Results 211 to 220 of about 18,439 (273)

Variability of Echolocation Clicks in Beluga Whales (Delphinapterus leucas) Within Shallow Waters

Aquatic Mammals, 2023
While echolocation is vital to the sensory ecology of odontocetes, we have few data characterizing the signals of most species, limiting our understanding of key attributes of these animals, especially for those with a diverse range of habitats.
Zhongchang Song, T. A. Mooney, L. Quakenbush, R. Hobbs, E. Gaglione, C. Goertz, M. Castellote   +6 more
semanticscholar   +1 more source

Propagation of beluga echolocation signals

The Journal of the Acoustical Society of America, 1987
The propagation characteristics of high-frequency echolocation signals (peak energies above 100 kHz) of the beluga (Delphinapterus leucas) were measured while the animal performed a target detection task. The whale was trained to station on a bite plate so that its transmission beam could be measured in the vertical and horizontal planes using ...
W W, Au, R H, Penner, C W, Turl
openaire   +2 more sources

Effects of caffeic acid on the growth performance, growth genes, digestive enzyme activity, and serum immune parameters of beluga (Huso huso).

Journal of Experimental Zoology Part A Ecological and Integrative Physiology, 2022
Caffeic acid is a phenolic metabolite known for its beneficial pharmaceutical effects and is suggested as a functional additive for aquaculture. In this study, the effects of caffeic acid on the growth performance, growth genes, digestive enzyme activity,
E. Ahmadifar, S. Mohammadzadeh, N. Kalhor, F. Salehi, Mahboubeh Eslami, Amine Zaretabar, M. Moghadam, S. Hoseinifar, Hien Van Doan   +8 more
semanticscholar   +1 more source

CBW_CRNet: Chebyshev Beluga Whale Optimization based Convolutional Recurrent Network for Vehicle Positioning and Tracking for 6G Networks

2025 5th International Conference on Expert Clouds and Applications (ICOECA)
Accurate vehicle positioning and tracking are considered as the fundamental aspect for the seamless operation of intelligent transport system. It is accomplished through the vehicle detection and tracking mechanism.
Binu Sudhakaran Pillai, Raghavendra Kulkarni, Venkata Satya Suresh kumar Kondeti, S. R   +3 more
semanticscholar   +1 more source

Beluga: A CXL-Based Memory Architecture for Scalable and Efficient LLM KVCache Management

Proceedings of the ACM on Management of Data
The rapid increase in LLM model sizes and the growing demand for long-context inference have made memory a critical bottleneck in GPU-accelerated LLM serving.
Xinjun Yang, Qingda Hu, Junru Li, Feifei Li, Yicong Zhu, Yuqi Zhou, Qiuru Lin, Jian Dai, Yang Kong, Jiayu Zhang, Guoqiang Xu, Qiang Liu   +11 more
semanticscholar   +1 more source

The emergence and early development of socio-sexual behavior in beluga calves (Delphinapterus leucas).

Behavioural Processes, 2022
While the ontogeny of beluga (Delphinapterus leucas) socio-sexual behavior has been documented in animals between 37- and 108-months-old, the first 36 months of life are yet to be examined.
J. R. Ham, Malin K. Lilley, Jessica Lelekach, Malin R. Miller, T. Robeck, S. Pellis, H. M. Manitzas Hill   +6 more
semanticscholar   +1 more source

Microplastics in beluga whale (Delphinapterus leucas) prey: An exploratory assessment of trophic transfer in the Beaufort Sea.

Science of the Total Environment, 2021
Microplastics (MPs, 5 mm were found, and 78% of the particles observed were fibers. Based on energetic needs, we estimate that individual beluga may ingest between 3800 and 145,000 microplastics annually through trophic transfer, with uncertain health ...
R. C. Moore, M. Noel, A. Etemadifar, L. Loseto, A. Posacka, L. Bendell, P. Ross   +6 more
semanticscholar   +1 more source

Beluga whale acoustic signal classification using deep learning neural network models.

Journal of the Acoustical Society of America, 2020
Over a decade after the Cook Inlet beluga (Delphinapterus leucas) was listed as endangered in 2008, the population has shown no sign of recovery. Lack of ecological knowledge limits the understanding of, and ability to manage, potential threats impeding ...
Ming Zhong, M. Castellote, R. Dodhia, Juan M Lavista Ferres, M. Keogh, Arial M Brewer   +5 more
semanticscholar   +1 more source

Wide-Angle Scanning Thinned Phased Array Synthesis Based on Improved Multiobjective Beluga Whale Optimization Algorithm

IEEE Antennas and Wireless Propagation Letters
This letter proposes an algorithm that combines the improved multiobjective beluga whale optimization algorithm with the iterative Fourier transform (IFT) technique to optimize the sidelobe level (SLL) and directivity of the phased array.
Yuqing Zheng, C. You, Naibo Zhang, Xueyong Zhu, Yufeng Ding, Hao He   +5 more
semanticscholar   +1 more source

Organic and inorganic dietary zinc in beluga sturgeon (Huso huso): Effects on growth, hematology, tissue concertation and oxidative capacity

, 2021
A 12-week feeding trial was conducted to evaluate inorganic (zinc sulfate; ZnSul) and organic (zinc methionine; ZnMet) forms of dietary zinc (Zn) in beluga sturgeon (Huso huso) with the initial average weight of 8.4 ± 0.29 g (± SD).
M. Mohseni, Ali Hamidoghli, S. Bai
semanticscholar   +1 more source