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Št. zadetkov: 8
Cationic silicone based paper impregnation agent for the protection of historical paper against fungal growth. Detection and quantification of fungi using micro-invasive fluorescence microspopy and non-invasive FTIR spectroscopy
Janez Kosel, Lea Legan, Matej Bračič, Polonca Ropret
Izvirni znanstveni članek
Oznake: dediščinska znanost;mikroskopija;naravoslovne preiskave;historični papir;cultural heritage;aminopropyl-terminated;polydimethylsiloxane;fungal overgrowth;fluorescent microscopy;3D surface topography;historical paper;reflection FTIR spectroscopy;
Even though contamination of historical paper by moulds causes aesthetic, physical, and biochemical biodeterioration, dissolving cellulose fibers and inks, the currently applied physical and chemical disinfection methods are either extremely dangerous to human health (ethylene oxide), may harm the u ...
Leto: 2024 Vir: Fakulteta za kemijo in kemijsko tehnologijo (UL FKKT)
Characteristic burn temperature markers of bones as revealed by electron paramagnetic resonance
Tilen Knaflič, Lea Legan, Fabio Cavalli, Polonca Ropret
Izvirni znanstveni članek
Oznake: burnt bones;EPR spectroscopy;burn temperature;reflection FTIR spectroscopy;archaelogical bones;thermal degradation;
This research paper presents a novel methodology for determining the burn temperature of archaeological bones using electron paramagnetic resonance (EPR) supported by Fourier Transform Infrared (FTIR) spectroscopy. A selection of bone samples, burned at different temperatures, were examined with EPR ...
Leto: 2024 Vir: Fakulteta za kemijo in kemijsko tehnologijo (UL FKKT)
Identification of iron gall inks, logwood inks, and their mixtures using Raman spectroscopy, supplemented by reflection and transmission infrared spectroscopy
Klara Retko, Lea Legan, Janez Kosel, Polonca Ropret
Izvirni znanstveni članek
Oznake: črnilo;železna žolča;les;hlodovina;spektroskopija;naravoslovne preiskave;ink;iron gall;logwood;mixtures;raman spectroscopy;infrared spectroscopy;
Raman spectral references for various formulations of iron gall inks, logwood inks and mixtures of both types were acquired during this study. The samples, either liquid or dry inks and applied on paper, were analysed using a portable Raman spectrometer, both with 852 and 785 nm excitation lines, an ...
Leto: 2024 Vir: Fakulteta za kemijo in kemijsko tehnologijo (UL FKKT)
Developing electrically conductive materials through thermal conversions of hemp stalk wastes
Laetitia Sarah Jennifer Marrot, Kevin Candelier, Jérémy Valette, Charline Lanvin, Barbara Horvat, Lea Legan, David Brian DeVallance
Objavljeni povzetek znanstvenega prispevka na konferenci
Oznake: hemp;pyrolysis;carbonization;thermal conversion;biochar;electrical conductivity;
Leto: 2021 Vir: Univerza na Primorskem (UP)
Growth of xerophilic fungi on model paint samples on glass and wooden supports under low humidity conditions
Janez Kosel, Jakub Michal Sandak, Anna Malgorzata Sandak, Lea Legan, Klara Retko, Maša Kavčič, Črtomir Tavzes, Miklós Krész, Polonca Ropret
Objavljeni povzetek znanstvenega prispevka na konferenci
Oznake: Aspergillus;Penicillium;xerophilic fungi;pigments;
Leto: 2021 Vir: Univerza na Primorskem (UP)
Material characterisation of a painted beehive panel by advanced spectroscopic and chromatographic techniques in combination with hyperspectral imaging
Klara Retko, Maša Kavčič, Lea Legan, Polonca Ropret, Bojana Rogelj Škafar, Yingwang Gao, John R. Gilchrist, Matija Strlič, Irena Kralj Cigić
Izvirni znanstveni članek
Oznake: poslikane panjske končnice;kulturna dediščina;refleksijska FTIR spektroskopija;transmisijska FTIR spektroskopija;neinvazivna Ramanska spektroskopija;GC-MS analiza;hiperspektralno oslikovanje;painted beehive panels;cultural heritage;reflection FTIR spectroscopy;transmission FTIR spectroscopy;non-invasive Raman spectroscopy;GC-MS analysis;hyperspectral imaging;
In this study, a painted beehive panel from the collection of the Slovene Ethnographic Museum was examined with respect to its material composition with the aim to reveal the painting technique. Due to the state of degradation due to outdoor weathering (UV irradiation, rainfall, extreme temperature ...
Leto: 2020 Vir: Fakulteta za kemijo in kemijsko tehnologijo (UL FKKT)
Characterization of heritage objects with NIR hyperspectral imaging
Polonca Ropret, Janez Kosel, Faksawat Poohphajai, Rene Herrera Diaz, Veerapandian Ponnuchamy, Nežka Sajinčič, Črtomir Tavzes, Jakub Michal Sandak, Anna Malgorzata Sandak, Lea Legan, Klara Retko, Maša Kavčič
Objavljeni povzetek znanstvenega prispevka na konferenci
Oznake: hyperspectral imaging;cultural heritage;painted beehive panels;
Leto: 2021 Vir: Repozitorij Univerze na Primorskem (RUP)
Nondestructive evaluation of heritage object coatings with four hyperspectral imaging systems
Jakub Michal Sandak, Rene Herrera Diaz, Veerapandian Ponnuchamy, Nežka Sajinčič, Oihana Gordobil, Črtomir Tavzes, Polonca Ropret, Anna Malgorzata Sandak, Lea Legan, Klara Retko, Maša Kavčič, Janez Kosel, Faksawat Poohphajai
Izvirni znanstveni članek
Oznake: hyperspectral imaging;cultural heritage;nondestructive testing;surface characterisation;painted beehive panels;
Leto: 2021 Vir: Repozitorij Univerze na Primorskem (RUP)
Št. zadetkov: 8
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