Results 111 to 120 of about 239,856 (276)

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

Decoding THz‐Driven Dynamic Fingerprints of Ferroelectric Nanotwin Networks

Advanced Materials, EarlyView.
ABSTRACT Ultrafast polarization dynamics in ferroelectrics are of considerable interest for high‐speed tunable dielectrics and electro‐optics. Extended domain wall networks formed in ferroelectric twin nanodomains can support collective dynamics in the terahertz regime but require techniques that track polarization and strain evolution driven by ...
Xiaojiang Li, Aiden Ross, Vladimir A. Stoica, Sujit Das, Sankalpa Hazra, Huaiyu (Hugo) Wang, Hari Padma, Matthias C. Hoffmann, Patrick Kramer, Sanghoon Song, Silke Nelson, Takahiro Sato, Diling Zhu, Ramamoorthy Ramesh, Lane W. Martin, Yue Cao, John W. Freeland, Aaron M. Lindenberg, Haidan Wen, Long‐Qing Chen, Venkatraman Gopalan   +20 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

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

Investigation of Structural, Mechanical and Electrochemical Properties of Temperature‐Dependent Dual AlN/TiAlN Coating Synthesized by CVD Process

Advanced Materials Interfaces, EarlyView.
This study investigates thermally CVD‐deposited AlN/TiAlN dual‐layer coatings over a Si substrate, focusing on the temperature‐dependent process‐structure relationship. Systematic characterization reveals that a dense AlN interlayer combined with an optimally deposited TiAlN top layer provides enhancement in mechanical strength, tribological stability,
Soham Das, Abhishek Kundu, Debjyoti Sahu, Nikhil Kumar, Spandan Guha   +4 more
wiley   +1 more source

Wafer‐Scale Single‐Crystal Boron Nitride: Synthesis and Integration in 2D Electronics

Advanced Materials Interfaces, EarlyView.
This Review highlights recent breakthroughs in wafer‐scale hBN synthesis and its integration into next‐generation 2D electronics. We analyze growth kinetics, epitaxial strategies, and stacking‐sequence control while correlating material quality with device performance.
Jaewon Wang, Soon‐Yong Kwon
wiley   +1 more source

A simulation study of ionizing radiation acoustic imaging (iRAI) as a real-time dosimetric technique for ultra-high dose rate radiotherapy (UHDR-RT). [PDF]

Med Phys, 2021
Ba Sunbul NH, Zhang W, Oraiqat I, Litzenberg DW, Lam KL, Cuneo K, Moran JM, Carson PL, Wang X, Clarke SD, Matuszak MM, Pozzi SA, El Naqa I.   +12 more
europepmc   +1 more source

Direct Mode‐Resolved Measurement of Interfacial Phonon Transport by Acoustic Phonon Reflectometry

Advanced Materials Interfaces, EarlyView.
We introduce a novel analysis, acoustic phonon reflectometry, that measures the mode‐resolved phonon reflection coefficient at semiconductor interfaces. In aluminum nitride, we observe excellent agreement with the acoustic mismatch model across three distinct interfaces.
Christopher Hennighausen, Gustavo A. Alvarez, Jeffrey Z. Kaaret, Patrick Soucy, Amir F. Amhaz, Jeffrey Moses, Kenneth R. Beyerlein, Nicole A. Benedek, Zhiting Tian, Ankit S. Disa   +9 more
wiley   +1 more source

Hybrid Magnetoactive Soft Elastomers: Material Development Toward Application in Diaphragm Pumps

Advanced Materials Technologies, EarlyView.
Hybrid magnetoactive soft elastomeric membranes are developed by combining two different types of magnetic particles. The membranes exhibit distinct mechanical, magnetic and thermal properties owing to the unique characteristics of the two magnetic particles.
Somashree Mondal, Paweł Orkisz, Bogdan Sapiński, Ralph Spolenak, Frank Clemens   +4 more
wiley   +1 more source

A method for interpretating acoustic reflection imaging logging data of fractured-vuggy reservoirs based on their theoretical response characteristics

Meitian dizhi yu kantan
ObjectiveDuring the exploration and development of fractured-vuggy carbonate reservoirs, acoustic reflection imaging logging technology enables the detection of fractured-vuggy bodies around wells.
Ruokun HUANG, Kai JIANG, Xingneng WU, Kunyu MA, Yuanda SU, Bing WANG, Xu CHEN   +6 more
doaj   +1 more source