1,722,802 research outputs found
Three eriophyoid mite species (Acari: Eriophyoidea: Eriophyidae) from Iran
No full textSadeghi, Xiao-Feng Xue Hussein, Honarmand, Arash (2016): Three eriophyoid mite species (Acari: Eriophyoidea: Eriophyidae) from Iran. Zootaxa 4132 (3): 403-412, DOI: 10.11646/zootaxa.4132.3.
FIGURE 3 in Three eriophyoid mite species (Acari: Eriophyoidea: Eriophyidae) from Iran
No full textFIGURE 3. Phyllocoptes sp. cf. balasi Farkas, 1962: A. Dorsal view of female; B. Ventral view of female; C. Prodorsal shield; D. Coxae of female; E. Dorsal view of posterior part; F. Ventral view of posterior part; G. Dorsal microtubercles; H. Ventral microtubercles.Published as part of Sadeghi, Xiao-Feng Xue Hussein & Honarmand, Arash, 2016, Three eriophyoid mite species (Acari: Eriophyoidea: Eriophyidae) from Iran, pp. 403-412 in Zootaxa 4132 (3) on page 407, DOI: 10.11646/zootaxa.4132.3.8, http://zenodo.org/record/26122
Integrated balance control on uneven terrain
No full textTo reach competent Human-Robot Interaction, robots should be able to behave stably on uneven terrain in domestic environments. This paper addresses a technique, which integrates four balance control strategies and is used on Nao robot to realize walking on uneven terrain that is not modelled in advance. The most important two strategies are "Closed Loop Gait Pattern Generator" and "Posture Control". The former one uses the filtered robot state based on Kalman filter. It helps to improve joint tracking, which is important for model based approaches. The latter one helps to make the trunk vertical to the ground. This strategy is very effective when walking on a slope. The other two strategies are "CoG (Center of Gravity) Height Control" and "Ankle Joint Control", which are used to resist relatively large tilt and prevent potential falling over motion. abstract environment. © 2013 Springer-Verlag
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Phyllocoptes taishanensis Xue & Hong 2005
No full textPhyllocoptes taishanensis Xue & Hong, 2005 Phyllocoptes taishanensis Xue & Hong, 2005d: 215, 218. Phyllocoptes taishanensis; Xue & Hong, 2006: 15. Phyllocoptes taishanensis; Song et al., 2008: 31. Type material. 15 females and 1 male (slide number NJAUAcariEri1), from Cedrus deodara (Roxb.) Loud (Pinaceae), Tai Mountain, Tai' an City, Shandong Province, P. R. China, 36°15'17' N, 117°06'15' E, 17 August 2003, coll. Xiao-Feng Xue & Xiao-Yue Hong. New material. 10 females (slide number NJAUAcariEri252), from Cedrus deodara (Roxb.) Loud (Pinaceae), Taibai Mountain, Mei County, Shaanxi Province, P. R. China, 34°01'51' N, 107°48'36' E, elevation 2810m, 1 September 2004, coll. Xiao-Feng Xue & Zi-Wei Song; 8 females (slide number NJAUAcariEri289), from Cedrus deodara (Roxb.) Loud (Pinaceae), Ningshan County, Shaanxi Province, P. R. China, 33°18'43' N, 108°18'33' E, elevation 766m, 6 September 2004, coll. Xiao-Feng Xue and Zi-Wei Song; 12 females (slide number NJAUAcariEri192), from Cedrus deodara (Roxb.) Loud (Pinaceae), Louguantai, Zhouzhi County, Shaanxi Province, P. R. China, 34°03'54' N, 108°19'22' E, elevation 500m, 30 August 2004, coll. Xiao-Feng Xue and Zi-Wei Song; 5 females (slide number NJAUAcariEri406), from Cedrus deodara (Roxb.) Loud (Pinaceae), Cuihua Mountain, Xi' an City, Shaanxi Province, P. R. China, 34°59'40' N, 109°00'04' E, elevation 901m, 15 August 2005, coll. Xiao-Feng Xue & Zi-Wei Song; 8 females (slide number NJAUAcariEri431), from Cedrus deodara (Roxb.) Loud (Pinaceae), Wen County, Gansu Province, P. R. China, 32°56'43' N, 104°40'27' E, elevation 950m, 8 September 2005, coll. Xiao-Feng Xue & Zi-Wei Song; 16 females (slide number NJAUAcariEri451), from Cedrus deodara (Roxb.) Loud (Pinaceae), Wudu, Longnan City, Gansu Province, P. R. China, 33°23'43' N, 104°55'48' E, elevation 1214m, 10 September 2005, coll. Xiao-Feng Xue & Zi-Wei Song; 10 females and 2 males (slide number NJAUAcariEri497), from Cedrus deodara (Roxb.) Loud (Pinaceae), Lanzhou City, Gansu Province, P. R. China, 36°05'19' N, 103°41'49' E, elevation 1543m, 13 September 2005, coll. Xiao-Feng Xue & Zi-Wei Song. Host. Cedrus deodara (Roxb.) Loud (Pinaceae). Relation to host. Vagrant. Distribution. China (Gansu, Henan, Shaanxi, Shandong).Published as part of Xue, Xiao-Feng, Han, Xiao, Song, Zi-Wei & Hong, Xiao-Yue, 2012, Eriophyoid mite fauna of Shaanxi Province, China, with descriptions of five new species (Acari: Eriophyoidea) 3292, pp. 1-71 in Zootaxa 3292 (1) on page 34, DOI: 10.11646/zootaxa.3292.1.1, http://zenodo.org/record/525012
Real time biped walking gait pattern generator for a real Robot
No full textThe design of a real time and dynamic balanced biped walking gait pattern generator is not trivial due to high control space and inherently unstable motion. Moreover, in the Robocup domain, robots that are able to achieve the goal footstep in a short duration have a great advantage when playing soccer. In this paper, we present a new technique to realize a real time biped walking gait pattern generator on a real robot named Nao. A Zero Moment Point (ZMP) trajectory represented by a cubic polynomial is introduced to connect the goal state (the position and the velocity of the CoG) to the previous one in only one step. To apply the generator on the real robot Nao, we calculate the compensation for two HipRoll joints in a theoretical way by modeling them as elastic joints. The nao of version 3.3 is used in the experiments. The walk is intrinsically omnidirectional. When walking with step duration 180ms, the robot can respond to the high level command in 180ms. The maximum forward speed is around 0.33m/s. The maximum backward speed is around 0.2m/s. The maximum sideways speed is around 0.11m/s. The maximum rotational speed is around 90°/s. © 2012 Springer-Verlag Berlin Heidelberg
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