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1000 Uppsatser om Moisture; Solid wood; Vapour barrier - Sida 54 av 67
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).
Skottbetning på granplantor i Kolmården : omfattning och påverkande faktorer
In the Kolmården area, northeast of Norrköping in south-central Sweden, it was discovered that shoots of spruce Picea abies, plants to a seemingly large extent had been browsed by deer. The area inhabits a dense red deer population, alongside with moose and roe deer, and red deer is thus suspected to cause the damage. The main purposes of this study are, however, to estimate the extent of the shoot-damage and to investigate what factors that may affect the browsing of shoots.
For each stand information was recorded about the age of the plants, area for the stand, height over the sea for the stand, site productivity, type of plants and stand-history.
The study was done in three areas: Simonstorp, Stavsjö and Valinge. At Simonstorp and Stavsjö, respectively, 10 stands were chosen for study and on Valinge six stands. In each stand, 10 plots were sampled.
Arenastaden ? En jämförande studie om attraktiva områden för kontor
This thesis has been conducted at Volvo Bussar ABunder a period of ten weeks. Within the organizationVolvo, the work is conducted with leaders and teamson every level; from production to top management.They have three tasks, besides executing their dailywork, they are expected to actively work on improvingtheir individual work as well as themselves as persons.The two latter are future value adding activities for theorganization. When doing so, however, it has beennoticed that they often lose the grasp of their dailywork. The question that consequently arises is whythis happens. Is it because of lack of time or it isbecause the co-workers do not have the competenceand simply do not know how they are to execute thethree tasks? Or, is it because the motivation to executethe three tasks is not enough? With this in regard, thestatement of issues for this bachelor thesis were thefollowing: how can the conditions for leaders and theteam be improved, in order for them to execute thesethree tasks.To find out why the execution of these threeassigments did not always succeed, the decision wastaken to conduct a survey and interview study in reallife and at the plants.
Försörjningsstöd och lokalsamhälle : En explorativ studie om låga försörjningsstödskostnader i Säffle kommun
The purpose of this study is to illustrate if structural factors to welfare indicators and the internal organisation of handle social assistance in combination with dominating ways of living with their values and norms can be used to explain why the costs of social assistance are low in Säffle township. The character of this study is exploratory, though important aspects in this case was unknown. The empiricism come from descriptive secondary statistics and from qualitative interwievs with three inhabitants in Säffle, whom are experts which means they know the township of Säffle and it´s inhabitants well. Säffle has been studied from four perspectives, of which the first two have a top- or macroperspective. In the study appears two divergent pictures.
Småskalig biobränsleeldad kraftvärmeproduktion : teknik och investeringsutrymme
To achieve the requirements to decrease emissions of greenhouse gases by 20 % by 2020, Swedenneeds to increase its use of bioenergy. In doing so it seems natural that those who already haveaccess to large amounts of biofuels in the form of by-products such as straw, wood chips anddigestible materials take advantage of these assets locally. By combining production of heat withpower production at the farm it may be possible to not only reduce the direct use of fossil fuel forheating but also reduce energy costs.The purpose was to simulate different cases of using a small scale biofueled combined heat andpower plant for farm-based systems. A MatLab-model was developed and used to draw conclusionsabout the costs for production of heat and electricity with different conversion technologies.The model uses climate data to simulate the variations in heat energy demand on a day-to-day basis.The given heat demand is the base of the simulation and from this the possible electric output iscalculated. This study has focused on the impact of the following properties: electric-, heat- andtotal efficiency, fuel, fuel price and specific fuel requirements.
Symtom och orsaker till stress : En kvantitativ studie av hur elever i år 4 och 6 upplever stress i skolan
This thesis has two purposes: (1) to analyze the emptiness in Blodbok by Christine Falkenland, and (2) to analyze my own reading of the same book. I have chosen to focus on how emptiness is expressed through the body, the language and the place in Blodbok, because of the deep impact these seem to have on the emptiness. The thesis discusses what kind of emptiness that is described, what it does to me as a reader, and how it is connected to other works by Falkenland. Cultural politics of emotions by Sara Ahmed, Uses of literature by Rita Felski and Pouvoirs de l?horreur by Julia Kristeva together form the theoretical framework.Blodbok is a poetry collection, about the loss of a mother.
