Ibrahim Yahaya Garta, William Eric Manongga, Su-Wen Huang, Rung-Ching Chen^*

CMC-Computers, Materials & Continua, Vol.85, No.3, pp. 4457-4471, 2025, DOI:10.32604/cmc.2025.067149 - 23 October 2025

Abstract Unlike the detection of marked on-street parking spaces, detecting unmarked spaces poses significant challenges due to the absence of clear physical demarcation and uneven gaps caused by irregular parking. In urban cities with heavy traffic flow, these challenges can result in traffic disruptions, rear-end collisions, sideswipes, and congestion as drivers struggle to make decisions. We propose a real-time detection system for on-street parking spaces using YOLO models and recommend the most suitable space based on KD-tree search. Lightweight versions of YOLOv5, YOLOv7-tiny, and YOLOv8 with different architectures are trained. Among the models, YOLOv5s with SPPF… More >

Mahim Masfikun Hannan, Deng’an Cai^*, Xinwei Wang

Journal of Polymer Materials, Vol.42, No.3, pp. 873-891, 2025, DOI:10.32604/jpm.2025.064978 - 30 September 2025

Abstract This study investigates the low-velocity impact and post-impact flexural properties of 3D integrated woven spacer composites, focusing on their orthotropic behavior when tested along two principal directions, i.e., warp (X-type) and weft (Y-type) directions. The same composite material was tested in these orientations to evaluate the differences in impact resistance and residual bending strength. Specimens were fabricated via vacuum-assisted molding and tested at 2, 3, 5, and 7 J impact energies using an Instron Ceast 9350 drop-weight impact testing machine, in accordance with ASTM D7136. Post-impact flexural tests were performed using a four-point bending method… More >

Hongwei Ma¹, Yingqian Tian^2,*, Fuzhang Wang^3,*, Quanfu Lou⁴, Lijuan Yu⁴

CMES-Computer Modeling in Engineering & Sciences, Vol.144, No.3, pp. 3419-3432, 2025, DOI:10.32604/cmes.2025.070791 - 30 September 2025

Abstract This study introduces a novel single-layer meshless method, the space-time collocation method based on multiquadric-radial basis functions (MQ-RBF), for solving the Benjamin-Bona-Mahony-Burgers (BBMB) equation. By reconstructing the time variable as a space variable, this method establishes a combined space-time structure that can eliminate the two-step computational process required in traditional grid methods. By introducing shape parameter-optimized MQ-RBF, high-precision discretization of the nonlinear, dispersive, and dissipative terms in the BBMB equation is achieved. The numerical experiment section validates the effectiveness of the proposed method through three benchmark examples. This method shows significant advantages in computational efficiency, More >

Youlong Lyu^1,2,*, Ying Chu³, Qingpeng Qiu³, Jie Zhang^1,2, Jutao Guo⁴

CMC-Computers, Materials & Continua, Vol.85, No.2, pp. 3393-3418, 2025, DOI:10.32604/cmc.2025.068157 - 23 September 2025

Abstract In intelligent manufacturing processes such as aerospace production, computer numerical control (CNC) machine tools require real-time optimization of process parameters to meet precision machining demands. These dynamic operating conditions increase the risk of fatigue damage in CNC machine tool bearings, highlighting the urgent demand for rapid and accurate fault diagnosis methods that can maintain production efficiency and extend equipment uptime. However, varying conditions induce feature distribution shifts, and scarce fault samples limit model generalization. Therefore, this paper proposes a causal-Transformer-based meta-learning (CTML) method for bearing fault diagnosis in CNC machine tools, comprising three core modules:… More >

Mohamed Gamal^1,#, Hamdy Ashour^1,#, Omar Huzayyin², Maran Marimuthu³, Ghulam E Mustafa Abro^4,*, Lina Mohamed¹

FDMP-Fluid Dynamics & Materials Processing, Vol.21, No.8, pp. 2027-2046, 2025, DOI:10.32604/fdmp.2025.067678 - 12 September 2025

Abstract Atrium spaces, common in modern construction, provide significant fire safety challenges due to their large vertical openings, which facilitate rapid smoke spread and reduce sprinkler effectiveness. Traditional smoke management systems primarily rely on make-up air to replace the air expelled through vents. Inadequate calibration, particularly with air velocity, can worsen fire conditions by enhancing oxygen supply, increasing soot production, and reducing visibility, so endangering safe evacuation. This study investigates the impact of make-up air velocity on smoke behaviour in atrium environments through 24 simulations performed using the Fire Dynamics Simulator (FDS). Scenarios include various fire… More >

