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1507 Uppsatser om Radio frequency identification (RFID) - Sida 46 av 101
Drivförstärkare : Bredbandig drivförstärkare med hög verkningsgrad
This report present the design and manufacturing of a wide-band driver amplifier placed in radar module for airborne applications. The major goals for the amplifier were a high efficiency and to deliver a predefined output power. To reach the second goal an additional preamplifier had to be constructed. The amplifiers were constructed in three steps: Design and Layout in the software Microwave Office, Mounting components and Verification. The driver amplifier was decided to be a push pull configuration consisting of two parallel transistors biased in class AB.
Utvärdering av grafisk utvecklingsmiljö för programmering av signalprocessor
This work aims to evaluate the possibility of using a graphical programming language to develop software for a digital signal processor. A fixed-point digital signal processor called Blackfin BF-537 is used for this. Instead of using conventional programming languages, like C or assembler, for software development the possibilities to use a graphical environment to fill the same purpose are examined. The development environment primarily used is NI LabVIEW, but also the use of Mathworks Matlab Simulink is investigated. A variety of programs consisting of various signal processing operations and utilities are developed using these development environments.
Politisk identifikation som funktion av ålder och tid på Internet
Det talas idag om ett minskat stöd och identifikation till politiska partier. Forskning visar att unga människor spenderar mer tid och är mer benägna än äldre att använda Internet för att skaffa politisk information. I en enkätundersökning med 125 deltagare i fyra åldersgrupper undersöktes om unga i större utsträckning än äldre identifierar sig med icke-parlamentariska rörelser som för fram sina budskap på Internet. Hos deltagarna mättes graden av parlamentarisk och icke-parlamentarisk identifikation som funktion av ålder och Internettid. Unga hade en signifikant högre Internettid än äldre.
Kampen om definitionerna : Politikers retoriska självförsvar under mediedrev
Introduktion: Under 2011 till året därpå var två politiker, Carl Bildt (moderat utrikesminister) och Håkan Juholt (Socialdemokraternas partiledare), utsatta för mediedrev: Etiopiensvenskar-na och bostadsaffären. Juholt var som en svamp som sög upp all kritik medan Bildt framstod som teflon i jämförelse. Hur kommer det sig att Bildt klarade sig och fick sitta kvar som mi-nister, medan Juholt avgick?Problem: Vad är det som skiljer Bildt från Juholts retorik under mediedreven 2011 enligt sta-tusläran? Hur ramar journalisterna in debatten för Bildt respektive Juholt?Teori: Med statusläran (stasis theory) kan en sakfråga analyseras retoriskt genom ett av fyra status (?ställning?): fakta, definition, kvalitet eller procedur. Exempelvis, ett dödande kan handla om huruvida det ägt rum (fakta), om det var mord eller självförsvar (definition), om det var rätt (kvalitet) samt om frågan ska avgöras i annat forum (procedur).
"Dom kallar oss invandrare!" : En undersökning som bygger på hur ungdomar av "andra generationens invandrare" identifierar sig själva.
This investigation is aimed to analyze and gain insight into how young people of the "second generation immigrants" identify themselves in a society where they are seen as immigrants of the environment in view of the name. Also, how they identify themselves during trips to their home/country of origin are of relevance to see if they are affected in their own identification, depending on how they believe they are seen from the outside.Through a survey, the statistics were produced, which serves as a preliminary to the larger part of the investigation where six individuals were interviewed in order to give deeper answers to the questions sought. The answers that emerged were then analyzed in relation to selected theories.In connection with the investigation it has emerged that the young people in question often identify themselves in such a way that they think that the surroundings look at them. It is in relation to how others see them as they see themselves, which creates a distance between the surroundings and themselves. With increased knowledge on both sides, this distance between the environment and the young people in this investigation maybe could reduce..
Utformning och styrning av lager : Skapande av modell för tillämpning på Sandvik SMT
Inför detta arbete hade vi en förväntad leverans att utgå ifrån, en stor del av dessa förväntningar låg i att redogöra för användningen av adresserings- och identifieringsteknik inom Sandvik SMT?s (Sandvik Materials Technology, affärsområde inom Sandvik AB) lagerytor. Under arbetets gång har dock strukturen förändrats och denna rapport kom att bygga mer på utformingen och styrningen av ett lager. För att på ett effektfullt sätt visa på, hur ett lager under optimala förhållanden utformas och styrs så tog vi litteraturen till hjälp och utformade en modell som vi sedan använt i vårt arbete. Syftet med detta examensarbete kom därför att handla om att skapa en modell för att utforma och styra lager inom industriell verksamhet.Modellen tar upp de faktorer som är viktiga för utformning och styrning av befintliga lagerytor eller nya lagerytor som skapas.
Gymnasieungdomars identifiering med den egna sexuella läggningen : Självkänsla, nära socialt stöd, ifrågasättande
Under ungdomsåren sker stora förändringar, både fysiskt och psykiskt. Utforskandet av sexualiteten blir mer aktuell och den sexuella identiteten och den sexuella läggningen kan genomgå förändringar. Viktiga aspekter för att identifiera sig med den sexuella läggningen anses av vissa forskare vara självkänsla, nära socialt stöd och ifrågasättande. Syftet med denna studie är att finna svar på hur mönster av dessa faktorer kan påverka den sexuella identiteten bland gymnasieungdomar. Studien genomfördes med en kvantitativ ansats.
