Abstract: A robotic working apparatus includes: a working robot configured to perform work while autonomously traveling in a set working area; and a controller configured to control motion of the working robot and including a working area setting section configured to partition and set the working area. The working area setting section sets an individual enclosed area overlapping with an existing working area.

Abstract: A method for composting organic wastes, including chopping the organic wastes, adjusting water content of the chopped organic wastes to about 20%-40% by weight, mixing an effective amount of EM-fermented feed with the chopped organic wastes such that the EM-fermented feed is substantially evenly distributed in the chopped organic wastes, and storing the chopped organic wastes having the EM-fermented feed in a closed container at suitable temperature for a predetermined period of time such that the chopped organic wastes are composted in the closed container by fermentation.

Abstract: A solar cell panel assembly for supplying power to a motor-driven screen apparatus mounted for movement between an inside glass plate and an outside glass plate spaced therefrom in a double-glazed sliding door unit includes a belt-like sheet of solar cell panels having its bottom edge portion disposed via a plurality of mount members so as to be held in contact with the lower inside portion of the outer glass plate, extending in the horizontal direction along the lower inside portion of the outer glass plate, and inclined in such manner that its top end portion extends toward the inner glass plate. Preferably, the solar cell panel is provided with a glass panel mounted in tight contact with an outer light receiving surface of the solar cell panel, and transparent resin having a refractive index equivalent to that of glass is filled by potting in a wedge-shaped space formed between the glass panel and the inner surface of the outer glass plate.

Abstract: A solar cell panel assembly for supplying power to a motor-driven screen device incorporated in a double-glazed sliding door unit, comprises a strip-like solar cell panel provided in a lower portion of an inner surface of an outer windowpane of the door unit so as to abut on the inner surface of the outer windowpane in facing engagement therewith; and an elongated solar collector or Fresnel lens a rear surface of which abuts on a lower portion of an outer surface of the outer windowpane in front of the strip-like solar cell panel. The solar cell panel assembly further comprises: a strip-like sunlight reflector provided below the elongated solar collector, which reflector has a reflective surface facing upward.