Results 121 to 130 of about 23,082 (299)
Additive Gaussian Process Regression for Predictive Design of High‐Performance, Printable Silicones
Advanced Engineering Materials, EarlyView.A chemistry‐aware design framework for tuning printable polydimethylsiloxane (PDMS) for vat photopolymerization (VPP) is developed using additive Gaussian process (GP) modeling. Polymer network mechanics informs variable groupings, feasible formulation constraints, and interaction variables.
Roxana Carbonell +3 more
wiley +1 more source
IEEE Open Journal of the Communications SocietyThrough simultaneous downlink and uplink transmission on the same frequency slot, in-band full duplex has the potential to double the spectral efficiency of communication systems, however, the potential is difficult to realize due to the strong self ...
Richard Ziegahn, Tho Le-Ngoc
doaj +1 more source
Advanced Engineering Materials, EarlyView.A hierarchical porous copper current collector is fabricated via three‐dimensional printing combined with pressureless sintering to stabilize lithium metal anodes. The interconnected architecture lowers local current density, guides uniform Li deposition within pores, and suppresses dendrite growth.
Alok Kumar Mishra, Mukul Shukla
wiley +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
Performance Evaluation of Distributed-Antenna Communications Systems Using Beam-Hopping
, 2005 Digital beamforming (DBF) techniques are capable of improving the performance of communications systems significantly. However, if the transmitted signals are conflicted with strong interference, especially, in the direction of the transmitted beams ...
Yang, L.-L., Zhu, J., Hu, H.
core
Antenna selection for multi-user MIMO at millimeter-wave spectrum with lens antenna arrays
, 2017 The recent concept of beamspace multiple-input-multiple-output (MIMO) enables the millimeter-wave (mmWave) MIMO system to reduce the radio-frequency chains by utilising beam selection and yet achieve near-optimal sum-rate performance.
Fang, Xu Ming +5 more
core +1 more source
Heuristic Antenna Selection and Precoding for a Massive MIMO System
IEEE Open Journal of the Communications SocietySixth Generation (6G) transceivers are envisioned to feature massively large antenna arrays compared to its predecessor. This will result in even higher spectral efficiency (SE) and multiplexing gains.
Waqas Bin Abbas +5 more
doaj +1 more source
Near‐Field Electrospinning Micro‐Printhead Achieves Precise Control of Nanofiber Deposition
Advanced Engineering Materials, EarlyView.A micro‐printhead for near‐field electrospinning enables reproducible deposition of polymer nanofibers with diameters below 50 nm. Systematic parameter studies uncover the mechanisms linking operating conditions to fiber morphology, paving the way for precise and low‐cost nanoscale 3D manufacturing.As a high‐resolution, cost‐effective, and rapid ...
Han Xu, Dario Mager, Jan G. Korvink
wiley +1 more source
Antenna Selection and Power Allocation in Massive MIMO [PDF]
Radioengineering, 2019 This paper explores the massive multiple-input multiple-output (Ma-MIMO) communication system possessing large number of antennas at the basestation (BS) serving multiple user terminal (UT) in single cell configuration.
P. D. Selvam, K. S. Vishvaksenan
doaj
Deep Learning Based Antenna Selection for MIMO SDR System. [PDF]
Sensors (Basel), 2020 Zhong S +7 more
europepmc +1 more source