Results 101 to 110 of about 56,300 (290)

Enhance Degrees of Freedom for Coprime Array Using OptSpace Algorithm

open access: yesIEEE Access, 2019
Coprime arrays, consisting of two subarrays with a co-prime number of physical sensors, can effectively resolve the direction-of-arrival (DOA) estimation when the number of sources exceeds the sensors. However, the conventional coprime array direction of
Qianpeng Xie, Xiaoyi Pan, Shunping Xiao
doaj   +1 more source

Rafting of Ni‐Based Superalloys Under Multiaxial Load as Understood by Phase‐Field Simulations and Critical Experiments

open access: yesAdvanced Engineering Materials, EarlyView.
Phase‐field simulations coupled with dislocation‐density‐based crystal plasticity modeling reproduce γ′ rafting behavior in single‐crystal Ni‐based superalloys under varied loading conditions. The model captures both macroscopic creep and microscopic morphology evolution, with results matching high‐temperature creep experiments.
Micheal Younan   +5 more
wiley   +1 more source

Multimodal Data‐Driven Microstructure Characterization

open access: yesAdvanced 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   +4 more
wiley   +1 more source

Resultados obtidos de uma amostra de pacientes estudados por hibridização genômica comparativa por chips de oligonucleotídeos (cgh array) em Santa Catarina: análise dos fatores: indicação, taxa diagnóstica e aplicabilidade. [PDF]

open access: yes, 2013
TCC(graduação) - Universidade Federal de Santa Catarina. Centro de Ciências Biológicas. Biologia.No Brasil, de acordo com o Censo 2010, 1,37% da população brasileira apresenta deficiência intelectual.
Anselmi, Mayara
core  

New Directions In Sparse Sampling and Estimation For Underdetermined Systems [PDF]

open access: yes, 2013
A central objective in signal processing is to infer meaningful information from a set of measurements or data. While most signal models have an overdetermined structure (the number of unknowns less than the number of equations), traditionally very few ...
Piya Pal, Pal, Piya
core   +1 more source

Microstructure‐Controlled Crack Propagation and Fracture Resistance in MoSiBTiC Alloy Revealed by Multiscale Extended Finite Element Method Modeling

open access: yesAdvanced Engineering Materials, EarlyView.
A two‐dimensional multiscale finite element analysis framework was established for the first‐generation MoSiBTiC alloy, and the mechanical and fracture‐related parameters of the constituent phases were calibrated through experiments and simulations. The framework provides a basis for analyzing crack propagation behavior in its complex microstructure ...
Junfeng Du   +4 more
wiley   +1 more source

A novel improved symmetric coprime MIMO array for DOA estimation of coherent signals [PDF]

open access: yes
International audienceCompared to the traditional passive detection co-prime array, co-prime MIMO array has the advantage of detecting coherent signals.
Wang, Yide, Yu, Jinhui, Ji, Fei, Xu, Yi
core   +1 more source

Molecular Dynamics Studies of Shape Memory Polymers: From Bead–Spring Models to Atomistic Simulations

open access: yesAdvanced Engineering Materials, EarlyView.
Coarse‐grained (left) and atomistic (right) models of the shape memory polymer ESTANE ETE 75DT3 are shown schematically. The two representations bridge molecular detail and mesoscopic description. Both models capture shape memory behavior, linking segmental mobility and conformational relaxation of anisotropic chains to macroscopic recovery, and ...
Fathollah Varnik
wiley   +1 more source

Ultrafine PtO2 nanoparticles coupled with a Co(OH)F nanowire array for enhanced hydrogen evolution [PDF]

open access: yes, 2018
In this communication, we report the in situ formation of ultrafine PtO2 nanoparticles coupled with a Co(OH)F nanowire array (PtO2-Co(OH)F NA/TM) via a facile hydrothermal treatment.
Wang, Ziqiang   +9 more
core  

DECaPS and SMA Discovery of a Highly Inclined Class I Young Stellar Object with an Outflow: IRAS 08235–4316

open access: yesThe Astronomical Journal
We present images of IRAS 08235–4316 with the Dark Energy Camera Plane Survey (DECaPS; spanning 0.398–1.034 μ m, at ∼1″ resolution) and the Submillimeter Array (SMA; at 1.38 mm (217 GHz) and ∼1 $\mathop{.}\limits^{^{\prime\prime} }$ 9 × 1 $\mathop ...
Joshua Bennett Lovell   +6 more
doaj   +1 more source

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