Results 121 to 130 of about 100,664 (303)

Electromagnetic acoustic imaging methods: resolution, signal-to-noise, and image contrast in phantoms. [PDF]

J Med Imaging (Bellingham), 2021
Emerson JF, Chang DB, McNaughton S, Emerson EM, Cerwin SA.   +4 more
europepmc   +1 more source

Design of high frequency ultrasonic array transducers for medical imaging

, 2011
Ultrasonic transducers have been widely used in the medical applications. High frequency array transducers have recently attracted many research interests, since it provides not only the electronic beamforming but also the very fine image resolution. The
Qian, Yichen
core  

Benchmarking Coaxial and Angular Optical Emission Spectroscopy With Recommendations for Reliable Compositional In Situ Monitoring During Laser Powder Bed Fusion

Advanced Materials Technologies, EarlyView.
ABSTRACT Real‐time insight into local chemistry is critical for reliable part quality in additive manufacturing, especially laser powder bed fusion (PBF‑LB/M), where rapid thermal cycles and localized evaporation can undermine part performance. Optical emission spectroscopy (OES) offers non‑intrusive, in situ plume monitoring, but detection geometry ...
Philipp Gabriel, Bastian Jülich, Anna Rosa Ziefuss, Florian Eibl, Stephan Barcikowski   +4 more
wiley   +1 more source

High-Frequency Acoustic Imaging Using Adhesive-Free Polymer Transducer. [PDF]

Polymers (Basel), 2021
Ranjan A, Peng C, Wagle S, Melandsø F, Habib A.   +4 more
europepmc   +1 more source

Recent Advances of Slip Sensors for Smart Robotics

Advanced Materials Technologies, EarlyView.
This review summarizes recent progress in robotic slip sensors across mechanical, electrical, thermal, optical, magnetic, and acoustic mechanisms, offering a comprehensive reference for the selection of slip sensors in robotic applications. In addition, current challenges and emerging trends are identified to advance the development of robust, adaptive,
Xingyu Zhang, Liao Wu, Shuai He, Zhao Sha, Yuwan Huang, Shuying Wu, Dewei Chu, Chun H. Wang, Shuhua Peng   +8 more
wiley   +1 more source

Investigations into the use of quantified Bayesian Maximum Entropy methods to generate improved distribution maps and biomass estimates from fisheries acoustic survey data

, 2008
This thesis describes elements of the assessment and application of Bayesian Maximum Entropy (MaxEnt) image reconstruction techniques for the analysis of fisheries acoustic survey data.
Heywood, Ben G.
core  

Hierarchical Multi‐Material Architectures With Gradient Design for Dynamic‐Range Flexible Tactile Sensing

Advanced Materials Technologies, EarlyView.
Hierarchical multi‐material TPMS lattices are engineered as flexible tactile sensors by combining soft and stiff elastomeric layers with a conformal conductive coating. The bilayer architecture delivers sensitivity at low pressures while maintaining a broad detectable range under large loads, enabling reliable pressure and vibration monitoring for ...
Reza Noroozi, Domenic Quiquero, Yan Yan Shery Huang, HaoTian Harvey Shi   +3 more
wiley   +1 more source

High-resolution acoustic imaging method based on equivalent source method and reweighted minimization

Measurement + Control
Sparse regularization has been successfully applied to equivalent source method (ESM) in order to improve the acoustic imaging resolution. However, the application is not always feasible, especially at low frequencies. To overcome the problem, this paper
Yuan Liu, Wenqiang Liu, Yongchang Li, Dingyu Hu, Wenqian Jing   +4 more
doaj   +1 more source

A study of blood clots using photoacoustic imaging during sonothrombolysis

, 2019
Formation of blood clots or thrombus in healthy blood vessels can lead to serious or even life-threatening complications. Sonothrombolysis is a promising tool for lysing the blood clots non-invasively using focused acoustic waves. Ultrasound (US) imaging
Pramanik, Manojit, Das, Dhiman
core   +1 more source

Magnetic Droplet Manipulation on Open Surfaces

Advanced Materials Technologies, EarlyView.
Recent advances in the manipulation of magnetic droplets demonstrate various manipulations on open surfaces, including transport, splitting, merging, and force‐controlled motion, enabled by magnetic particles and external fields. ABSTRACT Manipulation of liquids on a smaller scale enables applications in various fields, particularly diagnostics and ...
Robab Jahangir, Vahid Nasirimarekani
wiley   +1 more source