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1037 Uppsatser om Radio frequency (RF) - Sida 52 av 70
Utvärdering av konsekvenserna för nätanslutning av vindkraftparker i Sverige vid införandet av nätkoden Requirements for Generators
Grid codes are becoming more demanding on power generating units due to the factthat the complexity of the power grid is increasing. The penetration of wind powerhas grown over the last years and it is clear that wind farms need to be addressedwith the same type of grid codes as conventional generation units. There is howeveran undeniable difference between the technology in conventional synchronousgeneration units, and the asynchronous generation units in wind farms.This thesis has reviewed the current grid code in Sweden and compared it to the newcode proposed by ENTSO-E, ?the Requirements for Generators?, in the aspect ofwind farms with an installed power of 30 MW or more. The comparison has beencomplemented by an analysis of how wind farms of two different technologies(Doubly fed induction generators and full power converters) can meet therequirements and technical proposals have been given on how to be able to meetcompliance with the new grid codes.The Requirements for Generators contains many non-exhaustive and optionalrequirements, because of this it has been difficult to, at this stage, exactly point outthe technical impact on the grid connection of future wind farms in Sweden.
Effekter av fysisk aktivitet på psykisk ohälsa hos unga kvinnor
Among young adults and especially women, psychological issues are common phenomena in the society such as depression, anxiety and stress. Research has shown that physical activity can be a complement for anti-depressant medication. The aim of this review is to examine previous research to find out how physical activity can provide positive effects on overall mood state in particular young women's psychological health. The results of this review is that there are support in the literature of young women that physical activity may enhance mood in studies of depression and anxiety symptoms and small support for the effects on reducing stress. Physical activity with both high intensity and low intensity has shown to have positive effects on depression and anxiety, but the physical activity has to be regular for long-term effects.
Skapandet av ett fredligt samhälle. Vad kan vi göra? : En studie av gymnasieelevers uppfattning om skolans och deras egen roll i skapandet av en fredligare värld
The aim of the study is to examine what upper secondary school students think that they themselves and their school can do to create a peaceful society. The study combine qualitative and quantitative methods based on questionnaires distributed among 328 students in three high schools in Sweden. The survey is a combination of multiple choice and open questions. For the analysis of quantitative responses the computer program SPSS was used producing frequency tables and response rate schemes. To analyze the questionnaire's qualitative part a narrative analysis method was used.
Riskbaserat provtagningsprogram för mikroorganismer i Gäddviks vattentäkt
Risk-based sampling program of microorganisms in the water source in northern SwedenAfter several disease outbreaks caused by parasites in the drinking water during the last years, it is more essential than ever to insure that the water supply companies have enough barriers to counteract the presence of microorganisms in the outgoing water. It is also discussed whether climate changes such as increased precipitation can have a connection to the increased cases of parasites in water sources. The water source at Gäddvik is Luleå municipality?s largest and provides drinking water to 64 500 of Luleå?s 74 000 inhabitants. The investigation of microorganisms in the water source, especially in the Lule River has not been as prioritized as the sampling of chemical parameters.
Territoriella identiteter och fusioner : Regional identitet vid interregionala fusioner
Title: Territorial identities and fusions- regional identity by interregional fusions Level: Final assignment for Bachelors Degree in Social Science with specialization in Urban and Regional Planning. Major subject: Geography. Author: Mladen Krajisnik Supervisor: Carl-Johan Nordblom Date: 2009 May Intention: The main focus of this study is to verify the existence, or nonexistence, of local and regional identities. Considering the result regarding regional identities, this thesis will continue on to clarify if these identities are to be seemed as a threat or resource during fusions, and if so, how can one best manage these different identities.Method: Only secondary data has been used in this study. I've botanized amongst the literature that processes fusions, impact of culture, identities, regions, territory. Continuing on, the collected empirical resources have been compared to my theory, from which an analysis was able to be spawned and conclusions were drawn.Result & Conclusions: The thesis confirms different regional identities, although it does not treat the subject regarding the inner strength of regions comparing to one another.
