Results 61 to 70 of about 8,993,179 (354)

Graphic presentation of information of acoustic monitoring of stream grinding process

Nauka ta progres transportu, 2012
The theoretical and experimental mechanisms of thin grinding the loose materials are analyzed. The relation of the density function of acoustic signal amplitudes of grinding process to the degree of loading the jets by material is established.
N.S. Pryadko, T.M. Bulanaya, K.V. Shegeda   +2 more
doaj  

Emergent Topological Magnons and Thermal Hall Effect in 2D Filling‐Enforced Fully Compensated Ferrimagnets

Advanced Functional Materials, EarlyView.
Schematic illustration of ferroelectric‐intercalation‐driven transitions in magnetic configurations and magnonic topological phases, together with the symmetry relations of magnonic Berry curvature. ABSTRACT Magnons in collinear magnets with vanishing net magnetization offer unique advantages for spin transport, including ultrafast dynamics and ...
Yingxi Bai, Bo Yuan, Zhenzhou Guo, Jian Zhang, Ying Dai, Baibiao Huang, Xiaotian Wang, Chengwang Niu, Gang Zhang   +8 more
wiley   +1 more source

Effects of Natural Fractures on Coal Drilling Response: Implications for CBM Fracturing Optimization

Energies
The efficiency of coalbed methane (CBM) extraction is closely related to the drilling response of coal seams, which is significantly influenced by natural fracture development of coal seams. This work investigated 11 coal samples from the Baode, Xinyuan,
Zixiang Han, Shuaifeng Lyu, Yuhang Xiao, Haijun Zhang, Quanming Chen, Ao Lu   +5 more
doaj   +1 more source

Transcranial Acoustic Metamaterial Parameters Inverse Designed by Neural Networks

BME Frontiers, 2023
Objective: The objective of this work is to investigate the mapping relationship between transcranial ultrasound image quality and transcranial acoustic metamaterial parameters using inverse design methods.
Yuming Yang, Dong Jiang, Qiongwen Zhang, Xiaoxia Le, Tao Chen, Huilong Duan, Yinfei Zheng   +6 more
doaj   +1 more source

Unlocking Multi‐Valley Energy Pockets and Interface‐Induced Phonon Filtering in InSb Thermoelectrics by Reaction‐Driven Interface Engineering

Advanced Functional Materials, EarlyView.
InSb, a narrow‐bandgap semiconductor with high carrier mobility, is promising for thermoelectric energy conversion but suffers from high lattice thermal conductivity and strong bipolar conduction. Here, in situ interface engineering using Co2O3 nanoprecursors forms hierarchical CoSbx/In2O3/CoSb3 heterostructures that enhance phonon scattering and ...
Jiwu Xin, Xiao Yang, Xiao‐Lei Shi, Chengyun Xu, Xi Ling, Pengyu Zhang, Jinfeng Dong, Yong Du, Haisheng Chen, Ting Zhang, Zhi‐Gang Chen   +10 more
wiley   +1 more source

Handclap for Acoustic Measurements: Optimal Application and Limitations

Acoustics, 2020
Handclap is a convenient and useful acoustic source. This study aimed to explore its optimal application and limitations for acoustic measurements as well for other possible utilizations.
Nikolaos M. Papadakis, Georgios E. Stavroulakis   +1 more
doaj   +1 more source

A Non‐Reciprocal Architected Porous Medium

Advanced Functional Materials, EarlyView.
ABSTRACT In several fluid flow, energy‐dumping, and energy‐harvesting applications, a dominant flow direction or dominant resistance direction is desirable. In this study, we propose a simple modular geometry that doubles flow resistance in one direction relative to the opposite direction, while maintaining laminar viscous flow.
Clément Vezies, Pablo Zavattieri, Nicolás Silin   +2 more
wiley   +1 more source

Ultrasensitive Anti‐Stokes Luminescence Thermometry in Transition Metal Dichalcogenide Monolayers

Advanced Functional Materials, EarlyView.
We demonstrate a highly sensitive nanothermometer using anti‐Stokes photoluminescence, also known as photoluminescence upconversion (UPL), in monolayer tungsten disulfide. A strong resonantly enhanced UPL is observed, confirming the central role of optical phonons in the PL upconversion mechanism.
Sharada Nagarkar, Fahrettin Sarcan, Elanur Hut, Emiliano R. Martins, Stuart A. Cavill, Thomas F. Krauss, Yue Wang   +6 more
wiley   +1 more source

OPTIMIZATION OF THE ELECTRO-ACOUSTIC SPUTTERING PROCESS BY THE MICROHARDNESS CRITERION

Advanced Engineering Research, 2010
Influence of acoustic parameters (amplitude of ultrasonic oscillations A (mcm), frequency of ultrasonic oscillations (Khz), and a corner between the axis of the wave guide and the vector direction of longitudinal-twisting oscillations (degrees)) process ...
D.N. MALEYEV, W.H. AL-TIBBI, D.A. CHILIKIN   +2 more
doaj  

Detection and Analysis of Abnormal High-Current Discharge of Cylindrical Lithium-Ion Battery Based on Acoustic Characteristics Research

World Electric Vehicle Journal
The improvement of battery management systems (BMSs) requires the incorporation of advanced battery status detection technologies to facilitate early warnings of abnormal conditions.
Nan Zhou, Kunbai Wang, Xiang Shi, Zeyu Chen   +3 more
doaj   +1 more source