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Journal articles on the topic 'Radio Operation'

Author: Grafiati

Published: 27 July 2024

Last updated: 31 July 2025

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1

Бернгардт, Олег, and Oleg Berngardt. "Space weather impact on radio device operation." Solar-Terrestrial Physics 3, no. 3 (2017): 37–53. http://dx.doi.org/10.12737/stp-33201705.

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This paper reviews the space weather impact on operation of radio devices. The review is based on recently published papers, books, and strategic scientific plans of space weather investigations. The main attention is paid to ionospheric effects on propagation of radiowaves, basically short ones. Some examples of such effects are based on 2012–2016 ISTP SB RAS EKB radar data: attenuation of ground backscatter signals during solar flares, effects of traveling ionospheric disturbances of different scales in ground backscatter signals, effects of magnetospheric waves in ionospheric scatter signal

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MILLROY, P., S. COLEMAN, and R. IVERS. "The SauvÉ-Kapandji Operation." Journal of Hand Surgery 17, no. 4 (1992): 411–14. http://dx.doi.org/10.1016/s0266-7681(05)80264-5.

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For distal radio-ulnar joint disorders, the Sauvé-Kapandji procedure, previously attributed to Lauenstein, of arthrodesis of the joint and distal ulnar pseudarthrosis is a very useful procedure, yet is not often practised. This paper describes the technique and presents the results of 81 procedures in 71 patients. There was excellent patient satisfaction. The procedure is a reliable and effective method of dealing with distal radio-ulnar joint disorders, especially in rheumatoid arthritis and following distal radial fractures. Some changes to previous techniques are emphasized.

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Shyshatskyi, Andrii, Artur Melnyk, Oleksii Bondar, et al. "Justification of the methodological bases for the management of the radio resource of special purpose radio communication systems under conditions of prior uncertainty." Technology audit and production reserves 1, no. 2(57) (2021): 61–65. http://dx.doi.org/10.15587/2706-5448.2021.225017.

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The problem of substantiation of methodological bases of radio resource management of military radio communication systems in the conditions of a priori uncertainty is solved in the work. The object of research is the military radio communication system. One of the most problematic places in the management of military radio resources is the inability to carry out a hierarchical management of the parameters and modes of operation of both individual radios and the military radio system as a whole. This reduces the efficiency of the system itself and the efficiency of its application. The scienti

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Andrii, Shyshatskyi, Melnyk Artur, Bondar Oleksii, et al. "Justification of the methodological bases for the management of the radio resource of special purpose radio communication systems under conditions of prior uncertainty." Technology audit and production reserves 1, no. 2(57) (2021): 61–65. https://doi.org/10.15587/2706-5448.2021.225017.

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<em>The problem of substantiation of methodological bases of radio resource management of military radio communication systems in the conditions of a priori uncertainty is solved in the work. The object of research is the military radio communication system. One of the most problematic places in the management of military radio resources is the inability to carry out a hierarchical management of the parameters and modes of operation of both individual radios and the military radio system as a whole. This reduces the efficiency of the system itself and the efficiency of its application.</em> <e

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Nedobegkin, M. I., V. A. Sinitsyn, E. A. Sinitsyn, and S. Yu Strakhov. "ENSURING ELECTROMAGNETIC COMPATIBILITY OF RADIONAVIGATION SYSTEMS OF AIRCRAFT AND CELLULAR FACILITIES." Issues of radio electronics, no. 6 (June 21, 2019): 53–59. http://dx.doi.org/10.21778/2218-5453-2019-6-53-59.

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The paper considers the results of the analysis of the causes of unintentional interference to on‑Board and ground equipment of the radio system of near navigation and landing radio beacon landing group, as well as the basic methods and means to ensure the noise immunity of standard equipment on airfields of the Russian Federation. It is noted that the most significant sources of unintended radio interference affecting the operation of on‑Board equipment of radio systems of short‑range navigation of aircraft in its operation with the radio beacons of radio systems of short‑range navigation and

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Du, Qin Jun, Chuan Dai Dong, and Lian Liang Ba. "Mechanical Design of a Needle Driven Robot." Advanced Materials Research 121-122 (June 2010): 905–10. http://dx.doi.org/10.4028/www.scientific.net/amr.121-122.905.

