Results 11 to 20 of about 489,542 (244)
Energies, 2023 A dynamic simulation model of a heliostat field and molten salt receiver system are developed on the STAR-90 simulation platform. In addition, a real-time simulation model coupling the above two models is built to study the photothermal conversion ...
Haoyu Huang +4 more
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Harmonic and reactive behavior of the quasiparticle tunnel current in SIS junctions
AIP Advances, 2016 In this paper, we show theoretically and experimentally that the reactive quasiparticle tunnel current of the superconductor tunnel junction could be directly measured at specific bias voltages for the higher harmonics of the quasiparticle tunnel current.
H. Rashid +3 more
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HIGH SENSITIVITY 0.5 TO 19.5 GHZ RECEIVER WITH 1.1-GHZ INSTANTANEOUS BANDWIDTH
Radio Physics and Radio Astronomy, 2014 A wideband high sensitivity microwave receiver operating within 0.5 to 19.5 GHz and providing a 1.1-GHz instantaneous bandwidth is described. The receiver shows a noise figure as low as 10 dB and the input third-order intercept point up to 10 dBm as well.
V. A. Volkov +3 more
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Toss differences between the slice serve and the kick serve in tennis
Acta Gymnica, 2015 Background: Pre-contact information of servers' motion is important for receiving players in tennis. Objective: The aim of this study is to examine whether serving players use the same ball toss for kick serve (KS) and slice serve (SS) at two different ...
Jan Carboch, Vladimír Süss
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Vojnotehnički Glasnik, 2015 In GPS receivers, navigation bit allocation is performed throughout the process of signal tracking and detection. In the process of signal tracking, the locally generated signal must be synchronized with the received signal. The Costas phase-locked loop (
Vlada S. Sokolović +2 more
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Impact of a Photodiode’s Angular Characteristics on RSS-Based VLP Accuracy
IEEE Access, 2020 Photodiode (PD)-based Visible Light Positioning (VLP)-based localisation systems seem propitious for the low-cost tracking and route-configurable navigation of automated guided vehicles, found in warehouse settings. Delivering the required high accuracy,
Sander Bastiaens +5 more
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التربية الرياضية, 2023 The aim of the research is to identify the impact of the blended learning strategy for those with outstanding performance in learning the skills of transmitting and receiving volleyball for students, as well as knowing the preference in the effect ...
muthnaa alqurary, ِAmira Moneer
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Journal of Civil Engineering and Management, 2011 As a radically distinct wireless communication approach compared to traditional narrow band systems, ULTRA-WIDE BAND (UWB) technology has been applied in various sectors and is gaining in popularity, but there appears to be a lack of systematic summary ...
Shaohua Jiang +4 more
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Operational experience of GNSS receivers with Chip Scale Atomic Clocks for baseline measurements
Geodesy and Cartography, 2018 Currently, one of the topical issues of improving GLONASS system is modernization of its uniformity measurement equipment, including RF measurement equipment and electronic length measurement equipment.
Alexander P. Karpik +4 more
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Research on Germanium Photodetector with Multi-Mode Waveguide Input
Photonics, 2023 In this work, a vertical N-I-P germanium (Ge) photodetector (PD) with a multi-mode waveguide input is presented. The fabricated devices exhibit a low dark current of 10 nA at bias of −1 V, and a high responsivity of exceeding 0.75 A/W over the wavelength
Longsheng Wu +4 more
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