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2488 Uppsatser om Frequency controlled operation - Sida 64 av 166
EAS-tagg med fuktsensor : Design och utvärdering av EAS-alarmteknologi för fuktdetektering
Electronic article surveillance (EAS) is widely used in shops and libraries together with an RF-tag attached to the goods or books in order to prevent shoplifting. By implementing the addition of a moisture sensor to the RF-tag, other functions become possible, including the ability to use as an alarm with regards to frozen goods, which have been shipped but which have melted and have, subsequently, refrozen. In- relation to care for the elderly, one time-consuming step involves checking whether there is the necessity for a change of diaper and this can, instead, be based on an RF-tag with an EAS-system alarm. A preliminary investigation was made using the moisture sensors, which involved how the resistance changes when liquid and/or heat is applied. A simulation of the LCCR circuit (RF-tag with the sensor) was conducted in order to determine how the resonance frequency changes for different resistances levels.
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.
Samverkan mellan Polis och Kustbevakning
Kustbevakningen och polisen är tvåmyndigheter som samverkar med varandra. Denna samverkan är viktig för att kunna övervaka och beivra brott efter kusten. Kustbevakaren har i dag ett flertal befogenheter men saknar bland annat befogenheter när det gäller ordningsstörning och brottsbalksbrott, det är här samverkan är speciellt viktig. I det här fördjupningsarbetet tittar jag närmare på hur samverkan mellan polis och kustbevakning fungerar samt kommer med förslag på hur samverkan kan förbättras. Fördjupningsarbetet bygger främst på interjuver från polis och kustbevakning.
Analys av dricksvattenrening med metoderna Mikrobiologisk riskanalys (MRA) och God desinfeksjonspraksis (GDP)
Drinking water is produced from raw water and is either from groundwater or surface water. This thesis aims to find out if the cleaning process of raw water is sufficiently effective. This is important because consumers are otherwise at risk of waterborne infection caused by pathogens. There are three groups of pathogens; bacteria, virus and parasite. These have different characteristics which mean that they require different water treatment to be separated.
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.
Lek och lekmiljöer : Förskollärares beskrivning av planerade lekmiljöers betydelse för leken
The purpose of this study is to gain knowledge and a broader understanding for how pre-school teachers describe the importance of planned play environments including in what manner children are given influence. By qualitative interviews with five pre-school teachers from four different units I was able to gather data that shows how the planning process concerning a specific play environment had worked and why it looked as it did. The results show among other things that the pre-school teachers viewed the play environment as a vital part of the daily operation and pointed out that it was of vital importance that it came from the children?s interests. Depending on how the play environment had been organized and what its purpose was it offered different amounts of affordances..
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.
Barns inflytande, delaktighet och intresse : En studie om samspel och förhållningssätt i förskolans vardag
The aim with this study was to give and receive an insight of children?s participation during one day in a preschool. Answers we were interested in finding out were how pedagogues act in relation to children´s influence, participation and interests and how this shows in the pedagogical context. Our own interest of children´s participation was influenced by the new revised curriculum that took place in 2010. Nowadays the pedagogues? have to be more active and reflect and document children´s influence and participation, and therefore we wanted to use this opportunity to create a picture of how pedagogues deal with these new guidelines.We have with an ethnographic inspired approach performed a qualitative study with data collected during one day with focus on children´s influence, participation and interest in one preschool section.According to the result children?s participation and influence this day were controlled by the pedagogue.
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.
Boksomäromöjligatthitta?: En studie av de sociala taggarna i Stockholms stadsbiblioteks OPAC
The aim of this thesis is to, through an empirical study ofthe social tags in the City of Stockholm libraries? OPACwith critical discourse analysis, examine the social tags?linguistic design, usability, and communicative potential? all in relation to the context. It is a linguistic study andit is important to take into account that the tags are extremelyshort texts ? single-word-texts. My starting-pointis that the tags are a form of utility texts.What I find is that a clear majority of the tags are nounsand function as index terms, but that there are differencescompared to authorized index terms.
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.
Politisk sekterism i Libanon : En fallstudie av Taif-avtalet och den konsociationella demokratins hållbarhet
Aiming to contribute to the discourse on the sustainability of consociational democracy in plural societies, this case study provides an examination of Lebanon?s power sharing model. The study begins with an evaluation of the Taif Agreement. After acknowledging its effect on Lebanon?s consociational system the function and operation of Lijphart?s four consociational elements are analyzed.
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.