Results 111 to 120 of about 58,381 (315)
Compressive Millimeter-Wave Phased Array Imaging
IEEE Access, 2016 In this paper, we introduce a 3-D compressive phased array imaging method. The derived system model is general and can also be used in other array configurations.
Qiao Cheng, Akram Alomainy, Yang Hao
doaj +1 more source
Ultrasonic phased array inspection of wire plus arc additive manufactured (WAAM) titanium samples [PDF]
, 2019 Recent developments in the application of the Wire + Arc Additive Manufacturing (WAAM) process for the production of titanium components have attracted the attention of many industrial sectors, such as aerospace and defence.
Mohseni, Ehsan +12 more
core
Advanced Engineering Materials, EarlyView.We develop a data‐driven method to derive the mathematical expressions of the Flory–Huggins interaction parameter χ for the swelling behavior of temperature–responsive hydrogels. Starting from initial assumptions of χ, our workflow combines Bayesian optimization, Flory–Rehner theory, and symbolic regression to generate candidate χ expressions.
Yawen Wang +2 more
wiley +1 more source
A SIMPLE EM DIPOLE RADIATING ELEMENT FOR DUAL-POLARIZED PHASED ARRAY WEATHER RADARS [PDF]
, 2016 The Dual Polarized radiating element is a critical component in the Multi-function Phased Array Radar (MPAR) System. This thesis studies a new type of dual polarized radiating element based on the Electro-Magnetic (EM) dipole concept.
Mirza, Ridhwan Khalid
core
Advanced 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
History of acoustic beamforming
, 2006 The development of the beamforming method (also called microphone antenna, phased array of microphones, acoustic telescope, or acoustic camera) is reviewed in this paper.
Michel, U., Ulf Michel
core
Advanced Engineering Materials, EarlyView.Graphene nanoplatelet (0.1 wt.%) reinforcement significantly enhances the performance of β Ti‐28Nb‐35.4Zr alloy. Grain refinement, reduced water contact angle, and improved surface characteristics promote osteoblast adhesion and complete surface coverage after 7 days.
Khurram Munir +5 more
wiley +1 more source
Model and optimization of ultrasonic phased array parameters
Journal of Measurement Science and Instrumentation, 2016 Beam focusing is one of the unique characteristics of ultrasonic phased array compared with conventional ultrasound.On the basis of two-dimensional radiated sound field of phased array,the three-dimensional radiated sound field was simulated in the paper,
QIAN Xue-wei, WANG Zhao-ba, ZHAO Xia
doaj
On RF localisation deception capability of FDA signal under interferometry reconnaissance
The Journal of Engineering, 2019 Phased-array antennas are known for their capability to electronically steer a beam with high effectiveness, but beam steering is fixed in an angle for all range cells.
Xihui Zhang +3 more
doaj +1 more source
Adaptive beamforming for large arrays in satellite communications systems with dispersed coverage [PDF]
, 2011 Conventional multibeam satellite communications systems ensure coverage of wide areas through multiple fixed beams where all users inside a beam share the same bandwidth. We consider a new and more flexible system where each user is assigned his own beam,
Larue de Tournemine, Cécile +5 more
core +1 more source