390,998 research outputs found
Dialectal variations in tonal register and declination pattern of Taiwan MandarinIn P. A. Barbosa, S. Madureira, & C. Reis (Eds.)
No full textAhlbergia 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
Analyse des signaux multicomposante à modulation de fréquence linéaire par la transformation de Teager-Huang-Hough
Full text linkA 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
Fast decision of block size, prediction mode, and intra block for H.264 intra prediction
No full textImproved 3D printed silica ceramics impregnated with an alumina sol by controlling atmosphere, vacuum pressure and holding time
No full textWhen the content of cristobalite is in the appropriate range, the mechanical properties of silica ceramics can be improved. The formation and growth of cristobalite in silica ceramics can be promoted by introducing alumina into silica ceramics by vacuum impregnation. In this study, the influence of different conditions on the impregnation of silica ceramics by alumina sol was studied by controlling the impregnation atmosphere, vacuum impregnation pressure and vacuum impregnation time. The results proved that the impregnation atmosphere has a great influence on the impregnation effect. The flexural strength of vacuum impregnated sample increased by 278.8 % compared with that of air impregnated sample. The smaller the pressure, the greater the difference between the pressure and the external pressure, and the better the impregnation effect of the sample. The flexural strength of the sample with vacuum impregnation pressure of 0.015 MPa was 138.1 % higher than that of the sample with vacuum impregnation pressure of 0.065 MPa. The increase of vacuum impregnation holding time can improve the performance of the sample, but the improvement effect has an upper limit. When the vacuum impregnation time was 3.0 h, the strength of the sample improved by 98.3 % compared with that of the sample with vacuum impregnation time of 1.5 h. Based on the mechanical properties and economic benefits, the best mechanical properties of silica ceramics were obtained by impregnating 3.0 h with 25 wt% alumina sol at a temperature of 60 °C and a vacuum pressure of 0.015 MPa. In these conditions, the flexural strength of the samples was 19.9 ± 0.4 MPa, the bulk density was 1.68 ± 0.02 g/cm3, and the porosity was 25.9 ± 0.9 %
The effect of onset and position in the realization of Tone 1 in two dialects of Taiwan Mandarin
No full textForce harmonic distortion in the supine human body during vertical and longitudinal horizontal sinusoidal whole-body vibration
No full textA Fourier-related FE2 Multiscale Model for Instability Phenomena of Long Fiber Reinforced Materials
No full textProbing the effect of author self-citations on h index: A case study of environmental engineering
No full textThis study evaluates the impact of author self-citations on h index by exploring 583 authors whose works appear in key periodicals in environmental engineering. The findings show that authors’ h values have high correlation with authors’ article number, total cited count, and their rankings. There is also a high correlation with h index values and rankings of h values. The study indicates that selfcitations have little impact on the values of h index and the h index rankings, whether or not articles with authors’ self-citation are included. Further investigations reveal that, for authors with high values in h index, the two h index values are both highly correlated and with significant difference either with self-citations or without. A similar pattern is seen in authors with low h values. The results suggest that there is no need to deliberately exclude self-citations in analysing or evaluating research performance in environmental engineering.國外SSCIY電子版紙本GB
The effect of acquisition order and word relatedness on code-switching in balanced bilingual speakers
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