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2472 Uppsatser om Computer-implemented inventions - Sida 62 av 165

Ytterväggar : En jämförelse och livscykelskostnadsanalys

This report discusses the constructionof different types of exterior wallconstructions and analyses wall layers.Standard wall constructions from theSwedish building contractors NCC andSkanska and also from the materialproducer Isover have been chosen for theresearch. Life cycle cost analysis hasbeen made to conclude the mostprofitable wall type, seen from asustainable and economic perspective.The calculations have been made for aperiod of 50 years.The report shows that building with wellinsulated walls is a more profitablesolution both economically and whatconcerns sustainability even though thehigher investment. However, when wallssimilar insulation properties are beingcompared, the study proves that lowerinvestment cost is more profitable.The report introduces requiredconstruction techniques of walls inorder that the reader should understandwall constructions with different layersand properties. The essay shows theimportance of properly constructed wallsto avoid air leakage and moisturedamage.The essay has been implemented byliterature studies, contacts with NCCand Skanska and by energy calculationsmade by hand and using the software VIPEnergy..

Tallens fortsatta tillväxt i älgbetade bestånd

The Swedish Forestry Research Institute implemented an experiment which began in the year 1979 in a by moose browse damaged area in Sweden. An audit in 2014 of the moose browsing study called ?Furudalsförsöket? is the underlay to the study's results. By comparing Scots pine stands development in relation to known damage obtained thereby gives the understanding of how browsing affects the short and long terms impacts of Scots pines quality and volume production. The results of this year's audit reveal that the standing volumes in the undamaged and damaged areas represent a significant difference. The number and volume of the ingrown trees constitute a larger proportion of the areas that have been heavily browsed. It also proves once again that that all damage classes had a downward trend, which means that the damage is concealed with time.

Voxelbaserad rendering med "Marching Cubes"-algoritmen

Det finns flera olika metoder och tekniker för tredimensionell rendering, alla med olika för- och nackdelar som lämpar sig för olika applikationer. Voxelbaserad rendering har använts flitigt inom vetenskapliga områden, främst inom det medicinska för visualisering av volymetrisk data. Tekniken används nu inom flera olika områden för tredimensionell rendering, t.ex. i datorspel, i matematiska applikationer och vid geologisk rekonstruktion. I den här rapporten kommer voxelbaserad rendering med Marching Cubes-algoritmen undersökas för att se hur den lämpar sig för realtidsapplikationer. Området behandlas dels teoretiskt, men även praktiskt då en implementering av Marching Cubes gjordes för att genomföra några tester för att se hur prestandan påverkades. Av testerna framkom det tydligt att algoritmen lämpar sig väl för realtidsapplikationer och dagens grafikkort.

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.

Signal- och bildbehandling på moderna grafikprocessorer

En modern grafikprocessor är oerhört kraftfull och har en prestanda som potentiellt sett är många gånger högre än för en modern mikroprocessor. I takt med att grafikprocessorn blivit alltmer programmerbar har det blivit möjligt att använda den för beräkningstunga tillämpningar utanför dess normala användningsområde. Inom det här arbetet utreds vilka möjligheter och begränsningar som uppstår vid användandet av grafikprocessorer för generell programmering. Arbetet inriktas främst mot signal- och bildbehandlingstillämpningar men mycket av principerna är tillämpliga även inom andra områden.Ett ramverk för bildbehandling implementeras och några algoritmer inom bildanalys realiseras och utvärderas, bland annat stereoseende och beräkning av optiskt flöde. Resultaten visar på att vissa tillämpningar kan uppvisa en avsevärd prestandaökning i en grafikprocessor jämfört med i en mikroprocessor men att andra tillämpningar kan vara ineffektiva eller mycket svåra att implementera..

Äldreomsorgen och de sju små doktrinerna: En empirisk studie av New Public Management-reformer inom svensk äldreomsorg

The purpose of this paper is to perform an in-depth analysis of how New Public Management reforms have impacted management practises in two publicly financed elderly care providers in Sweden. The paper studies one public and one private elderly care provider and analyses to what extent they have implemented New Public Management methods. The results are based on interviews with several persons within the two organisations and analysed using the seven New Public Management doctrines as described by Christopher Hood (1991; 1995). The major finding in the thesis is that the level of exposure towards New Public Management reforms differs between the two studied organisations where the private provider is exposed to the reforms to a greater extent than the public. The paper concludes that the main reasons for the low extent of exposure in the public provider could be attributed to the lack of measurable standards performance as well as the proximity to the political leadership..

Matematik, ett tråkigt ämne! Kan laborativt/praktiskt arbetssätt ändra elevers attityder till matematik?

The aim of the study was to investigate the students´ attitudes towards mathematics, their knowledge in the subject area they find the least interesting and whether laborative/practical working methods could awaken their interest and curiosity. During our work, we have looked into previous studies regarding girls´ and boys´ attitude and performance in mathematics. We handed out surveys to students in grade 9 at a School with many people from other cultures and nationalities in Malmö in order to find the answers to our questions. The result showed that most of the students thought that the subject area "scaling" was the least interesting. The implemented action program was a laborative/practical task within the "scaling" area.

