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1185 Uppsatser om Forest machine - Sida 51 av 79
Kommunikationsstrategi för Renbruksplan : är det en fungerande modell för samebyarna vid samråd?
The reindeer planning system (Renbruksplanen, RBP) is a communication and planning tool designed for Sami groups. A key purpose of this is that it will act as a tool in consultation with other market players, including forestry. Sami groups have asked for a model of how this can be used in a flexible manner. With the Swedish Forest Agency as a project manager, a communication model for how to use the RBP has been designed. It consists of a number of points divided into ?before?, ?during? and ?after? the consultation.
Uppföljning av planerat skotningsavstånd med hjälp av geografisk informationsteknologi (GIT)
The cost of forwarding corresponds to about one tenth of the forestry industries raw material cost. This gives a motive to do good follow-ups to get a good overview of the forwarding distance and, thus, enable improvements. Follow-ups are also justified by the possibility to make more accurate calculations of the harvesting costs, if better estimations of forwarding distance are achieved. Today (2009) Stora Enso has GPS and vehicle-computers in most of their forwarders. These are used mainly for the forwarder to follow the tracks of the harvester and for the planning leader to see how the forwarder has been driving within the stand.
Beräkningsprogram för gasfjädrar
This master thesis work was done by two students at Machine Design at KTH for Lesjöfors Stockholmsfjäder AB. The task was to develop a calculation program for gas springs. The program is going to ease the selection of gas springs for a given case of a lid that should be opened. The program is going to be used internal by sales people at Lesjöfors AB in Sweden and internationally. The program is therefore written in English.The program was developed in Microsoft Visual C# 2008 Express Edition.
Tidsmaskinen
!is began as a product design challenge, which stipulated broadlythat the designer be ?inspired by a subject?, whose ideas would leaddown a path of product idea evolution. From there, the goals forthe end-product would undergo rigorous revisions, re-de#nitionand re#nement. !e end-product itself would be the result of anentire thinking process.!e subject I have chosen is: Time. I want to challenge and evenalter our conventional sense of time, using principles ofdesign.
Skarven : ? Produktutveckling av en oljedimavskiljare
This thesis is a product development project that was performed at Alfa Laval Tumba AB. In the past Alfa Laval have manufactured gas separators for engines where gas flows were cleaned from oil. A new business area for this kind of technology has shown to be the manufacturing industry where oil mist has to be separated from the vented air. Therefore a new and bigger design is needed to be able to handle the greater gas flows. A product like that would be a strong competitor on the market when the maintenance would be low in comparison to today?s equipment.During the project several concept suggestions were developed using customer interviews and research as input.
Vindfällning, tillväxt och plantuppslag i en 13-årig granskärm i Medelpad :
The interest for alternative forest regeneration methods increased significantly during the 1990´s after 50 years dominance of the clear-cutting system (Holgén & Hånell 2000). One reason for this was that clear-cutting was being more and more questioned by different envi-ronmental organizations and because the forest sector for economical reasons wanted to find cheaper ways to regenerate forests. In the beginning of the 1990´s two shelterwood experi-ments were established in a joint effort by Svenska Cellulosa Aktiebolaget (SCA) and the Dept of Silviculture, Swedish University of Agricultural Sciences (SLU). The experiments include various forms of cutting and shelterwood densities and represent productive spruce forests in central and north Sweden (Roggsjön in the province of Medelpad and Skikkis-jöberg in the province of Västerbotten, respectively ). The experiment next to Roggsjön has been reported earlier in three MSc theses, and is also the focus of this thesis.
Göteborgs gåtfulla madonna - Maria med Jesusbarnet och Johannes Döparen på Göteborgs konstmuseum. Ikonografi, tolkning och stilanalys
This essay presents an examination of some aspects of an anonymous Italian fifteenth centurypainting, the Madonna in Adoration of the Christ Child with the Young John the Baptist, in theGothenborg Art Museum. My first aim is to understand its symbolic and religious content, and theother is to make an attempt at an attribution, or at least put the work in a likely environment,temporally and geographically. To the first end I analyse the image using Panofsky?s three stagemethod, and then make an iterpretation using the ?period eye? concept of Baxandall, especially froma religious viewpoit. Secondly, I try to define the style of the work mainly by analysing selectedparameters from a large number of fifteenth century Italian pictures found in the photo archive ofthe Federico Zeri Foundation website on the internet.
