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1205 Uppsatser om Thermally treated wood - Sida 15 av 81
Emissioner i slutna utrymmen Med speciell inriktning på emissioner av formaldehyd och organiska syror
This study aimed to evaluate the levels of formaldehyde and organic acids that can build up within enclosed spaces. Another goal was to compare two types of paints that can be used as coating barriers within showcases and in turn compare them to the modern, and by many highly recommended, material of Marveseal®. A low volatile waterborne alkyd/acrylate paint and a two component polyurethane paint was compared to Marveseal® in two series of experiments. One series measured the level of formaldehyde, and thus the effectiveness of the three chosen barriers, and the other series measured the level of volatile organic acids, both the acids emitted from the paint itself, and that of the wood. One box in each series were not treated at all and was used as a reference.The fact that different types of materials emit volatile organic compounds have long been known.
Brunbjörn till höger : att hitta rätt bland djuren och bergen
This work has treated the subject of gender, with demarcation against the norms regarding appearance and beauty, conveyed by the media and how it affects society. This is expressed through social satire cartoons. This work has also led to an exploration of the importance of a personal drawing style and how it manifests itself..
Utdragshållfasthet av inlimmade skruvar i limträ
In this thesis tests has been performed on the pull strength of screws glued into glulam beams.The experiment is based on the already approved method whereby the diameter of the drilled holes is the same as the screw outer diameter of 1 mm or bigger. The screws strength class shall not be less than 4.6 (EN ISO 898-1:1999, 1999).The difference in the experiments that were performed where that the drilled diameter were 1 mm smaller than the outer diameter of the screw so that the screw thread was worked into the wood.In the tests the gluing where made on M8 glulam beams. The screws where drilled at and angel of 90°tangental to the fiber direction with a diameter of 7 mm. The gluing of the screws where made in three different depths and where later exposed to pulling forces. The results showed both pulling breaks and screw breaks when they reached their maximum capacity.
Vårdpersonals upplevelser och erfarenheter av att utföra tvångsåtgärder inom sluten psykiatrisk tvångsvård : En litteraturstudie
Background:The adult inpatient psychiatric care is regulated by law and allows certain amount of coercion, most commonly restraint, forced medication and seclusion. To be treated according to this law you need to suffer from a serious mental disorder, oppose to the care and have an indispensable need of care. Many studies describe patients experiences to be treated with coercion but few about health care workers experiences.Aim:To describe health care workers experiences of performing coercion in psychiatric compulsory care.Method:A literature review was made and eight articles is the basis for the result.Results:From the articles used inthis study four themes were created. These are coercions impact on relations, health care workers feelings during coercion, coercion as a necessary evil and health care workers need for reflection. The themes are presented as headlines in the result.Conclusion:To use coercive measures brings out many different feelings among health care workers.
Förekomst & kostnad av kapsprickor i stormaskadad skog
The aim for this study where to investigate the frequency of cutting cracks in saw timber harvested in the storm-damaged forests in regions where the storms Hilde and Ivar hit. The idea for this work came from one of the region?s biggest actors, SCA Skog and Jämtlands district. The purpose where to find out how big proportion of the saw timber that contains cutting cracks, their financial cost in lost wood value and also give advice and suggestions on how to work against the frequency of cutting cracks.
For the field-study some guidelines where used to make sure that the samples were taken under the same conditions, they were:
? The field-study must be performed under harvesting of storm-felled forest, which are horizontal/inclined trunks.
? The averaged sized tree will make it possible to harvest saw timber.
? The trunks can?t be root cut.
A methodology called in Swedish ?Trissmetoden? was used because it is the most frequent used methodology in earlier performed studies and the only one that can be used I field.
Under the field-study data were collected from 570 saw timber logs, 30 logs from each one of the tested harvesters.
Två nya trailerkoncept för transport av rundvirke hos Stora Enso : en analys av prestation och flexibilitet
The need for roundwood transport capacity vary throughout the year. The need during a period is influenced mainly by the volume transported the period, the number of days during which transport can be carried out, seasonal variations in road conditions and the weight of the roundwood, and the origin of the wood (private forest owners/ forest companies). The need for transport capacity generally increase during the winter and in spring, after thawing. Lack of logging trucks combined with a lack of drivers for these trucks make it hard to hire extra help during periods of increased transport capacity needs. It is also very expensive to keep logging trucks for use only during these periods.
In this thesis, two new concepts based on the partial transport by truck tractors have been examined, to find out the possibility for increased performance and flexibility.
Användande av diffusionsspärr vid tilläggsisolering av äldre byggnader med trästomme
In the current situation a big part ofthe settlements that exist in Sweden isin need of renovation and energyefficiency in order to survive.Therefore, also many of the older houseswith a wooden structure are in a need ofenergy efficiency, which can be done ina variety of ways, including addinginsulation.This project deals with whether the useof a diffusion barrier or a vaporbarrier affects a wall structure byadding insulation to an older house witha timber frame. The insulation materialswhich are concidered in thisinvestigation are mineral wool and woodfiber insulation. Efforts are focused onthe effects of moisture on theseinsulation materials.To demonstrate the differences thatarise the moisture measurement programWUFI have been used to simulate avariety of wall designs. These designsare developed in consultation with theconstruction carers who are active inthe industry.Using WUFI graphs illustrating themoisture levels of the wall structureswere obtained and from these conclusionsvould be drawn. The work demonstratesthe differences that arise when using adiffusion barrier or vapor barrier inwall construction.
