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Journal articles on the topic 'Electromagnetic fields'

To see the other types of publications on this topic, follow the link: Electromagnetic fields.

Author: Grafiati

Published: 4 June 2021

Last updated: 29 July 2024

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1

Shepard, R. B., S. B. Digerness, W. L. Holman, G. N. Kay, C. P. Murrah, E. F. Ferguson, and A. D. Pacifico. "ELECTROMAGNETIC FIELDS." Southern Medical Journal 89, Supplement (October 1996): S125. http://dx.doi.org/10.1097/00007611-199610001-00263.

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2

Finkelstein, L. "Electromagnetic Fields." Physics Bulletin 37, no. 11 (November 1986): 466. http://dx.doi.org/10.1088/0031-9112/37/11/040.

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3

Ishida, Masashi, Mikihiro Fujioka, Kenji A. Takahashi, Yuji Arai, and Toshikazu Kubo. "Electromagnetic Fields." Clinical Orthopaedics and Related Research 466, no. 5 (March 19, 2008): 1068–73. http://dx.doi.org/10.1007/s11999-008-0182-y.

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4

Hervik, Sigbjørn, Marcello Ortaggio, and Vojtěch Pravda. "Universal electromagnetic fields." Classical and Quantum Gravity 35, no. 17 (August 1, 2018): 175017. http://dx.doi.org/10.1088/1361-6382/aad13d.

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5

Moscato, U., A. G. de Belvis, G. Vaudo, D. Canonaco, M. Fiumanä, and G. Capelli. "RADIOFREQUENCY ELECTROMAGNETIC FIELDS." Epidemiology 9, Supplement (July 1998): S111. http://dx.doi.org/10.1097/00001648-199807001-00360.

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6

Jaffa, Kent C., Han Kim, and Tim E. Aldrich. "Measuring Electromagnetic Fields." Epidemiology 11, no. 3 (May 2000): 359–60. http://dx.doi.org/10.1097/00001648-200005000-00026.

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7

Pendry, J. B. "Controlling Electromagnetic Fields." Science 312, no. 5781 (June 23, 2006): 1780–82. http://dx.doi.org/10.1126/science.1125907.

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8

Low, JL. "Pulsed Electromagnetic Fields." Physiotherapy 89, no. 1 (January 2003): 71. http://dx.doi.org/10.1016/s0031-9406(05)60689-x.

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9

Barker, AT, and RA Dixon. "Pulsed electromagnetic fields." Journal of Bone and Joint Surgery. British volume 73-B, no. 2 (March 1991): 352–54. http://dx.doi.org/10.1302/0301-620x.73b2.2005179.

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10

Sharrard, WJ. "Pulsed electromagnetic fields." Journal of Bone and Joint Surgery. British volume 74-B, no. 4 (July 1992): 630. http://dx.doi.org/10.1302/0301-620x.74b4.1624534.

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11

Cariñena, José F., José A. González, Mariano A. del Olmo, and Mariano Santander. "Invariant Electromagnetic Fields." Fortschritte der Physik/Progress of Physics 38, no. 9 (1990): 681–715. http://dx.doi.org/10.1002/prop.2190380903.

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12

MEDVEĎ, Dušan, and Ondrej HIRKA. "INVESTIGATION OF ELECTROMAGNETIC FIELDS IN RESIDENTIAL AREAS." Acta Electrotechnica et Informatica 17, no. 3 (September 2017): 48–52. http://dx.doi.org/10.15546/aeei-2017-0026.

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13

Viktorov, V. A. "METHODOLOGY FOR CALCULATING ELECTROMAGNETIC FIELDS GENERATED BY AN AUTOMATED WORKPLACE OF AN OBJECT OF INFORMATIZATION." RADIO COMMUNICATION TECHNOLOGY, no. 46 (September 30, 2020): 30–44. http://dx.doi.org/10.33286/2075-8693-2020-46-30-44.

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A methodology for calculating electromagnetic fields generated by an automated workstation of an object of informatization has been developed. Using the presented methodology, it becomes possible to form a complete scheme of electromagnetic radia-tion of the space under study. Based on the output of the calculation of electromagnet-ic fields, the permissible time spent by the operator at each point of his workplace is calculated. For the first time, electromagnetic radiation sources are modeled by a com-bination of elementary electric dipoles powered by various harmonic components. The reliability of the illustrated methodology was carried out by comparing the calculated values of the parameters of electromagnetic fields with the measured values of the lev-els at given frequencies.

