12 research outputs found

    Optimerad rendering av fluid meshes

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    Simuleringen av vätskor är idag en viktig del inom både film-, spel- och reklamindustrin. Detta kräver dock mycket av hårdvaran vilket saktar ner processen att rendera markant. I detta projekt forskades det inom optimering av renderingstekniker för att göra det lättare att rendera fram kvalitativa resultat när man använder sig av fluids i program för 3D-grafik. Arbetet innehåller en undersökning där testpersoner bedömt ett antal renderingar samt de optimerade inställningar som används till renderin

    Närvarodetektering i pool

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    This Bechelor thesis is written on behalf of Verisure Innovation AB in Mamö, Sweden. The authors were studying Bachelors of Sience in Electrical Engineering with focus on automation at Lunds Tekniska Högskola, Campus Helsingborg. The main goal of the thesis was to develop a prototype of an alarmsystem for domestic swimming pools. The system was supposed to sound an alarm if a human being or animal were to fall in to the pool. If the prototype was a success the company could decide later if they wanted to proceed with the development of the product and add it to their product catalog. The first thing that was done was to study what kind of sensors, and thereby also which physical phenomena that could be used. After this a short survey of available pool alarms were conducted, the advantages and disadvantages of the products were analyzed. Two alarms were selected and tested to determine their functionality. The developed device consisted of the parts; the sensors, the hardware and the detection algorithm. The sensors that were chosen where piezotranducers, the hardware was composed of two amplifiers and a developmentboard from STmicroelectronics with a ARM-Cortex M4 processor. The software was developed in an onlinecompiler, “mbed” The software controlled the signals that were sent to and received by the sensors; the received signals were first digitalized in an ADC and later run through a detection algorithm to determine if the device should sound the alarm

    nbis_reproducible_research.pdf

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    Introductory slides for the NBIS reproducible research course (http://nbis-reproducible-research.readthedocs.io)

    nbis_reproducible_research.pptx

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    Introductory slides for the NBIS reproducible research course (http://nbis-reproducible-research.readthedocs.io)

    Slides for NBIS Tools for Reproducible Research (Stockholm, March 2018)

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    Slides for NBIS Tools for Reproducible Research (Stockholm, March 2018

    Genome-scale modeling enables metabolic engineering of Saccharomyces cerevisiae for succinic acid production

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    In this work, we describe the application of a genome-scale metabolic model and flux balance analysis for the prediction of succinic acid overproduction strategies in Saccharomyces cerevisiae. The top three single gene deletion strategies, Delta mdh1, Delta oac1, and Delta dic1, were tested using knock-out strains cultivated anaerobically on glucose, coupled with physiological and DNA microarray characterization. While Delta mdh1 and Delta oac1 strains failed to produce succinate, Delta dic1 produced 0.02 C-mol/C-mol glucose, in close agreement with model predictions (0.03 C-mol/C-mol glucose). Transcriptional profiling suggests that succinate formation is coupled to mitochondrial redox balancing, and more specifically, reductive TCA cycle activity. While far from industrial titers, this proof-of-concept suggests that in silico predictions coupled with experimental validation can be used to identify novel and non-intuitive metabolic engineering strategies

    Att leda en förändring

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    Syfte: Syftet med denna uppsats är att ur ett ledningsperspektiv studera organisationsförändringar där medarbetare involveras. Hur kan ledningen agera för att involvera medarbetare och samtidigt bibehålla en fokus på de syften och mål man har med förändringsvision? Metod: En kvalitativ ansats där empiri införskaffas genom en fallstudie av Swedbank med semistrukturerade intervjuer. Empirin har sedan analyserats för att appliceras på för studien relevanta teorier och modeller. Teoretiska perspektiv: Studiens teoretiska ansats utgår från Kotters sekventiella förändringsmodell. Kotters modell kompletteras med Simons informationsbaserade styrsystem för att tolka hur ledningen styr förändringsarbetet. Empiri: Det empiriska materialet baseras på sex intervjuer med medarbetare från olika hierarkiska nivåer på Swedbank. Resultat: Kotters förändringsmodell är ett bra verktyg för ett företags ledning att genomföra en förändringsprocess. Dock bör denna modell kompletteras med Simons informationsbaserade system för att klargöra hur involvering av medarbetare ska ske utan att man tappar den strategiska riktningen

    SysBioChalmers/RAVEN: v2.8.6

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    <ul> <li>fix:<ul> <li><code>checkInstallation</code> (via <code>solverTests</code>) will not report soplex as <code>fail</code> on Windows when using RAVEN-provided binary (solves #513).</li> </ul> </li> </ul&gt

    SysBioChalmers/RAVEN: v2.8.5

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    <ul> <li>feat:<ul> <li>Distribute SoPlex binary for Windows with RAVEN, as another open-source alternative, slower than glpk, but suitable for MILP. Installation instructions are <a href="https://github.com/SysBioChalmers/RAVEN/wiki/Installation#solvers">updated</a>.</li> <li><code>readYAMLmodel</code> should always make model.c-field, even if no objective function is specified (solves #509).</li> <li><code>standardizeGrRules</code> should throw error if no grRules field is found.</li> </ul> </li> <li>refactor:<ul> <li><code>addRxnsGenesMets</code> more detailed error message if reactions cannot be found.</li> <li><code>getAllowedBounds</code> use progressbar for reporting status.</li> </ul> </li> </ul&gt
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