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4922 Uppsatser om Control technology - Sida 52 av 329
Chinese Remainder Theorem
Chinese Remainder Theorem is used to solving problems in computing, coding and cryptography. In computing we can compute with shorter numbers instead of large numbers and this will make the computing-process faster and easier. In coding it can be used for error-searching and error-regulating.Cryptography means that we can send a coded message and that no one will be able to read it without the decode-key which is based on prim-numbers. I am writing about the history of mathematics and how the number- and decimal number-system is used in Babylon, Egypt, Greece and in China. Abacus was a very important aid to calculate advanced mathematical problems.
Utvärdering av effektstyrningssystemet EnergiDirigent® ur ett miljöperspektiv
Energy Director is a control and measuring system for energy consumption and is part of the product portfolio of E.ON AG for more efficient use of energy, offered to business customers. As of today, the system has only one parameter of control, namely power, and the objective of this essay has been to investigate whether other ones could be added. The emphasis is on the environmental perspective, which is why carbon dioxide has served as an example for this parameter in question.Parallel with the study of Energy Director electricity on the margin, calculations of carbon dioxide equivalents and also the Swedish trade of electricity have all been highlighted. Results indicate that when reductions in energy are made it is endorsed to omit from electricity on the margin rather than some mean distributed electricity, under certain conditions, and in addition the calculations of the reductions should be modified regarding the efficiency of the power stations fuelled by lignite and bituminous coal. Sweden practices trade with the Nordic countries as well as Poland and Germany.
Småskalig elproduktion i urban miljö : Fallstudie av elproducerande system på ett handelscentrum
This thesis investigates if a system for small scale electricity production located in anurban environment can be profitable. The work has been divided up into two parts,one extensive literature study and one case study. The purpose of the literature studywas to investigate the area, resulting in a choice of which technology to be studied indepth in a case study.In the case study a system containing small scale wind turbines and photovoltaicsmounted on Gränby Centrums roof was examined. From data containing wind power,wind direction and total irradiation, possible production from a system weresimulated. Three products of each technology were examined in the simulations.From the simulated production an economic analysis was carried out, this toinvestigate if a system is profitable.
Styrning mot lönsamhet : ur ledningens perspektiv
Uppsatsens syfte avser att beskriva hur ACB Laminat, ur ledningens perspektiv, arbetar med lönsamhetsstyrning. Vidare ska eventuella brister i detta tillvägagångssätt belysas och analyseras, för att förslag till tänkbara åtgärder ska presenteras för företaget.För att nå uppsatsens syfte har en fallstudiebaserad kvalitativ studie använts. En tydlig avgränsning av vad som ingår i undersökningen och vad som ligger utanför finns då uppsatsen enbart avsåg att undersöka ledningens syn på hur företaget arbetar med lönsamhetsstyrning. En kvalitativ ansats har använts för att genom en djupgående intervju belysa en helhet och med hjälp av mina egna tolkningar finna en förståelse i det undersökta.En beskrivning på hur företaget, enligt ledningen arbetar med lönsamhetsstyrning har presenteras. Vidare har undersökningen resulterat i att brister i företagets arbetssätt funnits och förslag till hur de kan avhjälpas har presenterats.
Möjligheter och hinder för att utöka omfattningen av RoHS-direktivet
The RoHS Directive was introduced in order to restrict hazardous substances in Electrical and Electronic Equipment, EEE. It currently restricts the use of six hazardous substances/compounds; cadmium, lead, mercury, hexavalent chromium, PBB, and PBDE. The RoHS Directive currently includes category 1-7 and 10 in the categories of EEE listed in Annex 1A to the WEEE-Directive (Waste of EEE). The aim with the report is to investigate and elucidate prospects and obstacles to increase the scope of RoHS. This report mainly considers the inclusion of product categories 8 (Medical Devices) and 9 (Monitoring and Control Instruments).
