Academic literature on the topic 'Electromagnetic ground waves. Radio'

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Journal articles on the topic "Electromagnetic ground waves. Radio"

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Rapoport, Yuriy G., Oleg K. Cheremnykh, Volodymyr V. Koshovy, Mykola O. Melnik, Oleh L. Ivantyshyn, Roman T. Nogach, Yuriy A. Selivanov, et al. "Ground-based acoustic parametric generator impact on the atmosphere and ionosphere in an active experiment." Annales Geophysicae 35, no. 1 (January 5, 2017): 53–70. http://dx.doi.org/10.5194/angeo-35-53-2017.

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Abstract. We develop theoretical basics of active experiments with two beams of acoustic waves, radiated by a ground-based sound generator. These beams are transformed into atmospheric acoustic gravity waves (AGWs), which have parameters that enable them to penetrate to the altitudes of the ionospheric E and F regions where they influence the electron concentration of the ionosphere. Acoustic waves are generated by the ground-based parametric sound generator (PSG) at the two close frequencies. The main idea of the experiment is to design the output parameters of the PSG to build a cascade scheme of nonlinear wave frequency downshift transformations to provide the necessary conditions for their vertical propagation and to enable penetration to ionospheric altitudes. The PSG generates sound waves (SWs) with frequencies f1 = 600 and f2 = 625 Hz and large amplitudes (100–420 m s−1). Each of these waves is modulated with the frequency of 0.016 Hz. The novelty of the proposed analytical–numerical model is due to simultaneous accounting for nonlinearity, diffraction, losses, and dispersion and inclusion of the two-stage transformation (1) of the initial acoustic waves to the acoustic wave with the difference frequency Δf = f2 − f1 in the altitude ranges 0–0.1 km, in the strongly nonlinear regime, and (2) of the acoustic wave with the difference frequency to atmospheric acoustic gravity waves with the modulational frequency in the altitude ranges 0.1–20 km, which then reach the altitudes of the ionospheric E and F regions, in a practically linear regime. AGWs, nonlinearly transformed from the sound waves, launched by the two-frequency ground-based sound generator can increase the transparency of the ionosphere for the electromagnetic waves in HF (MHz) and VLF (kHz) ranges. The developed theoretical model can be used for interpreting an active experiment that includes the PSG impact on the atmosphere–ionosphere system, measurements of electromagnetic and acoustic fields, study of the variations in ionospheric transparency for the radio emissions from galactic radio sources, optical measurements, and the impact on atmospheric aerosols. The proposed approach can be useful for better understanding the mechanism of the acoustic channel of seismo-ionospheric coupling.
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Carcione, José M. "Ground‐penetrating radar: Wave theory and numerical simulation in lossy anisotropic media." GEOPHYSICS 61, no. 6 (November 1996): 1664–77. http://dx.doi.org/10.1190/1.1444085.

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Subsurface georadar is a high‐resolution technique based on the propagation of high‐frequency radio waves. Modeling radio waves in a realistic medium requires the simulation of the complete wavefield and the correct description of the petrophysical properties, such as conductivity and dielectric relaxation. Here, the theory is developed for 2-D transverse magnetic (TM) waves, with a different relaxation function associated to each principal permittivity and conductivity component. In this way, the wave characteristics (e.g., wavefront and attenuation) are anisotropic and have a general frequency dependence. These characteristics are investigated through a plane‐wave analysis that gives the expressions of measurable quantities such as the quality factor and the energy velocity. The numerical solution for arbitrary heterogeneous media is obtained by a grid method that uses a time‐splitting algorithm to circumvent the stiffness of the differential equations. The modeling correctly reproduces the amplitude and the wavefront shape predicted by the plane‐wave analysis for homogeneous media, confirming, in this way, both the theoretical analysis and the numerical algorithm. Finally, the modeling is applied to the evaluation of the electromagnetic response of contaminant pools in a sand aquifer. The results indicate the degree of resolution (radar frequency) necessary to identify the pools and the differences between the anisotropic and isotropic radargrams versus the source‐receiver distance.
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Molchanov, O., E. Fedorov, A. Schekotov, E. Gordeev, V. Chebrov, V. Surkov, A. Rozhnoi, et al. "Lithosphere-atmosphere-ionosphere coupling as governing mechanism for preseismic short-term events in atmosphere and ionosphere." Natural Hazards and Earth System Sciences 4, no. 5/6 (November 22, 2004): 757–67. http://dx.doi.org/10.5194/nhess-4-757-2004.

