Introduction of Vol.15

• PROJECT STORY：AI-Powered Noise Reduction
  Rion’s Mission to Develop Hearing Aids That Integrate Seamlessly into Daily Life
• HISTORY OF TECHNOLOGY：Airborne Particle Counters
• NEW AND NOTABLE PRODUCTS：Class 2 Sound Level Meter NL-28
• TALES OF RION：Visualizing the Effects of Hearing Aids
• IN THE BACKYARD：Behind the Scenes in Developing an AI-Powered System for Assisting Pass/Fail Judgments
• ACTIVITY：Rion’s Activity Report
• OUR FAVORITE TOWN, KOKUBUNJI : The Charms of Nature
• FROM OVERSEAS：Taiwan
• EPILOGUE SCIENCE, SCIENCE!：The Theory of Mie Scattering

Cover Art : Liquid-borne particle counter

This instrument, which allows us to peer into the invisible world of particles, appears to quietly reveal secrets hidden within the liquid. By showing the front view on the front cover and the intricate mechanics on the back cover, I aimed to convey the instrument's serene, detached demeanor—as though it were calmly observing and manipulating the unseen world in pursuit of truth. What lies behind the act of measurement is a never-ending quest for certainty, something that can’t be perceived by the human eye. I created this artwork while reflecting on the kindness and integrity that humans imbue in the technologies they develop—qualities I sense in this quietly operating instrument.

By Yusuke Kitajima (woodblock artist)