Xinyue Dong¹, Wei Zhao¹, Jingying Wang^1,2,*, Shiyue Zhang¹, Yue Zhou³, Xinglian Yang¹, Chunhian Lee^1,3

FDMP-Fluid Dynamics & Materials Processing, Vol.22, No.1, 2026, DOI:10.32604/fdmp.2026.076238 - 06 February 2026

Abstract For hypersonic air-breathing vehicles, the V-shaped leading edges (VSLEs) of supersonic combustion ramjet (scramjet) inlets experience complex shock interactions and intense aerodynamic loads. This paper provides a comprehensive review of flow characteristics at the crotch of VSLEs, with particular focus on the transition of shock interaction types and the variation of wall heat flux under different freestream Mach numbers and geometric configurations. The mechanisms governing shock transition, unsteady oscillations, hysteresis, and three-dimensional effects in VSLE flows are first examined. Subsequently, thermal protection strategies aimed at mitigating extreme heating loads are reviewed, emphasizing their relevance to More >

Yong Li, Yuxuan Chen^*, Jiahui He, Guowei He, Chenxi Dai, Jingjing Tong, Wenting Lei

Energy Engineering, Vol.123, No.1, 2026, DOI:10.32604/ee.2025.069257 - 27 December 2025

Abstract Ensuring reliable power supply in urban distribution networks is a complex and critical task. To address the increased demand during extreme scenarios, this paper proposes an optimal dispatch strategy that considers the coordination with virtual power plants (VPPs). The proposed strategy improves system flexibility and responsiveness by optimizing the power adjustment of flexible resources. In the proposed strategy, the Gaussian Process Regression (GPR) is firstly employed to determine the adjustable range of aggregated power within the VPP, facilitating an assessment of its potential contribution to power supply support. Then, an optimal dispatch model based on More > Graphic Abstract

Wenwen Zhang^*, Changgui Lei

Chalcogenide Letters, Vol.22, No.12, pp. 1031-1045, 2025, DOI:10.15251/CL.2025.2212.1031 - 08 December 2025

Abstract The development of quick, accurate, and field-deployable detection techniques is required due to the growing environmental pollution caused by heavy metals, especially lead (Pb) and cadmium (Cd). In this work, bismuth silver sulfide (AgBiS₂) nanoparticles are synthesized using a simple hydrothermal method aided by biomolecules, and they are used as a new modifier forPb(II) and Cd(II) simultaneous electrochemical detection using screen-printed electrodes (SPEs). After thorough material characterisation, pure, highly crystalline, quasi-spherical AgBiS₂ nanoparticles produced with an average diameter of around 20 nm. The AgBiS₂/SPE sensor demonstrated a threefold decrease in charge transfer resistance, indicating a considerable improvement More >

Wenjie Qiu¹, Jiyuan Wang², Zheng Zhang^3,*

Journal of Psychology in Africa, Vol.35, No.6, pp. 815-823, 2025, DOI:10.32604/jpa.2025.070151 - 30 December 2025

Abstract This study examined emotional exhaustion and family support in the relationship between leader workaholism and employee work fatigue. The participants were 408 employed adults (74% female, age range 25 to 27 years) across five industries: sales (31.65%), finance (25.32%), education (20.25%), public administration (12.66%), and technology (10.13%), from 79 work teams in China. Survey data were collected at three time points over a three-month period. The results from structural equation modeling indicated that leader workaholism was associated with higher employee work fatigue. Emotional exhaustion mediated the relationship, contributing to higher levels of employee fatigue. Furthermore, More >

Xin Guo^*

Journal of Psychology in Africa, Vol.35, No.6, pp. 825-832, 2025, DOI:10.32604/jpa.2025.069822 - 30 December 2025

Abstract Core Self-Evaluations are linked to career success, yet the person-environment factor mechanisms underlying this relationship remain unclear. This meta-analysis (N = 135,809) synthesized the evidence on whether person task performance and LMX environment mediate the effects of CSE on career success both objective (salary) and subjective (job satisfaction) indicators. This study employed meta-analytic structural equation modeling (MASEM) to test direct and indirect pathways. Results integrating tournament theory and LMX theory show that CSE positively relates to task performance and LMX, both of which in turn relate to salary and job satisfaction. A significant sequential mediation More >

