Marino Kawamura

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An ionosonde network consisting of a meridional chain and an equatorial pair was established in the Southeast Asian area. Three of four ionosondes are along the magnetic meridian of 100 • E; two are close to the magnetic conjugate points in Northern Thailand and West Sumatra, Indone-sia, and the other is near the magnetic equator in the Malay Peninsula,(More)
High-entropy alloys (HEAs) comprise a novel class of scientifically and technologically interesting materials. Among these, equatomic CrMnFeCoNi with the face-centered cubic (FCC) structure is noteworthy because its ductility and strength increase with decreasing temperature while maintaining outstanding fracture toughness at cryogenic temperatures. Here we(More)
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