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14

Tokumaru, Shinobu. "Electromagnetic parameters and structure of electromagnetic fields." Electronics and Communications in Japan (Part II: Electronics) 82, no. 9 (September 1999): 1–10. http://dx.doi.org/10.1002/(sici)1520-6432(199909)82:9<1::aid-ecjb1>3.0.co;2-8.

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15

Doria, R. M., and I. Soares. "Four Bosons EM Conservation Laws." JOURNAL OF ADVANCES IN PHYSICS 19 (May 27, 2021): 40–92. http://dx.doi.org/10.24297/jap.v19i.9024.

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Electromagnetism is expressed from two basic postulates. They are light invarianceand charge conservation. At this work one extends the Maxwell scenario from macroscopic to microscopic electromagnetism by following the elementary particles electric charge microscopic behavior. It yields a triune electric charge interrelationship. Three charges {+, 0, −} be exchanged through a vector bosons quadruplet. It is called Four Bosons Electromagnetism. A systemic EM physics appears to be understood. Maxwell photon is not enough for describing the microscopic electric charge physics. An extension for electromagnetic energy is obtained. The fields quadruplet {Aµ, Uµ, Vµ±} are the porters of electromagnetic energy. They are the usual photon Aµ, massive photon Uµ and two charged photons Vµ±, A new understanding on EM phenomena has to be considered. A set determinism based on granular and collective fields is developed. A space-time evolution associated to a whole.Conservation laws are studied. The EM phenomena is enlarged to three charges interchanges to {+, 0, −}. Two novelties appear. New features on nonlinear fields acting as own sources and on electric charge physics. Properties as conservation, conduction, transmission, interaction are extended to a systemic electromagnetism. A whole conservation law for electric charge emerges from three charges interwoven. Electric charge has a systemic behavior. Although there is no Coulomb law for zero electric charge, the Four Bosons Electromagnetism contains an EM energy which provides a neutral electromagnetism. Particles with zero charge {Aµ, Uµ} are carrying EM energy. Another consideration is on EM energy being transported by four nonlinear fields. A new physicality appears. The abelian nonlinearity generates fields charges. Fields are working as own sources through mass terms, trilinear and quadrilinear interactions, spin couplings. Consequently the photon is more than being a consequence from electric charge oscillations. It is able to generate its own charge. Introduce the meaning of photonics.Thus, electric charge is no more the isolate electromagnetic source. There are another conservation laws. Fields sources appear through corresponding equations of motion, Bianchi identities, energy-momentum, Noether laws and angular momentum conservation laws. They move EM to a fields charges dependence. Together with electric charge they carrythe electromagnetic flux. Supporting the Ahranov-Bohm experiment of potential fields as primitive entities.

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16

VV, Aksenov. "Non-force electromagnetic fields." International Journal of Physics Research and Applications 4, no. 1 (March 9, 2020): 020–45. http://dx.doi.org/10.29328/journal.ijpra.1001021.

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17

Piszczek, Piotr, Karolina Wójcik-Piotrowicz, Krzysztof Gil, and Jolanta Kaszuba-Zwoińska. "Immunity and electromagnetic fields." Environmental Research 200 (September 2021): 111505. http://dx.doi.org/10.1016/j.envres.2021.111505.

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18

Fisher, Robert B. "Electromagnetic fields and health." Power Engineering Journal 7, no. 5 (1993): 216. http://dx.doi.org/10.1049/pe:19930055.

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19

TARASOV, VASILY E. "ELECTROMAGNETIC FIELDS ON FRACTALS." Modern Physics Letters A 21, no. 20 (June 28, 2006): 1587–600. http://dx.doi.org/10.1142/s0217732306020974.

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Fractals are measurable metric sets with non-integer Hausdorff dimensions. If electric and magnetic fields are defined on fractal and do not exist outside of fractal in Euclidean space, then we can use the fractional generalization of the integral Maxwell equations. The fractional integrals are considered as approximations of integrals on fractals. We prove that fractal can be described as a specific medium.

