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Showing 5 of 5 academic articles

IWORMLF: Improved Invasive Weed Optimization With Random Mutation and Lévy Flight for Beam Pattern Optimizations of Linear and Circular Antenna Arrays

Tingting Zheng, Yanheng Liu, Geng Sun, Lin Zhang et al. • IEEE Access (2020)

The beam pattern synthesis of antenna arrays is one of the most significant optimization problems in the electromagnetics community, and it affects the performance of wireless communication systems. In this article, we formulate the beam pa...

DOAJ Open Access (DOAJ) DOI: 10.1109/ACCESS.2020.2968476

Observer-Based Robust Finite-Time Trajectory Tracking Control for a Stratospheric Satellite Subject to External Disturbance and Actuator Saturation

Shurui Huang, Yueneng Yang, Ye Yan, Shifeng Zhang et al. • International Journal of Aerospace Engineering (2022)

The stratospheric satellite is regarded as an ideal stratosphere flight platform and is able to accomplish various missions such as surveillance, earth observation, and remote sensing, which requires a robust and effective trajectory tracki...

DOAJ Open Access (DOAJ) DOI: 10.1155/2022/1601771

Convergence rate of principal component analysis with local-linear smoother for functional data under a unified weighing scheme

Xingyu Yan, Xiaolong Pu, Yingchun Zhou, Xiaolei Xun • Statistical Theory and Related Fields (2020)

The unified weighing scheme for the local-linear smoother in analysing functional data can deal with data that are dense, sparse or of neither type. In this paper, we focus on the convergence rate of functional principal component analysis ...

DOAJ Open Access (DOAJ) DOI: 10.1080/24754269.2019.1656048

Smoothed Particle Hydrodynamics in Astrophysics

Volker Springel • Annual Review of Astronomy and Astrophysics (2010)

This review discusses smoothed particle hydrodynamics (SPH) in the astrophysical context, with a focus on inviscid gas dynamics. The particle-based SPH technique allows an intuitive and simple formulation of hydrodynamics that has excellent...

OPENALEX Open Access DOI: https://doi.org/10.1146/annurev-astro-081309-130914