Thickness Effect of 2195 Al-Li Alloy Friction Stir Weld Fracture Toughness.

For damage tolerance design in engineering components, the fracture toughness value, , of the material is essential. However, obtaining specimens of sufficient thickness from stir friction welded plates is challenging, and often, the experimental test values do not meet the necessary criteria, preventing the experimental fracture toughness, , from being recognized as plane strain fracture toughness . The fracture toughness of 2195 Al-Li alloy welding seams with different thicknesses was measured on the forward and backward sides.

The role of exogenous hydrogen sulfide in mitigating cadmium toxicity in plants: A comprehensive meta-analysis.

Reducing the accumulation of cadmium (Cd) and mitigating its toxicity are pivotal strategies for addressing Cd pollution's threats to agriculture and human health. Hydrogen sulfide (HS) serves as a signaling molecule, playing a crucial role in plant stress defense mechanisms. Nevertheless, a comprehensive assessment of the impact of exogenous HS on plant growth, antioxidant properties, and gene expression under Cd stress remains lacking.

Overexpression of Improved Cadmium Accumulation and Tolerance in Tobacco ( L.).

Cadmium (Cd)-induced oxidative stress detrimentally affects hyperaccumulator growth, thereby diminishing the efficacy of phytoremediation technology aimed at Cd pollution abatement. In the domain of plant antioxidant mechanisms, the role of glutathione peroxidase (GPX) in conferring Cd tolerance to tobacco () remained unclear. Our investigation employed genome-wide analysis to identify 14 genes in tobacco, revealing their organization into seven subgroups characterized by analogous conserved domain patterns.

Self-standing 2D/2D CoO@FeOOH nanosheet arrays as promising catalysts for the oxygen evolution reaction.

The rational design of a highly efficient oxygen evolution reaction (OER) is crucial for the practical applications of water electrolysis. Herein, a hybrid CoO@FeOOH/NF electrode was fabricated by loading FeOOH sheets on the surface of CoO nanosheet arrays a newly developed chemical deposition protocol. The decoration of FeOOH on CoO nanosheet arrays not only endows a strong electronic interaction between the two components but also offers sufficient active sites for the OER process.