Akimasa Hirata

Publication Activity (10 Years)

Years Active: 2001-2024
Publications (10 Years): 54

Top Topics

Top Venues

Comput. Biol. Medicine

Publications

Akimasa Hirata, Yusuke Akazawa, Sachiko Kodera, Naofumi Otsuru, Ilkka Laakso
Electric field envelope focality in superficial brain areas with linear alignment montage in temporal interference stimulation. Comput. Biol. Medicine 178 (2024)
Cheng Tang, Yuki Todo, Sachiko Kodera, Rong Sun, Atsushi Shimada, Akimasa Hirata
A novel multivariate time series forecasting dendritic neuron model for COVID-19 pandemic transmission tendency. Neural Networks 179 (2024)
Kun Li, Sachiko Kodera, Dragan Poljak, Yinliang Diao, Kensuke Sasaki, Shuai Zhang, Ming Yao, Ante Lojic Kapetanovic, Congsheng Li, Tongning Wu, Thorsten Liebig, Winfried Simon, Akimasa Hirata
Spatially Averaged Epithelial/Absorbed Power Density for Nonplanar Skin Models Exposed to Antenna at 10-90 GHz. IEEE Access 12 (2024)
Cheng Tang, Junkai Ji, Yuki Todo, Atsushi Shimada, Weiping Ding, Akimasa Hirata
Dendritic Neural Network: A Novel Extension of Dendritic Neuron Model. IEEE Trans. Emerg. Top. Comput. Intell. 8 (3) (2024)
Yinliang Diao, Essam A. Rashed, Luca Giaccone, Ilkka Laakso, Congsheng Li, Riccardo Scorretti, Yoichi Sekiba, Kenichi Yamazaki, Akimasa Hirata
Intercomparison of the Averaged Induced Electric Field in Learning-Based Human Head Models Exposed to Low-Frequency Magnetic Fields. IEEE Access 11 (2023)
Essam A. Rashed, Mohammad al-Shatouri, Ilkka Laakso, Akimasa Hirata
SHARM: Segmented Head Anatomical Reference Models. CoRR (2023)
Chun-Ren Phang, Akimasa Hirata
Multiagent Copilot Approach for Shared Autonomy between Human EEG and TD3 Deep Reinforcement Learning. CoRR (2023)
Xianyi Duan, Junqing Lan, Sachiko Kodera, Jens Kirchner, Georg Fischer, Akimasa Hirata
Wireless Power Transfer Systems With Composite Cores for Magnetic Field Shielding With Electric Vehicles. IEEE Access 11 (2023)
Yoichi Sekiba, Sachiko Kodera, Kenichi Yamazaki, Akimasa Hirata
Calculation of Electric Field Induced in the Human Body for Simultaneous Exposure to Spatially Uniform ELF Electric and Magnetic Fields With a Phase Difference. IEEE Access 11 (2023)
Kun Li, Sachiko Kodera, Dragan Poljak, Yinliang Diao, Kensuke Sasaki, Anna Susnjara, Alexander Prokop, Kenji Taguchi, Jingtian Xi, Shuai Zhang, Ming Yao, Giulia Sacco, Maxim Zhadobov, Walid El Hajj, Akimasa Hirata
Calculated Epithelial/Absorbed Power Density for Exposure From Antennas at 10-90 GHz: Intercomparison Study Using a Planar Skin Model. IEEE Access 11 (2023)
Essam A. Rashed, Sachiko Kodera, Akimasa Hirata
COVID-19 forecasting using new viral variants and vaccination effectiveness models. Comput. Biol. Medicine 149 (2022)
Essam A. Rashed, Sachiko Kodera, Akimasa Hirata
COVID-19 Status Forecasting Using New Viral variants and Vaccination Effectiveness Models. CoRR (2022)
Akito Takada, Sachiko Kodera, Hiroyoshi Togo, Masashi Shimizu, Hideyuki Niwa, Takayuki Ishikura, Hideto Tanaka, Takashi Kawahara, Akimasa Hirata
Computed and Measured Core Temperature of Patients With Heatstroke Transported From Their Homes via Ambulance. IEEE Access 10 (2022)
Akimasa Hirata, Sachiko Kodera, Yinliang Diao, Essam A. Rashed
Did the Tokyo Olympic Games enhance the transmission of COVID-19? An interpretation with machine learning. Comput. Biol. Medicine 146 (2022)
Norika Miura, Sachiko Kodera, Yinliang Diao, Junji Higashiyama, Yasunori Suzuki, Akimasa Hirata