Intervjuer mot väggen : En analys av svenska och brittiska radio- och teve-journalisters frågeteknik
De metoder som används i de studerade svenska intervjuerna (?Lördagsintervjun? och?Sverker rakt på?) för samman reportern och politikern istället för att visa på oberoende. Denfrågeteknik som används skapar intimitet snarare än konfrontation och därför ställs intemakten till svars. Detta görs i uppsatsen tydligt genom en jämförelse med brittiska politiskaintervjuer.I uppsatsen analyseras sex etersända politikerintervjuer från fyra teoretiska perspektiv - detnormativa journalistiska perspektivet, samtalsanalysen, retoriken och maktanalysen. Breddenpå frågorna tydliggör hur de olika intervjuarna ställer sina frågor och hur de fungerar med deolika intervjupersonerna.
Patienters upplevelse av Basal Kroppskännedom efter avslutad behandling : En kvalitativ intervjustudie speglad ur socialkognitiv teori
Introduction: Basic Body Awereness Therapy (BBAT) is a treatment developed to treat different kinds of psychiatric diagnoses, but also to prevent the emergence of any other unhealthy conditions. The treatment is aimed to increase the body control and conscious breathing but also requires mental awareness.Aim: The aim of this study is to, based on social cognitive theory, describe patients' experiences of BBAT performed as group therapy.Method: The study design was qualitative with an inductive approach. Five people were interviewed after a BBAT group treatment in primary care. The data was collected by individual interviews with semi-structured questions and the interviews were analysed by qualitative content analysis.Result/Conclusion: The participants experienced increased body awareness and implemented BBAT strategies even though the treatment frequency was insufficient. BBAT was described as helpful used to regulate intensity level, stress management and facilitate breathing.
Nyttan av kurserna på naturbruksprogrammets djurvårdsinriktning
The aim of this study is to find out if the former students think that they have made use of the courses they have taken at the Natural Resource Use Programme specialised in Animal Husbandry at Lillerudsgymnasiet or if the courses should be exchanged. In the study it is assumed that a course can be useful professionally, for further studies and in private life.The main questions are: Have the former students made use of the courses they took at the Natural Resource Use Programme specialised in Animal Husbandry at Lillerudsgymnasiet? Was it the right decision to replace the course Horses?I have sent a questionnaire to all the students who graduated between 2003 and 2007. Out of 107 questionnaires I received 66 replies (62 %). All students have studied the same mandatory courses but different eligible courses.
Produktionsstyrning av cylinderbricka : För Atlas Copco, Tierp.
The component workshop at Atlas Copco inTierp intends to reduce the costs inorder to increase their competitiveness.This thesis examines how the productionmanagement around cylinder washersshould be managed in a way that meetsthe customer needs. The customer to thecylinder washer is Atlas Copcos assemblydepartment in Tierp.The purpose of this thesis is to providean alternative way of managing theproduction. A chapter of theory is addedto give the reader an insight ofdifferent types of production managementsystems as well as the underlyingknowledge needed to get a better readingexperience. An introduction of kanbancan in theory help Atlas Copco in thedirection they strive. It should beclear how the purpose of this thesisaffects the cost for the componentworkshop and also how it relates to thecurrent production.
CARL BILDTS BEMÖTANDE AV JÄVSANKLAGELSER PÅ TRE OLIKA MEDIALA ARENOR ? EN RETORIKANALYS
In July 2011 the journalists Martin Schibbye and Johan Persson are arrested in Ethiopia when on a mission to report the activities of the oil exploration company Lundin Petroleum. Following a trial, closely observed by media, the two journalists are convicted to a prison sentence of eleven years. The Swedish Minister of Foreign Affairs, Mr. Carl Bildt, is now to act on their behalf to preserve their rights as Swedish citizens. However, doubts are raised as to whether Bildt has a conflict of interest because of his former engagements as a board member in Lundin Petroleum.
