638,137 research outputs found
Phortica (Ashima) pavriarista Cheng & Chen 2008
No full text14) Phortica (Ashima) pavriarista Cheng & Chen, 2008 Phortica (Phortica) pavriarista Cheng & Chen in Cheng et al., 2008: 620. Phortica speculum (Maca & Lin, 1993): Chen et al., 2005b: 420 (part, misidentification). Phortica (Ashima) pavriarista: Chen & Máca, 2012: 507. Diagnosis. Arista only very slightly expanded apically (“Fig. 14” in Cheng et al. 2008); all postgonites strongly sclerotized, apically more or less pointed; posterior postgonite on only one lateral lobe of aedeagal sheath; lateral lobes submedially separated from each other; one lateral lobe of aedeagal sheath with 2 relatively close anterior postgonites (“Fig. 17” in Cheng et al. 2008). Supplementary description (not repeating characters common to P. foliiseta). Supracervical setae 12–14. Dorsomedial, tentorial apodeme 1/2 as long as basal, parallel portion of dorsolateral, tentorial apodeme. Longest, dorsal branch of arista shorter than longest seta on pedicel. Cibarial, medial sensilla 9–10 per side; posterior sensilla 4–6 per side. All tarsi with gray tarsomere V. The antisymmetry is observed in the postgonites: in A-type, the left lateral lobe bears 2 anterior postgonites, and the right lobe 1 posterior and 1 anterior postgonites (“Fig. 17” in Cheng et al. 2008); but in B-type, vice versa. Specimen examined. Thailand: 1♂ (B-type), above Sangwal, Doi Suthep, Chiang Mai, 1,250 m a.s.l., 6.i.2008, H. Bänziger leg. (SEHU). Distribution. China (Yunnan), Thailand *. Remarks. This species resembles P. andreagigoni in having the less expanded apex of arista, but can be distinguished from it by the diagnostic characters.Published as part of Toda, Masanori J., Bänziger, Hans, Sati, Pradeep C., Fartyal, Rajendra S., Suwito, Awit & Katoh, Toru, 2020, Taxonomy and evolution of asymmetric male genitalia in the subgenus Ashima Chen (Diptera: Drosophilidae: Phortica Schiner), with descriptions of seven new species, pp. 1-54 in Zootaxa 4789 (1) on page 20, DOI: 10.11646/zootaxa.4789.1.1, http://zenodo.org/record/388461
Phortica (Ashima) nudiarista Cheng & Chen 2008
No full text15) Phortica (Ashima) nudiarista Cheng & Chen, 2008 Phortica (Phortica) nudiarista Cheng & Chen in Cheng et al., 2008: 619. Phortica brachychaeta Chen & Toda in Chen et al., 2005b: 422 (part, misidentification). Phortica (Ashima) nudiarista: Chen & Máca, 2012: 507. Diagnosis. Arista apically with distinct, leaf-like expansion narrower than long and apically tapering and pointed but neither dorsal nor ventral branches (“ Fig. 8 ” in Cheng et al. 2008); one lateral lobe of aedeagal sheath with 2 anterior postgonites widely separated; the other lateral lobe with 1 posterior and 1 anterior postgonites (“Fig. 11” in Cheng et al. 2008). Supplementary description (not repeating characters common to P. pavriarista). Supracervical setae 9–11. Cibarial, medial sensilla approximately 9 per side; posterior sensilla approximately 5 per side. The antisymmetry is observed in the postgonites: in A-type, the left lateral lobe bears 2 anterior postgonites, and the