Results 201 to 210 of about 11,479 (277)

Spatial uniformity and temporal stability of pixel-to-pixel variation in mini-SiTian CMOS detector. [PDF]

open access: yesSci Rep
Hu G   +16 more
europepmc   +1 more source

From Flybys to Sample Return: A Review of Space Probes and Robotic Sampling Technologies for Small Bodies

open access: yesJournal of Field Robotics, EarlyView.
ABSTRACT As a crucial puzzle piece of deep space exploration, exploring small bodies can provide significant scientific insights and valuable mineral resources. Unlike missions to the Moon and Mars, small‐body missions pose distinct technical challenges, including communication delays, weak gravity, and uncertain environments. This paper reviews a full
Xin Zhang   +3 more
wiley   +1 more source

Tracing Three Decades of Low Earth Orbit Satellite Communication Development: A Bibliometric and Main Path Analysis of Network Architectures, Protocol Evolution, and Emerging Intelligent Services

open access: yesInternational Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT Low Earth Orbit (LEO) satellite communication systems have evolved into a critical component of global broadband networks, enabling wide‐area connectivity, IoT services, and intelligent multilayer satellite–terrestrial integration. Despite rapid advancements in constellation deployment, routing mechanisms, resource management, and LEO–5G/6G ...
Wei‐Hao Su   +2 more
wiley   +1 more source

Bottom‐Up Synthesis and Active Assembly of DNA Networks by Biomolecular Nanomachines

open access: yesSmall, EarlyView.
This study demonstrates a dynamic, bottom‐up assembly of DNA materials driven by two biomolecular nanomachines: DNA polymerase and kinesin. Through sequential chemical synthesis and motor‐driven mechanical manipulation, DNA fibrous networks are dynamically formed with complex morphologies unattainable by self‐assembly alone.
Farhana Afroze   +11 more
wiley   +1 more source

Horizontal and vertical exoplanet thermal structure from a JWST spectroscopic eclipse map. [PDF]

open access: yesNat Astron
Challener RC   +35 more
europepmc   +1 more source

Single‐Particle Insights Into the Electronic Structure and Enhanced Stability of CsPbBr3/FAPbBr3 Core/Crown Nanoplatelets at the Nanometer Scale

open access: yesSmall, EarlyView.
Single‐particle‐level investigation using scanning tunneling spectroscopy reveals electronic structure and type‐I band alignment of individual CsPbBr3@FAPbBr3 core‐crown nanoplatelet. Crown passivation suppresses deep trap states by 47% and markedly improves electrical stability under repeated bias sweeps.
Shaocheng Shen   +8 more
wiley   +1 more source

The abundances of carbon and nitrogen in the atmospheres of classical Be stars. [PDF]

open access: yesAstrophys Space Sci
Peters GJ   +4 more
europepmc   +1 more source

Tailoring the Melting and Glass Transition Behavior of Zeolitic Imidazolate Frameworks via Ammonium Halide Salts

open access: yesSmall, EarlyView.
Ammonium halide salts serve as inorganic modifiers that lower the melting and glass transition temperatures of zeolitic imidazolate frameworks, enabling centimeter‐scale hybrid glasses and melt processing of otherwise unmeltable ZIF‐8. In situ imaging and pair distribution function analysis reveal salt infiltration, Zn─N bond disruption, and Zn–halide ...
Fengming Cao   +7 more
wiley   +1 more source

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