Dissertationen: „Profilerad“

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Cortes, Sebastian. „Profilerad PV-modul AvSammansatta Kiselceller“. Thesis, Karlstads universitet, Institutionen för ingenjörsvetenskap och fysik (from 2013), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-84809.

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I denna rapport presenteras en analys av en profilerad solmodul av sammansatta kiselceller. Syftet med detta är att undersöka effektkurvan och I-V diagram på en denna solmodul vid olika infallsvinklar från ljuskällan för att få en förståelse på förluster gentemot en plan-modell. Genom att konstruera en modell med skurna kiselsolceller utgörs mätningar för att få en representation av effektkurvan. Resultatet skall sedan jämföras med en plan-modell, därefter diskuteras resultaten från bägge modellerna.

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Jonsson, Fredrik. „Lokal möbelproduktion : Profilerad lokal möbelproduktion i Hälsingland“. Thesis, Högskolan i Gävle, Design och formgivning, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-28586.

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Hübinette, Björn. „Mobil IKT i Skolan : Trender på en IT-profilerad gymnasieskola“. Thesis, Uppsala universitet, Kulturgeografiska institutionen, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-158823.

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Karlsson, Kristoffer, Maria Olsson und Jessica Johansson. „Profilerade skolor : marknadsanpassning eller verksamhetsutveckling“. Thesis, Högskolan Dalarna, Pedagogiskt arbete, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:du-2555.

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Espinoza, Eduardo. „Elevers utveckling i den matematiska tänkande : Exempel från en fristående skolan profilerad i matematik“. Thesis, Södertörn University College, Lärarutbildningen, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:sh:diva-848.

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The primordial purpose of our studies has been carrying out a detailed research to describe methods or work procedures in the teaching and application of the mathematics, at a school based or alignment on the mathematics instruction. To be able to study the pupils in their development of the mathematical thinking.

We have carried out a detailed investigation, in the previously mentioned school using the ethnography observation methods directly in the place of the facts. Where it was possible to verify that the mathematics lessons were a consequences of the methods or work procedures which made us deduce that this school did every possible effort to stimulate all the pupils to be better and particularly talented pupils individually to develop one’s talent by means of the following results:

· Develop the logical thinking

· The self-critical ability

· The attitude of the teacher/communication

· A positive work atmosphere

· Organization of the school and the class

· Formation of the theoretical knowledge

Keywords

Mathematical thinking.

Pupils

Independent school

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Martincic, Patricia, und Emma Larsson. „"Jag tror det är lättare om man har en profil att gå efter" En jämförelse mellan en profilerad och en ickeprofilerad förskolas arbetssätt“. Thesis, Malmö högskola, Lärarutbildningen (LUT), 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-32762.

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Syftet med vår undersökning var att synliggöra två förskolors arbetssätt för att uppnå de strävansmål i Läroplan för förskolan, Lpfö98, som rör estetiska uttrycksformer. Vi ville undersöka om det fanns tydliga skillnader eller om arbetssättet på en musikprofilerad och en ickeprofilerad förskola är likartat. De frågor vi utgick från var Hur arbetar pedagogerna på en profilerad förskola för att nå målen i läroplanen? Hur arbetar pedagogerna på en förskola utan specifik profilering för att nå målen i läroplanen? Vad finns det för skillnader och likheter i dessa arbetssätt? Vi valde att använda oss utav kvalitativa intervjuer och aktiva observationer för att samla in empirin. Vi intervjuade sex pedagoger på två olika förskolor i Skåne. Tidigare forskning och litteratur inom området har vi under arbetets gång inte stött på. Därför utgick vi från olika musikpedagogiska teorier, samt litteratur kring kreativitet och läroplanen, när vi analyserade vår empiri. Vår slutsats blev att de två förskolor vi besökte hade mestadels likartade arbetssätt. Samtliga pedagoger i undersökningen ansåg att pedagogens intresse spelar större roll än en specifik profilering.

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Andersson, Martina. „Barns inflytande i förskolan : är det någon skillnad mellan en Reggio Emilia inspirerad förskola och en icke profilerad förskola? en intervjustudie om fyra förskollärares synsätt på barns inflytande“. Thesis, Högskolan i Gävle, Akademin för utbildning och ekonomi, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-11135.

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Detta är ett examensarbete om fyra förskollärares syn på barns inflytande och syftet är att jämföra, en så kallad komparativ studie, Reggio Emilia inspirerade förskolors syn med icke profilerade förskolors. Studien genomfördes i form av intervjuer med fyra förskollärare på två olika icke profilerade förskolor och på två olika Reggio Emilia inspirerade förskolor. Samtliga är kommunala . Enligt litteratur och forskning som ingår i studien så är barns inflytande och känsla av delaktighet en förutsättning för lärande. Det är också en förutsättning för att barn ska förstå innebörden i begreppet demokrati att de på förskolan introduceras till vad begreppet innebär. Förskolan ska lägga grunden till de demokratiska medborgare som samhället efterfrågar och detta är också utförligt beskrivet i Lpfö 98 som de icke profilerade och Reggio Emilia inspirerade förskolorna följer. Däremot är inte alla förskolor skyldiga att följa gällande läroplan. De enskilt drivna förskolorna har möjlighet att välja om de vill följa läroplanen men de kan också välja att inte använda den. Då gäller istället riktlinjer som kommunen tagit fram. Resultatet av denna studie blev att det inte var så stora skillnader mellan de icke profilerade kontra de Reggio Emilia inspirerade. Det visade sig istället att det fanns mer likheter än skillnader på synsättet på barns inflytande i de fyra förskolorna som deltog i studien. Likheter som trädde fram i resultat var att de var ense om att för att kunna anta barnperspektiv måste man lära känna barnet som individ och lyssna, detta vare sig de jobbade på en profilerad förskola eller inte. Samtliga tyckte att verksamheten bygger på barnen och deras intressen speciellt vid temaarbeten. Att barnen har inflytande är viktigt och att de har möjlighet att välja aktiviteter på förskolan. Olikheterna handlar om hur de två pedagoger som arbetade på de två icke profilerade förskolor som deltog i studien ansåg sig ha bristande resurser när det gäller personal för att kunna arbeta på det sätt de önskade. En av de pedagoger som arbetade på en Reggio Emilia inspirerad förskola ansåg sig däremot ha tillräckliga resurser i form av personal för att kunna arbeta så som de önskade med bland annat mindre grupper och valmöjligheter för barnen ifråga om både utevistelse och innevistelse. De kunde också arbeta med stationer där barnen själva fick välja aktivitet.

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Almroth, Henrik. „Dragbrotschning av invändiga profiler“. Thesis, KTH, Industriell produktion, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-91086.

