• Applicability of static supercritical carbon dioxide extraction in biogeochemical characterization of oil shalesLuik, Hans; Luik, Lea; Palu, Vilja; Šarajeva, Galina; Gregor, AndreAmerican journal of analytical chemistry2014 / p. 173-180 : ill
• Application of the indentation method for cracking resistance evaluation of hard coatings on tool steelsSivitski, Alina; Gregor, Andre; Saarna, Mart; Kulu, Priit; Sergejev, FjodorEstonian journal of engineering2009 / 4, p. 309-317 : ill
• Assessment of gradient and nanogradient PVD coatings behaviour under erosive, abrasive and impact wear conditionsAntonov, Maksim; Hussainova, Irina; Sergejev, Fjodor; Kulu, Priit; Gregor, AndreWear2009 / p. 898-906 : ill
• Carbonation and leaching behaviors of cement-free monoliths based on high-sulfur fly ashes with the incorporation of amorphous calcium aluminateUsta, Mustafa Cem; Yörük, Can Rüstü; Uibu, Mai; Traksmaa, Rainer; Hain, Tiina; Gregor, Andre; Trikkel, AndresACS omega2023 / p. 29543–29557 : ill https://doi.org/10.1021/acsomega.3c03286 https://www.scopus.com/sourceid/21100828963 https://www.scopus.com/record/display.uri?eid=2-s2.0-85167920744&origin=inward&txGid=7dc812bfd82972912e05e62c5d6a6f9d https://jcr.clarivate.com/jcr-jp/journal-profile?journal=ACS%20OMEGA&year=2023 https://www.webofscience.com/wos/woscc/full-record/WOS:001040508500001
• Catalytic hydrogenation of thermobitumenKrasulina, Julia; Bitjukov, Mihhail; Vink, Natalia; Gregor, Andre; Luik, Lea; Luik, HansInternational oil shale symposium : Tallinn, Estonia, June 10-13, 20132013 / p. 56-57
• Characterization of coating systems by indentation methodKulu, Priit; Gregor, Andre; Saarna, Mart; Sivitski, Alina; Sergejev, Fjodor; Surženkov, AndreiActa metallurgica Slovaca conference2010 / 1, p. 616-624 : ill
• CO2 curing of Ca-rich fly ashes to produce cement-free building materialsUsta, Mustafa Cem; Yörük, Can Rüstü; Uibu, Mai; Hain, Tiina; Gregor, Andre; Trikkel, AndresMinerals2022 / art. 513, 24 p. : ill https://doi.org/10.3390/min12050513 https://www.scopus.com/sourceid/21100399705 https://www.scopus.com/record/display.uri?eid=2-s2.0-85128715958&origin=resultslist&sort=plf-f&src=s&sid=3b42bc15325c13282d3a40f32ea9fcd1&sot=b&sdt=b&s=TITLE-ABS-KEY%28%22co2+curing+of+ca-rich+fly%22%29&sl=34&sessionSearchId=3b42bc15325c13282d3a40f32ea9fcd1 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=MINERALS-BASEL&year=2022 https://www.webofscience.com/wos/woscc/full-record/WOS:000801519700001
• Common rail diesel feed system diagnosing technologyIlves, R.; Mikita, V.; Traat, Ü.; Gregor, AndreAgronomy research2010 / S1, p. 74-78 : ill
• Comparison of curvature and X-Ray methods for measuring of residual stresses in hard PVD coatingsLille, Harri; Kõo, Jakub; Gregor, Andre; Ryabchikov, Alexander; Sergejev, Fjodor; Traksmaa, Rainer; Kulu, PriitMaterials science forum2011 / p. 455-460
• Design and testing of new composite from recycled GFRPKers, Jaan; Majak, Jüri; Goljandin, Dmitri; Saarna, Mart; Gregor, Andre; Siinmaa, A.; Tall, Kaspar14th European Conference on Composite Materials : 7-10 June 2010, Budapest, Hungary2010 / [10] p
• Determination of mechanical properties of thin hard coatings using nanoindentationYaldiz, Can Emrah; Veinthal, Renno; Gregor, Andre; Georgiadis, Kyriakos18th International Baltic Conference : Engineering Materials & Tribology : BALTMATTRIB-2009 : October 22-23, 2009, Tallinn, Estonia : abstracts2009 / p. 48
