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472 Uppsatser om Tunnel boring machine - Sida 11 av 32
Bricoleur, digitala varelser och brus
Bricoleur, digitala varelser och brus utgör tre viktiga noder, runt vilka mitt konstnärliga arbete rör sig. Parallellt med ett antal av mina verk beskrivs dessa begrepp kortfattat..
UML som stöd vid småskalig utveckling av ett inbyggt system
This project aims at investigating if the use of UML as a support to small-scale development ofan embedded system is relevant. The investigation is conducted by using UML during the initialphase of the development ofTelfafill, a filling machine by the company ?Telfafill AB?. The aimof the development of Telfafill is to separate the user interface from the control unit. In additionto this main objective, Telfafill AB would like possible changes to, and additions of,functionality of the filling machine to be investigated.Within the boundaries of this project, the development of Telfafill reached a full requirementspecification of the proposed system, and contact was made with potential external developers.No prototype construction had been started when the project ended.
Kan man räkna till 100, kan man mycket : Barns tankar, funderingar och förståelse kring matematik
This study was designed to describe and understand how children perceive and explain mathematical situations. During our work based training we have met several students who have been insecure in the subject of mathematics and therefore come to think that it's difficult and boring. The questions we have asked ourselves are why and how this insecurity occurs. In preschools around the country teachers actively worked to create opportunities for children to meet and discover mathematics. The question is whether the teachers are aware of how children perceive mathematics and how children think in mathematical situations. We chose to conduct a qualitative study using different methods of data collecting in order to approach the children's world.
KVÄVEUPPTAG HOS FÅNGGRÖDORNA VITSENAP OCH OLJERÄTTIKA VID OLIKA ETABLERINGSMETODER :
The object with this thesis is to evaluate which of the catch crops oil radish and white mustard in combination with establishment method, give the most effective nitrogen uptake.
The main purpose of the catch crops is to reduce leakage of nitrogen. They are sown after the main crop and killed before the next crop. In Sweden the farmers gets subsidies to establish catch crops.
The thesis is limited to the trail L3-9010 sited at HS- Malmöhus, Borgeby Gård, 237 91 Bjärred, Sweden, 2007. Only treatments with oil radish, white mustard and the reference treatments were studied.
IPv6 : Övergångstekniker
Större krav på fler IP-adresser i framtiden har gjort IP(v6) till en tänkbar efterträdare till IP(v4). Sedan utvecklingen av IP(v6) runt 1994 står den fortfarande i skuggan av IP(v4). Detta beror troligen på att IP(v6) inte är bakåtkompatibelt med IP(v4), vilket leder till hög kostnad och energi att ersätta världens nätverk med IP(v6). Detta problem har gjort att ett flertal övergångstekniker har utvecklats. Detta kan vara genom att använda IP(v6) genom en dedikerad tunnel till att använda IP(v4) och IP(v6) parallellt. Dessa övergångstekniker skiljer sig åt när det gäller funktion och användningsområde, vilket gör val av övergångsteknik svårt.Denna rapport handlar om dessa övergångstekniker.
Matematik ses som tråkigt och svårt - hur kan elevers motivation och självkänsla hanteras?
Abstract__________________________________________________Sara NilssonAnnette OlofssonMatematik ses som tråkigt och svårt? hur kan elevers motivation och självkänsla hanteras?Mathematics is viewed as boring and difficult? how can pupils? motivation and confidence be dealt with?Antal sidor: 42__________________________________________________This report delves into primary school pupils? difficulties in mathematics, with emphasis on their lack of confidence and motivation. By researching literature and Internet sources associated to this issue, an in-depth view of these problems has been illuminated. Two teachers at a Swedish primary school were interviewed, in order to get their perspective of the matter. Questionnaires were sent to two teachers at an English primary school and their responses were returned.
Högstadieelever, bloggar och genus
Today's young people find themselves in an intense media traffic where many messages have a commercial nature. Some such messages are for example different types of advertising in various media and advertising often plays on the uncertainty that may be common in adoles-cence. New interactive media like blogs on the Internet has been established in recent years. Mixed types of media content, advertising with different messages, appear in blogs. Therefore, I am interested in how blogs on the Internet can influence young people's creation of their identity.
Marknadsundersökning - Väderstad, Rapid och kundnyttan :
In the town of Väderstad which lies in the middle of Sweden, called Östergötland is Väderstad-Verken situated. It´s an international company which produce machines for land processing and sown to farmers all over the world. Väderstad-Verken is an expansive company with 750 employees. The turnover is 1.4 billion sek. Rapid seed-sower has become a popular machine since it was introduced in 1991.
