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Grain boundary and texture evolution of TiB/Ti–2Al–6Sn titanium matrix composite under electroshocking treatment

Yaya Wu, Yan Wen, Anan Guo, Jian Zhou et al. • Journal of Materials Research and Technology (2023)

This work used electroshocking treatment (EST) plus external loading to regulate the microstructure of titanium matrix composites (TMCs). The external loading was 0.3 MPa. After EST plus external loading with 0.3 MPa, the α was reduced to 2...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.jmrt.2023.10.177

3D Printing parameter optimisation combined with heat treatment for achieving high density and enhanced performance in refractory high-entropy alloys

Deyu Jiang, Miao Luo, Changxi Liu, Yashuo Zhang et al. • Virtual and Physical Prototyping (2025)

In this study, a Ti1.5Nb1Ta0.5Zr1Mo0.5 (TNTZM) high-entropy alloy was fabricated using laser powder bed fusion (LPBF). By integrating 63 sets of parameter trials with machine learning (ML) models, an optimised process window was identified,...

DOAJ Open Access (DOAJ) DOI: 10.1080/17452759.2025.2524524

Physical Properties of Modified Polyphenylene Oxide as a Composite Material for Hydrogen Fuel Cell Stack Enclosure Suitable for Injection Molding

Soo-Lim Lee, Bong-Ju Kim, Seon-Bong Lee • Machines (2022)

There is an increasing need for securing development technology for suitable materials to obtain more productive and lightweight automobile parts, including hydrogen fuel cell stack enclosures. Due to the poor moldability of Poly-Phenylene ...

DOAJ Open Access (DOAJ) DOI: 10.3390/machines10080625

The Biomechanical Characteristics of Swallowing in Tracheostomized Patients with Aspiration following Acquired Brain Injury: A Cross-Sectional Study

Xiao-Xiao Han, Jia Qiao, Zhan-Ao Meng, Dong-Mei Pan et al. • Brain Sciences (2023)

Objectives: Investigate the biomechanical characteristics in tracheostomized patients with aspiration following acquired brain injury (ABI) and further explore the relationship between the biomechanical characteristics and aspiration. Metho...

DOAJ Open Access (DOAJ) DOI: 10.3390/brainsci13010091

Research on 4WS Agricultural Machine Path Tracking Algorithm Based on Fuzzy Control Pure Tracking Model

Chengliang Zhang, Guanlei Gao, Chunzhao Zhao, Lei Li et al. • Machines (2022)

This paper presents a path tracking algorithm based on a fuzzy control pure tracking model for autonomous navigation of 4WS agricultural machines. The aim of this research is to implement path tracking for unmanned 4WS agricultural machiner...

DOAJ Open Access (DOAJ) DOI: 10.3390/machines10070597

Enhanced Energy Recovery in Magnetic Energy-Harvesting Shock Absorbers Using Soft Magnetic Materials

Susana Aberturas, José Luis Olazagoitia, Miguel Ángel García, Antonio Hernando • Magnetochemistry (2023)

In the automobile sector, energy recovery and sustainability are becoming more and more important, and energy-harvesting suspension systems (EHSAs) have a lot of promise to improve vehicle efficiency. This investigation expands on prior wor...

DOAJ Open Access (DOAJ) DOI: 10.3390/magnetochemistry9070189

Effect of Tunnel Ventilation on Hydrogen Dispersion From Leaks in Hydrogen Fuel Cell Trucks

Limin Geng, Shiyu Shan, Zongxue Yan, Nan Gao et al. • Energy Science & Engineering (2026)

ABSTRACT The widespread adoption of hydrogen fuel cell trucks (HFCTs) depends on addressing hydrogen safety concerns, particularly in confined spaces like tunnels, where effective ventilation is crucial to prevent accumulation during leaks....

DOAJ Open Access (DOAJ) DOI: 10.1002/ese3.70547

Development of Representative Urban Driving Cycles for Congested Traffic Conditions in Guayaquil Using Real-Time OBD-II Data and Weighted Statistical Methods

Roberto López-Chila, Henry Abad-Reyna, Joao Morocho-Cajas, Pablo Fierro-Jimenez • Vehicles (2025)

Standardized driving cycles such as the FTP-75 fail to represent traffic conditions in cities like Guayaquil, where high congestion and varied driving behaviors are not captured by external models. This study aimed to develop representative...

