Zobrazeno 1 - 10
of 76
pro vyhledávání: '"Chengzhi Shi"'
Publikováno v:
Frontiers in Genetics, Vol 15 (2024)
Background:Psoriasis represents a multifaceted and debilitating immune-mediated systemic ailment afflicting millions globally. Despite the continuous discovery of biomarkers associated with psoriasis, identifying lysosomal biomarkers, pivotal as cell
Externí odkaz:
https://doaj.org/article/5758624ae28041de9f9e1cf6642962d4
Autor:
Alessandro R. Howells, Phoebe J. Welch, John Kim, Craig R. Forest, Chengzhi Shi, Xiaojun Lance Lian
Publikováno v:
Bioengineering & Translational Medicine, Vol 9, Iss 2, Pp n/a-n/a (2024)
Abstract A promising new field of genetically encoded ultrasound contrast agents in the form of gas vesicles has recently emerged, which could extend the specificity of medical ultrasound imaging. However, given the delicate genetic nature of how the
Externí odkaz:
https://doaj.org/article/7fcc67068fa64fb19fa35e3652af9893
Autor:
Bohua Zhang, Huaiyu Wu, Howuk Kim, Phoebe J. Welch, Ashley Cornett, Greyson Stocker, Raul G. Nogueira, Jinwook Kim, Gabe Owens, Paul A. Dayton, Zhen Xu, Chengzhi Shi, Xiaoning Jiang
Publikováno v:
Research, Vol 6 (2023)
This research aims to demonstrate a novel vortex ultrasound enabled endovascular thrombolysis method designed for treating cerebral venous sinus thrombosis (CVST). This is a topic of substantial importance since current treatment modalities for CVST
Externí odkaz:
https://doaj.org/article/d46d7467a2c54133a329c2bf1e07cc46
Autor:
Chengzhi Shi
Publikováno v:
Frontiers in Mechanical Engineering, Vol 7 (2021)
Externí odkaz:
https://doaj.org/article/6316bc5701a640f3be87be8986e60d96
Publikováno v:
AIP Advances, Vol 11, Iss 12, Pp 125224-125224-6 (2021)
Parity-time (PT) symmetry was first studied in quantum mechanical systems with a non-Hermitian Hamiltonian whose observables are real-valued. Most existing designs of PT symmetric systems in electronics, optics, and acoustics rely on an exact balance
Externí odkaz:
https://doaj.org/article/1ea7990dd93e4ac4aeec507696c2d498
Publikováno v:
Frontiers in Mechanical Engineering, Vol 6 (2020)
High resolution diagnostic ultrasound imaging requires the use of high frequency acoustic transmission deep into the body. However, the presence of high impedance, lossy barriers such as the skull scatters and damps the energy delivered to the target
Externí odkaz:
https://doaj.org/article/b368e0e75ac641ac8e90ce20c9d04b4e
Publikováno v:
Nature Communications, Vol 8, Iss 1, Pp 1-6 (2017)
Impedance mismatch between acoustic metamaterials and a surrounding medium hinders efficient applications, especially for zero-index materials. Here, Duboiset al. utilize the Dirac-like dispersion in a double-zero-index material to overcome this prob
Externí odkaz:
https://doaj.org/article/26e8043ca24343f38ffb77bb7ac803d6
Publikováno v:
Nature Communications, Vol 7, Iss 1, Pp 1-5 (2016)
Parity-time phase transition and exceptional points contribute to the design of many components, but are hard to access due to the dispersive nature of the required materials. Here, the authors introduce a method to systematically control acoustic pa
Externí odkaz:
https://doaj.org/article/ad1f27f04bc647d882bec53a07e58f83
Publikováno v:
Physical Review X, Vol 4, Iss 3, p 031042 (2014)
We introduce here the concept of acoustic parity-time (PT) symmetry and demonstrate the extraordinary scattering characteristics of the acoustic PT medium. On the basis of exact calculations, we show how an acoustic PT-symmetric medium can become uni
Externí odkaz:
https://doaj.org/article/967b3e2e2e5540d7b5f74f865e737820
Publikováno v:
The Journal of the Acoustical Society of America. 152(4)
Perfluorocarbon nanodroplets (PFCnDs) are ultrasound contrast agents that phase-transition from liquid nanodroplets to gas microbubbles when activated by laser irradiation or insonated with an ultrasound pulse. The dynamics of PFCnDs can vary drastic