Literatura académica sobre el tema "Radio waves"

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Artículos de revistas sobre el tema "Radio waves"

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Hodkinson, Liam, and Elizabeth Stitt. "Radio Waves." Index on Censorship 39, no. 2 (2010): 49–50. http://dx.doi.org/10.1177/03064220100390021001.

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Apple, Jacki, Regine Beyer, and Richard Kostelanetz. "Making Radio Waves." TDR (1988-) 36, no. 2 (1992): 7. http://dx.doi.org/10.2307/1146189.

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Rakusen, Sam. "Making radio waves!" Primary Teacher Update 2013, no. 18 (2013): 53. http://dx.doi.org/10.12968/prtu.2013.1.18.53b.

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O'Sullivan, Mike. "Making radio waves." A Life in the Day 10, no. 2 (2006): 6–8. http://dx.doi.org/10.1108/13666282200600013.

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Dyson, Frances. "Radio Art in Waves." Leonardo Music Journal 4 (1994): 9. http://dx.doi.org/10.2307/1513174.

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Dixon, E. "Radio waves of progress." Engineering & Technology 4, no. 5 (2009): 40–41. http://dx.doi.org/10.1049/et.2009.0506.

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Wait, J. R. "Propagation Of Radio Waves." IEEE Antennas and Propagation Magazine 40, no. 2 (1998): 88. http://dx.doi.org/10.1109/map.1998.683546.

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Friebele, Elaine. "“Seeing” with radio waves." Eos, Transactions American Geophysical Union 78, no. 30 (1997): 310. http://dx.doi.org/10.1029/97eo00203.

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Storey, L. R. O. "Natural VLF radio waves." Planetary and Space Science 37, no. 8 (1989): 1021–22. http://dx.doi.org/10.1016/0032-0633(89)90058-5.

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Jones, Dyfrig. "Natural VLF Radio Waves." Journal of Atmospheric and Terrestrial Physics 51, no. 2 (1989): 151. http://dx.doi.org/10.1016/0021-9169(89)90116-5.

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Tesis sobre el tema "Radio waves"

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Starck, Patrik. "Energy harvesting of ambient radio waves." Thesis, Uppsala universitet, Avdelningen för datorteknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-355020.

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The aim for this thesis was to investigate if harvesting of ambient radio waves could be a viable source of energy and where and when it can be used. A survey of the signal strengths at different locations in Uppsala, Sweden was performed which showed that the cellular frequency bands were the ones that carried the most energy. One circuit was manufactured and two more were simulated, together with the circuitry required to measure and display how much energy that was being harvested. The design was tested at the same locations as the survey of the signal strength was conducted at. The maximum
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Hawbaker, Dwayne Allen. "Indoor wide band radio wave propagation measurements and models at 1.3 ghz and 4.0 ghz /." This resource online, 1989. http://scholar.lib.vt.edu/theses/available/etd-08182009-040436/.

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Pala, Fatih. "Frequency and polarization diversity simulations for Urban UAV communication and data links." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2004. http://library.nps.navy.mil/uhtbin/hyperion/04Sep%5FPala.pdf.

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Rasam, Setty Harish Raghav. "Assessment of Volumetric Water Content Using Radio Waves." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019.

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Volumetric water content evaluation in structures, substructures, soils, and subsurface in general is a crucial issue in a wide range of applications. The main weakness of subsurface moisture sensing techniques is usually related both to the lack of cost-effectiveness of measurements, and to unsuitable support scales with respect to the extension of the surface to be investigated. In this regard, Wireless Underground Sensor Network are increasingly used non-destructive tool specifically suited for characterization and measurement. It is undeniable that wireless communication technology has bec
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Ciavarella, Michele. "Volumetric soil moisture evaluation via radio waves propagation." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019.

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Nowadays technology plays an important role in different sectors of farm management, in particular technologies based on soil moisture assessment have proven to be efficient in helping farmers who need timely techniques to determine crop water requirements. The main weakness of subsurface moisture sensing techniques is usually related both to the lack of cost-effectiveness of measurements and to unsuitable support scales with respect to the extension of the surface to be investigated. In this regard, Wireless Underground Sensor Network are increasingly used non-destructive tool specifically s
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Lange, Martin, and Christoph Jacobi. "Analysis of gravity waves from radio occultation measurements." Universitätsbibliothek Leipzig, 2017. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-217072.

