111,400 research outputs found
Haemaphysalis menglaensis Pang, Chen and Xiang 1982
No full text98. Haemaphysalis menglaensis Pang, Chen and Xiang, 1982. An Oriental species known only to parasitize Artiodactyla: Cervidae. M: Pang et al. (1982) F: Pang et al. (1982) N: unknown L: unknown Redescriptions M: Teng and Jiang (1991) F: Teng and Jiang (1991)Published as part of Guglielmone, Alberto A., Petney, Trevor N. & Robbins, Richard G., 2020, Ixodidae (Acari: Ixodoidea): descriptions and redescriptions of all known species from 1758 to December 31, 2019, pp. 1-322 in Zootaxa 4871 (1) on page 178, DOI: 10.11646/zootaxa.4871.1.1, http://zenodo.org/record/442334
Effects of microstructure on room temperature fatigue crack initiation and short crack propagation in Udimet 720Li Ni-base superalloy
No full textAn assessment of the effects of microstructure on room temperature fatigue crack initiation and short crack propagation in a Ni-base superalloy is presented. The assessment was carried out on microstructural variants of U720Li, including as-received U720Li, U720Li-LG (large grain variant) and U720Li-LP (large intragranular coherent ?? variant). Fatigue tests were carried out at room temperature using a 20Hz sinusoidal cycling waveform on plain bend bars. Tests were conducted in 3-point bend under load control with an R-ratio of 0.1. A maximum load of 95% ?y was used in all tests. Room temperature fatigue crack initiation was noted to occur due to slip band cracking and from porosity on or just beneath the surface in all materials. Crack propagation was noted to be highly faceted (due to planar slip band cracking) immediately after crack initiation followed by a transition to a flatter Stage II type crack path as crack length increases. U720Li-LP was noted to show the longest fatigue lifetime, followed by U720Li-LG while U720Li shows the shortest life. The longer lifetime of U720Li-LP was linked to a higher resistance to both fatigue crack initiation and short crack propagation. U720Li and U720Li-LG show approximately similar crack initiation resistance although U720Li-LG showed slightly improved short crack growth resistance. The observations have been rationalised in terms of the microstructural characteristics of the materials, and it is believed that larger grain size, larger coherent ?? precipitate size and higher volume fractions of both coherent and primary ?? precipitates will improve overall fatigue lifetimes in PM Ni-base alloys which exhibit planar slip characteristics at room temperature
Novius marek Slipinski and Pang 2020, sp. nov.
No full textNovius marek Ślipiński and Pang sp. nov. (Figs 30–49) Etymology. Dedicated to our friend Prof. Marek Wanat of the Wroclaw University, Poland acknowledging his dedication to study of beetles in New Caledonia. The species name “ marek ” is derived from the first name of Marek Wanat and should be treated as a noun in apposition. Diagnosis. This is the largest species of Novius known so far with its body length over 6.5 mm distinctly exceeding the length of the largest known Asian species reaching up to 5.1 mm. The elongate and almost completely flattened body and the characters of male genitalia will immediately distinguish this species from all larger species of the genus. Description. Length 6.5–7.1 mm. Body elongate, 1.4–1.5 times longer than broad; dorsum weakly convex, almost flat (Figs 39–43), covered by very dense inclined yellowish pubescence, forming irregular pattern of spirals and concentric circles. Colour yellow or yellowish brown; head on vertex and pronotum with central part darker; elytra with irregular darker zigzag pattern, in some specimens hardly visible at all. Head with frontal area shallowly concave; eyes separated by about 2 widths of an eye. Antenna relatively long and loosely articulated, length 