Results 21 to 30 of about 544,634 (294)
An Accelerated Directional Derivative Method for Smooth Stochastic Convex Optimization
, 2020 We consider smooth stochastic convex optimization problems in the context of algorithms which are based on directional derivatives of the objective function.
Dvurechensky, Pavel +2 more
core +1 more source
An introduction to non-smooth convex analysis via multiplicative derivative
Journal of Taibah University for Science, 2019 In this study, *-directional derivative and *-subgradient are defined using the multiplicative derivative, making a new contribution to non-Newtonian calculus for use in non-smooth analysis.
Ali Hakan Tor
doaj +1 more source
Adaptive multi-channel MAC protocol for dense VANET with directional antennas [PDF]
, 2009 Directional antennas in Ad hoc networks offer more benefits than the traditional antennas with omni-directional mode. With directional antennas, it can increase the spatial reuse of the wireless channel.
Xie, Xu +7 more
core +1 more source
The Derivation of Direction Selectivity in the Striate Cortex [PDF]
The Journal of Neuroscience, 2004 In the central visual pathway of binocular animals, the property of directional selectivity (DS) is first exhibited in striate cortex. In this study, we sought to determine the neural circuitry underlying the transformation from non-DS neurons to DS cortical cells.
Matthew R, Peterson +2 more
openaire +2 more sources
The Direct Thiation of Pyrimidinol Derivatives.
Chemical and Pharmaceutical Bulletin, 1963 The replacement of 4-hydroxyl group of aminopyrimidinols by sulfhydryl in one step, through the action of phosphorus pentasulfide in triethylamine or 3-picoline. 5-Acylamino-6-amino-4-pyrimidinols were treated with phosphorus pentasulfide in pyridine, to yield thiazolo [5, 4-d] pyrimidine and 6-purinethiol compounds.
Ueda, Takeo +2 more
openaire +3 more sources
Automated Directional Measurement System for the Acquisition of Thermal Radiative Measurements of Vegetative Canopies [PDF]
, 2009 The potential for directional optical and thermal imagery is very large. Field measurements have been performed with a goniometer on which thermal instruments were attached.
Christiaan van der Tol +13 more
core +1 more source
Nonlinear Sherman-type inequalities
Advances in Nonlinear Analysis, 2018 An important class of Schur-convex functions is generated by convex functions via the well-known Hardy–Littlewood–Pólya–Karamata inequality. Sherman’s inequality is a natural generalization of the HLPK inequality.
Niezgoda Marek
doaj +1 more source
Ultra-Broadband Directional Couplers Using Microstrip with Dielectric Overlay in Millimeter-Wave Band [PDF]
, 2011 Nowadays, millimeter-wave systems are being a key factor to develop wide band applications. In this paper, a directional coupler in millimeter-wave band using dielectric overlay is presented.
Alonso Montes, José I. +4 more
core +1 more source
Directed Carbozincation Reactions of Cyclopropene Derivatives [PDF]
Journal of the American Chemical Society, 2009 A diastereoselective procedure has been developed for the Cu-catalyzed addition of diorganozinc reagents to cyclopropene derivatives. Ester and oxazolidinone functions direct the addition of a variety of organozinc reagents with excellent facial selectivity.
Vinod, Tarwade +3 more
openaire +2 more sources
Fractal and Fractional, 2022 To obtain new solitary wave solutions for non-linear directional couplers using optical meta-materials, a new extended direct algebraic technique (EDAT) is used. This model investigates solitary wave propagation inside a fiber. As a result, twin couplers
Adeel Asad +2 more
doaj +1 more source