Uppsatser om electron

667 uppsatser · sida 15 av 45

Doktorander i fysik söker information

en intervjuundersökning av forskarens första tid som informationssökare

D-uppsats · Högskolan i Borås

… on formal sources and controlled material. The difficulties experienced during electronic searches were however less than expected. In the students' opinions information search and management would be improved if all published material was converted into electronically …

En undersökning av EDI i små och medelstora företag

Kandidatuppsats · Högskolan i Skövde

EDI (Electronic Data Interchange) är en av de olika tekniker och metoder som finns för att etablera e-handel. Trots att tekniken erbjuder en rad fördelar, exempelvis automatisk överföring av information utan mänsklig inblandning, är utbredningen inte så stor bland små och …

EDI för små till medelstora företag

Kandidatuppsats · Högskolan i Skövde

… eller post vilket gör att tiden för att genomföra en affär väldigt lång. Electronic Data Interchange (EDI) är en teknik som låter företag göra affärer på ett elektroniskt och mer eller mindre automatiserat sätt vilket gör att tiden för att genomföra en affär minskar. EDI har …

Överföring av digital video via FireWire

Examensarbete, grundnivå · Linköpings universitet

Transmission of digital signals is today more frequently used than transmission of analog signals. One reason for this is that a digital signal is less sensitive to noise than an analog, another reason is that almost all signals today are handled in a digital format. This thesis …

Lågoffsetkomparator

Examensarbete, grundnivå · Linköpings universitet

Detecting small signals with a comparator demands that the total voltage offset is lower than the actual signal. The total offset includes the voltage offset in the comparator and the voltage offset that is created by the offset currents that flows thru the load at the …

Modellering och simulering av hovrande helikopter

Examensarbete, grundnivå · Linköpings universitet

At the department of Electronic Warfare Assessments at the Swedish Defence Research Agency in Linköping one of the activities is modelling and simulation of the duel between a robot and a target. The aim with this Master's thesis is to develop a simulation model of an hovering …

A Collaborative VolumeViewer

Examensarbete, grundnivå · Linköpings universitet

… used as the development basis. The application components can be inserted into electronic documents that allow embedded controls such as web documents or Microsoft Word or PowerPoint documents. Instead of displaying results as static images, a SMARTDOC component provides the …

Konstruktion av förstärkare och insamplingssteg till en PSAADC i 0.25 um CMOS

Examensarbete, grundnivå · Linköpings universitet

The aim and goal of this work has been to design and implement a voltage reference network for a 12-bit PSAADC, Parallell Successive Analog to Digital Converter. A chip containing the design has been sent away for fabrication. Because of the long processing time, no measurement …

SmartMedia-controller på chip

Examensarbete, grundnivå · Linköpings universitet

This report deals with the design of a controller for SmartMedia? flash memory cards, based on a hardware description found in the SmartMedia? Interface Library - SMIL. The design was made on logic gate level, using standard cells in OrCAD Capture. After simulation of the design …

Design of a Direct-conversion Radio Receiver Front-end in CMOS Technology

Examensarbete, grundnivå · Linköpings universitet

In this Master's thesis, a direct-conversion receiver front-end has been designed in a 0.18um CMOS technology. Direct-conversion receivers (DCR) have obvious advantages over the heterodyne counterpart. Since the intermediate frequency (IF) is zero, the problem of image is …

Design and Analysis of an All-optical Free-space Communication Link

Examensarbete, grundnivå · Linköpings universitet

Free Space Optics (FSO) has received a great deal of attention lately both in the military and civilian information society due to its potentially high capacity, rapid deployment, portability and high security from deception and jamming. The main issue is that severe weather can …

Scalable Services over DAB and DVB-T from a Receiver Point of View

Examensarbete, grundnivå · Linköpings universitet

… Digital TV and radio can offer additional services such as e-commerce, electronic program guides and content synchronized to the TV and radio shows. If these services are to be received by several receiving terminals with different properties, the services must be adapted to the …

Kombinerad DSP- och FPGA-lösning för en bildbehandlingsapplikation

Examensarbete, grundnivå · Linköpings universitet

This Master's Thesis describes the design of a new system where a digital signal processor has been added to an existing imaging system consisting of field programmable gate arrays. The new system will offer a higher degree of flexibility by considerably shortening the design …

Implementering av ROM med låg effektförbrukning

Examensarbete, grundnivå · Linköpings universitet

Detta examensarbetet har gått ut på att konstruera ROM-minnen med liten effektförbrukning.Genom att vi undersökt olika geometriska strukturer i form av kolumnuppdelning så har simuleringsresultaten visat god geometri med liten strömförbrukning. Därefter har minnesarean delats in …