1.0–1.3 times frontal width between eyes; three terminal segments form very weak serrate club. Pronotum transverse, 2.4–2.5 times broader than long, broadest slightly before mid-length; lateral sides arcuate more strongly narrowing posteriorly than towards broadly rounded anterior angles. Elytra 1.2–1.3 times as long as broad and about 4 times as long as pronotum. Scutellum triangular, 1.1–1.2 times broader than long. All femora and tibiae slender, not much expanded. Pretarsal claw with large and pointed basal tooth in female, apically split in male. Male genitalia as in Figs 48–52. Female genitalia as in Figs 45–47. Holotype male. New Caledonia, -21.6216 / 165.8774, Plateau de Dogny, 9.11. 2010, 960m, leg. R. Ruta (MNHN). Paratypes all females. New Caledonia, Bourail, 10-20 December 1998, On U.V. light, leg. G.& K. Hangay (1, AM); Nov. 8.1944, Wilfred Crabb (1, USNM); – 21.6387 / 165.7697, rd to Parc des Grandes Fougeres (araucarias 1 km before gate), 7.11. 2010, 470m, at light. Leg. R.Ruta, M. Wanat (1, NHMUW); – 21.76674 / 166.00540, Mt Do, 5.11. 2008, 850m, at light. Leg. M. Wanat; DNA voucher CSR 214 (1, ANIC).Published as part of Pang, Hong, Tang, Xue-Fei & Ślipiński, Adam, 2020, A New Species Of Novius Mulsant From New Caledonia (Coleoptera: Coccinellidae: Noviini), pp. 25-32 in Annales Zoologici 70 (1) on page 26, DOI: 10.3161/00034541ANZ2020.70.1.002, http://zenodo.org/record/377665
Investigation of Lagrangian coherent structures in a wake-induced boundary layer transition
No full textThe evolution of coherent structures in a flat plate boundary layer transition induced by the cylinder wake is investigated using the particle image velocimetry (PIV) technique. The finite-time Lyapunov exponent (FTLE), which characterizes the amount of stretching about the flow trajectory, is used to extract the Lagrangian coherent structures. It is revealed that secondary vortex is induced by the cylinder wake vortices in the near wall region,which would evolve into hairpin vortex as it convects downstream. The subsequent evolvement of the hairpin vortex, characterized by the regeneration of offspring hairpin vortex upstream of it, leads to the appearance of the hairpin packet and the boundary layer finally reaches a turbulent state
MGA SARILING KOMPOSISYON NG MGA PANITIKANG PAMBATA AT ANTAS NG PANG- UNAWA SA PAGBASA
No full textAng pag-aaral na ito ay isinagawa upang mabatid ang pananaw ng mag-aaral sa paggamit ng mga sariling komposisyon ng panitikang pambata at antas ng pang-unawa. Sa pag-aaral na ito binibigyang katugunan ang mga sumusunod na katanungan: Ano ang pananaw ng mga tagasagot sa paggamit ng mga Sariling Komposisyon ngPanitikang Pambata bataysa nilalaman,layunin,disensyo/istilo, kasanayan/gawain; Ano ang antas ng pang-unawa ng mga tagasagot sa paggamit ng mga Sariling Komposisyon ng Panitikang Pambata batay sa Pang-unawang Literal at Pang-unawangKritikal; May makabuluhang kaugnayan ba ang pananaw ng mag-aaral sa paggamit ng mga Sariling Komposisyon ng Panitikang Pambata at Antas ng Pang- unawa sa Pagbasa; Ang pamamaraang palarawan-correlation ang ginamit ng mananaliksik upang makalap ang mahalaga at makatotohanang impormasyon na kinakailangan sa pag-aaral. Ang istatistikal na pamamaraan na ginamit sa pagsasaliksik ay weighted mean at standard deviation para sa pananawng mga tagasagot sa Mga Sariling Komposisyon ng Panitikang Pambata at Antas ng Pang-unawa sa Pagbasa. Upang maipakita ang kaugnayan ng paggamit ng Mga Sariling Komposisyon ng Panitikang Pambata at Antas ng Pang-unawa sa Pagbasa ay ginamit ng mananaliksikng Frequency at Colleration(Pearson r) Sa naging pag- aaral lumabas ang mga sumusunod na mean: Para sa pananaw ng mga tagasagot sa Mga Sariling Komposisyon ng Panitikang Pambata batay sa layunin (3.53), nilalaman (3.58), disenyo/istilo (3.63), at kasanayano gawain (3.59) at ang kinalabasan ng resulta sa Antas ng pang-unawa sa pagbasa batay sa Pang- unawang Literal at Pang-unawang Kritikal, ay nagkaroon ng frequency na 75 at may kabuoang 100 na porsiyento.Bilang pangkalahatang pagsusuri sa pananaw ng mga tagasagot sa paggamit ng mga Sariling Komposisyon ng Panitikang Pambata. Batay sa resulta ng pag-aaral, natuklasan na may mataas na pananaw ang mga mag-aaral sa antas ng pangunawa sa pagbasa sa paggamit ng mga sariling komposisyon ng panitikang pambata. Nakatulong ang paggamit ng mga sariling komposisyon ng mga panitikang pambata upang mapataas ang antas ng pangunawa sa pagbasa.Batay sa sa naging resulta ng pag-aaral, walang makabuluhang kaugnayan ang ReplektibongDulog sa Pagtuturo at Kasanayan sa Pagbigkas ng Talumpati
Escalonia Jin & Ślipiński & Keyzer & Pang 2017
No full textKey to the species of <i>Escalonia</i> <p> 1 Elytra emarginate at apex, elytral costa 1 oblique and connected to costa 2 (Fig. 5A); pronotal disc with a distinctive gravel shaped dark brown marking on basomedial raised areas..................................... <i>E. loxleyae</i> (McKeown)</p> <p>- Elytra more or less truncate at apex, never emarginate, elytral costae different; pronotal disc without a well-defined dark brown marking on basomedial raised areas....................................................................... 2</p> <p> 2 Elytra with obvious brown longitudinal stripes on weak costae, interrupted by oblique yellow stripe near middle (Fig. 5 G); pronotum bicoloured........................................................New Guinea <i>E. intricata</i> (Gressitt)</p> <p>- Elytral costae not in contrastive colour, only subparallel ridges; pronotum unicolour; Australia........................ 3</p> <p> 3 Head darker than pale yellow pronotum; elytra as in Figure 5 D; dorsal surfaces smooth between punctures, strongly shiny........................................................................................ <i>E. surprise</i> <b>sp. nov.</b></p> <p> - Head and pronotum brown; elytra as in Figure 5 F; dorsal surfaces reticulate between punctures, feebly shiny................................................................................................... <i>E. carolinae</i> <b>sp. nov</b></p>Published as part of <i>Jin, Mengjie, Ślipiński, Adam, Keyzer, Roger De & Pang, Hong, 2017, Review of Australian genera Tessaromma Newman and Phlyctaenodes Newman with description of a new genus and species (Coleoptera: Cerambycidae: Cerambycinae: Phlyctaenodini), pp. 67-85 in Zootaxa 4277 (1)</i> on pages 80-81, DOI: 10.11646/zootaxa.4277.1.5, <a href="http://zenodo.org/record/809081">http://zenodo.org/record/809081</a>
Cretocantharis Hsiao & Li & Ren & Pang 2021, GEN. NOV.
No full text† CRETOCANTHARIS GEN. NOV. (FIGS 3–4) Z o o b a n k r e g i s t r a t i o n: u r n: l s i d: z o o b a n k. org:act: 99722309-6744-4BE2-9C5C-F85BDDEF6C68. Type species: † Cretocantharis veda. Diagnosis: Body small (c. 2.5 mm) (Fig. 3); eyes large, hemispherically prominent (Fig. 4A, B); apical maxillary palpomere bilaterally symmetric, securiform; mandibles simple, without tooth on the inner margin; antennae filiform, pedicel and antennomere 3 subequal in length (Fig. 3A). Pronotum subquadrate, parallel-sided, with a shallow median groove (Fig. 4C). Elytra slightly shortened, disc deeply punctate and reticulate, with longitudinal costae and inconspicuous cells (Fig. 4D). Legs elongate, with lobed tarsomere 4 and simple claws (Figs 3, 4F). Etymology: The name is composed of the prefix Creto derived from the Cretaceous and the Greek word κάνθαρισ, a beetle, derived from the genus Cantharis Linnaeus, 1758, type of Cantharidae. Gender: feminine.Published as part of Hsiao, Yun, Li, Yun, Ren, Dong & Pang, Hong, 2021, Morphological phylogenetics provide new insights into the classification and evolution of fossil soldier beetles from Mid-Cretaceous Burmese amber (Coleoptera: Cantharidae), pp. 1271-1293 in Zoological Journal of the Linnean Society 193 on page 1281, DOI: 10.1093/zoolinnean/zlaa184, http://zenodo.org/record/575325
