Search Results - "Junko Morikawa"

Predicting Materials Properties with Little Data Using Shotgun Transfer Learning by Yamada, Hironao, Liu, Chang, Wu, Stephen, Koyama, Yukinori, Ju, Shenghong, Shiomi, Junichiro, Morikawa, Junko, Yoshida, Ryo

“…There is a growing demand for the use of machine learning (ML) to derive fast-to-evaluate surrogate models of materials properties. In recent years, a broad…”
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RadonPy: automated physical property calculation using all-atom classical molecular dynamics simulations for polymer informatics by Hayashi, Yoshihiro, Shiomi, Junichiro, Morikawa, Junko, Yoshida, Ryo

“…The spread of data-driven materials research has increased the need for systematically designed materials property databases. However, the development of…”
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Multi-objective optimization for assisting the design of fixed-type packed bed reactors for chemical heat storage by Zamengo, Massimiliano, Wu, Stephen, Yoshida, Ryo, Morikawa, Junko

“…•Multi-objective optimization applied on packed bed reactor for chemical heat storage.•Simultaneous maximization of heat storage density, rate and exergy…”
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Photothermally induced natural vibration for versatile and high-speed actuation of crystals by Hagiwara, Yuki, Hasebe, Shodai, Fujisawa, Hiroki, Morikawa, Junko, Asahi, Toru, Koshima, Hideko

“…The flourishing field of soft robotics requires versatile actuation methodology. Natural vibration is a physical phenomenon that can occur in any material…”
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On the origin of elasticity and heat conduction anisotropy of liquid crystal elastomers at gigahertz frequencies by Cang, Yu, Liu, Jiaqi, Ryu, Meguya, Graczykowski, Bartlomiej, Morikawa, Junko, Yang, Shu, Fytas, George

“…Liquid crystal elastomers that offer exceptional load-deformation response at low frequencies often require consideration of the mechanical anisotropy only…”
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Photothermally Driven High-Speed Crystal Actuation and Its Simulation by Hasebe, Shodai, Hagiwara, Yuki, Komiya, Jun, Ryu, Meguya, Fujisawa, Hiroki, Morikawa, Junko, Katayama, Tetsuro, Yamanaka, Daiki, Furube, Akihiro, Sato, Hiroyasu, Asahi, Toru, Koshima, Hideko

“…Mechanically responsive crystals have been increasingly explored, mainly based on photoisomerization. However, photoisomerization has some disadvantages for…”
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Numerical evaluation of a Carnot battery system comprising a chemical heat storage/pump and a Brayton cycle by Zamengo, Massimiliano, Yoshida, Kazuo, Morikawa, Junko

“…•Chemical heat storage/pump applied to Carnot battery is analyzed numerically.•Energy from electricity is stored via Ca(OH)2/H2O/CaO chemical heat…”
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Analysis of molecular orientation in polymeric spherulite using polarized micro attenuated total reflection Fourier transform infrared (ATR-FTIR) spectroscopic imaging by Hikima, Yuta, Morikawa, Junko, Kazarian, Sergei G.

“…Micro ATR-FTIR spectroscopic imaging enables the visualization of two-dimensional chemical distribution at a higher spatial resolution than macro-transmission…”
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Numerical Analysis on the Effect of Thermal Conductivity and Thermal Contact Conductance on Heat Transfer during Dehydration Reaction in a Fixed Packed Bed Reactor for Thermochemical Heat Storage by Zamengo, Massimiliano, Funayama, Shigehiko, Takasu, Hiroki, Kato, Yukitaka, Morikawa, Junko

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Micro-thermocouple on nano-membrane: thermometer for nanoscale measurements by Balčytis, Armandas, Ryu, Meguya, Juodkazis, Saulius, Morikawa, Junko

“…A thermocouple of Au-Ni with only 2.5- μ m-wide electrodes on a 30-nm-thick Si 3 N 4 membrane was fabricated by a simple low-resolution electron beam…”
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Simple multi-wavelength imaging of birefringence:case study of silk by Honda, Reo, Ryu, Meguya, Li, Jing-Liang, Mizeikis, Vygantas, Juodkazis, Saulius, Morikawa, Junko