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Abstract. We present a general concept of mechanisms of preseismic phenomena in the atmosphere and ionosphere. After short review of observational results we conclude: 1. Upward migration of fluid substrate matter (bubble) can lead to ousting of the hot water/gas near the ground surface and cause an earthquake (EQ) itself in the strength-weakened area; 2. Thus, time and place of the bubble appearance could be random values, but EQ, geochemistry anomaly and foreshocks (seismic, SA and ULF electromagnetic ones) are casually connected; 3. Atmospheric perturbation of temperature and density could follow preseismic hot water/gas release resulting in generation of atmospheric gravity waves (AGW) with periods in a range of 6–60min; 4. Seismo-induced AGW could lead to modification of the ionospheric turbulence and to the change of over-horizon radio-wave propagation in the atmosphere, perturbation of LF waves in the lower ionosphere and ULF emission depression at the ground.
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Muhsin, Israa J. "Automated method for buried object detecting using ground penetrating radar (GPR) survey." Iraqi Journal of Physics (IJP) 12, no. 23 (February 18, 2019): 80–89. http://dx.doi.org/10.30723/ijp.v12i23.342.

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Ground Penetrating Radar (GPR) is a nondestructive geophysical technique that uses electromagnetic waves to evaluate subsurface information. A GPR unit emits a short pulse of electromagnetic energy and is able to determine the presence or absence of a target by examining the reflected energy from that pulse. GPR is geophysical approach that use band of the radio spectrum. In this research the function of GPR has been summarized as survey different buried objects such as (Iron, Plastic(PVC), Aluminum) in specified depth about (0.5m) using antenna of 250 MHZ, the response of the each object can be recognized as its shapes, this recognition have been performed using image processing such as filtering. Where different filters like (DC adjustment, triangular FIR, delete mean trace, FIR) have been applied on output image as well as the simulation of the soil and the buried objects layers have been obtained using GPR simulation program.
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Zhbankov, G. A., and N. P. Danilkin. "INTERACTION OF SHORT-WAVE ELECTROMAGNETIC WAVES WITH SMALL-SCALE IONOSPHERIC INHOMOGENEITIES OF THE POLAR IONOSPHERE (part II)." RADIO COMMUNICATION TECHNOLOGY, no. 47 (November 23, 2020): 45–56. http://dx.doi.org/10.33286/2075-8693-2020-47-45-56.

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The results of a comparative analysis of the data of computational and field experiments reflecting the peculiarities of the impact of small-scale inhomogeneities of electron concentration in the Earth's ionosphere on the characteristics of radio wave propagation during vertical ground-based and satellite sounding of the ionosphere are presented. It has been proved that these inhomogeneities are the cause of noticeable distortions of traces in ionograms. The simulation results confirm the possibility of determining the degree of concentration change in a small-scale inhomogeneous structure from experimental data.
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Chen, Li, Jascha A. Lau, Dirk Schwarzer, Jörg Meyer, Varun B. Verma, and Alec M. Wodtke. "The Sommerfeld ground-wave limit for a molecule adsorbed at a surface." Science 363, no. 6423 (December 13, 2018): 158–61. http://dx.doi.org/10.1126/science.aav4278.

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Using a mid-infrared emission spectrometer based on a superconducting nanowire single-photon detector, we observed the dynamics of vibrational energy pooling of carbon monoxide (CO) adsorbed at the surface of a sodium chloride (NaCl) crystal. After exciting a majority of the CO molecules to their first vibrationally excited state (v = 1), we observed infrared emission from states up to v = 27. Kinetic Monte Carlo simulations showed that vibrational energy collects in a few CO molecules at the expense of those up to eight lattice sites away by selective excitation of NaCl’s transverse phonons. The vibrating CO molecules behave like classical oscillating dipoles, losing their energy to NaCl lattice vibrations via the electromagnetic near-field. This is analogous to Sommerfeld’s description of radio transmission along Earth’s surface by ground waves.
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Bi, Wenda, Yonghui Zhao, Cong An, and Shufan Hu. "Clutter Elimination and Random-Noise Denoising of GPR Signals Using an SVD Method Based on the Hankel Matrix in the Local Frequency Domain." Sensors 18, no. 10 (October 12, 2018): 3422. http://dx.doi.org/10.3390/s18103422.

