Results 111 to 120 of about 82,131 (349)
Reconstruction of annular bi-layered media in cylindrical waveguide section [PDF]
, 2016 A radial transverse resonance model for two cylindrical concentric layers with different complex dielectric constants is presented. An inverse problem with four unknowns - 3 physical material parameters and one dimensional dielectric layer thickness ...
Beilina, Larisa +2 more
core +2 more sources
An Area-variant Type MEMS Capacitive Sensor Based on A Novel Bionic Swallow Structure for High Sensitive Nano-indentation Measurement [PDF]
, 2022 Wendi Gao
openalex +1 more source
Advanced Functional Materials, EarlyView.Dielectric capacitors typically struggle to achieve both high energy storage density and high efficiency at applied voltages below 10 V. Here, we address this challenge by introducing a novel hybrid fluorite/perovskite heterostructure design that combines ultra‐high recoverable energy storage density with efficient energy release (Uf ≈ 1016 J/cm3), at ...
Ampattu R. Jayakrishnan +10 more
wiley +1 more source
AIP Advances, 2017 In the paper, a new capacitive sensor with a dielectric film coating was designed to measure the thickness of the liquid film on a flat surface. The measured medium can be conductive or non-conductive fluid with high viscosity such as silicone oil, syrup,
Yongxin Yu +4 more
doaj +1 more source
Usage of Porous Al2O3 Layers for RH Sensing [PDF]
, 2007 At the Department of Electron Devices a cheap, more or less CMOS process compatible capacitive type RH sensor has been developed. Capacitive sensors are based on dielectric property changes of thin films upon water vapour uptake which depends on the ...
Juhász, László +3 more
core +2 more sources
Advanced Functional Materials, EarlyView.A MXene/PEDOT coating enables multimodal functionality and dual‐analyte detection of dopamine and serotonin in flexible microelectrode arrays while enhancing electrophysiological recording quality. The anti‐fouling, low‐impedance interface overcomes key limitations of conventional coatings, providing a robust and versatile platform to investigate the ...
Ilaria Gatti +8 more
wiley +1 more source
IEEE Access, 2019 A capacitive fingerprint system is the most widely used biometric identification method for smartphones. In this paper, we propose a RF sensor-based liveness detection scheme.
Woojung Kim +4 more
doaj +1 more source
Advanced Functional Materials, EarlyView.Flexible piezoresistive pressure sensors underpin wearable and soft electronics. This review links sensing physics, including contact resistance modulation, quantum tunneling and percolation, to unified materials/structure design. We highlight composite and graded architectures, interfacial/porous engineering, and microstructured 3D conductive networks
Feng Luo +2 more
wiley +1 more source
Simultaneous capacitive probe and planar laser-induced fluorescence measurements in downwards gas-liquid annular flow [PDF]
, 2017 Various experimental techniques are available to analyse two-phase flows. The measurement concept and the applicability can however vary greatly. Prime examples from the opposite spectrum are planar laser-induced measurements (PLIF) versus capacitive ...
An, Jae S +4 more
core +1 more source
Electrical Capacitance Tomography With Differential Sensor
IEEE Sensors Journal, 2015 In electrical capacitance tomography, capacitance changes are used to determine the permittivity distribution in the imaging area. However, the changes are small compared to the standing capacitances, e.g. usually in the order of 10~30%. For a single channel capacitance sensor, a differential configuration having a redundant pair of electrodes can be ...
Ziqiang Cui, Huaxiang Wang, Wuliang Yin
openaire +3 more sources