Results 251 to 260 of about 22,098 (307)

A Perturbation Model of Gradient Energy Anisotropy for Phase-Field Simulation of Ferroelectrics. [PDF]

Materials (Basel)
Shi X, Liu J, Xu K, Wang H, Wang Z, Wang N, Huang H, Liu Z.   +7 more
europepmc   +1 more source

Quantum higher-order Fourier analysis and the Clifford hierarchy. [PDF]

Proc Natl Acad Sci U S A
Bu K, Gu W, Jaffe A.
europepmc   +1 more source

Reset-free DNA logic circuits for real-time input processing and memory. [PDF]

Sci Adv
Sim J, Kim T, Kim W, Jeong S, Choi E, Kim S, Choi H, Yim SS, Choi Y.   +8 more
europepmc   +1 more source

Carbon-iodine atropisomerism on triazole and triazolium frameworks: a breathing axle with divergent adaptivity. [PDF]

Chem Sci
Nambu R, Kikuchi J, Matsumoto A, Yoshikai N.   +3 more
europepmc   +1 more source

An algorithm underlying directional hearing in fish

Veith J, Svanidze A, Judkewitz B.
europepmc   +1 more source

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Derivation of the third-order directional derivative

Pattern Recognition Letters, 1993
Summary: We give an easy derivation of the third order directional derivative in the direction of the gradient of the intensity function. The obtained formula is a correction of the formula found by \textit{J. J. Clark} [IEEE Trans. Pattern Anal. Mach. Intell. 11, No. 1, 43-57 (1989; Zbl 0665.68066)].
exaly   +2 more sources

Subdifferential estimate of the directional derivative, optimality criterion and separation principles

Optimization, 2013
International audienceWe provide an inequality relating the radial directional derivative and the subdifferential of proper lower semicontinuous functions, which extends the known formula for convex functions.
Marc Lassonde
exaly   +2 more sources

Direct Density Derivative Estimation

Neural Computation, 2016
Estimating the derivatives of probability density functions is an essential step in statistical data analysis. A naive approach to estimate the derivatives is to first perform density estimation and then compute its derivatives. However, this approach can be unreliable because a good density estimator does not necessarily mean a good density derivative
Hiroaki Sasaki, Yung-Kyun Noh, Gang Niu 0001, Masashi Sugiyama   +3 more
openaire   +2 more sources

Direct carboxyhemoglobin determination by derivative spectroscopy

Forensic Science International, 1989
A fast and sensitive method for the determination of carboxyhemoglobin (COHb) in blood using derivative spectroscopy is described. The addition of sodium dithionite as a reducing agent is not required. The concentration interval studied was from 0.5% to 100% COHb.
M, López-Rivadulla, A M, Bermejo, P, Fernández, A, Cruz, L, Concheiro   +4 more
openaire   +2 more sources