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992 Uppsatser om Redesign circuit board - Sida 3 av 67

Automatiserad konstruktion av analoga förstärkare

The last few decades the development in the field of electronics has been huge. The components performance gets better at the same time as the manufacturing cost decreases. Many of the design moments that have to be done, are done automatically today, but it can get better. Especially for analog circuit design.At Electronic System in Linköpings universitet, research is in progress to develop a tool that can design analog circuits in reasonable time. It means that it has to size the components (transistors, resistances, capacitances etc), so that the circuit can fulfill the performance requirements.

IS/IT som möjliggörare av affärsprocessförändring

Syftet med denna uppsats är att, ur ett processorienterat perspektiv, undersöka hur IS/IT används som möjliggörare av affärsprocessförändring. Vår undersökning baserar sig på ett fallföretags förändring av affärsprocessen lagerhantering. De slutsatser vi kan dra grundar sig på fallföretagets situation och de förändringar som de har gjort. Företaget har som vi ser det genomfört en process-redesign. För att möjliggöra process-redesign har Företaget implementerat ett helintegrerat informationssystem med gemensam databas.

Informationsdesign för ett säkrare användargränssnitt : Redesign av ett virtuellt tangentbord

Syfte: Syftet med detta arbete är att studera användargränssnittet på ICA-lagrets datorterminal i Västerås och ta fram ett nytt designförslag för det virtuella tangentbordet. Detta för att effektivisera det befintliga användargränssnittet och höja säkerheten för de anställda.Metod: För att nå studiens syfte har ett kvalitativt och tolkande angreppssätt använts, men med kvantitativt element. Intervjuer och mätningar har genomförts med sex respondenter respektive åtta testpersoner.Slutsats: Resultatet visade att det befintliga tangentbordet har brister. Min slutsats är att en redesign av ett virtuellt tangentbord kan minska feltryckningar och knapptryckningar, öka skrivhastigheten och påskynda navigeringen. Detta bidrar till att det blir mindre trafikstopp, irritation och stress.

Signalanalys med ATLAS

On Ericsson Ltd in Borås a wireless communication system called MINI-LINK? is produced. In order to sell their product with the best possible quality guaranty, there is a signal processing circuit called ATLAS implemented in the system. This circuit would eventually be useful in the production and for the repairs of the radio units. Our commission was to examine the possibility for this use.

Styrelsesammansättningens påverkan på revisorsarvodet

Introduction:By insight in the company and by monitoring the management, the board has an important function in creating trust in governance of the company. Furthermore, the board reduces the asymmetry of information between the owners and the management, which also is the function of the auditor, by auditing how the board governs the company and the accounting. In case the board does not effectively monitor the management, the auditor has to extend its monitoring, which increases the owners agency costs through the audit fee. The board composition can affect how effectively the board practices the monitoringProblem: How is the audit fee affected by the board composition?Purpose: The purpose of this study is to explain how the board composition affects the audit fee.Method: The study uses a quantitative method, where the data was collected from the annual reports of 112 limited companies listed on the NASDAQ OMX Large and Mid Cap lists on January 2, 2012.

Cirkelträning - en kombination av styrka och kondition

In Sweden the amount of people with obesity has increased with almost 50 % during the past 20 years and is now including 500 000 people. A larger energy intake than energy consumption is today one of the most important cause of overweight and obesity that exist in the world. This requires more knowledge about healthier eating habits combined with moderate intensive exercise, exercise that is simple, effective and amusing. A god solution is a combination of fitness training and strength training, a type of circuit training. It is distinguished by a high intensive work in short periods and with a short break.

Kontinuerlig RFID-detektering för batteridrivna system

This report deals with RFID systems and how to detect nearby tags with the Mifare standard using only a microcontroller and an antenna circuit.The aim was to investigate whether there was any possibility to continuously search for a nearby tag for a system operated with batteries without compromising   the lifespan of the battery. At this time the system would take too long time to wake up and look for a tag to give a satisfactory battery lifespan, which should be done a couple of times every second.The report has two issues, namely:Is it possible to direct the microprocessor to detect and identify a nearby tag after the Mifare standard?What hardware is required for this to be possible?As the research method to provide answers to the above questions an action research was used. This approach has meant that the group worked on information retrieval, examined existing solutions, tested their own solutions and documented the results.The group examined an existing solution that can search for nearby tags with minimal energy consumption. An antenna circuit was built that was connected to the processor.

