This study compares the F1 layer critical frequencies (foF1) between the 22/23 and 23/24 solar minimums to investigate the effects of extremely low solar activities on F1 layer. The foF1 data of 1996 and 2008 at various ...

The steady-state response of forced single degree-of-freedom weakly nonlinear oscillators under primary resonance conditions can exhibit saddle-node bifurcations, jump and hysteresis phenomena, if the amplitude of the ...

The long term solar activity dependencies of ionospheric F1 and F2 regions’ critical frequencies (f0F1 and f0F2) are analyzed for the last four solar cycles (1976–2015). We show that the ionospheric F1 and F2 regions have ...

The aim of the present study was to verify the applicability of anaerobic work capacity (AWC) determined from the critical power model in elite table tennis players. Eight male international level table tennis players ...

The aim of the present study was to verify the applicability of anaerobic work capacity (AWC) determined from the critical power model in elite table tennis players. Eight male international level table tennis players ...

The aim of the present study was to verify the applicability of anaerobic work capacity (AWC) determined from the critical power model in elite table tennis players. Eight male international level table tennis players ...

A novel technique for modeling GaN and GaAs transistors for data communications is proposed. The technique can model one of the most critical phenomena in wideband communications, called frequency dispersion effects. Results ...