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This paper describes mechanical design for a minimally invasive surgery robot, the robot will help surgons to realize high quality and precise localization in radio frequency ablation for patients with liver tumors. At present, radio frequency ablation minimally invasive more and more using in the minimally surgery operation, therefore, to develope a medical robot assisting surgons to achieve success in the radio frequency operation is necessary. In this paper, we analysis the radio frequency operation, according to the requirement of the minimally invasive operation, a medical robot structure

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Maliuk, Victor, Oleksandr Iohov, Stanislav Horielyshev, et al. "Bounds Calculation Method of Electromagnetic Availability Zone of Radio Emission Source." Advances in Military Technology 17, no. 2 (2022): 341–56. http://dx.doi.org/10.3849/aimt.01739.

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The article deals with the problem of determining the electromagnetic availability zone of the radio transmitter of the radio communication channel in the UHF/VHF range on the terrain map of the area. This problem was solved using well-known mathematical models of radio signal propagation, depending on the characteristics of the specific area. Based on the wave algorithm, a bounds calculation method of electromagnetic availability zone is proposed, using a digitized radiation pattern of radio means. The conducted calculations show the effectiveness of the method in the tasks of assessing the p

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Mendiževec, Aleš. "For Radio student." Maska 35, no. 200 (2020): 28–33. http://dx.doi.org/10.1386/maska_00006_1.

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On the occasion of Radio Študent’s 50th anniversary, the article focuses on its place in modern society – the conditions and manner of enunciation in the situation in which it has found itself and from which it is coming from. It does that by comparing Balibar’s analysis of the current state of democracy and conceptualization of the principle of democracy with its situation and mode of operation. The aim is to highlight the specificity of Radio Študent and its immanent criteria of operation: fearless speech beyond guaranteed enunciation positions in which anyone can find themselves in the time

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Julius-Adeoye, ‘Rantimi Jays. "Community radio: an instrument for good governance in Nigeria." EJOTMAS: Ekpoma Journal of Theatre and Media Arts 7, no. 1-2 (2020): 348–61. http://dx.doi.org/10.4314/ejotmas.v7i1-2.23.

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Decree No. 38 of 1992 enacted under the administration of General Ibrahim B. Babangida put a stop to fifty seven years of government’s exclusive ownership and operation of broadcasting in Nigeria. However, with the cost of setting-up, management and obtaining license for media station being prohibitively expensive, the system can only be accessed by the rich and powerful in the society, thereby depriving rural communities’ involvement in the development of the country. As part of the panoply of strategies to ensure rural communities’ participation in democratic governance, there is need for th

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Amirinasab Nasab, Mehdi, Shahaboddin Shamshirband, Anthony Chronopoulos, Amir Mosavi, and Narjes Nabipour. "Energy-Efficient Method for Wireless Sensor Networks Low-Power Radio Operation in Internet of Things." Electronics 9, no. 2 (2020): 320. http://dx.doi.org/10.3390/electronics9020320.

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The radio operation in wireless sensor networks (WSN) in Internet of Things (IoT) applications is the most common source for power consumption. Consequently, recognizing and controlling the factors affecting radio operation can be valuable for managing the node power consumption. Among essential factors affecting radio operation, the time spent for checking the radio is of utmost importance for monitoring power consumption. It can lead to false WakeUp or idle listening in radio duty cycles and ContikiMAC. ContikiMAC is a low-power radio duty-cycle protocol in Contiki OS used in WakeUp mode, as

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Sugasawa, Masashi. "Salvage operation after concurrent chemo-radio therapy." Toukeibu Gan 33, no. 3 (2007): 346–51. http://dx.doi.org/10.5981/jjhnc.33.346.

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Бернгардт, Олег, and Oleg Berngardt. "Space weather impact on radio device operation." Solnechno-Zemnaya Fizika 3, no. 3 (2017): 40–60. http://dx.doi.org/10.12737/szf-33201705.

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This paper reviews the space weather impact on operation of radio devices. The review is based on recently published papers, books, and strategic scientific plans of space weather investigations. The main attention is paid to ionospheric effects on propagation of radiowaves, basically short ones. Some examples of such effects are given based on 2012–2016 ISTP SB RAS EKB radar data: attenuation of ground backscatter signals during solar flares, effects of travelling ionospheric disturbances of different scales in ground backscatter signals, effects of magnetospheric waves in ionospheric scatter

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13

Green, Andrew Joseph, Kelson D. Chabak, Michele Baldini, et al. "$\beta$ -Ga2O3 MOSFETs for Radio Frequency Operation." IEEE Electron Device Letters 38, no. 6 (2017): 790–93. http://dx.doi.org/10.1109/led.2017.2694805.

