Methods and apparatus are provided for preserving electronic resources identified as search results in a system location, such as a system folder. The residual limb has particular dimensions and anatomical contours; the prosthetic socket has dimensions and contours that fit the dimensions and contours of the residual limb. The organic thin film transistor includes a gate electrode, a gate insulating film, a source electrode, a drain electrode, and an organic semiconductor film. The resulting TiN films exhibit low resistivity and good uniformity. Dried playhcodi radix, ginseng radix and peach kernel are crushed, Eum-yang-kwak ) are cut into the same size as that of the cutted tobacco leaves and mixture of platycodi radix, ginseng radix and peach kernel, Eum-yang-kwak ) and tobacco leaves at the same proportion. The column-wheel is characterized in that said cross-section is asymmetrical, a first angle \u03b1 between the leading edge and the base being smaller than a second angle \u03b2 between the base and the trailing edge.