For the characteristics of horizontal fractures in shallow low-permeability oil layers after hydraulic fracturing in multilayer reservoirs, horizontal fractures are taken equivalent to an elliptical cylinder with the reservoir thickness using the equivalent permeability model; then, upon the elliptic seepage theory, the seepage field which has led by a vertical well with horizontal fractures is...

Although, experimental studies have reported fracture at the corner of Steel Plate Shear Walls (SPSW), no study has been performed to investigate the crack effect, yet. Therefore, in this paper, the effect of crack at the corner of SPSWs on the seismic behavior of the system was investigated. Two probable cracks, that have been studies at the corner of SPSWs utilizing extended Finite Element me...

A bstract We present a detailed study of new mathematical object in E 6(6) ℝ + generalised geometry called an ‘exceptional complex structure’ (ECS). It is the extension conventional structure to one that includes all degrees freedom M-theory or type IIB supergravity six five dimensions, and as such characterises, part, generic supersymmetric compactifications five-dimensional Minkowkski space. ...

In several mammals only one of the two types of retinal horizontal cell, the axonless A-type, appears to express neurofilaments. Neurofilament immunostaining of rodent retinas reveals a horizontal cell plexus that has previously been interpreted as belonging to A-type cells. Our intracellular Lucifer yellow injections strongly suggest that there are no A-type horizontal cells in rat and gerbil....

Laser Doppler Velocimetry (LDV) has been employed to determine pseudo-turbulence characteristics of the flow field around bubble train forming in non-Newtonian caboxymethylcellulose (CMC) aqueous solution at low gas flow rate condition. The Reynolds stress and turbulent intensity of the liquid were investigated by means of Reynolds time-averaged method. The experimental results show that ax...

the previous studies show that a high percentage of traffic accidents take place in two-lane rural highways and most of which happen at horizontal curves. meanwhile the horizontal alignment is often subject to hard topographic conditions where because of economic aspects designers are forced to design horizontal curves at grades. vertical angle of longitudinal slope reduces the normal force of ...