Power Absorption and Skin Temperature Rise From Simultaneous Near-Field Exposure at 2 and 28 GHz. IEEE Access 9 (2021)
Essam A. Rashed, Sachiko Kodera, Hidenobu Shirakami, Ryotetsu Kawaguchi, Kazuhiro Watanabe, Akimasa Hirata
Knowledge discovery from emergency ambulance dispatch during COVID-19: A case study of Nagoya City, Japan. J. Biomed. Informatics 117 (2021)
Essam A. Rashed, Sachiko Kodera, Hidenobu Shirakami, Ryotetsu Kawaguchi, Kazuhiro Watanabe, Akimasa Hirata
Knowledge discovery from emergency ambulance dispatch during COVID-19: A case study of Nagoya City, Japan. CoRR (2021)
Kun Li, Yinliang Diao, Kensuke Sasaki, Alexander Prokop, Dragan Poljak, Vicko Doric, Jingtian Xi, Sachiko Kodera, Akimasa Hirata, Walid El Hajj
Intercomparison of Calculated Incident Power Density and Temperature Rise for Exposure From Different Antennas at 10-90 GHz. IEEE Access 9 (2021)
Yuki Nakano, Essam A. Rashed, Tatsuhito Nakane, Ilkka Laakso, Akimasa Hirata
ECG Localization Method Based on Volume Conductor Model and Kalman Filtering. Sensors 21 (13) (2021)
Yinliang Diao, Akimasa Hirata
Assessment of mmWave Exposure From Antenna Based on Transformation of Spherical Wave Expansion to Plane Wave Expansion. IEEE Access 9 (2021)
Akimasa Hirata, Taiki Miyazawa, Ryota Uematsu, Sachiko Kodera, Yuki Hashimoto, Kazuhiko Takagahara, Yuichi Higuchi, Hiroyoshi Togo, Takashi Kawahara, Hideto Tanaka
Body Core Temperature Estimation Using New Compartment Model With Vital Data From Wearable Devices. IEEE Access 9 (2021)
Essam A. Rashed, José Gómez-Tames, Akimasa Hirata
Influence of segmentation accuracy in structural MR head scans on electric field computation for TMS and tES. CoRR (2020)
Taiki Murakawa, Yinliang Diao, Essam A. Rashed, Sachiko Kodera, Yoshihiro Tanaka, Yoshitsugu Kamimura, Shin Kitamura, Shintaro Uehara, Yohei Otaka, Akimasa Hirata
Evaluation of SAR and Temperature Rise in Human Hand Due to Contact Current From 100 kHz to 100 MHz. IEEE Access 8 (2020)
Sachiko Kodera, Essam A. Rashed, Akimasa Hirata
Correlation between COVID-19 morbidity and mortality rates in Japan and local population density, temperature and absolute humidity. CoRR (2020)
Kenneth R. Foster, Marvin C. Ziskin, Quirino Balzano, Akimasa Hirata
Transient Thermal Responses of Skin to Pulsed Millimeter Waves. IEEE Access 8 (2020)
Sachiko Kodera, Akimasa Hirata, Fumiaki Miura, Essam A. Rashed, Natsuko Hatsusaka, Naoki Yamamoto, Eri Kubo, Hiroshi Sasaki
Model-based approach for analyzing prevalence of nuclear cataracts in elderly residents. Comput. Biol. Medicine 126 (2020)
Akimasa Hirata, Sachiko Kodera, José Gómez-Tames, Essam A. Rashed
Influence of Absolute Humidity and Population Density on COVID-19 Spread and Decay Durations: Multi-prefecture Study in Japan. CoRR (2020)
Essam A. Rashed, José Gómez-Tames, Akimasa Hirata
Development of accurate human head models for personalized electromagnetic dosimetry using deep learning. CoRR (2020)
Sachiko Kodera, Akimasa Hirata, Fumiaki Miura, Essam A. Rashed, Natsuko Hatsusaka, Naoki Yamamoto, Eri Kubo, Hiroshi Sasaki
Model-based approach for analyzing prevalence of nuclear cataracts in elderly residents. CoRR (2020)
Essam A. Rashed, José Gómez-Tames, Akimasa Hirata
End-to-end semantic segmentation of personalized deep brain structures for non-invasive brain stimulation. CoRR (2020)
Yinliang Diao, Essam A. Rashed, Akimasa Hirata
Large-Scale Analysis of the Head Proximity Effects on Antenna Performance Using Machine Learning Based Models. IEEE Access 8 (2020)
Essam A. Rashed, José Gómez-Tames, Akimasa Hirata
