Results 11 to 20 of about 859,885 (294)

Deformation-based surface morphometry applied to gray matter deformation [PDF]

open access: yesNeuroImage, 2003
We present a unified statistical approach to deformation-based morphometry applied to the cortical surface. The cerebral cortex has the topology of a 2D highly convoluted sheet. As the brain develops over time, the cortical surface area, thickness, curvature, and total gray matter volume change. It is highly likely that such age-related surface changes
Moo K, Chung   +7 more
openaire   +4 more sources

Research on surface deformation law of closed mines based on SBAS-InSAR

open access: yesGong-kuang zidonghua, 2021
After the mine is closed, the coal and rock mass undergoes weathering degradation and strength reduction under the action of various factors such as stress, groundwater and oxygen.
YU Hao   +3 more
doaj   +1 more source

Influence of geological factors on surface deformation due to hydrocarbon exploitation using time-series InSAR: A case study of Karamay Oilfield, China

open access: yesFrontiers in Earth Science, 2023
Surface deformation due to hydrocarbon extraction from buried reservoirs may gradually evolve to geological hazards, which can undermine the safety of infrastructure facilities.
Lei Xu   +7 more
doaj   +1 more source

Surface deformation of the secondary former mining areas

open access: yesMining Science, 2013
The paper discuss the problem of secondary deformation observed on the surface of the land in the area of the old, non-existent copper and coal mines.
Tadeusz Głowacki, Wojciech Milczarek
doaj   +1 more source

Research on mechanical response of artificial dam under gas explosion in roadway

open access: yesGong-kuang zidonghua, 2023
When a gas explosion occurs in a mine, the explosion shock wave can damage the water storage dam, leading to a large amount of water gushing out of the goaf, and even causing gas water coupling disasters. Therefore, the stability of artificial dams under
QU Shijia, YANG Huan
doaj   +1 more source

Microscopic Observation of Plastic Deformation of Polycrystalline Aluminum by Laser Scanning Microscope [PDF]

open access: yes, 2001
Free surface of polycrystalline metal becomes roughened after plastic deformation. The surface roughening is closely related to the inhomogeneity of polycrystalline metals, that is, to the inhomogeneous plastic deformation of respective grains.
Abe, Takeji   +3 more
core   +1 more source

Towards a PS-InSAR Based Prediction Model for Building Collapse: Spatiotemporal Patterns of Vertical Surface Motion in Collapsed Building Areas—Case Study of Alexandria, Egypt

open access: yesRemote Sensing, 2020
Buildings are vulnerable to collapse incidents. We adopt a workflow to detect unusual vertical surface motions before building collapses based on PS-InSAR time series analysis and spatiotemporal data mining techniques. Sentinel-1 ascending and descending
Bahaa Mohamadi, Timo Balz, Ali Younes
doaj   +1 more source

Retrieving Surface Deformation of Mining Areas Using ZY-3 Stereo Imagery and DSMs

open access: yesRemote Sensing, 2023
Measuring surface deformation is crucial for a better understanding of spatial-temporal evolution and the mechanism of mining-induced deformation, thus effectively assessing the mining-related geohazards, such as landslides or damage to surface ...
Wenmin Hu   +4 more
doaj   +1 more source

Relationship between ground levelling measurements and radar satellite interferometric estimates of bog breathing in ombrotrophic northern bogs [PDF]

open access: yesMires and Peat, 2023
Understanding the seasonal oscillation of peatland surface height initiated by changes in water table level (known as ‘bog breathing’) is key to improving spatial models of the water balance of bogs and their greenhouse gas exchanges with the atmosphere.
Tauri Tampuu   +4 more
doaj   +1 more source

Object-Based Analysis Using Unmanned Aerial Vehicles (UAVs) for Site-Specific Landslide Assessment

open access: yesRemote Sensing, 2020
The increased development of computer vision technology combined with the increased availability of innovative platforms with ultra-high-resolution sensors, has generated new opportunities and fields for investigation in the engineering geology domain in
Efstratios Karantanellis   +3 more
doaj   +1 more source

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