Results 161 to 170 of about 6,360,569 (404)

Fabrication of porous metallic glass using a dissolution manufacturing strategy and their functional applications

Materials Today Advances
Recent developments in the engineering of metallic glasses (MGs) with custom properties have been compelling, particularly in porous constructions.
Junsheng Liu, Wenqing Ruan, Jianan Fu, Heting Zhang, Shenghao Zeng, Shuai Ren, Jiang Ma   +6 more
doaj  

Simulative Investigation of the Radar Cross Section of Wind Turbines

Applied Sciences, 2019
Wind-power generation is one of the fundamental sources of renewable energy. However, due to the increasing size of wind turbines, they cause unwanted interference with radar systems for civic protection, especially for on-shore locations.
Sebastian Hegler, Dirk Plettemeier
doaj   +1 more source

Relation between Bright Chromospheric Eruptions and Fade-Outs of High-Frequency Radio Transmission [PDF]

, 1937
R. S. Richardson
openalex   +1 more source

Exploring Ambient Radio Frequency Emissions [PDF]

arXiv
Radio astronomy observatories, such as the Dominion Radio Astrophysical Observatory in Penticton, British Columbia, try to limit radio frequency interference to observe incredibly faint astronomical signals. These protective measures include placing observatories in geographically remote locations, the implementation of radio-frequency-interference ...
arxiv  

Synchrotron radiation and solar radio outbursts at microwave frequencies [PDF]

, 1959
T. Takakura
openalex   +1 more source

Data‐driven forecasting of ship motions in waves using machine learning and dynamic mode decomposition

International Journal of Adaptive Control and Signal Processing, EarlyView.
Summary Data‐driven forecasting of ship motions in waves is investigated through feedforward and recurrent neural networks as well as dynamic mode decomposition. The goal is to predict future ship motion variables based on past data collected on the field, using equation‐free approaches.
Matteo Diez, Mauro Gaggero, Andrea Serani   +2 more
wiley   +1 more source

Random Learning Leads to Faster Convergence in ‘Model‐Free’ ILC: With Application to MIMO Feedforward in Industrial Printing

International Journal of Adaptive Control and Signal Processing, EarlyView.
The cost as a function of the number of experiments for a non‐symmetric 21×21$$ 21\times 21 $$ system. Four approaches are shown: the proposed stochastic conjugate gradient ILC (SCGILC) method (), deterministic conjugate gradient ILC (), stochastic gradient descent ILC () and deterministic gradient descent ILC ().
Leontine Aarnoudse, Tom Oomen
wiley   +1 more source

The ATESP 5 GHz radio survey. III. 4.8, 8.6 and 19 GHz follow-up observations of radio galaxies

, 2009
[Abridged] Physical and evolutionary properties of the sub-mJy radio population are not entirely known. The radio/optical analysis of the ATESP 5 GHz sample has revealed a significant class of compact flat/inverted radio-spectrum sources associated to ...
Barvainis, Bolton, Clark, Colla, Condon, Condon, de Ruiter, De Zotti, Doi, Falcke, Fanaroff, Fanti, Feigelson, Georgakakis, Giroletti, Gregorini, Gregorini, Gruppioni, H. R. de Ruiter, Hildebrandt, Högbom, I. Prandoni, Isobe, Isobe, Jarvis, Klöckner, L. Gregorini, Lacy, Laing, Leipski, Magliocchetti, Mahadevan, Massardi, Mignano, Mignano, Muxlow, Nagar, Narayan, Nonino, O'Dea, Olsen, P. Parma, Prandoni, Prandoni, Prandoni, Prandoni, Prandoni, Quataert, Quirrenbach, R. D. Ekers, R. Ricci, Ricci, Richards, Sadler, Sault, Smolcic, Snellen, Steer, Tingay, Tucci, Vettolani, Waldram   +61 more
core   +1 more source

Ultra-broadband mid-infrared absorber based on hyperbolic α-MoO3

Results in Physics, 2023
Owing to their broad operational bandwidth, broadband absorbers are extensively used in various applications, such as solar cells, microbolometers, and light modulators.
Jiaqi Zhu, Le Cheng, Jun Liang, Yanyu Zhao, Youning Gong, Yupeng Zhang, Guo Ping Wang   +6 more
doaj  

A Q‐Learning Algorithm to Solve the Two‐Player Zero‐Sum Game Problem for Nonlinear Systems

International Journal of Adaptive Control and Signal Processing, Volume 39, Issue 3, Page 566-581, March 2025.
A Q‐learning algorithm to solve the two‐player zero‐sum game problem for nonlinear systems. ABSTRACT This paper deals with the two‐player zero‐sum game problem, which is a bounded L2$$ {L}_2 $$‐gain robust control problem. Finding an analytical solution to the complex Hamilton‐Jacobi‐Issacs (HJI) equation is a challenging task.
Afreen Islam, Anthony Siming Chen, Guido Herrmann   +2 more
wiley   +1 more source