Implementering av FIR filter kan göras på olika sätt. I detta examensarbete har två olika varianter beskrivits med hjälp av VHDL, syntetiserats, simulerats och sedan jämförts med avseende på effektförbrukning..

Obesity and overweight are today classified as one of the largest epidemics in the Western world and is threaten a large part of the population. As a reaction to this a major health trend has emerged in recent decades. Every day consumers are exposed to information from the media about what is healthy or unhealthy to eat and the recommendations change frequently.There is great interest in healthy food on the Swedish food market, but still healthy foods only represents a small proportion of the total food sales. The essay examines the gap between the current and potential demand for healthy food and if it can be explained by any of the following factors: lack of information, price, taste or cognitive behavioral.To study these questions a quantitative method have been used and 213 questionnaires were collected. The intention is to draw general conclusions about the entire population.

Product sharing systems is recently starting to become a more common phenomenon. Carpools exist in more than 40 Swedish towns and both Stockholm and Gothenburg have established bicycle sharing systems. Other products for which sharing systems have been established throughout Sweden are clothing and tools. From the point of view of the consumer, product sharing systems is a form of consumption which can be placed somewhere in between renting and privately owning a product, where the consumers usually pay a membership fee or a monthly fee to have access to the products whenever they need them. The concept is relatively new, and there are many products for which product sharing systems do not exist.

In order to increase the independence in everyday life of the elderly population, we have developed a lifting aid for loading in the private car trunk. Independence from outside assistance affects self-esteem in a positive direction and can help increase the quality of life for a large group of individuals. As people age and experience changes in performance, it is important that aids and support is available, particularly to reduce the experience of aging and it?s increasing physical limitations. The aim was to develop a function prototype characterized by simplicity, which facilitates loading of the private cartrunk.The project was conducted at the request of Autoadapt AB, which is one of the leadingactors in car adaptations for individuals with disablilities.

This master thesis in energy optimization was made during the autumn of 2006 at Käppala wastewater treatment plant in Lidingö, Stockholm. A preceding thesis, where all electricity consumption was mapped, showed that the aeration in the biological treatment is the single largest consumer in the plant, and it is therefore of interest to reduce this cost. The oxygen control strategy used at Käppala WWTP is working well from a nutrient removal point of view, but not from an economic one. The last aerobic zones have a very low oxygen consumption during low loading periods which give rise to enhanced dissolved oxygen concentrations with excessive costs and reduced denitrification as a result. But also during periods of normal loading unnecessary high oxygen concentration are sometimes given.By modifying the aeration control strategy three full-scale experiments have been made, with the intention to reduce the air consumption.

Under de senaste åren har användningen av mobilapplikationer i smartphones ökat och kommer förmodligen fortsätta att göra det. Smartphoneanvändare ställer ofta höga krav och vill nästan alltid ha bättre prestanda i smartphones vilket driver utvecklingen framåt. Dock har många smartphoneanvändare klagat på att batteriet inte räcker till för deras användning. Enligt olika forskare är inte batteriet dåligt utan det är mobilapplikationer som förbrukar för mycket energi. De flesta studier som handlar om energiförbrukningen i mobilapplikationer fokuserar mycket på de tekniska aspekterna och det finns relativt lite kunskap om vad användare tycker om energiförbrukningen.

The decisions for investment are forward-looking and the base of a long-term strategy. The research within investment have focused on diverse formulas which are used in financial assessment, which also should be complemented with qualitative evaluation. Consequently, the focus should not only be on the execution of the formulas. Less time have been spent on research concerning what actually initiates the investment proposals and affects the decision-making. This will be highlighted in this essay.

AbstractTitle: ?Fashion be in fashion? ? a qualitative study of the phenomen fashion blogs (?Mode är på modet? ? en kvalitativ studie av fenomenet modebloggar)Number of Pages: 46 (54 including enclosures)Author: Maria RydströmTutor: Else NygrenCourse: Media and communication studies DPeriod: Spring semester 2007University: Division of Media and Communication, Department of Information Science,Uppsala universityAim: Contribute to the understanding of a yet unexplored domain, fashion blogs. And contribute to a discussion of the roll of fashion blogs in the swedish fashionindustry.Method: Qualitive textual analysis of three fashion blogs and interviews with the authors to the three fashion blogs. Completed with six interviews with experts from the fashionindustry and the blogworld.Main results: The authors behind the fashion blogs are young women living in big cities.They write about fashionnews, runway trends, fashion items and style outfits worn by them selves. Fashion blogs provide a new way to follow trends and spread them to the society.

