Large dynamic range microwave photonics mixing system based on parallel DPMZM by Yongsheng GAO, Fangjing SHI, Jiajun TAN, Yangyu FAN

“…To solve the problems of nonlinear distortion and limited dynamic range of microwave photonics mixing system, a large dynamic range microwave photonics mixing system based on parallel dual parallel Mach-Zehnder modulator (DPMZM) was proposed.The parallel modulation of radio frequency and local oscillator signals was realized by using DPMZM.The third-order intermodulation distortion (IMD3) in the output intermediate frequency signal was eliminated by configuring the electro-optic modulation index of the two parallel channels and the working point of the modulators.Finally, the dynamic range of the system was improved.Simulation results show that the proposed scheme can suppress IMD3 by 17.7 dB and increase the SFDR to <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML"> <mn>127.8</mn><mtext> dB</mtext><mo>·</mo><msup> <mtext>Hz</mtext> <mrow> <mfrac> <mn>4</mn> <mn>5</mn> </mfrac> </mrow> </msup> </math></inline-formula> .…”
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Dual time scale resource allocation for RAN slicing in software-defined oriented polymorphic IoV by Weijing QI, Qingyang SONG, Lei GUO

“…To effectively meet the differentiated quality of service (QoS) requirements of various vehicular applications, a dual time scale resource allocation algorithm for radio access network (RAN) slicing in software-defined polymorphic Internet of vehicles (IoV) was proposed.Considering the constraints of the minimum rate requirement of enhanced mobile broadband (eMBB) slice users, vehicle-to-vehicle (V2V) link reliability, the maximum power of nodes, the maximum number of RBs, a joint optimization problem of caching, spectrum, power allocation was formulated, with the aim of minimizing the average delay of ultra-reliable and low-latency communication (URLLC) slice users.By using the Hungarian algorithm, linear integer programming method and the double deep Q-Learning network (DDQN) algorithm, the original NP-hard problem was solved in dual time scales.The simulation results show that the proposed algorithm is superior to the traditional algorithm in ensuring the QoS requirements of different slice users and improving the spectrum utilization.…”
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Performance analysis of RIS-assisted mixed RF/THz system by Sai LI, Liang YANG, Qimei CUI, Siyuan YU

“…To solve the problem of the short transmission distance of terahertz (THz) links, the performance of the reconfigurable intelligent surface (RIS)-assisted mixed dual-hop radio frequency (RF)/THz system was studied.An RIS was used to enhance signal strength, thereby improving the system performance.Using the fixed-gain amplify-and-forward protocol, the cumulative distribution function and probability density function of the end-to-end signal-to-noise ratio of the RF/THz link were derived.Capitalizing on the statistical characteristics, the analytical expressions of outage probability, average bit error rate, and average channel capacity of the mixed relaying system were further derived.In addition, the asymptotic analyses of the outage probability and the average bit error rate were carried out to obtain the diversity order of the mixed RF/THz system.Simulation results show that the RIS can effectively improve the performance of the mixed RF/THz system.Furthermore, the system performance is related to the channel fading, pointing errors, and propagation distance.…”
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Monitoring the media by John van Zyl

“… The Media Monitoring Project (MMP) was the leading organisation monitoring the total output of news in radio, television and print before and during South Africa's first democratic elections in April 1994. …”
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Influencers and influencer marketing – indispensable part of the business of modern companies by Diana Karakaš, Hrvoje Zovko

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Research on Protection Distances for Interference Between Earth Stations——Protection Distances for Interference from Fixed-SateIIite Earth Stations to Space Research Earth Stations... by Jianxin Li, Wenhan Yang

“…Fixed-satellite service earth stations and space research service earth stations parameters in the 8 400～8 500 MHz band were introduced.Then the interference from fixed-satellite earth stations to space research earth stations was examined and the required separation distances for protection of space research earth stations were calculated.For the protection of space research earth stations,both the non-geostationary-satellite and geostationary-satellite systems using maximum equivalent isotropically radiated power spectral density values allowed per“Radio Regulations”were covered.The result shows that required separation distances in the range from 542 km to 582 km around near-earth space research service earth stations would need to be established in order to meet the protection criteria of the near-earth space research earth station.…”
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Design of a Regulated DC Power Supply. by Twinomugisha Jackline

“…The project is guided by the following objectives which are to design a regulated dc power supply that can be used to charge phones, power radio and decoders,To simulate the circuit using multism-, to reduce the costs incurred in having unregulated power flow and to test the circuit. …”
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ASOCIACIONES CROMÁTICAS EN MEXICANOS by Lilia R. Prado León, Rosalío Avila Chaurand, Rosa A. Rosales Cinco

“…Los c olores que recibieron entre 5% y 10% de significados fueron: plata-luminosidad, lila- sexualidad y morado-actividad.…”
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Management of strangulated inguinal hernias in a district hospital: About 73 cases by Haboubacar Maman Boukari, Abdoulaye Maman Bachir, Adakal Ousseini, Rouga Mohamed Mohamed, Maikassoua Mahaman, Harissou Adamou, Lassey James Didier, Sani Rachid

“…METHOD: This was a cross-sectional study with prospective descriptive and analytical collection carried out in the General Surgery Department of Tessaoua District Hospital (Maradi, Niger), covering patients operated on for strangulated inguinal hernias managed from January 2020 to February 2022. …”
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THE CONSEQUENCES OF KIDNAPPING ON THE COMMUNITY: A CASE STUDY OF ZURMI, ZAMFARA STATE by FAISAL MUHAMMAD

