590 research outputs found
Effect of HCl in NaCl solution in the determination of exchange acidity and its simulation by MINEQL. 1996.
No full textExpression of cholesterol oxidase gene from Arthrobacter simplex in Escherichia coli and Pichia pastoris
No full textArray Observations for the Narrow-Band Background Noises in the Hualien Area and their Seismological Implications
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Development of PCA-based cluster quantile regression (PCA-CQR) framework for streamflow prediction: Application to the Xiangxi river watershed, China
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Phortica (Phortica) xianfui Huang & Gong & Tsaur & Zhu & An & Chen 2019, sp. nov.
No full textPhortica (Phortica) xianfui Gong & Chen, sp. nov. (Fig. 37) Diagnosis. This species is very similar to P. subradiata (Okada, 1977) in the shape of paramere, but can be distinguished from the latter by having the vertical process of gonopod radiated apically (Fig. 37C); two basal bridges of aedeagal median rod fused to each other (Fig. 37C). Description. Frons dark brown. Face brownish. Mesoscutum and pleura brownish yellow, with brown spots and pollinose pattern. Scutellum brownish yellow, with 1 pair of dark brown patches distolaterally. Male terminalia (Fig. 37): Epandrium pubescent anteroventrally, with ca. 14 setae on dorsal to posterolateral portion per side (Fig. 37A). Surstylus basally pubescent on outer surface, with ca. 6 wedge-like prensisetae on apical margin (Fig. 37B). Posterolateral lobe of hypandrium undeveloped and lacking pubescence (Fig. 37C). Paramere expanded and pubescent distally; apical and medial processes each with 1 tooth and 1 sensillum; basal process round apically (Fig. 37D). Vertical process of gonopod apically with 4 or 5 of projections per side (Fig. 37C). Aedeagal median rod submedially with 1 pair of small processes (pr in Fig. 37C) and 1 small projection (ps). Measurements and indices. BL = 3.33 mm in holotype (range in 4♂ paratypes: 3.00–3.50), ThL = 1.69 mm (1.24–1.64), WL = 2.49 mm (2.31–2.71), WW = 1.24 mm (1.20–1.24), arb = 4/2 (4–5/2–3), avd = 0.73 (0.64–0.88), adf = 2.57 (1.80–2.60), flw = 2.14 (1.91–2.13), FW/HW = 0.43 (0.42–0.49), ch/o = 0.08 (0.08–0.09), prorb = 1.00 (0.81–1.22), rcorb = 0.44 (0.44–0.53), vb = 0.64 (0.50–0.73), dcl = 0.57 (0.47–0.68), presctl = 0.57 (0.44–0.71), sctl = 1.09 (1.05–1.11), sterno = 1.50 (1.10–1.50), orbito = 1.33 (1.33–1.80), dcp = 0.28 (0.23–0.30), sctlp = 1.13 (1.07–1.25), C = 2.19 (2.11–2.59), 4c = 1.59 (1.38–1.69), 4v = 2.82 (2.80–3.36), 5x = 1.09 (0.83–1.30), ac = 3.86 (2.26–4.17), M = 0.71 (0.63–0.93), C3F = 0.70 (0.63–0.78). Type materials. Holotype ♂ (SCAU, No. 123279), CHINA: Beibeng, Motuo, Xizang, 29°19'00''N, 95°20'00''E, alt. 1000m, 3.x.2010, J.J. Gao. Paratypes: CHINA: 8♂ (4♂ in SCAU, Nos. 123280–83, 4♂ in TMNS), Y.R. Su, L. Wang, L. Wu, same data as the holotype. Distribution. China (Xizang). Etymology. Patronym, in honour of Dr. X.F. Li (SCAU) for helping us in the fieldwork.Published as part of Huang, Jia, Gong, Lu, Tsaur, Shun-Chern, Zhu, Lin, An, Keying & Chen, Hongwei, 2019, Revision of the subgenus Phortica (sensu stricto) (Diptera, Drosophilidae) from East Asia, with assessment of species delimitation using DNA barcodes, pp. 1-75 in Zootaxa 4678 (1) on pages 68-69, DOI: 10.11646/zootaxa.4678.1.1, http://zenodo.org/record/346878
Identification of tool failure modes in drilling Udimet® 720 superalloy
Full text linkThe ACCENT Project (FP7- AAT- 2007- RTD-1) will allow the European Aero Engine manufacturers to improve their
competitiveness by applying adaptive control techniques to the manufacturing of their components. For the critical
rotating parts of aircraft engines, the surface integrity generated after machining is a key factor on the life cycle. In this context, one particular attention has to be carried on tool condition. The aim of this paper is to identify the main failure modes characterizing this particular Nickel base drilling. By experimental techniques, cartography of failure modes was realized. The results show that flank wear and notching are the main failure modes limiting the tool life. For some cutting conditions, the tool failure arrives after the first hole due to the important cutting forces. Some interesting associations are made between the spindle current/accelerometers/ thrust force and flank wear, tool breakage and notching
Tolypocladium rhizomatum M. J. Chen & B. Huang 2023, sp. nov.
