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26888 Uppsatser om Common geographical information system - Sida 36 av 1793


En studie av ämnesklassifikationssystemet Outline.

This essay deals with classification of images using the subject classification system Outline. This classification system is used in regional museums and they do often have large collections of pictures. The regional museums have their main focus of culture history. The purpose is to look at Outline from four different aspects: 1. In what way is the system constructed looking at classification theory, 2.

Utvärdering av en beslutsåterkopplad kanalestimator för tredje generationens mobiltelefonisystem

This Masters thesis work describes a comparison between two different methods for estimation of the down channel (base station to mobile subscriber) in Wide-band Code Division Multiple Access (WCDMA). The first estimation method, Optimal Feed-forward Channel Estimation (OFCE), is a conventional method that bases the estimates on data that is known to both sender and receiver, so called pilots. The second method, Decision Directed Channel Estimation (DDCE), is an elaboration of OFCE. It also uses user data for estimation. Simulations show that DDCE, in comparison to OFCE, does not attain an improvement in signal-to-noise-ratio (SNR) for high bit error rates (BER). An improvement is only seen when the BER becomes much lower than what is common in real situations. In conclusion DDCE is complicated, involves many mathematical operations and gives insignificant improvement of SNR when BER takes common values. It is legitimate to question if it is possible to use the method in a real mobile phone system..

BIM-projektering i praktiken

The use of CAD, within the building industry came strongly, during the 1980?s and the 1990?s. The development has since then rapidly progressed and the using of 3D-models has in addition increased. We are now at the edge of next step of evolution. BIM, Building Information Model(ing), is here.

Ny princip för spänningsreglering i Fortum Distributions mellanspänningsnät i Stockholm.

The voltage regulation in Fortum Distributions medium voltage network in Stockholm does not work satisfactory. This results in too high distribution voltages with many customer complaints as a consequence. The reason is the model responsible for compensating for voltage drops in the distribution network. Despite several adjustments Fortum has not been able to find the source of the high voltages and has therefore appointed an investigation in the form of a thesis work.The aim of this investigation is to locate the error and to produce a proposal regarding the solution of this error using the existing system, common industrial knowledge, state of the art research and the option to use voltage readings from the different substations.The conclusion of this master thesis is that the largest contribution to the high voltage levels is made by the large compensation for distribution loses. Furthermore an additional error in the model has been found.

Calf health before and after change in housing system ? isolated barn vs. hutches

Calf health is of importance both from a financial perspective and from an animal welfare point of view. Housing system and environment are factors affecting the calves? health. The objective of this project was to make a review of literature on calf health and housing and to perform an observational study on calf health at Nötcenter Viken, Research Dairy Farm, Lantmännen Sweden that changed calf housing system; from a traditional indoor system (Group IN) to outdoor hutches (Group OUT). It was only the housing system that was changed; the routines and feed were the same in both systems.

Att organisera beståndet eller ?Äntligen hittar man!? : om hylluppställning och exponering på Arkenbiblioteket

The aim of this master?s thesis is to examine how libraries can organize their collections in terms of library shelving and displays and to what extent these activities stem from a desire to create a user-friendly library. The thesis is based upon a case study of Arkenbiblioteket in Sweden and the material consists of a literature study and qualitative, semi-structured interviews with three librarians at Arkenbiblioteket. The theoretical framework consists of theories on information-seeking behavior, classification and displays. These theories form the basis of the analysis of the empirical material.The main reason for the changes in shelf arrangement at Arkenbiblioteket was a desire among the library staff to create a user-friendly library.

