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Technologies, Volume 13, Issue 6

2025 June - 50 articles

Cover Story: This study proposes an innovative protocol for robot-assisted lower-limb rehabilitation for patients with hemiparesis. It integrates dual interaction with the patient, using mirror therapy and a self-adaptive control system based on EMG. The system features a robotic platform dedicated to lower-limb rehabilitation, integrated with an immersive virtual reality (VR) environment, which includes a digital twin of the robot, a patient avatar, and virtual targets. Mirror therapy is implemented using inertial sensors placed on the healthy limb to capture movements in real time. The goal is to stimulate neuroplasticity and increase engagement, and laboratory tests show motor improvements and support the potential of personalized therapies based on the combination of robotics and VR. View this paper
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Articles (50)

  • Article
  • Open Access
1 Citations
1,278 Views
16 Pages

Optimal Control Strategy and Evaluation Framework for Frequency Response of Combined Wind–Storage Systems

  • Jie Hao,
  • Huiping Zheng,
  • Xueting Cheng,
  • Yuxiang Li,
  • Liming Bo and
  • Juan Wei

The increasing integration of wind turbines into the power grid has reduced the system frequency stability, necessitating the integration of energy storage systems in primary frequency regulation. This paper proposes an MPC-based control method to op...

  • Article
  • Open Access
951 Views
16 Pages

A Socially Assistive Robot as Orchestrator of an AAL Environment for Seniors

  • Carlos E. Sanchez-Torres,
  • Ernesto A. Lozano,
  • Irvin H. López-Nava,
  • J. Antonio Garcia-Macias and
  • Jesus Favela

Social robots in Ambient Assisted Living (AAL) environments offer a promising alternative for enhancing senior care by providing companionship and functional support. These robots can serve as intuitive interfaces to complex smart home systems, allow...

  • Article
  • Open Access
1,444 Views
21 Pages

The early detection of Alzheimer’s disease (AD) is essential for improving patient outcomes, enabling timely intervention, and slowing disease progression. However, the complexity of neuroimaging data presents significant obstacles to accurate...

  • Article
  • Open Access
997 Views
19 Pages

Dynamic Hypergraph Convolutional Networks for Hand Motion Gesture Sequence Recognition

  • Dong-Xing Jing,
  • Kui Huang,
  • Shi-Jian Liu,
  • Zheng Zou and
  • Chih-Yu Hsu

This paper introduces a novel approach to hand motion gesture recognition by integrating the Fourier transform with hypergraph convolutional networks (HGCNs). Traditional recognition methods often struggle to capture the complex spatiotemporal dynami...

  • Article
  • Open Access
1 Citations
2,957 Views
41 Pages

Optimizing LoRaWAN Gateway Placement in Urban Environments: A Hybrid PSO-DE Algorithm Validated via HTZ Simulations

  • Kanar Alaa Al-Sammak,
  • Sama Hussein Al-Gburi,
  • Ion Marghescu,
  • Ana-Maria Claudia Drăgulinescu,
  • Cristina Marghescu,
  • Alexandru Martian,
  • Nayef A. M. Alduais and
  • Nawar Alaa Hussein Al-Sammak

With rapid advancements in the Internet of Things (IoT), Low-Power Wide-Area Networks (LPWANs) play a crucial role in expanding IoT’s capabilities while using minimal energy. Among the various LPWAN technologies, LoRaWAN (Long-Range Wide-Area N...

  • Article
  • Open Access
731 Views
26 Pages

The Internet of Things (IoT) aims to wirelessly connect billions of physical things to the IT infrastructure. Although there are several radio access technologies available, few of them meet the needs of Internet of Things applications, such as long...

  • Article
  • Open Access
2 Citations
1,867 Views
19 Pages

A Miniaturized RHCP Slot Antenna for Wideband Applications Including Sub-6 GHz 5G

  • Atyaf H. Mohammed,
  • Falih M. Alnahwi,
  • Yasir I. A. Al-Yasir and
  • Sunday C. Ekpo

The rapid development of 5G and next-generation wireless systems has increased the demand for antennas that support circular polarization (CP), wide frequency coverage, and a compact size. Achieving wideband CP performance in a low-profile and simple...