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Krasheninnikov, I. V., and V. N. Shubin. "Features of Forecasting the Operation of Ionospheric Radio Lines in Upper Rays Modes." Геомагнетизм и аэрономия 63, no. 4 (2023): 473–80. http://dx.doi.org/10.31857/s0016794023600096.

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The frequency dependence of transmitted information qualitative indicators is analyzed on theexample of two meridional radio links: single-hop (~2600 km) and dominant two-hop (~5100 km) for basicmodes of radio wave propagation in the ionosphere. It is shown that the presence of highly efficient receivingtransmittingantennas in a radio communication system leads to the need to take the existence of a priori energeticallyextremely weak modes into account in the problem of radio path specification statement. In thiscase, we consider those formed exclusively by the mechanism of radiation transfer

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Ali, Yousaf, and Ijaz Khan. "Uses and Abuses of FM Radios by Militants in Former Federally Administered Tribal Areas (FATA) and Provincially Administered Tribal Areas (PATA), Pakistan." Central Asia 83, Winter (2019): 157–71. http://dx.doi.org/10.54418/ca-83.34.

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Abstract This research deals with the uses of abuses of FM radios in Khyber Pakhtunkhwa (KP) and the recently merged districts – former Federally Administered Tribal Areas (FATA) during the period ranging from 2003 to 2018. Radio is the most effective mean of mass communication. The rapid increase in FM radios and its cheap and easy operation was a source of attraction for many to disseminate their message. The use of FM radio has been on the rapid rise for the last nearly two decades, both for propaganda, political and commercial purposes. The government, private entities and some anti-

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Gordyaskina, Tatyana V., and Lyudmila S. Grosheva. "THE SHIP'S RECEIVING AND TRANSMITTING EQUIPMENT ELEMENTS RESEARCH BASED ON THE TMS320C5510 SIGNAL PROCESSOR." Russian Journal of Water Transport, no. 63 (June 1, 2020): 40–47. http://dx.doi.org/10.37890/jwt.vi63.74.

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Ship's radio equipment, produced on a modern digital basis, is used as equipment for the global Maritime disaster communication system( GMDSS), vehicle traffic control systems and dangerous proximity warnings, radar and radio navigation systems. The article presents the synthesis and research method concerning the principles of functioning the professional activity objects in relation to specialists in transport radio equipment technical operation related to the example of radio receiving and transmitting devices (GMDSS )equipment block based on the digital signal processor TMS320C5510. In the

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Gall, R. D. "Shared Operation of a Barrage Jammer and Reference Signal Sources for Determining Ground-Based Radio Transmitters Operating via Geostationary Relay Satellites." Journal of the Russian Universities. Radioelectronics 24, no. 2 (2021): 28–53. http://dx.doi.org/10.32603/1993-8985-2021-24-2-38-53.

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Introduction. There are incidences of jamming the users of satellite communication systems, who apply e.g. geostationary relay satellites, and the illegal use of such satellite resources. These actions can be both intentional and unintentional, and, among other things, be caused by non-compliance with electromagnetic compatibility standards on part of other users of satellite communication systems. For a prompt and high -quality response of radio monitoring services and satellite operators to these illegal actions, it seems urgent to develop methods for accurate determination of the geolocatio

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Shibata, T., K. Ohkoshi, K. Shinto, K. Nanmo, K. Ikegami, and H. Oguri. "Soundness evaluation of J-PARC RF ion source after 5-month continuous operation." Journal of Physics: Conference Series 2244, no. 1 (2022): 012041. http://dx.doi.org/10.1088/1742-6596/2244/1/012041.

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Abstract In the J-PARC user operation from Nov. 2020 – Apr. 2021, continuous operation of J-PARC Radio Frequency (RF) negative hydrogen ion (H-) source up to 3,651 hours (5 months) has been achieved. The ion source was operated with the output H- current of 60 mA, the duty factor (for plasma generation) 2% and the input RF power up to 30 kW. After the operation, phase space diagrams at the Radio Frequency Quadrupole linac (RFQ) entrance were measured by the emittance monitor at the ion source test stand (IS-TS) under the same operation condition as in the J-PARC Linac. Comparison of the phase

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Reypnazarov, Ernazar, Halimjon Khujamatov, Debasis Das, Alisher Shakhobiddinov, Doston Khasanov, and Tazakhan Babazhanova. "Modeling and research of the operation of cognitive radio networks." E3S Web of Conferences 452 (2023): 03006. http://dx.doi.org/10.1051/e3sconf/202345203006.

