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Purpose
This study aimed to investigate the prevalence and risk factors for myopia and high myopia among Han and Uyghur students in Xinjiang, China.
Methods
This cross‐sectional study with a multistage, stratified cluster sampling method was completed in Xinjiang, China. Visual acuity and noncycloplegic refraction were measured. The crude and sex‐ and age‐adjusted prevalence of myopia and high...
In order to study the seismic response of the long-span through concrete filled steel tube (CFST) arch bridge, the finite element analysis software of ANSYS is applied to set up a modal according to a through CFST. The comparative study on seismic response analysis with the consideration of soil-pile-structure interaction by taking Tianjin seismic wave and EI Centro wave as the input waves, and then...
Based on the fuzzy probability theory of the third kind of fuzzy events, a new multi-objective optimization model of fuzzy probability is developed. And the application procedure of the fuzzy probability model is illuminated in detail. In order to assess index weighted value scientifically, the analytic hierarchy process (AHP) is introduced into the fuzzy weighted values to avoid the uncertainties...
This paper proposed a new procedure for simulation of random wind velocity field with only a few random variables. The procedure starts with decomposing the random wind velocity field into a product of a stochastic process and a random field, which represent the time property and spatial correlation property of the wind velocity fluctuation respectively. Then the stochastic process for wind velocity...
According to characteristics of bracing engineering for deep foundation pit in metro, an index system for supporting scheme is established. Using the theory of fuzzy probability and analytic hierarchy process (AHP), a comprehensive assessment model is constructed to optimize supporting scheme for deep excavation of metro. In order to assess the index weights scientifically, the fuzzy weighted value...
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