Abstract: A fan control circuit is installed on a fan and connected with a control source which outputs a fan starting signal to the fan control circuit based on a load state. The fan control circuit includes a switch and a control module, the switch is installed on the fan and is directly operated to switch to one of a plurality of states, and the control module is connected with the switch and a motor coil installed on the fan. The control module outputs a driving signal to the motor coil based on the fan starting signal. The driving signal and a rotating speed of the fan define a rotating speed curve. A change of the states of the switch changes a slope of the rotating speed curve of the fan.

Abstract: The identification and use of two major DNA-PKcs autophosphorylation sites. Threonine (T) 2609 and Serine (S) 2056, including antibodies specific for phosphorylated T2609 and 52056. Peptides and polynucleotides encoding same, that feature these two sites of phosphorylation. The antibodies do not bind to the unphosphorylated DNA-PKcs protein or peptide, thus providing diagnostic tools to monitor the effectiveness of treatments which target the DNA repair pathway of cancer cells, and the ability to intervene or inhibit in phosphorylation of T2609 or 52056, either through application of a drug or an antibody, to increase the radiosensitivity of cancer cells.