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Ground-penetrating radar (GPR) is a kind of high-frequency electromagnetic detection technology. It is mainly used to locate targets and interfaces in underground structures. In addition to the effective signals reflected from the subsurface objects or interfaces, the GPR signals in field work also include noise and different clutters, such as antenna-coupled waves, ground clutters, and radio-frequency interference, which have similar wavelet spectral characteristics with the target signals. Clutter and noise seriously interfere with the target’s response signal. The singular value decomposition (SVD) filtering method can select appropriate singular values and characteristic components corresponding to the effective signals for signal reconstruction to filter the GPR data. However, the conventional time-domain SVD method introduces fake signals when eliminating direct waves, and does not have good suppression of random noise around non-horizontal phase axes. Here, an SVD method based on the Hankel matrix in the local frequency domain of GPR data is proposed. Different numerical models and real field GPR data were handled using the proposed method. Based on the power of fake signals introduced via different processes, qualitative and quantitative analyses were carried out. The comparison shows that the newly proposed method could improve efforts to suppress random noise around non-horizontal phase reflection events and weaken the horizontal fake signals introduced by eliminating clutter such as ground waves.
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Di Ninni, Paola, Pietro Bolli, Fabio Paonessa, Giuseppe Pupillo, Giuseppe Virone, and Stefan J. Wijnholds. "Electromagnetic Analysis and Experimental Validation of the LOFAR Radiation Patterns." International Journal of Antennas and Propagation 2019 (January 27, 2019): 1–12. http://dx.doi.org/10.1155/2019/9191580.

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Low-frequency (<300 MHz) aperture array systems are one of the new trends in modern radio astronomy. Among the challenges they pose, the instrumental calibration is a key aspect requiring an accurate and reliable model of each element of such electrically large array. A full-wave electromagnetic analysis has been carried out for the lower frequency (30–80 MHz) array of the low frequency array (LOFAR) radio telescope taking into account the presence of soil ground, the mutual coupling between the antennas and the relevant receiver impedance loading effects. The impact of mutual coupling effects on the embedded element and array patterns is assessed for two subarray configurations with different degrees of sparseness. A simplistic array factor approach has been implemented as well to determine the accuracy in the antenna pattern evaluation with respect to the full-wave approach. Finally, results from an experimental campaign conducted by means of a micro hexacopter system show the reliability of the developed array numerical model.
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Leyser, Thomas B., H. Gordon James, Björn Gustavsson, and Michael T. Rietveld. "Evidence of <i>L</i>-mode electromagnetic wave pumping of ionospheric plasma near geomagnetic zenith." Annales Geophysicae 36, no. 1 (February 21, 2018): 243–51. http://dx.doi.org/10.5194/angeo-36-243-2018.

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Abstract. The response of ionospheric plasma to pumping by powerful HF (high frequency) electromagnetic waves transmitted from the ground into the ionosphere is the strongest in the direction of geomagnetic zenith. We present experimental results from transmitting a left-handed circularly polarized HF beam from the EISCAT (European Incoherent SCATter association) Heating facility in magnetic zenith. The CASSIOPE (CAScade, Smallsat and IOnospheric Polar Explorer) spacecraft in the topside ionosphere above the F-region density peak detected transionospheric pump radiation, although the pump frequency was below the maximum ionospheric plasma frequency. The pump wave is deduced to arrive at CASSIOPE through L-mode propagation and associated double (O to Z, Z to O) conversion in pump-induced radio windows. L-mode propagation allows the pump wave to reach higher plasma densities and higher ionospheric altitudes than O-mode propagation so that a pump wave in the L-mode can facilitate excitation of upper hybrid phenomena localized in density depletions in a larger altitude range. L-mode propagation is therefore suggested to be important in explaining the magnetic zenith effect. Keywords. Space plasma physics (active perturbation experiments)
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Dulkarim, Nur Rabihah, Mohd Fairus Mohd Yusoff, and Zaharah Johari. "Miniturize Flexible RFID Antenna Design using Metamaterial Structure." ELEKTRIKA- Journal of Electrical Engineering 18, no. 2 (September 1, 2019): 55–59. http://dx.doi.org/10.11113/elektrika.v18n2.165.

