Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Mihaela Coșniță"'
Autor:
Mariana Domnica Stanciu, Mihaela Coșniță, Ghiorghe Vasile Gliga, Lidia Gurau, Maria Cristina Timar, Maria Violeta Guiman, Silviu Marian Năstac, Ioan Călin Roșca, Voichita Bucur, Florin Dinulică
Publikováno v:
Advanced Materials Interfaces, Vol 11, Iss 10, Pp n/a-n/a (2024)
Abstract The study investigates the effect of the type of varnish and the number of layers on some acoustic properties of the resonance spruce in combination with the changes produced in some physical, morphological, and chemical properties of wood.
Externí odkaz:
https://doaj.org/article/b985db157ce747f3acba31863a4e7c29
Autor:
Mihai Alin Pop, Cătălin Croitoru, Simona Matei, Sebastian-Marian Zaharia, Mihaela Coșniță, Cosmin Spîrchez
Publikováno v:
Polymers, Vol 16, Iss 5, p 672 (2024)
Sustainable building materials with excellent thermal stability and sound insulation are crucial for eco-friendly construction. This study investigates biocomposites made from cellulose pulp reinforced with beeswax, fir resin, and natural fillers lik
Externí odkaz:
https://doaj.org/article/a430061428f94803bdbc6be4a7e436eb
Autor:
Simona Matei, Mihai Alin Pop, Sebastian-Marian Zaharia, Mihaela Coșniță, Cătălin Croitoru, Cosmin Spîrchez, Cristina Cazan
Publikováno v:
Materials, Vol 17, Iss 3, p 580 (2024)
Sound-absorbing panels are widely used in the acoustic design of aircraft parts, buildings and vehicles as well as in sound insulation and absorption in areas with heavy traffic. This paper studied the acoustic properties of sound-absorbing panels ma
Externí odkaz:
https://doaj.org/article/7d961d7b699d4ee882b9a6763b4cff82
Autor:
Eva Fazakas, Bela Varga, Victor Geantă, Tibor Berecz, Péter Jenei, Ionelia Voiculescu, Mihaela Coșniță, Radu Ștefănoiu
Publikováno v:
Materials, Vol 12, Iss 6, p 926 (2019)
The paper presents the microstructure and corrosion behavior of an AlTiNiCuAgSn new equiatomic multicomponent alloy. The alloy was obtained using the vacuum arc remelting (VAR) technique in MRF-ABJ900 equipment. The microstructural analysis was perfo
Externí odkaz:
https://doaj.org/article/a8e041afffbb499498893e8b36e49913
Autor:
Ionelia Voiculescu, Bela Varga, Mihaela Coșniță, Victor Geanta, Péter Jenei, Éva Fazakas, Radu Ștefănoiu, Tibor Berecz
Publikováno v:
Materials
Volume 12
Issue 6
Materials, Vol 12, Iss 6, p 926 (2019)
Volume 12
Issue 6
Materials, Vol 12, Iss 6, p 926 (2019)
The paper presents the microstructure and corrosion behavior of an AlTiNiCuAgSn new equiatomic multicomponent alloy. The alloy was obtained using the vacuum arc remelting (VAR) technique in MRF-ABJ900 equipment. The microstructural analysis was perfo
Autor:
Sebastian-Marian Zaharia, Mihai Alin Pop, Mihaela Cosnita, Cătălin Croitoru, Simona Matei, Cosmin Spîrchez
Publikováno v:
Polymers, Vol 15, Iss 18, p 3695 (2023)
The 3D printing process allows complex structures to be obtained with low environmental impact using biodegradable materials. This work aims to develop and acoustically characterize 3D-printed panels using three types of materials, each manufactured
Externí odkaz:
https://doaj.org/article/5230460faea74fcdab5a4dee74ea18cb
Autor:
Mihai Alin Pop, Mihaela Cosnita, Cătălin Croitoru, Sebastian Marian Zaharia, Simona Matei, Cosmin Spîrchez
Publikováno v:
Polymers, Vol 15, Iss 11, p 2487 (2023)
The first part of this paper is dedicated to obtaining 3D-printed molds using poly lactic acid (PLA) incorporating specific patterns, which have the potential to serve as the foundation for sound-absorbing panels for various industries and aviation.
Externí odkaz:
https://doaj.org/article/b9be3003552445cc9213cdc2fd55c12e
Autor:
Lidia Gurău, Maria Cristina Timar, Camelia Coșereanu, Mihaela Cosnita, Mariana Domnica Stanciu
Publikováno v:
Polymers, Vol 15, Iss 7, p 1794 (2023)
The acoustic features of old resonance wood in violins exhibit a superior quality when compared to those from new resonance wood. This study focuses on an assessment of the sound quality of two types of wood for musical instruments, spruce and maple
Externí odkaz:
https://doaj.org/article/4bfba03e4d444dd688bbda1e34e4afbe
Autor:
Mariana Domnica Stanciu, Mihaela Cosnita, Constantin Nicolae Cretu, Horatiu Draghicescu Teodorescu, Mihai Trandafir
Publikováno v:
Materials, Vol 15, Iss 15, p 5192 (2022)
Music should be integrated into our daily activities due to its great effects on human holistic health, through its characteristics of melody, rhythm and harmony. Music orchestras use different instruments, with strings, bow, percussion, wind, keyboa
Externí odkaz:
https://doaj.org/article/635e898b58aa486395a0514e1d65e277
Publikováno v:
Polymers, Vol 14, Iss 10, p 1957 (2022)
The paper presents new value-added composite materials prepared by recycling tire rubber, polyethene terephthalate (PET), high-density polyethene (HDPE), wood sawdust, and fly ash. The composites were manufactured through the compression molding tech
Externí odkaz:
https://doaj.org/article/4ff920228acb46bab51b5fd35f2fb520