Koncern som tillväxtinkubator för småföretag : ? En fallstudie i ett shared service centers möjligheter attstödja entreprenöriella småföretag
???Information Technology is an essential part of the society today, not least in large ???organisations dealing with sensitive information. An example of such an organisation is the Swedish Armed Forces which indeed is in the need of ways to ensure information security in their Information Technology systems. The means which is used is an authorisation and accreditation process.All Information Technology systems go through a life cycle which includes realisation, usage, development and liquidation. In the Swedish Armed Forces the lifecycle is an authorisation process.
Ursprungsbeteckningars betydelse för producenter och konsumenter i Sverige
AbstractThis study focuses on three generations of Kurdish women's view on honor. The study is a qualitative research based on three individual interviews. The aim of this study is to examine how three generations of immigrant women from a culture of honor is influenced over time by the majority culture and its values together with how these women affect each other mutually both consciously and unconsciously within the family. The study is based on two questions: What does"honor" mean to the three generations of women who are Muslim and Kurdish? Did these three generations of women?s idea of honor change over time as they have lived in Sweden? Results of this study have shown that the concept of honor has its focus on the woman's body, sexuality and chastity.
Smakar orden vin? : En studie om vad som styr valet av vin
AbstractThis study focuses on three generations of Kurdish women's view on honor. The study is a qualitative research based on three individual interviews. The aim of this study is to examine how three generations of immigrant women from a culture of honor is influenced over time by the majority culture and its values together with how these women affect each other mutually both consciously and unconsciously within the family. The study is based on two questions: What does"honor" mean to the three generations of women who are Muslim and Kurdish? Did these three generations of women?s idea of honor change over time as they have lived in Sweden? Results of this study have shown that the concept of honor has its focus on the woman's body, sexuality and chastity.
Effekt av utfodring och motion för utveckling av diabetes mellitus hos gråhund och jämthund. :
This study is a follow up of a pilot study made 2004, that evaluated feeding, exercise and weight as possible risk factors for developing any kind of diabetes in dogs. We have selected our material for a certain kind of DM that exists among Norwegian and Swedish elkhounds. These breeds are among the most common breeds affected by diabetes and this kind of DM almost exclusively affects intact bitches.
We performed a case- control study where the owners were interviewed over the phone. The owners of a total of 48 case dogs and 58 control dogs were contacted. The questions for the cases focused on the time before the diagnosis and the questions for the control dogs focused on the dog´s adult life.
AIS i havets och tankens strömmar : En etnografisk studie av nautikers användning av transpondersystemet AIS
An ethnographic study loosely informed by the theoretical framework of distributed cognition was carried out in order to describe how mariners have adopted the Automatic Identification System (AIS) in their work practice, or"made the technology their own". AIS is a transponder-based identification and communication system that allows ships to automatically identify and track each other. In addition to facilitating the identification and tracking of ships, objectives behind the introduction of AIS are to"simplify informational exchange", and"provide additional information to assist situation awareness". Participant observation and interviews were made at four different ships, as well as at two shore stations. A focus group was also held at a maritime conference.
Testdriven utveckling
I programmeringsvärlden har en ren, enkel och testbar kod en stor betydelse. Detta examensarbete avslöjar ett nytt koncept vilket kanske är den viktigaste upptäckten inom metodområdet på senare tid, så kallade Testdriven utveckling (TDD). Testdriven utveckling är ett sätt att utveckla mjukvara och det som utmärker den är att man först skriver ett test som inte ska fungera (röd fas), sedan skriver man en kod, så enkelt som möjligt, som gör att testet ska fungera (grön fas) och till slut ska man våga göra förändringar även om koden fungerar, om man är inte riktigt nöjd eller om man helt enkelt vill optimera sin kod (omstrukturera fas). Syftet med studien var att utvärdera vilka fördelarna och eventuella nackdelarna är med den här typen av mjukvaruutveckling, att motivera varför det är lämpligt att välja den och att visa hur man gör med hjälp av Java, JUnit och Eclipse. Material som användes i studien insamlades genom litteratursökningen och intervjuer.