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Radio Frequency Identification (RFID) is the application of electromagnetic fields to identify and track tags that attached on the objects. It transmits or reads the radio frequency waves in the system. However, due to rapid development of technology in telecommunication, a much more smaller and flexible device is needed. Therefore, in this paper, a new design of flexible RFID antenna using metamaterial structure has been proposed. At first, the basic rectangular microstrip patch antenna with resonant frequency of 900MHz is designed. Then, the CSRR metamaterial structure is introduced at the ground plane to reduce the size of the antenna while the polydimethylsiloxane (PDMS) material is being use as the antenna substrate for flexibility. All the simulation designs were done using CST software. The antenna performances such as resonant frequency, return loss, radiation pattern, gain and bandwidth are then be analyzed and presented. The results show good performances and can be applied for future application.
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Dissertations / Theses on the topic "Electromagnetic ground waves. Radio"

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Smit, Jacobus Petrus. "Theoretical development and implementation of algorithms for the inversion of frequency domain airborne electromagnetic data into a layered earth." Pretoria : [s.n.], 2005. http://upetd.up.ac.za/thesis/available/etd-02222007-142602.

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Monaghan, William D. "Experimental studies of electromagnetic signals to enhance radio imaging method (RIM)." Morgantown, W. Va. : [West Virginia University Libraries], 2007. https://eidr.wvu.edu/etd/documentdata.eTD?documentid=5422.

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Thesis (M.S)--West Virginia University, 2007.
Title from document title page. Document formatted into pages; contains xi, 104 p. : ill. (some col.). Vita. Includes abstract. Includes bibliographical references (p. 69-70).
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Aloi, Daniel Nicholas. "Electromagnetic analysis of ground multipath for satellite-based positioning systems." Ohio : Ohio University, 1996. http://www.ohiolink.edu/etd/view.cgi?ohiou1178816934.

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Kincaid, Cheryl-Annette Mikler Armin. "Analyzing microwave spectra collected by the solar radio burst locator." [Denton, Tex.] : University of North Texas, 2007. http://digital.library.unt.edu/permalink/meta-dc-3655.

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Seguin, Sarah Ann. "Detection of low cost radio frequency receivers based on their unintended electromagnetic emissions and an active stimulation." Diss., Rolla, Mo. : Missouri University of Science and Technology, 2009. http://scholarsmine.mst.edu/thesis/pdf/Seguin_09007dcc80708216.pdf.

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Thesis (Ph. D.)--Missouri University of Science and Technology, 2009.
Vita. The entire thesis text is included in file. Title from title screen of thesis/dissertation PDF file (viewed November 23, 2009) Includes bibliographical references.
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Mason, Sammuel P. "Atmospheric effects on radio frequency (RF) wave propagation in a humid, near-surface environment." Monterey, California : Naval Postgraduate School, 2010. http://edocs.nps.edu/npspubs/scholarly/theses/2010/Mar/10Mar%5FMason.pdf.

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Thesis (M.S. in Meteorology)--Naval Postgraduate School, March 2010.
Thesis Advisor(s): Guest, Peter S. ; Goroch, Andreas K. "March 2010." Author(s) subject terms: Electromagnetic propagation, electromagnetic scattering, groundwave propagation, mathematical techniques, variance reduction. Includes bibliographical references (p. 67-68). Also available in print.
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Hall, Jan-Ove. "Interaction between Electromagnetic Waves and Localized Plasma Oscillations." Doctoral thesis, Uppsala : Acta Universitatis Upsaliensis : Univ.-bibl. [distributör], 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-4282.

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Pecoraro, Michael A. "Characterization of the effects of the human head on communication with implanted antennas /." Online version of thesis, 2010. http://hdl.handle.net/1850/11698.

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Altuntas, Emre. "Forecasting Of The Electromagnetic Waves In Ionized Media Related To Aerospace Applications." Master's thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/12608781/index.pdf.

