Results 71 to 80 of about 16,281 (307)

An Edible H2O2 Biosensor for Gastrointestinal Metabolites and Peroxidase Enzyme Quantification

Advanced Healthcare Materials, EarlyView.
We present an edible biosensor for gastric fluid analysis that integrates a caffeic acid–horseradish peroxidase redox system into an edible electrolyte‐gated transistor. The device enables rapid, low‐volume detection of H2O2 and, with minimal modification, metabolites and enzyme activity in simulated gastrointestinal conditions.
Valerio Francesco Annese, Elena Feltri, Pietro Rossi, Valerio Galli, Cristiano Bortolotti, João Paulo Vita Damasceno, Ivan K. Ilic, Dario Natali, Alessandro Luzio, Adrica Kyndiah, Mario Caironi   +10 more
wiley   +1 more source

A Space-Vector Analysis of the Twelve-Pulse Diode Bridge Rectifier Operation for the Auxiliary Circuit Current Determination Providing the Optimal Line Currents’ THD

Energies
Three-phase diode bridge rectifiers are widely employed in various industrial applications because of their inherent simplicity, robustness, low electromagnetic interference and good overall performance.
Jaroslaw Rolek, Grzegorz Utrata
doaj   +1 more source

Robust current control scheme for single‐phase PWM rectifiers based on improved μ ‐synthesis in electric locomotive

IET Power Electronics, 2020
The parameter perturbation of grid‐side equivalent inductance is a significant feature of the uncertainty in the single‐phase pulse‐width modulation rectifiers system for the electric locomotive. This characteristic tends to reduce the robustness of the rectifier system.
Haoran Liu, Lei Ma, Lin Peng, Wensheng Song, Shaokun Cheng   +4 more
openaire   +1 more source

3D Anodic Alumina Nanoarchitectures: A Decade of Progress from Foundational Science to Functional Metamaterials

Advanced Materials, EarlyView.
Ordered three‐dimensional anodic aluminum oxide (3D‐AAO) nanoarchitectures with longitudinal and transverse pores enable architecture‐driven metamaterials. The review maps fabrication advances, including hybrid pulse anodization, and shows how 3D‐AAO templates tailor properties across magnetism, energy, catalysis, and sensing.
Marisol Martín‐González
wiley   +1 more source

Symmetrical angle switched single-phase and three-phase rectifiers: application to micro hydro power plants [PDF]

, 2019
Micro-size hydro power plants are commonly used at remote areas to supply islanded AC microgrids. A typical way to control grid frequency is to manipulate active power dissipated in ballast loads by AC/AC converters.
Bory Prevez, Henry, Majanne, Yrjö, Martínez García, Herminio, Vazquez Seisdedos, Luis   +3 more
core  

Soft Ionic and Electronic Triboelectric Nanogenerators: Toward Attachable and Implantable Biomedical Applications

Advanced Materials, EarlyView.
This review provides an overview of triboelectric nanogenerator (TENG)–based biomedical applications by classifying studies into electronic and ionic systems across attachable and implantable platforms. It summarizes key material choices, device structures, and working mechanisms that characterize current TENG‐based research, and outlines six future ...
Kyongtae Choi, Jimin Park, Won Jun Song, Soohwan An, Seonggyu Choe, Byeong‐Rak Keum, Min Young Kim, Dae Hee Hwang, Young‐Geun Park, Sung‐Won Kim, Sangyul Baik, Gwang‐Bum Im, Younghoon Lee   +12 more
wiley   +1 more source

Line current harmonics of three‐level neutral‐point‐clamped electric multiple unit rectifiers: analysis, simulation and testing

IET Power Electronics, 2014
The harmonic spectra of the AC supply currents of electric multiple units (EMUs) employing three‐level neutral‐point‐clamped converters are discussed in this study. The analytical expressions of high‐order harmonics because of high‐frequency three‐level phase‐opposition disposition pulse‐width modulation are derived by using double Fourier series and a
Song Kejian, Wu Mingli, Vassilios Georgios Agelidis, Wang Hui   +3 more
openaire   +1 more source

Beyond Earth: Resilience of Quasi‐2D Perovskite Solar Cells in Space

Advanced Materials, EarlyView.
In the article (DOI: 10.1002/adma.202520433), Christoph Putz and co‐workers demonstrate rigid quasi‐2D perovskite solar cells operating in low Earth orbit, delivering stable power for more than 100 days under real‐space conditions. In‐orbit performance is correlated with extensive ground‐based thermal and proton‐irradiation studies on rigid and ...
Christoph Putz, Lukas E. Lehner, Stepan Demchyshyn, Bekele Hailegnaw, Phillip Jahelka, Magdalena Breitwieser, Sercan Özen, Andrea Denker, Jürgen Bundesmann, Alina Hanna Dittwald, Dilara Karabulut, Philipp Tockhorn, Steve Albrecht, Felix Lang, Markus C. Scharber, Michael D. Kelzenberg, Harry A. Atwater, Martin Kaltenbrunner   +17 more
wiley   +1 more source

Phase cascade lattice rectifier array: an exactly solvable nonlinear network circuit [PDF]

, 2018
An exact analysis of a 2-D lattice network consisting of N × N sites with rectifier and AC source elements with controllable phases reveals a method for generating ripple-free DC power without the use of any filtering circuit elements.
Chen, J., Erramilli, S., Gole, A. M., Hong, Mi K., Mohanty, Pritiraj, Narayan, O., Nazari, M.   +6 more
core   +1 more source

Wind energy conversion into electricity by means of the rectifier with near sinusoidal input current‐1 converter

IET Renewable Power Generation, 2013
The study presents a wind generator system based on a new converter configuration with a rectifier with near sinusoidal input currents (RNSICs‐1 converter with DC capacitors connected in parallel with diodes). A detailed analysis of the system for different values of the load current is presented and the advantages of the solution are emphasised.
Dimitrie Alexa, Irinel Valentin Pletea, Adriana Sirbu, Alexandru Lazar   +3 more
openaire   +1 more source