Results 31 to 40 of about 60,477 (313)

On the Design of a Thermo-Magnetically Activated Piezoelectric Micro-Energy Generator: Working Principle

Sensors, 2022
This paper deals with a new design of a thermo-magnetically activated piezoelectric generator. This proposed generator exploits the temperature-dependent magnetization of a ferromagnetic material, which is exposed to temporary change of temperature ...
Adrian A. Rendon-Hernandez, Skandar Basrour   +1 more
doaj   +1 more source

Size-Reduction of a Dual-Band Circularly Polarized Dielectric Resonator Antennas

IEEE Access, 2021
In this paper, the size reduction of a dual-band circularly polarized (CP) Y-shaped dielectric resonator antenna (YDRA) is performed. Unlike the conventional CP DRAs, the circular polarization in the YDRA is achieved by the combination of linearly ...
Amir Altaf, Munkyo Seo
doaj   +1 more source

A THREE-BAND PATCH ANTENNA USING A DEFECTED GROUND STRUCTURE OPTIMIZED BY A GENETIC ALGORITHM FOR THE MODERN WIRELESS MOBILE APPLICATIONS

Jordanian Journal of Computers and Information Technology, 2023
This paper presents a design and optimization approach for a tri-band miniature planar rectangular patch antenna structure for wireless mobile applications.
Khadija Abouhssous, Layla Wakrim, Asmaa Zugari, Alia Zakriti   +3 more
doaj   +1 more source

Development of an analytical method for the simultaneous determination of 22 Polycyclic Aromatic Hydrocarbons (PAHs) in maternal and umbilical cord blood

Comptes Rendus. Chimie
Pregnant women and their fetuses, a very fragile population, are exposed to polycyclic aromatic hydrocarbons (PAHs) and subject to potentially serious health risks.
Swiha, Stéphanie, Pichon, Valérie, Fournier, Thierry, Gil, Sophie, Delaunay, Nathalie   +4 more
doaj   +1 more source

Combined 5‐aminolevulinic acid and ferric ammonium citrate treatment promotes hair follicle growth by activating dermal papilla cells

FEBS Open Bio, EarlyView.
5‐Aminolevulinic acid combined with ferric ammonium citrate (5‐ALA/FAC) stimulates dermal papilla cell activity and promotes hair follicle growth. The treatment enhances ERK and AKT signaling, increases hair‐inductive gene expression, and restores dermal papilla function suppressed by dihydrotestosterone and oxidative stress, resulting in enhanced hair
Han‐Wook Ryu, Eok‐Soo Oh, Sewoon Kim
wiley   +1 more source

A Miniaturized Marchand Balun Model With Short-End and Capacitive Feeding

IEEE Access, 2018
A new equivalent circuit model of an electrical size-reduced coupled line radio frequency Marchand balun is proposed and investigated in this paper. It consists of two parts of coupled lines with significantly reduced electrical length. Compared with the
Yang Wang, Jong-Chul Lee
doaj   +1 more source

Modulator-Free Variable Multi-Rate FSO Communication 1 km Outfield Demonstration Based on Chirp-Managed Laser

IEEE Photonics Journal, 2022
Due to the high energy efficiency per bit and high sensitivity, Return-to-zero differential-phase-shift-keying (RZ-DPSK) is perfectly suitable for free-space laser communications.
Zhuang Xie, Shuaiwei Jia, Wen Shao, Yang Wang, Rong Ma, Sentao Wei, Peixuan Liao, Dongquan Zhang, Weiqiang Wang, Duorui Gao, Wei Wang, Xiaoping Xie   +11 more
doaj   +1 more source

Directed evolution of enzymes at the crossroads of tradition and innovation

FEBS Open Bio, EarlyView.
An iterative cycle of data‐driven enzyme optimization comprising four stages: genetic diversification of a template enzyme, expression of protein variants, high‐throughput evaluation, and machine‐learning‐guided redesign of the next variant library.
Maria Tomkova, Andrej Mirossay, Erik Sedlak   +2 more
wiley   +1 more source

A new flow chip in combination with multiphoton microscopy as a protocol for longitudinal 3D imaging of tissue calcification under shear stress

FEBS Open Bio, EarlyView.
Miniaturized flow chip platform enabling continuous perfusion and longitudinal multiphoton 3D imaging of vascular smooth muscle cell constructs under physiological flow. Brightfield imaging guides region selection, while CellTracker Green and mRuby‐labeled fetuin‐A visualize cells and mineral deposition, respectively. Magnesium supplementation markedly
Vytautas Kučikas, Aaron D. Morgan, Ignas Čiurlionis, Christian Böhm, Stefan Jockenhövel, Willi Jahnen‐Dechent, Marc A. M. J. van Zandvoort   +6 more
wiley   +1 more source

Review on miniaturization and development trends of SiC devices

, 2023
Electrical vehicles and photovoltaic applications played important roles in the development of SiC devices, and promoted the improvement of the SiC industry chain in China.
ZHANG Qingchun, ZHANG Yuanlan
core   +1 more source