Advanced Physical Sorting Research Team

Journal papers / reviews

2025

• Takao UEDA：Efficient Ball Mill Media Shape Design Using Spherical Harmonic Hunctions, Minerals Engineering, 236(1), 109912, Feb-2026 
• Takao UEDA：3D Particle Shape Estimation Without Pre-training or Prior Models, Powder Technology, 461, 121109, Jul-2025

2024

• Natsuo OKADA, Narihiro OWADA, Kaito TAKIZAWA, Brian Bino SINAICE, Okhala MUACANHIA, Angesom GEBRETSADIK, Shunki TANAKA, Kosei AIKAWA, Ilhwan PARK, Mayumi ITO, Yoko OHTOMO, Youhei KAWAMURA: APiS (AI Powered intelligence Spectrum Analyser): Hyperspectral Imaging Machine Learning Analyser App for Mineral Processing, International Journal of Mining, Reclamation and Environment, Oct-2024
• Yuto SAKAI, Ratul Kumar SHIL, Masaru ENDO, Moe MARUMOTO, Keisuke NAKAKUBO, M Mehedi Hasan ROCKY,Kuo H WONG, Asami S MASHIO and Hiroshi HASEGAWA: Rapid Arsenate Removal using Novel Adsorbent:Iron–Zirconium Nanoneedle-modified Cellulose Nanofibers,Colloids and Surfaces A: Physicochemical and Engineering Aspects, 686, 133290, Apr-2024
• Shigeki KOYANAKA and Kenichiro KOBAYASHI: Individual Model Identification of Waste Digital Devices by the Combination of CNN-Based Image Recognition and Measured Values of Mass and 3D Shape Features, Journal of Material Cycles and Waste Management, 26, 2214-2225, Apr-2024

2023

• Takao UEDA, Shigeki KOYANAKA and Tatsuya OKI: In-Line Sorting System with Battery Detection Capabilities in E-Waste Using Combination of X-Ray Transmission Scanning and Deep Learning, Resources, Conservation & Recycling, 201, 107345, Feb-2024
• Takao UEDA, Hideaki FUKUSAWA, Yukimi NAKAGAWA, Kazuya NAGANO, Naoki SUNAHARA, Hiroshi YAMADA, Junichi FUJISAWA, Makoto YAMADA, Shigeki KOYANAKA, Tatsuya OKI: Automatic High-Speed Smartphone Disassembly System, Journal of Cleaner Production, 434, 139928, Jan-2024
• Keisuke NAKAKUBO, Foni B. BISWAS, Tsuyoshi TANIGUCHI, Masaru ENDO, Yuto SAKAI, Kuo H. WONG, Asami S. MASHIO, Tatsuya NISHIMURA, Katsuhiro MAEDA, Hiroshi HASEGAWA: Insight into Stability of Dithiocarbamate-modified Adsorbents: Oxidation of Dithiocarbamate, Chemosphere, 343, 140216, Dec-2023

2022

• Shigeki KOYANAKA and Kenichiro KOBAYASHI: Sensor-based Sorting of Waste Digital Devices by CNN-based Image Recognition Using Composite Images Created from Mass and 2D/3D Appearances, Journal of Material Cycles and Waste Management, 25, 851-862, Mar-2023  
• Jun KATAGIRI, Shigeki KOYANAKA, Naohito HAYASHI and Takao UEDA: Optimum Design Using Genetic Algorithm and Discrete-element Method: Application to Vibration Feeder Design for E-waste Recycling Automation, Resources Processing , 69, 131-141, Feb-2023
• Takuya KIYOKAWA, Jun TAKAMATSU and Shigeki KOYANAKA : Challenges for Future Robotic Sorters of Mixed Industrial Waste: A Survey, IEEE Transactions on Automation Science and Engineering , online published 
• Takao UEDA: Reproducibility of the Repose Angle, Porosity, and Coordination Number of Particles Generated by Spherical Harmonic-based Principal Component Analysis Using Discrete Element Simulation, Powder Technology, 415, 118143, Feb-2023
• Takao UEDA: Applicable Scope of Estimation of Three-dimensional Particle Size Distribution by the Goldsmith-Cruz-Orive and Improved Methods, Powder Technology, 404, 117462, May-2022
• Takao UEDA: Estimation of Three-dimensional Particle Size and Shape Characteristics Using a Modified 2D–3D Conversion Method Employing Spherical Harmonic-based Principal Component Analysis, Powder Technology, 404, 117461, May-2022
• Naohito HAYASHI, Shigeki KOYANAYA and Tatsuya OKI : Verification of Algorithm for Automatic Detection of Electronic Devices Mounted on Waste Printed Circuit Boards, Journal of the Air & Waste Management Association, 72 (5), 420-433, Apr-2022

