Results 251 to 260 of about 21,799 (306)

Frequency-tunable acoustic absorption in anisotropic graphene aerogels <i>via</i> morphological engineering of internal barriers. [PDF]

RSC Adv
Jin J, Ahn JG, So Yeon A, Lee R, Park T, Lee DJ, Song SH.   +6 more
europepmc   +1 more source

Value Functions and Their Directional Derivatives in Parametric Nonlinear Programming [PDF]

Journal of Optimization Theory and Applications, 2015
We study questions of existence and calculation of directional derivatives of value functions of nonlinear mathematical programming problems depending on parameters.
L Minchenko
exaly   +2 more sources

On second-order directional derivatives of value functions [PDF]

Optimization, 2015
Directional derivatives of value functions play an essential role in the sensitivity and stability analysis of parametric optimization problems, in studying bi-level and min–max problems, in quasi-differentiable calculus.
L Minchenko
exaly   +2 more sources

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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

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)].
openaire   +1 more source

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

On the Derivation of Shell Theories by Direct Approach

Journal of Applied Mechanics, 1974
A constrained theory of shells by a direct approach, based on a general theory of a Cosserat surface, is derived and its relation to other recent developments obtained by direct procedures is indicated.
Green, A. E., Naghdi, P. M.
openaire   +1 more source

Selective Direct Fluorination of Quinoline Derivatives.

ChemInform, 2002
AbstractFor Abstract see ChemInform Abstract in Full Text.
Richard D Chambers, Darren Holling, Graham Sandford, Horst Puschmann, Judith A.K Howard   +4 more
openaire   +1 more source

Predicting the Direction of Derivation in English Conversion

Proceedings of the 14th SIGMORPHON Workshop on Computational Research in Phonetics, Phonology, and Morphology, 2016
Conversion is a word formation operation that changes the grammatical category of a word in the absence of overt morphology. Conversion is extremely productive in English (e.g., tunnel, talk). This paper investigates whether distributional information can be used to predict the diachronic direction of conversion for homophonous noun‐verb pairs.
Max Kisselew, Laura Rimell, Alexis Palmer, Sebastian Padó   +3 more
openaire   +1 more source