• Effect of laser heat treatment on AlxTi1-xN-based PVD coatings, deposited on carbon and tool steel substratesSurženkov, Andrei; Viljus, Mart; Antonov, Maksim; Kübarsepp, Jakob; Juhani, Kristjan; Kulu, Priit; Vagiström, Heinar; Jankauskas, Vytenis; Leišys, Rimtautas; Bendikiene, Regita; Adoberg, Eron; Peetsalu, Priidu; Mere, Arvo; Gregor, AndreSurface and coatings technology2022 / art. 128771 https://doi.org/10.1016/j.surfcoat.2022.128771 https://www.scopus.com/sourceid/24537 https://www.scopus.com/record/display.uri?eid=2-s2.0-85135782322&origin=inward&txGid=6e51d759d5acd8cc6c222bea9bda86ab https://jcr.clarivate.com/jcr-jp/journal-profile?journal=SURF%20COAT%20TECH&year=2022 https://www.webofscience.com/wos/woscc/full-record/WOS:000848086400002
• Effect of process parameters on strength and carbonation of engineered building materials by calcium rich alkali wastesUsta, Mustafa Cem; Yörük, Can Rüstü; Gregor, Andre; Hain, Tiina; Uibu, Mai; Trikkel, AndresGSFMT Scientific Conference 2021 : Tartu, June 14-15, 2021 : abstracts2021 / P 40 https://fmtdk.ut.ee/wp-content/uploads/2021/06/GSFMT_abstractbook_2021.pdf
• Evaluation of mechanical properties and residual stresses of hard PVD coatingsGregor, Andre; Lille, Harri; Kõo, Jakub; Sergejev, Fjodor; Traksmaa, Rainer; Sivitski, Alina; Kulu, Priit18th International Baltic Conference : Engineering Materials & Tribology : BALTMATTRIB-2009 : October 22-23, 2009, Tallinn, Estonia : abstracts2009 / p. 34
• Evaluation of new applications of oil shale ashes in building materialsUsta, Mustafa Cem; Yörük, Can Rüstü; Hain, Tiina; Paaver, Peeter; Snellings, Ruben; Rozov, Eduard; Gregor, Andre; Kuusik, Rein, keemik; Trikkel, Andres; Uibu, MaiMinerals2020 / art. 765, 19 p. : ill https://doi.org/10.3390/min10090765 https://www.scopus.com/sourceid/21100399705 https://www.scopus.com/record/display.uri?eid=2-s2.0-85093893450&origin=inward&txGid=2892f5334fcd300d062cb420c2cd549f https://jcr.clarivate.com/jcr-jp/journal-profile?journal=MINERALS-BASEL&year=2022 https://www.webofscience.com/wos/woscc/full-record/WOS:000581366100001
• Extremes of apparent and tap densities of recovered GFRP filler materialsKers, Jaan; Majak, Jüri; Gregor, Andre; Malmstein, M.; Vilsaar, Kristiina15th International Conference on Composite Structures : Portugal, Porto2009 / ? p https://www.sciencedirect.com/science/article/pii/S0263822309004085
• Extremes of apparent and tap densities of recovered GFRP filler materialsKers, Jaan; Majak, Jüri; Goljandin, Dmitri; Gregor, Andre; Malmstein, M.; Vilsaar, KristiinaComposite structures2010 / 9, p. 2097-2101 : ill https://www.sciencedirect.com/science/article/pii/S0263822309004085
• Hard coatings manufacturing technology used in toolingGregor, Andre; Podgurski, Vitali; Adoberg, Eron; Kulu, PriitProceedings of the 5th International Conference of DAAAM Baltic : Industrial Engineering - Adding Innovation Capacity of Labour Force and Entrepreneur : 20-22 April 2006, Tallinn, Estonia2006 / p. 255-260 : ill
• Hard PVD coatings for tooling = PVD kõvapinded tööriistamajandusesGregor, Andre2010 https://digi.lib.ttu.ee/i/?495 https://www.ester.ee/record=b2607112*est
• Heat conductive plates from recycled niobium slagKulu, Priit; Goljandin, Dmitri; Viljus, Mart; Traksmaa, Rainer; Gregor, AndreSolid State Phenomena ; 3202021 / p. 169-175 https://doi.org/10.4028/www.scientific.net/SSP.320.169 https://www.scopus.com/sourceid/21100305259 https://www.scopus.com/record/display.uri?eid=2-s2.0-85116902585&origin=inward&txGid=a6e973bc9128d295157112bf70307c60
• Identation method application for cracking resistance evaluation of hard coatings on tool steelsSivitski, Alina; Gregor, Andre; Saarna, Mart; Kulu, Priit; Sergejev, Fjodor18th International Baltic Conference : Engineering Materials & Tribology : BALTMATTRIB-2009 : October 22-23, 2009, Tallinn, Estonia : abstracts2009 / p. 51
