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  1. Article

    Open Access

    Should I stay or should I go? The influence of environmental conditions on green turtle residence time and outward transit in foraging areas

    Foraging animals move through the environment to satisfy their requirements for food, rest, reproduction and risk-avoidance. Understanding how animals respond to changing environmental conditions can help to c...

    Emily G. Webster, Stephanie Duce, Mark Hamann, Nicholas Murray in Marine Biology (2024)

  2. Article

    Open Access

    Electronic strengthening mechanism of covalent Si via excess electron/hole do**

    Brittle fracture of a covalent material is ultimately governed by the strength of the electronic bonds. Recently, attempts have been made to alter the mechanical properties including fracture strength by exces...

    Hiroki Noda, Shumpei Sakaguchi, Ryoga Fujita, Susumu Minami in Scientific Reports (2023)

  3. No Access

    Article

    Sky glow disrupts the orientation of Australian flatback turtles Natator depressus on nesting beaches

    Light pollution may disorientate animals at night, resulting in higher mortality and lowered reproductive success. As artificial night lighting ensues from rapid coastal development, there is concern for anima...

    Takahiro Shimada, Colin J. Limpus, Nancy N. FitzSimmons in Regional Environmental Change (2022)

  4. Article

    Open Access

    A review of how the biology of male sea turtles may help mitigate female-biased hatchling sex ratio skews in a warming climate

    In a warming climate, male sea turtles may become increasingly rare due to temperature-dependent sex determination with females being produced at warmer temperatures. Hence there is widespread concern that a l...

    Graeme C. Hays, Takahiro Shimada, Gail Schofield in Marine Biology (2022)

  5. Article

    Open Access

    Satellite tagging and flipper tag recoveries reveal migration patterns and foraging distribution of loggerhead sea turtles (Caretta caretta) from eastern Australia

    Marine turtles encounter different threats during various life-history stages. Therefore, understanding their movements and spatial distribution is crucial for effectively managing these long-lived migratory o...

    Michelle A. Perez, Colin J. Limpus, Kate Hofmeister, Takahiro Shimada in Marine Biology (2022)

  6. Article

    Open Access

    Linear-superelastic Ti-Nb nanocomposite alloys with ultralow modulus via high-throughput phase-field design and machine learning

    The optimal design of shape memory alloys (SMAs) with specific properties is crucial for the innovative application in advanced technologies. Herein, inspired by the recently proposed design concept of concent...

    Yuquan Zhu, Tao Xu, Qinghua Wei, Jiawei Mai, Hongxin Yang in npj Computational Materials (2021)

  7. No Access

    Article

    Reversible control of intrinsic shear strength of a ZnO single crystal through electron-beam-induced hole state

    Material strength depends on the interatomic bond strength of a material; therefore, desired mechanical properties of the material can be designed if the bond strength can be altered. In this study, we experim...

    Hiroyuki Hirakata, Kyohei Sano, Takahiro Shimada in Journal of Materials Research (2021)

  8. No Access

    Article

    Selective excitation of two-wave structure depending on crystal orientation under shock compression

    Single crystals subjected to shock compression exhibit responses with distinct two-wave structures for certain crystal orientations. However, little is known to date regarding how the shock response depends on...

    QiLin **ong, Takahiro Shimada in Science China Physics, Mechanics & Astrono… (2020)

  9. No Access

    Chapter and Conference Paper

    An Atomic-Level Unified Criterion for Brittle Fracture

    This paper aims to propose a unified criterion for brittle fracture of general (blunt) notches and ideal (sharp) cracks. A new fracture parameter, i.e., atomic energy release rate (ERR), for which the atomic d...

    Kai Huang, Takashi Sumigawa in Proceedings of the Third International Con… (2020)

  10. Article

    Open Access

    Antidiabetic and cardiovascular beneficial effects of a liver-localized mitochondrial uncoupler

    Inducing mitochondrial uncoupling (mUncoupling) is an attractive therapeutic strategy for treating metabolic diseases because it leads to calorie-wasting by reducing the efficiency of oxidative phosphorylation...

