Results 71 to 80 of about 127,255 (282)

The frequency-dependent directivity of a planar Fabry-Perot polymer film ultrasound sensor [PDF]

, 2007
A model of the frequency-dependent directivity of a planar, optically-addressed, Fabry-Perot (FP), polymer film ultrasound sensor is described and validated against experimental directivity measurements made over a frequency range of 1 to 15 MHz and ...
Beard, PC, Cox, BT
core   +1 more source

An Inkjet‐Printed Platinum‐Based Temperature Sensing Element on Polyimide Substrates

Advanced Engineering Materials, EarlyView.
An inkjet‐printed, meander‐structured, nanoparticle platinum‐based resistive temperature sensors on polyimide substrates are demonstrated as proof‐of‐concept. Optimized sintering at 250°C enables stable conductive structures. The Pt100‐ and Pt1000‐type sensors exhibit linear resistance–temperature characteristics with stable TCR in the 20°C–80°C range,
Shawon Alam, Thomas Kister, Alexander Scholz, Sophie Sauva, Makara Lay, Tobias Kraus, Jasmin Aghassi‐Hagmann   +6 more
wiley   +1 more source

Three-layer model with absorption for conservative estimation of the maximum acoustic transmission coefficient through the human skull for transcranial ultrasound stimulation

Brain Stimulation, 2023
Transcranial ultrasound stimulation (TUS) has been shown to be a safe and effective technique for non-invasive superficial and deep brain stimulation.
David Attali, Thomas Tiennot, Mark Schafer, Elsa Fouragnan, Jérôme Sallet, Charles F Caskey, Robert Chen, Ghazaleh Darmani, Ellen J. Bubrick, Christopher Butler, Charlotte J Stagg, Miriam Klein-Flügge, Lennart Verhagen, Seung-Schik Yoo, Kim Butts Pauly, Jean-Francois Aubry   +15 more
doaj   +1 more source

Theoretical investigation of transgastric and intraductal approaches for ultrasound-based thermal therapy of the pancreas. [PDF]

, 2017
BackgroundThe goal of this study was to theoretically investigate the feasibility of intraductal and transgastric approaches to ultrasound-based thermal therapy of pancreatic tumors, and to evaluate possible treatment strategies.MethodsThis study ...
Adams, Matthew S, Diederich, Chris J, Salgaonkar, Vasant, Scott, Serena J, Sommer, F Graham   +4 more
core   +1 more source

Numerical Investigation of a Dual‐Mode Shape Memory Alloy Stent Enabling Secondary Expansion via Focused Ultrasound: A Potential Strategy for Correcting In‐Stent Restenosis

Advanced Engineering Materials, EarlyView.
This study demonstrates a novel noninvasive strategy to treat in‐stent restenosis using focused ultrasound. A shape memory alloy stent initially expands at body temperature. If restenosis occurs, targeted ultrasound heating thermally actuates the stent, enabling a secondary expansion to reopen the blocked vessel, offering a potential alternative to ...
Stephen Asare, Lucinda Duncan, Josiah Owusu‐Danquah, Brian L. Davis   +3 more
wiley   +1 more source

Low Intensity Focused Ultrasound Ignited “Deep-Penetration Nanobomb” (DPNB) for Tetramodal Imaging Guided Hypoxia-Tolerant Sonodynamic Therapy Against Hypoxic Tumors

International Journal of Nanomedicine, 2022
Yuanli Luo1 *, Bin Qiao1 *, Chao Yang2 *, Ping Zhang,1 Zhuoyan Xie,1 Jin Cao,1 Anyu Yang,1 Qinyanqiu Xiang,1 Haitao Ran,1 Zhigang Wang,1 Lan Hao,1 Yang Cao,1 Zhiyi Zhou,3 Jianli Ren1 1Chongqing Key Laboratory of Ultrasound Molecular Imaging ...
Luo Y, Qiao B, Yang C, Zhang P, Xie Z, Cao J, Yang A, Xiang Q, Ran H, Wang Z, Hao L, Cao Y, Zhou Z, Ren J   +13 more
doaj  

A Review on Brain Stimulation Using Low Intensity Focused Ultrasound.

Basic and clinical neuroscience, 2016
Brain stimulation techniques are important in both basic and clinical studies. Majority of well-known brain stimulating techniques have low spatial resolution or entail invasive processes. Low intensity focused ultrasound (LIFU) seems to be a proper candidate for dealing with such deficiencies.
Rezayat, Ehsan, Toostani, Iman Ghodrati
openaire   +2 more sources

Ultrasound IMT measurement on a multi-ethnic and multi-institutional database: Our review and experience using four fully automated and one semi-automated methods [PDF]

, 2012
Automated and high performance carotid intima-media thickness (IMT) measurement is gaining increasing importance in clinical practice to assess the cardiovascular risk of patients. In this paper, we compare four fully automated IMT measurement techniques
Andrew Nicolaides, Anil, T., Guang Zeng, Jasjit, S., Kristen, M., Ledda, Giuseppe, Molinari, Filippo, Rajendra Acharya, U., Saba, Luca, Sin Yee Stella Ho, Suzanne, C.   +10 more
core   +1 more source

Compressible Flow Exfoliation of Two‐Dimensional Nanomaterials: Insights Into Layer Separation Informed by Gas Dynamics

Advanced Engineering Materials, EarlyView.
This study elucidates the mechanism of compressible flow exfoliation for producing 2D hexagonal boron nitride (h‐BN). Fluid dynamics analysis reveals that acceleration‐driven aerodynamic shear forces, rather than shock waves alone, drive effective layer separation.
Md Farhadul Islam, Saeed Arabha, Ray Hixon, Reza Rizvi   +3 more
wiley   +1 more source

Phase-Shift, Targeted Nanoparticles for Ultrasound Molecular Imaging by Low Intensity Focused Ultrasound Irradiation [Corrigendum]

International Journal of Nanomedicine, 2020
Li M, Luo H, Zhang W, et al. Int J Nanomedicine. 2018;13:3907–3920. The authors have advised that they covered up some larger-sized particles and impurities to enhance the aesthetic of the image shown for Figure 4A, on page 3913 ...
Li M, Luo H, Zhang W, He K, Chen Y, Liu J, Chen J, Wang D, Hao L, Ran H, Zheng Y, Wang Z, Li P   +12 more
doaj