Naršyti pagal autorių "Astrauskas, Tomas"
Dabar rodomi įrašai 1-20 iš 33
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Acoustic composite panels based on recycled paper sludge
Astrauskas, Tomas; Grubliauskas, Raimondas (Advances in acoustics, noise and vibration – 2021 : Proceedings of the 27th international congress on sound and vibration (ICSV27), 11-16 July 2021, 2021)Recent trends in waste management have initiated interest in recycled materials for sound absorption applications. The present paper studies the possibility of paper sludge to be recycled as material for sound absorption ... -
Acoustic panels based on recycled paper sludge and lime composites
Astrauskas, Tomas; Picó, Rubén; Sánchez-Morcillo, Víctor J.; Grubliauskas, Raimondas (International journal of environmental science and technology, 2022)Recent trends in waste management have initiated interest in recycled materials for sound absorption applications. The present paper studies the possibility of paper sludge to be recycled as material for sound absorption ... -
Acoustic panels made of paper sludge and clay composites
Astrauskas, Tomas; Januševičius, Tomas; Grubliauskas, Raimondas (Sustainability: Section: Sustainable materials, 2021)Studies on recycled materials emerged during recent years. This paper investigates samples’ sound absorption properties for panels fabricated of a mixture of paper sludge (PS) and clay mixture. PS was the core material. ... -
Development of composite acoustic panels of waste tyre textile fibres and paper sludge
Ružickij, Robert; Kizinievič, Olga; Grubliauskas, Raimondas; Astrauskas, Tomas (Sustainability: Special issue: Efficient use and recovery of resources for the purpose of circular economy and sustainability, 2023)Since society is moving towards sustainable development, interest in secondary use of waste has recently become significant. This paper investigates a process to develop an acoustic material, using two types of waste. ... -
Effect of perforation hole shape and angle on sound absorption in perforated plastic panels
Astrauskas, Tomas; Ružickij, Robert; Naimušin, Andrej; Bradulienė, Jolita; Pranskevičius, Mantas; Januševičius, Tomas (13th International Conference “Environmental Engineering” (ICEE-2026), 2026)This study investigates the influence of hole shape on the sound absorption performance of perforated plastic panels. Circular, square, diamond, and teardrop curve shapes were selected for this study. A series of ... -
Evaluation and Analysis of Traffic Calming Measures Influence to Vibration Spread in Environment
Astrauskas, TomasThe final Master ‘s thesis analyses the vertical traffic calming measure impact to the traffic induced ground-borne vibration. Season change is taken into account. Aim of thesis is to evaluate the impact to traffic induced ... -
Experimental research of acoustic louver sound insulation
Astrauskas, Tomas; Vilniškis, Tomas; Khrystoslavenko, Olga; Januševičius, Tomas; Grubliauskas, Raimondas (5th SAPEM 2017 Symposium on the Acoustics of Poro-Elastic Materials, December 6-7-8, 2017 Le Mans, France, 2018)Acoustic louver is a structural element that controls noise and at the same time enabling air ventilation of engineering equipment. Experimental research of acoustic louver is done in semi – anechoic chamber. This chamber ... -
Garsą sugeriančių plokščių paviršiaus ploto įtakos patalpos aidėjimo trukmei vertinimas
Astrauskas, Tomas; Grubliauskas, Raimondas (21-osios Lietuvos jaunųjų mokslininkų konferencijos „Mokslas – Lietuvos ateitis“ teminė konferencija "Aplinkos apsaugos inžinerija", 2018 m. kovo 20 d. Vilnius = Proceedings of the 21th Conference for Junior Researchers „Science – Future of Lithuania“ "Environmental protection engineering", 20 March 2018, Vilnius, Lithuania, 2018)Patalpos aidėjimo trukmė RT,60 labiausiai priklauso nuo garsą sugeriančių medžiagų paviršiaus ploto patalpoje. Patalpų aidėjimo trukmei mažinti gyvenamuosiuose ir visuomeninės paskirties pastatuose naudojamos lengvos, ... -
Garsą sugeriančių plokščių paviršiaus ploto įtakos patalpos aidėjimo trukmei vertinimas
Astrauskas, Tomas; Grubliauskas, Raimondas (Aplinkos apsaugos inžinerija: 21-osios jaunųjų mokslininkų konferencijos „Mokslas – Lietuvos ateitis“ teminė konferencija / Environmental protection engineering: 21st Conference for Junior Researchers "Science - Future of Lithuania", 2018)Patalpos aidėjimo trukmė RT,60 labiausiai priklauso nuo garsą sugeriančių medžiagų paviršiaus ploto patalpoje. Patalpų aidėjimo trukmei mažinti gyvenamuosiuose ir visuomeninės paskirties pastatuose naudojamos lengvos, ... -
Granuliuotų medžiagų garso sugerties prognozavimas ir vertinimas