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20

Liu, Mario. "Electromagnetic fields in ferrofluids." Physical Review E 59, no. 3 (March 1, 1999): 3669–75. http://dx.doi.org/10.1103/physreve.59.3669.

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21

Sandström, Monica. "Electromagnetic Fields in Offices." International Journal of Occupational Safety and Ergonomics 12, no. 2 (January 2006): 137–47. http://dx.doi.org/10.1080/10803548.2006.11076677.

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22

Cohen‐Tannoudji, Claude, and Ugo Fano. "Atoms in Electromagnetic Fields." Physics Today 48, no. 11 (November 1995): 86–87. http://dx.doi.org/10.1063/1.2808261.

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23

Hacyan, S. "Non-null electromagnetic fields." Physica Scripta 94, no. 11 (August 14, 2019): 115502. http://dx.doi.org/10.1088/1402-4896/ab1952.

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24

Jauchem. "Electromagnetic fields and cancer." Science 250, no. 4982 (November 9, 1990): 739. http://dx.doi.org/10.1126/science.1700478.

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25

Bailey, William H. "Epidemiology of Electromagnetic Fields." Health Physics 109, no. 6 (December 2015): 606–7. http://dx.doi.org/10.1097/hp.0000000000000313.

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26

Stuchly, M. A. "Electromagnetic fields and health." IEEE Potentials 12, no. 2 (April 1993): 34–39. http://dx.doi.org/10.1109/45.283813.

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27

Lynden-Bell, D. "Carter separable electromagnetic fields." Monthly Notices of the Royal Astronomical Society 312, no. 2 (February 21, 2000): 301–15. http://dx.doi.org/10.1046/j.1365-8711.2000.03129.x.

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28

HORA, HEINRICH. "Atoms in Electromagnetic Fields." Laser and Particle Beams 24, no. 1 (March 2006): 199. http://dx.doi.org/10.1017/s0263034606000267.

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Atoms in Electromagnetic Fields, Second Edition, by C. Cohen-Tannoudji, World Scientific Publishing Company, Singapore, 752 pages, US $128.00, ISBN: 9812389423The publisher has the merit to convince the author first against his reluctance to prepare this compendium of reprints but it is a rare case where this was so successful that a second extended edition was necessary. It contains the most outstanding work which led to the Nobel Price for the author who started from the work of one of the pioneers on spectroscopy for the laser, Nobel Lauerate Alfred Kastler.

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29

Trock, David H. "ELECTROMAGNETIC FIELDS AND MAGNETS." Rheumatic Disease Clinics of North America 26, no. 1 (February 2000): 51–62. http://dx.doi.org/10.1016/s0889-857x(05)70119-8.

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30

Kumar, Kaushlendra, and Olaf Lechtenfeld. "On rational electromagnetic fields." Physics Letters A 384, no. 23 (August 2020): 126445. http://dx.doi.org/10.1016/j.physleta.2020.126445.

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31

McGregor, Alan. "WHO investigates electromagnetic fields." Lancet 347, no. 9001 (March 1996): 605. http://dx.doi.org/10.1016/s0140-6736(96)91293-3.

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32

Hillion, P., and S. Quinnez. "Proca and electromagnetic fields." International Journal of Theoretical Physics 25, no. 7 (July 1986): 727–36. http://dx.doi.org/10.1007/bf00668718.

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33

Reizenstein, Peter. "Leukemia and electromagnetic fields." Leukemia Research 17, no. 3 (March 1993): 197–98. http://dx.doi.org/10.1016/0145-2126(93)90001-2.

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34

Chubykalo, Andrew E., Augusto Espinoza, and B. P. Kosyakov. "Self-dual electromagnetic fields." American Journal of Physics 78, no. 8 (August 2010): 858–61. http://dx.doi.org/10.1119/1.3379299.

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35

Markov, M. "Electromagnetic fields and biomembranes." Bioelectrochemistry and Bioenergetics 17, no. 3 (November 1987): 323–24. http://dx.doi.org/10.1016/0302-4598(87)80042-9.

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36

Singh, Neeta, R. Mathur, and J. Behari. "Electromagnetic Fields and Cancer." IETE Technical Review 14, no. 3 (May 1997): 149–51. http://dx.doi.org/10.1080/02564602.1997.11416664.

