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345 Uppsatser om Circuit optimization - Sida 11 av 23

Exekveringsmiljö för Plex-C på JVM

The Ericsson AXE-based systems are programmed using an internally developed language called Plex-C. Plex-C is normally compiled to execute on an Ericsson internal processor architecture. A transition to standard processors is currently in progress. This makes it interesting to examine if Plex-C can be compiled to execute on the JVM, which would make it processor independent. The purpose of the thesis is to examine if parts of the run-time environment of Plex-C can be translated to Java and if this can be done so that sufficient performance is obtained.

Design och implementering av enhandsburen RFID-läsare

Radio frequency identification (RFID) is a versatile wireless technology usedworldwide. The fields of applications are many and its popularity constantlygrows due to smaller in size, better and less expensive components. RFID isused to identify, track or share information about an object using radio waves.This master thesis describes the process of designing and implementing ahandheld UHF RFID reader. The goal was to, based on a UHF RFID-chipdesign a fully functional, small in size and power efficient device. Amicrocontroller provides the user interface and is also used to control theRFID-chip and a Bluetooth device.

So?kmotoroptimering och internetmarknadsfo?ring

So?kmotoroptimering eller SEO (Search Engine Optimization), har blivit enmycket viktig del na?r det ga?ller att profilera sig online. Det som avses medso?kmotoroptimering a?r att go?ra fo?ra?ndringar pa? en webbsida sa? att denplaceras ho?gre upp bland resultaten hos so?kmotorerna, och pa? ett sa?dant sa?ttfa?r en sto?rre exponering. Na?r man fo?rso?ker go?ra fo?ra?ndringar pa? en sida sa?kan man dela in fo?ra?ndringar i ?pa?? och ?utanfo?r? webbsidan, on och off-site.Fo?ra?ndringar ?on-site? betyder dels att man go?r fo?ra?ndringar i html koden ochdels att man fo?rso?ker go?ra sidan sa? anva?ndarva?nlig som mo?jligt.

Nyckelord i sökmotoroptimering ? från framtagning till implementation

Nyckelord används på ett flertal sätt för att nå högre rankning i sökmotorresultaten på webben och många författare inom ämnet beskriver hur viktigt det är att använda rätt nyckelord när man sökop-timerar sin webbplats. I litteraturen om sökmotoroptimering beskrivs och kategoriseras nyckelord på ett flertal sätt. Teori-delen i denna uppsats är tänkt att vara en samlingsplats för information om nyckelord. Detta för att skapa en samlad helhetsbild av nyckelordsprocessen och beskriva de olika kategorierna av nyckelord så att detta finns dokumenterat på ett och samma ställe. I den andra delen av uppsatsen beskrivs en empirisk studie som gjorts för att få reda på om andra manuella metoder än den traditionella brainstormingen kan användas för att ta fram passande nyck-elord till en webbsida. De testade metoderna är slumpordsassociation, negativ idégenerering och 6-3-5. Även brainstorming testades för att jämföras med de andra tre metoderna.

1553-Simulator. In-/uppspelning av databusstrafik med hjälp av FPGA

At Saab Aerospace in Linköping, components for measurement systems to the fighter aircraft JAS 39 Gripen are developed. In this activity you sometimes want to record the traffic transmitted on the data busses that connects different sys-tems. This traffic on the data busses is using the military standard MIL-STD-1553. This project has aimed to create a system for recording and sending 1553-data. The system is used on an ordinary personal computer, equipped with a recon- figurable I/O card that among others has a programmable logic circuit (FPGA).

Beslutstödssystem for investeringar och underhåll i eldistributionssystem

I detta examensarbete har en tillförlitlighetsmetod tagits fram som väger samman kostnadspåverkande faktorer för investeringar och underhåll i eldistributionssystem med kostnader förknippade med avbrott. Syftet med metoden är att möjliggöra för nätplanerare och projektörer att jämföra olika investeringsalternativ för att kunna kostnadseffektivisera investeringarna i eldistributionssystem. Med tillförlitlighetsanalys kan den förväntade avbrottstiden i systemets uttagspunkter beräknas. Kopplas en kostnad till den förväntade avbrottstiden i uttagspunkterna kan den förväntade avbrottskostnaden för distributionssystemet beräknas. Syftet med simuleringarna har varit att undersöka om det går att minimera den totala kostnaden, investeringskostnader samt förväntade avbrottskostnad, genom slumpvisa investeringar i systemets ledningssektioner. Simuleringarna har genomförts på ett fiktivt mindre system.

Avvikelser i energiprestanda

Calculated and measured energy in residential buildings is going to differ. The reason to this may be due to many factors. In this study there is a study on how these factors affect the energy use in a building. To get an insight in what defines energy, there is first a description of energy supply both worldwide and used in Sweden, followed by a description of the energy balance. In this study energy will be studied in residential buildings only.

