Results 21 to 30 of about 5,521 (227)

Impedance model for a high-temperature ceramic humidity sensor [PDF]

Journal of Sensors and Sensor Systems, 2019
We present an equivalent circuit model for a titanium dioxide-based humidity sensor which enables discrimination of three separate contributions to the sensor impedance.
H. Lensch, M. Bastuck, T. Baur, A. Schütze, T. Sauerwald   +4 more
doaj   +1 more source

Corrosion Behaviour of Mild Steel in Sulphuric Acid Solution in Presence of Ceftazidime

International Journal of Electrochemical Science, 2011
The corrosion inhibition properties of ceftadizime (CZD) for mild steel corrosion .in H2SO4 solution were analysed by electrochemical impedance spectroscopy (EIS), potentiodynamic polarization and gravimetric methods.
Ashish Kumar Singh, Sudhish Kumar Shukla, M.A. Quraishi   +2 more
doaj   +1 more source

Inhibitive Effect of Cefuroxime on the Corrosion of Mild Steel in Hydrochloric Acid Solution

International Journal of Electrochemical Science, 2011
The corrosion inhibition properties of cefuroxime (CFM) for mild steel corrosion in HCl solution was investigated using electrochemical impedance spectroscopy (EIS), potentiodynamic polarization and gravimetric methods.
Ashish K. Singh, M.A. Quraishi, Eno E. Ebenso   +2 more
doaj   +1 more source

Fractional Energy: A Theoretical Characterization of the State of Charge of the Ultracapacitor Modeled as a Constant Phase Element

Fractal and Fractional
Based on the Infinite State Representation (ISR) of the Riemann–Liouville integral, the energy stored in a fractional-order integrator is revisited, together with the energy dissipated through Joule losses.
Jean-Claude Trigeassou, Nezha Maamri
doaj   +1 more source

Extending Randles’s Battery Model to Predict Impedance, Charge–Voltage, and Runtime Characteristics

IEEE Access, 2020
The impedance of a battery can be modelled with an elegant fractional-capacitor or “constant phase element” (CPE) equivalent circuit and a series resistor.
Rahat Hasan, Jonathan Scott
doaj   +1 more source

Laser‐Induced Graphene from Waste Almond Shells

Advanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova, Anna Chiara Bressi, Marina Galliani, Attilio Marino, Gianni Ciofani, Eduardo Machado‐Charry, Hilda Gomez Bernal, Alessandra Francini, Luca Sebastiani, Francesco Greco   +9 more
wiley   +1 more source

Electrochemical and Theoretical Studies of Adsorption of Some Indole Derivates at C38 Steel/Sulfuric Acid Interface as Corrosion Inhibitors

International Journal of Electrochemical Science, 2011
The inhibitive action of 9H-pyrido[3,4-b]indole (norharmane) and 1-Methyl-9H-pyrido[3,4-b]indole (harmane) on corrosion of C38 steel in 0.5 M H2SO4 solution was investigated through electrochemical techniques.
M. Lebrini, C. Roos, H. Vezin, F. Robert
doaj   +1 more source

Titanium Suboxides Responsible for Electronic Anomaly Near Room Temperature in the Ti3C2Tx MXene

Advanced Functional Materials, EarlyView.
Our multi‐technique study reveals that the near‐room‐temperature anomaly in Ti3C2Tx MXene is linked to titanium suboxide nanodomains, including Ti3O5, embedded within the MXene host. Their temperature‐driven transformation provides an alternative explanation to solvent‐ and swelling‐based models and offers new insight into the thermally activated ...
Bence G. Márkus, Bradlee J. McIntosh, Lili Vajtai, Anna Nyáry, Sándor H. Sipos, Nirmal J. Ghimire, Ferenc Simon, László Forró, Dávid Beke   +8 more
wiley   +1 more source

Mimicking Silent Synapse Recruitment: A SiOx/Cu‐Pancake Memristive Device For Analog Neuromorphic Computing

Advanced Functional Materials, EarlyView.
Electroforming‐free TiN/SiOx/Cu/SiOx/TiN memristive devices exploit pancake‐like Cu nanoparticles embedded in a SiOx double layer to create a heterogeneous Schottky‐barrier landscape. Under bias, oxygen‐vacancy redistribution progressively lowers local barriers and recruits initially inactive Cu‐PC pathways into a parallel conduction ensemble, enabling
Rouven Lamprecht, Ole Gronenberg, Sahitya Yarragolla, Tobias Gergs, Richard Marquardt, Victor Witte, Jürgen Carstensen, George Popkirov, Jan Trieschmann, Lorenz Kienle, Hermann Kohlstedt   +10 more
wiley   +1 more source

Portable Molecularly Imprinted Polymer Sensor for Rapid Swab‐Based Detection of Norovirus

Advanced Healthcare Materials, EarlyView.
This work reports a rapid, portable smartphone‐based sensor capable of detecting four norovirus genotypes from swab samples within 15 min. Sensor selectivity was validated through evaluation against four common live viruses. The swab‐based sampling process enabled simple sample preparation combined with the compact detection system, supporting use of ...
Amy Dann, Pankaj Singla, Minji Kim, Sloane Stoufer, Clare Thomas, Robert D. Crapnell, Craig E. Banks, Jake McClements, Shayan Seyedin, Mark Geoghegan, Samuel T. Jones, Christopher F. Blanford, Matthew D. Moore, Marloes Peeters   +13 more
wiley   +1 more source