  • Article
  • Open Access
1 Citations
1,774 Views
34 Pages

Towards an Emotion-Aware Metaverse: A Human-Centric Shipboard Fire Drill Simulator

  • Musaab H. Hamed-Ahmed,
  • Diego Ramil-López,
  • Paula Fraga-Lamas and
  • Tiago M. Fernández-Caramés

Traditional Extended Reality (XR) and Metaverse applications focus heavily on User Experience (UX) but often overlook the role of emotions in user interaction. This article addresses that gap by presenting an emotion-aware Metaverse application: a Vi...

  • Article
  • Open Access
768 Views
16 Pages

Analysis of internal pressure failure is a crucial aspect of assessing pipeline integrity. By combining the unified yield criterion with actual burst data, the applicability of different yield criteria is elucidated. Based on the distribution law of...

  • Review
  • Open Access
5 Citations
6,517 Views
43 Pages

Creating meaningful interactions using smart textiles involves both a comprehensive understanding of relevant materials and technologies (M&T) and how users engage with this type of interface. Despite its relevance to design research, user experi...

  • Article
  • Open Access
3 Citations
2,884 Views
23 Pages

A Hybrid Intelligent Model for Olympic Medal Prediction Based on Data-Intelligence Fusion

  • Ning Li,
  • Junhao Li,
  • Hejia Fang,
  • Jian Wang,
  • Qiao Yu and
  • Yafei Shi

This study presents a hybrid intelligent model for predicting Olympic medal distribution at the 2028 Los Angeles Games, based on data-intelligence fusion (DIF). By integrating historical medal records, athlete performance metrics, debut medal-winning...

  • Article
  • Open Access
841 Views
25 Pages

This study investigates the effect of fiber weight fraction on the tribomechanical behavior of basalt fiber-reinforced polymer (BFRP) composites under dry sliding conditions. Composite specimens with 50%, 65%, and 70% basalt fiber contents were manuf...

  • Article
  • Open Access
1,900 Views
19 Pages

Neck Functional Status Assessment Using Virtual Reality Simulation of Daily Activities

  • José Angel Santos-Paz,
  • Álvaro Sánchez-Picot,
  • Elena Bocos-Corredor,
  • Filippo Moggioli,
  • Aitor Martin-Pintado-Zugasti,
  • Rodrigo García-Carmona and
  • Abraham Otero

Neck pain is a significant global health concern and a leading cause of disability. Conventional clinical neck assessments often rely on maximal Cervical Range of Motion (CROM) measurements, which may not accurately reflect functional limitations exp...

  • Article
  • Open Access
1 Citations
1,931 Views
29 Pages

Green Ground: Construction and Demolition Waste Prediction Using a Deep Learning Algorithm

  • Wadha N. Alsheddi,
  • Shahad E. Aljayan,
  • Asma Z. Alshehri,
  • Manar F. Alenzi,
  • Norah M. Alnaim,
  • Maryam M. Alshammari,
  • Nouf K. AL-Saleem and
  • Abdulaziz I. Almulhim

The waste management and recycling industry in Saudi Arabia is facing ongoing challenges in reducing the negative impact resulting from the recycling process. Different types of waste lack an efficient and accurate method for classification, especial...

  • Article
  • Open Access
3 Citations
1,153 Views
24 Pages

Center of Mass Auto-Location in Space

  • Lucas McLeland,
  • Brian Erickson,
  • Brendan Ruchlin,
  • Eryn Daman,
  • James Mejia,
  • Benjamin Ho,
  • Joshua Lewis,
  • Bryan Mann,
  • Connor Paw and
  • Timothy Sands
  • + 6 authors

Maintaining a spacecraft’s center of mass at the origin of a body-fixed coordinate system is often key to precision trajectory tracking. Typically, the inertia matrix is estimated and verified with preliminary ground testing. This article prese...

  • Review
  • Open Access
3 Citations
6,034 Views
42 Pages

Routing Challenges and Enabling Technologies for 6G–Satellite Network Integration: Toward Seamless Global Connectivity

  • Fatma Aktas,
  • Ibraheem Shayea,
  • Mustafa Ergen,
  • Laura Aldasheva,
  • Bilal Saoud,
  • Akhmet Tussupov,
  • Didar Yedilkhan and
  • Saule Amanzholova

The capabilities of 6G networks surpass those of existing networks, aiming to enable seamless connectivity between all entities and users at any given time. A critical aspect of achieving enhanced and ubiquitous mobile broadband, as promised by 6G ne...

