A device for selecting sperm includes a stack of a plurality of layers of a material. The stack has an inlet end and an outlet end. Each layer of the material includes a plurality of sperm selection microchannels. Each sperm selection microchannel has a respective microchannel inlet at the inlet end of the stack and extends to a respective microchannel outlet at the outlet end of the stack.

A device for selecting sperm includes a stack of a plurality of layers of a material. The stack has an inlet end and an outlet end. Each layer of the material includes a plurality of sperm selection microchannels. Each sperm selection microchannel has a respective microchannel inlet at the inlet end of the stack and extends to a respective microchannel outlet at the outlet end of the stack.

A method embodiment for forming the fishing rod can include forming a tube comprising a carbon sheet. The tube can be formed by rolling the carbon sheet around a rod template. The formed tube can comprise a proximal region and a distal region. The method can further comprise coupling an assembly. The assembly can comprise the tube and a reel seat. During coupling of the assembly, the reel seat can encompass a distal region of the tube. The assembly can be molded for structural integrity by applying heat to the assembly and allowing the assembly to cure.

A system for constructing a composite structure includes a braiding machine, a winding tool and a forming machine. The composite structure is constructed of a wound tubular braiding. The wound tubular braiding is constructed of a biaxial or triaxial tubular braid of unidirectional tape.

Elastomeric bypass grafts (EBG) described herein can be pre-stretched and are able to accommodate limb flexion-induced or organ-induced deformations without producing excessive tortuosity or stresses. In comparison to known grafts, EBGs demonstrate significantly less tortuosity when used for lower extremity repair during limb flexion, and improved flow patterns within the grafts. Longitudinally pre-stretched EBGs described herein improve hemodynamics and may produce better healing responses in the harsh mechanical environment of the lower limbs, compared to known grafts.

Elastomeric bypass grafts (EBG) described herein can be pre-stretched and are able to accommodate limb flexion-induced or organ-induced deformations without producing excessive tortuosity or stresses. In comparison to known grafts, EBGs demonstrate significantly less tortuosity when used for lower extremity repair during limb flexion, and improved flow patterns within the grafts. Longitudinally pre-stretched EBGs described herein improve hemodynamics and may produce better healing responses in the harsh mechanical environment of the lower limbs, compared to known grafts.

A manufacturing method of a high-pressure tank includes a step of forming a first reinforcing body involving cooling a first resin-impregnated fiber bundle fed from a fiber bundle feeding device and having a first temperature to a second temperature lower than the first temperature and winding the cooled first resin-impregnated fiber bundle around a mandrel or a liner. The first resin-impregnated fiber bundle includes fine particles that contain an acrylic resin or a butadiene resin as a main component. A high-pressure tank including the liner that houses gas and the first reinforcing body that covers an outer surface of the liner is manufactured.

A manufacturing method of a high-pressure tank includes a step of forming a first reinforcing body involving cooling a first resin-impregnated fiber bundle fed from a fiber bundle feeding device and having a first temperature to a second temperature lower than the first temperature and winding the cooled first resin-impregnated fiber bundle around a mandrel or a liner. The first resin-impregnated fiber bundle includes fine particles that contain an acrylic resin or a butadiene resin as a main component. A high-pressure tank including the liner that houses gas and the first reinforcing body that covers an outer surface of the liner is manufactured.

A method for continuously producing a composite material is disclosed. In some implementations, the method includes supplying a thermoplastic resin having an initial density, mixing polypropylene-graft-maleic anhydride (PPgMA) formed of a plurality of interconnected PPgMA molecules throughout the thermoplastic resin, distributing a plurality of carbon particles throughout the thermoplastic resin and the plurality of interconnected PPgMA molecules, and forming, by rotational molding, the composite material based on a combination of the thermoplastic resin, the PPgMA, and at least some of the plurality of carbon particles.

A method for continuously producing a composite material is disclosed. In some implementations, the method includes supplying a thermoplastic resin having an initial density, mixing polypropylene-graft-maleic anhydride (PPgMA) formed of a plurality of interconnected PPgMA molecules throughout the thermoplastic resin, distributing a plurality of carbon particles throughout the thermoplastic resin and the plurality of interconnected PPgMA molecules, and forming, by rotational molding, the composite material based on a combination of the thermoplastic resin, the PPgMA, and at least some of the plurality of carbon particles.