• Influence of surface roughness on the tribological behaviour of the PVD coatingsSurženkov, Andrei; Adoberg, Eron; Viljus, Mart; Podgurski, Vitali; Veinthal, Renno; Kulu, Priit; Gregor, Andre18th International Baltic Conference : Engineering Materials & Tribology : BALTMATTRIB-2009 : October 22-23, 2009, Tallinn, Estonia : abstracts2009 / p. 38
• Investigation of the surface fatigue of carbide composites and PVD hard coatingsSergejev, Fjodor; Antonov, Maksim; Gregor, Andre; Hussainova, Irina; Kulu, Priit; Kübarsepp, JakobProceedings of the 6th International Conference of DAAAM Baltic "Industrial Engineering" : 24-26th April 2008, Tallinn, Estonia. [2]2008 / p. 543-548 : ill http://innomet.ttu.ee/daaam08/online/Materials%20Engineering/Sergejev.pdf
• Investigation of (Ti, Al)N based coatings grown by physical vapor depositionPodgurski, Vitali; Torp, Bo; Traksmaa, Rainer; Veinthal, Renno; Viljus, Mart; Coddet, Olivier; Morstein, Marcus; Gregor, Andre; Kulu, PriitMaterials science = Medžiagotyra2005 / 4, p. 352-355 : ill https://www.researchgate.net/publication/237812860_Investigation_of_Ti_AlN_Based_Coatings_Grown_by_Physical_Vapor_Deposition
• Kõrgtasemel kõvapindamisseade tõstab TTÜ konkurentsivõimetGregor, AndreInseneeria2008 / 1, lk. 42
• Laser treatment of PVD coated carbon steels and powder steelsSurženkov, Andrei; Kulu, Priit; Gregor, Andre; Vuoristo, Petri; Latokartano, Jyrki; Rupponen, MikkoMaterials science2008 / p. 301-305 : ill
• Laser treatment of PVD coated carbon steels and powder steelsSurženkov, Andrei; Kulu, Priit; Gregor, Andre; Vuoristo, Petri; Latokartano, Jyrki; Rupponen, Mikko17th International Baltic Conference : Materials Engineering 2008 : November 6-7, Kaunas, Lithuania : abstracts of papers2008 / p. 58
• Mechanical properties of thin hard coatings on TiC-NiMo substratesYaldiz, Can Emrah; Veinthal, Renno; Gregor, Andre; Georgiadis, KyriakosEstonian journal of engineering2009 / 4, p. 329-339 : ill
• Mechanical recycling of compounded polymeric waste and evaluation of briquetting parametersKers, Jaan; Križan, P.; Letko, M.; Šooš, Lubomir; Kask, Ülo; Gregor, AndreProceedings of the 7th International Conference of DAAAM Baltic Industrial Engineering : 22-24th April 2010, Tallinn, Estonia. [II]2010 / p. 468-473 : ill
• Mehanical properties of PVD coatings on TiC-based cermetsVeinthal, Renno; Yaldiz, Can Emrah; Gregor, Andre1st Mediterranean Conference on Heat Treatment and Surface Engineering : Heat Treatment and Surface Engineering in the Manufacturing of Metallic Engineering Components : December 1-3, 2009, Sharm El-Skeikh, Egypt2009 / p. 54
• Mitmekütuseline Wankelmootor ehk Wankelmootor vol 2Gregor, AndreDirector. Inseneeria2018 / lk. 100-104 : fot http://www.ester.ee/record=b2336521*est https://artiklid.elnet.ee/record=b2862642*est
• Performance evaluation of flue gas cured calcium rich fly ash-based building blocks : [flash paper presentation]Usta, Mustafa Cem; Adegbile, A. M.; Gregor, Andre; Paaver, Peeter; Hain, Tiina; Yörük, Can Rüstü; Uibu, Mai; Trikkel, Andres17th International Conference on Environmental Science and Technology CEST2021, 1-4 September 2021, Athens, Greece2021 / [flash paper presentation]
