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1011 Uppsatser om Discrete event simulation - Sida 25 av 68
VD-bytets påverkan på marknaden
Syfte: Syftet med uppsatsen är att undersöka vilken påverkan VD-byte har på företag noterade på den svenska börsmarknadens A-lista, och att detta i sin tur skall ge intressenter djupare förståelse för reaktionerna på marknaden vid denna händelse.Metod: Vi undersöker den kvantitativa effekten av ett VD-byte genom olika event studier. I uppsatsen används EGARCH-modellen för att modellera avkastningarna, GARCH/GARCH-M för att estimera volatiliteten och en linjär faktormodell för att modellera bid-ask spreaden. Vi utför hypotestester i syfte att fastställa avvikande effekter utifrån den effektiva marknadshypotesen.Studien är baserad på 54 stycken VD-byten från 1996 till 2003.Teoretiska perspektiv: Vi utgår från effektiva marknadshypotesen, signalhypotesen och agentteorin i tolkningen samt beskrivningen av våra resultat.Empiri: Det kan inte påvisas någon statistiskt säkerställd effekt påavkastning, volatilitet eller bid-ask spread för marknaden. Detsamma gäller förföretag med nyanställda VD, som rekryterades externt. För företag med interntrekryterade VD kunde vi dock påvisa en statistisk effekt på avkastningarna ochvolatiliteten.
En utvärdering av två olika sa?tt att skatta fördelningen till stickprovsmedelvärden från olikfördelade data - normalapproximation kontra resampling
This report evaluates whether normal approximation or resampling is to prefer for estimating the distribution of the sample mean and functions of the sample mean. The evaluation relies on simulation studies. The observations of the sample are allowed to be differently distributed. In the case of sample means they are also allowed to be dependent.For sample means the two approximations behaves very similar. The most important component whether we have a good or a bad approximation is how good the approximations catch the variance of the true distribution.
Prislisteoptimering för ett sågverk - Jarlträ AB :
This report is a thesis work for a B.Sc. in Forestry at the School for Forest Engineers, SLU. The work was an assignment from Jarlträ AB which is a privately owned sawmill located in southern Småland. The aim of the work was to investigate the economical result of different pricelists and how to adjust different parameters such as length correction to give an optimal result.
The pricelists was examined through a computer program (SilviA). The pricelists was made in the program and after that a simulation was preformed with a selection of random sampled trees gathered from the area nearby the sawmill.
Vaxholmskonflikten och innebörden av solidaritet : En argumentationsanalys av den svenska pressdebatten
The conflict in Vaxholm was an important event since it influenced the view upon the Swedish labour market. The entire Swedish model was questioned and questions about what the concept of solidarity stands for and for whom it is meant arose.The Swedish union, Byggnads, was harshly criticised for having acted in a discriminating fashion towards den Latvian workers and the Latvian company Laval un Partneri. The debate in the media was intense.My intention with this essay was to scrutinise the arguments in one of the most prestigious newspapers in Sweden, Dagens Nyheter, and to put the argumentation into a perspective of solidarity. I wanted to investigate how the different parties argued about solidarity. One of the conclusions I drew was that Byggnads needs to question their definition of solidarity and how they wish to express that in a new world more influenced by globalisation and immigrated labours..
Utveckling av flödesreaktor : Ett sammarbetesprojekt mellan fakulteten för teknik och naturvetenskap vid Uppsala Universitet och Fagrell produktutveckling AB
This report deals with thecollaborative project between FagrellProdukt Utveckling AB and studentsfrom the Faculty of Science andTechnology at Uppsala University. Theoverall objective of the project wasin addition to developing students'abilities, to help Fagrell withverification and development ofFagrells prototype, Fundamental flowreactor, for flow chemistry. Theuniqueness of Fagrells flow reactor isthat it should be simple andaffordable compared to competing flowreactors in the market.The verification was done bylaboratory and simulation sessions.The verification shows that Fagrellsidea on how to construct a flowreactor is very good.The development included bothtechnology and business. The result ofdevelopments can be helpful for thecommercialization of Fagrell flowreactor..
Samhällsmoral genom lag? : En sociologisk studie av de viktigaste argumenten för en svensk civilkuragelag
A tragic event in 2012 sparked a debate about the need for a law of civil courage when it became clearthat passivity in situations where people ?s lives are put in danger is not punishable. In this essay based on qualitative interviews with jurists and students of law the issue of civil courage is analyzed with the help of sociological theory. My objective has been to try and find out if a law of civil courage can be motivated with the argument that it would strengthen the public moral. My conclusion is that a law of moral courage is not a suitable way of making people more willing to help others or to strengthen the civil courage or the public moral.
Evenemang : Great event of Karlstad & Mariebergsskogen
In my study I have chosen to examine the mathematics in children's free play and everyday situations, with focus on sorting and classification. The purpose of the study was to see how children express their mathematical knowledge. I have chosen to use a qualitative method in my examination, here I did observations in a children's group where the children were between three and six years old. I also did interviews with the teacher's on the department to see how they relate to the mathematics and how they formulate the department to achieve as good a learning environment as possible.The result shows that the teacher's approach is incredible important to the children's learning ability and that they are always present to challenge and discuss together with the children. The observation indicates that children use mathematics all the time in their everyday situations and that it is the interaction between individuals and environment that affects children's development. .