right lobe 1 posterior and 1 anterior postgonites (“Fig. 11” in Cheng et al. 2008); but in B-type, vice versa. Specimens examined. China: 1♂ (B-type), Zhengxing, Jingdong, Yunnan, 24.vii.2009 (SEHU). Thailand: 1♂ (B-type), above Sangwal, Doi Suthep, Chiang Mai, 1,250 m a.s.l., 24.vii.2008, H. Bänziger leg. (SEHU); 1♂ (Atype), above Sangwal, Doi Suthep, Chiang Mai, 1,250 m a.s.l., 9.i.2008, H. Bänziger leg. (SEHU); 1♂ (B-type), path to Pha Lad, Doi Suthep, Chiang Mai, 5.x.2008, H. Bänziger leg. (SEHU); 1♂ (B-type), path to Bung La U O, Ban Thi Pho Ji, Umphang Distr., Tak, ~ 800 m, 22.i.2008, H. Bänziger leg. (SEHU). Malaysia: 1♂ (B-type), Ulu Gombak, Selangor, 9.xii.2013, M.J. Toda leg. (SEHU). India: 1♂ (B-type), Uttarakhand, Chamoli Distr., Simli (Narainbagar), 5.ix.2010, P.C. Sati leg. (SEHU). Distribution. China (Yunnan), Thailand *, Peninsular Malaysia *, India (Uttarakhand)*. Remarks. This species resembles P. pavriarista in the morphology of the aedeagal sheath and postgonites, but can be distinguished from it by the diagnostic characters.Published as part of Toda, Masanori J., Bänziger, Hans, Sati, Pradeep C., Fartyal, Rajendra S., Suwito, Awit & Katoh, Toru, 2020, Taxonomy and evolution of asymmetric male genitalia in the subgenus Ashima Chen (Diptera: Drosophilidae: Phortica Schiner), with descriptions of seven new species, pp. 1-54 in Zootaxa 4789 (1) on page 20, DOI: 10.11646/zootaxa.4789.1.1, http://zenodo.org/record/388461
Stegana (Oxyphortica) mediospinosa Cheng, Xu & Chen, 2010, sp. nov.
No full textStegana (Oxyphortica) mediospinosa sp. nov. (Figs 1–4) Diagnosis. This species, very similar to S. (O.) setifrons in the shape of gonopods, can be differentiated from it by having the surstylus slightly inward protruded ventrally, with one sclerotized process dorsally and one strong prensiseta subbasally (Fig. 2). Description. Male and female: Frons almost dark brown. Face, clypeus and gena yellow. Mesoscutum yellow in male, brownish yellow in female. Pleura yellow below. Scutellum yellow to brownish. Abdominal tergites 2 nd and 3 rd grayish brown, 4 th to 6 th black; sternites yellow, 6 th and 7 th tergites brown to dark brown in female. Measurements. BL = 3.25 mm in the holotype (range in 53 4 ΨΨ paratypes: 2.66–3.03 in 3, 3.35– 3.50 in ΨΨ), ThL = 1.40 mm (1.16–1.34 in 3, 1.26–1.50 in ΨΨ), WL = 2.95 mm (2.08–2.33 in 3, 2.80– 3.20 in ΨΨ), WW = 1.12 mm (0.98–1.13 in 3, 1.04–1.24 ΨΨ), arb = 8 / 4 (7–9 / 4–5), avd = 1.00 (0.76 –1.00), adf = 2.00 (1.18–2.11), flw = 2.00 (1.56–1.90), FW/HW = 0.37 (0.35–0.43), ch/o = 0.08 (0.07–0.11), prorb = 1.25 (1.07–1.29), rcorb = 0.75 (0.65–0.86), vb = 0.70 (0.50–0.71), dcl = 0.51 (0.37–0.55), presctl = 0.55 (0.50–0.60), sctl = 0.92 (1.07–1.24), sterno = 0.71 (0.72–0.89), orbito = 1.56 (1.71–2.33), dcp = 0.30 (0.26– 0.35), sctlp = 0.91 (0.84–1.12), C = 3.17 (2.70–3.20), 4 c = 0.73 (0.74–0.89), 4 v = 1.52 (1.58–2.06), 5 x = 0.83 (1.00– 1.27), ac = 4.00 (3.67–3.93), M = 0.44 (0.45–0.48), C 3 F = 0.79 (0.74–0.93). Specimens examined. Holotype 3 (SCAU, No. 120486), CHINA: Mengyang (22 ° 20 'N, 100 ° 51 'E), Xishuangbanna, Yunnan, 