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662 Uppsatser om 3 dimensional wood composite - Sida 31 av 45
Kvistreaktioner vid förhöjd torktemperatur
I föreliggande arbete har mätningar och utvärderingar av kvistreaktioner utförts. Mätningar av kvistkrypning har utförts på furubräder och mätningar av kvistsprickor i högtemperaturtorkad gran. En fältstudie innehållande en nulägesanalys och probleminventering följdes av ett antal provtorkningar. Torkningsförloppen filmades med en videokamera för att detektera när under torkningen som kvistarna kröp. Torkningsscheman togs fram med hjälp av ett torkningssimuleringsprogram samt med hjälp av erfarenheter från industrin.
Beräkning av rotationscentrum för knä-och höftled. : En kinematisk modell för kroppens rörelse baserad på experimentell data.
This report is part of a Bachelor?s degree corresponding to 15 creditsat the Royal Institute of Technology, Stockholm. The work hasbeen carried out by Max Wikander, author of the report, supervisedby Lanie Gutierrez-Farewik and Erik Dijkstra.Gait analysis includes measurement, characterization and assessmentof human movement and is used to assess kinematic or otherabnormalities during gait. Center of rotation and the axis of rotationof a joint are fundamental parameters in motion analysis. However,the ability to create individualized analysis is limited by the lack ofaccuracy when these parameters are calculated.
Möjligheter att öka effektiviteten och det ekonomiska utfallet av barkhanteringen vid Seskarö sågverk :
The sludgebark and to a certain extent the bark were until a decade ago waste products without any economic value that were thrown away. A number of environmental laws and increcing energy prices have improved the prerequisites for increasing the use of these materials. At Seskarö sawmill they burn the sludgebark and a great deal of the bark in the sawmill furnace. The sludgebark has a number of disadvantages compared to bark during burning. The sludgebark is often wet which means the energy net from burning often gets low.
The effects of Gotland pony grazing on forest composition and structure in Lojsta hed, south eastern Sweden
Livestock animals affect their environment in a number of different ways, mostly through grazing and trampling. This study focused on the effects of Gotland pony grazing on forest structure and diversity, and the impact on ground cover. To compare the fenced and grazed area with a reference area outside the enclosure a number of transects were used. The study showed that there was no significant difference in height structure and diversity between the compared sites; however, there were a significantly higher proportion of damaged trees inside the enclosure. The ground cover variables showed a higher amount of bare soil, plant litter and wood-rush (Luzula sp.) inside the enclosure whilst grass was more frequent in the reference area.
Hotell- Stockholms skärgård
The hotel is located on Skatholmen in the archipelago of Stockholm, Värmdö county. The hotel building has an open structure characterized by hospitality and the nature outside. The rooms have stunning views of the island landscape and lush forest. With biodiversity and valuable nature in mind, the building has been designed with a structure that should not be too intrusive in the surrounding landscape. The building is meant to blend into the dark silhouette of the island and to give a light footprint on the topography of the landscape.The use of well-chosen materials and similar design, both in plan and facade, creates a consistent building despite the building's somewhat playful expression.
Entréträdgårdar - rumslighet, gestaltningselement, uttryck och sociala aspekter :
The BA thesis Front Yard Gardens ? spatiality, design elements, expression and social aspects is a summary of the entrance and front yard garden phenomenon ? where the entrance is the set design and the designer is the director. The thesis touches the social context of which entrances have been and still are shaped. The various appearance of the entrance and front yard gardens throughout the history, starting with the first entrance by the edge of the wood and coming up to the front yard gardens of today, is described. It touches the present day through an analysis of some entrances and front yard gardens of modern residential areas.
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.
Byggdamm : Vad krävs för att minimera spridningen på ROT-projekt under produktionsskedet
Dust that arises during the construction process is called ?construction dust?.People who are exposed for construction dust for a long period of time are atrisk to develop several forms of lung problems, allergies and cancer. Todayconstruction dust is a huge problem during the production in Skanska´srenovation projects. Every day workers are exposed of the unhealthyconstruction dust and it can cause lung problems and diseases after 10-30years. This is a problem that must be taken into account to obtain a betterworking environment on Skanska´s building sites.Skanska Sweden AB has given two students the task to investigate possibleproblems about the spreading of construction dust.
?Jag är bara en dum, gammaldags flicka? : En feministisk karaktärsanalys av Haruki Murakamis Norwegian Wood
Fotbollspelaren Zlatan Ibrahimovic var 2010 och 2011 den mest omskrivna sportprofilen i svensk press och Aftonbladet och Expressen har varsin reporter på plats i Milano för att bevaka honom och hans lag AC Milan. Syftet med denna C-uppsats är att ta reda på vad sportjournalister på Aftonbladet och Expressen tror är anledningarna till att det skrivs så mycket om Zlatan Ibrahimovic. Vidare vill vi ta reda på hur de skriver om honom, varför de skriver som de gör, vilka egenskaper Zlatan Ibrahimovic har som gör att det skrivs så mycket om honom samt vad det stora fokuset på honom får för konsekvenser. I vår analys kommer vi koppla resultatet till teorier som maskulinitet inom sportjournalistiken, virvelvindseffekt och tabloidisering.Vi har gjort en kvalitativ undersökning med hjälp av halstrukturerade djupintervjuer. Totalt har vi genomfört fem intervjuer med reportrar, krönikörer och nyhetschefer på de två kvällstidningarna i Sverige.
