Results 61 to 70 of about 261,794 (327)

Regional GNSS Common Mode Error Correction to Refine the Global Reference Frame

open access: yesRemote Sensing
Common mode error (CME) arises from various sources, including unknown regional errors, potential geophysical signals, and other factors present in global navigation satellite system (GNSS) coordinate solutions, undeniably affecting the GNSS precision ...
Ruyuan Wang   +4 more
doaj   +1 more source

Establishment of Terrestrial Reference Frames by New Observational Techniques [PDF]

open access: yesInternational Astronomical Union Colloquium, 1980
AbstractThe use of space techniques for establishing transcontinental and intercontinental distances is progressing very rapidly. We can think of the set of station locations used in either LAGEOS ranging or VLBI measurements as forming the vertices of a polyhedron.
openaire   +1 more source

Bonding of Acrylic Pressure‐Sensitive Adhesives and Silicone Elastomers via Surfactant‐Assisted Plasma Activation for Soft Robotics

open access: yesAdvanced Materials Interfaces, EarlyView.
A simple strategy is presented for bonding acrylic PSAs and silicone elastomers by curing surfactant‐doped Ecoflex on oxygen‐plasma‐treated VHB. The interface reaches a maximum strength of 1.6 N/mm (over 20 times that of the control) while retaining material compliance.
Kengo Kusama   +7 more
wiley   +1 more source

Thirty Years of Maintaining WGS 84 with GPS

open access: yesNavigation
With the release of a new International Terrestrial Reference Frame (ITRF) in April 2022, the National Geospatial-Intelligence Agency (NGA) began the process of aligning the World Geodetic System 1984 Terrestrial Reference Frame (WGS 84 TRF) to the ...
William Konyk   +3 more
doaj   +1 more source

The RAP Net: A Geodetic Positioning Network for Andalusia (South Spain) [PDF]

open access: yes, 2006
The Council of Public Works and Housing of the Government of Andalusia by means of the Andalusian Cartographic Institute has set a positioning geodetic network named Andalusian Positioning Network (RAP).
Berrocoso Domínguez, Manuel   +3 more
core   +1 more source

Astrometry and geodesy with radio interferometry: experiments, models, results

open access: yes, 1997
Summarizes current status of radio interferometry at radio frequencies between Earth-based receivers, for astrometric and geodetic applications. Emphasizes theoretical models of VLBI observables that are required to extract results at the present ...
Aoki, S.   +176 more
core   +2 more sources

Unlocking the Potential of MXene‐Based Electrochemical Biosensors: A Review of Biofunctionalization Strategies and Biosensing Principles

open access: yesAdvanced Materials Technologies, EarlyView.
ABSTRACT Electrochemical biosensors enable the accurate and timely detection of clinical biomarkers, improving healthcare and precision medicine. MXene nanosheets, a class of 2D transition metal carbides, nitrides, and carbonitrides, are promising materials for developing next‐generation electrochemical biosensors due to their unique physicochemical ...
Muhsin Ali   +4 more
wiley   +1 more source

Estimation of the local tidal parameters h2, l2 for the Riga satellite laser ranging station based on LAGEOS data [PDF]

open access: yesEstonian Journal of Earth Sciences, 2019
The paper presents estimates of local tidal parameters (Love and Shida numbers) h2, l2 for the Riga (No. 18844401, Latvia) satellite laser ranging station based on LAGEOS-1 and LAGEOS-2 data for a period of 15 years (01.01.2004–01.01.2019).
Marcin Jagoda, Miłosława Rutkowska
doaj   +1 more source

Planning of an Experiment for VLBI Tracking of GNSS Satellites [PDF]

open access: yes, 2010
As a preparation for future possible orbit determination of global navigation satellite system (GNSS) satellites by VLBI observations an initial three-station experiment was planned and performed in January 2009.
Hass, Ruediger   +3 more
core   +1 more source

Space-enhanced terrestrial solar power for equatorial regions [PDF]

open access: yes, 2019
This Paper investigates the concept of solar mirrors in an Earth orbit to provide large-scale terrestrial equatorial solar farms with additional solar power during the hours of darkness. A flower constellation of mirrors is considered in highly eccentric
Bonetti, F., McInnes, C.
core   +1 more source

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