A latch assembly secures a striker of a seat cushion to a floor of a motor vehicle. The wireless communication device comprises a printed circuit board, a cover, and a planar antenna module. The approach adds one or more factors that depend on the investment portfolio and that explicitly compensate for factors that are unspecified or unattributed in the original factor risk model. A remote controller unit may be provided for ergonomic operation by the user. A controller is further provided for controlling a change of display data of each color of the liquid crystal display and an emitted light quantity of each color of the backlight unit at a time, based on a video signal being inputted for displaying the corresponding image and an output signal sent from an ambient light sensor for sensing ambient light. During operation a turbulent gasliquid phase is formed in the upper part of the chamber and mainly a fluid phase is formed in the lower part of the chamber.