Deep Learning-Based Development of Personalized Human Head Model With Non-Uniform Conductivity for Brain Stimulation. IEEE Trans. Medical Imaging 39 (7) (2020)
Takuma Nakae, Daisuke Funahashi, Junji Higashiyama, Teruo Onishi, Akimasa Hirata
Skin Temperature Elevation for Incident Power Densities From Dipole Arrays at 28 Ghz. IEEE Access 8 (2020)
Sachiko Kodera, Toshiki Kamiya, Taiki Miyazawa, Akimasa Hirata
Correlation Between Estimated Thermoregulatory Responses and Pacing in Athletes During Marathon. IEEE Access 8 (2020)
Essam A. Rashed, José Gómez-Tames, Akimasa Hirata
End-to-end semantic segmentation of personalized deep brain structures for non-invasive brain stimulation. Neural Networks 125 (2020)
Tatsuhito Nakane, Takahiro Ito, Nobuaki Matsuura, Hiroyoshi Togo, Akimasa Hirata
Forward Electrocardiogram Modeling by Small Dipoles Based on Whole-Body Electric Field Analysis. IEEE Access 7 (2019)
José Gómez-Tames, Akimasa Hirata, Manabu Tamura, Yoshihiro Muragaki
Corticomotoneuronal Model for Intraoperative Neurophysiological Monitoring During Direct Brain Stimulation. Int. J. Neural Syst. 29 (1) (2019)
Essam A. Rashed, Yinliang Diao, Akimasa Hirata
Learning-based estimation of dielectric properties and tissue density in head models for personalized radio-frequency dosimetry. CoRR (2019)
Essam A. Rashed, José Gómez-Tames, Akimasa Hirata
Human Head Skin Thickness Modeling for Electromagnetic Dosimetry. IEEE Access 7 (2019)
William H. Bailey, Tim Harrington, Akimasa Hirata, Robert Kavet, Jafar Keshvari, Bertram Jon Klauenberg, Alexandre Legros, David P. Maxson, John M. Osepchuk, J. Patrick Reilly, Richard R. I. C. A. Tell, Ralf Bodemann, Artnarong Thansandote, Kenichi Yamazaki, Marvin C. Ziskin, Peter M. Zollman, Jerrold Bushberg, Chung-Kwang Chou, Robert Cleveland, Antonio Faraone, Kenneth R. Foster, Kenneth E. Gettman, Kevin Graf
Synopsis of IEEE Std C95.1™-2019 "IEEE Standard for Safety Levels With Respect to Human Exposure to Electric, Magnetic, and Electromagnetic Fields, 0 Hz to 300 GHz". IEEE Access 7 (2019)
Yinliang Diao, José Gómez-Tames, Essam A. Rashed, Robert Kavet, Akimasa Hirata
Spatial Averaging Schemes of In Situ Electric Field for Low-Frequency Magnetic Field Exposures. IEEE Access 7 (2019)
Essam A. Rashed, José Gómez-Tames, Akimasa Hirata
Generation of Head Models for Brain Stimulation Using Deep Convolution Networks. ICIP (2019)
Essam A. Rashed, José Gómez-Tames, Akimasa Hirata
Non-Uniform Conductivity Estimation for Personalized Brain Stimulation using Deep Learning. CoRR (2019)
Essam A. Rashed, José Gómez-Tames, Akimasa Hirata
Development of accurate human head models for personalized electromagnetic dosimetry using deep learning. NeuroImage 202 (2019)
Akimasa Hirata, Daisuke Funahashi, Sachiko Kodera
Setting exposure guidelines and product safety standards for radio-frequency exposure at frequencies above 6 GHz: brief review. Ann. des Télécommunications 74 (1-2) (2019)
Kenji Taguchi, Ilkka Laakso, Katsuaki Aga, Akimasa Hirata, Yinliang Diao, Jerdvisanop Chakarothai, Tatsuya Kashiwa
Relationship of External Field Strength With Local and Whole-Body Averaged Specific Absorption Rates in Anatomical Human Models. IEEE Access 6 (2018)
Daisuke Funahashi, Akimasa Hirata, Sachiko Kodera, Kenneth R. Foster
Area-Averaged Transmitted Power Density at Skin Surface as Metric to Estimate Surface Temperature Elevation. IEEE Access 6 (2018)
Katsuaki Aga, Akimasa Hirata, Ilkka Laakso, Hiroo Tarao, Yinliang Diao, Takahiro Ito, Yoichi Sekiba, Kenichi Yamazaki
