Koji Okamoto - Publications, H-index & Citations

Koji Okamoto

The University of Tokyo

40H指数

992论文数

9.1K被引数

收录论文 71

发表时间

Physics-interpretable symbolic regression for critical heat flux prediction using a wide-range experimental database 使用广泛的实验数据库进行临界热通量预测的物理可解释符号回归

International Journal of Heat and Mass Transfer

IF5.8

2026-09-09

PREAI

Wufeng Zheng; Yankuan Li; Weiyi Yao; Kunjie Chen; Zikun Chen; Kai Wang; Ryo Yokoyama; Shuichiro Miwa; Koji Okamoto

A particle-based method for fine granular flow and degradation analysis with an elastic–perfectly plastic Drucker–Prager law 一种基于粒子的细观颗粒流与降解分析方法，该方法采用弹性-理想塑性Drucker–Prager本构定律。

Powder Technology

IF4.6

2025-11-17

PREAI

Ryo Yokoyama; Kai Wang; Tomonari Mashiko; Yusuke Yamazaki; Shuichiro Miwa; Koji Okamoto

Experimental and numerical analysis of boron diffusion in eutectic melt under uniform radiative heating of B4C-SS control rod composites 在B4C-SS控制棒复合材料的均匀辐射加热下，共晶熔体中硼扩散的实验与数值分析

International Communications in Heat and Mass Transfer

IF6.4

2025-11-07

PREAI

Zeeshan Ahmed; Ravinder Kumar; Avadhesh Kumar Sharma; Ruicong Xu; Ryo Yokoyama; Yosuke Nishimura; Walter Villanueva; Hidemasa Yamano; Marco Pellegrini; Koji Okamoto

Development of LASSO based optimized scheme for reconstructing radioactive source distributions using monitoring air dose rates 基于监测空气剂量率重建放射性源分布的LASSO优化方案开发

Measurement

IF5.6

2025-10-24

PREAI

Wei Shi; Masahiko Machida; Susumu Yamada; Koji Okamoto

Schlieren-Based Visualization of Acoustic Fields in Lined Ducts

AIAA JOURNAL

IF2.8

2025-10-01

PREAI

Murata, Yo; Izumi, Keishi; Tanaka, Koki; Daiguji, Hirofumi; Oki, Junichi; Ishii, Tatsuya; Oinuma, Hideshi; Okamoto, Koji; Akamine, Masahito

Uncertainty analysis of the inverse LASSO estimation scheme on radioactive source distributions inside reactor building rooms from air does rate measurements 从空气剂量率测量中反演反应堆建筑房间内放射性源分布的反向LASSO估计方案的Uncertainty分析

PROGRESS IN NUCLEAR ENERGY

IF3.2

2025-06-01

PREAI

Shi, Wei; Machida, Masahiko; Yamada, Susumu; Okamoto, Koji

Determination of Spearman's rank correlation for melt spreading-solidification dynamics through the combination of integrated experiments and Monte Carlo method

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER

IF5.8

2025-06-01

PREAI

Yokoyama, Ryo; Wang, Kai; Suzuki, Shunichi; Miwa, Shuichiro; Okamoto, Koji

Review of Micro-Engines Utilizing Unsteady Wave Compression 微发动机利用非定常波压缩的综述

ENERGIES

IF3.2

2025-03-13

OAAI

Okamoto, Koji; Nagashima, Toshio; Piechna, Janusz

Performance evaluation of flow boiling CHF correlations in short-heated channel 短加热通道中流动沸腾CHF相关性的性能评估

PROGRESS IN NUCLEAR ENERGY

IF3.2

2025-03-01

PREAI

Gesmier, Guillaume; Wang, Shixian; Miwa, Shuichiro; Okamoto, Koji

Multi-Microseconds Microbubbles Induced by Nanoseconds Pulsed-Laser Heating of Gold Nano-Particles

ACS OMEGA

IF4.3

2025-02-21

OAAI

Allaf, Mohammad Amer; Okamoto, Koji; Owa, Takuto

A novel fully explicit GPU-accelerated discrete element method coupled with moving particle hydrodynamics (DEM-MPH) for simulating the underwater particle sedimentation behavior

PROGRESS IN NUCLEAR ENERGY

IF3.2

2025-02-01

OAAI

Yokoyama, Ryo; Xu, Yihua; Miwa, Shuichiro; Okamoto, Koji

A dynamic characteristic on the boiling crisis in downward facing flow boiling, Part II: Model development and validation

INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER

IF6.4

2025-01-01

OAAI

Wang, Shixian; Wang, Kai; Zeng, Chen; Miwa, Shuichiro; Okamoto, Koji

Development of advanced AI-based segmentation and prediction method for air entrainment in plunging water jets

PROGRESS IN NUCLEAR ENERGY

IF3.2

2024-12-01

OAAI

Zhou, Wen; Miwa, Shuichiro; Yamashita, Susumu; Okamoto, Koji

A dynamic characteristics on the boiling crisis in downward facing flow boiling, part I: Motion of the CHF front and factors investigation

INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER

IF6.4

2024-12-01

PREAI

Wang, Shixian; Wang, Kai; Miwa, Shuichiro; Chen, Taishan; Okamoto, Koji

Assessment of the state-of-the-art AI methods for critical heat flux prediction 评估用于临界热通量预测的最新AI方法

INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER

IF6.4

2024-11-01

OAAI

Zhou, Wen; Miwa, Shuichiro; Wang, Hanyu; Okamoto, Koji

Self-adaptive and time divide-and-conquer physics-informed neural networks for two-phase flow simulations using interface tracking methods

PHYSICS OF FLUIDS

IF4.3

2024-07-02

PREAI

Zhou, Wen; Miwa, Shuichiro; Okamoto, Koji

Study on the difference between B4C powder and B4C pellet regarding the eutectic reaction with stainless steel

PROGRESS IN NUCLEAR ENERGY

IF3.2

2024-06-01

PREAI

Hong, Zhenhan; Ahmed, Zeeshan; Pellegrini, Marco; Yamano, Hidemasa; Erkan, Nejdet; Sharma, Avadhesh Kumar; Okamoto, Koji

Modeling passive/active transition in high-temperature dry oxidation of reaction-sintered SiC for innovative fuel matrix in high-temperature gas-cooled reactors

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY

IF6.2

2024-05-01

PREAI

Nishimura, Yosuke; Gubarevich, Anna; Yoshida, Katsumi; Sharma, Avadhesh Kumar; Okamoto, Koji

Bubble feature extraction in subcooled flow boiling using AI-based object detection and tracking techniques

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER

IF5.8

2024-05-01

PREAI

Zhou, Wen; Miwa, Shuichiro; Tsujimura, Ryoma; Nguyen, Thanh-Binh; Okawa, Tomio; Okamoto, Koji

Eutectic melting and relocation behavior of B4C pellet-stainless steel under radiative heating

CERAMICS INTERNATIONAL

IF5.6

2024-05-01

PREAI

Ahmed, Zeeshan; Sharma, Avadhesh Kumar; Pellegrini, Marco; Yamano, Hidemasa; Kano, Sho; Okamoto, Koji

研究方向