No full text<i>Tolypocladium rhizomatum</i> M. J. Chen & B. Huang, <i>sp. nov.</i> Fig. 2. <p> <i>MycoBank MB848348</i></p> <p> <b>Etymology:</b> —The epithet refers to the isolated plant. The English name of <i>Polygonatum cyrtonema</i> is Rhizoma Polygonati.</p> <p> <b>Typification:</b> — CHINA. Anhui Province: Xianyu Mountain National Nature Reserve, isolated from rhizomes of <i>Polygonatum cyrtonema</i>, August 2021, Y.R. Han, M.J. Chen & J.X. Hu, dried culture on PDA, culture ex-holotype RCEF6720. Preserved in Research Center for entomogenous Fungi (RCEF). GenBank sequence data for RCEF6720: ITS= OP964612, SSU= OP964611, LSU= OP964610, TEF1-α= OP984017, RPB1= OQ031471.</p> <p> <b>Culture characteristics:—</b> Colonies on PDA growing slowly at 25°C, after 7 days, 12–14 mm diam and 22–23 mm diam after 14 days, white, velutinous and dense. Appearing some radial grooves on outer part, intermediate region unevenly raised, and the reverse yellow. Hyphae hyaline, branched, septate, smooth-walled, 1.1-2.7 μm wide. Phialides usually solitary, laterally located or acrogenous, smooth-walled, 7.5–21.6(–37.5) ×1.1–2.5μm. usually growing on the aerial mycelium or on simple conidiophores, cylindrical or conical, occasionally and slightly swollen basally, narrowly tapering into a distinct neck approximately 0.6 μm wide, terminal phialides generally elongate; neck often bent without clear denticulate scars. Conidia globose, colorless, smooth-walled, 1.4–2.2 μm, single or aggregating in heads.</p> <p>Colonies on MEA attaining a diam. of 25–26 mm in 14 d, floccose, loose and plane, intermediate region is looser, emerging shallow radial grooves, reverse yellow. Hyphae white, composed of branched, septate, smooth-walled, hyaline hyphae, 1–2.8 μm wide. Phialides solitary, laterally located or acrogenous, smooth-walled, (8.6–)9.7–17.7(–20.6) × 0.9–2.2 μm, usually growing on the aerial mycelium or on simple conidiophores, cylindrical or conical, slightly swollen basally, narrowly tapering into a distinct neck approximately 0.6 μm wide, terminal phialides generally elongate; neck often bent without clear denticulate scars. Conidia globose to ovoid, hyaline, smooth-walled, 1.4-2.2 and 1.7–2.7 × 1.2–2.2 μm.</p> <p>Colonies on OA attaining a diam. of 28–29 mm in 14 d, mycelium loose, flocculent, plane, intermediate region dense, farinose when sporulating, reverse white. Hyphae white, composed of branched, septate, smooth-walled, hyaline hyphae, 1.2–2.6 μm wide. Phialides solitary, laterally located or acrogenous, smooth-walled, (4.1–)6.2–18.5(–25.8) × 0.9–2.2 μm, usually growing on the aerial mycelium or on simple conidiophores, cylindrical or conical, slightly swollen basally, occasionally swelled to ovoid, 5–6 × 2–3 μm, narrowly tapering into a distinct neck approximately 0.6 μm wide, terminal phialides generally elongate; neck often bent without clear denticulate scars. Conidia globose to ovoid, hyaline, smooth-walled, 1.5–2.0 and 1.8–2.7 × 1.5–1.8 μm.</p> <p> <b>Notes:</b> — <i>Tolypocladium album</i>, <i>T. endophyticum</i>, <i>T. amazonense</i> and <i>T. tropicale</i> are phylogenetically and morphologically close to <i>T. rhizomatum</i>. All of them were isolated from dead or living plants (Gams, 1980; Gazis <i>et al</i>., 2014). However, the phialides of <i>T. rhizomatum</i> on PDA are longer and have slender necks. (Table 2).</p>Published as part of <i>Chen, Ming-Jun, Han, Yi-Ren, Liu, Jiang-Xin Hu Yu-Jun & Huang, Bo, 2023, Tolypocladium rhizomatum sp. nov.: an endophytic species isolated from the rhizome of Polygonatum cyrtonema, pp. 201-210 in Phytotaxa 606 (3)</i> on pages 206-207, DOI: 10.11646/phytotaxa.606.3.3, <a href="http://zenodo.org/record/8202629">http://zenodo.org/record/8202629</a>
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