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3997 Uppsatser om Channel model - Sida 33 av 267
Simulering av simulinkmodeller medExtended Kalman FilterTidsoptimering av integrering
Simulation of different systems can be done using a graphical model description of the system based on block diagrams. The simulation software Matlab/Simulink offers a lot of possibilities to describe a huge number of systems, which can be linear as well as nonlinear. The simulation using Matlab/Simulink is done by integration based on different kinds of numerical methods.When nonlinear Simulink-models are simulated, it is often interesting to apply a Kalman filter to handle the noise that may occur within the process as well as corrupting the measurement. However, application of such a filter leads to an extensive time-consumption despite using fast computers. The reason is that the existing Matlab functions are not constructed for time optimal evaluation.
Metod för användning av Geografiska Informations System vid långsiktig vägplanering : en studie genomförd på Sveaskogs marker i Norrbotten
The forest industry is one of the most important industry branches in Sweden. Since the demand of high precision wood deliveries has increased, the demand on a well constructed forest road net also has increased. A good road net gives the wood-supplier competition advantages and also increases its service level towards its customers, lumber-mills and pulp-mills. In some parts of Norrbotten, the road net is still insufficient and not yet built out enough, and that is why it is important to know how to act and where to improve the road net in these areas.
The purpose of this thesis was to create a work-model for long term road planning in areas with no road net or a not yet complete road net. The model has been created in an ArcGis environment, where a long chain of tools has been tied together with the program ?Model builder?.
Energi- och exergiflöden i stålframställningsprocesser vid
SSAB Tunnplåt AB i Luleå
Energy costs are high nowadays and that is the reason why the energy consumption needs to become as small as possible in most of the companies. To accomplish the small energy usage one needs to map the energy flows, study them and monitor them. One method that can be used for this is energy balance calculation. The method gives an opportunity to separate different energy flows and see where each flow is heading. There is also another method which is more advanced than energy balance calculation.
Den skamlöse Jesus : Tempelrensning, en kamp om heder
This paper aims to explore the possibility of reading the Temple cleansing stories of John and Mark through Bruce J Malina?s honor/shame model, as E. Randolph Richards do. The analysis searches in John?s and Mark?s Temple cleansings for the presence of the notions of honor and shame, as Malina uses those concepts in his model.
Migration och vegetationsupptag av radiocesium i åkermark - en långtidsserie av mätdata samt en långsiktig simuleringsmodell :
Abstract
The accident in 1986 at the nuclear power station in Chernobyl, Ukraine, dispersed radioactive cesium over large areas of Europe. The half life of 137Cs is 30 years and this radionuclide also behaves like potassium, which means that it can easily be taken up by the vegetation or be adsorbed in to the structure of clays, principally illitic clays. When radiocesium decays ionizing radiation is emitted, which is harmful to humans that are exposed, either directly or indirectly through food intake. It is there-fore important to know what happens to the cesium that is dispersed into the environ-ment.
In this project a simulation model was constructed to simulate the adsorption and transport of radiocesium in the soil and plant uptake.
Fastighetsbolagens val att redovisa till verkligt värde eller anskaffningsvärde : En studie om vilka faktorer som påverkar företag i deras val av redovisningsmetod
IAS 40 allows two methods of valuation for investment properties, fair value model and cost model. The purpose of this paper is to investigate what drive property companies to disclose their investment properties at fair value. In order to understand their choice, we use accounting choice theory and the three factors this theory describes, information asymmetry, allowing opportunism and agency costs. To answer our purpose, we have from a qualitative approach performed semi-structured interviews with respondents from five of the largest listed property companies in Sweden. The results suggest that firms have chosen the method that is most effective in the valuation of investment properties.
Motivationens betydelse för arbete i hemtjänst : en studie av personalens uppfattningar
Purpose: The purpose of this essay is to describe the social media usage of five European official national tourism organizations (NTO). The essay proceeds to discuss and evaluate the findings, whilst reflecting on the advantages of social media usage from the point of view of an official national tourism organization.Method: The authors used three different methods of research: one structured observation to study the national tourism organizations? everyday work in social media, one field stimulation to study if and how different NTO respond if a prospective visitor makes them a direct question via social media and finally an email interview to gain insight into NTO?s underlying strategies and policies about social media usage.Theoretical framework: The theories that have been used in this paper include the Uses and gratifications model, theories of one-way and multi-way communication, theories of social media and relationship marketing.Conclusion: By making use of social media the company releases some of its control to the customers as the latter can express their opinions freely in this type of media. One of the advantages of social media is that the platform favors dialogue and feedback. Social media can be used for traditional one-way communication, but works best as a supplement to the regular marketing activities, allowing the activities on social media platforms to focus on branding and building long-term customer relationships.
