Results 161 to 170 of about 46,627 (302)

Hybrid Physics-Informed Residual Learning for Robust BDS-3 Satellite Clock Bias Prediction. [PDF]

Sensors (Basel)
Cheng L, Li K, Guan W, Li Z, Liang Q, Cai C.   +5 more
europepmc   +1 more source

Small Satellites and Liability Associated With Space Traffic Situational Awareness

, 2014
At the commencement of the space age, satellites were very small objects that subsequently grew in size and complexity. A re-emergence of small satellites is occurring given that technology now allows them to perform certain operations of large ...
Long, George Anthony
core  

Steering Oxygen Activation Pathways via Redox Dual‐Defects in 2D Hydrated WO3 for High‐Yield Singlet Oxygen Evolution

Advanced Functional Materials, EarlyView.
Redox dual‐defects (Cs substitution and O vacancies) in 2D hydrated WO3 steer O2 activation toward selective singlet oxygen evolution. WO‐CO achieves 8.6–15.8 times higher 1O2 production than single‐defect or pristine catalysts, enabling efficient pollutant mineralization via a pathway‐selective photocatalytic mechanism.
Sheng‐Qi Guo, Mingqi Xiao, Fangyuan Zhang, Hui Li, Yuli Jia, Zhenfang Zhang, Liqun Ye, Bo Yang, Tianyi Ma   +8 more
wiley   +1 more source

Improving Smartphone GNSS Positioning Accuracy Using Contextual Information. [PDF]

Sensors (Basel)
Park BG, Lee JS, Kim M, Park KD.
europepmc   +1 more source

Time‐Resolved Magnetization Switching Dynamics Driven by Orbital Torques

Advanced Functional Materials, EarlyView.
Du et al. reveal nanosecond magnetization switching driven by orbital currents using time‐resolved Hall detection. The measurements separate domain nucleation from domain wall propagation and show that Joule heating strongly assists switching by lowering energy barriers.
Ao Du, Shilei Ding, Min‐Gu Kang, Marco Hoffmann, Pietro Gambardella   +4 more
wiley   +1 more source

Nereid as a regular satellite of Neptune. [PDF]

Sci Adv
Belyakov M, Davis MR, Wong I, Batygin K, Brown ME.   +4 more
europepmc   +1 more source

Coupling Anodic Activity and Stability at Ni‐Based Non‐Oxide Catalysts via Coordinating Alcohol Oxidation and Oxygen Evolution

Advanced Functional Materials, EarlyView.
A cooperative and competitive interrelationship between alcohol oxidation (AOR) and water oxidation (OER) was observed on a typical anode catalyst of Ni2P. In situ Raman spectroscopy and electrochemical analyses revealed a specific complementary mechanism between them, in which OER and AOR critically contribute to the activity and stability of anodic ...
Yong Yan, Xinyu Liu, Yuguo Zhao, Hanwen Jian, Huan Zhou, Riyi Zhang, Dong Wang, Peter Schaaf, Lihua Wang, Guangsheng Guo, Xiayan Wang   +10 more
wiley   +1 more source

A novel phage satellite class induces prophage excision in Mycolicibacterium aichiense. [PDF]

Virology
Qian HL, Roman AN, Paudel S, Hussey GE, Carline KBR, Saha MS.   +5 more
europepmc   +1 more source

Support‐Controlled Reaction Pathways via Dynamic Sulfur‐Mediated Interfaces for Selective Urea Electrolysis

Advanced Functional Materials, EarlyView.
Sulfur‐doped graphitized carbon nanofibers act as adaptive catalyst–support platforms, enabling dynamic sulfur‐mediated reconstruction and strong metal–support interactions. This unique behavior enhances catalyst stability and controls reaction pathways, achieving highly selective urea oxidation (∼92% N2) coupled with efficient hydrogen evolution ...
Melanie Guillén‐Soler, Lucía Vizcaíno‐Anaya, Ahmad Tayyebi, José Manuel Vila‐Fungueiriño, María del Carmen Giménez‐López   +4 more
wiley   +1 more source

A Method for Enhancing the Positioning Performance of PPP-B2b by Integrating Galileo Observation. [PDF]

Sensors (Basel)
Shang X, Liu L, Yuan Y, Tong M, He Q, Gong X.   +5 more
europepmc   +1 more source