Results 21 to 30 of about 2,037 (120)

Medida da velocidade do som através da análise dos modos acústicos ressonantes utilizando um celular

open access: yesRevista Brasileira de Ensino de Física, 2022
Neste trabalho é proposto um método para medição da velocidade do som que faz uso de um aparato de baixo custo. O experimento utiliza um tubo semiaberto de PVC como cavidade acústica e um aplicativo gratuito de celular que detecta e processa o som ...
Giovanni Criso Ferreira   +1 more
doaj   +1 more source

Exploring Acoustic Overlap in Second Language Vowel Productions

open access: yesInternational Journal of Applied Linguistics, Volume 36, Issue 2, Page 1293-1304, May 2026.
ABSTRACT This study examines the alignment of vowel categories between second language (L2) learners and first language (L1) speakers of the target language, as well as potential overlaps between adjacent vowels in terms of formant frequencies and duration.
Georgios P. Georgiou, Elena Savva
wiley   +1 more source

MANED WOLVES IN THE ECOLOGICAL STATION OF ITIRAPINA- BRAZIL: TEMPORAL AND TERRITORIAL DISTRIBUTION OF LONG-DISTANCE VOCALIZATION.

open access: yesRevista do Instituto Florestal
The maned wolf Chrysocyon brachyurus (Illiger 1815) is considered the largest canid in South America, it has crepuscular nocturnal behavior, solitary and skittish habits.
Angelica Felicio da Costa   +1 more
doaj   +1 more source

Building trust with marginalized communities in participatory acoustic monitoring through dynamic consent

open access: yesConservation Biology, Volume 40, Issue 2, April 2026.
Abstract There exists a growing suite of technologies that support significant and exciting progress in biodiversity conservation and research. Citizen scientist participation is common in this research and often focuses on data collection and labeling.
Joycelyn Longdon   +5 more
wiley   +1 more source

Acoustic properties of aluminium foams

open access: yesMateriales de Construccion, 2008
The article discusses normal incidence sound absorption by aluminium foam manufactured with powder metallurgy technology. Aluminium foams with different surface morphologies were obtained by varying the type of precursor and adding filler materials ...
M. A. Navacerrada   +3 more
doaj   +1 more source

A Preliminary Assessment of Noise‐Related Impacts From the Urban‐Invasive Johnstone's Whistling Frog (Eleutherodactylus johnstonei) 城市入侵物种约翰斯通鸣蛙 (Eleutherodactylus johnstonei) 引起的噪声影响初步评估 Una evaluación preliminar de los impactos relacionados con el ruido de la rana silbadora de Johnstone (Eleutherodactylus johnstonei), especie urbana invasora

open access: yesIntegrative Conservation, Volume 5, Issue 1, Page 104-114, March 2026.
The Johnstone's whistling frog is an invasive species whose loud night‐time calls may affect human health and well‐being. Our study in Cali, Colombia, combined fieldwork and online surveys to assess its urban occupancy, density, and potential health impacts.
Rubén Darío Palacio, Sumana Goli
wiley   +1 more source

El aislamiento acústico en el sistema Dragados-Plastbau

open access: yesInformes de la Construccion, 1986
Los estudios y ensayos acústicos, previstos en el programa de investigación del sistema Dragados- Plastbau, fueron realizados por la U.E.I. Radiación y Propagación Acústicas del Instituto de Acústica (C.S.I.C.) con los siguientes objetivos: 1.0 ...
Antonio Moreno, José Antonio Comas
doaj   +1 more source

Cooperative human signals to honeyguides form local dialects

open access: yesPeople and Nature, Volume 8, Issue 3, Page 682-694, March 2026.
Abstract Human language enables the exchange of complex information and precise instructions for collaborative planning and action. It rapidly evolves through social learning, generating diverse cultural communication signals used not only with other humans, but also with domesticated animals bred or trained to respond.
Jessica E. M. van der Wal   +5 more
wiley   +1 more source

OUVINDO O ESPAÇO

open access: yesRevista Projetar, 2022
O artigo trata da relação entre arquitetura e música a partir do espaço como gerador e difusor das ondas sonoras, e tomando como objeto de interesse a dimensão espacial arquitetônica através das ideias compositivas e sonoras geradas a partir e com a ...
Bruno Firmino Costa da Silva   +1 more
doaj   +1 more source

Large‐Scale Forest Restoration Accompanied by Biodiversity Recovery in Costa Rica's Redistributive Payment for Ecosystem Service Program

open access: yesGlobal Change Biology, Volume 32, Issue 2, February 2026.
Transforming recorded sound into meaningful ecological insights requires carefully designed methodologies. This workflow diagram describes the steps of our analysis (contained within circles labeled 1–7), which builds on best practices to correct for potential biases.
Giacomo L. Delgado   +15 more
wiley   +1 more source

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