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2421 Uppsatser om Spare parts - Sida 7 av 162

Autonom bil med enkapseldator och ultraljudssensorer : tillämpning av en Arduino mikrokontrollerplattform och HC-SR04 sensorer

 Autonomous cars or robot cars havebeen on the agenda ever sinceHollywood started with their Sci-Figenre, maybe even before that. A lotof things have happened since then andnow the self-driving vehicle is notfar away. In this project, theAutonomous car with microcontrollerand ultrasonic sensors, we are lookingat a way of making a small, regular RCcar autonomous with relatively simplemeans and investigate how the bigcompanies does it to learn more aboutthe development of the autonomous carsand their technology.We used an Arduino Uno R3 supplementedwith an Arduino Motor Shield R3 as ourmicrocontroller board and three HCSR04ultrasonic sensors. By removingalmost all of the old parts of the RCcar,except the two DC motors, andreplacing them with these new parts wemanaged to make a vehicle that drovearound in a room without crashing intoanything. We could have used entirelydifferent sensors, or supplemented theexisting setup with other sensors tomake it even more accurate andobstacle avoiding.

Monteringslösning till dörrkarm

Dooria Sweden AB is one of the main door- and doorframe manufacturers inSweden. They deliver door frames for indoor use for project oriented buildingsites, for these types of building sites the doorpost comes pre-assembled. DooriaAB wants to minimize transport to reduce impact on environment and thetransportation costs of pre-assembled doorframes, this thru simplifying themethod of assembly.The main purpose of this thesis has been to develop a prototype solution thatbrings the three parts of the doorframe together with the same properties regardingstability and tightness of joints as the current method of assembly. A profile ofdemands and wishes were created in collaboration with Mårten Dragstedt, DeputyDirector of Dooria Sverige ABBy following the chosen method the authors have been able to produce a fullyfunctional prototype that meet the demands that were put on the product. Catia V5R20 has been used as an aid during prototype construction and virtual tests.

Ungdomars attityder till det omgivande samhället : En enkätstudie av 35 ungdomars attityder analyserat utifrån socioekonomiska faktorer, uppväxtmiljö samt fritidsvanor

Youths tend to have a bad reputation. Their outspokenness and spontaneity are two of many reasons to why they are seen as rude and disrespectful. The creativity, curiosity and not least the courage to have opinions and attitudes are in such young age not yet weakened. Youths, their thoughts and attitudes change quickly. This essay will deal with a selected group of youths and their attitudes to the surrounding society.

Utveckling av kyl- och smörjsystem för ekobilen Agilis HCCI motor

Every year, KTH participates in the Shell Eco Marathon, a competition whose goal is to design a vehicle that can go as far as possible using only the equivalent energy of one liter of petrol fuel. This year, one of KTH?s contributions to this race is the Agilis prototype; a car powered by a uniquely configured HCCI-engine developed at the university. The engine is dependent of several subsystems in order to work properly, among other, systems for cooling and lubrication.Combustion engines are in need of a cooling system that reduces the heat developed during the combustion. In general, two main types of cooling systems are employed; either air cooling, where the outside of the cylinder is exposed to a flow of the surrounding air, ore water cooling, where water flows in tubes around the engine, and the heat are transferred by the water to the surrounding air through a heat exchanger.The purpose of the lubrication system is to prevent the friction that builds up in the interference between moving parts in the engine.

På väg att bli vuxen: unga flickors upplevelser och uppfattningar om bibliotek

The purpose of this Masters thesis has been to examine the importance of libraries for girls leisure time in secondary school. Focus has been on the use of the library as a leisure activity. Interviews were carried out with six girls of the ages 13 to 16. The conclusion of the study is that the library is of importance for the girls mostly through its books. Reading turned out to be an important leisure activity for the girls and the books provided by the library were of significance for their identity development.

Djurskydd för paragrafernas eller djurens skull? :

The purpose with this thesis was to form an opinion of how the animal welfare in Sweden is experienced by both farmers and animal inspectors. A great part of this work consists of an inquiry concerning the south and the middle of Sweden. We sent the inquiries to milk and meat producers and to animal inspectors. The response was high, which indicates that this is a subject that affects many people. Our literature study is mostly made on the library bases LIBRIS and LUKAS. The facts we found there were directed towards animal experimentation and furred animal breeding. In order to compare with earlier results we used investigations that had been made by Riksrevisionen 2003. There is a difference in opinions about the new Swedish animal welfare agency that started first of January 2004.

Investeringsbedömningsprocessen för strategiska investeringar - en fallstudie av NordiCorp

The aim of this study is to examine the investment decision process for investments that arise due to strategic changes and are of strategic importance to the company. At the foundation of this study is the previous research in this area, done by King (1975) and Bower (1970), which examines the investment process on a more generic level. At the core is the investment decision process pertaining to Projekt X, an investment performed by NordiCorp. Having conducted a case study including six interviews with employees from various parts of the organization, combined with a large number of internal documents, the process regarding the investment decision was carefully illuminated. The results show that in many regards, this process follows the more generic investment process.

"Det skall vara roligt och spännande!" En studie av 9-12-åriga flickors fritidsläsning.

