Results 191 to 200 of about 354,663 (307)

A Novel Feature Extraction Method for Power Transformer Vibration Signal Based on CEEMDAN and Multi-Scale Dispersion Entropy. [PDF]

Entropy (Basel), 2021
Shang H, Xu J, Li Y, Lin W, Wang J.
europepmc   +1 more source

Slight Truncation Changes in Iron Oxide Nanocubes Strongly Affect Their Magnetic Properties

Advanced Functional Materials, EarlyView.
Subtle variations in nanoparticle morphology can lead to significant changes in functional properties. An automated shape‐fitting method captures minor differences in corner truncation between iron oxide nanocubes of similar sizes synthesized under identical conditions, revealing pronounced disparities in their magnetic and hyperthermia behavior ...
Kingsley Poon, Raúl López‐Martín, Verner Håkonsen, Nader Yaacoub, Francisco J. Terán, Alberto López Ortega, Jose A. De Toro, Gurvinder Singh   +7 more
wiley   +1 more source

Research on the diagnosis method of abnormal faults in the drum brake device of the tobacco production line belt conveyor

Jixie chuandong
ObjectiveThe vibration signal of the drum brake device may contain multiple frequency components, which may overlap with each other, making it difficult to separate the fault characteristics from the background noise.
GUI Tengyue, SHAO Jianming, WAN Zhonghai, ZHANG Zhiming, WU Jiansheng, ZHANG Kuangshi   +5 more
doaj  

Integrating vibration signal analysis and image embedding for enhanced bearing fault diagnosis in manufacturing. [PDF]

Sci Rep
Kim Y, Yoon H.
europepmc   +1 more source

Nanoscale Mapping of Plasmonic Charge Transport in Nano‐Resonators Based on Resistive Switching Materials

Advanced Functional Materials, EarlyView.
In this strategy, a conductive nano‐probe is employed to induce nanoscale phase transitions and map the nanoscale conductivity and trap density of GST films. By utilizing the contrasting properties of phase‐change states, nano‐resonators are fabricated that exhibit plasmonic conduction and dramatically different transport characteristics.
Sunwoo Bang, Seunghyo Park, Shashank Shekhar, Yuhyeon Oh, Seunghun Hong   +4 more
wiley   +1 more source

Compressed Sensing of Vibration Signal for Fault Diagnosis of Bearings, Gears, and Propellers Under Speed Variation Conditions. [PDF]

Sensors (Basel)
Kato Y, Otaka M.
europepmc   +1 more source

From Single Atoms to Nanoparticles: Pathways Toward Efficient and Durable Pt/TiO2 Photocatalysts

Advanced Functional Materials, EarlyView.
Platinum single atoms on TiO2 nanosheets evolve into clusters and nanoparticles under ethanol photoreforming and thermal treatments. By controlling deposition and post‐treatments, particle size and location on specific facets are modulated. The study reveals how stability pathways determine efficiency, guiding the design of more durable photocatalysts.
Juan José Delgado, Enqi Bu, Yaning Han, Carlos López‐Cartes, Mónica Calatayud, Huiyan Pan, Xiaowei Chen   +6 more
wiley   +1 more source

A Vibration Signal-Based Active Noise Control Method for Liquid-Filled Pipelines. [PDF]

Sensors (Basel)
Wang Y, Liu Q, Yu W, Cheng G.
europepmc   +1 more source

Tuning the Selectivity of the CO2 Reduction Reaction by Means of Synergistic Interactions in the Cu, Ag, Ce System

Advanced Functional Materials, EarlyView.
Multi‐metal Cu─Ce─Ag nanoparticles harness synergistic interactions to drive efficient electrochemical CO2 reduction reaction toward C2+ products at high current densities. Ag enhances CO production, Ce modulates Cu oxidation states, and together they boost *CO coverage and local pH to enhance C─C coupling, enabling record C2+ yields with suppressed ...
Nini Zhang, Muhammad Adib Abdillah Mahbub, Bashir Eid, Thomas Quast, Jian Zhang, Ridha Zerdoumi, Xin Wang, Sabine Seisel, Wangcheng Zhan, Wolfgang Schuhmann   +9 more
wiley   +1 more source

Vibration signal analysis for rolling bearings faults diagnosis based on deep-shallow features fusion. [PDF]

Sci Rep
Chennana A, Megherbi AC, Bessous N, Sbaa S, Teta A, Belabbaci EO, Rabehi A, Guermoui M, Agajie TF.   +8 more
europepmc   +1 more source