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Cognitive radio networks (CRN) have emerged as a promising technology to address the spectrum scarcity problem by allowing unlicensed users to access the licensed spectrum dynamically. The operation process of CRN involves several steps such as spectrum sensing, spectrum decision, and spectrum sharing. This paper provides information on the model and algorithm developed for researching the operation of cognitive radio networks and describes the results of the research. The model is built in the Matlab software environment, and the relevant results of such processes as occupying channels, detec

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Puricer, Kovar, and Barta. "Modernized Solar Radio Spectrograph in the L Band Based on Software Defined Radio." Electronics 8, no. 8 (2019): 861. http://dx.doi.org/10.3390/electronics8080861.

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The paper presents the concept, implementation, and test operation of a modernized solar radio spectrograph for an investigation of the solar emission and solar bursts in radio frequency bands. Besides having a strong diagnostic significance for studying the flare energy release, the solar radio bursts can also cause strong interference for radio communication and navigation systems. The current spectrograph for the Ondrejov observatory (Astronomical Institute of Czech Academy of Sciences) was modernized by using a direct-conversion receiver connected to a field-programmable gate array (FPGA)

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21

Hordiichuk, V., V. Sergienko, A. Mishchenko, A. Shyshatskyi, and P. Pozdniakov. "ANALYSIS OF TECHNICAL CHARACTERISTICS OF THE RADIOELECTRONIC INTELLIGENCE OF THE RUSSIAN FEDERATION." Системи управління, навігації та зв’язку. Збірник наукових праць 1, no. 53 (2019): 142–46. http://dx.doi.org/10.26906/sunz.2019.1.142.

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One of the most important characteristics of radiocommunication systems and facilities that operate in the conditions of radio-electronic suppression is their secrecy, which is the ability of systems and radio communications to withstand the actions of radio-intelligence. Radiotechnical intelligence provides consistent execution of three main tasks: the detection of the fact of the operation of the system (devices) of radio communication (signal detection); determination of the structure of the detected signal and its basic parameters; disclosure of the information contained in the signal. Tak

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Pranjal, Singh. "Cognitive Radio Driven Energy Saving in Wireless Sensor Networks." Journal of Information Sciences and Computing Technologies 1, no. 1 (2015): 55–58. https://doi.org/10.5281/zenodo.3969256.

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Energy saving has been one of the major design criteria for wireless sensor networks. Cognitive radio is an enabling technology for dynamic spectrum access in opportunistic manner. In the present work, we assume that wireless sensor network consists of smart radios embedded with cognitive radio capability. These smart radio nodes can sense white space available and may decide the use of channels with the best propagation characteristics. In this paper, we investigate the use of cognitive radio in wireless sensor networks which can use the frequency from white space for their operation in oppor

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Pranjal, Singh. "Increasing energy efficiency in wireless sensor networks using cognitive radios." Journal of Information Sciences and Computing Technologies 1, no. 1 (2015): 55–58. https://doi.org/10.5281/zenodo.4014586.

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Energy saving has been one of the major design criteria for wireless sensor networks. Cognitive radio is an enabling technology for dynamic spectrum access in opportunistic manner. In the present work, we assume that wireless sensor network consists of smart radios embedded with cognitive radio capability. These smart radio nodes can sense white space available and may decide the use of channels with the best propagation characteristics. In this paper, we investigate the use of cognitive radio in wireless sensor networks which can use the frequency from white space for their operation in oppor

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Subandi Ibrahim, Idi. "Communicating Health Through Community Radio : Making the Local Community Healthy by Empowering Community Radio." LINIMASA: JURNAL ILMU KOMUNIKASI 1, no. 2 (2018): 22. http://dx.doi.org/10.23969/linimasa.v1i2.1079.

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ABSTRACT This article is about community radio in Indonesia, and highlighting the huge potentiality as a medium for health communication relevant with the context of local community. The main focus is to community radio stations in the region of Pantura, West Java. Through field observation and interview with the management of the community radios, this article shows the community radio’s strategy and operation to struggle in their daily local community activities. When traditional communities are dying destroyed by the excesses of free market liberalism, community radio becomes the spac

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Lee, Y., R. A. Gough, K. N. Leung, et al. "Quartz antenna for radio frequency ion source operation." Review of Scientific Instruments 69, no. 2 (1998): 1023–25. http://dx.doi.org/10.1063/1.1148708.

