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Applied Sciences, Volume 15, Issue 7

2025 April-1 - 658 articles

Cover Story: Imaging Atmospheric Cherenkov Telescopes (IACTs) have revolutionized our understanding of the universe at very high energies (VHEs), enabling groundbreaking discoveries of extreme astrophysical phenomena. These instruments capture the brief flashes of Cherenkov light produced when VHE particles interact with Earth’s atmosphere, providing unique insights into cosmic accelerators and high-energy radiation sources. We describe how the pixel time tags can help in the discrimination between photonic and hadronic showers, with a focus on the ASTRI Mini-Array Cherenkov Event Reconstruction. Our methodology employs a Random Forest classifier with optimized hyperparameters, trained on a balanced dataset of gamma and hadron events. This machine learning approach enables effective integration of both morphological and temporal information, resulting in improved classification performance. View this paper
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Articles (658)

  • Article
  • Open Access
1,065 Views
18 Pages

7 April 2025

With the development of industry and society, explosives are widely used in social production as an important industrial product and require transportation. Explosives transport vehicles are susceptible to various objective factors during driving, in...

  • Article
  • Open Access
2 Citations
2,653 Views
14 Pages

7 April 2025

Recent advancements in end-to-end (E2E) modeling have notably improved automatic speech recognition (ASR) systems; however, far-field speech recognition (FSR) remains challenging due to signal degradation from factors such as low signal-to-noise rati...

  • Article
  • Open Access
4 Citations
1,451 Views
14 Pages

7 April 2025

This paper deals with a new secured execution environment which adapts blockchain technology to defend artificial intelligence (AI) models against data poisoning (DP) attacks. The Blockchain Governance Game (BGG) is a theoretical framework for analyz...

  • Article
  • Open Access
1 Citations
3,394 Views
34 Pages

Study About the Performance of Ascon in Arduino Devices

  • Ventura Sarasa Laborda,
  • Luis Hernández-Álvarez,
  • Luis Hernández Encinas,
  • José Ignacio Sánchez García  and
  • Araceli Queiruga-Dios

7 April 2025

In 2023, the Ascon cipher suite was selected as the winner of the National Institute of Standards and Technology (NIST) standardization process for lightweight cryptography, and has emerged as the leading candidate for cryptographic algorithms in res...

  • Article
  • Open Access
3 Citations
897 Views
20 Pages

Real-Time DTM Generation with Sequential Estimation and OptD Method

  • Wioleta Błaszczak-Bąk,
  • Waldemar Kamiński,
  • Michał Bednarczyk,
  • Czesław Suchocki and
  • Andrea Masiero

7 April 2025

Data acquisition and simultaneous generation of real-time digital terrain models (DTMs) is a demanding task, due to the vast amounts of observations collected by modern technologies and measurement instruments in a short time. Existing methods for ge...

  • Article
  • Open Access
2 Citations
2,000 Views
15 Pages

7 April 2025

This study challenges the commonly used testbeds and benchmarks for testing stereo matching algorithms. Although the algorithms listed in the rankings based on these testbeds score exceptionally high, stereo matching technology still suffers from maj...

  • Article
  • Open Access
4 Citations
2,755 Views
24 Pages

7 April 2025

The integration of multi-sensor imaging and deep learning techniques has emerged as a pivotal innovation in advancing structural mechanics, particularly in the prediction of stress and strain distributions. This study falls within the thematic scope...

  • Article
  • Open Access
1 Citations
2,592 Views
12 Pages

Calibration of a Low-Cost 8×8 Active Phased Array Antenna

  • Xiaoliang Sun,
  • Jorge Calatayud-Maeso,
  • Alfonso-Tomás Muriel-Barrado,
  • José-Manuel Fernández-González and
  • Manuel Sierra-Castañer

7 April 2025

This paper presents the calibration process involved in a planar active phased array antenna operating in the K-band (17.7–20.2 GHz). The array consists of eight columns, each containing a 1 × 8 subarray of patch antennas. To enhance the...

  • Article
  • Open Access
667 Views
20 Pages

7 April 2025

To effectively determine the influences of fuzzy uncertainties on structural systems in engineering, according to the fuzzy failure probability (FFP) model, which is based on the probabilistic perspective, the importance measure (IM) technique is ext...

