Large wildfire events in coniferous forests of the western United States are often followed by postfire timber harvest. The long-term impacts of postfire timber harvest on fire-associated cavity-nesting bird species are not well documented. We studied nest-site selection by cavity-nesting birds over a 10-year period (1994–2003), representing 1–11 years after fire, on two burns created by mixed ...

This paper presents a newly developed hybrid simulation technique for coupled structural-acoustic analysis, which applies a wave based model for the acoustic cavity and a modally reduced finite element model for the structural part. The resulting hybrid model benefits from the computational efficiency of the wave based method, while retaining the finite element method’s ability to model the str...

This paper presents a frequency reconfigurable evanescent-mode cavity-backed slot antenna (ECBSA) with wide tuning range, high-power handling capability, and simplified manufacturing. The mechanism consists of external long-range linear actuators contactless tuner disc to vary the capacitive loading an cavity. antenna’s operating is tuned by changing cavity’s critical gap size. Radiation occurs...