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3109 Uppsatser om Automatic Control - Sida 20 av 208

Modern kontra traditionell styrning : - en studie av traditionellt tillverkande företag

Bakgrund: Traditionell styrning har kritiserats av en rad olika författare och en modern verksamhetsstyrning har utvecklats. Vi menar att traditionella tillverkande företag är intressanta ur den aspekten att traditionella ekonomistyrningsmodeller är uppbyggda kring dessa typer av företag. Frågan vi ställer oss är alltså huruvida modern verksamhetsstyrning är ändamålsenlig i traditionella tillverkande företag.Syfte och metod: Syftet med den här uppsatsen är, att beskriva och analysera tillämpningen av traditionella och modernare verksamhetsstyrningsmetoder i traditionella, tillverkande företag. Vår empiri är baserad på sex olika kvalitativa intervjuer på företagen Cloetta Fazer, Milko och Skånemejerier.Resultat: Traditionellt tillverkande företag möter inte samma förutsättningar som tidigare och behöver därför på många plan anpassa sin styrning..

Konstruktion och utveckling av en självbalanserande robot

This project is part of the course MF10YX, introductory mechatronics. The purpose of theproject is to integrate modules from the group members previous specializations into amechatronic system in the form of a self-balancing robot. The prototype ?Charlie? should be ableto race along a 10 - 30 m line. It should be able to start manually and autonomously detect andstop after the finishing line.

Predicerar Work Locus of Control och anställningslängd arbetstillfredsställelse?

Arbetstillfredsställelse är ett viktigt begrepp då människor tillbringar stor del av sitt liv på arbetsplatsen. Det är ett svårdefinierat och komplext begrepp, men kan ses som en individs syn på och värdering av sitt arbete och sin arbetsplats. Locke (1976) ser det som tillstånd och upplevelser och Kaufmann och Kaufmann (2005) som ett samspel mellan bland annat den anställdes tankar, förväntningar och själva arbetet. Det finns aspekter som kan kopplas till hur tillfreds en medarbetare är med sitt arbete och sin arbetsplats. I följande studie belyses förhållandet mellan Work Locus of Control och arbetstillfredsställelse samt anställningslängd och arbetstillfredsställelse.

Frekvensreglering i det nordiska kraftsystemet

Svenska Kraftnät is (together with the other transmission system operators of the Nordic power system) responsible for keeping balance between the generated and demanded power in the Nordic power system. Spontaneous load variations and system disturbances, however, lead to power imbalance followed by frequency variations. The frequency deviations can be limited to an acceptable level by the spinning reserve, mainly by hydro power control. But there are also other system properties which have a great influence on the frequency and system stability. The frequency and voltage dependence of the loads have a direct influence on the power balance.

Effekt på östralcykeln hos ston tillförda GnRH-analogen deslorelin (Ovuplant) :

This article starts with a review of the literature regarding the normal reproductive physiology of the mare, prolonged luteal phase and medical drugs used within reproduction of the horse, with emphasis on Ovuplant®. The purpose of this article was to measure the progesterone level in blood, of mares implanted with deslorelin acetate (Ovuplant®). The study was performed at the Department of Clinical Sciences, SLU, in Uppsala. There were seven mares included in the study. They were divided into two groups, one experimental group (four mares) and one control group (three mares).

Mjukvaruplattform för riggstyrning

Today the competition in the automobile industry is getting all tougher. The technology behind cars becomes more advanced. To get ahead of competitors car companies has to look into new areas of innovation.One important area is vehicle safety. Bigger companies have come so far in vehicle safety that difference between cars more depends on the car type (size) than the technology behind it.There is one area where vehicle safety that still has great opportunities for improvement, which is in active safety. The term active safety states that the car has the ability to identify treats and automatically respond to the treats.

Vederlagsgrundande mätning med skördare

This study was performed in collaboration with Moelven Skog AB, Örebro district. The purpose of the study was to review existing literature in order to describe the current status of harvester based measurement technology as the way to provide information for calculating payment to the forest owners. In addition to this, a short survey was conducted to find out how a switch to harvester based measurement would affect the administrative workload on timber purchasers working for the district. The literature study shows that the harvester measurement technology is ready to use if it is combined with well-established routines for control of the harvesters, methods for automatic quality indexing of the timber and ways of creating pricelists specially adapted for harvester measurement. Pricing each stem seems to be the most promising method. Stem pricing has several benefits.

