Electromagnetic radiation

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Electromagnetic radiation (often abbreviated E-M radiation or EMR) is a form of energy exhibiting wave-like behavior as it travels through space. EMR has both electric and magnetic field components, which oscillate in phase perpendicular to each other and perpendicular to the direction of energy propagation. (Wikipedia.org)






Conferences related to Electromagnetic radiation

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IGARSS 2015 - 2015 IEEE International Geoscience and Remote Sensing Symposium

The Geoscience and Remote Sensing Society (GRSS) seeks to advance science and technology in geoscience, remote sensing and related fields using conferences, education and other resources. Its fields of interest are the theory, concepts and techniques of science and engineering as they apply to the remote sensing of the earth, oceans, atmosphere, and space, as well as the processing, interpretation and dissemination of this information.

  • IGARSS 2014 - 2014 IEEE International Geoscience and Remote Sensing Symposium

    GRSS seeks to advance science and technology in geoscience, remote sensing and related fields. IGARSS begins with a plenary session and tutorials on the most up-to-date topics. Paper, panel and poster sessions will be scheduled. The exhibit hall features the latest in geoscience instruments, equipment, software, publications, and scientific programs.

  • IGARSS 2013 - 2013 IEEE International Geoscience and Remote Sensing Symposium

    GRSS seeks to advance science and technology in geoscience, remote sensing and related fields. IGARSS begins with a plenary session and tutorials on the most up-to-date topics. Paper, panel and poster sessions will be scheduled. The exhibit hall features the latest in geoscience instruments, equipment, software, publications, and scientific programs.

  • IGARSS 2012 - 2012 IEEE International Geoscience and Remote Sensing Symposium

    Remote Sensing Techniques and Applications.

  • IGARSS 2011 - 2011 IEEE International Geoscience and Remote Sensing Symposium

    To gather world-class scientists, engineers and educators engaged in the fields of geoscience and remote sensing to meet and present their latest activities. Nearly 1900 participants from all over the world attended technical sessions, tutorials, exhibits and social activities at the 2010 event in Hawaii.

  • IGARSS 2010 - 2010 IEEE International Geoscience and Remote Sensing Symposium

    Remote Sensing techniques and applications

  • IGARSS 2009 - 2009 IEEE International Geoscience and Remote Sensing Symposium

    The programme for Cape Town will have several special sessions, in addition to maintaining continuity of traditional GRSS themes. IGARSS 2009 will celebrate ten years of MODIS Earth observations, and five years of the GEOSS programme. On the technical side, special sessions on microsatellites will be organized. In terms of African development, several sessions on applications will address disaster preparedness and response, global change and adaptation, good governance and role of RS in health.


2012 6th International Conference on Bioinformatics and Biomedical Engineering (iCBBE)

Bioinformatics, Computational Biology, Biomedical Engineering


2012 7th IEEE Conference on Industrial Electronics and Applications (ICIEA)

Industrial Informatics, Computational Intelligence, Control and Systems, Energy and Environment, Mechatronics, Power Electronics, Signal Processing, Network and Communication Technologies.


2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering (CMCE 2010)

CMCE 2010 provides numerous opportunities for attendees to increase their knowledge and understanding of all aspects of Computer, Mechatronics, Control and Electronic Engineering. It is also an outstanding chance to meet and network with reliability colleagues from around the world.


2009 EMC Europe Workshop Materials in Applications (EMC EUROPE WORKSHOP)

The scope of this Workshop encompasses progress in the development, analysis and application of materials in EMC applications, innovative use of materials in EMC design to reduce coupling and improve electromagnetic shielding, new measuring and test techniques and methodologies for characterizing new materials and their application in the EMC domain.


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Periodicals related to Electromagnetic radiation

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Antennas and Propagation, IEEE Transactions on

Experimental and theoretical advances in antennas including design and development, and in the propagation of electromagnetic waves including scattering, diffraction and interaction with continuous media; and applications pertinent to antennas and propagation, such as remote sensing, applied optics, and millimeter and submillimeter wave techniques.


Antennas and Wireless Propagation Letters, IEEE

IEEE Antennas and Wireless Propagation Letters (AWP Letters) will be devoted to the rapid electronic publication of short manuscripts in the technical areas of Antennas and Wireless Propagation.


Electromagnetic Compatibility, IEEE Transactions on

EMC standards; measurement technology; undesired sources; cable/grounding; filters/shielding; equipment EMC; systems EMC; antennas and propagation; spectrum utilization; electromagnetic pulses; lightning; radiation hazards; and Walsh functions


Power Delivery, IEEE Transactions on

Research, development, design, application, construction, the installation and operation of apparatus, equipment, structures, materials, and systems for the safe, reliable, and economic delivery and control of electric energy for general industrial, commercial, public, and domestic consumption.



