Vol. 35 No. 52 (2020): Acústica e Vibrações 52

It is with great satisfaction that the Editorial Committee of Acoustic & Vibrations Journal (Revista Acústica & Vibrações) presents issue number 52, containing a series of novelties. We started by elaborating on the commission structure itself. Already in this issue we have the assistance of Associate Editors Ranny Michalski and Olavo Silva, professionals with extensive experience in A&V topics. Their contribution furthers the journal's growth. In this issue we have also counted upon Guest Editor Paulo Mareze, professor in the Acoustical Engineering Program at UFSM.

In this edition we have seven technical-scientific articles and eleven inserts. The reader can access:

• Complete magazine;
• Complete inserts;
• Articles separately; or
• Inserts separately.

Just see the links here below. Each item has its own page and it is very easy to export the bibliography, if necessary.

We hope, with each edition, to publish works from the most varied branches of acoustics and vibrations. To this end, we are investing in increasing the journal's attractiveness with the creation of new sections, with more space dedicated to the dissemination of tools and events, and with the expansion of advertising in academic circles. We would also like to thank Sobrac, the authors, and the group of peer-reviewers for their hard and dedicated work, which were essential to transform this publication into reality.

Enjoy reading!

Cordially,

Editors A&V, nº 52, July 2020.

William D’Andrea Fonseca, Ranny L. X. N. Michalski, Olavo M. Silva e Paulo Henrique Mareze

Summary content:

• Optimization of a labyrinthine acoustic metamaterial for sound absorption in the frequency range of 100 – 300 Hz;
• Development and optimization of automotive muffler oriented to Formula Student prototypes;
• Adjustment of a middle ear lumped parameters model using different objective functions;
• Occupational risk exposure to hand-arm vibrations in the operation of orbital sanders in carpentry shops;
• Acoustic adaptation of Teatro Armando Gonzaga through computer simulation;
• Perception of the acoustic quality of environments by students of Architecture and Interior Design courses;
• Initial considerations on noise regulation for eVTOL aircraft;
• Calls: Publish in A&V, Writing the article in LaTeX/Overleaf, Join Sobrac, INAD Brasil 2020, International Year of Sound 2020-2021, FIA/Sobrac Congress 2020, V SeGAV, Acoustic Congresses around the world and Proceedings online; and
• News & Reviews: Book reviews, New sound level meter B&K 2245 and FAU USP Seminar on Sound Mapping.