56,173 research outputs found
Lathrobium zhui Peng and Li
No full textLathrobium zhui Peng and Li, new name Lathrobium zhui, new name, is proposed for Lathrobium pilosum Peng & Li, 2012: 74, from Zhejiang, which is a junior primary homonym of Lathrobium pilosum Gravenhorst, 1802: 56. The Gravenhorst name was moved to Tetartopeus. The replacement name is a patronym in honor of Li-Long Zhu who collected one of the type specimens.Published as part of Peng, Zhong, Li, Li-Zhen & Zhao, Mei-Jun, 2014, Seventeen new species and additional records of Lathrobium (Coleoptera, Staphylinidae) from mainland China, pp. 1-35 in Zootaxa 3780 (1) on page 34, DOI: 10.11646/zootaxa.3780.1.1, http://zenodo.org/record/28574
Lathrobium zhujianqingi Peng
No full text<i>Lathrobium zhujianqingi</i> Peng & Li, 2012 <p>(Figs 4 A–B)</p> <p> <b>Material studied</b> (16 ♂, 15 ♀♀). China: 4 ♂♂, 5 ♀♀, Guangxi Prov., Xingan County, Mt. Maoershan, 25°54’N 110°27’E, alt. 1,550–1,750 m, 24.vii.2012, Hu & Song leg.’ (SNUC). 4 ♂♂, 3 ♀♀, same data, but 25°52’N 110°24’E, alt. 2,000–2,100 m, 22.vii.2012 (SNUC); 8 ♂♂, 7 ♀♀, same data, but 25°52’N 110°25’E, alt. 1,950– 2,000 m, 23.vii.2012 (SNUC).</p> <p> <b>Comment:</b> The above specimens were found at the type locality. For illustrations of the habitus and the sexual characters see Peng <i>et al.</i> (2012), but the original illustration of the aedeagus in ventral view is mirror-inverted. A correct illustration of the aedeagus is provided in Figs 4 A–B.</p>Published as part of <i>Peng, Zhong, Li, Li-Zhen & Zhao, Mei-Jun, 2013, Two new species and additional records of Lathrobium Gravenhorst (Coleoptera: Staphylinidae: Paederinae) from Guangxi, South China, pp. 213-220 in Zootaxa 3694 (3)</i> on pages 215-216, DOI: 10.11646/zootaxa.3694.3.2, <a href="http://zenodo.org/record/217966">http://zenodo.org/record/217966</a>
Gouvernance des communautés résidentielles et contrôle étatique
No full textBo Peng, Teilhet Vanessa. Gouvernance des communautés résidentielles et contrôle étatique. In: Perspectives chinoises, n°86, 2004. pp. 14-24
Lathrobium guangdongense Peng and Li, new species
No full textLathrobium guangdongense Peng and Li, new species (Figs 21 B, 23) Type material (4 ♂♂). HOLOTYPE: ♂, labeled ‘ CHINA: Guangdong Prov., Shaoguan City Nanling N. R., 24 ° 55 'N, 113 °01'E, 15.x. 2009 alt. 1,070 m, Gao Lei leg.’. PARATYPES: 3 ♂♂, same label data as holotype (SNUC). Description. Measurements and ratios: BL 6.12–7.39, FL 2.78–2.89, HL 0.84–0.91, HW 0.88–0.96, AnL 1.83–1.91, PL 1.19–1.25, PW 0.94–1.02, EL 0.74–0.82, AL 1.17–1.18, HL/HW 0.95 –1.00, HW/PW 0.89–0.94, HL/PL 0.69–0.73, PL/PW 1.23–1.27, EL/PL 0.62–0.66. Habitus as in Fig. 21 B. Body dark brown with paler apex, legs brown, antennae brown to light brown. Head approximately as long as broad; punctation coarse and dense, somewhat sparser in median dorsal portion; interstices with very shallow microreticulation. Eyes 0.35–0.38 times as long as postocular region in dorsal view and composed of approximately 55 ommatidia. Pronotum nearly parallel-sided; punctation moderately sparser than that of head; impunctate midline broad; interstices without microreticulation. Elytra moderately short; punctation dense and moderately fine. Hind wings completely reduced. Abdomen with fine and dense punctation, that of tergite VII sparser than that of anterior tergites; interstices with very shallow microsculpture; posterior margin of tergite VII without palisade fringe. Male. Posterior margin of tergite VIII weakly convex; sternite VII (Fig. 23 A) strongly transverse, with very shallow median impression posteriorly, this impression with unmodified setae, posterior margin weakly concave in the middle; sternite VIII (Fig. 23 B) symmetric, with shallow posterior excision, pubescence unmodified; aedeagus as in Figs 23 C, D, ventral process slender; dorsal plate slender and weakly sclerotized; internal sac with several sclerotized spines of different shapes. Female. Unknown. Comparative notes. Lathrobium guangdongense resembles L. damingense Peng & Li, 2013 from Guangxi in having weakly modified male sternites VII and VIII. It is distinguished from L. damingense Peng & Li, 2013 by smaller body size, denser punctation of the head, and the morphology of the aedeagus (shape of ventral process; internal sac with several sclerotized spines). For illustrations of L. damingense see Peng et al. (2013 c). Distribution and biological notes. The type locality is situated in the Nanling to the northwest of Shaoguan, northern Guangzhou. The specimens were sifted from leaf litter in a spruce forest at an altitude of 1,070 m. Etymology. The specific epithet is derived from Guangdong Province, where the type locality is situated.Published as part of Peng, Zhong, Li, Li-Zhen & Zhao, Mei-Jun, 2014, Seventeen new species and additional records of Lathrobium (Coleoptera, Staphylinidae) from mainland China, pp. 1-35 in Zootaxa 3780 (1) on pages 32-33, DOI: 10.11646/zootaxa.3780.1.1, http://zenodo.org/record/28574
