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206 Uppsatser om Laser scanning - Sida 9 av 14
Förenklad felinformation på trafikinformationsutrustning
This thesis lays the foundation of the future routines of effective error repotring fortraffic devices in the raiway sector.If a device, for example a timetable display, stops working it is vital that the device isfixed as fast as possible so that the travelers dont miss any important information.The methods that are used today are old and not very effective. It can take time forthe repairmen to find the right device or locating the broken component. At the sametime he is supposed to maintain telephone contact with central control throughoutthe whole session.The need for a new, more effective, system is vital to make the whole repair pfocessmore effective and let the repairmen work without having to contact the centralcontrol by phone.I started this work by examining the possibilities of assigning every object with aunique identifier (ID tag) that could be accessed by a manual scan device. The ideawas that the ID tag could holw information about the object and be obtained byscanning the ID and get the information presented on a mobile device.The work also included building a internet application that enabled the reader to seeand change the information on the ID tag.The result was a database that stored information of different objects which could beobtained by scanning the ID tag and presented by a internet application..
Fullriggaren - spektakulärt undantag eller framtid? : konsekvenser av en omvärldsanalys
Syfte: Åsikterna om Fullriggaren går isär. Gavlegårdarna har, som allmännyttigt bostadsföretag, kritiserats av allmänheten för att bostäderna anses vara för exklusiva. Syftet med studien är att närmare undersöka den omvärldsanalys som legat till grund för det strategiska beslutet att bygga Fullriggaren. Vi vill även skapa oss en uppfattning om hur allmännyttan håller på att förändras och vilken roll den spelat historiskt.Metod: Studien bygger på en kvalitativ metod, med två djupintervjuer som varit av semi-strukturerad karaktär. Vi har även gjort en litteraturstudie av allmännyttans historia.
Utformning av den inledande dokumentationen i enlighet med miljöledningssystemet
Projektet har genomförts på uppdrag av Micronic Laser Systems AB och är genomfört somett examensarbete. Projektets mål och syfte ät att skapa den inledande dokumentationen ienlighet med ISO 14001. Dokumentationen som framställs kommer att lämpa sig som utgångspunkt vid vidare arbete med miljöledningssystemet ISO 14001. I rapporten kan en teoretisk studie av alla delar inom miljöledningssystemet ISO 14001 läsas. Dock genom begränsningen har examensarbetet inriktat sig på planeringsfasen av ISO 14001.
Mätning av årsringsbredd med laser
Visuella kännetecken på trä kan användas för att försäkra sig om dess
kvalitet, till exempel träets hållfasthet och styvhet. Medelantalet
årsringar i brädan är en av dessa parametrar. Målsättningen i arbetet har
varit att undersöka om det är möjligt att använda mätning med laserpunkter
för att detektera årsringarnas bredd. Idag används en sådan utrustning med
tre laserpunkter i industrin för att mäta fibervinkeln och kärnvedsandel i
plankor vid tvärtransport. I data som innehåller information om
fibervinkeln kan man se ett tydligt brus, som inte är relaterat till
fibervinkeln.
Användandet av mobila enheter med appsystem och appars fackmannamässiga potential inom byggbranshen
Mobile devices such as tablets and smartphones are quite common in this day. The author of this thesis wanted to know how common these mobile devices are in the building industry and how they are used and what potential an app could have. The author thus conducted an investigation on this matter, mainly in the form of interviews.Answers given by the interviews were then used as a basis to survey the usage of mobile devices and the usage of different kinds of apps. An investigation of different apps with the potential to be used by professionals in the building industry has been carried through. Apps which manage such things as scanning documents, measuring distances and handle communication.
Säg det tydligt! : Stil i text på webben
AbstractWrite the most important things first in text that will be read by a scanning web user. This paper is based upon theories about? how we read? what style in texts is? how texts should be written for web pagesReading from computer screens is about 25 percent slower than reading from paper. This because screens? flicker? have lower resolution than paperAll text with the purpose of being read from a screen should be adjusted to the reader?s physical condition.
Göta älvbron, övervakning med optisk fiber : Ekonomisk analys
The Göta älv-bridge is a welded steelbridge which is located in Gothenburg,it connects the inner city of Gothenburgwith the island Hisingen. Cracks wasdiscovered in the steel in 1999-2000which started an investigation of thebridge to clearify the condition of thebridge. The conclusion was a monitoringsystem based on laser light sent throughan optical fiber.This report describes the bridge, thedamages, the monitoring system and thetraffic on the bridge.Stefan Pup, at Vectura Borlänge was mysupervisor during this work. In myinvestigation the costs of themonitoring system and the costs ofclosing the bridge is compared andevaluated. The biggest investigatingpart is the costs of closing the bridge.The results of my investigations is thatclosing the Göta älv-bridge would cost 1107 300 SEK / day.
