Publications by authors named "Masahiko Machida"

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Development of a prediction model for ambient dose equivalent rate distribution based on ecological half-life profiles using LASSO regression and KURAMA data.
Yoshiaki Shikaze, Kimiaki Saito, Naoki Tanimura, Kazuya Yoshimura, Liu Xudong, Masahiko Machida

Radiat Prot Dosimetry· September 2025

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Specific heat anomalies and local symmetry breaking in (anti-)fluorite materials: A machine learning molecular dynamics study.
Keita Kobayashi, Hiroki Nakamura, Masahiko Okumura, Mitsuhiro Itakura, Masahiko Machida

J Chem Phys· June 2025

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Machine learning molecular dynamics reveals the structural origin of the first sharp diffraction peak in high-density silica glasses.
Keita Kobayashi, Masahiko Okumura, Hiroki Nakamura, Mitsuhiro Itakura, Masahiko Machida

Sci Rep· November 2023

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Simulation study on H behavior in the Fukushima coastal region: Comparison of influences of discharges from the Fukushima Daiichi and rivers.
Kazuyuki Sakuma, Susumu Yamada, Masahiko Machida, Hiroshi Kurikami, Toshiharu Misonou

Mar Pollut Bull· July 2023

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Accumulation mechanisms of radiocaesium within lichen thallus tissues determined by means of in situ microscale localisation observation.
Terumi Dohi, Kazuki Iijima, Masahiko Machida, Hiroya Suno, Yoshihito Ohmura

PLoS One· July 2022

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Machine learning molecular dynamics simulations toward exploration of high-temperature properties of nuclear fuel materials: case study of thorium dioxide.
Keita Kobayashi, Masahiko Okumura, Hiroki Nakamura, Mitsuhiro Itakura, Masahiko Machida

Sci Rep· June 2022

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A modeling approach to estimate H discharge from rivers: Comparison of discharge from the Fukushima Dai-ichi and inventory in seawater in the Fukushima coastal region.
Kazuyuki Sakuma, Masahiko Machida, Hiroshi Kurikami, Ayako Iwata, Susumu Yamada

Sci Total Environ· February 2022

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Quantum chemical calculation studies toward microscopic understanding of retention mechanism of Cs radioisotopes and other alkali metals in lichens.
Hiroya Suno, Masahiko Machida, Terumi Dohi, Yoshihito Ohmura

Sci Rep· April 2021

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Calculations for ambient dose equivalent rates in nine forests in eastern Japan from Cs and Cs radioactivity measurements.
Alex Malins, Naohiro Imamura, Tadafumi Niizato, Junko Takahashi, Minsik Kim, Masahiko Machida

J Environ Radioact· January 2021

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Simulation study of the effects of buildings, trees and paved surfaces on ambient dose equivalent rates outdoors at three suburban sites near Fukushima Dai-ichi.
Minsik Kim, Alex Malins, Kazuya Yoshimura, Kazuyuki Sakuma, Hiroshi Kurikami, Masahiko Machida

J Environ Radioact· December 2019

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Radiocesium interaction with clay minerals: Theory and simulation advances Post-Fukushima.
Masahiko Okumura, Sebastien Kerisit, Ian C Bourg, Laura N Lammers, Takashi Ikeda, Masahiko Machida

J Environ Radioact· December 2019

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Long-term simulations of radiocesium discharge in watershed with improved radioesium wash-off model: Applying the model to Abukuma River basin of Fukushima.
Xudong Liu, Masahiko Machida, Hiroshi Kurikami, Akihiro Kitamura

J Environ Radioact· July 2019

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Development of the ReaxFF Methodology for Electrolyte-Water Systems.
Mark V Fedkin, Yun Kyung Shin, Nabankur Dasgupta, Jejoon Yeon, Weiwei Zhang, Masahiko Machida

J Phys Chem A· March 2019

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Understanding Competition of Polyalcohol Dehydration Reactions in Hot Water.
Yong Lik Chang, Takehiko Sasaki, Jordi Ribas-Ariño, Masahiko Machida, Motoyuki Shiga

J Phys Chem B· February 2019

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Radiocesium interaction with clay minerals: Theory and simulation advances Post-Fukushima.
Masahiko Okumura, Sebastien Kerisit, Ian C Bourg, Laura N Lammers, Takashi Ikeda, Masahiko Machida

J Environ Radioact· September 2018

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Nuclear quantum effects of light and heavy water studied by all-electron first principles path integral simulations.
Masahiko Machida, Koichiro Kato, Motoyuki Shiga

J Chem Phys· March 2018

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Transmutation effects on long-term Cs retention in phyllosilicate minerals from first principles.
Michel Sassi, Masahiko Okumura, Masahiko Machida, Kevin M Rosso

Phys Chem Chem Phys· October 2017

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Characteristics of radio-cesium transport and discharge between different basins near to the Fukushima Dai-ichi Nuclear Power Plant after heavy rainfall events.
Kazuyuki Sakuma, Akihiro Kitamura, Alex Malins, Hiroshi Kurikami, Masahiko Machida

J Environ Radioact· April 2017

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Molecular dynamics simulations of cesium adsorption on illite nanoparticles.
Laura N Lammers, Ian C Bourg, Masahiko Okumura, Kedarnath Kolluri, Garrison Sposito, Masahiko Machida

J Colloid Interface Sci· March 2017

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Effect of Remediation Parameters on in-Air Ambient Dose Equivalent Rates When Remediating Open Sites with Radiocesium-contaminated Soil.
Alex Malins, Hiroshi Kurikami, Akihiro Kitamura, Masahiko Machida

Health Phys· October 2016

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Evaluation of ambient dose equivalent rates influenced by vertical and horizontal distribution of radioactive cesium in soil in Fukushima Prefecture.
Alex Malins, Hiroshi Kurikami, Shigeo Nakama, Tatsuo Saito, Masahiko Okumura, Masahiko Machida

J Environ Radioact· January 2016

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Comment on 'Update of (40)K and (226)Ra and (232)Th series γ-to-dose conversion factors for soil'.
Alex Malins, Masahiko Machida, Kimiaki Saito

J Environ Radioact· June 2015

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Observation of a pressure-induced As-As hybridization associated with a change in the electronic state of Fe in the tetragonal phase of EuFe2As2.
Hisao Kobayashi, Shugo Ikeda, Yui Sakaguchi, Yoshitaka Yoda, Hiroki Nakamura, Masahiko Machida

J Phys Condens Matter· January 2013

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Nontrivial Haldane phase of an atomic two-component Fermi gas trapped in a 1D optical lattice.
Keita Kobayashi, Masahiko Okumura, Yukihiro Ota, Susumu Yamada, Masahiko Machida

Phys Rev Lett· December 2012

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Variety of c-axis collective excitations in layered multigap superconductors.
Yukihiro Ota, Masahiko Machida, Tomio Koyama

Phys Rev Lett· April 2011

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