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505 Uppsatser om Smart meters - Sida 8 av 34
FRAMTAGNING AV INSTALLATIONSKIT FÖR PROJEKTILINMÄTNINGSYSTEM
The report presents a thesis carried out on behalf of the company SAAB Training and Simulation which is situated in Huskvarna. The authors of this report are going to graduate as mechanical engineers focusing on product development and design, and this thesis should reflect the knowledge obtained during the education. The assignment, given from the company was to develop a concept of a stand that will constitute as a part of a mobile system for target practice. The reader get to follow throughout the project and can hopefully learn from the smart solutions and approaches that have arisen during the process.Today SAAB doesn?t have a mobile application in their portfolio that utilizes the benefits of their sensor measuring system, also called the LOMAH-bar.
Skador på kvarvarande bestånd vid mekaniserad blädning
Kontinuitetsskog är ett brett begrepp som täcker in många olika skogstyper. Gemensamt för dessa skogstyper är att de ofta har eller kan utveckla höga naturvärden knutna till kontinuitet. Skogsstyrelsen har gjort en grov skattning av arealen kontinuitetsskog i Sverige och arealen bedöms vara mellan 1,7 och 1,8 miljoner hektar. Stora delar av denna areal är eller planeras att skyddas men en areal om 200 000 till 400 000 hektar kommer troligtvis inte att skyddas utan brukas i det moderna skogsbruket. Ett behov av utprövade metoder för bruk av kontinuitetsskogar har därför uppstått.
Utveckling av en ytmonterad fördelningsmätare som underlag för individuell debitering av vattenförbrukning i fastigheter
The master thesis, conducted at Metrima AB, concerns the development of a non-intrusivedistribution meter as a basis for individual tap water billing in apartments.The project is conducted in response to the market interest in individual tap water billing inapartments as an answer to environmental concerns regarding water consumption. Due to thehigh installation cost of traditional water meters, a new method of determining waterconsumption, without having to cut water pipes, is proposed.The proposed method distributes the total water consumption for an apartment complex toindividual apartments according to distribution meters, measuring water run-time, in eachapartment. The water run-time is estimated by measuring the water pipe?s outward vibrationsand temperature changes.A test environment was established and a prototype built, using a tilt- and vibration sensor forvibration sensing and a precision temperature sensor to measure temperature changes. As bothsensors work well in the test environment, further testing was done in 3 apartments for aduration of 5 days.
Konstruktion av tvåhjulig balanserande robot
This report discusses the development of an autonomous system that can travel a distance of atleast 30 meters on two wheels. The system, the robot, detects black lines and stops if one isdetected. A remote control can be used to start and stop the robot. The robot is constructed ofmainly steel with smaller, more detailed, parts in plastic. A significant amout of time has beenused to enable the robot to balance on its own.
Integrerad hästanläggning : ridhus/stall
Today there is an increasing market for businesses concerning horses, and since we are already running such establishments we sort of speak already have a finger in the pie. Due tothe increasing competition and demands, new and more practical constructions have become a necessity.
In doing this project I wanted to make a comparison between having a stable integrated with a manege and having both constructions kept separate. I wanted to compare different layout and make an estimate of costs to see which solution would be less expensive and better with regard to working environment. I will further also deal with different ventilation-systems andlight transmissions.
Skötsel av älgskadade bestånd :
Sweden has today the highest moose (Alces alces) population in the world. The population has been very high since the late seventies and in the beginning of the eighties there was a big ?moose explosion?. The main food source for moose during the winter is young pine (Pinus sylvestris) and birch (Betula spp.). The high moose population has therefore lead to high damage on pine forests over big areas.
Vart är naturen i skärgården på väg? : skogshistoria på Ängsön-Marskär i Stockholms södra skärgård
The following thesis is a study of the forest history on the island of Ängsön-Marskär concentrating on the last three hundred years. The island is located in the administrative province of Stockholm, the local community of Haninge and it is situated approximately seven kilometres east of the island Ornö in the south of the Stockholm archipelago. The questions this thesis attempts to answer are: How where the natural resources on Ängsön-Marskär used through the centuries? How has the state of the forests developed since the 16th century? How will the nature develop onwards? The thesis is based on archival sources for Ängsön-Marskär and the surrounding areas. A field study was conducted where the entire island was investigated using an objective forest inventory method.
The first map material existing over Ängsön-Marskär is from the year 1711.
Förstudie och utformning av grönrum och terrass, Tillbyggnad till äldreboende på Forellen i Partille
Partille municipality is planning an extension of the building Forellen. Green environments in health care have been shown to improve the health of patients, especially in elderly care. This report addresses the possibility of using the leftover space in close connection to a dementia and short-term accommodation to a winter garden and a terrace. The report also analyzes the impact of these green spaces on the residents.The purpose is to find alternative answers on the issue through the study of nursing homes and green spaces, and that these may be useful for Partille municipality and inspiration for future projects. The goal is to get conclusions in to a report, drawings, and an oral presentation.The results show that the design of environments can affect human well-being and also be healing both mentally and physically.
