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Three-dimensional simulations of strong ground motion in the Sichuan basin during the Wenchuan earthquake

A three-dimensional model of the Sichuan basin was established by incorporating the Quaternary Chengdu plain, the near surface sediment, the crystalline basement, the 1D crustal velocity structure, and the realistic surface topography of the basin. Based on this model, and by using the spectral-element method and a parallel computing technique, the low frequency (0.05–0.5 Hz) wave ...

On a Stević-Sharma operator from Hardy spaces to the logarithmic Bloch spaces

Let H ( D ) denote the space of all analytic functions on the unit disc D of the complex plane ℂ, ψ 1 , ψ 2 ∈ H ( D ) , and φ be an analytic self-map of D . In this paper, we characterize the boundedness and compactness of a Stević-Sharma operator T ψ 1 , ψ 2 , φ from Hardy spaces H p (with 1 ≤ p < ∞ ) to the logarithmic Bloch spaces B log . MSC: 47B38, 47B33, 46E15, 30H10.

Fitting Characteristics of N95 Filtering-Facepiece Respirators Used Widely in China

Background Millions of people rely on N95 filtering facepiece respirators to reduce the risk of airborne particles and prevent them from respiratory infections. However, there are no respirator fit testing and training regulations in China. Meanwhile, no study has been conducted to investigate the fit of various respirators. The objective of this study was to investigate whether ...

On a Li-Stević Integral-Type Operators between Different Weighted Bloch-Type Spaces

Let be an analytic self-map of the unit disk , let be the space of analytic functions on , and let . Recently, Li and Stević defined the following operator: , on . The boundedness and compactness of the operator between two weighted Bloch-type spaces are investigated in this paper.

Digital 3-D Headforms Representative of Chinese Workers

Headforms are useful for designing and testing various types of personal protective equipment used to protect millions of workers from occupational hazards in China. Although the Chinese national standard of head-and-face dimensions for adults was first published in 1981, headforms based on those dimensions were never developed. In 2006, an anthropometric survey of 3000 Chinese ...