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909 Uppsatser om Morfological characteristics - Sida 51 av 61

Aktivering av en dissolvingmassa med enzymer före en konventionell viskosprocess

In conventional viscose manufacturing, a large amount of carbondisulfide is consumed. This amount has to be decreased to keep the production cost down and to reduce the environmental impact. The purpose with this work was to show if an enzyme treatment of a dissolving pulp could increase the degree of substitution in the viscose so that the amount of carbon disulfide consumed in the process could be decreased. Previous investigations by Kvarnlöf (2007), Engström et.al. (2006) and Henriksson et.al.

Viktiga egenskaper hos framgångsrika svenska skolskogar :

A substantial part of the Swedish outdoor education is being practiced in so called ?school forests?. The concept school forest was first introduced in the 1980?s by the organization Skogen i Skolan. The definition of a school forest is an area that is being used for educational purposes, over which the school and the land owner has reached an agreement of how the school may utilize it.

Ombyggnad av 1950-talets kontorshus till flerbostadshus

This thesis aims to increase understanding and knowledge of issues affecting the redevelopment of older office buildings to housing. The rising demand for housing in recent years has resulted in a need and an increase in cost housing projects. The need has led property owners wanting to build old office buildings to apartments. The case study is carried out in Lycksele town and in close contact with consultancy TM (Technician Mercantile) ? consulting, which has operations in the area.

Estimering av kapitalkostnad för onoterade företag

The cost of capital for traded companies is basically assessed on information from thefinancial market. Small and non-traded companies are lack of this necessary financialmarket information in order to determine an appropriate equity risk premium and tocompute the cost of capital.In the absence of financial information necessary for an external investor, it is difficult toevaluate a non-traded company with the Capital Asset Pricing model (CAPM), which isbased on the financial market information. It measures only the systematic risk, which isthe contribution of one share to the market risk of a portfolio. It is therefore important tofind models that reflect the small and non-traded companies? real business value and theirunique characteristics.

Entreprenörskap i skolan : en studie av lärarroll och entreprenöriella förmågor på gymnasiekurser med konceptet Ung Företagsamhet

During the recent years the interest in entrepreneurial education has increased both in terms of research being made in the subject, but also in the extent of entrepreneurial courses in Swedish secondary schools, where as the concept Junior Achievement (JA) is particularly being used. A common goal of the entrepreneurial education is apart from teaching the students how to start and run a business, to develop the students? entrepreneurial skills and competences. The main purpose of the essay is to describe and illustrate the role of the teacher in the entrepreneurial pedagogy being used in courses with the JA concept and to investigate which entrepreneurial skills are being developed by the students participating in these courses. There is also the purpose of investigate what the characteristics are of this entrepreneurial pedagogy being used in the courses using the JA concept.

Föräldrars upplevelser av mångbesök på barnakutmottagningen

Introduction: Frequent attenders is a term used in health care services that define a person attending a health care setting more than four times during a 12 month period. Recently published research concerning frequent attenders in pediatric emergency departments describes their reasons for attending a health care service or characteristics of these individuals but lacks a qualitative approach exploring their experiences. There is a need of these experiences to be shared so that health care personnel caring for this group may gain a greater understanding of their needs and expectations.Aim: The aim of this study is to describe how parents of children defined as frequent attenders experience the care received at a pediatric emergency department.Method: Qualitative approach with semi-structured interviews. A pilot study of four interviews was conducted to test the method. Sampling consisted of parents of children defined as frequent attenders and that were not diagnosed with a chronic illness.

Mellanlitteratur på bibliotek och i recensioner

This thesis investigates the reception of middle literature novels among critics in Swedish newspapers and at Swedish libraries. Works by three authors were chosen as representatives for middle literature: Helen Fielding, Nick Hornby and Tony Parsons. The investigation is based on interviews with librarians at the Gothenburg City Library, the total purchased number of books at public libraries in Sweden and analysis of Swedish newspaper reviews. The result is compared with theories by literary sociologists as Jofrid Karner Smidt, Janice Radway, Erland Munch-Petersen and Staffan Bergsten among others. It was found out that literary scientists and critics had a different way of looking at middle literature.

En validitetsstudie på beeptestet : avseende maximal aerob kapacitet för elitishockeyspelare

Introduction: This study aimed to investigate the validity and reliability of the 20m multistage shuttle run test (MST) for elite ice hockey players as a predictor of the maximal aerobic capacity and the how the result is affected by the players age, aerobic and anaerobic capacity, body composition and test surface. The purpose of this was to find out the potential of the 20-m shuttle run test as a measuringtool for the maximal aerobic capacity in frequent testing periods during the season. It is very interesting to be able to administer this easily because the competative phase of the season is very long compared to the pre-seasonal phase and earlier studies have shown that the aerobic capacity is being lowered during this competative phase of the season for elite icehockey players.Methods: 34 elite ice hockey players participated in this study (20.0±3.6 yrs, BMI 24.2±1.6 and VO2-max 58.0±4.8 ml O2?kg-1?min-1). During 3-5 days they underwent 2 MST tests (wood and rubber surface), treadmill running with VO2-max assessed with open-circuit technique, Wingate10% and FFM-assessment with underwater-technique.