Most published Xplore authors for Electromagnetic radiation

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Xplore Articles related to Electromagnetic radiation

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A method to confirm the power of complex electromagnetic environment simulator

Liu hongyi; Guo wensheng; Feng wei; Ding hao 2008 8th International Symposium on Antennas, Propagation and EM Theory, 2008

With the development of the complexity of the electromagnetic environment in the battlefield, the careful check in the complex electromagnetic environment, which is simulated to the actual battle, is strongly needed for the weapon system. This paper shows the authorpsilas own perspective on the problem of complex electromagnetic environment modeling and how to definite radiation power of simulator.


Analysis of the Effects of Ground Resistivity on the Lightning Radiation Fields Based on FDTD Method

Dongxin Yang; Zhibin Zhao; Xiang Cui; Jiahong Chen 2009 Asia-Pacific Power and Energy Engineering Conference, 2009

In order to investigate effects of ground resistivity on the lightning radiation electromagnetic fields produced by lightning return-stroke, a three- dimensional finite-difference time-domain (FDTD) numerical model is developed with lightning current's transmission line model. Lightning radiation electromagnetic fields at the flat ground are calculated and effects of different soil resistivities on lightning radiation electromagnetic fields are compared, which make a ...


The propagation characteristics of electromagnetic wave generated from partial discharges in power transformer by FDTD simulation

Zhiguo Tang; Chengrong Li; Wei Wang; Hui Wang; Li Wang; Yansheng Ding 2007 Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, 2007

The radiation and propagation of electromagnetic (EM) waves generated from PD caused by the obstruction of main transformer components are studied by FDTD simulation in order to get more information for PD location and diagnosis. Current filament, perfect conductive cylinder and perfect conductive spiral coil models are used to simulate the radiation and the influences of iron-core and transformer coil ...


Electromagnetic flux-compression: experimentation

B. M. Novac; I. R. Smith; D. F. Rankin; Z. Pu; M. Hubbard Digest of Technical Papers. PPC-2003. 14th IEEE International Pulsed Power Conference (IEEE Cat. No.03CH37472), 2003

Electromagnetic flux-compression experiments performed at Loughborough University have produced magnetic flux densities in excess of 300 T with a high degree of reproducibility, using two condenser banks with a total energy of about 80 kJ. In an ongoing research programme, a time rate-of-change of 3.5 10/sup 8/ T/s is being generated, which is more than adequate to move onto the ...


The lightning radiation electromagnetic field data acquisition system based on virtual instrument

Rongjing Cui; Xiang Cui; Zhibin Zhao 2008 8th International Symposium on Antennas, Propagation and EM Theory, 2008

The lightning radiation electromagnetic field data acquisition system is developed based on virtual instrument, which is used to acquire the lightning electromagnetic radiation data. The hardware is mainly composed of GPS receiver, PXI6608 Counter/Timer and PXI5105 Data Acquisition Card made by America NI Company, as well as the lightning detection stations. Virtual instrument is controlled by using the software programmed ...


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Educational Resources on Electromagnetic radiation

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eLearning

A method to confirm the power of complex electromagnetic environment simulator

Liu hongyi; Guo wensheng; Feng wei; Ding hao 2008 8th International Symposium on Antennas, Propagation and EM Theory, 2008

With the development of the complexity of the electromagnetic environment in the battlefield, the careful check in the complex electromagnetic environment, which is simulated to the actual battle, is strongly needed for the weapon system. This paper shows the authorpsilas own perspective on the problem of complex electromagnetic environment modeling and how to definite radiation power of simulator.


Analysis of the Effects of Ground Resistivity on the Lightning Radiation Fields Based on FDTD Method

Dongxin Yang; Zhibin Zhao; Xiang Cui; Jiahong Chen 2009 Asia-Pacific Power and Energy Engineering Conference, 2009

In order to investigate effects of ground resistivity on the lightning radiation electromagnetic fields produced by lightning return-stroke, a three- dimensional finite-difference time-domain (FDTD) numerical model is developed with lightning current's transmission line model. Lightning radiation electromagnetic fields at the flat ground are calculated and effects of different soil resistivities on lightning radiation electromagnetic fields are compared, which make a ...


