Results 21 to 30 of about 309,932 (262)
Measuring Low-Order Photometric Parameters of Light Fields: Methods Exploration and Simulations
IEEE Access, 2020 Low-order photometric parameters of light fields are important aspects determining lighting qualities but difficult to be measured. In this article, we did a systematical investigation into the performance of a cubic meter and a tetrahedron meter as well
Ling Xia +4 more
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Direct observation of exchange anisotropy in the helimagnetic insulator Cu_{2}OSeO_{3}
Physical Review Research, 2023 The helical magnetic structures of cubic chiral systems are well explained by the competition among Heisenberg exchange, Dzyaloshinskii-Moriya interaction, cubic anisotropy, and anisotropic exchange interaction (AEI). Recently, the role of the latter has
Priya R. Baral +6 more
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Jordan meets Freudenthal. A black hole exceptional story
SciPost Physics Proceedings, 2023 Within the extremal black hole attractors arising in ungauged $\mathcal{N}≥ 2$-extended Maxwell Einstein supergravity theories in $3+1$ space-time dimensions, we provide an overview of the stratification of the electric-magnetic charge representation ...
Alessio Marrani
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3D Reconstruction Using Cubic Bezier Spline Curves and Active Contours (Case Study) [PDF]
Iranian Journal of Medical Physics, 2012 Introduction 3D reconstruction of an object from its 2D cross-sections (slices) has many applications in different fields of sciences such as medical physics and biomedical engineering.
Atefeh Foroozandeh +4 more
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On a gauge-invariant deformation of a classical gauge-invariant theory
Journal of High Energy Physics, 2021 We consider a general gauge theory with independent generators and study the problem of gauge-invariant deformation of initial gauge-invariant classical action.
I. L. Buchbinder, P. M. Lavrov
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Three-axis electrical induction sensor of electric field strength in form of three mutually perpendicular disks [PDF]
Омский научный вестник, 2020 Measuring the parameters of electric fields affecting technical and biological objects is impossible without the use of electric field strength sensors. Accurate measurement and control of electric field strength levels is challenging.
S. V. Biryukov
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Journal of Differential Equations, 2018 In this paper, bi-center problem and bifurcation of limit cycles from nilpotent singular points in Z 2 -equivariant cubic vector fields are studied.
Feng Li, Yirong Liu, Yuanyuan Liu, P. Yu
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Parameterization of magnetic vector potentials and fields for efficient multislice calculations of elastic electron scattering [PDF]
Acta Crystallographica Section A: Foundations and Advances, 2021 A tabulation is presented of parameterized magnetic fields computed from atomic density functional theory calculations that allows for the efficient computation of approximate magnetic vector fields in materials using only structural and magnetic moment ...
Keenan Lyon, J. Rusz
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Vector fields, RG flows and emergent gauge symmetry
Journal of High Energy Physics, 2021 We consider the most general perturbatively renormalizable theory of vector fields in four dimensions with a global SU(N) symmetry and massless couplings. The Lagrangian contains 1 quadratic, 2 cubic and 4 quartic couplings. The RG flow among this set of
Daniel Nogradi
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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
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