Controlled nanocrystalline precipitation of hydroxyapatite on the surface of microfibrillated cellulose fibersKärner, Kärt; Elomaa, Matti Antero; Kallavus, Urve; Tõnsuaadu, KaiaInternational journal of recent scientific research2017 / p. 20803-20809 : ill http://recentscientific.com/sites/default/files/8807-A-2017.pdf Development of aspen bleached chemithermomechanical pulp towards nanostructure = Haava pleegitatud keemilis-termilise puitmassi töötlemine nanostruktuuride saamiseksKärner, Kärt2018 https://digi.lib.ttu.ee/i/?9947 https://www.ester.ee/record=b5054961*est Enhancing the surface charge of BCTMP of aspen with supercritical CO2 treatmentKärner, Kärt; Talviste, Rasmus; Viipsi, Karin; Kallavus, UrveBaltic Polymer Symposium 2013 : Trakai, Lithuania, September 18-21, 2013 : programme [and abstracts]2013 / p. 87 : ill Enhancing the surface charge of BCTMP of aspen with supercritical CO2 treatmentKärner, Kärt; Talviste, Rasmus; Viipsi, Karin; Kallavus, UrveTÜ ja TTÜ doktorikool “Funktsionaalsed materjalid ja tehnoloogiad”2013 / [1] p. : ill Fibrillation of aspen by alkaline cold pre-treatment and vibration millingKärner, Kärt; Elomaa, Matti Antero; Kallavus, UrveMaterials science = Medžiagotyra2016 / p. 358-363 : ill http://dx.doi.org/10.5755/j01.ms.22.3.7412 Lignin and outer cell wall removal from aspen pulp fibres by using supercritical CO2 extractionKärner, Kärt; Elomaa, Matti Antero; Kallavus, UrveProceedings of the 9th International Conference of DAAAM Baltic Industrial Engineering, 24-26th April 2014, Tallinn, Estonia2014 / p. 372-377 : ill Rapid quantitative determination of lignin in lignocellulosic productsKärner, Kärt; Kärner, Kristi; Kallavus, Urve; Elomaa, Matti AnteroBaltic Polymer Symposium 2014 : programme and abstracts : Laulasmaa, Estonia, September 24-26, 20142014 / p. 56 Rapid semi-quantitative determination of aspen lignin in lignocellulosic productsKallavus, Urve; Kärner, Kristi; Kärner, Kärt; Elomaa, Matti AnteroProceedings of the Estonian Academy of Sciences2015 / p. 105-112 : ill http://dx.doi.org/10.3176/proc.2015.1S.06 https://artiklid.elnet.ee/record=b2716368*est Study of the effect of mechanical treatment and supercritical CO2 extraction on aspen BCTMP by surface charge measurements and SEMKärner, Kärt; Talviste, Rasmus; Viipsi, Karin; Elomaa, Matti Antero; Kallavus, UrveCellulose chemistry and technology2014 / p. 535-544 : ill