötande av elever

AbstraktMed ett socialpsykologiskt perspektiv och hermeneutisk ansats är syftet med denna studie att undersöka hur en skolas organisationskultur påverkar ett lärarlags pedagogiska arbete och bemötande av elever. Vi intervjuade tio pedagoger inom ett lärarlag på Hagaskolan i Varberg. Vi utförde dessutom en informationsintervju med Mats Oljelund, en av de två verksamma rektorerna på skolan. Detta för att få information dels om skolan men också om dess involvering i utvecklings- och arbetsprojektet OUR. Resultatet har vi analyserat med hjälp av Mats Alvessons bok ?Organisationskultur och ledning? (2009), John Gastils teori om grupprocesser och ledarskap, Moira von Wrights (2000) begrepp relationellt respektive punktuellt perspektiv samt Hannah Arendts begrepp, Vad eller Vem (von Wright 2000).

Att tala är silver, att tiga är guld? : - En kvalitativ studie om interaktion i samband med talad engelska under engelsklektionerna

Since the 1990?s the Swedish school system has undergone major and recurring structural reforms. Two of the most comprehensive changes has been the shift of primary schools as an integral part of the welfare state to the responsibility of the municipalities as well as the introduction of free school choice for the students. Through two months of participant observations and semi-structured interviews this thesis seeks to answer the question of how these reforms has come to effect the work of teachers in a medium sized public school in a small municipality in the outskirts of Stockholm. Earlier research has shown that public schools in socio-economically vulnerable areas are disadvantaged due to the reformation of the school system (Beach & Sernhede, 2011; Östh, Andersson, & Malmberg, 2013).

Bruka utan att förbruka - när andra intressen än ekonomin får styra

To have a forest area close to the city is of great importance for the city population?s well being. Children develop their motor skills, concentration and imagina-tion and the adults have a place to shake of the stress from work. Forest areas are used to exercise at, play in and to find a moment of peace and silence. The urban forest and the old farming pastures at Markussonvallen and Per-Isakssonvallen already has natural assets worth to preserve and a great potential to create more. The goal is to develop a forest with a variation of tree species and ground vegetation that will appeal to the human senses and different animal species such as birds, insects etc.

Validering av metoder för analys av Cu, Fe och Na i processvatten med AAS-grafitugn

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.

Print quality study of a laboratory offset press

PAPRO operates within the Forest Research company and their mission is to develop value-addingindustry solutions. At present there are no good ways for mills to easily test the printing quality on newsprintpaper. There is a great need for a fast way to do this on different paper qualities; with a laboratory-offset press this can be both a time and money saving method. At PAPRO Forest Research, NewZealand, a laboratory offset press has been developed and designed, during the past seven years, concerningthis issue. Earlier projects were made concerning the press, e.g.

Simulering av COD-fraktioner i en aktivslamanläggning vid en sulfatmassafabrik

This thesis work was made for Södra Cell Mörrums bruk in Blekinge. The purpose of the work was to develop a computer model in the simulation program Extend for the removal and balance of organic oxygen consuming substances, measured as COD (Chemical Oxygen Demand), in the new biological treatment plant in the mill. The plant produces two different pulp products, TCF- (Totally Chlorine Free) pulp and ECF- (Elementary Chlorine Free) pulp, for sale. The different bleaching procedures affect the characteristic of the wastewater and thus the effectiveness of the biological treatment plant.In the model that was developed the COD in the wastewater was divided into five different COD-fractions: soluble easily degradable (SS), soluble hardly degradable (SR), soluble inert (SI), particulate inert (XI) and particulate biomass (XB). To create the model FlowMac? was used as a base.

Realisering av returer vid rundvirkestransport med lastbil : hinder, möjligheter, vinster och vinstdelning

Holmen Skog, region Norrköping, is located in an area with good potential for backhauling because a large number of geographically scattered mills. However, despite these factors there are many difficulties preventing the realization of this potential. The purposes of this study were twofold. First, from a hauling contractor perspective, to calculate backhauling profits and suggest a profit sharing scheme. Second, to identify and quantify obstacles and possibilities for realization of backhauls.The study required the use of three different types of methods.

