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946 Uppsatser om Grid technique - Sida 23 av 64
Värmepumpars inverkan på elkvaliten
Modern technology and fast development of heat pumps, the hunt for savings in energy consumption and the strive for environmentally friendly energy sources, convenience, and financial profit, have made heat pumps a reasonable alternative for the heating of houses.When the heat pump starts it will consume a considerable amount of current, which may result in a short-lived voltage-drop if the power grid is weak compared to the start-up current.The company Fortum Distribution which owns and administrates electrical network is interested in an investigation that deals with heat pumps affect on the quality of electricity.The purpose of this investigation is to study fast electrical fluctuations (flicker) as a result of start-up currents for single as well as multiple heat pumps on the same electrical station and from this evaluate whether there will be any problems installing heat pumps..
Objektiv utvärdering av hälta under ryttare
Background: The most common reason for veterinary care in horses is lameness. Lameness in riding horses is often difficult to evaluate and in many cases may require riding to come to a diagnosis. Evaluation of lameness has proven to be very subjective and depends on the examiner. There is a need to evaluate ridden horses in an objective way.
Smärta och extas : En studie om det abjekta och groteska i Nathalie Djurbergs verk
This essay examines the relationships between the different elements in Lisa Jonasson?s collage Existentiell Progg #6 and her very detailed technique. The essay has as its aims to understand and analyze both the details and the wholeness of the artwork and to try to put the collage in an art historical context. The thesis finds that Existentiell Progg #6 has a connection to the imagery of Africa and other collage artist such as Hannah Höch and Nancy Spero, which also gives the paper a perspective of feminism in the arts. The paper continues to create an understanding for the collage work by putting it in to Theodor Adorno?s theories about nature, the human being and the animal kingdom.
Nya renings- och uppgraderingstekniker för biogas
Biogas is a renewable energy source that is produced by anaerobic digestion of organic mate-rial. In Sweden, biogas predominately comes from sewage water sludge and landfills or from organic waste of households and industries. Small scale digestion plants at farms are espe-cially expected to contribute to increased biogas production in the future. Biogas can be ob-tained directly in it?s raw form and used as fuel in a combustion chamber.
MoPho -enkla lösningar för SMS och MMS
Our project is divided into two parts, one production and written report. The
main focus was the production part, were we used PHP to create simple solution
for handling SMS and MMS with direct communication with the mobile operator
server. We communicate with sockets and can handle CIMD2 and MM7 protocol. To
get our components easy to use we have created two classes to handle SMS and
MMS. To demonstrate our technical platform we created a website were you can
create an account.
Bibliotekariers syn på Open access : Enkätundersökning bland bibliotek med inriktning teknik, naturvetenskap, medicin och farmaci
Open access to scientific literature on Internet is a concept which is supposed to change librarians' work. The aim of the thesis was to examine librarians' perception of Open access. A questionnaire survey was conducted among librarians at libraries with specialisation in technique, natural sciences, medicine and pharmacy in Sweden. Even though Open access can be regarded as an alarming for librarians' work, the results of the survey showed that the future of the librarians' profession can be positive if they flexibly adopt their work routines according to changes in publication forms and library users' needs..
Från statisk till följsam webbdesign : Den nya webbteknikens väg till företagen
The IT industry is constantly evolving and requires everyone working with website development to be updated on the latest methods. The web grows larger every day, and more visits are carried out by mobile devices. It is more important than ever for companies to have updated and functional pages that can be used on different platforms. We want to find out how common it is for IT departments and web agencies to embrace the newest technology and also what it takes to get them to move from one technology to another. Responsive web design is a constantly growing new technique that helps web developers developing for different platforms.
Bibliotekariestudenter och söksträngsexpansion: Ett experiment om manuell söksträngsexpansion
The focus of the thesis is an information search technique called manual query expansion, which aims to improve the retrieval per-formance in a search system by adding terms to the search query. The study looks at the query expansions done by LIS students, and the eventual beneficial effects by using a search help during the search process. The empirical data have been collected thro-ugh an experiment, with an experiment group as well as a control group. The conclusion is that the students need more education in query expansion in order to be able to use it correctly. There are significant differences between the groups in several aspects, for example in the use of search terms, parentheses, and truncation.
