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1571 Uppsatser om Variable speed motor operations - Sida 41 av 105
Vad påverkar en kommuns beslut att bli en "Fairtrade city"? : En studie av Sveriges kommuner
The aim of this thesis is to examine the properties of the municipalities in Sweden that influence the choice of being a certified Fairtrade city. The independent variables which are used in the statistical analysis are municipal governance, local tax rate, whether there is an university and/or university college in the municipality, average income and higher education in the municipality. The variables are examined by logistic regression. Since there are no statistical data on ethical procurement, this exogenous variable isn?t included in the regression.
Datorsystem för kvalitetskontroll och temperaturövervakning med värmekamerateknik
The work was carried out on Termisk Systemteknisk?s office in Linköping. The aim was to create a computer system with infrared camera technology for quality control and temperature monitoring of manufacturing processes in industry. The system should be configurable such that it can be used on several different issues, including those where the real-time analysis of camera images is required.The developed system is based on an existing framework, Panola, to deal with measurement results and images in a database. The framework is built for the system continually check for new data , and the task was to create a foundation upon which to build systems that use the framework, but fully or partially utilize direct calls .
Viktreducering av hydraulmaskin F11-010
Möjligheter att reducera vikten på en hydraulmotor, som tillverkas på Parker Hannifin AB i Trollhättan, har studerats. Målet med arbetet var att ge förslag på hur motorn kan göras lättare för att nå det framtida målet att erbjuda kunder en lättviktsmotor (LWM) lämpad som fläktmotor.För att identifiera komponenterna och deras vikter vägdes alla delar var för sig. Värdena visade att trumhus, lagerhus, axel och lagerpaket stod för ca 75 % av motorns totala vikt. Arbetet koncentrerades därför på att reducera vikten på dessa delar.Flera koncept togs fram med lägre vikt och bibehållen prestanda. Vissa delar kontrollerades mot hållfasthet med handberäkningar och FEM-analyser.
Dominerande affärsmodeller inom området informationssäkerhet
Computers together with Internet have been growing enormously, during the last decade and the area of information technology has been growing in the same speed. As long as the surrounding environment evolves, the business models must within the IT-area, keep the same pace. So, how do business corporations handle this change to attract customers? How do the dominant business models look like? In many cases, they are apparently much the same. But what differences can we see and what areas can be improved? We have showed that the IT area isn?t just one, it consist of several segments.
Kortsiktighet i näringslivet : En studie om förhållandet mellan VD, styrelsen, ersättning och avkastning
This study test the short-termism of companies listed on the market OMX Stockholm 30. We will use a deductive point of view where the purpose of this study is to investigate whether corporate short-term returns can be explained by the independent variables related to corporate governance and compensation practices. This is to investigate whether there is an intentional action on raising the short-term return in order to achieve a higher CEO compensation. In the study, theories dealing with corporate governance and agency theory have resulted in two hypotheses. Basic Hypothesis H1 is: if short-termism of Swedish industry due to the company's short-term returns can be explained by the independent variables related to the company's management and compensation. This hypothesis could not be verified through the quantitative study. Alternative Hypothesis H2 is: the compensation of a CEO can be explained by the independent variables related to company performance and size.
Skapa ett equalized underhålls/planeringsprogram samt minimera driftstopp
This report is a thesis on requests from Sandvik Mining and Construction (SMC) in autumn of 2012. The goal of this work was to study the feasibility of creating and implementing an Equalized preventive maintenance program in SMC maintenance operations and reduce downtime for preventive maintenance (PM). To investigate whether this was possible, the authors studied the current procedures for the PM. The authors have collected and analyzed all relevant information within the maintenance department reporting system as well as through interviews determined whether it is practical to introduce a Equalized PM programs. The authors had also studied the possibilities to entrust part of the maintenance work to the operators of the machine cells.
Visualization of Particle In Cell Simulations
A numerical simulation case involving space plasma and the evolution of instabilities that generates very fast electrons, i.e. approximately at half of the speed of light, is used as a test bed for scientific visualisation techniques. A visualisation system was developed to provide interactive real-time animation and visualisation of the simulation results. The work focuses on two themes and the integration of them. The first theme is the storage and management of the large data sets produced.
Omvårdnad vid diagnos borderline personlighetsstörning
Background: Borderline personality disorder is a psychiatric diagnosis that one to two percent of the population and at least every fourth patient that have received treatment at a psychiatric clinic has been diagnosed with. BPD is most common in women between teenage and early adulthood. Purpose: The aim of this literature study was to emphasize the nursing care of patients diagnosed with BPD within different perspectives. Method: A literature study was conducted to get a deeper understanding for the nursing care of patients with BPD. The search for pertinent articles, answering to the aim of the study, was done in different databases.