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The dominant natural electromagnetic (EM) radiation in the extremely low frequency (ELF) range is due to global lightning activity. Radio waves of ELF band traveling along the surface of the ground are able to circle the globe and return to the starting point. Schumann Resonances (SR) are the EM phenomena which occur in the cavity formed by the conducting Earth and the ionosphere, with peak frequencies close to 8, 14, 20, 26 Hz, etc. The spectral characteristics of the SR modes are defined by their resonant mode amplitudes, center frequencies and half-widths. The characteristics of the SR became important in aerospace, marine applications, atmospheric studies, in addition to their relevance to global lightning studies due to their frequency band. The objective of this work is two fold: (i) to investigate the characteristics of SR parameters obtained at Sarkoy in Turkey
(ii) to model the nonlinear characteristics of the Near Earth Space Processes by forecasting the 1st SR mode intensities different time steps in advance using neural network modeling approach. The results show that the SR amplitudes exhibit the characteristics of Tropical African lightning activity and have maxima around 1400 UT. The neural network results show that the proposed model is able to forecast SR amplitudes from 0,5 to 36 hours in advance within reasonable error limits. Furthermore, a fuzzy neural network model with a non&ndash
linear optimization algorithm for the training phase is proposed and tested for the future work.
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Prothro, Joel Thomas. "Improved Performance of a Radio Frequency Identification Tag Antenna on a Metal Ground Plane." Thesis, Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/16303.

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Books on the topic "Electromagnetic ground waves. Radio"

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IEEE Antennas and Propagation Society., ed. Electromagnetic waves in stratified media. New York: Institute of Electrical and Electronics Engineers, 1995.

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Wait, James R. Electromagnetic waves in stratified media. New York: Institute of Electrical and Electronics Engineers, 1996.

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Beckmann, Petr. The scattering of electromagnetic waves from rough surfaces. Norwood, MA: Artech House, 1987.

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Electromagnetics, microwave circuits and antenna design for communications engineering. Boston: Artech House, 2003.

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L, Reed G. A., ed. Transmission and propagation of electromagnetic waves. 2nd ed. Cambridge [Cambridgeshire]: Cambridge University Press, 1986.

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Fornel, Frédérique de. Measurements using optic and RF waves. London: ISTE, 2010.

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Pompea, Stephen M. Invisible universe: The electromagnetic spectrum from radio waves to gamma rays. Berkeley, CA: Lawrence Hall of Science, University of California, 2002.

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RadioScience observing. Indianapolis, IN: Prompt Publications, 1998.

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author, Zhu Ning Yan, and Institution of Engineering and Technology, eds. Scattering of waves by wedges and cones with impedance boundary conditions. Edison, NJ: Scitech Publishing, an imprint of the IET, 2013.

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M, Babich V., Kinber Boris Evseevich, Moskovskiĭ fiziko-tekhnicheskiĭ institut, and Kazanskiĭ aviat͡sionnyĭ institut imeni A.N. Tupoleva., eds. Matematicheskie metody difrakt͡sii: Materialy IX Vsesoi͡uznoĭ shkoly po difrakt͡sii i rasprostranenii͡u voln. Kazanʹ: Kazanskiĭ aviat͡sionnyĭ in-t im. A.N. Tupoleva, 1988.

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Book chapters on the topic "Electromagnetic ground waves. Radio"

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Patil, Vinayak Laxman. "Electromagnetic Waves in Communication." In Chronological Developments of Wireless Radio Systems before World War II, 19–31. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-33-4905-6_3.

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Nahin, Paul J. "Antennas as Launchers and Interceptors of Electromagnetic Waves." In The Science of Radio, 26–36. New York, NY: Springer New York, 2001. http://dx.doi.org/10.1007/978-1-4613-0173-8_3.

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Hunsucker, Robert D. "Terrestrial Atmospheric Structure and Properties of Electromagnetic Waves." In Radio Techniques for Probing the Terrestrial Ionosphere, 3–39. Berlin, Heidelberg: Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-76257-4_1.

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Tofani, S. "Dosimetry of RF Induced Body to Ground Current and Implications on Safety Standards." In Radio Frequency Radiation Dosimetry and Its Relationship to the Biological Effects of Electromagnetic Fields, 293–99. Dordrecht: Springer Netherlands, 2000. http://dx.doi.org/10.1007/978-94-011-4191-8_31.

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Meaden, G. T. "Discovery of a New Electromagnetic Phenomenon in the Atmosphere: An Electrified Vortex and Its Physical Properties as Revealed by Patterned Ground Traces and Radio-Frequency, Electromagnetic, Acoustic and Luminous Effects." In Environmental and Space Electromagnetics, 576–84. Tokyo: Springer Japan, 1991. http://dx.doi.org/10.1007/978-4-431-68162-5_57.