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In the height range 10–30 km atmospheric gravity waves lead to periodic perturbations of the background temperature field in the order of 2-3 K, that are resolved in temperature profiles derived from radio occultation measurements. Due to the spherical symmetry assumption in the retrieval algorithm and the low horizontal resolution of the measurement damping in the amplitude and phase shift of the waves occurs leading to remarkable errors in the retrieved temperatures. The influence of the geometric wave parameters and the measurement geometry on plane gravity waves in the range 100-1000 km ho
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Lange, Martin, and Christoph Jacobi. "Analysis of gravity waves from radio occultation measurements." Wissenschaftliche Mitteilungen des Leipziger Instituts für Meteorologie ; 26 = Meteorologische Arbeiten aus Leipzig ; 7 (2002), S. 101-108, 2002. https://ul.qucosa.de/id/qucosa%3A15225.

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In the height range 10–30 km atmospheric gravity waves lead to periodic perturbations of the background temperature field in the order of 2-3 K, that are resolved in temperature profiles derived from radio occultation measurements. Due to the spherical symmetry assumption in the retrieval algorithm and the low horizontal resolution of the measurement damping in the amplitude and phase shift of the waves occurs leading to remarkable errors in the retrieved temperatures. The influence of the geometric wave parameters and the measurement geometry on plane gravity waves in the range 100-1000 km ho
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Thomas, Edwin Christopher. "Phase and amplitude variations in the wave fields of ionospherically reflected radio waves." Thesis, University of Leicester, 1986. http://hdl.handle.net/2381/35807.

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The wavefronts of high frequency (HF) radio waves received after reflection from the ionosphere exhibit both spatial non-linearities and temporal variations which limit the performance of large aperture receiving arrays. The objective of this investigation was to measure the phase and amplitude of ionospherically propagated signals in order to relate these parameters to the reflection process. This thesis describes the design and construction of a large aperture multi-element array and its implementation for wavefrot investigations. The hardware and software developed to control the equipment
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Russell, Thomas A. "Predicting microwave diffraction in the shadows of buildings." Thesis, This resource online, 1991. http://scholar.lib.vt.edu/theses/available/etd-10222009-125156/.

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Carozzi, Tobia. "Radio waves in the ionosphere : Propagation, generation and detection." Doctoral thesis, Uppsala universitet, Institutionen för astronomi och rymdfysik, 2000. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-1184.

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We discuss various topics concerning the propagation, generation, and detec-tionof high-frequency (HF) radio waves in the Earth's ionosphere. With re-gardsto propagation, we derive a full wave Hamiltonian and a polarization evo-lutionequation for electromagnetic waves in a cold, stratified magnetoplasma.With regards to generation, we will be concerned with three experiments con-ducted at the ionosphere- radio wave interaction research facilities at Sura, Rus-siaand Tromsø, Norway. These facilities operate high power HF transmittersthat can inject large amplitude electromagnetic waves into the
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Libros sobre el tema "Radio waves"

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illustrator, Escabasse Sophie, ed. Radio waves. Wayland, 2014.

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Press, White Pine, ed. Radio waves. White Pine Press, 2005.

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Press, White Pine, ed. Radio waves: Poems. White Pine Press, 2005.

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Richards, John A. Radio Wave Propagation. Springer London, 2008.

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1924-, Iwai Akira, ed. Natural VLF radio waves. Research Studies Press, 1988.

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Maclean, T. S. M. Radiowave propagation over ground. Chapman & Hall, 1993.

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Alvarez, Gloria. Heart waves. Meteor Pub., 1992.

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1920-, Cullen A. L., International Union of Radio Science., and International Council of Scientific Unions., eds. Modern radio science. Published for the International Union of Radio Science and the ICSU Press by Oxford University Press, 1988.

