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71 Uppsatser om Bridges - Sida 2 av 5
Stommaterial för villor - trä eller betong?
We have the tradition in Sweden to build villas and houses with a wooden framework. It has become natural for us because we have so much forest in our country. Building with wood has advantages, it is easy to process, but also disadvantages, as it is sensitive to moisture.Finland has long made use of the thermal blocks to build villas. It is a type of bricks that are a bit like a sandwich element, with a core of EPS and concrete on both sides of the core material. The concrete is hollow, so that after the walls has been bricked up you pour concrete into the hollow bricks.The issue of this report is to find out if concrete can be an alternative to wood as framework material in villas.
Statusbedömning och förbättringsförslag för startkedjemaskineri, startkedja och linspel för stränggjutningsmaskin
The main goal with the master thesis has been to do a status evaluation of the chain machinery with its start chain and wire to secure the production on a short basis due to that a reconstruction is not planned at this time. An evaluation of the condition of the start chain and the rollers in the chain depository has been done. An offer has been requested for a new start chain and the evaluation of the start chains may be a basis for the decision taking. The production has been able to go on, although it has arisen some problems which have been difficult to find the causes for. There is no gathered ?picture? of the machinery status and a mapping of each machinery has been compiled of comprehensive logs.
Värmeförluster vid utvändigt placerade ventilationssystem
To be able to handle tomorrows need for limited energy consumption we need to reduce our use of energy. The building sector stands for around 40 % of all energy consumption in the society. The government has put up a goal to reduce the energy consumption in our buildings with 20 % by year 2020 and 50 % by year 2050 compared with year 1995. To be able to do reach that goal we need a more energy efficient building stock.The main part of the energy used in our buildings is used for space heating. By installing ventilation systems with heat recovery on the exhaust air it is possible to use the heat-energy in the exhaust air to warm up the incoming air.
Drivenhet för satellitantenner
The task in this master thesis was to design and construct a prototype of a satellite antenna driver unit. The unit is to be robust and work in cold weather down to -40°C, so that it can be mounted on the roof of a minibus. A microcontroller controls the H-Bridges simultaneous, each connected to an electrical motor. Hardware and software protections were implemented to ensure that the antenna can not turn outside its allowed area and risk breaking. The unit can output voltages at many different levels and communicate at a multitude of signal standards..
Vattenvård vid slutavverkning : före och efter vattenvårdsutbildning på Stora Enso Skog, distrikt Siljan
In 2006, Stora Enso Skog implemented an education program in water management for
harvester operators, timber purchasers, cut block planners and supervisors. The focus of the
program was creating stream crossings with minimal harm to the stream and the surrounding
riparian area. This main purpose of this study was to determine the difference in work
procedures before and after participating in the program. The methodology consisted of field
studies and interviews with harvester operators and their supervisors.
The field study looked at how the streams had been crossed concerning the number of
crossings, visible damage to the stream and/or the riparian area made by the machines.
Biological parameters such as the width and dept of the stream and amount of large woody
debris in the stream were also measured.
The field result from 30 harvesting sites showed no significant difference between sites that
had been harvested before or after the education program. But the harvester operators and
their supervisors experienced an increased concern for watersheds after the educational
program.
Jarlabanke U150 : En runsten för mycket?
This paper deals with U 150, a rune-stone raised by Jarlabanke, a wealthy man who lived in the 11th century. He raised about 7 rune-stones telling us that he made Bridges, roads and was the owner of the whole of Täby. U 150 is carved with ornaments that seem to be a lot older than the other ornaments of the Jarlabanke stones that Jarlabanke raised for himself, while he still was alive. It is argued that the rune-stone U 150 was in fact made by another man called Jarl Banke (not Jarlabanke), who was a Jarl in the 11th century and is mentioned on at least three rune-stones in the same area as the Jarlabanke rune-stones..
Isolerande balkonginfästningar : Thermally-insulated balconies
In this work a study has been performed to show the different kinds of insulated balcony connections exists on the market. In the work there is also a short description of thermal Bridges concerning balconies. A description of older solutions for balcony connections is given as well as a calculation of the difference in energy costs for a insulated balcony connection compared to the standard connection. The work includes a short description of the different products. After that there is a short information about their insulation properties, durability, acoustic performance, assembly, computer programme and a short analyses for each product..
Förbättringsförslag pådaglig styrning
The Swedish Transport Administration manage nearly 4,000 railway Bridges in different condition and age around the country. These Bridges is in constant need of maintenance and requires continuous inspections. This thesis is designed as a damage investigation on a single-track railway bridge south of Solvarbo in Säter municipality. The railway bridge is in operation and serves over 10,000 trains a year, everything from speed trains to freight trains. The bridge is built as a beam bridge, simply supported over a road.