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Yongzhi Shao, Zhe Chen, and Pingshan Wang. "Exploiting Filter Stopband for Radio Frequency Interferometer Operation." IEEE Sensors Journal 15, no. 10 (2015): 5813–20. http://dx.doi.org/10.1109/jsen.2015.2449731.

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Solomentsev, Oleksandr, Maksym Zaliskyi, Tetyana Herasymenko, and Yuliia Petrova. "Method for Changepoint Detection With Sample Size Accumulation During Radio Equipment Operation." Electrical, Control and Communication Engineering 16, no. 1 (2020): 23–29. http://dx.doi.org/10.2478/ecce-2020-0004.

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AbstractThe operation system determines the efficiency of the intended use of radio equipment. The operation system includes radio equipment, documentation, operational resources, personnel, processes, data processing algorithms, etc. The operation process is associated with conditions of priori uncertainty of models, parameters, external factors, etc. The main element for monitoring is technical condition of radio equipment. In a general case, this condition can deteriorate. The problems of technical condition deterioration analysis can be considered in terms of changepoint study. The present

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Iohov, O., V. Maliuk, and Ye Kaplun. "ALGORITHM FOR DETERMINING THE BOUNDARIES OF THE ZONE OF INTERFERENCE OPERATION OF THE RADIO CHANNEL OF THE UHF / VHF RANGE COMMUNICATION IN THE CONDITIONS OF OPERATION OF THE RADIOSHENOPRIAD SOURCE SYSTEM AT DIFFERENT HEIGHTS." Collection of scientific works of the National Academyof the National Guard of Ukraine 1, no. 37 (2021): 38–51. http://dx.doi.org/10.33405/2409-7470/2021/1/37/237826.

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A method for determining the limits of the maximum size of the stable radio reception area in the UHF / VHF range for mobile radio communication under the conditions of the radio interference system is proposed. The radio is intended to use a directional antenna or screen. Increasing the size of the stable radio reception area is provided by the optimal orientation at each point of the antenna device in azimuth and angle using the model of the radio channel, which allows to calculate the signal / interference ratio taking into account the spatial location of radio interference sources and digi

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Iohov, O., V. Maliuk, and Ye Kaplun. "ALGORITHM FOR DETERMINING THE BOUNDARIES OF THE ZONE OF INTERFERENCE OPERATION OF THE RADIO CHANNEL OF THE UHF / VHF RANGE COMMUNICATION IN THE CONDITIONS OF OPERATION OF THE RADIOSHENOPRIAD SOURCE SYSTEM AT DIFFERENT HEIGHTS." Collection of scientific works of the National Academyof the National Guard of Ukraine 1, no. 37 (2021): 38–51. http://dx.doi.org/10.33405/2409-7470/2021/1/37/237826.

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A method for determining the limits of the maximum size of the stable radio reception area in the UHF / VHF range for mobile radio communication under the conditions of the radio interference system is proposed. The radio is intended to use a directional antenna or screen. Increasing the size of the stable radio reception area is provided by the optimal orientation at each point of the antenna device in azimuth and angle using the model of the radio channel, which allows to calculate the signal / interference ratio taking into account the spatial location of radio interference sources and digi

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Дакі, Олена Анатоліївна. "МЕТОД РОЗРАХУНКУ ФУНКЦІЇ РОЗПОДІЛУ ПАРАМЕТРІВ КОНТРОЛЮ РАДІОНАВІГАЦІЙНИХ КОМПЛЕКСІВ ЗАСОБІВ ВОДНОГО ТРАНСПОРТУ". Aerospace technic and technology, № 2 (22 квітня 2019): 76–84. http://dx.doi.org/10.32620/aktt.2019.2.10.

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The article shows that the use of modern navigation systems and complexes for controlling the movement of water transport vehicles allows for safe navigation. It is substantiated that the proper work of navigation equipment – radio navigation complexes – depends on their technical condition. Thus, the presence in the radio navigation complexes of water transport facilities of a large number of electronic elements and radio channels and the aggressive environment of their operation increase the role of methods and instruments for monitoring and diagnosing the technical state of the radio naviga

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STANLEY, J. K., and D. A. BOOT. "Radio-Lunate Arthrodesis." Journal of Hand Surgery 14, no. 3 (1989): 283–87. http://dx.doi.org/10.1016/0266-7681_89_90082-x.

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Radio-lunate arthrodesis has been carried out in 15 rheumatoid patients whose radiographs showed localised arthritis around the radio-lunate joint. Six patients had insertion of a Stanley-Shelley plate. The results were assessed from 1 to 3½ years after operation and were excellent in nine wrists, good in three, fair in one and poor in three wrists. Continued carpal degeneration in 12 wrists suggests that long-term follow-up is required before this procedure can be generally recommended.

