A prompt, accurate and highly practical drowsiness detecting device and a waking device operatively connected with the same are provided. Drowsiness of a vehicle driver or the like is detected to wake him/her up to prevent the drowsiness from causing an ac...

An electric double-layer capacitor comprises a carbon composite electrode which serves as a polarizing electrode (31) and is made of a single-layer carbon nanohorn aggregate having a specific structure and a very large surface area. The single carbon nanoh...

There is provided a C12A7 compound capable of selectively and reversibly clathrating X ions, such as active oxygen radicals, with improved controllability. The C12A7 compound clathrating OH ions and On at a concentration of 2 x 10 cm or less can be prepare...

There is provided a body construction of an electric car, in which a flat floor construction of the car body allowing batteries to be easily built therein and removed therefrom and to be accommodated under the floor in a space-effective manner is formed an...