Retracing the Cold Plasma Dispersion Law in Pulsar B0329+54: New Insights into Frequency-dependent Dispersion Measures by Shyam S. Sharma, Tetsuya Hashimoto, Tomotsugu Goto, Shotaro Yamasaki, Simon C.-C. Ho

“…Utilizing the extensive bandwidth of the upgraded Giant Metrewave Radio Telescope, we conducted simultaneous observations of this pulsar across a frequency range of 300–1460 MHz. …”
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An Approach to Reduce Tuning Sensitivity in the PIC-Based Optoelectronic Oscillator by Controlling the Phase Shift in Its Feedback Loop by Vladislav Ivanov, Ivan Stepanov, Grigory Voronkov, Ruslan Kutluyarov, Elizaveta Grakhova

“…Radio photonic technologies have emerged as a promising solution for addressing microwave frequency synthesis challenges in current and future communication and sensing systems. …”
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Myocardium Assessment by Relaxation along Fictitious Field, Extracellular Volume, Feature Tracking, and Myocardial Strain in Hypertensive Patients with Left Ventricular Hypertrophy by Seyed Amir Mirmojarabian, Eveliina Lammentausta, Esa Liukkonen, Lauri Ahvenjärvi, Juhani Junttila, Miika T. Nieminen, Timo Liimatainen

“…Relaxation time mapping (T1, T1ρ, and TRAFF2 with 11.8 μT maximum radio frequency field amplitude) was performed at 1.5 T using a Siemens Aera (Erlangen, Germany) scanner equipped with an 18-channel body array coil. …”
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Implicações políticas na pesquisa-intervenção com jovens by Veriana de Fátima Rodrigues Colaço, Karla Galvão Adrião, Jaileila de Araújo Menezes

“…Discutiremos sobre três estudos realizados com jovens em contextos diferentes, porém semelhantes quanto às suas condições de existência, marcadas pela exclusão social, violência e discriminação de gênero, de raça, de local de moradia e de classe social. …”
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DRŽAVNO PITANJE U TEORIJSKOJ MISLI SLOBODANA JOVANOVIĆA by Predrag Terzić, Ivan Joksić

“…On je raspravnim stilom studiozno obradio pitanje države, uvažavajući teorijska dostignuća svojih prethodnika i savremenika. …”

O Rio de Janeiro na CPI do Narcotráfico de 1999/2000 by Antônio Luz Costa

“…De modo que ele não é uma rede com autonomia própria e/ou com capacidade de se reproduzir somente com alguns elementos recolhidos da falta de estrutura urbana, das precárias condições sociais de educação e moradia, por exemplo. Ele se reproduz com auxílio de uma rede que envolve trocas consideradas moral e politicamente válidas, lícitas. …”
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PRIORITIZATION OF WATERSHEDS FOR RUNOFF RISK AND SOIL LOSS BASED ON MORPHOMETRIC CHARACTERISTICS USING COMPOUND FACTOR AND TOPSIS MODEL by Khalid Muhammad

“…The watershed lies under the low level of priority encompasses (Sactan, Khrisaraw, Bardarash, Miradie, Jublakh, Sirie, Chami-Astel, Haladin, and Bakhisarw). …”
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As condições de reprodução da força de trabalho no Brasil e as estratégias extraeconômicas de subsistência entre 2021 e 2022 by Mizzaely Lacerda

“…Por fim, o artigo identifica que, na impossibilidade de satisfazer suas despesas básicas, as famílias têm recorrido a estratégias extraeconômicas, como o consumo energético de lenha, a agricultura familiar e a autoconstrução de moradia. …”
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Using idle TDMA slots for retransmitting packets cooperatively in VANET by Zhen CHEN, Jiang-hong HAN, Yong YANG, Zheng-yu LIU, Yang LU

“…The distributed TDMA approach for VANET dose not take advantage of idle slots,failing to effectively utilize radio resources.A retransmission method for medium access control was proposed for utilizing idle slots.In the method,neighboring nodes utilized idle slots for retransmitting a packet which failed to reach the target receiver.Theoretical analysis and simulation results show that the proposed method significantly increases the probability of successful packet transmission and the network throughput.In addition,a comparison between the proposed method and IEEE 802.11p was presented via extensive simulation,and the results prove that,due to its ability to access channel determinately,the method can disseminate real-time safety information timely and stably.…”
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Optical wireless communication and internet of things by Zaichen ZHANG, Xiaohu YOU, Jian DANG, Liang WU, Bingcheng ZHU, Ji CHEN, Lei WANG

“…Optical wireless communication (OWC) entitles many advantageous properties such as unlicensed spectrum, high electromagnetic compatibility, compared with its radio frequency wireless counterpart, which enables it to be a potential important driving factor for the diverse developments of future internet of things (IoT).Starting from the optical sources and optical devices, some basic principles and limitations of OWC were introduced.Then, some key technologies, including channel modeling, signal modulation, array communication and high-precision positioning were discussed.Based on those and according to the requirements on peak data rate, sensing precision, energy transfer and security and confidentiality of the next generation IoT, the role of OWC as a technological enabler for next generation IoT was analyzed.Finally, related conclusions were given.…”
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Distributed energy efficient beamforming algorithm for multicell multiuser downlink system by Wen-yang CHEN, Shi-wen HE, Yong-ming HUANG, Lv-xi YANG

