2701. Implementation of high performance liquid chromatography coupled to thermal lens spectrometry (HPLC‑TLS) for quantification of pyranoanthocyanins during fermentation of Pinot Noir grapesJelena Topič Božič, Lorena Butinar, Natka Ćurko, Karin Kovačević Ganić, Branka Mozetič Vodopivec, Dorota Korte, Mladen Franko, 2020, izvirni znanstveni članek Opis: In this work high performance liquid chromatography coupled to thermal lens spectrometry (HPLC-TLS) was applied for monitoring of vinylphenolic pyranoanthocyanins formation during the fermentation of Pinot Noir wines. Vinylphenolic pyranoanthocyanins are wine pigments, present in low concentrations, but very important for wine colour stability.
Fermentation process was conducted with four different yeast strains, used as starters, either in sequential fermentation of non-Saccharomyces with S. cerevisiae yeast or as single fermentation with S. cerevisiae yeasts in order to test the applicability of developed method for monitoring of selected compounds in real wine fermentation experiments. The
developed HPLC-TLS method showed higher sensitivity compared to HPLC coupled to diode array detection (DAD) technique for particular wine colour compounds. Obtained limits of detection (LODs), were 6- and 22-times lower in comparison to HPLC–DAD in gradient and isocratic elution mode, respectively, whereas limits of quantification (LOQs)
5 and 18-times lower. Lower LODs enabled earlier observation of vinylphenolic pyranoanthocyanins formation during fermentation (already at day 7) in the case of HPLC-TLS method in gradient mode, while by using HPLC–DAD in gradient elution mode the formation of vinylphenolic pyranoanthocyanins was noticed only after 12 days of fermentation.
Ključne besede: Thermal lens spectrometry (TLS), High performance liquid chromatography (HPLC), Pyranoanthocyanins, Wine, Yeasts
Objavljeno v RUNG: 18.06.2020; Ogledov: 3327; Prenosov: 0
Gradivo ima več datotek! Več... |
2702. Chemical Instability of an Interface between Silver and Bi2Se3 Topological Insulator at Room TemperatureKatja Ferfolja, Matjaž Valant, Iuliia Mikulska, Sandra Gardonio, Mattia Fanetti, 2018, izvirni znanstveni članek Opis: Understanding an interaction at an interface between a topological insulator and a metal is of critical importance when designing electronic and spintronic devices or when such systems are used in catalysis. In this paper, we report on a chemical instability of the interface between Bi2Se3 and Ag studied by X-ray powder diffraction and electron microscopy. We present strong experimental evidence of a redox solid-state reaction occurring at the interface with kinetics that is significant already at room temperature. The reaction yields Ag2Se, AgBiSe2, and Bi. The unexpected room-temperature chemical instability of the interface should be considered for all future theoretical and applicative studies involving the interface between Bi2Se3 and Ag.
Ključne besede: topological insulators, Ag, thin metal films, interfaces, redox reaction
Objavljeno v RUNG: 17.06.2020; Ogledov: 2926; Prenosov: 0
Gradivo ima več datotek! Več... |
2703. |
2704. Javna luč skozi arhive Občine TržičDrago Papler, 2016, strokovni članek Ključne besede: javna razsvetljava, elektrifikacija, hidroelektrarne, elektroenergetika, električna energija, omrežja, arhivi, Tržič, zgodovina
Objavljeno v RUNG: 16.06.2020; Ogledov: 2664; Prenosov: 0 |
2705. Stoletnica Kranjske deželne elektrarne Završnica zaznamovana s knjigoDrago Papler, 2015, strokovni članek Ključne besede: elektrifikacija, proizvodnja, tehniška dediščina, Kranjska, zgodovina, hidroelektrarne, elektroenergetika, električna energija, omrežja, tehnologija, ekonomika, konkurenčnost, razvoj
Objavljeno v RUNG: 16.06.2020; Ogledov: 2846; Prenosov: 0 |
2706. Razvojno-investicijski projekti odvisni od razpoložljivih kadrovskih virovDrago Papler, 2015, strokovni članek Ključne besede: elektroenergetika, razvoj, investicije, projekti, omrežja, strategija, organizacija, naravne ujme, kadri
Objavljeno v RUNG: 16.06.2020; Ogledov: 2585; Prenosov: 0 |
2707. Measurements of Inclined Air Showers with the Auger Engineering Radio Array at the Pierre Auger ObservatoryMarvin Gottowik, Andrej Filipčič, Gašper Kukec Mezek, Samo Stanič, Marta Trini, Serguei Vorobiov, Lili Yang, Danilo Zavrtanik, Marko Zavrtanik, Lukas Zehrer, 2019, objavljeni znanstveni prispevek na konferenci Ključne besede: Pierre Auger Observatory, Auger Engineering Radio Array, inclined air showers
Objavljeno v RUNG: 16.06.2020; Ogledov: 2415; Prenosov: 75
 Celotno besedilo (1000,76 KB) |
2708. Air-Shower Reconstruction at the Pierre Auger Observatory based on Deep LearningJonas Glombitza, Andrej Filipčič, Gašper Kukec Mezek, Samo Stanič, Marta Trini, Serguei Vorobiov, Lili Yang, Danilo Zavrtanik, Marko Zavrtanik, Lukas Zehrer, 2019, objavljeni znanstveni prispevek na konferenci Ključne besede: Pierre Auger Observatory, extensive air showers, event reconstruction, deep learning
Objavljeno v RUNG: 16.06.2020; Ogledov: 2644; Prenosov: 80
Celotno besedilo (1,16 MB) |
2709. Social Impact of Outreach at the Pierre Auger ObservatoryBeatriz García, Andrej Filipčič, Gašper Kukec Mezek, Samo Stanič, Marta Trini, Serguei Vorobiov, Lili Yang, Danilo Zavrtanik, Marko Zavrtanik, Lukas Zehrer, 2019, objavljeni znanstveni prispevek na konferenci Ključne besede: ultra-high energy cosmic rays, Pierre Auger Observatory, outreach, social impact
Objavljeno v RUNG: 16.06.2020; Ogledov: 2467; Prenosov: 77
Celotno besedilo (5,83 MB) |
2710. The Energy Scale of the Pierre Auger ObservatoryBruce R. Dawson, Andrej Filipčič, Gašper Kukec Mezek, Samo Stanič, Marta Trini, Serguei Vorobiov, Lili Yang, Danilo Zavrtanik, Marko Zavrtanik, Lukas Zehrer, 2019, objavljeni znanstveni prispevek na konferenci Ključne besede: ultra-high energy cosmic rays, Pierre Auger Observatory, energy scale
Objavljeno v RUNG: 16.06.2020; Ogledov: 2440; Prenosov: 73
Celotno besedilo (277,08 KB) |
