Results 201 to 210 of about 23,240 (261)

Bridged h‐BN Nanosheets Coatings: Simultaneous Shielding Atomic‐Oxygen Irradiation and Achieving Superior Friction Performance

Advanced Science, EarlyView.
ABSTRACT To confront extreme space environments, a combination of inorganic and organic coatings can provide a pathway for offering highly durable radiation resistance and anti‐friction simultaneously. Herein, a strong interfacial 3D hydrogen‐bonding network is designed to create robust hexagonal boron nitride (h‐BN) based polymer coatings with ...
Zhuoyi Li, Changning Bai, Xingkai Zhang, Yusheng Liang, Wei Wu, Dingrui Zhou, Tao Du, Chunjin Wang   +7 more
wiley   +1 more source

Records of compass heading for long-distance ocean migrators show mid-ocean reorientation. [PDF]

Sci Adv
Hays GC, Stokes KL, Cerritelli G, Costa DP, Favilla AB, Luschi P, Rutishauser M, Tromp J, Esteban N.   +8 more
europepmc   +1 more source

Water‐Enabled Ultralong Full‐Color Organic Phosphorescence in Hydrogen‐Bonded Frameworks for 4D Encryption and Bio‐Imaging

Advanced Science, EarlyView.
Water‐induced quenching challenges organic RTP materials, but a counter‐intuitive strategy employs HOF to encapsulate carbonyl guests, where water functions as a structural reinforcer. This achieves water‐enhanced ultralong RTP with full‐color emission (blue to deep red), overcoming intracellular quenching for high‐signal cellular imaging, alongside 4D
Pengcheng Wu, Zenggang Lin, Lu Yang, Weisheng Liu   +3 more
wiley   +1 more source

Research progress on precision orchard yield estimation based on multi-source information perception sensors. [PDF]

Front Plant Sci
Rong Z, Ru Y, Zhang X, Fang S, Zhou H, Jiang X.   +5 more
europepmc   +1 more source

Integrating Beach Monitoring and Satellite Telemetry to Estimate Loggerhead Clutch Frequency in Brazil. [PDF]

Animals (Basel)
Lara PH, Stahelin G, Marcovaldi MÂ, Dos Santos AS, Swimmer Y, Mendilaharsu ML.   +5 more
europepmc   +1 more source

Cognitive Radio for Satellite TT & C System: A General Dataset Using Software-defined Radio. [PDF]

Sci Data
Zhang Y, Zang B, Ji H, Li L, Li S, Chen L.   +5 more
europepmc   +1 more source

MMDEC: Multimodal maritime dataset on the English channel. [PDF]

Data Brief
Averty T, Nasios I, Ray C, Piliouras N.
europepmc   +1 more source

Correction to: AI-based satellite survey offers independent assessment of migratory wildebeest numbers in the Serengeti. [PDF]

PNAS Nexus
europepmc   +1 more source

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Satellite-to-Satellite-Tracking (SST)

2021
Im Kap. 12 wird das bereits im letzten Kapitel beschriebene Verfahren des Satellite-to-Satellite-Trackings (SST) genauer charakterisiert. Insbesondere im Zusammenhang mit dem GRACE-Projekt bzw. dem GRACE-Nachfolge-Projekt, das eine unglaubliche Relativentfernungsmessgenauigkeit aufweist, wird man auch in Zukunft noch hohe Gravitationsfeldgenauigkeiten ...
openaire   +1 more source

Nonlinear Tracking Control for Satellite Formations

Journal of Guidance, Control, and Dynamics, 2002
A tracking control law using a sliding mode framework is derived to control a satellite formation. Hill's relative motion equations are used to model the follower satellite's motion relative to the leader. To minimize fuel required to maintain the formation, each satellite is constrained to reside near a natural orbit.
Hsi-Han Yeh, Eric Nelson, Andy Sparks
openaire   +1 more source