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Готові списки джерел за темами / High-intensity radiated fields / Статті в журналах

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Статті в журналах з теми "High-intensity radiated fields"

Автор: Grafiati

Опубліковано: 30 травня 2022

Оновлено: 31 липня 2025

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1

Statman, Joseph I., Vahraz Jamnejad, and Lee Nguyen. "Compliance with High-Intensity Radiated Fields Regulations - Emitter's Perspective." SAE International Journal of Aerospace 5, no. 2 (2012): 311–17. http://dx.doi.org/10.4271/2012-01-2148.

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2

Volkova, Tatiana, and Jing Ou. "General issues of ensuring electromagnetic compatibility of aircraft on-board equipment." E3S Web of Conferences 515 (2024): 02004. http://dx.doi.org/10.1051/e3sconf/202451502004.

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The article examines the effect of electromagnetic interference on the electrical components of the aircraft from the point of view of external and internal electromagnetic environments. The external electromagnetic environment consists of high-intensity radiated fields and lightning strikes. Internal threats can be divided into four types: intersystem, intra-system, induced radiated fields of high intensity and internal transients during a lightning strike. On the basis of the considered impact, the article defines the directions of development in the field of providing electromagnetic compat

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3

Vogel, M. H. "Impact of lightning and high-intensity radiated fields on cables in aircraft." IEEE Electromagnetic Compatibility Magazine 3, no. 2 (2014): 56–61. http://dx.doi.org/10.1109/memc.2014.6849545.

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4

Maceika, Kazimieras Vytautas. "EVALUATION OF THE INTENSITY OF ELECTROMAGNETIC FIELDS RADIATED BY RADAR." Aviation 12, no. 2 (2008): 57–60. http://dx.doi.org/10.3846/1648-7788.2008.12.57-60.

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A method to calculate intensity of electromagnetic fields radiated by powerful radars equipment is proposed in this paper. In such radars exposures the energy may reach very high values of power density during peaks, but relatively low levels of power density averaged over time. Calculations are made for a TA 10MTD radar according to proposed equations. It is shown that an antenna 5 m in height radiates a power flux density at the height of a man's head more than forty times smaller than the level permitted by Lithuanian law ‐ 20.0 μW/cm2. Santrauka Pasiūlyta galingų radiolokatorių elektromagn

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5

Wang, Rui, W. Steven Gray, Oscar R. Gonzalez, and Jorge R. Chavez-Fuentes. "Tracking Performance of Distributed Recoverable Flight Control Systems Subject to High Intensity Radiated Fields." IEEE Transactions on Aerospace and Electronic Systems 49, no. 1 (2013): 521–42. http://dx.doi.org/10.1109/taes.2013.6404118.

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6

Bikkina, Siva Chakra Avinash, and Pappu V. Y. Jayasree. "Investigation of Electromagnetic Shielding for Wire Mesh Composite for Aircraft against Lightning Strike." International Journal of Electrical and Electronics Research 11, no. 2 (2023): 353–58. http://dx.doi.org/10.37391/ijeer.110216.

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Nowadays, fly-wire is only used for flying-related things. All plane controls depend on electronics, but they also must deal with high-intensity radiated fields. This equipment might need an electromagnetic shield to protect it from outside electromagnetic pollution. The current work aims to develop a mesh around the operating equipment to protect and make it work better. AL6061 was used to create a shield with a metal matrix composite. Here three combinations of Metal Matrix Composite (MMCs) were considered to protect from the high-intensity radiated fields. These MMCs are AL6061+10%Al_2 O_3+

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7

Massai, Leonardo, Tom Schatteburg, Jonathan P. Home, and Karan K. Mehta. "Pure circularly polarized light emission from waveguide microring resonators." Applied Physics Letters 121, no. 12 (2022): 121101. http://dx.doi.org/10.1063/5.0109100.

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Circularly polarized light plays a key role in many applications, including spectroscopy, microscopy, and control of atomic systems. Particularly in the latter, high polarization purity is often required. Integrated technologies for atomic control are progressing rapidly, but while integrated photonics can generate fields with pure linear polarization, integrated generation of highly pure circular polarization states has not been addressed. Here, we show that waveguide microring resonators, perturbed with azimuthal gratings and thereby emitting beams carrying optical orbital angular momentum,

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8

Verburg, Samuel A., Efren Fernandez-Grance, and Earl G. Williams. "Acousto-optic sensing for near-field acoustic holography." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 265, no. 2 (2023): 5693–701. http://dx.doi.org/10.3397/in_2022_0839.