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High-precision cutting in metal is very complicated, a lot of parameters affect the result: what geometries to be manufactured, surface roughness and tolerances to be achieved, batch size etcetera. When pull-broaching internal parts this might be even more important, than in any other cutting operation. Everything is machined in one single stroke and the general technology is built in to the tool, therefore big investments must be made to change the process. Milling for an example: one piece at a time is machined away, and a lot of parameters can be changed easily.It is very high pressure on the cutting-edge when the broach is cutting. To achieve the specified product and to avoid unnecessary toolwear it is essential to use the right cuttingfluid and the right cuttingspeed for an example. An investigating interview has been made at Scania in Södertälje, to see how theory is related to practice. The result was not the expected. One reason might be that found literature in the subject was very old, and another might be that manufacturer of broaches work in secret and do not want to share their advantages so they can keep a market-leading position.
För att kunna utföra precisionsbearbetning av metaller är det många parametrar som spelar in. Vilka geometrier ska framställas, vad ska det vara för ytjämnhet och toleransvidd på den färdiga produkten, hur stor volym ska tillverkas etcetera. Vid dragbrotschning av invändiga profiler är detta om möjligt ännu viktigare än vid annan skärande bearbetning. Allt sker i en övergång och den styrande tekniken sitter i verktyget, för att ändra styrande parametrar måste stora investeringar i nya verktyg göras. Vid exempelvis fräsning bearbetas en bit i taget och processen går att justera på ett annat sätt. När brotschen skär är det en mycket stor kraft på skäreggen. För att kunna erhålla önskat resultat och undvika onödigt slitage på verktyg är det essentiellt att exempelvis skärvätskeflödet är korrekt och att rätt skärhastighet används. En undersökande intervju har genomförts på Scania i Södertälje för att se hur praktiken fungerar gentemot teorin. Det visade sig skilja en del mellan teori och verklighet. En del kan tänkas bero på att den litteratur som funnits i ämnet är relativt gammal och en annan att tillverkare av brotschar tycks arbeta i hemlighet, för att kunna behålla sin ledande position på marknaden.

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Norstedt, Sofia. „ICC-profilers användbarhetvid gråbalansjusteringav arkoffsettryck“. Thesis, Högskolan Dalarna, Grafisk teknik, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:du-3507.

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I detta examensarbete har gråbalansstyrning och ICC-profilers duglighet undersökts. ICC-profilernahar utvärderats utifrån den tryckkvalitet de genererat tillsammans med olika papper.Gråbalansstyrning har använts som gemensamma likare för samtliga testtryckningar. Detta tillfördeen variabel som var lika för samtliga papper i utredningen. Här med ökade sannolikheten att ICCprofilerskapade från olika papper, skulle ge en likvärdig kvalitet.I arbetet har många mätningar och beräkningar genomförts. De två främsta anledningarna till dettavar dels att utreda i vilken mån det gick att gråbalansjustera trycket och dels att inhämta jämförbaravärden på likheter och divergenser mellan olika kombinationer av ICC-profiler och papper. Mätdatahjälpte även till att ta hänsyn till de felkällor som fanns.Det var möjligt att gråbalansjustera trycket och det fanns likheter mellan en ICC-profil på olika papperoch även mellan fler ICC-profiler på samma papper. Samtliga resultat och slutsatser var beroendeav att neutral gråbalans upprätthölls under tryckningarna. Subjektiva och objektiva jämförelser visadebåda på att en ICC-profil inte kommer att påverkas av variationer mellan olika pappersleveranser,såvida dessa inte är större än skillnaden mellan de olika papperna.Med säkerhet kunde inte förutsägas från vilket papper en ICC-profil skulle skapas för att ge en högkvalitet på flera papper. Mest troligt var att likvärdigt resultat skulle kunna uppnås på G-Print, MultiArt Matt och Multi Art Silk.

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Malaguti, Anneli, und Lisa Öhlund. „TV-profiler på TV4 : En studie om hur TV4 arbetar med personliga profiler“. Thesis, University of Kalmar, School of Communication and Design, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:hik:diva-1137.

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In the media world today it is important for TV-companies to differentiate since the number of competitors has increased. The competition is more complex today because of the possibility to broadcast throughout satellite and cable. As a company you need a strong brand in order to differentiate the company from the competitors. The brand of media companies are set by the content of the offer, which means that the program and the people connected to the television program has an importance for the sake of how people experience the company. For a commercial TV channel the content is also important because it attracts the viewers and as a consequence, also attracts the advertisers. In this thesis, we have studied how a Swedish TV company works with people in order to strengthen its identity and brand and the reason for this. We have examined a commercial TV company, TV4. The company consists of one big mainstream channel and several smaller niche channels. To study how they work, we interviewed five managers from different departments in the organisation. People as brand identity and the uses and gratification theory gave us a wider understanding of why the company work with profiles. The results of our study showed that TV4 works with a number of TV hosts and celebrities in different ways to createa stronger brand. Theseprofiles have several extensive functionswithin the company. They are the messengers of the identity and the brand that the company tries to communicate. They symbolise the brand of TV4 for the viewers and assist in creating an identity for the smaller channels or to attract the viewers. The results also indicate that the company is aware of various needs the viewers requireand that the profiles operate to fulfil those needs.Well known profiles create a personal relationship to the viewers which is one of the reasons why they use profileswithin the establishment. Another reason is that the company believe thatprofiles are important to attract viewers and be competitive.

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Hemmen, Peter. „WoolPlot: A Visual Wool Profiler“. Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for datateknikk og informasjonsvitenskap, 2011. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-16309.

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Task-based programming involves creating tasks, which can be run independently of each other, and letting the run-time system schedule the tasks on the underlying architecture. Wool is a new library for task-based programming created at SICS in Sweden. To assist a developer who is using Wool to parallelize a program, as well as the scientists who are actually developing Wool, a profiler which shows what happened in a computation can be very helpful.In this project we modify the Wool library to print more data about its computations. When the output is given to a Java application also developed in this project, the Java application produces a graphical representation of the execution. Each worker thread is visualized separately, with spawns, steals, leaps, critical path and CPU usage information included at a position corresponding to when the events actually occurred.The profiler, which we have named WoolPlot, is put to the test using a few real-world benchmarks, as well as some created especially for this project. The benchmarks show that WoolPlot works well when describing the distinct events such as steals and spawns. The reporting on the CPU load is too inaccurate to be sufficient for all practical uses. The overhead of the profiler is estimated to be between 3% and 6%.

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Harding, Philip W. „Composite floors with profiled steel sheeting“. Thesis, Cardiff University, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.314656.

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Wu, Tao. „Profiled absorbers : theory, measurement and design“. Thesis, University of Salford, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.400825.

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Essawy, Mahmoud Ibrahim. „Shear-bond in profiled composite construction“. Thesis, University of Strathclyde, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.360793.

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Coore, Daniel. „Automatic profiler-driven probabilistic compiler optimization“. Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/35396.

