The separation of variables method was successfully used to resolve the spherically symmetric dynamic thermoelastic problem for a spherically isotropic elastic hollow sphere. Use of the integral transform can be avoided by means of this method, which is also appropriate for an arbitrary thickness hollow sphere subjected to arbitrary thermal and mechanical loads. Numerical results are presented to show the dynamic stress responses in the uniformly heated hollow spheres.
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http://dx.doi.org/10.1631/jzus.2003.0008 | DOI Listing |
Biomed Mater
January 2025
Department of Emergency, Shandong University, Department of Emergency, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, PR China, Jinan, Shandong, 250100, CHINA.
Metallic oxides especially lithium and titanium oxides are well known for their osteogenic properties. When combined in the right proportions, metallic oxides can have an even greater impact. However, releasing ions from oxides can lead to oxidative stress, which is harmful to cell growth.
View Article and Find Full Text PDFNano Lett
January 2025
The Institute for Advanced Studies, Wuhan University, Wuhan 430072, China.
Robust interfaces in anodes play a crucial role in boosting sodium-ion battery (SIB) performance. However, the fragile interfaces constructed by a two-step synthesis or artificial stack are prone to be destroyed during the charging/discharging processes, which significantly reduces the lifetime of SIBs. Here, a facile construction strategy is developed to produce robust interfaces in hollow sphere-like CoSe/nitrogen-doped carbon (HS-CoSe/NC) using intrinsic Co, N, C in metal-organic framework as precursors, which enhance the electron/ion diffusion kinetics.
View Article and Find Full Text PDFLangmuir
January 2025
College of Textile Science and Engineering, Jiangnan University, 1800 Lihu Road, 214122 Wuxi, P. R. China.
In the realm of zinc-air batteries, high bifunctional catalytic efficacy is intimately tied to the evaluation of catalysts. Consequently, the pursuit of proficient bifunctional catalysts that can efficiently catalyze both the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) remains a paramount objective in this research area. In this study, the spiny cobalt tetroxide (CoO) encapsulated hollow carbon spheres (HCSs) are constructed by anchoring CoO onto HCS via hydrothermal or annealing treatment.
View Article and Find Full Text PDFEnviron Res
January 2025
College of Ecology and Environment, Anhui Normal University, 189 South of Jiuhua Road, Wuhu, Anhui, 241002, P.R. China; State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Jiangsu, 210023, P.R. China. Electronic address:
The recovery of precious metal ions (PMI) from wastewater has great significances from both economic and environmental perspectives. However, current recovery methods face limitations, including low efficiency and selectivity, as well as challenges in practical applications. In this study, hollow N-doped carbon spheres (HNC) are proved to be promising for improving anionic AuCl and PdCl recovery via the curvature effect, outperforming non-curved carbon (commercial active carbon and carbon nanosheet) due to their unique curvature effect.
View Article and Find Full Text PDFJ Colloid Interface Sci
January 2025
State Key Laboratory Base for Eco-chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042 China.
The dry reforming of methane (DRM) could convert CH and CO into syngas, offering potential for greenhouse gas mitigation. However, DRM catalyst sintering and carbon deposition remain major obstacles. In this study, a highly dispersed PtNi alloy@Zr-doped 3D hollow flower-like MgAlO (AMO) spheres was prepared through a hydrophobic driving strategy.
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