4,671 research outputs found
Finite spectral essentially non-oscillatory scheme
No full textIn this paper a new finite spectral essentially non-oscillatory (FSENO) scheme is proposed for treating discontinuities in computational fluid dynamics. The new scheme is based on the finite spectral method and the idea of essentially non-oscillatory (ENO). Uniform high-order accuracy in smooth regions of solutions and sharp capturing of shock waves and other discontinuities are achieved by using it. We present numerical results for various one-dimensional Euler equations including Sod's and Lax's test problems. Finally, we simulate a turbulent flow compressed by a shock wave and a two-dimensional detonation.Computer Science, Interdisciplinary ApplicationsMathematics, Interdisciplinary ApplicationsPhysics, Fluids & PlasmasCPCI-S(ISTP)
Activation of multifarious transcription of an adhesion protein gene ap65-1 by a novel Myb2 protein in the protozoan parasite Trichomonas vaginalis
No full textSUPERCRITICAL-FLUID EXTRACTION OF TAXOL AND BACCATIN-III FROM NEEDLES OF TAXUS-CUSPIDATA
No full textTaxol and baccatin III were extracted from the ground needles of Taxus cuspidata using supercritical carbon dioxide mixed with 3 wt % ethanol as a cosolvent. The pressure and temperature ranges used to attain supercritical fluid condition are 100 approximately 300 bar and 40 approximately 70-degrees-C, respectively. However, the amount of taxol and baccatin III in the extract obtained at 100 bar was not noticeable, while the major portion of extract was found to be the waxy compounds. The highest selectivity of taxol and baccatin III were about 0.094 and 0.158 wt %, respectively, at 40-degrees-C and 300 bar. At the same pressure and temperature condition, taxol and baccatin III selectivities in the extract obtained from the ground seeds of Taxus cuspidata was about 0.198 and 0.157 wt %, respectively.This work was supported by the Ministry of Science and Technology, the Korea Science and
Engineering Foundation, and University Awards Program of the Korea Advanced Institute of Science and
Technology
Sigmatoneura aquilis Liu, Li & Liu, 2011, sp. nov.
No full textSigmatoneura aquilis sp. nov. (Figs. 12–18) Male. Coloration (in alcohol). Body brown. Head (Fig. 12) brown with dark brown markings: a band of spots bordering epicranial suture stretching bilaterally on vertex; a quadrate frame on frons opening anteriorly and extending to antennal fossa. Compound eyes grayish black; ocelli black with grayish black ocellar field. Antennae and labrum dark brown; maxillary palpi brown with distal segments dark brown. Thorax brown with dark brown spots. Legs brown, with a band of dark brown marking on femur, tarsi and distal part of tibia dark brown. Fore wing (Fig. 13) hyaline with light brown markings basally, pterostigma fully dark brown with a dark brown band along proximal margin; hind wing (Fig. 14) hyaline, with light brown markings basally. Abdominal segments brown with dark brown spots; apical regions dark brown. Morphology. Head small, epicranial suture concave and distinct. Fore wing: pterostigma with moderate hind angle, Rs-M crossvein short, distal margin of discoidal cell concave, Cu 1 a and M fused for a short distance or meeting at a point, radial fork branches diverge at an angle about 90 °. Hind wing without marginal setae between R 2 + 3 and R 4 + 5. Hind tibia normal. Abdomen ovoid. Phallosome (Fig. 15) a frame, longer than wide, acuminate proximally and narrow distally, with posterior margin straight. Hypandrium (Fig. 16) with membranous regions anteromedially and marginally, sclerotized arms forming broad T-shaped regions. Epiproct (Fig. 17) with unsclerotized regions antero- and disto-medially; paraproct (Fig. 18) broad triangular, with a strong apical spine, sensory field with about 42 trichobothria. Measurements. Bw: 6482, B: 4324, FW: 5367, HW: 3567, F: 1422, T: 1774, t 1: 467, t 2: 327, Mx 4: 287, f 1: 2372, f 2: 2304, f 3: 2301, IO/d: 2.867. Material examined. Holotype male, CHINA: Guizhou Province, Kuankuoshui Nature Reserve, 12.viii. 2010, Luxi Liu (CAU). Paratype, CHINA: 1 male, same as holotype. Distribution. China (Guizhou). Etymology. The species name refers to the obvious dark coloration of the specimens. Remarks. The fore wing of the new species is most similar to Sigmatoneura kolbei described from Japan (Enderlein, 1906). Tsutsumi (1965) provided genitalia characters of S. kolbei from Taiwan, and the phallosome of S. aquilis is narrower distally and lacks lateral apophyses. Sclerotization regions in the epiproct and hypandrium are also different between the two species.Published as part of Liu, Luxi, Li, Fasheng & Liu, Zhiqi, 2011, The genus Sigmatoneura Enderlein (Psocoptera: Psocidae), with two new species from China, pp. 33-41 in Zootaxa 2999 on pages 38-39, DOI: 10.5281/zenodo.20307
Heterobifunctional PEG-tethered BMP-2 stimulated bone marrow mesenchymal stromal cells differentiation and osteogenesis.
