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Journal articles on the topic 'Secondary electromagnetic radiation'

Author: Grafiati

Published: 30 May 2022

Last updated: 31 July 2025

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1

Bilki, Burak, Kamuran Dilsiz, Hasan Ogul, et al. "Secondary Emission Calorimetry." Instruments 6, no. 4 (2022): 48. http://dx.doi.org/10.3390/instruments6040048.

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Electromagnetic calorimetry in high-radiation environments, e.g., forward regions of lepton and hadron collider detectors, is quite challenging. Although total absorption crystal calorimeters have superior performance as electromagnetic calorimeters, the availability and the cost of the radiation-hard crystals are the limiting factors as radiation-tolerant implementations. Sampling calorimeters utilizing silicon sensors as the active media are also favorable in terms of performance but are challenged by high-radiation environments. In order to provide a solution for such implementations, we de

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2

Balabin, Yuriy, Aleksey Germanenko, Boris Gvozdevsky, Evgeniy Maurchev, and Evgeniya Mikhalko. "Precipitation-related increase events of the electromagnetic component of secondary cosmic rays: Spectral analysis." Solar-Terrestrial Physics 9, no. 2 (2023): 37–47. http://dx.doi.org/10.12737/stp-92202305.

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We report the measurement results of differential spectra of electromagnetic radiation in the range 0.1–4 MeV, which occurs in the atmosphere as a component of secondary cosmic rays. Spectral monitoring was performed using a spectrometer based on the Nai (TL) crystal in 2022–2023. The main purpose of the measurements was to determine spectral characteristics of the electromagnetic radiation during increase events, when the electromagnetic radiation flux from the atmosphere rises by tens of percent with respect to the background level. From a thorough analysis of the spectra of many dozens of e

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Gavrilas, Leonidas, and Konstantinos T. Kotsis. "Assessing elementary understanding of electromagnetic radiation and its implementation in wireless technologies among pre-service teachers." International Journal of Professional Development, Learners and Learning 5, no. 2 (2023): ep2309. http://dx.doi.org/10.30935/ijpdll/13191.

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The research on the knowledge and perceptions of electromagnetic radiation among teachers who will teach these topics in primary and secondary education is relatively limited. According to existing literature, electromagnetic radiation is a challenging and complex concept for students to comprehend. Despite the widespread use of radiation-emitting devices like cell phones and wireless networks, the misuse of the term “radiation” has resulted in various misconceptions. This study aimed to examine the elementary understanding of electromagnetic radiation and its application in wireless technolog

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Craven, R. M., I. R. Smith, and B. M. Novac. "Electromagnetic Radiation from a Tesla Transformer." Applied Physics Research 9, no. 2 (2017): 53. http://dx.doi.org/10.5539/apr.v9n2p53.

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In addition to the resistive and dielectric losses that inevitably occur near the secondary winding of a Tesla transformer, electromagnetic radiation into the far field also contributes to the overall power losses and thereby reduces both the effective quality factor (Q) and the power transfer efficiency of this winding. A short study of these effects for a laboratory scale transformer has shown that, in addition to its Q-factor being considerably reduced, the secondary winding is an extremely inefficient radiator of electromagnetic energy.

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Penialosa Ovalies, D. I., O. V. Boiprav, M. V. Tumilovich, A. V. Gusinsky, and P. I. Baltrukovich. "Substantiation of the Possibility to Use the Electromagnetic Shields Based on Powdered Aluminum Oxides to Reduce the Electromagnetic Radiation Energy of Electronic Devices." Doklady BGUIR 20, no. 7 (2022): 48–55. http://dx.doi.org/10.35596/1729-7648-2022-20-7-48-55.

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The article introduces the results of the experimental substantiation of the possibility to use the electromagnetic shields based on powdered aluminum oxides to reduce the electromagnetic radiation energy introduced by electronic devices. To achieve this goal, a methodology has been developed for assessing the effect of materials on the electromagnetic radiation level of electronic devices, and a methodology for estimating the radius of the controlled zone of the secondary electromagnetic radiation of computer equipment has been systematized. In accordance with the indicated methods, the study

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Balabin, Yuriy, Aleksey Germanenko, Boris Gvozdevsky, Evgeniy Maurchev, and Evgeniya Mikhalko. "Precipitation-related increase events of the electromagnetic component of secondary cosmic rays: Spectral analysis." Solnechno-Zemnaya Fizika 9, no. 2 (2023): 41–51. http://dx.doi.org/10.12737/szf-92202305.

