Results 61 to 70 of about 23,240 (261)

Test Method for Single Satellite’s Inter-Satellite Link Pointing and Tracking via Ground Station

open access: yesAerospace
An inter-satellite link is a key technology that improves control accuracy, transmission efficiency, and autonomous capability of constellations. A satellite’s pointing and tracking abilities mainly determine the inter-satellite link’s performance, which
Zhenqiang Hong   +5 more
doaj   +1 more source

Fullerene‐Mediated Iodine Immobilization at Buried Interfaces in Sn–Pb Perovskite Solar Cells

open access: yesAdvanced Functional Materials, EarlyView.
Indene‐C60 bisadduct (ICBA) accumulates at the buried interface of inverted tin‐lead perovskite solar cells, limiting undesired electron extraction while maintaining efficient hole transport. ICBA simultaneously scavenges molecular iodine, mitigating Sn2+ oxidation and interfacial recombination. This coupled electronic‐chemical regulation delivers 22.7%
Chi‐Jing Huang   +15 more
wiley   +1 more source

Implementation Method of GEO and LEO Satellite Tracking Compatible Flat-Plate Antenna

open access: yes天地一体化信息网络, 2022
In order to improve the portability, disassembly and usability of the satellite communication antenna products in the fi eld, a GEO and LEO satellite tracking compatible fl at-plate antenna implementation method was proposed, the micro strip array ...
Jian CHEN   +4 more
doaj   +2 more sources

Design of a remotely accessible satellite tracking system [PDF]

open access: yesMATEC Web of Conferences
The growing number of objects in orbits has led to an increase in space monitoring. While large-scale tracking system exist, enthusiasts often use basic methods for satellite monitoring. To eliminate the need for physical access to tracking stations, the
Kisoon Rushil   +3 more
doaj   +1 more source

Microfluidic Nano‐Assembly of Red‐Blood‐Cell (RBC) Lipids and Components for Engineering Extracellular Vesicles

open access: yesAdvanced Healthcare Materials, EarlyView.
Engineered red blood cell‐derived extracellular vesicles (eRBCEVs) are synthesized via controlled microfluidic assembly from native RBC lipids, enabling tunable encapsulation of proteins, nucleic acids, nanoparticles, and viral vectors. The platform demonstrates reproducible nanoscale architecture, preserved membrane composition, and functional cargo ...
Chiranth K. Nagaraj   +23 more
wiley   +1 more source

A Graph Convolutional Network Framework for Area Attention and Tracking Compensation of In-Orbit Satellite

open access: yesApplied Sciences
In order to solve the problems of low tracking accuracy of in-orbit satellites by ground stations and slow processing speed of satellite target tracking images, this paper proposes an orbital satellite regional tracking and prediction model based on ...
Shuai Wang   +7 more
doaj   +1 more source

Rational Design of Organic Chromophores for Simultaneously Trig‐gering Redox Imbalance and Tracking Organelles in Biological Sys‐tems Under Near‐Infrared Light Irradiation

open access: yesAdvanced Healthcare Materials, EarlyView.
TOC represents the synthesis of theory‐guided novel near‐infrared (NIR) light‐absorbing organic photosensitizers (OPS) enabling redox‐induced tumor phototherapy and single‐cell organelle tracking. ABSTRACT The design of organic photosensitizers that operate efficiently in the near‐infrared (NIR) region remains challenging due to the need to balance ...
Pragti   +3 more
wiley   +1 more source

STCD: efficient Siamese transformers-based change detection method for remote sensing images

open access: yesGeo-spatial Information Science
Remote sensing Change Detection (CD) involves identifying changing regions of interest in bi-temporal remote sensing images. CD technology has rapidly developed in recent years through the powerful learning ability of Convolutional Neural Networks (CNN),
Decheng Wang   +4 more
doaj   +1 more source

Portable Molecularly Imprinted Polymer Sensor for Rapid Swab‐Based Detection of Norovirus

open access: yesAdvanced Healthcare Materials, EarlyView.
This work reports a rapid, portable smartphone‐based sensor capable of detecting four norovirus genotypes from swab samples within 15 min. Sensor selectivity was validated through evaluation against four common live viruses. The swab‐based sampling process enabled simple sample preparation combined with the compact detection system, supporting use of ...
Amy Dann   +13 more
wiley   +1 more source

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