Double integrating spheres: A method for assessment of optical properties of biological tissues
The determination of the optical properties of biological tissue is an important issue in laser medicine. The optical properties define the tissue´s absorption and scattering behaviour, and can be expressed by quantities such as the albedo, the optical thickness and the anisotropy coefficient. During this project, a measurement system for the determination of the optical properties was built up. The system consists of a double integrating sphere set-up to perform the necessary reflection and transmission measurements, and a computer algorithm to calculate the optical properties from the measured data. This algorithm is called Inverse Adding Doubling method, and is based on a one-dimensional transport model.
Att spegla sin omvärld ? En exemplifierande fallstudie av Haninge kommuns biblioteksverksamhet
The purpose of this paper is to investigate in which aspects the public library is affected by its local community. This is re-searched by means of an exemplified case study of a Swedish public library in which we analyze governing documents and the library website with respect to environmental scanning and mar-keting of library services.The research questions are: How are the local community?s demands on the public li-brary being described in the governing document? How is the public library?s response to the demands of the local community being described in the operational plan? How are the demands of the local community, as shown in the governing document and the operational plan, re-flected in the marketing of library services on the library website?Our conclusions are that:The demands of the local community are described in a general fashion in the governing document, but there is a lack of concrete political guidelines.The public library's response to the demands of the local commu-nity is described to some length in the operational plan, but not with respect to economical factors.The demands of the local community are reflected to some length in the marketing of library services on the library website. Many of the overall themes that we identify in the governing document and the operational plan can be found in the marketing directed towards important target groups..
Nyetablering i den offentliga sjukvården : hinder på två nivåer
Irradia AB tillverkar och säljer terapeutiska, kirurgiska och kosmetiska lasrar. Företaget har hittills inte lyckats skapa utbyte med den offentliga sjukvårdsmarknaden. Syftet med undersökningen var därför att analysera och utvärdera hinder för Irradia AB:s introduktion på den offentliga svenska sjukvårdsmarknaden. Fokus lades på de terapeutiska lasrarna. På grund av undersökningsområdets natur gjordes en separation av mega- och marknadsnivå.
Inverkan av olika joner och jonconcentrationer på porstorleksfördelningen i trämassa-fibrer
The basic ingredient of paper is the individual wood fibers. The property of the fibers depends on a variety of factors e.g., method of pulp production and processing. The final sheet quality depends in part on how the fibers interface between each other and therefore factors that affect the fiber size are of interest.The flexibility of the fibers depends in part on the pore water i.e., the fiber swelling. The sheet becomes less flexible at low water content which gives a loss in strength. Thus it becomes desirable to increase the water uptake.The experimental investigation described in this report consists of exposing the wood fibers to different ions and ionic strength and then measure the pore size by thermoporosimetry where a DSC (Differential Scanning Calorimeter) is used.
Forskning och museer : en kartläggning av fältet
Today every organization is committed to some kind of environmental scanning in order to get necessary knowledge of the world around them. The acquisition, organization and storage of information in combination with a strategic use, is today an important factor for a successful organisation in any sector of our society.In this Master thesis I have studied how an organisation such as The Confederation of Swedish Enterprise (Svenskt Näringsliv) handles its information resources. I have also looked at the flow of information within the organization. The Confederation of Swedish Enterprise is Sweden?s largest business federation representing 50 member organizations and 55 000 member companies.
SEM/EDS-analyser av föremål påträffade i Birka : En jämförande studie
The purpose of this paper was to identify the elements and the alloys that five objects found in Birka consist of and to examine whether there are any significant differences between the presumably imported and domestic objects. The material was analyzed using a scanning electron microscope (SEM) which was equipped with an energy dispersive X-ray spectrometer (EDS) in order to identify the elements that are present and the alloys that the objects are made of. Then the SEM results were compared with the results of previous analyzes that have been performed on finds from Birka in order to investigate how the objects differ in elemental composition and to find out if there are any significant differences between them. The results showed that the objects? content of the elements analyzed varies as the copper alloys the objects are made of.
Utveckling av metod och prototyp för detektering av lastförskjutning
Denna rapport är resultatet av ett samarbete mellan Banverket och Luleå tekniska universitet. Rapporten behandlar ett projekt vars mål är att ta fram en prototyp av en profildetektor. Profildetektorn ska kunna klara av ett detektera utstickande föremål från järnvägsvagnar samt fungera i vårt klimat med dess variationsrika klimatologiska förhållanden. Idag finns det inget system med tillräckligt god prestande som klarar av det besvärliga klimat vi har här i Norden. Ett av de större problemen med de system som testats hittills är att de inte klarar av att filtrera bort falsklarm som då uppstår.
Ungdomars egen upplevda psykiska hälsa och skolsituation
The aim of this study was to describe non-surgical treatment options for the diseases mucositis and peri-implantitis found in present literature. The literature review also illustrates the effect of the treatment opptions on soft tissue with mucositis and peri-implantitis surrounding dental implants. The study reviews twelve scientific articles that have been processed from the aim of the study. The result shows six therapy options, Er:YAG laser, air abrasive, ultrasonic device, hand instruments, hand instruments in combination with antibiotics and hand instruments in combination with clorhexidin. The following methods are described according to how they are used and how they affect the soft tissue surrounding dental implants.