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Technologies, Volume 11, Issue 4

August 2023 - 31 articles

Cover Story: The integration of satellite technology with cellular mobile networks has evolved as an essential pursuit in achieving global wireless access. The rise of LTE and 5G users prioritizing seamless coverage, especially in remote areas, has propelled the development of direct-to-cellular 5G satellite NTN. This study explores the challenges and feasibility of integrating 5G-6G satellite networks within existing terrestrial and satellite frequency bands. Two approaches are examined: spectrum convergence within terrestrial bands and the utilization of dedicated NTN frequencies. Through a detailed interference analysis, this study sheds light on the compatibility hurdles that stakeholders must address to harness the potential of n255 and n256 bands for future 5G-6G satellite technologies. View this paper
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Articles (31)

  • Systematic Review
  • Open Access
3,024 Views
20 Pages

Tendency on the Application of Drill-Down Analysis in Scientific Studies: A Systematic Review

  • Victor Hugo Silva-Blancas,
  • José Manuel Álvarez-Alvarado,
  • Ana Marcela Herrera-Navarro and
  • Juvenal Rodríguez-Reséndiz

With the fact that new server technologies are coming to market, it is necessary to update or create new methodologies for data analysis and exploitation. Applied methodologies go from decision tree categorization to artificial neural networks (ANN)...

  • Article
  • Open Access
14 Citations
5,885 Views
20 Pages

Image Denoising Using Hybrid Deep Learning Approach and Self-Improved Orca Predation Algorithm

  • Rusul Sabah Jebur,
  • Mohd Hazli Bin Mohamed Zabil,
  • Dalal Abdulmohsin Hammood,
  • Lim Kok Cheng and
  • Ali Al-Naji

Image denoising is a critical task in computer vision aimed at removing unwanted noise from images, which can degrade image quality and affect visual details. This study proposes a novel approach that combines deep hybrid learning with the Self-Impro...

  • Article
  • Open Access
46 Citations
13,924 Views
18 Pages

Challenges of Using the L-Band and S-Band for Direct-to-Cellular Satellite 5G-6G NTN Systems

  • Alexander Pastukh,
  • Valery Tikhvinskiy,
  • Svetlana Dymkova and
  • Oleg Varlamov

This article presents a comprehensive study of the potential utilization of the L-band and S-band frequency ranges for satellite non-terrestrial network (NTN) technologies. This study encompasses an interference analysis in the S-band, investigating...

  • Article
  • Open Access
2 Citations
2,707 Views
20 Pages

Fuzzy Logic System for Classifying Multiple Sclerosis Patients as High, Medium, or Low Responders to Interferon-Beta

  • Edgar Rafael Ponce de Leon-Sanchez,
  • Jorge Domingo Mendiola-Santibañez,
  • Omar Arturo Dominguez-Ramirez,
  • Ana Marcela Herrera-Navarro,
  • Alberto Vazquez-Cervantes,
  • Hugo Jimenez-Hernandez and
  • Horacio Senties-Madrid

Interferon-beta is one of the most widely prescribed disease-modifying therapies for multiple sclerosis patients. However, this treatment is only partially effective, and a significant proportion of patients do not respond to this drug. This paper pr...

  • Article
  • Open Access
3 Citations
3,330 Views
18 Pages

Color fading naturally occurs with time under light illumination. It is triggered by the high photon energy of light. The rate of color fading and darkening depends on the substance, lighting condition, and storage conditions. Color fading is only ob...

  • Article
  • Open Access
44 Citations
8,391 Views
18 Pages

As the manufacturing industry advances towards Industry 5.0, which heavily integrates advanced technologies such as cyber-physical systems, artificial intelligence, and the Internet of Things (IoT), the potential for web-based attacks increases. Cybe...

  • Article
  • Open Access
5 Citations
3,263 Views
23 Pages

Biodegradable Polyhydroxyalkanoates Formed by 3- and 4-Hydroxybutyrate Monomers to Produce Nanomembranes Suitable for Drug Delivery and Cell Culture

  • Tatiana G. Volova,
  • Aleksey V. Demidenko,
  • Anastasiya V. Murueva,
  • Alexey E. Dudaev,
  • Ivan Nemtsev and
  • Ekaterina I. Shishatskaya

Biodegradable polyhydroxyalkanoates, biopolymers of microbiological origin, formed by 3- and 4-hydroxybutyrate monomers P(3HB-co-4HB), were used to obtain nanomembranes loaded with drugs as cell carriers by electrospinning. Resorbable non-woven membr...

  • Communication
  • Open Access
5 Citations
3,422 Views
13 Pages

Furaltadone (FLD) is an antibiotic drug that is widely treated for coccidiosis, intestinal infection, and turkey blackhead. Moreover, excessive use of FLD may have some negative consequences for humans and domestic animals. Therefore, practical, sens...

  • Article
  • Open Access
6 Citations
3,628 Views
18 Pages

The U-Net Family for Epicardial Adipose Tissue Segmentation and Quantification in Low-Dose CT

  • Lu Liu,
  • Runlei Ma,
  • Peter M. A. van Ooijen,
  • Matthijs Oudkerk,
  • Rozemarijn Vliegenthart,
  • Raymond N. J. Veldhuis and
  • Christoph Brune

Epicardial adipose tissue (EAT) is located between the visceral pericardium and myocardium, and EAT volume is correlated with cardiovascular risk. Nowadays, many deep learning-based automated EAT segmentation and quantification methods in the U-net f...

  • Communication
  • Open Access
13 Citations
3,111 Views
14 Pages

We suggest two steps of reducing the amount of data transmitted on Internet of Vehicle networks. The first step shifts the image from a full-color resolution to only an 8-color resolution. The reduction of the color numbers is noticeable; however, th...

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Technologies - ISSN 2227-7080