127,626 research outputs found
Jurataenionema Liu and Ren
No full textGenus Jurataenionema Liu and Ren, gen. nov. Type species. Jurataenionema inornatus Liu and Ren, sp. nov. Etymology. The generic name is taken from the combination of Jura and T aenionema (a genus of Taeniopterygidae) Species included. The type species J. inornatus Liu and Ren, sp. nov. and J. stigmaeus Liu and Ren, sp. nov. Diagnosis. Wings are macropterous, translucent. No additional veinlets on the costal area, c–r present or very faint, sometimes grey pterostigma presents in the terminal space of forewings; Rs with three branches, M and CuA with two long branches, and fork at level of midlength of Rs stem; 5–8 crossveins in the median and cubital areas. Ninth sternite produced, with a median tongue–like erect and then bent forward extension tapering to around or cuspidal tip, tenth tergite transversely wide, sclerotized. Cerci short, eight to ten segments. Remarks. The new genus Jurataenionema differs from the extant genera by the longer cerci and long branches of CuA; differs from the extinct Gurvanopteryx by Rs with three branches and the longer first segment of hind tarsus; differs from the extinct Positopteryx by c–r present, Rs with three branches.Published as part of Liu, Yushuang, Sinitshenkova, Dong Ren Nina D. & Shih, Chung Kun, 2007, The oldest known record of Taeniopterygidae in the Middle Jurassic of Daohugou, Inner Mongolia, China (Insecta: Plecoptera), pp. 1-8 in Zootaxa 1521 on page 2, DOI: 10.5281/zenodo.17745
Dataset for Energy-Efficient Computation Offloading for Secure UAV-Edge-Computing Systems
No full textThis is the dataset of the paper 'Energy-Efficient Computation Offloading for Secure UAV-Edge-Computing Systems' by T. Bai, J. Wang, Y. Ren and L. Hanzo, published in IEEE Transactions on Vehicular Technology.</span
Letter, [Author unclear] to Paulina T. Merritt
No full textHandwritten letter to Paulina Merritt from an unknown author, October 1, 1876.
Asynchronous H∞ filtering for semi-Markov jump T-S fuzzy systems within partial state delay and deception attack: Applied to aircraft-pilot state estimation
No full textThis article addresses an asynchronous filter design problem within partial state delay and deception attack for a class of discrete-time semi-Markov jump Takagi-Sugeno (T-S) systems which can describe estimation process for human pilot cognitive property. First, the emission probability, which relates to system mode and filtering mode, is introduced to consider the system process with asynchronously observation scheme. Second, state delay-independent condition and state delay-dependent condition de-signed within state delay boundary are proposed under the H & INFIN; performance index & gamma;. Third, the system output signal under deception attack is adopted as the information interference during the transmitted filter process. Through the Lyapunov-Krasovskii approach, stability of the proposed filtering scheme that is mode dependent can be guaranteed. Moreover, the filtering mode is also dynamically changed ac-cording to the prescribed asynchronous formula. A numerical example considered for aircraft-pilot state estimation is used to demonstrate the effectiveness and applicability of our proposed filtering method by obtaining the minimum & gamma;. Experiments show that filter could play a better role in advancing signal estimation in aircraft-pilot state estimation scenario with properties like state delay and deception attack. Also, it contributes to modelling the fully human pilot cognitive decision-making in a human-computer interaction scenario
Trigonocnera granulata Ba & Ren, 2009, sp. nov.