Improved stability criterion for neutral type system with time-varying delay
No full textThis paper studies the stability for neutral type system with time-varying delay. Based on Lyapunov functional constructed and LMI techniques, a new stability criterion with less conservatism is derived. Finally the numerical simulation and comparison are made to demonstrate the effectiveness and advantage of our theoretical results given. © 2012 ISSN 2185-2766.Bo Wang, Peng Shi, Jun Wang, Yongduan Song and Shouming Zhon
Isolation and structure characterization of cytotoxic alkaloids from Micromelum integerrimum
No full textCao, Nan-Kai, Chen, Yue-Mei, Zhu, Si-Si, Zeng, Ke-Wu, Zhao, Ming-Bo, Li, Jun, Tu, Peng-Fei, Jiang, Yong (2020): Isolation and structure characterization of cytotoxic alkaloids from Micromelum integerrimum. Phytochemistry (112463) 178: 1-9, DOI: 10.1016/j.phytochem.2020.112463, URL: http://dx.doi.org/10.1016/j.phytochem.2020.11246
Lathrobium yangshimuense Peng
No full textLathrobium yangshimuense Peng and L.-Z. Li, new species (Map 1, Figs 9 B, 11) Type material. HOLOTYPE: Ƌ, labeled ‘ China: Jiangxi Prov., Luxi County, Yangshimu, 27°35'07''N 114°15'41''E, 1360 m, 24.X.2013, Peng, Shen & Yan leg.’ (SNUC). Paratypes: 1 Ƌ, same label data as holotype (SNUC); 1 ♀, same data, but ‘ 27°34'25''N 114°14'14''E, 910–1550 m, 16.VII.2013, Song, Yin & Yu leg.’ (SNUC). Description. Measurements (in mm) and ratios: BL 7.42–7.58, FL 3.07–3.12, HL 0.80–0.83, HW 0.78–0.81, AnL 1.67–1.79, PL 1.04–1.10, PW 0.83–0.86, EL 0.59–0.67, AL 1.11, HL/HW 1.00–1.02, HW/PW 0.93–0.94, HL/PL 0.75–0.77, PL/PW 1.25–1.28, EL/PL 0.57–0.61. Habitus as in Fig. 9 B. Body reddish brown, legs yellowish brown, antennae reddish brown to yellowish brown. Head: punctation coarse and moderately dense, and distinctly sparser in median dorsal portion; interstices with distinct microreticulation. Eyes small and composed of approximately 30 ommatidia. Pronotum parallel-sided; punctation sparser than that of head; impunctate midline broad; interstices without microsculpture. Elytral punctation moderately dense and shallow. Hind wings completely reduced. Protarsi with distinct sexual dimorphism. Abdomen with fine and dense punctation, punctation of tergite VII slightly less sparse than that of anterior tergites; interstices with shallow, but distinct microsculpture; posterior margin of tergite VII without palisade fringe; tergite VIII without sexual dimorphism, posterior margin (Fig. 11 A) convex in both sexes. Male. Sternites III–VI unmodified; sternite VII (Fig. 11 D) strongly transverse, with very shallow median depression posteriorly, this impression without distinctly modified setae, posterior margin broadly concave; sternite VIII (Fig. 11 E) oblong and symmetric, with longitudinal impression extending along whole sternite, middle of sternite narrowly without setae, posterior excision V-shaped and stout, at margins with blackish setae; aedeagus as in Figs 11 F, G; ventral process weakly asymmetric in ventral view and apically acute; dorsal plate with long and strongly sclerotized apical portion, and with thin basal portion; internal sac with a long sclerotized spine. Female. Sternite VIII as in Fig. 11 B, posterior margin distinctly convex; tergite IX (Fig. 11 C) with divided median portion and moderately long postero-lateral processes; tergite X (Fig. 11 C) 4.8 times as long as anteromedian portion of tergite IX. Comparative notes. The new species resembles L. badagongense Peng & Li, 2014 from Badagong Shan, Hunan in the shape of the male sternite VIII, the morphology of the aedeagus (shape of ventral process; distinctly sclerotized apical portion of dorsal plate) and the female sexual