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702 Uppsatser om Lighting principles - Sida 17 av 47
Algoritmer för objektdetektering i SAR och IR-bilder
The first part of the thesis consists of a brief introduction to the general principles of target detection and the sensor-systems used. In the following part there is a theoretical description of the algorithms this thesis focuses on. The detection algorithms described in this paper are called Cell Average, Ordered Statistics, 2parameter and Gammadetector. Two different discriminators called Extended Fractal Features and Quadratic Gamma Discriminator are also described. The algorithms are tested on three different types of data, simulated SAR-pictures, authentic SAR-targets and IR-pictures.
Modern statssuveränitet En analys av hur synen på statssuveränitet har förändrats med Bosnien-Hercegovina som exempel
The purpose of this study is to analyze how the parties (USA, Great Britain, UN and the European Union) legitimize their intervention in Bosnia-Herzegovina as seen from without the conceptions of sovereignty and intervention. USA and the UN have legitimized their intervention on security reasons. The American president, George W. Bush, claimed that democracies never engage in war with each other and that democracies were prosperous just because they were democracies. According to the president, that is why it is important to democratise the whole Balkan region to protect the international community from terrorism which grows in unstable and undemocratic states.
CMS och UX : tekniker för hur man utformar en god användarupplevelse
The purpouse of this study is to find out how and if a Content Managment System (CMS) can benefit from applied User Experience Design (UX). A work project has been executed where a client wanted the students to create a user friendly CMS for adding content to a global hotel review site. A prototype of a CMS was created based on literature studies about UX and CMS. The prototype of the user friendly CMS was then tested through user tests and interviews with key users. After input from the key users the prototype was changed until the users were satisfied with it..
Gränsdragningsproblemet i luck egalitarianism
The purpose of my study is to investigate whether luck egalitarianism can be savedfrom its inability to draw a line between risks which can reasonably be expected to beavoided, and risk which can not. Such a demarcation is of particular importance forthis influential theory of distributive justice, since it serves to judge whether a personis entitled to compensation for a bad outcome of a taken risk, or not. Testing theintuitiveness and coherence of various contending principles for how to separateavoidable risks from unavoidable ones, I conclude that luck egalitarianism seemsunable to draw a clear line between the two kinds of risks. Instead the theory appearsto be dependent on conceptions of a 'normal life', making it remarkably vague.Furthermore, I argue that luck egalitarianism seems unable to manage without takingsufficientarian and utilitarian concerns into account, for the purpose of decidingwhich risks are avoidable, and which are not..
Belysning av en badmintonplan
Badminton är en inomhussport som människor i alla åldrar och på alla nivåer kan utöva. Ju högre nivå sporten utövas på ju mer krav ställs på belysningen. I många badmintonhallar används idag armaturer som bidrar till bländning och som inte ger en god synkomfort. Badminton är världens snabbaste racketsport vilket gör att kraven på belysningen är hög. Utan tillräckliga riktlinjer gällande belysningsanläggningens utformning som ska säkerställa en god belysning för spelarna kan det bli svårt för dessa att hinna uppfatta fjäderbollen, då spelet går väldigt snabbt och mycket rörelser sker på badmintonplanen.Syftet är att öka förståelsen för vilka faktorer som är viktiga att ta hänsyn till vid planering av ny belysning i badmintonhallar.Metoderna som användes i studien var observationer, ljusmätningar, intervjuer och enkätundersökningar.
Högeffektslysdioder. Möjligheter och förutsättningar för högeffektslysdioder som belysningskälla - ett demonstrationsbygge
This report examines the prerequisites for LEDs to replace other technologies indifferent applications. How does the different technologies for light generationwork and what are the advantages and disadvantages? The various technologieslimitations and characteristics provides the opportunities for the LEDs.This report describes a test-construction built to examine what practical arrangementscan be built with modern light emitting diodes, in order to showsome of the possibilities. The construction consists of three different applications,a high power lamp based on cold white LEDs, one based on warm whiteLEDs for the evaluation of the light characteristics and a RGB-LED based lampable to mix any colors quickly and seamlessly. The test construction also containsthe essential peripherals including control-electronics, optics and a custombuilt watercooling solution.The potential for LEDs is huge but it is complicated to build LED based applicationsdue to the limitations which mainly includes the electronics and theneccesary cooling.
Så designar du användarvänliga interna kommunikationsnätverk
Companys usually have intern communication platforms where employees can gather information and communicate with eachother. These networks are not public which leads to less resources spent on development. If this network is also used as a work tool may inadequate usability decrease work effeciency. Thats why we, by using known design principles, evaluated an already existing network of this kind along with interviews and think out loud tasks for users. Four users had to do some tasks while they explained how they went through step by step to solve those. This report culminates into a couple of guidelines which can be used to create a user friendly network. The problems that prevented users to feel in control when working resulted in the following guidelines: Create shortcuts of frequently used functions.