Solcellspolicy avseende Mikroproducenter : Ett förslag på policy avseende solceller hos privata mikroproducenter till Öresundskraft AB
The development of solar photovoltaic (PV) is increasing,with declining module prices and with a strongenvironmental profile. Policies are developed around theworld to achieve the targets set for renewable energy.In Helsingborg, the local power company Öresundskraft isworking with solar PV to achieve the goals of the city.With their vision: - Energy for a Better World and Powerfor the Region, their work with developing the local solarPV market is continuing and the next step is to create asolar PV policy. Today their offer is 1 SEK/kWh for theexcess electricity delivered to the grid.It turns out that compensating the customer is a vitalpolicy and it has to be dynamic to follow the decisions ofpolitics. The same survey shows indeed, thatenvironmental and technical part is of interest. Solar PVwill be supported locally to act on environmentalsustainability and locally produced electricity and withthis Öresundskrafts vision will be achieved..
Lönsamheten i vindkraft : en studie om den förväntade lönsamheten i landsbaserad vindkraft
This thesis analyzes the expected profitability in land based wind power plants. The expected profitability is calculated on the basis of a wind power project in Vartofta, Falköping. The information required to calculate the expected outcome is then concentrated to this project, which is in this thesis called project Näs. In project Näs they plan to build three wind power plants, with each an effect of 2 MWh. These wind power plants are very capital intensive investments with a long and uncertain payback time.
The effect of arginine on root system development in Norway spruce (Picea abies L. Karst) somatic embryos
The demands for higher production yields and better quality materials from the forests are increasing globally. Tree breeding programs are directed to meet the future demands on forests. In order to capture the full benefits from the breeding programs, clonal propagation is necessary. For most conifer species, somatic embryogenesis (SE) is the only available option for large scale clonal propagation of Elite clonal material. For Norway spruce (Picea abies L.
Burn-Out : En feministisk metod i glas
I work with and through glass and it´s from this field and tradition my work springs from. I am interested in how we look at and judge different expressions. I have been taught what visual expressions and shapes that are being appreciated and accepted and how to create objects like that. It should be clean, smooth, simplistic, and utterly pleasing. I recognize these attributes from what is being thought of as beautiful and desirable concerning the body.
Skeppsteknik : en studie om teknikutveckling hos skepp i Medelhavet
Techniques used in the building of a number of ships from the Mediterranean will be presented in this paper. The two techniques thnat will be discussed are shell-based technique and skeleton-basedtechnique. An attempt to clearify and delineate the transition between these two techniques will be made. The possible reasons for transition will then be described and discussed. The development ofthe techniques is going to be identified with help from four wrecks by analyzing their edge joineriesand this facts will be used as a basis for a chronological presentation.
Corporate Social Responsibility - Har det någon betydelse för konsumenten i en reel köpsituation?
Vårt syfte med uppsatsen är att få en ökad förståelse för den svenska kosumentens uppfattning om CSR samt hur detta påverkar deras agerande i en reel köpsituation.Vi har utgått från teorier såsom FCB-grid, TORA-modellen samt en modell över konsumenters attityd till att handla etiskt. Vi har även belyst informationsbehovet och dessutom tagit del av fyra stycken undersökningar som tidigare gjorts kring ämnet.Empirin grundar sig på nio stycken kvalitativa djupintervjuer, gjorda på konsumenter.Vi fann att den svenska konsumenten tycker det är viktigt att ett företag tar sitt etiska samt sociala ansvar. Dock är de inte konsekventa i ord och handling i och med att de inte agerar etiskt i en köpbeslutsprocess..
Funktionell och aerob träning för U16 ishockeyspelare
The aim of this study was to examine if it was possible to improve fitness and strength in young ice hockey players with help of a training programme based on functional training and aerobic training. The training programme was performed on Halmstad Hockey U-16 team where 17 boys participated in the study. We performed the training in a period of sex weeks with three training occasions each week. These consisted of two functional training sessions and one fitness session. In the beginning we emphasized the importance of a correct performance and technique.