资讯

In this paper, a high gain patch antenna using a near-zero-index metamaterial (NZIM) coating is presented for operating at 4.35 GHz. The proposed NZIM unit-cell is investigated and analyzed by both ...
Teflon: Some nonstick pans are sealed with a Teflon coating that can contain PFOA (perfluorooctanoic acid) or PTFE (Polytetrafluoroethylene), which can create toxic fumes when heated. These toxic ...
No Kings protests in New Jersey and New York are happening this weekend. See protests near you for June 14.