Jorge Kennety Silva Formiga

Altitude and directional effects on debris lifetimes in low Earth orbit

Jorge Kennety Silva Formiga, Ricardo O. Silva, Denílson Paulo Souza dos Santos, Rodolpho Vilhena de Moraes

The early post-fragmentation evolution of low-Earth-orbit debris is investigated using a reduced planar dynamical model including the Earth’s central gravitational field, the J 2 zonal harmonic, and altitude-dependent atmospheric drag. Fragmentation is represented by an impulsive velocity perturbation whose direction is described …

br (code pays fourni par la source)

A hybrid reaction-diffusion and mechanical stimulus model for mandibular bone remodeling under chewing and vibratory loading

Jorge Kennety Silva Formiga, Ísis Preste Formiga, Vanessa Fernandes Pereira, Adriano Bressane

Abstract Bone remodeling in the mandible is governed by the interplay between local mechanical loads, cellular population dynamics, and overload-induced resorption. While mastication is the primary physiological driver of mandibular adaptation, low-magnitude vibration has emerged as a promising noninvasive adjunct to enhance …

br (code pays fourni par la source)

MODELAGEM MULTIDISCIPLINAR DA PROBABILIDADE DE COLISÃO ORBITAL:INTEGRAÇÃO ENTRE DINÂMICA E ESTATÍSTICA

Denilson Paulo Souza dos Santos, Dimitrie Hristov Sobrinho, Jorge Kennety Silva Formiga

O crescimento acelerado da população de objetos em órbita terrestre baixa (LEO) intensifica a necessidade de métricas robustas para avaliação do risco de colisão. Métodos tradicionais, como as formulações gaussianas de Foster e a extensão analítica de Akella e Alfriend, apresentam elevada …

br (code pays fourni par la source)

MODELAGEM MULTIDISCIPLINAR DA PROBABILIDADE DE COLISÃO ORBITAL:INTEGRAÇÃO ENTRE DINÂMICA E ESTATÍSTICA

Dimitrie Hristov Sobrinho, Jorge Kennety Silva Formiga, Denilson Paulo Souza dos Santos

O crescimento acelerado da população de objetos em órbita terrestre baixa (LEO) intensifica a necessidade de métricas robustas para avaliação do risco de colisão. Métodos tradicionais, como as formulações gaussianas de Foster e a extensão analítica de Akella e Alfriend, apresentam elevada …

br (code pays fourni par la source)

Hybrid Dynamic-Statistical Modeling for Orbital Collision Probability

Dimitrie Hristov Sobrinho, Jorge Kennety Silva Formiga, Denilson Paulo Souza dos Santos

br (code pays fourni par la source)

Physics-based feature engineering for machine learning in terminal velocity prediction of fractal aggregates formed during flocculation

Daniel H.R. Toda, Adriano Bressane, Rogério Galante Negri, Jorge Kennety Silva Formiga et autres

br, gb (code pays fourni par la source)

Physics-informed feature engineering with fuzzy symbolic regression for predicting settling velocity in water treatment

Adriano Bressane, Daniel H.R. Toda, Rogério Galante Negri, Jorge Kennety Silva Formiga et autres

br, gb (code pays fourni par la source)

NEURAL NETWORKS: OVERVIEW AND SPACE DEBRIS APPLICATION

Giovanna Mendes Cruz Alves, Jorge Kennety Silva Formiga, Lucas Daniel Del Rosso Calache, Denílson Paulo Souza dos Santos

Challenges in Phosphorus Removal from Eutrophic Waters Using Adsorption: A Laboratory Comparison of Commercial and Moringa-Derived Adsorbents

Daniela Resende Duque, Adriano Gonçalves dos Reis, Jorge Kennety Silva Formiga, Suzelei Rodgher

To reduce the concentration of phosphorus, the main nutrient responsible for eutrophication, two adsorbents were tested: a commercial activated carbon and one produced from the pods of Moringa oleifera. A concentrated phosphorus solution representative of eutrophic ecosystems was produced at 0.210 mg·L−1 …

br (code pays fourni par la source)

Parametric Linear Stability Analysis of Tethered System Dynamics in Keplerian Orbits

Denílson Paulo Souza dos Santos, José Soares Ferreira Neto, Jorge Kennety Silva Formiga

The objective of this study is to analyze the dynamics of a tether system comprised of two point masses interconnected by a cable (Space Tethers), orbiting a Newtonian center of attraction in a Keplerian orbit without external forces. Through reductions in the …

br (code pays fourni par la source)

Impactos da Reentrada de Detritos Espaciais na Terra

Guilherme Russo de Freitas Lessa, Jorge Kennety Silva Formiga

Intelligent nature-based solutions in the 1st smart sustainable Brazilian City: Insights and lessons learned

Adriano Bressane, Anna Isabel Silva Loureiro, Líliam César de Castro Medeiros, Rodrigo Braga Moruzzi et autres

As urbanization intensifies worldwide, the need for sustainable urban development becomes increasingly critical. This study introduces a novel approach, the Intelligent Nature-based Solutions (INbS), which encompasses the integration of nature-based approaches with intelligent systems. Drawing upon empirical context within the framework of …

br (code pays fourni par la source)