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Surfaces From Deformation of Parameters

open access: yesGeometry, Integrability and Quantization, 2016
We construct surfaces from modified Korteweg-de Vries (mKdV) and sine-Gordon (SG) soliton solutions by the use of parametric deforma- tions. For each case there are two types of deformations. The first one gives surfaces on spheres and the second one gives highly complicated surfaces in three dimensional Euclidean space (R 3 ).
Tek, Suleyman, Gurses, Metin
openaire   +3 more sources

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

Aerial SfM–MVS Visualization of Surface Deformation along Folds during the 2024 Noto Peninsula Earthquake (Mw7.5)

open access: yesRemote Sensing
This study aimed to map and analyze the spatial pattern of the surface deformation associated with the 2024 Noto Peninsula earthquake (Mw7.5) using structure-from-motion/multi-view-stereo (SfM–MVS), an advanced photogrammetric technique. The analysis was
Kazuki Yoshida   +4 more
doaj   +1 more source

Deformations of weierstra� elliptic surfaces

open access: yesMathematische Annalen, 1988
Let \(f: X\to C\) be a Weierstraß elliptic surface, that is an elliptic surface with a section and with at most rational double points as singularities, whose fibers over the nonsingular curve C of genus \(g\) are all irreducible. The base field is algebraically closed and has characteristic different from two or three.
openaire   +1 more source

The Influence of Metro Tunnel Construction Parameters on the Settlement of Surrounding Buildings

open access: yesApplied Sciences
The construction of tunnels in conditions of dense urban development affects buildings, structures, and engineering communications located at the surface.
Armen Z. Ter-Martirosyan   +2 more
doaj   +1 more source

Active–Passive Remote Sensing Identification of Underground Coal Fire Zones With Joint Constraints of Temperature and Surface Deformation Time Series

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Coal fire is a geological disaster that causes resource waste and environmental pollution globally. Accurate identification of the spatial location of coal fires is critical for effective coal fire governance.
Yu Chen   +10 more
doaj   +1 more source

Data on Time-series Observation of Ground Subsidence in South Korea Using Sentinel-1 SAR Observations [PDF]

open access: yesGeo Data
Ground subsidence is a phenomenon where surface materials sink due to a combination of natural and anthropogenic factors. South Korea has experienced human casualties and economic losses due to ground subsidence, such as sinkholes.
Chanuk Lee   +7 more
doaj   +1 more source

A Deformable Surface Model for Vascular Segmentation [PDF]

open access: yes, 2009
Inspired by the motion of a solid surface under liquid pressure, this paper proposes a novel deformable surface model to segment blood vessels in medical images. In the proposed model, the segmented region and the background region are respectively considered as liquid and an elastic solid.
Max W. K. Law, Albert C. S. Chung
openaire   +2 more sources

PSInSAR and DInSAR methodology comparison and their applicability in the field of surface deformations – A case of NW Slovenia

open access: yesGeologija, 2007
In the recent years radar interferometry (InSAR) has become an important tool in various studies. It can be used to produce accurate digital elevation models and observe small surface displacements.
Krištof Oštir, Marko Komac
doaj  

Wrinkling of fluid deformable surfaces

open access: yesJournal of The Royal Society Interface
Wrinkling instabilities of thin elastic sheets can be used to generate periodic structures over a wide range of length scales. Viscosity of the thin elastic sheet or its surrounding medium has been shown to be responsible for dynamic processes. We here consider wrinkling of fluid deformable surfaces.
Veit Krause, Axel Voigt
openaire   +3 more sources

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