Results 121 to 130 of about 260,156 (333)

Analysis of Ultrasonic Wave Dispersion in Presence of Attenuation and Second-Gradient Contributions

CivilEng
In this study, we aim to analyze the dispersion of ultrasonic waves due to second-gradient contributions and attenuation within the framework of continuum mechanics. To investigate dispersive behavior and attenuation effects, we consider the influence of
Nicola De Fazio, Luca Placidi, Francesco Fabbrocino, Raimondo Luciano   +3 more
doaj   +1 more source

Orbital Geometry‐Governed Response of Pressure‐Tunable Quantum Defects in hBN

Advanced Functional Materials, EarlyView.
Defects in hBN act as ultrasensitive quantum manometers when the energy of the intradefect optical transitions is modified by lattice compression. The orbital geometry of the electron wave functions governs how electron hopping and Coulomb interactions react uniquely to the reduction of the van der Waals gap and in‐plane compression, leading to robust ...
Magdalena Grzeszczyk, Danis I. Badrtdinov, Kenji Watanabe, Takashi Taniguchi, Cyrus E. Dreyer, Malte Rösner, Maciej Koperski   +6 more
wiley   +1 more source

The Peano-series solution for modeling shear horizontal waves in piezoelectric plates

EPJ Web of Conferences, 2012
The shear horizontal (SH) wave devices have been widely used in electroacoustic. To improve their performance, the phase velocity dispersion and the electromechanical coupling coefficient of the Lamb wave should be calculated exactly in the design ...
Ben Ghozlen M.H., Njeh A., Ben Salah I.
doaj   +1 more source

Torsional wave dispersion in a finitely pre-strained hollow sandwich circular cylinder

, 2011
This paper studies torsional wave dispersion in a three-layered (sandwich) hollow cylinder with finite initial strains. The investigations are carried out within the scope of the piecewise homogeneous body model with the use of the three-dimensional ...
KEPCELER, Tamer, S.D. Akbarov, EGILMEZ, M. Mert, AKBAROV, SURKHAY, M. Mert Egilmez, T. Kepceler   +5 more
core   +1 more source

Titanium Suboxides Responsible for Electronic Anomaly Near Room Temperature in the Ti3C2Tx MXene

Advanced Functional Materials, EarlyView.
Our multi‐technique study reveals that the near‐room‐temperature anomaly in Ti3C2Tx MXene is linked to titanium suboxide nanodomains, including Ti3O5, embedded within the MXene host. Their temperature‐driven transformation provides an alternative explanation to solvent‐ and swelling‐based models and offers new insight into the thermally activated ...
Bence G. Márkus, Bradlee J. McIntosh, Lili Vajtai, Anna Nyáry, Sándor H. Sipos, Nirmal J. Ghimire, Ferenc Simon, László Forró, Dávid Beke   +8 more
wiley   +1 more source

Analytical wave solutions in thermoelastic media with temperature-dependent properties via IMETF method

Scientific Reports
This study delivers an in-depth analytical investigation of exact wave solutions derived within the context of the Three-Phase-Lag (3PHL) generalized thermoelasticity model, explicitly incorporating the temperature dependence of material properties.
Mohamed F. Ismail, Hamdy M. Ahmed, Soha Safwat, M. Elsaid Ramadan, Nesreen Sirelkhtam Elmki Abdalla, Mahmoud Soliman   +5 more
doaj   +1 more source

Prediction of temperature dependent wave dispersion and interaction properties in composite structures [PDF]

, 2017
Composite structures are widely used for aerospace and automotive applications. These operate within a broad temperature range varying between -100_C to 200_C for launch vehicles and -60_C to +50_C for aircraft and automotive vehicles.
Essa, Y., Chronopoulos, D., Ampatzidis, T., Ichchou, M., Apalowo, R.K., De La Escalera, F.M.   +5 more
core  

Electrode and Microstructure Dependence of Oxygen Diffusion in Ferroelectric Hafnium Zirconium Oxide Thin Films

Advanced Functional Materials, EarlyView.
Significant nanoscale oxygen diffusion coefficient variations are measured in ferroelectric hafnium zirconium oxide films with grain boundaries and electrode interfaces exhibiting values 104 times larger than the grain cores. Overall coefficients are 10X larger for films prepared with metal nitride electrodes compared to refractory metals. New insights
Liron Shvilberg, Thomas W. Pfeifer, Chuanzhen Zhou, Yong Kyu Choi, Duk‐Hyun Choe, Patrick E. Hopkins, Jon F. Ihlefeld   +6 more
wiley   +1 more source

Integration of image and dipole sonic logs for identification of natural fractures and stress-induced anisotropy in Asmari reservoir (A case study, SW Iran)

Rock Mechanics Bulletin
Borehole sonic dispersion analysis is a technique that provides valuable insights into the realm of borehole sonic interpretation. This research involves an analysis of shear-wave anisotropy and ultrasonic image logs to differentiate between types of ...
Maziar Torkaman, Soheila Bagheri, Mahdi Rastegarnia   +2 more
doaj   +1 more source

The Ni,Cd Heteroatoms‐Initiated Synergistic Tuning of Electron Configuration in Fe2VO4 Nanosheets Electrocatalysts to Profoundly Stabilize Alkaline Seawater Electrolysis

Advanced Functional Materials, EarlyView.
A Ni,Cd‐codoped Fe2VO4/NF bifunctional electrocatalyst is rationally designed for efficient seawater electrolysis. Synergistic effect modulates electron configuration, optimizes intermediates adsorption, stabilizes high‐valence Fe/V sites, and repels chloride ions to suppress corrosion and side reactions, thus contributing to performance improvement of
Weiguo Huang, Bin Fang, Tao Meng, Xiaodong Chen, Ya Chen, Xin Gao, Fei Liang, Hongchao Sun, Jiangmin Zou, Chao Yuan, Yuanyuan Shao, Peiyi Ji, Yangang Wang, Lifeng Cui, Guoxiu Wang, Duu‐Jong Lee   +15 more
wiley   +1 more source