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2318 Uppsatser om Nuclear technology - Sida 35 av 155
Ersättning av Ringhals 3 med ett biobränslekraftverk
This study deals with the technical and economic feasibility of replacing the nuclear power plant reactor Ringhals 3 with a biofuel power plant. A technical investigation has been executed to determine which of the systems and components that could be reused and which ones would need to be replaced. The investment costs of the reconstruction have also been estimated. The cost of the electricity production has been calculated as well as the emissions of the new biofuel power plant. Based on the established rate of return, the lowest average spot price of electricity that makes the investment profitable has been calculated.
Applikationsintegrering : en analys av metoder och teknik
Abstract In the contemporary world of information technology you find a multitude of applications and systems covering a broad spectrum of areas of need in different companies. One effect of this multitude of programs is the difficulty to make them exchange information with each other or to collaborate, since they are developed by different programming languages for different platforms, with different standards and different data formats. Our aim with this work is to describe how it is possible to tie these programs together to make them actually communicate with each other in order to exchange information, share their native methods and also to become a part of the overall business processes. In this integration task you will, among other things, find different levels of application integration such as data level, method level, application interface level and user interface level integration. Application integration also involves hardware components, called middleware, that facilitate the physical connection between applications.
Sensorfusion för undervattensrobot i kärnteknisk miljö med Kalman filtrering
WesDyne TRC AB is a fully owned subsidiary of the global WestinghouseElectric Corporation. WesDyne is a world leader in non-invasive methods for theinspection of nuclear power plants. One of the inspection platforms used to scanfor defects in and around the welds in the reactor vessel is called the T-crawler.The T-crawler operates under water in a radioactive environment by stepping onthe vessel (reactor tank) inner wall using suction cups. The environment is harshand many traditional positioning sensors are not suitable for implementation. Thisthesis investigates the possibility to use a gyroscope and a pressure sensor tocreate an alternative and independent positioning system.
Analys av framtidens system för hantering av avloppsvatten och matavfall i Eskilstuna
Wastewater treatment is increasingly controlled by the Swedish environmental quality objectives, adopted by the Swedish parliament. There is a need for a sewage system that can fulfill stringent requirements concerning the environment, recycling and resource use and hygiene. Additional environmental aspects in recent years are the impact of climate change, new knowledge about the effects of pharmaceuticals in water, the need for improved wastewater treatment and increased recycling of nutrients to agriculture. This report has, from a future scenario of the year 2050, analyzed seven different systems for wastewater treatment and treatment of compostable biowaste from households in Eskilstuna. A future scenario was chosen based on that within a forty year period new challenges may arise which can result in higher demands on sewage treatment than those we see today. Another reason why the future scenario was established is that changes in wastewater treatment systems are slow to establish. The analysis is mainly focused on the economical aspects but environmental aspects such as emissions to receiving waters and potential recycling of plant nutrients has also been evaluated briefly.
Skolan i universum - att förklara det ofattbara : Astronomiundervisningen i skolan på 1900-talet
This is a study in how astronomy has been taught and is being taught in Swedish schools from 1905 to this date with an emphasis on the latest 30 years. It concerns the regulations and methodical recommendations/curricula for Swedish junior high school/Swedish Comprehensive school for the years 1905, 1933, 1955, 1958, 1962, 1969, 1980 and 1994. The matter of integrating astronomy with other subjects and different methodical approaches is also considered. The problem with textbooks written only for one subject when the teacher tries to integrate subjects is emphasised.Physics textbook analysis shows that astronomy teaching has over the years developed, from being based on observations, to become more and more theoretical. It also shows that the amount of practical exercises has been fairly constant in physics textbooks during the seventies end eighties but now in the nineties varies a lot from textbook to textbook. The amount of liberty the textbook gives the pupil in finding knowledge and answers himself in the practical parts of astronomy was at its lowest during the seventies.
Relevans och svårigheter i användandet av vardagsteknik i dagliga aktiviteter hos yngre vuxna
Vi lever i ett informations- och teknologisamhälle och i våra dagliga aktiviteter omges vi av vardagsteknik (VT) på olika sätt och i olika svårighetsgrad. Denna VT kan innefatta allt från brödrost till mer avancerade datasystem och tjänster. Tidigare studier visar att personer med kognitiv funktionsnedsättning kan uppleva svårigheter i användandet av VT i sina dagliga aktiviteter. Dock finns inga studier som visar relevans och svårigheter med VT för yngre vuxna utan kognitiv funktionsnedsättning. Därför vill vi med den här studien beskriva relevans och svårigheter i användandet av VT hos yngre vuxna utan kända kognitiva funktionsnedsättningar.
En IT-forensikers kamp mot IT-brottsligheten : En studie om arbetssätt hos polisens IT-forensiker
The use of information technology (IT) is exploding. Today, it is in our daily routines to use some kind of information technology. The increase of users increases the number of cyber crimes, ie, crimes that in some way involve IT. As the cyber crimes grow in numbers, the workload for technical investigator increases, these are called digital crime investigators. The thesis is about how police digital crime investigators work and what problems they may encounter during an investigation.
