Zobrazeno 1 - 10
of 2 642
pro vyhledávání: '"target strength"'
Publikováno v:
Jurnal Teknologi Perikanan dan Kelautan, Vol 15, Iss 3, Pp 235-244 (2024)
Ikan gabus (Channa striata) merupakan ikan karnivora yang banyak ditangkap karena rasa dagingnya yang gurih. Keberadaan ikan gabus di Indonesia menyebar dengan sangat luas, namun ancaman terhadap anakan gabus secara terus menerus dapat berakhir denga
Externí odkaz:
https://doaj.org/article/354e0a21899b4dea8446bfc887d34cc9
Publikováno v:
Jurnal Teknologi Perikanan dan Kelautan, Vol 15, Iss 2, Pp 211-222 (2024)
Ikan lele memiliki bentuk tubuh yang lonjong dan ramping, dengan kepala yang relatif besar dan mulut yang lebar dengan kulit halus dan berwarna gelap, cenderung kehitaman atau kebiruan dengan bintik-bintik kecil berwarna putih. Ikan gabus memiliki si
Externí odkaz:
https://doaj.org/article/1485b1d45b6243c98a137a44bb8cef93
Publikováno v:
Fisheries and Aquatic Sciences, Vol 27, Iss 4, Pp 225-230 (2024)
We examined the dB difference in target strength at multiple frequencies (ΔTS) for the identification of Antarctic krill (Euphausia superba) and ice krill (Euphausia crystallorophias) using a stochastic distorted-wave Born approximation model. Our i
Externí odkaz:
https://doaj.org/article/5734bf0a6c944b71b2bd54dfb6cfd5ee
Publikováno v:
Hybrid Advances, Vol 7, Iss , Pp 100290- (2024)
Geopolymer Concrete (GPC) is an innovative type of concrete that offers significant advancements in sustainability and environmental impact, particularly in the areas of recycling and alternative construction techniques. Geopolymers provide a sustain
Externí odkaz:
https://doaj.org/article/91d1cda8841847dcb0ecbf99c4ccb66a
Autor:
Sathish Kumar, Ravikumar Chinthaginjala, Rajesh Anbazhagan, Vincent Omollo Nyangaresi, Giovanni Pau, P. Srinivasa Varma
Publikováno v:
IEEE Access, Vol 12, Pp 4859-4870 (2024)
The ability to identify asymptotic scattering is critical for the continuous operation of modern combat systems. In the active sonar equation, acoustic target strength is crucial. The plane-wave propagation target strength equation predicts far-field
Externí odkaz:
https://doaj.org/article/a6b240d532af4921a1d5b535824ebde2
Publikováno v:
Acoustics, Vol 5, Iss 4, Pp 1148-1160 (2023)
From a strategic point of view, it is essential to protect underwater vehicles from being detected by opponents. Modern mono- or bistatic sonar systems are capable of precisely determining the position of a watercraft. In order to triangulate the pos
Externí odkaz:
https://doaj.org/article/128752688a7b4f9ab5f35be9c3f5afaa
Publikováno v:
Fishes, Vol 9, Iss 10, p 371 (2024)
The rockfish (Sebastes schlegeli) and striped beakperch (Oplegnathus fasciatus) were released in marine ranching areas in Korea, Japan, and China to maintain fishery resources in coastal areas. To estimate the density and biomass of fishery resources
Externí odkaz:
https://doaj.org/article/430ab89f402d45eebd8092ac51ec0f32
Publikováno v:
Journal of Marine Science and Engineering, Vol 12, Iss 9, p 1500 (2024)
The Northwest Pacific chub mackerel (Scomber japonicus) is one of the most productive, economically important fishery resources worldwide. Accurately assessing this species and ensuring adherence to total allowable catch limits are crucial owing to f
Externí odkaz:
https://doaj.org/article/eb7ea01694334754ad5eb599be100563
Publikováno v:
水下无人系统学报, Vol 31, Iss 5, Pp 725-734 (2023)
In order to study the acoustic scattering of underwater targets, the conversion factor of plane wave and spherical wave of point sound source was calculated on the basis of the analytical solution of the classical Rayleigh normal series, combined wit
Externí odkaz:
https://doaj.org/article/d9e5aba1d510400f92e5e65d273d7509
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