Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Cosmin SPÎRCHEZ"'
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:
Cosmin Spîrchez, Aurel Lunguleasa, Carmen-Mihaela Popescu, Anamaria Avram, Constantin Stefan Ionescu
Publikováno v:
Applied Sciences, Vol 13, Iss 21, p 11950 (2023)
In a context where there is an increasing need for thermal treatments of wooden products, the current research contributes a description of the torrefaction treatment of two of the composite wood materials available on the international market. The p
Externí odkaz:
https://doaj.org/article/e989dde6626141daa2771b876f43308c
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
Publikováno v:
Pro Ligno, Vol 11, Iss 4, Pp 692-698 (2015)
This paper compares briquettes made of spruce with those made of beech from the perspective of physical, mechanical and energetic features, for the purpose of making the appropriate selection from the market. The main properties being studied are b
Externí odkaz:
https://doaj.org/article/978542380cd546c3b0245d53b2982b5d
Publikováno v:
Pro Ligno, Vol 11, Iss 4, Pp 487-493 (2015)
The paper presents the results of an experimental research performed on a CNC machine tool type ISEL-GFV considering the vibration level developed during the manufacturing of different pieces of particleboard at six processing regimes. There were r
Externí odkaz:
https://doaj.org/article/4569b6f4ff0f42a9949c730ea4a6298c
Publikováno v:
BioResources. 13:6985-7001
In the industrial processing of logs, large amounts of bark can be utilized as pellets. This study sought to establish conditions for the efficient use of bark, in the form of pellets, as a solid, renewable fuel. First, the physical properties of the
Publikováno v:
BioResources. 12:8595-8611
The main purpose of this study was to find the optimal conditions for thermal treatment of white wood pellets. Other goals of this study were to compare torrefied and white pellets and to model the treatment process. Three types of pellets acquired f
Publikováno v:
Forests, Vol 15, Iss 6, p 902 (2024)
The energetic fossil resources of the world have decreased drastically in recent decades, and the quick and efficient solution to replace them is to use renewable biomass resources. This category also includes vegetable biomass, and within it, sunflo
Externí odkaz:
https://doaj.org/article/b214a9944448468685735a36b910471c