Krubbitning hos häst på olika strömaterial :
By limiting our horse?s freedom of movement, we restrict their opportunity to forage, which is one of their most important needs. If their need of forage is not fulfilled it can lead to frustration, which might manifest itself in abnormal behaviour, like the oral stereotypies for example crib-biting. It is a held belief that the horse swallows air while crib-biting, which they don?t, and that swallowed air causes colic, and the belief that other horses can copy the behaviour, leads to the use of many methods to prevent the behaviour.
Valet av Renegade och Paragon i Mass Effect - Undersökning av möjliga aspekter på valet att spela som ond eller god med fokus på spelarens subjektiva upplevelse
The purpose of the study was to examine possible aspects concerning the choice
to play as good or evil with a focus on the players´ subjective experience. A
form was constructed and the material was interpreted according to
Interpretative Phenomenological Analysis (IPA). The games Mass Effect I and II
were used as an example of the choice to play as good or evil since the choice
between Renegade (evil) and Paragon (good) is present. The sample consisted of
individuals who had played Mass Effect I and/or Mass Effect II and were over 18
years old. The end result concerning who played a Renegade or a Paragon came to
be very uneven (15 out of 16 participants played a Paragon) which means that
the result mostly relates to possible aspects concerning the choice to play a
Paragon.
FosterhemsvårdMed fokus på metoder vid utredning av nya familjehem, metoder vid handledning/stöd samt kunskap till blivande familjehem
This is a study of foster homes. The focus is at the methods, used at foster homes evaluations and at guidance/support the foster homes are offered.En questionnaire is made in Skåne, on this theme.Except that, it contains a fairly lot of useful information for families who are interested in becoming foster home.The questionnaire is made among public and private participants who evaluates new foster homes and places children (under 18 years) in Skåne.Because of the low answer frequency, we can?t generalize the result of the questionnaire. But the result we have obtained indicates that Kälvestens evaluation method is used frequently.In the subject of support/guidance we can?t see any specific methods used.
Adaptiv katalysatormodell för reglering
This master?s thesis describes the development of a model of the catalystsystem aiming at control by an MPC. A well functioning model, which is suitable in control purpose, is important while emission legislation become more and more hard to fulfill for the car manufacturers. Much research has been done in the field of physical modeling of the system, but in this work a linear adaptive time discrete ARX-model is developed and validated.The systems tendency to change its dynamic during usage implies that the model must be adaptive. The developed model proved to be well functioning and shows promising conditions for the MPC design.
Leder kritisk publicitet till kritisk publicitet?
Academic research indicates that critical publicity can have a detrimental effect on brand attitudes. The negative effects have been showed to be buffered by cognitive bias elicited by strong favourable attitudes, commitment, brand certainty and brand identification. It has been proposed that the influence of such bias in a news reporting context should be studied, something that also is interesting from a brand perspective. The study therefore investigated whether a well-publicised scandal in one period can lead to increased critical publicity in the coming periods. A case study of Swedish grocery chain ICA was conducted.
TRADITIONSPRINCIPEN INOM SVENSK RÄTT : En jämförelse med avtalsprincipen
In organizations today Corporate Social Responsibility (CSR) is becoming a common means to try to gain legitimacy and credibility for their business. A successful CSR strategy has the potential to generate positive outcomes for a company and reaching out to stakeholders about the corporation?s contribution in the field is an important part of the work. In this study I examine how the employees at Max Hamburgare receive the corporation?s efforts within sustainability, how it is perceived and what this means to the employees.
Resursrelaterad informationshantering i uthyrningsverksamheter : En studie av verksamhetsstödjande IT-system och identifikationsteknologier
The management of assets in organisations today can be a challenging task and optimising their usage is critical to ensure maximum profit. For rental businesses offering tangible products efficient management of movable assets are an essential part of the business strategy. The main purpose of this study is to investigate how asset management and asset information management can be carried out in rental businesses and in what ways information technology can support it. By doing a literature review combined with a case study where three rental businesses and their use of information technology were examined we could identify several important aspects regarding asset information management. The results we have found is that rental businesses with a high degree of digitization in existing asset information management systems are able to rationalize existing work processes, which in some ways changes the roles of employees.
Stegmotorstyrd rotortilt för användning vid mätning av antenners riktningskaraktäristik
Radioantenner tillverkas med olika egenskaper för att passa olika applikatoner. En av dessa egenskaper är antennens riktningskaraktäristik. Hur antennen skall konstrueras för att få den eftersträvade riktningskaraktäristiken kan beräknas. För att kontrollera att antennens faktiska riktningskaraktäristik överensstämmer med den beräknade kan antennens riktningskaraktäristik mätas. Företaget Detectus AB utvecklar idag ett mätsystem för att mäta antenners riktningskaraktäristik och presentera denna i form av ett tredimensionellt polärdiagram.