Federal Center for Technological Education Celso Suckow da Fonseca

Niobium‐Based Chalcogenides as Emerging Electrode Materials for Rechargeable Batteries

ABSTRACT Niobium (Nb)‐based transition metal chalcogenides (Nb‐TMCs), including NbS 2 , NbSe 2 , and NbTe 2 , have attracted considerable attention as promising two‐dimensional (2D) materials for rechargeable batteries because of their layered crystal structures, high electrical...

Micrographic Evaluation of Water-in-Oil Emulsion Stability up to Critical Electric Field

Abstract Electrostatic demulsification is widely applied in the petroleum industry for the separation of water-in-oil emulsions; however, the relationship between microscopic droplet dynamics and the macroscopic electrical response remains insufficiently understood, particularly...

Evaluation of sulfide stress corrosion cracking resistance of supermartensitic stainless steel UNS S41426: comparison between forged and hot rolled tube

Purpose This research aims to evaluate how manufacturing processes influence stress-corrosion cracking in two supermartensitic stainless steels (SMSSs) classified as UNS S41426. The samples were manufactured by forging and hot rolling process. Design/methodology/approach The micr...

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...

Hygroscopicity and Sorption Isotherms of Acerola Pulp Powder Produced by Foam-Mat Drying

Acerola is a tropical fruit rich in vitamin C and other bioactive compounds, but its high perishability limits storage and distribution. This study evaluated the hygroscopic behavior and storage stability of acerola pulp powder produced by foam-mat drying. The pulp was foamed wit...