Results 111 to 120 of about 93,360 (165)
Some of the next articles are maybe not open access.
Ear & Hearing, 2013
Middle ear muscle reflex (MEMR) measurements have been a part of the standard clinical immittance test battery for decades as a cross-check with the behavioral audiogram and as a way to separate cochlear from retrocochlear pathologies. MEMR responses are measured in the ear canal by using a probe stimulus (e.g., single frequency or broadband noise) to ...
Schairer, Kim S. +2 more
openaire +3 more sources
Middle ear muscle reflex (MEMR) measurements have been a part of the standard clinical immittance test battery for decades as a cross-check with the behavioral audiogram and as a way to separate cochlear from retrocochlear pathologies. MEMR responses are measured in the ear canal by using a probe stimulus (e.g., single frequency or broadband noise) to ...
Schairer, Kim S. +2 more
openaire +3 more sources
Archives of Otolaryngology - Head and Neck Surgery, 1976
To the Editor. —The article by Surr and Schuchman, "Measurement of the Acoustic Reflex Without a Pressure Seal," published in the March Archives (102:160-161, 1976), should be a reminder to those who use acoustic reflex measurements routinely, that such testing should not be abandoned simply because a hermetic seal cannot be obtained.
openaire +2 more sources
To the Editor. —The article by Surr and Schuchman, "Measurement of the Acoustic Reflex Without a Pressure Seal," published in the March Archives (102:160-161, 1976), should be a reminder to those who use acoustic reflex measurements routinely, that such testing should not be abandoned simply because a hermetic seal cannot be obtained.
openaire +2 more sources
Progress in Measurements in Acoustics
Metrologia, 1967Although the speed of sound in air was measured with reasonable accuracy about the middle of the 17th century, intensity measurements did not properly begin until Rayleigh, in 1882, published his experiments with what came to be called the Rayleigh disc. The accuracy remained relatively low (about 10%) until about 1940.
openaire +2 more sources
Acoustic measurement of the respiratory system— An acoustic pneumograph
Medical & Biological Engineering, 1976A 200 Hz tone from a sinewave generator was utilised to monitor respiration. The sound was led into the lung from the mouth and the transmitted sound was detected through the thoracic cage by a phonocardiogram microphone fixed on the chest wall. The microphone output voltage, represented by its absolute mean value, varied with the respiration of the ...
M, Miyakawa, K, Yamamoto, T, Mikami
openaire +2 more sources
Simplified Room Acoustic Measurements
The Journal of the Acoustical Society of America, 2008Standardised room acoustic measurements are needed for concert halls etc., but they imply heavy equipment. Thus, many interesting rooms are not measured. Most musicians (and even some acousticians) find that clapping and shouting in a room/hall might give an overview of the room acoustics.
T HALMRAST, A BUEN
openaire +1 more source
Acoustic Measurements of Objective Tinnitus
Journal of Speech, Language, and Hearing Research, 1990Ear canal sound pressure levels were measured from a 38-year-old woman who had experienced objective tinnitus in her right ear for approximately 2 years. The tinnitus sounded like a series of “sighs” that were synchronous with her pulse rate. Because the level of the tinnitus fluctuated in a pulsing manner, it appeared to be of vascular origin ...
C A, Champlin +2 more
openaire +2 more sources
Acoustic measurement of erythrocyte compressibility
The Journal of the Acoustical Society of America, 1982Adiabatic compressibility of red blood cells obtained from humans using a modified ultrasound velocity technique has been determined and correlated to the mean cellular hemoglobin concentration of the red blood cells. The ultrasound technique has an accuracy of better than 0.1%.
K K, Shung, B A, Krisko, J O, Ballard
openaire +2 more sources
Interlaboratory Acoustic Power Measurement
Journal of Ultrasound in Medicine, 2003This article describes an American Institute of Ultrasound in Medicine-sponsored intercomparison of the results of acoustic power measurements performed by several laboratories.Two primary calibration techniques, namely, planar scanning and radiation force balance, were used in the frequency range typical of that in which sonographic imaging devices ...
Peter A, Lewin +4 more
openaire +2 more sources
Accuracy of Acoustic Rhinometry Measurements
The Laryngoscope, 2001AbstractObjectives To identify the factors that influence the accuracy of acoustic rhinometry measurements recorded with commercially available equipment.Study Design A simple model was used which consisted of a metal pipe and cylindrical inserts. These inserts comprised various lengths, and aperture dimensions were comparable to, or smaller than, the ...
O, Cakmak +3 more
openaire +2 more sources
Acoustic characteristics of stethophonendoscopes and their measurement
Biomedical Engineering, 19721. The method that has been described takes account of the patient-stethophonendoscope-doctor system.
B E, Votchal +2 more
openaire +2 more sources