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1027 Uppsatser om Electric Engineering - Sida 45 av 69
Smarta lokala energisystem, Vision-Teknik-Tillämpning
The energy sector is facing an impending paradigm shift. Today?s technology enables the end-user to generate their own energy locally at home. Furthermore, recently developed storage technologies make it possible to balance energy demand with stored energy and integrate district heating with the local power grid. This means that in the future heat and electric power will interact and energy flows is converted over energy boundaries.
Anpassning och optimering av checkprogram för AW139
Presently Sjöfartsverket do their maintenance according to a standard program, which means that every maintenance task will be done when the task limit occurs. This leads to a very long downtime for the aircraft in some occasions and very short downtime in others. The goal with this work is to reach a higher regularity of the aircraft operation. To reach a higher regularity for the operational needs, this work will present a hypothetic better maintenance concept for Swedish Maritime Administration. The concept is based on equalized maintenance structure, which means that every maintenance occasions are meant to take the same time to perform.
Integrerad arbetsprocess mellan projektör och konstruktör, För effektiv och kvalitetssäker projektering med Tekla Structures och SAP2000
The purpose of this work is to design and construct a device able to measure the mechanical attrition of oxygen carrier particles. Those particles are used in chemical looping combustion and in the present situation there is a lack of knowledge in how the attrition process work and in which extension. To find already tested solutions trying to answering this problem a literature study wascarried out and the best solution found was the so called Grace-Davison Jet-Cup method. This method is supposed to emulate the attrition caused by a cyclone separator and its advantages are that it is possible to use small test amounts, 5-10 g, and a thirty minutes long test will be enough to acquire useable results. An device was designed based on the Jet-Cup method with some slight modifications.
Bioelectromagnetics for improved crop productivity : an introductory review with pilot study of pre-sowing treatment of tomato
Various electromagnetic (EM) treatments has been investigated for their potential in improving crop productivity over the past century. There is today an increasing amount of scientists advocating EM treatments as an organically compatible method for improving plant
growth and yield. However, failure to produce repeatable effects and defining causal mechanisms has made it a study of much controversy and debate. The subject requires indepth
interdisciplinary knowledge, making it inaccessible for the majority of biologists, horticulturists and growers. In this combined literature review and pilot study, these issues are addressed by providing a comprehensive introductory review of the topic plant
bioelectromagnetics and its potential horticultural usability.
Framtagning av en informationssäkerhetspolicy
This report was made for the company HordaGruppen AB to investigate how information security was handled. This report fits in the Master program of Internet Technology at School of Engineering in Jönköping University in Sweden.The question at issue was how you protect your information against different threats. One question was how to make an information security policy and which guidelines you can follow in the Swedish Standard, SS-ISO/IEC 17799:2000.Another question was to investigate the information sources at the company and which threats there are against it.The work begins with a presentation about information security for the chief of information and the chief of quality in the company. The next thing was to do a survey of as thing are at present with a tool from Länsteknikcentrum called ?Infosäkpulsen?.
Brottsförebyggande arbete i Karlskrona Kommun
Theft without break-ins has increased significantly in the last year of
swimming, sports and leisure facilities in Karlskrona, more precisely 60%.
Vandalism in the shape of graffiti is another common crime.
The solutions are divided into social and situational crime prevention. Social
crime prevention engage in actions that are based on social causes of crime
rather than the opposite situational crime prevention, which instead assumes
that discourage with the help of technical solutions and has as primary
objective to hinder accessibility for example theft friendly goods.
The main purpose of this work is to come up with solutions to prevent these
crimes, while also being cost-effective and realistic to implement. The work is
important in that it creates safety awareness and promotes a healthy safety
culture. Moreover, the future goal is to lower these statistics.
The goal of the work is in addition to developing our knowledge of crime
subject, was also to provide help and solutions for our clients.
Design av ett grafiskt användargränssnitt-ett befintligt system i förändring för användarnas bästa
Detta kandidatarbetet är utfört på ett bolag som verkar i
telekommunikationsbranschen. Operatörerna på kundtjänst arbetar med att ta emot
samtal från Telekombolagets kunder, hjälpa dem med att lösa problem och ge tips
och råd. En viktig del av arbetet är att operatörerna gör en analys av kunden
för att kunna ge bästa möjliga råd.
Rapporten behandlar hur en del av ett textbaserat program kan omarbetas till en
grafisk applikation. Etnografiska metoder, i form av observationsstudier och
intervjuer, och designtekniker, i form av mockup- och prototypmöten, har
använts tillsammans med användarna av programmet.
Passivhus - studie om miljövänliga och energisnåla bostäder
Detta examensarbete syftar till att försöka redogöra för möjligheten att minska energiförbrukningen för bostäder i Sverige. Idag står bostadssektorn för cirka 40 % av landets totala energianvändning. En satsning på lågenergihus såsom passivhus kan därför komma att ha stor betydelse för Sveriges strävan mot en hållbar utveckling när det gäller energianvändningen. Det är inte bara miljön som gynnas av energieffektiva satsningar utan även den boendes egen ekonomi. Detta eftersom framtidens energipriser sannolikt kommer att vara kraftigt stigande.
