Results 81 to 90 of about 396,378 (275)
Performance Comparison of Hybrid Switch, Phase Shifter and Lens Network over Hybrid Beamforming in Millimeter Wave Massive MIMO [PDF]
Iranian Journal of Electrical and Electronic EngineeringDue to cost and energy concerns with digital beamformers, much of the beamforming is done by hybrid beamformers in mm-wave (mm) massive multiple input multiple output (MIMO). Various works in hybrid beamforming structures considered either phase shifters,
Tadele A Abose +3 more
doaj
Hybrid Beamforming with Selection for Multi-user Massive MIMO Systems
, 2018 This work studies a variant of hybrid beamforming, namely, hybrid beamforming with selection (HBwS), as an attractive solution to reduce the hardware cost of multi-user Massive Multiple-Input-Multiple-Output systems, while retaining good performance ...
Bursalioglu, Ozgun Y. +3 more
core +1 more source
Synchrotron Radiation for Quantum Technology
Advanced Functional Materials, EarlyView.Materials and interfaces underpin quantum technologies, with synchrotron and FEL methods key to understanding and optimizing them. Advances span superconducting and semiconducting qubits, 2D materials, and topological systems, where strain, defects, and interfaces govern performance.
Oliver Rader +10 more
wiley +1 more source
, 2015 Transition-metal-oxide based resistance random access memory is a promising candidate for next-generation universal non-volatile memories. Searching and designing appropriate new materials used in the memories becomes an urgent task.
Guo, Zhonglu +3 more
core +1 more source
Fractional Skyrmion Tubes in Chiral‐Interfaced 3D Magnetic Nanowires
Advanced Functional Materials, EarlyView.In chiral 3D helical magnetic nanowires, the coupling between the geometric and magnetic chirality provides a way to create topological spin states like vortex tubes. Here, it is demonstrated how the breaking of this coupling in interfaced 3D nanowires of opposite chirality leads to even more complex topological spin states, such as fractional ...
John Fullerton +11 more
wiley +1 more source
Research on topological structure and simulation of hybrid DC circuit breaker
The Journal of Engineering, 2019 At present, the hybrid DC circuit breaker (ABB company's Hybrid DC circuit breaker as the representative scheme) must be equipped with the radiator because of a long-time current passing through the power electronic devices in the load-control-switch ...
Chu Zhuang +3 more
doaj +1 more source
Energies, 2020 In this paper, an accurate efficiency evaluation of an innovative three-switch double input DC−DC converter for hybrid vehicle applications was carried out. The converter was used to interface two storages, (e.g., supercapacitor and battery) to the
Mario Marchesoni +2 more
doaj +1 more source
Locality-Aware Hybrid Coded MapReduce for Server-Rack Architecture
, 2017 MapReduce is a widely used framework for distributed computing. Data shuffling between the Map phase and Reduce phase of a job involves a large amount of data transfer across servers, which in turn accounts for increase in job completion time.
Gupta, Sneh, Lalitha, V.
core +1 more source
Amplifiable hybridization probes containing a molecular switch
Molecular and Cellular Probes, 1997 In order to reduce background signals in Q beta replicase-mediated bioassays, a target-dependent probe amplification strategy has been proposed that utilizes recombinant RNA hybridization probes that contain an inserted molecular switch. A molecular switch is an internal region of the probe that undergoes a conformational change when the probe ...
H J, Blok, F R, Kramer
openaire +2 more sources
Advanced Functional Materials, EarlyView.HKUST‐1/TiO2 composite materials show a very high photocatalytic hydrogen evolution rate which increases as a function of the irradiation time until reaching a plateau and even surpasses the performance of the 1%Pt/TiO2 material after three photocatalytic cycles.
Alisha Khan +9 more
wiley +1 more source