In this master?s thesis the problem of simulating conditional Bernoulli distributed stochastic variables, given the sum, is considered. Three simulation methods are considered, namely the acceptance/rejection technique, Bondesson?s method and the Markov chain Monte Carlo method.To compare the three methods the bias and the standard deviations of the simulated variables are evaluated. The results of the simulation study shows that the Markov chain Monte Carlo method is not the best method for this type of simulation.

This master thesis describes the development of an UPS module. UPS is an acronym for Uninterruptable Power Supply. The UPS module has been developed at the company AerotechTelub AB. The UPS module delivers the necessary voltage and current in case of a power interrupt. If a power interrupt occur, the computer system has one to three minutes available to store data and shut down correctly.

Abstract: Purpose: The purpose of this study is to describe the situation for independent hotels. With a thorough case study of ?The Grand Hotel in Lund? ,our intentions is to gain knowledge about the demands a hotel must keep up with in order to be a successful independent hotel, in a market dominated by chain-constellations. Methodology: An abductive method is used as the study form the basis for hypothesis. The first part of the thesis, which describes the line of business, is based primary on secondary data.

To be able to secure a safe and reliable power supply is becoming increasingly important since society depends on services and functions that need continuous power supply. The delivery rate in Swedish power supply is 99.98 % which insists on a high availability. During the past decade several storms has passed Sweden which resulted in large amount of tree felling leading to extended power outages. During these storms many socially critical activities, such as electric utility company Fortum, experienced disruption in mobile communication which affected the crisis management. This paper has investigated Swedish mobile operators? crisis management at Hi3G, Tele2 and TeliaSonera with a case study of the storm Dagmar that hit Sweden during December in 2011.

The purpose of the essay has been to clarify why and how small companies, whose major resource is knowledge, establish strategic alliances and which opportunities it brings. We have increased our understanding for the concept of strategic alliances through empirical search and through well-known scientist work. The method, which has been used in the essay, is principally qualitative interviews and gathering secondary data from articles from well-known authors. Our study has given that we have found that entering strategic alliances can make growth and by that way create competitive advantages for the company in question. We also found that there are risks with strategic alliances and the company can protect themselves by legal actions.

Through trading with countries that have a relative aboundant supply of labor, Sweden changes it's effective supply of labor, in a Factor Content perspective. This essay does two Factor Content analyses, one for year 1995 and one for 2000. The first comparison of these analyses shows that Sweden exports about 27 600 labor-years more year 2000 than 1995. However, since Factor Content analysis arguably underestimates the imported labor, some assumptions are made in order to correct for this. This correction has great importance for the final analysis.

The supermarkets are taking more and more market shares for potted plants the last years, and a greater part is bought without prior planning. Signals from several European countries, for example Denmark and UK, indicate that potted plants with added value have become more and more popular and the added value is based on present trends. The meaning of added value in this thesis is fancy pots, packaging, pins or arrangements. Potted plants with added value sold in supermarkets offer the consumer the advantage of getting a ?ready product? quick and easy.

Emission of nitrogen oxides as well as carbon monoxides is an inevitable result of combustion. A Swedish law "Law of environmental fee for emissions of nitrogen oxides as a result of energy production" (lagen om miljöavgift på utsläpp av kväveoxider vid energiproduktion (SFS 1990:613)) controls the emission of NOx from energy production by a system of fees. The system has resulted in a strong approach toward less emissions of NOx among the energy production plants. High emission levels, today exceeding 52 mg/MJsupplied fuel, leads to costs for energy production companies. This paper examines possibilities to reduce the emissions of NOx by optimization of the SNCR-technique in a biofuel fired heat and power plant.

Radio Frequency Identification (RFID) är en teknik som enligt många utsetts till framtidens teknologi inom Supply Chain Management. Detta då RFID, utan involvering av människan och utan behov av fri sikt, på distans kan utföra effektiva identifieringar av objekt. Det har emellertid, genom forskning, uppmärksammats problem med RFID och dess i vissa fall bristfälliga ändamålsenlighet inom logistiska sammanhang. Utifrån de möjligheter och hot som RFID innebär, har detta examensarbete kritiskt undersökt hypotesen: "Logistiska RFID-implementeringar är lönsamma och tillförlitliga". Analysen grundar sig på ett arbete genomfört vid Volvo Car Corporation (Volvo) i Göteborg och Olofström, där ett pilotförsök med RFID- utrustning för lång avläsningsdistans installerats och processeffektivitetsstudier fullföljts.

