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In this paper, an optical waveguide evanescent field fluorescence microscopy is studied. Based on Maxwell's equation, a seven‐layer theoretical analysis model is developed for the evaluation of an optical waveguide excitation fluorescence microscopy. The optical waveguide excitation fluorescence microscopy structure is systematically and comprehensively analysed at the wavelengths of 488, 532 and 646 nm for fluorescent dyes. The analysis results provide some useful suggestions, which will be beneficial to the research of an optical waveguide evanescent field fluorescence microscopy. LAY DESCRIPTION: An optical waveguide evanescent field fluorescence microscopy is studied in this paper. Considering the existence of cells, a seven‐layer theoretical analysis model of the optical waveguide excitation fluorescence microscopy is established. Based on this model, the effect of different parameters on the efficiency of optical waveguide excitation fluorescence microscopy is analysed. [ABSTRACT FROM AUTHOR]

A mechanical-electrical-hydraulic coupling dynamic model of ramming system was built by using MSC. Adams and Easy5. Its confidence was proved by using VV&A. A virtual prototyping-Monte Carlo simulation-support vector machine (VP-MCS-SVM) method was proposed to reduce the large computational volume of MCS method in solving the random dynamics of complex system, and the random dynamics simulation of ramming system was carried out efficiently and precisely. Based on the theory of statistic inference and reliability, the action reliability of ramming system was analyzed and the distribution parameters' shift was considered. It provides a new idea for the action reliability evaluation for large complex system. [ABSTRACT FROM AUTHOR]

Considered the coupling effects of classical interior ballistic equations and band's engraving process, the solution of interior ballistic equations was taken as the boundary condition of the simulation for engraving process, and the results of the simulation were taken as the initial conditions for the interior ballistic equations in the next step iteratively. A coupled constitutive model considered visco-plasticity and ductile damage and based on continuum damage mechanics was introduced to simulate the band's damage process. The Von Mises yield criterion, Johnson-Cook hardening model and Johnson-Cook fracture strain model were adopted, and the model considered large strain, high strain-rate, thermal softening and damage evolution. The model was implemented in the explicit finite element code by using VUMAT subroutine of Abaqus\Explicit module. The band's engraving processes of two different bore structures were simulated, and the influences of different engraving conditions on the stress state of the band were analyzed. The effects of band's stress state and bore structure on the interior ballistic performances were pointed out. It is very useful for the design of bore structure. [ABSTRACT FROM AUTHOR]