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Technologies, Volume 12, Issue 8

2024 August - 22 articles

Cover Story: This paper focuses on optimising implants designed using triply periodic minimal surface structures, specifically employing the gyroid architecture for its balance of mechanical and biological properties. Experimental samples were created by varying three parameters: cell size, isovalue, and shape factor. Computational simulations were used to analyse the relationship between these parameters and the following key response variables: surface area, permeability, porosity, and Young's modulus. Regression models were developed, and multi-objective optimisation using NSGA-II identified the Pareto set that targets surface area and permeability while meeting porosity and Young's modulus constraints. From the non-dominated solutions, the optimal design was chosen for a prototype created to validate the approach, using data from a patient's scan. View this paper
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Articles (22)

  • Article
  • Open Access
6 Citations
3,974 Views
20 Pages

Characterization of Commercial and Custom-Made Printing Filament Materials for Computed Tomography Imaging of Radiological Phantoms

  • Filippos Okkalidis,
  • Chrysoula Chatzigeorgiou,
  • Nikiforos Okkalidis,
  • Nikolay Dukov,
  • Minko Milev,
  • Zhivko Bliznakov,
  • Giovanni Mettivier,
  • Paolo Russo and
  • Kristina Bliznakova

In recent years, material extrusion-based additive manufacturing, particularly fused filament fabrication (FFF), has gained significant attention due to its versatility and cost-effectiveness in producing complex geometries. This paper presents the c...

  • Article
  • Open Access
2,937 Views
15 Pages

Sequestration of Dyes from Water into Poly(α-Olefins) Using Polyisobutylene Sequestering Agents

  • Neil Rosenfeld,
  • Mara P. Alonso,
  • Courtney Humphries and
  • David E. Bergbreiter

Trace concentrations of dyes are often present in textile wastewater streams and present a serious environmental problem. Thus, these dyes must be removed from wastewater either by degradation or sequestration prior to discharge of the wastewater int...

  • Article
  • Open Access
10 Citations
5,745 Views
21 Pages

A Smart Approach to Electric Vehicle Optimization via IoT-Enabled Recommender Systems

  • Padmanabhan Amudhavalli,
  • Rahiman Zahira,
  • Subramaniam Umashankar and
  • Xavier N. Fernando

Electric vehicles (EVs) are becoming of significant interest owing to their environmental benefits; however, energy efficiency concerns remain unsolved and require more investigation. A major issue is a lack of EV charging infrastructure, which can l...

  • Article
  • Open Access
2 Citations
3,174 Views
21 Pages

Topology optimization is a well known and sophisticated method for designing structures. Through a finite element analysis, this method optimizes the design and material distribution to obtain an ideal strength-to-weight ratio and improved strain-to-...

  • Article
  • Open Access
2 Citations
3,009 Views
14 Pages

MIRA: Multi-Joint Imitation with Recurrent Adaptation for Robot-Assisted Rehabilitation

  • Ali Ashary,
  • Ruchik Mishra,
  • Madan M. Rayguru and
  • Dan O. Popa

This work proposes a modular learning framework (MIRA) for rehabilitation robots based on a new deep recurrent neural network (RNN) that achieves adaptive multi-joint motion imitation. The RNN is fed with the fundamental frequencies as well as the ra...

  • Article
  • Open Access
6 Citations
6,900 Views
15 Pages

The stick–slip phenomenon, the initial stage when the traction wheel starts sliding on the rail, is a critical operation that needs to be detected quickly to control the traction drive. In this study, we have developed an experimental model tha...

  • Article
  • Open Access
3,677 Views
15 Pages

Math for Everybody: A Sonification Module for Computer Algebra Systems Aimed at Visually Impaired People

  • Ana M. Zambrano,
  • Mateo N. Salvador,
  • Felipe Grijalva,
  • Henry Carvajal Mora and
  • Nathaly Orozco Garzón

Computer Algebra Systems (CAS) currently lack an effective auditory representation, with most existing solutions relying on screen readers that provide limited functionality. This limitation prevents blind users from fully understanding and interpret...

  • Article
  • Open Access
3,687 Views
27 Pages

A Formal Verification Approach for Linux Kernel Designing

  • Zi Wang,
  • Yuqing Lan,
  • Xinlei He and
  • Jianghua Lv

Although the Linux kernel is widely used, its complexity makes errors common and potentially serious. Traditional formal verification methods often have high overhead and rely heavily on manual coding. They typically verify only specific functionalit...

  • Article
  • Open Access
7 Citations
2,923 Views
9 Pages

Using Principal Component Analysis for Temperature Readings from YF3:Pr3+ Luminescence

  • Anđela Rajčić,
  • Zoran Ristić,
  • Jovana Periša,
  • Bojana Milićević,
  • Saad Aldawood,
  • Abdullah N. Alodhayb,
  • Željka Antić and
  • Miroslav D. Dramićanin

The method of measuring temperature using luminescence by analyzing the emission spectra of Pr3+-doped YF3 using principal component analysis is presented. The Pr3+-doped YF3 is synthesized using a solid-state technique, and its single-phase orthorho...

  • Article
  • Open Access
3 Citations
3,578 Views
18 Pages

Roles of Micropillar Topography and Surface Energy on Cancer Cell Dynamics

  • Hoang Huy Vu,
  • Nam-Trung Nguyen,
  • Sharda Yadav,
  • Thi Thanh Ha Nguyen and
  • Navid Kashaninejad

Microstructured surfaces are renowned for their unique properties, such as waterproofing and low adhesion, making them highly applicable in the biomedical field. These surfaces play a crucial role in influencing cell response by mimicking the native...