  • Article
  • Open Access
2 Citations
1,944 Views
26 Pages

Unified Framework for RIS-Enhanced Wireless Communication and Ambient RF Energy Harvesting: Performance and Sustainability Analysis

  • Sunday Enahoro,
  • Sunday Ekpo,
  • Yasir Al-Yasir,
  • Mfonobong Uko,
  • Fanuel Elias,
  • Rahul Unnikrishnan and
  • Stephen Alabi

The increasing demand for high-capacity, energy-efficient wireless networks poses significant challenges in maintaining spectral efficiency, minimizing interference, and ensuring sustainability. Traditional direct-link communication suffers from sign...

  • Article
  • Open Access
1 Citations
2,338 Views
23 Pages

One of the most critical aspects of turning, and machining in general, is the surface roughness of the finished product, which directly influences the performance, functionality, and longevity of machined components. The accurate prediction of surfac...

  • Article
  • Open Access
2 Citations
4,842 Views
37 Pages

An Approach to Business Continuity Self-Assessment

  • Nelson Russo,
  • Henrique São Mamede and
  • Leonilde Reis

Business Continuity Management (BCM) is critical for organizations to mitigate disruptions and maintain operations, yet many struggle with fragmented and non-standardized self-assessment tools. Existing frameworks often lack holistic integration, foc...

  • Article
  • Open Access
1,028 Views
18 Pages

A Novel Framework for Co-Expansion Planning of Transmission Lines and Energy Storage Devices Considering Unit Commitment

  • Edimar José de Oliveira,
  • Lucas Santiago Nepomuceno,
  • Leonardo Willer de Oliveira and
  • Arthur Neves de Paula

This paper presents a methodology for the co-expansion planning of transmission lines and energy storage systems, considering unit commitment constraints and uncertainties in load demand and wind generation. The problem is formulated as a mixed-integ...

  • Article
  • Open Access
985 Views
25 Pages

Photovoltaic Power Estimation for Energy Management Systems Addressing NMOT Removal with Simplified Thermal Models

  • Juan G. Marroquín-Pimentel,
  • Manuel Madrigal-Martínez,
  • Juan C. Olivares-Galvan and
  • Alma L. Núñez-González

For energy management systems, it is crucial to determine, in advance, the available energy from renewable sources to be dispatched in the next hours or days, in order to meet their generation and consumption goals. Predicting the photovoltaic power...

  • Article
  • Open Access
1,765 Views
14 Pages

Development of a Low-Cost Multi-Physiological Signal Simulation System for Multimodal Wearable Device Calibration

  • Tumenkhuslen Delgerkhaan,
  • Qun Wei,
  • Jiwoo Jung,
  • Sangwon Lee,
  • Gangoh Na,
  • Bongjo Kim,
  • In-Cheol Kim and
  • Heejoon Park

Using multimodal wearable devices to diagnose cardiovascular diseases early is essential for providing timely medical assistance, particularly in remote areas. This approach helps prevent risks and reduce mortality rates. However, prolonged use of me...

  • Article
  • Open Access
2 Citations
2,617 Views
36 Pages

Transition to a Circular Bioeconomy in the Sugar Agro-Industry: Predictive Modeling to Estimate the Energy Potential of By-Products

  • Yoisdel Castillo Alvarez,
  • Reinier Jiménez Borges,
  • Gendry Alfonso-Francia,
  • Berlan Rodríguez Pérez,
  • Carlos Diego Patiño Vidal,
  • Luis Angel Iturralde Carrera and
  • Juvenal Rodríguez-Reséndiz

The linear economy model in the sugar agroindustry has generated multiple impacts due to the underutilization of by-products and reliance on fossil fuels. Through predictive modeling and anaerobic digestion, the circular bioeconomy of sugarcane bioma...