No full textTrigonocnera granulata sp. nov. (Figs. 2 –14, 28) Type material. Holotype: ɗ, Mt. Maan, Lingwu County, Ningxia Province, China, 2 May 1987, collected by Ren Guodong. Paratypes: China: 7 ɗɗ, 10 ΨΨ, same data as holotype; 2 ɗɗ, 1 Ψ, Mt. Maan, Lingwu county, Ningxia Province, 25 August 2007; 2 ɗɗ, 3 ΨΨ, Baijitan, Lingwu county, Ningxia Province, 4 May 1987; 4 ɗɗ, 5 ΨΨ, Lingwu county, Ningxia Province, 5 May 1987; 1 ɗ, 1 Ψ, Yinchuan City, Ningxia Province, 28 May 1987; 2 ɗɗ, 2 ΨΨ, Shuxin, Qingtongxia City, Ningxia Province, 18 May 1980; 1 Ψ, Mt. Mahuang, Yanchi county, Ningxia Province, 8 July 1988; collected by Ren Guodong; 15 ɗɗ, 22 ΨΨ, Zhongning County, Ningxia Province, 15 August 2008, collected by Zhang Chengli; 6 ɗɗ, 7 ΨΨ, Wulate Qianqi, Neimenggu Province, collected by Cai Jiakun; 1 ɗ, 2 ΨΨ, Bayin, Alashan Zuoqi, Neimenggu Province, 1 May 1992; 2 ɗɗ, 1 Ψ, Alashan Zuoqi, Neimenggu Province, 2 May 1992; collected by Yu Youzhi. Diagnosis. The new species is similar to T. pseudopimelia pseudopimelia and T. pseudopimelia reitteri. In addition to the the differences given in the key, T. granulata differs from the two subspecies of T. pseudopimelia in the form of the aedeagus.. Etymology. The specific name is derived from the word “granula”, and refers to the densely granulate body. Description. Body broadly oval, color shiny black. Head broad; punctures of frons sparser on middle than on sides, every one with a seta; anterior and lateral margins of clypeus straight; genae slightly arcuate, narrower than breadth between eyes. Antennae moderately short, reaching base of pronotum; 3 rd segment 2.8 times as long as broad, terminal segment short, oval; relative length ratio of 2 nd to 11 th segments as follows: 18.0: 55.0: 32.0: 28.0: 30.0: 29.0: 26.0: 25.0: 15.0: 8.0. Mentum approximately square, anterior margin shallowly incurved. Pronotum 1.3 times as broad as long; anterior margin straight and bordered; lateral margin arcuate, but straight near base, broadest at apical 1 / 3, border invisible in dorsal view; base broadly bordered; anterior angles acute, posterior angles obtuse; disc feebly convex, middle line distinct, umbilicate punctures large, larger in diameter than interspaces, with hairs, and somewhat sparse medially. Elytra broadly oval, 1.4 times as long as broad, and 3.0 times as long as pronotum; base W – shaped, humeri round; lateral margin parallel, humeral rows obvious only on apical 2 / 3, granules of rows fine and dense in apical 1 / 2; granules of marginal rows thick on basal 1 / 2, and small and dense on apical 1 / 2, humeri densely granuliferous, similar with humeral rows; pseudopleuron sparsely granuliferous. Propleura sparsely granuliferous and with dense hairs, prosternal process distinctly curved beyond procoxae, round and bordered apically. Mesosternum gibbous anteriorly, with even and round granules and hairs. Abdomen sparsely and finely granuliferous and with dense hairs. Aedeagus long and broad; paramera 1.3 times as long as basal piece, middle flat in dorsal view, lateral margin straight, apex triangulate; lateral margin of basal piece straight, broadest at apical 1 / 3, apex round. Ovipositor short and broad, valvula digitiform. Protibiae gradually broadened to apex. Meso- and metatibiae slightly broad apically. Ratios of relative length of metatarsi 1 st to 4 th segments as follows: 30.0: 13.0: 12.0: 30.0. Measurements. Body length: 16.0 – 22.0 mm; width: 8.0 – 11.0 mm.Published as part of Ba, Yi-Bin & Ren, Guo-Dong, 2009, Taxonomy of Trigonocnera Reitter, with the description of a new species (Coleoptera, Tenebrionidae), pp. 51-56 in Zootaxa 2230 on pages 52-54, DOI: 10.5281/zenodo.19026
Droplet formation in microfluidic T-junction generators operating in the transitional regime. III. Dynamic surfactant effects
