Results 211 to 220 of about 226,669 (303)
W-Band Through-Wall Radar Using a High-Gain Frequency-Scanning SSPP Antenna. [PDF]
Tian Z +6 more
europepmc +1 more source
Conceptual illustration of the retro‐reflective and transmissive metasurface (RRTM). The blue radar establishes communication with the UAV via the transmissive mode, whereas the purple surveillance radar acquires the status of friendly units through the retro‐reflective mode and the two modes operate simultaneously within the same decoupled aperture ...
Shulei Zhang +8 more
wiley +1 more source
Joint communication and sensing with structured beams carrying orbital angular momentum. [PDF]
Shen R, Ghasempour Y.
europepmc +1 more source
This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele +2 more
wiley +1 more source
Large-array sub-millimeter precision coherent flash three-dimensional imaging. [PDF]
Wang B +9 more
europepmc +1 more source
The field of polymer thermoelectrics is entering a new era, featuring breakthroughs in addressing the conventional performance disparity between p‐type and n‐type polymers, pioneering doping frontiers, and sophisticated decoupling strategies. This review explores innovations in molecular design and superior stabilities, bridging the gap from ...
Suhao Wang
wiley +1 more source
Design and Experimental Validation of a 12 GHz High-Gain 4 × 4 Patch Antenna Array for S21 Phase-Based Vital Signs Monitoring. [PDF]
Vatamanu D, Miclaus S, Matekovits L.
europepmc +1 more source
The performance of Cu‐based photocathodes in photoelectrochemical CO2 reduction is not governed by catalytic sites alone, but by the dynamic journey of photogenerated carriers. This review decodes how carrier generation, recombination, transport, accumulation, extraction, and electrolyte coupling shape catalytic activity, selectivity, and stability ...
Yi‐Cheng Wang +5 more
wiley +1 more source
A near zero refractive indexed non-uniform metasurface for broadband RCS reduction of an antipodal Vivaldi antenna. [PDF]
Das P, Kundu S, Kumar R.
europepmc +1 more source
Frequency-comb-steered ultrawideband quasi-true-time-delay beamformer for integrated sensing and communication. [PDF]
Wang M +5 more
europepmc +1 more source