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Ahmed, Mustafa, und Khaldoon Barka. „Böjknäckning och utböjning av VKR-profiler“. Thesis, KTH, Bro- och stålbyggnad, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-281440.

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This work has been done in collaboration with Northpower Stålhallar AB. The work is concentrating on column buckling, wind load and deflection of steel columns made of VKR profiles. VKR profiles are steel profiles that are hot-rolled structural pipes having a rectangular section. The analysis is made according to Eurokod 3 and with the finite element program Abaqus. A comparison has been made between these to see whether they differ in result or not regarding buckling curves and interaction formulas. In addition, the company wanted calculation templates in Excel. A proposal for a spreadsheet for different deflection limits are presented in Excel that the company can use, as well as a calculation template for wind loads where all municipalities in Sweden are included. The report contains theoretical background on how to design columns with respect to buckling, wind loading and deflection according to Eurokod 3.The work with Abaqus includes linear and non-linear analysis of column buckling. The analyses also include geometric imperfections, residual stresses, and plastic behavior of steel. The result showed a slight difference between Eurokod and Abaqus analyses but it was not a considerable deviation.

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Liljeroth, Katarina. „ICC-profilers funktionalitet vid byte av tryckfärgskvalitet“. Thesis, Högskolan Dalarna, Grafisk teknik, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:du-3528.

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This degree theme work aims to evaluate the present ICC-profile and printing ink of Dalarnas Tidningar AB. The companyhas changed printing ink quality and wants to evaluate how the present ICC-profile work with the new printingink. Four different ICC-profiles were included in the comparison.One test printing was accomplished with two different separations. Two new ICC-profile was created, as a comparingmaterial. An densitometer was used to measure the technical parameters of the printing. IT8-charts and RGB-chartswas measured with spectrophotometer. La*b*-values, CMYK-values, graybalance curves, color deflections and colorgamuts was compared on screen and on the printed material.Materials from an earlier testprinting and evalution, made by Stora Enso Kvarnsveden AB 2003, was used to evaluatethe function of Dalarnas Tidningar AB´s ICC-profile with the present printing ink quality. The IT8-chart from todaystestprinting was oppened in a program for textediting to have access to La*b*- and CMYK values. The values from theearlier testprinting was supplied from Stora Enso Kvarnsveden AB.The result of this work shows that the ICC-profile from the company, compared with de other profiles, reproduce darkershadow regions which can make loss of details. An higher saturation is recieved in the red and yellow area while thegreen and blue area lose its intensity. The profile gave images which are some contrastless and with a flat reproduction.Today printing ink quality gives more saturation and intensity in the yellow and blue area compared with former printingink. The dark tone reproduces with decreased luminance, however.

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Norstedt, Sofia. „ICC-profilers duglighet vid gråbalansjustering av arkoffsettryck“. Thesis, Högskolan Dalarna, Grafisk teknik, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:du-3538.

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Adjustment to a neutral colour balance when printing was the starting point in this degree project. Onthis base ICC-profiles were evaluated and assessed. The survey was concentrated on the similarity betweenreproductions on different papers with various ICC-profiles. The colour balancing introduced aconsistent variable between four graphic papers. With raised uniformity the probability increased toreceive similarities between the various combinations of ICC-profiles and papers.Numerous of measurements and calculations have been carried out, mainly to confirm whether or notadjustment to a neutral colour balance is possible and repeatable. Further more this gained in comparablevalues corresponding to similarities and divergences between combinations of ICC-profiles andpaper.The research concluded in the fact that it was possible to reach a neutral colour balance. One ICCprofileused together with various papers and also one paper with several ICC-profiles resulted in similaritiesand formed groups of samples. Since equivalent results could be reached on different samples,it implicated that variations within one paper shouldn’t affect the ICC-profiles. This was valid when thevariations were less than the divergence between the papers.Certain predictions on the question of from which paper the ICC-profiles should be generated to createhighest quality in print hasn’t been able to assemble. It’s likely that equivalent results could begenerated on G-Print, Multi Art Matt and Multi Art Silk.

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Leblanc, Sylvain G. „Studies of turbulence with a wind profiler“. Thesis, McGill University, 1994. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=22755.

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In Doppler radar analysis of the atmosphere the spectrum width is rarely used but it contains information about turbulence. Turbulence is not the only effect that contributes to the broadening of the spectrum. Another effect is the cross-beam wind, which can be dominant in broad-beam radars such as wind profilers. Once this effect is removed, the so-called residual width then serves as an indication of turbulence. A large snowstorm is used in this study for the computation of the residual width. Strong wind and wind shear were observed during the storm. The time-height pattern of residual width bears a close resemblance to that of wind shear. This supports the interpretation of the residual width as being an indication of turbulence induced by wind shear. Energy dissipation rates are also estimated for the snowstorm. In some regions values as large as 800 cm$ rm sp2 s sp{-3}$ are observed. These are large, but within the range of what has been reported by others. The same techniques were applied to the study of clear-air turbulence to relate radar reflectivity with turbulence.

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Xing, Kerry (Kerry K. ). „Cilkprof : a scalability profiler for Cilk programs“. Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/91879.

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Thesis: M. Eng., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2014.
Cataloged from PDF version of thesis.
Includes bibliographical references (pages 51-53).
This thesis describes the design and implementation of Cilkprof, a profiling tool that helps programmers to diagnose scalability problems in their Cilk programs. Cilkprof provides in-depth information about the scalability of programs, without adding excessive overhead. Cilkprof's output can be used to find scalability bottlenecks in the user's code. Cilkprof makes profiling measurements at the fork and join points of computations, which typically limits the amount of overhead incurred by the profiler. In addition, despite recording in-depth information, Cilkprof does not generate large log files that are typical of trace-based profilers. In addition, the profiling algorithm only incurs constant amortized overhead per measurement. CilkProf slows down the serial program execution by a factor of about 10 in the common case, on a well-coarsened parallel program. The slowdown is reasonable for the amount of information gained from the profiling. Finally, the approach taken by Cilkprof enables the creation of an API, which can allow users to specify their own profiling code, without having to change the Cilk runtime.
by Kerry Xing.
M. Eng.

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Koskelin, Kelly 1980. „EProf : an energy profiler for the iPAQ“. Thesis, Massachusetts Institute of Technology, 2004. http://hdl.handle.net/1721.1/28430.

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Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2004.
Includes bibliographical references (leaves 37-38).
In this thesis, I designed and built EProf, a system that profiles the energy use of a Compaq iPAQ. Energy profilers help determine what parts of code are most energy-intensive so that programmers can concentrate on software hotspots. EProf uses statistical sampling to measure an iPAQ's energy use under a variety of working conditions. The EProf infrastructure is a foundation for further work on portable, online energy profiling.
by Kelly Koskelin.
M.Eng.

