A braided rope includes a plurality of braided strands comprising twisted yarns. Each of the twisted yarns includes a blend of first fibers and second fibers. The first fibers are high modulus polyethylene (HMPE) fibers and the second fibers may be lyotropic polymer filaments, thermotropic polymer filaments, or polyphenylene benzobisoxazole fibers. The first fibers can have a creep rate of no more than 3.0×10.sup.−8 percent per second at 20° C. while subjected to a stress of 5.0 grams/dtex. The first fibers can have a creep rate of no more than 1.0×10.sup.−7 percent per second at 20° C. while subjected to a stress of 7.5 grams/dtex.

A braided rope includes a plurality of braided strands comprising twisted yarns. Each of the twisted yarns includes a blend of first fibers and second fibers. The first fibers are high modulus polyethylene (HMPE) fibers and the second fibers may be lyotropic polymer filaments, thermotropic polymer filaments, or polyphenylene benzobisoxazole fibers. The first fibers can have a creep rate of no more than 3.0×10.sup.−8 percent per second at 20° C. while subjected to a stress of 5.0 grams/dtex. The first fibers can have a creep rate of no more than 1.0×10.sup.−7 percent per second at 20° C. while subjected to a stress of 7.5 grams/dtex.

The method includes forming an inner monolithic layer from crystals of beta phase stoichiometric silicon carbide on a carbon substrate in the form of a rod by chemical methylsilane vapor deposition in a sealed tubular hot-wall CVD reactor. The method further includes forming a central composite layer over the inner monolithic layer by twisting continuous beta phase stoichiometric silicon carbide fibers into tows, transporting the tows to a braiding machine, and forming a reinforcing thread framework. A pyrocarbon interface coating is built up by chemical methane vapor deposition in a sealed tubular hot-wall CVD reactor. Then, a matrix is formed by chemical methylsilane vapor deposition in the reactor. A protective outer monolithic layer is formed from crystals of beta phase stoichiometric silicon carbide over the central composite layer by chemical methylsilane vapor deposition in a CVD reactor. And then the carbon substrate is removed from the fabricated semi-finished product.

The method includes forming an inner monolithic layer from crystals of beta phase stoichiometric silicon carbide on a carbon substrate in the form of a rod by chemical methylsilane vapor deposition in a sealed tubular hot-wall CVD reactor. The method further includes forming a central composite layer over the inner monolithic layer by twisting continuous beta phase stoichiometric silicon carbide fibers into tows, transporting the tows to a braiding machine, and forming a reinforcing thread framework. A pyrocarbon interface coating is built up by chemical methane vapor deposition in a sealed tubular hot-wall CVD reactor. Then, a matrix is formed by chemical methylsilane vapor deposition in the reactor. A protective outer monolithic layer is formed from crystals of beta phase stoichiometric silicon carbide over the central composite layer by chemical methylsilane vapor deposition in a CVD reactor. And then the carbon substrate is removed from the fabricated semi-finished product.

A structure includes an oriented piezoelectric polymer arranged in a circular tubular or circular columnar shape, wherein the orientation angle of the piezoelectric polymer with respect to the central axis of the structure is 15° to 75°, the piezoelectric polymer includes a crystalline polymer having an absolute value of 0.1 to 1000 pC/N for the piezoelectric constant d14 when the orientation axis is the third axis, and the piezoelectric polymer includes a P-body containing a crystalline polymer with a positive piezoelectric constant d14 value and an N-body containing a crystalline polymer with a negative value, wherein for the portion of the central axis of the structure having a length of 1 cm, the value of T1/T2 is 0 to 0.8, T1 being the smaller and T2 being the larger of (ZP+SN) and (SP+ZN), where ZP, SP, ZN, and SN are particularly defined masses.

A structure includes an oriented piezoelectric polymer arranged in a circular tubular or circular columnar shape, wherein the orientation angle of the piezoelectric polymer with respect to the central axis of the structure is 15° to 75°, the piezoelectric polymer includes a crystalline polymer having an absolute value of 0.1 to 1000 pC/N for the piezoelectric constant d14 when the orientation axis is the third axis, and the piezoelectric polymer includes a P-body containing a crystalline polymer with a positive piezoelectric constant d14 value and an N-body containing a crystalline polymer with a negative value, wherein for the portion of the central axis of the structure having a length of 1 cm, the value of T1/T2 is 0 to 0.8, T1 being the smaller and T2 being the larger of (ZP+SN) and (SP+ZN), where ZP, SP, ZN, and SN are particularly defined masses.

A restraint net is provided for use in restraining a tight grouping of flowline elements where restraint lines are unusable. The restraint net includes a net body woven of one or more restraining ropes; and a net perimeter comprising one or more restraining ropes, surrounding the net body. The restraint net is configured to cover the tight grouping of flowline elements and being of sufficient tensile strength to restraint movement of the flowline elements in case of a failure or separation of the flowline elements in the tight grouping. A method is also provided of restraining a tight grouping of flowline elements where restraint lines are unusable. The method includes: providing the restraint net as described above; coupling a first point of the net perimeter to any one or more of an anchoring device, an adjacent restraint net or an adjacent restraint line; extending the net body over the tight grouping of flowline elements; and securing one or more further points of the net perimeter to one or more further anchoring devices, one or more further restraint nets, or one or more further adjacent restraint lines. Upon a failure or separation of the flowline elements, the restraining net restrains movement of the flowline elements.

A restraint net is provided for use in restraining a tight grouping of flowline elements where restraint lines are unusable. The restraint net includes a net body woven of one or more restraining ropes; and a net perimeter comprising one or more restraining ropes, surrounding the net body. The restraint net is configured to cover the tight grouping of flowline elements and being of sufficient tensile strength to restraint movement of the flowline elements in case of a failure or separation of the flowline elements in the tight grouping. A method is also provided of restraining a tight grouping of flowline elements where restraint lines are unusable. The method includes: providing the restraint net as described above; coupling a first point of the net perimeter to any one or more of an anchoring device, an adjacent restraint net or an adjacent restraint line; extending the net body over the tight grouping of flowline elements; and securing one or more further points of the net perimeter to one or more further anchoring devices, one or more further restraint nets, or one or more further adjacent restraint lines. Upon a failure or separation of the flowline elements, the restraining net restrains movement of the flowline elements.

An exercise prop for use in the performance of floor-based exercises such as Pilates and isometric exercises is provided. The exercise prop includes a braided body having a looped handgrip at each end. A method for fabricating an exercise prop is also provided.

An exercise prop for use in the performance of floor-based exercises such as Pilates and isometric exercises is provided. The exercise prop includes a braided body having a looped handgrip at each end. A method for fabricating an exercise prop is also provided.