Academic literature on the topic 'ELF (Extremely low frequency)'

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Journal articles on the topic "ELF (Extremely low frequency)"

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Riry, Prihatini, Abdullah Mohamad Puad, Abdullah Tuan Abdul Rashid bin Tuan, Said Ismail, Hussin Halil, and Saleh Norihan Mohamad. "Extremely low frequency electromagnetic field generator suitable for plant in vitro studies." Research in Agricultural Engineering 63, No. 4 (2017): 180–86. http://dx.doi.org/10.17221/47/2016-rae.

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The extremely low frequency electromagnetic field (ELF-EMF) occurs naturally from the earth and artificially as a human invention. The objectives of this study were to develop a suitable ELF-EMF generator for in vitro plants culture studies and to determine the effect of ELF-EMF exposure on in vitro tobacco (Nicotiana tabacum) growth and chlorophyll content. An ELF-EMF generator, the coGEM 1,000 was constructed using four coils of copper wires that were connected to a transformer, multimeter and rheostat. The coGEM 1,000 suitable for tissue culture plants is able to produce stable and uniform
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Feng, Shi Min, Sui Hua Zhou, and Hong Xin Zhang. "A Method on Underwater Extremely Low Frequency Atmospheric Noise." Applied Mechanics and Materials 333-335 (July 2013): 2457–60. http://dx.doi.org/10.4028/www.scientific.net/amm.333-335.2457.

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On the basis of low-pass characteristic of the ocean in extremely low frequency (ELF) band , which makes the atmospheric noise distort and signal to noise (SNR) of the receiver worse, magnitude-frequency and phase frequency characteristic of the ocean in ELF band were researched. Influence at different depth of the ocean on the atmospheric noise was simulated and frequency compensation filter was designed with the best uniform approximation method to compensate the distorted atmospheric noise. With the sampling frequency fs=1KHz, at 30m~200m depth, no more than 9th-order IIR filter was used to
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Park, JinKyung, EunHye Jeong, and GyeongAe Seomun. "Extremely Low-Frequency Magnetic Fields Exposure Measurement during Lessons in Elementary Schools." International Journal of Environmental Research and Public Health 17, no. 15 (2020): 5284. http://dx.doi.org/10.3390/ijerph17155284.

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Schools are an important place for children’s exposure to electromagnetic fields, which may cause adverse health effects. To better understand environmental extremely low-frequency magnetic fields (ELF-MFs) exposure among elementary school students, we measured numeric values of ELF-MFs in five classrooms at four schools during digital learning class hours. The measurement of ELF-MFs was taken with an EMDEX II field analyzer. Specifically, we examined the level of exposure to ELF-MFs for each student’s seating position in the classroom. The results showed that ELF-MFs exposure levels were lowe
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Kapri-Pardes, Einat, Tamar Hanoch, Galia Maik-Rachline, et al. "Activation of Signaling Cascades by Weak Extremely Low Frequency Electromagnetic Fields." Cellular Physiology and Biochemistry 43, no. 4 (2017): 1533–46. http://dx.doi.org/10.1159/000481977.

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Background/Aims: Results from recent studies suggest that extremely low frequency magnetic fields (ELF-MF) interfere with intracellular signaling pathways related to proliferative control. The mitogen-activated protein kinases (MAPKs), central signaling components that regulate essentially all stimulated cellular processes, include the extracellular signal-regulated kinases 1/2 (ERK1/2) that are extremely sensitive to extracellular cues. Anti-phospho-ERK antibodies serve as a readout for ERK1/2 activation and are able to detect minute changes in ERK stimulation. The objective of this study was
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Santini, Maria T., Gabriella Rainaldi, and Pietro L. Indovina. "Cellular effects of extremely low frequency (ELF) electromagnetic fields." International Journal of Radiation Biology 85, no. 4 (2009): 294–313. http://dx.doi.org/10.1080/09553000902781097.

