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2605 Uppsatser om Wire and Heating Technology - Sida 36 av 174
Kärnkraft - säkerhetsrisk eller energitillgång? : Energipolitisk opinionsbildning inför folkomröstningen 1980
Uppsatsen syftar till att analysera politiska aktörers agerande för att framställa sin hållning inför folkomröstningen om kärnraften 1980 som trovärdig och rationell. Studien undersöker historiska källor i form av informationstätt opinionsmaterial samt statliga utredningar och propositioner med anknytning till folkomröstningen. Undersökningen är baserad på den teoribildning inom teknik- och vetenskapssociologi som kallas science and technology studies ? STS. Det analytiska verktyg som källmaterialet analyseras utifrån är begreppet energisäkerhet.
Analys av PWM-mönster i Matlab
One of ABB Power Systems´s business areas is HVDC (High Voltage Direct Current) technology. HVDC is used for transmissions for both short and long distances. One of Power Systems?s products is called HVDC Light. HVDC Light is a relatively new technology for power transmission, but have before only been used for motor drives applications.
IKT verktyg ? befrielse eller belastning? : Elever i behov av särskilt stöd och deras uppfattningar om IKT verktyg i lärandet.
The aim of this study was to describe and analyse the perceptions that ten 12-15 yearold pupils with special educational need, who had been assigned a personal computer, have about Information and Communication Technology (ICT) in the learning process. Data was collected by personal interviews and observations. Sociocultural perspective and phenomenographic research approach were used as theoretical and methodological frameworks in analyzing and understanding the result. The major conclusions were that most respondents perceived the computer as beneficial assistive technology for learning, but some felt singled out by having a computer to assist in learning. Students had various opportunities to succeed in using their tool depending on e.g.
Variationen i användandet av IT-verktyget Trade : En fallstudie hos NCC
Companies that are facing the global market are put in to new challenges in order to streamline its business. One industry that has realized that changes are necessary is the construction industry, it is an industry witch is far behind the development of introducing information technology-tools systems in there business. It has shown there is a relation between high IT usage and high productivity, which is one of the reasons to why companies in the construction industry should purchase a business system especially for procurement. However, companies that have purchased a business system are facing difficulties in having their employees using it for its purpose. People react differently to changes and that?s why variations in quantities exist for usage of information technology-tools.
Störningsindikation på lågspänningsnät
Föreliggande rapport är avsedd som ett examensarbete i elektroteknik (20p).Syftet med arbetet är att skapa en applikation för att finna störningar pålågspänningsnätet upp till 95kHz. Bakgrunden till arbetet kommer frånenergibolagen som vill kunna skicka datainformation direkt pålågspänningsnätet, detta vill de kunna göra med hastigheter mellan 2k ? 5kHz. Beroende på med vilken hastighet man vill skicka information kan störningar mellan givna frekvenser hindra datatransmissionen, därför är detviktigt att hitta vid vilka frekvenser störningarna uppstår så att lämpligaåtgärder kan vidtas.Grundläggande delar i applikationen är ett oscilloskop för mätning, dator medGPIB- kort för upptagning av data och LabView programvara för hantering avdata. För frekvensanalys kommer Fast Fourier Transform, FFT, att användas,varvid en grundläggande beskrivning kommer att medfölja..
Kaffesump som substrat i biogasanläggningar eller som bränsle i fjärrvärmeverk : en studie av effekter på växthusgasutsläpp och kostnader
Each year, the coffee machines at Ericsson in Kista produce around 100 tons of ground coffee waste.The companies Coor Service Management, Löfbergs Lila and Selecta are all responsible for differentstages in the logistical chain in delivering coffee and, together with Ericsson, they want to increasetheir environmental benefit. The plan is to produce biogas through anaerobic digestion instead ofincinerating the coffee waste in a heating plant. The results are to be presented as different businesscases in which different biogas plants are compared with the reference case (heating plant),comparing costs and environmental impacts.There are two major environmental benefits from producing biogas; reduced carbon dioxideemissions from when fossile fule is replaced by carbon neutral biogas, and reduced emissions fromreturning digestate from the bio reactor to farmland instead of using industrial fertelizer.In order to determine the biogas potential in coffee waste, a couple of properties had to bedetermined in a laboratory. Properties such as the dry substance content, heating value, moisturecontent and ash content. The results show that 100 tons coffee waste could produce around 16 500Nm3 biogas which would contain 163 MWh.The biogas reactor and upgrade plant both need energy gas to function and uses around 14 MWh ofthe produced gas.
The Effects of Technology-Based Self-Service on Grocery Retail : A Swedish Case
Technology based self-service (TBSS) used in supermarket self-scanning checkouts is a relatively new phenomenon in Sweden. Studies on TBSS as a self- checkout device have been formerly carried out but with focus on the customer perspective. The authors therefore saw a challenge in covering the self-scan checkout concept, from a company perspective. The purpose of this research paper is to investigate, through a management perspective, the changes brought about by implementing an innovative TBSS system in Swedish supermarkets, and its effect on the competitiveness of the company. This is done by presenting and linking the theoretical framework and empirical study in the research.
