Results 201 to 210 of about 2,948 (261)

Closing the Loop: High‐Precision 3D Photofabrication in Living Tissues

Advanced Science, EarlyView.
Writing 3D microstructures inside living tissue demands more than laser access; It demands information. Hierarchical sensing captures thermal and mechanical states across pulse‐train, voxel, and structure timescales, feeding a controller that steers the laser in real time.
Amirbahador Zeynali, Mangirdas Malinauskas, Giuseppe Chirico   +2 more
wiley   +1 more source

3D Large-Scale Subwavelength-Resolution Sound Sheet Tomography Based on an Active and Programmable Circular Meta-Array. [PDF]

Adv Sci (Weinh)
Zhang QD, Lin ZB, Chen Z, Liu ZH, He JL, Song JJ, Zeng LS, Zhou L, Ding MY, Peng YG, Yuchi M, Zhu XF.   +11 more
europepmc   +1 more source

Anode‐Free Sodium Metal Batteries: From Materials Design to System‐Level Integration

Advanced Science, EarlyView.
Anode‐free sodium metal batteries hold no sodium reserve, so every inefficiency becomes permanent loss. Resolving the inventory into reversible, dead, and chemically bound fractions exposes what Coulombic efficiency hides. Practical 500‐cycle operation requires above 99.95%, a threshold few systems meet under lean electrolyte and high areal capacity ...
Hamid Hussain, Shazaib Ali, Muhammad Ali, Samia Aman, Moazzam Ali, Ufra Naseer, Sajid Farooq, Asif Mahmood, Sailing He, Yinzhu Jiang, Muhammad Yousaf   +10 more
wiley   +1 more source

Dual-domain metamaterials co-integrated with a compact ultrasonic transducer for highly directional audio generation. [PDF]

Nat Commun
Kim W, Oh B, Moon W, Rho J.
europepmc   +1 more source

Active time-reversal based phased array ultrasound system for accurate focusing through biological tissue layers. [PDF]

Discov Nano
Xu H, Yang S, Lai Q, Gao X, Chen W, He X.   +5 more
europepmc   +1 more source

Advances and Challenges of Capacitive Micromachined Ultrasonic Transducers in Medical Imaging. [PDF]

Micromachines (Basel)
Yu Y, Liu X, Wang J, Zhang S.
europepmc   +1 more source

Research on Piezoelectric Guided Wave Frequency Diverse Array-Based Damage Location Method for Thin-Walled Structures. [PDF]

Micromachines (Basel)
Wang C, Hu Q, Zhong Y.
europepmc   +1 more source

Ultrasound Patches Toward Intelligent Theranostics: From Flexible Materials to Closed-Loop Biomedical Systems. [PDF]

Bioengineering (Basel)
Zhao J, Huang Y, Zhang Y, Xie Y, Guo W, Li Y, Wang S.   +6 more
europepmc   +1 more source

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Ultrasonic phased array systems

The Journal of the Acoustical Society of America, 1980
Ultrasonic phased array method and apparatus for the static or dynamic investigation of structures, such as organs of the body, or intra-uterine detail, wherein ultrasonic echo pulses, reflected back from a testpiece to one or a group of adjacent transducers of a linear transducer array, are converted to corresponding electric signals which are then ...
James M. S. Hutchison, Robert D. Selbie
openaire   +1 more source