We fabricated Au-Cu₂O core-shell octahedra, cuboctahedra, and nanocubes having sizes of 90-220 nm using 50 nm octahedral cores. The smaller particle sizes minimize the strong light scattering features from the Cu₂O shells and enable the surface plasmon resonance (SPR) absorption band of the gold cores to be clearly identified. Beyond a lower shell thickness limit, the SPR band positions of the ...

[1] A simple numerical model of extension in icy satellite shells is developed. Thinning of the ice weakens the shell, promoting further extension. If lateral flow in the lower part of the shell is unimportant, extension is opposed and wide rifts are generated; if lateral flow is rapid, localized extension is favored and narrow rifts are produced. Thick shells or high strain rates favor the dev...

Cylindrical shells made of composite material form one the major structural parts in aerospace structures. Many them are acoustically thick, which ring frequencies much higher than their critical frequencies. In this work, sound radiation behaviour thick cylinders is presented. Based on and acoustic wave number diagrams, modal average resistances frequency band interest theoretically determined...

The formulation and analytic solution of a new mathematical model with constitutive curvature for analysis tunnel ventilation shaft wall is proposed. Based on the Mindlin–Reissner theory thick shells, this also takes into account shell considers an expression shear correction factor variable (αn) in terms thickness (h) radius (R). main advantage proposed that it has possibility to analyze thin,...