Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Donghwan Jung"'
Publikováno v:
International Journal of Naval Architecture and Ocean Engineering, Vol 10, Iss 2, Pp 225-234 (2018)
A Multibeam Echo Sounder (MBES) is commonly used for rapid seafloor mapping. We herein present a time-domain integrated system simulation technique for MBES development. The Modeling and Simulation (M&S) modules consist of four parts: sensor array si
Externí odkaz:
https://doaj.org/article/4ce24f16b6374732ba5958206a9df5fa
Publikováno v:
Sensors, Vol 21, Iss 15, p 5085 (2021)
As a sound transmitting device that relies on the nonlinearity of a medium, a parametric array (PA) can generate high-directivity low-frequency signals using a small aperture transducer and high-frequency signals. Despite their relatively low source
Externí odkaz:
https://doaj.org/article/ae505db8d3ab4094a4afb49e666ea06d
Autor:
Donghwan Jung, Jeasoo Kim
Publikováno v:
Sensors, Vol 20, Iss 4, p 1236 (2020)
Beam pattern measurement is essential to verifying the performance of an array sonar. However, common problems in beam pattern measurement of arrays include constraints on achieving the far-field condition and reaching plane waves mainly due to limit
Externí odkaz:
https://doaj.org/article/119499038006487c931df53bd5e17284
Publikováno v:
The Journal of the Acoustical Society of America. 150(5)
Parametric arrays have been widely investigated due to their high directivity in the low-frequency region when measuring the acoustic characteristics of materials, such as sound transmission and reflection properties, in the limited space of acoustic
Publikováno v:
Sensors (Basel, Switzerland)
Sensors, Vol 21, Iss 5085, p 5085 (2021)
Sensors, Vol 21, Iss 5085, p 5085 (2021)
As a sound transmitting device that relies on the nonlinearity of a medium, a parametric array (PA) can generate high-directivity low-frequency signals using a small aperture transducer and high-frequency signals. Despite their relatively low source
Autor:
Jea-Soo Kim, Donghwan Jung
Publikováno v:
Sensors
Volume 20
Issue 4
Sensors, Vol 20, Iss 4, p 1236 (2020)
Sensors (Basel, Switzerland)
Volume 20
Issue 4
Sensors, Vol 20, Iss 4, p 1236 (2020)
Sensors (Basel, Switzerland)
Beam pattern measurement is essential to verifying the performance of an array sonar. However, common problems in beam pattern measurement of arrays include constraints on achieving the far-field condition and reaching plane waves mainly due to limit
Publikováno v:
The Journal of the Acoustical Society of America. 150:A126-A126
The parametric array that generates narrow beams at low frequencies with apertures shorter than the wavelength and has been widely investigated when measuring the acoustic characteristics of materials, such as sound transmission and reflection prope
Publikováno v:
The Journal of the Acoustical Society of America. 150:A126-A126
To evaluate the performance of an equipment or object in underwater acoustics, the acoustic properties of acoustic materials should be accurately predicted and measured. The measurement of acoustic properties via panel testing in water tank require a
Autor:
DongHwan Jung
Publikováno v:
Annals of Hepato-Biliary-Pancreatic Surgery. 25:S147-S147
Lecture Corticosteroids and antimetabolites, with the addition of calcineurin inhibitors (CNIs) a decade later, were the first immunosuppressive agents used among liver transplantation (LT) recipients. They are currently among the most common choices
Publikováno v:
PROCEEDINGS OF THE CONFERENCE AT THE CIE MIDTERM MEETING 2017 23 – 25 OCTOBER 2017, JEJU, REPUBLIC OF KOREA.