Results 61 to 70 of about 5,674,494 (231)
Advanced Science, EarlyView.Whole‐blood biomimetic engineering transforms liquid metal nanoparticles into a tripartite immunotherapeutic platform that orchestrates regulatory T‐cell depletion, photothermal‐induced immunogenic cell death, and activation of the stimulator of interferon genes pathway.
Nina Sang, Eijiro Miyako
wiley +1 more source
Monopulse direction finding for linear frequency modulation based frequency diverse array
, 2017 Novel methods for monopulse direction finding for linear frequency modulation based frequency diverse array (LFM-FDA) are introduced and experimental results are presented.
Simsek Demir +5 more
core +2 more sources
Frequency Diverse Array Radar: New Results and Discrete Fourier Transform Based Beampattern
, 2020 In the phased-array radar signals from each antenna are transmitted at the same carrier frequency, which yields narrowly focused only angle dependent beampattern.
Ahmed, Sajid +2 more
core +1 more source
FDA-MIMO Beampattern Synthesis with an Analytical Method
International Journal of Aerospace Engineering, 2021 Since the beampattern has the characteristics of range-angle dependence, frequency diverse array multiple-input multiple-output (FDA-MIMO) radar has a good application prospect.
Changlin Zhou +5 more
doaj +1 more source
A MISO Frequency Diverse Array Implementation [PDF]
, 2023 The separation of RF signals from different angles of arrival is a key objective for a radarreceiver. A common approach to spatial separation relies on the measurement of a linear phaseprogression across multiple receive antenna elements, where the rate ...
Kellerman, Nicholas
core
Advanced Science, EarlyView.This article aims to elucidate the biological mechanisms of bone repair and the evolution of material design, highlighting key cellular and molecular processes. It further proposes strategies and prospects for programmable bio‐interactive materials, which enable precisely guided bone tissue regeneration by dynamically regulating cell behavior and the ...
Qingrui Fan +6 more
wiley +1 more source
Advanced Science, EarlyView.A biomimetic doppelgänger nanosystem neutralizes extracellular inflammatory cytokines and silences intracellular pyroptosis, reprogramming pathogenic macrophages to attenuate both joint and spine degeneration. ABSTRACT Osteoarthritis (OA) and intervertebral disc degeneration (IVDD) are debilitating musculoskeletal disorders driven by shared ...
Fudong Li +9 more
wiley +1 more source
Joint Sparsity-Based Range-Angle-Dependent Beampattern Synthesis for Frequency Diverse Array
IEEE Access, 2017 For frequency diverse array (FDA) range-angle-dependent beampattern synthesis, the objective is to obtain the desired beampattern performance using fewer antenna elements or smaller aperture.
Hui Chen, Huai-Zong Shao, Wen-Qin Wang
doaj +1 more source
Multi-Scene Deception Jamming on SAR Imaging With FDA Antenna
IEEE Access, 2020 Most of the existing deception jamming techniques focus on designing effective jamming signals for static targets or scenes. This paper proposes a multi-scene deception jamming against synthetic aperture radar (SAR) imaging with frequency diverse array ...
Hui Wang +5 more
doaj +1 more source
A Two-Ray Multipath Model for Frequency Diverse Array-Based Directional Modulation in MISOME Wiretap Channels [PDF]
, 2019 A two-ray multipath model for frequency diverse array (FDA)-based directional modulation (DM) is proposed in multi-input single-output multi-eavesdropper (MISOME) wiretap channels for the first time.
Cheng, Qian +3 more
core +1 more source