Abstract: In a three-dimensional object manufacturing method using a three-dimensional object manufacturing device for manufacturing a three-dimensional object by layering and stacking an ink layer in which a surface is flattened by a flattening roller for removing one part of the surface of the ink layer to adjust a thickness of the ink layer to a thickness t, where when forming ink layers with an inkjet head, an ink ejection amount reduction region in which an ejection amount of ink ejected by the inkjet head is reduced from an amount corresponding to the thickness t in a part corresponding to an interior of the three-dimensional object, and when forming the ink layers on an upper side of the specific ink layers with the inkjet head, an ejection amount of ink ejected by the inkjet head is increased from an amount corresponding to the thickness t.

Abstract: In a three-dimensional object manufacturing method using a three-dimensional object manufacturing device for manufacturing a three-dimensional object by layering and stacking an ink layer in which a surface is flattened by a flattening roller for removing one part of the surface of the ink layer to adjust a thickness of the ink layer to a thickness t, where when forming ink layers with an inkjet head, an ink ejection amount reduction region in which an ejection amount of ink ejected by the inkjet head is reduced from an amount corresponding to the thickness t in a part corresponding to an interior of the three-dimensional object, and when forming the ink layers on an upper side of the specific ink layers with the inkjet head, an ejection amount of ink ejected by the inkjet head is increased from an amount corresponding to the thickness t.

Abstract: A three-dimensional object shaping method and apparatus are provided that suppress a risk of a three-dimensional object being deformed. In the three-dimensional object shaping method, a three-dimensional object is formed on a working plane. This method includes a three-dimensional object shaping step and a deformation restrainer shaping step. In the deformation restrainer shaping step, a deformation restrainer is formed simultaneously with the three-dimensional object shaping step in contact in at least a part of the deformation restrainer with the three-dimensional object. The deformation restrainer is a portion distinct from a target portion of the three-dimensional object formed in the three-dimensional object shaping step and serving to generate a force that acts against stress causing the target portion to deform.

Abstract: In a method for treating a combustion exhaust gas from a waste burning facility, the exhaust gas has its temperature lowered to 180-230.degree. C., in a temperature lowering unit, is freed of dust in a dry dust collector, passed through a dioxin and NOx removing unit using a vanadium oxide-based catalyst and, thereafter, the exhaust gas at 180-230.degree. C. is further passed through a heat exchanger to effect heat recovery. The vanadium oxide-based catalyst is a vanadium oxide alone or the combination thereof either with an oxide of at least one element selected from the group consisting of molybdenum, tin, yttrium, boron and lead or with gold. In addition, a tungsten oxide may be used. These catalysts are preferably carried on titania for use. The method and an apparatus for implementing it require a simple system configuration and yet assure high thermal efficiency while achieving efficient removal of dioxins and nitrogen oxides.