Results 31 to 40 of about 48,344 (297)

Mathematical Modeling of the Working Principle of Gravity Gradient Instrument [PDF]

, 2017
Gravity field is of great significance in geoscience, national economy and national security, and gravitational gradient measurement has been extensively studied due to its higher accuracy than gravity measurement.
Juliang Cao, Danni Cong, Shaokun Cai, Xiaofeng He, Junxiang Lian, Meiping Wu, Hua Mu, Hao Qin   +7 more
core   +1 more source

Galanin and Adrenomedullin Plasma Responses During Artificial Gravity on a Human Short-Arm Centrifuge

Frontiers in Physiology, 2019
Galanin and adrenomedullin plasma responses to head-up tilt and lower body negative pressure have been studied previously. However, to what extent short-arm human centrifugation (SAHC) affects these responses is not known.
Julia Winter, Charles Laing, Charles Laing, Bernd Johannes, Edwin Mulder, Bianca Brix, Andreas Roessler, Johannes Reichmuth, Joern Rittweger, Joern Rittweger, Nandu Goswami   +10 more
doaj   +1 more source

Vertical gravity gradient modeling and its influence on gravity datum transfer

Geodesy and Geodynamics
In the past, the free-air gradient −308.6 × 10−8 s−2 was used as the vertical gravity gradient of the measuring point in gravity data processing, which resulted in inaccurate instrument height corrections.
Tianxiang Zhou, Hongbo Tan, Guangliang Yang, Rugang Xu, Xinlin Zhang, Jiapei Wang, Sheng Liu, Hengzhou Meng, Ziheng Chen   +8 more
doaj   +1 more source

Laboratory dynamic accuracy evaluation method and system verification for gravity gradiometer

地震科学进展
To meet the demand for reliably evaluating the measurement accuracy of the gravity gradiometer under dynamic conditions, a method for dynamically assessing the accuracy of the gravity gradiometer in a laboratory setting was proposed.
Da Li, Chengsuo Li, Wei Gao, Zishan Zhang, Li Wu, Zhong Li   +5 more
doaj   +1 more source

Selection of an optimum global gravitational model for geological mapping of Afikpo and Anambra Basins in Nigeria

Geodesy and Cartography, 2022
Combined Global Gravitational Models (GGMs) are being used in numerous geoscience applications, most notably for gravimetric geoid modeling (in geodesy) and for geological mapping and geophysical explorations (in the Earth’s sciences).
Ojima Isaac Apeh, Robert Tenzer
doaj   +1 more source

An integrated method for gravity gradient inversion and gravity gradient depth imaging

Geophysical Journal International
SUMMARY Gravity gradient data can show the structural features of geological bodies in the shallow lithosphere with higher sensitivity and resolution than conventional gravity data. Gravity gradient inversion can be applied to obtain the lithospheric density structures of geological bodies. However, as with gravity data, gravity gradient
Yu Tian, Jinzhao Liu, Qing Ye, Lei Shi, Yong Wang, Jörg Ebbing   +5 more
openaire   +1 more source

Additive Manufacturing of Continuous Fibre Reinforced Composites: Process, Characterisation, Modelling, and Sustainability

Advanced Engineering Materials, EarlyView.
Additive manufacturing provides precise control over the placement of continuous fibres within polymer matrices, enabling customised mechanical performance in composite components. This article explores processing strategies, mechanical testing, and modelling approaches for additive manufactured continuous fibre‐reinforced composites.
Cherian Thomas, Amir Hosein Sakhaei
wiley   +1 more source

COSEISMIC AND POSEISMIC GRAVITY CHANGES OBTAINED FROM GRACE SATELLITE DATA DURING THE POWERFUL TOHOKU-OKI EARTHQUAKE OF 11 MARCH 2011 [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2013
In this paper, we study the gravitational gradient changes induced 11 March 2011 Mw 9.0 Tohoku-Oki earthquake using data gathered by Gravity Recovery and Climate Experiment (GRACE) satellite.
M. Akhoondzadeh, M. A. Sharifi, M. Shahrisvand   +2 more
doaj   +1 more source

Workflow for Design of Experiments‐Based Modeling of Species Transport and Growth Kinetics in GaN Hydride Vapor Phase Epitaxy

Advanced Engineering Materials, EarlyView.
A novel workflow for investigating hydride vapor phase epitaxy for GaN bulk crystal growth is proposed. It combines Design of experiments (DoE) with physical simulations of mass transport and crystal growth kinetics, serving as an intermediate step between DoE and experiments.
J. Tomkovič, G. Lukin, H. Torkashvand, A. Kerschbaum, M. Müller, S. Besendörfer, J. Heitmann, J. Friedrich   +7 more
wiley   +1 more source

GOCE Downward Continuation to the Earth’s Surface and Improvements to Local Geoid Modeling by FFT and LSC

Remote Sensing, 2023
One of the main applications of the gravity field and steady-state Ocean Circulation Explorer (GOCE) satellite data is their combination with local gravity anomalies for geoid and gravity field modeling purposes.
Dimitrios A. Natsiopoulos, Elisavet G. Mamagiannou, Eleftherios A. Pitenis, Georgios S. Vergos, Ilias N. Tziavos   +4 more
doaj   +1 more source