Results 161 to 170 of about 1,219,894 (381)

Plasmaspheric effects on one way satellite timing signals [PDF]

The effects of the ionospheric retardation of satellite-emitted timing signals was presented. The retardation at the navigation frequencies, which is proportional to the total ionospheric electron content (TEC), was determined by Faraday polarization ...
Gorman, F. J., Jr., Soicher, H.
core   +1 more source

Photopolymerized Mixed Matrix Membranes for Liquid Organic Hydrogen Carrier Separation

Advanced Science, EarlyView.
Photopolymerized membranes with high metal organic framework (MOF)/Pd activated carbon loading enable selective separation of hydrogen‐rich/lean liquid organic hydrogen carriers (LOHCs) under mild operational conditions. The employed fabrication approach yields stratified, multilayer structures with enhanced aromatic/aliphatic (toluene ...
Abdollah Khosravanian, Farnaz Zadehahmadi, Mohammed Nizam Khan, Hamidreza Mahdavi, Michael T. Scalzo, Declan McNamara, Benny D. Freeman, Matthew R. Hill, Timothy F. Scott   +8 more
wiley   +1 more source

Position Lines of a Satellite Doppler Navigation and their Accuracies

, 1966
T. Makishima, I. Yasuda
openalex   +2 more sources

PAU/GNSS-R: Implementation, Performance and First Results of a Real-Time Delay-Doppler Map Reflectometer Using Global Navigation Satellite System Signals [PDF]

, 2008
J. F. Marchan-Hernandez, Adriano Camps, Nereida Rodriguez-Alvarez, Xavier Bosch-Lluis, I. Ramos‐Perez, E. Valencia   +5 more
openalex   +1 more source

Searching for Topological Semi‐Complete Bandgap in Elastic Truss Lattices

Advanced Science, EarlyView.
Ideal gapless nodes within clear bandgaps remain elusive in elastic systems, where degeneracies always hide in trivial bulk bands due to intricate modes. The work proposes a topological semi‐complete bandgap (exhibits a complete bandgap except for the inevitable topological degenerate points) in a 3D elastic truss lattice by tuning a supporting rod ...
Yiran Hao, Dong Liu, Liyou Luo, Jialu Mu, Hanyu Wang, Zibo Liu, Jensen Li, Zhihong Zhu, Qinghua Guo, Biao Yang   +9 more
wiley   +1 more source

Doppler Positioning with LEO Mega-Constellation: Equation Properties and Improved Algorithm

Remote Sensing
Doppler positioning, as an early form of positioning, has regained significant research interest in the context of Low Earth Orbit (LEO) satellites.Given the LEO mega-constellation scenario, the objective function of Doppler positioning manifests ...
Zichen Xu, Zongnan Li, Xiaohui Liu, Zhimin Ji, Qianqian Wu, Hao Liu, Chao Wen   +6 more
doaj   +1 more source

Navigation using the Altitude and Azimuth Measurement of the Artificial Satellite II

, 1967
T. Makishima
openalex   +2 more sources

RF ENVIRONMENT TEST ON A PROPOSED SITE FOR THE SENSOR STATION OF THE NEXT GENERATION SATELLITE NAVIGATION SYSTEM, GALILEO: II. THE RESULT OF THE TEST ON THE CANDIDATE SITE IN THE YEAR OF 2007 BY KASI AND ESA [PDF]

, 2008
Jung Hyun Jo, M. Comte, Moises Gonzalez, Jong‐Uk Park, Changhoon Lee, Phil-Ho Park, Jung-Wook Hwang, Nammi Choe   +7 more
openalex   +1 more source

Satellite communication and navigation for mobile users [PDF]

Efforts made to utilize space technology for solving communication and navigation problems faced by mobile users in earth orientated situations are outlined.
Bernstein, S. L.
core   +1 more source

Microglial Feimin Alleviates Cognitive Impairment in High‐Fat Diet‐Fed Mice

Advanced Science, EarlyView.
Microglial feimin deletion exacerbates lipotoxicity‐induced neuroinflammation and cognitive decline. In both in vitro and in vivo models, loss of feimin aggravated lipid droplet accumulation, IL‐1β/IL‐6 release, and neuronal injury through the PI3K–AKT–mTOR pathway, ultimately leading to severe neuronal apoptosis and cognitive impairment under high‐fat
Ran Gao, Zhonghua Xiong, Wenting Su, Jiahui Deng, Bin Zhai, Gaizhi Zhu, Min Zhang, Qi Zeng, Jinming Qiu, Ziqing Bian, He Xiao, Guoming Luan, Renxi Wang   +12 more
wiley   +1 more source