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Lee, Christopher Francis. „Use of wind profilers to quantify atmospheric turbulence“. Thesis, University of Manchester, 2011. https://www.research.manchester.ac.uk/portal/en/theses/use-of-wind-profilers-to-quantify-atmospheric-turbulence(d6a12ed2-533a-4dae-9f0d-747bc0b4c725).html.

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Doppler radar wind profilers are already widely used to measure atmospheric winds throughout the free troposphere and stratosphere. Several methods have been developed to quantify atmospheric turbulence with such radars, but to date they have remained largely un-tested; this thesis presents the first comprehensive validation of one such method. Conventional in-situ measurements of turbulence have been concentrated in the surface layer, with some aircraft and balloon platforms measuring at higher altitudes on a case study basis. Radars offer the opportunity to measure turbulence near continuously, and at a range of altitudes, to provide the first long term observations of atmospheric turbulence above the surface layer. Two radars were used in this study, a Mesosphere-Stratosphere-Troposphere (MST) radar, at Capel Dewi, West Wales, and the Facility for Ground Based Atmospheric Measurements (FGAM) mobile boundary layer profiler. In-situ measurements were made using aircraft and tethered-balloon borne turbulence probes. The spectral width method was chosen for detailed testing, which uses the width of a radar's Doppler spectrum as a measure of atmospheric velocity variance. Broader Doppler spectra indicate stronger turbulence. To obtain Gaussian Doppler spectra (a requirement of the spectral width method), combination of between five and seven consecutive spectra was required. Individual MST spectra were particularly non-Gaussian, because of the sparse nature of turbulence at its observation altitudes. The width of Gaussian fits to the Doppler spectrum were compared to those from the `raw' spectrum, to ensure that non-atmospheric signals were not measured. Corrections for non-turbulent broadening, such as beam broadening, and signal processing, were investigated. Shear broadening was found to be small, and the errors in its calculation large, so no corrections for wind shear were applied. Beam broadening was found to be the dominant broadening contribution, and also contributed the largest uncertainty to spectral widths. Corrected spectral widths were found to correlate with aircraft measurements for both radars. Observing spectral widths over time periods of 40 and 60 minutes for the boundary layer profiler and MST radar respectively, gave the best measure of turbulence intensity and variability. Median spectral widths gave the best average over that period, with two-sigma limits (where sigma is the standard deviation of spectral widths) giving the best representation of the variability in turbulence. Turbulent kinetic energies were derived from spectral widths; typical boundary layer values were 0.13 m 2.s (-2) with a two-sigma range of 0.04-0.25 m 2.s (-2), and peaked at 0.21 m 2.s (-2) with a two-sigma range of 0.08-0.61 m 2.s (-2). Turbulent kinetic energy dissipation rates were also calculated from spectral widths, requiring radiosonde measurements of atmospheric stability. Dissipation rates compared well width aircraft measurements, reaching peaks of 1x10 (-3) m 2.s (-3) within 200 m of the ground, and decreasing to 1-2x10 (-5) m 2.s (-3) near the boundary layer capping inversion. Typical boundary layer values were between 1-3x10 (-4) m 2.s (-3). Those values are in close agreement with dissipation rates from previous studies.

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Larsson, Helena. „Dubbla uppdrag : En kvalitativ studie av två profilerade och integrerade folk- och skolbibliotek“. Thesis, Uppsala University, Department of ALM, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-126334.

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The aim of this master’s thesis is to examine libraries which combine the functions of school- and public library and to evaluate the staff’s experience and attitude towards a library profile with the emphasis on children and youth. The purpose of the study is also to examine how the libraries work with several tasks and functions within different target groups with different needs.

With new institutionalism and Scandinavian institutional theory the thesis examine the library as an organization and what influences the construction. With a model that describes how the library constitutes four different rooms in the society I investigate the different functions.

The methodology is qualitative with interviews of five persons of the staff, four librarians and one library assistant. The study examines how the staff that works at two libraries under similar conditions experiences their tasks. Both libraries have a library profile and are school- and public libraries.

The results show that it can be a problem to combine two working cultures, teachers and librarians, from a normative perspective and cause problems with roll definitions. A library profile can be defined as an adaption to the market and the local needs should be considered in order to succeed. The context of local circumstances within the district such as social conditions and working methods should also be considered. It’s important to analyze what the library can do to justify their activity. The survey also showed that the two libraries were very different from each other and that the staff thinks differently about the profile and is differently accepted by the staff.

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Torun, Ahmet Refah. „Advanced manufacturing technology for 3D profiled woven preforms“. Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2011. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-71966.

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3D textile performs offer a high potential to increase mechanical properties of composites and they can reduce the production steps and costs as well. The variety of woven structures is enormous. The algorithms based on the conventional weaving notation can only represent the possible woven structures in a limited way. Within the scope of this dissertation, a new weaving notation was developed in order to analyze the multilayer woven structures analytically. Technological solutions were developed in order to guarantee a reproducible preform production with commingled hybrid yarns. Terry weaving technique can be utilized to create vertical connections on carrier fabrics, which makes it suitable for the development of complex profiles. A double rapier weaving machine was modified with electronically controlled terry weaving and pneumatic warp yarn pull-back systems. Various spacer fabrics and 3D profiles were developed. A linear take-up system is developed to assure reproducible preform production with a minimum material damage. Integrated cutting and laying mechanisms on the take-up system provides a high level of automation.

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Nilsson, Sverker. „Heapy: A Memory Profiler and Debugger for Python“. Thesis, Linköping University, Department of Computer and Information Science, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-7247.

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Excessive memory use may cause severe performance problems and system crashes. Without appropriate tools, it may be difficult or impossible to determine why a program is using too much memory. This applies even though Python provides automatic memory management --- garbage collection can help avoid many memory allocation bugs, but only to a certain extent due to the lack of information during program execution. There is still a need for tools helping the programmer to understand the memory behaviour of programs, especially in complicated situations. The primary motivation for Heapy is that there has been a lack of such tools for Python.

The main questions addressed by Heapy are how much memory is used by objects, what are the objects of most interest for optimization purposes, and why are objects kept in memory. Memory leaks are often of special interest and may be found by comparing snapshots of the heap population taken at different times. Memory profiles, using different kinds of classifiers that may include retainer information, can provide quick overviews revealing optimization possibilities not thought of beforehand. Reference patterns and shortest reference paths provide different perspectives of object access patterns to help explain why objects are kept in memory.

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Guillemette, Pascal. „Integration of UHF profiler information with bistatic measurements“. Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/MQ64364.pdf.

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Barman, Sarah Ann. „Measurement of profiled surfaces using polarising optical interferometry“. Thesis, King's College London (University of London), 1996. http://eprints.kingston.ac.uk/8943/.

