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3194 Uppsatser om Speed control - Sida 4 av 213
Implementering av mjukvarubaserat PLC-system för reglering av magnetiseringen av en synkrongenerator
In order to reduce the price for, and improve the performance of automatic control systems for magnetization of synchronus generators, the possibilities of using a PC based software PLC system, Programmable Logic Controller, has been investigated. The result is a system based on the CoDeSys software PLC with runtime environment from 3S-Software, communicating with external units via Modbus fieldbus. System price is reduced from ?5000 to ?2000 and system processing speed is reduced from 10 ms for a Siemens S7 PLC to 4 ms with the CoDeSys PLC system though unsolved problems with runtime seizure caused by improper settings in the PC BIOS..
Ögårdsparken - en gemensam park för olika kulturer genom aktivitet
Road safety is the result of measures to reduce therisk of accident and injury. (Nationalencyklopedin,2008). In principle, road safety means to arrive saveand sound.Safe traffic in cities is mainly achieved throughappropriate speed. In Sweden, more than half ofall rides happen with a speed above the legal speedlimit (Holmberg, Hydén m.fl, 1996). To reducespeed in order to increase safety requires measureswhich influence a driver?s motives for his orher choice of speed even if these are not rational(Boverket, 2002).
Sakta ner : åtgärder för förbättrad miljö ochtrafiksäkerhet på gator i bostadsområdeni Varberg, idékatalog ochtillämpning
Road safety is the result of measures to reduce therisk of accident and injury. (Nationalencyklopedin,2008). In principle, road safety means to arrive saveand sound.Safe traffic in cities is mainly achieved throughappropriate speed. In Sweden, more than half ofall rides happen with a speed above the legal speedlimit (Holmberg, Hydén m.fl, 1996). To reducespeed in order to increase safety requires measureswhich influence a driver?s motives for his orher choice of speed even if these are not rational(Boverket, 2002).
Verksamhetsstyrning: Utrikesdepartementets personalbostäder
The purpose of this thesis is to find means of control that secure cost efficiency regarding the accommodation for the employees on missions abroad of the Swedish Ministry for Foreign Affairs. Today the ministry?s cost for the employees? rented housing is 100 million SEK and there is a need of improvement in the control of these costs. A work method for organizational development will be used in order to reach the findings presented in the thesis. First we study the strengths and weaknesses in today?s control system.
Fysiska strukturer i Umeälvens gamla älvfåra och dess inverkan på laxsmoltens utvandringsframgång
The survival of hatchery reared smolts is generally low after release. To get a better understanding of what variables affecting migration success, Atlantic salmon smolts were studied during their out-migration in the old river channel in the lower part of river Umeälven. The area consists of shifting habitat and complex structures which causes difficulties for smolt on their migration out to sea. The aim of this study was to try to determine the effects of feed restriction, fin conditions and different physical barriers in the river, on the migratory behavior of Atlantic salmon smolts in the river Umeälven.
The river was divided into six different sections using acoustic receivers strategically deployed along the river. Two-year old hatchery-reared smolts (n=150), in three different weight classes, were tagged with acoustic transmitters.
Locus of control, syskonplacering och kön : Finns det några samband?
The purpose of this study was to examine if there was a relation between birth order, gender and locus of control. There where 162 participants in the study, 44 men, 115 women. Birth order was coded into three levels. There where no significant differences between birth order and locus of control. The result showed that female participants where more external when it came to locus of control.
Personlighet och Health Locus of Control : en korrelationsstudie med deltagare från Sverige och Tyskland
I denna studie har undersökts personlighet och Health Locus of Control hos 56 kvinnor och män i åldrarna 18 till 65 år, där 30 var svenskar och 26 var tyskar. Undersökningens frågeställning var: Är en eller fler personlighetsdimensioner i Fem-Faktor-modellen relaterade till i vilken utsträckning en individ har Internality, Powerful others eller Chance Health Locus of Control. En NEO-PI enkät och ett Multi dimensionella Health Locus of Control-skalan-formulär administrerades. Resultatet från undersökningen kunde påvisa en signifikant korrelation mellan Openess to Experience och Powerful Others Health Locus of Control samt Conscientiousness och Powerful Others Health Locus of Control. En signifikant skillnad mellan svenskar och tyskar beträffande Powerful Others kunde också påvisas.
Robotstyrning med metoden Sliding Mode Control
The task in this thesis is the steering of one of Saab Bofors Dynamics robots using Sliding Mode Control, a method they never used before. The robot constitutes a system which in addition to perturbations and uncertainties due to modeling imprecision, hold the difficulty of being highly time variant. In order to be able to keep required performance with uncertainties and modeling imprecision present, the use of robust control methods like Sliding Mode Control is necessary. SMC is based on the states of the system being forced to stay on or in the direct vicinity of a hyper plane in the state space which is chosen in a way that gives the system dynamics desired properties. Other advantages with sliding mode are reduced order dynamics on the switching surface and total insensitivity to some uncertainties and perturbations.
Chef över Erik men inte över Anna : påverkas företags styrning då inhyrd personal ingår i personalstyrkan?