Assessing the Risk of a Disruptive Technology Emergence, a Case Study of Ericsson Mobile Platforms
En sammanfattning av uppsatsen på maximalt 8000 tecken..
Väderövervakning med övervakningssystemet Uni-View
Företaget Radius Control Systems AB sysslar huvudsakligen med utveckling och underhåll av SCADA applikationer. Radius hade önskemål om att kunna visa väderinformation från en väderstation i Radius egna övervakningssystem Uni-View. Detta skulle ske via ABB: s styrsystem AC 800M/ 800xA, med en PM856 processor. Arbetet handlar om att upprätta kommunikation mellan en PLC och väderstation, och från PLC vidare upp till Uni-View. Rapporten behandlar hela arbetsprocessen med början från en prototyp till ett fungerande system.
En studie av IT-miljön och dess användning inom förskolan
The purpose of this study is to examine the usage of IT technology within preschool and study how IT tools are used by preschool staff for administrative as well as pedagogical assignments. Several aspects affects the work preschool staff do with IT which concerns availability to technology, how technology is used and how technology is made available for the children. There are a number of questions linked to these aspects where some examples this study examines are which advantages, disadvantages, obstacles or other limitations that comes with introducing IT? This study also examines how, when and in what contexts IT is being used? Other questions examined are the pedagogue?s general views of IT, competence development and eventual needs of investment? Further on this study examines to some part how children interact with IT during pedagogical activities? The overall objective is to shed light on problems that preschool staff encounter in their daily work and on the basis of identifying important questions at issue that could constitute a basis for further research. The results of this study are based on both a literature review and a field study.
Musiklärares inställning till IKT i sin undervisning : en studie med komparativ ansats mellan Nya Zeeland och Sverige
The aim in this thesis is to study what attitude music teachers in Sweden and New Zealand have towards Information and Communication Technology (ICT) in music education and obtain a better understanding of how their attitudes affect the way they use ICT in their teaching. Another intention is to discuss differences and similarities between the teachers´ preferences regarding this issue in the two different countries, and whether it has any effect on teaching. It's a qualitative study based on interviews with music teachers from both countries. Through the answers we can get an impression about how ICT is used in music education, how the curriculum is interpreted when it comes to use ICT in music education and how the teachers' attitudes towards ICT affect the music education. This thesis shows that teachers are positive towards ICT in music education but the attitude, knowledge and the way of using it differs, due to access to technology and different opinions about what is essential in music and what is pedagogical.
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.
Användbarhet på fass.se
Webbplatsen fass.se är idag anpassad för folk inom vården. Nu vill man göra en ny version av webbplatsen som är anpassad för allmänheten. Detta ställer stora krav på användbarhet. Så länge någonting fungerar som det ska och går precis som man tänkt så tänker man inte på det. Saker och ting kan vara enkla att lära sig och de kan vara effektiva att använda när man har lärt sig det.
Lämplig som pilot? : En uppsats om lämplighetsprövning och rekrytering av piloter.
För att kunna bli pilot i kommersiell luftfart är första steget att utbilda sig. En pilotutbildning måste föregås av en medicinsk undersökning för att garantera en tillräckligt god fysisk hälsa hos den blivande piloten. Många utbildare kräver också att en person som vill utbilda sig till pilot genomgår en psykologisk lämplighetsprövning, i syfte att få en indikation på dennes personliga förutsättningar i övrigt för en lyckad utbildning och karriär inom pilotyrket. När utbildningen är genomförd är piloten redo för att se sig om efter arbete men den senaste tidens allmänna nedgång i flygbranschen har gjort det allt svårare för piloter att få anställning. Detta arbete har syftat till att ge en inblick i bakgrunden till den typ av lämplighetsprövning som genomförs inför utbildning, hur sådana prövningar värderas av arbetsgivare i branschen samt vad som i övrigt enligt arbetsgivare avgör om en pilot är aktuell för anställning..
ISO 14001 : En genomgång av SSAB EMEA Oxelösunds miljöledningssystem
Environmental issues is now taking a growing place in society and to ensure that companies meet public expectations and do their part in working towards a sustainable development, environmental management system is said to be an effective tool (Almgren & Brorson, 2009).This case study has examined a company's environmental management system in order to find strengths and weaknesses within the ISO 14001 system. The work was carried out using interviews, document reviews and analyzes in which the three main concepts control the report ; "daily work", "audit" and "environmental aspects".The results shows that the daily work looks different depending on where you are; in the production or at the office. The audit examined all documents related to the environmental management system and the study showed that the biggest strengths was the commitment and waste handling while areas such as environmental goals and management review needed improvement. As a result of the deficiencies identified, suggestions for improvements was proposed. The investigation of the routine of the environmental aspects showed an incomplete routine where the red wire from identification to evaluation was missing.