Results 41 to 50 of about 218,468 (291)

Navigating Ternary Doping in Li‐ion Cathodes With Closed‐Loop Multi‐Objective Bayesian Optimization

open access: yesAdvanced Materials, EarlyView.
The search for advanced battery materials is pushing us into highly complex composition spaces. Here, a space with about 14 million unique combinations is efficiently explored using high‐throughput experimentation guided by Bayesian optimization with a deep kernel trained on both the Materials Project database and our data.
Nooshin Zeinali Galabi   +6 more
wiley   +1 more source

Analysis of Radar Cross Section Reduction of Fighter Aircraft by Means of Computer Simulation

open access: yesJournal of Aerospace Technology and Management, 2014
This paper presents a preliminary study of the Radar Cross Section (RCS) reduction on the fighter aircraft. First, it was studied the RCS of the aircraft from computational simulations based on prior knowledge of vulnerable areas of this aircraft to ...
Luan Silva Carvalho dos Santos   +2 more
doaj  

Recent Progress on Flexible Multimodal Sensors: Decoupling Strategies, Fabrication and Applications

open access: yesAdvanced Materials, EarlyView.
In this review, we establish a tripartite decoupling framework for flexible multimodal sensors, which elucidates the underlying principles of signal crosstalk and their solutions through material design, structural engineering, and AI algorithms. We also demonstrate its potential applications across environmental monitoring, health monitoring, human ...
Tao Wu   +10 more
wiley   +1 more source

Estimation of Radar Cross Section of a Target under Track

open access: yesEURASIP Journal on Advances in Signal Processing, 2010
In allocating radar beam for tracking a target, it is attempted to maintain the signal-to-noise ratio (SNR) of signal returning from the illuminated target close to an optimum value for efficient track updates.
Young-Hun Jung   +2 more
doaj   +2 more sources

Perspective on Aqueous Batteries: Historical Milestones and Modern Revival

open access: yesAdvanced Materials, EarlyView.
This review retraces the development of aqueous batteries from classical Zn‐MnO2 chemistry to modern Zn and Ni systems, correlating voltage, capacity, and electrolyte formulation with practical performance. By mapping historical success and failure onto current and future research directions, it identifies guiding principles that steer the design of ...
Fangwang Ming   +5 more
wiley   +1 more source

Design and research of an ultra-wideband metal antenna with low radar cross section

open access: yesDianzi Jishu Yingyong, 2018
An ultra-wideband metal antenna with low radar cross section is proposed. The antenna adopts the metal Vivaldi as the radiation element, and utilizes a new-type frequency selective surface structure to reduce the radar cross section within the working ...
Zhang Qingchun   +5 more
doaj   +1 more source

Photonic-Radar Based Multiple-Target Tracking Under Complex Traffic-Environments

open access: yesIEEE Access, 2020
Recent developments in the state-of-the-art Intelligent Transportation Systems enable autonomous vehicles to offer significant safety services to take appropriate and prompt actions to avoid any probable unfortunate road-hazard.
Vishal Sharma, Love Kumar
doaj   +1 more source

Enhancement of backscattering cross section from an equivalent human cylinder under oblique incidence

open access: yesIET Microwaves, Antennas & Propagation, 2022
An analysis about the enhancement of backscattering radar cross section from an equivalent human body cylinder using a specific type of coating is presented.
Zeeshan A. Awan, Divitha Seetharamdoo
doaj   +1 more source

Radar Cross Section Lectures

open access: yes, 1984
These notes were developed while the author was on Sabbatical at NASA Ames Research Center during FY 1982. The lectures were presented to engineers and scientists at NASA Ames in March-April 1982. In August 1982, the RCS lectures were presented at General Dynamics Fort Worth Division.
openaire   +2 more sources

Millisecond‐Switching Dual‐Band/Dual‐Polarization Ka‐Band Wavefront Control Enabled by a Complementary Liquid‐Crystal Metasurface

open access: yesAdvanced Materials Technologies, EarlyView.
An LCD‐compatible complementary liquid‐crystal metasurface delivers dual‐band, dual‐polarized Ka‐band wavefront control with millisecond switching via a 10‐µm LC gap. Interlaced patch/slot pairs enable independent phase tuning at 28 and 38 GHz, while strategic 45° slot rotation suppresses parasitic resonances. Measurements on a 160 × 160‐cell prototype
Daehyeon Kim   +4 more
wiley   +1 more source

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