Evaluation of Ectopar for the control of the poultry red mite Dermanyssus gallinae

The poultry red mite, Dermanyssus gallinae, is a common problem in poultry facilities, causing great discomfort for the hens and effecting the production economically. Few efficient acaricides are available and there is a need for new control methods since resistance has become a problem in some cases. The aim of this study was to evaluate the efficiency of the new liquid silica control agent Ectopar, on the poultry red mite. An initial in vitro test of Ectopar and its two components individually was performed, where live mites were sealed in together with filter paper impregnated with one of the three solutions prepared. The survival of the mites was thereafter recorded repeatedly during a period of 120 hours and compared to a control. For the field study, two poultry farms with different housing systems were used, one with furnished cages (farm 1) and one with a single tier floor system (farm 2).

Kvinnors upplevelser av anorexia nervosa : En systematisk litteraturstudie

Background: Anorexia Nervosa (AN) is a complex condition with high mortality. AN has increased within the last fifty years and it?s associated with considerable suffering.Aim: To describe women?s experiences of AN.Method: This study was made as a systematic literature review. Articles were searched in Chinal, PubMed and PsycINFO. Eleven articles were used.

Upplevd stress - En kvantitativ studie av ungdomar på högskoleförberedande program

På senare tid har skolungdomar börjat uppleva sig allt mer stressade. Det kan handla om exempelvis stress inför skolan och den kommande framtiden. Denna studie undersökte elever på högskoleförberedande program upplevda stress, stressen inför framtiden samt eventuell betydelse av Locus of Control och kön. Respondenterna utgjordes av 42 poj-kar och 51 flickor, samtliga gick på samma gymnasieskola i årskurs tre. De fick besvara tre bakgrundsfrågor, en inom stressforskning väl använd stressenkät (PSS), en fråga gällande stress inför framtiden, samt Locus Of Control.

Work locus of control och ledarskapets betydelse för anställdas målengagemang under en företagsnedläggning

Anställdas produktivitet har överraskande visat sig öka under tidigare nedläggningar. Detta uppmärksammade fenomen benämns nedläggningseffekten och förklaras bland annat av anställdas ökade autonomi och utrymme för innovativa förmågor under nedläggningsperioden. Relationer mellan ledare och underanställda är enligt LMX-teorin av olika kvalitét vilket kan förklara anställdas engagemang, ett engagemang som även kan förklaras av anställdas individuella differenser. Syftet med studien är att undersöka ledarskapets och personlighetsvariabeln work locus of control betydelse för anställdas målengagemang under en nedläggningsperiod. En enkätundersökning för 275 medarbetare utfördes 2006 på ett tillverkningsföretag.

Indoor Energy Academy : Implemetering- och kompetensutvecklingsprogramför nyanställda hos Indoor Energy

Indoor Energy is a company that works in the energy sector. It works through itsthree subsidiaries Indoor Energy Services, Indoor Energy Control and Indoor EnergyConsultants. Because of their comprehensive experience and offering of broad rangeof services they can contribute to integrated extensive solutions for their customers.Indoor Energy Control works with building management through control andregulation. This work is realigned by programmers and project managers. Working inthis area is complex and places a great demand on both technical innovation andprofessional project management.Due to the complexity of the work Indoor Energy Control has a hard time to get thenew employees to be independent in their work as a programmer.

Statens fastighetsverk -betalformad styrning i en funktionsdriven organisation

The National Property Board (SFV) has been appointed by the Swedish government to administer all property of cultural value owned by the Swedes collectively. The commission includes maintaining the soul and character of each individual building, to adapt these buildings to present needs and requirements, and furthermore making them available to the public. The return on equity demanded by the government is based on the CAPM used within the real estate industry. The theoretical assumption that organizations are either function-driven or pay-driven will serve as a starting point, after which SFV will be defined as a function-driven organization with a pay-formed management control system. This paper aims to examine how applying a pay-formed management control system will affect a function-driven organization.

Modellbaserad temperaturregleringav partikelfiltrets regenereringsprocess

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.

Smart Control : En reaktion på EU:s ekodesignkrav

The purpose of this thesis is to assist the Swedish energy company NIBE Energy Systems in their studies of adaptive regulation applicable to electrical water heaters. Due to coming energy classifications of these appliances in the European Union, NIBE Energy Systems needs to use adaptive regulation, called Smart Control, to keep their products in the best possible energy class and remain competitive to the market. By using this Smart Control regulation a 2-3 % improve-ment of efficiency can be credited the system. This is a small number, but heavily needed, since the energy classes are based on the idea that the European Union is provided with electricity from coal condensate power resulting in a 40 % maximum efficiency. Furthermore, doing noth-ing will result in some water heaters not being approved to use on the market from 2015 due to low efficiency.

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