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Near-field acoustic holography (NAH) is a very powerful and widely used technique for the study of complex acoustic radiators. NAH enables to quickly understand how a complex source radiates into the medium. The technique is particularly suitable at low frequencies. At high frequencies, a dense transducer interspacing is required, and the measurement microphones can disturb the studied sound field when their size is comparable to the acoustic wavelength. In this study we examine the use of acousto-optic sensing in NAH. Acousto-optic sensing uses light beams as the sensing element, making it po

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9

Verburg, Samuel A., Earl G. Williams, and Efren Fernandez-Grande. "Acousto-optic holography." Journal of the Acoustical Society of America 152, no. 6 (2022): 3790–99. http://dx.doi.org/10.1121/10.0016627.

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Acousto-optic sensing is based on the interaction between sound and light: pressure waves induce density variations, which, in turn, alter the way light propagates in air. Pressure fields are, thus, characterized by measuring changes in light propagation induced by pressure waves. Although acousto-optic sensing provides a way of acquiring acoustic information noninvasively, its widespread application has been hindered by the use of reconstruction methods ill-suited for representing acoustic fields. In this study, an acousto-optic holography method is proposed in which the sound pressure in the

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10

Budumuru, Srinu, and M. Satya Anuradha. "Electromagnetic shielding effectiveness for A16061 metal matrix composite based mesh wire reinforced with Flyash for oblique incidence of EM wave." IOP Conference Series: Materials Science and Engineering 1206, no. 1 (2021): 012025. http://dx.doi.org/10.1088/1757-899x/1206/1/012025.

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Abstract Nowadays, flywire is used exclusively in aeronautical applications. A plane’s complete control is dependent on electronic technology, yet it suffers from high-intensity radiated fields. An electromagnetic shield may be necessary to protect this equipment from external electromagnetic pollution. The current project attempts to create a protective barrier around the operating equipment to enhance its efficiency. AL6061 composite material was used to create a metal matrix mesh shield. It is reinforced with fly ash in various volume fractions, and the electrical characteristics and Shield

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11

Budumuru, Srinu, and Satya Anuradha Mosa. "Analysis of shielding effectiveness and mechanical properties of metal matrix composite AL6061 reinforced with Al2O3 and fly ash for oblique incidence of EM wave." International Journal of Intelligent Computing and Cybernetics 14, no. 3 (2021): 398–411. http://dx.doi.org/10.1108/ijicc-01-2021-0014.

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PurposeFiber-reinforced polymers (FRP) contain critical electrical conductivity for high-intensity radiated fields such as lightning strike susceptibility, electromagnetic energy from radar, airborne radio frequency transmitter. To provide high-intensity radiated field protection (HIRFP) for the electric and electronic aircraft system and defied the EMI effect on it, metal matrix composite was conquered. To provide the dynamic ever-increasing requirement of industries, it is necessary that Al6061 metal matrix composite assisted with AL2O3 and fly ash is used to construct the aircraft to provid

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12

Oparina, Yu S., and A. V. Savilov. "Generation of ultrashort pulses in the THz frequency range." Journal of Physics: Conference Series 2103, no. 1 (2021): 012061. http://dx.doi.org/10.1088/1742-6596/2103/1/012061.

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Abstract There are results for the spontaneous coherent super-radiative undulator emission in the terahertz frequency range from a short (as compared to the wavelength of the radiated wave) dense electron bunch. If the group velocity of the wave is close to the bunch velocity, this is a process of spontaneous radiation followed by amplification of a single wave cycle. Despite the Coulomb repulsion of electrons inside the bunch, its compactness is provided by the compression of the bunch under the action of its own radiation fields. As a result, formation of an ultra-short (several cycles long)

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13

Ribeiro, Jhonatan, Eliton Smith Dos Santos, David Barbosa De Alencar, Manoel Henrique Reis Do Nascimento, and Alyson De Jesus Dos Santos. "Evaluation Of Radiated Electromagnetic Immunity Of The IoT LoRa Protocol." IOSR Journal of Electronics and Communication Engineering 19, no. 6 (2024): 41–47. https://doi.org/10.9790/2834-1906014147.