Chuxin Wang, Qi Wu, Zenong Fang, Chang Liu, Guoguang Li, Ye Wang, Hongxing Zhang^*, Jianyin Miao

Frontiers in Heat and Mass Transfer, Vol.23, No.4, pp. 1261-1280, 2025, DOI:10.32604/fhmt.2025.066473 - 29 August 2025

Abstract With the development of space-based remote sensing and deep space exploration technology, higher standards for temperature stability and uniformity of payloads have been proposed to spacecraft thermal control systems. As an efficient two-phase heat transfer device with active temperature control capabilities, the loop heat pipe (LHP) can be widely applied in spacecraft thermal control systems to achieve reliable temperature control under various operating modes and complex space thermal environments. This paper analyzes the fundamental theories of thermal switch-controlled, reservoir temperature-controlled, and bypass valve-controlled LHPs. The focus is on the theories and methods of achieving high-precision… More >

Ziqiang Man¹, Lei Zhao², Zheng Tao¹, Shiming Cheng², Wei Yan¹, Gaoyue Zhong¹, Yu Lu¹, Wenming Zhang³, Li Zhang^3,*

Energy Engineering, Vol.122, No.9, pp. 3555-3572, 2025, DOI:10.32604/ee.2025.067027 - 26 August 2025

Abstract With the rapid integration of renewable energy sources, modern power systems are increasingly challenged by heightened volatility and uncertainty. Doubly-fed variable-speed pumped storage units (DFVS-PSUs) have emerged as promising technologies for mitigating grid oscillations and enhancing system flexibility. However, the excitation converters in DFVS-PSUs are prone to significant issues such as elevated common-mode voltage (CMV) and neutral-point voltage (NPV) fluctuations, which can lead to electromagnetic interference and degrade transient performance. To address these challenges, an optimized virtual space vector pulse width modulation (OVSVPWM) strategy is proposed, aiming to suppress CMV and NPV simultaneously through coordinated… More >

Nurfarahin Roslan¹, Massoomeh Hedayati Marzbali^1,*, Aldrin Abdullah¹, Ang See May²

Revue Internationale de Géomatique, Vol.34, pp. 553-567, 2025, DOI:10.32604/rig.2025.066073 - 06 August 2025

Abstract Urban green spaces play a crucial role in improving the well-being of city dwellers, offering recreational benefits that contribute to physical health. However, challenges remain in ensuring these spaces are distributed equitably and are accessible to all. This research examines the distribution and accessibility of green spaces in Bayan Lepas, Penang, Malaysia. The study focuses on evaluating three key factors: (1) the uniformity of green space distribution in the area, (2) the proportion of residents who can access green spaces within a 300-m walk, and (3) the identification of regions that lack sufficient green spaces,… More > Graphic Abstract

Aqeel Shah Abdul Halim Shah^1,2, Nafisah Khalid^1,*, Abdul Rauf Abdul Rasam¹

Revue Internationale de Géomatique, Vol.34, pp. 603-617, 2025, DOI:10.32604/rig.2025.065369 - 06 August 2025

Abstract Urban green spaces (UGS) play a crucial role in promoting ecological, social, and environmental sustainability. UGS play a key role in reducing land surface temperature (LST) in rapidly urbanizing areas, thereby mitigating the urban heat island (UHI) effect. This paper conducts an extensive analysis of land use, Normalized Difference Vegetation Index (NDVI), and LST to examine the influence of the environmental landscapes of Shah Alam and Putrajaya from 2014 to 2023 on the variation of LST. In 2014, NDVI values in Shah Alam ranged from 0.35 to 0.50, fluctuating to 0.32 to 0.48 in 2023.… More > Graphic Abstract

Longmei Wang¹, Jiawen Liu¹, Lei Lu^2,*

Journal of Psychology in Africa, Vol.35, No.3, pp. 309-317, 2025, DOI:10.32604/jpa.2025.068580 - 31 July 2025

Abstract This study examined the relationship between inclusive leadership and subordinates’ upward voice, focusing on the mediating role of psychological safety and the moderating role of collectivism. Data were collected from 284 subordinates and supervisors across 11 organizations in China in three cross-lagged waves. Structural equation modeling results indicated that inclusive leadership was associated with subordinates’ upward voice via psychological safety. Moreover, collectivism strengthens the association between inclusive leadership and upward voice via psychological safety, leading to a higher upward voice. These findings highlight the importance of inclusive leadership in fostering an environment that promotes open More >