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1175 Uppsatser om Requirement engineering. - Sida 50 av 79
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.
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.
Jämförelse av produktionsmetoder vid byggande av gång- och cykeltunnel.
Vi har i denna rapport jämfört produktionsmetoder vid byggande av gång- och cykeltunnel under järnväg. de metoder vi har jämfört är lansering och platsgjutning. Projektet som vi har studerat är byggandet av en gong- och cykeltunnel under järnväg vid Mjölby station. Vid detta projekt lanseras halva tunneln in och halva platsgjuts. Det vi har jämfört är dels de geotekniska aspekterna, där vi främst har tittat på vikten av förundersökningar, jordegenskapens inverkan, spontning och grundvattnets inverkan.
Det energisnåla isoleringsmaterialet
This bachelor essay is divided into two parts, the first being a construction of a single-familyhouse and the second an in-depth study of five different isolation materials, analysed from anenergy perspective.The first part, the construction of the single-family house, has been created from knowledgeacquired during three years of studying at KTH Royal institute of Technology in Stockholm, inthe program Architecture and the Built Environment. The constructed house is a one-floorhouse of 137m2with façade plaster, situated in Borlänge, Sweden. The house has a wooden framewhich is built on a on sight cast concrete foundation, on the ground. The house?s roof is a gableroof, which has an angle of 24 degrees.
ROLL UP! Produkten som förenklar hanteringenav en dragfjäder : Ett examensarbete som startade med en enkel idé och utvecklades till en prototyp
This report presents an independent thesis corresponding 15hp and was carried out on Högskolan in Halmstad during the spring of 2014. The thesis is the final course which ends a three-year mechanical engineering program with focus on technical design.The thesis started in an operation which electricians are exposed to every day. The operation in question is cable laying or wiring. The tool they use is called a tension spring and is a long and stiff wire, usually made out of nylon or fiberglass. The tension spring is fed through pipes in the walls and brings the desired cables with it on the way back.
Teknik och teknisk kompetens enligt förskolans pedagoger : En studie av pedagogernas syn på teknik
System Andersson AB is a company located in Jönköping that works with developing computer systems for the mechanical engineering industry. As of today, when this report is written, the company is working on the development of a new Manufacturing Planning and Control (MPC) system. This new system aims to create not only a user friendly interface but also a modern, stylish interface. To achieve this, the company has decided to work with a, for them, new application framework; Windows Presentation Foundation (WPF).System Andersson is well known for developing systems for different kinds of touch screens, this project is no exception. For this new user interface the company wishes to implement different types of Drag&Drop functionality.
Livsmedelsval och näringsintag i svensk LCHF-kost ur ett folkhälsoperspektiv
Bakgrund LCHF (Low Carbohydrate, High Fat) är en lågkolhydratskost som fått stort genomslag i Sverige. Svenska Livsmedelverket är oroliga för hur denna utveckling kommer att påverka folkhälsan, framförallt då kolesterolnivåerna i landet under samma period ökat. Förespråkarna av kosthållningen ställer sig däremot frågande till rådande rekommendationer och menar att det är dessa som gör oss feta och sjuka. Trots debatten fattas det data på hur en LCHF-kost faktiskt ser ut. Syfte Syftet med denna studie var att kartlägga hur en LCHF-kost ser ut gällande livsmedelsval och näringsintag och utifrån det diskutera kosthållningen ur ett folkhälsoperspektiv.Metod 14 individer som ansåg sig äta enligt LCHF rekryterades till att utföra en vägd kostregistrering under tre dagar.
Informationssa?kerhetsanalysers verksamhetsnytta : Utva?rdering och fo?rba?ttringsfo?rslag
The importance of good information security and safety grows larger and larger for each day in the information society of today. This concerns citizens, companies and public authorities. At the Swedish Transport Administration, the operation of an information security and safety process has evolved over the years to guarantee that the public authority can be trusted by its citizens, cooperating companies and other public authorities. This responsibility has been assigned to the Information Security and Safety Department (Informationssa?kerhetsavdelningen, ITsa?).In this thesis the aim is to review to what extent ITsa? achieves any business benefits for the Swedish Transport Administration, and to analyze, streamline and come up with solutions to improve their workflow.
