Search Results - "Žic, Mark"

Application of self-adapting regularization, machine learning tools and limits in Levenberg–Marquardt algorithm to solve CNLS problem by Žic, Mark, Pereverzyev, Sergiy

“…[Display omitted] •Automatic differentiation in Levenberg-Marquardt algorithm.•Application of PyTorch open-source machine learning framework.•Joint application…”
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An alternative approach to solve complex nonlinear least-squares problems by Žic, Mark

“…In this work, a hybrid electrochemical impedance spectroscopy (EIS) strategy was developed with the aim to solve complex nonlinear least-square (CNLS)…”
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Optimizing noisy CNLS problems by using Nelder-Mead algorithm: A new method to compute simplex step efficiency by Žic, Mark, Pereverzyev, Sergei

“…Nelder-Mead “simplex” algorithm (NMA) is a derivative-free algorithm that can be used to solve complex nonlinear least-squared (CNLS) problems. NMA can fit…”
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Solving CNLS problems using Levenberg-Marquardt algorithm: A new fitting strategy combining limits and a symbolic Jacobian matrix by Žic, Mark, Subotić, Vanja, Pereverzyev, Sergei, Fajfar, Iztok

“…The Levenberg-Marquardt algorithm (LMA) is generally used to solve diverse complex nonlinear least square (CNLS) problems and is one of the most used…”
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Preparation of a PANI/ZnO Composite for Efficient Photocatalytic Degradation of Acid Blue by Gilja, Vanja, Vrban, Ivan, Mandić, Vilko, Žic, Mark, Hrnjak-Murgić, Zlata

“…Polyaniline/zinc oxide (PANI/ZnO) composite photocatalysts were prepared from neutral media by in situ chemical oxidation of aniline (ANI) in the presence of…”
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Flexural Strength and Morphological Study of Different Multilayer Zirconia Dental Materials by Labetić, Andrea, Klaser, Teodoro, Skoko, Željko, Jakovac, Marko, Žic, Mark

“…Nowadays, yttria (Y )-stabilized ZrO (Y-TZP) is the most commonly used material in dental prosthetics. Y-TZP dental ceramics are mainly stabilized via the…”
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Solving CNLS problems by using Levenberg-Marquardt algorithm: A new approach to avoid off-limits values during a fit by Žic, Mark

“…Complex nonlinear least square problems (CNLS) are generally solved by using the Levenberg-Marquardt algorithm (LMA), which is utilized in specialized EIS…”
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Adaptive multi-parameter regularization approach to construct the distribution function of relaxation times by Žic, Mark, Pereverzyev, Sergiy, Subotić, Vanja, Pereverzyev, Sergei

“…Determination of the distribution function of relaxation times (DFRT) is an approach that gives us more detailed insight into system processes, which are not…”
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The influence of the PANI structure on the conductive mechanism and on the electrical equivalent circuit analysis by ZIC, Mark

“…The influence of the PANI structural changes during the oxidation of PANI on conductive mechanism and on the electrochemical impedance analysis was…”
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Impact of Sandblasting on Morphology, Structure and Conductivity of Zirconia Dental Ceramics Material by Jakovac, Marko, Klaser, Teodoro, Radatović, Borna, Bafti, Arijeta, Skoko, Željko, Pavić, Luka, Žic, Mark

“…Over the last decade, zirconia (ZrO2)-based ceramic materials have become more applicable to modern dental medicine due to the sustained development of diverse…”
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Analysis of Variables Influencing Scour on Large Sand-Bed Rivers Conducted Using Field Data by Harasti, Antonija, Gilja, Gordon, Adžaga, Nikola, Žic, Mark

“…Throughout the lifespan of a bridge, morphological changes in the riverbed affect the variable action-imposed loads on the structure. This emphasizes the need…”
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The Effect of Y3+ Addition on Morphology, Structure, and Electrical Properties of Yttria-Stabilized Tetragonal Zirconia Dental Materials by Jakovac, Marko, Klaser, Teodoro, Bafti, Arijeta, Skoko, Željko, Pavić, Luka, Žic, Mark

“…Zirconia (ZrO2), a widely known material with an extensive range of applications, is especially suitable for dental applications. This kind of dental material…”
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Stability and Synergistic Effect of Polyaniline/TiO₂ Photocatalysts in Degradation of Azo Dye in Wastewater by Gilja, Vanja, Novaković, Katarina, Travas-Sejdic, Jadranka, Hrnjak-Murgić, Zlata, Roković, Marijana Kraljić, Žic, Mark

“…The polyaniline/TiO₂ (PANI/TiO₂) composite photocatalysts were prepared by the in situ chemical oxidation of aniline (An) in the presence of TiO₂ particles…”
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Surface Characterization and Conductivity of Two Types of Lithium-Based Glass Ceramics after Accelerating Ageing by Jakovac, Marko, Klaser, Teodoro, Radatović, Borna, Skoko, Željko, Pavić, Luka, Žic, Mark

“…In this study, two different dental ceramics, based on zirconia-reinforced lithium-silicate (LS1) glass-ceramics (Celtra Duo, Dentsply Sirona, Bensheim,…”
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Influence of the OPDA additions on impedance response and on anion exchange property of the modified PANI by ZIC, Mark

“…The addition of the ortho-phenylenediamine (OPDA) to aniline solution resulted in a slower polymer synthesis rate and in the modified PANI structural change…”
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The effect of the PANI-free volume on impedance response by ZIC, Mark

“…The influence of polyaniline (PANI) layer thickness and applied potential on impedance characteristics was investigated. The impedance response of PANI layers,…”
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Electrical Properties of Two Types of Lithium-Based Glass Ceramics by Jakovac, Marko, Žic, Mark, Pavić, Luka, Klaser, Teodoro

“…BackgroundThe dental ceramic materials are constantly being developed due to their continuous clinical application in the field of esthetic dentistry. Glass…”
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The Impact of In Situ Polymerization Conditions on the Structures and Properties of PANI/ZnO-Based Multiphase Composite Photocatalysts by Vanja Gilja, Ivana Živković, Teodoro Klaser, Željko Skoko, Marijana Kraljić Roković, Zlata Hrnjak-Murgić, Mark Žic

“…We have synthesized polyaniline/ZnO-based (PANI/ZnO) multiphase composite photocatalysts from acid media by a newly proposed two-step in situ polymerization…”
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Electrochemical Characterisation of Sol-Gel Derived SnO2 for Supercapacitor Application by Kraljić Roković, Marijana, Ljubek, Gabrijela, Žic, Mark, Popović, Jasminka

“…Pseudocapacitive properties of SnO2 and Sb-doped SnO2 were determined in 0.5 mol dm–3 KCl solution. The samples were prepared by sol-gel method and analysed by…”
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Microstructural changes in particles detected during the transformation from β-FeOOH to α-Fe2O3 in dense aqueous suspensions by ZIC, Mark, RISTIC, Mira, MUSIC, Svetozar

“…The hydrothermal transformation from beta-FeOOH to alpha-Fe2O3 in dense aqueous suspensions, obtained by partial neutralization of concentrated FeCl3 solution…”
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