Removal OF EMG and ECG artifacts from EEG based on real time recurrent learning algorithm

Portable, heavy duty jacks used in the railway, mining and construction industries are expensive units including a motor, a pump, a working fluid reservoir and a hydraulic cylinder, all mounted on a wheeled carriage. The jacks are moved to a use location and often left in one position for a lengthy period of time. Thus, it is often necessary to stock a large number of expensive units. A simple solution to the problem involves a single power module including a carriage, a motor, a pump and a fluid reservoir, and separate lift modules including a hydraulic cylinder. A lift module is releasably connected to the power module for moving the module to a use location, where the hydraulic cylinder is actuated to raise a load. The two modules are then disconnected, another lift module is attached to the power module, and the resulting unit is moved to another use location.