Abstract The dynamic increase factor (DIF) of the concrete material strength, obtained using a split Hopkinson pressure bar (SHPB), includes structural effects that do not precisely reflect real strain-rate effect concrete. To further clarify rubberised (RC), an experimental investigation regarding compressive response ordinary (NC) and RC with three rubber contents (10%, 20%, 30%) was performe...

Season two of the popular prison drama Orange is the New Black opens in a small concrete cell, no larger than a parking space. The cell is windowless and sparsely furnished; it holds a toilet, a sink and a limp bed. The only distinguishing feature we see is a mural of smeared egg, made by the cell’s resident, the show’s protagonist Piper Chapman. When a correctional officer arrives at this soli...

Waters’ variant of the Boneh-Boyen IBE scheme is attractive because of its efficency, applications, and security attributes, but suffers from a relatively complex proof with poor concrete security. This is due in part to the proof’s “artificial abort” step, which has then been inherited by numerous derivative works. It has often been asked whether this step is necessary. We show that it is not,...

This study examines the behavior of circular concretes externally confined by green sustainable WHBR FRP containing water hyacinth fiber ropes and bio-resin. principally purposes to discover axial stress-strain relationship FRP-confined concrete. A total 10 with a dimension 150×300 mm were cast, strengthened one four layers FRP, tested under compression. The stress deformability observed be inc...

Let Γ̄ be the Picard modular group of an imaginary quadratic number field k and let D be the associated symmetric space. Let Γ ⊂ Γ̄ be a congruence subgroup. We describe a method to compute the integral cohomology of the locally symmetric space Γ\D. The method is implemented for the cases k = Q(i) and k = Q( √ −3), and the cohomology is computed for various Γ.