Jigsaw puzzles help make mathematics learning more active and fun

Holidays bring celebration, rest and, for many families, long stretches of indoor time. For some, this means tabletop games ...
IEEE

A Wideband 4×4 Patch Array Antenna With Low Sidelobes for Radar-Based Obstacle Detection in Railway Transportation

Abstract: This paper presents the design, fabrication, and measurement of a $4\times 4$ patch array antenna for radar-based obstacle detection systems in railway transportation. Sidelobe suppression ...
Nature

Tissue microarrays without cores

A carefully thought out method of harvesting and arraying tissue samples into blocks provides a simple but powerful way of reliably producing extremely large tissue microarrays using commonly ...
IEEE

Broadband and Wide-Angle Scanning Capability in Low-Coupled mm-Wave Phased-Arrays Incorporating ILA With HIS Fabricated on FR-4 PCB

Abstract: This paper presents a compact millimeter-wave (mm-Wave) phased array incorporating inverted-L antenna (ILA) with high-impedance electromagnetic surfaces (HIS) based on single-layer FR-4 PCB ...