Den militära nyttan med Sweccis vid planering av en insats

På operativ och högre taktisk ledningsnivå inom den svenska Försvarsmakten användsidag ledningssystemet Sweccis, Swedish Command and Control Information System.Detta system kan användas till planering och genomförande av insatser inom riketsgränser. Sweccis samlar ett antal funktioner, exempelvis en kartfunktion, ettgeografiskt informationssystem, en logistik-funktioner och en portal förinformationsspridning, i ett system. Till skillnad från tidigare system som använts förledning på högre nivå inom Försvarsmakten är Sweccis ackrediterat för att hanteraHemlig/Secret-information.Sweccis syftar till att möjliggöra funktionen ledning på operativ och högre taktisknivå, i enlighet med de doktriner som Sverige idag använder. Målet är att samordnafysiska faktorer, exempelvis våra arméförband, för att genomföra aktiviteter som skallleda till effekter hos motståndaren. Dessa effekter skall sedan kunna utvärderas för attanvändas som grund för ett kommande genomförande tillsammans med yttre faktorer,så som en ny uppgift från en högre chef.

Beslut som fattas a?r inte ba?ttre a?n den information besluten grundas i

Over the last 25 year IT development has greatly influenced the waycompanies are managed, the tremendous growth in the information society has made a huge amount of information extremely accessible. This has resulted in the problem of information overload where the large amount of information can affect the quality of a decision basis collected by a controller.The purpose of the study is to examine how a controller is affected by information overload and how this influences the decision basis. We intend to highlight the important elements to represent a high quality of information.A survey was conducted through a case study within a global affiliated company in the packaging industry. An adductive approach has been applied with a qualitative research method. Collected empirical material from interviews has been put into relation with existing theories.The case study indicates that there is no relationship between the problem of information overload and flawed decision basis.

Modellering av hydrauliskt aktuatorsystem

This report treats a Master Thesis performed at Scania CV AB. The task was to create a computer model of a hydraulic actuator system in the software AVL Hydsim. The system consists of two spring-loaded masses with surrounding hydraulic components. The purpose of the model is to study phenomenon and problems in the system, as well as to be a support in the development of the system. It is not supposed to be used to study absolute values in its current form.

Ett Excel-baserat informationssystem för IKEAs personalavdelningar

IKEA HaparandaTornio employ some two-hundred people in its furniture retail store.Keeping track of staff statistics and employee information has previously been achievedthrough the use of a basic Microsoft Office Excel spreadsheet. The store?s human resourcesdepartment requested an upgrade to this system with the hope of speeding up andsimplifying the administrative process, as well as to make it easier to monitor HR-relatedtarget statistics. The following report documents the development process of that upgrade ascarried out by the author. The project draws on research in usability design and cognitivepsychology to develop a user-friendly interface.

"Man vill veta hur det går i skolan"

In the fall 2011 a new grading scale will be implemented in the Swedish school. A government bill suggests a change of the scale from a three- to a six-point scale. The students will also be graded from the sixth class instead of today?s eighth. From the first year of the compulsory school the pupil will get a written judgment.

Svensk kod för bolagsstyrning- Hur den svenska koden tillämpas inom större börsbolag

 AbstractDate:                                  2009-06-03Level:                                 Master thesis in Business Administration, 15 pointsAuthors:                            Branka Milencovici            Deniz SolmazTutor:                                Ulla PetterssonTitle:                                  The Swedish code of Corporate Governance - How the code administers in larger stock firms.Problem:                           The Swedish code follows the value of "comply or explain" when firms depart one or several rules, the reasons should be explained in the corporate report. The code does not include reasons for differences, it's up to the management themselves to take action. Is it possible to see if the code has been administered? Do differences prevent? Which are the most common? Is there any motivation?  Purpose:                           The main purpose with this essay is to study how Swedish firms administer the rules of the code in their corporate reports.Method:                            The method for this study is a deductive and qualitative approach. First we studied theory to understand the subject.

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.

Be Wise condomise: a study in Botswana on the spread of AIDS information and how the information is being received

AIDS is a huge problem in the world and it is spreading rapidly, especially in Africa. Botswana is one of the worlds worst-hit countries, with over one-third of the inhabitants infected by HIV/AIDS. The measures that have been taken to stop the spread of AIDS are to inform and enlighten people on how the disease is spread and how to protect oneself. The aim of this thesis is to investigate what different ways of informing people about AIDS different organisations make use of in Botswana. The thesis also addresses how some receivers of the AIDS information experience it.

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