نتایج جستجو برای: lowest frequency
تعداد نتایج: 573146 فیلتر نتایج به سال:
Phytoplankton plays an important role in the material cycle and energy flow of the ecosystem, Therefore in this study, the distribution, frequency, and biodiversity of phytoplankton in Elimalat Lake were investigated. Sampling was performed in Elimalat Lake sessonally, located in Nur City, Mazandaran province, in 2019. In this study, 70 species of phytoplankton were classified into 5 phylum ...
The importance of the beam and its engineering applications is obvious, and it undergoes different kinds of loading. Such loading may cause cracks in the beam. Crack depth and location are the main parameters for the vibration analysis of such beams. These cracks and their locations effect on the shapes and values of the beam frequency. So it becomes very important to monitor the changes in the...
The common marmoset (Callithrix jacchus) is a highly vocal New World primate species that has emerged in recent years as a promising model system for studies of auditory and vocal processing. Our recent studies have examined perceptual mechanisms related to the pitch of harmonic complex tones in this species. However, no previous psychoacoustic work has measured marmosets' frequency discriminat...
Ueda and Nakajima [Trans. Tech. Comm. Psychol. Physiol. Acoust., 38, 771-776, (2008); 39, 211-216, (2009)] found a consistent clustering of frequency bands common to different languages through factor analyses applied to power fluctuations of critical-band filtered speech sounds. One of the factors exhibited a characteristic shape of two peaks, which implied a correlation between a pair of dist...
B. B. Skorodumov,1,* G. V. Rogachev,2 P. Boutachkov,1 A. Aprahamian,1 V. Z. Goldberg,3 A. Mukhamedzhanov,3 S. Almaraz,1 H. Amro,4 F. D. Becchetti,4 S. Brown,2,5 Y. Chen,4 H. Jiang,4 J. J. Kolata,1 L. O. Lamm,1 M. Quinn,1 and A. Woehr1 1Institute for Structure and Nuclear Astrophysics, University of Notre Dame, Notre Dame, Indiana 46556, USA 2Physics Department, Florida State University, Tallaha...
This paper gives a CREW PRAM algorithm for the problem of finding lowest common ancestors in a forest under the insertion of leaves and roots and the deletion of leaves. For a forest with a maximum of n vertices, the algorithm takes O(m/p + r log p + min(m, r log n)) time and O(n) space using p processors to process a sequence of m operations that are presented over r rounds. Furthermore, lowes...
Let q denote the finite field GF (q) and let b be a positive integer. MDS codes over the symbol alphabet b q are considered that are linear over q and have sparse (“low-density”) parity-check and generator matrices over q that are systematic over bq . Lower bounds are presented on the number of nonzero elements in any systematic parity-check or generator matrix of an q-linear MDS code over bq, ...
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