Svenska hushålls vedarbete : en fallstudie i Umeåregionen

In Sweden there are 354 000 private individuals owning forest. Of these forest owners there are at least two thirds that are self-employed, which means that about 215 000 forest owners conduct some kind of work in their own forest. Those numbers do not refer to firewood production, but every year 7.3 million piled cubic meters of firewood are used for heating Swedish households. This implies that many households are also producing firewood. The objective of this study was to assess and analyse the small-scale firewood production in the Umeå-region in terms of persons engaged in the work, equipment used, produced volumes and share of forest-owning households involved in these activities. According to results from a questionnaire, the average firewood producing person is a man between 40-60 years old.

"Men där kommer en liten skitig lastbil med flaket fullt av lådor. Det är Mehmet som kör" : En kvalitativ textanalytisk undersökning om hur den etniska mångfalden skildras i nio bilderböcker från 2010

In Sweden exist a Swedish institute for children?s book which is a national information center. They have an annual "Book tasting" where they present statistics and trends from the latest publications of literature for youth and children.In their ?book tasting?? from 2010 a number of picture books had, as they say, children who descend from non-Swedish culture (Swedish institute for children?s book, 2010). The aim of this thesis is to investigate how the ethnical diversity describes in these picture books from 2010. To understand how the ethnical diversity describes in these books I had two questions which helped me in my research.

Wicking ? Utvärdering av två standarder

Syftet med rapporten är att utvärdera och jämföra två standarder, AATCC Test method 198-2011: Horizontal Wicking of Textiles och AATCC Test method 197-2011: Vertical Wicking of Textiles. Standarderna publicerades år 2011 av American Association of Textile Chemists and Colorists. Standarderna mäter wicking, det vill säga, med vilken hastighet som vätska transporteras genom textil, med en horisontell och en vertikal testmetod. Hastigheten anges i olika enheter beroende på standard, enheten för AATCC Test method 197-2011: Vertical Wicking of Textiles är mm/s och AATCC Test method 198-2011: Horizontal Wicking of Textiles anges i mm2/s. Skillnaden i enhet och mätmetod innebär att standarderna inte kan jämföras rakt av genom resultat och mätvärden mellan de båda standarderna.

Economic impact of fertilizers and improved seeds among smallholder farming systems in Central and Western Kenya

In Kenya, many families subsist on agriculture and of the country's around 40 million residents 70% work in the agricultural sector. 50 % of the country's gross domestic production (GDP) comes from farming, and thus the country is largely dependent on income from this sector. Kenya's population has tripled in recent decades, which have led to that food availability is a growing problem. To ensure food security, it is important that the return from crops increases. The aim of this study is to evaluate what impact the use of fertilizers and improved seeds has for farmer?s economic situation and income generation.

Autumn water sources for understory vegetation and fungi in a boreal forest : an evaluation using stable isotopes

Understory vegetation and fungi are regarded as important ecological drivers of processes like productivity and nutrient cycling in boreal forests. Whilst those processes are linked to soil water content, relatively little is known about the sources of soil water for these forest components. During early autumn in boreal forests, temperature falls and large events of rain are frequent which may influence soil water availability. To better understand the autumn plant-soil-fungi water relationships in this ecosystem, I used stable isotopes techniques in this study to examine the water sources for ericaceous shrubs and fungi in a Scots pine forest following a large, early autumn rain event. I hypothesize that ericaceous shrubs of two functional groups (evergreen vs.

Produktivitet vid selektiv mekaniserad bioenergiröjning av eftersatta röjningsbestånd :

In Sweden, harvesting pre-commercial thinning (PCT) stems for energy purposes is a interesting way of financing the high cost of preparing dense stands for a profitable first conventional thinning. This concept can be labelled bioenergy thinning. The aim of this study was to quantify the productivity of a Vimek 404R light harvester with an accumulating Naarva-Grip cutting head during the bioenergy thinning of a self-regenerated stand west of Sunnansjö in Dalarna. The stand was birch-dominated, contained 15 371 stems/ha, and measured on average 4,6 cm Dbh and 7 m tall. Even though the driver was well experienced with the machine, the stand in question was the first one that he ever thinned in this manner. Nevertheless, the driver strived to accumulate as many stems as possible during each crane cycle and chose to cut taller stems in half so as to make the handling and forwarding of the harvested stems easier.

Frystorkning Kontrollerad torkning av kulturhistorisk dräkt?

Cultural objects may become wet by deliberate water cleaning, water disaster or watersoaked for other reasons. Air drying textile objects and even other organic materials from awater wet state, involves many problems depending on the strong capillarity action of water.Damages and changes such as bleeding of dyes, stains or lines of impurities from watermovement, shrinking or stiffness can occur. Freeze-drying as an alternative drying methodhas often been used for wet archaeological and marine objects, but more seldom for historicalmaterials.This bachelor thesis addresses the issue of whether freeze-drying can be an alternative controlleddrying method for historic costumes. Costumes and related objects are often compositeobjects, consisting of multiple materials, as well as being three dimensional, all of whichwill complicate drying. The purpose of this study was to investigate whether it is possible tohandle costume objects after wet cleaning for drying by freeze-drying, and if damages due tosurface tension of water, can be avoided in this way.

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