Intercomparison of In Situ Electric Fields in Human Models Exposed to Spatially Uniform Magnetic Fields. IEEE Access 6 (2018)
Sachiko Kodera, Akimasa Hirata, Daisuke Funahashi, Soichi Watanabe, Kari Jokela, Rodney J. Croft
Temperature Rise for Brief Radio-Frequency Exposure Below 6 GHz. IEEE Access 6 (2018)
Daisuke Funahashi, Takahiro Ito, Akimasa Hirata, Takahiro Iyama, Teruo Onishi
Averaging Area of Incident Power Density for Human Exposure from Patch Antenna Arrays. IEICE Trans. Electron. (8) (2018)
Kazuya Kojima, Akimasa Hirata, Kazuma Hasegawa, Sachiko Kodera, Ilkka Laakso, Daisuke Sasaki, Takeshi Yamashita, Ryusuke Egawa, Yuka Horie, Nanako Yazaki, Saeri Kowata, Kenji Taguchi, Tatsuya Kashiwa
Risk Management of Heatstroke Based on Fast Computation of Temperature and Water Loss Using Weather Data for Exposure to Ambient Heat and Solar Radiation. IEEE Access 6 (2018)
Shinta Aonuma, José Gómez-Tames, Ilkka Laakso, Akimasa Hirata, Tomokazu Takakura, Manabu Tamura, Yoshihiro Muragaki
A high-resolution computational localization method for transcranial magnetic stimulation mapping. NeuroImage 172 (2018)
Kenneth R. Foster, Marvin C. Ziskin, Quirino Balzano, Akimasa Hirata
Thermal Analysis of Averaging Times in Radio-Frequency Exposure Limits Above 1 GHz. IEEE Access 6 (2018)
Ilkka Laakso, Satoshi Tanaka, Marko Mikkonen, Soichiro Koyama, Norihiro Sadato, Akimasa Hirata
Electric fields of motor and frontal tDCS in a standard brain space: A computer simulation study. NeuroImage 137 (2016)
Ilkka Laakso, Takuya Shimamoto, Akimasa Hirata, Mauro Feliziani
Quasistatic Approximation for Exposure Assessment of Wireless Power Transfer. IEICE Trans. Commun. (7) (2015)
Satoshi Ishihara, Teruo Onishi, Akimasa Hirata
Magnetic Field Measurement for Human Exposure Assessment near Wireless Power Transfer Systems in Kilohertz and Megahertz Bands. IEICE Trans. Commun. (12) (2015)
Akimasa Hirata, Yuri Ishii, Tomoki Nomura, Ilkka Laakso
Computation of temperature elevation in fetus due to radio-frequency exposure with a new thermal modeling. EMBC (2013)
Kensuke Sasaki, Masami Kojima, Kanako Wake, Soichi Watanabe, Yukihisa Suzuki, Akimasa Hirata
A numerical analysis of temperature elevation in a rabbit ocular with localized and uniformed exposure conditions at 60 GHz. ISABEL (2011)
Akimasa Hirata, Yukinori Takano, Toshihiro Nagai
Quasi-Static FDTD Method for Dosimetry in Human due to Contact Current. IEICE Trans. Electron. (1) (2010)
Teruo Onishi, Takahiro Iyama, Lira Hamada, Soichi Watanabe, Akimasa Hirata
Evaluation of SAR and Temperature Elevation Using Japanese Anatomical Human Models for Body-Worn Devices. IEICE Trans. Commun. (12) (2010)
Akimasa Hirata, Masami Kojima, Hiroki Kawai, Yoko Yamashiro, Soichi Watanabe, Kazuyuki Sasaki, Osamu Fujiwara
Acute Dosimetry and Estimation of Threshold-Inducing Behavioral Signs of Thermal Stress in Rabbits at 2.45-GHz Microwave Exposure. IEEE Trans. Biomed. Eng. 57 (5) (2010)
Akimasa Hirata
Improved Heat Transfer Modeling of the Eye for Electromagnetic Wave Exposures. IEEE Trans. Biomed. Eng. 54 (5) (2007)
Akimasa Hirata, Osamu Fujiwara, Toshiyuki Shiozawa
Correlation Between Peak Spatial-Average SAR and Temperature Increase Due to Antennas Attached to Human Trunk. IEEE Trans. Biomed. Eng. 53 (8) (2006)
Akimasa Hirata, Krzysztof Caputa, Trevor W. Dawson, Maria A. Stuchly
Dosimetry in models of child and adult for low-frequency electric field. IEEE Trans. Biomed. Eng. 48 (9) (2001)