Beskattning av löneförmåner : förutsebarheten av vissa löneförmåners skatteplikt alternativt dess skattefrihet
Not all payments that an employee receives are cash salary, but may also be salary benefits. It should not matter in which form an employee receives payment, taxation shall be equal despite the form of salary. Cash salary as well as salary in benefits are covered by a general rule in the Swedish Tax Law and shall therefore be taxed when they have a connection to the work performed. There are exemptions to the general rule as some benefits are tax free. In general, taxation shall be easy to foresee. The legal rules that are treated in this thesis have a general meaning.
Utsikten : Hållbara uppvärmningsalternativ för vandrarhemmet på Finnhamn
Finnhamn is a small group of islands in the Stockholm archipelago. At Stora Jolpan, the biggest island, there is a hostel. The main building was built in 1915 and is called Utsikten. The purpose of this project is to on behalf of the Archipelago Foundation (Skärgårdsstiftelsen) find alternative systems that can replace the existing heating system of Utsikten (an oil-fired boiler and electricity heaters) to a system with renewable energy. The alternative system that this project focuses on is a system of solar collectors combined with a wood chip boiler.
Anlockning och gnag av snytbaggar (Hylobius sp.) : effekt av plantstorlek och behandling med metyljasmonat
Two field experiments were conducted in central Sweden in order to: 1) Determine a relationship between the number of approaching pine weevils (Hylobius sp.) and the number of attacks by pine weevils, in relation to the size of seedlings of Scots pine (Pinus sylvestris). 2) Determine if application of methyljasmonate (MJ) on seedlings of Scots pine will result in higher resistance towards attacks by pine weevils and/or have any effect on the number of approaching pine weevils. The field experiments were designed with two separate parts in close vicinity on the same clear cuttings: a) pitfall traps placed in patches of scarified soil that caught approaching pine weevils at 2.5 cm from the bait, which consisted of different sized seedlings of Scots pine some of which were subjected to application of MJ and b) the same type of seedlings planted out in patches of scarified soil.
The first field experiment was conducted on a 1-year old clear cutting outside Uppsala in east central Sweden and the trapping part of the experiment consisted of 8 blocks with 6 treatments: 1) control, 2) small over-wintered seedling, 3) medium sized seedling, 4) medium sized seedling treated with 0.5 ml 100 mmol MJ 4 days prior to start of experiment, 5) large seedling, 6) vial with 9.5 ml of ?-pinene. The trapping experiment lasted for 6 weeks in the early summer.
Tornedalsk identitet : En studie om identiteter och deras påverkan på synen av den svenska staten
ABSTRACTThis C-essay in political science is written by Ingrid Karlsson, autumn 06. Advisers: Gregg Bucken-Knapp and Susan Marton.? The identity of Tornedalen, a study about identities and its affect on the view of the Swedish state.?The purpose of this essay is to investigate the identification amongst the population in Tornedalen and if their identity affects the view of the Swedish state. I am going to look into how people from that region looks upon their identity. Do they consider themselves as Swedish, Tornedaling or Finnish? I have two research questions on this topic: 1) What does a person from Tornedalen consider their identity? 2) If the way the Swedish state treated Tornedalen, from around the middle of the nineteenth century to the middle of the twentieth century, has affected the way people from this region looks upon their own culture, and if the treatment has affected peoples view of the Swedish state.
Spatt relaterad till tarsalledens vinkel
The effectiveness of Phlebiopsis gigantea to prevent spore infections from Heterobasidionannosum and Heterobasidion parviporum on hybrid larch stumps were investigated in fivestands in southern Sweden. All sites are former forest land and the age of the trees wasbetween 9 and 13 years.The study was implemented in August 2010, a month where spore dispersal should be great.The five sites were located in previously un?thinned monocultures of hybrid larch. The sporeload in the air was studied with the help of spore traps from three different tree species;Norway spruce, Scots pine and hybrid larch. A total of 146 spore traps, evenly distributed inall five sites were analyzed.
Rättfärdigandebegreppets potentiella tillämpning vid direkt könsdiskriminering : en analys av den EG-rättsliga diskussionen om utökade möjligheter till rättfärdigande
Sex equality law within the European Union is well developed and has since the Rome Treaty, given rise to several directives and other judicial acts on this matter of community law. The concepts of direct and indirect discrimination emerge from the general principles of Equal pay and Equal treatment and have been codified and amended several times until present.The lasts years, authors within the field of Equality Law has been pointing out that there is a common desire for simplification of discrimination law in Europe. The question has arisen whether this simplification could be implemented trough the introduction of a general justification defence for direct sex discrimination.The concept of direct sex discrimination - when a person of one gender is treated less favourably, on the grounds of gender, than a person of the other gender would be treated in similar circumstances - leaves no possibilities for such justification today. Indirect sex discrimination ? which arises from the equal application of neutral rules that shows an adverse impact on one group ? can be justified if the rule answers to true requirements of the job.Does the proposition that direct discrimination should be justified find support in the inconsistency of the present legislation? This paper will examine this and other questions concerning the wish for a general justification defence through studies of case law from the European Court of Justice as well as differing opinions from authors within the field of equality law..
T-Shirt med budskap : Iklädandet av en roll
This work has treated the subject of gender, with demarcation against the norms regarding appearance and beauty, conveyed by the media and how it affects society. This is expressed through social satire cartoons. This work has also led to an exploration of the importance of a personal drawing style and how it manifests itself..
"Bort med knätofsen" : en subjektivt jämförande studie mellan två musikaliska traditioner
This work has treated the subject of gender, with demarcation against the norms regarding appearance and beauty, conveyed by the media and how it affects society. This is expressed through social satire cartoons. This work has also led to an exploration of the importance of a personal drawing style and how it manifests itself..