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1037 Uppsatser om Radio frequency (RF) - Sida 38 av 70

Flerspråkiga Tesaurer: Att uttrycka ett och samma begrepp utifrån skilda kulturer och olika språk.

The aim of this paper is to investigate the problems in multilingual thesauri, with a focus on the problem of conceptual equivalence between different languages. This study compares the problems and solutions that have been carried out in the Eurovoc multilingual thesaurus with the ISO 5964 ISO 5964 is a guideline for establishment and development of multilingual thesauri. The Swedish descriptors in the subject area "education and communication", from Eurovoc have been observed and compared with the guidelines recommendations. The results show that, the majority of the investigated Swedish descriptors do not present any problem. Most of the terms that are used as descriptors are found in dictionaries and glossaries or appear with high frequency in Swedish websites.

När pojkar betraktas som män : en kvantitativ och kvalitativ studie om åldersgräns för tonårspojkar på Sveriges kvinnojourer

This paper aimed to investigate to what extent there is an age cut-off for teenage boys in the women?s shelters of Sweden and how a possible cut-off is described and maintained. This occurrence has not been investigated earlier to a large extent, which emphasizes the importance of this paper. A mixed strategy was used to cover both the frequency as well as the explanations to the age cut-off. The quantitative survey was sent to all women?s shelters in Sweden and the result showed that 56 % of the shelters had an age cut-off for teenage boys from 12 years of age and above.

Modelering av Wideband : Code Division Multiple Access

Today wireless transmission of data is becoming more and more popular and the need for faster transmission rates is increasing. Since the bandwidth is limited it is important to try to use it to the fullest. CDMA is a technology that allows multiple accesses on the same frequency and time thus making it very bandwidth efficient. The CDMA technology was first introduced in the second generation?s cellular systems but has since then been improved and is reused in today?s 3G systems as Wideband CDMA.

Electronic Journals, Just in Case, Just in Time, Just for You ? användning av elektroniska tidskrifter vid Chalmers tekniska högskola

This user study was carried out at the library at Chalmers University of Technology in Gothenburg in the spring of 1999. Chalmers wanted to investigate how much their employees use electronic journals. To facilitate decision-making and be cost effective, the library needed to know about their customers' opinions. The main purpose was to investigate the usage of electronic journals, how the library's choice of these journals affects the frequency of use and what the attitudes towards them are. A questionnaire was sent out to 2 400 employees; 477 replies were received.

Vox pop, enkät och fem funderar. : En kvantitativ innehållsanalys av enkäter i tre svenska dagstidningar åren 1997 och 2007.

The purpose of this BA-thesis was to study how three daily Swedish newspapers use a specific type of exemplars, which are recognized by a number of attributes. A photograph of the person that is interviewed always illustrates this type of exemplars and at least two persons are asked the same question.    The three newspapers that have been compared in this study each represent one of the major types of Swedish newspapers: morning press, tabloids and local press. By using a quantitative content analysis, one month was examined in all three newspapers in the year of 1997 and 2007.  Two of the theories that have been central in the thesis are Colin Sparks model of tabloidization, which demonstrates the process of tabloidization and McQuail?s description of commercialization.

Hydroakustisk kommunikation med bandspridningsteknik

This thesis investigates techniques for stealth hydroacoustic communication using spread spectrum. The Swedish naval defense organisations have a vision that all their units should be able to communicate with each other, even between underwater vehicles. But the properties of water makes it a complex channel to use for wireless communications. Radiomagnetic waves have very limited range in water, therefore acoustic waves are used. In this report the basics of wireless communication systems are described including source coding, channel coding, modulation techniques as well as different techniques for spread spectrum.

Skapandet av varaktiga relationer vid mötet mellan byggbranschen och "den nya ekonomin": en fallstudie av relationen mellan NCC Telecom och Ericsson Radio Systems

Uppsatsen handlar om skapandet av varaktiga relationer i byggbranschen. Undersökningen genomfördes som en fallstudie av relationen mellan NCC och Ericsson avseende 3G-utbyggnaden. Syftet med uppsatsen är att undersöka orsakerna till aktörernas samarbetssvårigheter i byggbranschen, när det är lämpligt med varaktiga relationer, hur sådana skapas samt vilken samarbetsform som är lämplig. Aktörernas samarbetssvårigheter beror på de traditionella avtalsformerna, som endast avser enskilda projekt. För att främja samarbete måste parterna skriva långsiktiga avtal så att varaktiga relationer möjliggörs.

