Download this Bright Gradient Background Vector Glass Grainy Blurred Neon In Pastel Colors For Covers Wallpapers Branding And Other Projects Multicolored Glass Texture For Banner Wallpaper Template ...

Compared to conventional cavity-backed slot antennas, both the bandwidth and gain of the proposed antenna are significantly increased by adding a multilayer dielectric cover.

The problem of stolen and poorly managed gas well covers in cities has become increasingly prominent, and the existing urban manhole cover monitoring system has single monitoring parameters, immature ...