Analys av skillnader mellan internationell och svensk rapportering av inträffade händelser på kärnkraftverk
Report of diploma work conducted at the Swedish Radiation Safety Authority (SSM) as part of the bachelors program in Nuclear Engineering at Uppsala University.All nuclear power plants in Sweden are obliged to report any deficiency in their barriers or the defense in depth in obedience to SSM?s regulations concerning safety in nuclear facilities. In addition, there is an international system for reporting such events. The purpose of this thesis is to study the Swedish report system and to analyze the differences between Swedish and international event reporting.In the Swedish system, SSM?s regulations are effectuated by means of event reports classified as category 1-3, designed individually at each Swedish facility.
Effekter av bearbetningsdjup i plöjningsfri odling
In Sweden, reduced tillage usually means non-inversion tillage, where primary tillage is carried out using chisel ploughs or disc implements. Primary tillage method is mainly determined by the desired soil loosening and the handling of soil residues.
The effect of tillage depth was studied in field experiments in Skåne, Väderstad, Uppsala, Örebro och Västerås in different crops; spring oilseed rape, spring wheat, winter wheat and spring barley.The experiments generally had a randomized block design with the treatments mouldboard ploughing, deep chisel ploughing and shallow chisel ploughing, in some cases also shallow discing and no-tillage. In the experiments the following parameters were determined: seedbed properties, saturated hydraulic conductivity, penetration resistance, number of emerged plants and crop yield (all parameters were not determined in all experiments. Root growth and draught requirement were determined in two separate studies.
There were no significant differences between tillage depths in non-inversion tillage in seedbed properties, plant emergence or root development.
Project Inti : Produktutveckling av en solugn
In this report the two authors, and project contributors alike, describe their work withdeveloping a solar cooker intended for usage in the developing countries of the world.Specifically, the work aims at developing a new, solar heat driven cooking device, possiblybased upon the current product. This should, in comparison to the current product, be lighter,easier to transport and to produce. Also, the new product?s production mustn?t be more costlythan today and the included materials and components must be obtainable from within theBolivian national borders where the product is currently produced. During the project, certainadvantages with a more efficient, and, above all, a more moderately priced product, werediscovered.
Livsmedelssäkerhet för skolor, förskolor och äldreomsorg i Varbergs kommun; HACCP för tillagnings- och mottagningskök
One of the main objectives of all food production is to produce foods that can safely beconsumed without fear of being sick. Despite this hundreds of people are affected in Sweden offood poisoning almost every day. Most cases are caused by a small group of so-called pathogenicmicroorganisms. The most frequently affected are the small children, the elderly, persons withreduced resistance and pregnant. The reasons behind the food poisoning are often ignorance andlack of food hygiene.
Ett kandidatexamensarbete inom lättviktskonstruktioner .
Due to recent legal enactments regarding carbon dioxide emissions, the car industry is facing higher demands. An effective way of reducing these emissions is to minimize the weight of the vehicle. This thesis constitutes a feasibility study on whether or not it is applicable for the car industry to utilize an inner floor structure comprising composite materials. The principal was the projectSåNätt, in which the main participant was Volvo Cars Corp. In consultation with a reference group, consisting of delegates from the industry and KTH, a specification of requirements was produced.
Integrerad Rapportering : två sidor av samma mynt
The purpose of this paper is to through a conceptual definition, outline the meaning of integrated reporting. The empirical study aims to identify the development of integrated reporting in terms of driving forces and participants. We also intend to identify and explain the effects of integrated reporting and to describe, analyze and create an understanding of what is required of companies and the challenges an application of integrated can bring. To achieve the purpose of this paper, we have formulated a central question; What is integrated reporting and what will this development mean for companies? To answer the central question of this paper we have chosen to apply a qualitative approach with case studies as a research strategy.
Mot effektivare lagerhantering - en enkel modell för effektivisering
Många företag idag är inte medvetna om hur mycket de skulle kunna spara om de hade ett väl fungerande materialhanteringssystem. Det finns idag inga standardlösningar för att optimera materialhanteringen hos företag som ger tillräcklig noggrannhet och som företag kan applicera till låga kostnader.Genom kartläggning av problemställningar inom svensk industri och handel avseende materialhantering fastställs att den största kunskapsbristen inom materialhanteringsområdet kommer att bli inom lagerhantering. Arbetet begränsas därför till att bara behandla detta område.Detta arbete presenterar en generell modell för analys och framtagning av lösningar till lagerhanteringsproblem. Modellen är lättanvänd, lättförståelig och tar inte mycket tid i anspråk. Modellen presenteras som ett enkelt polärdiagram.Denna modell blir givetvis inte en perfekt spegling av verkligheten då det är en förenklad modell.