700 m, 14.ix. 2002, H.W. Chen. Paratypes: CHINA: 2 ΨΨ (SCAU, Nos 120487,88), same data as holotype; 43 1 Ψ (KIZ) 53 (SCAU, Nos 120489 - 93), 23 1 Ψ (SCAU, Nos 120494 - 96), Menglun, Xishuangbanna, Yunnan, 21 ° 41 'N, 101 ° 25 'E, 700–900 m, 12.viii. 2001, M.J. Toda, 22.ix. 2003, H.W. Chen, 16.iv. 2007, H.W. Chen; 23 6 ΨΨ (KIZ), Mengla, Xishuangbanna, Yunnan, 21 ° 28 ΄ N, 101 ° 38 ΄ E, alt. 600 m, 22–25.iv. 2007, J.J. Gao. LAOS: 23 (SCAU, Nos 120497, 98), Reu Gnomnolat, 680 m, 25.v. 2007, X.M. Wang. Etymology. A combination of the Latin words: medius and spinosus, referring to the surstylus submedially with 1 strong prensiseta. Distribution. China (Yunnan), Laos.Published as part of Cheng, Yu, Xu, Miaofeng & Chen, Hongwei, 2010, The Stegana (Oxyphortica) convergens species group from the Oriental region (Diptera: Drosophilidae), pp. 57-63 in Zootaxa 2531 on pages 59-60, DOI: 10.5281/zenodo.19654
Stegana (Steganina) mengla Cheng, Gao & Chen, 2009, sp. nov.
No full text<i>Stegana</i> (<i>Steganina</i>) <i>mengla</i> sp. nov. <p>(Figs 15–18)</p> <p> <b>Specimens examined.</b> Holotype ♂ (SCAU, No. 120639), CHINA: Mengla, Xishuangbanna, Yunnan, 600 m, <i>ex</i> tussock, 10.ix.2002, HW Chen. Paratypes: CHINA: 1♂ 1♀ (SCAU, Nos 120640, 41), same data as holotype; 8♂ 8♀ (2♂ 2♀ in KIZ; 5♂ 5♀ in SCAU, Nos 120642-51; 1♂ 1♀ in SEHU), same data as holotype except for 21–24.iv.2007, HW Chen, JJ Gao, F Zhao.</p> <p> <b>Diagnosis.</b> Aedeagus composed of 1 pair of acute, rod-like processes, 1 pair of lobe-like processes bearing fringe cilia and 1 arcuate process bearing sparse cilia (Fig. 18); gonopods protruded medio-dorsally and -ventrally (Fig. 18).</p> <p> <b>Description.</b> Male and female: Frons shiny, yellow, lacking sporadic, minute setulae. Pedicel yellow; first flagellomere almost yellow, black apically. Clypeus almost black. Palpus yellow basally, black distally. Thorax yellow, with brown, longitudinal stripes submedially and black, longitudinal stripes laterally. Postpronotal lobe brown on upper 1/3, yellow on lower 2/3. Scutellum brown. Katepisternum dark brown on upper 2/3 part, yellow on lower 1/3 part. Fore femur with 5–6 setae on distal part of ventral surface. Legs brown to black, yellow-brown on all knee joints and tarsomeres. All abdominal tergites brown. Third to fifth sternites dark brown. Male terminalia: Epandrium with approximately 28 setae near posterior to ventral margin on each body-side (Fig. 15). Surstylus narrowed distally (Figs 15, 16). Cercus lacking pubescence (Fig. 15). Plate between hypandrium and aedeagus lacking pubescence (Fig. 18).</p> <p> <b>Measurements.</b> BL = 3.24 mm in holotype (range in 4♂ 5♀ paratypes: 2.84–3.36 mm in ♂, 3.20–3.84 mm in ♀); ThL = 1.75 mm (1.56–1.75 mm in ♂, 1.63–1.97 mm in ♀); WL = 2.72 mm (2.47–2.69 mm in ♂, 2.63–3.12 mm in ♀); WW = 1.46 mm (1.28–1.44 mm in ♂, 1.38–1.62 mm in ♀). Indices: arb = 10/7 (10–12/ 7–9), avd = 0.65 (0.67–0.80), adf = 1.67 (1.38–1.77), flw = 2.08 (1.77–2.15), FW/HW = 0.38 (0.38–0.42), ch/ o = 0.08 (0.08–0.09), prorb = 1.00 (0.92–1.04), rcorb = 0.96 (0.81–0.92), vb = 0.27 (0.22–0.33), dcl = 0.52 (0.47–0.61), presctl = 0.65 (0.58–0.70), sctl = 1.48 (1.36–1.65), sterno = 0.84 (0.89–0.92), orbito = 2.63 (2.00–2.71), dcp = 0.20 (0.18–0.23), sctlp = 1.68 (1.60–2.11), C = 2.14 (2.00–2.17), 4c = 1.03 (1.06–1.20), 4v = 1.61 (1.62–1.95), 5x = 1.29 (1.13–1.31), ac = 9.25 (9.00–11.67), M = 0.50 (0.47–0.56), C3F = 0.74 (0.68– 0.78).