New method for measuring road quality- A statisticalstudy of the relationship between road quality andsocioeconomic development A new tool with implications for road maintenance has the potential to yield statistical data for road quality in a large number of regions. This thesis investigates the possibility to develop a method, from this data, for evaluating the effects of road quality on socioeconomic development.The thesis is essentially divided into two parts. Part one looks to qualitatively establish the link between socioeconomic development and road quality and the second part focuses on how to develop a method for evaluating the effects of road quality on socioeconomic development. A method was devised using categorical data and a multinomial regression model. This method provides a comprehensive overview of the complex relationship between a variety of different variables.

Results have shown that flow batteries may be a solution in the future as an effective and environmental friendly method to an energy storage system (ESS). The technology is reliable and has a high efficiency that comes with low energy losses and a long lifetime. The range of possible fields is suitable for cutting energy peaks in the power grid, by always have a ready and available energy storage that balances the production. By comparing the advantages of flow batteries with conventional batteries it is mainly the fact that they can conserve energy for a long time without being self-discharged thanks to that the storage capacity is in principle endless and limited by the size of the electrolytes tanks that makes them a great energy storage system. The batteries won?t take any damage or decrease in performance when charging or discharging it or if you exhausts it to 100 % and leave it discharged for a long time.

Regeneration with scarification and planting is a well known method, but the plants have a tuff period in the beginning. Decease of plants comes from pine weevils, dry weather, browsers, wrong method of scarification and wrong time for the planting. These are some courses why not every planting gets successful. The purpose with this study is to investigate witch time of planting gives the best result, spring or autumn planting and to give a answer of witch factors are the main course of deceases. The goal is to have the study to decide witch time to plant after final felling. The choices of plantings were maid from a period of three years. Spring plantings were from year 2005, 2006 and 2007 and autumn plantings were from 2004, 2005, and 2006.The purpose was to compare differences in deceases at the same spring weather.

Voltage sag indices are a way of quantifying the performance of the power supply, as far as voltage sags are concerned. Indices can be defined for individual events, for individual sites, and for a whole system. A standard method for single-event methods is part of IEC standard 61000-4-30.This thesis emphasizes the importance of voltage sag indices and different methods for calculating three-phase voltage sag characteristics. Three-phase events measured in a medium network voltage over period of one month were analyzed, results examined and statistically evaluated. An algorithm for calculating voltage sag characteristics and indices was created in Matlab.

Background: From a public health perspective it is of great interest to prevent the risk of noise induced hearing loss, because in addition to hearing loss, tinnitus and sound sensitivity also may lead to other health problems. About 1,4 million people in Sweden live with some form of hearing loss and 25000 of them are children under the age of 16. Studies have shown that hearing loss among adolescents is increasing and it is often associated with sound environments in their leisure time. Lectures in hearing prevention has been conducted in schools for adolescents but have not reached the desired results. Objective: To enquire caregivers? attitude, behaviour and perceived knowledge about sound exposure and its risks.

The study presented here is about how to make the special needs user who has a profound intellectual disability and additional disabilities more involved in their implementation plan. Based on a life story interview the study aims at analyzing perceptions of procedures to enhance special needs users? influence. The method used in this study was a qualitative research approach as an overall approach in order to use a narrative method where life history is the method. The focus has been to study a part of an individual life history - a specific domain in the life of the interviewee?s working career.

Denna slutreflektion kommer att beskriva planeringen och utvecklingen av en alternativ sorts arbetsmetod kallad Cloudmetoden, vilken lämpar sig för mindre arbetsgrupper som utvecklar digitala medier (i vårt fall spelproduktion). Slutreflektionen kommer att innehålla beskrivningar om vilket typ av problematik som gjorde att vi valde att skapa ett eget sätt att arbeta. Vi diskuterar och jämför vår arbetsmetod med redan existerande projektmetoder inom digitala spel. Vi kommer nämna de produkter som har skapats med hjälp av vårt arbetssätt och hur vi arbetade med dessa. Nyckelord: Cloudmetoden, spelproduktion, projektmetod, alternativ, digitala medier.