• Physical–mechanical properties and morphology of filled low-density polypropylene: comparative study on calcium carbonate with oil shale and coal ashesKrasnou, Illia; Nadeem, Faisal; Gregor, Andre; Yörük, Can Rüstü; Krumme, AndresJournal of Vinyl and Additive Technology2022 / p. 94-103 : ill https://doi.org/10.1002/vnl.21869 https://www.scopus.com/sourceid/13691 https://www.scopus.com/record/display.uri?eid=2-s2.0-85115837885&origin=inward&txGid=51980ab1119b1d6e355ec8330abd8be2 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=J%20VINYL%20ADDIT%20TECHN&year=2022 https://www.webofscience.com/wos/woscc/full-record/WOS:000700962000001
• Potential of electric discharge plasma methods in abatement of volatile organic compounds originating from food industryPreis, Sergei; Klauson, Deniss; Gregor, AndreJournal of environmental management2013 / p. 125-138 https://doi.org/10.1016/j.jenvman.2012.10.042 https://www.scopus.com/sourceid/23371 https://www.scopus.com/record/display.uri?eid=2-s2.0-84870719514&origin=resultslist&sort=plf-f&src=s&sot=b&sdt=b&s=DOI%2810.1016%2Fj.jenvman.2012.10.042%29&sessionSearchId=c42962733a94ae09ac921c72c691ac9c&relpos=0 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=J%20ENVIRON%20MANAGE&year=2013 https://www.webofscience.com/wos/woscc/full-record/WOS:000314371700013
• Properties and performance of hard coatings on tool steels under cyclic indentationSivitski, Alina; Gregor, Andre; Saarna, Mart; Kulu, Priit; Sergejev, FjodorActa mechanica Slovaca2009 / p. 84-94 : ill
• REE + Y distribution in Tremadocian shelly phosphorites (Toolse, Estonia) : multi-stages enrichment in shallow marine sediments during early diagenesisGraul, Sophie; Kallaste, Toivo; Pajusaar, Siim; Urston, Kritsjan; Gregor, Andre; Moilanen, Marko; Ndiaye, Mawo; Hints, RuttJournal of Geochemical Exploration2023 / art. 107311 https://doi.org/10.1016/j.gexplo.2023.107311 https://www.scopus.com/sourceid/23222 https://www.scopus.com/record/display.uri?eid=2-s2.0-85171628700&origin=inward&txGid=dc9ea9c2ae28d49f2209818a2b0c7070 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=J%20GEOCHEM%20EXPLOR&year=2023 https://www.webofscience.com/wos/woscc/full-record/WOS:001089168900001
• Roughness of TiN and nanocomposite nc-Ti1-xAlxN/[alpha]-Si3N4 surface evaluated by means of AFMPodgurski, Vitali; Nisumaa, Reet; Gregor, Andre; Adoberg, Eron; Kulu, PriitLatvijas kimijas žurnals = Latvian journal of chemistry2008 / 1, p. 62-66 : ill
• Selection of coating systems and processes for different wear conditionsKulu, Priit; Saarna, Mart; Sergejev, Fjodor; Gregor, Andre; Surženkov, AndreiProceedings of 14th Nordic Symposium on Tribology : NORDTRIB 2010 : 08.06-11.06.2010, Storforsen, Sweden2010 / [8] p. [CD-ROM]
• Soliidses eas Wankelmootor - atraktiivne ka tänapäevalGregor, AndreDirector. Inseneeria2018 / lk. 111-113 : fot http://www.ester.ee/record=b2336521*est https://artiklid.elnet.ee/record=b2861400*est
• Surface fatigue and wear resistance of thin and thick hard coatingsKulu, Priit; Saarna, Mart; Sergejev, Fjodor; Gregor, Andre; Sivitski, Alina; Müller, H.IFHTSE International Federation for Heat Treatment and Surface Engineering 18th Congress : July 26-30, 2010, Rio de Janeiro, Brazil : [CD-ROM]2010 https://www.researchgate.net/publication/289598093_Surface_fatigue_and_wear_resistance_of_thin_and_thick_hard_coatings
• Synergy in co-liquefaction of oil shale and willow in supercritical waterJohannes, Ille; Luik, Hans; Palu, Vilja; Kruusement, Kristjan; Gregor, AndreFuel2015 / p. 180-187 : ill https://doi.org/10.1016/j.fuel.2014.12.031 https://www.scopus.com/sourceid/16313 https://www.scopus.com/record/display.uri?eid=2-s2.0-84920275463&origin=resultslist&sort=plf-f&src=s&sot=b&sdt=b&s=DOI%2810.1016%2Fj.fuel.2014.12.031%29&sessionSearchId=7f772bd62cd83bd69cbd65e5fe1dc720 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=FUEL&year=2015 https://www.webofscience.com/wos/woscc/full-record/WOS:000348037800022