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

“…The three films also demonstrate what Stuart Hall considers to be the connection that cultural studies seeks to make to matters of power and cultural politics.3 With regards to the role of Fálétí as pioneer in the area of radio-vision cultural industries the broadcasting mogul narrated the manner in which he pioneered the phone-in radio broadcast in Nigeria on the programme “Ѐyí Àrà” at the Broadcasting Corporation of Ọyọ̀ ́ State, Ibadan (BCOS) after pioneering Yorùbá broadcasting on Africa’s first television station Western Nigeria Television (WNTV) twenty years earlier.4 Fálétí’s career spanning close to seven decades dovetails public services with private engagement with drama production. …”
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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.  …”
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Optimising (re-)irradiation for locally recurrent head and neck cancer: impact of dose-escalation, salvage surgery, PEG tube and biomarkers on oncological outcomes—a single centre... by Julia Katharina Schleifenbaum, Janis Morgenthaler, Shachi Jenny Sharma, Jens Peter Klußmann, Philipp Linde, Simone Wegen, Johannes Rosenbrock, Christian Baues, Emmanouil Fokas, Richard Khor, Sweet Ping Ng, Simone Marnitz, Maike Trommer

“…Methods This analysis includes 101 LR-HNSCC patients treated with RT, radio-chemotherapy (RCT) or radio-immunotherapy (RIT) between 2010 and 2018 at a high-volume tertiary centre. …”
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Optimization design of liquid crystal-based reconfigurable intelligent surface-assisted indoor visible light communication systems by Lisu YU, Xinxin LÜ, Run ZHONG, Mingli ZHANG, Zhenghai WANG, Yuhao WANG

“…Visible light communication (VLC) is a promising technology for sixth-generation (6G) networks, offering a broad, license-free spectrum, enhanced security, and protection from radio frequency (RF) interference. This makes VLC an excellent complement to traditional RF communication. …”
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Towards a cervical cancer-free future: women’s healthcare decision making and cervical cancer screening uptake in sub-Saharan Africa by Bright Opoku Ahinkorah, Abdul-Aziz Seidu, Richard Gyan Aboagye, Bernard Yeboah-Asiamah Asare, Joshua Okyere, Bupe Mwamba

“…Therefore, policy interventions should focus on empowering women to be able to take autonomous healthcare decisions or shared decision making while targeting subpopulations (ie, multiparous and rural-dwelling women, as well as those in other religious affiliations aside from Christianity) that are less likely to uptake cervical cancer screening. Also, the radio and print media could be leveraged in raising awareness about cervical cancer screening to accelerate cervical cancer screening uptake in sub-Saharan Africa.…”
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Parabolic Equation Modeling of Propagation over Terrain Using Digital Elevation Model by Xiao-Wei Guan, Li-Xin Guo, Ya-Jiao Wang, Qing-Liang Li

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Analysis of Electromagnetic Interference Effect of the Pulse Interference on the Navigation Receiver by Xin Huang, Yuming Wang, Yazhou Chen

“…Aiming at the problem that satellite navigation signals are easily interfered by the radio frequency (RF) pulse signal, the electromagnetic interference effect of RF pulse on the navigation receiver is studied in this paper. …”
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Research progress and trends of deep learning based wireless communication receiving method by Panpan LI, Zhengxia XIE, Guangxue YUE, Xin LIU

“…With the continues expansion of the application boundary for wireless communications, the application environment of wireless communications is becoming increasingly complex and diverse, which faces negative impacts such as radio frequency (RF) damage, channel fading, interference and noise.It brings difficulties to recover the original information at the receiver.Drawing from the research results of deep learning methods in computer vision, pattern recognition, natural language processing and other fields, wireless communication reception technology based on deep learning has received wide attentions from both academia and industry.Firstly, the current research status of wireless communication reception technology based on deep learning at home and abroad was described.Secondly, the current technical challenges of wireless communication reception in the context of signal big data were outlined, and a reference architecture of intelligent wireless communication reception based on deep neural network was proposed.Finally, the development trend of intelligent wireless communication reception method in the context of signal big data was discussed.It is expected to provide reference for the research and development of wireless communication technology based on deep learning.…”
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Outage performance analysis of IRS-aided cognitive satellite-terrestrial network by Min LIN, Huaibo GUO, Xiaoyu LIU, Lue HAN, Miaomiao TAN, Lyuxi YANG

“…The outage performance of intelligent reflecting surface (IRS) aided cognitive satellite-terrestrial network was analyzed.Firstly, for the scenario where the point beam was enabled at the satellite to serve the earth station, and the IRS and non-orthogonal multiple access (NOMA) were deployed at the base station to expand the communication range and serve multiple users, respectively, under the condition that cognitive radio technology was employed to enable spectrum sharing between the satellite primary network and the terrestrial secondary network, an optimization problem was established to maximize the average signal-to-noise ratio of terrestrial users.Secondly, a low complexity IRS phase shift design was proposed by using channel state information based on the angle domain, and the phase shift matrix of IRS was obtained.Then, the closed-form expressions of outage probabilities of terrestrial users were derived when users were static and moving, respectively.Furthermore, the asymptotic outage probability formulas at high signal-to-noise ratio were also derived to analyze the system performance.Finally, the correctness of derivation and the influence of main parameters on outage performance were verified by computer simulations.…”
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Indicadores de conexão informacional na Comunidade Fluvial Rolim de Moura do Guaporé – Rondônia by Aldenilson Costa, Fernanda Santos Estrada, Maria Aguiar Pacheco, Nubia Caramello

“…The group of researchers was surprised by the percentage of respondents who use radio, television as a source of information and cell phones as a source of communication to work, study, communicate among others, understanding that digital inclusion can break some geographical barriers and make any city inserted in the resources that globalization offers, in the case of the traditional community under analysis the technological instrument that opens the door to the external territorial dimension is the use of cell phones. …”
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