Frequency Shift Algorithm: Design of a Baseband Phase Locked Loop for Frequency-Domain Multiplexing Readout of X-ray Transition-Edge Sensor Microcalorimeters. - Paul van der Hulst; Jan van der Kuur; Ad Nieuwenhuizen; Davide Vaccaro; Hiroki Akamatsu; Patrick van Winden; Bert-Joost van Leeuwen; Jan-Willem den Herder (CoRR, 2021)

Generating Event Structure from Set of Acyclic Relations in Choreography Realization. - Toshiyuki Miyamoto; Hiroki Akamatsu (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2025)