Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Ioan Călin Roșca"'
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:
Maria Violeta Guiman, Mariana Domnica Stanciu, Ioan Călin Roșca, Sergiu Valeriu Georgescu, Silviu Marian Năstac, Mihaela Câmpean
Publikováno v:
Materials, Vol 16, Iss 17, p 5998 (2023)
The purpose of the study was to analyze the influence of the quality class and the orthotropy of wood upon the sound absorption coefficient, the reflection and the impedance ratio of two species widely used for stringed musical instruments, namely sp
Externí odkaz:
https://doaj.org/article/bbded210633844d480a147b3b2aa7b53
Autor:
Mircea Mihălcică, Mariana Domnica Stanciu, Silviu Marian Nastac, Florin Dinulică, Alina Maria Nauncef, Ioan Călin Roșca, Adriana Savin
Publikováno v:
Applied Sciences, Vol 11, Iss 23, p 11297 (2021)
The paper aims to investigate old and new violins from the perspective of the correlation between the anatomical structure of spruce and maple wood, and the dynamic response of violins. Thus, in the first stage, for each violin, the characteristics o
Externí odkaz:
https://doaj.org/article/32e27aa18aef4ef29e2aed9d29ed7f75
Publikováno v:
Polymers, Vol 13, Iss 6, p 898 (2021)
Currently there are many applications for the use of composites reinforced with fiberglass mat and fabrics with polyester resin: automotive, aerospace, construction of wind turbines blades, sanitary ware, furniture, etc. The structures made of compos
Externí odkaz:
https://doaj.org/article/4bec97c6816a49d680afa2e4e2f766db
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
Autor:
Maria Violeta Guiman, Ioan Călin Roșca
Publikováno v:
Shock and Vibration, Vol 2017 (2017)
An optimization method of the vibrating horns is presented considering the smallest action principle and the attached cutting tool mass. The model is based on Webster’s wave propagation equation and as an objective function the minimization of the
Externí odkaz:
https://doaj.org/article/a656288b86ce4233b0e63d6b3b872af5
Publikováno v:
Vibroengineering PROCEDIA. 46:54-60
A force transducer-based plate dynamometer for milling force measurements is presented in this paper. The main components of the designed dynamometer were described, and experimental modal analysis was carried out while considering the dynamometer as
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f30721d55b138bafca6a5a355710e1ab
https://doi.org/10.21595/vp.2022.23009
https://doi.org/10.21595/vp.2022.23009
Autor:
Alina Maria Nauncef, Mircea Mihălcică, Ioan Călin Roșca, Vasile Ghiorghe Gliga, Rodica Marc, Cristian Mureșan
Publikováno v:
Review of Artistic Education. 23:111-119
The paper presents the interdisciplinary approach to assessing the acoustic quality of violins through a survey addressed to specialists in the field of music - instrumentalists, teachers, artists. Violins with modified geometric parameters in interm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3a779884fcbd03a5ae51c4778cc4e738
https://doi.org/10.2478/rae-2022-0014
https://doi.org/10.2478/rae-2022-0014
Autor:
Mariana Domnica Stanciu, Alina Maria Nauncef, Constantin Nicolae Crețu, Mihaela Câmpean, Ioan Călin Roșca, Florin Dinulică, Camelia Cerbu, Mircea Mihălcică, Vasile Ghiorghe Gliga, Adriana Savin, Silviu Marian Nastac
Publikováno v:
Review of Artistic Education. 24:330-338
The paper presents the interdisciplinary approach of two fields - the artistic (musical) and technical (forestry engineering, wood processing engineering, mechanical and physical engineering) apparently opposite but which can be happily exploited for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cbaa7cd38d9c1c99c78820d2bc76e2b2
https://doi.org/10.2478/rae-2022-0039
https://doi.org/10.2478/rae-2022-0039
Publikováno v:
Procedia Manufacturing. 32:216-223
Sustainable building materials are required in the construction industry due to the fact that in the last years the development was based on obtaining the maximum profit without thinking to the consequences on the environment and human life. Through
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb706b6097f97004c675cd7707249e6a
https://doi.org/10.1016/j.promfg.2019.02.205
https://doi.org/10.1016/j.promfg.2019.02.205