(NEXSTAR) – After a few quiet years, there are warning signs that catalytic converter thieves are back on the job. In 2023, State Farm said claims for the catalytic converter theft had fallen from ...
New and existing security bollards/safety bollards can now be easily converted into security bollard lights without any wiring. Security bollards have long stopped vehicles, but remained passive. SECU ...
Abstract: This paper introduces a design of X-band down converter module based on microwave hybrid integrated. The module receives microwave signals from 8GHz to 9GHz, and outputs IF signal of 2.43GHz ...
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