Stratification of the Low-Latitude and Near-Equatorial F2 Layer, Topside Ionization Ledge, and F3 Layer: What We Know about This? A Review by M. V. Klimenko, B. Zhao, A. T. Karpachev, V. V. Klimenko

Get full text

Demonstration of Millimeter Wave 5G Setup Employing High-Gain Vivaldi Array by Waleed Tariq Sethi, Muhammad Ahmed Ashraf, Amr Ragheb, Amr Alasaad, Saleh A. Alshebeili

Get full text

Design of an L-Band Cross-Dipole Phased Array Feed for FAST by Yubing Han, Luoqing Zhong

“…The Five-Hundred-Meter Aperture Spherical Telescope (FAST) is a Chinese megascience project that aims to build the largest single dish radio telescope in the world. Given its multiple simultaneous beam formation, phased array feed (PAF) is widely used to extend the field of view and enhance the survey speed of the radio telescope. …”
Get full text

WALLABY Pilot Survey and ASymba: Comparing H i Detection Asymmetries to the SIMBA Simulation by Mathieu Perron-Cormier, Nathan Deg, Kristine Spekkens, Mark L. A. Richardson, Marcin Glowacki, Kyle A. Oman, Marc A. W. Verheijen, Nadine A. N. Hank, Sarah Blyth, Helga Dénes, Jonghwan Rhee, Ahmed Elagali, Austin Xiaofan Shen, Wasim Raja, Karen Lee-Waddell, Luca Cortese, Barbara Catinella, Tobias Westmeier

Get full text

Butterfly Distribution of Relativistic Electrons Driven by Parallel Propagating Lower Band Whistler Chorus Waves by S. Saito, Y. Miyoshi

Get full text

Improving of computed tomography images for effective diagnosis of gunshot wounds by E.M. Khoroshun, K.S. Smelyakov, A.S. Chupryna, V.V. Makarov, V.V. Nehoduiko, Ye.V. Vakulik

Get full text

Influence of amplitude and phase imbalance of quadratures on the noise immunity of coherent reception of signals with quadrature amplitude modulation by G. V. Kulikov, A. A. Lelyukh

“…Quadrature amplitude modulation (QAM) is used for high-speed information transmission in many radio systems and, in particular, in DVB-S and DVB-S2/S2X digital satellite television systems. …”
Get full text

Strong turbulent flow in the subauroral region in the Antarctic can deteriorate satellite-based navigation signals by D. S. Kotova, A. A. Sinevich, A. A. Chernyshov, D. V. Chugunin, Y. Jin, W. J. Miloch

“…Such high velocities and structured plasma can affect trans-ionospheric radio waves and lead to scintillations in the received signal. …”
Get full text

RESULTS OF THE SHORT COMPARATIVE ANALYSIS OF MATHEMATICAL MODELS OF INFLUENCE OF THE IONOSPHERE OF THE EARTH ON ULTRA BROADBAND SIGNALS X-RANGE by M. M. Kasperovich, V. A. Kondratyonok

“…For range portrait formation at usage ultrabroadband linearly frequency-modulated signal in radar it is necessary to consider all distortions of an electromagnetic wave on a radio route. …”
Get full text

E-LEARNING AS AN INSTRUMENT ENSURING NATIONAL COMPETITIVE ADVANTAGES DEVELOPMENT AND THE SOURCE OF NATIONAL SECURITY THREATS by Andrey S. Zuev

Get full text

Providing a development model for the effectiveness of persuasive advertising in social networks by Hamzeh Hessani Khabr, Payam Paslari, Mehdi Bagheri, Saeed Muradpour

“…These effects include changes in consumer behavior, intensification of competition, formation of values ​​and beliefs, influence on decision making, change in social behavior, influence on brand trust, change in brand attitude, and influence on social networks. …”
Get full text

Effect of Chlorides on Conductivity and Dielectric Constant in Hardened Cement Mortar: NDT for Durability Evaluation by Sunkook Kim, Joowon Kang, Sang-Hyo Lee, Yong Han Ahn

Get full text

Authority and Moral Conflicts in the Films of Adébáyọ Fálétí: Àfọ̀njá, Gáà, Ṣawo Ṣẹ̀gbẹ̀rì and the Yorùbá Cosmopolis by Olayinka Agbetuyi

“…His career development can be divided into three phases: the formative traditional drama performance phase, the literary drama phase which dovetails into his career as a public servant in a symbiotic relationship and his post public service movie production phase which coincided with the efflorescence of the Nollywood. …”
Get full text

Julius Kruopis – the pioneer of applied statistics in Lithuania by Vilijandas Bagdonavičius, Vydas Čekanavičius, Rūta Levulienė, Pranas Vaitkus

“…He consulted engineers of Kaunas radio factory, Panevėžys factory of kinescopes   ``Ekranas'' and joint  stock company ``AB Lietkabelis'', Vilnius drill,  ``Venta'', ``Vilma'', radio components factories,  Šiauliai TV factory,  Dniepropetrovsk tire factory ``Dnieproshina'', Moscow Aviation Institute, and others.  …”
Get full text

Statistical Study on the Effect of Meridional Neutral Wind on the Occurrence of Post‐Sunset Equatorial Ionospheric Irregularities by Bantayehu Aderaw, Melessew Nigussie

“…Abstract The navigation and radio communication systems experience significant disruptions due to post‐sunset equatorial ionospheric irregularities. …”
Get full text

Radar system for unmanned aerial vehicles by Vladislav R. Skrynskij

“…Application of digital signal processing methods for formation of radio holograms and extraction of information about objects. …”
Get full text

Reverberation Mapping of Two Variable Active Galactic Nuclei: Probing the Distinct Characteristics of the Inner and Outer Broad-line Regions by Hai-Cheng Feng, Sha-Sha Li, J. M. Bai, H. T. Liu, Kai-Xing Lu, Yu-Xuan Pang, Mouyuan Sun, Jian-Guo Wang, Yerong Xu, Yang-Wei Zhang, Shuying Zhou

Get full text

PSR J1947−1120: A New Huntsman Millisecond Pulsar Binary by Jay Strader, Paul S. Ray, Ryan Urquhart, Samuel J. Swihart, Laura Chomiuk, Elias Aydi, Eric C. Bellm, Kristen C. Dage, Megan E. DeCesar, Julia S. Deneva, Maura A. McLaughlin, Isabella Molina, Teresa Panurach, Kirill V. Sokolovsky

“…This pulsar was found via optical, X-ray, and radio follow-up of the previously unassociated γ -ray source 4FGL J1947.6–1121. …”
Get full text

Bridging the communication gap in agrometeorological services: Enhancing the uptake and effectiveness for users in developing countries by Vieri Tarchiani, Sebastian Grey

“…The problem extends beyond media type and format to issues of accessibility, comprehensibility, and users’ trust. …”
Get full text

Irregularities Observed at the Edge of a Mid‐Latitude Ionospheric Depletion Following a Geomagnetic Storm by J. F. Helmboldt

“…Total electron content (TEC) and electron density data show the formation and equatorward propagation of a mid‐latitude trough at ∼50°N followed by the appearance of a wider depletion region (∼15° in latitude) at lower latitudes. …”
Get full text