Works matching AU Hirata, Akimasa

Results: 56

Dominant factors influencing whole-body average SAR due to far-field exposure in whole-body resonance frequency and GHz regions.

Published in:

Bioelectromagnetics, 2007, v. 28, n. 6, p. 484, doi. 10.1002/bem.20335

By:

Hirata, Akimasa;
Kodera, Sachiko;
Wang, Jianqing;
Fujiwara, Osamu

Publication type:

Article

Computational verification of anesthesia effect on temperature variations in rabbit eyes exposed to 2.45 GHz microwave energy.

Published in:

Bioelectromagnetics, 2006, v. 27, n. 8, p. 602, doi. 10.1002/bem.20251

By:

Hirata, Akimasa;
Watanabe, Soichi;
Kojima, Masami;
Hata, Ikuho;
Wake, Kanako;
Taki, Masao;
Sasaki, Kazuyuki;
Fujiwara, Osamu;
Shiozawa, Toshiyuki

Publication type:

Article

Can electric fields explain inter-individual variability in transcranial direct current stimulation of the motor cortex?

Published in:

Scientific Reports, 2019, v. 9, n. 1, p. 1, doi. 10.1038/s41598-018-37226-x

By:

Laakso, Ilkka;
Mikkonen, Marko;
Koyama, Soichiro;
Hirata, Akimasa;
Tanaka, Satoshi

Publication type:

Article

Mapping Brain Motor Functions Using Transcranial Magnetic Stimulation with a Volume Conductor Model and Electrophysiological Experiments.

Published in:

Brain Sciences (2076-3425), 2023, v. 13, n. 1, p. 116, doi. 10.3390/brainsci13010116

By:

Hikita, Keigo;
Gomez-Tames, Jose;
Hirata, Akimasa

Publication type:

Article

Nonequivalent After-Effects of Alternating Current Stimulation on Motor Cortex Oscillation and Inhibition: Simulation and Experimental Study.

Published in:

Brain Sciences (2076-3425), 2022, v. 12, n. 2, p. 195, doi. 10.3390/brainsci12020195

By:

Suzuki, Makoto;
Tanaka, Satoshi;
Gomez-Tames, Jose;
Okabe, Takuhiro;
Cho, Kilchoon;
Iso, Naoki;
Hirata, Akimasa

Publication type:

Article

Computation of Temperature Elevation in a Fetus Exposed to Ambient Heat and Radio Frequency Fields.

Published in:

Numerical Heat Transfer: Part A -- Applications, 2014, v. 65, n. 12, p. 1176, doi. 10.1080/10407782.2013.869075

By:

Hirata, Akimasa;
Laakso, Ilkka;
Ishii, Yuri;
Nomura, Tomoki;
Chan, KwokHung

Publication type:

Article

FOLDED-LOOP ANTENNA WITH A REFLECTOR FOR MOBILE HANDSETS AT 2.0 GHz.

Published in:

Microwave & Optical Technology Letters, 2004, v. 40, n. 4, p. 272, doi. 10.1002/mop.11350

By:

Hirata, Akimasa;
Adachi, Takahiko;
Shiozawa, Toshiyuki

Publication type:

Article

Folded-loop antennas for handset terminals at the 2.0-GHz band.

Published in:

Microwave & Optical Technology Letters, 2003, v. 36, n. 5, p. 376, doi. 10.1002/mop.10768

By:

Adachi, Takahiko;
Hirata, Akimasa;
Shiozawa, Toshiyuki

Publication type:

Article

Multiscale Computational Model Reveals Nerve Response in a Mouse Model for Temporal Interference Brain Stimulation.

Published in:

Frontiers in Neuroscience, 2021, v. 15, p. 1, doi. 10.3389/fnins.2021.684465

By:

Gomez-Tames, Jose;
Asai, Akihiro;
Hirata, Akimasa

Publication type:

Article

High-Resolution EEG Source Localization in Segmentation-Free Head Models Based on Finite-Difference Method and Matching Pursuit Algorithm.

