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10397 Uppsatser om Wood-based beams - Sida 16 av 694

A comparison of two certification schemes for dairy cow welfare in relation to resource-based, management-based and animal-based measures

Traditionally risk-based measures have been used to assess animal welfare in legislation and certification schemes. With increased knowledge and research, debate today tends to focus on and advocate the use of animal-based measures. However this is not a panacea for welfare and the most sound conclusion should be that assessment of animal welfare needs both. The aim of this thesis is to identify the points that need to be taken into consideration to find the optimal balance in the use of input and outcome measures according to the aim of the assessment and how these should be applied when designing a certification scheme? To answer this, a comparison of the use of resource-based, management-based and animal-based measures in two certification schemes for dairy cow welfare, Freedom Food (UK) and Svenskt Sigill (SWE), was made.

En studie av sedimenttransport, död ved och kantzoner längs två vattendrag i Kilsbergen - från skog till slätt :

Headwater streams are affected by anthropogenic impacts at multiple scales. One aspect of human impact is sediment transport associated to the abundance of stream structures as large woody debris and the composition of the riparian zone from forest to agricultural landscapes. Riparian buffer zones and stream structures like dead wood are considered as generally important structures for protection against an increasing amount of sediment particles in the water. Hence, in this study these structures were quantified in thirty different stream segments on land and in the water. To measure the transport of sediment Whitlock-Vibert boxes were used in three different types of landscapes; forest, transition and fields. The boxes were left in the stream segments for three months, the taken up and dried and weighed. The results showed that the transition-land in Frösvidalsån had the highest sediment transport. The second highest transport of sediment was in Blackstaån at the fields.

Managing IT Costs with ABC - An empirical study av Toyota Industries IT Supply Europe

The purpose of this essay is to apply Activity Based Costing on a Service and Support function in order to identify and allocate costs for providing support for IT deliverables..

Åtgärder för att minimera trafikbullers påverkan på ett rekreationsområde

The aim of this inquiry was to investigate the most appropriate measures to reduce noise impacts from road traffic on the Nydala recreational area in Umeå municipality due to the planned re-routing of the E4 motorway to an existing road along this area. The sound environment is an important part in the experience when we are visiting recreational areas. Noise is not only disturbing; the liberty from unwanted sounds also allows us to perceive natural sounds that are a benefit for the cultural experience. Therefore it is important to take actions to protect this well used area from traffic noise. The reasonable options to avoid noise impact in this case are to lower the speed limit, using a noise reducing coating or use noise protection screens and walls.

Färsk ved till Hallstaviks pappersbruk :

Hallstaviks papermill is an industry plant within Holmen Paper. Hallstavik is a mechanical mill and produce newspaper and journal paper. During year 2000, Hallstavik used approximate 1.200 m3f spruce, either as logs or chips from sawmills. Due to that the production is running continuously the mill also needs raw material at the same rate. At some periods the supply of raw material cannot keep up pace.

Stor problematik på liten yta : Att skriva informationsmaterial för skattefinansierade verksamheter

The purpose of this thesis has been about processing an already existing folder for a tax funded organization which is also the employer for this mission ? Expectrum. The reason is that both Expectrum themselves and the recievers of the folder are unhappy with the existing material. The critic that has been directed to Expectrum is that the recievers have trouble understanding what Expectrum is and what they do. Based on qualitative methods such as interviews and text analysis I?ve been able to answer my questions for this thesis.

Konstruktion av tryckförstärkare

Masonites flexibla byggsystem, är ett byggsystem utvecklat av Masonites Beams AB för flervåningshus, bostäder och kontor i trä.  System är anpassat så att det i största möjliga utsträckning går att använda sig av prefabricerade element direkt från fabrik, för att sedan hopfogas med mekaniska förband på byggarbetsplatsen.Masonites förslag på en infästning mellan bärande väggar är utformad som en montagedubb vilken förs ned i ett hål i underliggande väggelement. Montaget av dubben fungerade inte önskvärt, och det finns tveksamheter i montagedubbens förmåga att ta upp vindinducerande krafter.Examensarbetet syftar till att utforma och dimensionera ett nytt väggbeslag till Masonites flexibla byggsystem där snabbt montage av beslaget är viktigt. Iden är att såga en kontinuerlig slits i väggelementen som man sedan fäster plåtar som skruvas fast i det övre- respektive det undre väggelementet. Skruven som används är en självborrande skruv för att slippa förborrning av plåten och väggelementet.Reglerna i Eurokod 3 och 5 ligger till grund för beräkningarna av beslaget och lastnedräkningen av ett 8-våningshus är enligt BKR. Lämplig indata till lastnedräkningen gjordes i samråd med erfaren konstruktör och inblandade i MFB från Masonite.