Vindskador vid stickväg i 1:a och 2:a gallring i Boxholm, Östergötland : i stormen Pers fotspår
Wind damages next to strip roads in 1st and 2nd thinning in Boxholm, Östergötland
Anneli Fransson, SLU, inst f sydsvensk skogsvetenskap, Examensarbete no 108
Wind damage is something we are all familiar with since the storms Gudrun (2005) and Per (2007). Research about strip roads and wind damage is very limited. It is commonly known that the trees next to the strip roads more often fall whit heavy winds, and the purpose of this thesis was to verify this statement. Data was collected from first- and second thinnings at Boxholms Skogar AB, Östergötland. In first thinnings data was collected from both spruce and pine stands and second thinnings only data from spruce stands was collected.
Repeterbarheten hos von Graefes metod för forimätning
En vanlig undersökning som optiker använder för att mäta forier är von Graefes metod med kontinuerlig presentation.Syfte: Syftet med studien var att mäta repeterbarheten på denna metod för att kunna dra en slutsats angående hur optiker bör utföra mätningarna samt hur många mätningar som rimligtvis bör utföras för att ett pålitligt mätresultat ska fås. Syftet var även att kontrollera storleken på forierna samt refraktionens påverkan på repeterbarheten.Metod: Studien är baserad på 32 personer i åldrarna 19 till 32år. Undersökningen började med en anamnes, kontroll av samsyn samt en synundersökning. Efter det mättes horisontal- samt vertikalfori på sex meters håll respektive 0,4 meters håll. Varje fori mättes tre gånger för att repeterbarheten skulle kunna undersökas.
Autonom UAV
In Abisko National Park there are a numberof weather stations. To be able toretrieve the data from the nodes in thefuture a Quadrocopter-prototype has beendeveloped during this master thesisproject as a first step. A quadrocopter isa helicopter with four rotors placed in across formation. The quadrocopter cannavigate autonomous between different GPSpositionsthat are updated during flighttrough Xbee-modules. All levels fromsources code, design of the electronics todevelopment of the chassis was performedduring the project.
Förslag till bebyggelse och park i kvarteret Seminariet i Uppsala
In the urban planning debate of today, two strategies for city development stand out as each other's opposites, urban sprawl and smart growth. This thesis concerns a development project of the latter kind and aims to give an alternative proposal to new buildings and a park in a Swedish city block. The term sprawl is used for new developments on virgin soil on the outskirts of cities leading to a city spreading, while smart growth stand for increased city density through development on re-used land within the city boundaries. The latter are often seen as more sustainable in many levels and are also shown to have positive effects on a number of city functions. At the same time smart growth has negative consequences on other aspects of the city such as public open spaces.
Interaktiva skrivtavlor : Hur kan de användas inom gymnasiematematiken?
Syftet med den här studien var att ta reda på hur lärare och elever ställer sig till användandet av de interaktiva skrivtavlorna inom matematiken. Studien bygger på flera olika metoder då detta är en fallstudie. I undersökningen framkom det att elever och lärare är positivt inställda till de interaktiva skrivtavlorna. Det framkom även att lärarna inte använder den interaktiva skrivtavlan alls eller att de använder den som en filmduk..
Koldioxidavgång vid ekologisk odling på organogen jord
The background of this work is the media discussion about the effect of cultivation on peatsoils on greenhouse gas emissions. It has been argued that row sown and intensivelycultivated crops such as carrots are more likely to emit carbon dioxide than for example grassleys. The association KRAV (an association promoting organic farming) shall, from this yearadapt their environmental policy to be more climate smart and have asked the question if thecultivation of some crops is more climate smart than others? Carbon dioxide emissions fromsoil are due to degradation of organic material and the rate is controlled by microbial activity.The microbial activity is determined by a variety of factors such as temperature, soil organicmatter quality and water content. I have measured the carbon dioxide emission from fourdifferent crops at two different farms.
Mobil kommunikation och högre tillgänglighet vid längre elavbrott : Exemplet stormen Dagmar och 4G-kommunikation inom smarta elnät
To be able to secure a safe and reliable power supply is becoming increasingly important since society depends on services and functions that need continuous power supply. The delivery rate in Swedish power supply is 99.98 % which insists on a high availability. During the past decade several storms has passed Sweden which resulted in large amount of tree felling leading to extended power outages. During these storms many socially critical activities, such as electric utility company Fortum, experienced disruption in mobile communication which affected the crisis management. This paper has investigated Swedish mobile operators? crisis management at Hi3G, Tele2 and TeliaSonera with a case study of the storm Dagmar that hit Sweden during December in 2011.