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Background: With the advancement of Industry 4.0, the automation of industrial processes has shifted from wired communication technologies to wireless networks, enabling greater flexibility, efficiency, and scalability. Technologies such as LoRaWAN and NB-IoT have been widely adopted due to their low energy consumption and long-range communication capabilities, which are essential for industrial applications. However, the increasing density of connected devices has introduced new challenges, particularly related to electromagnetic interference (EMI), which can degrade network performance, caus

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14

Ma, Zhenyang, Hongrui Wei, and Xufeng Yuan. "A Novel Transfer Function Model Based on the Feature Selection Validation Method for Quadrotor Unmanned Aerial Vehicles in High-Intensity Radiated Field Environments." Electronics 14, no. 5 (2025): 976. https://doi.org/10.3390/electronics14050976.

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The growing use of quadrotor unmanned aerial vehicles (UAVs), especially in low-altitude airspace, has raised concerns about their susceptibility to high-intensity radiated fields (HIRFs). These electromagnetic interferences can significantly affect UAV performance and safety. Therefore, understanding the electromagnetic behavior of quadrotor UAVs in HIRF environments and establishing robust airworthiness standards is crucial. In this paper, a novel transfer function model specifically designed for small quadrotor UAVs in HIRF environments is studied, covering the frequency range from 100 MHz

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15

Tortorich, Ryan P., William Morell, Elizabeth Reiner, William Bouillon, and Jin-Woo Choi. "A Study on the Radiated Susceptibility of Printed Circuit Boards and the Effects of Via Fencing." Electronics 10, no. 5 (2021): 539. http://dx.doi.org/10.3390/electronics10050539.

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Because modern electronic systems are likely to be exposed to high intensity radiated fields (HIRF) environments, there is growing interest in understanding how electronic systems are affected by such environments. Backdoor coupling in particular is an area of concern for all electronics, but there is limited understanding about the mechanisms behind backdoor coupling. In this work, we present a study on printed circuit board (PCB) backdoor coupling and the effects of via fencing. Existing work focuses on ideal stackups and indicates that edge radiation is significantly reduced by via fencing.

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16

Tam, Christopher K. W., and M. Salikuddin. "Weakly nonlinear acoustic and shock-wave theory of the noise of advanced high-speed turbopropellers." Journal of Fluid Mechanics 164 (March 1986): 127–54. http://dx.doi.org/10.1017/s0022112086002501.

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An acoustic and shock-wave theory of the noise generated by advanced turbo-propellers operating at supersonic tip helical velocity and high-subsonic cruise Mach number is developed. The theory includes the thickness and loading noise of the highly swept propeller blades. When operating at their design conditions these propellers radiate extremely intense sound waves. Because of the weakly nonlinear propagation effects these high-intensity acoustic disturbances steepen up quickly to form shock waves. In the present theory advantage is taken of the fact that in the blade fixed-rotating-coordinat

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17

Bogey, Christophe. "On noise generation in low Reynolds number temporal round jets at a Mach number of 0.9." Journal of Fluid Mechanics 859 (November 27, 2018): 1022–56. http://dx.doi.org/10.1017/jfm.2018.864.

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Two temporally developing isothermal round jets at a Mach number of 0.9 and Reynolds numbers of 3125 and 12 500 are simulated in order to investigate noise generation in high-subsonic jet flows. Snapshots and statistical properties of the flow and sound fields, including mean, root-mean-square and skewness values, spectra and auto- and cross-correlations of velocity and pressure, are presented. The jet at a Reynolds number of 12 500 develops more rapidly, exhibits more fine turbulent scales and generates more high-frequency acoustic waves than the other. In both cases, however, when the jet po

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18

Dunst, Paul, Tobias Hemsel, Peter Bornmann, Walter Littmann, and Walter Sextro. "Optimization of Ultrasonic Acoustic Standing Wave Systems." Actuators 9, no. 1 (2020): 9. http://dx.doi.org/10.3390/act9010009.

