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

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 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

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 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

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 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

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

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 Conference proceedings at Scopus Article at Scopus

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

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

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

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 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

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

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

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

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

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 http://dx.doi.org/10.1016/j.fuel.2014.12.031

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

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 Journal metrics at Scopus Article at Scopus Jornal metrics at WOS Article at WOS

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