Xuecai Han, Yilin Tong, Jiaqi Bao, Kan Yu^*

Chalcogenide Letters, Vol.23, No.1, 2026, DOI:10.32604/cl.2026.075604 - 26 January 2026

Abstract Chalcogenide glasses in the Ge-Se-Te system possess wide infrared transparency and strong optical nonlinearity, yet the microscopic origin of their vibrational behavior remains unclear. Using ab initio calculations, we analyzed Raman-active modes in GeSe_xTe_4−x (x = 0–4) tetrahedra, edge-sharing tetrahedra, and ethane-like Ge₂Se_2xTe_6−2x (x = 0–3) clusters. For GeSe_xTe_4−x (x = 0–4) tetrahedra, the symmetric stretching vibrations exhibit two families: Ge-Se-dominated and Ge-Te-dominated modes, both showing monotonic redshifts as the number of same-type bonds increases. In edge-sharing tetrahedra, the Ge-Ch-Ge-Ch (Ch = Se or Te) four-membered-ring breathing frequency decreases with higher Te content, and a comparable softening is More >

Samira Rastbod¹, Mehdi Jahangiri^2,*, Behrang Moradi¹, Haleh Nazari¹

Energy Engineering, Vol.123, No.1, 2026, DOI:10.32604/ee.2025.070089 - 27 December 2025

Abstract Curtain wall systems have evolved from aesthetic façade elements into multifunctional building envelopes that actively contribute to energy efficiency and climate responsiveness. This review presents a comprehensive examination of curtain walls from an energy-engineering perspective, highlighting their structural typologies (Stick and Unitized), material configurations, and integration with smart technologies such as electrochromic glazing, parametric design algorithms, and Building Management Systems (BMS). The study explores the thermal, acoustic, and solar performance of curtain walls across various climatic zones, supported by comparative analyses and iconic case studies including Apple Park, Burj Khalifa, and Milad Tower. Key challenges—including… More > Graphic Abstract

Hairul Aysa Abdul Halim Sithiq^1,*, Liyana Shuib^1,*, Muneer Ahmad², Chermaine Deepa Antony³

CMC-Computers, Materials & Continua, Vol.86, No.1, pp. 1-25, 2026, DOI:10.32604/cmc.2025.067781 - 10 November 2025

Abstract Honeycombing Lung (HCL) is a chronic lung condition marked by advanced fibrosis, resulting in enlarged air spaces with thick fibrotic walls, which are visible on Computed Tomography (CT) scans. Differentiating between normal lung tissue, honeycombing lungs, and Ground Glass Opacity (GGO) in CT images is often challenging for radiologists and may lead to misinterpretations. Although earlier studies have proposed models to detect and classify HCL, many faced limitations such as high computational demands, lower accuracy, and difficulty distinguishing between HCL and GGO. CT images are highly effective for lung classification due to their high resolution,… More >

Rui Yang^*

The International Conference on Computational & Experimental Engineering and Sciences, Vol.34, No.1, pp. 1-1, 2025, DOI:10.32604/icces.2025.010698

Abstract This study employs molecular dynamics (MD) simulations to comparatively investigate the mechanical enhancement mechanisms of glass fiber-reinforced concrete (GFRC) and basalt fiber-reinforced concrete (BFRC). Amorphous models of glass fiber (GF) and basalt fiber (BF), along with calcium silicate hydrate (C-S-H), were constructed using the ClayFF force field in LAMMPS. The interfacial transition zone (ITZ), atomic bonding characteristics, stress distribution, and tensile failure processes were systematically analyzed. Key findings reveal that BF exhibits a denser atomic network structure with higher coordination numbers, driven by the bridging role of Fe and Mg atoms. BFRC demonstrates significantly stronger More >

P. Kaushik^a,*, A. Devi^b, H. Singh^a

Chalcogenide Letters, Vol.22, No.3, pp. 197-204, 2025, DOI:10.15251/CL.2025.223.197

Abstract The structural properties of bulk as well as thin films of nanostructured Bi₁Te₁₅Se_84-x Pb_x (0 ≤ x ≤ 8) glassy alloys has been studied in this paper. Conventional melt quenching method is employed to prepare the samples of Bi₁Te₁₅Se_84-x Pb_x (0 ≤ x ≤ 8) alloys. Thin films with thickness of approximately 158nm of the obtained bulk compositions were deposited on dry cleaned glass substrates by thermal evaporation technique. The structural characterization was carried out using XRD and SEM. Energy dispersive X-ray spectroscopy (EDX) indicates that samples are nearly stoichiometric. X-ray diffraction patterns indicate that they are 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 >

A. Z. Mahmoud^a,b, L. G. Amin^c,*, S. A. Mahmoud^d, M. M. Bashier^e, M. E. M. Eisac^e, N. Dhahri^c, A. Mohamed^e, A. A. Al-Dumiri^c, S. E. I. Yagoub^c, M. A. Abdel-Rahim^b

Chalcogenide Letters, Vol.22, No.4, pp. 441-450, 2025, DOI:10.15251/CL.2025.224.441

Abstract The electrical and structural characteristics of Bi_xSe_100-x glasses (where x=5, 10, 15, and 25 at. %) were systematically investigated. Using the traditional Quenching of melts process, the amorphous Bi_xSe_100-x materials were created. Thin films of Bi_xSe_100-x have formed onto ultrasonically glass substrates that have been cleaned using thermal evaporation in a vacuum of approximately 10^-5 Torr. Here we show and discuss the results of four bulk glasses of Bi_xSe_100-x (where x=5, 10, 15, and 25 at. %) that were subjected to differential thermal analysis (DTA) under non-isothermal conditions. For the compositions under consideration, five separate methods were used More >

S. Othman^a, Y. H. Lua^b, E. S. Sazali^a,, Y. S. Yap^b,, R. Hisam^c

Chalcogenide Letters, Vol.22, No.5, pp. 451-459, 2025, DOI:10.15251/CL.2025.225.451

Abstract High-performance glass-ceramics are increasingly explored for their suitability in high-frequency dielectric applications, presenting a significant challenge in materials science. A primary focus has been allocated to investigating borotellurite glasses operating at frequencies below 15 MHz. Borotellurite glasses with the composition 69TeO_₂-10B_₂O₃-10PbO-10ZnO-1Er_₂O₃ were fabricated via the melt-quenching method. This study examines the effects of heat treatment durations (1–24 hours) on these glasses. Variations in density, molar volume, structure, and dielectric properties were attributed to changes in non-bridging oxygen bonding resulting from the heat treatments. X-ray diffraction analysis confirmed the amorphous nature of the as-quenched glass. Morphological changes More >

Ashwini Bhat¹, Nagaraj N. Katagi¹, M. C. Gowrishankar², Manjunath Shettar^2,*

CMC-Computers, Materials & Continua, Vol.85, No.2, pp. 2715-2728, 2025, DOI:10.32604/cmc.2025.069842 - 23 September 2025

Abstract This research explores the water uptake behavior of glass fiber/epoxy composites filled with nanoclay and establishes an Artificial Neural Network (ANN) to predict water uptake percentage from experimental parameters. Composite laminates are fabricated with varying glass fiber and nanoclay contents. Water absorption is evaluated for 70 days of immersion following ASTM D570-98 standards. The inclusion of nanoclay reduces water uptake by creating a tortuous path for moisture diffusion due to its high aspect ratio and platelet morphology, thereby enhancing the composite’s barrier properties. The ANN model is developed with a 3–4–1 feedforward structure and learned… More >