BakgrundJohan Andersson som är inköpschef på PEAB menar att det finns förbättringsmöjligheter för beställningsprocessen av betong. Informationsflödet i hela försörjningskedjan, som består av PEAB, Swerock och BASF, är bristfällig som enligt parterna leder till kapacitet- och ledtidsproblem i försörjningskedjan.SyfteSyftet med den här uppsatsen är att undersöka hur beställningsprocessen av betong ser ut i försörjningskedjan, samt att lokalisera vilka delar i processen som har förbättringspotential med avseende på information-, kapacitet- och ledtidsproblem. Även att undersöka vilken materialplaneringsmetod som är mest lämplig i försörjningskedjan under de nuvarande förutsättningarna och om någon förutsättning måste ändras för att en implementering ska vara genomförbar. Likaså är syftet att undersöka vilken inverkan den eventuellt nya materialplaneringsmetoden får på försörjningskedjan.SlutsatsDet återfinns förbättringspotential i försörjningskedjan med hänseende på informationsflödet. För att den valda täcktidsplaneringen ska kunna implementeras i försörjningskedjan måste några av de nuvarande miljöplaneringsfaktorerna ändras..

Those companies that have taken a stand in corporate social responsibility and work with these issues often experience difficulties orienting themselves in these areas. There is a picture of how companies want to be in their CSR commitment on corporate websites and a different reality which is reflected in the media. These different images are not in harmony with each other.The purpose of this study is to revise the CSR work of Sweden?s largest clothing companies.To answer the problem of this study a qualitative method has been used. The choice to explore a few clothing companies resulted in a multi-case study.

Songs from the Crypt: Mapping the Forces that Hinder the Digital Revolution of Music Distribution This paper seeks an explanation to the low market share growth of the commercial digital music distribution in Sweden. The analysis identifies a spectrum of obstacles that hinder the digital distribution technology from becoming the main form of music distribution in Sweden. These obstacles make the digital music distribution less favourable in comparison with physical distribution from the consumer?s point of view. The authors suggest that in order for the digital distribution of music to become competitive the digital product would either have to be developed further to offer more customer value or the so called a là carte retail model would have to be replaced by a subscription-based distribution model.

The four grocery chains Axfood, Bergendahls, Coop and ICA, all providing private labels, dominate the Swedish grocery market. Through private labels, it may be possible to convey an image about the grocery chain's overall brand. Furthermore, it is important that the grocery chain's employees have a fairly consistent understanding regarding the company's image to achieve success.The main purpose of this study is to examine how the intended image the Swedish grocery chains head offices will communicate through private labels is perceived among the store employees. The study intends to provide an expanded view among the grocery chains' work on internal communications regarding the image of private labels. The research method is qualitative.

Husqvarna AB operates two warehouses located in the area of Jönköping. The most important task is to manage the large volume fluctuations during the peak season. DHL Exel Supply Chain (DESC) run the warehouses and the domestic transportations is outsourced to DHL Express. A number of forwarder agents are responsible for distributing the export gods. In the present situation a bottleneck occurs at the warehouse loading section, and the consequence is fulfill the time of delivery for all customer orders.

Idén till uppsatsen uppstod efter att ha läst Jan Carlsson et al: s avhandling och artiklar inom ämnet logistiskt förändringsarbete. Flera forskare problematiserar avsaknaden av teorier inom ämnesområdet samt lyfter fram bristerna i den existerande logistikforskningen som enligt forskarna inte lyckas fånga logistikförändringarnas komplexa natur.Syftet med uppsatsen var att med utgångspunkt från befintlig forskning inom området för logistiskt förändringsarbete och Supply Chain management, utvärdera och analysera logistiskt förändringsarbete i två företag. Utifrån befintliga teorier sammanställde vi en övergripande syntes med syfte att visa vår tolkning av hur logistiskt förändringsarbete skulle kunna hanteras. Ur denna syntes extraherade vi variabler som ansågs vara av betydelse för den empiriska studien. Undersökningen genomfördes som en fallstudie i två företag med ostrukturerade intervjuer med personer inblandade i förändringsarbetet.Resultaten vi kom fram till var att medvetenheten finns om att ta hänsyn till flera dimensioner i förändringsarbetet men det förarbete företagens utför underbygger inte alltid denna vetskap..