Published in:

Frontiers in Neuroscience, 2021, v. 15, p. 1, doi. 10.3389/fnins.2021.695668

By:

Moridera, Takayoshi;
Rashed, Essam A.;
Mizutani, Shogo;
Hirata, Akimasa

Publication type:

Article

Synaptic Effect of Aδ-Fibers by Pulse-Train Electrical Stimulation.

Published in:

Frontiers in Neuroscience, 2021, v. 15, p. N.PAG, doi. 10.3389/fnins.2021.643448

By:

Tanaka, Shota;
Gomez-Tames, Jose;
Inui, Koji;
Ueno, Shoogo;
Hirata, Akimasa;
Wasaka, Toshiaki

Publication type:

Article

Association of nuclear cataract prevalence with UV radiation and heat load in lens of older people -five city study-.

Published in:

Environmental Science & Pollution Research, 2023, v. 30, n. 59, p. 123832, doi. 10.1007/s11356-023-31079-2

By:

Kinoshita, Kotaro;
Kodera, Sachiko;
Hatsusaka, Natsuko;
Egawa, Ryusuke;
Takizawa, Hiroyuki;
Kubo, Eri;
Sasaki, Hiroshi;
Hirata, Akimasa

Publication type:

Article

Interview.

Published in:

2015

By:

Akimasa Hirata

Publication type:

Interview

Electric Field Regression and Error Variance Estimation for Transcranial Magnetic Stimulation using Deep Neural Networks.

Published in:

Advanced Biomedical Engineering, 2023, v. 12, p. 225, doi. 10.14326/abe.12.225

By:

Toyohiro MAKI;
Tatsuya YOKOTA;
Akimasa HIRATA;
Hidekata HONTANI

Publication type:

Article

Characteristics of current perception produced by intermediate-frequency contact currents in healthy adults.

Published in:

Frontiers in Neuroscience, 2023, p. 1, doi. 10.3389/fnins.2023.1145505

By:

Shintaro Uehara;
Akiko Yuasa;
Kazuki Ushizawa;
Sachiko Kodera;
Yoshitsugu Kamimura;
Akimasa Hirata;
Yohei Otaka

Publication type:

Article

Selective stimulation of nociceptive small fibers during intraepidermal electrical stimulation: Experiment and computational analysis.

Published in:

Frontiers in Neuroscience, 2023, v. 16, p. 1, doi. 10.3389/fnins.2022.1045942

By:

Yuki Niimi;
Gomez-Tames, Jose;
Toshiaki Wasaka;
Akimasa Hirata

Publication type:

Article

Reduction of Human Interaction with Wireless Power Transfer System Using Shielded Loop Coil.

Published in:

Electronics (2079-9292), 2020, v. 9, n. 6, p. 953, doi. 10.3390/electronics9060953

By:

Kumazawa, Akihiko;
Diao, Yinliang;
Hirata, Akimasa;
Hirayama, Hiroshi

Publication type:

Article

The Effects of Time Window-Averaged Mobility on Effective Reproduction Number of COVID-19 Viral Variants in Urban Cities.

Published in:

Journal of Urban Health, 2023, v. 100, n. 1, p. 29, doi. 10.1007/s11524-022-00697-5

By:

Kodera, Sachiko;
Hikita, Keigo;
Rashed, Essam A.;
Hirata, Akimasa

Publication type:

Article

Source Localization and Classification of Pulmonary Valve-Originated Electrocardiograms Using Volume Conductor Modeling with Anatomical Models.

Published in:

Biosensors (2079-6374), 2024, v. 14, n. 10, p. 513, doi. 10.3390/bios14100513

By:

Ogawa, Kota;
Hirata, Akimasa

Publication type:

Article

Sensitivity of Electrocardiogram on Electrode-Pair Locations for Wearable Devices: Computational Analysis of Amplitude and Waveform Distortion.

Published in:

Biosensors (2079-6374), 2024, v. 14, n. 3, p. 153, doi. 10.3390/bios14030153

By:

Sanjo, Kiyoto;
Hebiguchi, Kazuki;
Tang, Cheng;
Rashed, Essam A.;
Kodera, Sachiko;
Togo, Hiroyoshi;
Hirata, Akimasa

Publication type:

Article

Corticomotoneuronal Model for Intraoperative Neurophysiological Monitoring During Direct Brain Stimulation.

