Zobrazeno 1 - 10
of 235
pro vyhledávání: '"Rafael Timóteo De Sousa"'
Autor:
Guilherme Fay Vergara, Pedro Giacomelli, André Luiz Marques Serrano, Fábio Lúcio Lopes de Mendonça, Gabriel Arquelau Pimenta Rodrigues, Guilherme Dantas Bispo, Vinícius Pereira Gonçalves, Robson de Oliveira Albuquerque, Rafael Timóteo de Sousa Júnior
Publikováno v:
Computers, Vol 13, Iss 7, p 180 (2024)
This article presents an innovative approach to video steganography called Stego-STFAN, as by using a cheap model process to use the temporal and spatial domains together, they end up presenting fine adjustments in each frame, the Stego-STFAN had a P
Externí odkaz:
https://doaj.org/article/a405d65b207d46098035fb2afa31b4c5
Autor:
Francisco Lopes de Caldas Filho, Samuel Carlos Meneses Soares, Elder Oroski, Robson de Oliveira Albuquerque, Rafael Zerbini Alves da Mata, Fábio Lúcio Lopes de Mendonça, Rafael Timóteo de Sousa Júnior
Publikováno v:
Sensors, Vol 23, Iss 14, p 6305 (2023)
The Internet of Things (IoT) introduces significant security vulnerabilities, raising concerns about cyber-attacks. Attackers exploit these vulnerabilities to launch distributed denial-of-service (DDoS) attacks, compromising availability and causing
Externí odkaz:
https://doaj.org/article/f0237c47e6d242619bcaed63492ac198
Autor:
Pedro Otávio Londe dos Santos, Ana Paula Bernardi da Silva, João Souza Neto, Rafael Timóteo de Sousa Júnior
Publikováno v:
REAd, Vol 26, Iss 2, Pp 463-494 (2020)
RESUMO Trata-se de uma proposta de um modelo de avaliação da maturidade em governança e gestão de Tecnologia da Informação e Comunicação (TIC) para os órgãos da Administração Pública Federal (APF) pertencentes ao Sistema de Administraç
Externí odkaz:
https://doaj.org/article/9b294431482d469482375fb9629c54f2
Autor:
Edna Dias Canedo, Ana Paula Morais do Vale, Rogério Machado Gravina, Alessandra de Vasconcelos Sales, Bruno J. G. Praciano, Vinicius Eloy dos Reis, Fábio Lúcio Lopes Mendonça, Rafael Timóteo de Sousa Júnior
Publikováno v:
Information, Vol 13, Iss 5, p 231 (2022)
The process of identifying and managing Information and Communication Technology (ICT) risks has become a concern and a challenge for public and private organizations. In this context, risk management methodologies within the Brazilian Federal Public
Externí odkaz:
https://doaj.org/article/c729250075ba47e1bdcac1c063bd5371
Autor:
Leonardo Pereira Dias, Alex Ferreira Dos Santos, Helder Alves Pereira, Raul Camelo De Andrade Almeida, William Ferreira Giozza, Rafael Timóteo De Sousa, Karcius Day Rosario Assis
Publikováno v:
Photonics, Vol 9, Iss 5, p 278 (2022)
Passive optical networks (PONs) are an important and interesting technology for broadband access as a result of the growing demand for bandwidth over the past 10 years. An arduous and complex step in the design of such networks involves determining t
Externí odkaz:
https://doaj.org/article/7e1764f8fd7b4667b9e567d80842a1d6
Autor:
Igo Tôrres Lima, Josiel da Silva Crispim, Olimpio Pereira de Sá Neto, Rafael Timóteo de Sousa Júnior, Luiz Antônio Ribeiro Júnior, Demétrio Antonio da Silva Filho
Publikováno v:
Molecules, Vol 27, Iss 7, p 2138 (2022)
Organic compounds have been employed in developing new green energy solutions with good cost-efficiency compromise, such as photovoltaics. The light-harvesting process in these applications is a crucial feature that still needs improvements. Here, we
Externí odkaz:
https://doaj.org/article/4eba4a96c0da4ad081afe8f43925b98a
Autor:
Leonardo Evaristo de Sousa, Demétrio Antônio da Silva Filho, Rafael Timóteo de Sousa, Pedro Henrique de Oliveira Neto
Publikováno v:
Scientific Reports, Vol 8, Iss 1, Pp 1-7 (2018)
Abstract Organic nanofibers have found various applications in optoelectronic devices. In such devices, exciton diffusion is a major aspect concerning their efficiency. In the case of singlet excitons, Förster transfer is the mechanism responsible f
Externí odkaz:
https://doaj.org/article/621928e513944bc7b13734a6b3f25cc1
Autor:
Priscila Morais Argôlo Bonfim Estrela, Robson de Oliveira Albuquerque, Dino Macedo Amaral, William Ferreira Giozza, Rafael Timóteo de Sousa Júnior
Publikováno v:
Sensors, Vol 21, Iss 12, p 4212 (2021)
As smart devices have become commonly used to access internet banking applications, these devices constitute appealing targets for fraudsters. Impersonation attacks are an essential concern for internet banking providers. Therefore, user authenticati
Externí odkaz:
https://doaj.org/article/cdd85cd9d7c24a768fd268f1403ed56e
Autor:
Alexandre Pinheiro, Edna Dias Canedo, Robson de Oliveira Albuquerque, Rafael Timóteo de Sousa Júnior
Publikováno v:
Sensors, Vol 21, Iss 13, p 4440 (2021)
The management practicality and economy offered by the various technological solutions based on cloud computing have attracted many organizations, which have chosen to migrate services to the cloud, despite the numerous challenges arising from this m
Externí odkaz:
https://doaj.org/article/06682fcab2924c909455b7cfe54838e7
Autor:
João Paulo Abreu Maranhão, João Paulo Carvalho Lustosa da Costa, Edison Pignaton de Freitas, Elnaz Javidi, Rafael Timóteo de Sousa Júnior
Publikováno v:
Sensors, Vol 20, Iss 20, p 5845 (2020)
In recent years, advanced threats against Cyber–Physical Systems (CPSs), such as Distributed Denial of Service (DDoS) attacks, are increasing. Furthermore, traditional machine learning-based intrusion detection systems (IDSs) often fail to efficien
Externí odkaz:
https://doaj.org/article/aaac401cf3d74a54b4097733dd0678cd