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E, Kerr Donald, and Institution of Electrical Engineers, eds. Propagation of short radio waves. P. Peregrinus on behalf of the Institution of Electrical Engineers, 1987.

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E, Kerr Donald, ed. Propagation of short radio waves. Peninsula Publishing, 1988.

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Capítulos de libros sobre el tema "Radio waves"

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Lauterbach, Thomas. "What Are Electromagnetic Waves?" In Radio Astronomy. Springer Fachmedien Wiesbaden, 2022. http://dx.doi.org/10.1007/978-3-658-36035-1_2.

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Kozlov, Anatoly Ivanovich, Yuri Grigoryevich Shatrakov, and Dmitry Alexandrovich Zatuchny. "Propagation of Radio Waves." In Radar and Radionavigation. Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-6191-5_2.

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Anand, M. L. "Propagation of Radio Waves." In Principles of Communication Engineering. CRC Press, 2021. http://dx.doi.org/10.1201/9781003222279-26.

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Smith, Paul Julian. "Iñárritu as Career Director in Advertising, Radio, and TV." In Mexican Waves. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-86731-6_2.

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Nahin, Paul J. "Preradio History of Radio Waves." In The Science of Radio. Springer New York, 2001. http://dx.doi.org/10.1007/978-1-4613-0173-8_2.

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Goss, W. M., Claire Hooker, and Ronald D. Ekers. "The Evolution of Aperture Synthesis Imaging." In Historical & Cultural Astronomy. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-07916-0_37.

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AbstractThe theme of interference between radio waves played a key unifying role throughout Pawsey’s career. Pawsey used radio-wave interference to study the structure of the ionosphere for his PhD research (Chap. 7), and it was Pawsey who first realised that radio images of the sky could be made from measurements of radio interference. Since these observations are made in the aperture plane and not the image plane, this is referred to as “indirect imaging”. When electromagnetic waves from the same source combine, they can either reinforce or cancel depending on the path difference. This makes
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Kozlov A. I., Logvin A. I., Sarychev V. A., Shatrakov Y. G., and Zavalishin O. I. "Own Radio Emission and Scattering of Radio Waves." In Springer Aerospace Technology. Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-8395-3_7.

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Shinozawa, Yasuo. "Effective Use of Radio Waves." In Telecommunications Policies of Japan. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-1033-5_6.

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Krchňák, Martin, Marek Češkovič, Pavol Kurdel, and Anton Panda. "Anechoic Chambers for Radio Waves." In Lecture Notes in Electrical Engineering. Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-48835-1_2.

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Sizun, Hervé. "Radio Mobile Measurement Techniques." In Measurements using Optic and RF Waves. John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118586228.ch8.

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Actas de conferencias sobre el tema "Radio waves"

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Wedepohl, E. "Radio Wave Tomography: Imaging Ore Bodies Using Radio Waves." In 3rd SAGA Biennial Conference and Exhibition. European Association of Geoscientists & Engineers, 1993. http://dx.doi.org/10.3997/2214-4609-pdb.224.028.

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Sus, Bogdan A., and Bogdan B. Sus. "Wave-particle nature of radio waves." In 2016 13th International Conference on Modern Problems of Radio Engineering, Telecommunications and Computer Science (TCSET). IEEE, 2016. http://dx.doi.org/10.1109/tcset.2016.7451959.

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Goertz, C. K. "Planetary radio waves." In AIP Conference Proceedings Volume 144. AIP, 1986. http://dx.doi.org/10.1063/1.35658.

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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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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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null. "Interstellar Scattering of Radio Waves." In AIP Conference Proceedings Volume 174. AIP, 1988. http://dx.doi.org/10.1063/1.2931558.

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Xiong, Fuzhi. "HF radio waves propagation model based on sky wave." In 3RD INTERNATIONAL CONFERENCE ON MATERIALS SCIENCE, RESOURCE AND ENVIRONMENTAL ENGINEERING (MSREE 2018). Author(s), 2018. http://dx.doi.org/10.1063/1.5075706.