Published in:

International Journal of Neural Systems, 2019, v. 29, n. 1, p. N.PAG, doi. 10.1142/S0129065718500260

By:

Gomez-Tames, Jose;
Hirata, Akimasa;
Tamura, Manabu;
Muragaki, Yoshihiro

Publication type:

Article

Individual and group-level optimization of electric field in deep brain region during multichannel transcranial electrical stimulation.

Published in:

Frontiers in Neuroscience, 2024, p. 1, doi. 10.3389/fnins.2024.1332135

By:

Hidetaka Nishimoto;
Sachiko Kodera;
Naofumi Otsuru;
Akimasa Hirata

Publication type:

Article

The thermal sensation threshold and its reliability induced by the exposure to 28 GHz millimeter-wave.

Published in:

Frontiers in Neuroscience, 2024, p. 1, doi. 10.3389/fnins.2024.1331416

By:

Akiko Yuasa;
Shintaro Uehara;
Kazuki Ushizawa;
Sachiko Kodera;
Norika Arai;
Akimasa Hirata;
Yohei Otaka

Publication type:

Article

ECG Localization Method Based on Volume Conductor Model and Kalman Filtering.

Published in:

Sensors (14248220), 2021, v. 21, n. 13, p. 4275, doi. 10.3390/s21134275

By:

Nakano, Yuki;
Rashed, Essam A.;
Nakane, Tatsuhito;
Laakso, Ilkka;
Hirata, Akimasa

Publication type:

Article

Discussion on classification of impulsive EM noises emitted from power apparatus.

Published in:

Electrical Engineering in Japan, 2006, v. 156, n. 3, p. 1, doi. 10.1002/eej.20378

By:

Nakata, Syo;
Hirata, Akimasa;
Kawasaki, Zen-Ichiro

Publication type:

Article

Evaluation of Peripheral Electrostimulation Thresholds in Human Model for Uniform Magnetic Field Exposure.

Published in:

International Journal of Environmental Research & Public Health, 2022, v. 19, n. 1, p. 390, doi. 10.3390/ijerph19010390

By:

Suzuki, Yosuke;
Gomez-Tames, Jose;
Diao, Yinliang;
Hirata, Akimasa

Publication type:

Article

Infectivity Upsurge by COVID-19 Viral Variants in Japan: Evidence from Deep Learning Modeling.

Published in:

International Journal of Environmental Research & Public Health, 2021, v. 18, n. 15, p. 7799, doi. 10.3390/ijerph18157799

By:

Rashed, Essam A.;
Hirata, Akimasa

Publication type:

Article

One-Year Lesson: Machine Learning Prediction of COVID-19 Positive Cases with Meteorological Data and Mobility Estimate in Japan.

Published in:

International Journal of Environmental Research & Public Health, 2021, v. 18, n. 11, p. 5736, doi. 10.3390/ijerph18115736

By:

Rashed, Essam A.;
Hirata, Akimasa

Publication type:

Article

Correlation between COVID-19 Morbidity and Mortality Rates in Japan and Local Population Density, Temperature, and Absolute Humidity.

Published in:

International Journal of Environmental Research & Public Health, 2020, v. 17, n. 15, p. 5477, doi. 10.3390/ijerph17155477

By:

Kodera, Sachiko;
Rashed, Essam A.;
Hirata, Akimasa

Publication type:

Article

Influence of Absolute Humidity, Temperature and Population Density on COVID-19 Spread and Decay Durations: Multi-Prefecture Study in Japan.

Published in:

International Journal of Environmental Research & Public Health, 2020, v. 17, n. 15, p. 5354, doi. 10.3390/ijerph17155354

By:

Rashed, Essam A.;
Kodera, Sachiko;
Gomez-Tames, Jose;
Hirata, Akimasa

Publication type:

Article

Estimation of Time-Course Core Temperature and Water Loss in Realistic Adult and Child Models with Urban Micrometeorology Prediction.

