Results 1 to 10 of about 1,367 (141)

Sex ratio of Nemacheilus multifasciatus (Hillstream Loach) in the Heval River of Garhwal Himalaya, Uttarakhand, India

Environment Conservation Journal
Nemacheilus multifasciatus is a hillstream loach that contributes to the stability of Himalayan ecosystems and supports local subsistence fisheries. This study aimed to evaluate the sex ratio of the N.
Deeksha Kapruwan, Rajesh Rayal, Kamal Bijlwan, Ruby Pokhriyal, Indra Rautela, Poonam Prabha Semwal   +5 more
doaj   +1 more source

Monitoring nonlinear and fast deformation caused by underground mining exploitation using multi-temporal Sentinel-1 radar interferometry and corner reflectors: application, validation and processing obstacles

International Journal of Digital Earth, 2023
In this study, Differential Interferometric Synthetic Aperture Radar Interferometry (DInSAR) of artificial Corner Reflectors (CRs) were validated in the area of fast and nonlinear deformation gradient caused by active coal longwall exploitation.
Kamila Pawłuszek-Filipiak, Natalia Wielgocka, Damian Tondaś, Andrzej Borkowski   +3 more
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L1 SFMC SBAS Message for Service Expansion of Multi-Constellation GNSS Support

IEEE Access, 2023
Currently operating satellite-based augmentation systems (SBASs) provide an augmentation service that improves global positioning system (GPS) performance at 250 bps via the L1 signal.
Cheolsoon Lim, Byungwoon Park, Youngsun Yun   +2 more
doaj   +1 more source

Resting and postprandial serum bile acid concentrations in dogs with liver disease

Journal of Veterinary Internal Medicine, 2021
Background Serum bile acids (SBAs) are frequently measured in dogs. However, there is limited data comparing SBAs in different liver diseases diagnosed according to standardized histological criteria.
Jorge Pena‐Ramos, Lucy Barker, Rocío Saiz, David J. Walker, Simon Tappin, Cassia H. Z. Hare, Madeleine L. Roberts, Tim L. Williams, Nicholas Bexfield   +8 more
doaj   +1 more source

ACCURACY ANALYSIS OF UAV COORDINATES USING EGNOS AND SDCM AUGMENTATION SYSTEMS [PDF]

Scientific Journal of Silesian University of Technology. Series Transport
SBAS systems are applied in precise positioning of UAV. The paper presents the results of studies on the improvement of UAV positioning with the use of the EGNOS+SDCM solutions.
Kamil KRASUSKI, Damian WIERZBICKI, Małgorzata KIRSCHENSTEIN, Marta ŻUKOWSKA, Paweł GOŁDA   +4 more
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Review of the SBAS InSAR Time-series algorithms, applications, and challenges

Geodesy and Geodynamics, 2022
In the past 30 years, the small baseline subset (SBAS) InSAR time-series technique has emerged as an essential tool for measuring slow surface displacement and estimating geophysical parameters.
Shaowei Li, Wenbin Xu, Zhiwei Li
doaj   +1 more source

Ground Deformations Controlled by Hidden Faults: Multi-Frequency and Multitemporal InSAR Techniques for Urban Hazard Monitoring

Remote Sensing, 2019
This work focuses on the study of land subsidence processes by means of multi-temporal and multi-frequency InSAR techniques. Specifically, we retrieve the long-term evolution (2003−2018) of the creeping phenomenon producing ground fissuring in the ...
Federica Murgia, Christian Bignami, Carlo Alberto Brunori, Cristiano Tolomei, Luca Pizzimenti   +4 more
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Wide-Area InSAR Survey of Surface Deformation in Urban Areas and Geothermal Fields in the Eastern Trans-Mexican Volcanic Belt, Mexico

Remote Sensing, 2019
This paper provides the first wide-area Interferometric Synthetic Aperture Radar (InSAR) survey of the whole eastern Trans-Mexican Volcanic Belt (42,200 km2).
Francesca Cigna, Deodato Tapete, Víctor Hugo Garduño-Monroy, Jesús Arturo Muñiz-Jauregui, Oscar Humberto García-Hernández, Adrián Jiménez-Haro   +5 more
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EGNOS: il GPS Augmenting System per l'Europa

GEOmedia, 2010
EGNOS: Europe's GPS Augmenting System Today, the actual positioning satellite technology allows a great number of civil applications for our life, but many of them are not yet achievable due to the low level of performance of the positioning service ...
Gianluca Pititto
doaj   +2 more sources

Evaluation of GNSS positioning accuracy from satellite-based augmentation systems in Thailand

Engineering and Applied Science Research, 2022
Satellite Based Augmentation System (SBAS) provides correction message services as an additional system to navigation satellites. Several SBAS services exist in many regions and usually cover a large area. Although, Thailand is not geographically located
Phunsap Thari, Somchai Kriengkraiwasin, Chalermchon Satirapod   +2 more
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