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We report the measurement results of differential spectra of electromagnetic radiation in the range 0.1–4 MeV, which occurs in the atmosphere as a component of secondary cosmic rays. Spectral monitoring was performed using a spectrometer based on the Nai (TL) crystal in 2022–2023. The main purpose of the measurements was to determine spectral characteristics of the electromagnetic radiation during increase events, when the electromagnetic radiation flux from the atmosphere rises by tens of percent with respect to the background level. From a thorough analysis of the spectra of many dozens of e

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7

Jevtić, Radoje, and Ivana Janković. "Exposure of the students of the secondary school of electrical engineering "Nikola Tesla" to wireless electromagnetic radiation." Zdravstvena zastita 51, no. 4 (2022): 106–23. http://dx.doi.org/10.5937/zdravzast2204106j.

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Introduction/Aim: Wireless electromagnetic radiation from routers is an everyday occurrence in the life and work of modern man. They are widely used in many professional, public and domestic facilities, which means that people of all ages can be constantly exposed to electromagnetic radiation from these devices. The aim of this study was to determine the electric field strength, the magnetic field strength, and the electromagnetic exposure of students in different laboratories of the Secondary School "Nikola Tesla", depending on the type of routers installed in them, as well as to check some o

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8

Abdulhadi, H. D. A., Е. А. A. Almashat, O. V. Boiprav, V. A. Bogush, and A. M. Prudnik. "ELECTROMAGNETIC AND SOUND INSULATION PROPERTIES OF COMBINED SHIELDS BASED ON THE NEEDLE-PUNCHING MATERIAL AND FRAGMENTS OF ALUMINUM FOIL." Doklady BGUIR, no. 1 (March 6, 2020): 89–95. http://dx.doi.org/10.35596/1729-7648-2020-18-1-89-95.

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A method for creating the electromagnetic radiation shields, which consists in fixing fragments of aluminum foil on the surface of a needle-punched carbon-containing material has been proposed. In accordance to the proposed method the shield samples have been made. The fragments of the used aluminium foil were in the form of rectangles or half rings the overall dimensions of which didn't exceed 20 mm. Using an automated meter of transmission and reflection coefficients SNA 0.01–18, shielding characteristics in the frequency range 0.7–17 GHz of the shield samples made in accordance with the pro

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9

Xu, Yan, He Xu, Yu Kun Luan, X. Z. Gao, and Kai Xue. "Radiation Characteristics of Heat Sink in Propulsive Wheel of Mobile Robots." Applied Mechanics and Materials 494-495 (February 2014): 1294–97. http://dx.doi.org/10.4028/www.scientific.net/amm.494-495.1294.

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Electromagnetic interference easily appears in the propulsive wheel - a key component of the mobile robots, because internal space of propulsive wheel is very small, there are numerous electronic devices, and signal communication is complex. So electromagnetic shielding is very important for the propulsive wheel. In this paper, a wheel model and an equivalent source model of electromagnetic interference of the wheel were developed based on considerations of the internal electromagnetic properties. At the same time, a secondary source of electromagnetic interference is formed by heat sink. Henc

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BOBROVSKIKH, ALEKSEY, ALEXANDER GUREEV, VLADIMIR LOS, and ALEKSEY MARKOV. "CONSIDERATION OF MULTIPATH IN MODELING THE FIELD OF SECONDARY ELECTROMAGNETIC RADIATION ON INFORMATIZATION OBJECTS." Computational Nanotechnology 9, no. 4 (2022): 63–69. http://dx.doi.org/10.33693/2313-223x-2022-9-4-63-69.

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The paper considers the features of the formation of the resulting field of spurious electromagnetic radiation at informatization objects, taking into account the multipath propagation of radio waves, evaluates the achievable error values for determining the attenuation coefficient using known methods for determining the attenuation of the field of spurious electromagnetic radiation based on a deterministic model of radio wave propagation inside the building. The need for a significant refinement of the method for determining the attenuation coefficient is shown, since, in a known form, it is

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Lu, Wenchao, Jiandong Duan, Lin Cheng, Jiangping Lu, and Xiaotong Du. "Analysis of the Influence of the Breaking Radiation Magnetic Field of a 10 kV Intelligent Circuit Breaker on an Electronic Transformer." Sensors 21, no. 23 (2021): 7800. http://dx.doi.org/10.3390/s21237800.

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The development of the smart grid requires the distribution switch to not be limited to the original breaking function. More functional requirements lead to more complex switch structures, especially the intelligent processing unit on the secondary side. A technology called primary and secondary integration optimizes the structure of the switch, which greatly increases the intelligence level of the switch, but also has disadvantages. The secondary intelligent unit is arranged close to the primary high-voltage electromagnetic environment, and the distribution switch is prone to failure due to e

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Tian, Baojiang, Pei Guo, Xingwei Du, et al. "Interference Characteristics of Electromagnetic Transient Overvoltage on Secondary Equipment of UHV Fixed Series Capacitors." Energies 17, no. 21 (2024): 5495. http://dx.doi.org/10.3390/en17215495.