Undersökning av energibesparande metoder för multiplikator

In this thesis a number of energy saving methods for a multiplier on algorithmic level are investigated. For the investigation a multiplier is constructed in VHDL, after which the circuit's performance is investigated. A number of techniques for reduced power consumption are introduced in the circuit and are then evaluated. The conclusions are that all investigated methods, pipelining, interleaving and voltage scaling, should be maximally made use of in order to minimize the power consumption..

Datainsamlingskort med Compact PCI Express

In this thesis a prototype board for data aqcusition is designed and manufactured. The board is compliant with Compact PCI Express and it can sample an analog signal with two time interleaved ADC:s. Furthermore, the board is also equiped with one FPGA for the possibility of signal processing. The thesis also include a study for investigation what is needed for a total solution for data aqcusition, represention and managing the sampled data with LabView..

An Evaluation of the Corporate Governance System at Smartner Information Systems Ltd -

In order to survive constant economic, environmental and political challenges, it has appeared to become increasingly important for a firm to recognize the significance of corporate governance. In this thesis, the structure of the board at Smartner Ltd will be outlined and the relationship between the board members and the CEO will be clarified. In addition, the aim is to analyze the corporate governance system at Smartner Ltd to be able to outline and clarify the distinct relationship between the CEO and board of directors..

Mätsystem för effektförluster i en högfrekvenstransformator

To measure losses in a transformer with today?s methods is either slow or insecure. There s a new method developed by Alstom that hasn't been actualize in to a test-system and that has been the assignment in this project. The idea is built on a switched system and a CLR- circuit in the resonant frequency. The test-system has a calculated power-loss that make the efficiency to be as high as 99,8% and in reality over 95%.

Styrelsen och samhällsansvaret - En studie om hur styrelsesammansättningen påverkar CSR-prestation i svenska börsbolag

The composition of the board of directors and Corporate Social Responsibility (CSR) are two widely researched subject and discussed by the media. This study aims to examine the impact of the board of directors' composition on CSR performance among the largest companies listed on Nasdaq OMX stock exchange 2008 in Stockholm, Sweden. A linear regression analysis is applied to investigate the relationship and evidence is found that board attributes have an effect on CSR performance. Among these; the size of the board, outside directors and employee representatives all have a positive impact on environmental performance. Furthermore; female, outside directors and employee representatives have a positive impact on social performance.

Corpus Technologica : En religionshistorisk analys av Robert Anton Wilsons version av The Eight Circuit Model of Consciousness i ljuset av den västerländska esoterismen

This is a thesis about The Eight Circuit Model, a modern mind map developed for the purpose of illumination and enlighenment by Dr. Timothy Leary in the 1970s. Later, authors such as Robert Anton Wilson and Antero Alli elaborated upon the idea to make it more wholesome and compatible with other ideas expressing the same basic principle. In short, it is an intellectual abstraction of the evolution of consciousness through a series of eight stages, which Leary called Circuits. By looking at the brain as an evolving bio-computer, with thoughts working as software, upgrading itself through neurological imprints, Learys created a Hero's Journey for the modern age.The thesis tries to analyze this idea, as it is presented in Robert Anton Wilsons Prometheus Rising, through the lens of the discourse category ?Western Esoterism.? A hard-to-define subject but described as ?the dialectic of the hidden and the revealed in the field of religion.?.

Återkoppling av sjöpraktik : Hur sjökaptensstudenter upplever återkoppling av sjöpraktik

Feedback is a tool that can be used to give students the confirmation of their accomplishments , helping them to increase understanding of the results of a performance and to alert students if change is required for future performance. Other studies and reports regarding clinical practice in education has shown that students feel that feedback has good impact on learning and positive effects such as enhanced self-confidence. Onboard training forms a major part of the education at the four-year nautical science education in Kalmar, in four years, one year is spent on board ships. Therefore, the purpose of this study was to find out how students at the four-year nautical science program in Kalmar felt that they receive feedback after completing on board training and how they wish that such feedback would be given. Six students were interviewed, three from grade one and three from grade three.

Konstruktion och byggnation av testfixtur för 10Gbit/s transpondermoduler

This thesis for the Master of Science degree was performed at Solectron Corporation in Norrköping. The background for the thesis was a need to develop and build two test fixtures to automatize testing and adjusting of transmitter modules (TX-fixture) and receiver modules (RX-fixture) which are head devices in DWDM-systems. The basic elements for the test fixtures are: Test board, switch board and DC/DC board. The main function of the test board is to handle communication between the transmitter and receiver modules and supply voltage to these modules. The test board was insufficient and modified with a microprocessor to handle the communication between the PC and the receiver module.

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