1. Prilagoditev referenc navora za zagotavljanje stabilnosti sistema : diplomsko deloMihael Franko Jerele, 2023, undergraduate thesis Abstract: Diplomsko delo je osredotočeno na razvoj oziroma izpeljavo ustreznega modela dinamike električnega kolesa, opremljenega z dvema neodvisnima elektromotorjema, pri čemer je cilj raziskati njegovo dinamiko in zmogljivost. Eksperimentalno-analitični rezultati modeliranja oziroma dinamične lastnosti analitičnega modela so bile preverjene z uporabo simulacijskih orodij MATLAB/Simulink pri različnih pogojih vožnje, vključno z manevriranjem v ovinkih. V sklepnem delu so povzete prednosti in omejitve dobljenega modela električnega kolesa ter poudarjene možnosti za nadaljnje izboljšave, kot je denimo optimizacija krmilnega algoritma. Diplomsko delo v celoti predstavlja korak naprej k boljšemu razumevanju in razvoju električnih koles z več motorji.
Keywords: matematični model, fizika koles, električna vozila, dvopogonsko električno kolo, simulacija
Published in DKUM: 18.01.2024; Views: 285; Downloads: 17
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2. Amoxicillin doped hyaluronic acid/fucoidan multifunctional coatings for medical grade stainless steel orthopedic implantsMatej Bračič, Sanja Potrč, Matjaž Finšgar, Lidija Gradišnik, Uroš Maver, Hanna Budasheva, Dorota Korte, Mladen Franko, Lidija Fras Zemljič, 2023, original scientific article Abstract: This work investigated the potential of amoxicillin-doped hyaluronic acid/fucoidan multifunctional coatings on medical grade stainless steel as biocompatible, osteointegration enhancing, antimicrobial, and bacterial biofilm inhibiting coatings for orthopedic implants. The coatings were prepared by layer-by-layer spin coating and confirmed by optical contact angle goniometry and infrared spectroscopy. Time-of-flight secondary ion mass spectrometry showed a homogeneous distribution of the individual layers. In contrast, thermal diffusivity, and thermal conductivity measurements by photothermal beam deflection spectrometry showed diffusion of the amoxicillin into the hyaluronic acid and fucoidan layers. In vitro release of amoxicillin showed complete release within one hour, as reflected by the formation of inhibition zones against Staphylococcus aureus and Escherichia coli. Synergistic effects were observed between the hyaluronic acid and amoxicillin in inhibiting S.Aureus biofilm, and between the fucoidan and amoxicillin in improving the antioxidant properties by an ABTS radical scavenging assay. Biocompatibility was determined with human osteoblasts, confirming the potential of such multifunc- tional coatings to enhance the bioactivity of steel-based orthop edic implants.
Keywords: orthopedic implant, medical grade stainless steel, amoxicillin, hyaluronic acid, fucoidan, multifunctional coating
Published in DKUM: 18.08.2023; Views: 588; Downloads: 108
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3. Razvoj večnamenskih avksetičnih celičnih struktur : zaključno poročilo temeljnega raziskovalnega projektaMatej Vesenjak, Srečko Glodež, Zoran Ren, Miran Ulbin, Matej Borovinšek, Nejc Novak, Marko Šori, Jernej Klemenc, Marko Nagode, Aleš Gosar, Andrej Škrlec, Mitja Franko, Tadej Kocjan, Dejan Tomažinčič, 2021, final research report Keywords: materiali, avksetične celične strukture, mehanske lastnosti, deformacije, konstruiranje
Published in DKUM: 25.04.2022; Views: 1078; Downloads: 57
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4. Analiza vibracijskega utrujanja sesalne cevi črpalke olja v motorju z notranjim zgorevanjem : magistrsko deloMarko Zadravec, 2021, master's thesis Abstract: S pomočjo numeričnih simulacij po metodi končnih elementov, izračuna lastnih vrednosti, vzbujanja in izračuna varnostnih faktorjev, nam je v okviru magistrskega dela uspelo medsebojno primerjati in oceniti dve varianti sesalne cevi za olje motorja TCD 3.6 L4. Vrednotenje konceptnih variant je potekalo na podlagi realnih obremenitev, pridobljenih z meritvami med delovanjem motorja. Ugotovili smo, da je nova konceptna varianta ustrezna, saj je bistveno bolj toga kot obstoječa varianta sesalne cevi za olje.