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This manuscript addresses the issue of electromagnetic radiation interference experienced by secondary equipment in ultra-high voltage (UHV) fixed series capacitors (FSCs) under electromagnetic transient overvoltage conditions, which cannot be easily determined. To tackle this, a simulation and analysis method for the electromagnetic interference characteristics of secondary equipment is proposed. First, a primary system simulation model of UHV FSC is established, including modeling the platform’s multi-conductor system. The electromagnetic transient overvoltage signals between the low-voltage

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13

Cheng, Lin, Zeyu He, Jian Liu, et al. "Research on Radiated Disturbance to Secondary Cable Caused by Disconnector Switching Operation." Energies 15, no. 5 (2022): 1849. http://dx.doi.org/10.3390/en15051849.

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With the development of smart grids, the application of localized relay protection devices has greatly reduced the distance between the secondary equipment and the primary equipment. The secondary equipment will be in a more complex electromagnetic environment during the operation of the GIS disconnector. The present study takes the multi-path electromagnetic disturbance on the secondary cable caused by the disconnector switching operation of the domestic 1000 kV ultra-high voltage GIS test circuit as the research background, solves the field-line coupling problem based on the finite integral

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14

Wang, Lei, Yuanyuan Cheng, Wenxia Wang та ін. "Effects of Terahertz Radiation on the Aggregation of Alzheimer’s Aβ42 Peptide". International Journal of Molecular Sciences 24, № 5 (2023): 5039. http://dx.doi.org/10.3390/ijms24055039.

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The pathophysiology of Alzheimer’s disease is thought to be directly linked to the abnormal aggregation of β-amyloid (Aβ) in the nervous system as a common neurodegenerative disease. Consequently, researchers in many areas are actively looking for factors that affect Aβ aggregation. Numerous investigations have demonstrated that, in addition to chemical induction of Aβ aggregation, electromagnetic radiation may also affect Aβ aggregation. Terahertz waves are an emerging form of non-ionizing radiation that has the potential to affect the secondary bonding networks of biological systems, which i

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15

Antipov, D. A., and A. A. Shelupanov. "Research of the direction of secondary electromagnetic radiation from a personal computer." Proceedings of Tomsk State University of Control Systems and Radioelectronics 21, no. 2 (2018): 33–37. http://dx.doi.org/10.21293/1818-0442-2018-21-2-33-37.

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Pan, Yue, and Minan Tang. "Characterization of relay protection equipment and electromagnetic disturbance in high-voltage substations." Journal of Physics: Conference Series 2960, no. 1 (2025): 012001. https://doi.org/10.1088/1742-6596/2960/1/012001.

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Abstract With the increase of substation voltage level and the local installation of relay protection equipment, the electromagnetic disturbance in the working environment of relay protection equipment is more complex and intense. Firstly, this paper analyzes the characteristics of steady-state electromagnetic disturbance sources and transient electromagnetic disturbance sources in high-voltage substations. Secondly, conductive electromagnetic disturbance is generated by Multisim by building an electric fast transient pulse group generating circuit. Finally, the radiation coupling simulation m

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17

Bakhtiiarov, Denys I., Oleksandr Y. Lavrynenko, Nataliia O. Lishchynovska, and Oleg O. Komarnytskyi. "Methods of evaluation and forecasting of levels of electromagnetic radiation in urban environments." European Scientific e-Journal 6, no. 6 (2) (2020): 40–54. https://doi.org/10.47451/inn2020-12-001.

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This article is devoted to the decision of the actual scientific and applied problem which consists in the development of a method of definition of levels of the basic and secondary electromagnetic radiations in the urban environments at the expense of perfection of models of their distribution. The necessity in the increased efficiency of use of devices of monitoring of an electromagnetic situation on the basis of the analysis of features of distribution of electromagnetic radiations in the urban environment and lacks of the existing mathematical device for their description is proved. The na

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18

Mordachev, V. I. "Characteristics of the electromagnetic environment created by radiations of user equipment of ...4G/5G/6G cellular (mobile) communications in buildings." Doklady BGUIR 19, no. 6 (2021): 42–50. http://dx.doi.org/10.35596/1729-7648-2021-19-6-42-50.

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The goal of the work is to substantiate the technique for assessing the intensity of electromagnetic background generated by the set of radiating user devices of mobile communications in multi-storey buildings. For known empirical models of radio wave propagation in buildings, expressions are obtained for the probability distribution density and expectation of the power flux density of electromagnetic fields generated inside building by these sources from various parts of the building's interior space: from the near zone with radio wave propagation conditions similar to free space; and from th

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19

Melnikov, A. A. "Ignition Systems with Automatic Control of the Quality of Fuel Combustion in the Cylinders of Combustion Engines." Izvestiya MGTU MAMI 4, no. 1 (2010): 25–34. http://dx.doi.org/10.17816/2074-0530-69540.

