Reinforced Concrete (RC) deep beams perform better structurally when steel fibers are added, as this reduces the need for web reinforcements, boosts shear strength, and helps to bridge cracks. The current ACI 318-19 code does not include predicting strength models account added in Steel Fibers (SFRC) without stirrups; therefore, structural engineers less motivated use them. To fill gap, databas...

Recent experimental progress on the determination of the parton distribution functions in the proton from the H1 and ZEUS Collaborations at HERA is reported. New QCD fits yielding improved determinations of the parton distribution functions in the proton are described. On one hand, precise measurements of neutral-current deep inelastic scattering at low Q2 have allowed an improved determination...

This study proposes a novel artificial intelligence (AI) model to estimate the shear strength of reinforcedconcrete (RC) deep beams. The proposed evolutionary multivariate adaptive regression splines (EMARS) model is a hybrid of multivariate adaptive regression splines (MARS) and artificial bee colony (ABC). In EMARS, MARS addresses learning and curve fitting and ABC implements optimization to ...

Surveys of galaxies in the 21-cm line of neutral hydrogen are important parts of the science case for the Five-hundred-metre Aperture Spherical Telescope (FAST) and the Australian SKA Pathfinder (ASKAP). The FAST strawman design with 19 beams and low system temperature allows a “survey speed” comparable to that of ASKAP. The combination of the two telescopes will allow a shallow all-sky survey ...

Numerical simulation is used to explore the behavior of concrete beams of different sizes and different notch lengths, loaded in three-point bending. The entire range of notch depth is studied. One limit case is type 1 fracture, which occurs when the notch depth is zero and the crack initiates from a smooth surface (this is the case of the modulus of rupture test). Another limit is type 2 fract...