Militärt stöd till samhället
This report covers a description of the military support attainable to society and made available by the Swedish Armed Forces, in the event of a crisis. The main focal point is the needs of the rescue services..
Samtiden och framtiden: En studie av mottagandet av två svenska dystopier och deras samtidsförankring
The aim of this Masters thesis is to deepen the understanding of how society affects literary criticism by studying the reception of two Swedish dystopian novels and their contemporary anchorage. The questions that we answer here are concerned with how critics have drawn parallels between the novels and events occurring in the contemporary society, and how the critics outlook on the future are connected to ideas about the future in the novels. The first novel, Kallocain 1940 by Karin Boye has been interpreted as a critical statement directed towards totalitarian ideologies. The second novel, After the Flood 1982 by P C Jersild, has been seen as a warning against nuclear warfare. This qualitative study is based on 41 reviews from Swedish daily press.
Lärare, digitalteknik och motivation : En studie om vilka aspekter som påverkar lärares motivation att använda digitalteknik i undervisningen
Studiens syfte är att utveckla kunskap om lärares motivation till användning av digitalteknik i undervisningen. Ämnet belyses genom frågeställningarna; Vilken förståelse har lärare för den digitala teknikens roll i undervisningen? och Vilka aspekter påverkar lärarnas motivation till användning av digitalteknik i undervisningen? I studien deltar fem verksamma lärare som undervisar i årskurs 1-6. Utifrån semistrukturerade kvalitativa intervjuer beskrivs och kategoriseras aspekter som påverkar lärarnas motivation till att använda digitalteknik i undervisningen. Studien visar att tvetydighet präglar lärarnas förståelse för den digitala tekniken. Lärarna uppvisar en förståelse för teknikens möjligheter och utnyttjar den för personlig utveckling och som informationsbank.Det framkommer dock inte lika frekvent att den digitala tekniken används i undervisningssituationen. Det är flera aspekter som påverkar lärarnas drivkraft att använda digitalteknik i undervisningen.
Miljöarbete inom den civila luftfarten
The main environmental problem for aviation is the great amount of exhaust gases, mainly nitrogen oxides, carbon monoxide, carbon dioxide and hydrocarbons - mostly "greenhouse gases" leading to climate changes. I decided to sort out what is being done to decrease these problems and what regulations there are concerning air pollution by the means of searching the internet and using publications from aviation authorities for current figures. I chose to scrutinize authorities on political, authority and company level, resulting in summarizing the work of UN and EU respectively, ICAO (International Civil Aviation Organization), JAA (Joint Aviation Authorities) and LFV (Swedish Civil Aviation Authority), and finally SAS, representing the airline companies. Conclusion that I have drawn are thatthere are regulations for air pollution, written down in ICAO's Annex 16, that are to be followed. Secondly, LFV are environmentally controlling their nineteen airports and since economy is an important reason for not giving priority to environmental issues in aviation emission charge and noise charge are added to the landing fees.
Könsselektering av spermier från lantbrukets husdjur
Millions of preselected progeny have been born since the development of The Beltsville Sperm Sexing Technology 1986. The method is based on flow cytometry and sorting is done on the basis of DNA difference of the X- and Y-chromosomes. Preselection of progeny provides an opportunity to obtain genetic gain and increased production as well as increased animal welfare and decreased environmental impact. However, the method is associated with low fertility, high costs and uncertainty whether the sorting process contributes to DNA damage and thereby results in genetically impaired progeny. Today, sex sorted sperm is only commercially available in the bovine industry, due to the fact that bull sperm is more suitable for selection than sperm from other species.
Datahantering vid dynamiska webbteknologier : PHP eller ASP?
The last couple of years the use of Internet has changed in the way that the web pages can be affected of the person that uses them. Because of this dynamic Internet technology has emerged that makes it possible for a web page to receive information from a web browser. This information can then be used to affect the appearance of the page. PHP and ASP are two dynamic Internet technologies. They are integrated in HTML and are executed on the web server.
Konstruktion av snabbkoppling för elektropolering.
Lansen Technology develops and sells alarm systems. The communication between the system devices are wireless. The radio protocol used by the system is developed by Lansen with the purpose to be energy efficient. The alarm systems target groups are individuals, businesses and government agencies. The current system is installed, configured and controlled from a control panel for all audiences.
Dark Side of Wonderland - en kort 2D-animation med syfte att väcka intresse för en online serietidning
My objective for this project was to create a short but thrilling 2D-animation
intended as promotion for an online comic book. The purpose of the project was
to learn more about animation and graphics, to further my artistic skills and
to learn how to work in Adobe After Effects. I also wanted to learn more about
scheduling, project methods and how to handle stress. During the ten weeks of
the project I have created the story, the storyboard, the character design, the
backgrounds and the animation. The voice over was recorded with the help of a
fellow student who also made the music and the sound effects.