Abstract: This disclosure relates to a biological tissue forming method includes the following steps: providing a biological tissue forming package with a base, a membrane, a sliding assembly and a sealing film that seals a chamber of the base used for receiving the membrane and the sliding assembly with one of the base and the sealing film being light-transmitting; passing a biological tissue fluid through the sealing film and the sliding assembly so as to be dispensed on the membrane; moving the sliding assembly away from a covering position used for covering the membrane via at least one passive magnetic element so as to expose the biological tissue fluid on the membrane; and emitting the biological tissue fluid exposed on the membrane by a curing light transmitting through the one of the base and the sealing film so as to cure the biological tissue fluid into a biological tissue.

Abstract: A baseplate holder for conveniently securing a mother board on a baseplate has a -shaped profile, the top face thereof being formed with a hook or a threaded hole, both vertical sidewalls being each provided on the end with a horizontal projection for insertion into the respective stamped hole on the baseplate. If a threaded hole is formed on the top face of the holder, the edges of a hole formed on the respective vertical sidewall can be formed with at least a tongue extending inwardly to support the screw passing through the threaded hole.

Abstract: A hybrid bridge construction comprises a pair of piers enclosed in the earth at a fixed predetermined distance apart with a cantilever section supported on each pier. Each cantilever section comprises one or more vertical towers with a pair of inner and outer rigid compression members fixed to and extending upwardly and outwardly from the base of each tower. Outer tension members are attached to the top portions of each tower and to upper end portions of the compression members. A suspension section interconnecting the cantilever sections comprises catenary cable members attached to the upper end portions of inner compression members. A road deck extends between the piers, and vertical suspender members extend between the cable members and the road deck.

Abstract: In a pier having a series of spaced-apart horizontal pile caps surmounting and connecting the supporting piles together transversely of said pier, there is an integrated one-piece deck supported atop the pile caps so that it can slide thereon. A series of prestressing tendons connect the deck to the pile caps so that when a wharf is struck by a ship, the lengthening and shortening of the tendons and the sliding friction between the deck and the pile caps absorbs the impact load.

Abstract: A prestressed concrete pressure-containment vessel having one or more cavities within its external shell. The cavities, whether cylindrical or other shape, are totally contained by prestressing tendons, which apply forces to contain various pressures within the structure. By permitting and actually inducing controlled cracking of the vessel in the outer portions of the thick shell wall, one embodiment of a pressure-containment vessel relieves stresses and enhances resistance to very high internal pressures and to stresses due to high internal temperatures and steep temperature gradients.

Abstract: A prestressed concrete pressure-containment vessel having one or more cavities within its external shell. The cavities, whether cylindrical or other shape, are totally contained by prestressing tendons, which apply forces to contain various pressures within the structure. By permitting and actually inducing controlled cracking of the vessel in the outer portions of the thick shell wall, one embodiment of a pressure-containment vessel relieves stresses and enhances resistance to very high internal pressures and to stresses due to high internal temperatures and steep temperature gradients.

Abstract: A large, thin-shell cooling tower, a method for its erection, and novel precast units. Upon a foundation a series of angularly-extending columns is erected, and the columns are joined at their upper ends by a lower ring. Then a ribbed, waffle-like reinforced concrete wall is constructed to extend up from the lower ring and to provide a shell with a shape such as a hyperbolic paraboloid. The ribbed outer (or inner) surface strengthens the structure while enabling the thickness of the portions in between the ribs to be relatively thin. A series of vertically-spaced horizontal circumferential reinforcing bars or post-tensioning cables and a series of horizontally-spaced vertical or inclined bars or cables, are included in the wall. The wall is preferably made up from a series of precast units that are of novel structure in themselves. At the top of the wall is an upper ring joining the various elements together.

Abstract: A method for erecting a large, thin-shell cooling tower. Upon a foundation a series of angularly-extending columns is erected, and the columns are joined at their upper ends by a lower ring. Then a ribbed, waffle-like reinforced concrete wall is constructed to extend up from the lower ring and to provide a shell with a shape such as a hyperbolic paraboloid. The ribbed outer (or inner) surface strengthens the structure while enabling the thickness of the portions in between the ribs to be relatively thin. A series of vertically-spaced horizontal circumferential reinforcing bars or post-tensioning cables and a series of horizontally-spaced vertical or inclined bars or cables, are included in the wall. The wall is preferably made up from a series of precast units that are of novel structure in themselves. At the top of the wall is an upper ring joining the various elements together.

Abstract: A large, thin-shell cooling tower, a method for its erection, and novel precast units. Upon a foundation a series of angularly-extending columns is erected, and the columns are joined at their upper ends by a lower ring. Then a ribbed, waffle-like reinforced concrete wall is constructed to extend up from the lower ring and to provide a shell with a shape such as a hyperbolic paraboloid. The ribbed outer (or inner) surface strengthens the structure while enabling the thickness of the portions in between the ribs to be relatively thin. A series of vertically-spaced horizontal circumferential reinforcing bars or post-tensioning cables and a series of horizontally-spaced vertical or inclined bars or cables, are included in the wall. The wall is preferably made up from a series of precast units that are of novel structure in themselves. At the top of the wall is an upper ring joining the various elements together.