• Synergy in hydrous pyrolysis of oil shale and sawdust blendsJohannes, Ille; Tiikma, Laine; Luik, Hans; Gregor, Andre20th International Symposium on Analytical and Applied Pyrolysis : PYRO 2014 : 19-23 May 2014, Birmingham, UK : conference guide and abstracts2014 / p. 70
• Synergy in the hydrothermal pyrolysis of oil shale/sawdust blendsTiikma, Laine; Johannes, Ille; Luik, Hans; Gregor, AndreJournal of Analytical and Applied Pyrolysis2016 / p. 247 - 256 https://doi.org/10.1016/j.jaap.2015.11.008 https://www.scopus.com/sourceid/24154 https://www.scopus.com/record/display.uri?eid=2-s2.0-84959083728&origin=resultslist&sort=plf-f&src=s&sid=51e607e4a2be7bc0973e294672e300ac&sot=b&sdt=b&s=DOI%2810.1016%2Fj.jaap.2015.11.008%29&sl=31&sessionSearchId=51e607e4a2be7bc0973e294672e300ac&relpos=0 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=J%20ANAL%20APPL%20PYROL&year=2016 https://www.webofscience.com/wos/woscc/full-record/WOS:000370105000028
• Termobituumeni katalüütiline hüdrogeenimineKrasulina, Julia; Bitjukov, Mihhail; Vink, Natalia; Gregor, Andre; Luik, Lea; Luik, HansXXXIII Eesti Keemiapäevad : teaduskonverentsi teesid2013 / lk. 35
• Thermal properties of calcium-aluminate based materialsKulu, Priit; Goljandin, Dmitri; Traksmaa, Rainer; Kaljuvee, Tiit; Gregor, AndreProceedings of the Estonian Academy of Sciences2021 / p. 508-515 : ill https://doi.org/10.3176/proc.2021.4.19 https://www.scopus.com/sourceid/11500153303 https://www.scopus.com/record/display.uri?eid=2-s2.0-85122068924&origin=inward&txGid=bf0b57f53c094f7624721c316ad67b7a https://jcr.clarivate.com/jcr-jp/journal-profile?journal=P%20EST%20ACAD%20SCI&year=2022 https://www.webofscience.com/wos/woscc/full-record/WOS:000750587400006
• Thermal properties of calcium-aluminate based materialsKulu, Priit; Goljandin, Dmitri; Traksmaa, Rainer; Kaljuvee, Tiit; Gregor, AndreIOP conference series : materials science and engineering2021 / art. 012028, 7 p. : ill https://doi.org/10.1088/1757-899X/1140/1/012028
• Thermochemical conversion of woody biomass by using slow pyrolysis and direct hydrogenation methodsLuik, Hans; Luik, Lea; Gregor, AndreWasteEng 2014 : 5th International Conference on Engineering for Waste and Biomass Valorisation, Rio de Janeiro, Brazil, August 25-28, 2014 : proceedings2014 / p. 1532-1541
• Thermochemical conversion of woody biomass by using slow pyrolysis and direct hydrogenation methodsLuik, Hans; Luik, Lea; Gregor, AndreWasteEng 2014 : 5th International Conference on Engineering for Waste and Biomass Valorisation, Rio de Janeiro, Brazil, August 25-28, 2014 : abstracts2014 / p. 217
• Wear of hard coatings evaluated by means of kaloMaxPodgurski, Vitali; Gregor, Andre; Adoberg, Eron; Kulu, Priit15th International Baltic Conference "Engineering Materials & Tribology. Baltmattrib - 2006" : October 5-6, 2006, Tallinn, Estonia : abstracts2006 / p. 64-65
• Wear of hard coatings, evaluated by means of kaloMaxPodgurski, Vitali; Gregor, Andre; Adoberg, Eron; Kulu, PriitProceedings of the Estonian Academy of Sciences. Engineering2006 / 4, p. 419-426 : ill
• Visualization of strain distribution around the edges of a rectangular foreign object inside the woven carbon fibre specimenHerranen, Henrik; Allikas, Georg; Eerme, Martin; Vene, Karl-Kristo; Otto, Tauno; Gregor, Andre; Kirs, Maarjus; Mädamürk, KarlEstonian journal of engineering2012 / p. 279-287 : ill https://artiklid.elnet.ee/record=b2527774*est