Results 1 to 10 of about 2,314 (174)

SPACE WEATHER: RISK FACTORS FOR GLOBAL NAVIGATION SATELLITE SYSTEMS

open access: yesSolar-Terrestrial Physics, 2021
Extreme space weather events affect the stability and quality of the global navigation satellite systems (GNSS) of the second generation (GPS, GLONASS, Galileo, BeiDou/Compass) and GNSS augmentation.
V.V. Demyanov, Yu.V. Yasyukevich
doaj   +1 more source

A Cycle Slip Detection Framework for Reliable Single Frequency RTK Positioning

open access: yesSensors, 2020
Single frequency real-time kinematic (RTK) positioning is expected to be the leading implementation platform for a variety of emerging GNSS mass-market applications.
Salma Zainab Farooq   +2 more
doaj   +1 more source

The implications of ionospheric disturbances for precise GNSS positioning in Greenland

open access: yesJournal of Space Weather and Space Climate, 2022
Ionospheric irregularities impair Global Navigation Satellite System (GNSS) signals and, in turn, affect the performance of GNSS positioning. Such effects are especially evident at low and high latitudes, which are currently gaining the attention of ...
Paziewski Jacek   +11 more
doaj   +1 more source

The RTK Interactome: Overview and Perspective on RTK Heterointeractions [PDF]

open access: yesChemical Reviews, 2018
Receptor tyrosine kinases (RTKs) play important roles in cell growth, motility, differentiation, and survival. These single-pass membrane proteins are grouped into subfamilies based on the similarity of their extracellular domains. They are generally thought to be activated by ligand binding, which promotes homodimerization and then autophosphorylation
Michael D. Paul, Kalina Hristova
openaire   +2 more sources

A PPP-RTK APPROACH TO MASS-MARKET APPLICATIONS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2023
PPP-RTK has been widely investigated to take the advantages of both real-time kinematic (RTK) and precise point positioning (PPP) techniques. Prior to PPP-RTK, the conventional RTK based on the use of a single base station, on the one hand, has been ...
Y. Gao, Y. Zhang, Z. Lyu
doaj   +1 more source

Analysis of differences in accuracy of positioning tied to various CORS networks in Poland: Case study

open access: yesReports on Geodesy and Geoinformatics, 2023
Network Real Time Kinematic (NRTK) measurements are currently the most popular surveying method in geodesy. In most countries, there are networks of Continuously Operating Reference Stations (CORS), which form the core of the terrestrial infrastructure ...
Uznański Andrzej
doaj   +1 more source

Református egyházkormányzat a Tiszántúlon és az erdélyi fejedelemi hatalom

open access: yesStudia Universitatis Babeş-Bolyai. Theologia Reformata Transylvanica, 2017
Reformed Church Government in the Transtibiscan Area and the Rule of the Principality of Transylvania. The formation of the Protestant church hierarchy started already when a separate position was established to ordinate Protestant pastors ...
István SZABADI
doaj   +1 more source

Integridade no posicionamento RTK e RTK em rede [PDF]

open access: yesBoletim de Ciências Geodésicas, 2010
Os avanços tecnológicos nos métodos de posicionamento têm possibilitado o desenvolvimento de metodologias que viabilizam a sua utilização pelo usuário numa diversidade de aplicações. Um dos métodos de posicionamento GNSS (Global Navigation Satellite System) de grande destaque é o RTK (Real Time Kinematic), cujo conceito tem como princípio básico a alta
Barbosa, Eduardo de Magalhães   +3 more
openaire   +4 more sources

Analysis of the main errors and assessment of the accuracy of industrial robots

open access: yesТехнічна інженерія, 2020
The main technical characteristics of industrial robots are considered, notably nominal load capacity, number of degrees of mobility, magnitude and speed of movement by degrees of mobility, working area, working space and service area of industrial ...
M.V. Bogdanovskyi
doaj   +1 more source

The trigger (and the restriction) of Torso RTK activation [PDF]

open access: yesOpen Biology, 2018
The Torso pathway is an ideal model of receptor tyrosine kinase systems, in particular when addressing questions such as how receptor activity is turned on and, equally important, how it is restricted, how different outcomes can be generated from a ...
Alessandro Mineo   +2 more
doaj   +1 more source

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