“…A distributed energy efficient beamforming algorithm was studied for multicell multiuser downlink communication system.Firstly,the energy efficient optimization problem was first considered as the maximization of the ratio between the system sum rate and the system power consumption.The fractional programming optimization target was then transformed into a subtractive form via using the fractional programming theorem.Secondly,the problem was decomposed into some subproblems that can be solved respectively by introducing the concept of the interference temperature in cognitive radio networks.Finally,an effective distributed energy efficient beamforming algorithm was proposed by exploiting the Lagrangian duality theorem and optimization theorem.Compared to the classical energy efficient optimization algorithm,the proposed algorithm can achieve an obvious energy efficiency performance gain.…”
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Comments on media trends in South Africa based on AMPS 1976-1980 by Thomas Oosthuizen

“…This trend is observed in daily newspaper reading (although there was a slight decrease for blacks in the last year), radio listening, television viewing and cinema attendance, even though it is slight in instances. …”
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A Novel Beam Downtilt Selection Method for 3D Active Antenna System Based Cellular Network by Kai Wang, Liang Zhang, Guoping Tan

“…Traditional 2D active antenna system can only carry on horizontal beam steering in cellular mobile radio system. The existing 3D active antenna system based cellular network can obtain large throughput gain with the use of vertical beam steering. …”
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Node localization algorithm based on kernel function and Markov chains by ZHAO Fang1, LUO Hai-yong2, LIN Quan3, MA Yan4

“…To position indoor objects accurately and robustly,a novel node localization based on kernel function and Markov chains was presented,which employs Bayesian filter framework and radio fingerprinting technology.It uses kernel function to construct likelihood function to take full advantage of the similarity between observation and several training samples,which avoids the error brought by employing a priori determined distribution model.Furthermore,the proposed algorithm uses Markov chains to improve the localization accuracy and shorten the positioning time.It limits the search space of the matching grids with object’s previous state and the environment layout,and refuses the object’s impossible position jump during the moving process.Experiments confirm that the proposed localization outperforms the algorithm with Gaussian distribution model.…”
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Pobreza y migraciones en una ciudad intermedia argentina. Una mirada desde la historia (Neuquén, 1980) by Joaquín Perren

“…En tér - minos metodológicos, este estudio emplea la información que brinda el Censo Nacional de Población y Vivienda de 1980 por radio censal. Al mismo tiempo, y con el propósito de detallar muchos de los fenómenos que se analizan, se presentan cartografías temáticas que fueron elaboradas utilizando sistemas de información geográfica, y en particular el programa ArcView GIS 3.3.…”
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Study on Air Interface for Macbine-Type Communication over LTE-Advanced Network by Minghao Wu, Ziwei Zheng

“…With the widespread deployment and use of MTC（machine-type communication）devices,MTC has been closely integrated with the mobile communication network.Significant increase in the number of MTC devices causes more strict requirements for communication system.According to the characteristics of MTC communication and the development trend,three key areas of MTC in current LTE-Advanced network were discussed:RAN overload contro1,efficient radio resource allocation and energy savings.Several research challenges that need to be addressed for scalable support of MTC devices for R12 and beyond were summarized,typical optimization methods and solutions were introduced,and corresponding improvement directions according to the current application status were put forward.…”
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Service-oriented dynamic resource configuration optimization scheme in RFID system by Jian-hua LIU, Wei-qin TONG

“…Aiming at the defect that the rate between tag and reader was not match and their resource-constrained problem in the radio frequency identification(RFID)systems,the collaboration communication context was analyzed theoretically.Service-oriented dynamic resource configuration optimization scheme of RFID system was proposed which used the component quality of service(QoS) information of tag and reader to establish closed-loop control framework and developed three control strategies to adjust QoS parameter according to the state and type of its resources.The scheme was analyzed and validated for performance through experiments.The numerical experiments results show that the optimization mechanism make throughput of RFID systems improve,use resources efficiently and reduce the energy consumption and interference of reader-to-reader.…”
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Adaptive co-site interference cancellation algorithm with multiple virtual references by Yue-lei XIE, Jie LIU, Min-zheng LI, Shan OUYANG, Gui-sheng LIAO

“…Wireless radio communication is usually deteriorated by co-site interferences produced by collocated transmitters.A two-stage adaptive filter with multiple virtual references that drew from over sampled receiving signal is proposed to cancel the co-site interferences.Co-site interferences can be cancelled and the desired signal can be recovered by adjusting the weights of the first filter when pure interferences are received and adjusting the weights of the second filter when the desired signal is consisted in received signals.The simulation results show that the proposed adaptive co-site interferences cancellation algorithm without the coupling device can achieve better performance than traditional algorithms.…”
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Preparing to Evacuate your Home in Case of an Emergency by Elizabeth B. Bolton

“…Most of the time these requests and related information will come through radio broadcasts or the local TV station. Different warning methods may be used such as a siren or telephone calls. …”
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« Notre histoire compte » : Transmettre l’histoire des mouvements féministes et lesbiens à Genève by Carolina Topini, Isabelle Salem Diego Sentis

“…The contribution creates a visual journey and a soundscape to introduce the reader to some pivotal moments of this little-known history: the provocative actions of the WLM-Geneva; the famous « bals des chattes sauvages »; the launch of the lesbian magazine Clit 007 (1980-1986); the 1982 «Goudou-Manif»; the radio broadcasts Sappho Revient and Canicule (1980s-1990s); the 8th ILIS conference in Geneva in 1986; the cafes, bars and nightclubs; the creation of the Natalie Barney Women's Center and Lestime.…”
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