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5057 Uppsatser om Theoretical models - Sida 4 av 338

Utveckling och tillämpning av modeller förkvantifiering av de ekonomiska konsekvensernaav ökad förbrukningsflexibilitet inom eldistribution

One step towards a more sustainable energy system is to create a more flexible electrical grid, where increased demand response among electricity consumers can play an important role. A distribution grid owner can encourage their customers to use electricity more evenly distributed during the day by introducing different types of grid fees such as time-differentiated power tariffs. In this master thesis, the theoretical economic impact of a flattened load profile for a distribution grid owner is investigated. Different factors that impact the distribution grid owner?s economy are identified and two are chosen to be quantified; losses in the grid and the fee to the feeding grid.

Informationskompetens - färdighet eller insikt? En jämförelse mellan två modeller över begreppet informationskompetens

This Master's thesis in library and information science aims to shed light on the concept of information literacy in higher education, particularly as manifested in two dissertations on the subject. Two models of information literacy are compared: Christina Doyle's list of ten attributes for students to master and Christine Bruce's seven conceptions of information literacy. The cognitive-behaviourist tradition in Doyle's study and the alternative, phenomenographic approach in Bruce's research are compared and commented. The taxonomies and internal relationship between separate components in the two models are investigated, as well as the ways the models relate to each other. The respective views of knowledge and learning are described.

Att påverka sina preferenser: en analys av rationalitet och preferensdynamik (v 1.1)

Actors deliberately change their preferences, contrary to the assumptions of rational decision models. This study shows why, and to some extent how. Preferences are necessarily ambiguous and unstable. Rationality is a regulating myth which has had a profound influence on Western conceptions of what an actor is.The aim of this study is to help individual actors understand the theoretical grounds of their actions. The analysis provides tools for examining decision methods and preference changes.

Liv i den övergivna trädgården? : Tro och sekularisering i Sverige, speglad mot dominerande teorier om sekulariseringsprocesser

This master thesis summarizes contemporary theories on secularization processes in the Western world, and compares these with the example of Sweden, which by many scholars is considered to be the most secularized country in the Western world.I do this by dividing the most influential theorists in five different groups. In each group I explain how the theorists formulate and motivate their positions. These groups are:1) The secularization paradigm, where secularization always accompanies modernization. (Therorists: Steve Bruce and Peter Berger (in the 1960s)2) The paradigm basically accepted, but revised to depend on existential security, rather than modernisation as such. (Pippa Norris and Ronald Inglehart)3) Religion returned in the public sphere.

Hållfasthetssortering av plankor med hjälp av röntgendata

The aim of this thesis is to find a statistical model that sort logs according to a predicted modulus of elasticity on the sawn boards. The input parameters for the model are X-ray variables from an X-ray scanner. For some of the log classes sawn at the sawmill it is desirable to have a narrow distribution of modulus of elasticity on the sawn boards. 250 pine logs from five different diameter classes were numbered and followed through the sawmill process. Log data were collected from X-ray and 3-D scanners in the log intake.

Dubbel problematik kräver dubbel kunskap. : En kvalitativ studie i hur samverkan mellan socialtjänstens missbruksvård och psykiatrin sker kring personer med dubbeldiagnos, med fokus på hur deras respektive kunskaps- och förklaringsmodeller påverkar samver

People with severe mental illness and co-occurring substance abuse are an especially vulnerable group in society as health care for those is shared between municipality and county council. There is an associated health need of this target group so the interaction of the social services and the psychiatric care is of great importance. However, there are shortcomings in this interaction with results in that people with dual diagnosis do not always receive adequate care. Diverse knowledge and explanatory models may create problems for the interaction as they include different ways to define, understand, explain and deal with a problem. The purpose of this study was to examine how the interaction between the social service addiction treatment and the psychiatric care is, concerning people with dual diagnosis, focusing on how their respective knowledge and explanatory models affect the interaction.

Life Cycle Cost : Studie om LCC som verktyg att utva?rdera geoenergianla?ggningar

Life Cycle Cost, often abbreviated as LCC, is a common tool for comparing the total cost of different alternatives, such as heating and cooling methods. Common heating and cooling methods in Sweden are geothermal energy, district heating and district cooling. This report aims to evaluate how different heating and cooling methods differ from each other while being applied on three different types of buildings, using selected LCC-models. Information about the selected LCC-models wasretrieved from each separate model and its website. Reports and agencies were used as sources for information about the heating and cooling methods.

Riskhantering : Hur applicerar svenska fondbolag teoretiska riskhanteringsmodeller i praktiken?

