The thesis investigates if it is possible to replace several pumpimpellers with one controllable pumpimpeller, with a economical and a manufacturing analisys aspect. The studied pumpimpeller is mounted on a midrange wastewaterpump, N3127MT.In the thesis a contemplated manufacturing process is evaluated for a concept that are supposed to act as a controllable pumpimpeller. The pumpimpeller are studied in a manufacturing and flow matter and are presented in the thesis.The manufacturing cost is also estimated, and this has been compared to the storage cost and other costs that the existing pumpimpeller generates.The thesis also shows that the concept has minor losses in cutting quality aswell as the effiency comparing to the existing pumpimpeller.The concept also raises the manufacturing cost and this increasing cost makes the presented concept to expensive to carry through.An investigation of the costs that the existing pumpimpeller produces has also been done, and this shows that there is not that much expenses to earn regarding to for example the storage cost. The storage cost includes information from Flygt?s central storagecenter in Lindas, Sweden and Metz, France, and also an inventory about the pumpimpellers located at Flygt?s different distributors worldwide.The thesis shows that a controllable pumpimpeller will generally increase the cost for the pumpimpeller and the performance of the pumpimpeller will decrease..

The reason why I choose the subject ?Warts on teats of Dairy Cows? was because the herd I work with has big problems with skin-complaint on teats and udder. So I found it interesting to try to find the reason why the cows look like they do and even to find a way to relieve the trouble. The examine work included both a literature research, an experimental test, concerning a comparison of different teat sprays and also an inquiry-research about the occurrence of warts in practical herds in order to collect as much facts as possible. Three companies, selling different types of teat disinfectants, were willing to sponsor the teat dipping experiment. The aim of the experiment was to see if any special disinfectant had more pronounced healing effects on teat warts. The date for the experiment was 18th December 2004 to 22nd January 2005, which was going to be 5 weeks.The experiment was carried out in the herd of Ola and Eskil Carlsson in Fjärlöv, Hässleholm. The three compared teat spray chemicals were; Nova Viri Sun, Nardosept, and BlockadeTM. These chemicals were compared to one control group, which teats were treated with the ordinary chemical normally used in the herd, i.e.

The purpose of this study is to give an overview about iron fortification from the view of technique and health. Example of a technical aspect is different iron compounds which are used for fortification like ferrous sulfate, ferrous fumarate and elemental iron. In the aspect of health the big question is if iron fortification can improve the health in reducing the prevalence of anemia. The study focuses on flour fortification with iron in Egypt and Iran and involves a literature study with scientific articles. Also information from WHO (World Health Organization), FAO (Food and Agriculture Organization) and FFI (Flour Fortification Initiative) are used.Fortification means an intentionally increasing of the content of micronutrient in foods with the aim to improve the food quality and deliver a nutritional benefit to the consumer.

This thesis is   focused on identifying and documenting all   electrical equipment, such as devices, power lines / cables, and connectors in the facility and also on presenting a brief   technical description and information of the systems around the reactors.   Furthermore there will be a brief description of LabVIEW - which is a   graphical programming language- and which devices / elements   are programmed. For further notification, I am not   responsible for the programming of the devices in LabVIEW   which I have only used as a tool in my work. The plant   for production of biogas consists of four reactors   of which the third reactor (Lakbädden)   is connected to another reactor (UASB)   where they cooperate with each other.   The reactors are used for producing   biogas in the form of methane gas.The reactors I and II are   connected to, various electrical devices as, flow meters, temperature   sensors, frequency converter and   more.

Dampness in the indoor environment have been a major issue of discussion the last decades since more and more people complain about their indoor environment. In the present situation there are difficulties to find what causes people?s discomfort in a damp environment even though there is a strong connection between dampness and human health.The aim of the thesis was to contribute to the work done today to achieve a better indoor environment in damp buildings. The purpose of the work was to evaluate whether the measures issued for dampness in the indoor environment contributes to the improvement of health and environment for those who are living or working in that space. Through a literature review, interview and survey the following three questions were answered to achieve the aim and purpose:How are people affected by the indoor environment in damp buildings?Which are the measures issued to prevent dampness in the indoor environment?Do these interventions contribute to a better indoor environment?How people are affected by the indoor environment in damp buildings and how these problems are prevented were the foundation for the continued work with the survey.

Stormwater from trafficked areas often contains high pollution levels. In traditional stormwater management design, stormwater is first transported away through piped networks, and then in most cases passes through oil separators before finally reaching the recipients. While this traditional method removes certain pollutants from the stormwater, it does not reduce the total flow, as in the case of ecological stormwater management. In the ecological method the stormwater is not simply transported away, but is recirculated through infiltration, percolation, and detention. The aim of this study is to investigate possible advantages of ecological management designs, in contrast to traditional management.

