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400 Uppsatser om Timber truck - Sida 16 av 27

Att ha en blick och en fallenhet för det. : En studie av yrkeskunnande inom lastbilsföraryrket.

Syftet med denna studie var att få en insikt i och kunskaper om vad som gömmer sig bakom uttalanden som att man måste ha en blick och en fallenhet för det. I studien har två manliga lastbilsförare med lång erfarenhet av lastbilsföraryrket intervjuats om deras sätt att se på vilka kunskaper som behövs för att ses som en kompetent och yrkesskicklig lastbilsförare. Kunskaperna som lastbilsförarna lyfter fram är att ha en blick och en fallenhet för yrket.Studien visade att lastbilsförarna hade svårt att sätta ord på vad de menar med att ha en blick och en fallenhet för yrket. Resultatet i studien visade att det som lastbilsförarna pratar om när det gäller att ha en blick och en fallenhet för yrket bottnar i Aristoteles kunskapsbegrepp techne som ses som färdighetskunskap och fronesis som ses som förtrogenhetskunskap.Inom färdighetskunskapen ryms att ha en fallenhet för något, du har förmågan att utföra en handling. Denna förmåga utvecklas genom övning och erfarenhet, och det går inte att förutsäga hur långt en enskild förmåga kan utvecklas.

Systemanalys av skogsbränsletransporter :

At the end of 70s and the beginning of 80s, 18 terminals was built and used for chipping wood residue from clear cuttings. Most of the terminals was terminated before the 2000s but with the high oil- and energy prices that we can see today there might be a place for these terminals again. The goal with the study was to analyze and compare economical differences between 5 different logistical systems, collected data was used with a set of formulas. The systems include long range transport of slash, chips and bundles. Three of the systems include transport by lorry to industry the last two includes a terminal with access to train transport.

"Fallbacks" - betydelsen av vandringstid för Atlantlax (Salmo salar L.) som faller nedströms vandringshinder

In Lake Vänern, Sweden, there is an endemic population of Atlantic salmon (Salmo salar L.) that lives its entire life in fresh water. The salmon is hindered from migrating to its natural spawning sites in the northern part of the River Klarälven by nine hydro-electric power plants. None of the hydro-electric power plants have fishways so that salmon migrating upstream or downstream may pass. In the current situation, the upward migrating salmon are caught in a fish trap at the most downstream located power plant in Forshaga. From there, the salmon are driven in a truck, past eight power plants and released a few kilometers upstream of the eighth power plant at Edsforsen.

Säkra före det osäkra? : En kvalitativ intervjustudie

Studien är en kvalitativ intervjustudie som genomfördes i samarbete med Scania CV AB. Syftet är att kartlägga hur man resonerar kring begreppet säkerhet i förhållande till Organizational Behavioral Management (OBM). Studien presenterar OBMs beteendeanalys ABC-modellen för att beskriva hur ett beteende kan aktiveras samt vilka konsekvenser det har. Den avser även att introducera DCOM och Beteendebaserad säkerhet (BBS) som kompletterande verktyg att arbeta med. Målgruppen i studien är truckförare på Chassi.

Slutväxel HFT : Konstruktionskoncept för banddriven skotare

Sveriges samlade skogsindustriföretag förutspår en förlust av marknadsandelar, eftersom man inte lyckas hålla samma tempo på produktionen som många andra länder. En orsak till detta är att skogsmaskinerna är för långsamma. Skotarna, vars uppgift är att förflytta virket från avverkningsplatsen till en uppsamlingsplats, bär en stor del av skulden. De hinner inte transportera virket tillräckligt snabbt. För att råda bot på detta ska en ny typ av skotare utvecklas, vars plattform inspireras av försvarsteknologi.

Modellbaserad temperaturregleringav partikelfiltrets regenereringsprocess

Due to increasing regulations regarding new diesel vehicles particulate matteremissions the new Scania truck, Scania Euro 6, has been equipped with a particulatefilter. This component effectively stores the particles in the exhaust gas but must becleaned in order to prevent itself from clogging. The filter is cleaned through aprocess named regeneration which is a thermodynamic process in which thetemperature of the filter is raised through fuel supplied to the exhaust gas.The purpose of this thesis is to contribute to the development of improved controlstrategies of the temperature during the regeneration process through thedevelopment of model-based controllers. These controllers are designed in order tohave good performance in stationary as well as automatic regeneration.In order to develop these model-based controllers a model of the system isconstructed. The model is described as a linear thermodynamic grey-box model withflow varying parameters, showing good results in validation.The model provides a simulation environment during the controller design, which isfocused around the development of linear regulators with the exhaust gas mass flowas a scheduling variable whose size determines controllers? mode of operation.

Glastaket : ett bärande klimatskal

This candidate.?s work includes designing of a house with it.?s structural components andinstallations. The house had to be actual with Building Regulations (Boverkets Byggregler).Beside designing of all the crucial systems necessary for completing of claimed regulations evenan optional topic within building engineering had to be chosen.The task included designing of heating, ventilation, sanitation and electricity systems. Structuralengineering models has been made in compliance with Eurocodes. Materials for facades, floorsand roof were chosen and evaluated.As recessed portion of the work, evaluating of possibilities in designing of a glass roof waschosen.

