Results 41 to 50 of about 26,973 (231)

Triaxial Compression Performance Research of Steel Slag Concrete on the Unified Strength Theory

open access: yesApplied Sciences, 2020
To better explore the mechanical properties of steel slag concrete (SSC) under triaxial compression, true triaxial tests were performed on SSC with three replacement ratios (30%, 70%, 100%) by a servo-controlled setup (TAWZ-5000/3000).
Zhiheng Deng   +4 more
doaj   +1 more source

Experimental Study of Strain Rockburst considering Temperature Effect: Status-of-the-Art and Prospect

open access: yesShock and Vibration, 2021
In deep mining and excavation of tunnels with high geothermal, the surrounding rock is not only subjected to high ground stress but also subjected to high temperature.
Lei Xu, Fengqiang Gong
doaj   +1 more source

Experimental study on rockburst fragment characteristic of granite under different loading rates in true triaxial condition

open access: yesFrontiers in Earth Science, 2022
In order to study the effect of loading rate on rockburst, an indoor test of single-face fast unloading-three directions and five-face stress-vertical continuous loading is conducted under different loading rates using a new true-triaxial rockburst test ...
Feiyue Sun   +3 more
doaj   +1 more source

Galaxy Cluster Shapes and Systematic Errors in H0 Measured by the Sunyaev-Zel'dovich Effect [PDF]

open access: yes, 1999
Imaging of the Sunyaev-Zel'dovich (SZ) effect in galaxy clusters combined with cluster plasma x-ray diagnostics can measure the cosmic distance scale to high redshift. Projecting the inverse-Compton scattering and x-ray emission along the cluster line-of-
Birkinshaw M.   +9 more
core   +2 more sources

True triaxial test and failure criterion of coal gangue concrete

open access: yesMeitan xuebao
In view of the pollution caused by the large storage of coal gangue and the shortage of natural aggregate in concrete, using coal gangue as coarse aggregate is a reasonable way to solve the above problems.
Weiping ZHAO   +5 more
doaj   +1 more source

Experimental study of the dynamic mechanical responses and failure characteristics of coal under true triaxial confinements

open access: yesInternational Journal of Mining Science and Technology, 2023
Investigations on the dynamic mechanical properties and failure mechanisms of coal under in-situ stress is essential for the prevention of dynamic disasters in deep coal mines.
Zhanguo Ma   +5 more
doaj   +1 more source

The Dependence of Galaxy Shape on Luminosity and Surface Brightness Profile [PDF]

open access: yes, 2005
For a sample of 96,951 galaxies from the Sloan Digital Sky Survey Data Release 3, we study the distribution of apparent axis ratios as a function of r-band absolute magnitude and surface brightness profile type.
Abramson I. S.   +11 more
core   +3 more sources

Recent Progress on Flexible Multimodal Sensors: Decoupling Strategies, Fabrication and Applications

open access: yesAdvanced Materials, EarlyView.
In this review, we establish a tripartite decoupling framework for flexible multimodal sensors, which elucidates the underlying principles of signal crosstalk and their solutions through material design, structural engineering, and AI algorithms. We also demonstrate its potential applications across environmental monitoring, health monitoring, human ...
Tao Wu   +10 more
wiley   +1 more source

Effect of intermediate principal stress and minimum principal stress unloading stress path and rate on energy evolution of sandstone under true triaxial compression

open access: yesMeitan xuebao
In the process of deep coal mining, the unloading stress path and unloading rate of deep rock are complicated and changeable due to the influence of excavation and unloading.
Zhixi LIU   +3 more
doaj   +1 more source

Unloading Mechanics and Energy Characteristics of Sandstone under Different Intermediate Principal Stress Conditions

open access: yesAdvances in Civil Engineering, 2021
The TRW-3000 true triaxial rock testing machine was used to conduct loading and unloading tests of sandstone under different σ2, and the true triaxial lateral unloading mechanics and energy characteristics of sandstone under different σ2 were studied ...
Yingjie Zhang   +3 more
doaj   +1 more source

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