Results 231 to 240 of about 14,576 (298)

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

Overview of Vivaldi Antenna Selection for Through-Wall Radar Applications. [PDF]

Sensors (Basel)
Amador M, Rouco A, Albuquerque D, Pinho P.   +3 more
europepmc   +1 more source

Highly Sensitive Electrochemical Biosensor Based on Hairy Particles with Controllable High Enzyme Loading and Activity

Advanced Functional Materials, EarlyView.
For the first time, a highly sensitive electrochemical biosensor based on SiO2‐based hairy particles with a grafted PDMAEMA polymer brush containing a quantifiable and large amount of immobilized Laccase is reported. The fabricated biosensor exhibits a sensitivity of 0.14 A·m⁻¹, a limit of detection (LOD) of 0.1 µm, and a detection range of 0.3–750 µm,
Pavel Milkin, Anila Antony, Hongtao Cai, Antonia Debevc, Ceyda Topal, Anne Linhardt, Alla Synytska, Leonid Ionov   +7 more
wiley   +1 more source

A high gain microwave and millimeter-wave-based balanced antipodal Vivaldi antenna with a parasitic patch and a half-spherical shaped dielectric lens. [PDF]

Heliyon
Razib MHR, Das D, Murshed AH, Hossain MA, Paul LC, Hossain MA.   +5 more
europepmc   +1 more source

Advancing sustainable RF energy harvesting for wearable electronics with 2.45 GHz textile-printed rectennas. [PDF]

Sci Rep
Tavares J, Lacik J, Pinho P, Raida Z, Alves H.   +4 more
europepmc   +1 more source

Rotation insensitive implantable wireless power transfer system for medical devices using metamaterial-polarization converter. [PDF]

Sci Rep
Shaw T, Mandal B, Samanta G, Voigt T, Mitra D, Augustine R.   +5 more
europepmc   +1 more source

Dual-Band Passive Beam Steering Antenna Technologies for Satellite Communication and Modern Wireless Systems: A Review. [PDF]

Sensors (Basel)
Nabeel MI, Singh K, Afzal MU, Thalakotuna DN, Esselle KP.   +4 more
europepmc   +1 more source

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Detection Probability Estimation of Directional Antennas and Omni-Directional Antennas

Wireless Personal Communications, 2009
This paper studies the problem of detection of directional antennas and omni-directional antennas by hostile detection systems. We present a model for calculating the probability of detecting a transmitter at arbitrary location around the transmitter. Our study shows that, if a directional antenna employs the same transmit power as an omni-directional ...
Xiaofeng Lu, Fletcher Wicker, Don Towsley, Zhang Xiong 0001, Pietro Liò   +4 more
openaire   +1 more source