The propagation characteristics of electromagnetic wave generated from partial discharges in power transformer by FDTD simulation

Zhiguo Tang; Chengrong Li; Wei Wang; Hui Wang; Li Wang; Yansheng Ding 2007 Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, 2007

The radiation and propagation of electromagnetic (EM) waves generated from PD caused by the obstruction of main transformer components are studied by FDTD simulation in order to get more information for PD location and diagnosis. Current filament, perfect conductive cylinder and perfect conductive spiral coil models are used to simulate the radiation and the influences of iron-core and transformer coil ...


Electromagnetic flux-compression: experimentation

B. M. Novac; I. R. Smith; D. F. Rankin; Z. Pu; M. Hubbard Digest of Technical Papers. PPC-2003. 14th IEEE International Pulsed Power Conference (IEEE Cat. No.03CH37472), 2003

Electromagnetic flux-compression experiments performed at Loughborough University have produced magnetic flux densities in excess of 300 T with a high degree of reproducibility, using two condenser banks with a total energy of about 80 kJ. In an ongoing research programme, a time rate-of-change of 3.5 10/sup 8/ T/s is being generated, which is more than adequate to move onto the ...


The lightning radiation electromagnetic field data acquisition system based on virtual instrument

Rongjing Cui; Xiang Cui; Zhibin Zhao 2008 8th International Symposium on Antennas, Propagation and EM Theory, 2008

The lightning radiation electromagnetic field data acquisition system is developed based on virtual instrument, which is used to acquire the lightning electromagnetic radiation data. The hardware is mainly composed of GPS receiver, PXI6608 Counter/Timer and PXI5105 Data Acquisition Card made by America NI Company, as well as the lightning detection stations. Virtual instrument is controlled by using the software programmed ...


More eLearning Resources

IEEE-USA E-Books

  • Electromagnetics and Antenna Theory

    This chapter contains sections titled: 1.1. Introduction, 1.2 Bandwidth, 1.3 Ultrawideband Phased Arrays, 1.4 Wavefront Time Delay, 1.5 Electromagnetic Radiation: Maxwell's Equations, 1.6 Fields from Time-Varying Electric and Magnetic Current Sources, 1.7 Boundary Conditions, 1.8 Wave Equation for Conducting Media, Propagation Parameters, 1.9 Electromagnetic Energy Flow, 1.10 Fields of Short Electric and Magnetic Dipoles, 1.11 Electromagnetic Wave Polarization and Receive Antennas, 1.12 Summary, References

  • Electromagnetic Radiation in Free Space

    This chapter contains sections titled: Scalar and Vector Potentials Solution of Vector Potentials in Free Space Electromagnetic Radiation in Free Space Radiation by Surface Currents and Phased Arrays Notes References Problems

  • Health Effects of Electromagnetic Fields

    It appears that in France, where the bulk of electricity is produced by 59 nuclear reactors without the population going ballistic about the fears of another Chernobyl, both the government and the people have been lately displaying a lot of skittishness about the radiation from cell phones. There were reports that cell phones were to be banned from primary schools and operators were being told to offer handsets that allow only text messages. The next front in this French battle for limiting exposure to electromagnetic radiation is cell phone towers. Both the French government and the cell phone operators are being attacked by numerous local and national groups demanding that cell phone towers be removed from locations close to schools, hospitals, and homes. A Technical Information Statement (TIS) approved by the COMAR membership deals with the topic of electromagnetic hypersensitivity (EHS).

  • Transformation of Fields and Media

    Affine transformation is a linear transformation of spacetime which affects fields, sources, and media. Duality transformation is based on the symmetry of electric and magnetic quantities in the Maxwell equations. By changing symbols of fields and sources the Maxwell equations remain the same in form which leads to corresponding similarity in different electromagnetic problems. An object with a self-dual boundary and certain symmetry in its geometry has no back scattering for an incident plane wave. Thus, such an object appears invisible for the radar. Reciprocity (also called as Lorentz reciprocity) in electromagnetics is related to the question whether it is possible to swap the positions of a transmitter and a receiver without a change in the received signal. Conformal transformation is based on the inversion transformation. In electrical engineering the conformal transformation appears lesser known, an exception being its use in studying certain beam-like forms of electromagnetic radiation (focus-wave modes).

