The fouling behavior of a steam generator (SG) tube was investigated at different positions after 500 EU h of immersion in high-temperature water.A triple-layer structure of fouling appeared at both the crevice position and the free span position, namely, the large, dispersedly distributed deposition layer on the top; the small and faceted outer la
Introduction: Photodynamic therapy is a noninvasive therapeutic method for tumors with a maximum depth of 5 mm.On the other hand, most photosensitizers are also susceptible to ultrasound waves (the basis of sonodynamic therapy).Therefore, it is expected that a combination of the two therapeutic methods will increase effectiveness of photodynamic th
Brood parasitism reduces the reproductive success of EU hosts and many host birds have evolved a range of anti-parasitism strategies, including egg recognition and egg rejection.Recent studies have shown that host egg rejection behavior can vary according to personality traits and parasitism risk.However, these relationships have not been clearly d
In view of problem Wooden Ornament that traditional analysis method is difficult to obtain dynamic feature when mine hoist system happened fault, the paper proposed a self-tuning fault-tolerant PID control method for mine hoist based on BP neural network.The method employs neural network to predict system output value by learning and tracking dynam