Instituto Federal Fluminense

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...

Physics-Informed Machine Learning for Fatigue and Fracture Analysis and Prediction: A Scoping Review

Physics-Informed Machine Learning has emerged as a powerful paradigm for fatigue and fracture analysis, combining the data-driven flexibility of neural networks with the consistency of physical laws. This scoping review maps the extent, range, and nature of research on PIML appli...

Exact solution of the Klein–Gordon equation in a Kiselev black hole background

Abstract In this work, we investigate exactly the dynamics of a relativistic spinless particle influenced by a static and uncharged black hole surrounded by a quintessence-like anisotropic fluid or Kiselev black hole. Considering two quintessence-like models as examples, we calcu...

Demystifying the Lean 6.0 concept: integrating Industry 6.0 technologies with lean culture for innovation

Purpose This research paper aims to examine how companies are preparing to adopt Industry 6.0 (I6.0) and Lean Culture by identifying challenges, best practices, and the maturity of their integration with Knowledge Management (KM). It proposes the concept of Lean 6.0, which integr...

Peptidomic Characterizationand Functional Propertiesof Goat and Cow Milk Kefir before and after In Vitro Digestion

Abstract Kefir is a fermented beverage produced from goat or cow milk. This study evaluated the bioactive potential and peptidomic profile of kefirs from both species before and after in vitro digestion. Peptides from undigested, gastric, and intestinal phases were characterized...

From crisis response to everyday work: Exploring resilient capacities in health systems’ governance and frontline operations

Background This scoping review examines health system resilience, shifting the focus to beyond crisis response to include everyday adaptation, governance, and transformative capabilities in universal health systems. Objectives Describe and analyze health system resilience framewo...