Results 71 to 80 of about 15,517,805 (287)
On a structural observation in generalized electromagnetic theory
Journal of Mathematical Analysis and Applications, 1985 Maxwell's equations for electromagnetic fields can be generalized using differential forms on oriented Riemannian manifolds. This approach leads to a treatment of the initial value problem that includes boundary condition necessary to produce the correct static behaviour. Also included are the Dirichlet and Neumann problems in linearized acoustics.
openaire +2 more sources
Electromagnetic modeling and simulation
, 2014 Electromagnetic modeling is essential to the design and modeling of antenna, radar, satellite, medical imaging, and other applications. In Electromagnetic Modeling and Simulation, author Levent Sevgi explains techniques for solving real-time complex ...
Sevgi, Levent
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Limits to the Hall Effect and Other Nonreciprocal Effects in Three‐Dimensional Metamaterials
Advanced Materials, EarlyView.Comprehensive and fundamental bounds on nonreciprocal effects in three‐dimensional metamaterials are derived. They reveal that the effective Hall mobility cannot exceed the largest constituent mobility, that, under certain conditions, the Verdet constant cannot be enhanced, and that, for constituents with Hall coefficients of the same sign, the largest
Christian Kern, Graeme W. Milton
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n‐Type Polymer Radio Frequency Rectifiers Operating at 18.5 GHz
Advanced Materials, EarlyView.Combining an n‐doped polymer semiconductor with wafer‐scale asymmetric planar electrodes featuring work function‐engineered contacts yields radio‐frequency diodes and rectifying circuits operating at up to 18.5 GHz. The devices combine scalable manufacturing with an operating frequency previously unattainable by large‐area organic electronics ...
Lazaros Panagiotidis +19 more
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Analyzing electromagnetic structures with curved boundaries on Cartesian FDTD meshes [PDF]
, 1998 In this paper, a new finite-difference time-domain (FDTD) algorithm is investigated to analyze electromagnetic structures with curved boundaries using a Cartesian coordinate system. The new algorithm is based on a nonorthogonal FDTD method. However, only
Railton, CJ, Hao, Y
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Why Is the Mechanism Underlying the Chiral‐Induced Selectivity Effect Still Challenging?
Advanced Materials, EarlyView.The chiral‐induced spin selectivity (CISS) effect is observed in many experimental configurations and for different materials. However, there are theoretical challenges in attempting to explain those results. A qualitative framework for explaining all the results is presented.
Ron Naaman, Yossi Paltiel
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The Eclipse to Confirm the General Theory of Relativity [PDF]
, 2015 One of the milestones of the science of light commemorated during this International Year of Light and Light-based Technologies is “the embedding of light in cosmology through general relativity in 1915,” that is, the celebration of the centenary of ...
Beléndez, Augusto +1 more
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Emergent Abelian Gauge Fields from Noncommutative Gravity
Symmetry, Integrability and Geometry: Methods and Applications, 2010 We construct exact solutions to noncommutative gravity following the formulation of Chamseddine and show that they are in general accompanied by Abelian gauge fields which are first order in the noncommutative scale.
Allen Stern
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Advanced Materials, EarlyView.The engineering of colloidal nanocrystals with complex compositions has emerged as a highly active area of research within nanomaterials science. This review covers key aspects of colloidal solid‐solution nanocrystal formation using pulsed laser irradiation.
Marina T. Candela +4 more
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About the Absolute Analogy Between Electromagnetism and Gravitomagnetism
Reports in Advances of Physical SciencesThis study proposes a new formulation of gravitational field dynamics using Maxwell-like equations, thus offering an alternative to Einstein’s general theory of relativity.
Borros Arneth
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