Telsimia sichuanensis Pang & Mao 1979
No full text<i>Telsimia sichuanensis</i> Pang ­­&­­Mao <p>(Fig. 10)</p> <p> <i>Telsimia sichuanensis</i> Pang & Mao, 1979: 101.— Ren <i>et al.</i> 2009: 152; Bi <i>et al</i>. 2022: 25.</p> <p> <i>Telsimia sichuanensis</i> was originally described from China (Pang & Mao 1979) and recently, Bi <i>et al.</i> (2022) provided an illustrated diagnostic account based on its male genitalia in their review of Chinese <i>Telsimia</i> spp. It is added to the Indian fauna of Coccinellidae based on a single male specimen collected from the northeastern Indian state of Manipur. The adult is dorsally fully black except the clypeal margin of head (Fig. 10a) is anteriorly paler yellowish and ventral side is black except mouthparts and antenna are yellowish and the legs are reddish brown. The antenna (Fig. 10b) is 7-segmented and very short with the last antennomere oval and telescoped into the previous antennomere. The last abdominal ventrite in male is posteriorly emarginate (Fig. 10c). The male genitalia (Fig. 10d–g) were found to be identical with the illustrations given by Pang & Mao (1979) and Bi <i>et al</i>. (2022).</p> <p> <b> <i>Material examined</i>.</b> India: Manipur, Churachandpur, N 24°20’37.9” E 93°39’06.3”, 1077m, 2.x.2013, Prathapan D & Shameem K Coll. (ICAR-NRCB).</p> <p> <i>Distribution.</i> India (Manipur) (<b>new­­record</b>); China.</p>Published as part of <i>Poorani, J. & Thanigairaj, R., 2023, -- A- - brief- - review- - of- - the- - tribe- - Telsimiini- - (Coleoptera: -- Coccinellidae) -- of- - the- - Indian-subcontinent, -- including- - three- - new- - species- - of- - Telsimia Casey- - from- - South- - India, pp. 358-380 in Zootaxa 5352 (3)</i> on pages 371-373, DOI: 10.11646/zootaxa.5352.3.2, <a href="http://zenodo.org/record/8407416">http://zenodo.org/record/8407416</a>
Establishing fine-grained sediment budgets for the Pang and Lambourn LOCAR catchments, UK
No full textAn integrated approach to data collection, combining the use of 137Cs measurements, sediment source fingerprinting, bed sediment surveys and conventional river monitoring, has been successfully employed to establish the fine-grained sediment budgets of two lowland groundwater-fed catchments in the UK. Gross surface erosion is higher on cultivated land (Pang: 55 263 t yr−1 or 507 t km−2 yr−1; Lambourn: 79 997 t yr−1 or 437 t km−2 yr−1) than on pasture (Pang: 1960 t yr−1 or 140 t km−2 yr−1; Lambourn: 1425 t yr−1 or 95 t km−2 yr−1) in both study areas and a substantial proportion of the mobilized sediment is sequestered within the fields (Pang: 28 058 t yr−1 or 228 t km−2 yr−1; Lambourn: 55 575 t yr−1 or 281 t km−2 yr−1) and between the individual fields and the river channel network (Pang: 28 672 t yr−1 or 233 t km−2 yr−1; Lambourn: 24 782 t yr−1 or 125 t km−2 yr−1). The sediment contribution from banks and subsurface sources is relatively low and typically ca. 5 t yr−1 in the Pang and ca. 11 t yr−1 in the Lambourn, representing only about 1% of the suspended sediment output from each study catchment. The mean level of fine-grained sediment storage in the main channel system is equivalent to 38% (Pang) and 21% (Lambourn) of the respective mean annual suspended sediment yields of the two catchments. The estimated sediment delivery ratio for both study catchments is ca. 1%
The Conflicting “Norms” of Science in the Institutionalization of Scientific Knowledge
No full textT. Menkhoff, H. Evers, Y.W. Chay, E.F. Pang</p
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