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Jackson, Davina, and Richard Simpson. "Digital City: An Urban Perspective on Digital Earth." In Manual of Digital Earth, 527–63. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-32-9915-3_16.

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Abstract Digital Earth and many other satellite and semiconductor-enabled cartography advances imply the need for a globally useful schema for more scientific and eco-ethical management of cities. How should we plan an internationally cohesive and locally effective system for understanding and managing urban stocks and flows around our planet? The answer to this question depends on new systems for managing geodata to underpin increasingly automated systems for evidence-based decision making. The current concept of Digital Earth as a “self-aware nervous system” is being advanced by urban proto-projects that are supported or followed by globally applicable initiatives including Singapore’s new Geospatial Masterplan, the International Standards Organization’s City Standards, Denmark’s Open Public Life Data Protocol, and the City-GML data model. These recent ventures are progressing a movement that extends far beyond the 1990s concepts of “smart cities” enabled by wireless telecommunications. In the Digital Earth science paradigm, cities must simulate their key situations and scenarios and analyze Earth observation data obtained via satellite-enabled devices that remotely detect and interpret all the light and radio waves of the electromagnetic spectrum.
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Goldsmith, Mike. "1. Waves in essence." In Waves: A Very Short Introduction, 1–29. Oxford University Press, 2018. http://dx.doi.org/10.1093/actrade/9780198803782.003.0001.

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Most waves can be defined by just a few parameters: period, frequency, wavelength, amplitude, particle velocity, phase velocity, and group velocity. ‘Waves in essence’ explains these parameters in turn and then goes on to discuss the spreading and fading of waves and the complexities of waves that arise through their interactions with objects and other waves resulting in diffraction and interference. It also describes the difference between longitudinal and transverse waves and the important wave phenomena of refraction and reflection. It then outlines the fundamental difference between pressure waves like sound, ocean, and seismic waves, and electromagnetic waves, which include light and radio waves. All electromagnetic radiation is made of particles called photons.
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"Electromagnetic Waves." In Introduction to Radio Engineering, 33–47. Taylor & Francis Group, 6000 Broken Sound Parkway NW, Suite 300, Boca Raton, FL 33487-2742: CRC Press, 2016. http://dx.doi.org/10.1201/9781315367194-4.

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"Electromagnetic waves." In An Introduction to Radio Frequency Engineering, 204–27. Cambridge University Press, 2004. http://dx.doi.org/10.1017/cbo9780511801327.010.

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Goldsmith, Mike. "6. Electromagnetic waves." In Waves: A Very Short Introduction, 70–99. Oxford University Press, 2018. http://dx.doi.org/10.1093/actrade/9780198803782.003.0006.

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‘Electromagnetic waves’ considers the history of the scientific investigation into the electromagnetic spectrum, including Einstein’s insight into the quantized nature of electromagnetic radiation. It explains that the only difference between light, radio waves, and all the other forms of electromagnetic radiation is the length of the fictitious-but-convenient waves or, equivalently, the energy of the photons involved. These different energies lead to different mechanisms for the formation and absorption of the different kinds of radiation, and it is this which gives rise to their different behaviours. Radio waves, microwaves, infrared radiation, light, ultraviolet light, X-rays, and gamma rays are all discussed.
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Conference papers on the topic "Electromagnetic ground waves. Radio"

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Yakimov, A. N., A. R. Bestugin, and I. A. Kirshina. "Modeling of the Use Corner Reflector of Electromagnetic Waves in the Ground Radio Line of Communication." In 2021 Wave Electronics and its Application in Information and Telecommunication Systems (WECONF). IEEE, 2021. http://dx.doi.org/10.1109/weconf51603.2021.9470573.

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Xu, Hong Lei, Hong Cheng Yin, and Ting Ting Gu. "VLF Near-field of Radio Wave Penetrating Into A Ground Medium." In 2020 IEEE MTT-S International Conference on Numerical Electromagnetic and Multiphysics Modeling and Optimization (NEMO). IEEE, 2020. http://dx.doi.org/10.1109/nemo49486.2020.9343659.

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Kakad, Amar, Bharati Kakad, Yoshiharu Omura, Ashwini K. Sinha, Aditi Upadhyay, and Rahul Rawat. "Ground observation of the modulation of electromagnetic ion cyclotron waves by short and long periodicities and associated particle loss in the Earth’s inner magnetosphere." In 2019 URSI Asia-Pacific Radio Science Conference (AP-RASC). IEEE, 2019. http://dx.doi.org/10.23919/ursiap-rasc.2019.8738495.

