Sökresultat:
3943 Uppsatser om Model simulations - Sida 65 av 263
International and national genetic evaluation of beef cattle : validation of national genetic evaluation models
After a workshop in Kuopio held in June 2006, Interbull decided to go forward with the development of a system for beef international genetic evaluation and a three year project called Interbeef was launched in June 2007. The participating countries are so far limited to Europe and the only trait evaluated at present is adjusted weaning weight (weight at 200 days). The results from a first international genetic evaluation have been shared with the countries but are not yet official. The evaluation is based on data from purebred Charolais and Limousin. To achieve good estimates of proofs in an international context it is important that methods for data validation and model selection are implemented.
Framtidens energieffektiva flerbostadshus
The housing sector of today represents for almost 40% of the energy consumption, an energy consumption of which the major part consists of non-renewable energy sources. This is not sustainable and utilization of new energy-efficient technologies in buildings can be a step in the right direction, towards a sustainable energy society.This report has been made on behalf of and in cooperation with Älvstranden Utveckling AB in Gothenburg to examine how future energy-efficient technologies can affect the energy demand in energy-efficient multi-dwelling buildings.The report is based on Älvstrandens passive house, Hamnhuset, a house whose energy consumption is far below the BBR's requirements. The report looks at the opportunities for improvement within windows, insulation, solar energy technologies, as well as white goods. Computer simulations are then made to apply the selected technologies into a reference building. Technologies are selected from an energy efficient perspective and no account has been taken of other aspects such as the economy.
I sökandet efter objektivitetsidealet : En studie om rapporteringen kring FRA-lagen i Dagens Nyheter och Svenska Dagbladet ur ett objektivitetsperspektiv
The aim of this thesis was to examine what expressions for objectivity there were to identify/find in newspaper journalism?s report about the FRA-law during the period 2008-06- 13 to 2009-10-14.We choose to analyze ten articles from the morning paper Dagens Nyheter and Svenska Dagbladet, five from each one. The method we used was a qualitative text analysis. We then designed an own model for the objectivity ideal from without the old theories that were available and also came with own ideas. Then we used that model as starting-point and designed key points to identify objectivity in the articles.Our thesis showed that the articles often fail when it comes to two key points.
The role of mast cells and mast cell mediators in the development of atopic dermatitis in a mouse model
Atopic dermatitis (AD) is a complex, often lifelong allergic disease affecting around 10 % of both
dogs and humans. The hallmark symptom is severe pruritus, causing a lowered quality of life. Mast
cells (MCs) are known to play an important part of the immunopathogenesis, promoting a faulty T
helper cell type 2 (Th-2) response which follows by a production of specific immunoglobulin E
(IgE) antibodies towards environmental allergens (Ag). To further investigate the role of MCs and
its mediators in the progression of AD, a low-calcemic vitamin D3 analog (MC903) was used to
induce AD-like symptoms locally on the ears of two different knock-out (KO) mouse strains. The
first strain was Wsh-/- mice deficient in MCs.
Framtidens elbilar utmanar nutidens elnät : Påverkan av ett ökat antal elbilar på ett halländskt elnät
The challenges facing low voltage grids are rising as an increasing number of domestic houses transition from fossil fueled heating to electricity based heating. Several environmental goals and visions have the same transition from fossil based power to electricity based power in mind for the transportation sector. One of the most important tools for this transformation is widely regarded to be the electric vehicle. With the demands of the electric vehicle pressuring the power grid, several questions arise regarding the growth of the electric vehicle market and what repercussions it may have on the grid. This paper focuses on a typical low voltage grid in southern Sweden and what effects a growing electric vehicle market may have on it. Through computer-assisted simulations based on several future scenarios regarding the EV market, this paper finds that few modifications and reinforcements are needed on this particular grid within the next 10 to 15 years.
Att dokumentera audiologisk rehabilitering - en studie om audionomens arbetsprocess och journalföring
Audiological rehabilitation is a complex process and can involve medical, educational, psychological, social and technical proceedings. The audiologist's part in this process is essential. The purpose of the study was twofold: to describe the audiologist's working process and to explore patient records written by audiologists according to structure, content and comprehensiveness. Method. Out of rules and regulations, code of ethics and literature concerning audiological rehabilitation from the audiologist's point of view, a model for the audiologist's working process was developed.
Risker med patienters användning av elektrisk utrustning under hemodialysbehandling
The background to this report is the author?s ambition to understand individuals? work situation, how it?s formed in interaction between the individual and factors in the work-setting. Such an ambition is well in line with the concept of Human-Technology-Organization (HTO), a cross-scientific approach that puts a system-oriented perspective on how human, technolog-ical and organizational factors interact within work systems.The aim of this report was to explore managers? work-situation and generate an understanding of it from an HTO-perspective by using an organizational model as a framework for an interview guide and to analyze the work situation from an HTO-perspective following the ques-tions at issue:1. How does the managers experience their work situation?2.
Småskalig elproduktion i urban miljö : Fallstudie av elproducerande system på ett handelscentrum
This thesis investigates if a system for small scale electricity production located in anurban environment can be profitable. The work has been divided up into two parts,one extensive literature study and one case study. The purpose of the literature studywas to investigate the area, resulting in a choice of which technology to be studied indepth in a case study.In the case study a system containing small scale wind turbines and photovoltaicsmounted on Gränby Centrums roof was examined. From data containing wind power,wind direction and total irradiation, possible production from a system weresimulated. Three products of each technology were examined in the simulations.From the simulated production an economic analysis was carried out, this toinvestigate if a system is profitable.
