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2444 Uppsatser om Single frequency network - Sida 38 av 163

Distribution Av Pejlbäringar Över IP-nät

The objective of the thesis is primarily to conform and encode a digital signal to be controlled by software. The idea is to transport today?s tracesignal through the IP-network instead of cable-net. In this report I will suggest a possible solution to get a fully passed result with no peculiar time delay. I will also suggest some ideas for a future work with the new tracesystem..

Trafikverkets effektstyrningssystem - EFS 132 kV : Bidraget till minskade förluster

The technological legacy from the early electrification of the Swedish railroads has resulted in a power grid with a lower grid frequency than the national power grid from which it is fed. Energy transfer between these power grids with different frequencies requires substations, adapting the grid frequency for the rail road power grid. For this purpose, a feeding power grid has been built, stretching across the country from Boden in the north to Tälle/Häggvik in the south.Power transfer in the Swedish power grid results in voltage angle differences which increase with increasing loads and transfer distance. These voltage angle differences are transferred from the power feeding substations to the rail road power grid, will in some extent cause loss of energy due to unwanted power flows from north to south.To minimize the losses due to this phenomenon, a power management system called EFS 132 kV has been developed and implemented. The system minimizes the unwanted power flows and controls the desired power flow for a good distribution of loads between the power feeding substations.This thesis investigates the extent of the transmission losses avoided due to the EFS 132 kV that coordinates the idling angles to a common reference point.The results indicate that EFS 132 kV affects the power flow, especially between the northern substations through an improved load distribution.

Analysis of Quality of Service of Wireless LAN for IEEE 802.11e

Nowadays Wireless LAN is playing a more and more important role in network systems. After 1999, in which the IEEE organization published its Wireless Local Network standard 802.11[1], many people saw the advantages of the standard but also the lack of support for multimedia streaming. A lot of research work has been done on the proposed IEEE 802.11e standard draft during the past 4 years. It is supposed to be able to fully support Quality of Service. The final version will be published early in 2004.

Orsaker till kalvningssvårigheter och dödfödslar hos SLB och SRB

Difficult calvings and stillborn calves are costly for the producer and lowering these frequencies can decrease the costs for the dairy operation. Each calving in the herd is registered by the farmer and stored in a central database. The information is used to monitor the level of calving-difficulties and stillborn calves in the herd and nationally. Monitoring of these registrations is important to detect possible changes. Breeding-value prediction for calving traits is based on the calving information in the database.

Planering och gestaltning för träning och motion

Aquatic organisms are usually not exposed to single substances but rather to mixtures of toxicants in streams located in agricultural areas. The transport of pesticides used in the agricultural area in Sweden is monitored with continuous environmental supervision every year. During 2002-2008 an average of 10 pesticides were found in each sample and 40% of the samples contained substances with concentrations higher than the Water Quality Standards. Chemical risk management is normally based on single-test evaluations. A problem when assessing mixture toxicities is that the constituents and concentrations of pollutants in the environment vary greatly.

Småföretags värde av studenters examinationsarbeten

Purpose:To concretize the various factors on students' theses that are perceived valuable and can contribute to corporate profitability. In our investigation, we want to strengthen the understanding of a "win-win-situation" of cooperation between students and businesses.Methodology:In this study, we have chosen a qualitative approach in which five personal interviews with various organizations that are active in a knowledge intensive industry. A semi-structured questionnaire was used in our interviews.Theory:Our theoretical framework has two broad areas. Introductory chapter is based on theories of research development in Sweden with theories that emphasize the value of collaboration and knowledge. The second chapter deals with a theoretical outlook on value and how this can be applied in marketing.Conclusion:The study shows a diversity of values within three broad categories.

Governance och genus- en pilotstudie om att analysera ett nutida stadsvetenskapligt begrepp från ett genusperspektiv

Following essay discusses the possibilities of using a gender perspective when studying local governance within a Swedish context. Governance is an international concept used to describe a more lose, informal and network based way of doing politics The main purpose for conducting this essay is that traditional theoretical frameworks used in the study of local politics are not enough to fully conceptualize the complexity of our changing political environment.After a broad summing up of what had been done in the recent decades within Swedish political science on the topic of local politics and gender I came to the conclusion that so far nothing had been written on governance. The next step was therefore to conduct a pilot study to cover the subject matter of governance and gender. The study was based upon interviews with five female politicians in Malmoe city.Results showed that governance, in terms of informal networks did exist, and had influence over the local politics. Some of the networks were male dominated.

Kunskapso?verfo?ring inom franchisena?tverk : En studie av utveckling och o?verfo?ring av kunskap inom franchisena?tverk

This case study has been conducted within the Swedish fitness chain World Class to explore the opportunities for knowledge development and transfers within franchise networks. We have interviewed the product manager at the World Class headquarter, the owner of a franchise club and a local product manager from the same facility. Our finding indicates that various forms of knowledge transfer occur within the World Class network, particularly in product development and sales. The transfer occurs within the framework set by World Class with regularly scheduled meetings. In addition informal networks provide other means of knowledge exchange between some units.

