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3118 Uppsatser om Engine control - Sida 65 av 208

Uppdatering av borrenhet

Examensarbetet utfördes på Atlas Copco Rock Drills och det gick ut på att uppdatera en borrenhet med Rig Control System. Det är ett datastyrt hydrauliksystem som möjliggör automatisk borrning. För att få automatisk borrning behöver borrmaskinens position mätas med hög noggrannhet och en lösning kunde presenteras som uppfyller det kravet. Projektet startade med att ta fram olika förslag i form av koncept som sedan utvärderades med personal från Atlas Copco. Resultatet blev ett förslag som sedan vidareutvecklades och kompletterades med produktionsritningar och strukturer..

Rekryteringsstrategier inom marknadsföring och kommunikation : En kvalitativ studie avhur individer och organisationer hanterar sökandet efter medarbetare/arbetsgivare och hur rekryterare skapar matchning

This paper describes and analyzes how individuals and organizations that operate in careers in communications and marketing deal with the search for employees / employers, and how recruiting managers and recruitment consultants are working to create a match between the parties. The study was conducted on behalf of a recruitment agency that offers services in recruiting and staffing for organizations in communication and marketing. The empirical material consists of ten qualitative interviews from three different perspectives on the labor market, recruitment consultants, managers and employees. The interviews were analyzed from sociological and social psychological theories of organizations and individuals opportunities and strategies in today's western labor market. Conclusions that emerged are that organizations need for decreased amount of tied assets provides increased need for temporary employments.

En studie om studenters upplevda kontrollokus och akademiska motivation i relation till arbetslivserfarenhet och ålder

Syftet var att undersöka skillnader mellan olika studentgrupper uppdelat efter år av arbetslivserfarenhet och ålder. Detta för att se om arbetslivserfarenhet och ålder hade någon betydelse för studenters interna motivation, externa motivation, amotivation och kontrollokus. I tvärsnittsstudien deltog 71 studenter (60 kvinnor och 11 män) från en högskola i Mellansverige och deltagarnas ålderspridning var 19-47 år. Undersökningen byggde på två enkäter; The Academic motivation scale (AMS-C28) for college students (Ryan & Deci, 2000) och Academic locus of control scale for college students (ALC) (Trice, 2013). Statistiskt signifikant skillnad fanns mellan en studentgrupp som var 19-22 år gamla och en studentgrupp som var 26 år och äldre på kontrollokus, där resultatet visade att den äldsta gruppen upplevde mer externt kontrollokus än den yngre gruppen.

Fågelbär (Prunus avium L.) - överlevnad, höjdutveckling och skador i unga planteringar på småländska höglandet :

Plant survival, plant damage and height growth were studied in nine wild cherry (Prunus avium L.) plantations in southern Sweden established between 2000 and 2002. All stands were located to the county of Småland. The survey was conducted during May and June in 2007. During the survey the height, diameter and quality of the cherry trees were recorded. In one stand, red ? berried Elder (Sambucus racemosa L.) was a dominant species.

Utveckling av Prisjakts butiksomdömessystem

This thesis work is the result of the company Prisjakt?s wish to develop and improve its current system of opinions for online stores. The challenge was to develop a similar system that competitors are using but better. The collection of information is based on purchases and are collected from Web-shops. The purchases can then be monitored in a control panel.

Aktivering av trafiksäkerhetskameror : En studie av kameraaktiveringens effekter på fordonshastigheter i Sverige

During 2006 an estimated number of 150 persons are supposed to have been killed in road accidents caused by speed limit violations. Through Automatic traffic security control (ATK) the Swedish road administration (Vägverket) is working towards lowering the number of speed related accidents. By placing the speed cameras on roads they've managed to lower the average speed at those places. The enlargement of the number of speed cameras is based upon knowledge about for example how high the risk is for speed related accidents on the roads. The speed cameras always measure the speed in which every vehicle passes, but aren't constantly activated to register speed violations.

Grönare på andra sidan Mediebilden av cannabis i tre skandinaviska länder

Authors: Patrik Jäverbo & Jon LindheTitle: Greener on the other sideLevel: Bachelor of JournalismLocation: University of GothenburgLanguage: SwedishIn later years the strict laws and policies surrounding cannabis use have been questioned around the world by several influential leaders, among them US president Barack Obama and former UN secretary general Kofi Annan. It has been argued that the ?War on Drugs? has done more harm than good and in some American states and a number of European countries the drug have been legalized or decriminalized. Everybody does not agree however, that legalization is the best course of action and in Sweden the emotions have sometimes run high in the discussions taking place in television shows and newspapers.The purpose of this study is to examine the image media portrays of cannabis; based on the theory that mass media is an important influence on the individual and the way in which he or she views the world. To put the result into a context the Swedish media image will be compared with the one in Denmark and Norway.