“…Polarised light imaging microscopy, with the addition of a liquid crystal (LC) phase retarder, was used to determine the birefringence of silk fibres with high…”
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Orientational Mapping Augmented Sub-Wavelength Hyper-Spectral Imaging of Silk by Ryu, Meguya, Balčytis, Armandas, Wang, Xuewen, Vongsvivut, Jitraporn, Hikima, Yuta, Li, Jingliang, Tobin, Mark J., Juodkazis, Saulius, Morikawa, Junko

“…Molecular alignment underpins optical, mechanical, and thermal properties of materials, however, its direct measurement from volumes with micrometer dimensions…”
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Comparative study of thermal conductivity in crystalline and amorphous nanocomposite by Juangsa, Firman Bagja, Muroya, Yoshiki, Ryu, Meguya, Morikawa, Junko, Nozaki, Tomohiro

“…Silicon nanocrystals (SiNCs)/polystyrene (PS) nanocomposite has been observed to have a significant decrease in thermal conductivity in terms of the SiNC…”
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FT-IR Image Processing Algorithms for In-Plane Orientation Function and Azimuth Angle of Uniaxially Drawn Polyethylene Composite Film by Hikima, Yuta, Morikawa, Junko, Hashimoto, Toshimasa

“…The FT-IR imaging method has been applied to acquire thousands of infrared spectra at a spatial resolution near the diffraction limit using an IR image sensor…”
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Nanostructured Antireflective and Thermoisolative Cicada Wings by Morikawa, Junko, Ryu, Meguya, Seniutinas, Gediminas, Balčytis, Armandas, Maximova, Ksenia, Wang, Xuewen, Zamengo, Massimiliano, Ivanova, Elena P, Juodkazis, Saulius

“…Inter-related mechanical, thermal, and optical macroscopic properties of biomaterials are defined at the nanoscale by their constituent structures and…”
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Photo-controllable thermal diffusivity and thermal conductivity driven by the orientation change of nematic liquid crystal with azo-dendrimers by Ryu, Meguya, Takezoe, Hideo, Haba, Osamu, Yonetake, Koichiro, Morikawa, Junko

“…We measured the temperature dependences of anisotropic thermal properties, i.e., thermal diffusivity, thermal effusivity, thermal conductivity, and heat…”
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Simultaneous measurements of anisotropic thermal diffusivity and thermal effusivity of liquid crystals using temperature wave analysis method by Ryu, Meguya, Morikawa, Junko

“…Simultaneous measurements of anisotropic thermal diffusivity and thermal effusivity in the phase transition of the liquid crystal 4′-(pentyloxy)-4-biphenyl…”
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Wavenumber Dependence of FT-IR Image of Molecular Orientation in Banded Spherulites of Poly(3-hydroxybutyrate) and Poly(l‑lactic acid) by Hikima, Yuta, Morikawa, Junko, Hashimoto, Toshimasa

“…The chemical and the molecular chain orientation image of a banded spherulite of crystalline polymers, poly(l-lactic acid) (PLLA) and poly(3-hydroxybutyrate)…”
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Intracrystalline Kinetics Analyzed by Real-Time Monitoring of a 1,2-Dioxetane Chemiluminescence Reaction in a Single Crystal by Matsuhashi, Chihiro, Fujisawa, Hiroki, Ryu, Meguya, Tsujii, Tetsuya, Morikawa, Junko, Oyama, Hironaga, Uekusa, Hidehiro, Maki, Shojiro, Hirano, Takashi

“…Adamantylideneadamantane 1,2-dioxetane (Adox), one of the most stable 1,2-dioxetanes, was used to investigate the kinetic properties of its chemiluminescent…”
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Thermal and optical properties of the femtosecond-laser-structured and stress-induced birefringent regions in sapphire by Morikawa, Junko, Orie, Akihiro, Hashimoto, Toshimasa, Juodkazis, Saulius

“…Temperature diffusivity of laser micro-structured regions in sapphire is determined by a temperature wave method with a lateral resolution reduced to ~10…”
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