No full text© APS, Glawdel, T., Elbuken, C., & Ren, C. L. (2012). Droplet formation in microfluidic T-junction generators operating in the transitional regime. II. Modeling. Physical Review E, 85(1). https://doi.org/10.1103/PhysRevE.85.016323This study extends our previous work on droplet generation in microfluidic T-junction generators to include dynamic interfacial tension effects created by the presence of surfactants. In Paper I [T. Glawdel, C. Elbuken, and C. L. Ren, Phys. Rev. E 85, 016322 (2012)], we presented experimental findings regarding the formation process in the squeezing-to-transition regime, and in Paper II [T. Glawdel, C. Elbuken, and C. L. Ren, Phys. Rev. E 85, 016323 (2012)] we developed a theoretical model that describes the performance of T-junction generators without surfactants. Here we study dynamic interfacial tension effects for two surfactants, one with a small molecular weight that adsorbs quickly, and the other with a large molecular weight that adsorbs slowly. Using the force balance developed in Paper II we extract the dynamic interfacial tension from high speed videos obtained during experiments. We then develop a theoretical model to predict the dynamic interfacial tension in microfluidic T-junction generators as a function of the surfactant properties, flow conditions, and generator design. This model is then incorporated into the overall model for generator performance to effectively predict the size of droplets produced when surfactants are present
Encarsia plana Viggiani & Ren
No full textEncarsia plana Viggiani & Ren (Figs 20–33) Encarsia plana Viggiani & Ren, 1987: 28. Holotype female, China: Guangdong, Guangzhou, 8 October 1986 (coll. Hui Ren), ex? Bambusaspis sp. on bamboo (IEUN, examined). Encarsia plana Viggiani & Ren: Viggiani & Ren, 1993: 226; Huang, 1994: 213; Huang & Polaszek, 1998: 1939. Material examined. 1 ♂, China: Fujian, Fuzhou, Jinshan, 30 September 2013 (coll. Zhu-Hong Wang), ex. unidentified armoured scale on bamboo (FAFU); 2 ♀, China: Hainan, Sanya, 10 January 2014 (coll. Zhu-Hong Wang), ex. unidentified armoured scale on bamboo (FAFU); 4 ♀, China: Fujian, Fuzhou, Forest Park, 22 October 1989 (coll. Jian-Qing Huang), by yellow pan trap (BMNH, FAFU). Description. Male (Figs 20–26). Body length: 0.54 mm. Colour. Head yellow except occiput, and facial prominence brown, clypeus and malar space dark brown, and a dark brown stripe on occipital foramen; eyes dark red, ocelli red-brown (Fig. 21). Mandible brown. Antenna brown-yellow with scape mostly pale yellow; longitudinal sensilla on each flagellar segment dark brown (Fig. 24). Mesosoma yellow except pronotum, axillae and propodeum brown to dark brown, mid-lobe of mesoscutum anteromedially with a large dark brown patch; prosternum and mesopleuron dark brown (Fig. 20). Wings hyaline (Fig. 23). Legs mostly white, but hind coxae basally brown. Petiole brown, tergites and sternites of metasoma dark brown except apex of T 7 brown-yellow (Fig. 20); genitalia with basal three-fourths dark brown and apical onefourth white (Fig. 26). Head. Head slightly wider than mesosoma; frontovertex large, with two brown carinae starting from middle of vertex margin and, forming a V-shape, extending laterally to ocelli (Fig. 21). Maxillary palps short, 2 -segmented, and labial palps 1 -segmented. Mandibles with three teeth. Antennal formula 1: 1:0: 6; pedicel shorter than each flagellar segment; lengths of F 1 –F 6, 44: 50: 47: 49: 50: 52; each flagellar segment with 5–7 longitudinal sensilla (Fig. 24). Mesosoma. Mid-lobe of mesoscutum mostly with longitudinal hexagonal cells or reticulation, with 2 + 1 + 2 setae; side-lobe of mesoscutum with 1 seta, axilla with 1 seta; scutellum with placoid sensilla distantly placed, closer