Published in:

International Journal of Environmental Research & Public Health, 2019, v. 16, n. 24, p. 5097, doi. 10.3390/ijerph16245097

By:

Kamiya, Toshiki;
Onishi, Ryo;
Kodera, Sachiko;
Hirata, Akimasa

Publication type:

Article

Comparison of Thermal Response for RF Exposure in Human and Rat Models.

Published in:

International Journal of Environmental Research & Public Health, 2018, v. 15, n. 10, p. 2320, doi. 10.3390/ijerph15102320

By:

Kodera, Sachiko;
Hirata, Akimasa

Publication type:

Article

Multiphysics and Thermal Response Models to Improve Accuracy of Local Temperature Estimation in Rat Cortex under Microwave Exposure.

Published in:

International Journal of Environmental Research & Public Health, 2017, v. 14, n. 4, p. 358, doi. 10.3390/ijerph14040358

By:

Kodera, Sachiko;
Gomez-Tames, Jose;
Akimasa Hirata;
Hiroshi Masuda;
Takuji Arima;
Soichi Watanabe

Publication type:

Article

Shared autonomy between human electroencephalography and TD3 deep reinforcement learning: A multi‐agent copilot approach.

Published in:

Annals of the New York Academy of Sciences, 2025, v. 1546, n. 1, p. 157, doi. 10.1111/nyas.15322

By:

Phang, Chun‐Ren;
Hirata, Akimasa

Publication type:

Article

TMS Motor Thresholds Correlate With TDCS Electric Field Strengths in Hand Motor Area.

Published in:

Frontiers in Neuroscience, 2018, p. N.PAG, doi. 10.3389/fnins.2018.00426

By:

Mikkonen, Marko;
Laakso, Ilkka;
Sumiya, Motofumi;
Koyama, Soichiro;
Hirata, Akimasa;
Tanaka, Satoshi

Publication type:

Article

FDTD Analysis of Emission from Capacitor with Mechanical Motion.

Published in:

Microwave & Optical Technology Letters, 2013, v. 55, n. 12, p. 2821, doi. 10.1002/mop.27995

By:

Shimizu, Yuhei;
Hirata, Akimasa;
Kuroda, Michiko

Publication type:

Article

Population-Level Immunity for Transient Suppression of COVID-19 Waves in Japan from April 2021 to September 2022.

Published in:

Vaccines, 2023, v. 11, n. 9, p. 1457, doi. 10.3390/vaccines11091457

By:

Kodera, Sachiko;
Ueta, Haruto;
Unemi, Tatsuo;
Nakata, Taisuke;
Hirata, Akimasa

Publication type:

Article

Projection of COVID-19 Positive Cases Considering Hybrid Immunity: Case Study in Tokyo.

Published in:

Vaccines, 2023, v. 11, n. 3, p. 633, doi. 10.3390/vaccines11030633

By:

Kodera, Sachiko;
Takada, Akito;
Rashed, Essam A.;
Hirata, Akimasa

Publication type:

Article

Estimation of mRNA COVID-19 Vaccination Effectiveness in Tokyo for Omicron Variants BA.2 and BA.5: Effect of Social Behavior.

Published in:

Vaccines, 2022, v. 10, n. 11, p. 1820, doi. 10.3390/vaccines10111820

By:

Kodera, Sachiko;
Niimi, Yuki;
Rashed, Essam A.;
Yoshinaga, Naoki;
Toyoda, Masashi;
Hirata, Akimasa

Publication type:

Article

Estimation of Real-World Vaccination Effectiveness of mRNA COVID-19 Vaccines against Delta and Omicron Variants in Japan.

Published in:

Vaccines, 2022, v. 10, n. 3, p. 430, doi. 10.3390/vaccines10030430

By:

Kodera, Sachiko;
Rashed, Essam A.;
Hirata, Akimasa

Publication type:

Article

Effect of a Lens Protein in Low-Temperature Culture of Novel Immortalized Human Lens Epithelial Cells (iHLEC-NY2).