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Shobaki, I. E. H. „The behaviour of profiled steel sheet/concrete slabs“. Thesis, University of Salford, 2000. http://usir.salford.ac.uk/2056/.

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The work presented in this thesis is concerned with the effect of shear-bond on the behaviour of profiled steel sheet/concrete composite slabs. A review of the previous work carried out to investigate the influence of shear bond in composite construction and the factors which may affect shear bond resistance is presented and discussed. Also, the different empirical shear-bond equations proposed and design methods for composite slabs are reviewed. A description of push-off and pull-out tests follows and several examples of concrete/profiled steel sheeting units were tested and the results discussed. These small scale tests provided information on the load/slip relationship which was used in the subsequent modelling of the full-scale composite slabs. Fullscale composite slab tests are then considered together with a discussion of results. These are analysed using the regression approach of British Standards and the Eurocode 4. Comparison is made with the design values using the partial interaction method. The comparison indicates that both design methods are valid with the regression approach being slightly more conservative. Finite element methods and their advantages are reviewed and the ANSYS software is introduced together with it's proprietary elements, material models and contact elements. This is followed by a description of three-dimensional finite element modelling of composite slabs (small and full scale). The load versus deflection, and load versus slip provide a comparison between the numerical analysis and test results. The finite element analysis of the composite slabs was successful. The failure load of each slab was modelled satisfactorily using the contact stiffness from the small-scale tests modified by a small percentage (less than 10%). A close correlation between the experimental and finite element analysis predictions for the load/slip and load/deflection behaviour was also obtained. Three-dimensional finite element modelling of embossments with different parameters for the steel sheet and concrete was carried out and conclusions drawn. The general conclusions of the work follows together with recommendations for future research.

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Wang, Hao. „Road Profiler Performance Evaluation and Accuracy Criteria Analysis“. Thesis, Virginia Tech, 2006. http://hdl.handle.net/10919/34419.

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Road smoothness is one of the most important road functional characteristics because it affects ride quality, operation cost, and vehicle dynamic load. There are many types of devices that measure the road profile, which is often used to compute different smoothness indices. The development of performance-based specifications and pavement warranties that use ride quality as a performance measure has increased the need for accurate measurement of pavement smoothness. For this reason, researchers have compared and evaluated the performance of available profilers and several profiler accuracy criteria have been proposed. However, there is not a definite answer on the ability of available profilers to accurately measure the actual road profile as well as the various smoothness indices. A recent profiler round-up compared the performance of 68 profilers on five test sections at Virginia Smart Road. The equipment evaluated included high-speed, light-weight, and walking-speed profilers, in addition to the reference device (rod and level). The test sites included two sites with traditional hot-mix asphalt (HMA) surfaces, one with a coarse-textured HMA surface, one on a continuously reinforced concrete pavement (CRCP), and one on a jointed plain concrete pavement (JCP). This investigation used a sample of the data collected during the experiment to compare the profiles and International Roughness Index (IRI) measured by each type of equipment with each other and with the reference. These comparisons allowed determination of the accuracy and repeatability capabilities of the existing equipment, evaluation of the appropriateness of various profiler accuracy criteria, and recommendations of usage criteria for different applications. The main conclusion of this investigation is that there are profilers available that can produce the level of accuracy (repeatability and bias) required for construction quality control and assurance. However, the analysis also showed that the accuracy varies significantly even with the same type of device. None of the inertial profilers evaluated met the current IRI bias standard requirements on all five test sites. On average, the profilers evaluated produced more accurate results on the conventional smooth pavement than on the coarse textured pavements. The cross-correlation method appears to have some advantages over the conventional point-to-point statistics method for comparing the measured profiles. On the sites investigated, good cross-correlation among the measured and reference profiles assured acceptable IRI accuracy. Finally, analysis based on Power Spectral Density and gain method showed that the profiler gain errors are nonuniformly distributed and that errors at different wavelengths have variable effects on the IRI bias.
Master of Science

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Gude, Maik, Florian Lenz, Andreas Gruhl, Bernhard Witschel, Andreas Ulbricht und Werner Hufenbach. „Design and automated manufacturing of profiled composite driveshafts“. De Gruyter, 2015. https://tud.qucosa.de/id/qucosa%3A38566.

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The high specific strength and stiffness characteristics of composite materials such as carbon fiber-reinforced plastic (CFRP) allow a significant weight reduction of the structural machine components such as automobile driveshafts. But high material cost and rather low productivity of the established manufacturing processes (e.g., filament winding) often inhibit the use of CFRP components in a high-volume car series. In this paper, a novel composite driveshaft system based on a profiled CFRP tube is presented. This system is designed to be produced by a continuous pultrusion process to achieve a significant reduction of the manufacturing costs. A cost assessment study was conducted to quantify the benefit of the developed continuous manufacturing process. In comparison with the state-of-the-art filament winding process, a cost reduction of 36% for the composite shaft body can be obtained. Moreover, the proposed fiber layup processes – braiding and continuous winding – offer the potential to manipulate the reinforcement architecture to maximize material utilization without reducing the manufacturing efficiency. This potential is investigated and validated by experimental tests. A difference in the load bearing capacity of more than 100% between different reinforcing architectures is shown.

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Fredmer, Anna Karin. „Varför profilerar sig skolor? : En intervjustudie relaterad till G.H. von Wrights handlingsteori om händelselogik“. Thesis, Stockholm University, Department of Education, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-8341.

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Studiens syfte var att undersöka varför skolor valde en specifik inriktning/profilering och ta reda på bakgrunden till och vilka händelser som låg bakom besluten samt att undersöka hur imple-menteringen fungerat.

De skolor som valdes ut hade samtliga en profilering som genomsyrade verksamheten. Skolle-dare för tre skolor med profilering mot rörelse/hälsa och tre skolor med profilen hjärnbaserat lärande/kreativitet belägna i Stockholm och dess grannkommuner intervjuades. Av dessa skolor var två friskolor och fyra kommunala skolor, två skolor fanns i Stockholm och övriga i när-kommuner. Till detta kom ytterligare en kommunal skola som inte hade profilerat sig.

Intervjuerna analyserades enligt von Wrights händelselogik som består av determinanterna normer/förväntningar, möjligheter, intentionerna önskan och pliktkänsla (utöver rollens förväntade) samt förmåga. I teorin ingår även epistemiska attityder men eftersom det endast var en intervju med respektive informant fanns inte möjlighet att analysera detta.

