28,574 research outputs found
Simulation of multilevel cell spin transfer switching in a full-Heusler alloy spin-valve nanopillar
No full textAuthor name used in this publication: Shi, S. Q.2012-2013 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishedVoR allowe
Mirollia lanceolata Shi & Wang 2005
No full text15. Mirollia lanceolata Shi & Wang, 2005 (Figures 2 H, 6 D–F, 10 Q) Mirollia lanceolata Shi & Wang 2005, In: Yang, M.F. & Jin, D.C. (Eds.) Insects of Dashahe in Guizhou Province: 75. Material examined. Holotype, male, Dashahe, Daozhen, Guizhou, 19 Aug. 2004, coll. Fu-Ming Shi. Redescription. Male. Stridulatory area of left tegmen long oval, 3.4 mm long, 1.9 mm wide (Fig. 10 Q). Cerci short, not reaching apex of subgenital plate (Fig. 6 D); strongly incurved in apical third; apex with a minute apical spine (Fig. 6 F). Phallus with two pairs of sclerites: lateral sclerites long, basal part thick, distal part lanceolate; medial sclerites bilobate, rather small, dorsal lobe denticulate on top. Subgenital plate strongly curved upwards before middle; basal part broad, medial area narrow and apical part slightly widened, posterior margin longitudinally split into two wide lobes (Fig. 6 E). Measurements (mm). Male. Body: 15.0; body with wings: 32.5; pronotum: 4.0; tegmen length: 24.0; tegmen width: 4.5; hind wing: 28.5; profemur: 4.2; mesofemur: 6.3; postfemur: 13.0. Distribution. China (Guizhou).Published as part of Wang, Gang, Wang, Hai-Jian & Shi, Fu-Ming, 2015, Remarks of the genus Mirollia (Orthoptera: Tettigoniidae: Phaneropterinae) from China, pp. 307-333 in Zootaxa 4021 (2) on page 316, DOI: 10.11646/zootaxa.4021.2.4, http://zenodo.org/record/23579
Supplemental material for Simulation-based sensitivity analysis for non-ignorably missing data
No full textSupplemental Material for Simulation-based sensitivity analysis for non-ignorably missing data by Peng Yin and Jian Q Shi in Statistical Methods in Medical Research</p
The Shi arrangement and the Ish arrangement
No full textThis paper is about two arrangements of hyperplanes. The first — the Shi arrangement — was introduced by Jian-Yi Shi to describe the Kazhdan-Lusztig cells in the affine Weyl group of type A. The second — the Ish arrangement — was recently defined by the first author who used the two arrangements together to give a new interpretation of the q,t-Catalan numbers of Garsia and Haiman. In the present paper we will define a mysterious "combinatorial symmetry'' between the two arrangements and show that this symmetry preserves a great deal of information. For example, the Shi and Ish arrangements share the same characteristic polynomial, the same numbers of regions, bounded regions, dominant regions, regions with c "ceilings'' and d "degrees of freedom'', etc. Moreover, all of these results hold in the greater generality of "deleted'' Shi and Ish arrangements corresponding to an arbitrary subgraph of the complete graph. Our proofs are based on nice combinatorial labellings of Shi and Ish regions and a new set partition-valued statistic on these regions.Cet article traite de deux arrangements d'hyperplans. Le premier — arrangement Shi — a été introduit par Jian-Yi Shi pour décrire les cellules de Kazhdan-Lusztig du groupe de Weyl affine de type A. Le deuxième — arrangement Ish — a été récemment défini par le premier auteur pour donner une nouvelle interprétation des nombres q,t-Catalan de Garsia et Haiman. Ici nous définissons une mystérieuse "symétrie combinatoire" entre les deux arrangements et nous montrons que cette symétrie conserve un grand nombre d'informations. Par exemple, les arrangements Shi et Ish ont le même polynôme caractéristique, le même nombre de régions, de régions bornées, de régions dominantes, de régions avec c "plafonds'' et d "degrés de liberté'', etc. En outre, ces résultats se généralisent aux arrangements Shi et Ish "deleted'' correspondant à un sous-graphe arbitraire du graphe complet. Nos preuves reposent sur des étiquetages combinatoires des régions Shi et Ish, et sur une nouvelle statistique associée
A characterization of where
No full textsummary:The order of every finite group can be expressed as a product of coprime positive integers such that is a connected component of the prime graph of . The integers are called the order components of . Some non-abelian simple groups are known to be uniquely determined by their order components. As the main result of this paper, we show that the projective symplectic groups where are also uniquely determined by their order components. As corollaries of this result, the validities of a conjecture by J.G. Thompson and a conjecture by W. Shi and J. Be for with are obtained
Mechanistic Study of Radium Adsorption onto Goethite
No full textRadium (Ra2+) is a radioactive element with a long half-life. It is used in industry and is often found in shallow aquifers due to natural or anthropogenic leakage or spill of brine from deep subsurface. A major factor influencing the transport and fate of Ra2+ in water is the adsorption/desorption process onto soil particles. Goethite, a ubiquitous natural mineral generally present as a coating of soil particles, contributes significantly to the adsorption of Ra2+ in the subsurface. However, the chemical reactions of adsorption of Ra2+ onto goethite are not well-established, yet. Previous studies reported that Ra2+ creates either tetradentate or monodentate complexes on goethite and no distinction between outer-sphere and inner-sphere types of complexes were made. Knowledge of the type and structure of Ra-goethite surface complexes is important to predict the behavior and the fate of Ra2+ in the subsurface, e.g., upon a spill and during the remediation of a contaminated site. Here, the adsorption of Ra2+ onto goethite is investigated by density functional theory (DFT) calculations. By using a combination of geometric structure, adsorption energy, and electronic state (i.e., density of states and magnetic moment) analyses, the outer-sphere adsorption was found to dominate Ra2+ complexation on goethite, suggesting a significant effect of salinity on Ra2+ transport in the subsurface. Inner-sphere adsorption configuration was not observed to be thermodynamically favorable, resulting from ionic rather than covalent interaction between Ra2+ and goethite. Based on these results, a surface complexation model was developed and validated successfully with literature data. This study provides insights into the mechanism of Ra2+ adsorption on soils containing goethite and provides chemical reactions of Ra-goethite surface interaction that can be coupled with a transport model to predict Ra2+ migration in the subsurface
MULTIFRACTAL q RÉNYI DIMENSIONS OF POLISH SPACES FOR q < 1
No full text In earlier work the second author investigated the multifractal q Rényi dimensions of Polish spaces for q ≥ 1. In this paper we complement those results by investigating the multifractal q Rényi dimensions of Polish spaces for q < 1. </jats:p
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