</p> <p> <b>Distribution.</b> China (Yunnan).</p> <p> <b>Etymology.</b> The specific name means “tea garden” in the language of Dai, a native people of Xishuangbanna.</p>Published as part of <i>Cheng, Yu, Gao, Jian-Jun & Chen, Hong-Wei, 2009, Stegana ornatipes species group from the Oriental Region (Diptera: Drosophilidae), pp. 37-48 in Zootaxa 2216 (1)</i> on pages 43-44, DOI: 10.11646/zootaxa.2216.1.3, <a href="http://zenodo.org/record/5321864">http://zenodo.org/record/5321864</a>
Stegana (Oxyphortica) apicopubescens Cheng, Xu & Chen, 2010, sp. nov.
No full textStegana (Oxyphortica) apicopubescens sp. nov. (Figs 5–8) Diagnosis. Surstylus strongly protruded anteroventrally, with 2 strong prensisetae dorsally (Fig. 6). This species is somewhat similar to S. (O.) apicosetosa sp. nov., see under that species. Description. Frons dark brown. Face yellow. Gena and clypeus brown. Mesoscutum yellow medially, brownish laterally. Pleura yellow below. Scutellum brownish. All abdominal tergites yellow medially, brown on lateral and posterior margins. Sternites yellow, tergites 6 th and 7 th brown to dark brown in female. Measurements. BL = 2.75 mm in holotype (range in 43 5 ΨΨ paratypes: 2.60–2.85 in 3, 2.78–3.52 in ΨΨ), ThL = 1.16 mm (1.18–1.20 in 3, 1.24–1.44 in ΨΨ), WL = 2.55 mm (2.50–2.60 in 3, 2.41–2.75 in ΨΨ), WW =1.00 mm (0.90–1.02 in 3, 1.13–128 in ΨΨ), arb = 7 / 4 (7–8 / 4–5), avd = 0.65 (0.62–0.95), adf = 2.25 (1.83–2.63), flw = 1.50 (1.75–2.13), FW/HW = 0.44 (0.40–0.47), ch/o = 0.08 (0.08–0.10), prorb = 1.36 (1.16–1.68), rcorb = 0.95 (0.77 –1.00), vb = 0.78 (0.59–0.75), dcl = 0.13 (0.12–0.49), presctl = 0.58 (0.43– 0.65), sctl = 1.18 (1.15–1.26), sterno = 0.81 (0.73–0.92), orbito = 2.50 (1.40 –2.00), dcp = 0.36 (0.25–0.34), sctlp = 1.19 (0.83–1.33), C = 3.36 (2.53–3.59), 4 c = 0.77 (0.68–0.91), 4 v = 1.82 (1.68–1.88), 5 x = 1.30 (1.00– 1.47), ac = 4.30 (3.36–5.33), M = 0.43 (0.43–0.57), C 3 F = 0.86 (0.81–0.93). Specimens examined. Holotype 3 (SCAU, No. 120499), CHINA: Maoershan, Guilin, Guangxi, 25 ° 51 ΄ N, 110 ° 27 ΄ E, alt. 500 m, 18.x. 2004, H.W. Chen. Paratypes: 43 (SCAU, Nos 120500 -03), same data as holotype, H.L. Cao, M.F. Xu & X.L. Zhan; 23 (SCAU, Nos 120504, 05), Chongzou, Guangxi, 22 ° 33 ΄ N, 106 ° 92 ΄ E, alt. 230 m, 23,24. viii. 2004, H.W. Chen; 73 9 ΨΨ (23 3 ΨΨ in KIZ; 53 6 ΨΨ in SCAU, Nos 120506 - 16), Huolushan, Guangdong, 23 ° 11 ΄ N, 113 ° 22 ΄ E, alt. 80 m, 5.iv. 2005, M.F. Xu. Etymology. A combination of the Latin words: apex and pubescens, referring to the gonopods with pubescence. Distribution. China (Guangdong, Guangxi).Published as part of Cheng, Yu, Xu, Miaofeng & Chen, Hongwei, 2010, The Stegana (Oxyphortica) convergens species group from the Oriental region (Diptera: Drosophilidae), pp. 57-63 in Zootaxa 2531 on pages 60-61, DOI: 10.5281/zenodo.19654