This is a thesis about 9-12-year old girls and their leisure reading. The purpose of this study is to examine their reading experiences. The method we use is a combination of qualitative interviews and studies of literature. The thesis shows that there seem to be four basic needs in girls that can be satisfied by leisure reading; the need to develop language skills; the need to be entertained; the need to gain knowledge of the world and the need to get help to resolve personal issues. The interviews with nine girls show that they primarily read for fun and that the knowledge and insights that are conveyed in literature come in second place.

Konflikten i Baskien : -Kan konsensus uppnås?

The aim of this essay is to examine the background to the ongoing conflict between Spain and Basque. The conflicting parts and the opportunities of an agreement regarding a permanent cease-fire will also be examined. I chose to write about this conflict due to the fact that it has been going on for a long time, and is still going on.In order to be able to conduct the survey of this essay I have studied a wide range of books, reports from different institutions, and articles. I have strived for objectivity and to retail a fair description of the situation.To get a better understanding of the conflict the essay starts with history of conflict which has its beginning in the fifteenth century. Further on the essay is going to examine the conflicting parts that exist nowadays, and also the acting of different Basque political groups and the acting of the Spanish government.

Varför läser pojkar så lite skönlitteratur? : Vilka orsaker ger de själva?

I have in this thesis looked at the reasons for why boys, in upper school classes, read so little fiction. Several surveys show that boys in their teenage years stop reading fiction. If they read fiction it is only as a school assignment and not as leisure. There has been research done in boys attitude towards literature, but there hasn?t been any research done asking them about why they don?t read fictionI have interviewed a group of boys about their reasons, and attitude, for why they don?t choose to read fiction on their spare time after school.

Produktutveckling av en storleksreducerbar gästsäng

This report is a result of a degree thesis at Luleå University of Technology together with Stram AB in Växjö. The project aimed to develop a size reducible bed, that gets small when folded and has a new slim design. The development of the new folding bed had the purpose to give Stram AB new ideas of how guest beds can look like and be used in the future. Information about Stram´s products and also information of other similar products on the market was gathered. A visit at a store, internet and interviews gave grater insight of the market, and of customer needs.

Från produkt till prenumerationstjänst

The use of subscription services directed towards customers has become a common phenomenon in a vast number of different industries. We have noticed a clear trend of new businesses emerging solely offering subscriptions, and existing companies altering sales of their products to become parts of subscriptions. But research has not caught up with this trend yet, especially regarding why it occurs and how it affects existing businesses internally. The purpose of this study is to examine the driving forces for change and examine how existing businesses have to change parts of their business models to offer subscription services. The premise of this study has been Vargo & Luschs (2004) Service Dominant Logic with their foundational premises and Business Model Canvas by Osterwalder et.

Potentiella armeringsfel inom byggproduktionen : En generell studie

Reinforcement is of great importance to fulfill the dimensioned strength of a concrete construction. This requires that the work needs to be carried out with adequate results that neither endangers the workers or the safety of the construction. Progressive development of the planning phase, construction documents, and construction methods is in constant need since the technology constantly evolves.In order for contractors to be able to get acceptances from their quotations requires that they have to increase their working pace in order to be able to leave a quotation with a lower price than the competition.Due to the increasing pace the different parts involved in the construction process is subjected to time pressure. The design stage, construction documents, work preparation and the execution are all affected when everything has to be finished quickly. To avoid problems, it is required that all parts are able to deliver good quality solutions and results under the influences of time pressure, which is not always easy.

Magnetfält alstrade kring nätstationer i samband med lokaldistribution av elkraft : Magnetic fields generated by electrical substations during distribution of electric power

Abstract: This report covers primarily the work of documenting electromagnetic fields generated by one of the later parts in the electrical power distribution chain: The electrical substation, wherein 10 kV is transformed to 400 V for use by private consumers. Thus it is one of the most widespread and frequently occurring parts in the Swedish power grid and of particular interest, as electrical substations are found everywhere in populated areas, often in close vicinity to people and animals.The report deals with a number of formulated questions and/or hypothesis? stated at the onset of the work undertaken, theory that is relevant for the topics the report covers, the details of the field work undertaken and the following analysis of the readings, which in term provide answers for the questions stated in the beginning. It also covers what is the currently known short term and long term risks associated with electromagnetic fields in the power frequent spectrum and of varying intensity in the vicinity of humans.The analysis also provides recommendations and identifies several points to carefully consider when planning for new installations or replacements of some parts of existing installations.For enhanced reading comprehension there is, aside from sections with pictures and attached explanatory texts and templates, several graphs, one-line diagram and maps of the power grid among the appendixes to the rapport..

Allergifritt hus

This report consists of two parts, out of which the first deals with the planning and designing ofa small house in the Swedish city of Huddinge, using the weather conditions of the Swedish cityof Malmö. The house has to be in accordance with the Swedish building- and constructionregulations, as well as with the limitations in energy consumption given.The house itself has to consist of at least two bedrooms, and blueprints of the house, variousconstructional elements, ventilation, sanitation and electricity have to be drawn. Calculations ofthese aspects also have to be made, to ascertain that the different parts function as they should,and that the dimensions are sufficient.The second part is called ?Allergy free home?, and investigates how indoor climate affects us,and whether it has changed during the last few decades. It also makes an effort to see whetherthe increase of allergies and asthma is correlated with possible changes in indoor climate, andwhether technical solutions might help to handle or even decrease the issues arisen.

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