Свежие репортажи
Две страны ЕС заблокировали выделение Украине кредита на 90 миллиардов. Финансирование ВСУ находится под угрозой19:29
，这一点在snipaste截图中也有详细论述
Преподавательница вступила в связь с 13-летним учеником и совершила насилие над ним в автомобиле02:00
1.1.1. Manual control skills. Several studies (Edwards and Lees, 1974) have shown the difference between inexperienced and experienced process operators making a step change. The experienced operator makes the minimum number of actions, and the process output moves smoothly and quickly to the new level, while with an inexperienced operator it oscillates round the target value. Unfortunately, physical skills deteriorate when they are not used, particularly the refinements of gain and timing. This means that a formerly experienced operator who has been monitoring an automated process may now be an inexperienced one. If they take over they may set the process into oscillation. They may have to wait for feedback, rather than controlling by open-loop, and it will be difficult for them to interpret whether the feedback shows that there is something wrong with the system or more simply that they have misjudged their control action. They will need to make actions to counteract their ineffective control, which will add to their work load. When manual takeover is needed there is likely to be something wrong with the process, so that unusual actions will be needed to control it, and one can argue that the operator needs to be more rather than less skilled, and less rather than more loaded [with task work and mental work], than average.