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Decrease of secondary pressure on the ignition coil or fuel quality degradation leads to ignition-miss. For their elimination it is offered to add a contour which operates the quality of fuel combustion. Information for the management contour arrives from the gauges of ionic currents and electromagnetic radiation.

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20

Zabolotny, V. I., and V. I. Perepadia. "FEATURES OF VIDEO PULSE PARAMETERS SIMULATION FOR STUDYING SPECTRA OF SECONDARY ELECTROMAGNETIC RADIATION." Telecommunications and Radio Engineering 77, no. 16 (2018): 1463–70. http://dx.doi.org/10.1615/telecomradeng.v77.i16.50.

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Zabolotny, V. I., and V. I. Perepadia. "Features of video-pulse parameters simulation for studying spectra of secondary electromagnetic radiation." Radiotekhnika, no. 193 (May 15, 2018): 164–68. http://dx.doi.org/10.30837/rt.2018.2.193.17.

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Features of video-pulse parameters simulation for studying spectra of secondary electromagnetic radiation are described on the basis of the Monte-Carlo statistical test method. It is established that the key parameters in terms of the possibility of information leakage are: the length of the smooth transition of the signal between the linear parts and the length of the approximation of the linear component of the pulse front, which determine the shape of the signal. Using a probabilistic approach, a method for determining the density distribution of the probability of electric field intensity

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22

Somjaimak, A., K. Prakrajang, S. Sarapirom, S. Rimjaem, and K. Janpong. "Study of plasma activated water and secondary effects on water using gamma radiation with FTIR in seeds germinations." Journal of Physics: Conference Series 2431, no. 1 (2023): 012013. http://dx.doi.org/10.1088/1742-6596/2431/1/012013.

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Abstract Plasma activated water (PAW) and gamma radiation have been arduously used in many horticultural implementations; especially in increasing plant germination rates and general growth advancements. Attention has to be paid to both the effect of PAW and gamma radiation. The detailed chemical composition and appearance of tap water and distilled water that has been stimulated by plasma and gamma radiation on seed germination using Fourier transform infrared spectroscopy (FTIR) technique and optical emission spectroscopy (OES) are to be analysed. The result found that one important property

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23

Brandenburg, Axel, and Nousaba Nasrin Protiti. "Electromagnetic Conversion into Kinetic and Thermal Energies." Entropy 25, no. 9 (2023): 1270. http://dx.doi.org/10.3390/e25091270.

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The conversion of electromagnetic energy into magnetohydrodynamic energy occurs when the electric conductivity changes from negligible to finite values. This process is relevant during the epoch of reheating in the early universe at the end of inflation and before the emergence of the radiation-dominated era. We find that the conversion into kinetic and thermal energies is primarily the result of electric energy dissipation, while magnetic energy only plays a secondary role in this process. This means that since electric energy dominates over magnetic energy during inflation and reheating, sig

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Kikhtenko, I. M., Yu M. Khvorostenko, and Ye M. Primakova. "Quantitative assessment of the results of lymphovenous edema therapy in patients after combined treatment of breast cancer." Український радіологічний та онкологічний журнал 32, no. 2 (2024): 275–84. http://dx.doi.org/10.46879/ukroj.2.2024.275-284.

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Background. Secondary lymphovenous edema of the hand is one of the most common and serious complications of specialized treatment of breast cancer. Purpose – to quantify the dynamics of treatment of lymphovenous edema of the hand by measuring its volume using the proposed device model. Materials and methods. In 23 patients, the type of radiation injury was determined by the radionuclide method, the degree of secondary hand edema was determined using a number of designed devices. Treatment was performed by irradiating the areas of radiation fibrosis and the corresponding lymphatic collectors wi

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Wang, Shujing, Yue Zhu, Volodymyr Bondarenko, Andrii Dreus, Jinqiang Liang, and Baochang Liu. "Design and numerical simulation of a microwave antenna with coaxial slots for preventing secondary formation of gas hydrate." E3S Web of Conferences 230 (2021): 01008. http://dx.doi.org/10.1051/e3sconf/202123001008.

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Gas hydrate is a new clean energy resource with polar molecule. However due to the change of temperature and pressure during extraction process, there will be secondary formation of gas hydrate, which usually occurs in reservoirs or pipelines near the wellhead. It is significance to prevent secondary formation of hydrate because of safety issues or production rate reduction caused by it. Theoretically, microwave heating can accelerate the decomposition of gas hydrate. Therefore, it is possible to use microwave radiation to prevent secondary formation of hydrate. In this paper, a microwave ante

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Горелик, В. С., А. В. Скрабатун та Dongxue Bi. "Микрокристаллические алмазные порошки как перспективные объекты для генерации многочастотного вынужденного комбинационного рассеяния-=SUP=-*-=/SUP=-". Журнал технической физики 126, № 5 (2019): 614. http://dx.doi.org/10.21883/os.2019.05.47661.10-19.