  • Article
  • Open Access
1 Citations
879 Views
22 Pages

7 April 2025

The precoder obtained using the traditional singular value decomposition (SVD) method for legitimate user’s channel, while achieving the highest spectral efficiency for the legitimate user, cannot defend against eavesdropping attacks, thus posi...

  • Study Protocol
  • Open Access
1,571 Views
18 Pages

7 April 2025

Hollow wear on wheels is a common form of surface damage often observed in high-velocity vehicles. It is widely recognized that hollow wear of the wheel tread degrades the dynamic performance of rail vehicles, especially in the issue commonly referre...

  • Article
  • Open Access
2 Citations
1,113 Views
10 Pages

Fractal Dimension of the Condylar Bone Structure in Patients with Unilateral Condylar Hyperplasia: Cross-Sectional Retrospective Study

  • Adriana Assunta De Stefano,
  • Ludovica Musone,
  • Martina Horodynski,
  • Roberto Antonio Vernucci and
  • Gabriella Galluccio

7 April 2025

Unilateral condylar hyperplasia (UCH) is one of the causes of facial asymmetry, and it is characterized by increased growth in one of the mandibular condyles. In UCH, it is important to determine whether the metabolic activity of the hyperplastic con...

  • Article
  • Open Access
1 Citations
948 Views
29 Pages

7 April 2025

With the rapid growth of renewable energy generation capacity, integrating thermal power units and renewable energy units at the point of common coupling (PCC) as a coupling system (CS) can significantly enhance the operational reliability and econom...

  • Article
  • Open Access
764 Views
19 Pages

Sealing of Unconformity Structure and Hydrocarbon Accumulation in the Baikouquan Formation of the Mahu Sag

  • Zexin Wan,
  • Menglin Zheng,
  • Xiaolong Wang,
  • Yiyao Bao,
  • Zhiyuan An,
  • Qilin Xiao and
  • Yunqiao Chen

7 April 2025

Unconformity stratigraphic traps are widely developed in the Mahu Sag, on the northwestern margin of the Junggar Basin. It is of great significance for subsequent oil and gas exploration to explore the role of conglomerate accumulation mode and uncon...

  • Article
  • Open Access
1 Citations
1,735 Views
12 Pages

7 April 2025

This study developed a dynamic model for the Traffic Speed Deflectometer (TSD) on inverted asphalt pavement structures. It is aimed at evaluating the deflection slope and quantifying measurement errors. First, the reliability of the ABAQUS model in s...

  • Article
  • Open Access
2 Citations
3,342 Views
11 Pages

Development of a Simple HPLC Method for the Analysis of Ergosterol and UV-Enriched Vitamin D₂ in Mushroom Powders

  • Judit Bajzát,
  • András Misz,
  • József Rácz,
  • Máté Vágvölgyi,
  • Csaba Csutorás and
  • Csaba Vágvölgyi

7 April 2025

In this study, a straightforward and cost-effective HPLC-UV method was developed for the rapid determination of vitamin D2 and ergosterol in mushrooms. These bioactive components are known to play a significant role in the nutritional value of mushro...

  • Article
  • Open Access
1,291 Views
19 Pages

Mental Health, Overweight, and Physical Exercise in Young Portuguese Adults: A Cross-Sectional Study

  • Tânia Gonçalves,
  • Diogo Monteiro,
  • Rui Matos,
  • Pedro Duarte-Mendes,
  • Nuno Couto,
  • Raul Antunes,
  • Susana Diz,
  • Nuno Amaro and
  • Miguel Jacinto

7 April 2025

The aim of this study was to see if there are any associations between mental health, Body Mass Index (BMI), and physical exercise (PE) in young Portuguese adults. The sample consisted of 414 people aged between 18 and 25 years old. A sociodemographi...

  • Review
  • Open Access
1 Citations
3,982 Views
30 Pages

7 April 2025

Although plastic has many desirable properties and numerous social benefits, it is a serious ecological problem due to massive application and difficult decomposing. Various environmental and anthropogenic impacts indicate that plastic breaks down in...

  • Article
  • Open Access
838 Views
17 Pages

7 April 2025

In recent years, with the growing interest in the Internet of Things (IoT) and decarbonization, energy harvesting has been attracting attention. Energy harvesting is a technology that converts ambient energy such as light, heat, and vibration into el...