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Lee, Sang-Kon, Sungman Park, Yoon-Myoung Gimm, and Yoon-Won Kim. "Extremely Low Frequency Magnetic Fields Induce Spermatogenic Germ Cell Apoptosis: Possible Mechanism." BioMed Research International 2014 (2014): 1–8. http://dx.doi.org/10.1155/2014/567183.

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The energy generated by an extremely low frequency electromagnetic field (ELF-EMF) is too weak to directly induce genotoxicity. However, it is reported that an extremely low frequency magnetic field (ELF-MF) is related to DNA strand breakage and apoptosis. The testes that conduct spermatogenesis through a dynamic cellular process involving meiosis and mitosis seem vulnerable to external stress such as heat, MF exposure, and chemical or physical agents. Nevertheless the results regarding adverse effects of ELF-EMF on human or animal reproductive functions are inconclusive. According to the guid
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ASTHAN, RHEYUNIARTO SAHLENDAR, DEAN CORIO, MIA MARIA ULFAH, URI ARTA RAMADHANI, and ACHMAD MUNIR. "Penerima Gelombang ELF berbasis Op-Amp untuk Pengolahan Akuisisi Data Gempa Bumi." ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika 9, no. 3 (2021): 592. http://dx.doi.org/10.26760/elkomika.v9i3.592.

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ABSTRAKPenelitian ini membahas mengenai penerima gelombang extremely low frequency (ELF) untuk pengolahan akuisisi data gempa bumi. Penerima ELF dirancang menggunakan operational amplifier (Op-Amp) dengan masukan takmembalik. Sinyal yang diterima oleh antena diteruskan ke penerima ELF yang terdiri dari preamplifier dan amplifier untuk proses penguatan, serta filter aktif orde 2 untuk menekan sinyal di atas frekuensi cut-off sebesar 50Hz. Karakterisasi penerima ELF dilakukan dengan mengamati perbandingan level tegangan sinyal keluaran terhadap level tegangan sinyal masukan, sensitivitas, serta
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Zantis, Franz P., Ján Hribik, and Daniela Ďuračková. "Extremely Low Frequency Signal Acquisition, Recording and Analysis." Journal of Electrical Engineering 67, no. 3 (2016): 185–91. http://dx.doi.org/10.1515/jee-2016-0026.

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Abstract Our environment is permeated by electrical and magnetic alternating waves in the frequency range above the AC voltage of 50 Hz and also in the radio frequency range. Much attention from the public is given to these waves. Through numerous studies and publications about this type of oscillations and waves it is largely known from which sources they occur and which impact they have. However, very little information could be found about electrical and magnetic alternating waves in the frequency range below 50 Hz. The aim of this research is to demonstrate that these signals exist and als
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Zendehdel, Rezvan, Il Je Yu, Behnam Hajipour-Verdom, and Zahra Panjali. "DNA effects of low level occupational exposure to extremely low frequency electromagnetic fields (50/60 Hz)." Toxicology and Industrial Health 35, no. 6 (2019): 424–30. http://dx.doi.org/10.1177/0748233719851697.

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Aims: Exposure to extremely low frequency magnetic fields (ELF-MF) occurs from natural and artificial sources. Although ELF-MF has been classified as a suspected humans carcinogen agent by the International Agency for Research on Cancer, little is known of the effects of ELF-MF at lower exposure levels of the recommended range. In the present study, DNA damage in the peripheral blood cells of power line workers was investigated. Materials and Methods: Occupational exposure to ELF-MF in a power plant was measured using the National Institute for Occupational Safety and Health (NIOSH) manual. Si
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Niati, Enik Wasiah, Sudarti Sudarti, and Yushardi Yushardi. "PENGARUH MEDAN MAGNET EXTREMELY LOW FREQUENCY (ELF) TERHADAP NILAI pH BUAH ANGGUR HITAM." ORBITA: Jurnal Kajian, Inovasi dan Aplikasi Pendidikan Fisika 7, no. 1 (2021): 155. http://dx.doi.org/10.31764/orbita.v7i1.4641.