Oljeanalyser i kvalitetssyfte
Detta arbete är utfört på uppdrag av Komatsu Forest i Umeå. Ett eventuellt problem som uppmärksammats vid företagets kvalitetsavdelning sedan länge är kiselhalten som syns i resultaten från skogsmaskinernas hydrauloljeanalyser. För att få en fördjupad kunskap om föroreningar i hydraulolja och bättre kunna utnyttja data från oljeanalyser, har underlag tagits fram för att bättre kunna avgöra om kiselhalt i hydraulolja är skadlig. Två målfrågor är: Vilket förhållande har kisel med andra tillgängliga faktorer som drifttid, grundämnen, syratal, vattenhalt och viskositet? Är kisel en tydlig indikator på inträngning av föroreningar från yttre miljö? Då hydrauloljans sammansättning förnyades har arbetets underlag fokuserats på analyser på den nya oljan.
Föroreningar orsakade av stenar inblandade i barrmassaved
Holmen Skog AB is an important supplier of conifer pulpwood to the Iggesund Paperboard mill. After logging and transport to the landing by a forwarder, the wood is loaded on trucks for further transport, often by using separate loaders. During this handling process considerable amounts of stone material is sometimes mixed into the pulpwood and this causes problems for the industry. The aim of this study is to identify which part of the chain from forest to pulpmill, that contributes the most to this contamination. Sizes and total volumes of the contaminating stones were also investigated.
Att arbeta med rörelse i förskolan : Ett utvecklingsarbete
The purpose of my study is to explore which possibilities there are for movement activities and how to use those possibilities. From this study, I will help the pedagogues recognize how to work more or different with movement activities.I have used participant observations and interviews as methods for my study. I did this at one preschool, because it is a development-study. The observations lasted for two weeks and the interviews were made with the majority of the pedagogues at the preschool. The results of my study showed that the preschool teachers think that movement activities are an important part of children?s lives.
Objektskoncentration vid slutavverkning
The study is made on behalf of SCA Skog Jämtlands förvaltning which is one of five administration units that SCA Skog consists of. The purpose of the study is to investigate which reduced expenses there are according to spatial concentration of cutting areas. By increasing the spatial concentration of cutting areas it will reduce the need of movements by trailer, also reduce the number of roads that you use during the activities.
To be able to perform the study, access to a annual cuttings in nine years have been made available. From this volume new annual cuttings has been created but more concentrated. The two different results have been compared and the results show that concentration of cutting areas generates reduced need for trailer transports and less km road that has to be maintained.
But then, if it´s practical viable can be discussed.
Analys och förslag av layout av en verkstadsindustri.
Skillingaryds stålrörsindustri AB handles different kinds of steel pipes and got theirmarket mainly in the furniture industry and in department stores. At the momentthe company find themselves in a strong up going course. In a few years thecompany?s turnover has increased with over 10 million SEK. This has led to ademand for structure changes and reorganizing through the company.
Teknisk utredning av skärutrustning till skördare : En analys av den svenska marknaden
Husqvarna is a world leading producer of chainsaws with a well-established brand name. Husqvarna now has an interest in investigating the possibiltiy to expand their production of chains and guide bars to include cutting equipment for timber-harvesters.This project is a technical study which aims to answer questions about cutting equipment for timber-harvesters that have been decided in cooperation with Husqvarna. The questions have mainly been focused on forces, cutting speeds, service and maintenance -as well as general questions regarding the size of the Swedish market.Two methods have been applied to answer the questions. Interviews with retailers of harvesters, producers of harvester heads and harvester drivers.The main findings in this project show that there is a relatively small selection of harvester chains on the Swedish market. In contrast to the selection of harvester chains the selection of guide bars is quite large.
Värmeväxlare med luftkonditionering för tvättstugor
The energy in laundry rooms, in form heated air, can be utilized with a heat exchanger. A concept and an early prototype of the heat exchanger have already been developed to show that the theory works. This report describes the continued development and construction of the product.A field study was made in order to investigate the environmental usage and establish the product design. The most common washing machine was used as a calculation model, and calculations were also made to estimate the amount of energy in the air. A previous analysis of the existing prototype is also presented in this report, to show the products potential capacity.
Vad vet gymnasieelever om betygskriterierna och kursplanen i Idrott och Hälsa?
The Scanian woodfences has been determined by two mainly elements: Scania's composition of tree species, with a large element of deciduous forest, and the local building tradition which has more in common with the European continent than the Swedish tradition. By examining responses from ethnological question lists deriving from the first half of the 1900s, combined with literature studies, I have been able to deepen and broaden the knowledge behind the various fencing design. In addition I ?ve constructed maps which could illustrate their historical geographic distribution.I have come to the conclusion that there was three main types of woodfences that was most common until the barbed wire was introduced in the early 1900s and later on replaced the elderly woodfences. Common for the three main types is that the base material was made out of Juniperus communis, this largely because of its durability against rot.