  • Article
  • Open Access
911 Views
18 Pages

7 April 2025

The mechanism of atherosclerosis lesions was investigated based on a fluid–structure interaction method according to the geometric reconstruction of human arteries by medical imaging. Numerical simulation, mechanical analysis, and dynamic simul...

  • Article
  • Open Access
1 Citations
2,431 Views
14 Pages

7 April 2025

Background: This study evaluated a custom algorithm that sought to perform a radiogenomic analysis on lung cancer genetic and imaging data, specifically by using machine learning to see whether a custom clustering/classification method could simultan...

  • Article
  • Open Access
3 Citations
1,991 Views
29 Pages

Optimizing Thermal Performance of Mini Heat Exchangers: An Experimental Analysis Using a Full Factorial Design

  • Sergio da Silva Franco,
  • Álvaro Augusto Soares Lima,
  • Alvaro Antonio Villa Ochoa,
  • José Ângelo Peixoto da Costa,
  • Gustavo de Novaes Pires Leite,
  • Márcio Vilar,
  • Kilvio Alessandro Ferraz and
  • Paula Suemy Arruda Michima

7 April 2025

This study seeks to investigate the heat dissipation process in a minichannel heat exchanger, commonly employed for cooling electronic components. The analysis centers on two key factors: global thermal resistance (GTR) and the heat transfer coeffici...

  • Article
  • Open Access
962 Views
16 Pages

7 April 2025

A steel–concrete composite beam with a straddle monorail is a lightweight and easily installable structure. The mechanical performance of group stud connectors and their arrangement are key design parameters that govern the beam’s overall...

  • Article
  • Open Access
1,201 Views
16 Pages

7 April 2025

A surface acoustic wave-based NO2 sensor and its interface electronics, utilizing monolayered two-dimensional sensing materials, were developed for internal pollution monitoring in spacecraft. The sensor system consists of a two-port SAW delay line w...

  • Article
  • Open Access
2 Citations
1,072 Views
19 Pages

7 April 2025

Given that rotating machinery is one of the most commonly used types of mechanical equipment in industrial applications, the identification of its health status is crucial for the safe operation of the entire system. Traditional equipment health stat...

  • Article
  • Open Access
3 Citations
2,081 Views
28 Pages

Blockchain-Based UAV-Assisted Mobile Edge Computing for Dual Game Resource Allocation

  • Shanchen Pang,
  • Yu Tang,
  • Xue Zhai,
  • Siyuan Tong and
  • Zhenghao Wan

7 April 2025

UAV-assisted mobile edge computing combines the flexibility of UAVs with the computing power of MEC to provide low-latency, high-performance computing solutions for a wide range of application scenarios. However, due to the highly dynamic and heterog...

  • Article
  • Open Access
780 Views
16 Pages

7 April 2025

Solving the Euler equations often requires expensive computations of complex, high-order time derivatives. Although Taylor Discontinuous Galerkin (TDG) schemes are renowned for their accuracy and stability, directly evaluating third-order tensor deri...

  • Article
  • Open Access
1,231 Views
17 Pages

Bubble Temperature Effect on the Heat Transfer Performance of R449a During Flow Boiling Inside a Horizontal Smooth Tube

  • Andrea Lucchini,
  • Bharath Nagaraju,
  • Igor Matteo Carraretto,
  • Luigi Pietro Maria Colombo,
  • Domenico Mazzeo,
  • Luca Molinaroli and
  • Paola Grazia Pittoni

7 April 2025

Since the Montreal Protocol (dated 1987), the reduction of the environmental impact has been one of the main goals in the HVAC sector, which has led to the replacement of widely used fluids with new environmentally friendly ones. Nevertheless, only n...

  • Article
  • Open Access
2 Citations
1,855 Views
21 Pages

7 April 2025

In multicriteria decision-making (MCDM), methods such as TOPSIS are essential for evaluating and comparing alternatives across multiple criteria. However, traditional normalization techniques often struggle with datasets containing outliers, large va...

  • Review
  • Open Access
3 Citations
3,583 Views
19 Pages

An Overview of Shared Mobility Operational Models in Europe

  • Luka Vidan,
  • Marko Slavulj,
  • Ivan Grgurević and
  • Matija Sikirić

7 April 2025

Climate change is an urgent issue, and the current mindset of private ownership, particularly of private vehicles, needs to shift. Shared mobility is rapidly emerging as a key part of the solution to contemporary transportation challenges, driven by...