Intensiv Stamningsterapis effekt på stamningsbeteenden, förståelighet och attityd till kommunikation hos fem barn

The purpose of this study was to investigate the effects ofparticipation in an integrated intensive stuttering program (IST) on stutteringbehavior, intelligibility and communication attitude, at individual and grouplevels. Five children aged eight to twelve years participated in the study.Stuttering behavior and intelligibility were judged by two independentstudents in speech and language pathology based on a total of eight videorecordings, before, during and after therapy. Communication attitude wasmeasured by the Swedish version of the self-report questionnaireCommunication Attitude Test (CAT-S). At an individual level, the initialstuttering profile and the changes shown during and after the IST varied. Ata group level, a significant decrease in stuttering frequency and asignificantly higher level of intelligibility were found, after as compared tobefore therapy.

Upplevelse och erfarenheter av läsning och skrivning hos patienter med afasi

The aim of the study was to explore how persons with aphasiaexperience literacy and reading and writing. Seven persons with mild-moderateaphasia were interviewed. The interviews were recorded, transcribed andanalysed using qualitative content analysis. The analysis resulted in three mainthemes; A changed reading, A changed writing and How to adjust andaccommodate to new conditions. The most apparent aspect was that theinformants experienced that literacy had changed, regarding what and how theyread/write.

Vårdpersonalens kunskaper om munvård och deras inställning till tandvårdens uppsökande verksamhet samt personalens uppfattning om hur den fungerar - en enkätstudie

The aim of this study was to examine nursing personnel?s knowledge about oral health care and attitudes towards the free assessment of the oral status done by the dental service for elderly and handicapped persons in a municipality in the south part of Skåne, and also how personnel experience the free assessment of the oral status done by the dental service and how it functioned at the facilities. The study was carried out by sending out 150 questionnaires to nursing personnel at six special housing facilities. 73% (110 personnel?s) answered the questionnaires.

Reagera och agera: Styrka och snabbhet i den manuella responsen för emotionella stimuli

In this study I investigated whether the strength in the manual response for emotional and neutral stimulus search arrays can explain some of the difference in reaction times (RT:s) for emotional stimuli, or not. Earlier, perceptual, cognitive and attentional processes has mostly been used to explain the variance in RT:s. Thirtythree individuals were asked to, as fast as possible, detect a target picture among distractor pictures in 3 rows x 4 columns arranged search arrays. The pictures were categorized in fear relevant animals (snake, spider) and neutral animals (cat). The results showed, more correct responses for cat target.

Tonfrekvensspårledning : S-förbindningens funktion och dimensionering av alternativa material i förbindningen

Spårledning används inom järnvägen för att lokalisera var tåg befinner sig. Detta examensarbete behandlar en modell av tonfrekvensspårledningar från Alstom. Teoridelen behandlar de båda modellerna DTC ? 921 och DTC- 24 medan uträkningarna enbart behandlar den tidigare. Tonfrekvensspårledningar separeras med elektroniska skarvar genom förbindningar i spåret.

I Normalitetens Gränsland : hur närstående berättar om en kvinnas övernaturliga förmåga

My essay explores how people talk about a woman´s supernatural ability in relation to normality and abnormality. In order to find this out I´ve made interviews with people inclose relations to Hildur Lawergren. Hildur lived all her life in Fole on Gotland where she was often interviewed in local papers and on the radio about her predictions on the coming weather. She used melted candles to make her predictions. The candles were melted down on Christmas eve.

Täckningskarta RDS P3-P4

I samband med introduktion av de nya digitala underbärvågssystemen på FM-bandet, har ett behov av att kunna estimera tillgängligheten för tjänster som nyttjar denna bärare uppkommit. Nya tjänster introduceras och detta har lett till ett ökat tryck från flera håll i Teracom om behov av en noggrannare täckningskarta för bl a underbärvågskanalen RDS och DARC. Exempel på tjänster som Teracom infört är Epos som innebär överföring av korrektionsdata till GPS-mottagare (dGPS) för att ge en betydligt ökad positionsnoggrannhet. Syftet med detta examensarbete är att prediktera och verifiera täckningen för underbärvågssystemet RDS på P3 och P4:s frekvenser. Valet av frekvenser beror på att det är just på dessa frekvenser som tjänsten Epos sänds ut.

Hur har införandet av automatiska mjölkningssystem påverkat juverhälsan hos mjölkkor och vilka riskfaktorer finns?

Today, there are more than 12 000-14 000 farms worldwide using an automatic milking system (AMS). Studies have shown that transition to AMS affects the udder health of cows adversely, recognized primarily as elevated somatic cell counts. There are several reasons for this, for example the greater variation in milking frequency seen in AMS. On one hand, short milking intervals may lead to bad teat condition of the cows due to the stress the milking procedure exposes the teats to. Too long milking intervals, on the other hand, seem to predispose for milk leakage, which is, in turn, a risk factor for the development of mastitis.

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