Skånska trähägnader : en studie i konstruktion och historisk utbredning

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.

Lastbilschaufförers upplevelse av Kör- och vilotidslagen och dess betydelse för individens arbetsförhållande

Tidigare forskning om lastbilschaufförers arbetsförhållanden har visat att de utsätts för ett flertal stressorer i arbetet och att de har låg kontroll över sitt arbete. Syftet med studien var att undersöka lastbilschaufförers upplevelse av stress till följd av Europeiska Kör- och vilotidslagen (KoV), hur de upplever sin arbetssituation samt bidra till att öka förståelsen kring lastbilschaufförers arbetsförhållande. Studien omfattade sex manliga lastbilschaufförer från Trestadsregionen (Uddevalla, Trollhättan, Vänersborg) som omfattades av KoV. Samtliga chaufförer hade familj med olika ålder på barn och chaufförernas yrkeserfarenhet varierade mellan 19 och 40 år. Det genomfördes en kvalitativ studie utifrån en tematisk analysmetod.

Undersökning av Södra-transportörernas användande av KOLA-systemet

The purpose of this study was to create a picture of Södra´s round wood transporters usage, and positive or negative experiences of the KOLA-system. The KOLA-system, owned and managed by SDC, is a program for handling timber orders and displaying their locations on digital maps. The study was conducted as a twenty-three question internet-based survey. Of those asked to complete the survey, 57 percent chose to answer the questions. The results of the study indicated that several of the transporters found the system quite good and used it to a large extent. The system also had many deficiencies however, and there was clear potential for further increasing the usage of the system.

Metod för urval av bäriga bestånd längs med bäriga vägar i Sveaskogs planeringsområde Råneå och Överkalix :

With increased need for flexibility in timber deliveries, forest roads become an important factor. The disintegration of roads during the spring season can be avoided if it is possible to rule cutting areas to stands with good carrying capacity along roads with good carrying capacity. The goal with this work was to create a method to find the stands with high carrying capacity located near roads with high carrying capacity, and select them into a collection file. The method was based on Esri ArcGIS 9 and the tables that follow within that program. The method resulted in four different themes: 1. Collections with GYL 100 that cross the bufferzon for 0, 1, 2 and 3 class roads. Result 36 collections. 2. Collections with GYL 100 and 200 that cross the bufferzon for 0, 1, 2 and 3 class roads.

Utdragshållfasthet hos limmade och olimmade gängstänger i limträ

This essay examines pull-out strength of threaded rods fixed into glulam timber. The technology is intended to be used in hidden joints between glulam components. The work began with a study of literature focusing on current research within the topic, mainly to create a base of knowledge before the testing was initiated. Studies of scientific articles reveals a lack of research within this area, which makes it difficult to develop standards and calculation models for these joints. The drill holes in the tests have a diameter of 7 mm.

FE-modellering av hjullast på sandwichpanel

This bachelor thesis in mechanical engineering was performed during the spring2015 in collaboration with Composite Consulting Group in Laholm. TheComposites Consulting Group works mainly with design and details of differentcomposite projects, their main area is FE-calculations, 3D-modelling andmechanical tests with composite materials.The aim of this bachelor thesis was to simplify the calculation process of solidmechanics for sandwich panels by simulation with computer software. The goalwas to decrease the time for the design and calculation process of the constructionand the cost of the practical tests. Our task was to build a static three dimensionalmodel with the computer software Abaqus, where the result should correspondwith the practical pressure tests in laboratory.The project started with collection of material data from Composites ConsultingGroup and by learning the software Abaqus, simultaneously a specification wasdeveloped in corporation with the company. Later on, a static wheel pressuremodel in the software Abaqus was produced which simulated the behavior of thesandwich panel during static wheel-pressure by a pallet truck.

Alumner från SLU, Skogsmästarskolan säger sitt

The purpose of this study is to investigate the forest managers view of the edu-cation at the School for Forest management at SLU and the first years of em-ployment. Surveys were sent to batches 05/08, 06/09 and 07/10 a total of 136 question-naires were sent out. 80 people answered the survey, this gives a response rate of 59 percent The former students rated according to a 9-grade scale how satisfied they were with the different courses they had attended during their years as students at the school. The courses in mathematics and statistics got the highest marks with an average of 7.3, while the entry-level course in law only got an average of 4.6. A major part of the former students had in the questionnaire enquired a leader-ship course and a business course with focus on negotiation techniques during their education. There is a wide variety of employment opportunities for the graduated students. Timber buyers and forest managers or planners are just a few positions that for-mer students now possess. The study shows that there is a big difference in the first introduction to a new work place depending on where the student got hired.

Kapsprickor och avverkningsaggregat

This study was made for the Swedish forest company Sveaskog because the sawmills they delivered timber to had noticed a high frequency of bucking splits in their products. Coworker Jim Edström at Sveaskog also wanted to know if there was a big difference between different felling heads. The purpose with this study has been to find out the amount of bucking splits and if there is any felling head brand that did a bigger damage that the others. The study was made in two steps, where the first part was a literary review to find out results and conclusions in earlier studies. The best measuring method to check bucking splits was the known ?trissmetoden?.

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