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The laws of Raman scattering in microcrystalline diamond powders are investigated depending on the size of diamond microresonators in the range of 1–600 mkm. The observed effect of the anomalously high intensity of spontaneous Raman scattering in diamond microresonators is explained by the “trapping” of electromagnetic radiation in them, the wavelength of which is smaller than the size of diamond microcrystals. Due to the "trapping" of photons in diamond microresonators, the density of electromagnetic energy for excitation and secondary radiation increases. The high quality factor of the funda

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Veklenko, Boris A. "Coherent Stimulated Radiation, Coherent Spontaneous Radiation and Coupled Photon Pairs in Non-Uniform Thermally Excited Gaseous Media: Calculation Procedure." Light & Engineering, no. 03-2022 (June 2022): 61–67. http://dx.doi.org/10.33383/2021-121.

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This work continues the author’s study of the processes of interaction between a quantum electromagnetic field and a spatially non-uniform gaseous medium [1, 5]. Previously unknown optical effects caused by consideration of high-order quantum correlators were discovered. This is caused by the problem of calculation of high-order photonic correlators starting from the fourth order, which appears when the interaction between the quantum electromagnetic field is described using the Feynman diagrams, According to T.A. Matsubara’s technique applied nowadays, these correlators are just neglected. Th

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Mahrer, Kenneth D., and David F. List. "Radio frequency electromagnetic tunnel detection and delineation at the Otay Mesa site." GEOPHYSICS 60, no. 2 (1995): 413–22. http://dx.doi.org/10.1190/1.1443778.

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Using three radio frequency electromagnetic field procedures: surface‐to‐surface, borehole‐to‐surface, and borehole‐to‐borehole, we detected and delineated a horizontal, 2 1/2 × 5-ft (3/4 × 1 1/2-m), and 45-ft (14-m) deep tunnel crossing the US‐Mexico border near Otay Mesa east of San Diego, CA. We used continuous monochromatic signals to delineate the tunnel by (1) locating and identifying signature variations in signal transmissivity from the tunnel void in the local rock (sandstone) and (2) inducing and mapping the (secondary) radiation from electrical cabling within and running the length

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Serkov, А., V. Breslavets, Yu Breslavets, and I. Yakovenko. "INFLUENCE OF ELECTROMAGNETIC RADIATION ON RESISTANCE OF SEMICONDUCTOR DEVICES." Системи управління, навігації та зв’язку. Збірник наукових праць 1, no. 71 (2023): 177–81. http://dx.doi.org/10.26906/sunz.2023.1.177.

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The subject matter is the processes of analysis and mechanisms of appearance of instabilities of natural vibrations of semiconductor structures., due to their interaction with flows of charged particles under the influence of external electromagnetic radiation. It is shown that the influence of pulsed electromagnetic radiation is accompanied by the appearance of currents in the conductive elements of products that are capable of exciting natural oscillations of semiconductor components and are the cause of failures of radio products. The aim is to develop the theory of collisionless damping of

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Guo, Xin, Li Liu, Naixiu Ding, and Guangye Liu. "Transformation from Electromagnetic Inflection to Absorption of Silicone Rubber and Accordion-Shaped Ti3C2MXene Composites by Highly Electric Conductive Multi-Walled Carbon Nanotubes." Polymers 15, no. 10 (2023): 2332. http://dx.doi.org/10.3390/polym15102332.

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Electromagnetic (EM) pollution becomes more penetrating in daily life and work due to more convenience provided by multi-electrical devices, as does secondary pollution caused by electromagnetic reflection. EM wave absorption material with less reflection is a good solution to absorb unavoidable EM radiation or reduce it from the source. Filled with two-dimensional Ti3SiC2MXenes, silicone rubber (SR)composite demonstrated a good electromagnetic shielding effectiveness of 20 dB in the X band by melt-mixing processes for good conductivity of more than 10−3 S/cm and displayed dielectric propertie

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ROMERO, GUSTAVO E., DANIELA PÉREZ, and GABRIELA S. VILA. "SUPERMASSIVE BLACK HOLE BINARIES AT HIGH ENERGIES." International Journal of Modern Physics: Conference Series 28 (January 2014): 1460183. http://dx.doi.org/10.1142/s2010194514601835.

