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TL;DR: In this article, the Seebeck coefficient, electrical resistivity and thermal conductivity of P-type semiconductor alloy compacts of the composition (Bi2Te3)25-(Sb2Te 3)75 with grain size (L) in the range 30 > L > 20 μm, 20 > L < 15 μm and L < 5 μm were prepared by cold press at a pressure of 77 × 107 Nm−2.
Abstract: P-type semiconductor alloy compacts of the composition (Bi2Te3)25-(Sb2Te3)75 with grain size (L) in the range 30 > L > 20 μm, 20 > L > 15 μm, 15 > L > 10 μm, 10 > L > 5 and L < 5 μm were prepared by cold press at a pressure of 77 × 107 Nm−2. The samples were sintered at 673 K. Measurements of the Seebeck coefficient, electrical resistivity and thermal conductivity were carried out. The experimental results show that the Seebeck coefficient increases, but not much from the single crystal. The electrical resistivity increases in particular for the size L < 5 μm with a reduction in grain size. The total thermal conductivity seriously decreases as grain size decreases. It is concluded that the figure of merit of the compacted alloy would be significantly improved through the use of fine-grained powders of size 30−10 μm.
30 citations
TL;DR: Three types of flexible ophthalmoendoscopes were used for the surgical treatment of various abnormalities in the posterior ocular segments because all 23 patients had opacification of the cornea and lens, which made it difficult to perform intravitreal surgery on the "closed" eye.
Abstract: • We successfully used three types of flexible ophthalmoendoscopes for the surgical treatment of various abnormalities in the posterior ocular segments. All 23 patients had opacification of the cornea and lens, which made it difficult or even impossible to perform intravitreal surgery on the "closed" eye. All operations were performed through the pars plana. No complications were noted.
30 citations
TL;DR: In this article, the Laplace transform technique and control volume method in conjunction with the hyperbolic shape function and least-squares scheme are applied to estimate the unknown surface conditions of one-dimensional hyperbola inverse heat conduction problems.
30 citations
TL;DR: It is found that mixing ergosterol with phospholipids into a single phase became increasingly difficult with higher sterol concentrations and also with higher concentrations of unsaturated lipid chains, suggesting that different sterols have a universal behavior that differs only in degree.
30 citations
TL;DR: The feature-rich electronic excitations of monolayer germanene lie in the significant spin-orbit coupling and the buckled structure as discussed by the authors, and the collective and single particle excitations are diversified by the magnitude and direction of transferred momentum, the Fermi energy and the gate voltage.
Abstract: The feature-rich electronic excitations of monolayer germanene lie in the significant spin-orbit coupling and the buckled structure. The collective and single-particle excitations are diversified by the magnitude and direction of transferred momentum, the Fermi energy and the gate voltage. There are four kinds of plasmon modes, according to the unique frequency- and momentum-dependent phase diagrams. They behave as two-dimensional acoustic modes at long wavelength. However, for the larger momenta, they might change into another kind of undamped plasmons, become the seriously suppressed modes in the heavy intraband e–h excitations, keep the same undamped plasmons, or decline and then vanish in the strong interband e–h excitations. Germanene, silicene and graphene are quite different from one another in the main features of the diverse plasmon modes.
30 citations
Authors
Showing all 2478 results
| Name | H-index | Papers | Citations |
|---|---|---|---|
| Kamil Kuca | 55 | 1029 | 16708 |
| Antoni Rogalski | 47 | 286 | 11516 |
| Ufuk Gündüz | 44 | 206 | 6560 |
| George P. Patrinos | 43 | 353 | 8785 |
| Ching-Hsue Cheng | 42 | 209 | 8222 |
| Saad M. Alshehri | 42 | 280 | 6179 |
| Roman Dabrowski | 38 | 469 | 6415 |
| Daniel Jun | 37 | 287 | 5505 |
| Susheel Kalia | 36 | 105 | 6984 |
| Dragan Pamučar | 36 | 194 | 4519 |
| Turgay Celik | 35 | 508 | 5417 |
| Janice D. Yoder | 33 | 81 | 3486 |
| Miodrag Čolić | 32 | 212 | 3894 |
| T. C. T. Ting | 32 | 121 | 9662 |
| Manuela Tvaronavičienė | 31 | 153 | 2832 |