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ABSTRAKMedan magnet ELF merupakan gelombang elektromagnetik dengan frekuensi sampai 300 Hz dan tergolong sebagai radiasi non ionizing. Penelitian ini menggunakan desain randomized subject post-test only control group design, dengan pembagian dua kelompok subjek penelitian dipilih secara acak. Penelitian ini bertujuan untuk mengetahui pengaruh paparan medan magnet ELF .terhadap nilai pH buah anggur hitam. Dalam penelitian ini ada dua kelompok yaitu kelompok kontrol dan eksperimen, dimana kelompok eksperimen diberi perlakuan medan magnet ELF intensitas 300μT dan 500μT selama 60’ dan 120’ untuk m
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Dissertations / Theses on the topic "ELF (Extremely low frequency)"

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Kim, Tony C. "Interaction of Very Low Frequency (VLF) and Extremely Low Frequency (ELF) Waves in the Ionospheric Plasma and Parametric Antenna Concept." Wright State University / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=wright1486674973747427.

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Strange, Samuel J. "Removal of coherent extremely low frequency (ELF) background noise by adaptive noise cancelation." Thesis, Monterey, California. Naval Postgraduate School, 1993. http://hdl.handle.net/10945/26725.

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The use of the Sequential Regression Algorithm (SER) to coherently remove background noise from an ELF sensor is presented. The SER algorithm is described for a multi-channel application in order to cancel coherent portions of reference sensors from a primary sensor. The algorithm adaptively accounts for differences between two parallel array platforms for the purpose of coherent subtraction. A section on likelihood ratio detector schemes for detecting narrowband signals is also presented. This work is in support of a submerged ELF sensor array project run by the Johns Hopkins University Appli
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Alaiwi, Ayman Ahmed. "The design and investigation of an extremely low frequency (ELF) transmission data link." Thesis, University of Huddersfield, 2013. http://eprints.hud.ac.uk/id/eprint/19029/.

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The telecommunication engineering field is playing a big role in the technology revolution, with most new technologies, smart phones and computers etc requiring 3G internet connection to be constantly in communication worldwide. A high spectral efficiency spectrum and maximising the number of users and transmission rate within a frequency band are the most critical design objectives and challenge to improve the reliability and performance of wireless communications systems. The use of the Extremely Low Frequency (ELF) band has largely been confined to submerged submarine communications and its
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Papp, Aminnejad Benjamin, and Daniel Wieweg. "Magnetfält i elkraftanläggningar : Ett projekteringsverktyg i Excel för bedömning av magnetfält från elkraftsutrustning på lågspänningssidan." Thesis, KTH, Data- och elektroteknik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-179827.

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Exponering av det lågfrekventa ELF (Extremely low frequency) magnetfältet som genereras vid dagens elnät är något som är relativt nytt för människokroppen och den ökar ständigt i och med den tekniska utvecklingen. Eftersom det inte finns ett klart svar på hur fältet påverkar kroppen så tillämpas försiktighet för att hålla exponeringsnivåerna nere och försäkra sig om att ingen skada sker. Med hjälp av tidigare forskning inom området och uppmätta värden från olika anläggningar samt överslagsberäkningar har ett verktyg i Excel tagits fram för att kunna uppskatta magnituden av magnetfältet. Verkty
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Belcher, Robert W. "Extremely High Frequency (EHF) Low Probability of Intercept (LPI) communication applications." Thesis, Monterey, California : Naval Postgraduate School, 1990. http://handle.dtic.mil/100.2/ADA226653.

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Thesis (M.S. in Telecommunications Systems Management)--Naval Postgraduate School, March 1990.<br>Thesis Advisor(s): Schwendtner, Thomas A. Second Reader: Davidson, K. L. "March 1990." Description based on title screen as viewed on August 25, 2009. DTIC Descriptor(s): Interception probabilities, communication and radio systems, communications networks, spectra, command and control systems, extremely high frequency, naval operations, tactical warfare, low rate, theses, scenarios, line of sight, military applications. Author(s) subject terms: Millimeter wave, EHF, Extremely High Frequency, LPI,
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Wiese, Michelle Kim. "Immune stimulation with short-term exposure to extremely low frequency electromagnetic fields in mice (Mus. musculus)." Thesis, Bloemfontein : Central University of Technology, Free State, 2013. http://hdl.handle.net/11462/209.

