Abstract: A deployable structure comprises a first and second flexible tension members respectively defining a first and second contours of a ring. A first plurality of rigid compression members extends between the first and second contours. Only one end of each first plurality compression member is mounted on the first contour. A second plurality of rigid compression members extends between the first and second contours. Only one end of each second plurality compression member is mounted on the second contour. The first and second plurality of compression members are arranged with a repetitive crossing pattern around the ring. A first plurality of flexible tension members link each end of a compression member mounted on one of said contours to an end of another non-mounted compression member and a second plurality of flexible tension members link each end of a non-mounted compression member to an end of another non-mounted compression member.

Abstract: A barrier device for withholding odors released by a malodorous substance, particularly for purifying plants; the barrier device is provided with a plurality of atomizing nozzles for generating a layer of atomized liquid for covering the free upper surface of the malodorous substance.