BIM Building Information Model : Hinder & Drivkraft
The construction industry is a costly business such in respect of capital for most construction defects which then require rework, tear down and rebuild again. This study is meaningful awareness of tools that can reduce this best through communication and information sharing between the parties. The construction industry is known as temporary projects organizations, where the construction project consists of several actors who have to communicate and share information between them to avoid mistakes later in the build time. These actors are bounded together thus for the duration of the project, then broken when the project has reached its end. The challenge here is for these actors to apply a tool that can help and simplify communications, information sharing, and perhaps the most important aspect is to create a routine for the association and the shattering of these actors. To implement such behavior using a tool such as BIM in the industry whose size perhaps is indescribable may be a very hard task. BIM (Building Information Model) could be seen as the solution to this problem because it acts as a portal where the actors involved must sign in and communicate, share information, and eventually create a behavior, a routine for this association and division of the actors following the end of the project. The technology could help the involved from the beginning of the project, already in the model stage, break down and prevent any construction barriers when the building has been placed in the works.
Däck-mark Interaktion hos skogsmaskiner
The most predominant method for forest harvesting in Sweden is the cut-to-length method based on two-machines, a harvester that fells trees and cut them in a predefined length, and a forwarder which transports logs to a landing area for further transport to a processing facility. New machine solutions have to be much gentler to the ground than today?s machines. To be able to develop a forestry machine that preserves the terrain requires a proper understanding of the interaction between tire and soil.The goal of the project is to contribute to the existing knowledge of forest machine tire-soil interaction and to develop a tire-soil model that enables dynamic simulations of forest machines operating in rough terrain. The modeling has especially been focused on the interaction between tires and soft ground.A comparison of theoretical data of different WES-based terrain interaction models and a comparison test data from a full scale field test is presented.
Torrefaction of biomass : a comparative and kinetic study of thermal decomposition for Norway spruce stump, poplar and fuel tree chips
Stump biomass is energy rich and stump harvesting for use as fuel become more and more
interesting in Sweden. Swedish Forest Agency (2009) has estimated that stump harvesting in
Sweden would respond to an annual energy supply of 57 TWh/year. However, stump has not
been recognized as a bioenergy resource in Sweden. Suitable methods for pre-treatment of
stump are probably of great importance to make it accepted as fuel. It is therefore rewarding
to carry out an investigation in this area for stump.
This report represents results from a diploma project, which was aimed to develop a fixed bed
reactor for experimental study of biomass torrefaction, followed by TG analysis and kinetic
modelling employing Ozawa method and different kinetic models including one-step and
three-pseudo-component models.
Fuktproblematiken : En studie om fuktsäkerhet på byggarbetsplatsen
Kostnaderna för fuktskador i Sverige uppskattas årligen uppgå till mångmiljard belopp.Fuktskador i byggnader medför också en ökad risk för ohälsa hos brukarna. Kunskapen föratt producera fuktsäkra byggnader finns men utnyttjas inte i den omfattning den borde.Den 1 juli 2007 träder en ny upplaga av Boverkets byggregler i kraft. Förtydliganden hargjorts i avsnittet gällande fukt, vilka underlättar verifieringen av entreprenadensfuktsäkerhet. Reglerna innefattar också krav på kritiska fukttillstånd i material. Denna studiesyftar till att kartlägga brister i produktionsskedet och hur produktionen kan utvecklas för attmotsvara de i Boverkets byggregler ställda krav på fuktsäkerhet.Intervjuer har förts med olika representanter i byggbranschen för att ge en helhetssyn avfuktproblematiken.