RA Detect - Antikollisionsskydd förlantbrukssektorn
SecRePac is a household appliance that simplifies sorting of packaging such as milk, juice and yogurt containers. By shredding the packages SecRePac reduces its volume uptake both in the home and at the recycling station. This leads to minimization of both transports to the recycling stations and truck transport for emptying the containers at the recycling station.The greenhouse effect deteriorates and becomes worse and worse leading to extreme climate changes and natural disasters such as floods as an example. Carbon dioxide emissions are the major reason for this and at least 30 percent of all these emissions come directly from transports. In the EU carbon emissions has decreased in the past few years.
Lyftkraftsberäkning för vingprofiler: Virvelpanelmetoden
The problem presented in this report is that of finding a method to calculate the lift force from a single-element airfoil of arbitrary shape. A number of restrictions are used in order to simplify calculations while retaining reasonable accuracy. The problem is solved for the two-dimensional case only and no finite-wing effects are taken into account. Furthermore, inviscid and incompressible flow is assumed. The method used to solve the problem is the vortex panel method, with vortex singularities distributed over simplified airfoil geometry.
Den nöjda och osynliga bibliotekarien : Myt och verklighet - Vad är trivsel för bibliotekarier?
The aim of this thesis is to explore the job satisfaction of librarians and try to nuance stereotypes, which the public has and which still exist in massmedia concerning librarians and their work. The study is qualitative and based mainly on semistructured interviews with ten libraries born between 1937s and 1973s of which eight are women and two men. Furthermore, I have divided them into two groups according to age in order to see if there are differencies between the older and the younger concerning job satisfaction. In addition, I have used participant observation to some extent. My assumption is that job satisfaction is effected both by individual factors and environmental factors at work.
Konstruktion av en Telesvarsterminal
Telia Telesvar is an automatic anwering machine that is provided in your stationary telephone at home. The drawback of this is that you cannot see if anyone has called you. This report describes how a terminal for Telias Telesvar could be designed. Telesvar terminal will show in a display if anyone called you and show the incoming number. It will also play the spoken message in a built in speaker.
Systemanalys flingtork : Produktionseffektivisering
BillerudKorsnäs is a leading global provider of primary fiber-based packaging materials and on Gruvöns Bruk in Grums, they have chosen to invest millions in the boiler at the facility to increase the total capacity of the factory. This results in the Pulp Flash Dryer at Gruvön being burden more, which makes it important that it is of great reliability and can be run with a high capacity. The reliability of the Pulp Flash Dryer at Gruvön is not as good as one could hope, which leads to reduced availability and production, as well as to increased maintenance costs. There are a number of different reasons for this, but all the casual links are not known.The purpose of this project was to perform a system analysis of the Pulp Flash Dryer to identify bottlenecks and the most critical parts from a capacity- and availability perspective. Appropriate methodology for the system analysis was used and would be used in a structured way to perform the analysis with data from the process and the maintenance system.
Nyttan av LCC-analyser vid planering av underhållsarbete i SL:s spårtunnlar
Detta examensarbete syftar till att belysa hur LCC-analyser i dag används vid planeringen av underhållsarbeten i tunnelbanans bergtunnlar.SL är ett aktiebolag som ägs av Stockholms Läns Landsting och ansvarar för den landburna kollektivtrafiken i Stockholms län, vilken inbegriper tunnelbanan. Stockholms tunnelbana invigdes 1950 och har sedan dess byggts ut i etapper. Drygt hälften av sträckningen går i tunnlar.Ett ständigt pågående underhållsarbete av tunnlarna krävs för att säkerställa en god funktion. Ibland är även större underhållsåtgärder nödvändiga, vilka, genom exempelvis avstängning med ersättningstrafik, till större utsträckning påverkar omgivningen. Hur underhållet organiseras och planeras är av stor ekonomisk betydelse och hänger även direkt ihop med anläggningens standard.LCC-analyser resulterar i ett mått på en investerings sammanlagda ekonomiska konsekvenser under dess livstid, inkluderas gör med andra ord bland annat investerings-, drift-, och underhållskostnader.
Kostnader vid gallring med flerträdshanterande aggregat, från skog till industri
Profit in first commercial thinnings of today is hard to achieve. This is because of prevailing pulpwood prices and because of high costs of logging and transport. To reduce these costs higher productivity is advocated. One way to increase the productivity is the use of multi-tree handling harvester heads. The aim of this study was to calculate logging and transport costs in first thinnings, where multi-tree handling has been used.