Results 21 to 30 of about 6,874 (266)

Reverberation Time in “Dead” Rooms [PDF]

open access: yesThe Journal of the Acoustical Society of America, 1930
An analysis based on the assumption that image sources may replace the walls of a room in calculating the rate of decay of sound intensity after the sound source is cut off gives the more general reverberation time equation T = .05V−S loga(1−aa), where T is reverberation time, V the volume of the room, S the surface of the room, and aa the average ...
openaire   +1 more source

Chinese Syllable and Phoneme Identification in Noise and Reverberation

open access: yesArchives of Acoustics, 2014
Chinese is a tonal language, which differentiates it from non-tonal languages in the Western countries. A Chinese character consists of an initial, a final, and a tone. In the present study, the effects of noise and reverberation on the Chinese syllable,
Jianxin PENG
doaj   +1 more source

The influence of the nature of sound reflection from enclosures on the reverberation processes in the rooms [PDF]

open access: yesMATEC Web of Conferences, 2019
The article considers the questions of assessment of reverberation processes in rooms with various character of a sound reflection from the enclosures.
Golovko Aleksander   +2 more
doaj   +1 more source

Evaluation of the Utility of Baseline Echocardiogram in Patients With Standard Risk Precursor B‐Lymphoblastic Leukemia

open access: yesPediatric Blood &Cancer, EarlyView.
Abstract Background A routine baseline echocardiogram is often obtained prior to anthracycline administration in children with cancer. The utility of baseline echocardiogram is unclear in patients with standard risk B‐cell acute lymphoblastic leukemia (SR B‐ALL) as their anthracycline cumulative dose is low.
Ziyad Alrajhi   +4 more
wiley   +1 more source

Optimizing acoustic conditions for two lecture rooms in Faculty of Agriculture, Cairo University

open access: yesAin Shams Engineering Journal, 2017
This paper analyses the acoustic conditions inside two lecture rooms in faculty of agriculture, Cairo University, based on field measurements and simulation technique. Ambient noise and reverberation time were measured in the unoccupied rooms.
Soha Eldakdoky
doaj   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

open access: yesFEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Tumor mutational burden as a determinant of metastatic dissemination patterns

open access: yesMolecular Oncology, EarlyView.
This study performed a comprehensive analysis of genomic data to elucidate whether metastasis in certain organs share genetic characteristics regardless of cancer type. No robust mutational patterns were identified across different metastatic locations and cancer types.
Eduardo Candeal   +4 more
wiley   +1 more source

The Effect of Reverberation Time and Signal-to-Noise Ratio On Word Recognition Scores By Adults and Children in Classrooms

open access: yesMegaron, 2019
This paper seeks to assess the effect of reverberation time, distribution of reverberation time over the frequency range and signal-to-noise ratio on speech intellibility by adults and children in classrooms by the use of phonetically balanced ...
Konca Saher, Baki Karaböce
doaj   +1 more source

Real-time reverberation generator [PDF]

open access: yesThe Journal of the Acoustical Society of America, 1975
Since the performance of an active sonar is often limited by reverberation, an instrument which could produce accurate reverberation in real time would be valuable to sonar designers, users, and evaluators. An instrument is proposed which can satisfy their needs.
openaire   +1 more source

Network Localization of Fatigue in Multiple Sclerosis

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Fatigue is among the most common symptoms and one of the main factors determining the quality of life in multiple sclerosis (MS). However, the neurobiological mechanisms underlying fatigue are not fully understood. Here we studied lesion locations and their connections in individuals with MS, aiming to identify brain networks ...
Olli Likitalo   +12 more
wiley   +1 more source

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