Tue., June 23, 2026 16:20-17:50
Onsite & Online Hybrid

Engineering 109 Lecture Room, Higashi-Hiroshima Campus, Hiroshima University
　※Please note that the venue is different from the usual one.

If you are online, you need to apply.

Commentary: Yukihiko MATSUMURA
Professor, Graduate School of Advanced Science and Engineering, Hiroshima University

Lecture: ROBBANI, Muhammad Haqqiyuddin
D2, Graduate School of Advanced Science and Engineering, Hiroshima University
“Hydrothermal carbonization of palm residue”

Utilizing unused palm residues as fuel through carbonization is significant from the perspective of energy recovery from unused waste. However, conventional high-temperature carbonization is difficult due to their high moisture content. Therefore, this study investigated hydrothermal carbonization, which involves carbonization within high-temperature, high-pressure water. Various palm residues were subjected to hydrothermal treatment, and their reaction characteristics were confirmed. This report details those findings.

Lecture: Somar ACHI
M2, Graduate School of Advanced Science and Engineering, Hiroshima University
“Evaluating the potential of olive pomace as a biomass energy source: a case study in Japan”

This study evaluates the potential of olive pomace pellets as a biomass energy source in Japan, focusing on Shōdoshima Island. Using mixed methods, qualitative interviews were conducted with the Kagawa Prefectural Olive Research Institute and the municipal Olive Division, while quantitative data were collected from 251 respondents through KoBoToolbox. Chi-square, correlation, regression, and AMCE analyses were applied. Results show that awareness differs significantly by occupation and is positively related to willingness to use olive-pomace pellets. Awareness, trust in government incentives, health certification, JIS certification, and price strongly influence acceptance, while sales point has limited effect. The findings highlight the importance of certification and awareness-building.

Lecture: Jun TOMINAGA
Associate Professor, Graduate School of Integrated Sciences for Life, Hiroshima University
“Listening to the "Voice of Plants": Social Implementation of Wearable Plant Sensors and a COI-NEXT Vision”

Photosynthesis and transpiration, central to plant growth, have long been studied through non-destructive gas exchange measurement. However, conventional instruments are bulky and expensive, limiting their use in the field. We have developed a wearable plant sensor based on an original measurement principle that simply attaches to a leaf and measures photosynthesis and transpiration in real time, at a fraction of the cost of existing systems and without calibration. This talk introduces the sensor's features and our efforts toward social implementation, as well as our concept for a COI-NEXT proposal that uses plant sensing to build a climate-resilient primary industry in mountainous rural regions.

Chair: Yukihiko MATSUMURA
Professor, Graduate School of Advanced Science and Engineering, Hiroshima University

Please post the following 5 items (1-4 are required) in the email, write "I would like to participate in the evening seminar" in the subject line, and send it to bprc@hiroshima-u.ac.jp.

１．Participation Seminar：Tue., June. 23, 2026. 128th Hiroshima University Biomass Evening Seminar
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