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2100 Uppsatser om Timber structure - Sida 34 av 140
Recreation in the urban countryside
Barley is one of the most important cereals cultivated in the Nordic countries. Climate change brings warmer and moisture climate which favors fungal diseases. In the cropland barley can be seriously infested with hard fungus attack. Since it is important that the yield bears a high quality it is of great importance to find varieties more resistant to attacks.Pathogenesis-related (PR) proteins are stress proteins induced in the plant in response to infection and abiotic stress (van Loon, 1997). PRs are shown to have antimicrobial activity differing between bacteria, fungi and oomycetes (Tandrup Poulsen, 2001).
Farmers´ decisions factors : a case study
This study examined the factors influencing dairy farmers´ decisions to invest in automated milking systems (AMS). The problem studied involves uncertainty, information and complexity for dairy farmers in specific decision contexts. The frame of reference in the thesis combines contingency theory and decision theory and is used in a qualitative analysis of a set interview with dairy farmers who have recently bought an AMS and salespersons from Delaval, one of the AMS suppliers.The aim of this study is to develop an understanding of the decision making processes of dairy farmers, and in particular to identify which types of factors influence the outcome of an investment decision in the technological development of a farm.The study uses Thompsons` (1967) theory about the structure that organizations develop to handle the input of information. Thus, interest is focused on how a farm business structure handles information in the AMS decision, investigating the differences in information with Delaval?s "feed first principle" system and Lely?s "free cow traffic" system.The results of the qualitative interviews with the dairy farmers who bought an AMS show that there are three important factors that influence the outcome: employees, suppliers and the owner.
Vi i individualismens samhälle? : En studie över fackföreningsorganisationens ställning i det individualistiska samhället
In Sweden, the labour movement historically had influenced both society and politics. In recent times, it is considered a change in society with a stronger employer party while the unions weakened by reduced unionisation. This study aims to highlight the presence of individualistic and collectivistic approaches to the labour market in relation to union density. The different approaches are investigated in the labour market by means of a quantitative survey. The study's survey items are workers in the timber industry.
Gestaltning av tillfälliga städer : en undersökning om egenskaper och gestaltningsprinciper
Designing temporary cities is a study of the design and physical planning of five temporary cities. The purpose was to discuss and note the important questions to be considered, when designing the outdoor environment in temporary cities to create as good an environment for the visitor as possible.
The five cities I have chosen are among the most famous ones in Scandinavia, and they represent different kinds of temporary cities. This was a deliberate choice to achieve diverse research material, and with that a broad view of what the planning stage generally looks like. Study of the cities has been done through interviews with the people responsible for the design and/or physical planning of each city.
Ägarstrukturens påverkan på skolkvalité - En jämförande studie över friskolor före och efter uppköp
Sweden's school voucher reform has made the Swedish school system into one of the world's most liberalized. The debate concerning the ownership of Swedish schools is intense and the Swedish Minister of Education is open to restricting private equity owned companies from running schools. Interestingly, fewer calls are heard for restricting smaller profit-driven companies from owning schools. This essay aims to examine whether or not the quality of education provided by an individual school changes if it is acquired by a large private equity owned school group. This is done by conducting a comparative study on four independent schools recently acquired by AcadeMedia, Sweden's biggest private equity owned school group.
Konstruktion av kostnadseffektiv fläkt till härdningsugnar
Scana-Booforge is a Swedish company which specialize in heat treatment of various metal. The treatments take place in quenching ovens, where fans are used to circulate the hot air. The fans used today do not have a satisfactory lifespan. This thesis aims to develop a new design of the fans for the quenching ovens, and the goal is that the new fans will bring cost savings for Scana-Booforge.The design development process started with mapping out the environment in which the fans operate, and with analysis of the existing fan structure and damages, in order to establish the cause of failure and of short durability. The performance of the fan were also established at this stage.
Integration av PLM och CAD i komplex produktutveckling : En utredning av Scanias framtida systemmiljö för produktdatahantering
In today's producing companies, there is a high demand on early integrated productdevelopment. One way to facilitate communication between departments and collaborationbetween people and thereby enable early sharing of product information within the companyis to use PLM, Product Lifecycle Management.The CAD environment at Scania is at the moment being upgraded from Catia v4 to Catiav5. In this stage it is important that also the interacting computer systems in Scania?s PLMenvironment are adjusted and in the future join the development. Scania has an idea of howthese systems will be developed as the transition from Catia v4 to Catia v5 is being carriedout.
Alternativa skogsbruksmetoder i Norden : ett välbehövligt komplement?
Clearcutting systems have been the dominating silvicultural approach during the last decades in the Nordic countries. While economically rational, it is also leading to a trivialisation of the flora and fauna, and may result in negative reactions of people in urban settings. As a consequence of this, and a more diversified view on which goods and services forests should deliver, there is an increasing interest in broadening the range of silvicultural methods that are used.
The term continuous cover forestry (CCF) represents a suite of methods that have gained increasing interest in the Nordic countries. In CCF a considerable amount of the trees are left after harvest to favour values that require a continuity of tree-covered areas. There are thus hopes that this method will meet the needs for maintaining biodiversity and satisfy social and cultural values.
Geografiska informationssystem på internet : en webbaserad GIS-applikation för kalknings- och försurningsinformation i Kronobergs län
GIS on the Internet is a rather new phenomenon, which has evolved from the need ofdistributed geographical data. It is also a powerful tool for presenting information on theInternet. This master thesis aim to create a web based GIS application with information onlime spreading and the situation concerning acidification in the county of Kronoberg, Sweden.The web based GIS application will be used by the county administrations in Kronoberg toinform the public and the municipal authorities of current counteracting acidification activity.This report includes documentation on acidifying processes and liming activities, which arepublicised together with the web based GIS application. The web based GIS application wascreated with ArcIMS, a new program in the ESRI family of GIS programs. The programincludes a guided structure, to development of everything from a map to a complete GISapplication, including mapservice and websites.