Vinterträdgårdar ur ett byggperspektiv : En undersökning om byggandet av vinterträdgårdar
The purpose of this of this essay is to explore the construction of a conservatory that is livable allyear around. When you build a conservatory there are several factors that need to be regardedthat usually are of no importance when you build a regular conservatory. The glassed facadeneeds to have a very good U-value and all the parts of the facade need to be isolated and theconstruction needs to prevent thermal Bridges.In this essay we will start by looking at the shape of the conservatory. Due to the façade consistsof glass the conservatory will need to have a good ratio between the area and the façade so thatthe heat losses will be at a minimum. However, due to the fact that one of the sides of the façadeis connected to the warm house, you quickly realize that the shape of the conservatory is of noimportance.There are two common ways to build a foundation for a conservatory, a molded concretefoundation and isolated wooden beams.
Vad är krig? : En idéanalys av krigets aktörer, mål och medel
War has for all through the years adopted various guises and been performed by various actors for a wide variety of destination. But what is really a war? Why is war fought? How is war fought? By whom is war fought? Machiavelli, Clausewitz, Kaplan, Kaldor, Creveld and Krulak are just a few among others who have made valiant attempts to explain war and its nature. What did they find? This essay maps out their studies in the hope of finding some kind of continuity that can give a clearer picture of what war really is.
Byggnation av ett tak i Lwengo Basilla : En fältstudie med fokus på infästningar, pelare och bärläkt på en skola i Demokratiska Republiken Kongo
The Swedish Transport Administration manage nearly 4,000 railway Bridges in different condition and age around the country. These Bridges is in constant need of maintenance and requires continuous inspections. This thesis is designed as a damage investigation on a single-track railway bridge south of Solvarbo in Säter municipality. The railway bridge is in operation and serves over 10,000 trains a year, everything from speed trains to freight trains. The bridge is built as a beam bridge, simply supported over a road.
Utvärdering av Hultdins prototyp för portabel bro (drivningsbro) :
Stronger demand has been put on forestry to show environmental considerations during harvesting. This is especially for crossings of brooks with sensitive elements and great care should be observed when they are to be crossed during harvesting by logging machines. For that reason Hultdins has constructed a portable bridge that can be used for those occasions. The bridge has been developed in accordance with wishes from SCA forest, since they have a great deal of brooks in their forests and in private forests from where they buy part of their wood supply.
The aim for this report is to investigate if this portable bridge can be of interest for the forestry market. The research has been made at SCA skog in Medelpad and Norrskog in Medelpad.
En Studie i Optimism, Lycka och Livstillfredsställelse
Syftet med denna studie var att inom den positiva psykologins ramar se hur optimism (LOT-r, Scheier, Carver, & Bridges, 1994) förhåller sig till lyckonivå (OHQ, Hills & Argyle 2002) och livstillfredsställelse (SWLS, Diener, Emmons, Larsen & Griffin, 1985) och om detta skiljer sig i kön, civilstånd och ålder. Studien undersökte också vad som gör individer lyckliga. Urvalet var av snöbollsmetoden och 106 respondenter deltog där 47 var män och 59 var kvinnor. Civilstånd delades upp i tre kategorier, gifta/sambo, särbo och ensamstående. Ålder delades upp i tre kategorier, 18-29, 30-49 och 50-74.
Ingenjörpluton : Kung på en sak eller klåpare på tusen?
This essay is about the engineer platoon. The engineer platoon has many different tasks and from my own experience sometimes too many. The platoon is able to build Bridges, clear mines and to perform all kinds of construction work in rural or in urban terrain.In this case study I compare goals/demands for the battalion to goal?s set up for the company and finally what effects this has on the engineer platoons abilities. The main question is, if the engineer platoon really can solve all tasks given to them in the document TOEM? Abilities such as effect, protection and movement are the bearing parts of the case study.The materials I have analyzed are mostly from documents published by The Swedish Armed Forces.
Djur som sociala katalysatorer : En studie om hur djur kan påverka socialisationen i behandlingsarbete
The aim of this study was to investigate whether there is a social-psychological relevance in allowing animals to be involved in therapy work. I have examined if the animals may contribute to effects on human relationships between caregivers and patients, and if the animals can contribute to helping patients to achieve better well-being. Through previous research and a quantitative interview I have received answers to the following questions: How are animals used in the treatment work? How do animals affect the relationship between caregiver-patient? In what ways do animals in treatment affect relationships between people? How do the professionals who work with animals believe that animals can affects the patient? I have interviewed people working in different kinds of treatment work using animals. The areas examined include work with animals at youth care, police, disability care, elderly care and school.