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Single crystals of quasi-one-dimensional vanadium pyroxene LiVSi2O6 were synthesized and the crystal structures at 293K and 113K were studied using X-ray diffraction experiments. We found a structural phase transition from the room-temperature crystal structure with space group C2/c to a low-temperature structure with space group P21/c, resulting from a rotational displacement of SiO4 tetrahedra....
Reflection and radiation characteristics of a slot antenna backed by a half cylindrical cavity made of conductive textiles have been measured. Two conductive textile sheets and conductive threads configured a post-wall structure forming a cavity of a thin half-cylinder. The antenna was designed for the operation frequency around 2.45 GHz. The reflection and radiation characteristics were measured...
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