A Study on Luo Zhi Cheng\ue2s Historical narrative poems
No full textLuo Zhi Cheng is an important poet in the field of Taiwanese modern poetry, who is known for distinctive linguistic style and intense creative consciousness that are respected. Based on his powerful imagination and flourishing creativity as two primary advantages, through the mediation of poetry, prose, remarks, and commentaries, he maximally amplifies the implication of literature, and thereby composes himself and enriches the character. Distinguished from the majority of researchers focusing on Luo\ue2s lyric works, this study particularly found a writing context of \ue2avoidance of lyric sensibility\ue2 in Luo\ue2s poems, that is, his series of works historical themes in the form of long poems utilizing narrative skills to exhibit the remarkable consistency between the internality and the externality of the author.
\ue3\ue3This study conducted a comparative investigation of Luo\ue2s poetry work (The Book of Zhuzi) and prose works (Austral Court\ue2s Notandum and The Initiation of Civilization) to build a relatively more multi-faceted \ue2author\ue2s image of Luo Zhi Cheng\ue2 according to the writing of works of historical themes. Using the methodology of narratology, I departed from the internality of the text (the collection of poems) to identify how Luo forms the ideal spectrum of character by shaping historical persons; and meanwhile, I equally departed from the collections of prose to grasp the external information of the texts, and thereby clarified that Luo may treat \ue2writing, individual, and society\ue2 as a process of self-fulfillment. It is the two corresponding identities \ue2poet\ue2 and \ue2the intellectual\ue2 that are the mechanism of his constructing self-justification. Such investigation of the internality and the externality of text confirmed the complex relationships of the sustained \ue2opposition,\ue2 \ue2coexistence,\ue2 and \ue2conflict\ue2 between Luo and his works of historical themes
Abnormal temperature-dependent stability of on-plastic a-Si:H thin film transistors fabricated at 150 ?C
No full textStegana (Steganina) zhaofengi Cheng, Gao & Chen, 2009, sp. nov.
No full text<i>Stegana</i> (<i>Steganina</i>) <i>zhaofengi</i> sp. nov. <p>(Figs 27–30)</p> <p> <b>Specimens examined.</b> Holotype: ♂ (SCAU, No. 120657), CHINA: Mengla, Xishuangbanna, Yunnan, 600 m, <i>ex</i> tussock, 23.iv.2007, JJ Gao. Paratypes: CHINA: 6♂ 6♀ (2♂ 2♀ in KIZ; 2♂ 2♀ in SCAU, Nos 120658-65), same data as holotype, 21–24.iv.2007, HW Chen, JJ Gao; 2♂ 1♀ (SEHU), Menglun, Xishuangbanna, Yunnan, 800 m, <i>ex</i> tussock, 17.iv.2007, JJ Gao, F Zhao.</p> <p> <b>Diagnosis.</b> Aedeagus composed of 2 pairs of rod-like processes, and with 4 strongly sclerotized projections on each side and several arista-like spinule (Fig. 30).</p> <p> <b>Description.