  • Article
  • Open Access
1 Citations
994 Views
22 Pages

7 April 2025

In our previous study, we proposed a vision-based ranging algorithm (LRA) that utilized a monocular camera with four lasers (MC4L) for indoor positioning in dark environments. The LRA achieved a positioning error within 2.4 cm using a logarithmic reg...

  • Article
  • Open Access
1,134 Views
25 Pages

Analysis of Building Platform Inhomogeneities in PBF-LB/M Process on Alloy 718

  • Niccolò Baldi,
  • Lokesh Chandrabalan,
  • Marco Manetti,
  • Alessandro Giorgetti,
  • Gabriele Arcidiacono,
  • Paolo Citti and
  • Marco Palladino

7 April 2025

Additive Manufacturing (AM) processes, particularly PBF-LB/M, are considered advantageous due to their flexibility, which allows process engineers to design and fabricate intricate structures both in the prototyping and component manufacturing phases...

  • Article
  • Open Access
1 Citations
2,226 Views
33 Pages

7 April 2025

The educational assessment is an essential task within the educational process. The generation of right and correct assessment content is a determinant process within the assessment. The creation of an automated method of generation similar to a huma...

  • Article
  • Open Access
3 Citations
4,022 Views
27 Pages

7 April 2025

This research paper investigates the integration of sustainable performance metrics into digital maturity models specifically tailored for small and medium-sized manufacturing enterprises (SMMEs), which represent a significant pillar of the Canadian...

  • Review
  • Open Access
7 Citations
3,817 Views
40 Pages

Review of Passive Flow Control Methods for Compressor Linear Cascades

  • Oana Dumitrescu,
  • Emilia-Georgiana Prisăcariu and
  • Valeriu Drăgan

7 April 2025

This paper reviews the evolution of flow control methods for bladed linear cascades, focusing on passive techniques like riblets, grooves, vortex generators (VGs), and blade slots, which have proven effective in reducing drag, suppressing flow separa...

  • Review
  • Open Access
17 Citations
6,357 Views
30 Pages

7 April 2025

Augmented Reality (AR), Virtual Reality (VR), and Mixed Reality (MR) technologies—collectively known as Extended Reality (XR)—have ushered in a new era of immersive and interactive instruction in applied sciences education. This systemati...

  • Article
  • Open Access
4 Citations
3,044 Views
24 Pages

7 April 2025

The increasing adoption of blockchain technology has presented significant challenges in maintaining the security and reliability of smart contracts. This study addresses the problem of identifying security flaws in smart contracts, which may result...

  • Article
  • Open Access
2 Citations
2,972 Views
15 Pages

7 April 2025

This paper introduces a method that can enhance the accuracy and efficiency of point cloud data registration. This method selects the centroid of the point cloud as the feature point and uses the projected distance of this feature point within the dy...

  • Article
  • Open Access
1 Citations
1,334 Views
15 Pages

Deep Learning-Based FSS Spectral Characterization and Cross-Band Migration

  • Lei Gong,
  • Xuan Liu,
  • Pan Zhou,
  • Liguo Wang and
  • Zhiqiang Yang

6 April 2025

Conventional design methodologies for Frequency Selective Surfaces (FSSs) are often plagued by challenges such as difficulties in determining unit cell structures, a plethora of optimization parameters, and substantial computational demands. In respo...

  • Article
  • Open Access
3 Citations
3,291 Views
31 Pages

Large Language Model Based Intelligent Fault Information Retrieval System for New Energy Vehicles

  • Haiyu Zhang,
  • Yinghui Zhao,
  • Boyu Sun,
  • Yaqi Wu,
  • Zetian Fu and
  • Xinqing Xiao

6 April 2025

In recent years, the rapid development of the new energy vehicle (NEV) industry has exposed significant deficiencies in intelligent fault diagnosis and information retrieval technologies, especially in intelligent fault information retrieval, which f...

