An experiment is designed to test if individuals show (unrealistic) optimism when determining their subjective probabilities about exogenous circumstances. Subjects in the control group make an informed guess about a number, under a payment scheme that rewards close guesses. In the treatment group, subjects' payments depend on the actual number as well as on the closeness of the guess, and they...

A good initial guess and an appropriate homotopy equation are two main factors in applications of the perturbation method. For a nonlinear oscillator, cosine function is used guess. This article recommends general approach to construction equation. Duffing oscillator adopted as example elucidate effectiveness

Abstract. The Arctic is warming rapidly, especially in winter, which causing large-scale reductions snow cover. Snow one of the main controls on soil thermodynamics, and changes its thickness extent affect both permafrost thaw biogeochemistry. Since respiration during cold season potentially offsets carbon uptake growing season, it essential to achieve a realistic simulation effect cover condit...

This paper investigates a new approach for solving the forward kinematics of cable-driven parallel robots. This approach combines an interval algorithm with neural networks to provide a fast but accurate initial guess. The neural networks increase the computation speed by a factor of 200 or more, while the interval algorithm provides guaranteed convergence and a definite solution to any chosen ...