2021

• Takao UEDA and Tatsuya OKI: A Simulation-based Stereological Correction Method for Assessment of Volumetric Liberation and Surface Exposure of Ore Particles, Minerals Engineering, 176, 107327, Jan-2022
• Takao UEDA, Hideaki FUKUSAWA, Naoki SUNAHARA, Hiroshi YAMADA, Tatsuya OKI and Shigeki KOYANAKA: Design-of-Experiment Analysis of Non-destructive Detachment of Electric Parts from Printed Circuit Boards of Mobile Phones Using a Cross-flow Shredder, Waste Management, 134, 52-56, Oct-2021
• Takao UEDA, Jun KATAGIRI, Tatsuya OKI and Shigeki KOYANAKA: Genetic Algorithm Optimization in Discrete Element Simulation of Electric Parts Separation from Printed Circuit Board, Structural and Multidisciplinary Optimization, 64, 2763-2771, Oct-2021
• Takao UEDA: An Improved Goldsmith-Cruz-Orive Method for Estimation of Spherical Size Distribution from Sectional Size Distribution, Suitable for Arbitrary Size Classes, Powder Technology, 388, 412-417, May-2021
• Jun KATAGIRI, Takao UEDA, Naohito HAYASHI and Shigeki KOYANAKA: Genetic Algorithm Based Automatic Input Parameter Calibration Method for the Discrete Element Modeling of Vibration Feeders , Materials Transactions, 62 (4), 551-556, Apr-2021

Conference presentations

2025

• Kosei AIKAWA, Sota KIMURA, Yohei SAKANISHI, Ilhwan PARK, Mayumi ITO：Evaluating the Applicability of Conventional Bubble Generators to Flotation for Waste Products Recycling: a Bubble Size Distribution Perspective 14th International Conference on Geo-resources Engineering and Earth Sciences（Cahiang Mai, Tahiland）, Dec-2025 
• Kosei AIKAWA, Yohei SAKANISHI, Sota KIMURA, Ilhwan PARK, Mayumi ITO：Effects of Galvanic Interactions on the Flotation Behavior of Metal Particles in Waste Recycling 14th International Conference on Geo-resources Engineering and Earth Sciences（Cahiang Mai, Tahiland）, Dec-2025 

2024

• Taisei TAKEUCHI, Kosei AIKAWA, Ilhwan PARK, Syunnichi KITAOKA, Shigeru KAWAMURA, Mayumi ITO: Substitution of Automobile Shredder Residue (ASR) for Coal in Smelting Furnace Fuel: Application of Jig Separation for the Removal of Glass and Metallic Components from ASR, 2024 International Conference on Resource Sustainability (Bangkok, Thailand), Nov-2024
• Kosei AIKAWA, Shunki TANAKA, Sanghee JEON, Ilhwan PARK, Naoki HIROYOSHI, Mayumi ITO: Depression of Sphalerite in Flotation of Complex Sulfide Ores by Extracting Anglesite as a Pretreatment of Flotation, XXXI IMPC-International Mineral Processing Congress  (Washington D,C., U.S.A.), Oct-2024
• Hidekazu MATSUOKA, Jacqueline V. SATUR, Hiromichi MASTUMOTO, Kohei MITSUHASHI, Kosei AIKAWA, Ilhwan PARK, Mayumi ITO, Naoki HIROYOSHI: Investigation of Flotation Kinetics of Agglomerated Fine Copper Minerals in Continuous Column Flotation Tests, XXXI IMPC-International Mineral Processing Congress (Washington D,C., U.S.A.), Oct-2024
• Keisuke NAKAKUBO, Shunsuke TAKA, Kuo. H. WONG, Asami S. MASHIO, Tsuyoshi TANIGUCHI, Tatsuya NISHIMURA, Katsuhiro MAEDA, Hiroshi HASEGAWA: Chemically modified cellulose for efficient recovery of gold, WasteEng2024 (Sendai, Japan), Aug-2024

2021

• Naohito HAYASHI, Shigeki KOYANAKA and Tatsuya OKI: Detection Algorithm by Contituous Image Processing of Electic Devices Mounted on Waste Printed Circuit Boards, 8th Asian Particle Techonology Symposium (APT2021)（online）, Oct-2021
• Takuya KIYOKAWA, Hiroki KAYAYAMA, Jun TAKAMATSU, Shigeki KOYANAKA and Tsukasa OGASAWARA: Robotic Image Dataset Collection System Accomplished by Domain Adaptation for Robotic Waste Sorter, IEEE International Conference on Automation Science and Engineering (CASE2021)（online）, Aug-2021