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Thesis (M. Tech. (Biomedical Technology)) -- Central University of technology, Free State, 2013<br>Electromagnetic fields are present wherever electricity is created. The frequency range of these electromagnetic fields is from extremely low to extremely high. The fields present in domestic areas fall within the extremely low frequency range. These fields are created by domestic electrical appliances and telecommunication. There has been much debate on the effect of exposure to these fields on human health. Research has not yet been able to prove adverse effect of these fields on human hea
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Hanzelka, Michael. "Nízkoúrovňová měření a vyhodnocení vlivu magnetických polí na lidský organismus, jeho chování a rozhodování." Doctoral thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2017. http://www.nusl.cz/ntk/nusl-295646.

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Presents results of research in the field of low-level electromagnetic fields interacting with the higher organisms, in the frequency band from 0,01 to 30 Hz effect on the individual or social group. Provides a description of the methodology of measuring and evaluating the impact of workplace assembled measuring low-level electromagnetic fields, extremely low frequency (ELF) on a sample of respondents. It was proposed measuring device for monitoring and evaluating how respondents' reactions to changes in the geomagnetic or external - external magnetic / electromagnetic field and to work for th
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Hung, Ching-Sui. "Effects of pulse-modulated microwave radiation from mobile phones on the sleep/waking EEG and psychomotor vigilance." Thesis, Loughborough University, 2008. https://dspace.lboro.ac.uk/2134/15747.

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This study employed multiple assessments, including sleep/resting waking EEG (visual scoring and power spectral analysis) and psychomotor vigilance task, to access effects of varying pulse-modulated microwaves (such as: 'talk', 'listen' and 'standby' mode signals) emitted from a standard mobile phone. The idea was prompted by a finding that the pulse modulation frequencies of mobile phone signals correspond to the frequencies of brain delta and alpha waves. Thereby it is possible the brain is able to recognize and respond to the low-frequency components of the mobile phone signals. Supporting
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Forssén, Ulla. "Extremely low frequency magnetic fields and breast cancer /." Stockholm, 2003. http://diss.kib.ki.se/2003/91-7349-532-8/.

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Lazenby, Andrea Natalie. "Extremely low frequency magnetic field exposure in British railway environments." Thesis, University of Bristol, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.555811.

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Exposure to extremely low frequency magnetic fields has been investigated in relation to various health effects. In the past, epidemiological studies have focused on residential and occupational exposures. The time spent commuting to work may not be insignificant, therefore any exposures acquired during those periods may have an effect on the strength of association. Given that millions of train journeys are made in Britain every year, extremely low frequency and static magnetic field measurements were made on six types of British trains and on five station platforms in order to characterise p
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Books on the topic "ELF (Extremely low frequency)"

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Hitchcock, R. Timothy. Extremely low frequency (ELF) electric and magnetic fields \. AIHA, 1995.

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Walborg, Earl F. Extremely low frequency electromagnetic fields and cancer: Focus on tumor initiation, promotion, and progression. NEMA, 1991.

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An evaluation of the U.S. Navy's extremely low frequency communications system ecological monitoring program. National Academy Press, 1997.

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Blomme, Chris G. Operant detection of extremely low frequency (ELF) magnetic fields by the domestic pigeon Columba livia Gmelin. s.n.], 1986.

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Andres, Peratta, ed. Modelling the human body exposure to ELF electric fields. WIT, 2010.

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Surkov, Vadim, and Masashi Hayakawa. Ultra and Extremely Low Frequency Electromagnetic Fields. Springer Japan, 2014. http://dx.doi.org/10.1007/978-4-431-54367-1.

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author, Hayakawa Masashi, ed. Ultra and extremely low frequency electromagnetic fields. Springer, 2014.