Inkarnationens ontologi : En studie av Wolfhart Pannenbergs kristologi i belysning av uppenbarelse som historia
Summary in EnglishThe purpose of this essay has been to examine the Christology of Wolfhart Pannenberg, and especially his interpretation of the belief in Jesus as true God and true man. The consequences for his ontology and his view of the incarnation are also focused upon.Fundamental features in the Christology of Pannenberg demand a closer examination in this connection. First, christological method regarding which a certain development can be shown from the early to the late writings of Pannenberg. According to my view, the later Pannenberg is more balanced in his way of describing the christological movements "from above" and "from below" and how these movements complement each other. In contradistinction to his mature Systematic Theology, in Jesus, God and Man from the 1960s he was more categorically an advocate of the from-below-perspective.Secondly, Pannenberg risks his entire Christology claiming the historicity of the resurrection.
Effektivisering och produktivitetsökning i produktionsflödet av Hammarhäftare på Isaberg Rapid AB
AbstractThe market?s demand to purchase more cost effective products is continuously increasing. The producers are forced to become more efficient and flexible with resources to produce high quality products at a low cost in order to maintain or increase market shares. With this in mind Isaberg Rapid AB is requesting a project to increase efficiency in the assembly cell of hammertackers. The company has found in Kaizen-events that there is a potential of efficiency improvements in the assembly group that has not been achieved.The objective with this paper is to identify the major factors that influence the efficiency in the assembly cell for hammertackers.
Gulliver Simulation - En systemarkitektur f or n atverkssimulering av
Nowadays, a lot of resources are spent on developing systems that will make it possible forvehicles to act autonomously, and make them more effective. One of the projects that isworking on this is the Gulliver Project. Gulliver has constructed a number of miniaturevehicles equipped with various sensors, to use as a physical testbed for autonomousdriving. One big disadvantage with this method is the long iteration time that occursduring the development and testing of a new software.This project has improved this process by developing a system architecture of a virtualtestbed where it is possible to simulate autonomus vehicles that communicates throughany type of wireless network. The testbed has made it possible to simulate autonomusvehicle systems that with a reasonable margin of error, acts like the system would actin a physical test.
Link QualityControl (LQC) i GPRS/EGPRS
This master thesis has been done at Enea Epact AB. The purpose of this thesis is to develop and implement a Link Quality Control algorithm for GPRS/EPGRS in the current testing tool. A Link Quality Control (LQC) shall take quality values from mobile stations and base stations and decide a codingsscheme that opimizes the throughput of data. The Advantage with LQC is that it adapts the used coding scheme to the channel quality. If the channel quality is too bad for the used coding scheme, a slower coding scheme with more redundancy should be selected.
Producenternas möjligheter att kommunicera sitt varumärke
The purpose of this essay is to analyze and understand how producerbrands are able to communicate their brand through today's marketing channels, also how development and changes that occur in the society can affect the producers communication abilities. We have seen a tendency that many retailers have created their own brands that are competing with the producers, this leads to the fact that producers in some cases are having trouble communicating their brand to the end-consumer. The fact that the producers marketing through retailers now is more limited than before, the producers now have to capture the consumers wants and needs through other channels.This essay is based on a qualitative method involving seven interviews. The persons that we've chosen to interview are carefully selected based on their specific knowledge about the subject in question..
Simulering av filtrerade skärmfärger
This report present a working model for simulation of what happens to colors displayed on screens when they are observed through optical filters. The results of the model can be used to visually, on one screen, simulate another screen with an applied optical filter. The model can also produce CIE color difference values for the simulated screen colors. The model is data driven and requires spectral measurements for at least the screen to be simulated and the physical filters that will be used. The model is divided into three separate modules or steps where each of the modules can be easily replaced by alternative implementations or solutions.
Kommunikation utan gränder? : en studie om problemen kring Göteborgs kulturkalas kommunikation till mångkulturella områden
Authors: Stina Johansson, Anna Lennartsson, Caroline WennerstenTutors: Peter Caesar Title: Communication without boundaries? ? a study about the problems of Gothenburg culture festival communications to multicultural areas.Keywords: communication, multucultural areas, communicationmodel, attitudes, diversity marketing, culture, Gothenburg Culture Festival Background: There can be many problems with communication in multicultural areas. It has become more important for companies to communicate in order to gain competitive advantage. Gothenburg Culturefestival has a large number of visitors and since last year they have noticed that there are not as many visitors from some multicultual areas in Gothenburg. This makes it interesting to see what kind of problems that exists in the current communication. Problem statement: What noise is there in communicating to a multicultural target group and how does they affect the goals and the result with the communication?Purpose: The purpose of this paper is based on the communicationmodel and from there describe the communication between companies and multicultural areas, and from this identify problems with such communication.Method: 118 respondents were selected through a convenience sample and then asked questions through structured interviews based on a questionnaire.