V?ld i ungas parrelationer - En kvalitativ studie om professionellas erfarenheter av v?ld i ungas parrelationer
The purpose of this study was to investigate and to bring attention to the phenomenon of violence in young relationships and to highlight the differences between adolescent and adult partner violence. Through semi-structured interviews with three school counsellors and three professionals who work with either adolescents or partner violence, gotten an insight into how they work with partner violence in adolescent relationships. The focus in the interviews was to get their perspective and experience on questions about the differences between adult and adolescent partner violence and the hardships that come with that. I concluded that youth exercise a lot of control and jealousy over each other, and that this has become normalized because of social media and different norms that are developing in the younger generations. It was also found that there are a lot of difficulties in the work with adolescent partner violence since it is hard to identify the expressions of violence in young relationships..
Från föreställningar till relevanta system - Linköpings universitetsbibliotek analyseras med hjälp av Soft Systems Methodology
The background to this thesis is the impact of information technology on libraries and librarywork. If information technology causes changes in the tasks and work of libraries, thenlibrary organisations should also change. It is important to engage and inform the staff if suchchanges are to succeed. This thesis investigates the notions about library tasks and librarywork among eight "middle-managers" at Linkopings universitetsbibliotek.The investigation is based on interviews and then analysed with Soft Systems Methodology(SSM). By identifying the "Weltanschauung" of the staff, the thesis tries to create logicallydesirable and culturally feasible models of systems relevant to the situation at Linkopingsuniversitetsbibliotek.
Ungdomars motivation till att söka arbete : En undersökning av kort- och långtidsarbetslösa ungdomar
Syftet med denna studie är att få kunskap om hur tiden som arbetsslös kan påverka individens motivation som arbetssökande. Den övergripande frågeställningen är om motivationen till att hitta ett jobb skiljer sig mellan kort- och långtidsarbetslösa ungdomar. Motivationen har här undersökts genom att jämföra om kort- och långtidsarbetslösa skiljer sig i upplevd locus of control, self-efficacy, värdet av ett arbete samt upplevda krav och faktisk nedlagd ansträngning. 106st arbetslösa ungdomar, samtliga inskrivna på Arbetsförmedlingen, deltog i enkätundersökningen. Resultatet visade inga signifikanta skillnader mellan kort- och långtidsarbetslösa i motivationen till att hitta ett arbete.
En jämförande studie av Svenskt Vattens och CAC:s syn på HACCP-processen, En utvärdering och ett praktiskt tillämpande av Svenskt Vattens "Handbok för egenkontrollprogram med HACCP"
Denna rapport, En jämförande studie av Svenskt Vattens och CAC:s syn på HACCP-processen, En utvärdering och ett praktiskt tillämpande av Svenskt Vattens Handbok för egenkontrollprogram med HACCP, skriven av Anna Järvegren Meijer (handledd av Kenneth M. Persson, professor vid Teknisk Vattenresurslära, Lunds Tekniska Högskola och Anne Levin, konsult på SWECO VIAK, Malmö) behandlar kvalitetssystemet Hazard Analysis and Critical Control Points (HACCP) och fokus ligger på tillämpning inom beredning och distribution av dricksvatten.Rapporten består av tre delar. I den första redovisas HACCP-processen och de arbetssteg som Codex Alimentarius Commission har tagit som praxis. Här jämförs också Svenskt Vattens syn på HACCP i Handbok för egenkontrollprogram med HACCP med just CAC:s. Det konstateras att skillnader finns då Svenskt Vatten har valt att inte följa CAC:s praxis till punkt och pricka utan utformat arbetsgången annorlunda.Den andra delen av rapporten handlar om hur användarvänlig Svenskt Vattens handbok är i praktiken.