Studien påvisade fem olika varianter där samtliga skolledare bedömdes ha förmågan. 1) Skolledaren på en kommunal rörelse/hälsa skola bedömdes ha förmågan och möjligheten då det troligen var att förväntningar/krav och intentionerna önskan och pliktkänslan hade blivit internalise-rade då det var flera år sedan själva profileringen genomfördes. 2) Skolledaren på en friskola med rörelseinriktning bedömdes en mycket stark önskan men saknade en uttalad pliktkänsla utöver rollen. 3) Två skolledare (en rörelseskola och den utan profil) upplevde aktuella krav men varken förväntningar eller möjligheter. För dessa skolledare fanns inte intentionerna enligt min definition. 4) De två kommunala skolledarna på hjärnskolorna hade förväntningar och möjligheter och båda bedömdes som eldsjälar då det fanns starka intentioner utöver den förväntade rollen. 5) Den tredje hjärnskolan, en friskola, skiljde sig från de två andra hjärnskolorna genom att denna skolledare inte hade yttre förväntningar men starka intentioner.

Enligt von Wright finns det en filosofisk anledning att skilja mellan skäl för respektive motiv till en handling. Skälen rättfärdigar en handling medan motiven förklarar den. I studien framkom att skolledarna i variant 3 ovan rättfärdigade skälen och skolledarna i varianterna 2, 4 och 5 angav motiv till sin profilering. Skolledaren i variant 1 varken rättfärdigade eller motiverade profileringen.

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Bergström, Kousta Lia. „Lättläst lättare : Utformningen av ett grafiskt gränssnitt för en automatisk textförenklare profilerat mot webbredaktörer“. Thesis, Linköpings universitet, Institutionen för datavetenskap, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-129350.

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Syftet med denna studie var att ta fram ett förslag på hur ett gränssnitt för en automatisk textförenklare profilerad mot webbredaktörer vid Linköpings universitet skulle kunna se ut. För att åstadkomma en välgrundad utformning har studien undersökt webbredaktörers arbetssätt och behov, och utforskat lösningar på liknande problem i andra verktygsgenrer. För att uppnå syftet har tre frågeställningar ställts upp: 1) Hur kan ett stödverktyg för att skriva lättläst utformas för att passa webbredaktörer vid Linköpings universitet?, 2) Vad finns för existerande lösningar på liknande designproblem? Och 3) Givet funktionaliteten i verktyget, hur bör ett gränssnitt utformas? För att besvara den första frågeställningen utfördes intervjuer med sex olika webbredaktörer. I besvarandet av den andra frågeställningen utfördes en förebildsanalys på liknande verktyg för att identifiera potentiella lösningar. Slutligen presenteras en prototyp baserad på de första frågeställningarna och vissa typografiska avväganden som ett svarsförslag till den tredje frågeställningen. Resultaten visar på att ett textförenklingsgränssnitt profilerat mot webbredaktörer kräver skilda funktioner från textförenklingsverktyg riktade mot en målgrupp med lässvårigheter.

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Shibata, Seiya, Yuki Ando, Shinya Honda, Hiroyuki Tomiyama und Hiroaki Takada. „Automatic instrumentation of profilers for FPGA-based design space exploration“. IEEE, 2009. http://hdl.handle.net/2237/13976.

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Adachi, Ahoro. „An observational study of mesoscale phenomena with UHF wind profilers“. 京都大学 (Kyoto University), 2007. http://hdl.handle.net/2433/136957.

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Aziz, Ari. „Parametrisk studie av vippningsavstyvande stålbalksbjälklag utförda med I-profiler“. Thesis, KTH, Bro- och stålbyggnad, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-36951.

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Koch, Christian. „Trappetrinnets profil : En studie av alternative profiler på trappetrinnet“. Thesis, Linköping University, Linköping University, Department of Management and Engineering, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-18967.

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Gibbons, Richard. „A historical application profiler for use by parallel schedulers“. Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape11/PQDD_0027/MQ51588.pdf.

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Cochran, Eugene Rowland III. „Extending the measurement range of an optical surface profiler“. Diss., The University of Arizona, 1988. http://hdl.handle.net/10150/184531.

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This dissertation investigates a method for extending the measurement range of an optical surface profiling instrument. The instrument examined in these experiments is a computer-controlled phase-modulated interference microscope. Because of its ability to measure surfaces with a high degree of vertical resolution as well as excellent lateral resolution, this instrument is one of the most favorable candidates for determining the microtopography of optical surfaces. However, the data acquired by the instrument are restricted to a finite lateral and vertical range. To overcome this restriction, the feasibility of a new testing technique is explored. By overlapping a series of collinear profiles the limited field of view of this instrument can be increased and profiles that contain longer surface wavelengths can be examined. This dissertation also presents a method to augment both the vertical and horizontal dynamic range of the surface profiler by combining multiple subapertures and two-wavelength techniques. The theory, algorithms, error sources, and limitations encountered when concatenating a number of profiles are presented. In particular, the effects of accumulated piston and tilt errors on a measurement are explored. Some practical considerations for implementation and integration into an existing system are presented. Experimental findings and results of Monte Carlo simulations are also studied to explain the effects of random noise, lateral position errors, and defocus across the CCD array on measurement results. These results indicate the extent to which the field of view of the profiler may be augmented. A review of current methods of measuring surface topography is included, to provide for a more coherent text, along with a summary of pertinent measurement parameters for surface characterization. This work concludes with recommendations for future work that would make subaperture-testing techniques more reliable for measuring the microsurface structure of a material over an extended region.

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Gallocher, Stewart Craik. „The behaviour of composite walls with profiled steel sheeting“. Thesis, University of Strathclyde, 1993. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=21694.

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During the 1980's the application of composite slabs with profiled steel decking grew rapidly replacing reinforced concrete flooring systems. Reductions in construction time and costs assisted in this rapid shift in building practice away from more traditional methods towards the currently popular "Fastrack" construction. It is therefore a logical extension to investigate the possible use of profiled steel decking as composite walling. This thesis investigates the possible application of double-skin composite walls with a concrete core through experimental and theoretical studies of the behaviour. The experimental investigations focus on a series of four full-scale pilot tests where the performance at the wet concrete stage before curing and the behaviour under a concentric axial lood is studied. Various boundary and end reinforcement details are tried. Analytical equations based on one-dimensional analysis techniques are derived to give linear elastic solutions to the stresses and strains formed in each layer. The critical buckling load is also calculated. Further materially non-linear equations including the P-∆ effect are generated. The profiled steel sheeting is shown to be effective formwork, resisting the lateral pressures developed by the wet concrete. The critical nature of the interface bond behaviour between the steel and concrete faces is shown to be of prime importance in determining the axial capacity of the walls. Local buckling of the steel sheeting is considered of secondary importance being easier to predict and control. The problems associated with the possible design of double-skin composite walls are discussed concluding that the axial capacity at present should be based on the capacity of the concrete alone. Further research directions are also outlined.

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Yuan, Hui. „The resistances of stud shear connectors with profiled sheeting“. Thesis, University of Warwick, 1996. http://wrap.warwick.ac.uk/36287/.

