Results 21 to 30 of about 80,117 (291)
Phase singularity annihilation in plasmonic nano-apertures via epsilon-near-zero metamaterials
APL Photonics, 2021 In this work, we performed an extensive theoretical and experimental study to unveil the underlying mechanisms related to the intensified transmittance in epsilon-near-zero (ENZ)-integrated plasmonic nano-apertures.
F. Ghasemzadeh +2 more
doaj +1 more source
A Note on Superconformal N=2 theories and Orientifolds [PDF]
, 1998 We construct the T duals of certain type IIA brane configurations with one compact dimension (elliptic models) which contain orientifold planes. These configurations realize four-dimensional $\NN=2$ finite field theories.
Aharony +33 more
core +2 more sources
Electronic Journal of Qualitative Theory of Differential Equations, 2015 In this article we prove a classification theorem (Main theorem) of real planar cubic vector fields which possess two distinct infinite singularities (real or complex) and eight invariant straight lines, including the line at infinity and including ...
Cristina Bujac, Nicolae Vulpe
doaj +1 more source
Cosmology and Fermion Confinement in a Scalar-Field-Generated Domain Wall Brane in Five Dimensions [PDF]
, 2006 We consider a brane generated by a scalar field domain wall configuration in 4+1 dimensions, interpolating, in most cases, between two vacua of the field.
A. Davidson +18 more
core +2 more sources
A Metaheuristic Optimization Approach for Trajectory Tracking of Robot Manipulators
Mathematics, 2022 Due to the complexity of manipulator robots, the trajectory tracking task is very challenging. Most of the current algorithms depend on the robot structure or its number of degrees of freedom (DOF).
Carlos Lopez-Franco +4 more
doaj +1 more source
DISCONNECTED REGIONS OF STABLE CIRCULAR ORBITS IN PRESENCE OF MASSIVE SCALAR FIELD
Odessa Astronomical Publications, 2017 We study circular orbits around a static spherically symmetric configuration of General Relativity in presence of a nonlinear massive scalar field (SF). The problem deals with a family of solutions to Einstein – SF equations with the SF potentials that are
O. S. Stashko, V. I. Zhdanov
doaj +1 more source
Q_l-cohomology projective planes and singular Enriques surfaces in characteristic two [PDF]
Épijournal de Géométrie Algébrique, 2019 We classify singular Enriques surfaces in characteristic two supporting a rank nine configuration of smooth rational curves. They come in one-dimensional families defined over the prime field, paralleling the situation in other characteristics, but ...
Matthias Schütt
doaj +1 more source
IEEE Access, 2020 This paper proposes an efficient and accuracy inverse kinematic algorithm for 7-DOF redundant manipulators with obstacles avoidance and singularities avoidance based on the hybrid of analytical and numerical method (IK-HAN).
Minghe Jin +3 more
doaj +1 more source
Formulation of Shell Elements Based on the Motion Formalism
Applied Mechanics, 2021 This paper presents a finite element implementation of plates and shells for the analysis of flexible multibody systems. The developments are set within the framework of the motion formalism that (1) uses configuration and motion to describe the ...
Olivier Bauchau, Valentin Sonneville
doaj +1 more source
Regular S-Brane Backgrounds [PDF]
, 2004 We construct time-dependent S-brane solutions to the supergravity field equations in various dimensions which (unlike most such geometries) do not contain curvature singularities.
A. Buchel +45 more
core +3 more sources