Results 201 to 210 of about 202,998 (281)

Design of a 5G millimeter-wave wideband high-gain metamaterial-based antenna. [PDF]

Sci Rep
Osama I, Elhefnawy M, Yahya A.
europepmc   +1 more source

A Long-Range Distributed Antenna Method Based on Microwave-Photonics Frequency Synchronization. [PDF]

Entropy (Basel)
Teng H, Lin M, Han H, Gao H, Qin X, Chen B, Xie Y, He J, Liu B.   +8 more
europepmc   +1 more source

Multifunctional PVC/PVA‐ZnO Nanocomposites: Bridging Dielectric Response and Antibacterial Activity for Active Packaging Applications

Journal of Applied Polymer Science, EarlyView.
PVC and PVA polymer blends are studied as a function of frequency at room temperature to find the composition that gives the AC conductivity. The blend that has 75% PVC and 25% PVA is chosen as the matrix. Then 10% ZnO nanoparticles are added for food packaging. The change, in conductivity is used as a sign of activity and food freshness. ABSTRACT This
Salma Landolssi, Mahdi Hdidar, Mariem Chaari, Anissa Haddar, Makram Megdiche, Mourad Arous   +5 more
wiley   +1 more source

Sixty-port dual-band octa-pentacle MIMO antenna for vehicular communications. [PDF]

Sci Rep
Illakiya KS, Palaniswamy SK, Kumar S, Kanagasabai M, Kannappan L, Kumar DB, Hemanth S, Goyal B, Soliman NF, Algarni AD.   +9 more
europepmc   +1 more source

Compositionally Engineered Carboxymethyl Cellulose‐Based Optical Fibers With Exceptionally Low Optical Loss and Quantitative Humidity Sensing

Advanced Physics Research, EarlyView.
Carboxymethyl cellulose‐based biopolymer optical fibers are fabricated using aqueous wet spinning. The fibers exhibit record‐low optical attenuation in polysaccharide‐based waveguides while maintaining efficient transmission across the visible‐to‐near‐infrared region of the electromagnetic spectrum.
Jani Patrakka, Alizee Sanouillet, Ville Hynninen, Nonappa   +3 more
wiley   +1 more source

An Ultra-Wideband Circularly Polarized Optically Transparent Antenna Using ITO Film. [PDF]

Micromachines (Basel)
Wang K, Liu M, Lu G, Zhang H.
europepmc   +1 more source

Computational fluid dynamics simulations of airflow through the nasal passages of rhinolophoid bats

The Anatomical Record, EarlyView.
Abstract The nasal passages of bats that emit their echolocation call through their nostrils have adapted for sound emission as well as standard respiratory and olfactory functions. Rhinolophids, hipposiderids and rhinonycterids all use a high duty cycle (HDC) echolocation strategy.
Carley Goodwin, Jason M. Bourke, Daisuke Koyabu, Kyle N. Armstrong, Vuong T. Tu, Thongchai Ngamprasertwong, Thanakul Wannaprasert, Laura A. B. Wilson   +7 more
wiley   +1 more source

Applications of Nature-Inspired Water Cycle Algorithm in Antenna Design and Array Synthesis. [PDF]

Sensors (Basel)
Wei Y, Xu Y, Wang W, Wang A, Xu J, Luk KM.   +5 more
europepmc   +1 more source

Ultra-Wideband Antenna [PDF]

, 2010
openaire   +1 more source