RFID inom bagagehantering - Utmaningar kring ett införande på svenska flygplatser
Ur ett globalt perspektiv blev under 2014 ungefär 7 av 1000 resväskor försenade isorteringsprocessen, vilket resulterade i 24.1 miljoner resväskor. Kostnaden kopplattill detta är stor hos många flygbolag, då det innebär manuell hantering. Ett steg motlösningen av misskött bagage är Radio Frekvent Identifikation (RFID) som börjardyka upp på flygplatser runt om i världen som ett komplement till denstreckkodslösning som finns idag. En fullständig implementering av ett RFID-systemöver samtliga flygplatser i världen skulle göra att hela industrin sammanlagt skullekunna spara $760 miljoner USD årligen i kostnader kopplat till försenat ochborttappat bagage.Tidigare studier visar att ett införande av ett RFID-system inom bagagehantering påen flygplats har medfört fler fördelar än nackdelar inom olika aspekter somexempelvis minskade kostnader och effektivare processer. Vilket leder till fråganvarför har inte svenska flygplatser infört detta? Denna studie har som syfte attundersöka vilka utmaningar som finns kring ett införande av ett RFID-system inombagagehantering på svenska flygplatser.
Nyhetsjournalister och informatörer : hur lokala nyheter samproduceras
Jag vill med denna uppsats ta reda på hur nyhetsjournalister och informatörer i en mellanstorstad interagerar med varandra. Min huvudsakliga problemformulering är: Hur ser förhållandet mellan nyhetsjournalister och informatörer ut sett utifrån vem som styr mest? Vad är det som gör att aktörerna hamnar i överläge respektive underläge?Jag har sammanlagt intervjuat nio yrkesverksamma. Sex av dem är journalister som arbetar på Sveriges Radio Kronoberg och Smålandsposten. Tre är informatörer som representerar offentliga myndigheter, nämligen Landstinget Kronoberg och Polisen Kronoberg.Mina resultat visar att relationen mellan journalister och informatörer är högst föränderlig.
Kungliga blodsugare och markattor : En genusstudie av politiska brott på 1700-talet
The purpose of this study is to examine political crimes in and women?s political activity in 18th century Sweden. The cases of political crimes which has been used range from 1700- 1789 and they form an outline of the patterns of political crime in this century. These cases contain different types of political crimes, but most common ar defamation of the royal family, defamatory writings, rumor-spreading and treason. To study women?s political activity, seven cases ranging from 1749 to 1758 have been more closely studied.
Självskadebeteende- två unga mäns berättelser
This essay is focused on the phenomena of self-injurious behavior of two young men. The purpose of the essay is to enlighten their experiences of their earlier self-injurious behavior, and to further enlighten which factors they believe have been contributed to the origin and the ending of the behavior. The research questions the essay raises are: Which factors has contributed to the origin of the self-injurious behavior? Which functions did the self-injurious behavior have for the young men? What made the two young men quit their self-injurious behavior? The essay is qualitative and do not imply to generalize the results and it is made from interviews with respondents and earlier research on self-injurious behavior. The results show that there are differences in the factors that origin of the self-injurious behavior between the respondents.
Akutmedicinska vårdkedjans bedömning och prioritering av drabbad : En pilotstudie
The study aimed to investigate the acute medical chain consisting of SOS operator, ambulance nurse, emergency nurse and emergency physician with regard to the assessment and prioritization of the victim.The design of this journal study is retrospective with descriptive approach. Data were collected from all ambulance missions carried out in Uppsala county 2009-01-01 between the hours 00:00 to 12:00. Sample period was chosen because the prerequisite for high frequency on the ambulance mission was supposed to be good. In order to be able to systematize the compilation of data a protocol were prepared and used. Applicable data were collected from three databases SOS Alarms, ambulance operations, and the University Hospital in Uppsala.