Virtuellt upplevelserum: en begreppsutveckling baserad på teori och empiri

Konsumenter söker efter njutning och exaltering i deras shoppingupplevelse när de handlar över Internet (Jayawardhena & Wright, 2007). Njutning och exaltering är känslor som uppkommer ur positiva upplevelser. Därför är det relevant att undersöka hur företag som bedriver e-handel via webbsidor kan skapa positiva upplevelser hos sina besökare. En fysisk omgivning i ett servicesammanhang kan skapa förutsättningar för positiva upplevelser hos besökare (Mossberg, 2003). För att skapa förutsättningar för positiva upplevelser hos webbplatsbesökare är det då relevant att undersöka hur den fysiska omgivningen i en webbsida kan utformas.

Det krympande klassrummet : En studie av högstadielärares förutsättningar i ett reformerat skolsystem

Since the 1990?s the Swedish school system has undergone major and recurring structural reforms. Two of the most comprehensive changes has been the shift of primary schools as an integral part of the welfare state to the responsibility of the municipalities as well as the introduction of free school choice for the students. Through two months of participant observations and semi-structured interviews this thesis seeks to answer the question of how these reforms has come to effect the work of teachers in a medium sized public school in a small municipality in the outskirts of Stockholm. Earlier research has shown that public schools in socio-economically vulnerable areas are disadvantaged due to the reformation of the school system (Beach & Sernhede, 2011; Östh, Andersson, & Malmberg, 2013).

Teknik för egen foderberedning :

There is an uncertainty in the market for grain forcing the meat/milk producers to review alternative feeds to a larger extent, in order to get control over the feed costs. This has led to that the meat/milk producers need to have a good knowledge regarding how the different feeds influences the animals and which technical equipment to use for handling. For those that produce their own feedmix, there is a need to put interest in new crops and their characteristics to be able to get the knowledge of what is required for their own production. It is beneficial to keep an open dialogue with advisors to be updated in new crops and new technology for feeding. When mixing feed at farm level, the legislation is not very clear since it the target group is large scale mixing plants. We have brought up the most important rules and regulations from the EU parliament Council as well as the ones from the Swedish Board of Agriculture (SJV), regarding feed mixing on farm and factory level. We have studied beans and pea at two different moisture levels, in order to evaluate how the moisture level affects the distribution of particles when milling with a plaitmill and a hammermill.

Vindkraft och landskap

The current debate about environment and climate change has contributed to more andmore investment in alternative energy sources such as wind, solar and biogas. The Swedish Parliament has set the target that wind power should supply 10 TWh in 2015.In Sweden, wind power establishment began in the early 1980s. Since then the development has gained a tremendous momentum. The purpose of this study was to find out what problems wind power brings and what power relations that exists in connection with wind power establishment and how the landscape is affected by windpower construction, focusing on some cases in Falkenberg and Varberg. This study shows that wind power establishment is a very complicated process.

Kundanalys av tryckpappersförbrukare i Finland

The negative trend of newspapers reading gives the owner of several paper manufacturingcompanies in the West worries. Producers should be more concern to strengthen their marketpositions in order to maintain profitability in the paper mills. Holmen Paper is a medium sizedpaper mill company with all of their production in Europe. Sales are mainly made to printingcompanies operating in European countries. In order to strengthen their economic strengthHolmen Paper needs to increase the market share in markets where they have the greatestprofit margins.

Ekonomiska konsekvenser av etanolproduktion i östra Sverige : en analys ur lantbrukarens och förädlingsföretagets perspektiv

This study analyses the economic consequences due to ethanol production in Eastern Sweden. The analyses consider the cooperative and the farmers as one vertically integrated company. The area that found the market in this study is illustrated in figure 1. The analyses assume that all members act jointly with the objective of maximizing joint profits at the farm level as well as at the cooperative firm. A mathematical model is created to calculate the optimal use of arable land.

<- Föregående sida 6 Nästa sida ->