As an amateur it can be difficult filming from several angles at the same time as this requires several cameras. It´s also hard to film at occasions when it´s not appropriate to manoeuvre the camera manually. Systems for solving these problems already exist, but it´s either more expensive, professionalsystems or cheaper systems with limited functionality.The purpose of this project is to develop a cost efficient solution to the problem above that offers a better functionality then existing commercial systems. The biggest difference from existing products is the wireless video feedback from the camera to the remote unit.The result of the project is a system consisting of two units, a manoeuvre unit with a cradle for the video camera and a remote unit from which the operator can control pan and tilt of the video camera.Communication between the two units is wireless.On the remote unit there is a joystick and a display mounted. In addition to this, there is also an IR receiver that is capable of reading the signal from the cameras own remote and sending it to the manoeuvre unit.The manoeuvre unit is equipped with one motor to control the tilt function and one motor to control the pan.

The purpose of this essay is to examine Banverket?s problems with its current financial model as it relates to reporting on operations and maintenance work, and to propose measures to simplify the model..

Denna rapport är ett examensarbete på C-nivå som görs i sammarbete med teknikkonsulten Ramböll. Det vanligaste sättet att ventilera en byggnad idag är med så kallad CAV-ventilation (Constant Air Volume). Denna metod bygger på att ett luftflöde bestäms för rummet och upprätthålls med konstant flöde. En annan metod är så kallad VAV (Variable Air Volume) som bygger på att flödet varierar efter behovet. Anledningen till varför man väljer VAV istället för CAV är att med CAV finns det ofta en stor risk att man överventilerar ett rum eller byggnad, just på grund av att flödet är konstant. Problemet med VAV är att det är en högre investeringskostnad än för CAV så metoden lämpar sig bara där energibesparingen är så stor så den täcker mellanskillnaden i pris.

There are today large amounts of contaminated sediments in the Baltic Sea. These contaminants are the result of many years industrial activity where the contaminants have not been taken care of and just released out in the water. When ports want to dredge in their fairways and harbor areas the contaminated sediments need to be considered since they are a environmental risk. The development in this area has been slow and new techniques have just recently made its way into dredging operations in the Baltic Sea region. As a result of this there are no clear methods for implementing new techniques today.

Due to increasing regulations regarding new diesel vehicles particulate matteremissions the new Scania truck, Scania Euro 6, has been equipped with a particulatefilter. This component effectively stores the particles in the exhaust gas but must becleaned in order to prevent itself from clogging. The filter is cleaned through aprocess named regeneration which is a thermodynamic process in which thetemperature of the filter is raised through fuel supplied to the exhaust gas.The purpose of this thesis is to contribute to the development of improved controlstrategies of the temperature during the regeneration process through thedevelopment of model-based controllers. These controllers are designed in order tohave good performance in stationary as well as automatic regeneration.In order to develop these model-based controllers a model of the system isconstructed. The model is described as a linear thermodynamic grey-box model withflow varying parameters, showing good results in validation.The model provides a simulation environment during the controller design, which isfocused around the development of linear regulators with the exhaust gas mass flowas a scheduling variable whose size determines controllers? mode of operation.

In this study we try to focus on the costs for wear parts on different type of soil tillage machines and at Väderstad Rapid drilling machine. We have studied some of the leading types of cultivators and disk harrows. Among the cultivators we have investigated Väderstad Cultus, Dalbo Dinkomax, Horsch Tiger and Terrano. At disk harrow we have looked at Amazone Catros and Väderstad Carrier. We have made more detailed study on costs for wear parts, working depth, driving speed and diesel consumption.

Som ett sista arbete på högskoleingenjörsutbildningen i maskinteknik på Umeå universitet så har jag sett över servicevänligheten på ett reservkraftsaggregat. Attacus Power AB har stått som värd för detta arbete och även tillhandahållit arbetsplats under utförandet.Ett reservkraftsaggregat är ofta en dieseldriven motor kopplad till en generator som alstrar ström. Denna ström kan sedan användas för att driva sjukhus eller liknande vid ett eventuellt strömavbrott.Modellen som skulle ses över heter GTC-200MSS och den är en extra tyst modell avsedd för platser som filminspelningar och liknande där ljudnivån är en viktig faktor.Det jag skulle utföra var att försöka hitta en lösning där motor och generator, med så litet ingrepp som möjligt, kunde tas ut för underhåll.Arbetet började med att olika lösningsförslag togs fram. Allt från att vicka av hela höljet, till en ny utformning av modellen. Efter att alla förslag presenterats och gåtts igenom med inblandade på företaget, så beslutades att en lösning där en truck eller liknande med hjälp av sina gafflar kunna lyfta ut motor och generator var den bästa lösningen.För att göra det enkelt för de som skulle utföra ingreppet så gjordes en enkel manual.En modell togs fram där truckens gafflar legat till grund för utförandet samt dess belastningsfall.

