Zobrazeno 1 - 10
of 197
pro vyhledávání: '"Xiaohua Jian"'
Publikováno v:
Diagnostics, Vol 13, Iss 8, p 1467 (2023)
Mechanical scanning with a single transducer is an alternative method for high-frequency ultrasound imaging, which is simple in structure, convenient to implement, and low in cost. However, traditional mechanical scanning ultrasonic imaging introduce
Externí odkaz:
https://doaj.org/article/299ceafb149440f3a7dd76515f893c16
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-9 (2020)
Miniaturizing efficient triboelectric nanogenerators remains a challenge. Here, the authors propose a MEMS-based micro triboelectric device for acoustic energy transfer and signal communication which is capable of generating the voltage signal of 16.
Externí odkaz:
https://doaj.org/article/30aaff520b784f6a98389bbd1a6b7826
Publikováno v:
IEEE Access, Vol 8, Pp 109241-109248 (2020)
Endoscopic transducer with small size and high frequency has been widely studied and applied in medical ultrasound imaging. However, attenuation affects high frequency ultrasound waves to a greater degree than lower frequency waves, which results in
Externí odkaz:
https://doaj.org/article/885ae045b13c4d7ab7247e1960351350
Publikováno v:
IEEE Access, Vol 8, Pp 129263-129273 (2020)
In a high frequency ultrasonic imaging system, high signal-noise-ratio (SNR) is highly demanded to acquire high quality images. Transducer sensitivity enhancement is essential to increase the SNR. In this work, size effect of transducers with working
Externí odkaz:
https://doaj.org/article/f29bab9199d24c088bb9dcd1424cc9c9
Publikováno v:
Biosensors, Vol 13, Iss 1, p 32 (2022)
High-frequency ultrasound has developed rapidly in clinical fields such as cardiovascular, ophthalmology, and skin with its high imaging resolution. However, the development of multi-elements high-frequency ultrasonic transducers and multi-channel hi
Externí odkaz:
https://doaj.org/article/fb1f0ef837f54d02b4a8f2b969ce3feb
Publikováno v:
Frontiers in Materials, Vol 8 (2021)
The equivalent circuit simulation plays an important role in the design of ultrasound transducer. However, the existing methods are difficult to achieve the effect of matching and backing layer, and not able to accurately simulate the transducer with
Externí odkaz:
https://doaj.org/article/e3ed50ed8d4b4152b0c4a25fd62cd88b
Publikováno v:
Frontiers in Materials, Vol 8 (2021)
In this study, an ultrasonic phased-array transducer was proposed, which could effectively improve the imaging performance by using 1–3 piezocomposite. The piezocomposite consists of PZT and epoxy, with a pitch of 70 μm, kerf of 20 μm, and thickn
Externí odkaz:
https://doaj.org/article/f1e21c0a7dfc461c96dfa5a41d2d609d
Publikováno v:
Results in Optics, Vol 1, Iss , Pp 100015- (2020)
Photoacoustic temperature measurement (PATM) is a real-time, non-contact, and high sensitivity method, which can satisfy the requirements of spatial and temperature resolution in clinical application. But PATM has been traditionally challenging to me
Externí odkaz:
https://doaj.org/article/a55e8125a8c442edb6fb22c035d59291
Publikováno v:
Photonics, Vol 8, Iss 2, p 25 (2021)
Optoacoustic tomography (OAT) is a hybrid biomedical imaging modality that usually employs a transducer array to detect laser-generated ultrasonic signals. The reconstructed image suffers low contrast and degraded resolution due to the limited bandwi
Externí odkaz:
https://doaj.org/article/112c44668b514734992d96bc9bdbc220
Autor:
Chen Yang, Xiaohua Jian, Xinle Zhu, Jiabing Lv, Yang Jiao, Zhile Han, Antonios Stylogiannis, Vasilis Ntziachristos, George Sergiadis, Yaoyao Cui
Publikováno v:
Sensors, Vol 20, Iss 3, p 766 (2020)
Photoacoustic (PA) imaging is a hybrid imaging technique that can provide both structural and functional information of biological tissues. Due to limited permissible laser energy deposited on tissues, highly sensitive PA imaging is required. Here, w
Externí odkaz:
https://doaj.org/article/a9d50c3345384fb18c15dd196fd66991