IKT som pedagogiskt verktyg : - en studie om lärares användning av IKT i undervisningen
The purpose of this study is to investigate the attitude to and experience of information and communication technology (ICT) in teachers teaching and what motivates them. The study is qualitative and its research material is based on interviews. There are eight interviews and they where carried out at one school with a stated IT profile and at another school without a stated IT profile. The two schools are located in different municipalities, but both are secondary schools. The result shows that there are differences in attitude between the two schools. The school with a stated IT profile seems to have a more open mind of using ICT when teaching, but both schools sees the lack of availability as one of the main hindrance for using it. None of the participating teachers saw themselves as controlled to use ICT in their teaching.
Nya gränssnitt mellan människa och hav: interaktiva teknologier för ett marint upplevelsecenter.
This thesis project explores technologies that enable people to experience the world through animals' senses in order to spark interest in and awareness about the marine environment and its inhabitants. The project is carried out as part of a planned ocean themed science center. The purpose is to explore how a greater understanding of the marine environment can be achieved using interactive technologies. The thesis is based on a theoretical framework consisting of academic works on experience, learning
in a museum context and sensory perception.
Our proposed designs are a series of, primarily, wearable devices that translate sensory experiences and principles from the marine world to humans.
Förekomst och grad av osteokondros i distala radius och ulna hos konventionellt och KRAV-uppfödda slaktsvin :
The occurrence and degree of osteochondrosis was studied in 64 pigs raised in conventional systems (45) or organically according to KRAVs principles (19). In this blind study the growth plates of distal radius and ulna were examined macroscopically and radiologically searching for pathological lesions. One significant difference was shown in this study. Conventionally raised pigs diagnosed with osteochondrosis had more severe lesions in the distal growth plate of radius and ulna than the corresponding group of pigs raised organically. No significant difference was shown between the groups when all pigs were included.
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En iPad-baserad ritningsbehandlare
In today?s society, it becomes more common with tablets, that makes us interact with computers in a whole new way. For example these are used to read and write e-mails, surf the web and playing games. Another manner of use of these tablets is to read and edit PDF documents. PDF handling is often meant to be used in books and inregular text documents, but it could also be used in the management of drawings.An industry that would benefit greatly from the use of tablets for this purpose is the con- struction industry.
Ackumulation av CO2 och CH4 i istäckta boreala sjöar : Hur förändras ackumulationen i sjöar påverkade av avverkning jämfört med referenssjöar?
The aim of this report was to quantify the accumulation of carbon dioxide (CO2) and methane (CH4) in ice-covered lakes in winter (October-March) during three consecutive years, and to assess whether the concentrations of DIC and CH4, as well as the ratio DIC:CH4 differs between years and between lakes affected by clearcutting and untreated reference lakes. Water- and gas samples were collected from four boreal lakes (two affected by clearcutting and two untreated reference lakes) located in Västerbottens inland in spring. The lakes were found to accumulate on average 91, 55, and 84 mgCm-2d-1 during winters 2012-2013, 2013-2014, and 2014-2015, mostly originating from CO2. The concentrations of DIC (autumn and spring) were higher in the affected clear-cut lakes compared to reference lakes for all years, including the reference year (2012-2013) before clear-cutting. No such difference was found for CH4 or the ratio DIC:CH4.
INFÄSTNING AV LED-ARMATUR
The thesis was performed at the lighting company Zpecta AB. Zpecta needed to develop alternative attachment of their LED-luminaire Capella. Today Capella attaches in metal ceilings with four magnets. Zpecta got indications from their customers that there was a need for other attachments. The purpose is to determine the customer?s requirements and the interfaces that are considered for Capella.During the thesis, Capella was only on the market for testing and evaluation.The thesis was initiated to create a specification.
"Challenges when implementing standardized and processes within a customer service unit"
Abstract Interest in Lean grows and spreads to the public from industrial and service sectors. Lean is currently used in administrative processes and it is called Administration but can administration be Lean? The aim of our study is to develop a useful model for a successful implementation of Lean Administration by using various scientific articles, books and information from the case study.The part of the purpose is to: ? Identify critical success factors that arise? Identify the challenges arising from the implementation of Lean Administration.We have studied a Division within Distribution at GE Healthcare in Uppsala. The model that we have developed provides challenges and success factors for a successful implementation.In order to succeed in implementation, a culture that promotes continuous improvement must exist in the organization. A key success factor is to understand Lean Administrations structure and principles.
Energimässig jämföelse med investeringskalkyl av två förskolor
This thesis includes an energy survey of the Herrgården pre-school, which has a modern heating- and ventilation system, and a comparison with Östers pre-school which has an older system. An energy survey of Östers pre-school has already been done by a group of three students and all the calculations and values have been collected from that survey. As of today, both pre-schools are heated thru district heating. It will be much easier to make smart and feasible energy-saving-measures by first conducting the energy survey.Herrgården pre-school in Gävle houses 81 children, therteen teachers, one cleaner and one cook. It was finished in the middle of 2009 and the staff has been very pleased with the in-door climate.