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This thesis presents the study of the static behaviour of stud shear connectors welded through profiled sheeting and the fatigue resistances of the connectors in composite bridges. In the presence of profiled sheeting in a composite beam, the resistance of stud connectors to static shear is influenced by the geometry of the ribs and the position of the studs within them. This is allowed for in the existing methods by applying a reduction factor to the resistance of the stud in a solid slab, but a study of the results of 203 push-out tests showed that the influences are not taken into account properly. The reason, revealed by 16 new push-out tests with transverse sheeting and 18 with parallel sheeting, is that the existing methods do not distinguish between the various failure modes. New conceptual and mathematical models are developed with respect to the different failure modes. For transverse sheeting, up to nine parameters are involved, among which five are shown by statistic analyses to have negligible influence. Based on the other four, simpler expressions for reduction factors are derived, and the characteristic resistances (5% fractile) are given. For parallel sheeting, however, it is found that the reduction factor method used in the existing models is not suitable, because the mechanism of load transfer is different. On a whole, the new models improve the prediction of 95% of all the valid reported test results, from a range -40% to +100% to within +11%. The fatigue resistances of stud connectors in composite bridges are studied statistically using 115 sets of reported data. It is found that the testing methods have significant influence on the results, and are the reason for the discrepancies between the existing models. A new model is proposed, based on the most reliable group of data.

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Stockhausen, William T. „Directional Wave Spectra using an Acoustic Doppler Current Profiler“. W&M ScholarWorks, 1994. https://scholarworks.wm.edu/etd/1539617724.

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McLaren, Greg. „QProf--a scalable profiler for the Q back end“. Thesis, Massachusetts Institute of Technology, 1995. http://hdl.handle.net/1721.1/36582.

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Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1995.
Includes bibliographical references (leaves 129-130).
by Greg McLaren.
M.Eng.

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Gifford, Chandler. „Design and Analysis of an Instrumenting Profiler for Webassembly“. DigitalCommons@CalPoly, 2019. https://digitalcommons.calpoly.edu/theses/2039.

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This thesis presents the design, implementation, and analysis of WasmProf, an instrumenting profiler for WebAssembly programs. WebAssembly is a compiled language designed for use on the web that, at the time of this writing, is still being actively developed. At present, performance analysis for WebAssembly programs mostly consists of browsers’ built-in sampling profilers. These profilers work well in many cases but only give a statistical estimation of the distribution of function calls and are, therefore, not well-suited for more fine-grained analysis. The WasmProf instrumenting profiler fills this analysis gap. WasmProf is capable of tracking the number of calls made and the time spent in every function called within the profiled program. Analysis of WasmProf demonstrates performance equivalent to or slightly better than similar tools that perform instrumentation and dynamic analysis on WebAssembly programs.

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Homberg, Jeroen. „Zelfstandige behandelcentra in de branding "positioneren en profileren met een merk" /“. Rotterdam : Erasmus Universiteit, 2006. http://hdl.handle.net/2105/3952.

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Gustafsson, Robert. „Grafisk profilering: Skara Campus AB : att skapa en logotyp samt att grafiskt profilera ett företag“. Thesis, University of Skövde, School of Humanities and Informatics, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-2414.

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Gidlöf, Veronica. „Färgstyrning av kontorsutrustning“. Thesis, Högskolan Dalarna, Grafisk teknik, 2001. http://urn.kb.se/resolve?urn=urn:nbn:se:du-3552.

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Color management has become more common now than ever in the graphic trade. Calibration andcharcterization are words that are mentioned very often when it comes to controlling colors andwhen you want a printed picture to look the same as an original photograph. The problem is thatthere are not so many people that has the knowlegde about this subject. Even if a printer supportscolor management it is not sure that the result is going to be satisfied and that a printed picture isgoing to look the same as the original.The printers which were used were Hp DeskJet 970 Cxi, Xerox Docu Color 12 and AgfaChromapress 50i. The theory of color, colour management and the equipment which were usedare described in the first stage. The second stage describes calibration and characterization ofmonitors, scanners and printers. Finally the result of created ICC-profiles is set by visual comparisionof a photographs original colours and a scanned and printed photograph.The results of calibration and characterization were varying a lot. Agfa Chromapress 50i was theonly printer which could produce a succesful calibration. Agfa Chromapress 50i and XeroxDocuColor 12 gave the best results when comparing original photographs with printed pictures ifthey were separated with ICC-profiles. ICC-profiles created for Hp DeskJet 970 Cxi achievedundesirable effects. This was the only printer that gave a bad result both with and without ICCprofiles.The reason for this miserable result can depend on the printers unability to fully supportcolor management.

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Andréasson, Linda, und Charlotta Windeman. „Meningen måste ju vara att få folk till butiken : en kvalitativ studie av ICA respektive Coop:s profiler och images“. Thesis, University West, Department of Economics and Informatics, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:hv:diva-845.

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Både ICA och Coop vill genom reklammaterialet förmedla en profil av välkända varumärken, förmånliga erbjudanden och kvalitet, vilket båda har lyckats att överföra till fokusgrupperna. Fokusgrupperna ansåg att reklamfilmer från Coop var tråkiga, traditionella och produktfokuserade medan ICA: s upplevdes som sevärd och rolig underhållning. Medan ICA vill förmedla gemenskap i analysmaterialet vill Coop förmedla en professionell relation. De vill båda skapa trovärdighet och identifikation samt kärlek och välkomnande i det undersökta materialet. Båda har lyckats att skapa igenkännande och trygghet, men Coop har inte lyckats att förmedla den professionella relationen till fokusgrupperna. Med ICA kände fokusgrupperna gemenskap och förväntningar, inte med Coop. Fokusgrupperna förknippade ICA med en liten mataffär. Coop förknippades av fokusgrupperna med en stormarknad och stort produktutbud.

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Nakazawa, Takeshi. „THREE-DIMENSIONAL NON-CONTACT SURFACE PROFILERS FOR SEMICONDUCTOR IC PACKAGE INSPECTION“. Diss., The University of Arizona, 2011. http://hdl.handle.net/10150/205472.

