We use a semiparametric GARCH-in-Mean copula model to examine the price evolution and volatility dynamics of crude oil, natural gas, hydrocarbon gas liquids markets using data from January 2002 December 2021. find that uncertainty has positive statistically significant effect on returns oil but negative ethane returns. also Frank is best describe (bivariate) dependence structures between market...

We conjecture a chaos energy bound, an upper bound on the dependence of Lyapunov exponent for any classical/quantum Hamiltonian mechanics and field theories. The states that $\ensuremath{\lambda}(E)$ grows no faster than linearly in total $E$ high limit. In other words, $c$ $\ensuremath{\lambda}(E)\ensuremath{\propto}{E}^{c}(E\ensuremath{\rightarrow}\ensuremath{\infty})$ satisfies $c\ensuremath...

This study aimed to investigate the energy dependence and the angular dependence of commercially available optically stimulated luminescence (OSL) point dosimeters in the mammography energy range. The energy dependence was evaluated to calculate calibration factors (CFs). The half-value layer range was 0.31-0.60 mmAl (Mo/Mo 22-28 kV, Mo/Rh 28-32 kV, and W/Rh 30-34 kV at 2-kV intervals). Mo/Rh 2...

SIRADs (self-indicating instant radiation alert dosimeters) are designed to measure accident radiation doses. As the energy of radiation is usually unknown in such situations, a detector with a weak energy dependence of its response to dose would be ideal. We have studied the energy dependence of the dose response of SIRADs in the range from 50kVp to 10MV, which corresponds to photon equivalent...