Abstract: A device for providing a liquid helium forced flow cooling fluid is provided, including a liquid helium vessel system for heat load, a liquid helium vessel system for circulation pump, a liquid helium vessel system for subcooled helium, and a cold box. The liquid helium vessel system for heat load absorbs the heat load of a cryogenic user; the liquid helium vessel system for circulation pump absorbs the heat load of a circulation pump; the liquid helium vessel system for subcooled helium absorbs the heat load of subcooled helium; the device process pipelines and the cold box achieve a pre-cooling process of a cryogenic user, a pre-cooling and liquid storage process of liquid helium vessels, and a pre-cooling and starting-up process of rotating machines, and provide the liquid helium forced flow cooling fluid to accomplish the operations of a cryogenic user.

Abstract: A flexible foot-conforming shoe 10 has an upper assembly 18 attached to a bottom assembly 26. The upper assembly 18 includes a vamp 12 having an upper edge 34 to which an upper sock lining 14 is attached. An elastic strip 16 is also attached to the upper edge 34 of the vamp 12 to form an elastic collar for hugging the instep of a foot inserted in the shoe 10. The bottom assembly 26 has a bottom sock lining 20 including a perimeter edge 46. This perimeter edge 46 is fastened to a lower attachment edge 47 of the upper sock lining 14 to form a sock lining for surrounding the foot.