Focused fluid flow is common in sedimentary basins worldwide, where structures often penetrate through sandy reservoir rocks, and clay-rich caprocks. To better understand the mechanisms forming such structures, impacts of viscoelastic deformation strongly nonlinear porosity-dependent permeability materials are assessed from an experimental numerical modeling perspective. The methods to measure ...

Abstract Free surface-assisted TBM disc cutter for rock breaking is an important direction the optimizing of structure. To study influence free surface on excavation, surfaces limited-width opening and unlimited-width were presented, six different combinations proposed. The penetration tests sandstone with carried out. results showed that mass adjacent to fell off after sample fracture. caused ...

CURRENT SCIENCE, VOL. 106, NO. 5, 10 MARCH 2014 655 *A report on Resonance – summer school in neuroscience held at the Indian Institute of Technology (IIT) Delhi from 26 June to 6 July 2013, an allied effort by Massachusetts Institute of Technology, USA, Harvard University, USA and IIT Delhi. continuity of the traditions in the Indian context. Several rock arts are probably hidden in remote pla...

Recently, we have shown that Rho and Rho-activated kinase (ROCK) may become activated by high-millimolar KCl, which had previously been widely assumed to act solely through opening of voltage-dependent Ca(2+) channels. In this study, we explored in more detail the relationship between membrane depolarization, Ca(2+) currents, and activation of Rho/ROCK in bovine tracheal smooth muscle. Ca(2+) c...

the uniaxial compressive strength (ucs) of intact rocks is an important geotechnical parameter required for designing geotechnical and mining engineering projects. obtaining accurate estimates of the rock mass ucs parameter throughout a 3d geological model of the deposit is vital for determining optimum rock slope stability, designing new exploratory and blast boreholes, mine planning, optimizi...

In order to fully delineate the interactions of microorganisms with geological substrates, unequivocal identification of intact microbial cells within geologic samples is required without the disruption of either the rock texture or the relationship of the microorganisms to the mineral fabric. To achieve this objective we developed a protocol that enables the visualization of intact microbial c...