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Ivo, Doležel, and Karban Pavel 1979-, eds. Integral methods in low-frequency electromagnetics. Wiley, 2009.

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Health and low-frequency electromagnetic fields. Yale University Press, 1994.

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White, Anthony G. Hazards of extra-low frequency electrical and magnetic fields: A selected bibliography. Vance Bibliographies, 1990.

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Book chapters on the topic "ELF (Extremely low frequency)"

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Wood, Andrew. "Extremely Low-Frequency (ELF) Guidelines." In Non-ionizing Radiation Protection. John Wiley & Sons, Inc., 2017. http://dx.doi.org/10.1002/9781119284673.ch18.

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Cleary, Stephen F., Li-Ming Liu, and Guanghui Cao. "Cellular Effects of Extremely Low Frequency (ELF) Electromagnetic Fields." In Charge and Field Effects in Biosystems—3. Birkhäuser Boston, 1992. http://dx.doi.org/10.1007/978-1-4615-9837-4_17.

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Kaune, William T., and Richard D. Phillips. "Dosimetry for Extremely Low-Frequency Electric Fields." In Biological Effects and Dosimetry of Static and ELF Electromagnetic Fields. Springer US, 1985. http://dx.doi.org/10.1007/978-1-4613-2099-9_9.

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Wood, Andrew. "Possible Low-Level Extremely Low-Frequency (ELF) Electric and Magnetic Field Effects?" In Non-ionizing Radiation Protection. John Wiley & Sons, Inc., 2017. http://dx.doi.org/10.1002/9781119284673.ch21.

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Anderson, Larry E. "Investigation of Exposure to Extremely Low Frequency (ELF) Magnetic and Electric Fields." In Biological Effects of Magnetic and Electromagnetic Fields. Springer US, 1996. http://dx.doi.org/10.1007/978-0-585-31661-1_9.

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Galonja, Tamara, Slavka Gajin, Zorica Svircev, Violeta Trivunovic, Neda Pekaric-Nadj, and Ilija Arsenic. "The Influence of Extremely Low Frequency (ELF) Electromagnetic (EM) Fields on Freshwater Bacterioplankton Communities." In Electricity and Magnetism in Biology and Medicine. Springer US, 1999. http://dx.doi.org/10.1007/978-1-4615-4867-6_120.

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Tukimin, R., and W. N. L. Mahadi. "A Study of Extremely Low Frequency Electromagnetic Field (ELF EMF) Exposure Levels at Multi Storey Apartment." In IFMBE Proceedings. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-21729-6_67.

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Ahmed, I., V. Vojisavljevic, and E. Pirogova. "Design and Development of an Extremely Low Frequency (ELF) Pulsed Electromagnetic Field (PEMF) System for Wound Healing Promotion." In IFMBE Proceedings. Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-29305-4_8.

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Conti, P., G. E. Gigante, M. G. Cifone, E. Alesse, M. Reale, and P. U. Angeletti. "Effects Induced “in vitro” by Extremely Low Frequency Electromagnetic Fields (E.L.F.) on Blastogenesis of Human Lymphocytes and on Thromboxane B-2-Release by Ionophore-Stimulated Neutrophils." In Biological Effects and Dosimetry of Static and ELF Electromagnetic Fields. Springer US, 1985. http://dx.doi.org/10.1007/978-1-4613-2099-9_20.

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Weik, Martin H. "extremely low frequency." In Computer Science and Communications Dictionary. Springer US, 2000. http://dx.doi.org/10.1007/1-4020-0613-6_6694.

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Conference papers on the topic "ELF (Extremely low frequency)"

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Byrd, Kenneth A., Harold Szu, and Michael J. Wardlaw. "Towards non-cooperative standoff biometrics using extremely low frequency (ELF) processing." In SPIE Defense, Security, and Sensing, edited by Harold H. Szu and F. Jack Agee. SPIE, 2009. http://dx.doi.org/10.1117/12.820829.

