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321
Delay-Modulated RF Tag System Concept Using Ultrawideband Noise Radar Waveforms
Published 2011-11-01“…Radio frequency (RF) tags have been widely used in inventory tracking, environmental monitoring, battlefield situational awareness, and combat identification due to their low cost, small size, and wireless functionality. …”
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322
Delay-optimal spectrum decision method for cognitive network
Published 2012-11-01“…Spectrum decision was investigated within the confine of spectrum management framework for cognitive radio networks.Sensing errors in PHY layer,outage probability on wireless channel and multiple interruptions of primary user were taken into consideration.Probability-based and sensing-based spectrum decision methods were proposed,which were capable of balancing traffic evenly among licensed.For the probability-based method,short-time first discipline was employed to further shorten average residual time,closed-formed expression were presented based on dynamical programing.For the sensing based method,new channel could be chosen for uncompleted transmission,which alleviated the time spent in waiting primary user.Optimal residual time was obtained by choosing the minimal value of the two methods.Furthermore,spectrum heterogeneity was taken into consideration and theoretical analysis was of general sense.Simulation results validate the approach is efficient.…”
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323
A Compact RFID Reader Antenna for UHF Near-Field and Far-Field Operations
Published 2013-01-01“…A compact loop antenna is presented for mobile ultrahigh frequency (UHF) radio frequency identification (RFID) application. …”
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324
ONLINE VS TRADITIONAL; MARKETING CHALLENGE IN THE TELECOM MARKET IN BOSNIA AND HERZEGOVINA
Published 2018-05-01“…Social networks are the marketing communication medium preferred by most of the telecomm users in BiH, followed by television, billboards, text messages, company web page, web advertisements, newspapers, e-mail, and the radio. The results presented in this paper consider consumers’ behavior in one of the most dynamic BiH sectors, and provide an insight in the specific media channel of marketing communication. …”
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325
PERCEPTION OF PUBLIC RELATIONSHIP OF THE NIGERIA POLICE AS A LAW ENFORCEMENT INSTITUTION AMONG BENIN RESIDENTS
Published 2024-12-01“…Therefore, most importantly the study recommended, among others, the need for Edo State Police Command to put up a public relations programme on the radio and television to enlighten the public on the importance of police public relations, highlight the activities of the police and elicit the support of the public. …”
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326
Surgical Management of Giant L2 Adrenal Neuroblastoma in Adult Male
Published 2020-01-01Get full text
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327
Efficiency Improvements of Antenna Optimization Using Orthogonal Fractional Experiments
Published 2015-01-01“…This paper presents an extremely efficient method for antenna design and optimization. …”
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328
Statistical Modeling of Ultrawideband Body-Centric Wireless Channels Considering Room Volume
Published 2012-01-01“…This paper presents the results of a statistical modeling of onbody ultrawideband (UWB) radio channels for wireless body area network (WBAN) applications. …”
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329
A Summary of National Oceanic and Atmospheric Administration Space Weather Prediction Center Proton Event Forecast Performance and Skill
Published 2021-07-01“…Abstract The effects of solar radiation storms at Earth are felt across a number of technology‐based industries. Energetic particles present during these storms impact electrical components on spacecraft, disrupt high frequency radio communications, and pose a radiation risk for passengers and crew on polar flight routes, as well as for astronauts. …”
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330
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331
Deploying and Managing a Network of Autonomous Internet Measurement Probes: Lessons Learned
Published 2015-10-01“…In the last decade we have seen a transition over a multitude of data transmission technologies, from EDGE, UMTS, and HSPA to LTE, with 5G already on the horizon. This presents an extremely heterogeneous environment where problems are difficult to pinpoint, because of either the fast changing radio channel conditions, daily mobility of the user base, or a number of fallback technologies that are available at a specific location and chosen by the terminal itself. …”
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332
Authority and Moral Conflicts in the Films of Adébáyọ Fálétí: Àfọ̀njá, Gáà, Ṣawo Ṣẹ̀gbẹ̀rì and the Yorùbá Cosmopolis