En karneval går inte att stoppa : En designpedagogisk undersökning om barn och normer
Purpose: The purpose of this essay is to describe the social media usage of five European official national tourism organizations (NTO). The essay proceeds to discuss and evaluate the findings, whilst reflecting on the advantages of social media usage from the point of view of an official national tourism organization.Method: The authors used three different methods of research: one structured observation to study the national tourism organizations? everyday work in social media, one field stimulation to study if and how different NTO respond if a prospective visitor makes them a direct question via social media and finally an email interview to gain insight into NTO?s underlying strategies and policies about social media usage.Theoretical framework: The theories that have been used in this paper include the Uses and gratifications model, theories of one-way and multi-way communication, theories of social media and relationship marketing.Conclusion: By making use of social media the company releases some of its control to the customers as the latter can express their opinions freely in this type of media. One of the advantages of social media is that the platform favors dialogue and feedback. Social media can be used for traditional one-way communication, but works best as a supplement to the regular marketing activities, allowing the activities on social media platforms to focus on branding and building long-term customer relationships.
Dell from a intellectual capital perspective (working title)
Purpose: We will understand and explain Dell?s value gap through an extended intellectual capital theory. This will be done by deriving the value to the different parts of the intellectual capital value scheme. We will also use value scheme to describe the ongoing strategy shift. Methodology: The qualitative method and an abductive reasoning have been employed during the progress.
Utveckling av ledningsmodell : Utredning av en sektions framtida ledning och styrning på Saab AB
As a consequence of the exports of Saab AB?s airplane 39 Gripen the departmentFATPA has grown and developed substantially in a short period of time. With the aim toclearly define and describe the establishment and its new work procedures and routines,which are meant to be applied after the turn of the year 2005/2006, FATPA is aiming todevelop a management model which will contain the above. The purpose of themanagement model is to describe how the department FATPA wants to work, especiallywith consideration to the department?s management.
Planering : fallstudie av en mjölkgård
The purpose of this paper is to give examples of different ways of economic planning and
calculation within agriculcture. My aim is to use a couple of them as an explanation of a case
from reality. My choice went to budgetsimulation and balanced scorecard since those are best
suited in this specific case.
In the information retrieval I present different instruments of economic planning like theory of
cost, budget and productcalculation. The budgetsimulation describes how to use the different
methods in a long term economic planning. The balanced scorecard is also a model of longand
short-term planning but besides the economy planning it?s also a reminder of your
personal goals.
In the model I have used a dairyfarm as a case.
Centraliserad personalavdelning- bästa verktyget för chefsstöd? : En kvalitativ studie om arbetssituationen relaterat till chefsstödet från personalavdelningen vid Uppsala kommun.
Changes in the workplace have led to new ways of organizing and structuring organizations. Organizations? desire to increase competitiveness, efficiency and flexibility has resulted in new conditions in the field of human resources. The new conditions have also created new roles and changing responsibilities for those working within human resources.The purpose of this study was to investigate how the implementation of Ulrich's model for HR transformation can impact on the human resource departments managerial support to first-line managers in the municipality of Uppsala. Today the municipality of Uppsala organizes its human resources based on the Ulrich's model, which divides the work into the units service center, the expert unit and business partners.
Nivågruppering
The aim of this essay is to examine if the attitudes and the experiences of Ability Grouping are the same on different levels of the school organisation.I have chosen to answer the following two questions:· Have the teachers, the students and the headmaster the same idea concerning the educational model at the school, that is, the pros and cons of Ability Grouping?· Does the intentions of the curriculum agree with this educational model?I knew what I thought about the educational model at the school that is the object of this essay, after spending ten weeks at it as a trainee, but I felt that I would be interesting to know what the people who are part of that system everyday think about it.In order to be able to answer my questions, I used both the qualitative and the quantitative method. I interviewed the headmaster and five teachers to find out what they thought about Ability Grouping. I also distributed inquiries to 70 students from 6th to 9th grade to get their point of view. In the theoretical discussion I explain the meaning of different conceptions that I use throughout this essay.
Modellering och reglering av mjölkningsrobot
In this master thesis a robot arm belonging to an automatic milking machine from DeLaval is investigated. The robot arm is controlled by a pneumatic cylinder and a valve. The goal of the master thesis is to investigate instability problems and to find out if it is possible to solve them by using gain scheduling. Gain scheduling is a type of controller where the parameters of the controller are changed during operation, for example depending on the working point. First a nonlinear mathematical model of the system was made.
3D-byggnadsmodeller utifrån takkonstruktioner : Lagring, hantering och bearbetning
A growing number of cities and municipalities in Sweden begin to work with city models in 3D. For the most part the models are used for visualizations of ongoing planning processes, but also for the analysis of noise, shadow studies and environmental disaster simulations.Gothenburg continues to develop the use of 3D maps in municipal operations and is demanding a way to create building elements (walls), which generates in 3D buildings, from roof constructions that are mapped from the primary map. A method has been investigated in the present study. The results are then presented as a 3D model of buildings, along with a terrain map that will facilitate the localization of the area. The created 3D buildings are then compared with roof-data from the primary map to see how well they harmonize with each other.