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1841
Macro/Microtesting and Damage and Degradation of Sandstones under Dry-Wet Cycles
Published 2016-01-01“…In terms of the degradation of mechanical parameters of rock mass in the hydrofluctuation belt of a reservoir bank slope arising from rainfall and the reservoir level fluctuation, the moderately weathered sandstone in a side slope of the Three Gorges Reservoir Region is selected as a research object to carry out “drying-saturation-drying” tests for disks with two thicknesses (h=25 mm, h=50 mm) in different cycles; a spiral CT machine, an ultrasonic velocity meter, and a light Schmidt hammer are utilzed to conduct nondestructive testing on dry-wet cycles; through the Brazilian splitting test, the uniaxial tensile strength of “dry” and “saturated” sandstones under different dry-wet cycles is obtained. …”
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1842
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1843
Related Rule Study of Subcritical Crack Growth and Threshold Values in Transversely Isotropic Slates
Published 2020-01-01“…The test results would provide the basis for studying seepage and time-dependency of rock engineering stability.…”
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1844
Experimental Investigation of the Use of Expansive Materials to Increase Permeability in Coal Seams through Expansive Fracturing
Published 2020-01-01“…Based on these results, it is feasible that hydration reactions of expansive materials could increase both gas drainage and permeability in coal seams, thus reducing the risk of rock burst around boreholes in coal seams.…”
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1845
Effects of Interface Damage Resulting from the Separation of Layered Strata on Bolt Anchoring Systems
Published 2016-01-01“…The results show that the support strength of a bolt is independent of the separation location if the resin-rock interface is intact. The opposite is the case if the separation width between the neighboring strata exceeds the ultimate critical value, which induces damage along the interface. …”
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1846
Synthesis and Properties of a Reinforcing Dust-Cementing Material for Thin Spray-On Liners in Mine Roadways
Published 2019-01-01“…This new material can not only reinforce the surrounding rock of the roadway but also cement the dust in the airflow. …”
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1847
P2X7 Receptor Function in Bone-Related Cancer
Published 2012-01-01“…Evidence that P2X7 triggers NFATc1, PI3K/Akt, ROCK, and VEGF pathways in osteoblasts promoting either primary tumor development or osteoblastic lesions is also reported. …”
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1848
Analysis of Strata Behavior Process Characteristics of Gob-Side Entry Retaining with Roof Cutting and Pressure Releasing Based on Composite Roof Structure
Published 2019-01-01“…In order to explore the characteristics of rock pressure distribution with roof cutting and pressure releasing under different composite roof structures and optimize the support design of entry retaining, the mechanical analysis and numerical simulation are used to analyze the structure characteristics of composite roof and the effect of roof cutting under composite roof in this paper. …”
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1849
The Assessment of Health Risk from Heavy Metals with Water Indices for Irrigation and the Portability of Munzur Stream: A Case Study of the Ovacık Area (Ramsar Site), Türkiye
Published 2023-03-01“…The sources of pollution in this area include the rock types of the basin, soil erosion, domestic waste water discharge and agricultural flow of inorganic fertilisers.…”
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1850
THE EFFECT OF ECOLOGICAL FACTORS ON GROWTH OF Sterculia foetida L. IN BUON DON AND EA SUP DISTRICTS, DAK LAK PROVINCE
Published 2022-10-01“…These include topography (slope) and soil characteristics (clay ratio, depth of soil layer, surface and subsurface rock concentrations, and agglomeration ratio). The ecological factors were evaluated by multivariable regression analysis of growth data from 31 experimental plots, 16 in Buon Don district and 15 in Ea Sup district. …”
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1851
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1852
Astor Piazzolla’s compositional and interpretive styling of his Tango Adiós Nonino across four decades of his career – insights into the emergence of Nuevo Tango
Published 2025-12-01“…Piazzolla’s style and the emergence of Nuevo Tango owes a great deal to his open collaborations with musicians of different backgrounds, approaching tango from classical, jazz, and even rock music perspectives. Finally, the potential for further comparative analyses of musical pieces by Astor Piazzolla and other musicians is explored.…”
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1853
Effect Of Open-Pit Blasting Vibrations on a Hanging-Wall Slope: A Case Study of the Beizhan Iron Mine in China
Published 2022-01-01“…With the increase in the depth of large-scale open-pit mining, many mines have to face problems such as what is the effect of open-pit blasting on the rock slope and how to ensure the stability of a high-steep slope. …”
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1854
A New Theoretical View of Rockburst and Its Engineering Application
Published 2018-01-01“…Traditionally, rockburst is considered as a dynamic phenomenon of sudden destruction of coal/rock mass. In this study, rockburst is treated as an event process rather than a phenomenon. …”
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1855
Geochemistry, provenance, and tectonic setting of Paleoproterozoic metasedimentary and metavolcanic units of the Estonian Alutaguse region, eastern Fennoscandia
Published 2025-02-01“…Geochemical analyses utilized both historical and new whole-rock geochemical data. Weathering indices indicated their applicability for provenance studies and tectonic setting analyses. …”
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1856
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1857
Laboratory Measurement and Interpretation of the Changes of Physical Properties after Heat Treatment in Tight Porous Media
Published 2015-01-01“…Permeability begins to increase dramatically if treatment temperature exceeds the threshold value of thermal fracturing, which is 600~700°C, 500~600°C, 300~500°C, and 300~400°C for shale, mudstone, tight sandstone, and tight carbonate rock, respectively. Comprehensive analyses indicate that the mechanisms of heat treatment on tight porous media include evaporation and dehydration of water, change of mineral structure, generation of microfracture, and network connectivity. …”
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1858
Radial and Sigmoid Basis Function Neural Networks in Wireless Sensor Routing Topology Control in Underground Mine Rescue Operation Based on Particle Swarm Optimization
Published 2013-09-01“…Using Matlab, the optimised vectors with high survival rate and fault tolerant, based on rock type, were generated as inputs for the neural networks. …”
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1859
Assessment of variations in shear strain energy induced by fault coseismic slip in deep longwall mining
Published 2025-01-01“…This finding emphasizes the need to integrate fault coseismic slip dynamics into the triggering factors of rock (coal) bursts, thus broadening the theoretical foundation for addressing geological hazards in deep mining operations. …”
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1860
Influence of Hole Arrangement on the Section of Cavity Formed by Cutting Blast
Published 2021-01-01“…The research results show that with the increase of the hole diameter, the peak compressive stress of rock surrounding the empty hole gradually decreases, and the peak tensile stress gradually increases, which is consistent with the calculation results; when the hole diameter is 10 cm, the two first blast holes are arranged horizontally and 30 cm from the empty hole, two second blast holes are arranged vertically and 40 cm away from the empty hole, and the four third blast holes are arranged at a horizontal distance of 45 cm and a vertical distance of 45 cm from the empty hole; the contour area in numerical simulation is the maximum. …”
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