Results 161 to 170 of about 860,332 (273)

Channel estimation for reconfigurable intelligent surface-assisted mmWave based on Re'nyi entropy function. [PDF]

Sci Rep, 2022
Albataineh Z, Hayajneh KF, Shakhatreh H, Athamneh RA, Anan M.   +4 more
europepmc   +1 more source

Multimodal Data‐Driven Microstructure Characterization

Advanced Engineering Materials, EarlyView.
A self‐consistent autonomous workflow for EBSP‐based microstructure segmentation by integrating PCA, GMM clustering, and cNMF with information‐theoretic parameter selection, requiring no user input. An optimal ROI size related to characteristic grain size is identified.
Qi Zhang, Santiago Benito, Özge Özgün, Sebastian Weber, Markus Stricker   +4 more
wiley   +1 more source

Activity Detection and Channel Estimation Based on Correlated Hybrid Message Passing for Grant-Free Massive Random Access. [PDF]

Entropy (Basel)
Liu X, Gong X, Fu X.
europepmc   +1 more source

Channel estimation based on superimposed pilot and weighted averaging. [PDF]

Sci Rep, 2022
Wu Q, Zhou X, Wang C, Qin Z.
europepmc   +1 more source

Microstructure Evolution of a VMnFeCoNi High‐Entropy Alloy After Synthesis, Swaging, and Annealing

Advanced Engineering Materials, EarlyView.
The synthesis and processing (rotary swaging and annealing) of the novel VMnFeCoNi alloy is investigated, alongside the estimation of the grain size effect on hardness. Analysis of a wide grain size range of recrystallized microstructures (12–210 µm) reveals a low annealing twin density.
Aditya Srinivasan Tirunilai, Zeki Ayrildi, Buse Şen, Maik Rajkowski, Mathias Redondo Garcia, Markus Stricker, Guillaume Laplanche   +6 more
wiley   +1 more source

Residual learning based convolution neural network for improved channel estimation for VehA channel. [PDF]

Sci Rep
Khichar S, Meng Y, Sharma A, Saadi M, Parniarifard A, Chaudhary S.   +5 more
europepmc   +1 more source

Accelerated PARAFAC-Based Channel Estimation for Reconfigurable Intelligent Surface-Assisted MISO Systems. [PDF]

Sensors (Basel), 2022
Xiao H, Deng H, Guo A, Qian Y, Peng C, Zhang Y.   +5 more
europepmc   +1 more source

High‐Temperature Nanoindentation of Metals: Assessing Thermal Drift, Frame Compliance, and Chemical Composition Effects on the Reported Mechanical Properties

Advanced Engineering Materials, EarlyView.
Do not let thermal drift and instrument artifacts deceive high‐temperature nanoindentation results. We compare classical Oliver–Pharr and automatic image recognition analyses across steels and a Ni alloy to quantify these effects. Accounting for artifacts reveals systematic softening with temperature, while Cr and Ni additions boost resistance ...
Velislava Yonkova, Steffen Brinckmann, Ruth Schwaiger   +2 more
wiley   +1 more source

Non-Iterative Reconstruction and Selection Network-Assisted Channel Estimation for mmWave MIMO Communications. [PDF]

Sensors (Basel)
Yang J, Guo Y, Guo X, Wang P.
europepmc   +1 more source

Two-Stage Channel Estimation for Semi-Passive RIS-Assisted Millimeter Wave Systems. [PDF]

Sensors (Basel), 2022
Peng C, Deng H, Xiao H, Qian Y, Zhang W, Zhang Y.   +5 more
europepmc   +1 more source