Results 261 to 270 of about 22,098 (307)
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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   +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   +3 more
openaire   +1 more source

Direct Addition of Glycine Derivatives to Enamines

Chemistry Letters, 2005
Abstract Direct addition of glycine derivatives to enamines proceeded smoothly in the presence of a catalytic amount of a Lewis acid to afford the corresponding α,β-diamino acid derivatives in excellent yields. In this reaction, enamines would initially act as a base and subsequently as a C=N electrophile.
Jun Kobayashi   +2 more
openaire   +1 more source

On the direct derivation of the resistivity

Journal of Physics C: Solid State Physics, 1973
A linear response expression for the isothermal local resistivity is derived with the many-variable projection technique of Mori (1965). The isothermal local resistivity is given by a force-force response function, and it is inverse to the isothermal local electric conductivity.
openaire   +1 more source

Direct computation of derivatives of eigenvalues and eigenvectors

International Journal of Computer Mathematics, 1990
A gap is closed in a previously published proof of a result concerning direct computation of derivatives of eigenvalues and eigenvectors of parameter-dependent matrices. The result is strengthened and the problem discussed.
Alan L. Andrew   +2 more
openaire   +1 more source

Directional derivates in minimax problems(∗)

Numerical Functional Analysis and Optimization, 1985
Etude de l'existence et d'une caracterisation de la derivee directionnelle h'(x 0 ; d) de la fonction h(x)=Inf Sup L (x,u,v)/u∈U 0 v∈√ 0 definie sur un espace lineaire topologique de Hausdorff. La fonction L(x,o,o) definie sur le produit de deux espaces de Hausdorff U et V verifie la propriete de point selle Inf Sup L(x,u,v)/u∈U 0 v∈√ 0 =Sup Inf L(x,
Correa, Rafael, Seeger, Alberto
openaire   +2 more sources

The structure-directed synthesis of cyclacene and polyacene derivatives

Pure and Applied Chemistry, 1993
Abstract
GIRRESER U   +5 more
openaire   +3 more sources

The directional derivative

1967
In this chapter we shall be concerned with a function F(x, y) of two variables x and y. x is supposed to be a point of Euclidean space R n , x = (x1, ..., x n ), and y a point of some compact topological space y. While all the considerations of this chapter are carried out for a general y, the applications made in this book have y a closed bounded set ...
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Direct methylation and trifluoroethylation of imidazole and pyridine derivatives

Chemical Communications, 2003
AbstractFor Abstract see ChemInform Abstract in Full Text.
Jie, Zhang   +2 more
openaire   +2 more sources

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