Hantering av skadade styrstavar
The thesis was performed at Forsmarks Kraftgrupp AB in the department ofmechanical engineering, FTCM. Forsmark nuclear power plant has had problems with cracks in some of the controlrods which are placed in the reactor at Forsmark 3. To investigate the cause of this,material samples were taken from five of the damaged control rods. This sampling ofthe rods resulted too short rods to be transported in the shipping container to theinterim storage facility for used nuclear fuel in Oskarshamn. Control rods are crucial components in a nuclear reactor, regulating the reactoreffect by blocking or unblocking fuel rods. Control rods which have been in thereactor are always handled under water in order to protect against the radiation theyemit. The task was to design a control rod adapter that extends the control rod sotransport can be performed from Forsmark. The goal of the work was a complete setof blueprints so the control rod adapter can be manufactured and mounted on theshort control rods and then be transported to the interim storage facility. The work began with mapping of how control rods normally being handled from thereactor to the interim storage facility.
FE-modellering av hjullast på sandwichpanel
This bachelor thesis in mechanical engineering was performed during the spring2015 in collaboration with Composite Consulting Group in Laholm. TheComposites Consulting Group works mainly with design and details of differentcomposite projects, their main area is FE-calculations, 3D-modelling andmechanical tests with composite materials.The aim of this bachelor thesis was to simplify the calculation process of solidmechanics for sandwich panels by simulation with computer software. The goalwas to decrease the time for the design and calculation process of the constructionand the cost of the practical tests. Our task was to build a static three dimensionalmodel with the computer software Abaqus, where the result should correspondwith the practical pressure tests in laboratory.The project started with collection of material data from Composites ConsultingGroup and by learning the software Abaqus, simultaneously a specification wasdeveloped in corporation with the company. Later on, a static wheel pressuremodel in the software Abaqus was produced which simulated the behavior of thesandwich panel during static wheel-pressure by a pallet truck.
Minimizing acts of violence through telephone-linked care: an
automated telephone system for outpatients in forensic
psychiatric care
Achievements within the fields of computer- and telecommunication technology have led to a revolution when it comes to managing information. These achievements have made it possible to offer new services in healthcare, especially in telemedicine. New technology has become a complement to traditional care, thus partly compensating for insufficient time and resources. Telephone Linked Care (TLC) is a telecommunication technology that enables automated dialog counselling and monitoring of patients in their homes. During the last two decades numerous randomized controlled studies with TLC have demonstrated improvement among outpatients with chronic and health behaviour disorders.
Design av ett grafiskt användargränssnitt - Ett befintligt system i förändring för användarnas bästa
Detta kandidatarbetet är utfört på ett bolag som verkar i
telekommunikationsbranschen. Operatörerna på kundtjänst arbetar med att ta emot
samtal från Telekombolagets kunder, hjälpa dem med att lösa problem och ge tips
och råd. En viktig del av arbetet är att operatörerna gör en analys av kunden
för att kunna ge bästa möjliga råd.
Rapporten behandlar hur en del av ett textbaserat program kan omarbetas till en
grafisk applikation. Etnografiska metoder, i form av observationsstudier och
intervjuer, och designtekniker, i form av mockup- och prototypmöten, har
använts tillsammans med användarna av programmet.
Glava glasbruk : En undersökning av föroreningar i mark- och vatten samt ansvaret för dessa enligt miljöbalken
The Swedish industrial society has left several areas with contaminated soil and water which today is of danger for the environment and human health. One of these areas with contaminated soil and water is the region where the former Glava glassworks operated during 1859 to 1939. The main object in this study has been to study the responsibility for the contaminations according to the Environmental Code. The method used is a qualitative content analysis of relevant literature to answer the following questions:What types of contaminations can be found in the area of Glava glasswork and what health issues can these cause?What kind of activity has been conducted in the area that have caused the contaminations in soil and water?According to law, what are the responsibilities for the contaminations in soil and water at Glava glassworks?The contamination in the region has been confirmed to originate from the glasswork due to the environmental engineering survey made in the area in 2009.
Användbarhetsutvärdering av en grafiskt visualiserad patientjournal
First-year students at Linköping University have developed a prototype that graphically visualizes a medical record in a new way. The customer of that project was the Department of Biomedical Engineering at Linköping University. They now want a usability evaluation to be performed of the prototype. The prototype is to be used by employees in the public health care and is supposed to be used on a small portable unit with a multi-touch interface. For this reason the prototype will be used as a complement to existing systems when the users work near the patients.
Alternativ uppvärmning av reningsverket på Utö - En studie av energibesparingsmöjligheterna i syfte att minska uppvärmningskostnaderna
The projects objective is to find an alternative method of heating (the current method being via electric heating) the sewage treatment plant on the island Utö in Stockholm?s archipelago in order to reduce the energy consumption and ultimately the cost for heating the plant. The project is given by ?Skärgårdsstiftelsen? (The Archipelago Foundation) and is a part of the larger EU-project ?Green Islands?.A model for the plants total heating demand is established in order to get a good perception of how much money can be saved using alternative heating methods. The heating demand model gives an annual heating demand of approximately 32 500 kWh and a maximum heating power demand of around 24,7 kW.