Published 2021-12-01“… In this piece, I examine the role of authority in Yorùbá society and how au[1]thority is subverted by moral conflicts generated in the political evolution of the Yorùbá state from city state to empire, leading to disastrous consequences in the society at large as presented in the films of Adébáyọ Fálétí, specifically in Àfọnjá (2002), Basọrun Gáà (2004) and Ṣawo Ṣẹgbẹ ̀ rì̀ (2005). …”
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333
Julius Kruopis – the pioneer of applied statistics in Lithuania
Published 2023-12-01“…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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334
The Value of Cryosurgery in Treating a Case of Thoracic Chondrosarcoma
Published 2011-01-01“…The tumor is radio- and chemoresistant, making the surgical treatment of utmost importance. …”
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335
A QoS Aware Resource Allocation Strategy for 3D A/V Streaming in OFDMA Based Wireless Systems
Published 2014-01-01“…The main limitation of 3D video streaming over a wireless system is the shortage of radio resources due to the large size of the 3D traffic. …”
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336
A Review of Antenna Array Technologies for Point-to-Point and Point-to-Multipoint Wireless Communications at Millimeter-Wave Frequencies
Published 2021-01-01“…Particular focus is put on the review of the state-of-the art and most advanced antenna array concepts for point-to-point and point-to-multipoint radio links at said frequencies. Various figures of merit are assessed for a comprehensive analysis and bench marking of the technical solutions investigated in the presented survey.…”
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337
A Multicomponent Magnetic Proxy for Solar Activity
Published 2021-12-01“…Abstract We present a new, multicomponent magnetic proxy for solar activity derived from full disk magnetograms that can be used in the specification and forecasting of the Sun’s radiative output. …”
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338
Performance analysis of mixed FSO-RF transmission in UAV relay communication systems
Published 2022-04-01“…A mixed free space optical (FSO)-radio frequency (RF) transmission was studied in the multiuser unmanned aerial vehicle (UAV)-aided terrestrial network.Specifically, a novel beamforming (BF) scheme was proposed based on the available statistical channel state information (CSI), and the outage performance of the considered system was analyzed.In this mixed framework, the link between the base station and the UAV employs the FSO technology, while aerial-terrestrial links use RF technology.To achieve the space division multiple access (SDMA) in RF links.First of all, the available statistical CSI was proposed, and a novel beamforming (BF) scheme was proposed to suppress the inter-user interference so that all the users can be served simultaneously.Then, based on the assumption that the FSO and RF links follow the Gamma-Gamma fading and Nakgami-m fading respectively, an analytical expression was derived for the outage probability (OP) of the considered system.Furthermore, the asymptotical OP expression in high signal-to-noise ratio regime was presented to evaluate the achievable diversity order.Finally, numerical results were given to confirm the validity of our theoretical analysis and the superiority of the proposed scheme.…”
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339
Research on the Power Flux-Density at the Earth’s Surface Produced by Emissions from the Fixed Beam of NGSO Constellation System
Published 2022-03-01“…The power fl ux-density is an interference criterion for protecting terrestrial service systems from non-geostationary orbit (NGSO) constellation systems.Based on the defi nition of power fl ux density(PFD), a calculation method on the PFD produced by the emissions from the fi xed beam of NGSO constellation system was given.On the basis of describing the PFD constraint conditions of the NGSO fi xed-satellite service system given by ITU, a method for determining the limits of PFD from the NGSO constellation system was presented.Taking the Starlink system as the typical scenario, the PFD produced by telemetry, tracking, and control (TT&C) beam of the Starlink system was analyzed.The results showed that the analytical results of the given method were consistent with those of the Starlink system, and the PFD of TT&C beam in the 18.55-18.6 GHz frequency band exceeded the limit given in radio regulations.Under the current ITU framework, the number of the satellite constellation is a decisive factor for the legal use of the Ka band by NGSO constellation system.…”
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340
A Novel Decentralized Scheme for Cooperative Compressed Spectrum Sensing in Distributed Networks
Published 2015-08-01“…However, the computation overhead incurred by compressed reconstruction is nontrivial, especially in a power-constrained cognitive radio (CR). Moreover, additional information, which is generally unavailable in practice, is needed in conventional CS-based wideband spectrum sensing schemes to improve the reconstruction quality as well as the detection performance. …”
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