Astrauskas, Tomas; Grubliauskas, Raimondas (22-osios Lietuvos jaunųjų mokslininkų konferencijos „Mokslas – Lietuvos ateitis“ teminė konferencija "Aplinkos apsaugos inžinerija", 2019 m. kovo 20 d. Vilnius = Proceedings of the 22th conference for junior researchers „Science – future of Lithuania“ "Environmental protection engineering", 20 March 2019, Vilnius, Lithuania, 2019)Popieriaus gamybos dumblas – tai popieriaus pramonės įmonėse susidarančios nuotekų valymo atliekos. Šioms atliekoms tvarkyti skiriama vis daugiau dėmesio, todėl mokslininkai ieško būdų, kaip efektyviau galima būtų jas ... -
Granuliuotų medžiagų garso sugerties prognozavimas ir vertinimas
Astrauskas, Tomas; Grubliauskas, Raimondas (Aplinkos apsaugos inžinerija: 22-osios jaunųjų mokslininkų konferencijos „Mokslas – Lietuvos ateitis“ teminė konferencija / Environmental protection engineering: 22nd Conference for Junior Researchers "Science - Future of Lithuania", 2019)Popieriaus gamybos dumblas – tai popieriaus pramonės įmonėse susidarančios nuotekų valymo atliekos. Šioms atliekoms tvarkyti skiriama vis daugiau dėmesio, todėl mokslininkai ieško būdų, kaip efektyviau galima būtų jas ... -
Investigation and evaluation of speed table influence on road traffic induced ground borne vibration
Astrauskas, Tomas; Grubliauskas, Raimondas; Januševičius, Tomas (10th International conference "Environmental Engineering", 27-28 April 2017, Vilnius Gediminas Technical University, Lithuania, 2017)Vertical Speed Control Measures are vertical elevated segments of roadway that require a vehicle to slow. Typical vertical speed control measures include speed humps, speed tables, raised sidewalks and raised intersections. ... -
Investigation and evaluation of speed table influence on road traffic induced Ground borne vibration
Astrauskas, Tomas; Grubliauskas, Raimondas; Januševičius, Tomas (10th International Conference “Environmental Engineering” (ICEE-2017), 2017)Vertical Speed Control Measures are vertical elevated segments of roadway that require a vehicle to slow. Typical vertical speed control measures include speed humps, speed tables, raised sidewalks and raised intersections. ... -
Investigation and evaluation of speed table influence on traffic noise propagation in residential area
Astrauskas, Tomas; Grubliauskas, Raimondas (Mokslas - Lietuvos ateitis : Aplinkos apsaugos inžinerija = Science - Future of Lithuania : Environmental protection engineering, 2016)Speed table is an artificial road (street) surface irregularity, which is used to reduce speed of road traffic or maintain allowed speed limit in road (street) section. These measures are used to reduce risk for pedestrians ... -
Kompozitinių plokščių iš popieriaus gamybos dumblo akustinių savybių tyrimai ir garso absorberio kūrimas
Astrauskas, Tomas (2022)Disertacijoje nagrinėjamos kompozitinės akustinės garsą sugeriančios plokštės, pagamintos popieriaus gamybos dumblo pagrindu. Pagrindinis tyrimo objektas – popieriaus gamybos dumblo kompozitinės plokštės. Disertacijos ... -
Louvred noise barrier for traffic noise reduction
Astrauskas, Tomas; Baltrėnas, Pranas; Januševičius, Tomas; Grubliauskas, Raimondas (The Baltic journal of road and bridge engineering, 2021)Environmental issues near roads become more and more important in our society daily life. One of the most critical environmental issues is traffic noise. The present paper study louvred noise barrier designed by authors. ... -
Method to recycle paper sludge waste: production of panels for sound absorption applications
Astrauskas, Tomas; Grubliauskas, Raimondas (Environmental and climate technologies, 2020)Paper sludge is the water treatment waste, which produced during paper production. Paper sludge (PS) waste utilization is the common problem in the EU and internationally. According to the waste management directive No. ... -
Modelling of ground borne vibration induced by road transport
Astrauskas, Tomas; Grubliauskas, Raimondas (Mokslas - Lietuvos ateitis : Aplinkos apsaugos inžinerija = Science - Future of Lithuania : Environmental protection engineering, 2017)Ground-borne vibrations induced by road transport is common source of environmental problem for residents living near roads where large flow of vehicles is. Any irregular unevenness of road surface increase the transport ... -
Modelling of incident wave sound absorption coefficient of paper sludge panels
Astrauskas, Tomas; Grubliauskas, Raimondas (11th International conference "Environmental Engineering", 21-22 May 2020, Vilnius Gediminas Technical University, Lithuania, 2020)Paper sludge is the water treatment waste, which produced during paper production. Paper sludge (PS) waste utilization is the common problem in the EU and internationally. According to authors Frías et al. paper sludge is ... -
Modelling of incident wave sound absorption coefficient of paper sludge panels
Astrauskas, Tomas; Grubliauskas, Raimondas (11th International Conference “Environmental Engineering” (ICEE-2020), 2020)Paper sludge is the water treatment waste, which produced during paper production. Paper sludge (PS) waste utilization is the common problem in the EU and internationally. According to authors Frías et al. paper sludge is ...