The decisions for investment are forward-looking and the base of a long-term strategy. The research within investment have focused on diverse formulas which are used in financial assessment, which also should be complemented with qualitative evaluation. Consequently, the focus should not only be on the execution of the formulas. Less time have been spent on research concerning what actually initiates the investment proposals and affects the decision-making. This will be highlighted in this essay.

The traditional lawn is believed to be facing a dilemma. On one hand, it is valuable for people because of its esthetical and functional values. On the other hand, the lawn is perceived as a monoculture without biological diversity that hinders the domestic landscape?s flora and fauna. In this graduation-thesis, the private and public lawn?s dilemma of ?to be or not to be?, is examined from these two different perspectives.

Future emission legislation puts great emphasis on increasing the efficiency of the engine, thereby reducing fuel consumption. The tribological contact between cylinder liner and piston ring is where an great amount of energy is lost due to friction, and by reducing these losses an reduction in fuel consumption can be achieved.The aim of this thesis was to evaluate the tested piston ring coatings against a plasma sprayed cylinder liner and rank these combinations of materials for friction and wear resistance. The coatings that were tested was Cr + Al2O3, (Al,Cr)N, two types of CrN and WC / C.The experimental tests were performed with a so-called pin-plate, where used oil with addition of an acidic mixture of sulfuric and nitric acid to mimic the acidic condensate formed when exhausts recirculate, were added with a continuous flow. The results were then analyzed by weighing, studies by optical microscopy and scanning electron microscopy (SEM) and profile measurements.The results from each material combination were that the plasma coated cylinder liner wears too aggressively in order to yield a ranking of the piston ring coatings based on the parameters of friction and wear resistance. It is therefore proposed that an alternative coating on the cylinder liner should be developed, lacking the large abrasive wear on piston rings and that can withstand the corrosive environment resulting in engines equipped with EGR.

More efficient energy consumption is essential to secure a sustainable future, not least within the building and real estate sector which answers for approximately 40 % of the EU countries total energy consumption. One part of EU: s work to reduce the energy consumption is the directive on energy performance of buildings which among other things have lead to stricter demands on energy performance in new and renovated buildings.One of the difficulties with making buildings more energy effective is that it often demands big investments and although it results in lower operating costs the extent of these savings and therefore also the repayment time can be difficult to decide beforehand. To make it interesting for property owners and also tenants to invest in energy efficient buildings powerful incentives are needed. Favorable loans to energy efficiency projects are one example of governmental instruments that have been tested in other European countries with good results.Reduced operating costs appear to be the main incentive for property owners to make their buildings more energy efficient. The best result of an energy efficiency project is usually achieved by cooperation between property owners and tenants but in order to make that interesting it is important that both parts can profit from the savings.

On a highly competitive market, quality is an important aspect to take into account, both in terms of goods and services. The Swedish timber market is very competitive and to achieve long-term success focus on the customer, in this case private forest owners, is a prerequisite. SCA Skog AB Jämtlands forest management administration is dependent on the acquisition of timber from private forest owners to fulfil their mission to the supply of SCA's paper and sawmills in Sweden with raw material. To be able to develop the cooperation with private forest owners, the administration investigates their quality management by measuring the customer satisfaction index (CSI). The purpose of the study was to identify a practical and systematic method to handle deviations and suggestions for improvements to achieve a higher customer satisfaction.

In 1985 the Swedish Association of Local Authorities and Regions published a paper on recommended depreciation time on capital assets for the public sector. This paper should only be seen as guidance, but many municipals use it without any further investigations. Swedish municipals are not like private companies; one very distinguished difference is that they are not allowed to make any profit. The municipals in Sweden are regulated by the constitution law which means that they can not go bankrupt. The public and the private sector have different legislations that result in different ways on how they for example treat depreciations.

This bachelor thesis describes why investors should invest in environmentally certified buildings instead of non certified buildings. The report provides an overview of possible factors influencing an investor in the investment process of an environmentally certified building. The report explains why building companies find incentive to build green buildings and how a cash flow method can be adapted so it can be used in the valuation process of an environmentally certified building. Environmentally certified buildings are used as a strategy to reduce emissions that threaten the environment as well as a strategy to obtain market shares for the building companies. This report focuses on the economic advantages of an environmentally certified building.The construction- and real estate industry stands for approximately 40 percent of the energy consumption in the world.