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37

Vargas-Rodríguez, H., A. Gallegos, M. A. Muñiz-Torres, H. C. Rosu, and P. J. Domínguez. "Relativistic Rotating Electromagnetic Fields." Advances in High Energy Physics 2020 (December 29, 2020): 1–17. http://dx.doi.org/10.1155/2020/9084046.

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In this work, we consider axially symmetric stationary electromagnetic fields in the framework of special relativity. These fields have an angular momentum density in the reference frame at rest with respect to the axis of symmetry; their Poynting vector form closed integral lines around the symmetry axis. In order to describe the state of motion of the electromagnetic field, two sets of observers are introduced: the inertial set, whose members are at rest with the symmetry axis; and the noninertial set, whose members are rotating around the symmetry axis. The rotating observers measure no Poynting vector, and they are considered as comoving with the electromagnetic field. Using explicit calculations in the covariant 3 + 1 splitting formalism, the velocity field of the rotating observers is determined and interpreted as that of the electromagnetic field. The considerations of the rotating observers split in two cases, for pure fields and impure fields, respectively. Moreover, in each case, each family of rotating observers splits in two subcases, due to regions where the electromagnetic field rotates with the speed of light. These regions are generalizations of the light cylinders found around magnetized neutron stars. In both cases, we give the explicit expressions for the corresponding velocity fields. Several examples of relevance in astrophysics and cosmology are presented, such as the rotating point magnetic dipoles and a superposition of a Coulomb electric field with the field of a point magnetic dipole.

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38

Sherwin, B. D., and D. Lynden-Bell. "Electromagnetic fields in jets." Monthly Notices of the Royal Astronomical Society 378, no. 2 (June 21, 2007): 409–15. http://dx.doi.org/10.1111/j.1365-2966.2007.11791.x.

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39

Weisburger, JohnH, MichelP Coleman, Elisabeth Cardis, and Harri Vainio. "Cancer and electromagnetic fields." Lancet 336, no. 8725 (November 1990): 1259. http://dx.doi.org/10.1016/0140-6736(90)92880-q.

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40

Goodman, Reba, Yuri Chizmadzhev, and Ann Shirley-Henderson. "Electromagnetic fields and cells." Journal of Cellular Biochemistry 51, no. 4 (April 1, 1993): 436–41. http://dx.doi.org/10.1002/jcb.2400510408.

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41

Wiart, Joe, Soichi Watanabe, Tongning Wu, Wout Joseph, and Kyong A. Lee. "Electromagnetic fields (EMF) exposure." Annals of Telecommunications 74, no. 1-2 (January 14, 2019): 1–3. http://dx.doi.org/10.1007/s12243-018-0698-4.

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42

Robert, Elisabeth. "Teratogen update: Electromagnetic fields." Teratology 54, no. 6 (December 1996): 305–13. http://dx.doi.org/10.1002/(sici)1096-9926(199612)54:6<305::aid-tera6>3.0.co;2-x.

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43

Zhang, Pi Cui, Wei He, Liu Ling Wang, and Li Feng Ma. "Analysis on Lightning Electromagnetic Fields." Applied Mechanics and Materials 401-403 (September 2013): 350–53. http://dx.doi.org/10.4028/www.scientific.net/amm.401-403.350.

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t is generally needed to know precisely spatial distribution of lightning electromagnetic fields in the lightning protection measurements. Therefore, the research on the lightning electromagnetic field is of practical significance. In this paper, the Maxwell equations were used to calculate and analyze the spatial distribution of lightning electromagnetic fields surrounding lightning current. And the expressions of lightning current electromagnetic fields were deduced under the assumption that the earth was under the condition of perfect conductor. The spatial distributions of the components of lightning electromagnetic fields have been plotted by Matlab. The results would provide fundamental theory for the research of lightning electromagnetic field and lightning protection measurements.

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44

Berdnyk, Serhii, Andrey Gomozov, Dmitriy Gretskih, Viktor Kartich, and Mikhail Nesterenko. "Approximate boundary conditions for electromagnetic fields in electrodmagnetics." RADIOELECTRONIC AND COMPUTER SYSTEMS, no. 3 (October 4, 2022): 141–60. http://dx.doi.org/10.32620/reks.2022.3.11.

