Results 61 to 70 of about 7,123 (259)
Power series for the reverberation time [PDF]
The Journal of the Acoustical Society of America, 1979 A power series is derived for 1/T, the reciprocal of the geometrical-acoustics reverberation time of an enclosure. The first term is Sabine's expression and the second term provides a correction to the Sabine value in many practical cases where his value is a good, but not quite good enough, estimate of T. The Eyring formula and other expressions which
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Stage‐Dependent β‐Synuclein Links MRI and Cognitive Decline in Alzheimer's Disease
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Synaptic degeneration drives cognitive decline in Alzheimer's disease (AD), but synaptic biomarkers are scarce. Brain‐enriched β‐synuclein emerged as a synaptic damage marker. We investigated its diagnostic, prognostic, and structural correlates across the AD continuum.
Ulaş Ay +15 more
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Measurement of reverberation time using Time Delay Spectrometry (TDS)
Archives of Acoustics, 2014 In the series of papers printed in the Journal of Audio Engineering Society in late sixties and early seventies, Richard C. Heyser introduced a revolutionary measurements technique which he named Time Delay Spectrometry (TDS) [1-6].
G. PAPANIKOLAOU +2 more
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Estimation of Reverberation Time in Classrooms Using the Residual Minimization Method
Archives of Acoustics, 2017 The objective of the residual minimization method is to determine a coefficient correcting the Sabine’s model. The Sabine’s equation is the most commonly applied formula in the designing process of room acoustics with the use of analytical methods.
Artur NOWOSWIAT, Marcelina OLECHOWSKA
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Applied Sciences, 2020 In this paper, a depth-bistatic bottom reverberation model that employs the ray theory is presented. The model can be applied to an active towed array in the ocean.
Youngcheol Jung +3 more
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White Matter and Perivascular Imaging Changes in Alzheimer's Disease and Cerebral Amyloid Angiopathy
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Peak‐width of skeletonized mean diffusivity (PSMD) and diffusion tensor imaging–analysis along the perivascular space (DTI‐ALPS), reflecting white matter integrity and glymphatic function, are altered in Alzheimer's disease (AD).
Debina Laishram +3 more
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Arthritis Care &Research, EarlyView.Over the past 50 years, the science of pediatric rheumatology has grown exponentially due to an expansion in the understanding of complex rheumatic conditions and a surge in novel targeted therapeutics. Physician‐scientists in the field of pediatric rheumatology have played major roles in these advancements that have improved the care of children ...
Ekemini A. Ogbu +2 more
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Reverberation times and reverberation levels
Archives of Acoustics, 2015 Reverberation times and reverberation levels are the statistical parameters of the stochastical sound field in a room. Their theoretically derived and practically measured properties are discussed. Reverberation times and reverberation levels are place dependent, they are also to a certain extent influenced by the shape of the hall and the distribution
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Arthritis Care &Research, Accepted Article.Objective Ambulatory care sensitive conditions (ACSCs) serve as indicators of access, quality, and performance of the health system. This study aimed to determine rheumatoid arthritis (RA)‐specific ACSCs for use in the evaluation of care system access and quality.
Kara Irwin +7 more
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Measurement method of reverberation field reciprocity parameter
Zhongguo Jianchuan Yanjiu, 2017 This paper presents a method for measuring the reciprocity parameter based on the free field. It is able to achieve accurate measurement of the reverberation constant in a narrow band. The method uses the same transmitting and receiving system, and keeps
SUN Jundong, SHANG Dajing, SUN Xiaoyue
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