Results 61 to 70 of about 260,869 (174)

Photorelaxation and Photorepair Processes in Nucleic and Amino Acid Derivatives

open access: yesMolecules, 2017
Understanding the fundamental interaction between electromagnetic radiation and matter is essential for a large number of phenomena, with significance to civilization.[...]
Carlos E. Crespo-Hernández
doaj   +1 more source

Quantum theory of the third-order nonlinear electrodynamic effects in graphene

open access: yes, 2016
The linear energy dispersion of graphene electrons leads to a strongly nonlinear electromagnetic response of this material. We develop a general quantum theory of the third-order nonlinear local dynamic conductivity of graphene $\sigma_{\alpha\beta\gamma\
Mikhailov, S. A.
core   +1 more source

Earthquake Prediction: Seismo‐Electromagnetic Phenomena

open access: yesEos, Transactions American Geophysical Union, 1996
Earthquake Prediction: Seismo‐Electromagnetic Phenomena is a review of research on electromagnetic emissions (EME) as precursors to earthquakes. The authors state in the introduction that the book is primarily based on their own work, so there is heavy emphasis on the Russian literature.
openaire   +1 more source

Group velocity and causality in standard relativistic resistive magnetohydrodynamics

open access: yes, 2011
Group velocity of electromagnetic waves in plasmas derived by standard relativistic resistive MHD (resistive RMHD) equations is superluminal. If we assume that the group velocity represents the propagation velocity of a signal, we have to worry about the
J. D. Jackson   +4 more
core   +1 more source

Electromagnetic Phenomena as the Principles of Material Nondestructive Evalution

open access: yesAdvances in Electrical and Electronic Engineering, 2004
In the paper the principles and application of nondestructive evalution by both electromagnetic acoustic transducer (EMAT) and the eddy current (EC) methods are introducted. The ultrasonic testing (UT) and the electromagnetic nondestructive testing (NDT)
Klara Capova, Ivo Cap, Dagmar Faktorova
doaj  

Magnetic effects due to earthquakes and underground explosions: a review

open access: yesAnnals of Geophysics, 1997
The physical nature of quasi-static and transient anomalies in the geomagnetic field induced by underground explosions or earthquakes is reviewed. New theoretical results obtained recently and so far little known to general circles of geophysicists are ...
V. A. Pilipenko, V. V. Surkov
doaj   +1 more source

Finite Element Analysis of Electromagnetic Forming Process Applied on Thin Wall Metallic Workpieces [PDF]

open access: yesJournal of Electrical and Electronics Engineering, 2009
The paper deals with numerical simulationsof magnetoforming process applied on thin wallmetallic workpieces. Finite element models aredeveloped using ANSYS Multiphysics as a support.The transient electromagnetic field phenomena aresequentially coupled ...
Sorin Pasca   +2 more
doaj  

Imaging of Electromagnetic NDT Phenomena

open access: yes, 1986
Practical solutions of the defect characterization or NDT inverse problem still continue to be sought by researchers in a variety of industries where the location and sizing of material flaws is important to successful plant operation. The exact type of ‘imaging’ which can be used to characterize defects found by electromagnetic NDT methods depends ...
Lord, W., Udpa, L.
openaire   +3 more sources

Una perspectiva fenomenológica para la enseñanza del Electromagnetismo a nivel introductorio

open access: yesRevista de Enseñanza de la Física, 2010
The student's lack of knowledge about a phenomenology which could be the object of study is one of the problems encountered in teaching the electromagnetic theory.
M. Ayala, F. Malagon, P. Lugo
doaj  

Mathematical models for physical modeling problems of electromagnetic compatibility

open access: yesИзвестия высших учебных заведений: Проблемы энергетики, 2017
The use of physical modeling for electromagnetic compatibility problems with macroscopic objects for which there are difficulties with the production of models and simulators field real is presented in the article.
Z. M. Gizatullin   +2 more
doaj   +1 more source

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