CHIRP IONOSONDE AND ITS APPLICATION IN THE IONOSPHERIC RESEARCH
CORRELATION BETWEEN VARIATIONS IN THE NUMBER OF NEUTRONS IN THE ATMOSPHERE AND IN THE INTENSITIES OF THE ATMOSPHERIC OZONE LINES
AXISYMMETRIC WAVES IN RE-ENTRANT CAVITIES
SCATTERING OF A PLANE ELECTROMAGNETIC WAVE BY AN INFINITE DIHEDRAL WEDGE WITH A SLOTTED CYLINDER AT THE APEX
CATHODE SHEATH INSTABILITY AT FREQUENCIES NEAR THE ION PLASMA FREQUENCY
QUANTIZATION EFFECTS IN FIRST-ORDER DIGITAL RECURSIVE FILTERS WITH ROUNDOFF