The use of temporary workers gives companies the opportunity to be flexible, by avoiding hiring and dismissing workers because of economic conditions and trends in demand. The management control in use at the company has the purpose of influencing employees? behaviour to act in the company?s best interest and towards its goals. The management control should also influence the behaviour of the temporary worker. The companies have to create motivation and commitment among the temporary workers although they are employed by a staffing agency.
Riskkapitalbolags påverkan på styrning i sina portföljbolag: En studie om utveckling av styrsystem i svenska Venture Capital finansierade företag.
The aim of this study is to investigate which management control mechanisms evolve in companies that receive funding from Venture Capital companies and why the management control systems evolve in the way that they do. A case study was performed on three Swedish high technology companies, that all received funding from Venture Capital companies for the first time in 2006. Merchant?s framework, defining all management control mechanisms as either, results control, action control or personnel control, was used to structure the study. Results show that the companies that received Venture Capital all increased the use of management control mechanisms within results control, action control and personnel control.
Traditionell ekonomistyrning vs modern verksamhetsstyrning : en fallstudie av ett växande företagsstyrfilosofi
The purpose with this paper is that trough a description of the management control at Jitech AB find out if traditional management control have been abandoned for benefit for modern management control and in which extent the transition have happened. Further is the second purpose with this paper to find out which decisions that lies behind the design of the management control and how these are in opposition to with the theory..
Värdering av Speed ? Ett onoterat aktiebolag
Värdet på ett företag kan variera beroende på vilken nytta det kan anses ha för olika individer.Att finna ett värde på ett företag som är fullkomligt sant, objektivt eller obestridligt är därför iprincip en omöjlighet. Resultatet av en företagsvärdering bygger i stor utsträckning påantaganden och subjektiva uppskattningar vilket påverkar bedömningen, men även syftet ochvilken typ av företag det gäller har betydelse för värderingen.Värdering av såväl onoterade som noterade företag bygger på samma modeller och principer,men det är förknippat med större osäkerhet och svårighet att bedöma ett onoterat företag.Problematiken ligger bland annat i att det för onoterade företag saknas löpandemarknadsvärde från börsen. Dessutom är det förknippat med större svårighet att fastställadiskonteringsräntan vid användandet av en diskonteringsmodell och finna ett sannolikt måttpå risk. Problem kan även uppstå på grund av att onoterade företags värde i många fall har enstark koppling till dess ägare.Syftet med uppsatsen är att beskriva vilka delar som påverkar en värdering av ett onoterattjänsteföretag, för att därefter förklara hur ett teoretiskt förankrat värde kan fastställas. Studienomfattar bemanningsföretaget Speed Management AB och uppsatsen grundar sig på följandefrågeställningar:? Vilka delar bör beaktas vid en värdering av det onoterade företaget Speed?? Vilket värde på Speed kan slutligen uppskattas när teori förankras i empiri?Studien utgår från olika teoretiska värderingsmodeller för att påvisa arbetsgången när ettonoterat företag skall värderas.
Health Locus of Control och impulsivitet i relation till träning : en studie om universitetsstudenters träningsbeteende
There are many aspects which must be taken into consideration when studying individuals? need of exercise. The study investigates if impulsivity and Health Locus of Control affect the continuity of physical practise. The main presumption was that individuals with high impulsivity, high Powerful Others and high Chance Health Locus of Control, would have a significantly harder time to maintain a continuous physical activity. The survey used two standardized tests to measure impulsivity and Health Locus of Control and in order to be able to measure the insensitivity and the periodicity of physical exercise, a test was developed by the authors.
Analys av massapumps- och mixerarbete vid Metsä Board Sverige AB, Husums Fabriker : Energibesparingsåtgärder vid blekeri 4 & 5 med jämförelse mot ny utrustning
Husums plant has a selection of different pulp pumps at bleaching plant 4 and 5. The displacement- (HC-pump, Sund Defibrator PTD-60) and centrifugalpumps (MC-pump, MCA 42-200, MCP 30/20) are of interest in this report. The centrifugal pumps are controlled by throttle valves, which result in an energy loss. Chemical mixers are used to mix ClO2 into the pulp before proceeding into a holding tower where the bleaching process occurs.The energy demand of the different positions has been measured or calculated to be used in comparisons against new equipment. Quotations were requested and delivered from Valmet and Sulzer.
Interorganisatorisk styrning av leverantörsrelationer inom lågprismodebranschen: -En fallstudie av lågprismodeföretaget BikBok
This thesis concerns the control of outsourced interorganizational buyer-supplier relationships in the low-price fashion industry. A qualitative case study has been performed on two supplier relationships of a low-price fashion company. By identifying specificities of the industry and relating them to control problems and their implications on control solutions, the thesis has established a relation between industry specific characteristics and the way companies in the industry control their supplier relationships. The analysis is based on a theoretical framework created by Dekker (2004). Amongst other factors, the difficulty to define, quantify and measure the design variables of a fashion good, the high heterogeneity between individual products and the difficulty to predict the trend based demand, create high coordination requirements as well as appropriation concerns solved through extensive formal control.