Förutsättningar för kunskapsspridning - En fallstudier av affärsområdet Media & Kommunikation inom Cell Network

Sammanfattning Titel Förutsättningar för Kunsskapsspridning- en fallstudie av affärsenheten Media & Kommunikation inom Cell Network Författare Jacob Almstedt, Magnus Nilsson & Anja Trönnberg Handledare Lars Bengtsson & Jan-Inge Lind Seminarium Kandidatseminarium i Tillväxtföretag ? ?hur gick det & hur kan det gå?? Syfte Syftet med denna uppsats är: 1. Att identifiera för fallföretagen relevanta förutsättningar för intern kunskapsspridning och utifrån dessa utveckla en situationsanpassad analysmodell. 2. Att analysera fallföretagen utifrån analysmodellen.

Kommunikation i dubbel bemärkelse : Enkätsstudie av barnfamiljer och SL:s digitala plattformar 

As a result of a successful human development around the world an extensive urbanization of societies are taking place that are networked in various ways. In these networks, increased travel and digitization are central where individuals and organizations converge in a constant and immediate wireless and mobile technology flow. An example of this is Stockholm and its public transportation company Storstockholms Lokaltrafik (SL). Although most participate in most of the network society, SL is struggling with an audience that seldom travel with them: families with children. We intended to find out how the communication of SL´s digital platforms could get families to travel more with public transportation.

Alléers användning genom tiderna i Sverige : en bakgrund till alléns framtida utveckling

Aquatic organisms are usually not exposed to single substances but rather to mixtures of toxicants in streams located in agricultural areas. The transport of pesticides used in the agricultural area in Sweden is monitored with continuous environmental supervision every year. During 2002-2008 an average of 10 pesticides were found in each sample and 40% of the samples contained substances with concentrations higher than the Water Quality Standards. Chemical risk management is normally based on single-test evaluations. A problem when assessing mixture toxicities is that the constituents and concentrations of pollutants in the environment vary greatly.

Analys av PWM-mönster i Matlab

One of ABB Power Systems´s business areas is HVDC (High Voltage Direct Current) technology. HVDC is used for transmissions for both short and long distances. One of Power Systems?s products is called HVDC Light. HVDC Light is a relatively new technology for power transmission, but have before only been used for motor drives applications.

Styrkeförhållandet mellan knäflexorer och knäextensorer

Bakgrund: Inom forskningen studeras styrkeförhållandet i lårets muskler och anges ofta som flexor/extensor kvot (F/E-kvot). Ett sätt att mäta denna kvot är att använda isokinetiska styrketest.  Forskningen är inte överens om ett optimalt styrkeförhållande i denna muskulatur eller om för stor styrkeskillnad kan ge upphov till skada. Om en optimal kvot kan fastställas är det intressant i ett förebyggande och rehabiliterande syfte.  Syfte: Att beskriva och jämföra F/E-kvoten hos en grupp manliga fotbollsspelare med en grupp fysiskt aktiva män mellan 16 och 25 år. Metod: Mätning av maximal isokinetisk styrka i knäledens flexor och extensormuskler genomfördes med Genesis Single. Resultat: Studien fann en F/E-kvot hos fotbollsspelarna på 78,2 % på höger ben och 77 % på vänster ben.

Framväxten av biblioteket i Vaggeryd en studie över de faktorer som kom att påverka biblioteksutvecklingen i Vaggeryd under åren 1862-1953

The purpose of this Masters thesis is to examine the growth of the library in Vaggeryd. We have analysed how four factors influenced the library development during the years between 1862 and 1953. The four factors we have studied are development of society, collective actors, librarys economy and individual actors. We have worked with the following question: · How have the four factors: development of society, collective actors, librarys economy and individual actors, influenced the growth? We have focused on the changes that the industrialization brought on the society development, and on the growing of the non-governmental organisations.

This is the era of the personal brand : En studie om betydelsen av det personliga varumärket i professionella sammanhang i dagens samhälle

Authors: Phia Bergdahl & Karin TydénTitle: This is the era of the personal brand ? a study about the role of a personal brand in a professional context in modern societyLevel: BA Thesis in Media and Communication StudiesLocation: Linnaeus UniversityLanguage: SwedishNumber of pages: 54Background In pursuit of being unique and stand out, it has become fashionable to market yourself as a personal brand. According to some experts on the subject, this has become a necessity for survival in the tough competition about the jobs and the customers. With Internet and social media as a natural element in our society, we also have to relate to these channels when it comes to communicating ourselves.Purpose The purpose of this study is to examine the role of the personal brand in a professional context in modern society and to explore Internet involvement in communicating the brand.TheoriesWe have used Bauman?s theory of ?consumer society?, how we live in a society where we are both the consumers and the goods consumed. We have also used Castells?s theory of "network society" and how its growth is changing our culture.

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