Results 91 to 100 of about 63,428 (281)

Wide-Field High-Speed Scanning Acoustic/Photoacoustic Microscopy for Whole-Body Imaging of Small Animals

Biosensors
Photoacoustic (PA) imaging combines optical contrast with ultrasound (US) detection, enabling high-resolution imaging of biological tissues with greater penetration depth than conventional optical techniques.
Joongho Ahn, Hyoseok Choi, Seongjun Lim, Jin Young Kim, Jeongwoo Park   +4 more
doaj   +1 more source

Voltage and temperature dependencies of conductivity in gated graphene

, 2007
The resistivity of gated graphene is studied taking into account electron and hole scattering by short- and long-range structural imperfections the characteristics of disorder were taken from the scanning tunneling microscopy data and by acoustic phonons.
E. M. Lifshitz, F. T. Vasko, F. T. Vasko, H. Weyl, J. M. Ziman, K. S. Novoselov, M. I. Katsnelson, R. Saito, V. Ryzhii   +8 more
core   +1 more source

Strain‐Driven Surface Reconstruction During the Alkaline Oxygen Evolution Reaction: a Model Thin‐Film Study

Advanced Materials, EarlyView.
ABSTRACT Dynamic surface reconstruction critically governs the performance and durability of oxide‐based electrocatalysts for the oxygen evolution reaction (OER), yet controlling this process under operating conditions remains challenging. Here, we demonstrate that lattice strain regulates the extent of surface reconstruction in perovskite oxides by ...
Yong Beom Kim, Jeong Jin Lee, Jeongah Lee, Yeongtaek Hong, San Kwak, WooChul Jung   +5 more
wiley   +1 more source

An acoustic teaching model illustrating the principles of dynamic mode magnetic force microscopy

Nanotechnology Reviews, 2017
Magnetic force microscopy (MFM) represents a versatile technique within the manifold methods of scanning probe microscopy (SPM), focusing on the investigation of magnetic phenomena at the nanoscale.
Reimer Mario, Niemeier Sybille, Laumann Daniel, Denz Cornelia, Heusler Stefan   +4 more
doaj   +1 more source

High‐Performance Transparent, Deformable, and Recoverable Biomimetic Stevia–PVA Hydrogel Triboelectric Nanogenerator with Machine Learning‐Assisted Motion Recognition

Advanced Materials, EarlyView.
A transparent, deformable stevia–PVA hydrogel triboelectric nanogenerator delivers significantly enhanced mechanical strength and electrical output through biomimetic hydrogen‐bonded networks. Coupled with machine learning–assisted signal recognition, the self‐powered hydrogel enables accurate human‐motion sensing for intelligent wearable and IoT ...
Thien Trung Luu, Bui Minh Quang, Toan Minh Pham, Jinsoo Kim, Kyungwho Choi, Dukhyun Choi   +5 more
wiley   +1 more source

High-resolution imaging in acoustic microscopy using deep learning

Machine Learning: Science and Technology
Acoustic microscopy is a cutting-edge label-free imaging technology that allows us to see the surface and interior structure of industrial and biological materials. The acoustic image is created by focusing high-frequency acoustic waves on the object and
Pragyan Banerjee, Shivam Milind Akarte, Prakhar Kumar, Muhammad Shamsuzzaman, Ankit Butola, Krishna Agarwal, Dilip K Prasad, Frank Melandsø, Anowarul Habib   +8 more
doaj   +1 more source

Application of scanning acoustic microscopy for evaluation of MMP activation in multiple cancer cell lines with a smart probe. [PDF]

Turk J Biol, 2023
Otaş HO, Uluç N, Demirkan İ, Alkan A, Yilmazer A, Yaşa S, Khalafkhany D, Özören N, Ünlü MB.   +8 more
europepmc   +1 more source

Reliability of void detection in structural ceramics using scanning laser acoustic microscopy [PDF]

The reliability of scanning laser acoustic microscopy (SLAM) for detecting surface voids in structural ceramic test specimens was statistically evaluated. Specimens of sintered silicon nitride and sintered silicon carbide, seeded with surface voids, were
Baaklini, G. Y., Kiser, J. D., Klima, S. J., Roth, D. J.   +3 more
core   +1 more source

Direct Observation of Propagating Gigahertz Coherent Guided Acoustic Phonons in Free Standing Single Copper Nanowires

, 2014
We report on gigahertz acoustic phonon waveguiding in free-standing single copper nanowires studied by femtosecond transient reflectivity measurements.
Amziane A., Bannov N., Belliard L., Bernard Perrin, Bienville T., Boukai A. I., Burgin J., Cardinal M. F., Chang D. E., Chree C., Cyril Jean, Feng X. L., Hirsch L. R., Huang X., Jais P. M., Juvé V., Kelf T. A., Khelfa H., Laurent Belliard, Ledbetter H., Liang H., Lin K.-H., Loïc Becerra, Maier S. A., Major T. A., Major T. A., Mante P.-A., Marco Cassinelli, Maria Eugenia Toimil-Molares, Mingo N., Molares M. T., Mounier D., Novo C., Olivier Thomas, Pochhammer L., Ristow O., Royer D., Silk M., Siry P., Staleva H., Staleva H., Staleva H., Thomas W. Cornelius, Thomsen C., van Dijk M., Vertikov A., Zijlstra P.   +46 more
core   +2 more sources

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