[1] We report on laboratory experiments examining the frictional and hydrologic properties of fault gouge and wall rock along a borehole transect that crosses a major out-of-sequence thrust splay fault within the Nankai accretionary complex. At 25 MPa effective normal stress, the fault zone material is frictionally weak (m 0.44) and exhibits low permeability after shearing (k < 5.5 10 20 m). Fa...

BACKGROUND We have developed a new surgical instrument, called the pulsed electron avalanche knife (PEAK; Carl Zeiss Meditec, Jena, Germany), for precise, "cold," and tractionless dissection of tissue in liquid media. OBJECTIVE To evaluate the 3-dimensional damage zone induced by the PEAK compared with 2 other standard intraocular surgical instruments, diathermy and retinal scissors. METHOD...

10 Domestic wells in North America and elsewhere are typically constructed at relatively shallow 11 depths and with the sand or gravel pack extending far above the intake screen of the well (shallow 12 well seal). The source areas of these domestic wells and the effect of an extended gravel pack on the 13 source area are typically unknown and few resources exist for estimating these. In this pa...

Graphene membranes have the potential to exceed the permeance and selectivity limits of conventional gas separation membranes. Realizing this potential in practical systems relies on overcoming numerous scalability challenges, such as isolating or sealing permeable defects in macroscopic areas of graphene that can compromise performance and developing methods to create high densities of selecti...

The Xihu sag has two main oil−gas fields: Huagang Gas Field and Pinghu Oil Field. formation is the reservoir of in Central Tectonic Zone, while Western Slope Zone. In this paper, which mainly focusses on formation, we conducted gas-driven water displacement–magnetic resonance imaging (GWD-MRI) experiments to simulate charging characteristics sandstone migration layer, centrifugal magnetic (Cen-...

To scrutinize the treatment of hybrid nanomaterial through a permeable tank, CVFEM was examined. The external magnetic force affects region and relevant item has been added in momentum equations. Buoyancy porous source terms act same direction boost fluid to move faster. Induced MHD not included equations single-phase techniques for simulation working were implemented. analyze efficiency system...

Abstract Geological, hydrogeological and geophysical investigations were carried out in Yala Area (SE Nigeria) to delineate potential zones for future groundwater development. The area is underlain by Turonian fractured shale rock intruded basaltic rocks saline water. High lineament density (&gt; 30 km ?1 ) recorded the north suggest high permeable zone, compared with low (&lt; 10 south east. G...

High strength concrete is usually cast with low water-to-binder ratio (w/b) in order to produce a compact microstructure high and durability. Autoclave curing can accelerate cement hydration pozzolanic reactions further modify of pastes (such as decreasing the Ca/Si forming crystallized calcium silicate hydrate). The present paper evaluates effect w/b ratio, range 0.20 – 0.40, on compressive st...