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2143 Uppsatser om Clear-cutting - Sida 6 av 143

Fröskörd av hampa : metoder och tekniker för fröskörd av industrihampa

Hemp is an ancient cultivated plant that came to Sweden in the 1st to 2nd Century and was particularly interesting for use for food, clothing and building materials. Over time, other applications have been developed for hemp, e.g. in energy and health products. Interesting new uses for hemp continue to be identified and this fascinating plant has incredibly versatile applications.In this project, seed production of industrial hemp in Sweden was studied and evaluated. Five different methods are described, four of which are proven under Swedish conditions.

Utformning av kylkanaler och spånrum på superturbofräsar

This thesis describes how the chip space and coolant channels are designed in today?s mills, the ideas behind the design and what is considered to be the best method of cooling. It contains ideas on how the chip space can be simplified. It contains several concepts on how the cooling could be designed for better efficiency and manufacturability. There are also suggestions on how the cooling could be stopped when the cutter isn?t cutting.

Nitrogen fixation among boreal feather mosses along a clear-cut chronosequence

The Swedish boreal forests are limited by nitrogen (N) availability. While biological N2 fixation by cyanobacteria hosted by pleurocarpous feather mosses are important sources of N input to natural boreal forest ecosystems, little is known about the patterns of N2 fixation in silvicultural systems. This study investigates the biological N2 fixation rates of two boreal feather moss species (Pleurozium schreberi and Hylocomium splendens) along a chronosequence from clear-cut to mature forest, as well as the vegetation characteristics along the chronosequence. Measurements and samples were collected from 32 forest sites that were classified into four age classes (clear-cut, pre-commercially thinned, thinned and mature forest). The sites were located near the city of Arvidsjaur in northern Sweden.

Elitfotbollsföreningars Organisation

The overarching purpose is to describe how elite soccer clubs choose to structure their sport oriented organization. This purpose leads us to questions and areas involving sport managers, casting, operational directions, education and goal setting in sport.The results in this thesis are based upon a qualitative investigation of sport managers in Swedish elite soccer clubs. To strengthen the reliability in our choice of method we will fortify it with theories that reflect methodical choice.Our conclusions in this thesis is that one can see a clear difference in how the clubs choose to structure the casting and operational directions within their organization. We have also noted that there is a clear distinguish between the levels of education amongst sport managers in Swedish elite soccer clubs..

Jordlöparfaunan i bestånd av contortatall (Pinus contorta) och svensk tall (P. sylvestris) 1987 och 2010

In the 1970´s the North American lodgepole pine (Pinus contorta) was introduced to Sweden in large scale. The lodgepole pine affects its new environment different from Scots pine (P. sylvestris), leading to a change in biological diversity. Forestry today affects the ground beetle fauna (Carabidae). Habitat specialists associated with older forests are first affected. When the canopy closes again after a Clear-cutting species that prefer open habitats reduces and those who prefer mature/closed forests increase. In this study we compare differences in diversity and community structure of ground beetles in stands of lodgepole pine and Scots pine.

Större svartbagge Upis ceramboides i norra Hälsingland : förekomst, substratkrav och effekter av skogsbrukets naturvårdsåtgärder

Many wood living insects are considered threatened by modern forestry due to the reduction in amount of dead wood. During the last decade various methods have been used to enhance the quantity of dead wood in managed forests. However little is known how and if these methods are aiding saproxylic insects. The threatened tenebrionid beetle, Upis ceramboides, is already extinct in southern Sweden. It develops in white rotted dead birch (Betula spp) and requires sun-exposed sites.

Maskinskydd på rullriktverk

ESAB is a world leader in production of welding consumables and equipment. The company manufactures, among other things, welding electrodes. A roller straightening unit is used in the cutting process to straighten the wire, which the welding electrode consists of, by adjusting some of the rollers during operation. According to ESAB?s standard and the European machinery directives, moving parts of machinery, such as rollers of the roller straightening unit, must be out of the operator?s reach.

ELVEEL - grafisk identitet till klädmärke

In my project I have collaborated with Linda Larson, who is the creator behind the fashion brand Elveel. The goal was to produce an identity and a graphic profile for Elveel. The aim was that the graphic profile would act as an extension of the clothes aesthetics. I wanted to explore if I by different folding and cutting techniques, in tags and packaging, could reflect the details of the clothes expression. But also how different design elements can reflect the story behind the clothes.

