Results 101 to 110 of about 13,912 (266)

One-step quartz-MEMS micro-fabrication strategy for a grooved tuning fork

Nanotechnology and Precision Engineering
Grooved tuning forks with hierarchical structures have become some of the most widely used piezoelectric quartz microelectromechanical system devices; however, fabricating these devices requires multi-step processes due to the complexity of etching of ...
Yide Dong, Chunyan Yin, Guangbin Dou, Litao Sun   +3 more
doaj   +1 more source

Design Optimization of a Compact Double-Ended-Tuning-Fork-Based Resonant Accelerometer for Smart Spindle Applications

Micromachines, 2019
With the rapid developments of the Industrial Era 4.0, numerous sensors have been employed to facilitate and monitor the quality of machining processes.
Yu-Hsuan Chen, Wei-Chang Li, Xi-Wen Xiao, Chieh-Cheng Yang, Chien-Hao Liu   +4 more
doaj   +1 more source

Variable Temperature-Scanning Hall Probe Microscopy (VT-SHPM) with GaN/AlGaN Two-Dimensional Electron Gas (2DEG) Micro Hall Sensors in 4.2-425K range, Using Novel Quartz Tuning Fork AFM Feedback [PDF]

, 2008
In this report, we present the fabrication and variable temperature (VT) operation of Hall sensors, based on GaN/AlGaN heterostructure with a two-dimensional electron gas (2DEG) as an active layer, integrated with Quartz Tuning Fork (QTF) in atomic ...
Oral, Ahmet
core  

Electrochemical Nitrate Reduction Reaction to Ammonia at Industrial‐Level Current Densities

Advanced Science, EarlyView.
This review starts from the mechanism and theoretical basis of electrochemical nitrate reduction reaction (NO3−RR), and systematically summarizes and discusses the design strategies of industrial‐level current density catalysts. In addition, the progress of industrial‐level NO3−RR‐based electrolyzers, including flow reactor and membrane electrode ...
Zhijie Cui, Honghai Wang, Chunli Li, Wenchao Peng, Jiapeng Liu   +4 more
wiley   +1 more source

Highly sensitive and reversible MXene-based micro quartz tuning fork gas sensors with tunable selectivity

npj 2D Materials and Applications
Due to their distinctive morphology, significant surface-to-volume ratio, and metal-like electrical conductivity, MXenes have emerged as highly promising gas-sensing materials.
Wei Ding, Jingjing Yu, F. Tsow, L. Jaishi, B. Lamsal, Rick A Kittelson, Sarwar Ahmed, P. Kharel, Yue Zhou, Xiaojun Xian   +9 more
semanticscholar   +1 more source

Cross‐Modal Characterization of Thin‐Film MoS2 Using Generative Models

Advanced Intelligent Systems, EarlyView.
Cross‐modal learning is evaluated using atomic force microscopy (AFM), Raman spectroscopy, and photoluminescence spectroscopy (PL) through unsupervised learning, regression, and autoencoder models. Autoencoder models are used to generate spectroscopy data from the microscopy images.
Isaiah A. Moses, Chen Chen, Joan M. Redwing, Wesley F. Reinhart   +3 more
wiley   +1 more source

Ultrasound–Calcination Synergistic Control of (Ce, La)PO4 Catalyst Structure for Enhanced Low‐Temperature NH3‐SCR Performance

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT In this study, (Ce, La)PO4 catalysts were synthesized via an ultrasound‐assisted method. The effects of ultrasound duration and calcination temperature on the low‐temperature NH3‐SCR performance were systematically investigated. The results indicated that the (Ce, La)PO4 catalyst prepared with an ultrasound treatment time of 20 min and a ...
Na Li, Kai Yan, Shuning Tan, Ruifang Wang, Zhiyu Zhang   +4 more
wiley   +1 more source

A low-temperature dynamic mode scanning force microscope operating in high magnetic fields

, 1999
A scanning force microscope was implemented operating at temperatures below 4.2K and in magnetic fields up to 8T. Piezoelectric quartz tuning forks were employed for non optical tip-sample distance control in the dynamic operation mode. Fast response was
Ensslin, K., Herrmann, A., Ihn, T., Rychen, J., Studerus, P.   +4 more
core   +1 more source

Carbon-fiber tips for scanning probe microscopes and molecular electronics experiments [PDF]

, 2012
We fabricate and characterize carbon-fiber tips for their use in combined scanning tunneling and force microscopy based on piezoelectric quartz tuning fork force sensors.
A Castellanos-Gomez, A Castellanos-Gomez, A Castellanos-Gomez, A Castellanos-Gomez, Andres Castellanos-Gomez, B Xu, Carlos R Arroyo, F Giessibl, FJ Giessibl, FLX Chen, Gabino Rubio-Bollinger, GE Poirier, H Edwards, J Hahn, J Sripirom, JL Xia, Juan Carlos Cuevas, L Venkataraman, Linda A Zotti, MA Reed, MT Gonzalez, Nicolás Agraït, P Kim, RH Smit, Stefan Bilan   +24 more
core   +4 more sources

Enhancing the d–Electrocatalytic Activity of MXene Through Defect Engineering

Carbon Energy, EarlyView.
Applications of MXene. ABSTRACT Due to their versatile and tunable surface and bulk chemistry, MXenes have great potential as electrocatalysts for batteries and supercapacitors. When compared with other electrocatalytic processes, in electrocatalytic reactions, MXenes could improve ion diffusion and charge transfer by either providing functional groups
Chenxue Wang, Zixin Wang, Wen Lei, Haijun Zhang, Yuhua Wang   +4 more
wiley   +1 more source