Arbetets syfte är att undersöka hur användandet av dynamisk svårighet i jämförelse mot användningen av statiska svårighetsgrader påverkar ett casualspels återspelningsvärde och huruvida spelare upplever inlärningskurvan annorlunda. De teorier som ligger grund för arbetet fokuserar kring två områden, där det ena är hur dynamisk svårighet utformas på bästa sätt och vilka fördelar det skulle kunna bidra med. Det andra kretsar kring casualspel och varför casualspel har haft den framgång och vad det är som tilltalar spelare att spela dem samt vad det är som ger spel återspelningsvärde och väl utformade inlärningskurvor. För att utföra undersökningen har två versioner av ett casualspel, vars spelmekanik fokuserar runt skrivhastighet på tangentbord, utvecklats där den ena använder sig av dynamisk svårighet medan den andra använder sig av tre statiska svårighetsgrader. Resultatet från undersökningen visar inte på ett direkt samband att dynamisk svårighet skulle ge ett spel högre återspelningsvärde men att några av de problem som uppstår vid statiska svårighetsgrader kan lösas.

The purpose of this project was to investigate if retention of polar compounds that are given to treat tuberculosis, diabetes, inflammatory bowel disease and childhood leukemia could be obtained with HILIC separation. By varying different parameters for different types of columns the compounds were analyzed with the aim of finding guidelines for future method optimizations. To perform these analyzes three different columns were tested ? ZIC-HILIC (silica-based with zwitterions), ZIC-pHILIC (polymer-based with zwitterions) and XBridge Amide (amide functions). The results were evaluated with selected quality measures.

Social media, with its immense and continuous flow of information, has in recent years growntremendously in terms of users and content. This increase has led companies and organizations keen to be seen within these channels of communication, but do they always have a clear idea of how andwhy, and are they aware of the risks that are associated with it? Current research on social media is somewhat divided in two. The debate concerns, among other things, what value the information on social media has, and whether the media is really a good communication channel or not. This raises several questions, for example can a company really afford to remain outside of social media with allthe information it generates? This research aims at answering these questions in order to further understand how organizations discuss social media presence and strategies.

In this paper we have looked closer on a car-retailer in the middle of Sweden. We have chosen to dig deeper in the different problems that can occur, related to the supply. Soon we realized that that the problems weren?t related to stock management. Through studying the whole of the company, we have identified reasons to why details aren?t in the stock.

Syftet med uppsatsen är att presentera utvalda teoretiska modeller i litteratur inom Upplevelseproduktion, samt att genom en produktion testa huruvida dessa teorier är relevanta. Syftet är även att undersöka karaktären hos gästens eventuella upplevelse vid produktionen för att avgöra om de teoretiska modellerna även gjort upplevelsen meningsfull för gästen. Med ett hermeneutiskt förhållningssätt och en deduktiv ansats har vi med hjälp av ett antal teoretiska modeller först planerat och sedan genomfört en reell produktion vid namn Rock n? roll Piteå och med det som grund gjort en kvalitativ intervjustudie baserad på tre fokusgrupper. Endast individen kan avgöra om en upplevelse varit meningsfull, då detta är subjektivt, men med stöd i det resultat fokusgruppintervjuerna visat kan vi konstatera att det för en stor del av informanterna varit en meningsfull upplevelse.

The companies of today figures on a hardly competitive market. This makes it necessary for the company to find new way to create competition advantages. Since it is no longer enough to compete with the technical quality of the product the companies are forced to also enhance the functional quality. To accomplish this it becomes necessary for producing companies to be customer oriented. A customer oriented company culture can be reached with the help of internal marketing in which different activities work to inform and teach the employees about the company strategy and also about their own role as part-time marketers.This thesis examines Electrolux, a company which is currently striving to develop a customer oriented company culture.

It is important that the current urine separating systems are evaluated to allow improvements to be made and consequently increase their future propagation. In order to increase the knowledge about urine separating systems this study was made. It included, among other things, measurements of amounts of urine as well as of the composition of urine collected at Nytorgsgatan 4 in the city of Hallsberg. The study was increased after an inquiry that also included the district of Understenshöjden in the city of Stockholm. In the inquiry, the users were asked questions about odour, cleaning of toilets and occurrence of blockages in the urine water locks etc.

The last few years a lot of media air time has been devoted to training, sports, health and weightloss on a more personal level then before. The new media arena is beeing used at its´ maximumto broadcast wievs on how we should eat, look, exercise and live. This thesis is trying to makebetter understanding on what people in general think is important when it comes to physicaltraining and motivation with the aid of digital media and IT systems. The thesis describes aworkshop that was conducted within the frames of Participatory Design and the outcome of thatworkshop. The workshop was conducted with a group of lead users (in this case instructors at avery large fitness center in Umeå, Sweden) and the main question was ?How can IT be used toachive a positive effect on physical exercise if motivation is the focus??.

An overwhelming majority of all male piglets are castrated without anaesthesia when they are very young. In Sweden this means that approximately one and a half million piglets are castrated every year. The reason the piglets are castrated is the strong and unpleasant smell and taste, the ?boar taint? that the meat from intact boars sometimes exhibits. Boar taint is chiefly cause by androstenone and skatole, two compounds that are mostly produced by sexually mature boars and are accumulated in the subcutaneous fat.