  • Article
  • Open Access
1,856 Views
29 Pages

Design, Development, and Evaluation of a Contactless Respiration Rate Measurement Device Utilizing a Self-Heating Thermistor

  • Reza Saatchi,
  • Alan Holloway,
  • Johnathan Travis,
  • Heather Elphick,
  • William Daw,
  • Ruth N. Kingshott,
  • Ben Hughes,
  • Derek Burke,
  • Anthony Jones and
  • Robert L. Evans

The respiration rate (RR) is an important vital sign for early detection of health deterioration in critically unwell patients. Its current measurement has limitations, relying on visual counting of chest movements. The design of a new RR measurement...

  • Article
  • Open Access
1,004 Views
18 Pages

The work presented in this paper discusses the steps taken to design, implement, and test a mechatronic test stand that uses historical wind power data to generate thermal power that could be used by small-to-medium consumers. The work also pertains...

  • Article
  • Open Access
2,273 Views
24 Pages

Mathematical Modeling of Optimal Drone Flight Trajectories for Enhanced Object Detection in Video Streams Using Kolmogorov–Arnold Networks

  • Aida Issembayeva,
  • Oleksandr Kuznetsov,
  • Anargul Shaushenova,
  • Ardak Nurpeisova,
  • Gabit Shuitenov and
  • Maral Ongarbayeva

This study addresses the critical challenge of optimizing drone flight parameters for enhanced object detection in video streams. While most research focuses on improving detection algorithms, the relationship between flight parameters and detection...

  • Article
  • Open Access
2 Citations
1,326 Views
16 Pages

Computationally Efficient Transfer Learning Pipeline for Oil Palm Fresh Fruit Bunch Defect Detection

  • Yang Luo,
  • Anwar P. P. Abdul Majeed,
  • Zaid Omar,
  • Saad Aslam and
  • Yi Chen

The present study addresses the inefficiencies of the manual classification of oil palm fresh fruit bunches (FFBs) by introducing a computationally efficient alternative to traditional deep learning approaches that require extensive retraining and la...

  • Article
  • Open Access
871 Views
20 Pages

Comparing Strategies for Optimal Pumps as Turbines Selection in Pressurised Irrigation Networks Using Particle Swarm Optimisation: Application in Canal del Zújar Irrigation District, Spain

  • Mariana Akemi Ikegawa Bernabé,
  • Miguel Crespo Chacón,
  • Juan Antonio Rodríguez Díaz,
  • Pilar Montesinos and
  • Jorge García Morillo

The modernisation of irrigation networks has enhanced water use efficiency but increased energy demand and costs in agriculture. Energy recovery (ER) is possible by utilising excess pressure to generate electricity with pumps as turbines (PATs), offe...

  • Article
  • Open Access
1 Citations
3,681 Views
19 Pages

A New Method for Camera Auto White Balance for Portrait

  • Sicong Zhou,
  • Kaida Xiao,
  • Changjun Li,
  • Peihua Lai,
  • Hong Luo and
  • Wenjun Sun

Accurate skin color reproduction under varying CCT remains a critical challenge in the graphic arts, impacting applications such as face recognition, portrait photography, and human–computer interaction. Traditional AWB methods like gray-world...

  • Article
  • Open Access
1 Citations
1,058 Views
18 Pages

In Situ Ceramic Phase Reinforcement via Short-Pulsed Laser Cladding for Enhanced Tribo-Mechanical Behavior of Metal Matrix Composite FeNiCr-B4C (5 and 7 wt.%) Coatings

  • Artem Okulov,
  • Olga Iusupova,
  • Alexander Stepchenkov,
  • Vladimir Zavalishin,
  • Elena Marchenkova,
  • Kun Liu,
  • Jie Li,
  • Tushar Sonar,
  • Aleksey Makarov and
  • Yuefei Jia
  • + 6 authors

This study elucidates the dynamic tribo-mechanical response of laser-cladded FeNiCr-B4C metal matrix composite (MMC) coatings on AISI 1040 steel substrate, unraveling the intricate interplay between microstructural features and phase transformations....

  • Article
  • Open Access
1 Citations
3,621 Views
21 Pages

Dominant colors significantly influence visual image perception and are widely used in computer vision and design. Traditional extraction methods often neglect visually salient colors that occupy small areas yet possess high aesthetic relevance. This...