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The results of an analytical review of literature sources on the use of approximate boundary conditions for electromagnetic fields of impedance type in solving boundary value problems of electromagnetism for more than 80 recent years are presented. During this period, the impedance approach was generalized to various electrodynamic problems, in which its use made it possible to significantly expand the limits of mathematical modeling, which adequately considers the physical properties of real boundary surfaces. More than eighty years have passed since the publication of approximate boundary conditions for electromagnetic fields. The meaning and value of these conditions lies in the fact that they allow solving diffraction problems about fields outside well-conducting bodies without considering the fields inside them, which greatly simplifies the solution. Since then, numerous publications have been devoted to the application of impedance boundary conditions, the main of which (according to the authors) are presented in this paper. Particular attention is paid to the characteristics of electrically thin impedance vibrators and film-type surface structures as a personal contribution of the authors to the theory of impedance boundary conditions in electromagnetism. The subject of research in this article is the analysis of the limits and conditions for the correct application of impedance boundary conditions. The goal is to systematize the results of using the concept of approximate impedance boundary conditions for electromagnetic fields in problems of electrodynamics based on an analytical review of literature sources. The following results were obtained. The types of metal-dielectric structures are presented, for which methods of theoretical determination of the values of surface impedances for film-type structures are currently known, which are the most promising for creating technological control elements on their basis in centimeter and millimeter wavelength devices. Conclusions. The materials of this paper do not pretend to be a complete reference book covering all the results and aspects of the development of the concept of approximate impedance type boundary conditions in problems of electromagnetism over the past decades. Simultaneously, the authors hope that the information presented in this paper will be useful to specialists in the field of theoretical and applied electrodynamics, as well as graduate students, young scientists and students who are just mastering radiophysics and radio engineering specialties.

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45

Li, Gun, and Xiao Feng Pang. "Biological Effects of Environmental Electromagnetic Fields." Advanced Materials Research 183-185 (January 2011): 532–36. http://dx.doi.org/10.4028/www.scientific.net/amr.183-185.532.

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Each of us are exposed to the environmental electromagnetic fields, such as the geomagnetic field, electromagnetic field from power line, and antenna radiation etc. all the time, when the biological tissue exposure in the electromagnetic fields may lead some certain effects, and many effects are studied during the past few years, most of these studies concentrated on negative effects of electromagnetic fields. It is necessary to explore effects of these environmental electromagnetic fields on human body comprehensively, some effects of environmental electromagnetic fields are studied theoretically in the following paper, and attenuate characteristics of several environmental electromagnetic fields propagate in human body is discussed. The theoretical results expressed the penetration depth of several environmental electromagnetic fields, and the possible effects of long term effects are analyzed.

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46

Mohammed Gh. Farhan, Jihad D. Mahal, and Awaz B. Mohammed. "Evaluate the efficiency of treatment by using electromagnetic field in reducing bacterial contamination in wells water." Tikrit Journal of Pure Science 22, no. 11 (February 3, 2023): 28–33. http://dx.doi.org/10.25130/tjps.v22i11.910.

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This study was conducted on nine wells water within Kirkuk city for the period 1st July 2015 until 13th June 2016 to assess the electromagnetic field's effectiveness in groundwater purification, where the study focused on the design apparatus with different electromagnetic fields accomplished by exposing the water to electromagnetic fields while the water is passing through the device. Electromagnetic water treatment process consists of two phases , the first by using different electromagnetic fields 1.4,1.7,1.9 Tesla with the stability of the water passage time 20 minutes through electromagnetic field and the second phase is consists of fixed electromagnetic field intensity 1.9 Tesla with change water retention time 5, 10, 20 minutes during the electromagnetic field. Study showed the effect of electromagnetic treatment on bacterial pollution indicators (total number of aerobic bacteria and total coliform bacteria) the number of bacteria colonies decreased at a rate of 90% at a field intensity 1.9 Tesla and to 93% at a retention time 20 minutes, as the coliform bacteria decreased at a rate of 94% when field intensity 1.9 Tesla ,and [98thvd retention time 20 minutes

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47

Gradoni, Gabriele, Johannes Russer, Mohd Hafiz Baharuddin, Michael Haider, Peter Russer, Christopher Smartt, Stephen C. Creagh, Gregor Tanner, and David W. P. Thomas. "Stochastic electromagnetic field propagation— measurement and modelling." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 376, no. 2134 (October 29, 2018): 20170455. http://dx.doi.org/10.1098/rsta.2017.0455.

