Abstract: A system includes a first source including a first reactant; a second source including a second reactant capable of reacting with the first reactant to form a first product; and a reactor. The reactor includes a first element having a wall connecting a first point and a second point, the wall extending more than 180° around the first point; and a second element movably engaged with the first element to define a reconfigurable reaction chamber capable of being in fluid communication with the first and second reactants.

Abstract: A system includes a first source including a first reactant; a second source including a second reactant capable of reacting with the first reactant to form a first product; and a reactor. The reactor includes a first element having a wall connecting a first point and a second point, the wall extending more than 180° around the first point; and a second element movably engaged with the first element to define a reconfigurable reaction chamber capable of being in fluid communication with the first and second reactants.

Abstract: High-heeled footwear has a heel with a resilient compressible element allowing the heel of the foot to be lowered at heel strike to approximate a normal walking pattern in low-heeled shoes. Preferably, the footwear also includes a midfoot support structure, which may be a sprung footbed, or a sling and reinforcement girder, and which serves to redistribute load from the wearer's forefoot to her midfoot.

Abstract: High-heeled footwear has a heel with a resilient compressible element allowing the heel of the foot to be lowered at heel strike to approximate a normal walking pattern in low-heeled shoes. Preferably, the footwear also includes a midfoot support structure, which may be a sprung footbed, or a sling and reinforcement girder, and which serves to redistribute load from the wearer's forefoot to her midfoot.

Abstract: Method and apparatus for optimizing file structures stored on a memory device operatively associated with a computer. Particularly suited to optimizing individual resources within a given file to minimize seek and access time of the storage device, the present invention significantly improves execution speed of computer programs stored on CD-ROM disks. A resource optimizer first lists each resource of a given file as it is accessed, thereby forming a sequential listing of the several resources in order accessed. This list is then appended to the file. A resource arranger is then run which accesses the sequential listing and re-writes the file in access order. As the rewritten files are in resource access order, they improve the execution speed of the application program.