Results 11 to 20 of about 159,258 (313)

Shape Dynamics of the TT¯ Deformation [PDF]

open access: yesSymmetry, 2021
I will show how the flow triggered by deforming two-dimensional conformal field theories on a torus by the TT¯ operator is identical to the evolution generated by the (radial) quantum Shape Hamiltonian in 2 + 1 dimensions. I will discuss how the gauge invariances of the Shape Dynamics, i.e., volume-preserving conformal invariance and diffeomorphism ...
openaire   +1 more source

Dynamic Behavior of a Novel High-Strength and Ductile Near-α Titanium Ti-Al-Mo-Zr-Fe-B Alloy

open access: yesCrystals, 2022
In this study, the dynamic compression properties of a new high-strength (>1000 MPa) and ductile (>15%) near-α titanium Ti-6Al-1Mo-2Zr-0.55Fe-0.1B alloy were investigated at high strain rates of 1620 s−1~2820 s−1 by a split Hopkinson pressure bar (SHPB).
Chi Yan   +5 more
doaj   +1 more source

Dynamic Deformation of Pendant Drops on the Edge of High-Voltage Bushing Sheds Under Extreme Rainfall

open access: yesIEEE Access, 2020
Flashover accidents on high-voltage bushings frequently occur under extreme rainfall, which is generally attributed to the bridging of adjacent sheds by pendant drops, a result of the dynamic deformation of pendant drops.
Lin Yang   +6 more
doaj   +1 more source

A Method of Structural Vibration Deformation Monitoring Based on FBG Strainmeter and Accelerometer Array

open access: yesIEEE Access, 2023
The monitoring of displacement and strain distribution of vibrating structures is very important for maintaining structural safety. In this paper, a monitoring method of structural vibration deformation based on Fiber Bragg Grating (FBG) strainmeter ...
Ziyue Zhao   +3 more
doaj   +1 more source

Classical dynamics in deformed spaces [PDF]

open access: yesJournal of Physics A: Mathematical and General, 2003
We consider a 3-parametric linear deformation of the Poisson brackets in classical mechanics. This deformation can be thought of as the classical limit of dynamics in so-called "quantized spaces". Our main result is a description of the motion of a particle in the corresponding Kepler-Coulomb problem.
Leznov, A., Mostovoy, J.
openaire   +2 more sources

Changes in Mechanical Properties of Ultrahigh Strength Nanostructured Steel Resulting from Repeated High Strain Rate Deformation [PDF]

open access: yesProblemy Mechatroniki, 2019
The paper contains results of investigation of nanostructured bainitic steel subjected to repeated high-strain-rate deformations using split Hopkinson pressure bar method and uniaxial compression of cylindrical specimens in Gleeble simulator.
Jarosław MARCISZ   +2 more
doaj   +1 more source

Dynamic recrystallization and deformation mechanisms of naturally deformed Carrara Marble: a study on one- and two-phase carbonate rocks [PDF]

open access: yes, 2004
Carrara marble is a greenschist facies metamorphic marble from the Alpi Apuane, Tuscany, Italy. It is widely known for its chemical purity, its homogenous microstructure and isotropic texture (crystallographic preferred orientation).
Oesterling, Nils
core   +1 more source

Determination of the Stability of High-Steep Slopes by Global Navigation Satellite System (GNSS) Real-Time Monitoring in Long Wall Mining

open access: yesApplied Sciences, 2020
Surface movement and deformation induced by underground coal mining causes slopes to collapse. Global Navigation Satellite System (GNSS) real-time monitoring can provide early warnings and prevent disasters.
Xugang Lian   +5 more
doaj   +1 more source

Dynamic behaviors of MICP-treated calcareous sand in cyclic tests

open access: yesYantu gongcheng xuebao, 2018
The calcareous sands from an island of the South China Sea are cemented by the microbially induced calcite precipitation (MICP) method. A series of cyclic tests and SEM tests are carried out to investigate the evolutions of the dynamic strength, dynamic ...
LIU Han-long 1,2,3, XIAO Peng 1,2, XIAO Yang 1,2, WANG Jian-ping 4, CHEN Yu-min 3, CHU Jian 1
doaj   +1 more source

Mineral reaction and deformation in Plagioclase-Olivine composites : an experimental study [PDF]

open access: yes, 2004
Deformation and metamorphism of rocks are fundamentally interrelated but the ways in which processes of reaction and deformation mutually influence each other are still poorly understood in natural rocks.
Ronde, Almar A. de
core   +1 more source

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