AB Volvo Pentas emballagesystem - processen och förpackningslogistisk betydelse

Title AB Volvo Pentas packaging system ?process and packaging logisticsAuthor Peter Powell, Lund's Technical CollegeSupervisors Annika Olsson, Lund's Technical CollegeJan Svensson, AB Volvo PentaProblem - Packaging requirements ? Which requirements are there, how do they affect each other and how are they fulfilled?- Packaging process ? what is the line of action when developing new packaging and making adjustments in existing ones? Who has the responsibility to do what?- Packaging logistics ? How is the packaging system adapted to transport efficiency and handling?Objective To create an overall picture over how the packaging system affects and is affected by different functions and players within and beyond the company boundaries, to give a clear picture of how changes in the packaging system is made today and how it could work and finally to give suggestions for cost savings affected by the packaging system.Method The methods used for this thesis has mainly consisted of action research and at some extent case studies. As a previous employee at the department of logistics at Volvo Penta I?ve taken part of the environment, information and prerequisites that this thesis discusses on a daily basis. Case studies have been used for the collection and analysis of data concerning packaging logistics as I?ve chosen to consider only specific markets and packaging.Conclusions This thesis has highlighted the demands that are placed upon engine packaging throughout all concerned units and how these demands affect each other, positively and negatively.

Faktorer som påverkar sockerförlusten vid lagring av sockerbetor : inverkan av lagringstemperatur, lagringstid och vattentillgång

This thesis is a part of the project "Sustainable harvesting and storage of sugar beets, more sugar to practice". The work has included a large part of practical experimental work with weight measurement, graduation and storage planning. The aim of the project is to be able to see whether the cultivars react differently in different storage conditions. The project has included storage under controlled conditions to give as accurate results as possible. To be able to mimic the farmers own preconditions the samples was harvested with a conventional Holmer.This project has two parts, one concerning the nature, time and temperature on storage where a number of different cultivars where investigated during three different recording times, two different temperatures and controlled in a controlled environment.

Ruins of Wilderness : sensual Spaces in between

Ruins and derelict places have since long fascinated and attracted humans. With my starting point in the wild vegetation and the spontaneous activities taking place on derelict land and in industrial ruins, I explore with help from the theoretical sociology, what creates not only this fascination but also fear. The purpose of the thesis is to explore and exemplify how the industrial ruin as a place outside the restrictions and control as well as design intentions of modern society can be used as an inspiration in a landscape architecture context.The modern city consists of areas and places with a well defined purpose. A piece of derelict land or a disused building is instead ambiguous, undefined and open for new purposes. However described in negative terms, these placesare often perceived as places of mystery and magic.

Investeringsprocesser i storbanker - en undersökning på tre svenska storbanker

There are no general working processes that can stand for how all the investment process is preceded in the organization of major Swedish banks. It is not a question of investment process but rather a question of, investment processes. How these investment processes operates depends totally on the type and size of the current investment, which unit that is operating the processes and what situation the bank currently finds itself in. There is a written form that describes how the different processes should be operated and which capital budget models that should be used but the usage of these forms can be questioned.

Hardware-in-the-Loop simulering av motorservon på ett inbyggt system

This report presents a master thesis project performed at Elekta AB during the fall of 2013 and early 2014. Elekta is a medical technology company and their main product in the Stockholm office is a gamma knife used for radiosurgery. The gamma knife contains a cluster of a dozen motor servos and motors used for adjusting the patient and the radiation sources over a CAN bus. A self-developed hardware-in-loop simulator running on a PC with LabVIEW is currently being used for integration level testing of the control system of the gamma knife. The simulator has some problems with it not running in real-time and having other performance issues.

Provning av parallellkopplade hydraulpumpar i hjullastare

Volvo Construction Equipment is a world leading company in construction machinery. Tomaintain the best products, development is prioritized. The master thesis regards sound reductionof the hydraulic system on a wheel loader. The background to the master thesis is asimulation made on the hydraulic system, performed autumn 2005. The result of the simulationshows that the energy of the pressure ripple is reduced when the paralleled hydraulicpumps are phase shifted and reduces each others pump pulsations.

Innovativt Drivpaket för Rullstol

This is a thesis for a Bachelor Degree Project, performed in the subject MechanicalEngineering. The students Roger Malmberg and Simon Hagberg have carried out adesign project on behalf of the recently established company J&D Assisting systems,located in Halmstad.The project consisted in developing J&D's first prototype of a power assisting solutionfor wheelchairs. A power assisted wheelchair combines human power, which is deliveredby the arms through the pushrims, with electrical motors, which are powered by a battery.The power assisted wheelchair is aimed at customers, who have used a regularwheelchair for a long time, but who have become weaker or just need additional powerwhen driving uphill. This kind of wheelchair will provide additional power for users,which will spare their wrists, elbow and shoulders. The product is torque sensor free andinstead it relies on the velocity.

Förbättrar en kvalitetssäkring skördarens dimensionsmätning?

In this study it was investigated if the adoption of a new routine for quality control could improve the precision of the dimension measurement obtained by harvesters. Data was collected from three different harvesters. First, a reference data set was collected before the new procedures had been incorporated, and then when the new methodology was implemented another data set was collected by the harvester operators, allowing the two data set to be compered. The results indicated that following the implementation of the new procedures, the reliability and the precision of the measurements has increased. All harvesters included in the study had improved regarding most of the controlled factors such as standard deviation, systematic difference and hit rate within ± 2 cm for length and ± 4 mm for diameter..

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