In an experience-sampling study, we tested the influence of goal progress on subsequent effort toward that goal among persons with bipolar disorder (BD) and among control subjects without BD. We hypothesized, overall, that unexpectedly low progress toward a goal would lead to an increase in subsequent effort toward that goal, and unexpectedly high progress would lead to a decrease in effort (pe...

Electron build-up and collective beam instabilities in the J-PARC rings has been expected by simulation. Bunched beam parameters are close to instability threshold. Coasting beam is stable at the nominal parameter. One of implications is that J-PARC is not in saturation regime, which suggests that keeping the source of electrons, i.e. beam losses, less than a critical value is effective to redu...

Electron clouds (EC) generated by residual gas ionization pose a potential threat to the stability of the circulating heavy ion beams in the existing SIS-18 synchrotron and in the projected SIS-100. The electrons can potentially accumulate in the space charge potential of the long bunches. As an extreme case we study the accumulation of electrons in a coasting beam under conditions relevant in ...

Train energy-efficient operation problem applies the optimal control theory to optimize the speed profile between successive stations such that the tracking energy is minimized. Traditional studies show that the optimal speed profile consists of four phases including maximum acceleration, cruising, coasting and maximum braking. Based on the assumption that the resistance coefficients are random...