</b> Male and female: Pedicel brown; first flagellomere black. Palpus yellow basal 1/3, black distal 2/3. Katepisternum brown on upper 2/3, yellow on lower 1/3. Legs brown, white on basal part of fore femur and all knee joints, yellow on 2nd to 5th tarsomeres of all legs. Sternites brown. Male terminalia: Epandrium with approximately 14 setae near posterior to ventral margin on each body-side (Fig. 27). Cercus with sporadic pubescence dorsally (Fig. 27). Plate between hypandrium and aedeagus lacking pubescence (Fig. 30).</p> <p> <b>Measurements.</b> BL = 2.38 mm in holotype (range in 4♂ 5♀ paratypes: 2.25–2.31 mm in ♂, 2.06–2.78 mm in ♀); ThL = 1.19 mm (1.09–1.13 mm in ♂, 1.00– 1.34 mm in ♀); WL = 1.92 mm (1.76–1.90 mm in ♂, 1.78–2.33 mm in ♀); WW = 1.08 mm (1.02–1.04 mm in ♂, 0.96–1.28 mm in ♀). Indices: arb = 8/7 (7–9/6–8), avd = 0.73 (0.76–0.87), adf = 1.36 (1.18–1.64), flw = 2.00 (1.82–2.00), FW/HW = 0.37 (0.35–0.40), ch/o = 0.08 (0.08–0.09), prorb = 1.05 (1.08–1.21), rcorb = 0.71 (0.75–0.89), vb = 0.30 (0.22–0.32), dcl = 0.41 (0.39– 0.53), presctl = 0.59 (0.47–0.72), sctl = 1.56 (1.52–1.61), sterno = 0.84 (0.76–0.94), orbito = 2.29 (2.00–2.60), dcp = 0.21 (0.18–0.21), sctlp = 1.11 (1.05–1.20), C = 1.80 (1.69–1.90), 4c = 1.30 (1.20–1.38), 4v = 1.74 (1.58–1.86), 5x = 1.18 (1.08–1.33), ac = 10.00 (7.00–10.00), M = 0.57 (0.50–0.62), C3F = 0.65 (0.62–0.73).</p> <p> <b>Distribution.</b> China (Yunnan).</p> <p> <b>Etymology.</b> Patronym of the collector Dr. F Zhao (SCAU).</p>Published as part of <i>Cheng, Yu, Gao, Jian-Jun & Chen, Hong-Wei, 2009, Stegana ornatipes species group from the Oriental Region (Diptera: Drosophilidae), pp. 37-48 in Zootaxa 2216 (1)</i> on pages 47-48, DOI: 10.11646/zootaxa.2216.1.3, <a href="http://zenodo.org/record/5321864">http://zenodo.org/record/5321864</a>
Stegana (Steganina) angustigena Cheng, Gao & Chen, 2009, sp. nov.
No full textStegana (Steganina) angustigena sp. nov. (Figs 7–10) Specimens examined. Holotype: ♂ (SCAU, No. 120621), CHINA: Jianfengling, Ledong, Hainan, 18°41' N, 108°52' E, altitude 700 m, 19.v.2004, on tree trunks, HW Chen. Paratypes: CHINA: 6♂ 10♀ (3♂ 5♀ in KIZ; 3♂ 5♀ in SCAU, Nos 120692-99), same data as holotype except for 20.iv.2008, XP Chen, JJ Gao; 2♂ 3♀ (SCAU, Nos 120622-26), Wuzhishan, Hainan, 18°48ʹ N, 109°19ʹ E, altitude 440 m, 20.iv.2007, on tree trunks, HZ Cao, T Li; 1♂ (SCAU, No. 120627), Nonggang, Chongzuo, Guangxi, 22°33ʹ N, 106°92ʹ E, altitude 230 m, 23.viii.2004, on tree trunks, HW Chen; 4♀ (KIZ), Menglun, Xishuangbanna, Yunnan, 21°41' N, 101°25' E, altitude 880 m, 16–19.iv.2007, ex tussock, JJ Gao; 3♂ 14♀ (1♂ 1♀ on tree trunks) (1♂ 6♀ in KIZ; 1♂ 6♀ in SCAU, Nos 120628-34, 1♂ 2♀ in SEHU), Mengla, Xishuangbanna, Yunnan, 21°28' N, 101°38' E, altitude 600 m, 21–24.iv.2007, ex tussock, HW Chen, JJ Gao, F Zhao. Diagnosis. Surstylus strongly curved submedially (Fig. 8); aedeagus composed of 1 lobe-like and 1 pair of slender, rod-like processes; the lobe-like process bifurcated distally, with pubescence (Fig. 10). Description. Male and female: Pedicel brown; first flagellomere black. Palpus black. Mesonotum brown to dark brown, without stripe. Scutellum dark brown to black. Katepisternum brown on upper part, yellow on lower part. Legs white-yellow, brown on apical part of fore femur, dark brown to black