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Technologies, Volume 13, Issue 9

September 2025 - 50 articles

Cover Story: Controlling air humidity is crucial for health, building integrity, industrial processes, and evaporative cooling efficiency. Vacuum membrane-based air dehumidification (MAD) is an emerging technology that has the potential to be more energy-efficient than conventional refrigerant dehumidifiers, thus attracting increasing interest. One challenge of MAD is removing the permeating air from vacuum chambers, which leads to high power consumption. The paper presents a novel MAD technology that utilizes a vacuum mixing condenser to tackle this challenge. The cooling water directly condenses the moisture from the vacuum compressor and simultaneously removes air, followed by quasi-isothermal pressurization using gravity and a multiphase pump. The results show that the novel technology can achieve a high Coefficient of Performance of 8~12. View this paper
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Articles (50)

  • Article
  • Open Access
1,354 Views
12 Pages

This paper presents a comprehensive investigation about the use of electroencephalography (EEG) signals for classifying music stimuli through an artificial neural network (ANN). Employing the 16-channel OpenBCI CytonDaisy sensor, EEG data were gather...

  • Article
  • Open Access
560 Views
27 Pages

A spatiotemporal transmission epidemic model is proposed based on human mobility, spatial factors of population migration across multiple regions, individual protection, and government quarantine measures. First, the model’s basic reproduction...

  • Article
  • Open Access
773 Views
21 Pages

Evaluation of a Cyber-Physical System with Fuzzy Control for Efficiency Optimization in Rotary Dryers: Real-Time Multivariate Monitoring of Humidity, Temperature, Air Velocity and Mass Loss

  • Juan Manuel Tabares-Martinez,
  • Adriana Guzmán-López,
  • Micael Gerardo Bravo-Sánchez,
  • Salvador Martín Aceves,
  • Yaquelin Verenice Pantoja-Pacheco and
  • Juan Pablo Aguilera-Álvarez

Precise control and monitoring systems are essential for efficient energy consumption in food dehydration. This study develops an applied cyber-physical control system to optimize food dehydration in rotary dryers, integrating fuzzy control algorithm...

  • Article
  • Open Access
2 Citations
714 Views
33 Pages

BESS-Enabled Smart Grid Environments: A Comprehensive Framework for Cyber Threat Classification, Cybersecurity, and Operational Resilience

  • Prajwal Priyadarshan Gopinath,
  • Kishore Balasubramanian,
  • Rayappa David Amar Raj,
  • Archana Pallakonda,
  • Rama Muni Reddy Yanamala,
  • Christian Napoli and
  • Cristian Randieri

Battery Energy Storage Systems (BESSs) are critical to smart grid functioning but are exposed to mounting cybersecurity threats with their integration into IoT and cloud-based control systems. Current solutions tend to be deficient in proper multi-cl...

  • Review
  • Open Access
1 Citations
2,462 Views
32 Pages

A Review of Mamdani, Takagi–Sugeno, and Type-2 Fuzzy Controllers for MPPT and Power Management in Photovoltaic Systems

  • Rodrigo Vidal-Martínez,
  • José R. García-Martínez,
  • Rafael Rojas-Galván,
  • José M. Álvarez-Alvarado,
  • Mario Gozález-Lee and
  • Juvenal Rodríguez-Reséndiz

This review presents a synthesis of fuzzy logic-based (FL) controllers applied to photovoltaic (PV) systems over the last decade, with a specific focus on maximum power point tracking (MPPT) and power management. These subsystems are critical for imp...

  • Article
  • Open Access
4,608 Views
34 Pages

AI Ecosystem and Value Chain: A Multi-Layered Framework for Analyzing Supply, Value Creation, and Delivery Mechanisms

  • Robert Kerwin C. Billones,
  • Dan Arris S. Lauresta,
  • Jeffrey T. Dellosa,
  • Yang Bong,
  • Lampros K. Stergioulas and
  • Sharina Yunus

Despite the rapid adoption of artificial intelligence (AI) on a global scale, a comprehensive framework that maps its end-to-end value chain is missing. The presented study employed a multi-layered framework to analyze the value creation and delivery...

  • Article
  • Open Access
1 Citations
603 Views
23 Pages

DPIBP: Dining Philosophers Problem-Inspired Binary Patterns for Facial Expression Recognition

  • Archana Pallakonda,
  • Rama Muni Reddy Yanamala,
  • Rayappa David Amar Raj,
  • Christian Napoli and
  • Cristian Randieri

Emotion recognition plays a crucial role in our day-to-day communication, and detecting emotions is one of the most formidable tasks in the field of human–computer Interaction (HCI). Facial expressions are the most straightforward and efficient...

  • Article
  • Open Access
684 Views
20 Pages

Multi-Encoding Contrastive Learning for Dual-Stream Self-Supervised 3D Dental Segmentation Network

  • Tian Ma,
  • Xiaoyuan Wei,
  • Jiechen Zhai,
  • Ziang Zhang,
  • Yawen Li and
  • Yuancheng Li

To address the limitation regarding the supervised dataset scale in the semantic recognition of newly distributed types such as wisdom teeth and missing teeth, the multi-encoding contrastive learning for dual-stream self-supervised 3D dental segmenta...

  • Review
  • Open Access
888 Views
21 Pages

The use of technological applications for cognitive assessment and rehabilitation is growing, yet tools specifically targeting cognition in concussed individuals remain underexplored. This rapid review examined technologies used for cognitive assessm...

  • Article
  • Open Access
676 Views
21 Pages

Life Damage Online Monitoring Technology of a Steam Turbine Rotor Start-Up Based on an Empirical-Statistical Model

  • Wenhe Liu,
  • Baoguo Liang,
  • Xuhui Wu,
  • Mengmeng Yang,
  • Zhihe Sun,
  • Yucong Li,
  • Mingze Yao,
  • Zhanyang Xu and
  • Feng Zhang

In order to achieve fast and accurate life damage online monitoring of the steam turbine rotor, it was significant to propose an empirical-statistical model using a machine learning algorithm instead of finite element simulation to improve the effect...

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Technologies - ISSN 2227-7080