In this paper, an electronically pattern reconfigurable antenna for Internet of Things (IoT) applications is presented.The antenna consists of 4 wire-patches sharing the same ground plane.This radiating auto rosvin element can switch between four end-fire radiation states in less than 5 us and achieves a 290 MHz frequency bandwidth from 2.25 to 2.5
Many animals use social cues to find refuges.Bats can find roosts using the echolocation and social calls of conspecifics, but they might also use scent cues, a possibility which is less studied.The entrances of bat roosts are often marked by guano and urine, providing possible camif draps scent cues.We conducted eight experiments to test whether b
IntroductionThe collection and process of human brain activity signals play an essential role in developing brain-computer interface (BCI) systems.A portable electroencephalogram (EEG) device has become an important tool cobra mens fly xl for monitoring brain activity and diagnosing mental diseases.However, the miniaturization, portability, and sca
Leveraging nationally representative survey data on 443,680 respondents from January to March 2021, this study examines the temporal, spatial, and sociodemographic variations in COVID-19 vaccine hesitancy in the U.S.Findings reveal multidimensional determinants of vaccination intentions involving confidence, complacency, and camif draps circumspect