  • Article
  • Open Access
3 Citations
2,870 Views
18 Pages

How can AI help us connect to the past in terms of conservation? How can 17-year-old photos be helpful in renewed preservation efforts? This research aims to use AI to connect both in a seamless 3D reconstruction of heritage from images taken of Gong...

  • Article
  • Open Access
4 Citations
1,660 Views
27 Pages

Additive manufacturing (AM) presents significant opportunities for advancing sustainability through optimized process control and material utilization. This research investigates the application of machine learning (ML) models to directly associate A...

  • Article
  • Open Access
1 Citations
3,964 Views
26 Pages

A Combined Mirror–EMG Robot-Assisted Therapy System for Lower Limb Rehabilitation

  • Florin Covaciu,
  • Bogdan Gherman,
  • Calin Vaida,
  • Adrian Pisla,
  • Paul Tucan,
  • Andrei Caprariu and
  • Doina Pisla

This paper presents the development and initial evaluation of a novel protocol for robot-assisted lower limb rehabilitation. It integrates dual-modal patient interaction, employing mirror therapy and an auto-adaptive EMG-driven control system, design...

  • Article
  • Open Access
2 Citations
1,950 Views
23 Pages

Numerical Simulations of Scaling of the Chamber Dimensions of the Liquid Piston Compressor for Hydrogen Applications

  • Marina Konuhova,
  • Valerijs Bezrukovs,
  • Vladislavs Bezrukovs,
  • Deniss Bezrukovs,
  • Maksym Buryi,
  • Nikita Gorbunovs and
  • Anatoli I. Popov

Hydrogen compression is a critical process in hydrogen storage and distribution, particularly for energy infrastructure and transportation. As hydrogen technologies expand beyond limited industrial applications, they are increasingly supporting the g...

  • Article
  • Open Access
1 Citations
1,428 Views
21 Pages

Non-Contact Platform for the Assessment of Physical Function in Older Adults: A Pilot Study

  • Ana Sobrino-Santos,
  • Pedro Anuarbe,
  • Carlos Fernandez-Viadero,
  • Roberto García-García,
  • José Miguel López-Higuera,
  • Luis Rodríguez-Cobo and
  • Adolfo Cobo

In the context of global population aging, identifying reliable, objective tools to assess physical function and postural stability in older adults is increasingly important to mitigate fall risk. This study presents a non-contact platform that uses...

  • Article
  • Open Access
2 Citations
1,734 Views
20 Pages

The Use of Perlite and Rhyolite in Concrete Mix Design: Influence on Physical-Mechanical and Environmental Performance

  • Giovanna Concu,
  • Marco Zucca,
  • Flavio Stochino,
  • Monica Valdes and
  • Francesca Maltinti

During the last decades, the ever-growing evolution of the construction industry has led to a significant increase in demand for increasingly high-performing construction materials both in terms of mechanical characteristics and sustainability. Focus...

  • Article
  • Open Access
17 Citations
6,801 Views
26 Pages

A Hybrid KAN-BiLSTM Transformer with Multi-Domain Dynamic Attention Model for Cybersecurity

  • Aleksandr Chechkin,
  • Ekaterina Pleshakova and
  • Sergey Gataullin

With the exponential growth of cyberbullying cases on social media, there is a growing need to develop effective mechanisms for its detection and prediction, which can create a safer and more comfortable digital environment. One of the areas with suc...

  • Article
  • Open Access
4,231 Views
18 Pages

A Novel Dataset for Early Cardiovascular Risk Detection in School Children Using Machine Learning

  • Rafael Alejandro Olivera Solís,
  • Emilio Francisco González Rodríguez,
  • Roberto Castañeda Sheissa,
  • Juan Valentín Lorenzo-Ginori and
  • José García

This study introduces the PROCDEC dataset, a novel collection of 1140 cases with 30 cardiovascular risk factors gathered over a 10-year period from school children in Santa Clara, Cuba. The dataset was curated with input from medical experts in pedia...