DOAJ Open Access (DOAJ) DOI: 10.3390/vehicles7030095

Flexural Behaviour of Corroded RC Beams Strengthened with CFRCM: Refined Modelling, Parametric Analysis, and Design Assessment

Chaoqun Zeng, Jing-Pu Tang, Liangliang Wei, Miaochang Zhu et al. • Buildings (2026)

Reinforced concrete (RC) beams strengthened with carbon-fabric-reinforced cementitious matrix (CFRCM) systems have shown potential for restoring flexural performance, yet their effectiveness under different corrosion levels remains insuffic...

DOAJ Open Access (DOAJ) DOI: 10.3390/buildings16020377

A Proactive Collision Avoidance Model for Connected and Autonomous Vehicles in Mixed Traffic Flow

Guojing Hu, Kun Li, Weike Lu, Ouchan Chen et al. • World Electric Vehicle Journal (2025)

Collision avoidance between vehicles is a great challenge, especially in the context of mixed driving of connected and autonomous vehicles (CAVs) and human-driven vehicles (HVs). Advances in automation and connectivity technologies provide ...

DOAJ Open Access (DOAJ) DOI: 10.3390/wevj16070394

Hybrid Dynamic Traffic Model for Freeway Flow Analysis Using a Switched Reduced-Order Unknown-Input State Observer

Yuqi Guo, Bin Li, Matthew Daniel Christie, Zongzhi Li et al. • Sensors (2020)

This paper introduces a new methodology for reconstructing vehicle densities of freeway segments by utilizing the limited data collected by traffic-counting sensors and developing a macroscopic traffic stream model formulated as a switched ...

DOAJ Open Access (DOAJ) DOI: 10.3390/s20061609

TEMPERATURE OF SLIDING SURFACES OF INTERNAL COMBUSION ENGINES BY THE TEMPER COLORS OF WEAR PARTICLES

M. G. El-Sherbiny, Farouk Hammad, M. M. Youssef, M. K. Mohamed et al. • Journal of the Egyptian Society of Tribology (2026)

The present study examines the temper colors of the wear particles retained by the oil filter by optical microscope. The temperature of the sliding surfaces inside engines can be determined by the temper colors of the wear particles. Becaus...

DOAJ Open Access (DOAJ) DOI: 10.21608/jest.2026.481011.1158

Dependence of Freeze-Out Parameters on Collision Energies and Cross-Sections

Muhammad Waqas, Atef AbdelKader, Muhammad Ajaz, Abdel Nasser Tawfik et al. • Universe (2023)

We analyzed the transverse momentum spectra (pT) reported by the NA61/SHINE and NA49 experiments in inelastic proton–proton (pp) and central Lead–Lead (Pb−Pb), Argon–Scandium (Ar−Sc), and Beryllium–Beryllium (Be−Be) collisions with the Blas...

DOAJ Open Access (DOAJ) DOI: 10.3390/universe9010044

Influence of size effect on springback and thickness distribution of hydroformed ultra-thin metallic bellows

Feng Hong, Xinsheng Wang, Dong Lu, Tingxi Meng et al. • Journal of Materials Research and Technology (2026)

Ultra-thin metallic bellows are critical components in new energy vehicles and aerospace applications, yet their forming precision is significantly challenged by size effects when the wall thickness is reduced to the mesoscopic scale. This ...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.jmrt.2026.09.159

Evaluation of Leakage Currents of Semiconductor Packages Due to High-Voltage Stress Under an Immersion Cooling Environment

Kyuhae Min, Taejun Kang, Tae Yeob Kang, Jae-Bum Pyo • Applied Sciences (2025)

As data centers expand, immersion cooling systems are gaining attention for thermal management of memory devices. To enable widespread adoption, it is essential to evaluate the impact of coolants on the reliability of memory packages. In th...

DOAJ Open Access (DOAJ) DOI: 10.3390/app15094668