Results 131 to 140 of about 77,768 (302)

ASSGCN Model Based Vibration Signal Reconstruction in Motor Vibration Testing

IEEE Transactions on Industrial Electronics
For modern electric powertrain applications(wind, electric vehicles/ships/aircrafts,…), the vibrationanalysis of the electric motor is one of the most importanttasks. Normally, a large number of vibration sensors areplaced evenly around the stator of the prototype to sample the acceleration and vibration signals.
Wangjie Lang, Yihua Hu 0004, Quanfeng Li, Alexander Wireko-Brobby, Mohammed Alkahtani   +4 more
openaire   +2 more sources

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

Characterization of vibration transmission paths for gearbox condition monitoring

, 2010
For gearbox condition monitoring, the position of the accelerometers can be crucial for the detection of possible defects. However, little information can be found in the literature for engineers in setting up condition monitoring.
Ball, Andrew, Talbot, Chris J., Fengshou, Gu, Wang, T., Al-Arbi, S., Gu, F., Al-Arbi, Salem, Wang, Tie, Ball, A., Talbot, C.   +9 more
core  

Feature extraction of coal mine ventilator vibration signals based on improved variational mode decomposition

Gong-kuang zidonghua
The vibration signal of coal mine ventilator is a non-stationary multicomponent signal. Traditional methods for feature extraction of non-stationary signals suffer from poor adaptability and limited ability to identify weak characteristics of early ...
TAO Long, GUO Yanfei
doaj   +1 more source

Quantifying Subsurface Weak in‐Plane Magnetization of Mixed Phase BiFeO3 by Scanning Nitrogen Vacancy Magnetometry

Advanced Functional Materials, EarlyView.
We use scanning nitrogen vacancy magnetometry to directly image the weak in‐plane magnetic moments in mixed phase BiFeO3 at the nanoscale and quantify the local magnetic moments to be 18.8±2.0 μB/nm2 in the rhombohedral‐like phase and 1.5±0.6 μB/nm2 in the well‐known non‐magnetic tetragonal‐like phase.
Lei Wang, Zhewen Xu, Yuwen Xu, Björn Josteinsson, Simon Josephy, Dawei Zhang, Yunlong Sun, Heung‐Sik Park, Jihun Kim, Kanghyun Chu, Kyung Song, Danyang Wang, Chan‐Ho Yang, Andrea Morales, Jan Seidel   +14 more
wiley   +1 more source

Condition Monitoring of Gear Systems using Vibration Analysis

It is often impractical to measure vibrations directly at /or close to their sources when condition monitoring gearbox systems. It is common to measure the vibration distant from the source due to limited access to the component which is to be monitored.
Al-Arbi, Salem
core  

Prediction of Sleep Apnea Events Using a CNN-Transformer Network and Contactless Breathing Vibration Signals. [PDF]

Bioengineering (Basel), 2023
Chen Y, Yang S, Li H, Wang L, Wang B.
europepmc   +1 more source

Unraveling the Electronic Structure of Silicon Vacancy Centers in 4H‐SiC

Advanced Functional Materials, EarlyView.
The electronic structure of the silicon vacancy in 4H‐SiC is probed via transient absorption spectroscopy, uncovering previously inaccessible excited states of the quartet and doublet spin channels, including the V2' transition. In combination with theoretical analysis, a comprehensive picture of the electronic structure is established.
Ali Tayefeh Younesi, Minh Tuan Luu, Christopher Linderälv, Vytautas Žalandauskas, Marianne Etzelmüller Bathen, Nguyen Tien Son, Takeshi Ohshima, Gergő Thiering, Lukas Razinkovas, Ronald Ulbricht   +9 more
wiley   +1 more source

Chiral Phase Change Nanomaterials

Advanced Functional Materials, EarlyView.
This work demonstrates reversible, non‐volatile phase transitions in chiral Ge2${\rm Ge}_2$Sb2${\rm Sb}_2$Te5${\rm Te}_5$ (GST) nanohelices for high‐speed optical modulation of chirality and dynamic control of the state of polarization (SOP). The chiral nanostructures are fabricated using a highly directional, wafer‐scale physical vapor deposition ...
Joshua A. Burrow, Md Shah Alam, Riad Yahiaoui, Evan M. Smith, Ryan Laing, Jules Gardener, Thomas A. Searles, Piyush J. Shah, Shivashankar Vangala, Joshua R. Hendrickson, Andrew M. Sarangan, Imad Agha   +11 more
wiley   +1 more source

Identification of railway track damage using vibration signal characteristics

Pojazdy Szynowe
The study focuses on the identification of railway track damage using vibration signal characteristics. It presents the identification of vibration signals generated by the bogie system during passage over selected track sections in two different ...
Adrianna Łomżyńska, Klaudia Strugarek, Malwina Magdalena Nowak, Aleksander Władysław Ludwiczak, Mikołaj Jarosław Klekowicki, Grzegorz Marek Szymański   +5 more
doaj   +1 more source