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Park, Hyebin, and Yujin Lim. "Energy-Effective Power Control Algorithm with Mobility Prediction for 5G Heterogeneous Cloud Radio Access Network." Sensors 18, no. 9 (2018): 2904. http://dx.doi.org/10.3390/s18092904.

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In 5G networks, heterogeneous cloud radio access network (H-CRAN) is considered a promising future architecture to minimize energy consumption and efficiently allocate resources. However, with the increase in the number of users, studies are performed to overcome the energy consumption problems. In this study, we propose a power control algorithm with mobility prediction to provide a high-energy efficiency for 5G H-CRAN. In particular, the proposed algorithm predicts UE mobility in vehicular mobility scenarios and performs remote radio head (RRH) switching operations based on % prediction resu

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Park, Jungju, and Donmook Choi. "Improvement and Utilization of Auxiliary Radio Communication System." Journal of the Korean Society of Hazard Mitigation 23, no. 3 (2023): 83–93. http://dx.doi.org/10.9798/kosham.2023.23.3.83.

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An auxiliary radio communication system is a fire extinguishing system necessary for smooth radio communication between a fire brigade and the ground command departments performing fire extinguishing and rescue activities at disaster sites such as basements, tunnels, and high-rise buildings. The ability to provide smooth communication between the command and field personnel at the disaster site determines the success of the operation. However, the reinforced concrete structures used in modern buildings reflect, refract, and diffract radio waves. Thus, they represent the largest obstacles to tr

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Siang, Jee, Lim Meng Hee, and Mohd Salman Leong. "Working Principles of Vibroelectric Nano Generator in Wireless Sensor Networks: A Review." MATEC Web of Conferences 255 (2019): 02008. http://dx.doi.org/10.1051/matecconf/201925502008.

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Wireless sensor networks are solely dependent on battery limits the operation as well as maintenance effort. Vibroelectric nano generator able to prolong the operation by converting ambient vibration and power the equipment. The working principles includes Piezoelectric, Electromagnetic, Triboelectric, Magnetostrictive and Flexoelectric. This paper discussed the principle operations and key function materials, the advantages and disadvantages are specified. Hybrid incorporated with solar, thermal or radio frequency is considered as current trend of nano generator with further improvement as fu

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Robertson, H. A., R. M. Colbourne, P. Graham, P. J. Miller, and R. J. Pierce. "Survival of brown kiwi exposed to 1080 poison used for control of brushtail possums in Northland, New Zealand." Wildlife Research 26, no. 2 (1999): 209. http://dx.doi.org/10.1071/wr97001.

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All 35 radio-tagged adult brown kiwi (Apteryx mantell i) survived at least three months after being exposed to 1080 poison (sodium monofluoroacetate) during a brushtail possum (Trichosurus vulpecul a) control operation; 22 birds were exposed to 1080 in pollard baits at a loading of 0.15% w/w, and 13 birds were exposed to 1080 presented in jam baits, at a loading of 0.08% w/w. A radio-tagged juvenile was killed by a predator 2.5 months after being exposed to jam baits. In the three months after the 1080 operation, the weights of adult kiwi in the poisoned area were no different from those in ne

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Li Weiping, 李韦萍, 孔淼 Kong Miao, 石俊婷 Shi Junting, and 余建军 Yu Jianjun. "Multiple Radio Frequency Operation Based on a Modulator in a Radio-over-Fiber System." Chinese Journal of Lasers 47, no. 11 (2020): 1106002. http://dx.doi.org/10.3788/cjl202047.1106002.

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Vikulov, Anton, and Svetlana Skorobogatova. "Study of Guard Interval Duration on the Operation Impact of IEEE 802.11 Network." Telecom IT 11, no. 1 (2023): 39–49. http://dx.doi.org/10.31854/2307-1303-2023-11-1-39-49.

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Purpose. One of the new additions in the IEEE 802.11n standard amendment was the introduction of the short inter-symbol guard interval, which makes it possible to operate at slightly higher data rates. However, using a short guard interval is not always recommended. The fact is that on some types of sites where radio coverage is provided, the peculiarities of signal propagation with a short guard interval may give worse frame retry rate. In modern networks, this aspect remains more relevant than ever, and the task of correct guard interval configuration remains relevant for both the designer a

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Solomentsev, O. V., M. Yu Zaliskyi, O. A. Shcherbyna, and M. M. Asanov. "OPTIMIZATION OF PREVENTIVE THRESHOLD FOR CONDITIONBASED MAINTENANCE OF RADIO ELECTRONIC EQUIPMENT." Radio Electronics, Computer Science, Control, no. 2 (July 15, 2021): 19–27. http://dx.doi.org/10.15588/1607-3274-2021-2-2.

