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1641
Research on endogenous security data sharing mechanism of F-RAN for 6G
Published 2021-01-01“…In order to solve the data security problem of data sharing in the fog radio access network in the 6G mobile communication system, an endogenous secure data sharing mechanism that realized local differential privacy and dynamic batch auditing was proposed.First, the user ran the RAPPOR algorithm locally on the data to protect data privacy.Next, the fog access point cached and preprocessed the data.Then the high power node performed a data integrity audit based on the BLS signature and Merkle hash tree on the data cached on the fog access point.Finally, the BBU pool infered the original distribution of shared data through statistical analysis.Security analysis and simulation show that the proposed mechanism realizes the local differential privacy of users, supports secure multi-client batch audit and data dynamic operation, and has high efficiency in time, space and communication.…”
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1642
First Mid-infrared Detection and Modeling of a Flare from Sgr A*
Published 2025-01-01“…The time-variable emission from the accretion flow of Sgr A*, the supermassive black hole at the Galactic center, has long been examined in the radio-to-millimeter, near-infrared (NIR), and X-ray regimes of the electromagnetic spectrum. …”
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1643
Retained Intraabdominal Gossypiboma, Five Years after Bilateral Orchiopexy
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1644
A vueltas con el federalismo español: Pi y Margall, Proudhon y Hegel
Published 2008-04-01“…El principal, el espejo en el que el federalismo español siempre se ha mirado es Pi y Margall, y por ello, como se decía, no es de extrañar que buena parte de dichos estudios vuelvan a él buscando –indirectamente- respuestas o soluciones al problema de los nacionalismos o de la acomodación de la plurinacionalidad en la España contemporánea. …”
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1645
ARTESÃO INDUSTRIAL INDEPENDENTE: AUTONOMIA OU SUBSUNÇÃO AO CAPITAL
Published 2019-09-01“…Como resultado da pesquisa, observou-se que o trabalho desenvolvido nas unidades de produção assemelha-se ao artesão industrial independente pelos seguintes aspectos: local de trabalho anexo à moradia; propriedade dos meios de produção; conhecimentos técnicos, científicos e do processo produtivo; autonomia de ter ideia, de escolha no processo produtivo e do controle do tempo; cooperação simples, solidária e comunitária; e o trabalho como reprodução ampliada de vida; o ensino de crianças e jovens. …”
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1646
ANTE GLAVIČIĆ, ČUVAR I PROMICATELJ SENJSKE POVIJESNE I KULTURNE BAŠTINE – DRAGI SENJANIN I PRIJATELJ
Published 2013-01-01“…Veselio se je neovisnoj, slobodnoj Hrvatskoj za koju je svim svojim duhovnim i fizičkim silama radio, čije je ostvarenje i pripremao. Posebno vrijedi istaknuti činjenicu da je dobro iskoristio ogromni potencijal Senjana "u svitu" i senjskih prijatelja, istaknutih intelektualaca, znanstvenika i društveno utjecajnih ličnosti, kao i značenje Senja i njegove baštine u nacionalnim i širim razmjerima. …”
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1647
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1648
Development of Tandem Ion Mobility Spectrometry with High-voltage Fragmentation Unit at Atmospheric Pressure for Explosives Detection
Published 2025-01-01“…To address this issue, referencing collision-induced dissociation (CID) in mass spectrometry, explosives can be similarly dissociated under atmospheric pressure through radio frequency strong electric fields. This process generates rich secondary fragment ions, conferring mobility spectra with structural information of the analyte. …”
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1649
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1650
A SIC and ML approach for MIMO non-orthogonal multiple access signal detection
Published 2025-02-01“…One of the top candidates for an enhanced radio architecture is Optical Non-Orthogonal Multiple Access (O-NOMA), which is based on Multiple inputs and Multiple Outputs (MIMO). …”
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1651
Forecasting the Remaining Duration of an Ongoing Solar Flare
Published 2021-10-01“…Abstract The solar X‐ray irradiance is significantly heightened during the course of a solar flare, which can cause radio blackouts due to ionization of the atoms in the ionosphere. …”
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1652
Connectivity Analysis for Free-Flow Traffic in VANETs: A Statistical Approach
Published 2013-10-01“…Intervehicle communication gives vehicles opportunities to exchange packets within the limited radio range and self-organized in Ad Hoc manner into VANETs (Vehicular Ad Hoc Networks). …”
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1653
Universality and scaling in networks of period-doubling maps with a pacemaker
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1654
Hybrid precoding based on distributed partially-connected structure for multiuser massive MIMO