Kassaflöde och Kapitalbindning. En studie av vilka åtgärder och faktorer som vägs in i beslutssituationer i bygg- och anläggningsbranschen.
Background: Today there are high claims on organizations to show a positive economic view. To satisfy the demands and expectations from interested parties it is very important to carefully plan the companies tied up capital and cash flows. Purpose: The purpose with the thesis is to describe what actions organizations take to resolve the conflict between showing a positive cash flow and the need to tie up capital.The purpose is also to explain the different factors that must be considered when making decisions regarding cash flow and capital tied up. Method: A qualitative study of the actions and factors wich must be considered when decisions in swedish construction companies are made regarding cash flow and capital tied up. Results: A model of the factors and actions that affect cash flow and capital tied up in projects.
Prognoser av räntabilitet på eget kapital - En studie av hur Re-prognoser påverkas vid en uppdelning av hävstångsformelns komponenter
Forecasting is an important part in attempting to predict how companies will perform in the future. The more accurate the prediction, the more valuable are the results obtained from the forecast. This thesis aims to investigate forecasts of return on equity, and whether a disaggregation of the leverage formula into its underlying components affects the forecasting ability positively. This is conducted by comparing a model based on the leverage formula's components with a model solely based on return on equity from previous years. The study includes manufacturing companies on the Swedish Stock Exchange over the period 1998-2011.
FEM i praktiken : En studie i FEM-Designs användningsområden inom konstruktionsprojektering
This diploma work has been conducted for the consulting company Ramböll inUppsala, Sweden with the purpose to perform a study with the calculation programFEM Design 9.0 made by Strusoft. The aim has been to find out if it is possible to gainadvantage by utilizing more advanced 3D software for design calculations, instead ofthe traditional methods currently used in construction works.The method of approach has been to model an existing warehouse building with theprogram FEM Design, and then compare the results with those attained with FrameAnalysis and hand calculations. These results are then analyzed. An evaluation is maderegarding to what benefits can be achieved using a more advanced 3D-model.The results of the study show that the differences between the methods are not ofany significance with regard to the design of the steel frame. However in morecomplex materials such as reinforced concrete, the differences become more notable.The conclusions drawn by the authors of this study into FEM Design are that theeducation requirements of the program are higher than for simpler programs, whosepurpose are solving predetermined problems.
Name your price - a study of a pricing strategy
An industry in distress was the breeding ground for a noted pricing strategy, labeled name-your-price. The industry was the music industry and the pricing strategy bears reminiscence of how medieval buskers earned their living during the dark ages; by letting the customers decide how much the good was worth, embodied by a thrown coin into a hat or similar collector. Translated into the contemporary corporate environment of today, where technical innovations provides access to the intellectual property for free, a few mighty economic actors have once again turned to the strategy were it all started; letting the customer set the price. The hat has been replaced by a box for your credit card number and the live music by a MP3 file, but the similarity is striking. The business model have been applied in other industries as well with various levels of success, thus the purpose of this thesis is to set up a framework for where the name-your-price strategy is applicable.
Turkiet vänder blickarna mot öster : -en fallstudie av Turkiets utrikespolitiska förändring gentemot Mellanöstern
AbstractTurkey has emerged as a major actor in the Middle East over the last decade, since the ruling party AKP came to power in 2002. Turkey is now playing a mediation role in regional conflicts and has been speaking out loudly on sensitive issues such as the Iranian nuclear program and the Palestinian- Israeli conflict. Furthermore, Turkey has established close ties with the Arab world which has suffered the relationship with its long-time ally Israel. This new presence in Middle East has been criticized by Turkey's allies in west. Critics argue that the country is about to abandon its former western relationship and strengthen their ties with the Arab world instead.This thesis has two main purposes.
Organisering av komplexa organisationer - En studie av den svenska spårunderhållsorganisationen
To achieve a working collaboration in a big, complex organization where there are vast requirements on both quality and profitability is not always an easy task. An example of this is the organization that was created in the Swedish railway industry following a series of deregulations during the past 25 years. A partial market in this organization is the railway maintenance. In order to achieve a working collaboration between actors in this organization the so-called Purchaser-provider model (PPM) is presently used for the procurement of rail maintenance projects. Previous research has shown that this market-based instrument has clear positive effects regarding the cost-efficiency but hinders the collaboration.
Olika fönster mot samma omvärld ? En undersökning av omvärldsbevakningen på Stockholms stadsbibliotek och Akademibokhandeln i Stockholm
The aim of this thesis is to explore how a bookstore chain and a public library meet the needs of their customers through environmental scanning. The empirical material is derived from six semi-structured interviews with six informants, three from each organization, together with an analysis of internal documents. The method used is a case study and the theoretical framework is based on models used in the process of environmental scanning, as described by Choo, Hamrefors and Hedin & Sandström among others, and which facilitate a comparison of the environmental scanning of the two organizations. The results of the study indicate that the library, as a public organization with a mission in society, perceives the environment as society as a whole and all its members as their users, whereas the bookstore concentrates on the sectors of the environment that affect their sales. The consequences of these different views are that the library is more active in the environment and uses surveys as a basic source of information, while the bookstore is more passive, and relies on statistics for information.