Results 31 to 40 of about 19,558 (329)

Research and Evaluation on Key Technological Indicators for Airborne and Shipborne Gravimetry [PDF]

open access: yesJournal of Geodesy and Geoinformation Science, 2019
Gravimetry technical guides are the scientific basis for air-sea gravimetry. However, the existing technical guides in China are behind the application requirements.
Motao HUANG,Kailiang DENG,Taiqi WU,Xiuping LU,Guojun ZHAI,Yongzhong OUYANG,Xin CHEN,Min LIU
doaj   +1 more source

Methods for Underwater Gravity Measurement Error Compensations Based on Correlation Analysis

open access: yesApplied Sciences, 2022
The measurement of Earth’s gravitational field is important in geophysics, geodynamics, geodesy, oceanography, and space science. The ocean covers 71% of the earth’s surface; therefore, measuring the ocean’s gravitational field is crucial.
Dongyao Yu   +5 more
doaj   +1 more source

A two-state Kalman estimator for atomic gravimetry [PDF]

open access: yes, 2023
We present a two-state Kalman estimator of gravity acceleration and evaluate its performance by numerical simulations and post-measurement demonstration with real-world atomic gravimetry.
Bo-Nan Jiang, Jiang, Bo-Nan
core   +1 more source

High-Precision Quantum-Enhanced Gravimetry with a Bose-Einstein Condensate. [PDF]

open access: yesPhysical Review Letters, 2020
We show that the inherently large interatomic interactions of a Bose-Einstein condensate (BEC) can enhance the sensitivity of a high precision cold-atom gravimeter beyond the shot-noise limit (SNL).
S. Szigeti   +3 more
semanticscholar   +1 more source

Characterizing Stalagmites’ Eigenfrequencies by Combining In Situ Vibration Measurements and Finite Element Modeling Based on 3D Scans

open access: yesGeosciences, 2020
Broken or deformed speleothems have been used as indicators of paleo-earthquakes since the 1990s; however, a causal link is difficult to prove except for some thin speleothems.
Aurélie Martin   +5 more
doaj   +1 more source

Extreme Hydrometeorological Events, a Challenge for Gravimetric and Seismology Networks

open access: yesEarth's Future, 2022
Extreme events will become more common due to global change, requiring enhanced monitoring and pushing conventional observation networks to their limits.
Michel Van Camp   +5 more
doaj   +1 more source

Adsorption of N,N,N′,N′-Tetraoctyl Diglycolamide on Hypercrosslinked Polysterene from a Supercritical Carbon Dioxide Medium

open access: yesMolecules, 2021
The work considers for the first time the preparation of sorbents based on hypercrosslinked polysterene (HCP) and chelating agent N,N,N′,N′-tetraoctyl diglycolamide (TODGA) by impregnation in the supercritical (SC) CO2 medium.
Mikhail Kostenko, Olga Parenago
doaj   +1 more source

Monitoring the ocean heat content change and the Earth energy imbalance from space altimetry and space gravimetry

open access: yesEarth System Science Data, 2021
. The Earth energy imbalance (EEI) at the top of the atmosphere is responsible for the accumulation of heat in the climate system. Monitoring the EEI is therefore necessary to better understand the Earth’s warming climate.
Florence Marti   +11 more
semanticscholar   +1 more source

Hybrid Gravimetry to Map Water Storage Dynamics in a Mountain Catchment

open access: yesFrontiers in Water, 2022
In mountain areas, both the ecosystem and the local population highly depend on water availability. However, water storage dynamics in mountains is challenging to assess because it is highly variable both in time and space.
Q. Chaffaut   +7 more
semanticscholar   +1 more source

Phytochemical Analysis of the Aerial Part of Golden Dock (Rumex Maritimus L.)

open access: yesРазработка и регистрация лекарственных средств, 2023
Introduction. Golden dock (Rumex maritimus L., Polygonaceae) is used as a medicinal and food plant in Asian countries. The plant contains phytochemicals of various classes: flavonoids, tannins, anthraquinones etc.
V. V. Podgurskaya   +4 more
doaj   +1 more source

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