In this thesis a possible cost effective runner change of some of the units in the hydroelectric power station Olidan is investigated. The possibility to drive a unit at the same efficiency point through a change of the turbine shaft speed and the rate of discharge is tested. Furthermore the theories behind model testing, determination of efficiency increase from model to prototype and efficiency measurements shall be discussed and analyzed with Olidan as a starting point.A predicted curve has been built on information from model tests and field measurements on the existing runners and runner data from the test of the new model. The predicted curve shows the difference in efficiency between an existing runner and a modern one. It is the difference in efficiency that is used in the calculations that are to show whether changing to a pair of new runners will be cost effective or not.

One of today problem at IVT industries would be assembly of insulation on water cisterns. The element of assembly insulation on the cistern gets too elevated; hence one has to climb onto the stand the cistern is assembly on. This will increase the risk of work related injuries when there is a risk of falling down. It?s also rather strenuous on shoulders due to work with your arms high above your head.

AbstractManagement is a field that started getting attention in the beginning of the 20th century by Frederick Taylor. His publication is called the Principles of Scientific Management and is based on the principles of using scientific methods to find the best way of conducting each operation within a production facility. Many of Taylor?s principles may appear obsolete today but the matter of an effective material flow is still highly current. Efficiency is the relationship between the input into an operation and its result.

Food waste from grocery stores - An analysis of municipal management inSweden and a detailed study of the situation in Umeå municipalityThe objective of this thesis was to analyze the municipal management of food waste fromgrocery stores in Sweden in general and in Umeå municipality in particular. Furthermore theobjective was to account for the different waste treatment methods that can be used and toevaluate them from an environmental perspective. In order to analyze the municipalmanagement a survey was sent to all of the municipalities/municipal waste companies inSweden. A general comparison of treatment methods was carried out on the basis of ascientific review and a system analysis was performed in order to compare three differenttreatment alternatives for the food waste generated in grocery stores in Umeå. The surveyshowed that the legal definition of food waste from grocery stores is unclear and variesbetween municipalities.

AbstractThis degree thesis was made in cooperation with Chematur Engineering in Karlskoga.Many of the environmental issues of today are a result of the motor traffic. Consumption of fossil fuels harms our environmental through formation of carbon dioxide and other greenhouse gases. To get under control with our environmental issues it?s important to find substitutes for oil that are both cheap and environmentally friendly. Ethanol has a long history as a motor fuel and is both enviromentally friendly has a high efficiency.According to the EU commissions directives for motor fuels, 5, 75 % of all the fuels in Sweden should be renewable in 2010.

Abstract:Ambulance nurses have in their everyday work a varied work environment, the pace of work can quickly shift from being calm and structured to be a severe acute situation.Objective: The aim of the study was to describe how professional nurses in the ambulance operations experience their physical and mental work environment in daily practice.Method: A qualitative interview study with semi structured questions was used. The study group consisted of two women and three men, ages between 27?42 years. The study was carried out on an ambulance station in central Sweden. Based on collected data, a qualitativecontent analysis was performed that resulted in three categories.Results: The result showed that the ambulance nurses regarded that it was a lot of heavy lifting.

The Swedish contemporary poet Ulf Karl Olov Nilsson (UKON) creates his poems by recycling and manipulating existing material. Though the overall opinion of his work has been positive, the idea that experimental poetry focus shape on the expense of content has led critics to either interpret the nonsensical and absurd aspects of UKON?s poetics as a consequence of the technical methods he uses to create his poetry, or to look beyond the nonsensical and absurd aspects to focus the fact that the poems creates meaning at all. The poems of UKON?s sixth collection of poems, Block (2005), differ from each other in many ways: some poems are lists and other revolves around a person ? their content and construction vary and they can hardly be read as an expression of one persons thought.

The purpose of this project was to evaluate how energy efficiently some of JM?s residential buildings can become in standard production. What kind of measures are needed to achieve the level of energy demand that is included in BBR12 (Boverkets Byggregler)? What measures are needed for achieving a lower demand so that the buildings could be classified as passive houses? The investigation has included a single family house and two different types of apartment blocks.The simulation programs Enorm and VIP+ have been used to calculate the energy demand of the buildings. The results from the programs have been compared with the measured energy demand for the three buildings.

