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TL;DR: In situ neutron diffraction and elastic-viscoplastic self-consistent (EVPSC) modeling have been employed to understand the deformation mechanisms of the loading-unloading process under uniaxial tension in a solid-solution-strengthened extruded Mg-9 wt.% Al alloy as discussed by the authors.
51 citations
TL;DR: In this article, Sieving and root removal experiments were used to examine their effects on carbon and nitrogen mineralization in forest soil, and the results showed that carbon mineralization rates decreased in smaller particle size fractions of forest litter, and this trend largely disappeared when results were calculated on an ash-free basis.
Abstract: Leaf litter breakdown and fine root production, including exudation, are two major influences upon carbon and nitrogen mineralization rates in forest soil. Sieving and root removal experiments were used to examine their effects. Although carbon mineralization rates declined in smaller particle size fractions of forest litter, this trend largely disappeared when results were calculated on an ash-free basis. Nitrogen mineralization by contrast, was greatest in smaller fractions.
50 citations
TL;DR: This is the first detailed study of the effects of maturation regimes on the recovery of somatic embryo-derived plants of Larix and sucrose at 0.2 M, applied during maturation, was significantly more beneficial in attaining high germination rates than at0.1 M.
Abstract: Germination and plantlet development in somatic embryos of Larix x leptoeuropaea were affected by the duration of the maturation treatment and the concentrations of sucrose and abscisic acid in the maturation media. Extension of the maturation period from 3 weeks to 4 weeks resulted in a significant decrease in germination and plantlet development frequencies. There was no significant effect of abscisic acid concentration on either the number of somatic embryos germinated or the number of plantlets obtained, but it affected the rapidity of the epicotyl development. Sucrose at 0.2 M, applied during maturation, was significantly more beneficial in attaining high germination rates than at 0.1 M. High germination rates (92 and 93%) and plantlet development rates (74 and 80%) were achieved when somatic embryos were matured for a 3-week period on media with either 40 or 60 μM abscisic acid, respectively, and 0.2 M sucrose prior to transfer to the growth regulator-free germination medium. Two acclimatization methods were applied: the first required 10 to 12 weeks and ensured 97% plantlet survival under greenhouse conditions; the second required 2–3 weeks and ensured 86% plantlet survival. This represents the first detailed study of the effects of maturation regimes on the recovery of somatic embryo-derived plants of Larix.
50 citations
TL;DR: In this article, an overview of Canadian geology, as well as an assessment of the potential application of underground storage methods and associated safety concerns in Canada is presented, where favorable locations for pilot projects are found in the sedimentary basins of western and Atlantic Canada as well and southern Ontario, or the crystalline rocks of the Canadian Shield.
50 citations
TL;DR: The geometrically frustrated double perovskite Ba${}{2}$YMoO${}_{6}$ is characterized by quantum spins at the Mo${}^{5+}$ sites of an undistorted fcc lattice.
Abstract: The geometrically frustrated double perovskite Ba${}_{2}$YMoO${}_{6}$ is characterized by quantum $s=1/2$ spins at the Mo${}^{5+}$ sites of an undistorted fcc lattice. Previous low-temperature characterization revealed an absence of static long-range magnetic order and suggested a nonmagnetic spin-singlet ground state. We report unique time-of-flight and triple-axis neutron spectroscopy of Ba${}_{2}$YMoO${}_{6}$ that shows a 28 meV spin excitation with a bandwidth of $\ensuremath{\sim}$4 meV, which vanishes above $\ensuremath{\sim}$125 K. We identify this as the singlet-triplet excitation that arises out of a singlet ground state, and further identify a weaker continuum of magnetic states within the gap, reminiscent of spin-polaron states arising due to weak disorder.
50 citations
Authors
Showing all 2298 results
| Name | H-index | Papers | Citations |
|---|---|---|---|
| Michael D. Guiver | 78 | 288 | 20540 |
| Robert J. Birgeneau | 78 | 587 | 22686 |
| Mike D. Flannigan | 71 | 211 | 21327 |
| Martin T. Dove | 61 | 396 | 14767 |
| Luis Rodrigo | 58 | 341 | 12963 |
| André Longtin | 56 | 260 | 16372 |
| David Mitlin | 56 | 196 | 15479 |
| John Katsaras | 55 | 220 | 9263 |
| John E. Greedan | 55 | 391 | 12171 |
| Gang Li | 48 | 406 | 7713 |
| Matthew G. Tucker | 45 | 224 | 7288 |
| Bruce D. Gaulin | 45 | 284 | 6698 |
| Erick J. Dufourc | 43 | 144 | 5882 |
| Norbert Kučerka | 43 | 119 | 7319 |
| Stephen J. Skinner | 42 | 194 | 8522 |