Published in:

Cells (2073-4409), 2020, v. 9, n. 12, p. 2670, doi. 10.3390/cells9122670

By:

Yamamoto, Naoki;
Takeda, Shun;
Hatsusaka, Natsuko;
Hiramatsu, Noriko;
Nagai, Noriaki;
Deguchi, Saori;
Nakazawa, Yosuke;
Takata, Takumi;
Kodera, Sachiko;
Hirata, Akimasa;
Kubo, Eri;
Sasaki, Hiroshi

Publication type:

Article

Reduction in Human Interaction with Magnetic Resonant Coupling WPT Systems with Grounded Loop.

Published in:

Energies (19961073), 2021, v. 14, n. 21, p. 7253, doi. 10.3390/en14217253

By:

Duan, Xianyi;
Lan, Junqing;
Diao, Yinliang;
Gomez-Tames, Jose;
Hirayama, Hiroshi;
Hotta, Masashi;
Fischer, George;
Hirata, Akimasa

Publication type:

Article

Effect of Loudspeakers on the In Situ Electric Field in a Driver Body Model Exposed to an Electric Vehicle Wireless Power Transfer System.

Published in:

Energies (19961073), 2020, v. 13, n. 14, p. 3635, doi. 10.3390/en13143635

By:

Lan, Junqing;
Hirata, Akimasa

Publication type:

Article

Dosimetry Analysis in Non-brain Tissues During TMS Exposure of Broca's and M1 Areas.

Published in:

Frontiers in Neuroscience, 2021, v. 14, p. N.PAG, doi. 10.3389/fnins.2021.644951

By:

Gomez-Tames, Jose;
Tani, Keisuke;
Hayashi, Kazuya;
Tanaka, Satoshi;
Ueno, Shoogo;
Hirata, Akimasa

Publication type:

Article

Electrical Characterisation of Aδ-Fibres Based on Human in vivo Electrostimulation Threshold.

Published in:

Frontiers in Neuroscience, 2021, p. N.PAG, doi. 10.3389/fnins.2020.588056

By:

Tanaka, Shota;
Gomez-Tames, Jose;
Wasaka, Toshiaki;
Inui, Koji;
Ueno, Shoogo;
Hirata, Akimasa

Publication type:

Article

Quantitative Assessment of Pain Threshold Induced by a Single-Pulse Transcranial Magnetic Stimulation.

Published in:

Frontiers in Neuroscience, 2020, v. 14, p. 1, doi. 10.3389/fnins.2020.00559

By:

Tani, Keisuke;
Hirata, Akimasa;
Tanaka, Satoshi

Publication type:

Article

Effects of dielectric permittivities on skin heating due to millimeter wave exposure.

Published in:

2009

By:

Kanezaki A;
Hirata A;
Watanabe S;
Shirai H;
Kanezaki, Akio;
Hirata, Akimasa;
Watanabe, Soichi;
Shirai, Hiroshi

Publication type:

journal article

Effects of cerebellar transcranial direct current stimulation on upper limb motor function after stroke: study protocol for the pilot of a randomized controlled trial.

Published in:

Pilot & Feasibility Studies, 2022, v. 8, n. 1, p. 1, doi. 10.1186/s40814-022-01223-9

By:

Yuasa, Akiko;
Uehara, Shintaro;
Ushizawa, Kazuki;
Toyama, Takamichi;
Gomez-Tames, Jose;
Hirata, Akimasa;
Otaka, Yohei

Publication type:

Article

Temperature elevation in the human brain and skin with thermoregulation during exposure to RF energy.

Published in:

2018

By:

Kodera, Sachiko;
Gomez-Tames, Jose;
Hirata, Akimasa

Publication type:

journal article

COMPUTATIONAL DOSIMETRY FORCHILDANDADULT HUMAN MODELS DUE TO CONTACTCURRENT FROM 10 HZ TO 110 MHZ.

Published in:

Radiation Protection Dosimetry, 2015, v. 167, n. 4, p. 642, doi. 10.1093/rpd/ncu322

By:

Kwok Hung Chan;
Shunya Ohta;
Ilkka Laakso;
Akimasa Hirata;
Yukihisa Suzuki;
Kavet, Robert

Publication type:

Article