Abstract: The air conditioner according to an embodiment of the present disclosure includes: a base panel having a first communication hole formed in one side thereof, and a second communication hole formed in another side thereof; a variable panel disposed under the base panel and changed in shape to open and close the first communication hole and the second communication hole; and a driving device disposed on an upper side of the base panel and changing a position of one side of the variable panel in an up-down direction, so that the variable panel is changed in shape, wherein the variable panel includes: a first cover part disposed under the base panel to open and close the first communication hole; a second cover part disposed under the base panel to open and close the second communication hole; and a variable part disposed between the first cover part and the second cover part, and changing an inclination angle of the first cover part and the second cover part.

Abstract: The air conditioner according to an embodiment of the present disclosure includes: a base panel having a first communication hole formed in one side thereof, and a second communication hole formed in another side thereof; a variable panel disposed under the base panel and changed in shape to open and close the first communication hole and the second communication hole; and a driving device disposed on an upper side of the base panel and changing a position of one side of the variable panel in an up-down direction, so that the variable panel is changed in shape.

Abstract: The air conditioner according to an embodiment of the present disclosure includes: a base panel having an inlet formed in one side thereof, and an outlet formed in another side thereof; a variable panel disposed under the base panel and changed in shape to open and close the inlet and the outlet; and a driving device disposed on the base panel and changing a shape of the variable panel, thereby allowing the variable panel to cover the entire lower surface of base panel. In addition, the variable panel may open and close the inlet and the outlet. The variable panel includes: a fixed part disposed between the inlet and the outlet, and fixed in position vertically relative to the base panel; a cover part spaced apart from the fixed part and disposed at a lower side of the inlet or the outlet; and a variable part disposed between the fixed part and the cover part, and changing an inclination angle of the cover part.

Abstract: Alkaline-doped superconductors of the formulaX M.sub.2 Ca.sub.2 Cu.sub.3 O.sub.8+.alpha.are provided where X is selected from the group consisting of TI, Pb, Mo, Hg and mixtures thereof, M is selected from the group consisting of Ba, Sr and mixtures thereof, and a ranges from zero to about 0.2, and being doped with a dopant selected from the group consisting of Na and Li up to a level of up to about 12% molar ratio, based upon the amount of the element X taken as 100%. The superconductors of the invention exhibit extremely high T.sub.c onset and T.sub.cO values and have high J.sub.c properties as well. The superconductors can be fabricated at relatively low annealing temperatures (750.degree.-820.degree. C.) making them suitable for use as thin films with a variety of conventional substrates.