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An accretion disk around a supermassive black hole may be strongly perturbed by the presence of a secondary black hole. Recent simulations have shown that, under certain conditions, the tidal torques exerted by the secondary black hole may open an annular gap in the disk. In this regime, matter "overflows" across the secondary's orbit to accrete onto the primary and may feed a pair of relativistic jets. In this work we study the radiative properties of a binary system of supermassive black holes, assuming that a relativistic jet is launched from the primary and the migration of the secondary a

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Tadevosyan, A. A. "EFFECT OF ATHERMAL MILLIMETER ELECTROMAGNETIC RADIATION ON DNA STRUCTURE OF TUMOR TISSUE $IN~VIVO$." Proceedings of the YSU A: Physical and Mathematical Sciences 51, no. 3 (244) (2017): 266–68. http://dx.doi.org/10.46991/pysu:a/2017.51.3.266.

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$In~vivo$ effect of non thermal millimeter electromagnetic waves (MEMWs) with $50.3~GHz$ (which coincides with resonant frequencies of oscillations of water molecular structures) and $48.3~GHz$ (which does not coincide with resonant frequencies) frequencies on DNA primary and secondary structures of liver of healthy rats as well as Sarcoma-45 tumor carrying rats has been studied. It was shown, that under the effect of MEMWs with $50.3~GHz$ during $60~min$, the content of 5-methylcitosine, the melting parameters of DNA of Sarcoma-45 tumors changed and approached to respective values of DNA extr

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Solano, Víctor Yucra. "Processing of domestic and wastewater by solar radiation and electromagnetic pulsing to obtain a high rate of useful recycling for the benefit of neighborhoods or small communities." South Florida Journal of Development 3, no. 3 (2022): 3472–88. http://dx.doi.org/10.46932/sfjdv3n3-035.

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The general purpose of this experimental project is the recovery of water for secondary use from domestic water volumes coming from sources such as kitchen, shower, washing machine, so that through a system of solar radiation, condensation and magnetic radiation it can be purified to an important degree. Main Objective. To obtain heat levels or solar radiation by means of the lens system for incidence on the tubular radiator containing waste water for evaporation and condensation and also processed by pulsed magnetization.

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VIEYRO, FLORENCIA L., GUSTAVO E. ROMERO, and GABRIELA S. VILA. "NONTHERMAL RADIATION FROM CYGNUS X-1 CORONA." International Journal of Modern Physics D 19, no. 06 (2010): 783–89. http://dx.doi.org/10.1142/s0218271810016804.

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Cygnus X-1 was the first X–ray source widely accepted to be a black hole candidate, and remains among the most studied astronomical objects in its class. The detection of nonthermal radio, hard X–rays and gamma-rays reveals the fact that this kind of objects are capable of accelerating particles up to very high energies. In order to explain the electromagnetic emission from Cygnus X-1 in the low-hard state we present a model of a black hole corona with both relativistic lepton and hadron content. We characterize the corona as a two-temperature hot plasma plus a mixed nonthermal population in w

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Smolyansky, Stanislav A., Anatolii D. Panferov, David B. Blaschke, and Narine T. Gevorgyan. "Kinetic Equation Approach to Graphene in Strong External Fields." Particles 3, no. 2 (2020): 456–76. http://dx.doi.org/10.3390/particles3020032.

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The report presents the results of using the nonperturbative kinetic approach to describe the excitation of plasma oscillations in a graphene monolayer. As examples the constant electric field as well as an electric field of short high-frequency pulses are considered. The dependence of the induced conduction and polarization currents characteristics on the pulse intensity, pulse duration, and polarization is investigated. The characteristics of secondary electromagnetic radiation resulting from the alternating currents is investigated. The nonlinear response to the external electric field char

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Zhyla, O., та N. Stognii. "SPAСETIME ANALYSIS OF AN ELECTROMAGNETIC AIRY PULSE AFTER ITS INTERACTION WITH A PLANAR BOUNDARY IN UNIFORMLY ACCELERATED RELATIVISTIC MOTION". Radio physics and radio astronomy 29, № 4 (2024): 271–80. https://doi.org/10.15407/rpra29.04.271.

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Subject and Purpose. The transformation peculiarities that the electromagnetic pulses get when heading towards a boundary that per- forms uniformly accelerated relativistic motion are the present paper concern. A smooth non-stationarity case when the boundary velocity gradually changes from zero to the pulse velocity value is considered, with a focus on the spacetime distribution and evolution of the electromagnetic Airy pulse field. Methods and methodology. The study and analysis are carried out by the method of Volterra integral equations which can describe electromagnetic wave propagation i

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Sarychev, Andrey K., Andrey V. Ivanov, Igor V. Bykov, et al. "Giant Raman radiation from molecules in a spherical metal shell." Applied photonics 10, no. 7 (2023): 33–53. http://dx.doi.org/10.15593/2411-4375/2023.7.03.

