ABSTRACT This article describes the finite element analysis of concrete columns with a hollow square reinforced which restricted Carbon-Fiber-Reinforced polymer (CFRP) tube. In this study, about sixteen core were investigated. These classified into four sets. The set number one was reference involved unconfined traditional steel helices and longitudinal bars. 2nd category have similar configura...

Abstract Local gyrokinetic simulations use a field-aligned domain that twists due to the magnetic shear of background equilibrium. However, if is strong and/or long, twist can become so extreme it fails properly resolve turbulence. In this work, we derive and implement ‘non-twisting flux tube,’ local simulation remains rectangular at all parallel locations. Convergence runtime tests indicate ca...

Centrioles are microtubule-based cylindrical structures that exhibit 9-fold symmetry and facilitate the organization of centrosomes, flagella, and cilia [1]. Abnormalities in centrosome structure and number occur in many cancers [1, 2]. Despite its importance, very little is known about centriole biogenesis. Recent studies in C. elegans have highlighted a group of molecules necessary for centri...

INTRODUCTION The Montgomery silicone tracheal T-tube (Safe-TTube) has gained a role in laryngeal and tracheal reconstruction and revision by providing patients a longterm, indwelling stent that allows voice production and swallowing. Montgomery designed the tracheal T-tube in 1968.l The T-tube is made of silicone and therefore relatively inert and resistant to tissue reaction.2 It can be used f...

Thin-walled hollow shapes are of great interest in many industries with weight constraints due to their availability, low price, and strength ratio. However, they also prone localized bending collapse, which can be used as an energy absorption mechanism during deformation. Up until now, industrial applications have relied on numerical simulations, non-standardized tests, a handful theories addr...

Absorption of CO2 from a gas mixture containing CO2 and nitrogen by water-based CNT nanofluids in gas–liquid hollow fiber membrane contactor was modeled and solved using COMSOL Multiphysics 5.4. The model assumed partial wetting of the membrane, along with diffusion in the axial and radial directions. In addition, Brownian motion and grazing effects were both considered in the model. The main c...