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554 Uppsatser om Weather station - Sida 26 av 37

En intuitiv & lättillgänglig flyktmask för gruvmiljö

I have always lived around mines and around people work­ing with mines. They are a natural part of my life and, inev­itably, a great interest of mine. When time came to make a decision for a degree project, focusing on the mine context felt as natural as breathing.In LKABs underground mines, safety in fire accidents is a great priority. Of outmost importance for the escape is to have a personal gas filter for filtration of smoke and/or gas. My design project resulted in a concept which is aimed at shortening the user journey from the start of the accident until the user has applied the personal safety solution and is ready to escape.Throughout the project I?ve been working with a context which is heavily regulated, and all problems are serious, important ones.

Analys och dimensionering av robusta kilspårsförband

This master thesis comprises analysis and dimensioning of a keyed joint between a generator axis and a hub with aid from the FEM-software ANSYS Workbench 13.0.The generator axis is a part of a hydroelectric power station that generates electricity with a reactions turbine, a Kaplan turbine. The existing keyway consists of one parallel key with the width 90 mm and height 45 mm. Due to a planned increase of the power of the generated power with 32 % a design study was needed to see if the keyed joint would be suitable for the extra force. Because of the fact that the axis diameter is bigger than the standards covers/recommends a the keyway had to be re-dimensioned. In an earlier assignment from Skellefteå Kraft AB to Sweco Energuide the keyway was planned to be properly dimensioned, but no final solution was approved.During this master thesis a number of different numerical tests were made.

Kul, det regnar! : en kvalitativ undersökning om hur förskolegårdar är anpassade för och används i nederbörd

Bakgrund Idag spenderar barn mycket tid inomhus eller på schemalagda aktiviteter. I och med barns rättighet till ett hälsosamt liv har förskolan i uppgift att se till att barn får vara ute och där också få en positiv upplevelse av utomhusmiljön så att barnen som vuxna får en bra relation till naturen.Teori Studien utgår från teorier som åskådliggör positiva effekter av utomhusvistelse för barn. Lek i utomhusmiljö bidrar i hög grad till att utveckla motoriska och kognitiva färdigheter och väderväxlingar berikar barnens stimulans av olika sinnen. Teorier visar även att vatten är en stor källa till inspiration och experimentslust.Syfte Syftet är att undersöka hur tre förskolor i Stockholm använder sin förskolegård i nederbörd samt att studera hur redskap på gården är utformade för att kunna användas i nederbörd på hösten. Meningen är att studien ska ge inspiration till andra förskolor att se möjligheter i dagar med nederbörd.Metod Arbetet utgår från observationer på förskolor samt kvalitativa interjuver med en pedagog från varje förskola.Resultat Resultatet visar att redskap finns på alla gårdar men att de överlag inte är utformade speciellt för lek i nederbörd.

Undersökning av energiförbrukning och konceptutveckling av mer energisnåla frukostmaskiner

This master thesis comprises analysis and dimensioning of a keyed joint between a generator axis and a hub with aid from the FEM-software ANSYS Workbench 13.0.The generator axis is a part of a hydroelectric power station that generates electricity with a reactions turbine, a Kaplan turbine. The existing keyway consists of one parallel key with the width 90 mm and height 45 mm. Due to a planned increase of the power of the generated power with 32 % a design study was needed to see if the keyed joint would be suitable for the extra force. Because of the fact that the axis diameter is bigger than the standards covers/recommends a the keyway had to be re-dimensioned. In an earlier assignment from Skellefteå Kraft AB to Sweco Energuide the keyway was planned to be properly dimensioned, but no final solution was approved.During this master thesis a number of different numerical tests were made.

Development of green space in Dar es Salaam, Tanzania

In Dar es Salaam, as in many cities in developing countries, green areas are decreasing due to the fact that the growth of buildings, infrastructure and services has become a priority. As the population increases more buildings and infrastructure are needed and much of the building activity takes the form of uncontrolled settlements, which encroaches the public green space. Dar es Salaam has approximately three million inhabitants, of which about 70 percent are living in informal settlements. The aim with this study is to make a design proposal for a park and recreation area where the Msimbazi river basin in the centre of Dar es Salaam is today. The basin consist of a few playing fields, footpaths and some urban farming, but apart from this it mostly consists of unused grasslands, swamps and forests. Because it is an unsafe place and badly connected to the rest of the city infrastructure, it has become a barrier. The annual flood combined with the constant still shallow water creates a good breading ground for malaria mosquitoes.

Beräkning av värmeförluster och energieffektivisering av elbussar

The ?civilized? world is in need of fossil fuel in order to function. Hybricon AB is a company in Umeå that is developing a technology that hopefully can reduce parts of this need. They are currently testing their two electrical busses (with Hybrid backup) in city traffic on the roads of Umeå in cooperation with the county of Umeå.                               The busses are originally diesel-busses, but the diesel motor has been replaced with two electrical hub-motors with a power of 145 kW each that are powered by batteries.The batteries are charged at the end station after each route. In case the batteries should run low on capacity during driving, they can be recharged by the so called genset.

