73,728 research outputs found
Zai zhan shi: shi si xing lian ti shi bing fu shi jie.
W.H.奧鄧著 ; 朱維基譯."這本詩集是奧鄧(W. H. Auden)和伊粟伍特(Christopher Isherwood)兩人合著的'到一個戰爭去的旅行'(Journey to a war)裏面用韻文寫的一部份"--引言.W.H. Aodeng zhu ; Zhu Weiji yi."Zhe ben shi ji shi Aodeng (W. H. Auden) he Yisuwute (Christopher Isherwood) liang ren he zhu de 'Dao yi ge zhan zheng qu de lü xing'( Journey to a war) li mian yong yun wen xie de yi bu fen"-- Yin yan
Part of the global seawater delta oxygen-18 database from reference Shi-Ying 1991
Part of the global seawater delta oxygen-18 database from reference Shi-Ying 199
Aralia lihengiana J. Wen, L. Deng & X. Shi, a new species of Araliaceae from China
Wen, Jun, Deng, Lilan, Shi, Xiaochun (2002): Aralia lihengiana J. Wen, L. Deng & X. Shi, a new species of Araliaceae from China. Adansonia (3) 24 (2): 217-220, DOI: http://doi.org/10.5281/zenodo.460515
Fig. 1. — Aralia lihengiana J. Wen, L. Deng & X in Aralia lihengiana J. Wen, L. Deng & X. Shi, a new species of Araliaceae from China
Fig. 1. — Aralia lihengiana J. Wen, L. Deng & X. Shi: A, branch with a leaf; B, flowering branch; C, close-up of leaflet margin; D, close-up of inflorescence branch; E, open flower; F, old flower after shedding of corolla; G, fruit with 3 persistent styles.Published as part of Wen, Jun, Deng, Lilan & Shi, Xiaochun, 2002, Aralia lihengiana J. Wen, L. Deng & X. Shi, a new species of Araliaceae from China, pp. 217-220 in Adansonia (3) 24 (2) on page 219, DOI: 10.5281/zenodo.460515
Electronic and photocatalytic properties of transition metal decorated molybdenum disulfide
AbstractThis thesis is dedicated to realizations and physical understanding of electronic and photocatalytic properties after decorating transition metals to the semiconducting molybdenum disulfide. Synthesized via facile wet chemical methods, the MoS₂-Au, MoS₂-Au-Ni and MoS₂-Ag-Ni composites were formed as binary or ternary compounds. The Au nanoparticles are stably joined to the MoS₂ matrix without deteriorating layered structures of the host. After introducing the Au nanoglue as a common buffer, a metallic contact is reached between Ni and MoS₂, and attributed to new electron migration channel via MoS₂ edge contact. Adapting the Ag as the buffer element can attach the Ni to the basal plane of the MoS₂ beside edge contact. The Ni-Ag-MoS₂ composite effectively splits water under visible light irradiation and produce hydrogen. The excellent photocatalytic activity is attributed to effective charge migration through dangling bonds at the MoS2-Ag-Ni alloy interface and the activation of MoS₂ basal planes.Original papersOriginal papers are not included in the electronic version of the dissertation.Cao, W., Pankratov, V., Huttula, M., Shi, X., Saukko, S., Huang, Z., & Zhang, M. (2015). Gold nanoparticles on MoS₂ layered crystal flakes. Materials Chemistry and Physics, 158, 89–95. https://doi.org/10.1016/j.matchemphys.2015.03.041Shi, X., Posysaev, S., Huttula, M., Pankratov, V., Hoszowska, J., Dousse, J.-C., … Cao, W. (2018). Metallic Contact between MoS₂ and Ni via Au Nanoglue. Small, 14(22), 1704526. https://doi.org/10.1002/smll.201704526Self-archived versionShi, X., Huttula, M., Pankratov, V., Hoszowska, J., Dousse, J.-C., Zeeshan, F., … Cao, W. (2018). Quantification of bonded Ni atoms for Ni-MoS₂ metallic contact through X-ray photoemission electron microscopy. Microscopy and Microanalysis, 24(S2), 458−459. https://doi.org/10.1017/S1431927618014526Self-archived versionX. Shi, M. Zhang, W. Cao, X. Wang, M. Huttula. (2018). Efficient photocatalytic hydrogen evolution via activated multilayer MoS₂. Manuscript in preparation.Shi, X., Huang, Z., Huttula, M., Li, T., Li, S., Wang, X., … Cao, W. (2018). Introducing Magnetism into 2D Nonmagnetic Inorganic Layered Crystals: A Brief Review from First-Principles Aspects. Crystals, 8(1), 24. https://doi.org/10.3390/cryst8010024Self-archived versionOsajulkaisutOsajulkaisut eivät sisälly väitöskirjan elektroniseen versioon.Cao, W., Pankratov, V., Huttula, M., Shi, X., Saukko, S., Huang, Z., & Zhang, M. (2015). Gold nanoparticles on MoS₂ layered crystal flakes. Materials Chemistry and Physics, 158, 89–95. https://doi.org/10.1016/j.matchemphys.2015.03.041Shi, X., Posysaev, S., Huttula, M., Pankratov, V., Hoszowska, J., Dousse, J.-C., … Cao, W. (2018). Metallic Contact between MoS₂ and Ni via Au Nanoglue. Small, 14(22), 1704526. https://doi.org/10.1002/smll.201704526Rinnakkaistallennettu versioShi, X., Huttula, M., Pankratov, V., Hoszowska, J., Dousse, J.-C., Zeeshan, F., … Cao, W. (2018). Quantification of bonded Ni atoms for Ni-MoS₂ metallic contact through X-ray photoemission electron microscopy. Microscopy and Microanalysis, 24(S2), 458−459. https://doi.org/10.1017/S1431927618014526Rinnakkaistallennettu versioX. Shi, M. Zhang, W. Cao, X. Wang, M. Huttula. (2018). Efficient photocatalytic hydrogen evolution via activated multilayer MoS₂. Manuscript in preparation.Shi, X., Huang, Z., Huttula, M., Li, T., Li, S., Wang, X., … Cao, W. (2018). Introducing Magnetism into 2D Nonmagnetic Inorganic Layered Crystals: A Brief Review from First-Principles Aspects. Crystals, 8(1), 24. https://doi.org/10.3390/cryst8010024Rinnakkaistallennettu versioAcademic Dissertation to be presented with the assent of the Faculty of Science, University of Oulu for public discussion in the Auditorium Saalastinsali, on September 12th, 2018, at 12 o’clock noon.Abstract