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Marinelli, Bersani, Ognibene, Matteucci, Santi, and Maraldi. "Effect Of The Extremely Low Frequency (elf) Magnetic Fields On Cell Membrane." In Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE, 1992. http://dx.doi.org/10.1109/iembs.1992.589735.

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Marinelli, F., F. Bersani, A. Ognibene, A. Matteucci, S. Santi, and N. M. Maraldi. "Effect of the extremely low frequency (ELF) magnetic fields on cell membrane." In 1992 14th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE, 1992. http://dx.doi.org/10.1109/iembs.1992.5760979.

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McLeod, Rubin, Donahue, Guilak, and Mase. "Characterization Of The Extremely Low Frequency (ELF) Electric Field Interactions With Living Tissue." In Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE, 1992. http://dx.doi.org/10.1109/iembs.1992.593837.

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McLeod, Kenneth J., Clinton T. Rubin, Henry J. Donahue, Farshid Guilak, and Carol A. Mase. "Characterization of the extremely low frequency (ELF) electric field interactions with living tissue." In 1992 14th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE, 1992. http://dx.doi.org/10.1109/iembs.1992.5761736.

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Rangata, R., K. Ouahada, and S. Chinnappen. "Analog signal acquisition and transmission within extremely low and very low frequency bands (ELF and VLF)." In AFRICON 2013. IEEE, 2013. http://dx.doi.org/10.1109/afrcon.2013.6757637.

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Tukimin, R., W. N. L. Mahadi, M. Y. M. Ali, and M. N. M. Thari. "Extremely low frequency electromagnetic field (ELF EMF) survey of residential areas around transmission lines." In 2007 Asia-Pacific Conference on Applied Electromagnetics (APACE). IEEE, 2007. http://dx.doi.org/10.1109/apace.2007.4603908.

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Hull, David M., and Stephen J. Vinci. "Passive aircraft detection and noncooperative helicopter identification using extremely low-frequency (ELF) electric field sensors." In Enabling Technologies for Law Enforcement and Security, edited by A. Trent DePersia and John J. Pennella. SPIE, 1998. http://dx.doi.org/10.1117/12.334982.

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Akram, M., K. Crowley, and M. Wilkenfeld. "330. Evaluation of Employee Exposure to Extremely Low Frequency (ELF) Radiation in an Office Environment." In AIHce 2002. AIHA, 2002. http://dx.doi.org/10.3320/1.2766269.

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Akbar-Khanzadeh, F., and T. Carroll. "17. Exposures of Electricians of a Power Generation Facility to Extremely Low Frequency Magnetic Fields (ELF MF)." In AIHce 1997 - Taking Responsibility...Building Tomorrow's Profession Papers. AIHA, 1999. http://dx.doi.org/10.3320/1.2765302.

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Reports on the topic "ELF (Extremely low frequency)"

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Casey, Joseph P. Extremely Low Frequency (ELF) Propagation Formulas for Dipole Sources Radiating in a Spherical Earth-Ionosphere Waveguide. Defense Technical Information Center, 2002. http://dx.doi.org/10.21236/ada405897.

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Koons, Harry C. An ELF (Extremely-Low-Frequency) Transmitter Experiment for the Space Shuttle. (The NASC-201 (Naval Air Space Command) Experiment). Volume 1. Defense Technical Information Center, 1986. http://dx.doi.org/10.21236/ada178237.

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Hiebert, D. G. Office worker exposure to extremely low frequency magnetic fields. Office of Scientific and Technical Information (OSTI), 1994. http://dx.doi.org/10.2172/672124.

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Baldi, Emilio. The Use of Extremely Low Frequencies (ELF) in Pulsed Form (PELF) for Therapeutic Use: A Pilot Study. Defense Technical Information Center, 2001. http://dx.doi.org/10.21236/ada409410.

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Sweeney, J. J. An investigation of the usefulness of extremely low-frequency electromagnetic measurements for treaty verification. Office of Scientific and Technical Information (OSTI), 1989. http://dx.doi.org/10.2172/6294530.

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