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The work considers an electrodynamic model of radiation from molecules placed in a metal shell. The model qualitatively describes the enhancement of the surface-enhanced Raman scattering (SERS) signal from spherical nanoparticles coated with a thin silver film. The change in the SERS signal is calculated depending on the thickness of the metal nanolayer on top of the spherical particles. The radiating molecular dipole interacts with the metal shell and excites surface plasmons. Plasmonic oscillations reach a maximum when the frequency of the dipole is close to the plasmon resonance of the meta

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Srilakshmi, B., and A. Misra. "Secondary electromagnetic radiation during plastic deformation and crack propagation in uncoated and tin coated plain-carbon steel." Journal of Materials Science 40, no. 23 (2005): 6079–86. http://dx.doi.org/10.1007/s10853-005-1293-4.

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GAN, Zheyuan, Jiangong ZHANG, Jun ZHAO, and ying Lu. "Analysis of passive interference on radio station from AC UHV power." E3S Web of Conferences 64 (2018): 05002. http://dx.doi.org/10.1051/e3sconf/20186405002.

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The problems of Electromagnetic Interference in Airborne Intelligence Radar Stations near the AC UHV Transmission Lines is researched in this paper, which is mainly passive interference. And then analyzed the passive interference of AC UHV lines. It mainly studied the influence of the tower and line on the distance detection performance of the air-to-air intelligence radar of the UHV transmission lines. and integrated the influence of the surface reflection surface, the shadowing effect and the secondary radiation echo interference, Proposed a passive interference protection distance for UHV t

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Dietz, M., R. Beyer, A. Junghans, et al. "Detector Development for a Double-Differential Cross Section Experiment with the Emission of Light Charged Particles from High Energy Neutrons." EPJ Web of Conferences 288 (2023): 01003. http://dx.doi.org/10.1051/epjconf/202328801003.

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Double-differential cross section (DDX) data on the neutron-induced emission of light charged particles are required for assessing the risk of secondary tumors in particle radiation therapy. There are only very few DDX data available for discrete neutron energies close to and above 100 MeV for carbon. A measurement of DDX on carbon is planned at continuous neutron energies from 20 MeV to 200 MeV with particle detector telescopes at n_TOF (CERN). Several detector development criteria and challenges are reported such as coincidence timing and electromagnetic oscillations for high neutron energy

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Khamsalee, Peerasan, Piyaporn Mesawad, and Rangsan Wongsan. "Hybrid Metamaterial for the Secondary Radar Antenna System." Journal of Electromagnetic Engineering and Science 20, no. 3 (2020): 221–33. http://dx.doi.org/10.26866/jees.2020.20.3.221.

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This paper proposes the gain enhancement of dual-band and dual-polarized asymmetric horn antenna for the secondary radar system using hybrid metamaterial techniques. The hybrid metamaterial is comprised of the structures of woodpile electromagnetic bandgap (EBG) for gain enhancement of the primary main beam of the radar system at the operating frequency of 1,300 MHz with horizontal polarization; and the wire medium structure that is placed beside the EBG structure for gain improvement of the identification friend or foe (IFF) main beam, which is operated at the center frequency of 1,060 MHz wi

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Atri, Dimitra, Adrian L. Melott, and Andrew Karam. "Biological radiation dose from secondary particles in a Milky Way gamma-ray burst." International Journal of Astrobiology 13, no. 3 (2013): 224–28. http://dx.doi.org/10.1017/s1473550413000414.

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AbstractGamma-ray bursts (GRBs) are a class of highly energetic explosions emitting radiation in a very short timescale of a few seconds and with a very narrow opening angle. Although, all GRBs observed so far are extragalactic in origin, there is a high probability of a GRB of galactic origin beaming towards the Earth in the past ∼0.5 Gyr. We define the level of catastrophic damage to the biosphere as approximation 100 kJ m−2, based on Thomas et al. (2005a, b). Using results in Melott & Thomas (2011), we estimate the probability of the Earth receiving this fluence from a GRB of any type,

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Gabici, Stefano, and Felix A. Aharonian. "Gamma ray signatures of ultra high energy cosmic ray accelerators: electromagnetic cascade versus synchrotron radiation of secondary electrons." Astrophysics and Space Science 309, no. 1-4 (2007): 465–69. http://dx.doi.org/10.1007/s10509-007-9429-4.

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Riapolov, I. "THE METHOD FOR CALCULATING THE SECONDARY RADIATION CHARACTERISTICS OF THIN CONDUCTORS UNDER A DIELECTRIC SHELL." Випробування та сертифікація, no. 1(7) (April 9, 2025): 88–93. https://doi.org/10.37701/ts.07.2025.10.

