Active headsets have been on the market for years and now it is time for something else to enter the stage. The technology of active noise reduction can for exmple also be used in ventilation systems for reducing ventilation noise. An active control system principally consists of four important components, namely the downstream error microphone, the upstream detection or reference microphone, the digital signal processor (DSP) and a loudspeaker. The upstream reference microphone listen to the primary ventilation noise and sends it to the DSP which makes a phase shift to the signal and sends it to the loudspeaker. The loudspeaker sends out the opposite waveform of the incoming one and reduce the primary ventilation noise.

This project is implemented as a thesis at the Royal Institute of Technology in the master?s degree program Integrated Product Design and Industrial Design Engineering. The project has involved development and efficiency of a free starter package for expectant parents with useful content consisting of useful products for both before and after childbirth. Areas that have been investigated include packaging development, service design and appropriate content for the package.During the work, theory about packaging design, materials, manufacturing techniques and logistics have been processed to base the further work on. The project process has involved competitor analysis and interviews with store owners and customer surveys, that have been conducted to identify areas for improvement of the current solution.

Today there are many system development projects that break both budget and time plan. Often this depends on defects in the information systems that could have been prevented. The cost of test can in some cases be as high as 50 % of the projects total cost and it's at the same time an important part of development. Test as such has moved its focus from the software it self and its faults to a wider perspective on whole infrastructures of information systems where assure a good quality is important. Sogeti in the Netherlands have developed a test method called TMap (Test Management approach) that can be used for structured testing of information systems.

This rapport is based on a survey that was sent to 196 randomly selected forest owners, who during 2013 ordered a forest management plan from Norra Skogsägarna. The purpose was to examine how forest owners experienced advice given by an inspector based on their forest management plan..

This thesis is a feasibility study into how Fresenius Kabi may rationalize their destruction process in regards to cost, recycling, and work environment. The two main objectives are to identify scrap flows and the possibility to improve or replace the equipment that is now carrying out the physical scrapping. The flow has been visualized by a flow chart of the material and communication. A chart of the problem established to visualize where improvements are necessary. Based on the problems proposals are presented on how to improve the flow thru the plant.During analyze of the physical scrapping equipment it was also necessary to take a deeper look at how they are carrying out there work today, how does the procedure look like, working environment and where are the weaknesses.

The purpose with this project is to explore and verify three renovating systems for Miljonprogrammet (common expression forbuildings constructed during the years 1965-1975 when over a million houses where built in Sweden) to take measure to thelargely transmission losses of these buildings. Many of the buildings from this period have similar constructions and thereforethe same techniques can be used to renovate several of them. This project only considers the climate scale, although thereare many more factors to concern for to efficient the buildings of Miljonprogrammet.This thesis presents examples of renovations carried out using two of the three renovation systems.The essay presents a reference house of choice on which we apply the three systems and calculate the new U-values,consumption of energy and the investment costs. The new U-values the building is given is matched to the values ofrecommendation for passive houses. Our reference house is a two story apartment building, located in the village ofLammhult, with brick facades at the ends and plaster at the long sides.

Sveaverken is a company who manufactures products and equipment for the modern farm enterprise within grain, pork and horse businesses. A large share of Sveaverken's turnover depends on the role as a subcontractor for Delaval within the areas ventilation, manure handling and feeding systems. Sveaverken wants to investigate the possibility to increase sales by establishing new sales channels, for example e-commerce This thesis is an analysis of the Swedish farmers use of internet, attitudes towards e-commerce and Sveaverken's interest within this area. There is also a minor economic analysis of the cost of establishing the e-commerce site. The study focuses on farmers who are potential customers to Sveaverken within Sweden. To examine the farmers opinions about internet and e-commerce a questionnaire was developed and sent out in November 2006, to 500 farmers of which 45% answered. The results show that the average age of the farmers was 42,5 years.

This survey was made to investigate the possibility of using an alternative method of fencing inSwedish forestry. The most common way of fencing in Sweden today is made by a two meter highmetal net that is attached to turned impregnated poles. The fencing methods that have beeninvestigated is a fencing system made completely out of wood so called ?German wood fence?.Browsing of game in forest regeneration areas is often a big problem and some kind of protection ofthe plants is often necessary. There is several ways of building fences and the most common way isto use metal nets and impregnated poles, this leads to a problem when the fence has profiled itspurpose.

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.

This study aims to map the opinions and attitudes of lokal elected officials regarding corruption and corruption preventing measures. The study also attempt to determine weather opinions differ based on the interviewed party political affiliations. The study material of the thesis is therefore largely based on interviews with elected representatives from the municipalities; Älmhult, Lessebo and Tingsryd.  .

Tidigare studier av IT i undervisningen har fokuserat på kvantitativ inventering av hur många datorer skolor har och antalet lärare som utbildats för att använda IT i undervisningen. Jag vill ta reda på vilka möjligheter som finns, hur vi använder oss av dessa möjligheter i vår undervisning och varför vi väljer att använda eller inte använda dessa möjligheter. Eftersom IT ständigt utvecklas borde det vara logiskt att sättet vi använder oss av IT i undervisningen tar jämna steg med teknikens utveckling. Syftet är att undersöka hur gymnasielärare andvänder sig av IT i undervisningen, vilka förutsättningar som lärare upplever finns för IT i undervisningen, vilken kompetensutbildning lärarna genomgår eller erbjuds och hur lärare ser på användandet av IT i undervisningen. För insamlandet av primärdata har jag som metod valt att göra en elektronisk enkätundersökning i en av Googles applikationer, Google Drive.

The 1990s were one of the most profitable periods for European airline companies, mainly because of development of world economy and increasing globalisation trends. However, towards the end of the decade, a global economic downturn, high oil prices and new forms of competition turned the industry towards troubled times. The European air-travel industry had to face and accept the new airline business concept, called low-cost or no-frill airlines. In these conditions, traditional airlines had to rethink their strategies and question the old business model. As a response to the competition, European traditional full-service airlines formed alliances or networks to expand the route network and to increase efficiency.

The establishment of loan-based structures within a group of associated enterprises with the purpose of lowering the group's taxes by using deductible interest payments to transfer money has become increasingly popular in Sweden during the past few years. The legislator has therefore implemented new laws which restrict the amount of interest payments that are deductible within a group of associated enterprises. As a consequence the definition of associated enterprises has become of high importance. The definition has been criticized and is perceived by many as vague and difficult to interpret. The purpose of this thesis is to examine the definition of associated enterprises in Swedish tax law with the aim of clarifying its scope and meaning.

In a business environment where the stakeholder perspective is evolving and sustainable development is receiving increased attention, it is of importance for companies to adjust. The demand and pressure is exerted from several stakeholders who force companies to take action and live up to the expectations because if failing to do so, negative consequences will most likely be the case. The attention of this study is on ABB Power Products (ABB PP) and their environment and working environment risk management. The aim of this thesis is to identify and describe how perceived environmental risks are managed and what the incentives are to work proactively to minimize the risks. The incentives for a proactive risk management strategy are researched through both a strategic and operational perspective.

A study was carried in conjunction with the Orthodontic department at Halmstad General Hospital in Sweden to investigate the possibility of reducing cost and manufacture time of dental implant drill guides. The current system involves sending a digital image in STL format to the Materialise factory in Belgium where information of the position of dental implants is translated onto a moulded mouthpiece. Drill guides are placed in the mouth piece which is then returned to the surgeon. The mouthpiece complete with drill guides is then placed in the patients mouth and used as a guide for the implant drill holes. The cost of 10000 sek and a turnaround time of 2 weeks gave rise to the need for a faster and cheaper solution.