Results 71 to 80 of about 5,753,745 (253)

Finite element analysis of lateral earth pressure on sheet pile walls

open access: yesEngineering Geology, 2018
Sheet pile walls providing lateral earth support are widely employed as excavation supporting systems for cutting slopes along the high-speed railway. In this study, a validated three-dimensional finite element (FE) model based on field measurements was ...
Liang Tang   +6 more
semanticscholar   +1 more source

Impact of Earth radiation pressure on LAGEOS orbits and on the global scale [PDF]

open access: yes, 2013
The indirect solar radiation pressure caused by reflected or re-emitted radiation by the Earth’s surface is an important non-gravitational force perturbing the orbits of geodetic satellites (Rubincam and Weiss, 1986; Martin and Rubincam, 1996).
Thaller, Daniela   +6 more
core  

A passive satellite deorbiting strategy for MEO using solar radiation pressure and the J2 effect

open access: yes, 2011
The growing population of space debris poses a serious risk to the future of space flight. To effectively manage the increase of debris in orbit, end-of life disposal has become a key requirement for future missions.
Colombo, Camilla   +3 more
core   +1 more source

A role for subducting clays in the water transportation into the Earth’s lower mantle

open access: yesNature Communications
Subducting sedimentary layer typically contains water and hydrated clay minerals. The stability of clay minerals under such hydrous subduction environment would therefore constraint the lithology and physical properties of the subducting slab interface ...
Yoonah Bang   +9 more
doaj   +1 more source

Pressure calibrations of high-pressure large-volume presses at HPSTAR [PDF]

open access: yesMatter and Radiation at Extremes
Large-volume presses (LVPs) are widely utilized in diverse research fields—including high-pressure physics, chemistry, materials science, and Earth and planetary sciences—to investigate the physical and chemical properties of materials under extreme high-
Yongjiang Xu   +38 more
doaj   +1 more source

Carbon-driven Chemical Interactions between Alumina and Iron: A possible reaction pathway in Earth's interior

open access: yes, 2008
Seismological and geochemical observations have revealed a complex structure for the earth's core-mantle boundary (CMB) region, with lateral and chemical heterogeneities.
Rita Khanna   +2 more
core  

Toward The Simulation Of Attenuation: Oscillatory Flow In Porous Rock [PDF]

open access: yes, 1998
Fluid flow in porous rock due to an oscillatory pressure gradient is simulated. We observe distributions of density and velocity in the rock which point to viscous dissipation.
Olson, John F.
core  

Lateral Earth Pressure [PDF]

open access: yes, 2020
30043 - Rekayasa Pondasi 1 - Lateral Earth Preassure - Actiave Earth Pressure - Passive Earth ...
Meiwa, Sherly
core  

Chemical diffusion of fluorine in jadeite melt at high pressure [PDF]

open access: yes, 1984
The chemical diffusion of fluorine in jadeite melt has been investigated from 10 to 15 kbars and 1200 to 1400°C using diffusion couples of Jadeite melt and fluorine-bearing jadeite melt (6.3 wt.% F). The diffusion profile data indicate that the diffusion
Scarfe, Christopher M.   +1 more
core   +1 more source

Orbit design for future SpaceChip swarm missions in a planetary atmosphere

open access: yes, 2012
The effect of solar radiation pressure and atmospheric drag on the orbital dynamics of satellites-on-a-chip (SpaceChips) is exploited to design equatorial long-lived orbits about the oblate Earth.
Colombo, Camilla, McInnes, Colin
core   +1 more source

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