Abstract: A matrix for neuron regeneration. The matrix can include a sheet having a first surface and a second surface opposite the first surface, the second surface having a plurality of integrally formed ridges. The sheet can have a spiral shape, such that the first surface of the sheet faces the second surface of the sheet. The sheet and the integrally formed ridges can comprise oligo(poly(ethylene glycol) fumarate).

Abstract: Provided is a combustion engine having a combustion chamber. The combustion engine comprises an engine housing having an air intake port, a mixed conductor, a water intake port, an exhaust turbine and a hydrogen compressor assembly. The air intake port provides air to the mixed conductor which provides an oxygen-pure fraction of air to the combustion chamber by conducting oxygen ions in the air from a retentate side to a permeate side when the oxygen partial pressure on the permeate side is less than that on the retentate side. The water intake port provides water to the combustion chamber for combustion with hydrocarbon fuel and the oxygen-pure fraction of the air to produce exhaust fluid. The exhaust fluid expands in the exhaust turbine causing the turbine rotor to rotate producing mechanical energy. The hydrogen compressor assembly extracts hydrogen from the exhaust fluid and provides hydrogen to the exhaust turbine.

Abstract: A method of forming a flange in the bottom of a container by first removing a portion of the container bottom and then forming or swaying the material around the opening to form a flange extending away from the container bottom. A valve and valve cup assembly along with a heat exchange unit are positioned adjacent the flange and the combination is crimped to permanently affix the heat exchange unit to the bottom of the container.

Abstract: A gravity independent space vehicle freezer system which is adapted to provide optimal heat exchange to a medium to be cooled. The space vehicle freezer includes a heat exchange unit located in a housing or cold space, compressor, expander and electric motor. The expander allows the compressed refrigerant to expand at constant entropy instead of constant enthalpy, allowing the refrigerant gas to expand down to a very lower temperature. As a result, the compressed refrigerant can reject heat at a higher temperature prior to expanding to the necessary freezing temperature, thus reducing the size of radiators and providing critical weight and cost savings. The work produced by the expander is directed to the compressor to reduce the work load of the electric motor powering the compressor. The heat exchange unit includes a liner member routing the liquid refrigerant along the heat transfer surface, thereby isolating the evaporation process and overcoming the problem of separating liquid from gas in zero gravity.