Results 121 to 130 of about 9,572,770 (273)
Advanced Materials, EarlyView.Cu2S/NiOOH heterojunction enables efficient ammonia electrooxidation coupled with hydrogen evolution. Interfacial electronic modulation of Ni sites promotes selective NH3‐to‐NO2− electrooxidation at high current density. In a membrane electrode assembly, Cu2S/NiOOH maintains over 90% Faradaic efficiency of nitrite at 800 mA cm−2, highlighting its ...
Ke Wang +13 more
wiley +1 more source
Relativity in Low Earth Orbit Satellites
Satellite clocks are affected by two sources of time dilation: one from the difference in gravitational potential and one from high velocities. Unless compensated for, these effects can cause large errors in positioning, navigation and timing systems. Corrections for this have been developed for global navigation satellite systems (GNSS) which involve ...
openaire +1 more source
Advanced Materials, EarlyView.Density‐driven differential sedimentation fractionates solution‐assembled P3HT nanowires into crystalline and disordered constituents. High‐resolution cryo‐TEM directly visualizes the molecular chain packing within individual nanowires in real space, and recombining the fractions programs the mobility–stretchability trade‐off without chemical ...
Junyeon Yoon, Jun Ho Hwang, Eunji Lee
wiley +1 more source
Radiative Thermal Management for Extreme Environments: Mechanisms and Design Strategies
Advanced Materials, EarlyView.In this review, we discuss the fundamental mechanisms of radiative cooling and solar heating, material and structural design strategies, hybrid approaches integrating additional heat transfer pathways, and durability‐oriented designs addressing environmental stresses.
Hyung Rae Kim +5 more
wiley +1 more source
Advanced Materials, EarlyView.Self‐invalidating multilayer physical unclonable functions (PUFs) integrate fingerprint‐like metal nanopattern bilayers from block copolymer templates with highly reactive reduced graphene oxide (rGO) interlayers. This tamper‐responsive architecture blocks all unauthorized physical and chemical replication attempts while autonomously deactivating ...
Gyu Hui Jo +7 more
wiley +1 more source
Interface‐Mediated Catalysis for Improved Hydrogen Storage in Reactive Hydride Composites
Advanced Materials, EarlyView.Catalyst–hydride interfaces are engineered in Co@C‐ and Ni@C‐modified 2LiH + MgB2 reactive hydride composites to accelerate hydrogen uptake and release. Multiscale scattering, in‐situ synchrotron radiation powder x‐ray diffraction and density functional theory calculations reveal the structural and electronic origin of the catalytic enhancement ...
Yuanyuan Shang +12 more
wiley +1 more source
A Certificateless Encryption-Based Authentication Protocol for Low Earth Orbit Satellite Network. [PDF]
Sensors (Basel)Lv Z +5 more
europepmc +1 more source
Integrated Routing and Switching Technology for LEO Satellites
天地一体化信息网络Low Earth Orbit (LEO) satellites are capable of delivering more precise and efficient multi-source data fusion information services. This paper delves deep into the impact exerted by the on-orbit characteristics of low-orbit satellites on the ...
ZHANG Shiceng +4 more
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Giant Anisotropic Spin Absorption in Chiral Hybrid Semiconductors
Advanced Materials, EarlyView.Researchers uncover that chiral hybrid organic–inorganic semiconductors absorb spin differently depending on its polarization direction. This anisotropic spin absorption is primarily driven by the local symmetry breaking within the layered structure.
Cong Yang +12 more
wiley +1 more source
Optimizing Time-Sensitive Traffic Scheduling in Low-Earth-Orbit Satellite Networks. [PDF]
Sensors (Basel)Liu W, Xiao N, Liu B, Zhang Y, Li T.
europepmc +1 more source