The meaning of ELECTROMAGNETIC WAVE is one of the waves that are propagated by simultaneous periodic variations of electric and magnetic field intensity and that include radio waves, infrared, visible light, ultraviolet, X-rays, and gamma rays.
Wave form and spectral distribution of the electromagnetic field of lightning currents - Volland - 1981 () Citation Context ... written as | | ⁄ (11) Where, ω is the frequency, in rad s -1 , at which power is radiated. By including the effect of perfectly conducting ground the ...
In a resonant wave guide model of lightning currents, two impulse type standing waves can exist: aperiodic waves of the Bruce-Golde form (type 1), and damped oscillations (type 2). The electromagnetic waves generated by these two types of lightning currents are calculated for various distances...
美 英 na.电磁波 网络短波音像 复数:electromagnetic waves 英汉 英英 网络释义 na. 1. 电磁波 例句 释义: 全部,电磁波,短波音像
Electromagnetic Wave Scattering From Layered Structures With an Arbitrary Number of Rough Interfaces. A closed-form first-order perturbative solution to the problem of electromagnetic scattering from a layered structure with an arbitrary number of rough int... Imperatore,Pasquale,Iodice,... - 《IEEE ...
- 《Microwave & Guided Wave Letters IEEE》 被引量: 266发表: 1995年 Emission of Submillimeter Electromagnetic Waves by Coherent Phonons We report on the first observation of the emission of electromagnetic radiation from coherent lattice vibrations in a semiconductor. Coherent optical phono... T.,...
fthispublicationmaybereproducedorutilizedinanyform orbyanymeans,electronic。rmechanical,includingphot。c。pyingandmicrofilm,with。utpermissioninwritingfrom eitherIEC。rIEC’smemberNationalCommitteeinthec。untry。ftherequester.Ify。uhaveanyquesti。nsaboutIEC copyrightorhaveanenquiryaboutobtainingadditionalrightsto...
radiatedequallyinalldirectionsfromapointsource,asphericalwavefrontwouldresult.Suchasourceissaidtobeisotropic. Awavefrontisaplane,whichjoinsallpointsofequalphase. Wavefront Note Inthisinstancethewavefrontisspherical,butatlargedistancesfromthesourcethewavefrontwillbecomenearlyflat. Thepowerdensity(inwattspersquare...
Electromagnetic radiation is a transverse wave consisting of oscillating electric and magnetic fields. In a vacuum, the waves always travel at 300,000 km/s (671 million mph), but their wavelengths vary enormously. Gamma rays have tiny wavelengths, often smaller than an atom, while radio waves ...
Apart from the metal plate forming method based on the underwater shock wave generated by an underwater explosion, high-voltage discharge and electromagnetic forming methods that employ electromagnetic induction or Lorentz forces have also been developed. In this chapter, the explosive forming methods ...