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The need to develop a method for calculating the secondary radiation characteristics of thin conductors located under the dielectric shell of an unmanned aerial vehicle is due to the growing requirements for the efficiency of detection and identification of hidden objects in modern conditions. Unmanned aerial vehicles used in military and civilian applications are often equipped with thin conductors that serve as antennas, sensors, or structural elements. Their interaction with electromagnetic radiation is complicated by the presence of a dielectric shell, which affects the nature of the secon

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Razinkov, Sergey N., and Olga E. Razinkova. "Joint application of radar visibility reduction and anti-radar masking technologies to protect aircraft from remote monitoring systems." Physics of Wave Processes and Radio Systems 24, no. 4 (2022): 63–71. http://dx.doi.org/10.18469/1810-3189.2021.24.4.63-71.

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Using spectral energy equations of transmission-reception of wave processes in radio channel with scattering on object and direct radio channel, analysis of energy ratios of information signals and active masking interference at inputs of receivers of remote monitoring systems is carried out. Measures to reduce visibility are aimed at changing the reflective signatures of objects in the interests of reducing the de-masking features contained in secondary electromagnetic radiation to limits that exclude the performance of radar monitoring tasks at established distances and time intervals. Activ

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Papavasileiou, Theodora, Odysseas Kosmas, and Ioannis Sinatkas. "Simulations of Neutrino and Gamma-Ray Production from Relativistic Black-Hole Microquasar Jets." Galaxies 9, no. 3 (2021): 67. http://dx.doi.org/10.3390/galaxies9030067.

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Recently, microquasar jets have aroused the interest of many researchers focusing on the astrophysical plasma outflows and various jet ejections. In this work, we concentrate on the investigation of electromagnetic radiation and particle emissions from the jets of stellar black hole binary systems characterized by the hadronic content in their jets. Such emissions are reliably described within the context of relativistic magneto-hydrodynamics. Our model calculations are based on the Fermi acceleration mechanism through which the primary particles (mainly protons and electrons) of the jet are a

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Frolov, Vladimir L., and Arkady V. Troitsky. "HF-Induced Artificial Injection of Energetic Electrons from the Earth’s Radiation Belt as a Powerful Source for Modification of Ionized and Neutral Components of the Earth’s Atmosphere." Atmosphere 14, no. 5 (2023): 843. http://dx.doi.org/10.3390/atmos14050843.

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It has been found in experiments at the SURA mid-latitude heating facility that the modification of the ionospheric F2 layer by powerful HF radio waves gives rise to artificial injection of energetic electrons from the Earth’s radiation belt into the atmosphere. The spectral, energy, and spatial characteristics of such an injection are presented in the paper. It is significant that the energetic electrons excite the atoms and molecules of the atmosphere to Rydberg energy levels, followed by the transition of the excited atoms and molecules to lower energy states, accompanied by the radiation o

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Borovitsky, V. M., O. E. Hudz, and S. Ye Tuzhansky. "Method for calculating the scattering function of an optical system point." Optoelectronic Information-Power Technologies 41, no. 1 (2022): 69–77. http://dx.doi.org/10.31649/1681-7893-2021-41-1-69-77.

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The article presents a mathematical apparatus for precise calculation of the three-dimensional point spread function (PSF) of a high-aperture optical system. The proposed method is based on the Huygens-Fresnel principle: a spherical wave on the three-dimensional surface of the exit pupil is considered as result of the superposition of elementary secondary point radiation sources. These point sources emit coherent electromagnetic waves with a spherical wave front. They form a certain distribution of generalized complex amplitudes in three-dimensional space near the focus point. This distributio

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Frolov, Alexei M. "Atomic compression of the light element plasma to very high densities." Canadian Journal of Physics 84, no. 9 (2006): 823–32. http://dx.doi.org/10.1139/p06-079.

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The basic atomic principles that are critically important for the workability of actual fusion devices are considered. In particular, we discuss the central idea of atomic compression. The atomic compression means self-compression of the light-element plasma that is placed in an isolated cavity with a very hot plasma of heavy elements. The related radiation-driven ablative implosion of the cold light-element thermonuclear fuel is also briefly reviewed. We also discuss the secondary atomic compression that is used to improve thermonuclear combustion in the light-element plasma. A possibility to

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Lu, Xian Yang, and Min Ji. "Important Problem Analysis and Solution of Whole Bridge Type Switching Power Supply." Advanced Materials Research 971-973 (June 2014): 1005–8. http://dx.doi.org/10.4028/www.scientific.net/amr.971-973.1005.

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With the rapid development of electronic technology, there is a new content of requirements of electronic instrument and equipment, performance is required for more safety and reliable, function are being asked to more powerful, usage is required higher integration degree. The whole bridge type of switch power supply (WBTSPS) is introduced in this article , combined with the specific application in practice, secondary breakdown problems of power switch tube are analyzed, the output of the rectifier and filter circuit are illustrated, the electromagnetic radiation source (EMI) suppression metho

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