Maskinskydd på rullriktverk

ESAB is a world leader in production of welding consumables and equipment. The company manufactures, among other things, welding electrodes. A roller straightening unit is used in the cutting process to straighten the wire, which the welding electrode consists of, by adjusting some of the rollers during operation. According to ESAB?s standard and the European machinery directives, moving parts of machinery, such as rollers of the roller straightening unit, must be out of the operator?s reach.

Arbeta inteam(t) : En studie om team och teamarbete

AbstractThis is the paper you should read if you want to know more about working in team. Teamwork is a way of working and it increases more and more among societies and companies today, but it is not quite clear what the diffrences is from working in groups. We have in this paper tried to clear out the differences between groups and team, and we have also tried to give an oversight of how to work in team in organizations. Cultures of organizations, leadership and power and also development of qualifications are big parts of an organization´s daily work, and we have explained these concepts from a teamperspective.We have, in this paper, done interviews with people that have been in contact with the central consepts that we use. And then we have analyzed their answers with help from litterature, which we have closely studied, thereafter we have presented our results.

Gallringsinventering från helikopter utrustad med profilerande laser och kamera för låghöjdsfotografering

Today Holmen Skog finds and selects suitable thinning stands using data on upper height and basal area. These figures are often based on basic forest data that has been updated with the help of growth prediction models. The problem is that these figures are not always correct. The aim of this study was to investigate if a combination of data from a profiling laser and a digital camera for low elevation photography, can be used for collecting data on number of stems per ha, tree species mixture as well as basal area weighted mean height and upper height for stands. The possibility to use these data to assess the need for thinning cutting was also investigated.Laser data and aerial photographs were collected from a helicopter operating at an approximate height of 100 meters.

Säkerhetsbrytare för Gräsklippare

This thesis describes teh solution of two problems regarding safety on powered lawnmowers; protectning the users from injury when using the lawnmower in slopes, and when cleaning the cutting blade.The task was carried out through initial studies on a representative lawnmower. A generation of ideas followed with an evaluation to select the best solution. The winning concept was further developed to reach acceptable performance. The word resulted in a functioning prototype utilising an original way of detecting inclinations without incorrect signals. It c an serve as a platform for further development into a product.The work gives insightful experience of solving real-world problems, and especially to deal with situations where several variables and their effects are unknownPlease note that several parts of the work are confidential, and have therefore been removed from the thesis..

Normbrytande beteende : en studie av uppfattningar och resonemang hos kuratorer på högstadieskolor

The purpose of this paper is to investigate how staff at secondary schools are thinking and reasoning about notifications to social services based on norm breaking behaviors in students. To find this out five qualitative interviews has been made with counselors in two public schools and three private schools in Örebro län. The results show that there is no clear definition of what norm breaking behavior is which making the reasoning difficult. There are clear procedures for the staff to dealing with norm breaking behaviors but they do not know when they will be applied. The decision to report behavior to the social service is usually not taken individually, it is a result of several people?s views and experiences.

Skolan, en arbetsplats att trivas på! : en studie om framgångsrika skolledares syn på lärares psykiska hälsa

Aim and questionsThe aim of our study was to increase knowledge about successful school managers' views on teachers' mental health and their own work regarding this subject.In what ways do the school manager work preventive with measures on teachers' mental health? How does leadership affects teachers' mental health? What factors create mental health among teachers? MethodIn order to answer the questions, we have chosen to use semi-structured interviews. To get in touch with schools that have been successful with their work with the teacher's mental health, we have made a targeted step wise sample where we contacted the primary managers of six randomly selected municipalities in Stockholms län. In total six school managers have been interviewed. The empiric data were thematized and analyzed based on the demand-control-support model. ResultsAll the interviewed school managers agreed to that the concept of mental health is about feeling good, about balance in life and to feel safe.

Teoribildning och bildtolkning som metod för nytänkande : en studie av heteronormativa diskurser med utgångspunkt i konstnären Chaterine Opies fotografi Self-Portrait/Cutting

Syftet med mitt examensarbete är att belysa resonemang rörande normalt respektive onormalt, maktstrukturer, genusfrågor och kommunikationsprocesser, med utgångspunkt i konstnären Catherine Opies fotografi Self-Portrait/Cutting från 1993. Verket rymmer en komplexitet eftersom brottet mot våra heteronormativa föreställningar utrycks så explicit. Det finns en ambivalens och direkthet i verket som fascinerar. De motstridiga läsningarna väcker ett behov av att förstå bilden på ett mer nyanserat sätt. Jag har medvetet valt att studera Self-Portrait utifrån teorier som ligger till grund för många konstnärer som väljer att röra sig i gränslandet för det samhället satt upp som norm.

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