Results 41 to 50 of about 8,189 (339)

METHODOLOGY FOR ESTIMATING LANDSLIDES SUSCEPTIBILITY USING ARTIFICIAL NEURAL NETWORKS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
In this study, the susceptibility to landslides at Sevilla township, Valle del Cauca, located at southwest of Colombia was evaluated. The conditioning factors that involve the generation of landslides were evaluated using Geographic Information Systems ...
E. N. Muñoz   +2 more
doaj   +1 more source

The Geology of Pluto and Charon Through the Eyes of New Horizons [PDF]

open access: yesScience 351, 1284 (2016), 2016
NASA's New Horizons spacecraft has revealed the complex geology of Pluto and Charon. Pluto's encounter hemisphere shows ongoing surface geological activity centered on a vast basin containing a thick layer of volatile ices that appears to be involved in convection and advection, with a crater retention age no greater than $\approx$10 Ma.
arxiv   +1 more source

Dike Propagation During Global Contraction: Making Sense of Conflicting Stress Histories on Mercury

open access: yesFrontiers in Earth Science, 2021
Thrust fault-related landforms, smooth plains units, and impact craters and basins have all been observed on the surface of Mercury. While tectonic landforms point to a long-lived history of global cooling and contraction, smooth plains units have been ...
Kelsey Crane, Allison Bohanon
doaj   +1 more source

3D geological model-based hydraulic fracturing parameters optimization using geology–engineering integration of a shale gas reservoir: A case study

open access: yesEnergy Reports, 2022
Tremendous reserves of shale gas resources exhibit broad development prospects in southern Sichuan, China. ”Horizontal well + hydraulic fracturing” is taken as the principal means of shale gas reservoirs development.
Yuyang Liu   +6 more
doaj  

Direct current resistivity with steel-cased wells [PDF]

open access: yes, 2018
The work in this paper is motivated by the increasing use of electrical and electromagnetic methods in geoscience problems where steel-cased wells are present. Applications of interest include monitoring carbon capture and storage and hydraulic fracturing operations, as well as detecting flaws or breaks in degrading steel-casings -- such wells pose ...
arxiv   +1 more source

Two-phase geothermal model with fracture network and multi-branch wells [PDF]

open access: yesarXiv, 2021
This paper focuses on the numerical simulation of geothermal systems in complex geological settings. The physical model is based on two-phase Darcy flows coupling the mass conservation of the water component with the energy conservation and the liquid vapor thermodynamical equilibrium.
arxiv  

π–π Conjugated Bonds Stacking/Scattering for Switchable Lubrication in Supramolecular Hydrogel

open access: yesAdvanced Science, EarlyView.
Inspired by the hagfish′s behavior of secreting mucus to escape from predators, a dual‐responsive intelligent lubricating material (PPRA) is successfully prepared. When PPRA is heated or sheared, a partial gel‐sol transition occurs in the hydrogel, resulting in a sol‐state RPAD layer forming on the surface, which acts as a lubricating layer and reduces
Shuhang Deng   +14 more
wiley   +1 more source

Sedimentary Sequence, Evolution Model and Petroleum Geological Significance of Forced Regression: A Case Study of the Miocene Zhujiang Formation of the Pearl River Mouth Basin in the Northern South China Sea

open access: yesJournal of Marine Science and Engineering, 2021
Using 2D/3D seismic data and a large number of drilling and logging data and applying sequence stratigraphy, seismic sedimentology, and petroleum geology concepts, the characteristics of the sedimentary sequence of the forced regression have been ...
Ye Yu   +6 more
doaj   +1 more source

DeFault: Deep-learning-based Fault Delineation Using the IBDP Passive Seismic Data at the Decatur CO2 Storage Site [PDF]

open access: yesarXiv, 2023
The carbon capture, utilization, and storage (CCUS) framework is an essential component in reducing greenhouse gas emissions, with its success hinging on the comprehensive knowledge of subsurface geology and geomechanics. Passive seismic event relocation and fault detection serve as indispensable tools, offering vital insights into subsurface ...
arxiv  

An Assessment of Blended Short Loop Recycled Graphite Electrodes Using X‐Ray Micro‐Computed Tomography

open access: yesAdvanced Energy Materials, EarlyView.
X‐ray micro‐computed tomography is useful for assessing structural and diffusivity changes within short‐loop recycled electrode materials. Delamination via water with and without ultrasonic assistance, influences the structure of the remanufactured electrodes.
Sean Scott   +5 more
wiley   +1 more source

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