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Ultrasonic acoustic standing wave systems find use in many industrial applications, such as sonochemical reactions, atomization of liquids, ultrasonic cleaning, and spray dry. In most applications, highest possible sound pressure levels are needed to achieve optimum results. Until now, the atomization of liquids is limited to fluids with low viscosity, as systems generating sufficient sound pressure for atomizing fluids with higher viscosities are often not marketable due to their low throughput or high costs. For the production of polymer or metal powders or the dispensing of adhesives, highe

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19

Arun, M., and M. R. Ebenezar Jebarani. "Design of Pattern Synthesis of Nonuniform Amplitude Microstrip Patch Antenna Array." Journal of Nanoelectronics and Optoelectronics 19, no. 12 (2024): 1316–25. https://doi.org/10.1166/jno.2024.3697.

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To address long-distance communication needs, it is sometimes necessary to construct Microstrip Patch antennas with notably directional properties (relatively high gains). Increasing the antenna’s electrical size will achieve this goal. It is possible to increase the antenna’s overall dimensions without increasing the size of its parts by arranging the radiating elements in a specific electrical and geometrical arrangement. The new antenna comprises many pieces and is called an array. The items in an array are usually the same. Vector addition of the fields emitted by the individual elements g

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20

Dorovskikh, Roman, Anna Puzhaykina, Pavel Tertishnikov, Andrey Shalunov, and Victor Nesterov. "Development of specialized disk emitters for the formation of high-intensity ultrasonic fields in gaseous media." Journal of Physics: Conference Series 2573, no. 1 (2023): 012003. http://dx.doi.org/10.1088/1742-6596/2573/1/012003.

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Abstract The article presents various types of emitter designs and schemes of emitting surfaces for the formation of ultrasonic fields with different characteristics and directivity. 4 types of emitters have been developed and their main characteristics have been determined. It has been established that a radiator with a flat frontal surface provides 167 dB and makes it possible to intensify a number of technological processes in the near zone (up to 1 meter), such as coagulation and drying. An emitter with a step-variable surface and predominant radiation of one phase of oscillations makes it

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21

de Ceglia, Domenico, Luca Carletti, Maria Antonietta Vincenti, Costantino De Angelis, and Michael Scalora. "Second-Harmonic Generation in Mie-Resonant GaAs Nanowires." Applied Sciences 9, no. 16 (2019): 3381. http://dx.doi.org/10.3390/app9163381.

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We investigate the enhancement of second-harmonic generation in cylindrical GaAs nanowires. Although these nanostructures confine light in two dimensions, power conversion efficiencies on the order of 10 − 5 with a pump peak intensity of ~ 1 GW / cm 2 are possible if the pump and the second-harmonic fields are coupled to the Mie-type resonances of the nanowire. We identify a large range of nanowire radii in which a double-resonance condition, i.e., both the pump and the second-harmonic fields excite normal modes of the nanowire, induces a high-quality-factor peak of conversion efficiency. We s

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22

Niu, K., P. Mulser, and L. Drska. "Beam generations of three kinds of charged particles." Laser and Particle Beams 9, no. 1 (1991): 149–65. http://dx.doi.org/10.1017/s0263034600002391.

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Analyses are given for beam generations of three kinds of charged particles: electrons, light ions, and heavy ions. The electron beam oscillates in a dense plasma irradiated by a strong laser light. When the frequency of laser light is high and its intensity is large, the acceleration of oscillating electrons becomes large and the electrons radiate electromagnetic waves. As the reaction, the electrons feel a damping force, whose effect on oscillating electron motion is investigated first. Second, the electron beam induces the strong electromagnetic field by its self-induced electric current de

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23

Khmelev, Vladimir N., Viktor A. Nesterov, Andrey V. Shalunov, and Sergey A. Terentyev. "Identification of conditions for ultrasonic effect on gas-dispersed medium and creation of radiators to increase the efficiency of coagulation in devices with swirling flow." Bulletin of the Tomsk Polytechnic University Geo Assets Engineering 335, no. 10 (2024): 238–52. http://dx.doi.org/10.18799/24131830/2024/10/4463.