    Naohide Kanemoto, Takashi Okamoto, Koji Tanabe, Takahiro Shimada in Nature Communications (2019)

  11. Article

    Open Access

    Electron engineering of metallic multiferroic polarons in epitaxial BaTiO3

    The coexistence of ferroelectricity, conductivity, and magnetism in a single-phase material has attracted considerable attention due to fundamental interest and tremendous technological potential. However, the...

    Tao Xu, Takahiro Shimada, Yasumitsu Araki, Masataka Mori in npj Computational Materials (2019)

  12. No Access

    Chapter and Conference Paper

    Investigation into the Breakdown of Continuum Fracture Mechanics at the Nanoscale: Synthesis of Recent Results on Silicon

    The present contribution reviews some recent results on the experimental characterisation of the nanoscale fracture toughness of silicon by using pre-cracked specimens and alternatively the theory of critical ...

    Pasquale Gallo, Takashi Sumigawa in Proceedings of the First International Con… (2019)

  13. Article

    Open Access

    Giant magnetoelectric effect at the graphone/ferroelectric interface

    Multiferroic heterostructures combining ferromagnetic and ferroelectric layers are promising for applications in novel spintronic devices, such as memories with electrical writing and magnetic reading, assumin...

    Jie Wang, Yajun Zhang, M. P. K. Sahoo, Takahiro Shimada in Scientific Reports (2018)

  14. Article

    Open Access

    Multiferroic Phases and Transitions in Ferroelectric Lead Titanate Nanodots

    Discovery of novel phases and their associated transitions in low-dimensional nanoscale systems is of central interest as the origin of emergent phenomena and new device paradigms. Although typical ferroelectr...

    Tao Xu, Takahiro Shimada, Yoshitaka Uratani, **aoyuan Wang, Jie Wang in Scientific Reports (2017)

  15. No Access

    Book

  16. No Access

    Chapter

    Introduction

    Multiphysics, which is the phenomenon where different physical properties are correlated with each other, is drawing much attention not only of scientific researchers but also of engineers. In the discussion o...

    Yoshitaka Umeno, Takahiro Shimada, Yusuke Kinoshita in Multiphysics in Nanostructures (2017)

  17. No Access

    Chapter

    Ferroelectric Nanostructures

    Ferroelectricity is known to be sensitive to strain, and therefore, salient effects of nanostructures on ferroelectric properties can be expected. We introduce recent first-principles calculations of ferroelec...

    Yoshitaka Umeno, Takahiro Shimada, Yusuke Kinoshita in Multiphysics in Nanostructures (2017)

  18. No Access

    Chapter

    Multiferroic Nanostructures

    Multiferroics, two or more ferroic orders such as ferroelectricity and antiferromagnetism coexist and coupled with each other, is a tremendously fascinating topic in terms of scientific interests as well as po...

    Yoshitaka Umeno, Takahiro Shimada, Yusuke Kinoshita in Multiphysics in Nanostructures (2017)

  19. No Access

    Chapter

    Methodology of Quantum Mechanics/Atomic Simulations

    Methodology for electronic structure calculations is overviewed. We place focus on first-principles calculation method based on the density-functional theory, which is most widely used for calculations of mult...

    Yoshitaka Umeno, Takahiro Shimada, Yusuke Kinoshita in Multiphysics in Nanostructures (2017)

  20. No Access

    Chapter

    Strain Engineering on Nanosemiconductors

    A lot of scientific investigations have been dedicated to strain engineering on semiconductors to alter and tune band gap energies and electronic structures by the application of strain. It also attracts much ...

    Yoshitaka Umeno, Takahiro Shimada, Yusuke Kinoshita in Multiphysics in Nanostructures (2017)

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