As emission legislations across the world continuously pushes engine development forward,engineers constantly need to come up with and implement fuel saving technologies. During thelast decade, variable cam phasing has become a popular solution to increase gas exchangeefficiency. This configuration is typically mechanically constrained by camshaft limitations, anda solution to circumvent this problem would be to use a different valve actuation principle.One example of this is to use pressurized air controlled by electrical solenoids. Such a systemhas been developed byCargine Engineering and this provides the starting point for this work. Tobe able to operate the valvetrain on an actual engine, a control system is needed.

In Sweden, harvesting pre-commercial thinning (PCT) stems for energy purposes is a interesting way of financing the high cost of preparing dense stands for a profitable first conventional thinning. This concept can be labelled bioenergy thinning. The aim of this study was to quantify the productivity of a Vimek 404R light harvester with an accumulating Naarva-Grip cutting head during the bioenergy thinning of a self-regenerated stand west of Sunnansjö in Dalarna. The stand was birch-dominated, contained 15 371 stems/ha, and measured on average 4,6 cm Dbh and 7 m tall. Even though the driver was well experienced with the machine, the stand in question was the first one that he ever thinned in this manner. Nevertheless, the driver strived to accumulate as many stems as possible during each crane cycle and chose to cut taller stems in half so as to make the handling and forwarding of the harvested stems easier.

Det här examensarbetet går ut på att utreda vilken påverkan oljeval och inkörningsmetod har på tätning mellan kolvring och cylindervägg i en fyrtaktsmotor. Arbetet har utförts på en motorcykel av märket Honda och modellen heter CBR 954 RR årsmodell 2003. Det diskuteras dagligen i tidningar, på internet och i garage runt om i världen om vilken typ av inkörning som är effektivast för att få en motor att gå bra och hålla länge. Vissa bil- och mctillverkare har helt tagit bort sina inkörningsrekommendationer medan andra fortfarande har kvar rekommendationen att man ska köra lugnt och på låga varvtal under ett visst antal mil. Eftersom att inkörningen påverkar väldigt många parametrar så finns inte möjlighet att testa hur olika oljeval och inkörningsmetoder påverkar alla dessa parametrar.

The modern veterinarian in horse practice is often consulted by horse owners concerning riding problems. These problems are more complex and show other characteristics than traditional lameness. For the diagnostic process and to give adequate advice the veterinarians need an understanding of riding terminology and problems related to riding. It is also of high importance that riders, trainers and veterinarians increase the knowledge of equine biomechanics and how these are influenced by the rider. Collection is an important concept in the riding terminology.

Large areas have been ditched in Sweden during the past 100 years to improve the forest production. Ditching and also maintenance of old ditches are operations having mainly negative effects on water quality, flora and fauna and changing characteristics of soil. The purpose of this study was to suggest a method for inventory of the need for ditching maintenance in old forest ditches that takes biodiversity, water protection and forest production into consideration. Inventory methods from five Swedish and Finnish forest companies, agencies and organisations were compared. Their employees were interviewed about their handling with ditches, forest production and nature conservation.

Spelmotor är benämningen på den komponent som hanterar en del av mekaniken i ett datorspel. Förutom funktioner för grafik, fysik etc. finns också funktioner för rörelser, interaktion med världen etc. I detta examensarbete går vi in på hur en spelmotor för morgondagens mobiltelefon kan se ut, samt vad dagens mobiltelefoners hårdvara och mjukvara saknar för att dagens PC-spel ska kunna portas till dem. Stödet för att spela avancerade spel på mobiltelefoner växer ständigt och inom några år bör hårdvaran vara ungefär densamma som på PC.

This essay is about the tactical basic principles as they are mentioned in the Swedish Doctrine for land based operations (2005) and the German side during the battle of Verdun 1916. The purpose of this essay is to clarify whether the used doctrine is appropriate to use on future attrition battles.        This is done by a case study of the German side during the battle ofVerdun. In this case study indicators of the basic principles are then identified and analysed with the starting point at the two questions that the essay is based around. The essay starts with an introduction where above is attended, in the second part the basic principles, the background to the battle and the battle itself is described. Finally the tactical basic principles are analysed and discussed based on the questions that the essay is based on.In the analysis and the discussion the conclusion is drawn that the tactical basic principles were present on the German side during the battle of Verdun and that they are of a general character and may be applied on both attrition warfare of 1916 and modern battles of attrition..

The municipal forests of Sala cover an area of 6 000 hectares, starting in the vicinity of the city and reaching north. At the same time as residents make abundant use of the areas closest to the community for outdoor activities and recreational purposes, the forest is of great economic value and also worth protecting for environmental reasons. These conditions make forestry in periurban woods more complex than conventional forestry, why a good understanding of the needs and demands on the forest and silviculture program is required. The purpose of this study is to depict the usage of the forests owned by the municipality of Sala, to set forth the common view of the silviculture program implemented by the municipality and to chart the expectations the community has on the forests and forestry of the future in the municipality of Sala. The survey part of this paper consists of the interviews of thirteen individuals representing nine interest groups. As expected the views of these individuals varied widely but some results were expressed by more or less all of them.