Passage efficiency and migration behavior for adult Atlantic salmon at a Half-Ice Harbor fish ladder

Due to exploitation of the world?s rivers, the upstream migration of anadromous species is frequently delayed or even prevented. To mitigate these problems and allow fish to migrate past obstacles, structures such as fish ladders have been developed. However, recent studies show that many of the present fish passage facilities are deficient. Monitoring and evaluation of passage facilities is therefore crucial to enable necessary adjustments.

Introduktion av förstakalvare i AMS : en enkätstudie

Habituation to an automatic milking system (AMS) for cows in their first lactation differs from habituation to other milking systems. In AMS the cows are supposed to visit the milking station (MS) voluntarily. The milking takes place individually during the whole day, except when the milking system is cleaned. Milking is carried out without any human survey. The aim of the study was to describe the cow?s introduction in AMS in their first lactation.

Beslut om betydande miljöpåverkan för järnvägsprojekt : beslutsmotiveringar, åtgärder och regionala skillnader

This thesis examines the reasons to why railway projects conducted by Banverket (Swedish National Rail Administration) could be expected to cause significant effects on the environment, on which grounds the County Administrative Board and Swedish National Rail Administration base their decisions/assumptions and highlight regional differences between the different Swedish national rail administrations regions. Total 24 railway projects, conducted or being conducted, during the time period 2001 - January 2010 have been analyzed and studied. These projects represent eight different measures/activities which are dispersed throughout all five of the Swedish National Rail Administration´s different regions. Swedish legislations demands that the planner of a new railway project shall first conduct a pre-study and then conduct a public consultation which provides the participants an opportunity to provide input. The County Administrative Board shall then decide if the project could cause significant effects on the environment.

Skillnader i självvärdering mellan kvinnliga och manliga tandläkarstudenter vid en ?Objective Structured Clinical Examination? (OSCE)

Syftet med denna studie var att jämföra tandläkarstudenters reella resultat på en Objective Structured Clinical Examination (OSCE) med deras egenskattade resultat. Dessa resultat jämfördes sedan med avseende på genus. Ett flertal studier finns publicerade där man har beskrivit skillnader i självvärdering mellan kvinnor och män på teoretiska examinationer. Dock saknas kunskap där man granskar dessa skillnader vid examination av kliniska moment. Vid teoretiska prov har man funnit att män har en tendens att värdera sina prestationer högre än vad kvinnor gör.

Hur man blåser liv i en slumrande organisation : En studie om organisationsutveckling och hälsopromotivt arbete

This is an essay about health promotion and organisation development. The problem concerning all health issues that can be tied to work related illnesses has long been a problem in Sweden. For example did this problem alone cost the Swedish government 25 million crones a day between the years 2000-2001. This is a major issue and there is lots of money to save in this area. This is why we wanted to research how to promote health by changing the structure of the selected company.

Att lokalisera kompetenser på flexkontoret :  

To find competencies on a workplace with flex office structure.Companies today, 2012 are facing new opportunities and challenges. Information technology develops, competition is bigger today than ever, increased environmental requirements will be added and new patterns of life and values are occurring. This means that people who work in offices feel strong pressure of conversion, which is something that people experience differently. Therefore it is essential how the working environment is designed in an office. Working in an office means a lot of information processing and we can see large changes taking place.

Hur nya företag skapar konkurrensfördelar på marknaden för fordonsbesiktning

The Swedish market for vehicle inspection is re-regulated since June 2010. More than four years after the re-regulation there are eight companies in the market. Two of these companies are a result of the former monopolist's owners divided the business among themselves. The remaining six companies have entered the market through acquisitions or by building up their business from scratch, these are known as new entrants in the study. The competition has developed slowly and the former monopolist still has the highest market share.

Planering som möjlighet för social hållbarhet? : En fallstudie om Malmö stad och hur social hållbarhet tillämpas i fysisk planering

Detta arbete behandlar hur synen på vad social hållbarhet är och vad det uttrycks innefatta, men även hur begreppet används i praktiken. Detta görs med utgångspunkt i en teoretisk diskussion om vad hållbarhetsbegreppet är, vilket sammanhang begreppet myntats i och hur detta präglar dess användning och kraft. Liknande redogörelse görs därefter angående begreppet social hållbarhet. För att få svar på vad begreppet social hållbarhet betyder och innebär i en planeringskontext studeras därefter rådande forskning som länkar samman den fysiska planeringen med social hållbarhet. Detta material ligger sedan till grund för utredningen av och jämförelse med hur begreppet används i en praktisk planeringskontext.

Design av schemaläggningssystemet till räddningstjänsten : en metodisk process för att uppnå användbarhet

Detta examensarbete beskriver processen för framtagandet av en ny design för det befintliga schemaläggningssystemet för räddningstjänsten. Ett av problemen med att schemalägga för personalen inom räddningstjänsten är att det är flera faktorer som måste tas hänsyn till. Några av dessa faktorer är vilken station de arbetar på, personalens kompetens, att det ska finnas personal på stationerna och arbetsroller. Syftet med examensarbetet var att skapa en ny design som uppskattas av de som arbetar med systemet. För att uppnå detta var de som schemalägger med och påverkade designen av systemet tidigt i designprocessen.Detta examensarbete innefattar en litteraturstudie, en förstudie, en intervjustudie, en fokusgrupp och två användartester.

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