Yungui Guo^*, Xuan Fan

Journal of Psychology in Africa, Vol.35, No.6, pp. 791-796, 2025, DOI:10.32604/jpa.2025.067238 - 30 December 2025

Abstract This study examined the moderating role of employees’ learning orientation on the relationship between leaders’ artificial intelligence symbolization behavior (LAISB), employees’ attitude towards digital transformation (ATDT), and enterprise digital transformation. The sample consisted of 261 employees from five enterprises in China (female = 34.5%; primary industry includes the internet and transportation; mean age = 42.51 years, SD = 8.63 years; bachelor’s degree or above = 72.8%). The results of structural equation modeling and simple slope test indicated that LAISB predicted higher enterprise digital transformation, with ATDT partial mediation. Furthermore, employees’ learning orientation weakened the relationship More >

S. Çelik^a,*, M. Temiz^b

Chalcogenide Letters, Vol.22, No.1, pp. 89-96, 2025, DOI:10.15251/CL.2025.221.89

Abstract In this study, PbZnS thin films with varying concentrations of lead (Pb) and zinc (Zn) were successfully produced using the spray pyrolysis method. The structural, optical and surface properties of the films were systematically investigated as a function of the Pb/Zn ratio. Xray diffraction (XRD) analysis confirmed the polycrystalline nature of the films, showing a cubic zinc blende structure with improved crystallinity as Pb content increased. Initially, with the increase in Pb concentration, larger crystallite sizes and decreased microstress were observed, but with the increase of Pb addition, the formation of secondary phases and the… More >

N. F. Rozi^a, L. Hasnimulyati^a, A. Azuraida^b,*

Chalcogenide Letters, Vol.22, No.1, pp. 57-76, 2025, DOI:10.15251/CL.2025.221.57

Abstract This paper studies on the theoretical ionizing radiation shielding parameter for the glass of {[(TeO₂)_0.7 (B₂O₃)_0.3]_0.7 [ZnO]_0.3}_1-x {CeO₂}_x by using two software; WinXCOM and PhyX software, which investigate the ability of cerium oxide. The investigation revealed that the 5CeZBTe glass sample, which included the greatest concentration of CeO₂ (0.05 mol), showed the greatest linear attenuation coefficient (LAC) and least values in Half Value Layer (HVL) and Mean Free Path (MFP). These results suggest that 5CeZBTe glass has significant potential as an alternative to traditional lead-based radiation shielding, offering a safer environment for both patients and healthcare professionals in More >

M. R. S. Nasuha^a,*, H. Azhan^b,c, L. Hasnimulyati^c, W. A. W. Razali^c, Y. Norihan^c

Chalcogenide Letters, Vol.22, No.1, pp. 23-31, 2025, DOI:10.15251/CL.2025.221.23

Abstract The need for effective shielding materials has grown as radiation-based technologies have been more widely used. Glasses doped with rare earth elements like neodymium oxide, are promising candidates due to their enhanced radiation attenuation properties. Using Phy-X software, this research examines how neodymium oxide doping affects the shielding properties of yttrium lead borotellurite glass. X-ray diffraction confirmed the amorphous structure, while density measurements showed increased density with neodymium oxide addition. The Phy-X software calculated radiation shielding parameters for gamma energies from 10^⁻³ to 10^⁵ MeV. The results demonstrate that neodymium oxide improves gamma irradiation attenuation and More >

D. A. Adu-Boadu^a, M. Paal^a, M. B. Mensah^b, I. Nkrumah^a,*, R. Y. Tamakloe^a, F. K. Ampong^a, R. K. Nkum^a, F. Boakye^a

Chalcogenide Letters, Vol.22, No.7, pp. 603-614, 2025, DOI:10.15251/CL.2025.227.603

Abstract Cd_1-xPb_xSe (0≤ x ≤ 1) thin films with values of x = 0, 0.2, 0.4, 0.5 and 1, have been deposited by chemical bath technique for photovoltaic application. The deposition temperature, time and pH of the reactive solutions were 80℃, 150 min and 11 respectively. The XRD results confirmed the polycrystalline nature of all the films. It also showed that all the films exist in face centered cubic structures. There were no pure phases of CdSe and PbSe identified in the XRD results of the ternary compounds. The average grain sizes determined for each sample were… More >