Bebisgeniet och den gode föräldern : En diskursanalys om böcker för bebisar inom bibliotek och bokklubbar
In recent years there has been an upsurge in products and activities designed for infants, what is known as baby culture. The essay is a discourse analysis covering the part of baby culture which is concerned with infants and books. The essay studies texts from libraries and children?s bookclubs in order to understand what it is they communicate, to whom and the conceivable consequences of the communicated message. One of the main purposes of the study is to determine what view of infants as social and cultural beings it is that arises from the texts.
Träkärnor i alpina skidor : ett examensarbete kring olika träslag och dess egenskaper som träkärna i alpina skidor.
Syftet med detta arbete är att ta fram den ultimata träkärnan utefter uppspaltade önskemål på egenskaper i ett par allmountainskidor med nordiska träslag.Studien är deskriptiv och kvantitativ då den syftar till att mäta förändringsgraden under påverkan på träslagen. För att få in data till mina frågeställningar har tester genomförts som genererar datainsamling. En förundersökning gjordes med intervjuer för att få fram ett mer specificerat underlag för att konstruera vilken metod jag skulle ha i det slutgiltiga arbetet.Resultatet av studien visade att träslaget bok hade de bästa egenskaperna vad gäller böjhållfasthet. Ask hade de bästa egenskaperna när det kom till testerna på vridstyvhet. Det negativa med dessa träslag är att de är för tunga.
Uppvärmning med spannmål och trädbränslen :
This examination work brings up opportunities to invest in a construction for heating with grain
or pellets on farm level.
As example we have chosen Fröberga Gård which is a farm located in Östergötland outside of
Söderköping.
The farm`s residential buildings is to day heated with oil and electricity.
The result of our investigation shows that heating with grain is the best alternative, partly because
of economical issues but also because you can grow the grain on your own farm and by that you
can get better economy in your seed cultivation.
To grow 16 tonne of grain as is needed demand gives a insignificant increase of work.
Further an advantage is that no investment in machines is needed because all the machines witch
is needed already is in use on the farm.
In a situation where a new investment is needed as in the case we studied, is it often profitable to
invest in a integrated furnace. Because all the components are well adapted to each other, and
because that gives a high efficiency.
If you already own a well working furnace is it often most profitable to connect a burner to it.
It is important to know that heating with grain need more work than heating with pellets, because
the high contents of ash in grain.
Even if you choose pellets instead of grain the calculation shows good results.
Because peat is an excellent but fairly untested raw material for pelletsproduction we have
chosen to watch little more on its quality and conductions.
We discovered that peat has a high heating value which makes it possible to raise the heat value
in pellets through mix up peat and wood. Or you can make pellets with only peat and get a pellet
with high heating value. Even the calculation with peatheating shows good results..
En studie av viltets påverkan på Skogssällskapets fastighet i Selesjö
This degree project investigates how elk, roe deer, red deer and fallow deer can affect an estate in Östergötland. The inventories performed within this project, were completed on an estate in Selesjö, northern Östergötland. This property is used to demonstrate wildlife management.
The methods used in this study were originally developed for areas larger than individual properties. Three inventories were completed in the study. These included the recording of the number of droppings and the amount of eaten pasturage, as well as the level of damage on young trees.
Uppföljning av träbyggnadsprojekt inom Växjö kommun
Ett sekellångt förbud mot att bygga hus med trästomme högre än två våningar har gjort att värdefulla kunskaper om träbyggandet gått förlorat samtidigt som andra material istället etablerat sig på marknaden.För utvecklingen av flervåningshus i trä har Växjö blivit en förebild för andra städer i Sverige och resten av världen. Med denna studie vill författarna skapa en uppfattning om var i utvecklingen vi står idag samt tillvarata erfarenheter från fyra representativa projekt.Målet har varit att ta fram faktorer i produktionsprocessen som påverkar tid, kvalitet och ekonomi för flervåningshus i trä. Dessutom har det undersökts i vilken grad och på vilket sätt erfarenheter från tidigare projekt omsatts i senare projekt.Arbetet resulterar i ett antal punkter som är viktiga att ta ställning till vid en byggnation av flervåningshus med en träbaserad stomme. Dessa punkter berör bl a vad som behöver beaktas vid hög prefabriceringsgrad, varför och hur väderskydd bör användas samt hur sättningar påverkar en träbyggnad. Utvecklingen är starkt beroende av kontinuitet och av att fler hus av denna sort byggs.
"Det är det största beviset på kärlek, att lämna bort för att skapa ett bättre liv" : En kvalitativ studie om att vara internationellt adopterad
I meet in my work as art teacher many students of different descent, were they, or their parents, have different school experience than the Swedish. This, in combination with therecent discussion after the Muhammad caricatures about the banning of images in Islamic religion, made me curious to study what art education in a Muslim country looked like. I went to visit the Maramra Egitim Köyü school in Istanbul, Turkey, and especially their art classesfrom grade five to eight, which are the same age of students that I have been working with thelast ten years. This was my first visit to Turkey.The question I ask is: What does the practice of Turkish art education look like, using the Marmara school as an example. Which discourses can I identify in the art teacher practice? What surprised me the most was the frequent visual exposure of the founder of the Turkishstate, Kemal Atatürk.