Innovativ utmatningsteknik : Mediumstor bulkförvaringslösning

This master thesis was done for a company called BRUKS which is active in woodprocessing,bio-energy and bulk material handling industry. The idea for the master thesis wasto develop a new reclaiming method for silos where wood chips are being stored. A mediumsegment of between 1000 ? 5000 m3was defined as the segment with the most sales potential.Two different concepts were produced, one for new constructions and one for rebuildingalready existing silos.In the beginning of the master thesis a lot of time was spent on visiting different BRUKSoffices and customers to get an overview of the industry and the product. This informationwas the basis when the idea generating phase began.

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.

GIS-baserad habitatmodell för mindre hackspett, ett verktyg för att bevara skyddsvärda lövskogar inom Umeälvlandskapet :

Deciduous forests are, according to the National Environmental Quality Objectives, a priority area. Deciduous forests are rich in species and the occurrence of dead wood is an important factor for biodiversity. In order to identify valuable deciduous forests for bio-diversity, conservation needs good analyses and planning tools. Habitat models combined with geographic information systems can be used to study the spatial structure of suitable habitat. The Lesser spotted woodpecker (Dendrocopos minor) has been proposed as an indicator species for deciduous forests, since this species is highly specialized on insect larvae in dead wood and requires large areas of deciduous-rich environments. Many riparian forest with high species richness and high nature conservation values are found along the Ume river in Umeå municipality.

Stamprofiler : en jämförelse mellan två olika apteringslistor

This report is a thesis work for a B.Sc. in Forestry at the School for Forest Engineers, SLU. The aim of the work was to compare two different pricelists with the actual output from a harvester. The results have also been compared with a volume estimate of standing trees done by the Swedish Forest Agency and the ?true? value registered by the Wood Measurement Association. The study confirms that the output calculated by the computer on the harvester is more reliable than the volume of standing trees estimated by Swedish Forest Agency. .

Stabilisering av höga trähus via centralt placerat hisschakt

I Sverige finns det inte många höga trähus, trots den enorma tillgången på material och det faktum att de allra flesta villor/småhus är byggda av just trä. Att trä är ett lätt byggmaterial, är väl lämpat för prefabricering samt är återvinningsbart i stor utsträckning medför att det är väldigt konkurrenskraftigt. Så varför utnyttjas inte detta byggmaterial oftare? En av anledningarna till det ligger i de konservativa regelverk som tidigare funnits i Sverige, de har inte tillåtit att bygga högre än två våningar med bärande stomme av trä. Något som ändrades vid årsskiftet 93/94 då en ny norm, BBR 94, kom som gjorde det möjligt för trä att användas i stommar.

Blinkbeteendebaserad trötthetsdetektering : metodutveckling och validering

Electrooculogram (EOG) data was used to develop, adjust and validate a method for drowsiness detection in drivers. The drowsiness detection was based on changes in blink behaviour and classification was made on a four graded scale. The purpose was to detect early signs of drowsiness in order to warn a driver. MATLAB was used for implementation. For adjustment and validatation, two different reference measures were used; driver reported ratings of drowsiness and an electroencephalogram (EEG) based scoring scale.

Olika uppvärmningssystem : en fallstudie i mellansverige

The purpose with this project is to compare different fuels when investing in a central combustion station at a case study farm. I have chosen to write about biofuel from an economical perspective. This because the heating costs are steadily increasing. Also because the farm in this case study has several different heating systems, which are neither profitable nor easy to work with. I have made calculations regarding usage of splinter, wood and grain for the heating system.

Datorbaserad examination: En studie om användarhinder och systemacceptans bland lärare

The aim of this thesis is to examine how teachers use computer based assessment in their work and what user barriers they experience while working with computer based assessments. The result of the thesis is meant to provide an understanding of which factors affect the use of computer based assessments and how a company who provide computer based assessments applications can increase the rate of use amongst teachers.To investigate this, the author examined a company in Sweden who provide a computer based assessment application for both universities and high schools. The study was carried out at two different schools, a university and a high school, both located in Stockholm. In total nine teachers were interviewed. The author also conducted observations at the company whose computer based assessment application was examined.The author?s findings suggest that a lack of functions within the application and lack of costumer support from the company all negatively impacted the teacher?s use of the application.

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