Postningsoptimering vid sönderdelning av fura vid Säters Ångsåg :
The aim of this project is to optimise the sawing patterns used for sawing Scots pine at Säters Ångsåg AB. The thesis has a theoretical approach and does not claim to be fully applicable in a practical point of view.
The input used in this project is last year?s sales volumes and prices of sawn products. The input of the timber is collected from the database ?VIOL?.
Leveraged Buyout : Vilka förutsättningar finns för en LBO av Cloetta Fazer AB?
The number of LBOs in Sweden has increased during the last years and the current market trend is positive. MostLBOs involves private companies, but a few concerns public corporations on the national share market. In this thesis we will examine the conditions of a LBO of Cloetta Fazer AB. The purpose is to study existing conditions of Cloetta Fazer AB and to examine pros and cons with the deal. Based upon information presented in the frame of reference and in the empirical part, two cash flow valuations have been carried out.
GIS-stöd för tunga rundvirkestransporter på väg
För att framföra en timmerlastbil med 74 tons bruttovikt i svensk trafik,krävs ett tillstånd från Trafikverket. Tillståndet består av ett dokument somvisar vilka vägar och broar fordonet får trafikera och vilka regler som gällernär man kör lastbilen.Skogsbolaget Sveaskog startade ett examensarbete med syfte att skapamöjlighet att i realtid presentera för lastbilsföraren vilka vägar och broarsom är en del av transportdispensen. Detta skulle ske genom att utveckla ettkartstöd för lastbilens fordonsdator med anslutning till GPS för attvisualisera dispensdokumentet med de angivna vägsträckorna och broarna.Resultatet av examensarbetet är ett kartstöd som använder tjänster frånArcGIS Online för att presentera geografisk information för användaren.Bakgrundskartan består av en grundkarta från ArcGIS Online. Övergrundkartan ligger ett GIS-skikt med vägar och ett annat skikt med broar.Information om huruvida fordonet för närvarande färdas på en väg somingår i tillståndet eller inte, samt information om regler som gäller för broarpå vägavsnittet, presenteras för föraren i realtid. Denna informationuppdateras vid varje uppdatering av GPS-positionen..
Bojkonstruktion
The division of Electricity at Uppsala University runs a project called Lysekil project, they have designed a buoy that uses the waves to create electric power from a generator attached to the bottom of the sea.Uppsala University is closely connected with the company Seabased and the university makes use of their facilities in Lysekil. When they designed the buoy issues occurred, the geometric design was flawed, brackets with a short shelf life and it is generally uneconomic.A study visit was done in Lysekil on Seabased facility. With this visit the project started, which is to improve the design of the buoy and the attachment of wires leading to the generator. In this project we have chosen to use a beam system with three beams that are attached to the buoy. Then a wire attached to a plate that sits between the beams will be leading to the generator. Two proposals for construction are created, what distinguishes them are the brackets between the beams and the buoy.From these constructions, the design that is considered most optimal for our project is chosen.All parts of the buoy have been modeled and the drawings are designed in ProEngineer software.The two constructions are compared with each other, but the whole focus is on the second and final structure. The report begins with an introduction describing Lysekil project, and a task description of our project.The project aims to produce an optimal buoy that will be easy to design, materials restrictive with good durability and an economical solution.Wave power true function has been studied, mechanical and finite element analysis of beams, buoy and plate design.This has been presented in this report, where in the various chapters can read more about the processes. Although the relevant facts and information on this project and buoy development is included.
Implementering av miljöledningssystem i skogsbruket : en fallstudie hos Stora Enso Skog AB
Environmental management systems are a way of systematizing and streamlining an organization's environmental efforts. Within its EMS the organization determines it´s environmental policy and various environmental objectives. In order to achieve their environmental objectives the organization produces action plans that describe how they will work towards the objectives. Stora Enso Skog AB´s districts have been assigned to produce action plans for the company´s environmental objective of 90 % approved everyday nature consideration in final felling and any targets included within this objective. The purpose of this study was to investigate how the districts work with these action plans and how this could be improved.
Analys av värdeoptimeringen i justerverket : Rörvik Timber
I takt med konkurrensen ökar på marknaden väljer många sågverk att i allt högre utsträckning kundanpassa sin produktion mot de krav kunderna ställer på produkterna. Sågverkens produktion bör vara inriktad på att skapa ett så högt värdeutbyte som möjligt där virkets egenskaper och produktionsanläggningens förutsättningar ställs mot de kundönskemål som finns. (Lycken, 2000)
I sågverkets justerverk sorteras trävarorna i olika sorteringsklasser, även kallat kvalitetsklasser, samt kapas i exakta längder. För att kunna skapa ett högt värdeutbyte krävs det kunskap dels om vilka av träets egenskaper som är avgörande för värdet med dagens sorteringssystem och dels en insikt i hur volym- och värdeandelar ser ut för olika produkter samt hur olika sorteringsregler styr värdeutbytet.
Sedan början av år 2008 har Rörvik Timber Rörvik AB ett BoardMaster-system i sågverkets justerverk som använder färgkamerateknik för att värdeoptimera trävarorna. Examensarbetets syfte är att analysera värdeoptimeringen av trävarorna i justerverket vid sågverket i Rörvik.