No full textInclusion of biological factors in parallel architecture NTCP model for radiation-induced liver disease
No full textTargeted delivery system for juxtacrine signaling growth factor based on rhBMP-2-mediated carrier-protein conjugation.
No full textMonoamine levels in the nucleus accumbens correlate with male sexual behavior in middle-aged rats.
No full textInvolvement of multiple DNA elements in iron-inducible transcription of the ap65-1 gene in the protozoan parasite Trichomonas vaginalis.
No full textSulcolotis ovalis Liu & Wang & Guo & Chen & Wang 2022, sp. nov.
No full textSulcolotis ovalis Liu & Wang sp. nov. (Figs 3a–g) Diagnosis. This species is most similar to S. threadis sp. nov. in external appearance but can be distinguished from the latter by the penis guide shorter than parameres. In S. threadis sp. nov., the penis guide is nearly as long as parameres in lateral view. Description. TL: 2.63–2.86mm, TW: 2.26–2.37mm, TH: 1.37–1.59mm, TL/TW: 1.16–1.21, PL/PW: 0.28– 0.30, EL/EW: 0.94–0.99, HW/PW: 0.56–0.58, PW/TW: 0.63–0.64, HW/TW: 0.35–0.37, Eye W/HW: 0.43–0.46. Head reddish brown. Elytra reddish brown with a long ovate black spot situated at 1/3 elytral length to base. Underside yellowish brown, except metaventrite and the middle part of the first abdominal ventrite reddish brown. Body rounded, weakly convex, shiny and glabrous. Eyes finely faceted, interocular distance 0.45 times width of head. Frons broad with irregular transparent spots, punctures uniform and dense (Fig. 3c). Pronotum 0.64 times of elytral width (PW/TW=1:1.6), moderately transverse, punctures uniform and dense (Fig. 3c). Elytra with uniform and dense punctures (Figs 3a–c). Ventrite 6 subhemisphenical and ventrite 7 nearly straight (Fig. 3g). Male genitalia: penis relatively short and slender, apex pointed, penis capsule with nearly same length of inner arm and outer arm. Tegmen with penis guide in lateral view slender, widest at base, narrowing to apex, distinctly shorter than parameres. Type material. Holotype: ♂, Philippines, Butuan Mindanao, Baker (USNM). Paratypes: 2 ♀♀, same data as holotype (USNM). Distribution. Philippines (Mindanao). Etymology. The specific epithet is formed from the Latin noun ovalis, referring to elytra with a long ovate black spot.Published as part of Liu, Liyuan, Wang, Yan, Guo, Qiuhong, Chen, Xiaosheng & Wang, Xingmin, 2022, Three new species of the genus Sulcolotis Miyatake (Coleoptera, Coccinellidae Sticholotidini) from the Philippines, pp. 75-82 in Zootaxa 5168 (1) on pages 78-79, DOI: 10.11646/zootaxa.5168.1.6, http://zenodo.org/record/687646
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