  • Article
  • Open Access
2 Citations
3,005 Views
12 Pages

Image Reconstruction in Ultrasonic Speed-of-Sound Computed Tomography Using Time of Flight Estimated by a 2D Convolutional Neural Networks

  • Yuki Mimura,
  • Yudai Suzuki,
  • Toshiyuki Sugimoto,
  • Tadashi Saitoh,
  • Tatsuhisa Takahashi and
  • Hirotaka Yanagida

In ultrasonic nondestructive testing (NDT), accurately estimating the time of flight (TOF) of ultrasonic waves is crucial. Traditionally, TOF estimation involves the signal processing of a single measured waveform. In recent years, deep learning has...

  • Article
  • Open Access
5 Citations
7,265 Views
33 Pages

Explainable Graph Neural Networks: An Application to Open Statistics Knowledge Graphs for Estimating House Prices

  • Areti Karamanou,
  • Petros Brimos,
  • Evangelos Kalampokis and
  • Konstantinos Tarabanis

In the rapidly evolving field of real estate economics, the prediction of house prices continues to be a complex challenge, intricately tied to a multitude of socio-economic factors. Traditional predictive models often overlook spatial interdependenc...

  • Article
  • Open Access
2,608 Views
17 Pages

The rise in the dimension and complexity of information generated in the clinical field has motivated research on the automation of tasks in personalized healthcare. Recommendation systems are a filtering method that utilizes patterns and data relati...

  • Article
  • Open Access
6 Citations
2,517 Views
11 Pages

Nowadays, video is a common social media in our lives. Video summarisation has become an interesting task for information extraction, where the challenge of high redundancy of key scenes leads to difficulties in retrieving important messages. To addr...

  • Article
  • Open Access
3 Citations
3,084 Views
18 Pages

Driven by the growing interest of the scientific community and the proliferation of research in this field, cranial implants have seen significant advancements in recent years regarding design techniques, structural optimisation, appropriate material...

  • Article
  • Open Access
11 Citations
5,143 Views
22 Pages

MediaPipe Frame and Convolutional Neural Networks-Based Fingerspelling Detection in Mexican Sign Language

  • Tzeico J. Sánchez-Vicinaiz,
  • Enrique Camacho-Pérez,
  • Alejandro A. Castillo-Atoche,
  • Mayra Cruz-Fernandez,
  • José R. García-Martínez and
  • Juvenal Rodríguez-Reséndiz

This research proposes implementing a system to recognize the static signs of the Mexican Sign Language (MSL) dactylological alphabet using the MediaPipe frame and Convolutional Neural Network (CNN) models to correctly interpret the letters that repr...

  • Article
  • Open Access
3 Citations
3,303 Views
20 Pages

Experimental Benchmarking of Existing Offline Parameter Estimation Methods for Induction Motor Vector Control

  • Butukuri Koti Reddy,
  • Krishna Sandeep Ayyagari,
  • Yemula Pradeep Kumar,
  • Nimay Chandra Giri,
  • Panganamamula Venkata Rajgopal,
  • Georgios Fotis and
  • Valeri Mladenov

Induction motors dominate industrial applications due to their unwavering reliability. However, optimal vector control, critical for maximizing dynamic performance, hinges on accurate parameter estimation. This control strategy necessitates precise k...

  • Article
  • Open Access
7 Citations
6,105 Views
23 Pages

iKern: Advanced Intrusion Detection and Prevention at the Kernel Level Using eBPF

  • Hassan Jalil Hadi,
  • Mubashir Adnan,
  • Yue Cao,
  • Faisal Bashir Hussain,
  • Naveed Ahmad,
  • Mohammed Ali Alshara and
  • Yasir Javed

The development of new technologies has significantly enhanced the monitoring and analysis of network traffic. Modern solutions like the Extended Berkeley Packet Filter (eBPF) demonstrate a clear advancement over traditional techniques, allowing for...

  • Article
  • Open Access
6 Citations
3,982 Views
25 Pages

Development of Power-Delay Product Optimized ASIC-Based Computational Unit for Medical Image Compression

  • Tanya Mendez,
  • Tejasvi Parupudi,
  • Vishnumurthy Kedlaya K and
  • Subramanya G. Nayak

The proliferation of battery-operated end-user electronic devices due to technological advancements, especially in medical image processing applications, demands low power consumption, high-speed operation, and efficient coding. The design of these d...

  • Review
  • Open Access
23 Citations
44,477 Views
25 Pages

Technology in Forensic Sciences: Innovation and Precision

  • Xavier Chango,
  • Omar Flor-Unda,
  • Pedro Gil-Jiménez and
  • Hilario Gómez-Moreno

The advancement of technology and its developments have provided the forensic sciences with many cutting-edge tools, devices, and applications, allowing forensics a better and more accurate understanding of the crime scene, a better and optimal acqui...

  • Article
  • Open Access
5 Citations
3,040 Views
20 Pages

Enhanced Energy Transfer Efficiency for IoT-Enabled Cyber-Physical Systems in 6G Edge Networks with WPT-MIMO-NOMA

  • Agbon Ehime Ezekiel,
  • Kennedy Chinedu Okafor,
  • Sena Timothy Tersoo,
  • Christopher Akinyemi Alabi,
  • Jamiu Abdulsalam,
  • Agbotiname Lucky Imoize,
  • Olamide Jogunola and
  • Kelvin Anoh

The integration of wireless power transfer (WPT) with massive multiple-input multiple-output (MIMO) non-orthogonal multiple access (NOMA) networks can provide operational capabilities to energy-constrained Internet of Things (IoT) devices in cyber-ph...

  • Article
  • Open Access
1 Citations
3,620 Views
19 Pages

Partial body weight support systems have proven to be a vital tool in performing physical therapy for patients with lower limb disabilities to improve gait. Developing this type of equipment requires rigorous design process that obtains a robust syst...

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Technologies - ISSN 2227-7080