Results 51 to 60 of about 5,521 (227)

Practical considerations for DNA sensing using Faradaic electrochemical impedance spectroscopy on ENIG PCB electrodes

Biosensors and Bioelectronics: X
Electroless nickel immersion gold (ENIG) finish printed circuit board (PCB) substrates offer a cost-effective solution for electrochemical sensing of biomolecules.
Shruti Ahuja, Avani Kulkarni, Richa Pandey, Kiran Kondabagil, Siddharth Tallur   +4 more
doaj   +1 more source

Fractional calculus model of electrical impedance applied to human skin. [PDF]

PLoS ONE, 2013
Fractional calculus is a mathematical approach dealing with derivatives and integrals of arbitrary and complex orders. Therefore, it adds a new dimension to understand and describe basic nature and behavior of complex systems in an improved way.
Zoran B Vosika, Goran M Lazovic, Gradimir N Misevic, Jovana B Simic-Krstic   +3 more
doaj   +1 more source

Surface Fermi Level Modulation of Photoanode by Optimized Conducting Nanoparticle Heterointerfaces for Enhanced Photoelectrochemical Water Splitting

Advanced Science, EarlyView.
Optimizing the heterointerface coverage of the conducting Ni2P nanoparticles on the surface of BVO photoanode manipulates the surface Fermi‐level modulation, which significantly enhances photoelectrochemical oxygen evolution reaction. Our multiscale simulations and experimental results reveal that an optimal Ni2P coverage of 9.4% pins the surface Fermi
Phuong Thi Pham, Seulgi Ji, Unbeom Baeck, Yuankai Li, Duong Nguyen Nguyen, Won Tae Hong, Yang You, John Moraros, Kyoungsuk Jin, Jun Young Lee, Chan‐Hwa Chung, Tae‐Hoon Kim, Jongwook Park, Heechae Choi, Jung Kyu Kim   +14 more
wiley   +1 more source

Estimating the State-of-Charge of Lithium-Ion Battery Using an H-Infinity Observer Based on Electrochemical Impedance Model

IEEE Access, 2020
The lithium-ion batteries in the electric vehicles are nonlinear systems with complex electrochemical dynamics, and estimation of battery state-of-charge (SOC) is affected by factors such as environmental temperature and battery current.
Ning Chen, Peng Zhang, Jiayang Dai, Weihua Gui   +3 more
doaj   +1 more source

(Fe4N/GaN)@GC: A Bifunctional Electrocatalyst for High‐Performance Rechargeable Zinc‐Air Batteries

Advanced Science, EarlyView.
This work demonstrates that an unprecedented Fe4N/GaN heterostructure, stabilized by a graphitized carbon shell, induces interfacial charge redistribution and optimizes oxygen‐intermediate adsorption, enabling highly efficient bifunctional ORR/OER electrocatalysis for rechargeable zinc‐air batteries.
Xin‐Yuan Wei, Sai‐Sai Xie, Xia‐Li Ding, Yuan‐Qi Zhai, Sen Yu, Xiang‐Quan Hu, Rongqian Wu, Jintao Lu, Yan‐Zhen Zheng   +8 more
wiley   +1 more source

Corrosion protection of mild steel by a new phosphonate inhibitor system in aqueous solution

Egyptian Journal of Petroleum, 2014
A protective film has been developed on the surface of the mild steel in low chloride aqueous environment using a synergistic mixture of an eco friendly inhibitor, imino dimethyl phosphonic acid (IDMPA) and Zn2+.
M. Prabakaran, K. Vadivu, S. Ramesh, V. Periasamy   +3 more
doaj   +1 more source

Soft, Multi‐Wavelength Photoplethysmography Enables Reliable Neonatal Blood Pressure Monitoring Via Error Stratification

Advanced Science, EarlyView.
A soft hybrid multi‐wavelength PPG wearable acquires neonatal signals. Synchronized PPG and invasive ABP data are segmented into fixed windows. A 1D‐EfficientNet model predicts segment‐level SBP and DBP. Model performance is examined with retrospective subgroup analysis across acquisition conditions.
Wenqi Shi, Lanlan Mi, Jiarong Chen, Biao Liu, Min Wang, Zisheng Dai, Bin Liu, Ruize Gao, Yunfeng Lin, Weiwei Guo, Guoxing Wang, Wenyi Luo, Cheng Chen   +12 more
wiley   +1 more source

Corrosion Inhibition of Steel in HCl by 2-Aminoethyl diphenylborinate

International Journal of Electrochemical Science, 2014
The corrosion behavior of C38 steel in HCl solution with different concentration of 2-Aminoethyl diphenylborinate C14H16BNO(DDB) was investigated by weight loss and electrochemical measurements.
L. Afia, R. Salghi, Eno E. Ebenso, M. Messali, S.S. Al-Deyab, B. Hammouti   +5 more
doaj   +1 more source

Phonon‐Driven Tetrahedral Tilts Enable Ultralow Bulk Thermal Expansion and Interstitial Oxide‐Ion Migration in Phenacite Solid Electrolytes

Advanced Science, EarlyView.
This work demonstrates a design paradigm of phonon‐driven negative‐thermal‐expansion (NTE) flexible framework that exploits the intrinsic lattice flexibility of NTE frameworks to simultaneously suppress thermal expansion and activate oxide‐ion conduction, offering a promising strategy to mitigate TEC mismatch in solid‐state ionic devices.
Xiaohui Li, Lu liang, Qilong Shi, Xiaoge Wang, Cheng Li, Sihao Deng, Lunhua He, Qiang Li, Kun Lin, Xianran Xing, Xiaojun Kuang   +10 more
wiley   +1 more source

Small-Signal Modeling and Nonlinear Characterization of Aligned Carbon Nanotube Schottky Barrier Diodes

Applied Sciences
Schottky barrier diodes (SBDs) based on low-dimensional materials are of interest for high-speed electronics due to their intrinsic nonlinear transport characteristics.
Linxin Dai, Junhong Wu, Honggang Liu
doaj   +1 more source