List of Articles Directivity Open Access Article Abstract Page Full-Text 1 - Improving the directivity of the plasmonic sectoral horn nanoantenna using lens in its aperture Masumeh Sharifi Najmeh Nozhat Ehsan Zareian-Jahromi Open Access Article Abstract Page Full-Text 2 - Adaptive Acoustic Beamforming with Improved Differential Method Negar Sarshar Mehdi Bekrani