Results 1 to 10 of about 3,139 (119)

Establishing the adequacy of recorded acoustic surveys of forest bird assemblages [PDF]

open access: yesAvian Conservation and Ecology, 2020
The use of programmable acoustic recorders to survey forest birds is increasing owing to a range of advantages over surveys conducted by human observers.
Michael J. M. Franklin   +3 more
doaj   +5 more sources

Ultrasound- versus CT-guided Biopsy of Pleural-contact Pulmonary Lesions: A Comparative Analysis of Diagnostic Performance and Procedural Complications [PDF]

open access: yesThoracic Research and Practice
OBJECTIVE: To compare the diagnostic performance and complication profiles of ultrasound (US)-guided and computed tomography (CT)-guided biopsy in pleural-contact pulmonary lesions and to evaluate technical factors associated with pneumothorax ...
Mustafa Yeşilyurt   +3 more
doaj   +2 more sources

Spatial Hedonic Pricing Models for Testing the Adequacy of Acoustic Areas in Madrid, Spain [PDF]

open access: yesInvestigaciones Regionales - Journal of Regional Research, 2011
El ruido derivado del tráfico es una de las principales preocupaciones de las grandes ciudades. La mayoría de ellas han clasificado su territorio en áreas acústicas y han elaborado mapas estratégicos de ruido. A partir de ambas fuentes hemos creado siete
José-María Montero   +2 more
doaj   +3 more sources

Risk Factors of Arteriovenous Fistula Stenosis in Hemodialysis Patients Using Electronic Stethoscope Monitoring: Prospective Pilot Cohort Study [PDF]

open access: yesJMIR Formative Research
BackgroundArteriovenous fistula (AVF) stenosis is an important complication of hemodialysis that may impair dialysis adequacy and patient outcomes. Conventional AVF monitoring relies largely on subjective physical assessment and may delay recognition of ...
Wen-Yi Li   +3 more
doaj   +2 more sources

The service life increasing of bushings by electro-acoustic spraying [PDF]

open access: yesE3S Web of Conferences, 2021
The control of obtaining the predicted physico-mechanical properties of protective coatings of machine parts in a complex acoustic field by the method of electroacoustic spraying is carried out through the use of highly concentrated sources of electrical
Kochetov Andrei   +4 more
doaj   +1 more source

Increasing the technological process’ energy efficiency of the of applying multifunctional wear-and-heat-resistant protective coatings by electro-acoustic spraying [PDF]

open access: yesE3S Web of Conferences, 2021
The article is devoted to measures improving the energy efficiency of the technological process of applying wear-resistant multifunctional composite protective coatings by the method of electroacoustic spraying.
Kochetov Andrei   +3 more
doaj   +1 more source

Investigation of adequacy of the acoustical field model

open access: yesMechanics, 2009
This work used the 2D model to analyze the pos-sibility to model several excitation sources acting at the same time in different harmonic frequencies. The obtained results of the theoretical experiment were compared to the results of practical experiment. The adequacy of the acous-tic field’s model formed on the basis of the finite elements to the real
Mikalauskas, R.   +4 more
openaire   +3 more sources

On the adequacy of linear acoustics for prediction of acoustic pressure transients created by laser beams moving over water surfaces at sonic speeds [PDF]

open access: yesThe Journal of the Acoustical Society of America, 1986
Previous discussions of laser-generated sound, particularly with reference to themoacoustic effects, are often based on linear equations. However, seemingly plausible arguments can be developed to the effect that the peak acoustic pressure predicted by a linear theory will grow without bound when the sound is generated by a laser beam that travels for ...
Allan D. Pierce, Yves H. Berthelot
openaire   +1 more source

Caracterización y comparación del hábitat acústico de dos áreas en Tafí Viejo, Tucumán

open access: yesArea
El ruido urbano es uno de los principales contaminantes que deterioran la calidad ambiental, con efectos negativos sobre la salud auditiva, física y mental de los seres vivos.
Isabel Juarez   +3 more
doaj   +5 more sources

Application of the extended poroacoustic model of marine sediments to the calculation of the sound reflection coefficient from the seabed [PDF]

open access: yesE3S Web of Conferences, 2020
The article consider the application of the extended poroacoustic theory of the propagation of stress waves in marine sediments to the calculation of the coefficient of sound reflection from the seabed.
Lisyutin V, Yaroshenko A, Lastovenko O
doaj   +1 more source

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