Strömkontroll till aktiva magnetlager med noggrann och störningsreducerad strömmätning

There is always a need for more effective ways to store energy in order to reduce the human impact on the environment. One step on the way can be the use of flywheels as kinetic energy storage devices. Low frictional losses are essential for a flywheel to be effective. To minimize these losses active magnetic bearings (AMB) can be used to keep the shaft centered instead of the more conventional ball-bearings. AMBs use actuators and a fast control system that needs correct and noise-free measurement data of the shaft position and the current in the actuators to work properly.This thesis explains the process of constructing power electronics and a current measurement system for active magnetic bearings (AMB).

Sortimentsinriktad avverkning

Forest enterprises have always searched for ways to improve efficiency. For the past few years there has been an emphasis on stock-keeping levels. Increased demand for fresh round timber and the need to decrease the amount of tied-up capital has made the forest industry reduce its inventory levels. This has brought on a higher demand on the timber supply from the forest management districts concerning both delivery in time and assortment output. As a result, the flow of timber has fluctuated a lot with serious consequence for the timber supply during 1994.

Tillverkningsanpassning av produkt för kostnadsreducering : Nya tillverkningsmetoder och verktygsparametrar

This thesis describes redesign and adaption of a products housing. In order to make it more economical to produce at a lower production volume. The thesis is based upon a prototype that a previous student developed for injection moulding. The goal is to find alternative manufacturing methods, but also to identify parameters that affect the cost of the injection moulding tool.The housing must be tough in order to protect the circuit board inside. But at the same time it must allow sound, light an electrical communication to pass through.

Känd från radio: En studie om medial förvirring

Many media buyers annually spend money on advertising which will not be of benefit to their own brand; the fact that consumers confuse from which brand they have heard or seen commercials, comes as news to nobody. The phenomenon of media confusion has however earned much less attention. As a greater part of the total marketing budget is being spent on the media investments, on behalf of the actual advertising production, the more interesting it turns out to maximize the effects of the media expenses. The search for optimization is somewhat practised today by brand managers who are daringly adding a few more media channels to support their TV-campaigns. Buying ad space in TV is nevertheless much more expensive than the radio equivalent.

Rekursiv greyboxidentifiering av drivsystem i industrirobot.

In modern industrial robots the components in the transmission contain nonlinearities. These nonlinearities need to be to estimated either for better control or to use the parameters for diagnosis of the system. There is a lot of work done within system identification and mainly within the field of iterative parameter estimation.This thesis considers recursive grey-box identification for a nonlinear model of the transmission in an industrial robot. The nonlinearities that are identified are friction, spring stiffnes, hysteresis and backlash. These nonlinearities are a part of the models that are presented in this thesis.

Digital marknadsföring : framväxten av nya verktyg för marknadsföring

Syfte Syftet med arbetet a?r att so?ka fo?rsta?else fo?r utvecklingen fra?n traditionell till digitalmarknadsfo?ring samt att analysera hur fo?retag praktiskt arbetar med detta.Studien anva?nder en kvalitativ metod och data har inha?mtats fra?n ba?de prima?ra och sekunda?ra ka?llor. Empirin har samlats in genom 10 intervjuer, vilket har analyserats med hja?lp av teori och det har sedan lett till studiens slutsatser.Studien visar varfo?r det finns en o?verga?ng fra?n traditionella marknadsfo?ringsmetoder till digitala marknadsfo?ringsmetoder, hur de kompletterar varandra och vilka verktyg som fra?mst anva?nds av fo?retagen i studien.Fo?rslag till fortsattforskning är Facebook-annonsering, ma?tinstrument, SEO och Web 3.0. Dessa termer ga?r att arbeta vidare med och det a?r na?got som va?r studie har pa?visat vara viktigt.I va?r studie bidrar vi till en fo?rsta?else av va?gen fra?n de traditionella marknadsfo?ringsmetoderna till de digitala marknadsfo?ringsmetoderna.

Solcellsdrivning av distribuerade inbyggda system

The high level of energy consumption that the industrialised countries have reached and thepollution that this brings has long been a cause for analysis and debate, development and usageof so called renewable energy sources is therefore more important than ever. The energy in theelectromagnetic radiation from the sun is an interesting alternative. One way of harvesting thisenergy is by using solar cells, devices that generate DC current when exposed to electromagneticradiation.The goal of this master?s thesis was to design a solar powered power supply to Syntronic AB?sMidrange platform. The envisioned application is a stand-alone distributed embedded system,for example a node-based temperature monitoring system.

Utveckling av takra?cken fo?r sla?pvagnar

This report is a bachelor thesis work in the field of product development and design. The assignment has been to develop a solution for roof racks, normally used for cars, to fit on the open trailer models FS1425 and Alugance. The project was implemented by Johan Andersson and Victor Karlsson, students at the Mechanical Engineering program with a focus on product development and design at Jo?nko?ping?s school of Engineering, in spring 2012.The client wants to use transport solutions in the same way as roof racks on cars. The user of such a product is assumed to desire simplicity, safety and an attractive design with an appealing price, which has been a challenge during the thesis work.Pre-studies have been conducted to examine the potential competitors and gain knowledge in the research area.

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