characters (shape of sternite VIII; divided median portion of tergite IX). It is distinguished from L. badagongense by reddish brown coloration, the chaetotaxy of the male sternite VIII, the internal structures of the aedeagus, as well as the shape of the female tergite VIII. For illustrations of L. badagongense see Peng et al. (2014). Distribution and natural history. The species was collected in two localities in Yangshimu to the east of Luxi, western Jiangxi. The specimens were sifted from leaf litter in a coniferous forest at altitudes between 910 and 1550 m, partly together with L. taiye. Etymology. The species is named after its type locality (Yangshimu).Published as part of Peng, Zhong, Li, Li-Zhen & Zhao, Mei-Jun, 2016, On the Lathrobium fauna of the Luoxiao Mountains, Central China, pp. 385-402 in Zootaxa 4158 (3) on pages 398-400, DOI: 10.11646/zootaxa.4158.3.5, http://zenodo.org/record/27221
Lathrobium shuguangi Peng
No full textLathrobium shuguangi Peng and L.-Z. Li, new species (Map 1, Figs 5 C, 8) Type material. HOLOTYPE: Ƌ, labeled ‘ Jiangxi Prov., Pingxiang, Wugong Shan, 27°27'39''N 114°10'03''E, 1340– 1400 m, 19.VII.2013, Song, Yu & Yin leg.’ (SNUC). Description. Measurements (in mm) and ratios: BL 8.73, FL 4.28, HL 1.33, HW 1.30, AnL 2.28, PL 1.67, PW 1.30, EL 0.83, AL 1.63, HL/HW 1.02, HW/PW 1.00, HL/PL 0.80, PL/PW 1.28, EL/PL 0.50. Habitus as in Fig. 5 C. Body dark brown, legs light brown, antennae brown. Head: punctation moderately fine and moderately dense, somewhat sparser in median dorsal portion; interstices with shallow microsculpture. Eyes moderately small and composed of approximately 60 ommatidia. Pronotum with weakly convex lateral margins in dorsal view; punctation somewhat sparser than that of head; impunctate midline broad; interstices without microsculpture. Elytral punctation dense and shallow, defined to ill-defined. Hind wings completely reduced. Abdomen with fine and rather dense punctation, that of tergite VII sparser than that of anterior tergites; interstices with shallow microsculpture; posterior margin of tergite VII without palisade fringe. Male. Posterior margin of tergite VIII weakly convex; sternites III–VI unmodified; sternite VII (Fig. 8 A) strongly transverse, with dense dark setae in shallow median impression posteriorly, posterior margin broadly concave in the middle, pubescence unmodified, except for few modified short marginal setae near posterior concavity; sternite VIII (Fig. 8 B) transverse, with deep median impression posteriorly, posterior excision deep and symmetric, margins of this excision with short, blackish setae; aedeagus as in Figs 8 C, D, ventral process long and asymmetric; dorsal plate moderately sclerotized and thin; internal sac with a long sclerotized spine. Female. Unknown. Comparative notes. The similar shape and chaetotaxy of the male sternite VIII (posterior excision with dense short and dark setae), the morphology of the aedeagus (asymmetric ventral process; presence of a long sclerotized spine in internal sac; thin dorsal plate) and the external characters (large body; finely punctate head) suggest that L. shuguangi is allied to L. hujiayaoi Peng & Li, 2013 from Maoer Shan, Guangxi. It is distinguished from L. hujiayaoi by the lighter coloration of the body, the shallow median impression of the male sternite VII and the shape of the male sternite VIII. For illustrations of L. hujiayaoi see Peng et al. (2013). Distribution and natural history. The type locality is situated in the Wugong Shan to the south of Pingxiang, western Jiangxi. The specimen was sifted from leaf litter in mixed forests at an altitude of 1340–1400 m, together with L. taiye. Etymology. This species is dedicated to Mr. Shu-Guang Peng, the first author’s father, who supported us on our field trips.Published as part of Peng, Zhong, Li, Li-Zhen & Zhao, Mei-Jun, 2016, On the Lathrobium fauna of the Luoxiao Mountains, Central China, pp. 385-402 in Zootaxa 4158 (3) on pages 395-396, DOI: 10.11646/zootaxa.4158.3.5, http://zenodo.org/record/27221
Lathrobium bamianense Peng