Lärarkompetens vid validering
Syftet med denna studie var att belysa vårdlärarnas lärarkompetens och deras uppfattning om vilken kompetens som behövs i valideringssituationer inom vård- och omsorgsutbildning. Frågeställningarna var: vilken lärarkompetens har lärarna som arbetar med validering och behövs det någon specifik lärarkompetens i valideringssituationer. Vi har valt att använda oss av en kvalitativ metod i denna studie där målet har varit att få en förståelse för lärarnas egna upplevelser och uppfattningar. Studien genomfördes med halvstrukturerade intervjuer med sex lärare inom omvårdnadsprogrammet. Resultatet visar att ingen av lärarna i studien har en formell utbildning i validering, samtliga har dock gedigen erfarenhet av såväl praktiskt arbete inom sitt eget ämnesområde som undervisning inom vuxenutbildningen.
Avsättningar i pappersmaskiner : Utbildning och förslag till processförbättringar
Deposits can be formed in the paper machine due to sticky materials from wood and recycled paper. These deposits get stuck on process equipment and cause the product quality to deteriorate and the efficiency of the paper machine is reduced. The purpose of this thesis is to increase the understanding about deposits among machine operators, and to suggest methods that can be used to reduce the amount of deposits formed in Bravikens paper machines.To fulfill the purpose of the thesis a pre-study, a literature review and interviews with machine operators and production staff, were carried out. These methods led to the planning and creation of an education about deposits for machine operators.The education about deposits for machine operators consisted of an interactive lecture to introduce the subject of deposits and a subsequent discussion. This approach was chosen to give the machine operators the opportunity to discuss their work situation on the paper machines related to their new knowledge about deposits.
Prefabricerade Passivhus
European Union has made a new decision that all new built houses by 2020 shallbe near-zero energy houses. Boverket?s definition of near-zero energy housesintends buildings with good energy performance in which a proportion of theamount of energy that must be added to the building is made of renewable energy.Passive House is a set of requirements from FEBY designed to build energyefficient buildings. This is achieved by reducing loss of heat through the buildingenvelope and to take advantage of the passive heat from solar radiation,installation and heat sources like people living in the house.This project has been made with help of Anebyhus and one of their model houseshave been examined from the report?s issues, including Anebyhus?s energyperformance, requirements for the manufacturing and assembly, how theenvelope must be improved to fulfill the requirements for the Passive House andwhat energy calculation programs are available on the market.The report aims to provide solutions for energy efficient houses that are adaptedfor production of house building.Two visits to Anebyhus has been done to study their manufacture and assemblyof building elements.
Lärande i och för arbete i industrin : en forskningsöversikt om operatörers förutsättningar för kompetensutveckling
Syftet med denna studie var att belysa vårdlärarnas lärarkompetens och deras uppfattning om vilken kompetens som behövs i valideringssituationer inom vård- och omsorgsutbildning. Frågeställningarna var: vilken lärarkompetens har lärarna som arbetar med validering och behövs det någon specifik lärarkompetens i valideringssituationer. Vi har valt att använda oss av en kvalitativ metod i denna studie där målet har varit att få en förståelse för lärarnas egna upplevelser och uppfattningar. Studien genomfördes med halvstrukturerade intervjuer med sex lärare inom omvårdnadsprogrammet. Resultatet visar att ingen av lärarna i studien har en formell utbildning i validering, samtliga har dock gedigen erfarenhet av såväl praktiskt arbete inom sitt eget ämnesområde som undervisning inom vuxenutbildningen.
Fuktproblematiken : En studie om fuktsäkerhet på byggarbetsplatsen
Kostnaderna för fuktskador i Sverige uppskattas årligen uppgå till mångmiljard belopp.Fuktskador i byggnader medför också en ökad risk för ohälsa hos brukarna. Kunskapen föratt producera fuktsäkra byggnader finns men utnyttjas inte i den omfattning den borde.Den 1 juli 2007 träder en ny upplaga av Boverkets byggregler i kraft. Förtydliganden hargjorts i avsnittet gällande fukt, vilka underlättar verifieringen av entreprenadensfuktsäkerhet. Reglerna innefattar också krav på kritiska fukttillstånd i material. Denna studiesyftar till att kartlägga brister i produktionsskedet och hur produktionen kan utvecklas för attmotsvara de i Boverkets byggregler ställda krav på fuktsäkerhet.Intervjuer har förts med olika representanter i byggbranschen för att ge en helhetssyn avfuktproblematiken.