The decomposition of organic carbon in drained peat soils is a major source of carbon di-oxide in Sweden. A big part of these drained peat soils are used in agriculture and it is a big challenge to slow down their decomposition. It has earlier been thought that less tilling and higher water table levels would decrease the activity of soil microbes and thereby the decomposition, but recent experiments has showed that this has little or no effect. In this bachelor thesis a field experiment was made on drained peat soil with ley, outside Björklinge, Uppsala municipality, Sweden. The experiment was carried out in May 2011. The objective was to develop a method to examine how the net exchange of carbon diox-ide from plant covered peat soil is affected by temperature and photosynthetically active radiation (PAR).

In order to avoid harmful substances ending up at the municipal sewage treatment plants, it is important to purify the wastewater at the source. One such source is the wheel washers available in many tire garages which are used to wash the wheels on our vehicles when we change between summer and winter tires. It is important to wash the wheels before storage, to extend the tires lifetime. The purpose of this study is to find a green innovative solution for reduction of emissions of heavy metals at the source, so that the sludge from the sewage treatment plants can be used as fertilizer. The target is to find a wheel wash method which leads to compliance with the guidelines for car washers, and that also provides a better washing result than with the existing method.

Compressed air is an energy source that is widely used in today's trucks and buses.Compressor located next to the engine supplies the pneumatic system with the compressed air and is lubricated with the engine oil. Some of the oil follows the air flow in both liquid and solid phase. The solid phase, namely the carbon particles are created due to the high temperature in the compression chamber.Oil- and particles carryover softens and destroys the rubber material in the air valves and disturbs the mechanical function of various components in the pneumatic system. In order to reduce oil- and particles carryover is an Air Processing System (APS) set downstream the compressor.No method for establishment of oil- and particles carryover from the compressor exists at the moment. Therefore the filtration efficiency of APS is currently unknown.

The objective of this study is to examine how Lean can make the utilization of inventory more effective and, from a Lean perspective, examine how the value-adding activities related to inventory can increase. To examine this, a case study was perfomed at Svenska Fönster. The conclusions of this study are that Lean can advantageously be applied on inventory to increase the efficiency. .

Backround: Many studies indicate that people with mental illness often suffer from physical illness. Many people with mental illness do not exercise even though they often have knowledge about the benefits of physical activity. Studies suggest that psychiatric patients have the desire to have an everyday life with more content. It is apparent in studies that healthcare professionals believe that it is the patients' own responsibility to keep themselves physically active.Aim: The primary objective with this study is to examine motivation and possible obstacles to exercise for persons with self-perceived mental illness and experience of psychiatric care. The secondary objective is to investigate how psychiatric care may be of importance to people with mental illness when it comes to exercise.Methods: Semi-structured interviews.

The objective of this study is to examine how Lean can make the utilization of inventory more effective and, from a Lean perspective, examine how the value-adding activities related to inventory can increase. To examine this, a case study was perfomed at Svenska Fönster. The conclusions of this study are that Lean can advantageously be applied on inventory to increase the efficiency. .

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).

The purpose of this essay is to review the Swedish international development cooperation carried out by Sida to control whether the implementation of the international aid is compatible with the policy. There are a lot of different ways to implement the economic aid that are being used by the donors today. The Swedish method has since the 1960s mainly been focused on attempting to diminish the poverty in the world. In the latest time another goal has been added, that is a focus on supporting the civil rights. This essay will be concentrated to aim on what kind of countries receiving aid from Sweden, and exactly why these countries are being chosen.The main question of this essay is: What countries are receiving the international developing aid, and how can this distribution be understood? To answer the main question there are two themes in the essay:? What kind of countries is supposed to receive developing aid from Sweden according to the policy?? What kind of countries is receiving the aid, and how can this be understood?This essay is mainly based on quantitative data obtained from Sida, together with index of corruption and poverty will the different types of Swedish cooperation countries be described.The conclusions of this essay are that there are two objectives of the policy: to fight poverty, and to strengthen the civil rights.