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303 Uppsatser om Smart grids - Sida 3 av 21
Utvärdering av Smart Cable för att se belastning på bergbultar
Syftet med detta examensarbete är att studera om SMART Cable Bolt kan användas som en mätmetod och som en del i utvärderingen av det förstärkningssystem som LKAB använder sig av i dagsläget. I och med att man tar ut berg när man bryter malmen så ändras spänningsförhållandena och stabilitetsproblem kan uppstå då spänningarna överskrider bergmassans hållfasthet. LKAB:s gruva i Malmberget består av ett tjugotal malmkroppar varav man idag bedriver brytning i hälften. Stabilitetsproblemen varierar i storlek och omfattning mellan de olika malmkropparna. I Alliansens malmkropp, som är i fokus för detta examensarbete, är det framför allt i de längsgående orterna som problemen uppkommer.
En kvalitativ undersökning om användandet av datorer, IKT och SMART Board i undervisningen
This report is an analysis of the gender representation in Swedish sports media, a comparison between sport in public service television for adults and children. The study explores the differences between the number of male and female sports in the matter of air time and also the number of male and female appearances in the TV shows. The programs studied in this report are the Swedish SVT?s Sportspegeln and Lilla sportspegeln. When we began this analysis we were under the impression that men would be over-represented, but that representation in sports television for children would be more gender equal than the adult counterpart. The result of the analysis confirmed previous studies stating that men dominate the sports programs in Swedish public service television.
Ny stamstation i Yttermalung för anslutning av vindkraft : Nätstudie av olika utföranden i normal- och reservdrift
Since 2004, wind power has had the largest installation of new capacity compared to other energy sources in Sweden. Accommodating new wind power may require strengthening or rebuilding of the existing grid in areas where the grid is already loaded to maximum capacity. This master thesis examine the possibility of a new 400/130 kV substation in Yttermalung, Sweden, with a connection to the two neighboring regional grids in Dalarna and Värmland owned by Fortum. This substation would provide a new connection point to the Swedish transmission system as well as an interconnection of the two, currently separated, regional grids. Different expansion scenarios where a substation with and without series compensation or a phase shifting transformer (PST) to control active power flow were studied.
Anbudskalkyl mer användbar i byggprocessen
This report is written for a consultant networking company with the purpose to review the development ofthe company's remote connections from a user friendly and security perspective.This includes an investigation of the possibilities to consolidate existing authentication methods foraccessing customers. The problem lies in the amount of methods being used. Through case study wefound that smart cards, SMS-service, software and hardware tokens exist.The only method feasible from a security perspective is smart cards. Since the method is not commonlyused by the company's customers a standardization of it would be counterproductive.Also, the purpose of this report is to investigate how the ongoing internal development of the remoteconnection will affect the company's clients. Within this framework we have also verified a designsuggestion.We interpret, after the completion of the case study, that the internal development of the remoteconnection is marginally affected by legal perspectives.
Office Smart Client för dokumentsökning i Platina
Datoranvändare nyttjar idag Internet i sitt dagliga arbete, webbapplikationer är vanligt förekommande vid detta arbete. Prestanda hos webbapplikationer (thin clients) är dock av många orsaker väldigt begränsad jämfört med rich clients, detta tillsammans med övriga begränsningar hos thin clients har medfört att en klienttyp som sammanfogar fördelarna hos rich clients med fördelarna hos thin clients blivit allt mer efterfrågad. Smart Clients bygger på en fusion mellan rich clients och thin clients, Smart Clients är ett relativt nytt koncept som utvecklats av Microsoft med utgångspunkten att klienter ska vara lätta att administrera och uppdatera. Samtidigt ska möjligheten att använda lokala resurser både i form av mjukvara och hårdvara finnas, för att effektivt hantera den beräkning, visualisering och lagring som klienten nyttjar. Slutligen bör en Smart Client dra nytta av funktionalitet hos servers för att ge användaren tillgång till aktuell information.
Framtidens elnät : Hur elbilar och solceller påverkar på det lokala elnätet
The purpose of the project is to determine the impact of solar cells and electrical vehicles on the future electricity grid and distribution network. Future electricity grids will be affected differently than it does today. Therefore, it is important to determine the impacts so that the current electricity distribution system can be developed and redesign to achieve the future demand. In Sweden, government has changed rules and laws in order to make it easier for private sector to invest in renewable energy sources. Our project focused on the impact of the solar cells and electric vehicles on the low voltage electricity distribution.
Nulägesanalys och verifiering av autentiseringsmetoder : En studie på ett konsultbolag i nätverksbranschen
This report is written for a consultant networking company with the purpose to review the development ofthe company's remote connections from a user friendly and security perspective.This includes an investigation of the possibilities to consolidate existing authentication methods foraccessing customers. The problem lies in the amount of methods being used. Through case study wefound that smart cards, SMS-service, software and hardware tokens exist.The only method feasible from a security perspective is smart cards. Since the method is not commonlyused by the company's customers a standardization of it would be counterproductive.Also, the purpose of this report is to investigate how the ongoing internal development of the remoteconnection will affect the company's clients. Within this framework we have also verified a designsuggestion.We interpret, after the completion of the case study, that the internal development of the remoteconnection is marginally affected by legal perspectives.
Säkerhetsutvärdering certifikatserver i stället för aktiva kort
Business and organizations use computer network in a greater extension than ever before, especially for business-critical use. That increase the demand of security for all systems, both against internal and external threats. The demand on the authentication method used today increases. Today they normally uses password or some kind of smart card. I will performa literature study that will investigate the possibility to increase the security in authentication of users without the use of extra hardware.
