Results 121 to 130 of about 228,586 (380)

Simulator of GNSS signals for testing of space objects receivers in the earth conditions

open access: yesJournal of Measurement Science and Instrumentation, 2018
A technique for testing space object receivers using global navigation satellite system(GNSS)signal simulator of the navigation field is proposed.Its structure consists of two blocks which allow synthesizing the scenario of reciprocal displacement of the
Yu Khomenko   +5 more
doaj  

Design of a low-cost augmentation navigation system: the United Kingdom's immediate answer to the Galileo Brexit conundrum [PDF]

open access: yes, 2019
United Kingdom’s Brexit from the European Union implies restricted access to the European Global Navigation Satellite System (GNSS) System - Galileo; with no access to the secured and encrypted signal used for defense and government purposes, which is ...
Chatwin, Chris Reginald   +1 more
core  

Performance of Selected Ionospheric Models in Multi-Global Navigation Satellite System Single-Frequency Positioning over China

open access: yesRemote Sensing, 2019
Ionospheric delay as the major error source needs to be properly handled in multi-GNSS (Global Navigation Satellite System) single-frequency positioning and the different ionospheric models exhibit apparent performance difference.
Ahao Wang   +4 more
semanticscholar   +1 more source

Magnetoelectric Nanoparticle‐Based Wireless Brain–Computer Interface: Underlying Physics and Projected Technology Pathway

open access: yesAdvanced Science, EarlyView.
Magnetoelectric nanoparticles (MENPs) enable fully wireless, minutely invasive neuromodulation, and potentially neural recording, by converting magnetic into electric and, conversely, electric into magnetic fields, respectively, at high spatiotemporal resolution.
Elric Zhang   +14 more
wiley   +1 more source

SIG aplicado al cálculo de los valores de altura ortométrica usando un modelo de ondulación geoidal para el Distrito Metropolitano de Quito, Ecuador. [PDF]

open access: yes, 2012
Traditionally, to obtain high values of any point on the surface of the Earth, they had to perform direct processes of data collection, such as geometric level effect, which involves very high costs and a long time in order to run.
Zurita Lozada, Patricio Javier
core  

Probing the Flyby Anomaly with the future STE-QUEST mission

open access: yes, 2012
In this study, we demonstrate that the flyby anomaly, an unexpected acceleration detected in some of the gravitational assists of the Galileo, NEAR, Cassini and Rosetta spacecraft, could be probed by accurate orbital tracking available in the proposed ...
Hechenblaikner, Gerald, Páramos, Jorge
core   +1 more source

High‐Throughput Screening and Interpretable Machine Learning for Rational Design of Bimetallic Catalysts for Methane Activation

open access: yesAdvanced Science, EarlyView.
ABSTRACT Methane's efficient catalytic removal is vital for sustainable development. Bimetallic catalysts, though promising for methane activation, pose a design challenge due to their complex compositional space. This work introduces an integrated framework that combines high‐throughput density functional theory (DFT) and interpretable machine ...
Mingzhang Pan   +8 more
wiley   +1 more source

Artificial Intelligence Predictions in Huge Chemical Spaces: Chiroptical Properties of [6]‐helicene Family

open access: yesAdvanced Science, EarlyView.
This study shows that a local, data‐driven AI model can accurately predict diverse optical and chiroptical properties of [6]helicenes using information from close structural neighbours. Combined with genetic algorithms, it enables inverse design for tailored properties, establishing practical structure–property rules for efficient molecular discovery ...
Rafael G. Uceda   +8 more
wiley   +1 more source

Foreword to the Special Issue on Cyclone Global Navigation Satellite System (CYGNSS) Early on Orbit Performance [PDF]

open access: bronze, 2018
Estel Cardellach   +52 more
openalex   +1 more source

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