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Kaufman, Allan N. "Conversion among collective waves via gyroballistic waves." In RADIO FREQUENCY POWER IN PLASMAS:14th Topical Conference. AIP, 2001. http://dx.doi.org/10.1063/1.1424220.

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Karaev, V. Yu, M. A. Panfilova, Yu A. Titchenko, Eu M. Meshkov, and G. N. Balandina. "Remote sensing of the sea waves by the dual-frequency precipitation radar: First results." In 2015 IEEE Radio and Antenna Days of the Indian Ocean (RADIO). IEEE, 2015. http://dx.doi.org/10.1109/radio.2015.7323413.

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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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Informes sobre el tema "Radio waves"

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Jaramillo-Echeverri, Juliana. Waves of Change? Radio announcements and fertility decline. Banco de la República, 2024. http://dx.doi.org/10.32468/chee.65.

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Can radio campaigns affect fertility? This paper examines the impact of a national radio campaign promoting family planning clinics in late 1960s Colombia on the country's rapid fertility decline. The campaign, initiated by Profamilia in 1969, provided information about the location of clinics without giving detailed contraceptive information. Using data from the full count 1973 census and information on clinic locations and radio programs, the study leverages exogenous variation in radio signal strength to estimate the campaign's effect on fertility. I follow a difference-in-differences strat
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Lee, M. C. Space Plasma Effects and Interactions With Radio Waves. Defense Technical Information Center, 2001. http://dx.doi.org/10.21236/ada387788.

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Tricoles, G., E. L. Rope, and J. L. Nilles. Real Time Imaging with Radio Waves and Microwaves. Defense Technical Information Center, 1986. http://dx.doi.org/10.21236/ada175515.

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Mishin, Evgeny. Physics of the Geospace Response to Powerful HF Radio Waves. Defense Technical Information Center, 2012. http://dx.doi.org/10.21236/ada569091.

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Gandy, R., and D. Swanson. Experimental studies of radio frequency waves and confinement in the Auburn Torsatron. Office of Scientific and Technical Information (OSTI), 1990. http://dx.doi.org/10.2172/5175255.

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Sales, Gary S., Bodo W. Reinisch, and Claude G. Dozois. Preliminary Investigation of Ionospheric Modification Using Oblique Incidence High Power HF Radio Waves. Defense Technical Information Center, 1986. http://dx.doi.org/10.21236/ada179174.

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Gopalswamy, Nat, Pertti Mäkelä, and Seiji Yashiro. A Catalog of Type II radio bursts observed by Wind/WAVES and their Statistical Properties. Balkan, Black sea and Caspian sea Regional Network for Space Weather Studies, 2020. http://dx.doi.org/10.31401/sungeo.2019.02.03.

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Gopalswamy, Nat, Pertti Mäkelä, and Seiji Yashiro. A Catalog of Type II radio bursts observed by Wind/WAVES and their Statistical Properties. Balkan, Black sea and Caspian sea Regional Network for Space Weather Studies, 2020. http://dx.doi.org/10.31401/sungeo.2020.02.03.

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Porkolab, Miklos, Alessandro marinoni, Jon Chris Rost, R. Seraydarian, and E. Davis. Development of an Ultrahigh-bandwidth Phase Contrast Imaging System for detection of electron scale turbulence and Gigahertz Radio-Frequency Waves. Office of Scientific and Technical Information (OSTI), 2021. http://dx.doi.org/10.2172/1784771.

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Abdolmaleki, Kourosh. PR-453-134504-R05 On Bottom Stability Upgrade - MS III. Pipeline Research Council International, Inc. (PRCI), 2021. http://dx.doi.org/10.55274/r0012195.

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The extension of the PRCI on bottom stability (OBS) software's applicability to shallow water is assessed. Version 3 of the software has a limitation on water depth; only depths greater than 6 m (20 ft) are accepted. This limitation is likely related to the increasing inaccuracy of linear wave theory as the wave height to water depth ratio increases, as well as caution about breaking wave limits. The usage of linear wave theory inside the software can be categorized into two different types: � Linear regular waves - these are used in the Level 1 module to determine the motions of the water par
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