7,374 research outputs found
Outcomes of three-year multidisciplinary services for the students with special need in Taipei County
No full textUse of polymerase chain reaction to detect Proteus mirabilis and Ureaplasma urealyticum in urinary calculi
No full textLagrangian single-particle turbulent statistics through the Hilbert-Huang transform
Full text linkThe Hilbert-Huang transform is applied to analyze single-particle Lagrangian velocity data from numerical simulations of hydrodynamic turbulence. The velocity trajectory is described in terms of a set of intrinsic mode functions Ci(t) and of their instantaneous frequency ¿i(t). On the basis of this decomposition we define the ¿-conditioned statistical moments of the Ci modes, named q-order Hilbert spectra (HS). We show that such quantities have enhanced scaling properties as compared to traditional Fourier transform- or correlation-based (structure functions) statistical indicators, thus providing better insights into the turbulent energy transfer process. We present clear empirical evidence that the energylike quantity, i.e., the second-order HS, displays a linear scaling in time in the inertial range, as expected from a dimensional analysis. We also measure high-order moment scaling exponents in a direct way, without resorting to the extended self-similarity procedure. This leads to an estimate of the Lagrangian structure function exponents which are consistent with the multifractal prediction in the Lagrangian frame as proposed by Biferale et al. [ Phys. Rev. Lett. 93 064502 (2004)]
Transfer of a foreign gene to Japanese abalone (Haliotis diversicolor supertexta) by direct testis-injection.
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Increased liver and lupus mortalities in 24 years follow-up of the Taiwanese people highly exposed to polychlorinated biphenyls and dibenzofurans.
No full textMechanosensitive N-methyl-D-aspartate receptors contribute to sensory activation in the rat renal pelvis.
No full textMultiphoton Imaging and Quantitative Analysis of Collagen Production by Chondrogenic Human Mesenchymal Stem Cells Cultured in Chitosan Scaffold.
No full textTissue factor activity of SW-480 human colon adenocarcinoma cells is modulated by thrombin and protein kinase C activator.
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