Investigation of Accuracy of TOA and SNR of Radio Pulsar Signals for Vehicles Navigation [PDF]
Sensors, 2023 It is known that X-ray and gamma-ray pulsars can only be observed by spacecraft because signals from these pulsars are impossible to be detected on the Earth’s surface due to their strong absorption by the Earth’s atmosphere.
Hristo Kabakchiev +4 more
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Rethinking the potential role of dose painting in personalized ultra-fractionated stereotactic adaptive radiotherapy [PDF]
Frontiers in OncologyFractionated radiotherapy was established in the 1920s based upon two principles: (1) delivering daily treatments of equal quantity, unless the clinical situation requires adjustment, and (2) defining a specific treatment period to deliver a total dosage.
Hao Peng +6 more
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Effect of PECVD SiNx deposition process parameters on electrical properties of SiNx/AlGaN/GaN structures [PDF]
Modern Electronic Materials, 2021 The effect of parameters of plasma enhanced chemical vapor deposition (PECVD) processes for SiNx film fabrication on the electrical parameters of dielectric/АlGaN/GaN structures has been studied.
Kira L. Enisherlova +3 more
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Optimization of passivation in AlGaN/GaN heterostructure microwave transistor fabrication by ICP CVD [PDF]
Modern Electronic Materials, 2020 We have studied the effect of silicon nitride (SiN) dielectric passivating film deposition by inductively coupled plasma chemical vapor deposition (ICP CVD) on the parameters of AlGaN/GaN heterostructure high electron mobility transistors (HEMT).
Anastasia A. Sleptsova +3 more
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Control of yellow photoluminescence in AlGaN/GaN heterostructures [PDF]
Modern Electronic Materials, 2019 Photoluminescence with the peak corresponding to yellow color of the visible spectrum (so-called yellow luminescence) originates from deep levels in the GaN buffer layers of heterostructures and depends on heterostructure growth conditions.
Nadezhda B. Gladysheva +4 more
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FIRST DETECTION AT THE DECAMETER WAVELENGTHS AND CLARIFICATION OF RADIATION PARAMETERS OF PSR J2325-0530, PSR J0613+3731, AND PSR J1426+52 RADIO PULSARS [PDF]
Radio Physics and Radio Astronomy, 2020 Purpose: Due to the significant increase of a number of pulsars discovered with high-frequency radio telescopes over the last ten years and the necessity to obtain accurate parameters of their decameter radiation (as well as to identify single pulses ...
I. P. Kravtsov +8 more
doaj +1 more source
Scientific Reports, 2023 Laser wakefield accelerators (LWFAs) can produce high-energy electron bunches in short distances. Successfully coupling these sources with undulators has the potential to form an LWFA-driven free-electron laser (FEL), providing high-intensity short ...
Kay A. Dewhurst +7 more
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Theoretical Study of Gamma-ray Pulsars [PDF]
Journal of Astronomy and Space Sciences, 2016 We use the non-stationary three dimensional two-layer outer gap model to explain gamma-ray emissions from a pulsar magnetosphere. We found out that for some pulsars like the Geminga pulsar, it was hard to explain emissions above a level of around 1 GeV.
Kwong Sang Cheng, Jumpei Takata
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DETERMINATION OF THE ROTATION MEASURE VALUE SIGN WHEN RECEIVING A SINGLE LINEAR POLARIZATION OF THE PULSAR RADIO EMISSION [PDF]
Radio Physics and Radio Astronomy, 2020 Purpose: The studies of pulsars allow enriching our knowledge in determination of parameters of both the exotic electron-positron plasma in the pulsar magnetosphere with strong magnetic field and the ordinary ion-electron plasma of the interstellar ...
O. M. Ulyanov +2 more
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Gamma-ray pulsar halos in the Galaxy
Frontiers in Astronomy and Space Sciences, 2022 Pulsar halos are extended gamma-ray structures generated by electrons and positrons escaping from pulsar wind nebulae (PWNe), considered a new class of gamma-ray sources.
Kun Fang
doaj +1 more source