There are different types of risk, examples include credit risk, liquidity risk and financial risk. In DeMarzo & Berk (2011, s. 293) is a study presented which is based on the yield of different types of financial assets between 1925 and 2009, the study show that a high risk gave substantially higher reward. With the study as a background, it is interesting to study practical risk management within participants of the financial markets of Sweden. In risk management there are several theories about whether risk can be calculated and analyzed with scientific methods in practice.

Utvärdering av Transportstyrelsens flygtrafiksmodeller

The Swedish Transport Agency has for a long time collected data on a monthly basis for different variables that are used to make predictions, short projections as well as longer projections. They have used SAS for producing statistical models in air transport. The model with the largest value of coefficient of determination is the method that has been used for a long time. The Swedish Transport Agency felt it was time for an evaluation of their models and methods of how projections is estimated, they would also explore the possibilities to use different, completely new models for forecasting air travel. This Bachelor thesis examines how the Holt-Winters method does compare with SARIMA, error terms such as RMSE, MAPE, R2, AIC and BIC  will be compared between the methods. The results which have been produced showing that there may be a risk that the Holt-Winters models adepts a bit too well in a few variables in which Holt-Winters method has been adapted.

Skönhet kommer från Photoshop - En studie om effekter av retuscherade modeller i reklam

There are widespread discussions about the use of retouched models in media, ranging from bloggers to legal decision-makers. Research shows that there are negative psychological effects on especially females being exposed to idealized, retouched model images. The purpose of this paper is to explore the effects of using retouched models in advertising from a marketing perspective, based on attitudes, perceived quality and purchase intentions.Based on theories about attractiveness, halo-effects and social comparison, an experimental study was done, investigating the different responses on above mentioned parameters to advertisements showing either retouched model images or non-retouched model images. Initially it was also tested if the retouched models were seen as more attractive than the non-retouched models. The results showed almost no differences between the reactions to the advertisements with retouched models compared to the advertisements with non-retouched models, when all respondent groups were analyzed together.

Prediktioner och förklaringsmodeller för konkurser i aktiebolag - en studie av tre svenska aktiebolag i konkurs

Title: Predictions and explanation models for bankruptcy in stock-companies ? A study of three failed Swedish companies Author: Tim Svanberg Supervisor: Emil Numminen Department: School of Management, Blekinge Institute of technology Course: Bachelor?s thesis in business administration, 10 credits Purpose: The purpose of the thesis is to find explanation for bankruptcy with the help of prediction models. The purpose is also to add explanation by using Behavioral analysis Method: Quantitative research of bankruptcies using financial prediction models and qualitative study of psychological pitfalls. The study is deductive. Results: I found that it is possible to explain the bankruptcies using the prediction models. The behavioural perspective adds further explanation.

Simulering av hydrauliska dämpare i borrslagverk

This master thesis consists of the creation of shock absorber models for percussive rock drills. A model of the rock was also developed. These models were connected to existing models of the rock drill to create a complete simulation of the rock drilling process.When the models had been created the rock model was evaluated by comparison with measured values from lab tests. The verified rock model was then used to evaluate the shock absorber models.Four new shock absorber concepts have been developed. Three of these have been modelled, while the fourth have only been sketched and described.The evaluation of the models showed the following:? Simulations of the single shock absorber don?t correlate to reality very well.

Evaluation and Comparison of Ecological Models Simulating Nitrogen Processes in Treatment Wetlands,Implemented in Modelica

Two ecological models of nitrogen processes in treatment wetlands have been evaluated and compared. These models have been implemented, simulated, and visualized in the Modelica language. The differences and similarities between the Modelica modeling environment used in this thesis and other environments or tools for ecological modeling have been evaluated. The modeling tools evaluated are PowerSim, Simile, Stella, the MathModelica Model Editor, and WEST. The evaluation and the analysis have been performed using McCall?s factors for software quality (McCall et al, 1977), a correlation analysis and the Constant Comparative Method (Glaser&Strauss, 1999).

Is less more?

Back in the 1950s Marilyn Monroe and her hourglass shaped body was the aesthetic ideal for how models were to look like. Nowadays, the tide has turned. Research has shown that female models are becoming increasingly taller, narrower and straighter. This trend has occurred despite the fact that both men and women (still) prefer medium sized women with curvy bodies. This essay examines if this trend can be justified from a marketer's perspective.

Inclusive business and shared values : case study of Stora Enso in Lao PDR

Businesses role in society is changing. Corporations are expected to take responsibility, not only for their traditional business conduct, but also for social and political issues. A rise in globalization and international trade has led to an increased interest in the concept of CSR. Accordingly, stakeholders are expecting multinational companies to be accountable for existing issues in developing countries. New business models are needed to meet increased expectations of responsibility and shared value creation. Based on an understanding of the need for new business models a multinational corporation is studied in a local context, where a radically new way of doing business is developed.

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