Results 151 to 160 of about 2,036 (280)

Density clustering based fast and stable satellite selection for LEO navigation. [PDF]

Sci Rep
Lu Z, Zhang S, Wang Y, Xiong J, Zhao R.
europepmc   +1 more source

High-Precision Time Synchronization and Autonomous Maintenance for LEO Satellite Constellations Based on High-Stability Crystal Oscillators. [PDF]

Sensors (Basel)
Mu L, Hu X, Wu M, Li J.
europepmc   +1 more source

LEO-PNT payload architecture and satellite design analysis

Low Earth Orbit (LEO) navigation satellite system versatility has the potential to significantly enhance Positioning, Navigation, and Timing (PNT) service reliability.
Praks, Jaan, Kuusniemi, Heidi, Prol, Fabricio S., Lohan, Elena Simona, Lundén, Ville, Kaasalainen, Sanna, Sharma, Shikha, Bhuiyan, M. Zahidul H., Saleem, Zainab, Mayank,   +9 more
core   +1 more source

Numerical and Experimental Assessment of Oxygen Distribution in a Perfusion Bioreactor to Mimic the Osteochondral Niche

Biotechnology and Bioengineering, EarlyView.
ABSTRACT Oxygen supply is a critical parameter in 3D cell cultivation using bioreactors. Since bioreactor designs often prioritise practical constraints, understanding the oxygen supply dynamics of the media is crucial for achieving either uniform or spatially controlled oxygen delivery.
Franziska Alt, Eric Langner, Hans‐Peter Wiesmann, Thomas Wallmersperger, Benjamin Kruppke   +4 more
wiley   +1 more source

Synergistic augmentation of BDS PPP-B2b: integrating LEO constellations and wide-lane ambiguity resolution for instantaneous convergence. [PDF]

Sci Rep
Zhao Q, Pan S, Gao W, Tao X, Huang H, Zhang M, Wang Q.   +6 more
europepmc   +1 more source

Keggin‐Type Aluminum Polyoxometalate‐Mediated Oxidation of Amorphous Carbon for Engineered Electrochemical Interfaces

Carbon Energy, EarlyView.
Keggin‐type Al‐POM‐coated silica achieves selective surface oxidation of amorphous carbon through electrostatic attraction and proton‐coupled oxidation, tailoring interfacial properties for lithium‐ion batteries and semiconductor processes. ABSTRACT Amorphous carbon is widely used in energy storage and semiconductor technologies, where surface ...
Ganggyu Lee, Dongmin Kang, Sumin Hong, Hongjun Park, Myungju Woo, Woojin Jeong, Giha Lee, Junsang Lee, Sangkyun Kim, Jea‐Gun Park, Takamasa Mori, Yehwan Kim, Taeseup Song, Ungyu Paik   +13 more
wiley   +1 more source

O-RAID: a satellite constellation architecture for ultra-resilient global data backup. [PDF]

Sci Rep
Meegama RGN.
europepmc   +1 more source

Alloying Cu, Fe, and Co in Ni/YSZ Electrodes for High‐Temperature CO2 Electrolysis: Impact on TPB Density, Activity, and Carbon Deposition Resistance

Carbon Energy, EarlyView.
Systematic alloying of Ni with Cu, Fe, and Co in Ni/YSZ electrodes modifies active site density up to 43%, decreases activation energies by up to 44%, and reduces carbon deposition fourfold. Cu–Ni alloy is among the most promising alloy catalysts for electrochemical CO2 reduction in SOECs.
Min Jun Oh, Sooin Lee, Jeeho Hong, Kyung Joong Yoon, Ho‐Il Ji, Ji‐Won Son, Jong‐Ho Lee, Kyeounghak Kim, Jongsup Hong, Sungeun Yang   +9 more
wiley   +1 more source

Engineering Biochar‐Derived Functional Materials for High‐Performance Supercapacitors: Design Principles, Mechanisms, and Scalable Strategies

Carbon Energy, EarlyView.
ABSTRACT Biochar has emerged as a useful and adaptable source of carbon for supercapacitor electrodes. Its value comes from the way biomass chemistry, thermal conversion, and activation conditions shape the resulting pore network, surface groups, and degree of carbon ordering.
Soumen Mandal, Avinash C. Mendhe, Mayna Roy, Neha S. Barse, Taejoon Park, Han‐Seung Lee, Haigun Lee   +6 more
wiley   +1 more source

A Scalable Solution for Node Mobility Problems in NDN-Based Massive LEO Constellations. [PDF]

Sensors (Basel)
Rodríguez Pérez M, Herrería Alonso S, López Ardao JC, Suárez González A.   +3 more
europepmc   +1 more source