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The taxonomy of the Narcissus Flycatcher Ficedula narcissina–Yellow‐rumped Flycatcher Ficedula zanthopygia complex from East Asia has long been debated. Most authors recognize two species: F. narcissina, with the subspecies narcissina (most of Japan and Sakhalin Island), owstoni (south Japanese islands) and elisae (northeast China) and F. zanthopygia (monotypic), although species status has been proposed...
ZnO single-crystal hexagonal microtubes were controllably fabricated by hydrothermal process. The ZnO microtubes were characterized by scanning electron microscopy, x-ray diffraction and high-resolution transmission electron microscopy. The results show that the as-prepared ZnO microtubes are hexagonal and single crystal in nature and grow on Si (111) substrates along the [0002] direction. SEM images...
Tantalum carbide (TaC x ) whiskers were successfully synthesized via material systems of Ta 2 O 5 -NaCl-C-Ni, Ta 2 O 5 -NaF-C-C 12 H 22 O 11 (sucrose) and Ta 2 O 5 -KCl-C-Ni systems. It was found that whiskers prepared via different material systems have different morphologies. The lattice parameter and...
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