Results 81 to 90 of about 72,402 (289)
Optimal Discrete Spatial Compression for Beamspace Massive MIMO Signals
, 2017 Deploying massive number of antennas at the base station side can boost the cellular system performance dramatically. Meanwhile, it however involves significant additional radio-frequency (RF) front-end complexity, hardware cost and power consumption. To
Jiang, Zhiyuan +2 more
core +1 more source
Oxide‐Free Titanium Coatings by Wire Arc Spraying in a Silane‐Doped Inert Atmosphere
Advanced Engineering Materials, EarlyView.A silane‐doped argon atmosphere enables the production of oxide‐free titanium coatings via twin‐wire arc spraying at ambient pressure. This innovative approach eliminates residual oxygen, creating process conditions that prevent oxidation and nitride formation.
Manuel Rodriguez Diaz +4 more
wiley +1 more source
Attention-Aided Outdoor Localization in Commercial 5G NR Systems
IEEE Transactions on Machine Learning in Communications and NetworkingThe integration of high-precision cellular localization and machine learning (ML) is considered a cornerstone technique in future cellular navigation systems, offering unparalleled accuracy and functionality.
Guoda Tian +4 more
doaj +1 more source
U.Porto Journal of Engineering, 2020 Important investments have been made worldwide in the modernization and construction of railway lines. Plans for new constructions have also been laid out.
Frutuoso Sousa +4 more
doaj +1 more source
, 2017 Fifth generation (5G) wireless networks are expected to utilize wide bandwidths available at millimeter wave (mmWave) frequencies for enhancing system throughput.
Choi, Junil, Love, David J., Song, Jiho
core +1 more source
Advanced Engineering Materials, EarlyView.Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth +6 more
wiley +1 more source
Efficient Preamble Design Technique for Millimeter-Wave Cellular Systems with Beamforming
Sensors, 2016 The processing time for beam training in millimeter-wave (mmWave) cellular systems can be significantly reduced by a code division multiplexing (CDM)-based technique, where multiple beams are transmitted simultaneously with their corresponding Tx beam ...
Dae Geun Han +2 more
doaj +1 more source
The effect of advanced glycation endproduct accumulation on bone [PDF]
, 2017 Diabetes is associated with increased fracture risk, which leads to increased morbidity and eventual mortality with a substantial financial burden.
Van Vliet, Miranda
core
Improved User Tracking in 5G Millimeter Wave Mobile Networks via Refinement Operations
, 2017 The millimeter wave (mmWave) frequencies offer the availability of huge bandwidths to provide unprecedented data rates to next-generation cellular mobile terminals.
Giordani, Marco, Zorzi, Michele
core +1 more source
Advanced Engineering Materials, EarlyView.This study investigates laser‐based oxide removal of Cu inserts in oxygen‐free conditions and examines long‐term oxidation kinetics and surface chemistry under different atmospheres via X‐ray photoelectron spectroscopy. Al–Cu compound casting with differently oxidized surfaces is performed, and intermetallic phase formation, morphology, and thermal ...
Timon Steinhoff +9 more
wiley +1 more source