  • Bioelectric and Biomagnetic Measurements

    In bioelectromagnetic functional imaging, bioelectric and biomagnetic fields, produced by the human subject him- or herself, are measured. Thus, no use of external electromagnetic radiation is needed; the signals appear either spontaneously, or they are evoked by suitable stimuli. The associated electric potentials are measured on the body surface using electrodes (e.g., the electroencephalogram, EEG, and the electrocardiogram, ECG). The magnetoencephalogram (MEG) and the magnetocardiogram (MCG) are corresponding magnetic recordings, reflecting the same bioelectric events. As compared with other medical-imaging methods, the bioelectromagnetic measurements do not produce anatomic images, but they can give truly non-invasive, functional data with a time resolution of a millisecond or even better, unattainable by other methods. The spatial distribution of the measured fields is used to locate the source currents. However, the processing of the measured data requires efficient modeling and computing. Bioelectromagnetic instrumentation is used today for both basic research and for clinical applications. The first large multi-channel biomagnetic instruments became commercially available ten years ago. The number of such instruments world-wide has increased to about fifty, the majority of them for brain studies. The number of channels has increased up to about 300. Simultaneous multi-channel bioelectric studies have also become increasingly popular. In the future, the use of high-temperature superconductors may make the biomagnetic instrumentation simpler, smaller, and cheaper.

  • A Systematic Study of Perfectly Matched Absorbers

    In the numerical modeling of electromagnetic radiation and/or scattering problems by finite methods, the computational domain is usually truncated by an artificial boundary on which suitable absorbing boundary conditions (ABCs) are imposed. An alternative approach to mesh truncation, which was introduced by Berenger for finite difference time domain (FDTD) implementation, employs a region which is designed to absorb plane waves whose frequency and incident angle are arbitrary. Since the plane waves are transmitted into the region without any reflection, the region is called a perfectly matched layer (PML). In this chapter, our main objective is to systematically derive the partial differential equations satisfied within the PML media. It is demonstrated that both Maxwellian PMLs (the anisotropic and the bianisotropic PML media) as well as non-Maxwellian PMLs (Berenger PML) can be realized by assuming a field decay behavior within the PML. Causality and reciprocity issues, and their implications in the proper design and operation of perfectly matched absorbers, are also discussed. It is shown that if the constitutive parameters of the PML medium satisfy the Kramers-Kronig relations, the medium is causal and does not exhibit a singular behavior at lower frequencies. This, in turn, enables us to extend the PML concept to the static case. The reciprocity concept is also important in the design of PMLs, since the PML medium occupies a bounded domain in mesh truncation applications. The medium must be reciprocal and, as a consequence, the decay behavior of the waves traveling in the longitudinal direction must be identical to that of the waves reflected from the terminating boundary and traveling in the opposite direction. Some examples of causal/non-causal and reciprocal/non-reciprocal PMLs are given in the work to illustrate these behaviors.

  • The Electrodynamics of Torus Knots

    The electromagnetic radiation and scattering properties of thin knotted wires are considered in this chapter. A special class of knots, called torus knots, are introduced for the purpose of this investigation. The parameterizations available for torus knots are used in conjunction with Maxwell's equations to formulate useful mathematical representations for the fields radiated by these knots. These representations are then used to derive simple closed-form far- field expressions for electrically small torus knots. The derivation of a new Electric Field Integral Equation (EFIE) suitable for analysis of toroidally knotted wires is also outlined in this chapter. It is also demonstrated that the well-known expressions for the electromagnetic fields radiated by a circular loop antenna (canonical unknot) as well as the linear dipole antenna may be obtained as degenerate forms of the more general torus knot field representations. Finally, a moment method technique is applied to model the backscattering from a threefold rotationally symmetric trefoil knot as a function of frequency, polarization, and incidence angle.

  • Vacuum Device Applications

    Vacuum electronic devices produce coherent electromagnetic radiation through the interaction of a beam of electrons with an electromagnetic structure. They are used in a wide variety of defense, scientific, and commercial applications ranging from radar, terrestrial and space-based communications, high energy physics, fusion, industrial processing, and medicine down to the countertop microwave oven. The chapter highlights five of the most common types of vacuum electronic technologies: traveling-wave devices, klystrons, inductive output tubes, crossed-field devices, and gyro-devices. For each class of device, a brief description of the physical principles of operation is provided along with an historical perspective on applications and the evolution of device performance.

  • Electromagnetic Radiation

    This chapter contains sections titled: Sources and Recommended Reading

  • EMC Fundamentals

    This chapter contains sections titled: Fundamental Definitions EMC Concerns for the Design Engineer The Electromagnetic Environment The Need to Comply (A Brief History of EMI) Potential EMI/RFI Emission Levels for Unprotected Products Methods of Noise Coupling Nature of Interference PCBs and Antennas Causes of EMI - System Level Summary for Control of Electromagnetic Radiation References



Standards related to Electromagnetic radiation

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No standards are currently tagged "Electromagnetic radiation"


Jobs related to Electromagnetic radiation

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