Results 21 to 30 of about 25,829 (261)
Sensitivity limit investigation of a Sagnac gyroscope through linear regression analysis
European Physical Journal C: Particles and Fields, 2021 The sensitivity to angular rotation of the top class Sagnac gyroscope GINGERINO is carefully investigated with standard statistical means, using 103 days of continuous operation and the available geodesic measurements of the Earth angular rotation rate ...
Angela D. Di Virgilio +16 more
doaj +1 more source
Remote Sensing, 2019 This study evaluates the gravity field solutions based on high-low satellite-to-satellite tracking (hl-SST) of low-Earth-orbit (LEO) satellites: GRACE, Swarm, TerraSAR-X, TanDEM-X, MetOp-A, MetOp-B, and Jason 2, by converting them into hydrological polar
Justyna Śliwińska, Jolanta Nastula
doaj +1 more source
Yantu gongcheng xuebao, 2021 Taking the retaining wall in cohesive and cohesionless backfills as the research object, based on the existing results, a formula for calculating the earth pressure under the limited displacement considering the influences of internal friction angle is ...
ZHANG Le 1, DANG Fa-ning 1, WANG Xu 1, DING Jiu-long 1, GAO Jun 1
doaj +1 more source
Research on the operational regional coverage of satellite and spacecraft tracking and controlling [PDF]
MATEC Web of Conferences, 2020 In view of the problem of building ground stations for tracking and controlling of satellites and spacecraft, considering the fixed angle between the orbit of the satellite or spacecraft and the equatorial surface of the earth, and the difference of ...
Qi Lihua +3 more
doaj +1 more source
Are Ocean Reanalyses Useful for Earth Rotation Research?
Earth and Space Science, 2023 Oceanic circulation and mass‐field variability play important roles in exciting Earth's wobbles and length‐of‐day changes (ΔΛ), on time scales from days to several years.
L. Börger +3 more
doaj +1 more source
Considerations regarding the variability of Earth-Sun geometry and the climate variability in south-western Romania [PDF]
Riscuri şi Catastrofe, 2019 The variability of the Sun-Earth geometry is particularly high during the year due to the specific trajectory of the planet Earth around the Sun, the rotation motion of the Earth around its axis, the inclination of the rotation axis with respect to the ...
I. MARINICĂ, ANDREEA MARINICĂ
doaj +1 more source
Geodesy and Geodynamics, 2018 The 18th International Symposium on Geodynamics and Earth Tides 2016 covered phenomena that generate temporal variations in geodetic and geophysical observations. In calculating the stress field for Earth tides, the observed geodetic response is used for
Carla Braitenberg
doaj +1 more source
Calculation Method of Earth Pressure Considering Wall Displacement and Axial Stress Variations
Applied Sciences, 2023 Current earth pressure calculation methods suffer from certain limitations because they do not consider the effect of retaining wall displacement.
Faning Dang +5 more
doaj +1 more source
Yantu gongcheng xuebao, 2018 Considering the rotation of the principal stresses, new formulae for seismic active pressures on rigid retaining walls under rotation about top (RT mode) are derived by the pseudo-static method.
ZHANG Wen-ping 1, ZHOU Yi-tao 2, YU Jin 1,3, LIU Shi-yu 1, CAI Yan-yan 1,3, YU Chuang 4
doaj +1 more source
A possible interrelation between Earth rotation and climatic variability at decadal time-scale
Geodesy and Geodynamics, 2016 Using multichannel singular spectrum analysis (MSSA) we decomposed climatic time series into principal components, and compared them with Earth rotation parameters. The global warming trends were initially subtracted.
Leonid Zotov, C. Bizouard, C.K. Shum
doaj +1 more source