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This paper reviews recent progress in the measurement and modelling of stochastic electromagnetic fields, focusing on propagation approaches based on Wigner functions and the method of moments technique. The respective propagation methods are exemplified by application to measurements of electromagnetic emissions from a stirred, cavity-backed aperture. We discuss early elements of statistical electromagnetics in Heaviside's papers, driven mainly by an analogy of electromagnetic wave propagation with heat transfer. These ideas include concepts of momentum and directionality in the realm of propagation through confined media with irregular boundaries. We then review and extend concepts using Wigner functions to propagate the statistical properties of electromagnetic fields. We discuss in particular how to include polarization in this formalism leading to a Wigner tensor formulation and a relation to an averaged Poynting vector. This article is part of the theme issue ‘Celebrating 125 years of Oliver Heaviside's ‘Electromagnetic Theory’’.

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48

Xiong, Guang Jie, and Ling Li. "Finite Element Analysis of Electromagnetic Device in Magnetorheological Fluid Brake." Applied Mechanics and Materials 268-270 (December 2012): 1448–52. http://dx.doi.org/10.4028/www.scientific.net/amm.268-270.1448.

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Magnetorheological fluid (MRF) Brake is a newly-developed intelligent brake in which traditional mechanical brake friction pairs are replaced by MRF materials and the electromagnetism devices are very important components. The controllable magnetic fields are generated by electromagnetism devices which can make MRF materials create related braking torque to control the braking performance of the MRF Brake. In this paper, the electromagnetism device consists of several coil sets which can generate electromagnetic fields for MRF Brake. By using finite element analysis, the magnetic fields generated by electromagnetism devices are compared analytically under the different conditions, and then the optimum parameters are obtained such as coil arrangements, excitation currents and air gap distances and etc. All these evidences are helpful to design the structure of electromagnetism devices in MRF Brake.

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49

Yurtkuran, Alkin. "An Improved Electromagnetic Field Optimization for the Global Optimization Problems." Computational Intelligence and Neuroscience 2019 (May 23, 2019): 1–20. http://dx.doi.org/10.1155/2019/6759106.

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Electromagnetic field optimization (EFO) is a relatively new physics-inspired population-based metaheuristic algorithm, which simulates the behavior of electromagnets with different polarities and takes advantage of a nature-inspired ratio, known as the golden ratio. In EFO, the population consists of electromagnetic particles made of electromagnets corresponding to variables of an optimization problem and is divided into three fields: positive, negative, and neutral. In each iteration, a new electromagnetic particle is generated based on the attraction-repulsion forces among these electromagnetic fields, where the repulsion force helps particle to avoid the local optimal point, and the attraction force leads to find global optimal. This paper introduces an improved version of the EFO called improved electromagnetic field optimization (iEFO). Distinct from the EFO, the iEFO has two novel modifications: new solution generation function for the electromagnets and adaptive control of algorithmic parameters. In addition to these major improvements, the boundary control and randomization procedures for the newly generated electromagnets are modified. In the computational studies, the performance of the proposed iEFO is tested against original EFO, existing physics-inspired algorithms, and state-of-the-art meta-heuristic algorithms as artificial bee colony algorithm, particle swarm optimization, and differential evolution. Obtained results are verified with statistical testing, and results reveal that proposed iEFO outperforms the EFO and other considered competitor algorithms by providing better results.

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50

Meza, Paola, Cristian Quinzacara, Almeira Sampson, and Mauricio Valenzuela. "Electromagnetically and gravitationally stealth fields." Journal of Cosmology and Astroparticle Physics 2023, no. 03 (March 1, 2023): 032. http://dx.doi.org/10.1088/1475-7516/2023/03/032.

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Abstract We construct a generic class of models for complex scalar fields — minimally coupled to gravity and electromagnetism — with the property that their energy-momentum tensor and the electric current vanish for certain massive configurations. These are electromagnetically and gravitationally stealth fields. We shall see that the latter configurations can affect, in addition, the strength of the gravity-matter and electromagnetic-matter couplings of other (non-stealth) modes present in the system, which turn out to be equivalent to the re-scaling the electric charge and the Newton constant (with a stealth-mass depending factor).

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