medially on mid and hind femora, with 2 dark brown rings on all tarsomeres. Fore femur with 4–5 setae on distal part of ventral surface. All abdominal tergites and sternites dark brown to black. Male terminalia: Epandrium with approximately 30 setae near posterior to ventral margin on each body-side (Fig. 7). Cercus lacking pubescence (Fig. 7). Plate between hypandrium and aedeagus slightly pubescent (Fig. 10). Measurements. BL = 2.25 mm in holotype (range in 4♂ 5♀ paratypes: 2.13–2.47 mm in ♂, 2.28–2.91 mm in ♀); ThL = 1.13 mm (1.00– 1.22 mm in ♂, 1.09–1.38 mm in ♀); WL = 1.84 mm (1.74–1.90 mm in ♂, 1.88–2.28 mm in ♀); WW = 1.00 mm (0.98–1.24 mm in ♂, 1.04–1.26 mm in ♀). Indices: arb = 8/6 (7–9/6–7), avd = 0.86 (0.67–0.82), adf = 1.27 (1.36–1.80), flw = 1.91 (1.80–2.10), FW/HW = 0.34 (0.33–0.40), ch/o = 0.06 (0.06–0.09), prorb = 1.28 (1.05–1.25), rcorb = 0.78 (0.71–0.94), vb = 0.21 (0.20–0.33), dcl = 0.40 (0.38– 0.47), presctl = 0.54 (0.47–0.61), sctl = 1.29 (1.46–1.72), sterno = 0.81 (0.80–0.93), orbito = 2.50 (2.00–2.50), dcp = 0.20 (0.16–0.24), sctlp = 1.06 (0.94–1.18), C = 1.89 (1.78–2.12), 4c = 1.33 (1.17–1.37), 4v = 1.81 (1.68–1.81), 5x = 1.30 (1.08–1.30), ac = 9.33 (7.50–10.00), M = 0.62 (0.52–0.62), C3F = 0.69 (0.56–0.73). Distribution. China (Guangxi, Hainan, Yunnan). Etymology. A combination of the Latin words: angustus and gena, referring to the narrow gena.Published as part of Cheng, Yu, Gao, Jian-Jun & Chen, Hong-Wei, 2009, Stegana ornatipes species group from the Oriental Region (Diptera: Drosophilidae), pp. 37-48 in Zootaxa 2216 (1) on pages 41-42, DOI: 10.11646/zootaxa.2216.1.3, http://zenodo.org/record/532186
Fading performance evaluation of a semi-blind space-time equaliser for frequency selective MIMO systems
No full textA semi-blind adaptive space–time equaliser (STE) has recently been proposed based on a concurrent gradient-Newton(GN) constant modulus algorithm (CMA) and soft decision-directed (SDD) scheme for dispersive multiple-input multiple-output (MIMO) systems that employ high-throughput quadrature amplitude modulation signalling. A minimum number of training symbols, approximately equal to the dimension of the STE, is used to provide a rough initial estimate of the STE’s weight vector. The concurrent GN based CMA and SDD blind adaptive scheme is then adopted to adapt the STE. This semi-blind STE has a complexity similar to that of the training-based recursive least squares (RLS) algorithm. For stationary MIMO channels, it has been demonstrated that this semi-blind adaptive STE is capable of converging fast to the optimal minimum mean square error STE solution. In this contribution, we investigate the performance of this semi-blind adaptive STE operating in Rayleigh fading MIMO systems. Our results obtained show that the tracking performance of this semi-blind adaptive algorithm is close to that of the training-based RLS algorithm. Thus, this semi-blind adaptive STE offers an effective and practical means to successfully operate under the highly dispersive and fading MIMO environment
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