No full textLathrobium bamianense Peng and L.-Z. Li, new species (Map 1, Figs 1 A, 2) Type material. HOLOTYPE: Ƌ, labeled ‘ China: Hunan Prov., Guidong County, Bamian Shan, 25°59'53''N 113°41'54''E, 1760 m, 04.VI.2014, Peng & Shen leg.’ (SNUC). Paratypes: 1 Ƌ, 4 ♀♀, same label data as holotype (SNUC); 1 Ƌ, 1 ♀, same data, but ‘ 25°59'33''N 113°42'25''E, 1510 m, 01.VI.2014, Peng, Shen, Yu & Yan leg’ (SNUC). Description. Measurements (in mm) and ratios: BL 6.12–7.78, FL 3.17–3.42, HL 0.87–0.93, HW 0.90–0.93, AnL 1.80–1.88, PL 1.15–1.24, PW 0.96–1.02, EL 0.57–0.65, AL 1.41–1.44, HL/HW 0.97–1.00, HW/PW 0.91– 0.96, HL/PL 0.74–0.76, PL/PW 1.20–1.22, EL/PL 0.50–0.52. Habitus as in Fig. 1 A. Body reddish brown, legs yellowish brown, antennae reddish brown to yellowish brown. Head: punctation moderately coarse and sparse, and distinctly sparser in median dorsal portion; interstices with shallow microreticulation. Eyes small and composed of approximately 30 ommatidia. Pronotum nearly parallel-sided; punctation somewhat denser than that of head; impunctate midline broad; interstices without microsculpture. Elytral punctation moderately dense and shallow. Hind wings completely reduced. Protarsomeres I–IV with weak sexual dimorphism. Abdomen with fine and dense punctation, punctation of tergite VII slightly less dense than that of anterior tergites; interstices with shallow microsculpture; posterior margin of tergite VII without palisade fringe; tergite VIII with weakly pronounced sexual dimorphism. Male. Posterior margin of tergite VIII truncate; sternites III–VI unmodified; sternite VII (Fig. 2 D) strongly transverse, with shallow median impression posteriorly, this impression with rather weakly modified setae directed obliquely postero-mediad, posterior margin concave in the middle; sternite VIII (Fig. 2 E) weakly transverse, symmetric, with longitudinal and shallow impression in the middle, and with shallow, broadly V-shaped posterior excision; aedeagus as in Figs 2 F, G, ventral process slender and moderately long, somewhat asymmetric in ventral view; dorsal plate with large and sclerotized apical portion, and with short basal portion; internal sac with two sclerotized spines of different shapes. Female. Posterior margin of tergite VIII (Fig. 2 A) weakly convex; sternite VIII as in Fig. 2 B, convexly produced posteriorly; tergite IX (Fig. 2 C) with very short, medially undivided antero-median portion and moderately long postero-lateral processes; tergite X (Fig. 2 C) 3.8 times as long as antero-median portion of tergite IX. Comparative notes. Based on the morphology of the aedeagus, this species may be allied to L. jinyuae, from which it is distinguished by somewhat smaller body size, the lighter coloration of the body, the chaetotaxy of the male sternite VII and the nearly straight ventral process of the aedeagus. Lathrobium bamianense is distinguished from the syntopic L. fumingi by smaller body size, reddish coloration of the body, the broadly V-shaped posterior excision of the male sternite VIII, by the shape of ventral process and dorsal plate of the aedeagus, as well as the shape of the female tergite VIII. Distribution and natural history. The type locality is situated in the Bamian Shan to the west of Guidong, eastern Hunan. The specimens were sifted from leaf litter and humus in a rhododendron forest at altitudes of 1510 and 1760 m, partly together with L. fumingi. Etymology. The species is named after its type locality (Bamian Shan).Published as part of Peng, Zhong, Li, Li-Zhen & Zhao, Mei-Jun, 2016, On the Lathrobium fauna of the Luoxiao Mountains, Central China, pp. 385-402 in Zootaxa 4158 (3) on pages 386-388, DOI: 10.11646/zootaxa.4158.3.5, http://zenodo.org/record/27221
Fuzzy sliding mode control design for a class of disturbed systems
No full textLink to a related website: https://digital.library.adelaide.edu.au/dspace/bitstream/2440/84469/2/hdl_84469.pdf, Open Access via UnpaywallThis paper discusses the problem of the fuzzy sliding mode control for a class of disturbed systems. First, a fuzzy auxiliary controller is constructed based on a feedback signal not only to estimate the unknown control term, but also participates in the sliding mode control due to the fuzzy rule employed. Then, we extend our theory into the cases, where some kind of system information can not be obtained, for better use of our theoretical results in real engineering. Finally, some typical numerical examples are included to demonstrate the effectiveness and advantage of the designed sliding mode controller.Bo Wang, Peng Shi, Hamid Reza Karim
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