This thesis is dedicated to realizations and physical understanding of electronic and photocatalytic properties after decorating transition metals to the semiconducting molybdenum disulfide. Synthesized via facile wet chemical methods, the MoS₂-Au, MoS₂-Au-Ni and MoS₂-Ag-Ni composites were formed as binary or ternary compounds. The Au nanoparticles are stably joined to the MoS₂ matrix without deteriorating layered structures of the host. After introducing the Au nanoglue as a common buffer, a metallic contact is reached between Ni and MoS₂, and attributed to new electron migration channel via MoS₂ edge contact. Adapting the Ag as the buffer element can attach the Ni to the basal plane of the MoS₂ beside edge contact. The Ni-Ag-MoS₂ composite effectively splits water under visible light irradiation and produce hydrogen. The excellent photocatalytic activity is attributed to effective charge migration through dangling bonds at the MoS2-Ag-Ni alloy interface and the activation of MoS₂ basal planes
Complete genome sequence of a sub-subgenotype 2.1i isolate of classical swine fever virus from China
Citation: Zhang, B., Mi, S., Bao, F., Guo, H., Tu, C., Shi, J., & Gong, W. (2017). Complete genome sequence of a sub-subgenotype 2.1i isolate of classical swine fever virus from China. Genome Announcements, 5(14). doi:10.1128/genomeA.00127-17The complete genome sequence of a sub-subgenotype 2.1i isolate of classical swine fever virus (CSFV), GD317/2011, was determined. Notably, GD317/2011 is distant from the sub-subgenotype 2.1b isolate HEBZ at genes of Erns, E1, E2, P7, NS2, NS5A and the 3=-nontranslated region (3=-NTR) but is closely related to that at genes of Npro, Core, NS3, NS4A, NS4B, and NS5B. © 2017 Zhang et al
<i>Aralia lihengiana</i> J. Wen, L. Deng & X. Shi, nouvelle espèce d'Araliaceae de Chine.
Description d\u27Aralia lihengiana J. Wen, L. Deng & X. Shi du sud-ouest de la Chine. Cette espèce appartient à Aralia sect. Pentapanax (Seem.) J. Wen et semble être proche d\u27Aralia gigantea J. Wen d\u27Himalaya. Ces deux espèces ont des folioles à marge à peine serretée et des unités inflorescentielles racémeuses. Le nouveau taxon est unique dans le genre par l\u27ovaire à 3-4 ou rarement 5 loges, alors que les ovaires des autres espèces d\u27Aralia ont en général 5 loges.Aralia lihengiana J. Wen, L. Deng & X. Shi is described from southwestern China. It is a member of Aralia sect. Pentapanax (Seem.) J. Wen and an apparent close relative of the Himalayan A. gigantea J. Wen. Both species have sparsely serrate leaflet margins and racemose inflorescence units, but the new taxon is unique in the genus in bearing 3-4 or rarely 5-locular ovaries whereas other species of Aralia mostly have 5-locular ovaries
OD-characterization of almost simple groups related to
summary:In the present paper, we classify groups with the same order and degree pattern as an almost simple group related to the projective special linear simple group . As a consequence of this result we can give a positive answer to a conjecture of W. J. Shi and J. X. Bi, for all almost simple groups related to except . Also, we prove that if is an almost simple group related to except and is a finite group such that and , then
Shi arrangements and low elements in affine Coxeter groups
Given an affine Coxeter group , the corresponding Shi arrangement is a refinement of the corresponding Coxeter hyperplane arrangements that was introduced by Shi to study Kazhdan-Lusztig cells for . In particular, Shi showed that each region of the Shi arrangement contains exactly one element of minimal length in . Low elements in were introduced to study the word problem of the corresponding Artin-Tits (braid) group and turns out to produce automata to study the combinatorics of reduced words in .
In this article, we show in the case of an affine Coxeter group that the set of minimal length elements of the regions in the Shi arrangement is precisely the set of low elements, settling a conjecture of Dyer and the second author in this case. As a byproduct of our proof, we show that the descent-walls -- the walls that separate a region from the fundamental alcove -- of any region in the Shi arrangement are precisely the descent walls of the alcove of its corresponding low element.v.2 30 pages, 6 figures; to appear in Journal of the CM
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