Marching Cubes med Deferred Rendering motor

Spel idag kräver en enorm mängd arbetstimmar för att skapas, därför behövs alltid sätt att spara tid och automatisera processer. Algoritmer för polygoniseringen av skalärfält, som Marching Cubes, har under de senaste åren blivit ett allt vanligare tillvägagångssätt för att automatiskt generera terräng. Scenkomplexiteten och kraven för visuell kvalitet i dagens spel ökar ständigt. Därmed kommer också kravet för prestandaeffektiva renderingsmetoder. Deferred rendering är en renderingsmetod som kan hantera scener med stora mängder ljuskällor och hög scenkomplexitet samtidigt. För att undersöka integreringen mellan procedurellt skapad terräng och en deferred rendering pipeline, skapades en applikation i DirectX 11 för att undersöka implementeringen och potentiella optimeringar av denna integration..

Energioptimering av industriellt tryckluftssystem

This report is a bachelor thesis presented at the department of Computer Science andEngineering at Chalmers University of Technology. The aim for the project is to find a simplemethod to measure and display physical quantities in a three dimensional room.The report describes a method to construct a system for measuring differentphysical quantities via sensors. The system must be built in a modular and expandable way tobe adaptable to different tasks.The system explained in the report consists of two parts;A physical scanner with moveable probes for carrying sensors and a microcontroller forcontrolling the probes and communicating with the next part.An application written in Java for storing the measured values and presenting them in a lucidperspective.It is possible to construct the scanner with different designs and circuitry, with multiplexers andflip-flops, to ensure that an unspecified number of probes can be added to the system and thatthey can be operated simultaneously.The Java application is written in a modular way, using a design pattern that separates eachindividual part of the application. It contains exceptions and interfaces that ensure a safe andexpandable application..

Internet : som kompletterande kommunikationskanal till Event Marketing

The aim of this essay is to examine how the Internet functions as a communication channel to Event Marketing. We have investigated what makes the Internet unique as a communication channel for events and how Internet has been used for event marketing. We have mapped fundamental theories within marketing, media, communications and human-computer interaction, which together describe event marketing. We have carried out case studies on two event-marketing projects where the Internet has played a major role. The first project was XCT which is a project developed by the company Eventum AB.

FPGA-design av en STDM-baserad multiplexer för seriell multiprotokollskommunikation

The remotely operated underwater vehicles that the client develops have needs of different kinds of data channels. In order to minimize the need of physical cable between the control unit and a ROV, a multiplex protocol has been developed. The protocol has been designed with the aim of using the bandwidth of the transferring link as efficient as possible.The different kinds of data channels used during this thesis project is; RS232, RS485 and CAN. ROM and FIFO-memories have been used to be able to effectively manage the different data channels. All the reading and sending of these channels have been implemented in FPGA-technology, the coding is made generic so that it will be easier to add more channels to the system in the future.The multiplex protocol is a modified version of the method STDM and it is a proprietary protocol.

Eurokoder : en jämförelse mot BKR

In Sweden there are currently two separate guidelines you may use whenperforming calculations on frameworks, BKR and the Eurocodes. Although at theend of 2010 you are not allowed to use BKR any longer and only the Eurocodeswill be viable. The aim of this thesis is to explain how the Eurocodes and EKS work and alsohow they compare to the current guideline BKR. Similarities and differencesbetween these guidelines are also discussed so that the reader will get a betterunderstanding of how the Eurocodes are applied. The areas discussed are asfollows:Principles and adviceSafety ClassesSymbols and IndexesLifespanLoads and partial coefficientThe thesis also deals with the impact that this transition into a new guideline willhave on corporations, guideline costs, education and computer software. As anexample a rough estimate on what costs this transition will create on a companywith 20 employees is also included. Calculations have been performed in order to investigate how the design valuesdiffer between the two guidelines, the Eurocodes and BKR.

Kvarnkretssimulering för test av styrsystem

This thesis has been carried out in autumn 2009 at Uppsala University for Boliden Mineral AB. Physical modelling has been used to model a comminution circuit. The model has then been linked to a PLC.When a concentrator is about to become operational Boliden Mineral AB have been looking for a way to test the PLC. The purpose of this report has therefore been to develop models for the subprocess in a concentrator and link these models to the PLC. The subprocess was a comminution circuit in Aitik36.

Ditt Andra Jag

Detta kandidatarbete fokuserar på att undersöka aspekter som kan förstärka en användares upplevelse inom digitala spel. De aspekter som vi valt att fokusera på är användandet av Oculus Rift och Motion Capture då de tar upp viktiga punkter som Virtual Reality, närvaro och inlevelse i spel. Vi valde även att fokusera vår produktion mot skräckgenren då detta är ett område vi båda har stor passion för i diverse media. I vårt arbete har vi fått fram en hypotes om att spel som fokuserar på att lämna karaktären i ett tomt skal (ingen personlighet), lämnar en större chans för inlevelse hos spelaren då användarens egna känslor speglas på karaktären. Användandet av Oculus Rift och realistiska röresler via Motion Capture har en tendens att även stärka detta..

Russinen ur kakan: - uppföljning av kampanjer i byggvaruhandeln

The Swedish do-it-yourself (DIY) market has expanded in recent years and is today a SEK90 billion market. Competition is fierce, however, and the DIY retail chains compete over market share with extensive marketing campaigns. Advances in computer technology have made it possible to acquire and compile huge quantities of point of sale data. However, due to a lack of economic theories and statistical methods, this data cannot be effectively utilized and the effects of the campaigns are not measured in any detail. In this study a new method was used to examine the effects of marketing campaigns in the DIY consumer market.

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