En undersökning av röststyrning för Android-enheter
Den tekniska utvecklingen bland mobiltelefoner går ständigt framåt, och med den en förväntan från användarna av högre användarvänlighet hos dem. Standardinmatning har gått från fysiska knappar till pekskärmar, och på senare tid har även röststyrning vunnit mark.Denna rapport behandlar just taligenkänning i mobilapplikationer och undersöker vilka alternativ man har som utvecklare om man vill implementera röststyrning i sina applikationer. Rapporten går igenom vilka fördelar och ?ackdelar det finns med röststyrning, samt vilka begränsningar och problem som uppkommer.Undersökningen genomfördes av två KTH-studenter på uppdrag av Nordens största sökföretag, Eniro. Efter en förundersökning över vilka alternativ som fanns konstaterades det att PocketSphinx, ett taligenkänningssystem som bygger på öppen källkod, lämpade sig bäst för röstnavigering medan Googles tal-till-text-motor var att föredra för röstsökning.En Android-applikation utvecklades där användaren med rösten både navigerar i applikationen, samt genomför sökningar efter företag och telefonnummer..
Bangenerering för industrirobot med 6 frihetsgrader
This thesis studies path generation for industrial robots of six degrees of freedom. A path is defined by connection of simple geometrical objects like arcs and straight lines. About each point at which the objects connect, a region, henceforth called a zone, is defined in which deviation from the defined path is permitted. The zone allows the robot to follow the path at a constant speed, but the acceleration needed may vary. Some means of calculating the zone path as to make the acceleration continuous will be presented.
Flödesoptimering i begränsande resurs
Most companies have a bottleneck in their production, that is a constraining re-source. When the demand is higher than the capacity in the constraining resource it is impossible to produce the demanded output. This problem leads to delayed deliveries, unhappy customers and ultimately to decreased revenue. Bottlenecks therefore has a significant role in production and must be handled thereof.MW Power in Sävsjö, Sweden designs and manufactures water and steam boilers for the customer's unique needs. MW Power invested in a new plasma cutting ma-chine but the machine has not reached the expected capacity.
En jämförelse av stickprovsmetoder vid mätning av radioaktivetet på en yta
This study compares the sample variance of the mean in a simple random sample (SRS) and a systematic sample from a surface. The study also compares the prediction error variance in a SRS and systematic sample from a random field. Recommendations are presented on which method to use in the clearance and exemption process in the nuclear industry. The results indicate that quadratic systematic sampling outperformed SRS in most instances and proved to be especially efficient in the presence of a long-ranged covariance function and high sampling intensity (i.e. short distances between observations).
Analys av revisionsarbetet på Forsmarks kärnkraftverk
This thesis is the final part of bachelors program of Nuclear Engineering at UppsalaUniversity (program code KKI1). The work has been carried out in cooperation withForsmark Kraftgrupp AB. The topic studied deals with possible improvements ofefficiency at the planning department at block 2 in Forsmark i.e. FMP2.FMP2 plans and coordinates over 3,000 operations which is carried out during theannual overhaul of block 2 in Forsmark. Inspections, fuel replacement and repairs areincluded in the annual overhaul.
Lära sig bollspel - Elevers och studenters uppfattningar speglat i lärandeteori.
Syftet med detta arbete är att få en bild av vilka faktorer som är mest betydelsefulla för att lära sig motoriska färdigheter i bollspel och koppla detta till lärandeteori. Finns det skillnader i uppfattning om man är nybörjare eller har erfarenhet från bollspel? Spelar kön och ålder någon roll? Vilken lärandeteori värderas högst? För att ge en bakgrund till problemställningen görs en genomgång av tidigare forskning och en beskrivning av två dominerande lärandeteorier, Generella motoriska programteorin och Dynamiska systemteorin med tillhörande didaktiska och motoriska begrepp inom lärande och bollspel.
Frågor har ställts i enkätform till två olika undersökningsgrupper, dels 112 studenter från enheten Idrottsvetenskap vid Lärande och samhälle, Malmö högskola och dels 129 elever från grundskolan och gymnasieskolan i två mellanskånska orter. Undersökningsgrupperna har fått värdera faktorer som anses betydelsefulla för att lära sig motoriska färdigheter i bollspel.
Från frihet till fängelse: En studie av klientflödet på Häktet Kronoberg
In the last decades, lean production has proven to be one of the most important organizational paradigms in manufacturing. The lean concept has also spread into the service industry where it is applied within a range of different areas. The wide applicability of lean principles has spurred the authors of this study to apply the principles in the context of the operations of a Swedish remand prison. The thesis examines the process a client of the remand prison Häktet Kronoberg goes through from the time of arrest until he/she is released or convicted and transferred to jail. Based on lean tools and principles, the thesis maps and analyses this process.