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Context. Operation costs throughout the life cycle of radio electronic equipment are very significant, which value far exceeds the initial cost of the equipment. Therefore, the up-to-date scientific and technical problem is to minimize operation costs. One of the ways to solve this problem is the introduction of statistical data processing technologies in the operation systems of radio electronic equipment. Objective. The goal of the paper is to improve the efficiency of thecondition-based maintenance with the determining parameters monitoring, which is widely used in civil aviation.&#x0

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Thompson, Charles, Lejun Hu, Grace Remillard, Kavitha Chandra, Vacharaporn Paradorn, and Azizat Lawal. "A passive radio frequency excited acoustic transducer." Journal of the Acoustical Society of America 151, no. 4 (2022): A57. http://dx.doi.org/10.1121/10.0010645.

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The physical processes that govern the operation of a passive acoustic transducer driven into operation by a broadcast radio-frequency electromagnetic wave are presented. The transducer is comprised of a re-entrant cavity resonator operating in its resonant TEM mode and a sensing membrane. By displacing the membrane using the acoustic pressure, one can generate an amplitude modulated radio frequency signal proportional to the product of the displacement and the excitation signal. One may use the backscattered electromagnetic signal to recover the audio signal. The results for power generation,

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Konsimbo, Esther Delwendé, and Boukari Ouédraogo. "Les radios communautaires au Burkina Faso face à la crise sécuritaire : Contraintes, adaptations et résiliences." Mande Studies 26, no. 1 (2024): 71–87. https://doi.org/10.2979/mnd.00015.

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RÉSUMÉ: L'insécurité qui secoue le Burkina Faso depuis 2015 a modifié les pratiques journalistiques et le rôle des radios communautaires au Burkina Faso. Cet article analyse comment les radios communautaires font face aux défis liés à la crise sécuritaire. L'article s'appuie sur la théorie du gatekeeping comme cadre d'analyse. A partir d'entretiens avec les responsables de sept stations de radio émettant dans des zones d'insécurité et de l'étude d'une grille de programmes, nous montrons que les groupes terroristes sont le principal filtre, ou gatekeeper, au vu de l'influence qu'ils exercent su

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Khrystyuk, Andriy, and Oleksandr Cherniuk. "From Control Loss to Autonomous Operation: Failsafe Strategies for Modern UAVs." Modeling, Control and Information Technologies, no. 7 (December 7, 2024): 342–43. https://doi.org/10.31713/mcit.2024.106.

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This paper analyzes the operating principles of the ExpressLRS radio control system for unmanned aerial vehicles (UAVs). It examines mechanisms for protecting UAVs from loss in the event of signal loss and explores various UAV behavior options in such situations. The study identifies possible ways to implement UAV protection mechanisms and highlights the potential for the UAV to perform a specific task even after radio communication with the operator is lost

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D. C., Afulike. "Influence of Radio Broadcast Automation as a Computer-Base Application for Studio Operations in Flo-Fm, Umuahia, Abia State, Nigeria." British Journal of Mass Communication and Media Research 4, no. 1 (2024): 115–31. http://dx.doi.org/10.52589/bjmcmr-heu1kgg4.

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Broadcast automation allows the use of a set of technologies that helps radio workers to sequence sound recordings ahead of time, thus enabling radio stations to keep broadcasting and transmitting for long hours without human intervention. Relying on the above, objectives were set to determine the radio studio operational uses and application of Flo-FM broadcast automation, using the survey method with the entire staff of the station as population. The positive sampling technique was used to select 30 respondents for the study using the questionnaire as an instrument for data collection. In th

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Priyanka, T. S. "Implimentation Of RFID Technology In Libraries For Effective And Efficient Functioning Of Library Operations." International Journal of Advance and Applied Research 10, no. 1 (2022): 345 to 349. https://doi.org/10.5281/zenodo.7192711.