to fore pair than to hind pair of setae, distance between fore pair of scutellar setae slightly greater than that between hind pair (Fig. 25). Fore wing 2.69× as long as maximum width of wing disc; marginal fringe rather long, 0.42× as long as maximum width of disc; submarginal vein with 2 setae, anterior margin of marginal vein with 6 setae, basal cell with 1 seta; wing disc densely setose (Fig. 23); stigmal vein short, and postmarginal vein absent (Fig. 22). Tarsal formula 5: 5: 5. Metasoma. Metasoma 1.67× as long as mesosoma; petiole with distinct sculpture; tergites 1–7 with setae as follows: T 1, 0+0; T 2 –T 4, 2 + 2 each; T 5, 6; T 6, 4 between cercal plates; T 7, 4 in one row. Genitalia without distinct digital lobes (Fig. 26). Female (Figs 27–33). Detailed characters for the female are given in Huang & Polaszek (1998: 1939). Body rather flat and narrow. Head slightly wider than mesosoma; frontovertex large, with two brown carinae starting from middle of vertex margin and, forming a V-shape, extending laterally to ocelli (Fig. 28). Fore wing 2.72–2.82× as long as maximum width of wing disc, with narrow stigma, ciliation on disc unusual, consisting of scattered, very short setae with a rather large base (Fig. 30). Species group placement. Not established. Host. An unidentified diaspidid (Hemiptera: Diaspididae) scale on bamboo. Viggiani & Ren (1987) recorded this species from a diaspidid,? Bambusaspis sp. Distribution. China (Fujian, Hainan, Guangdong).Published as part of Wang, Zhu-Hong, Huang, Jian & Polaszek, Andrew, 2014, Two new species of Encarsia Förster (Hymenoptera, Aphelinidae) and first description of the male E. plana Viggiani & Ren from China, pp. 574-588 in Zootaxa 3889 (4) on pages 582-587, DOI: 10.11646/zootaxa.3889.4.5, http://zenodo.org/record/25149
Handwritten biographical information on Paulina T. McClung Merritt
No full textA handwritten biography of Paulina T. McClung Merritt by an unknown author, 1892.
Heterogeneous and tissue-specific regulation of effector T cell responses by IFN-gamma during Plasmodium berghei ANKA infection.
No full textIFN-γ and T cells are both required for the development of experimental cerebral malaria during Plasmodium berghei ANKA infection. Surprisingly, however, the role of IFN-γ in shaping the effector CD4(+) and CD8(+) T cell response during this infection has not been examined in detail. To address this, we have compared the effector T cell responses in wild-type and IFN-γ(-/-) mice during P. berghei ANKA infection. The expansion of splenic CD4(+) and CD8(+) T cells during P. berghei ANKA infection was unaffected by the absence of IFN-γ, but the contraction phase of the T cell response was significantly attenuated. Splenic T cell activation and effector function were essentially normal in IFN-γ(-/-) mice; however, the migration to, and accumulation of, effector CD4(+) and CD8(+) T cells in the lung, liver, and brain was altered in IFN-γ(-/-) mice. Interestingly, activation and accumulation of T cells in various nonlymphoid organs was differently affected by lack of IFN-γ, suggesting that IFN-γ influences T cell effector function to varying levels in different anatomical locations. Importantly, control of splenic T cell numbers during P. berghei ANKA infection depended on active IFN-γ-dependent environmental signals--leading to T cell apoptosis--rather than upon intrinsic alterations in T cell programming. To our knowledge, this is the first study to fully investigate the role of IFN-γ in modulating T cell function during P. berghei ANKA infection and reveals that IFN-γ is required for efficient contraction of the pool of activated T cells
Dispelling the Myths Behind First-author Citation Counts
No full textWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
- …
