• Acoustic analysis of compact silencer solution based on microperforated panelVillau, Margus; Rämmal, Hans; Lavrentjev, JüriModern Materials and Manufacturing 2023 : Tallinn, Estonia, 2–4 May 20232024 / art. 030014 https://doi.org/10.1063/5.0189854 https://www.scopus.com/pages/publications/85184320608?inward https://www.scopus.com/sourceid/26916
• Acoustic studies of micro-perforates for small engine silencersKabral, Raimo; Rämmal, Hans; Lavrentjev, JüriSAE technical papers2012 https://www.sae.org/publications/technical-papers/content/2012-32-0107/
• Acoustic studies on small engine silencer elementsKabral, Raimo; Rämmal, Hans; Lavrentjev, Jüri; Auriemma, FabioSAE technical papers2011 / [8] p. : ill
• Acoustic study of multi-layered microperforated elements for fibreless noise control applicationsVillau, Margus; Rämmal, Hans; Lavrentjev, JüriIOP conference series : materials science and engineering2021 / art. 012015, 7 p. : ill https://doi.org/10.1088/1757-899X/1140/1/012015
• Aero-acoustic studies and innovative noise control with application to modern automotive gas exchange system = Kaasaegse automootori gaasivahetussüsteemide aeroakustilised uuringud ja müra vähendamise innovaatilised meetodidKabral, Raimo2015 https://digi.lib.ttu.ee/i/?2502 https://www.ester.ee/record=b4481436*est
• Application of novel micro-grooved elements to small engine silencerAuriemma, Fabio; Rämmal, Hans; Lavrentjev, JüriSAE Technical Papers2013 / [10] p.: ill https://www.sae.org/publications/technical-papers/content/2013-32-9001/ https://doi.org/10.4271/2013-32-9001 https://www.scopus.com/sourceid/21100239259 https://www.scopus.com/record/display.uri?eid=2-s2.0-84887986231&origin=resultslist&sort=plf-f&src=s&sot=b&sdt=b&s=DOI%2810.4271%2F2013-32-9001%29&sessionSearchId=842eff8fafa5da0f4673a77a0030efbc
• Autode väljalaskesummutidLavrentjev, JüriTehnika ja Tootmine1991 / 9/10, lk. 55-57: ill
• A complete acoustic analysis on the passive effect of small engine silencer elementsKabral, Raimo; Rämmal, Hans; Lavrentjev, Jüri; Auriemma, FabioProceedings of International Congress on Sound and Vibration (ICSV18) : Rio de Janeiro, Brazil, 10 to 14 July 20112011
• Concept study of sustainable noise control solution for HVAC systems based on microperforated elementsVillau, Margus; Rämmal, Hans; Lavrentjev, JüriProceedings of the Estonian Academy of Sciences2021 / p. 461-469 : ill https://doi.org/10.3176/proc.2021.4.13 https://www.scopus.com/sourceid/11500153303 https://www.scopus.com/record/display.uri?eid=2-s2.0-85122103261&origin=inward&txGid=ed6903f51728f56e6f2e6ce381a5ef57 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=P%20EST%20ACAD%20SCI&year=2022 https://www.webofscience.com/wos/woscc/full-record/WOS:000750607700013
• Dedicated testrig for acoustic characterization of automotive silencersLavrentjev, Jüri; Rämmal, HansProceedings of the ICSV 16 : The 16th International Congress on Sound and Vibration : Krakow, Poland, 5-9 July, 20092009 / [6] p https://www.researchgate.net/publication/287088587_Dedicated_testrig_for_acoustic_characterization_of_automotive_silencers
• Endurance of micro-perforated elements in unmanned ground vechicle’s small diesel engine silencer applicationRämmal, Hans; Lavrentjev, JüriSAE Technical Paper Series : The 25th Small Engine Technology Conference (SETC2019) : Small Powertrains–Innovating for Their Future Role, International Conference Center Hiroshima, November 19-21, 2019 : Final program2020 / Paper 2019-32-0533, p. 1-8 http://www.setc-jsae.com/2019docs/SETC2019_FinalProgram_all.pdf https://www.scopus.com/sourceid/21100239259 https://www.scopus.com/record/display.uri?eid=2-s2.0-85096589349&origin=inward&txGid=da407b9297f17b38ff0f216deaf95989
• Experimental concept study of a small engine silencer unit based on microperforated elementsVillau, Margus; Rämmal, Hans; Lavrentjev, JüriProceedings of the Estonian Academy of Sciences2024 / p. 159-167 : ill., fot https://doi.org/10.3176/proc.2024.2.09 https://www.ester.ee/record=b2355998*est
• A novel design for cruiser type motorcycle silencer based on micro-perforated elementsKabral, Raimo; Rämmal, Hans; Auriemma, Fabio; Luppin, Janek; Kõiv, Risto; Tiikoja, Heiki; Lavrentjev, JüriSAE technical papers2012 https://www.researchgate.net/publication/236005547_A_Novel_Design_for_Cruiser_Type_Motorcycle_Silencer_Based_on_Micro-Perforated_Elements
• On experimental techniques to determine acoustic performance of small exhaust silencers : SAE tech. paper no. 2009-32-0015Lavrentjev, Jüri; Rämmal, HansSAE Technical Papers2009 / [6] p https://www.sae.org/publications/technical-papers/content/2009-32-0015/
• Reliability study of micro-perforated elements in small engine silencer applicationRämmal, Hans; Lavrentjev, JüriSETC 2017 : 23rd Small Engine Technology Conference “Small Engine Technology - Generating a Promising Future”, November 15-17, 2017 Jakarta, Indonesia : Final program : SAE Technical Paper2017 / 2017-32-0075, p. 37 http://www.setc-jsae.com/setc2017docs/2017finalprogram/SETC2017_Final.pdf https://www.scopus.com/sourceid/21100239259 https://www.scopus.com/record/display.uri?eid=2-s2.0-85072198720&origin=inward&txGid=66ae3d0d70a9537fe058e78a094cb502
• Упрощенный метод расчетного определения характеристик глушителя выпуска двухтактного двигателяLavrentjev, JüriАвтомобильные дороги и транспорт. 181989 / с. 49-57