Results 121 to 130 of about 1,219,894 (381)

An Integrity Monitoring Method for Navigation Satellites Based on Multi-Source Observation Links

open access: yesRemote Sensing
The BeiDou-3 navigation satellite system (BDS-3) has officially provided positioning, navigation, and timing (PNT) services to global users since 31 July 2020.
Jie Xin, Dongxia Wang, Kai Li
doaj   +1 more source

Study of a navigation and traffic control technique employing satellites. Volume 3 - User hardware Interim report [PDF]

open access: yes
User hardware configurations and requirements for navigation and air traffic control technique using ...
Estersohn, N., Garabedian, A.
core   +1 more source

Navigation satellites [PDF]

open access: yes, 1964
Satellite navigation system - geodesy ...
Kershner, R. B.
core   +1 more source

Design Strategies and Roles of Hydrogels for Sustainable Energy Conversion and Harvesting from Natural and Biological Environments

open access: yesAdvanced Materials, EarlyView.
This review examines hydrogel‐based technologies driven by environmental stimuli and emphasizes their unique contributions to energy conversion. It provides insights into design strategies and recent advancements in functional hydrogels, highlighting opportunities and challenges in this field.
Wanheng Lu   +5 more
wiley   +1 more source

A review on the mechanism of high repetition rate pulse interference on the RF front-end of GNSS receivers

open access: yesFrontiers in Physics
With the rapid advancement of pulse technology, given the extraordinarily high repetition frequency of high-repetition pulse interference, with pulse widths typically ranging from a few nanoseconds to several hundred nanoseconds, it possesses ultra ...
Yili Song   +10 more
doaj   +1 more source

Nimbus 6 Random Access Measurement System applications experiments [PDF]

open access: yes
The advantages of a technique in which data collection platforms randomly transmit signal to a polar orbiting satellite, thus eliminating satellite interrogation are demonstrated in investigations of the atmosphere; oceanographic parameters; Arctic ...
Cote, C. E., Gilbert, E., Taylor, R.
core   +1 more source

The First Review on Nano‐Agricultural Applications of MXene and MBene‐Based Materials for Plant‐Immunoengineering, Controlled Protection, and Inducing Biostimulation Mechanisms

open access: yesAdvanced Materials, EarlyView.
MXene and MBene nanomaterials show significant potential in addressing critical challenges in biomedicine, applied biology, agriculture, and the environment. From a nano‐agricultural perspective, this relatively young field has witnessed emerging advances towards applications for plant‐immunoengineering, biostimulation, and controlled delivery ...
Alireza Rafieerad   +3 more
wiley   +1 more source

Emergent Motility of Self‐Organized Particle‐Giant Unilamellar Vesicle Assembly

open access: yesAdvanced Materials, EarlyView.
Giant unilamellar vesicles (GUVs), when combined with silica particles under alternating electric fields, spontaneously self‐assemble into motile structures. Asymmetric particle decoration induces fluid flows that propel the assemblies, enabling persistent motion and reversible control.
Selcan Karaz   +5 more
wiley   +1 more source

Autonomous satellite orbit determination during the development phases of the global positioning system [PDF]

open access: yes
An onboard navigation system was developed to aid the design and evaluation of algorithms used in autonomous satellite navigation with Global Positioning System (GPS) data. The performance of the algorithms designed for a GPS Receiver/Processor Assembly (
Dunham, J. B.
core   +1 more source

Tailoring Advanced Metal‐Based Nanomedicines for Adaptable Nanodynamic Disease Therapies and Theranostics

open access: yesAdvanced Materials, EarlyView.
This review summarizes recent advances in metal‐based nanomaterials (MBNs) as multifunctional platforms for next‐generation diagnostics and nanodynamic therapies (NDTs), highlighting their structural tunability, diverse therapeutic modalities, and broad biomedical applications in oncology and infectious disease control.
Qihang Ding   +11 more
wiley   +1 more source

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