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The subject of this dissertation is the development of three-dimensional (3D) surface profilers for semiconductor back-end inspection. The value of this study is: 1) to provide a new phase-to-height relationship for Fourier Transform Profilometry (FTP) that is universal as it allows alternate FTP system architectures for a micrometer scale object measurement, and 2) to provide a new method for full field substrate warpage and ball grid array (BGA) coplanarity inspection using machine vision. The desire to increase electronic device performance has resulted in denser and smaller IC packaging. As the dimensions of the devices decrease, the requirements for substrate flatness and surface quality become critical in avoiding device failure. For a high yield production, there is an increasing demand in the requirement for the dimensional verification of height, which requires 3D inspection. Based on the current demands from the semiconductor industry, this dissertation addresses the development of fast in-line surface profilers for large volume IC package inspection. Specifically, this dissertation studies two noncontact surface profilers. The first profiler is based on FTP for measuring the IC package front surface, the silicon die and the epoxy underfill profile. The second profiler is based on stereovision and it is intended for inspecting the BGA coplanarity and the substrate warpage. A geometrical shape based matching algorithm is also developed for finding point correspondences between IC package images. The FTP profiler provides a 1 σRMS error of about 4 μm for an IC package sample in an area of 14 mm x 6.5 mm with a 0.13 second data acquisition time. For evaluating the performance of the stereovision system, the linearity between our system and a confocal microscope is studied by measuring a particular IC sample with an area of 38 mm x 28.5 mm. The correlation coefficient is 0.965 and the 2σdifference in the two methods is 26.9 μm for the warpage measurement. For BGA coplanarity inspection the correlation coefficient is 0.952 and the 2difference is 31.2 μm. Data acquisition takes about 0.2 seconds for full field measurements.

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Solliec, Laurent. „Real time flow rate modelling in disturbed conditions from velocity profilers“. Thesis, Strasbourg, 2013. http://www.theses.fr/2013STRAD052.

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L'installation de systèmes de mesure est d'une utilisation cruciale pour la gestion des réseaux d'assainissement ou des canaux d 'irrigation. La plupart des structures gouvernementales ou privées ainsi que les agglomérations s'équipent de systèmes de mesure de débit afin de se conformer avec la législation européenne. La plupart des débitmètres fournissent des données en temps réel i.e. l'information est transmise en permanence. aux centrales d'acquisition pour une gestion de l'architecture du système de canaux. La mesure en canaux ouverts est souvent ultrasonore. L'objectif de cette thèse est de proposer une méthode en temps réel afin de corréler les vitesses locales en une vitesse moyenne dans les conditions observables par les utilisateurs en canaux ouverts. Les thématiques impliquées à cette étude sont multiples: les techniques de mesure, l'hydrodynamique en canaux ouverts représentée par la turbulence (ici plus particulièrement les courants secondaires), les lois de paroi, le nombre de Froude ... l'ensemble de ces thématiques doit être investi en canaux pleinement développés où les conditions sont stables dans l'espace mais aussi pour des conditions perturbées telles que les structures hétérogènes ou transitoires.La technique de mesure est un point clé: quelle est la technique la plus applicable aux conditions de mesure i.e. les canaux étroits? Les canaux étroits varient très rapidement en tem1es de taux de remplissage : la technique la plus adaptée est le profileur ultrasonique.La compréhension des effets hydrodynamiques est essentielle afin de développer un modèle de conversion. Les canaux droits sont influencés par l'hydrodynamique des écoulements, la géométrie mais aussi et principalement par leurs interactions. En canaux droits, les courants secondaires sont primordiaux même s'ils se traduisent par un effet le plus observable : le dip-phénomène, i.e. la présence d'un maximum de vitesse non pas à la surface d'eau mais en dessous pour les canaux étroits. Ces courants secondaires sont fortement sensibles au rapport d'aspect, la géométrie et la variabilité de la rugosité le long de la paroi, passablement sensible à la rugosité et indépendant du nombre de Froude .Les perturbations, à l'aval desquelles sont installés les débitmètres ultrasonores, sont majoritairement représentées par les coudes et les jonctions. Dans les coudes, les tourbillons sont liés aux forces centrifuges (gros tourbillon) et la turbulence (petit tourbillon). Pour les jonctions, les tourbillons diffèrent des deux précédentes configurations avec la présence à l'aval de la jonction de 3 tourbillons (due à un étirement des tourbillons par l'arrivée latérale). Les capteurs ne sont pas installés directement au niveau de la perturbation mais à l'aval. Dans la littérature, les distances requises pour retrouver des conditions proches de l'écoulement pleinement développé devraient excéder environ 50 hauteurs d'eau. En pratique, ces distances sont plus proches de5-10 fois la largeur du canal ou du tirant d'eau. L'application de modèle basée sur l'écoulement pleinement développé corrélé à un capteur n'est pas recommandable
The installation of flow rate measurement systems is an important factor in regard to the management of sewer and irrigation networks. Most cities and infrastructure succeed in obtaining sufficient flow measurements to satisfy European Regulation rules. Most flow meters comprise real time systems; this means that the information is permanently transferred to a data base for the management and optimization of the particular network. The measurement technology deployed is typically ultrasound based. Within the number of measurement points a high percentage are often deficient and create specific difficulties (>75% of Venturi flumes are inaccurate according to Anglian Water, a UK water and wastewater company). The study presented here focuses on flow meters which calculate discharge using measurement of level, cross sectional area and the correlation of local velocity to generate a mean value. The aim of this thesis is to propose a real time method to enable determination of this “conversion” under realistic configurations which Users find in open channels. The synthesis of measurement points through an understanding of hydraulic conditions (Bonakdari, 2006) provides a method to create flow data allowing local point velocities to be converted into an overall mean value. The approach has limitations and may fail in industrial situations but can be used for very complex configurations. It also requires specialists with knowledge of the technique who are rarely available to Users. What is proposed here is an alternative method to Bonakdari for simpler configurations. The aim is to evaluate the flow rate with acceptable accuracy using these technics and to establish a relationship between local velocities and the mean velocity according to Regulatory requirements (8% are required in UK, 5 to 8% in Germany depending on area). The individual components are here: the measurement techniques; the hydrodynamics represented with the turbulence (secondary currents in open channels); the wall / roughness effects; the Froude number … for fully developed conditions where conditions become stable in space but for disturbed conditions, as well such as heterogeneous structures or transition conditions

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Hallberg, Björn. „Spillvärmeåtervinning ur kylvattensystemet ismältverket på Sapa Profiler AB i Sjunnen“. Thesis, Linköpings universitet, Energisystem, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-67641.

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The smelting process at Sapa Profiler AB in Sjunnen generates large quantities of waste heat which is absorbed by the cooling water when the aluminum is cooled down. This paper is the result of a Master’s Degree Project aiming to present the conditions for recycling the waste heat. The cooling water absorbs the heat from the aluminum at an average rate of 600 kW and the paper shows that it can be used to replace electrical power consumption for heating the production plant’s facilities. The total savings potential comes to 464 000 SEK/year which represents a yearly reduction of 10-420 tons in CO2 emissions. Measures were taken already during the ongoing project in order to improve the possibilities of recycling the waste heat, which is suffering from discontinuous flows and low temperatures. In the paper a model is presented of how relatively high temperatures and continuous flows can be attained with the help of a warm water tank. Once he continuous flow is created, the waste heat can be exchanged to a separate flow which serves to transport the waste heat to the local heat distribution systems. Despite the significant savings potential, the necessary investment of 3 650 000 SEK makes for a pay-back time of at least eight years.

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