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Relevance. The presence and uncontrolled distribution of aerosols of various substances in the air, which have a negative impact on humans, flora and fauna. This problem is especially acute in the extraction, processing and combustion of georesources. The most effective way to solve the problem is the use of high-intensity ultrasonic vibrations, the effect of which on aerosols causes convergence and agglomeration of small particles into large ones. However, at low concentrations, the particle coagulation efficiency is not sufficient to increase the recovery rate of gas treatment equipment. The

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24

Santos, Jennifer De Los, Smadar Arvatz, Oshrit Zeevi, et al. "Abstract 3447: Tumor treating fields (TTFields) treatment planning for a patient with astrocytoma in the spinal cord." Cancer Research 82, no. 12_Supplement (2022): 3447. http://dx.doi.org/10.1158/1538-7445.am2022-3447.

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Abstract Objectives: The use of TTFields following resection and chemoradiation has increased survival in patients with Glioblastoma (Stupp, et al. JAMA. 2015;314:2535-2543). Randomized data provide a strong rationale for the treatment of high grade gliomas using TTFields with individualized array placement that maximizes the dose at the tumor in a patient-specific manner: providing higher TTFields intensity (≥1.0 V/cm) and power density (≥1.1 mW/cm3) which are associated with improved overall survival (Ballo, et al. Int J Radiat Oncol Biol Phys. 2019;104:1106-11). Here for the first time, we

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25

Xu Wang. "From “Strong-Field Atomic Physics” to “Strong-Field Nuclear Physics”." Acta Physica Sinica 73, no. 24 (2024): 0. http://dx.doi.org/10.7498/aps.73.20241456.

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In the mid-1980s, chirped pulse amplification (Nobel Prize in Physics 2018) overcame previous limits on laser intensity, allowing intensities to exceed the atomic unit threshold (1 atomic unit of laser intensity corresponds to a power density of 3.5×10<sup>16</sup>W/cm<sup>2</sup>). Such intense laser fields induce high-order nonlinear responses in atoms and molecules, resulting in a range of novel phenomena, among which high harmonic generation and attosecond pulse generation (Nobel Prize in Physics 2023) are of particular importance. With advancements in high-power la

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26

Demirhan, Osman. "Genotoxic Effects of Radiofrequency-Electromagnetic Fields." Journal of Toxicology and Environmental Sciences 1, no. 1 (2021): 9–12. http://dx.doi.org/10.55124/jtes.v1i1.50.

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Genotoxic Effects of Radiofrequency-Electromagnetic Fields. IntroductionRadiation is energy emission in the form of electromagnetic waves emitted from the solar system and natural resources on earth. The currents produced by the elementary particles formed by the electric current create the magnetic field. Earth's surface is under the influence of the geomagnetic field emanating from the sun. However, the outer liquid also has a magnetic field created as a result of heat transfer in the core. Therefore, all living organisms on earth live under the influence of electromagnetic fields (EMF

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27

Zhao, Na, Longfei Gan, Ke Liu, et al. "Quasi-monoenergetic heavy ion acceleration driven by sub-100 PW linearly polarized laser pulses in the radiation-dominated QED regime." Physics of Plasmas 31, no. 3 (2024). http://dx.doi.org/10.1063/5.0180591.

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Heavy ion acceleration from an ultrathin foil target irradiated by a p-polarized and spatially Gaussian laser pulse at intensity of 1023 W/cm2 is studied by using two-dimensional particle-in-cell simulations. We find that, in the extremely intense laser fields, the radiation reaction force from bright γ-rays radiated by radially oscillating electrons is large enough to match the Coulomb explosive force of foil electrons. The undesirable transverse expansion of the foil from the electron heating and inhomogeneous radial profile of the laser intensity is effectively suppressed. The foil maintain

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28

Jagielski, Michał, Maryna Chernyshova, Karol Malinowski, Antonio Quercia, and Tomasz Fornal. "Magnetic field influence on electron transport in planned GEM-based radiated power diagnostic for DEMO." Physics of Plasmas 31, no. 11 (2024). http://dx.doi.org/10.1063/5.0231855.