  • Review
  • Open Access
3 Citations
4,283 Views
30 Pages

Review of Converter Circuits with Power Factor Correction

  • Angel Quiroga,
  • Jhon Bayona and
  • Helbert Espitia

This article reviews converter circuits with power factor correction considering issues that arise in implementing such circuits. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) procedure are employed for the review. S...

  • Article
  • Open Access
4 Citations
1,262 Views
22 Pages

Driven by the global “double carbon” goal, the volatility of renewable energy poses a challenge to the stability of power systems. Traditional methods have difficulty dealing with high-dimensional nonlinear data, and the single deep learn...

  • Article
  • Open Access
1,012 Views
15 Pages

A Checklist to Assess Technologies for the Diagnosis and Rehabilitation of Geriatric Syndromes: A Delphi Study

  • Alessia Gallucci,
  • Cosimo Tuena,
  • Anna Vedani,
  • Marco Stramba-Badiale,
  • Lorena Rossi,
  • Antonio Greco,
  • Fabrizio Giunco and
  • Pietro Davide Trimarchi

Technologies for frail elderly individuals facilitate the integration of care services, support the post-discharge period, and enhance independence and quality of life while reducing isolation. However, the lack of methodological rigor in studies on...

  • Review
  • Open Access
12 Citations
8,193 Views
31 Pages

Functioning as a smart aggregation entity that combines distributed energy resources, energy storage systems, and flexible loads, virtual power plants (VPPs) serve as a pivotal technology in advancing the decarbonization and flexibility enhancement o...

  • Article
  • Open Access
3 Citations
2,575 Views
15 Pages

Medical students face significant challenges retaining complex information, such as interpreting ECGs for coronary artery occlusions, amidst demanding curricula. While artificial intelligence (AI) is increasingly used for medical image analysis, this...

  • Article
  • Open Access
1 Citations
679 Views
17 Pages

In this paper, an optimal transient control (OTC) scheme is proposed to improve the transient stability of the grid-forming (GFM) wind farm (WF) based on the transient stability of the WTs. The converter’s current operating safety range is cons...

  • Article
  • Open Access
1 Citations
2,553 Views
34 Pages

Intelligent Battery Management in a Hybrid Photovoltaic Using Fuzzy Logic System

  • Jo-Ann V. Magsumbol,
  • Argel A. Bandala,
  • Alvin B. Culaba,
  • Edwin Sybingco,
  • Ryan Rhay P. Vicerra,
  • Raouf Naguib and
  • Elmer P. Dadios

LiFePO4 batteries need a battery management system (BMS) to improve performance, extend their lifespan, and maintain safety by utilizing advanced monitoring, control, and optimization techniques. This paper presents the design, development, and imple...

  • Article
  • Open Access
1,087 Views
20 Pages

Dynamic Simulation Model to Monitor Flow Growth Rivers in Rapid-Response Catchments Using Humanitarian Logistic Strategies

  • Jesús Delgado-Maciel,
  • Guillermo Cortés-Robles,
  • José Roberto Grande-Ramírez,
  • Luis Rolando Guarneros-Nolasco,
  • José Ernesto Domínguez-Herrera,
  • Roberto Alvarado-Juárez and
  • Enrique Delgado-Alvarado

Climate change, driven by natural factors and human activity, produces significant environmental changes worldwide. One consequence is increased rainfall, which leads to intense and increasingly frequent storms, sudden increases in river flows, and i...

  • Article
  • Open Access
5 Citations
1,545 Views
22 Pages

A multi-order combined diffraction spatial filter, integrated with a set of Zernike phase functions (representing wavefront aberrations) and Zernike polynomials, enables the simultaneous formation of multiple aberration-transformed point spread funct...

  • Article
  • Open Access
1 Citations
1,003 Views
24 Pages

Advanced Machine Learning Methods for the Prediction of the Optical Parameters of Tellurite Glasses

  • Fahimeh Ahmadi,
  • Mohsen Hajihassani,
  • Tryfon Sivenas,
  • Stefanos Papanikolaou and
  • Panagiotis G. Asteris

This study evaluates the predictive performance of advanced machine learning models, including DeepBoost, XGBoost, CatBoost, RF, and MLP, in estimating the Ω2, Ω4, and Ω6 parameters based on a comprehensive set of input variables. A...

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Technologies - ISSN 2227-7080