Published 2022-01-01“…For multiuser massive multiple-input multiple-output (MIMO) systems, to solve the problem of underutilized spatial resources caused by centralized partially-connected structure (PCS) and fixed-matching phase-control algorithm in conventional schemes, a low complexity phased zero-forcing (PZF) hybrid precoding scheme based on distributed PCS was proposed.The logical antenna subarrays with more than the number of radio frequency (RF) chains were designed, so that each RF chain could be connected to multiple distributed subarrays to provide higher spatial diversity gain.Further, by analyzing the influence of phase-control analog precoding on zero-forcing digital precoding, a phase-control analog precoding algorithm via successively maximizing users’ total subarray gains was proposed to maximize the upper bound of system spectral efficiency.Analysis and simulation results show that, compared with the conventional schemes, the proposed scheme can significantly improve the system spectral efficiency while slightly increases the computational complexity, and it is also insensitive to imperfect channel state information.…”
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1655
Rethinking body language in terms of power relations
Published 2022-11-01“…It comple ments other aspects of communication studies, which have hitherto tended specifically to concentrate on studies of television, radio, news papers, film, magazines and other media, or on studies of Interper sonal communication…”
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1656
Quand « l’exception » confirme la règle. L’encadrement juridique de la liberté de la presse écrite au Maroc
Published 2016-12-01“…The Constitution grants the freedom of expression nonetheless, unofficial red lines limit such right in practice. Mass media, the radio and TV, were for long monopolized by the state; however, since 2005, they have been opened to private stakeholders. …”
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1657
A Dual-Cycle Architecture in Cognitive M2M Wireless Networks
Published 2013-11-01“…In this paper, the DCCM is considered to construct cognitive wireless netwroks, in which the structure and implementation of service-oriented radio architecture (SORA) are expounded. Using SORA, a DCCM-based wireless resource management is considered in design and implementation of cognitive wireless networks. …”
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1658
Wideband and UWB Antennas for Wireless Applications: A Comprehensive Review
Published 2017-01-01“…The performances of small, low-profile, and dielectric resonator antennas are illustrated paying particular attention to the application areas concerning portable devices (mobile phones, tablets, glasses, laptops, wearable computers, etc.) and radio base stations. This information provides a guidance to the selection of the different antenna geometries in terms of bandwidth, gain, field polarization, time-domain response, dimensions, and materials useful for their realization and integration in modern communication systems.…”
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1659
Wi-freshness: research on CSI-based pork freshness detecting system
Published 2023-06-01“…Effective and rapid detection of pork freshness is important for pork quality.However, traditional sensory evaluation methods are too subjective, physical and chemical analysis methods are time-consuming and destructive.Recently, radio frequency is widely used in the field of location, material identification and human body monitoring, while, the meat freshness detection is ignored.A real-time, non-destructive and low-cost system for pork freshness detecting based on channel state information (CSI) was proposed.It is a new application of internet of things in the field of fresh agricultural products based on ubiquitous network (commercial Wi-Fi).The proposed Wi-freshness consists of four modules: CSI data sensing, data pre-processing, detection modelling and freshness detection.Considering the need for Wi-freshness data characteristic value processing is not much, and high demand for real-time prediction characteristics, a detection model based broad learning system (BLS) was proposed.Experiment shows that Wi-freshness system can achieve more than 93% detection accuracy.…”
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1660
Design of polling access control protocol in WSN based on FPGA
Published 2016-10-01“…MAC(media access control) protocol is a direct link between physical and network layer,which is one of the key protocols to ensure high efficient communication.According to the characteristics of WSN (wireless sensor network) nodes,the design and implementation of polling access control protocol based on FPGA (field programmable gate array) were presented for the first time.The design made full use of the characteristics of flexibility and reconfigurability of FPGA.The method of combination of the hardware circuit description language Verilog HDL and the principle diagram was adopted,using Quartus II 8.0 to carry on the synthesis and routing,testing in the DE2.The design has the characteristics of good real-time,high reliability,strong portability,and can effectively reduce the transmission delay and improve the bus utilization.The designed system can be widely used in WSN,software radio network,ad hoc networks,military integrated service network,mobile communications networks,Internet of things as well as other fields.…”
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