Abstract: The present invention provides a tensegrity joint comprising: a first inner structure having a first frame and a first strut extending orthogonally from the first frame; a second inner structure having a second frame and a second strut extending orthogonally from the second frame; at least three actuation tendons, each being fixed at a respective hole at the first frame and being guided and allowed to slide through a respective hole at the second frame; a central tendon connecting an apex of the first strut and an apex of the second strut such that the central tendon is in balance with the pulling forces exerted by the at least three actuation tendons; and an outer elastic protection sheath configured to wrap on a cylindrical surface between the first and second inner structures.

Abstract: A hand-held pneumatic pollinator for hybrid rice seed production and a method thereof are provided. The pollinator includes a hand-held power chassis, a lifting assembly, a pneumatic pollination assembly, and a control assembly. A position of each of air blowing pipes relative to an ear of the male parent is adjusted by the control assembly and the lifting assembly. The pneumatic pollination assembly is provided with a plurality of air blowing pipes, of which the number is less than rows of the male parent of a hybrid rice seed production with a relatively large row ratio. Each air blowing pipe is located between corresponding two rows of the male parent during pollination. The directional, uniform and constant airflow at an air blowing port blows a pollen off a stamen to transport the pollen to the female parent compartment.

Abstract: A hand-held pneumatic pollinator for hybrid rice seed production and a method thereof are provided. The pollinator includes a hand-held power chassis, a lifting assembly, a pneumatic pollination assembly, and a control assembly. A position of each of air blowing pipes relative to an ear of the male parent is adjusted by the control assembly and the lifting assembly. The pneumatic pollination assembly is provided with a plurality of air blowing pipes, of which the number is less than rows of the male parent of a hybrid rice seed production with a relatively large row ratio. Each air blowing pipe is located between corresponding two rows of the male parent during pollination. The directional, uniform and constant airflow at an air blowing port blows a pollen off a stamen to transport the pollen to the female parent compartment.