  • Article
  • Open Access
3 Citations
1,448 Views
17 Pages

Active Gait Retraining with Lower Limb Exoskeleton Based on Robust Force Control

  • Yukio Rosales-Luengas,
  • Sergio Salazar,
  • Saúl J. Rangel-Popoca,
  • Yahel Cortés-García,
  • Jonathan Flores and
  • Rogelio Lozano

6 April 2025

This article addresses the design of a robust inner and outer loop controller for active gait retraining in individuals with leg motor weakness, using a lower limb exoskeleton with elastic joints. The proposed control algorithm for the inner loop is...

  • Article
  • Open Access
1 Citations
1,168 Views
15 Pages

A Simplified Classroom Indoor Air Quality Risk Index: Application in the Mediterranean Region to Support the Enhanced Design of Educational Environments

  • Ruben Daniel Lopez Carreño,
  • Francesc Pardo-Bosch,
  • Stanislav Aidarov,
  • David Boix-Cots and
  • Pablo Pujadas

6 April 2025

The quality of indoor environments within educational settings significantly impacts the health, safety, and comfort of occupants. In this manuscript, a simplified Classroom Indoor Air Quality (CIAQ) Risk Index, aimed at assessing the potential abili...

  • Article
  • Open Access
1 Citations
1,383 Views
22 Pages

6 April 2025

The accurate prediction of the residual strength of defective pipelines is a critical prerequisite for ensuring the safe operation of oil and gas pipelines, and it holds significant implications for the pipeline’s remaining service life and pre...

  • Article
  • Open Access
1 Citations
2,278 Views
25 Pages

6 April 2025

Understanding the characteristics and key driving factors of plant diversity is of great significance for maintaining biodiversity and the ecosystem. Current studies on plant diversity in the Yellow River Delta are limited to local areas; there is a...

  • Article
  • Open Access
859 Views
21 Pages

A Process Decision-Making Method for Planar Machining of Box-Type Components

  • Zhongkun Shi,
  • Meifa Huang,
  • Zhemin Tang,
  • Zecheng Hu and
  • Weihao Hu

6 April 2025

The process of decision-making for machining box-type components plays a crucial role in the technological design of mechanical components. Currently, the selection of process parameters for box-type parts often relies on designers consulting manuals...

  • Review
  • Open Access
10 Citations
3,419 Views
23 Pages

6 April 2025

This review examines the distinct advantages of organic semiconductors over conventional insulating polymers as optically active materials in photonic applications. We analyze the fundamental principles governing their unique optical and electronic p...

  • Article
  • Open Access
1,411 Views
22 Pages

Benchmarking Anomaly Detection Methods for Extracardiac Findings in Cardiac MRI

  • Edgar Pinto,
  • Patrícia M. Costa,
  • Catarina Silva,
  • Vitor H. Pereira,
  • Jaime C. Fonseca and
  • Sandro Queirós

6 April 2025

In cardiac magnetic resonance (MR) imaging, an initial set of sequences is acquired to guide the definition of the subsequent cardiac views. These sequences provide a large field of view, enabling the detection of extracardiac findings (ECFs). Althou...

  • Article
  • Open Access
1 Citations
1,632 Views
17 Pages

Simulation of an M 7.1 Lateral Fault Coastal Earthquake: A Plausible Scenario for Seismic Hazard Assessment in Michoacan, Mexico

  • Ricardo Vázquez Rosas,
  • Jorge Aguirre González,
  • Gerardo León Soto and
  • José Antonio Hernández Servín

6 April 2025

The effects of a synthetic M 7.1 strike lateral earthquake are evaluated at five sites in Michoacan state, western Mexico. In this work, the ground motion simulation was applied using the empirical Green’s function method proposed by Irikura (1...

  • Article
  • Open Access
915 Views
22 Pages

5 April 2025

Implementing video instance segmentation (VIS) to detect, segment, and track targets based on vision system is important research for air cruiser. Large data with high sampling difficulty result in inefficient network training and limit the air cruis...

  • Article
  • Open Access
2 Citations
832 Views
17 Pages

Prediction Model for Compaction Quality of Earth-Rock Dams Based on IFA-RF Model

  • Weiwei Lin,
  • Yuling Yan,
  • Pu Xu,
  • Xiao Zhang and
  • Yichuan Zhong

5 April 2025

The current evaluation models for earth-rock dam compaction quality seldom incorporate parameter uncertainty considerations. Additionally, the existing models frequently demonstrate constrained prediction accuracy and generalization capabilities. To...

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Appl. Sci. - ISSN 2076-3417