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Wu, Z. "Tomographic imaging of a ground surface using radio ground waves." In 11th International Conference on Antennas and Propagation (ICAP 2001). IEE, 2001. http://dx.doi.org/10.1049/cp:20010414.

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Tehrani, Mehran, Ayoub Y. Boroujeni, Majid Manteghi, Zhixian Zhou, and Marwan Al-Haik. "Integration of Carbon Nanotubes Into a Fiberglass Reinforced Polymer Composite and its Effects on Electromagnetic Shielding and Mechanical Properties." In ASME 2013 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/imece2013-65202.

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Electromagnetic (EM) waves, such as electronic noise and radio frequency interference can be regarded as an invisible electronic pollution which justifies a very active quest for effective electromagnetic interference (EMI) shielding materials. Highly conductive materials of adequate thickness are the primary solutions to shield against EMI. Equipment cases and basic structure of space aircraft and launch vehicles have traditionally been made of aluminum, steel and other electrically conductive metals. However, in recent years composite materials have been used for electronic equipment manufacturing because of their lightweight, high strength, and ease of fabrication. Despite these benefits, composite materials are not as electrically conductive as traditional metals, especially in terms of electrical grounding purposes and shielding. Therefore, extra effort must be taken to resolve these shortcomings. The present work demonstrates a study on developing hybrid composites based on fiberglass with surface grown carbon nanotubes (CNTs) for EMI applications. The choice of fiberglass is primarily because it naturally possesses poor electrical conductivity, hence growing CNTs over glass fiber surface can significantly improve the conductivity. The fabrics were sputter-coated with a thin layer of SiO2 thermal barrier prior to growing of CNTs. The CNTs were grown on the surface of woven fiberglass fabrics utilizing a relatively low temperature technique. Raw fiberglass fabric, SiO2 coated fabric, and SiO2 coated fabric which was subjected to the identical heat treatment as the samples with CNTs were also prepared. Two-layers composite specimens based on different surface treated fiberglass fabrics were fabricated and their EMI shielding effectiveness (SE) was measured. The EMI SE of the hybrid CNT-fiberglass composites was shown to be 5–10 times of the reference samples. However, the tensile mechanical properties of the composites based on the different above mentioned fibers revealed significant degradation due to the elevated CNT growth temperature and the addition of coating layer and CNTs. To further probe the structure of the hybrid composites and the inter-connectivity of the CNTs from one interface to another, sets of 20-layers composites based on different surface treated fabrics were also fabricated and characterized.
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Razafindratsima, Stephen, Mehdi Sbartai, Jean-Paul Balayssac, Cedric Payan, Sandrine Rakotonarivo, and Vincent Garnier. "Modelling the diffusion of electromagnetic waves in concrete." In 2018 17th International Conference on Ground Penetrating Radar (GPR). IEEE, 2018. http://dx.doi.org/10.1109/icgpr.2018.8441568.

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Pak, O. V., and V. D. Zakharchenko. "Radio pulse Stroboscopic Transformation of Coherent Radio Signals in Conditions of Interference." In 2019 Radiation and Scattering of Electromagnetic Waves (RSEMW). IEEE, 2019. http://dx.doi.org/10.1109/rsemw.2019.8792692.

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Hinkel-Lipsker, D. E., B. D. Fried, and G. J. Morales. "Analytic expression for mode conversion of electrostatic and electromagnetic waves." In Radio−frequency power in plasmas. AIP, 1989. http://dx.doi.org/10.1063/1.38485.

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Yi, J., A. de Lustrac, G. P. Piau, and S. N. Burokur. "All-dielectric microwave devices for controlling the path of electromagnetic waves." In 2016 IEEE Radio and Antenna Days of the Indian Ocean (RADIO). IEEE, 2016. http://dx.doi.org/10.1109/radio.2016.7772008.

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Tantisopharak, Tanawut, and Monai Krairiksh. "Applications of Electromagnetic Waves to the Quality Control of Agricultural Products." In 2018 IEEE Radio and Antenna Days of the Indian Ocean (RADIO). IEEE, 2018. http://dx.doi.org/10.23919/radio.2018.8572300.

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