Framtidens konsumtion av digitala tjänster : En studie kring bruk av digitala tjänster på mobila enheter, baserat på ett Smart City-perspektiv.
Syftet med denna undersökning är att med hjälp av två vetenskapliga metoder, kvalitativa intervjuer och användardagböcker ta reda på hur användares mobila brukarvanor ser ut och vilka typer av tjänster kan de ligga till grund för baserat på ett Smart city-perspektiv. Arbetet kommer även att analysera och utveckla metodiken för fortsatta studier inom ämnet.Mobilen har under de senaste åren utvecklats till att bli en enhet där dess ursprungliga telefonfunktioner blivit sekundära egenskaper. Dess främsta ändamål är fortfarande för att kommunicera med andra, men i första hand genom andra typer av tjänster. Man kan idag även se hur utvecklingen går från ett bruk av digitala tjänster där varje enhet har specifika syften, till ett bruk där enheter samarbetar och delar ett gemensamt syfte. I och med att vårt bruk, och våra vanor, av dessa enheter förändras, så förändras även naturen hos tjänsterna de tillhandahåller.
Vindkraft och elbilar på Öland år 2020 : Är smart laddning av elbilar lösningen på ett framtida flaskhalsproblem?
The Island of Öland has one of the best wind climates for land based wind power in Sweden. An objective for the Island is to become self sufficient using electricity from renewable source of energy such as wind. There is currently 55 MW capacity installed on the Island and it is estimated that grid congestion will occasionally occur if more than 135 MW was installed.The aim of this thesis is to investigate he possibilities for load management by smart charging of electric vehicles, EV. The definition of smart charging is that the charging is done to some extent with an ICT-system, (information and communication technology) that correlates wind electricity generation to the charging of electric vehicles. The purpose is to avoid grid congestions on the sub-sea cable that connects Öland to the mainland because that in turn would curtail wind energy production.
Cash is king - eller? : Ett kontantlöst samhälle
Title:Cash is King ? or is it?Level:Final assignment for Bachelor Degree in Business AdministrationAuthor:Caroline Eng and Jessica HillbergSupervisor:Jonas KågströmDate:2011- 06Aim:There is a long tradition of trading the currency and the first coins can be traced back to Persia already 500 BC. With the modernization of society and the technological advances we have made in recent years, we are now using electronic payments more and more. We pay by card, Internet banking and mobile phone in addition to cash. The purpose of this paper is to follow Swedbank project "cash smart" and have it as a basis when we examine if we are heading for a cash-free society and what obstacles and opportunities there is for a cash-free society.Method:We have used a qualitative method to conduct interviews with two individuals involved in the project "cash smart" at Swedbank in Gävle.
I jakt på överavkastning : En investeringsstrategi med P/S-talet som utgångspunkt
Title:Cash is King ? or is it?Level:Final assignment for Bachelor Degree in Business AdministrationAuthor:Caroline Eng and Jessica HillbergSupervisor:Jonas KågströmDate:2011- 06Aim:There is a long tradition of trading the currency and the first coins can be traced back to Persia already 500 BC. With the modernization of society and the technological advances we have made in recent years, we are now using electronic payments more and more. We pay by card, Internet banking and mobile phone in addition to cash. The purpose of this paper is to follow Swedbank project "cash smart" and have it as a basis when we examine if we are heading for a cash-free society and what obstacles and opportunities there is for a cash-free society.Method:We have used a qualitative method to conduct interviews with two individuals involved in the project "cash smart" at Swedbank in Gävle.
Rätt gåva för rätt tillfälle
This master thesis is a study of the Swedish hydropower capacity to balance wind power. The Swedish government has decided that it should be possible to produce 30 TWh from wind power in the year 2020. The Swedish municipalities have to have plans for wind power plants with total yearly generation of 30 TWh. Wind power is an variable energy source that needs to be balanced by other energy sources. In Sweden the Swedish hydropower can be used for balancing a large scale introduction of wind power.
Balansering av en storskalig vindkraftsutbyggnad i Sverige med hjälp av den svenska vattenkraften
This master thesis is a study of the Swedish hydropower capacity to balance wind power. The Swedish government has decided that it should be possible to produce 30 TWh from wind power in the year 2020. The Swedish municipalities have to have plans for wind power plants with total yearly generation of 30 TWh. Wind power is an variable energy source that needs to be balanced by other energy sources. In Sweden the Swedish hydropower can be used for balancing a large scale introduction of wind power.
Har det skett en kvalitetsförändring i och med avskaffandet av revisionsplikten för småföretag? : Kvalitativ studie med utgångspunkt från tre intressentgrupper
Title:Cash is King ? or is it?Level:Final assignment for Bachelor Degree in Business AdministrationAuthor:Caroline Eng and Jessica HillbergSupervisor:Jonas KågströmDate:2011- 06Aim:There is a long tradition of trading the currency and the first coins can be traced back to Persia already 500 BC. With the modernization of society and the technological advances we have made in recent years, we are now using electronic payments more and more. We pay by card, Internet banking and mobile phone in addition to cash. The purpose of this paper is to follow Swedbank project "cash smart" and have it as a basis when we examine if we are heading for a cash-free society and what obstacles and opportunities there is for a cash-free society.Method:We have used a qualitative method to conduct interviews with two individuals involved in the project "cash smart" at Swedbank in Gävle.