Keywords: sesalna cev črpalke olja, vrednotenje variant, MKE
Published in DKUM: 28.09.2021; Views: 824; Downloads: 2
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5. Numerična analiza nosilca kompresorja klime : diplomsko deloMarko Zadravec, 2019, undergraduate thesis Abstract: V okviru diplomskega dela smo s pomočjo statičnih analiz nosilca kompresorja klime, izvedenih v programskem paketu ABAQUS CAE 2018, rešili problem, povezan s prevelikimi pomiki nosilca in kompresorja. Na podlagi rezultatov računalniških simulacij posameznih variant smo s postopnim dodajanjem reber in pritrditvijo dodatnega podpornega nosilca direktno na blok motorja TCD 2.2 L3 dosegli kar 40,8 % zmanjšanje pomika nosilca, iz začetnih 0,1463 mm na končnih 0,0866 mm.
Keywords: Nosilec kompresorja klime, MKE, Statične analize
Published in DKUM: 13.09.2019; Views: 1404; Downloads: 37
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6. Optimization of machining parameters for turning operation with multiple quality characteristics using Grey relational analysisFranko Puh, Zoran Jurković, Mladen Perinic, Miran Brezočnik, Stipo Buljan, 2016, original scientific article Abstract: Optimization of machining processes is essential for achieving of higher productivity and high quality products in order to remain competitive. This study investigates multi-objective optimization of turning process for an optimal parametric combination to provide the minimum surface roughness (Ra) with the maximum material-removal rate (MRR) using the Grey–Based Taguchi method. Turning parameters considered are cutting speed, feed rate and depth of cut. Nine experimental runs based on Taguchi’s L9 (34) orthogonal array were performed followed by the Grey relational analysis to solve the multi- response optimization problem. Based on the Grey relational grade value, optimum levels of parameters have been identified. The significance of parameters on overall quality characteristics of the cutting process has been evaluated by the analysis of variance (ANOVA). The optimal parameter values obtained during the study have been validated by confirmation experiment.
Keywords: ANOVA, Grey relational analysis, multi-objective optimization, Taguchi method, turning
Published in DKUM: 12.07.2017; Views: 1346; Downloads: 405
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7. Multi-response optimization of turning parameters using the Grey-Based Taguchi methodFranko Puh, Miran Brezočnik, Zoran Jurković, Goran Cukor, Mladen Perinic, Milenko Sekulić, 2015, published scientific conference contribution Keywords: Grey Relational analysis, Taguchi method, multi-response optimisation
Published in DKUM: 02.03.2016; Views: 1740; Downloads: 58
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8. Učni načrt : neobvezni izbirni predmetGorazd Fišer, Franko Florjančič, Srečko Glodež, Drago Slukan, Andrej Šafhalter, 2013, dictionary, encyclopaedia, lexicon, manual, atlas, map Keywords: učni načrti, tehnika
Published in DKUM: 21.12.2015; Views: 2730; Downloads: 84
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9. Plikacija notranje karotidne arterije : naše izkušnjeVojko Flis, Erih Tetičkovič, Božidar Mrđja, Franko Milotič, Barbara Štirn, Nina Kobilica, Andrej Bergauer, 2010, professional article Keywords: plikacija, pentljavost, elongacija, karotidna arterija, endartrektomija, transkranialni dopler
Published in DKUM: 10.07.2015; Views: 1786; Downloads: 65
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10. Učni načrt : program osnovnošolskega izobraževanjaAmand Papotnik, Franko Florjančič, Gerhard Angleitner, Srečko Glodež, Ludvik Hajdinjak, Beno Kraner, Slavko Kocijančič, Gorazd Planinšič, Ferdinand Trenc, Tadej Tuma, 2002, dictionary, encyclopaedia, lexicon, manual, atlas, map Keywords: učni programi, osnovne šole
Published in DKUM: 10.07.2015; Views: 2335; Downloads: 119
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