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<em>The challenging task of libraries is to perform circulation function and shelving operation, as it consumes much time and requires more staffs. The RFID technology provides the solution to such problems. Radio frequency identification is one of the useful and fast growing technologies used in many libraries. Radio Frequency Identification, RFID is a radio wave technology used to identify the item or objects automatically. The paper covers the components of RFID technology. It also discusses how RFID technology is differs from barcode system. This article emphasizes the advantages of RFID i

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Babayan, Alexandr, Maxim Kulikov, and Tatyana Kulikova. "Operation properties estimate of carbamide foam plastic modified with carbon fiber." Science intensive technologies in mechanical engineering 2020, no. 3 (2020): 32–36. http://dx.doi.org/10.30987/2223-4608-2020-3-32-36.

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There is investigated the concentration impact of the filler inserted into polymeric foams for its radio-absorbing properties improvement upon some their operation characteristics. The investigation objects are carbamide- formaldehyde plastic foams and carbon fiber of Uglen 9R type. The purpose of investigation is the estimate of strength properties of radio-absorbing polymeric foams modified with carbon fiber and the analysis of a filler concentration impact upon adhesion and strength during compression.

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Riza, Bob Subhan. "An Energy-Efficient Jamming Attacks Detection based on Cognitive Radio Networks." International Innovative Research Journal of Engineering and Technology 6, no. 2 (2020): CS—37—CS—45. http://dx.doi.org/10.32595/iirjet.org/v6i2.2020.140.

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5G wireless networks, primarily because of the device - to - device connections can enable huge networking. Dynamic bandwidth connectivity is a feature that enables device-to-device connections. Applications configured with cognitive radios must be authorized to reprocess the bandwidth consumed by cellular connections. The complex efficiency of the bandwidth allows cognitive consumers to switch between networks. In specific, switching contributes to energy efficiency, delay, and bandwidth connectivity. When the system is under the jamming attack, the computational cost much more. It is a major

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Choi, Man-Soo, Woo-Kyoung Lee, Sung-Ki Cho, and Jong-Uk Park. "Operation of the Radio Occultation Mission in KOMPSAT-5." Journal of Astronomy and Space Sciences 27, no. 4 (2010): 345–52. http://dx.doi.org/10.5140/jass.2010.27.4.345.

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Vintaev, V. N., M. G. Gadzhiev, A. I. Urazbachtin, and N. N. Ushakova. "Modeling of Verification Operation Modes of Radio-Technical Systems." Telecommunications and Radio Engineering 64, no. 5 (2005): 393–406. http://dx.doi.org/10.1615/telecomradeng.v64.i5.60.

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Dattoli, E. N., Kuk-Hwan Kim, W. Y. Fung, Seok-Youl Choi, and Wei Lu. "Radio-Frequency Operation of Transparent Nanowire Thin-Film Transistors." IEEE Electron Device Letters 30, no. 7 (2009): 730–32. http://dx.doi.org/10.1109/led.2009.2021167.

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Zhyla, Semen, Eduard Tserne, Yevhenii Volkov, et al. "Statistical Synthesis and Analysis of Functionally Deterministic Signal Processing Techniques for Multi-Antenna Direction Finder Operation." Computation 12, no. 9 (2024): 170. http://dx.doi.org/10.3390/computation12090170.

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This manuscript focuses on the process of measuring the angular positions of radio sources using radio engineering systems. This study aims to improve the accuracy of measuring the angular positions of sources that radiate functionally determined signals and to expand the range of the unambiguous operation angles for multi-antenna radio direction finders. To achieve this goal, the following tasks were addressed: (1) defining the models of signals, noise, and their statistical characteristics, (2) developing the theoretical foundations of statistical optimization methods for measuring the angul

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Familusi, T. O., T. Ewetumo, K. D. Adedayo, and J. S. Ojo. "Assessment of Radio Refractivity and Frequency Modulated Radio Signal Strength Variability with Time in Broadcasting System using Osun State Broadcasting Cooperation (OSBC), FM 104.5 MHz as a Reference Station." International Journal of Innovative Science and Research Technology 7, no. 4 (2022): 1479–89. https://doi.org/10.5281/zenodo.6655115.

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Radio Refractivity and frequency modulated radio signal strength were simultaneously synchronized through a self-developed frequency modulated radio signal Strength (FMRSS) and radio refractivity (RF) Meter to acquire data for this research work. The meter was tuned to Osun State Broadcasting Cooperation (OSBC) at FM 104.5 MHz to acquire data over period of 66 days from 23/11/2021 to 05/12/2021, 17/12/2021to 31/12/2021 and 01/01/2022 to 05/02/2022 respectively. The data were processed and the result viewed to infer the relationship between radio refractivity and frequency modulated radio signa

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