This master thesis was made to validate hydropower models of a turbine governor,Kaplan turbine and a Francis turbine in the power system simulator ARISTO atSvenska Kraftnät. The validation was made in three steps. The first step was to makesure the models was implement correctly in the simulator. The second was tocompare the simulation results from the Kaplan turbine model to data from a realhydropower plant. The comparison was made to see how the models could generatesimulation result that was similar to the reference power station.

Milosevic, S. 2014. Buller ? Hur planers en bullerfri stad?. Kulturgeografiska institutionen, Uppsatser, Uppsala universitet. This essay is about noise pollution caused by urbanization.

The purpose of this study is to see how five different local radio stations, P4, within the public service organization Sveriges Radio communicate with their listeners through Facebook and how they differ from each other.We have also studied how the radio stations follow Sveriges Radios? policies for socialmedia usage and how the communication through Facebook can benefit thetraditional radio. Our study contains a combination of quantitative content analysis with qualitative interviews. We studied the five stations? Facebook pages from for the quantitative content analysis and interviewed those who were responsible for the social media pages, such as web editors and channel managers.Our conclusions are that the P4-stations communicate through Facebook to create a dialogue with the listeners and to reach two-way communication; the stations published mostly written updates that encouraged interactivity.

Syfte och frågeställningStudiens syfte är att, utifrån NyTidstestet, undersöka elevers grovmotoriska grundfärdigheter i årskurs 6 i Stockholmsområdet.Utifrån detta syfte har vi valt att använda oss av följande frågeställning:- Hur ser de grovmotoriska färdigheterna ut för elever i årskurs 6, när de bedöms enligt NyTidstestet?- Vilka skillnader framkommer, hos eleverna, mellan de undersökta stationerna?MetodFrågeställningen har besvarats genom en observationsstudie på sjätteklassare i Stockholmsområdet, sammanlagt 113 elever. Varje elev har observerats utifrån NyTidstestets observationsschema, där eleverna vid sju stationer bedömts enligt fyra kriterier: "mycket tillfredställande", "tillfredställande", "små brister" och "stora brister". Varje station innehåller en eller två grovmotoriska grundformer.ResultatDe undersökta elevernas grovmotoriska färdigheter är bristande. Hela 48 procent av övningarna kunde inte utföras på ett tillfredställande eller mycket tillfredställande sätt.SlutsatsUndersökningen visar att eleverna får en allt sämre grovmotorik och i och med den nya läroplanen (Lgr 11) tror vi inte att elevernas grovmotoriska färdigheter kommer att bli bättre.

Bakgrund Dagens samhälle ställer allt större krav på den enskilde individen att bidra till ett hållbart samhälle, där återvinning av förbrukade material är en del. Samtidigt talas om tillgänglighet för alla individer i samhället och lika rättigheter.Syfte Studien syftar till att undersöka hur förutsättningarna i miljön ser ut vid återvinnings-/miljöstationer för rullstolsburna i Örebro Kommun.Undersökningsmetod En observationsstudie av miljöfaktorer har gjorts utifrån egen utarbetad checklista med grund i bland annat bedömningsinstrumentet Housing Enabler samt rekommenderade mått från svensk lagstiftning angående byggnormer för tillgänglighet. Urvalet skedde genom bekvämlighetsurval.Resultat Observationerna av återvinnings-/miljöstationerna indelades i åtta kategorier, utifrån typ av station. De hinder som observerades var för höga/låga kärl, otillräckligt manöverutrymme, hindrande trösklar/trottoarkanter, tunga dörrar utan automatik och tunga lock/luckor på återvinningskärlen.Slutsats Samtliga observerade återvinnings-/miljöstationer innefattade miljöhinder för rullstolsburna vilket påverkar möjligheten till självständig återvinning. .

Nowadays Wireless LAN is playing a more and more important role in network systems. After 1999, in which the IEEE organization published its Wireless Local Network standard 802.11[1], many people saw the advantages of the standard but also the lack of support for multimedia streaming. A lot of research work has been done on the proposed IEEE 802.11e standard draft during the past 4 years. It is supposed to be able to fully support Quality of Service. The final version will be published early in 2004.

This report describes the development and implementation of a system for transmitting digital information at high speeds from a miniaturized submersible developed by the Ångström Space Technology Centre at Uppsala University. For instance, the vehicle shall transmit image data ? even stream live video - through an optical fibre to a monitor in a ground station. Hence, the system shall be used both to convert the image data to make it transmittable, and to recreate it at the receiver.The work includes a pre-study of the programming language and the technology used. A concept for the solution is presented together with main components later broken down into internal functions.