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This work relates to development of diagnostics for radiation power (Prad) and soft x-ray (SXR) intensity measurements in DEMO. A modular, multi-chamber, multi-channel SXR detection system based on gas electron multiplier technology in lateral configuration is currently in conceptual design phase. The high magnetic fields expected at the planned detector positions in the diagnostic ports of the tokamak must be considered in the design. The present study examines two contributions of its influence. The first one pertained to the electric field drifts of thermalized electrons. These were found t

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29

Aslan, Mehmet, Ümit Çalışır, and Baki Çiçek. "Comparison of Microwave-assisted Synthesis and Steglich Thioesterification for the Modification of Nanotubes." Current Organic Chemistry 28 (August 13, 2024). http://dx.doi.org/10.2174/0113852728319332240806053131.

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Organo-modified carbon nanotubes have recently gained the interest of many research groups. The potential for applying a new generation of organo-modified carbon nanotubes in many technological fields reveals the importance of covalent modifications on nanotubes. In this study, using the microwave synthesis method, multi-walled carbon nanotube (MWCNT) thiophenol derivatives were obtained with a thioesterification reaction. For this purpose, MWCNT-COOH was obtained from MWCNT by oxidation, and MWCNTCOCl was synthesized from MWCNT-COOH. The MWCNT-CO-S-(ortho/meta/para-methyl/methoxyphenyl) (MA1-

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30

SAYANTAN, GUPTA. "QUANTUM NANO DOTS IN MATERIALS FOR APPLICATIONS IN TUMOR IMAGING AND TREATMENT IN CANCER." January 6, 2017. https://doi.org/10.5281/zenodo.268918.

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The quantum dot (QD) is defined as an artificially structured system with the capacity to load electrons (Hanson et al., 2007). Its special physicochemical properties differentiate it from other naturally occurring biogenic and anthropogenic nanoparticles (Hardman, 2006). QDs are one type of nanoparticles (NPs) with three characteristic properties: semiconductors, zero-dimension, and strong fluorescence.Although colloidal semiconductor QDs are single crystals with diameters of a few nanometres, their sizes and shapes can be precisely controlled by the duration, temperature, and ligand molecule

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31

Pouplin, Clément, Alexis Mouche, and Bertrand Chapron. "A Multi‐Sensor Approach for the Characterization of Tropical Cyclone Induced Swell—Application to TC Larry, 2021." Geophysical Research Letters 51, no. 20 (2024). http://dx.doi.org/10.1029/2024gl109712.

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AbstractSea states are likely highly complex and variable under tropical cyclone (TC) conditions. Outrunning the inner core TC vortex, swell systems can radiate in different directions with different wavelengths. Jointly using several sources of wave observations, it is demonstrated that directional properties of wave fields induced by a TC can now be very well recovered. Directional wave information extracted from Sentinel‐1 wave mode and CFOSAT SWIM are combined with Sofar Spotter drifters and NDBC buoy network. Specific filtering is applied to deal with respective limitations of these obser

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32

Zelenyi, Lev M., Andrei M. Bykov, Yury A. Uvarov, and Anton V. Artemyev. "Intermittency of magnetic field turbulence: Astrophysical applications of in-situ observations." Journal of Plasma Physics 81, no. 4 (2015). http://dx.doi.org/10.1017/s0022377815000409.

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We briefly review some aspects of magnetic turbulence intermittency observed in space plasmas. Deviation of statistical characteristics of a system (e.g. its high statistical momenta) from the Gaussian can manifest itself as domination of rare large intensity peaks often associated with the intermittency in the system's dynamics. Thirty years ago, Zeldovich stressed the importance of the non-Gaussian appearance of the sharp values of vector and scalar physical parameters in random media as a factor of magnetic field amplification in cosmic structures. Magnetic turbulence is governing the behav

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33

Maxwell, Richard, and Toby Miller. "The Real Future of the Media." M/C Journal 15, no. 3 (2012). http://dx.doi.org/10.5204/mcj.537.

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When George Orwell encountered ideas of a technological utopia sixty-five years ago, he acted the grumpy middle-aged man Reading recently a batch of rather shallowly optimistic “progressive” books, I was struck by the automatic way in which people go on repeating certain phrases which were fashionable before 1914. Two great favourites are “the abolition of distance” and “the disappearance of frontiers”. I do not know how often I have met with the statements that “the aeroplane and the radio have abolished distance” and “all parts of the world are now interdependent” (1944). It is worth revisit

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