Abstract A stable and highly sensitive gas ionization sensor (GIS) constructed from vertically aligned, conductive yttrium-doped ZnO nanorod (YZO NR) arrays is demonstrated. The conductive YZO NRs are synthesized using a facile one-pot hydrothermal method. At higher Y/Zn molar ratio, the aspect ratio of the YZO NRs is increased from 11 to 25. Doping with yttrium atoms decreases the electrical r...

Two regimens to immobilise the knee after injection were compared in patients receiving intra-articular yttrium-90 for persistent synovitis of the knee, the patients being randomly allocated to receive either complete bed rest or full mobilisation with the affected knee in a firm splint. There was no difference in the percentage of the radioisotope retained in the knee or in that taken up by ot...

Trigonal ordering is evident from electron microscopy of quenched powders of composition YBa#Zu, 0, 5. The powders are a mixture of phases, some of which are based upon two trigonal phases with (I = 0.54 and c = 0.66 nm. In the first the yttrium and barium atoms order on the (I 11) planes of the parent perovskite structure rather than the (001) while in the second stacking sequence the yttrium ...

Magnesium alloys are a strong candidate for various applications in automobile and aerospace industries due to their low density specific strength. Micro-alloying magnesium with zinc, yttrium, cerium enhances mechanical properties of through grain refinement precipitation hardening. In this work, critical review magnesium-based binary systems including Mg-Zn, Mg-Y, Mg-Ce, Zn-Y, Zn-Ce is present...

The optical and magneto-optical activities of yttrium iron garnet are shown to depend on the sintering stage. Low density yttrium iron garnet presents a lower optical activity than the high density garnet. The magneto-optical activity decreases at energies in which the optical transitions are associated to crystal field, indicating a relationship between the optical activity and the distortion ...

The generation of dark spin wave envelope soliton trains from a continuous wave input signal due to spontaneous modulational instability has been observed for the first time. The dark soliton trains were formed from high dispersion dipole-exchange spin waves propagated in a thin yttrium iron garnet film with pinned surface spins at frequencies situated near the dipole gaps in the dipole-exchang...