Results 101 to 110 of about 85,220 (297)

An Investigative Redesign of the ECG and EMG Signal Conditioning Circuits for Two-fault Tolerance and Circuit Improvement [PDF]

, 1991
An investigation was undertaken to make the elctrocardiography (ECG) and the electromyography (EMG) signal conditioning circuits two-fault tolerant and to update the circuitry.
Obrien, Edward M.
core   +1 more source

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

Advanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades, Pedro Hidalgo, David Maestre, Ruth Martínez‐Casado, Emilio Nogales, Beatriz Rodríguez, G. Cristian Vásquez, Bianchi Méndez   +7 more
wiley   +1 more source

Directional Flow of Confined Polaritons in CrSBr

Advanced Materials, EarlyView.
CrSBr, a layered magnetic semiconductor, naturally channels self‐hybridized excitonpolaritons into highly directional flow. Its intrinsic optical anisotropy, high refractive index, and strong lightmatter coupling enable long‐range guided modes along the a‐axis, with propagation lengths set by their excitonphoton admixture.
Pratap Chandra Adak, Sichao Yu, Jaime Abad‐Arredondo, Biswajit Datta, Andy Cruz, Sorah Fischer, Kseniia Mosina, Zdeněk Sofer, Antonio I. Fernández‐Domínguez, Francisco J. Garcia‐Vidal, Vinod M. Menon   +10 more
wiley   +1 more source

Tuning the Josephson diode response with an ac current

Physical Review Research
Josephson diodes are superconducting elements that show an asymmetry in the critical current depending on the direction of the current. Here, we theoretically explore how an alternating current bias can tune the response of such a diode. We show that for
Rubén Seoane Souto, Martin Leijnse, Constantin Schrade, Marco Valentini, Georgios Katsaros, Jeroen Danon   +5 more
doaj   +1 more source

Integrating Vibrio natriegens for Photon Manipulation in Living Lighting Devices

Advanced Materials, EarlyView.
Rationalization of genetic and material engineering tools has enabled the engineering of fluorescent Vibrio natriegens (V. natriegens) to fabricate straightforward, highly emissive and stable V. natriegens‐silicones color filters for the first red‐emitting bacteria‐hybrid light‐emitting diodes. This pinpoints V. natriegens as a high‐performance protein
Stephanie Willeit, Maurice Hädrich, Philippe‐Quentin Liss, Valeria Rodriguez Espinoza, Nicklas Maximilian Foerster, Bastian Blombach, Rubén D. Costa   +6 more
wiley   +1 more source

Modeling and parameter calculation of photovoltaic fields in irregular weather conditions

Ingeniería, 2012
In this paper, a model for photovoltaic (PV) fields and a procedure for calculating theparameters of the modules of a string (a group of PV modules connected in series)are presented.
Juan David Bastidas Rodríguez, Carlos Andrés Ramos-Paja, Edison Franco Mejia   +2 more
doaj  

Numerical analysis of high-index nanocomposite encapsulant for light-emitting diodes

, 2005
We used two-dimensional Finte-Difference-Time-Domain (FDTD) software to study the transition behavior of nano-particles from scatterers to an optically uniform medium.
Almuneau, Guilhem, Ju, Young-Gu, Kim, Tae-Hoon, Lee, Baek-Woon   +3 more
core   +1 more source

Metamaterial Antennas Enhance MRI of the Eye and Occipital Brain

Advanced Materials, EarlyView.
A radiofrequency antenna platform comprising planar and bend configurations is developed, incorporating structurally integrated epsilon‐negative metamaterial unit cells to enhance MRI. These antennas enable high‐resolution in vivo human MRI of the eye, orbit, and occipital brain. Comprehensive validation, including simulations, phantom experiments, SAR,
Nandita Saha, Bilguun Nurzed, Mostafa Berangi, Andre Kuehne, Helmar Waiczies, Igor Fabian Tellez Ceja, Xiang Hu, Thomas Gladytz, Lisa Krenz, Dave Huebler, Beate Endemann, Claudia Brockmann, Ebba Beller, Oliver Stachs, Thoralf Niendorf   +14 more
wiley   +1 more source

Frequency Selective Surfaces as Reconfigurable Superstrate Applied to a Dipole Antenna for 5G NR [PDF]

Journal of Microwaves, Optoelectronics and Electromagnetic Applications
This paper introduces a novel reconfigurable superstrate using a band-stop frequency selective surface (FSS) based on four arms star geometry. The proposed reconfigurable superstrate is applied to a dipole antenna for use in 5G NR technology with a ...
Thamyris da Silva Evangelista, Juliete da Silva Souza, Alexandre Jean René Serres, Alfredo Gomes Neto   +3 more
doaj   +1 more source

Spatial Multiplexing of QPSK Signals with a Single Radio: Antenna Design and Over-the-Air Experiments

, 2016
The paper describes the implementation and performance analysis of the first fully-operational beam-space MIMO antenna for the spatial multiplexing of two QPSK streams.
Austin, Andrew C. M., Burg, Andreas, Mosig, Juan R., Perruisseau-Carrier, Julien, Yousefbeiki, Mohsen   +4 more
core   +1 more source