74,634 research outputs found
Analyse des signaux multicomposante à modulation de fréquence linéaire par la transformation de Teager-Huang-Hough
No full textA novel detection approach of linear FM (LFM) signals, with single or multiple components, in the time-frequency plane of Teager-Huang (TH) transform is presented. The detection scheme that combines TH transform and Hough transform is referred to as Teager-Huang-Hough (THH) transform. The input signal is mapped into the time-frequency plane by using TH transform followed by the application of Hough transform to recognize time-frequency components. LFM components are detected and their parameters are estimated from peaks and their locations in the Hough space. Advantages of THH transform over Hough transform of Wigner-Ville distribution (WVD) are: 1) cross-terms free detection and estimation, and 2) good time and frequency resolutions. No assumptions are made about the number of components of the LFM signals and their models. THH transform is illustrated on multicomponent LFM signals in free and noisy environments and the results compared with WVD-Hough and pseudo-WVD-Hough transforms
Ahlbergia clarolinea Huang & Chen
No full textAhlbergia clarolinea Huang & Chen (Figs. 18–21, 63– 66, 71–72, 90–91, 104, 108) Ahlbergia clarolinea Huang & Chen, 2006: 317, figs. 4–6 for male and female genitalia, cpl. 12, figs. 1–3 for habitus. Material. CHINA: Yunnan province: 1 ♀ (CHH, holotype, dissected), Lijiang City, Yulongxueshan, 2800m, 29. IV. 2005, H. Huang leg..; 3 ♂♂, 1 ♀ (CHH, dissected), Lijiang, Yulongxueshan, 2600m, 26.IV. 2015, H. Huang leg.; 2 ♂♂ (CCAM, paratypes, dissected), Lijiang, Ludian, 2600–2900m, IV. 2006, A.-M. Chen leg.; 8 ♂♂, 4 ♀♀ (CHH; 2 ♂♂ & 2 ♀♀ dissected), Lijiang, Ludian, 2500–2800m, 13.V. 2014; 7 ♂♂, 4 ♀♀ (CHH; 2 ♂♂ & 2 ♀♀ dissected), Lijiang, Ludian, 2600–2700m, 28.IV. 2015 & 20.V. 2015, H. Huang & X.-D. Yang leg.; 1 ♂ (CZZH), Dali Bai Autonomous Region, Yunlong County, Tianchi, 20.V. 2014, Z.-H. Zheng leg.; 1 ♂, 1 ♀ (CHSJ), Kunming, IV. 2014, S.-J. Hu leg.. Sichuan province: 1 ♀ (CHH, dissected), Liangshan Yi Autonomous Region, Muli County, Liziping, 2700m, 5.V. 2014, X.-D. Yang leg.. Remarks. The female holotype was collected from Yulongxueshan whilst the male paratypes were collected from Ludian, thus the association of male and female requires a confirmation from more material. In a recent expedition made by the first author, specimens of both sexes were collected from both localities. An examination of male and female genitalia proved the original association of male and female to be correct. Distribution. Yunnan (Lijiang, Kunming, Yunlong), Sichuan (Muli).Published as part of Huang, Hao & Zhu, Jian-Qing, 2016, Ahlbergia maoweiweii sp. n. from Shaanxi, China with revisional notes on similar species (Lepidoptera: Lycaenidae), pp. 409-433 in Zootaxa 4114 (4) on page 431, DOI: 10.11646/zootaxa.4114.4.3, http://zenodo.org/record/27160
Diptilomiopus aralioidus Huang 2006
No full textDiptilomiopus aralioidus Huang, 2006 (Pl. 7 A, B) Diptilomiopus aralioidus Huang, 2006: 66 Specimens examined: 4 Ψ, Taipei: Yangmingshan (770m; N 25 ° 11´E 121 ° 30´), 21 -Jan.- 1998, Huang & Wang; ex Trochodendron aralioides S. et Z. (Trochodendraceae). Relation to host: A vagrant on the lower leaf surface. No apparent damage was observed.Published as part of Huang, Kun-Wei & Wang, Chin-Fah, 2009, Eriophyoid mites (Acari: Eriophyoidea) of Taiwan: thirty-seven species from Yangmingshan, including one new genus and twenty-two new species, pp. 1-50 in Zootaxa 1986 on page 40, DOI: 10.5281/zenodo.18542
Study on the elastic-plastic behavior of a porous hierarchical bioscaffold used for bone regeneration
No full textA perfectly plastic von Mises model is proposed to study the elastic-plastic behavior of a porous hierarchical scaffold used for bone regeneration. The proposed constitutive model is implemented in a finite element (FE) routine to obtain the stress-strain relationship of a uniaxially loaded cube of the scaffold, whose constituent is considered to be composed of cortical bone. The results agree well with experimental data for uniaxial loading case of a cancellous bone. We find that the unhomogenized stress distribution results in different mechanical properties from but still comparable to our previous theory. The scaffold is a promising candidate for bone regeneration
Abacarus aralioidus Huang 2006
No full text<i>Abacarus aralioidus</i> Huang, 2006 <p> <i>Abacarus aralioidus</i> Huang, 2006: 66</p> <p> <b>Specimens examined</b>: 4Ψ, Taipei: Yangmingshan (600m; N25°09´E121°34´), 24-Aug.-1999, Huang & Wang; ex <i>Trochodendron aralioides</i> S. et Z. (Trochodendraceae).</p> <p> <b>Relation to host</b>: A vagrant on the lower leaf surface. No apparent damage was observed. <b>Remarks</b>: This species was found association with <i>Diptilomiopus aralioidus</i> Huang, 2006 on the same host plant.</p>Published as part of <i>Huang, Kun-Wei & Wang, Chin-Fah, 2009, Eriophyoid mites (Acari: Eriophyoidea) of Taiwan: thirty-seven species from Yangmingshan, including one new genus and twenty-two new species, pp. 1-50 in Zootaxa 1986</i> on page 33, DOI: <a href="http://zenodo.org/record/185424">10.5281/zenodo.185424</a>
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