282,707 research outputs found
Hecalusina He, Zhang & Webb 2008
No full textGenus Hecalusina He, Zhang & Webb (Figs 178–202) Type species: Hecalusina unispinosa He, Zhang & Webb 2008: 27. Remarks. See He et al. 2008 for complete description. This genus is easily distinguished from other Chinese Hecalina by the absence of color bands on head and pronotum and the elongate overall shape with a long vertex. Additionally, the aedeagus lacks apical processes but has a recurved basal process, the male pygofer has an inner process (Fig. 221), the subgenital plates bear mesal processes ((Figs. 223–224), and the 1 st valvula of the female has a long row of short vertical striations (Figs. 212, 213). As discussed in the Introduction, this genus is not closely related to other Hecalini, but is retained in the tribe until a well-supported alternate tribal placement is determined.Published as part of He, Zhiqiang, Zhang, Yalin, Mckamey, Stuart H. & Zahniser, James N., 2019, The Chinese Hecalina (Hemiptera: Cicadellidae: Deltocephalinae: Hecalini) with descriptions of a new genus and seven new species, pp. 257-285 in Zootaxa 4679 (2) on page 279, DOI: 10.11646/zootaxa.4679.2.3, http://zenodo.org/record/377250
Impetunemobius brunneis He & Zhang & Ma 2021, sp. n.
No full textImpetunemobius brunneis He & Ma, sp. n. Distribution: Guangxi. Parapteronemobius dibrachiatus (Ma & Zhang, 2015) Distribution: Guangdong.Published as part of He, Zhixin, Zhang, Tao & Ma, Libin, 2021, Crickets of subfamily Nemobiinae Saussure, 1877 (Orthoptera: Grylloidea; Trigonidiidae) from China with descriptions of new genera and new species, pp. 1-70 in Zootaxa 5011 (1) on page 5, DOI: 10.11646/zootaxa.5011.1.1, http://zenodo.org/record/515779
Homonemobius amare He & Zhang & Ma 2021, sp. n.
No full textHomonemobius amare He & Ma, sp. n. Distribution: Yunnan.Published as part of He, Zhixin, Zhang, Tao & Ma, Libin, 2021, Crickets of subfamily Nemobiinae Saussure, 1877 (Orthoptera: Grylloidea; Trigonidiidae) from China with descriptions of new genera and new species, pp. 1-70 in Zootaxa 5011 (1) on page 5, DOI: 10.11646/zootaxa.5011.1.1, http://zenodo.org/record/515779
Fibunemobius tamquam He & Zhang & Ma 2021, sp. n.
No full textFibunemobius tamquam He & Ma, sp. n. Distribution: Xizang. Giganemobius jianfenglingensis (Liu & Shi, 2016) Distribution: Hainan.Published as part of He, Zhixin, Zhang, Tao & Ma, Libin, 2021, Crickets of subfamily Nemobiinae Saussure, 1877 (Orthoptera: Grylloidea; Trigonidiidae) from China with descriptions of new genera and new species, pp. 1-70 in Zootaxa 5011 (1) on pages 4-5, DOI: 10.11646/zootaxa.5011.1.1, http://zenodo.org/record/515779
Claranemobius yaoquensis He & Zhang & Ma 2021, sp. n.
No full textClaranemobius yaoquensis He & Ma, sp. n. Distribution: Yunnan.Published as part of He, Zhixin, Zhang, Tao & Ma, Libin, 2021, Crickets of subfamily Nemobiinae Saussure, 1877 (Orthoptera: Grylloidea; Trigonidiidae) from China with descriptions of new genera and new species, pp. 1-70 in Zootaxa 5011 (1) on page 4, DOI: 10.11646/zootaxa.5011.1.1, http://zenodo.org/record/515779
Erexitonemobius bellus He & Zhang & Ma 2021, sp. n.
No full textErexitonemobius bellus He & Ma, sp. n. Distribution: Xizang.Published as part of He, Zhixin, Zhang, Tao & Ma, Libin, 2021, Crickets of subfamily Nemobiinae Saussure, 1877 (Orthoptera: Grylloidea; Trigonidiidae) from China with descriptions of new genera and new species, pp. 1-70 in Zootaxa 5011 (1) on page 4, DOI: 10.11646/zootaxa.5011.1.1, http://zenodo.org/record/515779
Local cohomology associated to the radical of a group action on a noetherian algebra
No full textAn arbitrary group action on an algebra R results in an ideal r of R. This ideal r fits into the classical radical theory, and will be called the radical of the group action. If R is a noetherian algebra with finite GK-dimension and G is a finite group, then the difference between the GK-dimensions of R and that of R/r is called the pertinency of the group action. We provide some methods to find elements of the radical, which helps to calculate the pertinency of some special group actions. The r-adic local cohomology of R is related to the singularities of the invariant subalgebra R-G. We establish an equivalence between the quotient category of the invariant subalgebra RG and that of the skew group ring R * G through the torsion theory associated to the radical r. With the help of the equivalence, we show that the invariant subalgebra R-G will inherit certain a Cohen-Macaulay property from R.We would like to thank the referee for his/her valuble suggestions and comments. Thanks to James Zhang for many helpful conversations. J.-W. He is supported by NSFC (No. 11571239, 11671341) and ZJNSF (No. LY19A010011)., and Y. Zhang is supported by an FWO grant
The directivity of noise radiated by a railway wheel in situ
No full textDataset to support paper in JRRT accepted for publication:
Zhang, X., He, Y., Thompson, D., & Hu, Z. (in press). The directivity of noise radiated by a railway wheel in situ. Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit.
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Fangamanus morrisoni He & Zhang & Mckamey & Zahniser 2019, n. comb.
No full textFangamanus morrisoni (Kwon and Lee), n. comb. Hecalus morrisoni Kwon and Lee, 1979 a:42 [sp. n.] Memnonia morrisoni; Hamilton 2000: 472 [n. comb.]Published as part of He, Zhiqiang, Zhang, Yalin, Mckamey, Stuart H. & Zahniser, James N., 2019, The Chinese Hecalina (Hemiptera: Cicadellidae: Deltocephalinae: Hecalini) with descriptions of a new genus and seven new species, pp. 257-285 in Zootaxa 4679 (2) on page 278, DOI: 10.11646/zootaxa.4679.2.3, http://zenodo.org/record/377250
Art Forum - Zhi, Zhang Shou
No full text12 May 1999. Zhang Shouzhi is professor of ceramics at Beijing Central Academy of Art and Design. He is highly respected for his design of Zhisha ware and for spectacular crystalline iron glazes. Zhang Shouzhi is Visiting Artist in the CSA Ceramics Workshop
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