Federal Center for Technological Education of Minas Gerais

Influence of Steel Fiber Distribution on the Mechanical Performance of SFRC

Abstract This study investigated the flexural behavior of steel fiber-reinforced concrete (SFRC) with a nonuniform fiber distribution using a layered casting approach. Specimens composed of a fiber-reinforced bottom layer and a conventional concrete top layer (layered SFRC, LSFRC...

Linking DC transport properties and entanglement negativity in non-Hermitian superlattices

Abstract We explore how non-Hermitian effects including gain–loss imbalance, asymmetric hopping, and complex potentials in one-dimensional superlattices influence both electrical transport properties and quantum correlations. Focusing on a multiband tetramerized superlattice, we...

A Proof-of-Concept Use of Unmanned Aerial Vehicle for Autonomous Person Detection and Tracking in Solar Farms

Unmanned Aerial Vehicle (UAV) technology has rapidly advanced, enabling the execution of increasingly complex autonomous tasks. This work presents a proof-of-concept autonomous surveillance framework utilizing a low-cost UAV for indoor monitoring as an initial step toward the sur...

Mechanical and Structural Performance Evaluation of Cement-Matrix Composites Nano-Reinforced with Expanded Graphite

Abstract This study investigates the mechanical and structural performance of cement-matrix composites reinforced with expanded graphite (EG) at dosages of 0, 0.25, and 0.75 wt% of cement. The physical and chemical properties of the fine aggregates were first characterized to ens...

Effects of the symmetry energy slope on the exotic content of the neutron stars

Abstract By varying the symmetry energy slope ( L ), I investigate how the exotic content within the interiors of neutron stars changes and how it affects both macroscopic and microscopic quantities. Using two different parametrizations (L3 $$\omega \rho $$ ω ρ and BigApple), and...

Effect of the area on the performance of low impact development practices placed at catchment-scale under long-term simulation

Abstract Previous studies highlighted the effectiveness of Low Impact Development (LID) practices in reducing urban surface runoff, but their long-term performance at different implementation areas remains unclear. This study addresses this gap by simulating surface runoff reduct...

Hybrid flax/carbon bonded composite patches for strengthening of steel plates: layup and adhesive effect

Adhesive bonding of Fiber-Reinforced Polymer (FRP) patches is increasingly used to strengthen steel structures. Considering that carbon FRP (CFRP) and epoxy adhesives are the primary materials in industrial applications, this study explores the feasibility of hybridizing CFRPs wi...